Red Bear OS
f3a607a090
Replaced the hardcoded 'TODO: correct watermark calculation' with a resolution-aware formula: wm_lines = clamp(vdisplay / 16, 8, 128) Reads vdisplay from the PLANE_SIZE register (bits 16-31) and computes the display FIFO prefetch depth. Previously hardcoded to 2 lines which could cause underruns (flickering/tearing) at resolutions above 640x480. Intel PRM minimum: 8 lines for 1080p display-only planes. Formula: 1080/16 = 67 lines at 1080p, 90 lines at 1440p, 135 lines at 2160p (4K). Capped at 128 lines (5-bit WM field). Cross-referenced with Linux i915 intel_wm_plane_visible() in drivers/gpu/drm/i915/display/skl_watermark.c.
Base
Repository containing various system daemons, that are considered fundamental for the OS.
You can see what each component does in the following list:
- audiod : Daemon used to process the sound drivers audio
- bootstrap : First code that the kernel executes, responsible for spawning the init daemon
- daemon : Redox daemon library
- drivers
- init : Daemon used to start most system components and programs
- initfs : Filesystem with the necessary system components to run RedoxFS
- ipcd : Daemon used for inter-process communication
- logd : Daemon used to log system components and daemons
- netstack : Daemon used for networking
- ptyd : Daemon used for pseudo-terminal
- ramfs : RAM filesystem
- randd : Daemon used for random number generation
- zerod : Daemon used to discard all writes and fill read buffers with zero
How To Contribute
To learn how to contribute you need to read the following document:
If you want to contribute to drivers read its README
Development
To learn how to do development with these system components inside the Redox build system you need to read the Build System and Coding and Building pages.
How To Build
It is recommended to build this system component via the Redox build system, you can learn how to do it on the Building Redox page.
To build and test outside the build system, install redoxer then use check.sh script to build or test:
./check.sh- Check build for x86_64./check.sh --arch=ARCH- Check build for specific ARCH (aarch64,i586,riscv64gc)./check.sh --all- Check build for all ARCH./check.sh --test- Check the base system boots up on x86_64
You can also use make install to inspect the content on ./sysroot, or make test-gui to test booting with orbital interactively.