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RedBear-OS/recipes/tools/file/source/magic/Magdir/weak
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vasilito 7686729069 drm: implement syncobj and fence for VIRGL/VirtIO driver
Extract protocol-agnostic FenceTimeline from Intel to shared
src/drivers/fence.rs — atomic-based fence tracking suitable
for Intel, VIRGL, and AMD drivers.

Extract protocol-agnostic SyncobjManager from Intel to shared
src/drivers/syncobj.rs — syncobj create/destroy/signal/reset/
wait/query and sync_file fd export/import.

Wire both into VirtioDriver:
- Add FenceTimeline + SyncobjManager fields
- Implement all 5 GpuDriver syncobj trait methods
  (create, destroy, wait, export_fd, import_fd)
- Track fence seqnos in virgl_submit_3d (allocate
  before submit, signal after completion)

Intel fence.rs and syncobj.rs converted to thin re-export
modules pointing at shared sources — no behavioral change
for Intel driver.

This gives Mesa VIRGL userspace the standard DRM syncobj
API for GPU/compositor synchronization.
2026-06-02 14:33:28 +03:00

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#------------------------------------------------------------------------------
# $File: weak,v 1.3 2024/06/10 23:09:52 christos Exp $
# weak: file(1) magic for very weak magic entries, disabled by default
#
# These entries are so weak that they might interfere identification of
# other formats. Example include:
# - Only identify for 1 or 2 bytes
# - Match against very wide range of values
# - Match against generic word in some spoken languages (e.g. English)
# Summary: Computer Graphics Metafile
# Extension: .cgm
#0 beshort&0xffe0 0x0020 binary Computer Graphics Metafile
#0 beshort 0x3020 character Computer Graphics Metafile
#0 string =!! Bennet Yee's "face" format