Jeremy Huddleston Sequoia ef781045ee rootless: Protect alpha channel for Render operations ... The Render extension operates on PictFormats rather than GC, so it bypasses the rootless layer's GC-based alpha protection (ROOTLESS_PROTECT_ALPHA). Depth-24 windows use PICT_x8r8g8b8 where the 'x' tells pixman the high byte is padding it may freely zero. The macOS compositor needs this byte to be 0xFF (opaque). Before each Render operation that targets a rootless window, temporarily upgrade the destination Picture's format from PICT_x8r8g8b8 to PICT_a8r8g8b8. This tells pixman that the alpha channel is significant and must not be optimized away. The format is restored after the operation completes. This parallels how ROOTLESS_PROTECT_ALPHA handles GC operations (by masking alpha out of the planemask) and how ROOTLESS_SAFEALPHA handles PaintWindow (by forcing alpha in solid fills). The save/restore approach is analogous to rootlessGC.c's GC_SAVE / GC_RESTORE pattern. Fixes [2/2]: https://github.com/XQuartz/XQuartz/issues/31 Signed-off-by: Jeremy Huddleston Sequoia <jeremyhu@apple.com> (cherry picked from commit d2e83a266c)		2026-03-24 20:59:03 -07:00
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damage	meson: hide C API if Xorg is disabled (like autotools)	2021-03-11 00:22:36 +00:00
rootless	rootless: Protect alpha channel for Render operations	2026-03-24 20:59:03 -07:00
shadow	meson: hide C API if Xorg is disabled (like autotools)	2021-03-11 00:22:36 +00:00
sync	Drop XWayland DDX	2021-09-15 21:49:17 +03:00
Makefile.am	rootless: Build unconditionally	2015-07-08 16:41:28 -04:00