c7d56b0e29
It's needed when the surface window is a depth 24 descendant of a depth 32 toplevel window. xwl_source_validate ensures the toplevel window pixmap has valid contents when a client reads from it, or when the window hierarchy / geometry changes. It's never called in the normal fullscreen application case, so there's no GPU copy overhead with that. v2: * Don't try to redirect a depth 32 descendant of different-depth ancestors, the alpha channel wouldn't be handled correctly. (Olivier Fourdan) Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1300> |
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