436fd7e8b4
The Render protocol requires this format, but it is wrong to do so. We are not aware of any hardware with a real 4bpp implementation of this format. Some GL hardware may have GL_LUMINANCE4_ALPHA4_EXT, and may also be able to wire L to 1, but that would win you none of memory, quality, or (likely) performance over A8. Any attempt to use this format is therefore likely a (painful) software fallback. Pleasantly (and given the above, unsurprisingly) it seems to be unused in the wild. None of the major toolkits will try to use it, and rendercheck does not in fact validate that all of the "standard" picture formats exist. Drop the explicit A4 setup from picture format initialization. Note that the DDXes are not changed and still expose a depth-4 pixmap format, but we only add picture formats for True/DirectColor-credible depths (i.e. depth >= 15). Implements: xorg/proto/xorgproto!1 Signed-off-by: Adam Jackson <ajax@redhat.com> |
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X Server
The X server accepts requests from client applications to create windows, which are (normally rectangular) "virtual screens" that the client program can draw into.
Windows are then composed on the actual screen by the X server (or by a separate composite manager) as directed by the window manager, which usually communicates with the user via graphical controls such as buttons and draggable titlebars and borders.
For a comprehensive overview of X Server and X Window System, consult the following article: https://en.wikipedia.org/wiki/X_server
All questions regarding this software should be directed at the Xorg mailing list:
https://lists.freedesktop.org/mailman/listinfo/xorg
The master development code repository can be found at:
https://gitlab.freedesktop.org/xorg/xserver
For patch submission instructions, see:
https://www.x.org/wiki/Development/Documentation/SubmittingPatches
As with other projects hosted on freedesktop.org, X.Org follows its Code of Conduct, based on the Contributor Covenant. Please conduct yourself in a respectful and civilized manner when using the above mailing lists, bug trackers, etc: