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Icenowy Zheng fa7396a611 glamor: Fix dual blend on GLES3 
The EXT_blend_func_extended extension on ESSL always requires explicit
request to allow two FS out variables because of limitations of the ESSL
language, which is mentioned as the No.6 issue of the extension's
specification.

Fix this by adding the extension request.

The original behavior on GLES3 is slightly against the specification of
GL_EXT_blend_func_extended extension, however Mesa and older version of
PowerVR closed drivers will just ignore this issue. Newest PowerVR
closed driver will bail out on this problem, so it deems a fix now.

Fixes: ee107cd491 ("glamor: support GLES3 shaders")
Signed-off-by: Icenowy Zheng <uwu@icenowy.me>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1750>
(cherry picked from commit eba15f1ba7)
2026-01-25 10:40:02 -08:00
.gitlab-ci ci: Install XCB dependencies for meson tests 2026-01-25 10:40:01 -08:00
composite composite: initialize border clip even when pixmap alloc fails 2026-01-25 10:40:01 -08:00
config linux: Fix BUS_PLATFORM detection for non-PCI devices 2026-01-25 10:40:00 -08:00
damageext damage: drop swapping request length fields 2026-01-25 10:39:59 -08:00
dbe dbe: fix byte swapping in SProcDbeSwapBuffers() 2026-01-25 10:40:00 -08:00
dix os: Do not overflow the integer size with BigRequest 2026-01-25 10:40:01 -08:00
doc doc: drop removed PaintWindowBackground() and PaintWindowBorder() 2026-01-25 10:40:00 -08:00
dri3 dri3: drop swapping request length fields 2026-01-25 10:39:59 -08:00
exa Move sizeof to second argument in calloc calls 2026-01-25 10:39:55 -08:00
fb Revert "fb: Declare wfbFinishScreenInit, wfbScreenInit for !FB_ACCESS_WRAPPER" 2026-01-25 10:39:58 -08:00
glamor glamor: Fix dual blend on GLES3 2026-01-25 10:40:02 -08:00
glx glx: DoQueryContext(): explicitly use reply buf type defined by spec 2026-01-25 10:39:58 -08:00
hw xwayland: Dispatch tablet tool tip events after frame events 2026-01-25 10:40:02 -08:00
include dix-config.h: define HAVE_STRUCT_SOCKADDR_STORAGE for xtrans 1.6 2026-01-25 10:40:01 -08:00
man man pages: strip trailing whitespace 2026-01-25 10:40:01 -08:00
mi mi: use common implementation of bit counting function 2026-01-25 10:40:01 -08:00
miext miext: rootless: fix unused variables 2026-01-25 10:40:00 -08:00
os os: Check for integer overflow on BigRequest length 2026-01-25 10:40:02 -08:00
present present: need to include geext.h 2026-01-25 10:40:00 -08:00
pseudoramiX pseudoramiX: drop swapping request length fields 2026-01-25 10:39:58 -08:00
randr randr: Do not leak the provider property 2026-01-25 10:40:02 -08:00
record record: Check for overflow in RecordSanityCheckRegisterClients() 2026-01-25 10:40:01 -08:00
render render: Avoid 0 or less animated cursors 2026-01-25 10:40:01 -08:00
test test: remove extra return 2026-01-25 10:40:01 -08:00
Xext sync: Apply changes last in SyncChangeAlarmAttributes() 2026-01-25 10:40:01 -08:00
xfixes xfixes: Check request length for SetClientDisconnectMode 2026-01-25 10:40:01 -08:00
Xi Xi: disallow grabbing disabled devices 2026-01-25 10:40:01 -08:00
xkb xkb: Add tbGetBufferString helper function 2026-01-25 10:40:01 -08:00
.appveyor.yml appveyor: Add libxcvt build dep 2021-11-04 13:03:25 +00:00
.dir-locals.el .dir-locals.el: Add missing final newline 2019-10-01 17:05:28 +00:00
.git-blame-ignore-revs Ignore the coding style change commit during git blame 2026-01-25 10:39:58 -08:00
.gitignore Clean up the .gitignore file 2024-01-12 00:50:24 +00:00
.gitlab-ci.yml ci: fix missing runner tag on FreeBSD jobs after gitlab migration 2026-01-25 10:40:01 -08:00
.mailmap Update mailmap for Peter Harris 2026-01-25 10:40:01 -08:00
.travis.yml travis: Add OSX meson build to matrix 2019-05-02 15:42:58 +00:00
COPYING modesetting: Merge modesetting's COPYING into the xserver's. 2014-09-15 12:46:02 -07:00
meson.build meson.build: print a summary of the DDX to build 2026-01-25 10:40:01 -08:00
meson_options.txt os: drop SUN-DES-1 authentication 2026-01-25 10:39:53 -08:00
README.md Fix spelling/wording issues 2020-07-05 13:07:33 -07:00
xorg-server.m4 xorg-server.m4: just all cflags instead of just sdkdir 2018-09-20 20:12:24 +01:00
xorg-server.pc.in pkgconfig files: Add URL 2026-01-25 10:40:01 -08:00
xserver.ent.in doc: relocate xserver.ent in the package root directory 2011-05-14 11:22:26 -07:00

README.md

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 primary 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:

https://www.freedesktop.org/wiki/CodeOfConduct