Commit graph

18540 commits

Author SHA1 Message Date
Enrico Weigelt, metux IT consult
e59cbdbdc4 Fix missing include of sys/stat.h
Instead of relying on very indirect includes, it's more more clean when
everybody explicitly includes what he really needs.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1417>
(cherry picked from commit 5057c716eb)
2026-01-19 12:48:30 -08:00
Enrico Weigelt, metux IT consult
53b60764f4 xfree86: os-support: drop ununsed POSIX_TTY
Found no evidence that this define is practically used anywhere, aymore.
Web research just showed up a single ancient .c file (looks like an
Wacom driver) from 1998. Xserver's git history doesn't tell when it
actually had been introduced.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1408>
(cherry picked from commit 97e26532d5)
2026-01-19 12:48:30 -08:00
Enrico Weigelt, metux IT consult
378651126a xfree86: drop unused xf86EnableAGP()
This function doesn't seem to be used anymore, neither inside the xserver,
nor by any drivers - so it can be dropped.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1404>
(cherry picked from commit a1c1f8b9d8)
2026-01-19 12:48:30 -08:00
Enrico Weigelt, metux IT consult
e405ba7a34 xfree86: drop unused xf86SetReallySlowBcopy()
This had been introduced almost two decades ago, by Dave Airlie (*1) along
with some major IO speed improvement, just in case some driver still needed
the old behaviour - in that case it would call xf86SetReallySlowBcopy(),
so xf86SlowBcopy() would fall back to the old approach emitting an extra
outb() on debug port, in order to slow things down more.

Now aeons have passed and there doesn't seem to be any actual user for this,
so it's time to drop that ancient relic.

*1) commit e717eb82dc

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1402>
(cherry picked from commit ba870af892)
2026-01-19 12:48:30 -08:00
Enrico Weigelt, metux IT consult
e6ca239aa7 xfree86: linux: int10: drop dead code
The code pieces inside `ifdef DoSubModule` aren't used anymore since very
long time. There's no evidence of this symbol ever been set in the whole
git history, so it must be an really ancient relic, that nobody used for
decades.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1400>
(cherry picked from commit e37bcac1dc)
2026-01-19 12:48:30 -08:00
Enrico Weigelt, metux IT consult
ba5996ef3b os: unexport ListenToAllClients()
It's just called by DIX, not by any drivers/modules, so no need to export it.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1387>
(cherry picked from commit a0b69624f7)
2026-01-19 12:48:30 -08:00
Enrico Weigelt, metux IT consult
a94f1f04d9 os: unexport OnlyListenToOneClient()
Not used by any drivers, so no need to export it.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1385>
(cherry picked from commit d18ef33099)
2026-01-19 12:48:30 -08:00
Enrico Weigelt, metux IT consult
ba89e22e7e os: unexport MakeClientGrabPervious() and MakeClientGrabImpervious()
Not used by any drivers, so no need to export them.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1384>
(cherry picked from commit 4c1795701c)
2026-01-19 12:48:30 -08:00
Enrico Weigelt, metux IT consult
e3610a9f5c os: fix missing include of misc.h in busfault.h
busfault.h is using FALSE, but didn't include misc.h, so it really
depends on include order whether it works.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1381>
(cherry picked from commit 3aa62ca6f0)
2026-01-19 12:48:30 -08:00
Enrico Weigelt, metux IT consult
83936985d9 rename remaining RT_* defines to X11_RESTYPE_*
Since we already had to rename some of them, in order to fix name clashes
on win32, it's now time to rename all the remaining ones.

The old ones are still present as define's to the new ones, just for
backwards compatibility.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1355>
(cherry picked from commit 85d4bd0dba)
2026-01-19 12:48:30 -08:00
Enrico Weigelt, metux IT consult
0f00dba883 dix: workaround for win32 name clash on CreateWindow()
The problem is, ming32 headers unconditionally define CreateWindow() to
alias CreateWindowA() in winuser.h, which is included by windows.h, which
is included by *a lot* common headers. So it highly depends on the exact
include order, whether it works. (also weird things could happen, e.g.
the Xserver's CreateWindow() ending up renamed to CreateWindowA(), ...)

Until we've found a really clean solution to this problem (which might
involve fixing mingw32 first), just add a little workaround by undef'ing
CreateWindow symbol whereever necessary.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1355>
(cherry picked from commit 1ca48d0a48)
2026-01-19 12:48:30 -08:00
Enrico Weigelt, metux IT consult
ca361681f8 prevent name clash on Windows w/ RT_* defines
Windows' native headers using some our RT_* define's names for other things.
Since the naming isn't very nice anyways, introducing some new ones
(X11_RESTYPE_NONE, X11_RESTYPE_FONT, X11_RESTYPE_CURSOR) and define the old
ones as an alias to them, in case some out-of-tree code still uses them.

With thins change, we don't need to be so extremely careful about include
ordering and have explicit #undef's in order to prevent name clashes on
Win32 targets.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1355>
(cherry picked from commit 232cad9ec3)
2026-01-19 12:48:30 -08:00
Enrico Weigelt, metux IT consult
8d516ced55 dix: move closestr.h into dix directory
It's only used by dix internally (actually just dixfonts.c - since at
least 25 years now), thus no need to keep it in global include directory.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1388>
(cherry picked from commit f789dca4e9)
2026-01-19 12:48:30 -08:00
Enrico Weigelt, metux IT consult
e50bf99ec4 os: unexport OsVendorVErrorFProc pointer
This pointer allows a DDX to install it's own error print handler. It's really
only intended for DDXes, thus no need to have it exported to modules.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1369>
(cherry picked from commit 76d01e9bf6)
2026-01-19 12:48:30 -08:00
Enrico Weigelt, metux IT consult
48490209d2 os: unexport OsLookupColor()
It's an internal function, only used by DIX, not by drivers and shouldn't
have been exported in the first place.

Fixes: 49f77fff14
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1373>
(cherry picked from commit 6cb599f59c)
2026-01-19 12:47:57 -08:00
Enrico Weigelt, metux IT consult
2321632c44 os: unexport xthread_sigmask
This function isn't used by drivers and there's currently no need to do so,
thus keep it out of the public module API.

Fixes: 30ac756798
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1368>
(cherry picked from commit 3b7a63e6ae)
2026-01-19 12:32:26 -08:00
Enrico Weigelt, metux IT consult
e77f414b78 include: gc.h: drop unused defines
These seem to be unused for *long* time - couldn't even trace it back in
git history. Also not used by any known driver. Time to get rid of them.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1364>
(cherry picked from commit 62d3114ab9)
2026-01-19 12:32:26 -08:00
Enrico Weigelt, metux IT consult
e702149e99 include: move busfault.h out of public include dir
this header is isn't public, so it's more appropriate, where the actual
code is, which is the os/ directory.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1337>
(cherry picked from commit dae76bbaaf)
2026-01-19 12:32:26 -08:00
Enrico Weigelt, metux IT consult
e7f8737159 xfree86: x86emu: fix missing Xfuncproto.h include in debug.h
The header uses macros from Xfuncproto.h - right now it just works by pure
accident since consumers of this header indirectly include Xfuncproto.h
by totally different roads. This is a fragile programming style that deserved
to be cleand up.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1331>
(cherry picked from commit 84407af615)
2026-01-19 12:32:26 -08:00
Enrico Weigelt, metux IT consult
562b223636 xfree86: x86emu: drop unnecessary extern C from debug.h
Since we're not using C++ code, thus no trouble w/ name mangling, we don't
need explicit extern "C" { ... } sections in the code. (If we would, we
have to have it in many other places, too)

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1331>
(cherry picked from commit 045c9185f8)
2026-01-19 12:32:26 -08:00
Enrico Weigelt, metux IT consult
ee172244fa Xnest: print event ID on warning about unhandled upstream event
When getting an unhandled event from upstream Xserver, a warning
is printed, but it doesn't tell which one yet. Just printing it's
ID should be good enough for now - it's already a good help
for debugging.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1398>
(cherry picked from commit 8516bbe422)
2026-01-19 12:32:26 -08:00
Enrico Weigelt, metux IT consult
25e8fda389 Xnest: cleanup X.h includes
It's cleaner to include explicitly instead of relying on indirect includes,
thus adding a few more on X.h.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1394>
(cherry picked from commit 2cc5c57238)
2026-01-19 12:32:26 -08:00
Enrico Weigelt, metux IT consult
02e2c69532 Xnest: canonicalize includes: <X11/Xdefs.h>
For cleaner code, make sure every source needing something from Xdefs.h
does explicitly include it (not relying on indirect including)

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1394>
(cherry picked from commit 737c316a99)
2026-01-19 12:32:26 -08:00
Enrico Weigelt, metux IT consult
fdda766856 Xnest: ignore NoExpose event
Sometimes getting NoExpose event from upstream xserver, where
we've got nothing actually to do.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1399>
(cherry picked from commit b15f0204b2)
2026-01-19 12:32:26 -08:00
Enrico Weigelt, metux IT consult
9d9461a14d xnest: Display: fix xallocarray() compiler warning
Compiler warning:

[7/29] Compiling C object hw/xnest/Xnest.p/Display.c.o
In file included from ../include/misc.h:119,
                 from ../include/screenint.h:50,
                 from ../hw/xnest/Display.c:24:
../hw/xnest/Display.c: In function ‘xnestOpenDisplay’:
../include/os.h:81:32: warning: argument 2 range [2147483648, 4294967295] exceeds maximum object size 2147483647 [-Walloc-size-larger-than=]
   81 | #define xallocarray(num, size) reallocarray(NULL, (num), (size))
      |                                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../hw/xnest/Display.c:124:29: note: in expansion of macro ‘xallocarray’
  124 |     xnestDefaultColormaps = xallocarray(xnestNumDefaultColormaps,
      |                             ^~~~~~~~~~~
In file included from ../include/os.h:54:
/usr/include/stdlib.h:582:14: note: in a call to allocation function ‘reallocarray’ declared here
  582 | extern void *reallocarray (void *__ptr, size_t __nmemb, size_t __size)
      |              ^~~~~~~~~~~~

Since we really don't need more than 2^16 colormaps, using uint16_t here
to silence this warning.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1392>
(cherry picked from commit 57254ca23c)
2026-01-19 12:32:26 -08:00
Enrico Weigelt, metux IT consult
178ddbca96 os: connection: drop obsolete define Pid_t
Clean up a yet some more stale leftovers.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1260>
(cherry picked from commit eac10cf1fa)
2026-01-19 12:32:26 -08:00
Enrico Weigelt, metux IT consult
206945735f m4: drop autoconf leftovers
these m4 macros had been used for autotools-based build system. But since this
had been replaced by meson, these files are obsolete now.

Fixes: c97397dc47
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1260>
(cherry picked from commit 887fc7121b)
2026-01-19 12:32:26 -08:00
Enrico Weigelt, metux IT consult
0b3d92043c present: present_scmd: drop obsolete include of <time.h>
Not used anymore, was forgotten to be removed.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1260>
(cherry picked from commit 95706a5fec)
2026-01-19 12:32:26 -08:00
Tom Yan
5d3345f6e6 mi: decouple miCreateScreenResources from pScreen->{width,height}
This allows pScreen->{width,height} to be changed to smaller values
after miScreenInit() is called but before pScreen is further set up
/ used by dix, so that the screen size can be fit to the mode of
choice even when it does not have the maximum width and/or height
among its peers.

XGetImage() for one will fail once the screen is change back to a
bigger size with xrandr, which prevents e.g. x11vnc to work on the
server.

Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/854>
(cherry picked from commit 7c5b5642b2)
2026-01-19 12:32:26 -08:00
Tom Yan
c84beb1a48 xnest/mi: remove redundant call of miScreenDevPrivateInit()
miScreenDevPrivateInit() is also made static in this commit.

Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/854>
(cherry picked from commit aa3f5023e3)
2026-01-19 12:32:26 -08:00
Enrico Weigelt, metux IT consult
1e2f6f5c2d xfree86: vgahw: drop obsolete _NEED_SYSI86
This doesn't seem to be needed anymore, probably a left over from migration
to libpciaccess. So it can be removed now.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1415>
(cherry picked from commit 786f7ceb61)
2026-01-19 12:32:25 -08:00
Enrico Weigelt, metux IT consult
4b82a90365 xfree86: os-support: move _NEED_SYSI86 guarded block to sun_vid.c
The sun_vid.c driver seems to be the only actual consumer left, so it
can be dropped from public headers and moved to sun_vid.c instead.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1414>
(cherry picked from commit dee16edd2e)
2026-01-19 12:32:25 -08:00
Enrico Weigelt, metux IT consult
44e47b9a41 xfree86: os-support: drop Solaris pre-7 remains
Since meson transition, we can't build on Solaris older than v7
(which came out 1998), so no need for extra quirks.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1414>
(cherry picked from commit 1073ca2b8a)
2026-01-19 12:32:25 -08:00
Enrico Weigelt, metux IT consult
8d3aece865 xfree86: os-support: clean out remains of SVR3/sysv support
SVR3/sysv support had been removed 13 years ago, but there still was
some fallout left. The symbol HAS_SVR3_MMAPDRV never had been set by
autoconf, let alone meson, so this piece of code is really dead.

Fixes: 6ce1908ba4
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1414>
(cherry picked from commit bfcc7726a8)
2026-01-19 12:32:25 -08:00
Olivier Fourdan
9813206533 xwayland: Walk the regions' boxes
In xwl_source_validate(), the actual box wasn't updated, so we would
possibly copy several times the same first box.

Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-by: Michel Dänzer <mdaenzer@redhat.com>
Fixes: aa05f38f3 - xwayland: Add SourceValidate hook
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1485>
(cherry picked from commit 385226bdaf)
2026-01-19 12:32:25 -08:00
Michel Dänzer
6f5c444831 dri3: Free formats in cache_formats_and_modifiers
Fixes leak:

==15672== 60 bytes in 1 blocks are definitely lost in loss record 3,803 of 8,127
==15672==    at 0x4840718: malloc (vg_replace_malloc.c:392)
==15672==    by 0x2F2698: XNFreallocarray (alloc.c:55)
==15672==    by 0x1ADAA9: xwl_dmabuf_get_formats_for_device (xwayland-dmabuf.c:207)
==15672==    by 0x1ADAA9: xwl_glamor_get_formats (xwayland-dmabuf.c:248)
==15672==    by 0x303D86: cache_formats_and_modifiers (dri3_screen.c:176)
==15672==    by 0x303D86: dri3_get_supported_modifiers (dri3_screen.c:229)
==15672==    by 0x30331A: proc_dri3_get_supported_modifiers (dri3_request.c:389)
==15672==    by 0x217B6B: Dispatch (dispatch.c:550)
==15672==    by 0x21B9A0: dix_main (main.c:276)
==15672==    by 0x51086C9: (below main) (libc_start_call_main.h:58)

Fixes: a42992a4cc ("dri3: rework format/modifier caching")
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1484>
(cherry picked from commit 3b6b88c184)
2026-01-19 12:32:25 -08:00
Michel Dänzer
951b37e04c xwayland: Use drmDevicesEqual in xwl_dmabuf_feedback_tranche_done
xwl_dmabuf_feedback_tranche_target_device always allocates a new
drmDevice for xwl_feedback->tmp_tranche.drm_dev, so the pointers are
never equal here.

Fixes: 6f0b9deed6 ("xwayland: use drmDevice to compare DRM devices")

v2:
* Flip order of checks, so drmDevicesEqual is called only if the
  supports_scanout flags match.

Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1484>
(cherry picked from commit 4dc7e99840)
2026-01-19 12:32:25 -08:00
Michel Dänzer
c5f1568286 xwayland: Call drmFreeDevice for dma-buf default feedback
Fixes leaks:

==13712== 144 bytes in 1 blocks are definitely lost in loss record 4,827 of 7,462
==13712==    at 0x48459F3: calloc (vg_replace_malloc.c:1340)
==13712==    by 0x49BE94D: drmDeviceAlloc (xf86drm.c:4072)
==13712==    by 0x49BFAC9: drmProcessPciDevice (xf86drm.c:4104)
==13712==    by 0x49BFAC9: process_device (xf86drm.c:4508)
==13712==    by 0x49C35FB: drmGetDeviceFromDevId (xf86drm.c:4670)
==13712==    by 0x1AD370: xwl_dmabuf_feedback_main_device (xwayland-dmabuf.c:477)
==13712==    by 0x53C03FD: ffi_call_unix64 (unix64.S:104)
==13712==    by 0x53BF70C: ffi_call_int (ffi64.c:673)
==13712==    by 0x53BFEE2: ffi_call (ffi64.c:710)
==13712==    by 0x49AC920: wl_closure_invoke (connection.c:1025)
==13712==    by 0x49A8C08: dispatch_event.isra.0 (wayland-client.c:1631)
==13712==    by 0x49AA5AB: dispatch_queue (wayland-client.c:1777)
==13712==    by 0x49AA5AB: wl_display_dispatch_queue_pending (wayland-client.c:2019)
==13712==    by 0x49AAB5E: wl_display_roundtrip_queue (wayland-client.c:1403)

==13712== 576 bytes in 4 blocks are definitely lost in loss record 6,289 of 7,462
==13712==    at 0x48459F3: calloc (vg_replace_malloc.c:1340)
==13712==    by 0x49BE94D: drmDeviceAlloc (xf86drm.c:4072)
==13712==    by 0x49BFAC9: drmProcessPciDevice (xf86drm.c:4104)
==13712==    by 0x49BFAC9: process_device (xf86drm.c:4508)
==13712==    by 0x49C35FB: drmGetDeviceFromDevId (xf86drm.c:4670)
==13712==    by 0x1AD583: xwl_dmabuf_feedback_main_device (xwayland-dmabuf.c:477)
==13712==    by 0x1AD583: xwl_window_dmabuf_feedback_main_device (xwayland-dmabuf.c:691)
==13712==    by 0x53C03FD: ffi_call_unix64 (unix64.S:104)
==13712==    by 0x53BF70C: ffi_call_int (ffi64.c:673)
==13712==    by 0x53BFEE2: ffi_call (ffi64.c:710)
==13712==    by 0x49AC920: wl_closure_invoke (connection.c:1025)
==13712==    by 0x49A8C08: dispatch_event.isra.0 (wayland-client.c:1631)
==13712==    by 0x49AA5AB: dispatch_queue (wayland-client.c:1777)
==13712==    by 0x49AA5AB: wl_display_dispatch_queue_pending (wayland-client.c:2019)
==13712==    by 0x1A1842: xwl_read_events (xwayland-screen.c:566)
==13712==    by 0x1A1842: xwl_read_events (xwayland-screen.c:553)

Fixes: 6f0b9deed6 ("xwayland: use drmDevice to compare DRM devices")
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1484>
(cherry picked from commit 82d3b8ff05)
2026-01-19 12:32:25 -08:00
Balló György
6aebd0627d glamor: Fallback to software rendering on GLSL link failure
Instead of thowing fatal error on GLSL link failure, fall back to software
rendering. This allows using Glamor on systems with limited hardware resources
(such as i915).

Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1173>
(cherry picked from commit 007e98b186)
2026-01-19 12:32:25 -08:00
Olivier Fourdan
5a30951a95 Revert "xwayland/glamor: Avoid implicit redirection with depth 32 parent windows"
There are a number of regressions and hard to reproduce issues that find
their roots in this change, so revert it until those can be ironed out
some more.

This reverts commit 4bb1f976d5.

Closes: https://gitlab.freedesktop.org/xorg/xserver/-/issues/1655
Closes: https://gitlab.freedesktop.org/xorg/xserver/-/issues/1656
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1457>
(cherry picked from commit a65bb8480a)
2026-01-19 12:32:25 -08:00
Jan Beich
169488d2ea xwayland: avoid Linux-only headers on non-Linux
hw/xwayland/xwayland-glamor-gbm.c:38:10: fatal error: 'linux/dma-buf.h' file not found
   38 | #include <linux/dma-buf.h>
      |          ^~~~~~~~~~~~~~~~~

Fixes: 3df236a3d5 ("xwayland: add functions to import and export dma-buf implicit fences")
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1481>
(cherry picked from commit f0748b05dc)
2026-01-19 12:32:25 -08:00
Michel Dänzer
d0cdffebe6 xwayland/present: Redirect surface window as needed for page flips
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>
(cherry picked from commit c7d56b0e29)
2026-01-19 12:32:25 -08:00
Michel Dänzer
fba908ab35 xwayland/present: Check window & source pixmap depth match last
Preparation for next commit, no functional change intended.

Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1300>
(cherry picked from commit 4495c696b5)
2026-01-19 12:32:25 -08:00
Michel Dänzer
3236c57b9e xwayland: Add SourceValidate hook
A later commit will use it to ensure the toplevel window pixmap has
valid contents.

It's hooked up only while any xwl_window->surface_window_damage points
to a non-empty region. So far it's always NULL, so no functional change
intended.

v2:
* Fix trailing whitespace. (Olivier Fourdan)
v3:
* Use toplevel local variable more in xwl_window_update_surface_window.

Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1300>
(cherry picked from commit aa05f38f3d)
2026-01-19 12:32:25 -08:00
Michel Dänzer
6f3de9a3e4 xwayland/present: Add xwl_present_maybe_(un)redirect_window
A later commit will use these to (un)redirect the surface window on
demand.

Not used yet, so no functional change intended.

v2:
* Use "surface_window_damage" instead of "surf_win_damage".
  (Olivier Fourdan)
* Slightly simplify logic in xwl_unrealize_window.
v3:
* Add comment in xwl_present_maybe_unredirect_window explaining why we
  use a timer. (Olivier Fourdan)
v4:
* Rename unredir_timer field to unredirect_timer.

Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1300>
(cherry picked from commit fca63f8fb8)
2026-01-19 12:32:25 -08:00
Michel Dänzer
73be245796 xwayland: Use ConfigNotify screen hook instead of ResizeWindow
Preparation for later commits, no functional change intended.

Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1300>
(cherry picked from commit fa7b1c20c4)
2026-01-19 12:32:25 -08:00
Michel Dänzer
f86a1e565f xwayland: Add xwl_window::surface_window
It may track a non-toplevel window which fully covers the area of the
window pixmap / Wayland surface. It is now used instead of
xwl_window::toplevel for updating the Wayland surface contents.

The surface_window can now hit the Present page flip path while it's
automatically redirected.

v2:
* Use "surface_window" instead of "surf_win". (Olivier Fourdan)
* Add comment describing surface_window, and describe what
  surface_window/toplevel are useful for respectively. (Olivier Fourdan)
* Use surface_window in xwl_realize_window.
v3:
* Backtrack up to the closest opaque ancestor in
  xwl_window_update_surface_window. (Olivier Fourdan)
v4:
* Clean up logic for determining the surface window in
  xwl_window_update_surface_window, and document it better.
* Handle window_get_damage(xwl_window->surface_window) returning NULL
  in xwl_window_update_surface_window.
* Call xwl_window_update_surface_window after xwl_window_buffers_init
  in ensure_surface_for_window, since the former may call
  xwl_window_buffers_dispose.
* Rename surf/win_pix to surface/window_pixmap in
  xwl_window_update_surface_window.

Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1300>
(cherry picked from commit 3a0fc2684a)
2026-01-19 12:32:25 -08:00
Michel Dänzer
1762048b4b xwayland: Pass xwl_window to xwl_glamor_dri3_syncobj_passthrough
Preparation for later changes, no functional change intended.

Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1300>
(cherry picked from commit db248682b3)
2026-01-19 12:32:25 -08:00
Michel Dänzer
68e9568946 xwayland: Use xwl_window for damage closure
Preparation for later commits, no functional change intended.

Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1300>
(cherry picked from commit d3448f7aad)
2026-01-19 12:32:25 -08:00
Michel Dänzer
a513c10dd5 xwayland: Call register_damage depending on ensure_surface_for_window
Preparation for next commit.

This might change behaviour for non-InputOutput top-level windows.
ensure_surface_for_window getting called and returning non-NULL for
those would seem like a pre-existing bug though.

Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1300>
(cherry picked from commit 07f6032627)
2026-01-19 12:32:25 -08:00