Commit graph

18687 commits

Author SHA1 Message Date
Enrico Weigelt, metux IT consult
8869bd31ae treewide: mark pGC->ops->CopyArea() calls not using result as void
We alread have several of these calls, that aren't interested in result value,
explicitly casting to void. Fixing this up for the remaining ones.

This is helpful for the human reader as well as quality analysis tools.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1648>
(cherry picked from commit f26f17c66a)
2026-01-25 10:39:56 -08:00
Enrico Weigelt, metux IT consult
304708c13c ci: fix w64 cross build pkg-config path
pkg-config path is wrong: it's using /usr/share/pkgconfig from the *host*
instead of sysroot, which is leading to wrong pathes.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1655>
(cherry picked from commit 9929f64ec8)
2026-01-25 10:39:56 -08:00
Olivier Fourdan
1b51b3270a xwayland: Report correct mode size when rootful
The vidmode extension emulation in Xwayland reports the modeline based
on the current mode.

To do so, it searches for the mode using `xwl_output_find_mode(-1, -1)`
which is supposed to return the current mode, whatever that mode is.

With XRandR emulation, in rootless mode, the default value is the mode
at index 0. That assumption, however is not true when running rootful.

That means that the vidmode extension will always return the highest
mode available, which is 5120x2880, with Xwayland running rootful:

  $ xwayland-run -geometry 1024x768 -- xvidtune -show
  "5120x2880"   1276.50   5120 5560 6128 7136   2880 2883 2888 2982 -hsync +vsync

Luckily, when Xwayland is running rootful, we have the current mode size
conveniently stored in dedicated fields of the xwayland output struct,
so we can use that to search for the right mode being used and report
that through the vidmode extension:

  $ xwayland-run -geometry 1024x768 -- xvidtune -show
  "1024x768"     63.50   1024 1064 1176 1328    768  771  775  798 -hsync +vsync

That fixes legacy games using the vidmode extension and rendering at the
wrong size when running within Xwayland rootful.

Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1641>
(cherry picked from commit e2e5842444)
2026-01-25 10:39:56 -08:00
Ian Douglas Scott
b1ea02b291 xwayland: Release keys on keyboard enter event if leave wasn't received
The code here assumed a `leave` event always occurs between two `enter`
events. On Sway (and presumably other compositors) this happens even if
the client has destroyed the `wl_surface`, but the client gets a null
`surface` here. (Which presumably on on the wire is the id of the
destroyed surface.)

This seems like a bad thing to rely on, and is easy to avoid. But if
this is correct to assume, the Wayland protocol should be explicit about
this.

Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1527>
(cherry picked from commit 386b54fbe9)
2026-01-25 10:39:56 -08:00
Olivier Fourdan
2b4d7f6dd5 xwayland: Do not include sys/eventfd.h without DRI3
Now that we won't enable DRI3 if <sys/eventfd.h> is not available, there
is not point in trying to include that header without DRI3.

That allows to build Xwayland with GLAMOR enabled (without DRI3) on
platforms which do not support eventfd.

Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1523>
(cherry picked from commit 23c295ea8b)
2026-01-25 10:39:56 -08:00
Olivier Fourdan
5c4bc3e462 xwayland: Do not enable DRI3 without eventfd
DRI3 version 1.4 which supports explicit buffers synchronization relies
on the eventfd interface.

As result, building would fail with DRI3 enabled on platforms without
the eventfd interface.

Check for the availability of the sys/eventfd.h header and disable DRI3
support if missing.

Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1523>
(cherry picked from commit 96bdc156a1)
2026-01-25 10:39:56 -08:00
Olivier Fourdan
d2f7251668 xwayland: Fix build without DRI3 enabled
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Closes: https://gitlab.freedesktop.org/xorg/xserver/-/issues/1668
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1523>
(cherry picked from commit a58352b985)
2026-01-25 10:39:56 -08:00
Nicolas Dufresne
a6e6f8d239 glamor: xv: Rewrite UYVY shader to match NV12/I420 CSC
This rewrites the shader so that we use the same (more flexible) CSC as
we have for I420 and NV12. This also fixes the reverse of odd/even which
caused chroma shift.

Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1633>
(cherry picked from commit 39c8a6f367)
2026-01-25 10:39:56 -08:00
Konstantin
10e462ce6e glamor: xv: fix UYVY alignment
UYVY videos should be aligned by 2 to avoid breakups in the shader

Fixes: 832b392f7 - glamor: xv: enable UYVY acceleration
Suggested-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Konstantin <ria.freelander@gmail.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1633>
(cherry picked from commit eb26f32368)
2026-01-25 10:39:56 -08:00
Konstantin
00448b1e62 glamor: check BPP by render_format.
Check actual BPP by render_format in upload_boxes, not by drawable BPP.

It is required when we used different BPP formats for storing and
rendering (for example, in the case of UYVY).

The problem of UYVY size lies inside method of glamor downloading boxes.

When we set GLAMOR_CREATE_FORMAT_CBCR, it actually uses 16-bit GL and
Pixman formats, but before this change in glamor_download_boxes, that
function deduces GL and Pixman formats from BPP, which is wrong in this
case (will be deduced to 32).

When GL and Pixman format BPP is identical to drawable BPP, this change
does nothing, but when it is different - it will prioritize Pixman
format, not the format deduced from BPP.

Closes: https://gitlab.freedesktop.org/xorg/xserver/-/issues/1730
Signed-off-by: Konstantin Pugin <ria.freelander@gmail.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1633>
(cherry picked from commit 75f56b7923)
2026-01-25 10:39:55 -08:00
Olivier Fourdan
a5c8be657f xwayland/ei: Dequeue events when all caps are available
Currently, we would start dequeuing events as soon as a device is
resumed, regardless of its capabilities.

If the capabilities are not available, we would just fallback to the
regular XTEST code path and not use input emulation.

As a result, it is very likely that we shall lose the first events until
the compositor resumes first a device with the requested capabilities.

To avoid that issue, start emulating only once we have the requested
capabilities, if they match the seat capabilities.

Closes: https://gitlab.freedesktop.org/xorg/xserver/-/issues/1732
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1631>
(cherry picked from commit 0525b9a5b9)
2026-01-25 10:39:55 -08:00
Olivier Fourdan
ca04c7ea67 xwayland/ei: Move code to helper function
This is a small code refactoring to help with clarity, simply move the
code from the switch case for device resume to a dedicated function.

No functional change.

Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1631>
(cherry picked from commit 68ec297ee9)
2026-01-25 10:39:55 -08:00
Olivier Fourdan
079ddb5277 glamor: Fix possible double-free
If glamor_link_glsl_prog() fails, we may jump to the failed code path
which frees the variable vs_prog_string and fs_prog_string.

But those variables were already freed just before, so in that case we
end up freeing the memory twice.

Simply move the free at the end of the success code path so we are sure
to free the values only once, either in the successful of failed code
paths.

Fixes: 2906ee5e4 - glamor: Fix leak in glamor_build_program()
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1629>
(cherry picked from commit 34ea020344)
2026-01-25 10:39:55 -08:00
Alan Coopersmith
475db0f299 compiler.h: drop translation of Sun compiler platform defines to gcc
Missed when the rest of Sun compiler support was removed by
commit 6dafe3dbe6.

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1628>
(cherry picked from commit bbc758d47b)
2026-01-25 10:39:55 -08:00
Alan Coopersmith
ea09954c71 meson: make AF_INET6 check work with stricter compiler flags
Previously it failed with:
_build/meson-private/tmpr7qpcbo1/testfile.c: In function 'main':
_build/meson-private/tmpr7qpcbo1/testfile.c:7:5:
 error: old-style function definition [-Werror=old-style-definition]
    7 | int main() { int foo = AF_INET6; }
      |     ^~~~
_build/meson-private/tmpr7qpcbo1/testfile.c:7:18:
 warning: unused variable 'foo' [-Wunused-variable]
    7 | int main() { int foo = AF_INET6; }
      |                  ^~~

Fixes: bc55a98d6 ("meson: explicitly check whether AF_INET6 is available")
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1627>
(cherry picked from commit f3b43adf3a)
2026-01-25 10:39:55 -08:00
Enrico Weigelt, metux IT consult
6d8eb9aaba xv: move XvVideoNotifyRec into xvmain.c
This struct is only used in xvmain.c, so no need to keep it exported.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1512>
(cherry picked from commit 354f42b25c)
2026-01-25 10:39:55 -08:00
Enrico Weigelt, metux IT consult
f73f93f3b9 xv: move SCREEN_(PROLOGUE|EPILOGUE) into xvmain.c
These macros are only used in xvmain.c, so no need to keep
them exported.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1512>
(cherry picked from commit 4d0b5833da)
2026-01-25 10:39:55 -08:00
Enrico Weigelt, metux IT consult
68ba498a74 xv: drop unused macro _XvBadEncoding
Couldn't find a trace where it actually had been used, so there doesn't
seem to be any reason while still keeping it around.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1512>
(cherry picked from commit d7e481f200)
2026-01-25 10:39:55 -08:00
Enrico Weigelt, metux IT consult
08fed90600 xv: drop unused define GLOBAL
This symbol isn't used anywhere, for at least 20 years now,
so no need to define it.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1512>
(cherry picked from commit 6b445819dd)
2026-01-25 10:39:55 -08:00
Enrico Weigelt, metux IT consult
c1eae1f117 treewide: replace xnfstrdup() calls by XNFstrdup()
This has been nothing but an alias for two decades now (somewhere in R6.6),
so there doesn't seem to be any practical need for this indirection.

The macro still needs to remain, as long as (external) drivers still using it.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1529>
(cherry picked from commit dec57e5796)
2026-01-25 10:39:55 -08:00
Enrico Weigelt, metux IT consult
afe3c7fc86 treewide: replace xnfcalloc() calls by XNFcallocarray()
This has been nothing but an alias for two decades now (somewhere in R6.6),
so there doesn't seem to be any practical need for this indirection.

The macro still needs to remain, as long as (external) drivers still using it.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1529>
(cherry picked from commit f446235b71)
2026-01-25 10:39:55 -08:00
Enrico Weigelt, metux IT consult
144f197282 treewide: replace strdup() calls to Xstrdup()
This has been nothing but an alias for two decades now (somewhere in R6.6),
so there doesn't seem to be any practical need for this indirection.

The macro still needs to remain, as long as (external) drivers still using it.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1529>
(cherry picked from commit 9ec31d1a88)
2026-01-25 10:39:55 -08:00
Enrico Weigelt, metux IT consult
173b5541d0 treewide: replace xnfrealloc() calls to XNFrealloc()
This has been nothing but an alias for two decades now (somewhere in R6.6),
so there doesn't seem to be any practical need for this indirection.

The macro still needs to remain, as long as (external) drivers still using it.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1529>
(cherry picked from commit a1fd7e7ba5)
2026-01-25 10:39:55 -08:00
Enrico Weigelt, metux IT consult
b813a0be0d treewide: replace xnfreallocarray macro call by XNFreallocarray()
The xnfreallocarray was added along (and just as an alias to) XNFreallocarray
back a decade ago. It's just used in a few places and it's only saves us from
passing the first parameter (NULL), so the actual benefit isn't really huge.

No (known) driver is using it, so the macro can be dropped entirely.

Fixes: ae75d50395
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1529>
(cherry picked from commit 61233adbca)
2026-01-25 10:39:55 -08:00
Enrico Weigelt, metux IT consult
a24dec213f treewide: replace xnfallocarray() calls by XNFreallocarray
The xnfallocarray was added along (and just as an alias to) XNFreallocarray
back a decade ago.

No (known) driver is using it, so the macro can be dropped entirely.

Fixes: ae75d50395
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1529>
(cherry picked from commit 6b3c916030)
2026-01-25 10:39:55 -08:00
Enrico Weigelt, metux IT consult
d9f8206afb treewide: replace xnfalloc() calls to XNFalloc()
This has been nothing but an alias for two decades now (somewhere in R6.6),
so there doesn't seem to be any practical need for this indirection.

The macro still needs to remain, as long as (external) drivers still using it.

Fixes: ded6147bfb
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1529>
(cherry picked from commit c55ddd072b)
2026-01-25 10:39:55 -08:00
Enrico Weigelt, metux IT consult
b91e08a9bc meson.build: disable udev on platforms not having it
Several more platforms lacking udev haven't been catched yet.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1577>
(cherry picked from commit ab701418b2)
2026-01-25 10:39:55 -08:00
Olivier Fourdan
beb8ffff8c xwayland/ei: Log the type name of unhandled events
Currently, we would log only the event type, use the libei API to also
log the name in plain text, so we can quickly identify the events we're
missing out.

Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1620>
(cherry picked from commit 1a42fe40d0)
2026-01-25 10:39:55 -08:00
Olivier Fourdan
816d4f0030 xwayland/ei: Handle EI_EVENT_KEYBOARD_MODIFIERS
Although we do not do anything with that event, handle it so we don't
end up in the "Unhandled event" territory.

Closes: https://gitlab.freedesktop.org/xorg/xserver/-/issues/1722
Fixes: a133334270 - xwayland: Add XTEST support using EIS
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1620>
(cherry picked from commit bfabd3bdab)
2026-01-25 10:39:55 -08:00
Enrico Weigelt, metux IT consult
6d7eaaf6e1 xkb: ProcXkbGetGeometry(): fix memleak
If XkbComputeGetGeometryReplySize() returns an error, the XkbGeometryRec won't
be freed, since we're bailing out too early and not calling XkbSendGeometry().

Having XkbSendGeometry() responsible for freeing that struct is unnecessarily
complicated anyways, so move that to ProcXkbGetGeometry() and do it also when
XkbComputeGetGeometryReplySize() failed.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1622>
(cherry picked from commit b2198df55a)
2026-01-25 10:39:55 -08:00
Olivier Fourdan
47c4e38e50 xwayland: Make sure output is suitable for fullscreen
Since commit d370f1e58, Xwayland can optionally be started rootful and
fullscreen.

To do so, it will setup a viewport to scale the root window to match the
size of the output.

However, if the rootful Xwayland window receives an xdg-surface configure
event before the output definition is complete, as with e.g. the labwc
Wayland compositor, we might end up trying to setup a viewport with a
destination size of 0x0 which is a protocol violation, and that kills
Xwayland.

To avoid that issue, only setup the viewport if the output size is
meaningful.

Also, please note that once the output definition is complete, i.e. when
the "done" event is eventually received, we shall recompute the size for
fullscreen again, hence achieving the desired fullscreen state.

Fixes: d370f1e58 - xwayland: add fullscreen mode for rootful
Closes: https://gitlab.freedesktop.org/xorg/xserver/-/issues/1717
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1621>
(cherry picked from commit 66f5e7e96a)
2026-01-25 10:39:55 -08:00
Enrico Weigelt, metux IT consult
409545421e ci: enable building security extension
Since we already had incident where a break in security extension went to
master unnoticed, it's better to enable it in CI build.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1617>
(cherry picked from commit aec722db36)
2026-01-25 10:39:55 -08:00
Enrico Weigelt, metux IT consult
d0de360279 Xext: fix missing include of <X11/Xmd.h>
Including <X11/extensions/securproto.h> depends on <X11/Xmd.h> has been
included before.

Bug: https://gitlab.freedesktop.org/xorg/xserver/-/issues/1719
Fixes: b30edf32 - fix missing includes of <X11/Xfuncproto.h>
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1617>
(cherry picked from commit f94e280896)
2026-01-25 10:39:55 -08:00
Enrico Weigelt, metux IT consult
8cde76988b fix missing includes of <X11/Xfuncproto.h>
Several places using _X_ATTRIBUTE_PRINTF macro from X11/Xfuncproto.h
but missing to include it, so it depends on other headers whether it's
included by mere accident, which quickly causes trouble if include order
changes. Cleaning that up by adding explicit include statements.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1580>
(cherry picked from commit b30edf326b)
2026-01-25 10:39:55 -08:00
Alan Coopersmith
1a4c3b3dac Move sizeof to second argument in calloc calls
Clears -Wcalloc-transposed-args warnings from gcc 14.1, such as:

../dix/main.c:165:42: warning: ‘calloc’ sizes specified with ‘sizeof’ in the
 earlier argument and not in the later argument [-Wcalloc-transposed-args]
  165 |             serverClient = calloc(sizeof(ClientRec), 1);
      |                                          ^~~~~~~~~
../dix/main.c:165:42: note: earlier argument should specify number of
 elements, later size of each element

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1606>
(cherry picked from commit 522f469fe9)
2026-01-25 10:39:55 -08:00
Enrico Weigelt, metux IT consult
73d2952763 dix: create empty selection objects as-needed in dixLookupSelection()
For now, new selection objects are only created in ProcSetSelectionOwner()
when dixLookupSelection() can't find the requested one (returns BadMatch).

When somebody's trying to listen on a not-yet existing selection, via
XFixesSelectSelectionInput() -- XFIXES:SelectSelectionInput message -- he's
also getting BadMatch. The spec isn't explicitly clear on the exact behaviour
in those specific situations: it doesn't tell anything about selection's
lifetimes (when are they actually *created* or *destroyed*), just about their
ownership.

But there are real-world clients not expecting an error here and crashing
with a BadMatch error.

Since the spec doesn't mandate any Selection lifetime, it's safe to assume,
they can be created as-needed (as other related code paths already do).
Doing so ensures such an error cannot happen anymore.

XACE consumers get properly notified by the new Selection object creation
(eg. SElinux is attaching it's private data to it). And all callers already
prepared to get a cleared Selection object, because that's always been a
perfectly normal situation - Selection objects never get removed again,
just cleared.

Fixes: 601fd0fd8 - xfixes/xace: fix pointer type mismatch on XFixesSelectSelectionInput()
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1574>
(cherry picked from commit 6a1d730006)
2026-01-25 10:39:55 -08:00
Alan Coopersmith
cc08f1f4f9 CI: Checkout driver tag into the directory we build from
It was previously checking out the default branch into the $DRIVER
subdirectory, and the requested tag into the current subdirectory,
but then proceeding to build the $DRIVER subdirectory.

Fixes: 89b7f4501 ("CI: add a driver build stage to check for header breakage")
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1607>
(cherry picked from commit 552250901f)
2026-01-25 10:39:55 -08:00
Olivier Fourdan
64a8365213 xwayland: Check for pointer in xwl_seat_leave_ptr()
Since commit 792758fa ("xwayland: Update lost focus on deactivation"),
in rootful mode, if we receive an "activated" state from xdg-shell
indicating that the surface is no longer active, we shall end up calling
xwl_seat_leave_ptr().

But xwl_seat_leave_ptr() does not actually check whether the seat has
pointer capabilities, and if not, get_pointer_device() will return NULL.

As a result, we would crash using a NULL pointer in GetMaster(). This
typically can happen when using Xwayland rootful on headless compositors
such as "cage" which do not advertise any capabilities for the seat.

To avoid the issue, simply check whether get_pointer_device() returns a
valid non-null device and bail out early otherwise.

Fixes: 792758fa - xwayland: Update lost focus on deactivation
Closes: https://gitlab.freedesktop.org/xorg/xserver/-/issues/1700
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1590>
(cherry picked from commit 7203626173)
2026-01-25 10:39:55 -08:00
Enrico Weigelt, metux IT consult
e6cdf08e9d Xext: saver: little bit formatting cleanup
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1586>
(cherry picked from commit fba3eefcc9)
2026-01-25 10:39:55 -08:00
Enrico Weigelt, metux IT consult
361172fdf1 Xext: saver: drop New() macro
We can directly use calloc() as all other places do.

If we wanna have an convenient macro for struct allocation, that would be the
job of a separate patch queue and should be done consequently, treewide.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1586>
(cherry picked from commit df38987656)
2026-01-25 10:39:55 -08:00
Olivier Fourdan
002d7d3754 xwayland: Force disposal of windows buffers for root on destroy
With explicit buffer synchronization in use, the window buffers use a
file descriptor for event notification to keep the buffer alive for
synchronization purpose.

When running rootful, the root window (which is visible) is destroyed
directly from the resource manager on server reset, and the window
buffer's eventfd will trigger after the window is destroyed, leading to
a use after free and a crash of the xserver.

To avoid the issue, check whether the window being destroyed is the root
window in rootless mode, and make sure to force the disposal of the
window buffers in that case.

Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Closes: https://gitlab.freedesktop.org/xorg/xserver/-/issues/1699
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1589>
(cherry picked from commit a5e863963e)
2026-01-25 10:39:55 -08:00
Olivier Fourdan
2ee2d689c2 xwayland/window-buffers: optionally force disposal
For cases (to come) where we would want to force the disposal of the
window buffers, add a parameter to force the disposal by calling
dispose() directly instead of maybe_dispose().

Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1589>
(cherry picked from commit fa04e15afc)
2026-01-25 10:39:55 -08:00
Olivier Fourdan
0ea8fec3b1 xwayland/window-buffers: Move buffer disposal to its own function
No functional change, this is just preparation work for the next commit.

v2: Reshuffle functions (Michel)

Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1589>
(cherry picked from commit 571cb13342)
2026-01-25 10:39:55 -08:00
Olivier Fourdan
8e75a308b5 xwayland: Make sure we do not leak xwl_window on destroy
Right now, we would dispose the xwl_window and all the data associated
with it on unrealize.

But not all window destruction go through the unrealize code path, for
example when the root window (running rootful) is destroyed from the
resource manager on server reset, we do not get to the unrealize window
step, but straight to destroy window.

As a result, we are leaking the xwl_window and all the data associated
with it, for example:

| 65,536 bytes in 1 blocks are possibly lost in loss record 12,462 of 12,488
|    at 0x484A0FC: calloc (vg_replace_malloc.c:1675)
|    by 0x48B661C: UnknownInlinedFun (pixman-bits-image.c:1273)
|    by 0x48B661C: _pixman_bits_image_init (pixman-bits-image.c:1296)
|    by 0x48B6754: create_bits_image_internal (pixman-bits-image.c:1349)
|    by 0x64180DE: UnknownInlinedFun (cairo-image-surface.c:380)
|    by 0x64180DE: UnknownInlinedFun (cairo-image-surface.c:366)
|    by 0x64180DE: cairo_image_surface_create (cairo-image-surface.c:432)
|    by 0x6346B44: UnknownInlinedFun (libdecor-gtk.c:467)
|    by 0x6346B44: libdecor_plugin_gtk_frame_new (libdecor-gtk.c:546)
|    by 0x4B7F297: libdecor_decorate (libdecor.c:559)
|    by 0x42C6F3: xwl_create_root_surface (xwayland-window.c:1266)
|    by 0x42CD97: ensure_surface_for_window (xwayland-window.c:1466)
|    by 0x42D0D1: xwl_realize_window (xwayland-window.c:1560)
|    by 0x50858F: compRealizeWindow (compwindow.c:279)
|    by 0x4FF2A2: MapWindow (window.c:2706)
|    by 0x4F9E7F: InitRootWindow (window.c:697)

To avoid that issue, check whether there is still an xwl_window
associated with the X11 window on destroy, and if that's the case,
dispose the xwl_window.

Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1589>
(cherry picked from commit 0e1a98f52f)
2026-01-25 10:39:55 -08:00
Olivier Fourdan
4ba3e1e3f2 xwayland: Move xwl_window disposal to its own function
No functional change intended, this is just preparation work for the
next commit.

Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1589>
(cherry picked from commit 74be7a7f36)
2026-01-25 10:39:55 -08:00
Olivier Fourdan
a0b69eee85 xwayland/window-buffers: Set syncpnts for all pixmaps
The wp_linux_drm_syncobj_v1 protocol states that :

| If at surface commit time there is a pending buffer attached but no
| pending release timeline point set, the no_release_point protocol
| error is raised.

So we need to set a release timeline point in any case from the swap
pixmap routine, even for the early out code paths.

Failing to do so may cause a Wayland protocol error that is fatal to the
Wayland client, in this case Xwayland:

| wp_linux_drm_syncobj_surface_v1: error 4: No Acquire point provided
| (EE) failed to dispatch Wayland events: Protocol error

Closes: https://gitlab.freedesktop.org/xorg/xserver/-/issues/1688
Fixes: 87bf2cafcc - xwayland: add support for wp_linux_drm_syncobj_v1
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1571>
(cherry picked from commit bc9bf56360)
2026-01-25 10:39:55 -08:00
Olivier Fourdan
a5fb5b4c11 xwayland/window-buffers: Move code to submit pixmaps
Move the code which takes care of submitting pixmaps and the
synchronization points to its own function.

This will allow to reuse that code from different code path.

No functional change intended.

Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1571>
(cherry picked from commit 33330f0dc9)
2026-01-25 10:39:54 -08:00
Olivier Fourdan
6e6707ea88 xwayland/window-buffers: Do not always set syncpnts
The function xwl_window_swap_pixmap() can be called from two places,
either from xwl_window_attach_buffer() or from damage_report().

When called from xwl_window_attach_buffer(), the new buffer is attached
and the surface committed.

However, when called from damage_report(), a new buffer might not be
attached before the surface is committed.

That's fine with implicit synchronization, but if we use explicit
synchronization, committing a surface without a new buffer attached but
with a release timeline point set is a protocol error:

| If at surface commit time there is a pending release timeline point
| set but no pending buffer attached, a no_buffer error is raised.

To avoid such an issue, add a new parameter to xwl_window_swap_pixmap()
to hint whether it should set the synchronization points, and have the
synchronization points set only from xwl_window_attach_buffer().

v2: Rename param to handle_sync (Michel)

Suggested-by: Michel Dänzer <mdaenzer@redhat.com>
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1571>
(cherry picked from commit aab01c7391)
2026-01-25 10:39:54 -08:00
Olivier Fourdan
379b24a7c9 xwayland/window-buffers: Use synchronization from GLAMOR/GBM
Now that we have the buffer synchronization implemented in the
GLAMOR/GBM code, switch to use that code.

At this point, there is still not functional change intended, this is
still preparation work for a fix that is still to come.

Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1571>
(cherry picked from commit 256cef8b20)
2026-01-25 10:39:54 -08:00
Olivier Fourdan
a326f1e982 xwayland/glamor/gbm: Copy explicit sync code to GLAMOR/GBM
Copy the code to deal with synchronization objects from the window
buffers to the GLAMOR/GBM code.

The idea is to deal with synchronizations for all pixmaps, even when
there is no window buffer involved.

This is still preparation work for the following commits, no functional
change intended at this point.

v2: Use a "xwl_window_buffer *" instead of a "void *data" (Michel)
v3: Bail early if there's no xwl_window_buffer (Michel)
v4: Rename xwl_window_submit_pixmap() to
    xwl_glamor_gbm_wait_release_fence() (Michel)

Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1571>
(cherry picked from commit cc021aca99)
2026-01-25 10:39:54 -08:00