Commit Graph

17762 Commits

Author SHA1 Message Date
Povilas Kanapickas 0146fd6d36 xwayland: Fix a race condition when setting up input devices
The compositor may send us wl_seat and its capabilities before sending
e.g. relative_pointer_manager or pointer_gesture interfaces. This would
result in devices being created in capabilities handler, but listeners
not, because the interfaces weren't available at the time. So we
manually attempt to setup listeners again.

Signed-off-by: Povilas Kanapickas <povilas@radix.lt>
2021-12-04 15:55:21 +00:00
Povilas Kanapickas ff2de0b87e xwayland: Implement support for touchpad gestures
The implementation is relatively straightforward because both wayland
and Xorg use libinput semantics for touchpad gestures.

Signed-off-by: Povilas Kanapickas <povilas@radix.lt>
2021-12-04 15:55:21 +00:00
Povilas Kanapickas 04c93b98e9 meson: Correctly set DDXOSVERRORF and DDXBEFORERESET on xwin
This worked with autotools, but not meson build system.

Signed-off-by: Povilas Kanapickas <povilas@radix.lt>
2021-12-03 22:35:47 +00:00
Jonathan Gray 5ac6319776 glamor: fix free of uninitialised pointers
Attempting to run fvwm on a x61/965gm with xserver 1.21.1 with the
modesetting driver on OpenBSD/amd64 would cause the xserver to
reliably crash.

I tracked this down to the free() calls introduced in
2906ee5e4a
(d1ca47e124 in branch).

clang also warns about this:
glamor_program.c:296:13: warning: variable 'vs_prog_string' is used uninitialized whenever 'if' condition is true [-Wsometimes-uninitialized]
glamor_program.c:290:9: warning: variable 'vs_prog_string' is used uninitialized whenever 'if' condition is true [-Wsometimes-uninitialized]
glamor_program.c:288:9: warning: variable 'vs_prog_string' is used uninitialized whenever 'if' condition is true [-Wsometimes-uninitialized]
glamor_program.c:277:13: warning: variable 'vs_prog_string' is used uninitialized whenever 'if' condition is true [-Wsometimes-uninitialized]
glamor_program.c:296:13: warning: variable 'fs_prog_string' is used uninitialized whenever 'if' condition is true [-Wsometimes-uninitialized]
glamor_program.c:290:9: warning: variable 'fs_prog_string' is used uninitialized whenever 'if' condition is true [-Wsometimes-uninitialized]
glamor_program.c:288:9: warning: variable 'fs_prog_string' is used uninitialized whenever 'if' condition is true [-Wsometimes-uninitialized]
glamor_program.c:277:13: warning: variable 'fs_prog_string' is used uninitialized whenever 'if' condition is true [-Wsometimes-uninitialized]

Signed-off-by: Jonathan Gray <jsg@jsg.id.au>
Reviewed-by: Olivier Fourdan <ofourdan@redhat.com>
Fixes: 2906ee5e4 ("glamor: Fix leak in glamor_build_program()")
2021-12-03 20:54:46 +11:00
Peter Hutterer be16bd8543 xkb: fix XkbSetMap check for the keytypes count
The previous if/else condition resulted in us always setting the key
type count to the current number of key types. Split this up correctly.

Regression introduced in de940e06f8

Fixes #1249

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2021-12-03 00:33:23 +00:00
Olivier Fourdan 6dd9709bd8 xwayland/eglstream: Prefer EGLstream if available
Currently, when given the choice, Xwayland will pick the GBM backend
over the EGLstream backend if both are available, unless the command
line option “-eglstream” is specified.

The NVIDIA proprietary driver had no support for GBM until driver series
495, but starting with the driver series 495, both can be used.

But there are other requirements with the rest of the stack, typically
Mesa, egl-wayland, libglvnd as documented in the NVIDIA driver.

So if the NVIDIA driver series 495 gets installed, Xwayland will pick
the GBM backend even if EGLstream is available and may fail to render
properly.

To avoid that issue, prefer EGLstream if EGLstream and all the Wayland
interfaces are available, and fallback to GBM automatically unless
“-eglstream” was specified.

With this, the compositor, given the choice, can decide which actual
backend Xwayland would use by advertising (or not) the Wayland
"wl_eglstream_controller" interface.

This change has no impact on compositors which do not have support for
EGLstream in the first place.

Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Acked-by: Michel Dänzer <mdaenzer@redhat.com>
2021-12-02 08:13:49 +00:00
Olivier Fourdan c5d1fed9fa xwayland/glamor: Log backend selected for debug
Add (verbose) statements to trace the actual backend used with glamor.

That can be useful for debugging.

Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-by: Michel Dänzer <mdaenzer@redhat.com>
2021-12-02 08:13:49 +00:00
Olivier Fourdan 30d0d4a19b xwayland/glamor: Change errors to verbose messages
On a normal startup sequence, the Xwayland glamor backend would log
an error whenever a required Wayland protocol is missing.

Those are not really errors though, more informational messages along
the glamor backend selection process.

Demote those errors to verbose messages to reduce the verbosity of
Xwayland at startup by default.

Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-by: Jonas Ådahl <jadahl@gmail.com>
2021-12-01 15:13:11 +01:00
Olivier Fourdan 96c82befa2 xwayland/eglstream: Demote EGLstream device warning
If no EGLstream capable device is found at startup, Xwayland's EGLstream
backend will log an error message "glamor: No eglstream capable devices
found".

However, considering that the vast majority of drivers do not implement
EGLstream, the lack of EGLstream capable device is more of the norm than
the exception.

Change the error message to a log verbose message.

Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-by: Simon Ser <contact@emersion.fr>
Reviewed-by: Jonas Ådahl <jadahl@gmail.com>
2021-12-01 15:12:06 +01:00
Jocelyn Falempe da9d012a9c xf86/logind: Fix drm_drop_master before vt_reldisp
When switching to VT, the ioctl DRM_DROP_MASTER must be done before
the ioctl VT_RELDISP. Otherwise the kernel can't change the modesetting
reliably, and this leads to the console not showing up in some cases, like
after unplugging a docking station with a DP or HDMI monitor.

Before doing the VT_RELDISP, send a dbus message to logind, to
pause the drm device, so logind will do the ioctl DRM_DROP_MASTER.

With this patch, it changes the order logind will send the resume
event, and drm will be sent last instead of first.
so there is a also fix to call systemd_logind_vtenter() at the right time.

Signed-off-by: Jocelyn Falempe <jfalempe@redhat.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
2021-11-22 12:57:24 +01:00
Jocelyn Falempe f5bd039633 xf86/logind: fix call systemd_logind_vtenter after receiving drm device resume
logind send the resume event for input devices and drm device,
in any order. if we call vt_enter before logind resume the drm device,
it leads to a driver error, because logind has not done the
DRM_IOCTL_SET_MASTER on it.

Keep the old workaround to make sure we call systemd_logind_vtenter at
least once if there are no platform device

Signed-off-by: Jocelyn Falempe <jfalempe@redhat.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
2021-11-22 12:56:20 +01:00
Povilas Kanapickas 35af1299e7 Revert "hw/xfree86: Propagate physical dimensions from DRM connector"
Quite a lot of applications currently expect the screen DPI exposed by
the X server to be 96 even when the real display DPI is different.
Additionally, currently Xwayland completely ignores any hardware
information and sets the DPI to 96. Accordingly the new behavior, even
if it fixes a bug, should not be enabled automatically to all users.

A better solution would be to make the default DPI stay as is and enable
the correct behavior with a command line option (maybe -dpi auto, or
similar). For now let's just revert the bug fix.

This reverts commit 05b3c681ea.

Signed-off-by: Povilas Kanapickas <povilas@radix.lt>
2021-11-16 22:34:56 +00:00
Dave Airlie a7b0a7fabd dri2: add crocus to the list of va_gl users 2021-11-11 06:49:18 +10:00
Povilas Kanapickas 9e82a674b5 meson: Bump version after X server 21.1 branch off
Reviewed-by: Michel Dänzer <mdaenzer@redhat.com>
2021-11-08 21:00:26 +02:00
Simon Ser 2df3a62c66 meson: add subproject fallback for libxcvt
Depends on:
https://gitlab.freedesktop.org/xorg/lib/libxcvt/-/merge_requests/6

Signed-off-by: Simon Ser <contact@emersion.fr>
2021-11-06 17:49:54 +00:00
Simon Ser 43452690df meson: use add_project_arguments instead of add_global_arguments
add_global_arguments affects subprojects too. add_project_arguments
only affects the current project.

Signed-off-by: Simon Ser <contact@emersion.fr>
2021-11-06 17:49:54 +00:00
nerdopolis b8c12aac65 xfree86: On Linux, while only seat0 can have TTYs, don't assmume all seat0s have TTYs 2021-11-06 17:17:01 +00:00
Jon Turney d7d6e6a4ed appveyor: Add libxcvt build dep
Install libxcvt build dep on appveyor.

Explicitly install python3.8 lxml to ensure it matches python version
installed (to workaround issues with Cygwin installer).

Drop explicit configuration of hal and udev, as meson.build now knows to
turn those off for Cygwin.
2021-11-04 13:03:25 +00:00
Jon Turney 8218c2383c meson: Fix build of xwinclip tool when xcb is installed in non-default location 2021-11-04 13:03:25 +00:00
Jon Turney 37b1c3d074 meson: Correctly set Libs: in xorg-server.pc for Windows
c.f. configure.ac:1663

v2:
Also drop -lfb from XORG_DRIVER_LIBS, since it's linked statically into
the Xorg server since c1703cdf.
2021-11-04 13:03:25 +00:00
Jon Turney 0f9aaa2c6f meson: Add dependencies for hw/xwin/ resource compilation
Add depend_files: to indicate dependencies for hw/xwin/ resource compilation
(only has effect with meson >= 0.47.0).
2021-11-04 13:03:25 +00:00
Matthieu Herrb 80eeff3eba Make xf86CompatOutput() return NULL when there are no privates
Some drivers (mach64 w/o DRI for instance) don't initialize privates.

Signed-off-by: Matthieu Herrb <matthieu.herrb@laas.fr>
2021-11-04 10:36:45 +00:00
Michel Dänzer b656b0aa5d xwayland: Store EGLContext pointer in lastGLContext
We were storing the pointer to struct glamor_context. However, glamor
itself is storing the EGLContext pointer since the commit below. Since
the two values could never be equal, this resulted in constant
superfluous eglMakeCurrent calls. The implicit glFlush triggered by
those couldn't be good for performance.

Fixes: 7c88977d33 "glamor: Store the actual EGL/GLX context pointer in lastGLContext"
Reviewed-by: Olivier Fourdan <ofourdan@redhat.com>
2021-11-04 09:54:23 +00:00
Jon Turney 0099412ea4 s/__/@/ in inputtestdrv manpage
Update manpage subsitution style for 2e497bf8
2021-11-03 19:58:53 +00:00
Povilas Kanapickas c97397dc47 Remove autotools support
Signed-off-by: Povilas Kanapickas <povilas@radix.lt>
2021-10-27 13:15:40 +03:00
Olivier Fourdan c93c2e7718 xwayland: Add xwl_cursor_clear_frame_cb()
The code to clear a cursor pending frame callback was duplicated in
multiple places in the code.

Introduce a new xwl_cursor_clear_frame_cb() function and remove the
duplicated code.

No functional change.

Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-by: Simon Ser <contact@emersion.fr>
Reviewed-by: Carlos Garnacho <carlosg@gnome.org>
2021-10-25 12:05:42 +00:00
Olivier Fourdan 672fe9e244 xwayland: Move xwl_cursor_release() to xwayland-cursor.c
It just make more sense to keep xwl_cursor_release() with the rest of
the cursor code.

No functional change.

Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-by: Simon Ser <contact@emersion.fr>
Reviewed-by: Carlos Garnacho <carlosg@gnome.org>
2021-10-25 12:05:42 +00:00
Olivier Fourdan e6401e6025 xwayland: Rename xwl_seat_update_cursor()
Two different functions in xwayland-cursor.c and xwayland-input.c use
the same name xwl_seat_update_cursor() which is confusing when reading
the code.

Rename xwl_seat_update_cursor() to xwl_seat_update_all_cursors() in
xwayland-cursor.c to help with readability of the code.

No functional change.

Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-by: Simon Ser <contact@emersion.fr>
Reviewed-by: Carlos Garnacho <carlosg@gnome.org>
2021-10-25 12:05:42 +00:00
Simon Ser ccffe90c36 xwayland: fix -noTouchPointerEmulation
Passing -noTouchPointerEmulation results in an error about the
flag not being recognized.

Signed-off-by: Simon Ser <contact@emersion.fr>
Fixes: 7d34b1f2b7 ("xwayland: add -noTouchPointerEmulation")
2021-10-22 18:19:48 +02:00
Olivier Fourdan f37d11cd96 xwayland/test: Don't catch errors in run-piglit.sh
The xwayland-piglit.sh script spawns weston, runs run-piglit.sh and
finally kills weston.

However, this whole script is running with “-e” meaning that any error
will cause the script to exit immediately.

As a result, if run-piglit.sh exits with a non-zero code such as 77 for
skipping the test, the script will exit prematurely leaving weston
running, and meson will simply wait until the timeout kicks in, and
fail eventually instead of skipping the test as it should.

Fix this by removing the option to exit immediately prior to spawn the
script run-piglit.sh.

Closes: https://gitlab.freedesktop.org/xorg/xserver/-/issues/1204
Suggested-by: Michel Dänzer <mdaenzer@redhat.com>
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-by: Michel Dänzer <mdaenzer@redhat.com>
2021-10-21 11:26:47 +02:00
Olivier Fourdan 35c5664fd4 xwayland: Clear tablet cursor pending frame cb
If the tablet tool is moved out of proximity before the cursor's pending
frame callback is received, any further attempts to update the cursor
will fail because the frame callback is still pending.

Make sure to clear any cursor pending frame when the tool gets in
proximity again, similar to what we do when the pointer re-enters a
surface, so that the cursor updates aren't discarded.

Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
See-also: https://gitlab.gnome.org/GNOME/mutter/-/issues/1969
Reviewed-by: Carlos Garnacho <carlosg@gnome.org>
2021-10-20 08:01:06 +00:00
Mario Kleiner f467f85ca1 Fix RandR leasing for more than 1 simultaneously active lease.
Due to a switched order of parameters in the xorg_list_add()
call inside ProcRRCreateLease(), adding a new lease for RandR
output leasing does not actually add the new RRLeasePtr lease
record to the list of existing leases for a X-Screen, but instead
replaces the existing list with a new list that has the new lease
as the only element, and probably leaks a bit of memory.

Therefore the server "forgets" all active leases for a screen,
except for the last added lease. If multiple leases are created
in a session, then destruction of all leases but the last one
will fail in many cases, e.g., during server shutdown in
RRCloseScreen(), or resource destruction, e.g., in
RRCrtcDestroyResource().

Most importantly, it fails if a client simply close(fd)'es the
DRM master descriptor to release a lease, quits, gets killed or
crashes. In this case the kernel will destroy the lease and shut
down the display output, then send a lease event via udev to the
ddx, which e.g., in the modesetting-ddx will trigger a call to
drmmode_validate_leases().

That function is supposed to detect the released lease and tell
the server to terminate the lease on the server side as well,
via xf86CrtcLeaseTerminated(), but this doesn't happen for all
the leases the server has forgotten. The end result is a dead
video output, as the server won't reinitialize the crtc's
corresponding to the terminated but forgotten lease.

This bug was observed when using the amdvlk AMD OSS Vulkan
driver and trying to lease multiple VKDisplay's, and also
under Mesa radv, as both Mesa Vulkan/WSI/Display and amdvlk
terminate leases by simply close()ing the lease fd, not by
sending explicit RandR protocol requests to free leases.

Leasing worked, but ending a session with multiple active
leases ended in a lot of unpleasant darkness.

Fixing the wrong argument order to xorg_list_add() fixes the
problem. Tested on single-X-Screen and dual-X-Screen setups,
with one, two or three active leases.

Please merge this for the upcoming server 21.1 branch.
Merging into server 1.20 would also make a lot of sense.

Fixes: e4e3447603
Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Cc: Keith Packard <keithp@keithp.com>
2021-10-19 09:19:28 +02:00
nerdopolis ca1dfdc9aa os: Try to discover the current seat with the XDG_SEAT var first 2021-10-14 10:35:43 +00:00
Olivier Fourdan 246ae00ba3 xwayland: Notify of root size change with XRandR emulation
Some clients (typically Java, but maybe others) rely on ConfigureNotify
or RRScreenChangeNotify events to tell that the XRandR request is
successful.

When emulated XRandR is used in Xwayland, compute the emulated root size
and send the expected ConfigureNotify and RRScreenChangeNotify events
with the emulated size of the root window to the asking X11 client.

Note that the root window size does not actually change, as XRandR
emulation is achieved by scaling the client window using viewports in
Wayland, so this event is sort of misleading.

Also, because Xwayland is using viewports, emulating XRandR does not
reconfigure the outputs location, meaning that the actual size of the
root window which encompasses all the outputs together may not change
in a multi-monitor setup. To work around this limitation, when using an
emulated mode, we report the size of that emulated mode alone as the
root size for the configure notify event.

Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
2021-10-12 08:05:47 +00:00
Alex Richardson f9f705bf3c dix/privates.c: Avoid undefined behaviour after realloc()
Adding the offset between the realloc result and the old allocation to
update pointers into the new allocation is undefined behaviour: the
old pointers are no longer valid after realloc() according to the C
standard. While this works on almost all architectures and compilers,
it causes  problems on architectures that track pointer bounds (e.g.
CHERI or Arm's Morello): the DevPrivateKey pointers will still have the
bounds of the previous allocation and therefore any dereference will
result in a run-time trap.

I found this due to a crash (dereferencing an invalid capability) while
trying to run `XVnc` on a CHERI-RISC-V system. With this commit I can
successfully connect to the XVnc instance running inside a QEMU with a
VNC viewer on my host.

This also changes the check whether the allocation was moved to use
uintptr_t instead of a pointer since according to the C standard:
"The value of a pointer becomes indeterminate when the object it
points to (or just past) reaches the end of its lifetime." Casting to an
integer type avoids this undefined behaviour.

Signed-off-by: Alex Richardson <Alexander.Richardson@cl.cam.ac.uk>
2021-10-08 09:59:11 +00:00
nerdopolis b9218fadf3 xf86: Accept devices with the 'simpledrm' driver.
SimpleDRM 'devices' are a fallback device, and do not have a busid
so they are getting skipped. This will allow simpledrm to work
with the modesetting driver
2021-10-08 09:47:07 +00:00
Mario Kleiner 4b75e65766 modesetting: Consider RandR primary output for selectioh of sync crtc.
The "sync crtc" is the crtc used to drive the display timing of a
drawable under DRI2 and DRI3/Present. If a drawable intersects
multiple video outputs, then normally the crtc is chosen which has
the largest intersection area with the drawable.

If multiple outputs / crtc's have exacty the same intersection
area then the crtc chosen was simply the first one with maximum
intersection. Iow. the choice was random, depending on plugging
order of displays.

This adds the ability to choose a preferred output in such a tie
situation. The RandR output marked as "primary output" is chosen
on such a tie.

This new behaviour and its implementation is consistent with other
video ddx drivers. See amdgpu-ddx, ati-ddx and nouveau-ddx for
reference. This commit is a straightforward port from amdgpu-ddx.

Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
2021-10-08 09:24:00 +00:00
Mario Kleiner 017ce26337 modesetting: Handle mixed VRR and non-VRR display setups better.
In a setup with both VRR capable and non-VRR capable displays,
it was so far inconsistent if the driver would allow use of
VRR support or not, as "is_connector_vrr_capable" was set to
whatever the capabilities of the last added drm output were.
Iow. the plugging order of monitors determined the outcome.

Fix this: Now if at least one display is VRR capable, the driver
will treat an X-Screen as capable for VRR, plugging order no
longer matters.

Tested with a dual-display setup with one VRR monitor and one
non-VRR monitor. This is also beneficial with the new Option
"AsyncFlipSecondaries".

When we are at it, also add some so far missing description of
the "VariableRefresh" driver option, copied from amdgpu-ddx.

Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
2021-10-08 09:24:00 +00:00
Mario Kleiner 66e5a5bb12 modesetting: Enable GAMMA_LUT for lut's with up to 4096 slots.
A lut size of 4096 slots has been verified to work correctly,
as tested with amdgpu-kms. Intel Tigerlake Gen12 hw has a very
large GAMMA_LUT size of 262145 slots, but also issues with its
current GAMMA_LUT implementation, as of Linux 5.14.

Therefore we keep GAMMA_LUT off for large lut's. This currently
excludes Intel Icelake, Tigerlake and later.

This can be overriden via the "UseGammaLUT" boolean xorg.conf option
to force use of GAMMA_LUT on or off.

See following link for the Tigerlake situation:
https://gitlab.freedesktop.org/drm/intel/-/issues/3916#note_1085315

Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
2021-10-07 21:21:14 +00:00
Ray Strode 8b7f4d3259 xkb: Drop check for XkbSetMapResizeTypes
Commit 446ff2d317 added checks to
prevalidate the size of incoming SetMap requests.

That commit checks for the XkbSetMapResizeTypes flag to be set before
allowing key types data to be processed.

key types data can be changed or even just sent wholesale unchanged
without the number of key types changing, however. The check for
XkbSetMapResizeTypes rejects those legitimate requests. In particular,
XkbChangeMap never sets XkbSetMapResizeTypes and so always fails now
any time XkbKeyTypesMask is in the changed mask.

This commit drops the check for XkbSetMapResizeTypes in flags when
prevalidating the request length.
2021-10-07 14:17:26 +00:00
Olivier Fourdan 5daf42b489 xwayland: Set GLVND driver based on GBM backend name
With the GBM backend becoming usable with different drivers such as
NVIDIA, set the GLVND vendor to the same value as the GBM backend name.

Mesa implementation however returns "drm" so we need to special case
this value - Basically, for anything other than "drm" we simply assume
that the GBM backend name is the same as the vendor.

Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-by: Michel Dänzer <mdaenzer@redhat.com>
Reviewed-by: James Jones <jajones@nvidia.com>
Tested-by: James Jones <jajones@nvidia.com>
2021-10-06 07:21:30 +00:00
James Jones f15729376d Use EGL_LINUX_DMA_BUF_EXT to create GBM bo EGLImages
Xwayland was passing GBM bos directly to
eglCreateImageKHR using the EGL_NATIVE_PIXMAP_KHR
target. Given the EGL GBM platform spec claims it
is invalid to create a EGLSurface from a native
pixmap on the GBM platform, implying there is no
mapping between GBM objects and EGL's concept of
native pixmaps, this seems a bit questionable.

This change modifies the bo import function to
extract all the required data from the bo and then
imports it as a dma-buf instead when the dma-buf +
modifiers path is available.

Signed-off-by: James Jones <jajones@nvidia.com>
Reviewed-by: Simon Ser <contact@emersion.fr>
2021-10-05 14:12:16 -07:00
Olivier Fourdan 079c5ccbcd xwayland/shm: Avoid integer overflow on large pixmaps
Xwayland's xwl_shm_create_pixmap() computes the size of the shared
memory pool to create using a size_t, yet the Wayland protocol uses an
integer for that size.

If the pool size becomes larger than INT32_MAX, we end up asking Wayland
to create a shared memory pool of negative size which in turn will raise
a protocol error which terminates the Wayland connection, and therefore
Xwayland.

Avoid that issue early by return a NULL pixmap in that case, which will
trigger a BadAlloc error, but leave Xwayland alive.

Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-by: Jonas Ådahl <jadahl@gmail.com>
2021-10-05 10:00:02 +00:00
Mario Kleiner 545fa90cbf Revert "modesetting: Only use GAMMA_LUT if its size is 1024"
This reverts commit 617f591fc4.

The problem described in that commit exists, but the two
preceeding commits with improvements to the servers RandR
code should avoid the mentioned problems while allowing the
use of GAMMA_LUT's instead of legacy gamma lut.

Use of legacy gamma lut's is not a good fix, because it will reduce
color output precision of gpu's with more than 1024 GAMMA_LUT
slots, e.g., AMD, ARM MALI and KOMEDA with 4096 slot luts,
and some Mediathek parts with 512 slot luts. On KOMEDA, legacy
lut's are completely unsupported by the kms driver, so gamma
correction gets disabled.

The situation is especially bad on Intel Icelake and later:
Use of legacy gamma tables will cause the kms driver to switch
to hardware legacy lut's with 256 slots, 8 bit wide, without
interpolation. This way color output precision is restricted to
8 bpc and any deep color / HDR output (10 bpc, fp16, fixed point 16)
becomes impossible. The latest Intel gen gpu's would have worse
color precision than parts which are more than 10 years old.

Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
2021-09-27 09:44:48 +00:00
Mario Kleiner 7326e131df xfree86: Let xf86RandR12CrtcComputeGamma() deal with non-power-of-2 sizes.
The assumption in the upsampling code was that the crtc->gamma_size
size of the crtc's gamma table is a power of two. This is true for
almost all current driver + gpu combos at least on Linux, with typical
sizes of 256, 512, 1024 or 4096 slots.

However, Intel Gen-11 Icelake and later are outliers, as their gamma
table has 2^18 + 1 slots, very big and not a power of two!

Try to make upsampling behave at least reasonable: Replicate the
last gamma value to fill up remaining crtc->gamma_red/green/blue
slots, which would normally stay uninitialized. This is important,
because while the intel display driver does not actually use all
2^18+1 values passed as part of a GAMMA_LUT, it does need the
very last slot, which would not get initialized by the old code.

This should hopefully create reasonable behaviour with Icelake+
but is untested on the actual Intel hw due to lack of suitable
hw.

Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
2021-09-27 09:44:48 +00:00
Mario Kleiner 966f567432 xfree86: Avoid crash in xf86RandR12CrtcSetGamma() memcpy path.
If randrp->palette_size is zero, the memcpy() path can read past the
end of the randr_crtc's gammaRed/Green/Blue tables if the hw crtc's
gamma_size is greater than the randr_crtc's gammaSize.

Avoid this by clamping the to-be-copied size to the smaller of both
sizes.

Note that during regular server startup, the memcpy() path is only
taken initially twice, but then a suitable palette is created for
use during a session. Therefore during an actual running X-Session,
the xf86RandR12CrtcComputeGamma() will be used, which makes sure that
data is properly up- or down-sampled for mismatching source and
target crtc gamma sizes.

This should avoid reading past randr_crtc gamma memory for gpu's
with big crtc->gamma_size, e.g., AMD/MALI/KOMEDA 4096 slots, or
Intel Icelake and later with 262145 slots.

Tested against modesetting-ddx and amdgpu-ddx under screen color
depth 24 (8 bpc) and 30 (10 bpc) to make sure that clamping happens
properly.

This is an alternative fix for the one attempted in commit
617f591fc4.

Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
2021-09-27 09:44:48 +00:00
Adam Jackson 6c1e6429bc xwayland/glx: Enable sRGB fbconfigs
We turn this on if the GL underneath us can enable GL_FRAMEBUFFER_SRGB.
We do try to generate both capable and incapable configs, which is to
keep llvmpipe working until the client side gets smarter about its srgb
capabilities.
2021-09-23 23:24:59 +00:00
Michel Dänzer 735dbde482 xwayland/present: Move xwl_present_reset_timer call out of xwl_present_flip
xwl_present_reset_timer checks if the pending flip is synchronous, so
we need to call it after adding the pending flip to the flip queue.

Closes: https://gitlab.freedesktop.org/xorg/xserver/-/issues/1219
Fixes: b2a06e0700 "xwayland/present: Drop sync_flip member of struct xwl_present_window"
Tested-by: Olivier Fourdan <ofourdan@redhat.com>
Acked-by: Olivier Fourdan <ofourdan@redhat.com>
2021-09-17 11:55:52 +02:00
Patrik Jakobsson db9e9d45e8 modesetting: Fix dirty updates for sw rotation
Rotation is broken for all drm drivers not providing hardware rotation
support. Drivers that give direct access to vram and not needing dirty
updates still work but only by accident. The problem is caused by
modesetting not sending the correct fb_id to drmModeDirtyFB() and
passing the damage rects in the rotated state and not as the crtc
expects them. This patch takes care of both problems.

Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
2021-09-15 20:31:23 +00:00
Adam Jackson ecdf21035e glamor: Assume EGL in glamor_context
Reviewed-by: Emma Anholt <emma@anholt.net>
2021-09-15 19:14:23 +00:00