Commit Graph

17 Commits

Author SHA1 Message Date
Michel Dänzer 440ed5948b present/wnmd: Translate update region to screen space
The region as passed in is in the source pixmap's coordinate space, so
intersecting it with the clipList (which is in screen space) resulted in
disappointment.

Fixes Firefox popups such as the hamburger menu when using the EGL
backend.

v2:
* Drop vblank->x/y_off from RegionTranslate call, since they're always
  0 here (present_wnmd_check_flip rejects flips for x/y_off != 0).

Reported-by: Robert Mader <robert.mader@posteo.de>
Tested-by: Robert Mader <robert.mader@posteo.de>
Reviewed-by: Olivier Fourdan <ofourdan@redhat.com>
Tested-by: Joakim Tjernlund <joakim.tjernlund@infinera.com> # v1
(cherry picked from commit 466b8b43fb355c6040cee45406860b8b8c04e948)
2020-12-01 11:25:31 +01:00
Michel Dänzer c3e4c1a0fd present/wnmd: Execute copies at target_msc-1 already
It always takes one update cycle for the copy to become visible on the
host windowing system, so waiting for the target MSC resulted in 1 cycle
delay.

We re-use the idle list for copies which were executed but need their
completion event sent.

Fixes black seams when resizing the "Builder" sub-window of

 GDK_BACKEND=x11 gtk4-demo

on Xwayland (see
https://gitlab.gnome.org/GNOME/mutter/-/issues/1290#note_873557).

Unfortunately, this cannot completely fix the seams with apps which
queue up multiple frames in advance, since there's always at least one
queued frame corresponding to the old window size. But it should at
least help a little in that case as well.

v2:
* Bug fix: Don't update exec_msc in present_wnmd_check_flip_window.
  (Roman Gilg)
* Use exec_msc = target_msc - 1 instead of exec_msc--, and add a
  comment, for clarity.
v3:
* Drop exec_msc = target_msc again in present_wnmd_execute.
* present_execute_copy should never set vblank->queued in
  present_wnmd_execute now, so replace that branch with an assertion.
  (Roman Gilg)

Reviewed-by: Roman Gilg <subdiff@gmail.com>
Tested-by: Roman Gilg <subdiff@gmail.com>
(cherry picked from commit 1cccb486d4)
[Since present_wnmd_event_notify hasn't been split up on the 1.20
branch, it needs to check vblank->flip. Doing the same in
present_wnmd_free_idle_vblanks to be safe, though I'm not sure it's
actually possible to hit non-flips there.]
2020-10-08 08:36:42 +00:00
Michel Dänzer 96ef31e0f2 present/wnmd: Move up present_wnmd_queue_vblank
Allowing it to be called from more functions than before. No functional
change.

Reviewed-by: Roman Gilg <subdiff@gmail.com>
Tested-by: Roman Gilg <subdiff@gmail.com>
(cherry picked from commit d14ea667fe)
2020-10-08 08:36:42 +00:00
Michel Dänzer 669e40390c present: Add present_vblank::exec_msc field
For tracking the MSC when the present can be executed separately from
the target MSC.

Allows removing the requeue field instead, plus more later.

v2:
* Rename wait_msc → exec_msc (Roman Gilg)
* Use exec_msc = target_msc instead of exec_msc++, for clarity.
* Bug fix: Set exec_msc = target_msc also if present_flip returned
  false in present_execute.
v3:
* Set exec_msc = target_msc also if present_wnmd_flip returned
  false in present_wnmd_execute, for consistency.
v4:
* Specifically check for exec_msc == crtc_msc + 1 in
  present_execute_wait/copy, to avoid re-introducing
  https://bugs.freedesktop.org/show_bug.cgi?id=94596 .

Reviewed-by: Roman Gilg <subdiff@gmail.com>
Tested-by: Roman Gilg <subdiff@gmail.com>
(cherry picked from commit b0b3159abd)
2020-10-08 08:36:42 +00:00
Michel Dänzer dae234efdb present: Move flip target_msc adjustment out of present_vblank_create
Preparation for different handling between SCMD & WNMD. No functional
change intended.

Reviewed-by: Roman Gilg <subdiff@gmail.com>
Tested-by: Roman Gilg <subdiff@gmail.com>
(cherry picked from commit 4c92dea952)
2020-10-08 08:36:42 +00:00
Michel Dänzer 174cb91d82 present/wnmd: Remove dead check from present_wnmd_check_flip
present_wnmd_toplvl_pixmap_window returns a window with the same window
pixmap, so the check could never fail.

Reviewed-by: Roman Gilg <subdiff@gmail.com>
(cherry picked from commit b6b1161fd7)
2020-09-30 15:06:30 +00:00
Michel Dänzer f4006d795c present/wnmd: Can't use page flipping for windows clipped by children
Noticed this was missing while working on the following fix.

v2:
* Dropped present_wnmd_can_window_flip hunk (that function is never
  called, will be cleaned up in a follow-up MR).

Reviewed-by: Olivier Fourdan <ofourdan@redhat.com> # v1
Reviewed-by: Roman Gilg <subdiff@gmail.com>
(cherry picked from commit 7ac303c7b1)
2020-09-30 15:06:30 +00:00
Roman Gilg 7da8e7babe present: Check valid region in window mode flips
For Pixmap flips to have well defined outcomes the window must be contained by
the valid region if such region was specified.

The valid region is inserted as an argument to the check in window mode.
Setting this argument is missing in screen mode as well but we ignore it for now
and only add it to window mode.

It seems there are none or only very few clients actually making use of valid
regions at the moment. For simplicity we therefore just check if a valid region
was set by the client and in this case do never flip, independently of the
window being contained by the region or not.

Signed-off-by: Roman Gilg <subdiff@gmail.com>
(cherry picked from commit 591916ea9e)
2020-08-18 04:12:09 +00:00
Olivier Fourdan 0e60139064 present/wnmd: Relax assertion on CRTC on abort_vblank()
Currently, the function `present_wnmd_abort_vblank()` would fail if the
given `crtc` is NULL.

However, `xwl_present_get_crtc()` can return `NULL` under some
circumstances, which would cause an unexpected termination of Xwayland
in such a case, caused by the assertion failure being triggered.

Remove the assertion, considering that the `crtc` isn't actually used in
neither `present_wnmd_abort_vblank()` nor `xwl_present_abort_vblank()`.

Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-by: Michel Dänzer <mdaenzer@redhat.com>
Closes: https://gitlab.freedesktop.org/xorg/xserver/issues/937
(cherry picked from commit 4f984fc06b)
2019-11-21 10:52:12 +01:00
Michel Dänzer 01a03a476a present/wnmd: Allow flipping if the window pixmap matches the toplevel's
Instead of testing window->redirectDraw.

With Xwayland, the toplevel window is always redirected, so this would
unnecessarily preclude flipping there in some cases, e.g. with wlroots
based Wayland compositors or with fullscreen X11 windows in weston.

Fixes issue #631.
(Cherry picked from commit a093a88531)
2019-02-22 11:56:44 +01:00
Lionel Landwerlin f5a77233b9 present: fix compile warning with debug traces
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
(cherry picked from commit a425eee6dc)
2019-02-20 14:23:13 -05:00
Olivier Fourdan f89518e17f present/wnmd: Fix use after free on CRTC removal
Xwayland will add and remove CRTCs as Wayland outputs are added or
removed.

If there is a pending flip when this occurs, the
`xwl_present_sync_callback()` will be triggered after the Xwayland
output's RRCtrcPtr has been destroyed, hence causing a crash in Xwayland
while trying to use freed memory:

  #1  abort ()
  #2  OsAbort () at utils.c:1350
  #3  AbortServer () at log.c:877
  #4  FatalError () at log.c:1015
  #5  OsSigHandler () at osinit.c:156
  #6  <signal handler called>
  #7  dixGetPrivate () at ../include/privates.h:122
  #8  dixLookupPrivate () at ../include/privates.h:166
  #9  present_screen_priv () at present_priv.h:198
  #10 present_wnmd_flip () at present_wnmd.c:358
  #11 present_wnmd_execute () at present_wnmd.c:466
  #12 present_wnmd_re_execute () at present_wnmd.c:80
  #13 xwl_present_sync_callback () at xwayland-present.c:287
  #14 ffi_call_unix64 () from /lib64/libffi.so.6
  #15 ffi_call () from /lib64/libffi.so.6
  #16 wl_closure_invoke () at src/connection.c:1006
  #17 dispatch_event () at src/wayland-client.c:1427
  #18 dispatch_queue () at src/wayland-client.c:1573
  #19 wl_display_dispatch_queue_pending () at src/wayland-client.c:1815
  #20 wl_display_dispatch_pending () at src/wayland-client.c:1878
  #21 xwl_read_events () at xwayland.c:814
  #22 ospoll_wait () at ospoll.c:651
  #23 WaitForSomething () at WaitFor.c:208
  #24 Dispatch () at ../include/list.h:220
  #25 dix_main () at main.c:276

To avoid the issue, get the `ScreenPtr` from the window instead of the
CRTC that might have been just freed, `xwl_present_flip()` has no use
for the CRTC anyway.

Bugzilla: https://bugs.freedesktop.org/108249
Suggested-by: Michel Daenzer <michel.daenzer@amd.com>
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-by: Michel Daenzer <michel.daenzer@amd.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
(cherry picked from commit b768b7d6ce)
2019-01-09 15:26:33 +01:00
Lionel Landwerlin 1b0db2c742 present: fix freed pointer access
When a vblank has been marked as aborted, it's going to be free in the
flip_notify function when stopped. We can't notify it after it's
stopped because the pointer is invalid.

Valgrind backtrace:

==5331== Invalid read of size 8
==5331==    at 0x212B4D: present_vblank_notify (present_vblank.c:34)
==5331==    by 0x21439B: present_wnmd_flip_notify (present_wnmd.c:194)
==5331==    by 0x21439B: present_wnmd_event_notify (present_wnmd.c:228)
==5331==    by 0x156216: xwl_present_sync_callback (xwayland-present.c:282)
==5331==    by 0x6570FCD: ffi_call_unix64 (in /usr/lib/x86_64-linux-gnu/libffi.so.6.0.4)
==5331==    by 0x657093E: ffi_call (in /usr/lib/x86_64-linux-gnu/libffi.so.6.0.4)
==5331==    by 0x4DDB183: ??? (in /usr/lib/x86_64-linux-gnu/libwayland-client.so.0.3.0)
==5331==    by 0x4DD79D8: ??? (in /usr/lib/x86_64-linux-gnu/libwayland-client.so.0.3.0)
==5331==    by 0x4DD8EA3: wl_display_dispatch_queue_pending (in /usr/lib/x86_64-linux-gnu/libwayland-client.so.0.3.0)
==5331==    by 0x14BCCA: xwl_read_events (xwayland.c:814)
==5331==    by 0x2AC0D0: ospoll_wait (ospoll.c:651)
==5331==    by 0x2A5322: WaitForSomething (WaitFor.c:208)
==5331==    by 0x27574B: Dispatch (dispatch.c:421)
==5331==  Address 0x1b44dc98 is 40 bytes inside a block of size 184 free'd
==5331==    at 0x48369EB: free (vg_replace_malloc.c:530)
==5331==    by 0x213B0A: present_wnmd_free_idle_vblanks (present_wnmd.c:118)
==5331==    by 0x213B0A: present_wnmd_flips_stop (present_wnmd.c:161)
==5331==    by 0x2143EF: present_wnmd_flip_notify (present_wnmd.c:192)
==5331==    by 0x2143EF: present_wnmd_event_notify (present_wnmd.c:228)
==5331==    by 0x156216: xwl_present_sync_callback (xwayland-present.c:282)
==5331==    by 0x6570FCD: ffi_call_unix64 (in /usr/lib/x86_64-linux-gnu/libffi.so.6.0.4)
==5331==    by 0x657093E: ffi_call (in /usr/lib/x86_64-linux-gnu/libffi.so.6.0.4)
==5331==    by 0x4DDB183: ??? (in /usr/lib/x86_64-linux-gnu/libwayland-client.so.0.3.0)
==5331==    by 0x4DD79D8: ??? (in /usr/lib/x86_64-linux-gnu/libwayland-client.so.0.3.0)
==5331==    by 0x4DD8EA3: wl_display_dispatch_queue_pending (in /usr/lib/x86_64-linux-gnu/libwayland-client.so.0.3.0)
==5331==    by 0x14BCCA: xwl_read_events (xwayland.c:814)
==5331==    by 0x2AC0D0: ospoll_wait (ospoll.c:651)
==5331==    by 0x2A5322: WaitForSomething (WaitFor.c:208)
==5331==  Block was alloc'd at
==5331==    at 0x48377D5: calloc (vg_replace_malloc.c:711)
==5331==    by 0x212D9F: present_vblank_create (present_vblank.c:69)
==5331==    by 0x214014: present_wnmd_pixmap (present_wnmd.c:610)
==5331==    by 0x21576C: proc_present_pixmap (present_request.c:150)
==5331==    by 0x27599D: Dispatch (dispatch.c:479)
==5331==    by 0x279945: dix_main (main.c:276)
==5331==    by 0x633AB16: (below main) (libc-start.c:310)

v2: Still notify aborted flips (Roman)

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107314
Reviewed-by: Roman Gilg <subdiff@gmail.com>
Tested-by: Roman Gilg <subdiff@gmail.com>
(cherry picked from commit ce271535ad)
2018-10-04 17:25:02 +02:00
Michel Dänzer 883d4d00b4 present/wnmd: Preserve window pixmap's screen_x/y on flip
The incorrect values could result in the new pixmap's contents
getting corrupted down the line.

v2:
* Guard screen_x/y lines by #ifdef COMPOSITE

Bugzilla: https://bugs.freedesktop.org/106841
Fixes: 029608dd80 "present: Add window flip mode"
Reviewed-by: Adam Jackson <ajax@redhat.com> # v1
Reviewed-by: Keith Packard <keithp@keithp.com> # v1
Reviewed-by: Roman Gilg <subdiff@gmail.com>
Tested-by: Olivier Fourdan <ofourdan@redhat.com> # v1
(cherry picked from commit 10eec2ccb1)
2018-06-19 09:52:35 -04:00
Roman Gilg 22285a6f1c present: fix msc offset calculation in window mode
Instead of getting the current msc value from the window, which might be
different to old one directly take the last saved msc value saved in
the window_priv struct.

Signed-off-by: Roman Gilg <subdiff@gmail.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
2018-05-02 14:55:48 -04:00
Roman Gilg 66a5c0bccb present: In window flip mode report damage on flip to driver
Calculate damage before trying to flip and report it to the driver.
This allows drivers to optimize their rendering.

Signed-off-by: Roman Gilg <subdiff@gmail.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
2018-03-28 14:36:39 -04:00
Roman Gilg 029608dd80 present: Add window flip mode
In contrast to screen flip mode this mode:
* supports flips per windows (these windows currently need to have the same
  size as their parent windows with the same pixmap),
* sends pixmap idle signals to the client only after the driver has given
  an additional event notify.

This patch only introduces the new mode as a stub. It additionally needs a
driver hook, such that it can get initialized and appropriate cleanup
functions.

Signed-off-by: Roman Gilg <subdiff@gmail.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
2018-03-28 14:36:36 -04:00