wayland: correctly handle non-CLOCK_MONOTONIC clocks

The wayland presentation time code currently always assumes that only
CLOCK_MONOTONIC can be used. There is a naive attempt to ignore clocks
other than CLOCK_MONOTONIC, but the logic is actually totally wrong and
the timestamps would be used anyway. Fix this by checking a use_present
bool (similar to use_present in xorg) which is set to true if we receive
a valid clock in the clockid event. Additionally, allow
CLOCK_MONOTONIC_RAW as a valid clockid. In practice, it should be the
same as CLOCK_MONOTONIC for us (ntp/adjustime difference wouldn't
matter). Since this is a linux-specific clock, add a define for it if it
is not found.

1 files changed, 1 insertions, 0 deletions

diff --git a/video/out/wayland_common.h b/video/out/wayland_common.h
index 365ae42dab..77699a3dd6 100644
--- a/video/out/wayland_common.h
+++ b/video/out/wayland_common.h
@@ -92,6 +92,7 @@ struct vo_wayland_state {
     struct wp_presentation_feedback *feedback;
     struct mp_present *present;
     int64_t refresh_interval;
+    bool use_present;
 
     /* xdg-decoration */
     struct zxdg_decoration_manager_v1 *xdg_decoration_manager;