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clutter/frame: Carry target presentation time

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This will be used, when available, to both check whether frames missed a
vsync cycle, or to calculate when page flips should be queued.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2795>
This commit is contained in:
Jonas Ådahl 2022-07-07 09:12:04 +02:00
parent 916b21674e
commit 56da8418f9
4 changed files with 24 additions and 0 deletions
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2
clutter/clutter/clutter-frame-clock.c
View file

@ -733,6 +733,8 @@ clutter_frame_clock_dispatch (ClutterFrameClock *frame_clock,
frame = g_new0 (ClutterFrame, 1);
frame->frame_count = frame_count;
frame->has_target_presentation_time = frame_clock->is_next_presentation_time_valid;
frame->target_presentation_time_us = frame_clock->next_presentation_time_us;
COGL_TRACE_BEGIN (ClutterFrameClockEvents, "Frame Clock (before frame)");
if (iface->before_frame)

3
clutter/clutter/clutter-frame-private.h
View file

@ -24,6 +24,9 @@ struct _ClutterFrame
{
int64_t frame_count;
gboolean has_target_presentation_time;
int64_t target_presentation_time_us;
gboolean has_result;
ClutterFrameResult result;
};

15
clutter/clutter/clutter-frame.c
View file

@ -23,6 +23,21 @@ clutter_frame_get_count (ClutterFrame *frame)
return frame->frame_count;
}
gboolean
clutter_frame_get_target_presentation_time (ClutterFrame *frame,
int64_t *target_presentation_time_us)
{
if (frame->has_target_presentation_time)
{
*target_presentation_time_us = frame->target_presentation_time_us;
return TRUE;
}
else
{
return FALSE;
}
}
ClutterFrameResult
clutter_frame_get_result (ClutterFrame *frame)
{

4
clutter/clutter/clutter-frame.h
View file

@ -29,6 +29,10 @@ typedef struct _ClutterFrame ClutterFrame;
CLUTTER_EXPORT
int64_t clutter_frame_get_count (ClutterFrame *frame);
CLUTTER_EXPORT
gboolean clutter_frame_get_target_presentation_time (ClutterFrame *frame,
int64_t *target_presentation_time_us);
CLUTTER_EXPORT
void clutter_frame_set_result (ClutterFrame *frame,
ClutterFrameResult result);