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clutter: Remove clutter_stage_set_sync_delay

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The sync_delay field is never accessed.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1707>
This commit is contained in:
Ivan Molodetskikh 2020-11-24 21:43:24 +03:00 committed by Marge Bot
parent f97d2c5f67
commit 9b44aa77b6
3 changed files with 0 additions and 42 deletions
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34
clutter/clutter/clutter-stage.c
View File

@ -3028,40 +3028,6 @@ _clutter_stage_remove_touch_drag_actor (ClutterStage *stage,
NULL);
}
/**
* clutter_stage_set_sync_delay:
* @stage: a #ClutterStage
* @sync_delay: number of milliseconds after frame presentation to wait
* before painting the next frame. If less than zero, restores the
* default behavior where redraw is throttled to the refresh rate but
* not synchronized to it.
*
* This function enables an alternate behavior where Clutter draws at
* a fixed point in time after the frame presentation time (also known
* as the VBlank time). This is most useful when the application
* wants to show incoming data with predictable latency. (The primary
* example of this would be a window system compositor.) By synchronizing
* to provide new data before Clutter redraws, an external source of
* updates (in the compositor, an application) can get a reliable latency.
*
* The appropriate value of @sync_delay depends on the complexity of
* drawing the stage's scene graph - in general a value of between 0
* and 8 ms (up to one-half of a typical 60hz frame rate) is appropriate.
* using a larger value will reduce latency but risks skipping a frame if
* drawing the stage takes too long.
*
* Since: 1.14
* Stability: unstable
*/
void
clutter_stage_set_sync_delay (ClutterStage *stage,
gint sync_delay)
{
g_return_if_fail (CLUTTER_IS_STAGE (stage));
stage->priv->sync_delay = sync_delay;
}
int64_t
clutter_stage_get_frame_counter (ClutterStage *stage)
{

6
clutter/clutter/clutter-stage.h
View File

@ -195,12 +195,6 @@ void clutter_stage_ensure_viewport (ClutterStage
CLUTTER_EXPORT
gboolean clutter_stage_is_redraw_queued_on_view (ClutterStage *stage,
ClutterStageView *view);
#ifdef CLUTTER_ENABLE_EXPERIMENTAL_API
CLUTTER_EXPORT
void clutter_stage_set_sync_delay (ClutterStage *stage,
#endif
CLUTTER_EXPORT
void clutter_stage_schedule_update (ClutterStage *stage);

2
src/compositor/compositor.c
View File

@ -548,8 +548,6 @@ meta_compositor_do_manage (MetaCompositor *compositor,
G_CALLBACK (on_presented),
compositor);
clutter_stage_set_sync_delay (CLUTTER_STAGE (stage), META_SYNC_DELAY);
priv->window_group = meta_window_group_new (display);
priv->top_window_group = meta_window_group_new (display);
priv->feedback_group = meta_window_group_new (display);