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clutter/stage: Avoid queueing stage updates when they're already queued

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We're using clutter_stage_schedule_update() now from ClutterActor to kick
off the stage updating machinery when a redraw needs to happen.

This introduced a bunch of unnecessary calls to
clutter_stage_schedule_update() and thus
clutter_stage_view_schedule_update() when multiple actors request redraws
during the same stage update cycle, which is a very common case.

Cut off all those unnecessary calls by bailing out in
clutter_stage_schedule_update() when updates are already queued.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2679>
This commit is contained in:
Jonas Dreßler 2023-05-24 20:09:25 +02:00 committed by Marge Bot
parent d2d730ec0b
commit 261f516af4
3 changed files with 22 additions and 12 deletions
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2
clutter/clutter/clutter-stage-private.h
View File

@ -60,7 +60,7 @@ void clutter_stage_emit_before_paint (ClutterStage
void clutter_stage_emit_after_paint (ClutterStage *stage,
ClutterStageView *view,
ClutterFrame *frame);
void clutter_stage_emit_after_update (ClutterStage *stage,
void clutter_stage_after_update (ClutterStage *stage,
ClutterStageView *view,
ClutterFrame *frame);

2
clutter/clutter/clutter-stage-view.c
View File

@ -1280,7 +1280,7 @@ handle_frame_clock_frame (ClutterFrameClock *frame_clock,
priv->needs_update_devices = FALSE;
_clutter_run_repaint_functions (CLUTTER_REPAINT_FLAGS_POST_PAINT);
clutter_stage_emit_after_update (stage, view, frame);
clutter_stage_after_update (stage, view, frame);
return clutter_frame_get_result (frame);
}

22
clutter/clutter/clutter-stage.c
View File

@ -137,6 +137,8 @@ struct _ClutterStagePrivate
int update_freeze_count;
gboolean update_scheduled;
GHashTable *pointer_devices;
GHashTable *touch_sequences;
@ -518,11 +520,15 @@ clutter_stage_emit_after_paint (ClutterStage *stage,
}
void
clutter_stage_emit_after_update (ClutterStage *stage,
clutter_stage_after_update (ClutterStage *stage,
ClutterStageView *view,
ClutterFrame *frame)
{
ClutterStagePrivate *priv = stage->priv;
g_signal_emit (stage, stage_signals[AFTER_UPDATE], 0, view, frame);
priv->update_scheduled = FALSE;
}
static gboolean
@ -633,18 +639,14 @@ _clutter_stage_queue_event (ClutterStage *stage,
gboolean copy_event)
{
ClutterStagePrivate *priv;
gboolean first_event;
g_return_if_fail (CLUTTER_IS_STAGE (stage));
priv = stage->priv;
first_event = priv->event_queue->length == 0;
g_queue_push_tail (priv->event_queue,
copy_event ? clutter_event_copy (event) : event);
if (first_event)
clutter_stage_schedule_update (stage);
}
@ -778,7 +780,6 @@ clutter_stage_queue_actor_relayout (ClutterStage *stage,
{
ClutterStagePrivate *priv = stage->priv;
if (priv->pending_relayouts == NULL)
clutter_stage_schedule_update (stage);
priv->pending_relayouts = g_slist_prepend (priv->pending_relayouts,
@ -2452,12 +2453,19 @@ _clutter_stage_get_default_window (void)
void
clutter_stage_schedule_update (ClutterStage *stage)
{
ClutterStagePrivate *priv = stage->priv;
ClutterStageWindow *stage_window;
gboolean first_event;
GList *l;
if (CLUTTER_ACTOR_IN_DESTRUCTION (stage))
return;
first_event = priv->event_queue->length == 0;
if (priv->update_scheduled && !first_event)
return;
stage_window = _clutter_stage_get_window (stage);
if (stage_window == NULL)
return;
@ -2468,6 +2476,8 @@ clutter_stage_schedule_update (ClutterStage *stage)
clutter_stage_view_schedule_update (view);
}
priv->update_scheduled = TRUE;
}
ClutterPaintVolume *