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clutter/stage: Only add paint volumes of mapped actors to stage clip

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Right now we damage the stage even if an actor is not mapped, for
example in the overview.

Stop doing so, reducing over-paint significantly in some situations.
Clones will still do stage damage on their own.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2035>
(cherry picked from commit 136caca5d5)
This commit is contained in:
Robert Mader 2021-10-03 21:17:49 +02:00 committed by Florian Müllner
parent c33ca49dfc
commit 7f9defb444
1 changed files with 31 additions and 27 deletions
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58
clutter/clutter/clutter-stage.c
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@ -2849,37 +2849,41 @@ clutter_stage_maybe_finish_queue_redraws (ClutterStage *stage)
{
ClutterActor *redraw_actor = key;
QueueRedrawEntry *entry = value;
ClutterPaintVolume old_actor_pv, new_actor_pv;
g_hash_table_iter_steal (&iter);
_clutter_paint_volume_init_static (&old_actor_pv, NULL);
_clutter_paint_volume_init_static (&new_actor_pv, NULL);
if (clutter_actor_is_mapped (redraw_actor))
{
ClutterPaintVolume old_actor_pv, new_actor_pv;
if (entry->has_clip)
{
add_to_stage_clip (stage, &entry->clip);
}
else if (clutter_actor_get_redraw_clip (redraw_actor,
&old_actor_pv,
&new_actor_pv))
{
/* Add both the old paint volume of the actor (which is
* currently visible on the screen) and the new paint volume
* (which will be visible on the screen after this redraw)
* to the redraw clip.
* The former we do to ensure the old texture on the screen
* will be fully painted over in case the actor was moved.
*/
add_to_stage_clip (stage, &old_actor_pv);
add_to_stage_clip (stage, &new_actor_pv);
}
else
{
/* If there's no clip we can use, we have to trigger an
* unclipped full stage redraw.
*/
add_to_stage_clip (stage, NULL);
_clutter_paint_volume_init_static (&old_actor_pv, NULL);
_clutter_paint_volume_init_static (&new_actor_pv, NULL);
if (entry->has_clip)
{
add_to_stage_clip (stage, &entry->clip);
}
else if (clutter_actor_get_redraw_clip (redraw_actor,
&old_actor_pv,
&new_actor_pv))
{
/* Add both the old paint volume of the actor (which is
* currently visible on the screen) and the new paint volume
* (which will be visible on the screen after this redraw)
* to the redraw clip.
* The former we do to ensure the old texture on the screen
* will be fully painted over in case the actor was moved.
*/
add_to_stage_clip (stage, &old_actor_pv);
add_to_stage_clip (stage, &new_actor_pv);
}
else
{
/* If there's no clip we can use, we have to trigger an
* unclipped full stage redraw.
*/
add_to_stage_clip (stage, NULL);
}
}
g_object_unref (redraw_actor);