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ClutterActor: Preserve valid paint volumes till the next relayout/repaint

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Cuts down approximately all paint volume calculations when there's
windows that redraw frequently, but don't move.

https://bugzilla.gnome.org/show_bug.cgi?id=782344


(cherry picked from commit 161d2540e6)
This commit is contained in:
Carlos Garnacho 2017-04-29 11:43:33 +00:00 committed by Marco Trevisan
parent 0b666dbeb2
commit 527f6ef835
1 changed files with 17 additions and 1 deletions
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18
clutter/clutter/clutter-actor.c
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@ -840,6 +840,7 @@ struct _ClutterActorPrivate
guint needs_compute_expand : 1;
guint needs_x_expand : 1;
guint needs_y_expand : 1;
guint needs_paint_volume_update : 1;
};
enum
@ -1504,6 +1505,8 @@ clutter_actor_real_map (ClutterActor *self)
CLUTTER_ACTOR_SET_FLAGS (self, CLUTTER_ACTOR_MAPPED);
self->priv->needs_paint_volume_update = TRUE;
stage = _clutter_actor_get_stage_internal (self);
priv->pick_id = _clutter_stage_acquire_pick_id (CLUTTER_STAGE (stage), self);
@ -2737,6 +2740,7 @@ clutter_actor_real_queue_relayout (ClutterActor *self)
priv->needs_width_request = TRUE;
priv->needs_height_request = TRUE;
priv->needs_allocation = TRUE;
priv->needs_paint_volume_update = TRUE;
/* reset the cached size requests */
memset (priv->width_requests, 0,
@ -8518,6 +8522,7 @@ clutter_actor_init (ClutterActor *self)
priv->needs_width_request = TRUE;
priv->needs_height_request = TRUE;
priv->needs_allocation = TRUE;
priv->needs_paint_volume_update = TRUE;
priv->cached_width_age = 1;
priv->cached_height_age = 1;
@ -10084,6 +10089,9 @@ clutter_actor_allocate (ClutterActor *self,
return;
}
if (CLUTTER_ACTOR_IS_MAPPED (self))
self->priv->needs_paint_volume_update = TRUE;
if (!stage_allocation_changed)
{
/* If the actor didn't move but needs_allocation is set, we just
@ -12972,6 +12980,9 @@ clutter_actor_add_child_internal (ClutterActor *self,
child->priv->needs_height_request = TRUE;
child->priv->needs_allocation = TRUE;
if (CLUTTER_ACTOR_IS_MAPPED (child))
child->priv->needs_paint_volume_update = TRUE;
/* we only queue a relayout here, because any possible
* redraw has already been queued either by show() or
* by our call to queue_redraw() above
@ -17514,11 +17525,16 @@ _clutter_actor_get_paint_volume_mutable (ClutterActor *self)
priv = self->priv;
if (priv->paint_volume_valid)
clutter_paint_volume_free (&priv->paint_volume);
{
if (!priv->needs_paint_volume_update)
return &priv->paint_volume;
clutter_paint_volume_free (&priv->paint_volume);
}
if (_clutter_actor_get_paint_volume_real (self, &priv->paint_volume))
{
priv->paint_volume_valid = TRUE;
priv->needs_paint_volume_update = FALSE;
return &priv->paint_volume;
}
else