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background-actor: Add a simple paint volume

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Not having a paint volume causes every single paint to turn into
full-stage redraw, since otherwise culling won't properly work.

Since we don't paint outside of our allocation, just use the simple
default implementation, but also return TRUE inside it.
This commit is contained in:
Jasper St. Pierre 2014-09-03 11:07:22 -07:00
parent d4317ba1e4
commit 883c4a7b0f
1 changed files with 8 additions and 0 deletions
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8
src/compositor/meta-background-actor.c
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@ -403,6 +403,13 @@ paint_clipped_rectangle (CoglFramebuffer *fb,
tx1, ty1, tx2, ty2);
}
static gboolean
meta_background_actor_get_paint_volume (ClutterActor *actor,
ClutterPaintVolume *volume)
{
return clutter_paint_volume_set_from_allocation (volume, actor);
}
static void
meta_background_actor_paint (ClutterActor *actor)
{
@ -549,6 +556,7 @@ meta_background_actor_class_init (MetaBackgroundActorClass *klass)
actor_class->get_preferred_width = meta_background_actor_get_preferred_width;
actor_class->get_preferred_height = meta_background_actor_get_preferred_height;
actor_class->get_paint_volume = meta_background_actor_get_paint_volume;
actor_class->paint = meta_background_actor_paint;
param_spec = g_param_spec_object ("meta-screen",