background-actor: Add a simple paint volume
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.
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1 changed files with 8 additions and 0 deletions
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@ -403,6 +403,13 @@ paint_clipped_rectangle (CoglFramebuffer *fb,
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tx1, ty1, tx2, ty2);
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}
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static gboolean
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meta_background_actor_get_paint_volume (ClutterActor *actor,
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ClutterPaintVolume *volume)
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{
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return clutter_paint_volume_set_from_allocation (volume, actor);
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}
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static void
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meta_background_actor_paint (ClutterActor *actor)
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{
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@ -549,6 +556,7 @@ meta_background_actor_class_init (MetaBackgroundActorClass *klass)
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actor_class->get_preferred_width = meta_background_actor_get_preferred_width;
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actor_class->get_preferred_height = meta_background_actor_get_preferred_height;
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actor_class->get_paint_volume = meta_background_actor_get_paint_volume;
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actor_class->paint = meta_background_actor_paint;
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param_spec = g_param_spec_object ("meta-screen",
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