[mutter/gbsneto/pick-culling: 15/16] clutter/actor: Invalidate last paint volume on absolute geometry changes

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit b16d7961f61a529280ba0398b4de5a03a0f6df37
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Thu Oct 22 21:36:53 2020 -0300

    clutter/actor: Invalidate last paint volume on absolute geometry changes
    
    The last paint volume is in eye coordinates. When an actor changes
    any transform, all children potentially change their position in
    eye coordinates, and consequently, the last paint volume becomes
    invalid.
    
    Mark the last paint volume as invalid when the absolute geometry
    of an actor changes.
    
    https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1520

 clutter/clutter/clutter-actor.c | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/clutter/clutter/clutter-actor.c b/clutter/clutter/clutter-actor.c
index e1ff406b0a..bc048cbb38 100644
--- a/clutter/clutter/clutter-actor.c
+++ b/clutter/clutter/clutter-actor.c
@@ -2440,6 +2440,7 @@ clutter_actor_notify_if_geometry_changed (ClutterActor          *self,
 static void
 absolute_geometry_changed (ClutterActor *actor)
 {
+  actor->priv->last_paint_volume_valid = FALSE;
   queue_update_stage_views (actor);
 }