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actor: Also recompute paint volume if we recently dropped effects

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Otherwise we'll be stuck with the same paint volume on the last
frame of the given effect, which could be wrong.

(cherry picked from commit a8a3c1017f)
This commit is contained in:
Sam Spilsbury 2018-09-02 22:17:43 +08:00 committed by Marco Trevisan
parent 075bfc4e11
commit 037d9915d5
1 changed files with 13 additions and 2 deletions
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15
clutter/clutter/clutter-actor.c
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@ -841,6 +841,7 @@ struct _ClutterActorPrivate
guint needs_x_expand : 1;
guint needs_y_expand : 1;
guint needs_paint_volume_update : 1;
guint had_effects_on_last_paint_volume_update : 1;
};
enum
@ -17557,23 +17558,33 @@ _clutter_actor_has_active_paint_volume_override_effects (ClutterActor *self)
static ClutterPaintVolume *
_clutter_actor_get_paint_volume_mutable (ClutterActor *self)
{
gboolean has_paint_volume_override_effects;
ClutterActorPrivate *priv;
priv = self->priv;
has_paint_volume_override_effects = _clutter_actor_has_active_paint_volume_override_effects (self);
if (priv->paint_volume_valid)
{
/* If effects are applied, the actor paint volume
* needs to be recomputed on each paint, since those
* paint volumes could change over the duration of the
* effect. */
* effect.
*
* We also need to update the paint volume if we went
* from having effects to not having effects on the last
* paint volume update. */
if (!priv->needs_paint_volume_update &&
priv->current_effect == NULL &&
!_clutter_actor_has_active_paint_volume_override_effects (self))
!has_paint_volume_override_effects &&
!priv->had_effects_on_last_paint_volume_update)
return &priv->paint_volume;
clutter_paint_volume_free (&priv->paint_volume);
}
priv->had_effects_on_last_paint_volume_update = has_paint_volume_override_effects;
if (_clutter_actor_get_paint_volume_real (self, &priv->paint_volume))
{
priv->paint_volume_valid = TRUE;