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surface-actor: Move unobscured_region processing here

Browse Source 
https://bugzilla.gnome.org/show_bug.cgi?id=720631
This commit is contained in:
Jasper St. Pierre
2013-12-06 11:57:40 -05:00
parent 0e5f365d55
commit a0fe392665
6 changed files with 116 additions and 91 deletions
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105
src/compositor/meta-surface-actor.c
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@ -24,6 +24,9 @@ struct _MetaSurfaceActorPrivate
{
MetaShapedTexture *texture;
MetaWaylandBuffer *buffer;
/* The region that is visible, used to optimize out redraws */
cairo_region_t *unobscured_region;
};
static void cullable_iface_init (MetaCullableInterface *iface);
@ -31,23 +34,96 @@ static void cullable_iface_init (MetaCullableInterface *iface);
G_DEFINE_TYPE_WITH_CODE (MetaSurfaceActor, meta_surface_actor, CLUTTER_TYPE_ACTOR,
G_IMPLEMENT_INTERFACE (META_TYPE_CULLABLE, cullable_iface_init));
static gboolean
meta_surface_actor_get_paint_volume (ClutterActor *actor,
ClutterPaintVolume *volume)
{
MetaSurfaceActor *self = META_SURFACE_ACTOR (actor);
MetaSurfaceActorPrivate *priv = self->priv;
if (!CLUTTER_ACTOR_CLASS (meta_surface_actor_parent_class)->get_paint_volume (actor, volume))
return FALSE;
if (priv->unobscured_region)
{
ClutterVertex origin;
cairo_rectangle_int_t bounds, unobscured_bounds;
/* I hate ClutterPaintVolume so much... */
clutter_paint_volume_get_origin (volume, &origin);
bounds.x = origin.x;
bounds.y = origin.y;
bounds.width = clutter_paint_volume_get_width (volume);
bounds.height = clutter_paint_volume_get_height (volume);
cairo_region_get_extents (priv->unobscured_region, &unobscured_bounds);
gdk_rectangle_intersect (&bounds, &unobscured_bounds, &bounds);
origin.x = bounds.x;
origin.y = bounds.y;
clutter_paint_volume_set_origin (volume, &origin);
clutter_paint_volume_set_width (volume, bounds.width);
clutter_paint_volume_set_height (volume, bounds.height);
}
return TRUE;
}
static void
meta_surface_actor_dispose (GObject *object)
{
MetaSurfaceActor *self = META_SURFACE_ACTOR (object);
MetaSurfaceActorPrivate *priv = self->priv;
g_clear_pointer (&priv->unobscured_region, cairo_region_destroy);
G_OBJECT_CLASS (meta_surface_actor_parent_class)->dispose (object);
}
static void
meta_surface_actor_class_init (MetaSurfaceActorClass *klass)
{
ClutterActorClass *actor_class = CLUTTER_ACTOR_CLASS (klass);
GObjectClass *object_class = G_OBJECT_CLASS (klass);
actor_class->get_paint_volume = meta_surface_actor_get_paint_volume;
object_class->dispose = meta_surface_actor_dispose;
g_type_class_add_private (klass, sizeof (MetaSurfaceActorPrivate));
}
static void
set_unobscured_region (MetaSurfaceActor *self,
cairo_region_t *unobscured_region)
{
MetaSurfaceActorPrivate *priv = self->priv;
if (priv->unobscured_region)
cairo_region_destroy (priv->unobscured_region);
if (unobscured_region)
priv->unobscured_region = cairo_region_copy (unobscured_region);
else
priv->unobscured_region = NULL;
}
static void
meta_surface_actor_cull_out (MetaCullable *cullable,
cairo_region_t *unobscured_region,
cairo_region_t *clip_region)
{
MetaSurfaceActor *self = META_SURFACE_ACTOR (cullable);
set_unobscured_region (self, unobscured_region);
meta_cullable_cull_out_children (cullable, unobscured_region, clip_region);
}
static void
meta_surface_actor_reset_culling (MetaCullable *cullable)
{
MetaSurfaceActor *self = META_SURFACE_ACTOR (cullable);
set_unobscured_region (self, NULL);
meta_cullable_reset_culling_children (cullable);
}
@ -108,9 +184,16 @@ update_area (MetaSurfaceActor *self,
}
}
static cairo_region_t *
effective_unobscured_region (MetaSurfaceActor *self)
{
MetaSurfaceActorPrivate *priv = self->priv;
return clutter_actor_has_mapped_clones (CLUTTER_ACTOR (self)) ? NULL : priv->unobscured_region;
}
gboolean
meta_surface_actor_damage_all (MetaSurfaceActor *self,
cairo_region_t *unobscured_region)
meta_surface_actor_damage_all (MetaSurfaceActor *self)
{
MetaSurfaceActorPrivate *priv = self->priv;
CoglTexture *texture = meta_shaped_texture_get_texture (priv->texture);
@ -120,7 +203,7 @@ meta_surface_actor_damage_all (MetaSurfaceActor *self,
0, 0,
cogl_texture_get_width (texture),
cogl_texture_get_height (texture),
unobscured_region);
effective_unobscured_region (self));
}
gboolean
@ -128,15 +211,25 @@ meta_surface_actor_damage_area (MetaSurfaceActor *self,
int x,
int y,
int width,
int height,
cairo_region_t *unobscured_region)
int height)
{
MetaSurfaceActorPrivate *priv = self->priv;
update_area (self, x, y, width, height);
return meta_shaped_texture_update_area (priv->texture,
x, y, width, height,
unobscured_region);
effective_unobscured_region (self));
}
gboolean
meta_surface_actor_is_obscured (MetaSurfaceActor *self)
{
MetaSurfaceActorPrivate *priv = self->priv;
if (priv->unobscured_region)
return cairo_region_is_empty (priv->unobscured_region);
else
return FALSE;
}
void