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cullable: Reset the culling state instead of skipping the traversal

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When we traversed down to reset the culling state, previously we
would just skip any actors that wanted culling. In order to properly
reset the unobscured_region before painting, we need to traverse down
to these places as well. Do this by calling cull_out with NULL regions
for both arguments, and adapt existing cull_out implementations to
match.

https://bugzilla.gnome.org/show_bug.cgi?id=720631
This commit is contained in:
Jasper St. Pierre 2014-02-05 13:20:18 -05:00
parent d3c2607e53
commit b580ccfe56
5 changed files with 40 additions and 39 deletions
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40
src/compositor/meta-cullable.c
View File

@ -70,10 +70,16 @@ meta_cullable_cull_out_children (MetaCullable *cullable,
while (clutter_actor_iter_prev (&iter, &child))
{
float x, y;
gboolean needs_culling;
if (!CLUTTER_ACTOR_IS_VISIBLE (child))
if (!META_IS_CULLABLE (child))
continue;
needs_culling = (unobscured_region != NULL && clip_region != NULL);
if (needs_culling && !CLUTTER_ACTOR_IS_VISIBLE (child))
needs_culling = FALSE;
/* If an actor has effects applied, then that can change the area
* it paints and the opacity, so we no longer can figure out what
* portion of the actor is obscured and what portion of the screen
@ -90,25 +96,29 @@ meta_cullable_cull_out_children (MetaCullable *cullable,
* as well for the same reason, but omitted for simplicity in the
* hopes that no-one will do that.
*/
if (clutter_actor_has_effects (child))
continue;
if (needs_culling && clutter_actor_has_effects (child))
needs_culling = FALSE;
if (!META_IS_CULLABLE (child))
continue;
if (needs_culling && !meta_actor_is_untransformed (child, NULL, NULL))
needs_culling = FALSE;
if (!meta_actor_is_untransformed (child, NULL, NULL))
continue;
if (needs_culling)
{
clutter_actor_get_position (child, &x, &y);
clutter_actor_get_position (child, &x, &y);
/* Temporarily move to the coordinate system of the actor */
cairo_region_translate (unobscured_region, - x, - y);
cairo_region_translate (clip_region, - x, - y);
/* Temporarily move to the coordinate system of the actor */
cairo_region_translate (unobscured_region, - x, - y);
cairo_region_translate (clip_region, - x, - y);
meta_cullable_cull_out (META_CULLABLE (child), unobscured_region, clip_region);
meta_cullable_cull_out (META_CULLABLE (child), unobscured_region, clip_region);
cairo_region_translate (unobscured_region, x, y);
cairo_region_translate (clip_region, x, y);
cairo_region_translate (unobscured_region, x, y);
cairo_region_translate (clip_region, x, y);
}
else
{
meta_cullable_cull_out (META_CULLABLE (child), NULL, NULL);
}
}
}

6
src/compositor/meta-shaped-texture.c
View File

@ -857,8 +857,10 @@ meta_shaped_texture_cull_out (MetaCullable *cullable,
{
if (priv->opaque_region)
{
cairo_region_subtract (unobscured_region, priv->opaque_region);
cairo_region_subtract (clip_region, priv->opaque_region);
if (unobscured_region)
cairo_region_subtract (unobscured_region, priv->opaque_region);
if (clip_region)
cairo_region_subtract (clip_region, priv->opaque_region);
}
}
}

3
src/compositor/meta-window-actor-private.h
View File

@ -55,9 +55,6 @@ void meta_window_actor_set_updates_frozen (MetaWindowActor *self,
void meta_window_actor_queue_frame_drawn (MetaWindowActor *self,
gboolean no_delay_frame);
void meta_window_actor_set_unobscured_region (MetaWindowActor *self,
cairo_region_t *unobscured_region);
void meta_window_actor_effect_completed (MetaWindowActor *actor,
gulong event);

16
src/compositor/meta-window-actor.c
View File

@ -1650,7 +1650,7 @@ see_region (cairo_region_t *region,
* Provides a hint as to what areas of the window need to queue
* redraws when damaged. Regions not in @unobscured_region are completely obscured.
*/
void
static void
meta_window_actor_set_unobscured_region (MetaWindowActor *self,
cairo_region_t *unobscured_region)
{
@ -1687,13 +1687,19 @@ meta_window_actor_set_clip_region_beneath (MetaWindowActor *self,
if (appears_focused ? priv->focused_shadow : priv->unfocused_shadow)
{
g_clear_pointer (&priv->shadow_clip, cairo_region_destroy);
priv->shadow_clip = cairo_region_copy (beneath_region);
if (clip_shadow_under_window (self))
if (beneath_region)
{
cairo_region_t *frame_bounds = meta_window_get_frame_bounds (priv->window);
cairo_region_subtract (priv->shadow_clip, frame_bounds);
priv->shadow_clip = cairo_region_copy (beneath_region);
if (clip_shadow_under_window (self))
{
cairo_region_t *frame_bounds = meta_window_get_frame_bounds (priv->window);
cairo_region_subtract (priv->shadow_clip, frame_bounds);
}
}
else
priv->shadow_clip = NULL;
}
}

14
src/compositor/meta-window-group.c
View File

@ -115,8 +115,6 @@ meta_window_group_paint (ClutterActor *actor)
{
cairo_region_t *clip_region;
cairo_region_t *unobscured_region;
ClutterActorIter iter;
ClutterActor *child;
cairo_rectangle_int_t visible_rect, clip_rect;
int paint_x_offset, paint_y_offset;
int paint_x_origin, paint_y_origin;
@ -126,18 +124,6 @@ meta_window_group_paint (ClutterActor *actor)
ClutterActor *stage = clutter_actor_get_stage (actor);
MetaCompScreen *info = meta_screen_get_compositor_data (window_group->screen);
/* Start off by treating all windows as completely unobscured, so damage anywhere
* in a window queues redraws, but confine it more below. */
clutter_actor_iter_init (&iter, actor);
while (clutter_actor_iter_next (&iter, &child))
{
if (META_IS_WINDOW_ACTOR (child))
{
MetaWindowActor *window_actor = META_WINDOW_ACTOR (child);
meta_window_actor_set_unobscured_region (window_actor, NULL);
}
}
/* Normally we expect an actor to be drawn at it's position on the screen.
* However, if we're inside the paint of a ClutterClone, that won't be the
* case and we need to compensate. We look at the position of the window