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background-content: Assume background clones are always transformed

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Because clones may not have identical geometry to their source actors.
So we can't use the geometry of the source actor to decide to take the
more optimized (more clipped) path.

Fixes: https://gitlab.gnome.org/GNOME/mutter/-/issues/1480
This commit is contained in:
Daniel van Vugt 2020-10-20 17:49:26 +08:00 committed by verdre
parent cc7c7fa015
commit a24b2f4b0f
1 changed files with 24 additions and 17 deletions
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41
src/compositor/meta-background-content.c
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@ -511,29 +511,36 @@ meta_background_content_paint_content (ClutterContent *content,
if ((self->clip_region && cairo_region_is_empty (self->clip_region)))
return;
clutter_actor_get_transformed_position (actor,
&transformed_x,
&transformed_y);
rect_within_stage.x = floorf (transformed_x);
rect_within_stage.y = floorf (transformed_y);
clutter_actor_get_transformed_size (actor,
&transformed_width,
&transformed_height);
rect_within_stage.width = roundf (transformed_width);
rect_within_stage.height = roundf (transformed_height);
clutter_actor_get_content_box (actor, &actor_box);
rect_within_actor.x = actor_box.x1;
rect_within_actor.y = actor_box.y1;
rect_within_actor.width = actor_box.x2 - actor_box.x1;
rect_within_actor.height = actor_box.y2 - actor_box.y1;
untransformed =
rect_within_actor.x == rect_within_stage.x &&
rect_within_actor.y == rect_within_stage.y &&
rect_within_actor.width == rect_within_stage.width &&
rect_within_actor.height == rect_within_stage.height;
if (clutter_actor_is_in_clone_paint (actor))
{
untransformed = FALSE;
}
else
{
clutter_actor_get_transformed_position (actor,
&transformed_x,
&transformed_y);
rect_within_stage.x = floorf (transformed_x);
rect_within_stage.y = floorf (transformed_y);
clutter_actor_get_transformed_size (actor,
&transformed_width,
&transformed_height);
rect_within_stage.width = roundf (transformed_width);
rect_within_stage.height = roundf (transformed_height);
untransformed =
rect_within_actor.x == rect_within_stage.x &&
rect_within_actor.y == rect_within_stage.y &&
rect_within_actor.width == rect_within_stage.width &&
rect_within_actor.height == rect_within_stage.height;
}
if (untransformed) /* actor and stage space are the same */
{