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shadow-factory: Optimize shadows entirely if clip region is empty

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If the clip region is empty, we don't need to check the 9 slices
separately, nothing will be painted anyway.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/698
This commit is contained in:
Carlos Garnacho 2019-01-27 15:42:55 +01:00
parent ddbdb5fa77
commit 2812338b7a
1 changed files with 3 additions and 0 deletions
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3
src/compositor/meta-shadow-factory.c
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@ -218,6 +218,9 @@ meta_shadow_paint (MetaShadow *shadow,
int n_x, n_y;
gboolean source_updated = FALSE;
if (clip && cairo_region_is_empty (clip))
return;
if (shadow->scale_width)
{
n_x = 3;