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window-actor: Speed up mask creation

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Due to a conditional error, meta_region_builder_add_rectangle was called
on every single blank pixel, rather than at the end of spans. With the new
rename, it's fairly clear to see the error. Fix the check to ensure that
we no longer make extraneous calls to meta_region_builder_add_rectangle.

https://bugzilla.gnome.org/show_bug.cgi?id=691874
This commit is contained in:
Jasper St. Pierre 2013-01-16 10:16:58 -05:00
parent 95f3bb3b81
commit 5d12f00b3b
1 changed files with 1 additions and 1 deletions
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2
src/compositor/meta-window-actor.c
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@ -2117,7 +2117,7 @@ scan_visible_region (guchar *mask_data,
while (mask_data[y * stride + x2] == 255 && x2 < (rect.x + rect.width)) while (mask_data[y * stride + x2] == 255 && x2 < (rect.x + rect.width))
x2++; x2++;
if (x2 > 0) if (x2 > x)
{ {
meta_region_builder_add_rectangle (&builder, x, y, x2 - x, 1); meta_region_builder_add_rectangle (&builder, x, y, x2 - x, 1);
x = x2; x = x2;