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skip empty damages, reset damageRatio also when pixmaps are created

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This commit is contained in:
Thomas Lübking 2011-11-08 20:53:17 +01:00
parent 965feeb9f3
commit bdc3cc5564
1 changed files with 3 additions and 0 deletions
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3
composite.cpp
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@ -558,6 +558,7 @@ Pixmap Toplevel::createWindowPixmap()
assert(compositing());
if (unredirected())
return None;
damageRatio = 0.0;
grabXServer();
KXErrorHandler err;
Pixmap pix = XCompositeNameWindowPixmap(display(), frameId());
@ -667,6 +668,8 @@ void Toplevel::addDamage(int x, int y, int w, int h)
// resizing the decoration may lag behind a bit and when shrinking there
// may be a damage event coming with size larger than the current window size
r &= rect();
if (r.isEmpty())
return;
damage_region += r;
int damageArea = 0;
foreach (const QRect &r2, damage_region.rects())