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scene: prefer calling mapToGlobal just once 

It's the same top mapToGlobal()+operator& than the other way around and
we get to skip 1 call.
This path is the most common so we better save it.

(cherry picked from commit f558115def)
icc-effect-5.20.5
Aleix Pol 2020-09-29 16:16:59 +02:00 committed by Vlad Zahorodnii
parent 6e56d5741d
commit ba2aab2f04
1 changed files with 3 additions and 3 deletions
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6
scene.cpp
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@ -291,9 +291,9 @@ void Scene::paintSimpleScreen(int orig_mask, const QRegion &region)
} else if (toplevel->hasAlpha() && toplevel->opacity() == 1.0) {
const WindowPixmap *windowPixmap = window->windowPixmap<WindowPixmap>();
if (windowPixmap) {
const QRegion shape = windowPixmap->mapToGlobal(windowPixmap->shape());
const QRegion opaque = windowPixmap->mapToGlobal(windowPixmap->opaque());
data.clip = shape & opaque;
const QRegion shape = windowPixmap->shape();
const QRegion opaque = windowPixmap->opaque();
data.clip = windowPixmap->mapToGlobal(shape & opaque);
}
} else {
data.clip = QRegion();