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Bug 783368 - Prefer the critical display port, when set, in basic tiled layers. r=bgirard

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If a critical display port is set, only validate content within it when using
basic tiled layers.
This commit is contained in:
Chris Lord
2012-11-21 19:16:51 +00:00
parent dd23190f15
commit 183d26900a
3 changed files with 48 additions and 17 deletions
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10
gfx/layers/basic/BasicLayerManager.cpp
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@@ -1311,10 +1311,12 @@ BasicShadowLayerManager::ProgressiveUpdateCallback(bool aHasPendingNewThebesCont
const gfx3DMatrix& rootTransform = GetRoot()->GetTransform();
float devPixelRatioX = 1 / rootTransform.GetXScale();
float devPixelRatioY = 1 / rootTransform.GetYScale();
gfx::Rect displayPort((metrics.mDisplayPort.x + metrics.mScrollOffset.x) * devPixelRatioX,
(metrics.mDisplayPort.y + metrics.mScrollOffset.y) * devPixelRatioY,
metrics.mDisplayPort.width * devPixelRatioX,
metrics.mDisplayPort.height * devPixelRatioY);
const gfx::Rect& metricsDisplayPort = metrics.mCriticalDisplayPort.IsEmpty() ?
metrics.mDisplayPort : metrics.mCriticalDisplayPort;
gfx::Rect displayPort((metricsDisplayPort.x + metrics.mScrollOffset.x) * devPixelRatioX,
(metricsDisplayPort.y + metrics.mScrollOffset.y) * devPixelRatioY,
metricsDisplayPort.width * devPixelRatioX,
metricsDisplayPort.height * devPixelRatioY);
return AndroidBridge::Bridge()->ProgressiveUpdateCallback(
aHasPendingNewThebesContent, displayPort, devPixelRatioX,