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Bug 1021248 - Update the low-res tiles even when not in risk of checkerboarding. r=Cwiiis

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This commit is contained in:
Kartikaya Gupta 2014-06-12 09:17:04 -04:00
parent 77f21e56c7
commit 8887e500a1
2 changed files with 2 additions and 21 deletions
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20
gfx/layers/client/TiledContentClient.cpp
View File

@ -120,8 +120,6 @@ TiledContentClient::UseTiledLayerBuffer(TiledBufferType aType)
}
SharedFrameMetricsHelper::SharedFrameMetricsHelper()
: mLastProgressiveUpdateWasLowPrecision(false)
, mProgressiveUpdateWasInDanger(false)
{
MOZ_COUNT_CTOR(SharedFrameMetricsHelper);
}
@ -165,17 +163,6 @@ SharedFrameMetricsHelper::UpdateFromCompositorFrameMetrics(
aCompositionBounds = ParentLayerRect(compositorMetrics.mCompositionBounds);
aZoom = compositorMetrics.GetZoomToParent();
// Reset the checkerboard risk flag when switching to low precision
// rendering.
if (aLowPrecision && !mLastProgressiveUpdateWasLowPrecision) {
// Skip low precision rendering until we're at risk of checkerboarding.
if (!mProgressiveUpdateWasInDanger) {
return true;
}
mProgressiveUpdateWasInDanger = false;
}
mLastProgressiveUpdateWasLowPrecision = aLowPrecision;
// Always abort updates if the resolution has changed. There's no use
// in drawing at the incorrect resolution.
if (!FuzzyEquals(compositorMetrics.GetZoom().scale, contentMetrics.GetZoom().scale)) {
@ -197,11 +184,8 @@ SharedFrameMetricsHelper::UpdateFromCompositorFrameMetrics(
// When not a low precision pass and the page is in danger of checker boarding
// abort update.
if (!aLowPrecision && !mProgressiveUpdateWasInDanger) {
if (AboutToCheckerboard(contentMetrics, compositorMetrics)) {
mProgressiveUpdateWasInDanger = true;
return true;
}
if (!aLowPrecision && AboutToCheckerboard(contentMetrics, compositorMetrics)) {
return true;
}
// Abort drawing stale low-precision content if there's a more recent

3
gfx/layers/client/TiledContentClient.h
View File

@ -342,9 +342,6 @@ public:
*/
bool AboutToCheckerboard(const FrameMetrics& aContentMetrics,
const FrameMetrics& aCompositorMetrics);
private:
bool mLastProgressiveUpdateWasLowPrecision;
bool mProgressiveUpdateWasInDanger;
};
/**