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Bug 1148871 - Only apply checkerboarding background color to opaque layers. r=botond

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This commit is contained in:
Markus Stange 2015-03-29 01:26:08 -04:00
parent 3ffe108a95
commit f2a2b69983
1 changed files with 2 additions and 1 deletions
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3
gfx/layers/composite/ContainerLayerComposite.cpp
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@ -344,7 +344,8 @@ RenderLayers(ContainerT* aContainer,
Layer* layer = layerToRender->GetLayer();
gfxRGBA color;
if (LayerHasCheckerboardingAPZC(layer, &color)) {
if ((layer->GetContentFlags() & Layer::CONTENT_OPAQUE) &&
LayerHasCheckerboardingAPZC(layer, &color)) {
// Ideally we would want to intersect the checkerboard region from the APZ with the layer bounds
// and only fill in that area. However the layer bounds takes into account the base translation
// for the painted layer whereas the checkerboard region does not. One does not simply