зеркало из https://github.com/mozilla/gecko-dev.git
Backed out changeset 94302209286e (bug 1321412)
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Родитель
fe2223eaca
Коммит
9717b63320
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@ -2209,9 +2209,10 @@ nsIFrame::BuildDisplayListForStackingContext(nsDisplayListBuilder* aBuilder,
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if (isTransformed) {
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const nsRect overflow = GetVisualOverflowRectRelativeToSelf();
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nsDisplayTransform::PrerenderDecision decision =
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nsDisplayTransform::ShouldPrerenderTransformedContent(aBuilder, this, &dirtyRect);
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nsDisplayTransform::ShouldPrerenderTransformedContent(aBuilder, this);
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switch (decision) {
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case nsDisplayTransform::FullPrerender:
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dirtyRect = overflow;
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allowAsyncAnimation = true;
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break;
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case nsDisplayTransform::NoPrerender:
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@ -6228,8 +6228,7 @@ nsDisplayTransform::CanUseAsyncAnimations(nsDisplayListBuilder* aBuilder)
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/* static */ auto
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nsDisplayTransform::ShouldPrerenderTransformedContent(nsDisplayListBuilder* aBuilder,
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nsIFrame* aFrame,
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nsRect* aDirtyRect) -> PrerenderDecision
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nsIFrame* aFrame) -> PrerenderDecision
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{
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// Elements whose transform has been modified recently, or which
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// have a compositor-animated transform, can be prerendered. An element
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@ -6252,14 +6251,13 @@ nsDisplayTransform::ShouldPrerenderTransformedContent(nsDisplayListBuilder* aBui
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// for shadows, borders, etc.
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refSize += nsSize(refSize.width / 8, refSize.height / 8);
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gfxSize scale = nsLayoutUtils::GetTransformToAncestorScale(aFrame);
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nsRect overflow = aFrame->GetVisualOverflowRectRelativeToSelf();
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nsSize frameSize = nsSize(overflow.Size().width * scale.width,
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overflow.Size().height * scale.height);
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nsSize frameSize = nsSize(
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aFrame->GetVisualOverflowRectRelativeToSelf().Size().width * scale.width,
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aFrame->GetVisualOverflowRectRelativeToSelf().Size().height * scale.height);
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nscoord maxInAppUnits = nscoord_MAX;
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if (frameSize <= refSize) {
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maxInAppUnits = aFrame->PresContext()->DevPixelsToAppUnits(4096);
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if (frameSize <= nsSize(maxInAppUnits, maxInAppUnits)) {
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*aDirtyRect = overflow;
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return FullPrerender;
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}
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}
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@ -4283,11 +4283,9 @@ public:
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/**
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* Return FullPrerender when we should try to prerender the entire contents of the
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* transformed frame even when it's not completely visible (yet).
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* |aDirtyRect| is updated to the area that should be prerendered.
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*/
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static PrerenderDecision ShouldPrerenderTransformedContent(nsDisplayListBuilder* aBuilder,
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nsIFrame* aFrame,
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nsRect* aDirtyRect);
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nsIFrame* aFrame);
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bool CanUseAsyncAnimations(nsDisplayListBuilder* aBuilder) override;
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bool MayBeAnimated(nsDisplayListBuilder* aBuilder);
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