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Bug 992486 - Part 4: Make ClientThebesLayer use multiple draws. r=roc

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This commit is contained in:
Matt Woodrow 2014-04-09 21:15:18 +12:00
parent 85f537988a
commit 4fb665e081
1 changed files with 4 additions and 9 deletions
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13
gfx/layers/client/ClientThebesLayer.cpp
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@ -40,7 +40,7 @@ ClientThebesLayer::PaintThebes()
mContentClient->PrepareFrame();
uint32_t flags = 0;
uint32_t flags = RotatedContentBuffer::PAINT_CAN_DRAW_ROTATED;
#ifndef MOZ_WIDGET_ANDROID
if (ClientManager()->CompositorMightResample()) {
flags |= RotatedContentBuffer::PAINT_WILL_RESAMPLE;
@ -68,14 +68,15 @@ ClientThebesLayer::PaintThebes()
GetEffectiveVisibleRegion());
bool didUpdate = false;
if (DrawTarget* target = mContentClient->BorrowDrawTargetForPainting(state)) {
RotatedContentBuffer::DrawIterator iter;
while (DrawTarget* target = mContentClient->BorrowDrawTargetForPainting(state, &iter)) {
SetAntialiasingFlags(this, target);
nsRefPtr<gfxContext> ctx = gfxContext::ContextForDrawTarget(target);
ClientManager()->GetThebesLayerCallback()(this,
ctx,
state.mRegionToDraw,
iter.mDrawRegion,
state.mClip,
state.mRegionToInvalidate,
ClientManager()->GetThebesLayerCallbackData());
@ -83,12 +84,6 @@ ClientThebesLayer::PaintThebes()
ctx = nullptr;
mContentClient->ReturnDrawTargetToBuffer(target);
didUpdate = true;
} else {
// It's possible that state.mRegionToInvalidate is nonempty here,
// if we are shrinking the valid region to nothing. So use mRegionToDraw
// instead.
NS_WARN_IF_FALSE(state.mRegionToDraw.IsEmpty(),
"No context when we have something to draw, resource exhaustion?");
}
if (didUpdate) {