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Bug 796182; fix invalidation on Mac with OMTC; r=cjones

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This commit is contained in:
Nicholas Cameron 2012-10-04 20:45:48 +13:00
parent dd644b20fe
commit 061a81e84d
2 changed files with 8 additions and 7 deletions
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14
gfx/layers/basic/BasicThebesLayer.cpp
View File

@ -330,7 +330,14 @@ BasicShadowableThebesLayer::SetBackBufferAndAttrs(const OptionalThebesBuffer& aB
mFrontAndBackBufferDiffer = true;
mROFrontBuffer = aReadOnlyFrontBuffer;
mFrontUpdatedRegion = aFrontUpdatedRegion;
mFrontValidRegion = aValidRegion;
if (OptionalThebesBuffer::Tnull_t == mROFrontBuffer.type()) {
// We didn't get back a read-only ref to our old back buffer (the
// parent's new front buffer). If the parent is pushing updates
// to a texture it owns, then we probably got back the same buffer
// we pushed in the update and all is well. If not, ...
mValidRegion = aValidRegion;
}
}
void
@ -360,11 +367,6 @@ BasicShadowableThebesLayer::SyncFrontBufferToBackBuffer()
}
if (OptionalThebesBuffer::Tnull_t == mROFrontBuffer.type()) {
// We didn't get back a read-only ref to our old back buffer (the
// parent's new front buffer). If the parent is pushing updates
// to a texture it owns, then we probably got back the same buffer
// we pushed in the update and all is well. If not, ...
mValidRegion = mFrontValidRegion;
mBuffer.SetBackingBuffer(backBuffer, mBackBufferRect, mBackBufferRectRotation);
return;
}

1
gfx/layers/basic/BasicThebesLayer.h
View File

@ -191,7 +191,6 @@ private:
bool mIsNewBuffer;
OptionalThebesBuffer mROFrontBuffer;
nsIntRegion mFrontUpdatedRegion;
nsIntRegion mFrontValidRegion;
bool mFrontAndBackBufferDiffer;
};