Merge "only clear FB when asked for the opaque layer" into klp-dev
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commit
0699350336
@ -1597,9 +1597,10 @@ void SurfaceFlinger::doComposeSurfaces(const sp<const DisplayDevice>& hw, const
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if (!clip.isEmpty()) {
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switch (cur->getCompositionType()) {
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case HWC_OVERLAY: {
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const Layer::State& state(layer->getDrawingState());
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if ((cur->getHints() & HWC_HINT_CLEAR_FB)
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&& i
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&& layer->isOpaque()
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&& layer->isOpaque() && (state.alpha == 0xFF)
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&& hasGlesComposition) {
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// never clear the very first layer since we're
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// guaranteed the FB is already cleared
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