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Commit 9b4b1180 authored by Dave Burke's avatar Dave Burke Committed by Android Git Automerger
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am 06993503: Merge "only clear FB when asked for the opaque layer" into klp-dev 

* commit '06993503':
  only clear FB when asked for the opaque layer
parents f3fa0712 06993503

services/surfaceflinger/SurfaceFlinger.cpp

+2 −1
Original line number Diff line number Diff line
@@ -1597,9 +1597,10 @@ void SurfaceFlinger::doComposeSurfaces(const sp<const DisplayDevice>& hw, const 
            if (!clip.isEmpty()) {

                switch (cur->getCompositionType()) {

                    case HWC_OVERLAY: {

                        const Layer::State& state(layer->getDrawingState());

                        if ((cur->getHints() & HWC_HINT_CLEAR_FB)

                                && i

                                && layer->isOpaque()

                                && layer->isOpaque() && (state.alpha == 0xFF)

                                && hasGlesComposition) {

                            // never clear the very first layer since we're

                            // guaranteed the FB is already cleared