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SurfaceFlinger: fix isOpaque check in lockPageFlip

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This change fixes an issue where Layer::isOpaque was being called in
lockPageFlip to get the opaqueness for the new buffer before
mActiveBuffer was updated.

Bug: 5321313
Change-Id: Ibb5d7d3f4e9a2b1448e117a484a0d9f9ca5fc9de
This commit is contained in:
Jamie Gennis 2011-09-14 18:23:37 -07:00
parent e2b4488cfe
commit 945d291699
1 changed files with 10 additions and 10 deletions
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20
services/surfaceflinger/Layer.cpp
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@ -404,7 +404,9 @@ bool Layer::isCropped() const {
void Layer::lockPageFlip(bool& recomputeVisibleRegions)
{
if (mQueuedFrames > 0) {
// Capture the old state of the layer for comparisons later
const bool oldOpacity = isOpaque();
sp<GraphicBuffer> oldActiveBuffer = mActiveBuffer;
// signal another event if we have more frames pending
if (android_atomic_dec(&mQueuedFrames) > 1) {
@ -417,7 +419,8 @@ void Layer::lockPageFlip(bool& recomputeVisibleRegions)
return;
}
sp<GraphicBuffer> newFrontBuffer(mSurfaceTexture->getCurrentBuffer());
// update the active buffer
mActiveBuffer = mSurfaceTexture->getCurrentBuffer();
const Rect crop(mSurfaceTexture->getCurrentCrop());
const uint32_t transform(mSurfaceTexture->getCurrentTransform());
@ -439,16 +442,16 @@ void Layer::lockPageFlip(bool& recomputeVisibleRegions)
mFlinger->invalidateHwcGeometry();
}
uint32_t bufWidth = newFrontBuffer->getWidth();
uint32_t bufHeight = newFrontBuffer->getHeight();
if (mActiveBuffer != NULL) {
if (bufWidth != uint32_t(mActiveBuffer->width) ||
bufHeight != uint32_t(mActiveBuffer->height)) {
uint32_t bufWidth = mActiveBuffer->getWidth();
uint32_t bufHeight = mActiveBuffer->getHeight();
if (oldActiveBuffer != NULL) {
if (bufWidth != uint32_t(oldActiveBuffer->width) ||
bufHeight != uint32_t(oldActiveBuffer->height)) {
mFlinger->invalidateHwcGeometry();
}
}
mCurrentOpacity = getOpacityForFormat(newFrontBuffer->format);
mCurrentOpacity = getOpacityForFormat(mActiveBuffer->format);
if (oldOpacity != isOpaque()) {
recomputeVisibleRegions = true;
}
@ -462,9 +465,6 @@ void Layer::lockPageFlip(bool& recomputeVisibleRegions)
// FIXME: mPostedDirtyRegion = dirty & bounds
mPostedDirtyRegion.set(front.w, front.h);
// update active buffer
mActiveBuffer = newFrontBuffer;
if ((front.w != front.requested_w) ||
(front.h != front.requested_h))
{