ADHOC/replicant-frameworks_native
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ui freeze workaround: reenable triple buffering mode

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we're seeing UI freezes when window updates and
composition are separated. for now we workaround this
by always doing a composition after window updates on
vsync. triple buffering is reenabled for performance.

Change-Id: I693d705000b7452489bb0b4918fbeadb9879315c
This commit is contained in:
Mathias Agopian 2012-02-05 01:49:16 -08:00
parent c95dbdc236
commit 303d538bb0
4 changed files with 22 additions and 8 deletions
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1
services/surfaceflinger/Android.mk
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@ -32,6 +32,7 @@ ifeq ($(TARGET_BOARD_PLATFORM), omap3)
endif
ifeq ($(TARGET_BOARD_PLATFORM), omap4)
LOCAL_CFLAGS += -DHAS_CONTEXT_PRIORITY
LOCAL_CFLAGS += -DUSE_TRIPLE_BUFFERING
endif
ifeq ($(TARGET_BOARD_PLATFORM), s5pc110)
LOCAL_CFLAGS += -DHAS_CONTEXT_PRIORITY -DNEVER_DEFAULT_TO_ASYNC_MODE

5
services/surfaceflinger/Layer.cpp
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@ -98,7 +98,12 @@ void Layer::onFirstRef()
mSurfaceTexture = new SurfaceTextureLayer(mTextureName, this);
mSurfaceTexture->setFrameAvailableListener(new FrameQueuedListener(this));
mSurfaceTexture->setSynchronousMode(true);
#ifdef USE_TRIPLE_BUFFERING
#warning "using triple buffering"
mSurfaceTexture->setBufferCountServer(3);
#else
mSurfaceTexture->setBufferCountServer(2);
#endif
}
Layer::~Layer()

3
services/surfaceflinger/MessageQueue.cpp
View File

@ -133,7 +133,8 @@ status_t MessageQueue::postMessage(
}
void MessageQueue::invalidate() {
mHandler->signalInvalidate();
// mHandler->signalInvalidate();
mEvents->requestNextVsync();
}
void MessageQueue::refresh() {

21
services/surfaceflinger/SurfaceFlinger.cpp
View File

@ -403,7 +403,8 @@ bool SurfaceFlinger::threadLoop()
void SurfaceFlinger::onMessageReceived(int32_t what)
{
switch (what) {
case MessageQueue::INVALIDATE: {
case MessageQueue::REFRESH: {
// case MessageQueue::INVALIDATE: {
// check for transactions
if (CC_UNLIKELY(mConsoleSignals)) {
handleConsoleEvents();
@ -419,19 +420,25 @@ void SurfaceFlinger::onMessageReceived(int32_t what)
// post surfaces (if needed)
handlePageFlip();
signalRefresh();
} break;
// signalRefresh();
//
// } break;
//
// case MessageQueue::REFRESH: {
case MessageQueue::REFRESH: {
// NOTE: it is mandatory to call hw.compositionComplete()
// after handleRefresh()
const DisplayHardware& hw(graphicPlane(0).displayHardware());
handleRefresh();
const DisplayHardware& hw(graphicPlane(0).displayHardware());
// if (mDirtyRegion.isEmpty()) {
// return;
// }
if (CC_UNLIKELY(mHwWorkListDirty)) {
// build the h/w work list
handleWorkList();
}
if (CC_LIKELY(hw.canDraw())) {
// repaint the framebuffer (if needed)
handleRepaint();