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BufferQueue: Hook up IProducerListener

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Actually call the producer listener's callback during
IGraphicBufferConsumer::releaseBuffer

Change-Id: Idfa6bb08d62629cd3a198318e6c6fd6a731e73ef
This commit is contained in:
Dan Stoza 2014-03-28 15:19:08 -07:00
parent b1363d37fc
commit d1c1036555
1 changed files with 41 additions and 30 deletions
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71
libs/gui/BufferQueueConsumer.cpp
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@ -22,6 +22,7 @@
#include <gui/BufferQueueConsumer.h>
#include <gui/BufferQueueCore.h>
#include <gui/IConsumerListener.h>
#include <gui/IProducerListener.h>
namespace android {
@ -261,42 +262,52 @@ status_t BufferQueueConsumer::releaseBuffer(int slot, uint64_t frameNumber,
return BAD_VALUE;
}
Mutex::Autolock lock(mCore->mMutex);
sp<IProducerListener> listener;
{ // Autolock scope
Mutex::Autolock lock(mCore->mMutex);
// If the frame number has changed because the buffer has been reallocated,
// we can ignore this releaseBuffer for the old buffer
if (frameNumber != mSlots[slot].mFrameNumber) {
return STALE_BUFFER_SLOT;
}
// If the frame number has changed because the buffer has been reallocated,
// we can ignore this releaseBuffer for the old buffer
if (frameNumber != mSlots[slot].mFrameNumber) {
return STALE_BUFFER_SLOT;
}
// Make sure this buffer hasn't been queued while acquired by the consumer
BufferQueueCore::Fifo::iterator current(mCore->mQueue.begin());
while (current != mCore->mQueue.end()) {
if (current->mSlot == slot) {
BQ_LOGE("releaseBuffer: buffer slot %d pending release is "
"currently queued", slot);
// Make sure this buffer hasn't been queued while acquired by the consumer
BufferQueueCore::Fifo::iterator current(mCore->mQueue.begin());
while (current != mCore->mQueue.end()) {
if (current->mSlot == slot) {
BQ_LOGE("releaseBuffer: buffer slot %d pending release is "
"currently queued", slot);
return BAD_VALUE;
}
++current;
}
if (mSlots[slot].mBufferState == BufferSlot::ACQUIRED) {
mSlots[slot].mEglDisplay = eglDisplay;
mSlots[slot].mEglFence = eglFence;
mSlots[slot].mFence = releaseFence;
mSlots[slot].mBufferState = BufferSlot::FREE;
listener = mCore->mConnectedProducerListener;
BQ_LOGV("releaseBuffer: releasing slot %d", slot);
} else if (mSlots[slot].mNeedsCleanupOnRelease) {
BQ_LOGV("releaseBuffer: releasing a stale buffer slot %d "
"(state = %d)", slot, mSlots[slot].mBufferState);
mSlots[slot].mNeedsCleanupOnRelease = false;
return STALE_BUFFER_SLOT;
} else {
BQ_LOGV("releaseBuffer: attempted to release buffer slot %d "
"but its state was %d", slot, mSlots[slot].mBufferState);
return BAD_VALUE;
}
++current;
}
if (mSlots[slot].mBufferState == BufferSlot::ACQUIRED) {
mSlots[slot].mEglDisplay = eglDisplay;
mSlots[slot].mEglFence = eglFence;
mSlots[slot].mFence = releaseFence;
mSlots[slot].mBufferState = BufferSlot::FREE;
} else if (mSlots[slot].mNeedsCleanupOnRelease) {
BQ_LOGV("releaseBuffer: releasing a stale buffer slot %d "
"(state = %d)", slot, mSlots[slot].mBufferState);
mSlots[slot].mNeedsCleanupOnRelease = false;
return STALE_BUFFER_SLOT;
} else {
BQ_LOGV("releaseBuffer: attempted to release buffer slot %d "
"but its state was %d", slot, mSlots[slot].mBufferState);
return BAD_VALUE;
}
mCore->mDequeueCondition.broadcast();
} // Autolock scope
mCore->mDequeueCondition.broadcast();
// Call back without lock held
if (listener != NULL) {
listener->onBufferReleased();
}
return NO_ERROR;
}