status_t BufferQueue::setBufferCount(int bufferCount) {
ST_LOGV("setBufferCount: count=%d", bufferCount);
sp<ConsumerListener> listener;
{
Mutex::Autolock lock(mMutex);
if (mAbandoned) {
ST_LOGE("setBufferCount: SurfaceTexture has been abandoned!");
return NO_INIT;
}
if (bufferCount > NUM_BUFFER_SLOTS) {
ST_LOGE("setBufferCount: bufferCount larger than slots available");
return BAD_VALUE;
}
// Error out if the user has dequeued buffers
for (int i=0 ; i<mBufferCount ; i++) {
if (mSlots[i].mBufferState == BufferSlot::DEQUEUED) {
ST_LOGE("setBufferCount: client owns some buffers");
return -EINVAL;
}
}
const int minBufferSlots = mSynchronousMode ?
mMinSyncBufferSlots : mMinAsyncBufferSlots;
if (bufferCount == 0) {
mClientBufferCount = 0;
bufferCount = (mServerBufferCount >= minBufferSlots) ?
mServerBufferCount : minBufferSlots;
return setBufferCountServerLocked(bufferCount);
}
if (bufferCount < minBufferSlots) {
ST_LOGE("setBufferCount: requested buffer count (%d) is less than "
"minimum (%d)", bufferCount, minBufferSlots);
return BAD_VALUE;
}
// here we're guaranteed that the client doesn't have dequeued buffers
// and will release all of its buffer references.
freeAllBuffersLocked();
mBufferCount = bufferCount;
mClientBufferCount = bufferCount;
mBufferHasBeenQueued = false;
mQueue.clear();
mDequeueCondition.broadcast();
listener = mConsumerListener;
} // scope for lock
if (listener != NULL) {
listener->onBuffersReleased();
}
return OK;
}
status_t SurfaceTexture::setBufferCount(int bufferCount) {
ST_LOGV("setBufferCount: count=%d", bufferCount);
Mutex::Autolock lock(mMutex);
if (mAbandoned) {
ST_LOGE("setBufferCount: SurfaceTexture has been abandoned!");
return NO_INIT;
}
if (bufferCount > NUM_BUFFER_SLOTS) {
ST_LOGE("setBufferCount: bufferCount larger than slots available");
return BAD_VALUE;
}
// Error out if the user has dequeued buffers
for (int i=0 ; i<mBufferCount ; i++) {
if (mSlots[i].mBufferState == BufferSlot::DEQUEUED) {
ST_LOGE("setBufferCount: client owns some buffers");
return -EINVAL;
}
}
const int minBufferSlots = mSynchronousMode ?
MIN_SYNC_BUFFER_SLOTS : MIN_ASYNC_BUFFER_SLOTS;
if (bufferCount == 0) {
mClientBufferCount = 0;
bufferCount = (mServerBufferCount >= minBufferSlots) ?
mServerBufferCount : minBufferSlots;
return setBufferCountServerLocked(bufferCount);
}
if (bufferCount < minBufferSlots) {
ST_LOGE("setBufferCount: requested buffer count (%d) is less than "
"minimum (%d)", bufferCount, minBufferSlots);
return BAD_VALUE;
}
// here we're guaranteed that the client doesn't have dequeued buffers
// and will release all of its buffer references.
freeAllBuffersLocked();
mBufferCount = bufferCount;
mClientBufferCount = bufferCount;
mCurrentTexture = INVALID_BUFFER_SLOT;
mQueue.clear();
mDequeueCondition.signal();
return OK;
}
status_t SurfaceMediaSource::setBufferCount(int bufferCount) {
LOGV("SurfaceMediaSource::setBufferCount");
if (bufferCount > NUM_BUFFER_SLOTS) {
LOGE("setBufferCount: bufferCount is larger than the number of buffer slots");
return BAD_VALUE;
}
Mutex::Autolock lock(mMutex);
// Error out if the user has dequeued buffers
for (int i = 0 ; i < mBufferCount ; i++) {
if (mSlots[i].mBufferState == BufferSlot::DEQUEUED) {
LOGE("setBufferCount: client owns some buffers");
return INVALID_OPERATION;
}
}
if (bufferCount == 0) {
const int minBufferSlots = mSynchronousMode ?
MIN_SYNC_BUFFER_SLOTS : MIN_ASYNC_BUFFER_SLOTS;
mClientBufferCount = 0;
bufferCount = (mServerBufferCount >= minBufferSlots) ?
mServerBufferCount : minBufferSlots;
return setBufferCountServerLocked(bufferCount);
}
// We don't allow the client to set a buffer-count less than
// MIN_ASYNC_BUFFER_SLOTS (3), there is no reason for it.
if (bufferCount < MIN_ASYNC_BUFFER_SLOTS) {
return BAD_VALUE;
}
// here we're guaranteed that the client doesn't have dequeued buffers
// and will release all of its buffer references.
mBufferCount = bufferCount;
mClientBufferCount = bufferCount;
mCurrentSlot = INVALID_BUFFER_SLOT;
mQueue.clear();
mDequeueCondition.signal();
freeAllBuffersLocked();
return OK;
}
status_t BufferQueue::setBufferCountServer(int bufferCount) {
ATRACE_CALL();
Mutex::Autolock lock(mMutex);
return setBufferCountServerLocked(bufferCount);
}
// Called from the consumer side
status_t SurfaceMediaSource::setBufferCountServer(int bufferCount) {
Mutex::Autolock lock(mMutex);
return setBufferCountServerLocked(bufferCount);
}
