void ZslProcessor3::onBufferReleased(const BufferInfo& bufferInfo) {
Mutex::Autolock l(mInputMutex);
// ignore output buffers
if (bufferInfo.mOutput) {
return;
}
// TODO: Verify that the buffer is in our queue by looking at timestamp
// theoretically unnecessary unless we change the following assumptions:
// -- only 1 buffer reprocessed at a time (which is the case now)
// Erase entire ZSL queue since we've now completed the capture and preview
// is stopped.
//
// We need to guarantee that if we do two back-to-back captures,
// the second won't use a buffer that's older/the same as the first, which
// is theoretically possible if we don't clear out the queue and the
// selection criteria is something like 'newest'. Clearing out the queue
// on a completed capture ensures we'll only use new data.
ALOGV("%s: Memory optimization, clearing ZSL queue",
__FUNCTION__);
clearZslQueueLocked();
// Required so we accept more ZSL requests
mState = RUNNING;
}
status_t ZslProcessor3::clearZslQueue() {
Mutex::Autolock l(mInputMutex);
// If in middle of capture, can't clear out queue
if (mState == LOCKED) return OK;
return clearZslQueueLocked();
}
void ZslProcessor::onBufferReleased(buffer_handle_t *handle) {
Mutex::Autolock l(mInputMutex);
// Verify that the buffer is in our queue
size_t i = 0;
for (; i < mZslQueue.size(); i++) {
if (&(mZslQueue[i].buffer.mGraphicBuffer->handle) == handle) break;
}
if (i == mZslQueue.size()) {
ALOGW("%s: Released buffer %p not found in queue",
__FUNCTION__, handle);
}
// Erase entire ZSL queue since we've now completed the capture and preview
// is stopped.
clearZslQueueLocked();
mState = RUNNING;
}
status_t ZslProcessor::disconnect() {
ATRACE_CALL();
status_t res;
Mutex::Autolock l(mInputMutex);
if (mZslStreamId != NO_STREAM) {
sp<CameraDeviceBase> device = mDevice.promote();
if (device == 0) {
ALOGE("%s: Camera %d: Device does not exist", __FUNCTION__, mId);
return INVALID_OPERATION;
}
clearZslQueueLocked();
res = device->deleteReprocessStream(mZslReprocessStreamId);
if (res != OK) {
ALOGE("%s: Camera %d: Cannot delete ZSL reprocessing stream %d: "
"%s (%d)", __FUNCTION__, mId,
mZslReprocessStreamId, strerror(-res), res);
return res;
}
mZslReprocessStreamId = NO_STREAM;
res = device->deleteStream(mZslStreamId);
if (res != OK) {
ALOGE("%s: Camera %d: Cannot delete ZSL output stream %d: "
"%s (%d)", __FUNCTION__, mId,
mZslStreamId, strerror(-res), res);
return res;
}
mZslWindow.clear();
mZslConsumer.clear();
mZslStreamId = NO_STREAM;
}
return OK;
}
