status_t Camera3IOStreamBase::returnAnyBufferLocked(
const camera3_stream_buffer &buffer,
nsecs_t timestamp,
bool output) {
status_t res;
// returnBuffer may be called from a raw pointer, not a sp<>, and we'll be
// decrementing the internal refcount next. In case this is the last ref, we
// might get destructed on the decStrong(), so keep an sp around until the
// end of the call - otherwise have to sprinkle the decStrong on all exit
// points.
sp<Camera3IOStreamBase> keepAlive(this);
decStrong(this);
if ((res = returnBufferPreconditionCheckLocked()) != OK) {
return res;
}
sp<Fence> releaseFence;
res = returnBufferCheckedLocked(buffer, timestamp, output,
&releaseFence);
// Res may be an error, but we still want to decrement our owned count
// to enable clean shutdown. So we'll just return the error but otherwise
// carry on
if (releaseFence != 0) {
mCombinedFence = Fence::merge(mName, mCombinedFence, releaseFence);
}
if (output) {
mHandoutOutputBufferCount--;
}
mHandoutTotalBufferCount--;
if (mHandoutTotalBufferCount == 0 && mState != STATE_IN_CONFIG &&
mState != STATE_IN_RECONFIG && mState != STATE_PREPARING) {
/**
* Avoid a spurious IDLE->ACTIVE->IDLE transition when using buffers
* before/after register_stream_buffers during initial configuration
* or re-configuration, or during prepare pre-allocation
*/
ALOGV("%s: Stream %d: All buffers returned; now idle", __FUNCTION__,
mId);
sp<StatusTracker> statusTracker = mStatusTracker.promote();
if (statusTracker != 0) {
statusTracker->markComponentIdle(mStatusId, mCombinedFence);
}
}
mBufferReturnedSignal.signal();
if (output) {
mLastTimestamp = timestamp;
}
return res;
}
void doUpdatePositionAsync(jlong frameNumber, jint left, jint top,
jint right, jint bottom) {
ATRACE_NAME("Update SurfaceView position");
JNIEnv* env = jnienv();
jobject localref = env->NewLocalRef(mWeakRef);
if (CC_UNLIKELY(!localref)) {
env->DeleteWeakGlobalRef(mWeakRef);
mWeakRef = nullptr;
} else {
env->CallVoidMethod(localref, gSurfaceViewPositionUpdateMethod,
frameNumber, left, top, right, bottom);
env->DeleteLocalRef(localref);
}
// We need to release ourselves here
decStrong(0);
}
void
ICamDevice::
destroyInstance()
{
decStrong(this);
}