diff options
Diffstat (limited to 'services/camera/libcameraservice/device3/Camera3Device.cpp')
| -rw-r--r-- | services/camera/libcameraservice/device3/Camera3Device.cpp | 200 |
1 files changed, 196 insertions, 4 deletions
diff --git a/services/camera/libcameraservice/device3/Camera3Device.cpp b/services/camera/libcameraservice/device3/Camera3Device.cpp index dc752a6..ec9c70c 100644 --- a/services/camera/libcameraservice/device3/Camera3Device.cpp +++ b/services/camera/libcameraservice/device3/Camera3Device.cpp @@ -175,6 +175,8 @@ status_t Camera3Device::initialize(CameraModule *module) return res; } + mPreparerThread = new PreparerThread(); + /** Everything is good to go */ mDeviceVersion = device->common.version; @@ -1190,7 +1192,8 @@ status_t Camera3Device::setNotifyCallback(NotificationListener *listener) { ALOGW("%s: Replacing old callback listener", __FUNCTION__); } mListener = listener; - mRequestThread->setNotifyCallback(listener); + mRequestThread->setNotificationListener(listener); + mPreparerThread->setNotificationListener(listener); return OK; } @@ -1336,6 +1339,34 @@ status_t Camera3Device::flush(int64_t *frameNumber) { return res; } +status_t Camera3Device::prepare(int streamId) { + ATRACE_CALL(); + ALOGV("%s: Camera %d: Preparing stream %d", __FUNCTION__, mId, streamId); + + sp<Camera3StreamInterface> stream; + ssize_t outputStreamIdx = mOutputStreams.indexOfKey(streamId); + if (outputStreamIdx == NAME_NOT_FOUND) { + CLOGE("Stream %d does not exist", streamId); + return BAD_VALUE; + } + + stream = mOutputStreams.editValueAt(outputStreamIdx); + + if (stream->isUnpreparable() || stream->hasOutstandingBuffers() ) { + ALOGE("%s: Camera %d: Stream %d has already been a request target", + __FUNCTION__, mId, streamId); + return BAD_VALUE; + } + + if (mRequestThread->isStreamPending(stream)) { + ALOGE("%s: Camera %d: Stream %d is already a target in a pending request", + __FUNCTION__, mId, streamId); + return BAD_VALUE; + } + + return mPreparerThread->prepare(stream); +} + uint32_t Camera3Device::getDeviceVersion() { ATRACE_CALL(); Mutex::Autolock il(mInterfaceLock); @@ -1409,6 +1440,11 @@ sp<Camera3Device::CaptureRequest> Camera3Device::createCaptureRequest( return NULL; } } + // Check if stream is being prepared + if (mInputStream->isPreparing()) { + CLOGE("Request references an input stream that's being prepared!"); + return NULL; + } newRequest->mInputStream = mInputStream; newRequest->mSettings.erase(ANDROID_REQUEST_INPUT_STREAMS); @@ -1441,6 +1477,11 @@ sp<Camera3Device::CaptureRequest> Camera3Device::createCaptureRequest( return NULL; } } + // Check if stream is being prepared + if (stream->isPreparing()) { + CLOGE("Request references an output stream that's being prepared!"); + return NULL; + } newRequest->mOutputStreams.push(stream); } @@ -1916,7 +1957,6 @@ bool Camera3Device::insert3AResult(CameraMetadata& result, int32_t tag, return true; } - void Camera3Device::returnOutputBuffers( const camera3_stream_buffer_t *outputBuffers, size_t numBuffers, nsecs_t timestamp) { @@ -2416,7 +2456,7 @@ CameraMetadata Camera3Device::getLatestRequestLocked() { Camera3Device::RequestThread::RequestThread(wp<Camera3Device> parent, sp<StatusTracker> statusTracker, camera3_device_t *hal3Device) : - Thread(false), + Thread(/*canCallJava*/false), mParent(parent), mStatusTracker(statusTracker), mHal3Device(hal3Device), @@ -2432,7 +2472,7 @@ Camera3Device::RequestThread::RequestThread(wp<Camera3Device> parent, mStatusId = statusTracker->addComponent(); } -void Camera3Device::RequestThread::setNotifyCallback( +void Camera3Device::RequestThread::setNotificationListener( NotificationListener *listener) { Mutex::Autolock l(mRequestLock); mListener = listener; @@ -2846,6 +2886,26 @@ CameraMetadata Camera3Device::RequestThread::getLatestRequest() const { return mLatestRequest; } +bool Camera3Device::RequestThread::isStreamPending( + sp<Camera3StreamInterface>& stream) { + Mutex::Autolock l(mRequestLock); + + for (const auto& request : mRequestQueue) { + for (const auto& s : request->mOutputStreams) { + if (stream == s) return true; + } + if (stream == request->mInputStream) return true; + } + + for (const auto& request : mRepeatingRequests) { + for (const auto& s : request->mOutputStreams) { + if (stream == s) return true; + } + if (stream == request->mInputStream) return true; + } + + return false; +} void Camera3Device::RequestThread::cleanUpFailedRequest( camera3_capture_request_t &request, @@ -3193,6 +3253,138 @@ status_t Camera3Device::RequestThread::addDummyTriggerIds( return OK; } +/** + * PreparerThread inner class methods + */ + +Camera3Device::PreparerThread::PreparerThread() : + Thread(/*canCallJava*/false), mActive(false), mCancelNow(false) { +} + +Camera3Device::PreparerThread::~PreparerThread() { + Thread::requestExitAndWait(); + if (mCurrentStream != nullptr) { + mCurrentStream->cancelPrepare(); + ATRACE_ASYNC_END("stream prepare", mCurrentStream->getId()); + mCurrentStream.clear(); + } + clear(); +} + +status_t Camera3Device::PreparerThread::prepare(sp<Camera3StreamInterface>& stream) { + status_t res; + + Mutex::Autolock l(mLock); + + res = stream->startPrepare(); + if (res == OK) { + // No preparation needed, fire listener right off + ALOGV("%s: Stream %d already prepared", __FUNCTION__, stream->getId()); + if (mListener) { + mListener->notifyPrepared(stream->getId()); + } + return OK; + } else if (res != NOT_ENOUGH_DATA) { + return res; + } + + // Need to prepare, start up thread if necessary + if (!mActive) { + // mRunning will change to false before the thread fully shuts down, so wait to be sure it + // isn't running + Thread::requestExitAndWait(); + res = Thread::run("C3PrepThread", PRIORITY_BACKGROUND); + if (res != OK) { + ALOGE("%s: Unable to start preparer stream: %d (%s)", __FUNCTION__, res, strerror(-res)); + if (mListener) { + mListener->notifyPrepared(stream->getId()); + } + return res; + } + mCancelNow = false; + mActive = true; + ALOGV("%s: Preparer stream started", __FUNCTION__); + } + + // queue up the work + mPendingStreams.push_back(stream); + ALOGV("%s: Stream %d queued for preparing", __FUNCTION__, stream->getId()); + + return OK; +} + +status_t Camera3Device::PreparerThread::clear() { + status_t res; + + Mutex::Autolock l(mLock); + + for (const auto& stream : mPendingStreams) { + stream->cancelPrepare(); + } + mPendingStreams.clear(); + mCancelNow = true; + + return OK; +} + +void Camera3Device::PreparerThread::setNotificationListener(NotificationListener *listener) { + Mutex::Autolock l(mLock); + mListener = listener; +} + +bool Camera3Device::PreparerThread::threadLoop() { + status_t res; + { + Mutex::Autolock l(mLock); + if (mCurrentStream == nullptr) { + // End thread if done with work + if (mPendingStreams.empty()) { + ALOGV("%s: Preparer stream out of work", __FUNCTION__); + // threadLoop _must not_ re-acquire mLock after it sets mActive to false; would + // cause deadlock with prepare()'s requestExitAndWait triggered by !mActive. + mActive = false; + return false; + } + + // Get next stream to prepare + auto it = mPendingStreams.begin(); + mCurrentStream = *it; + mPendingStreams.erase(it); + ATRACE_ASYNC_BEGIN("stream prepare", mCurrentStream->getId()); + ALOGV("%s: Preparing stream %d", __FUNCTION__, mCurrentStream->getId()); + } else if (mCancelNow) { + mCurrentStream->cancelPrepare(); + ATRACE_ASYNC_END("stream prepare", mCurrentStream->getId()); + ALOGV("%s: Cancelling stream %d prepare", __FUNCTION__, mCurrentStream->getId()); + mCurrentStream.clear(); + mCancelNow = false; + return true; + } + } + + res = mCurrentStream->prepareNextBuffer(); + if (res == NOT_ENOUGH_DATA) return true; + if (res != OK) { + // Something bad happened; try to recover by cancelling prepare and + // signalling listener anyway + ALOGE("%s: Stream %d returned error %d (%s) during prepare", __FUNCTION__, + mCurrentStream->getId(), res, strerror(-res)); + mCurrentStream->cancelPrepare(); + } + + // This stream has finished, notify listener + Mutex::Autolock l(mLock); + if (mListener) { + ALOGV("%s: Stream %d prepare done, signaling listener", __FUNCTION__, + mCurrentStream->getId()); + mListener->notifyPrepared(mCurrentStream->getId()); + } + + ATRACE_ASYNC_END("stream prepare", mCurrentStream->getId()); + mCurrentStream.clear(); + + return true; +} /** * Static callback forwarding methods from HAL to instance |