Merge "CameraService: Update camera and torch state lists also at runtime" am: 900596ac1e (a7552662) · Commits · e / os / android_frameworks_av

services/camera/libcameraservice/CameraService.cpp

+37 −23

Original line number	Diff line number	Diff line
		@@ -243,29 +243,10 @@ status_t CameraService::enumerateProviders() {
		}

		if (!cameraFound) {
		hardware::camera::common::V1_0::CameraResourceCost cost;
		res = mCameraProviderManager->getResourceCost(cameraId, &cost);
		if (res != OK) {
		ALOGE("Failed to query device resource cost: %s (%d)", strerror(-res), res);
		continue;
		}
		std::set<String8> conflicting;
		for (size_t i = 0; i < cost.conflictingDevices.size(); i++) {
		conflicting.emplace(String8(cost.conflictingDevices[i].c_str()));
		}

		{
		Mutex::Autolock lock(mCameraStatesLock);
		mCameraStates.emplace(id8,
		std::make_shared<CameraState>(id8, cost.resourceCost, conflicting));
		}
		addStates(id8);
		}

		onDeviceStatusChanged(id8, CameraDeviceStatus::PRESENT);

		if (mFlashlight->hasFlashUnit(id8)) {
		mTorchStatusMap.add(id8, TorchModeStatus::AVAILABLE_OFF);
		}
		}

		return OK;
		@@ -300,6 +281,31 @@ void CameraService::onNewProviderRegistered() {
		enumerateProviders();
		}

		void CameraService::addStates(const String8 id) {
		std::string cameraId(id.c_str());
		hardware::camera::common::V1_0::CameraResourceCost cost;
		status_t res = mCameraProviderManager->getResourceCost(cameraId, &cost);
		if (res != OK) {
		ALOGE("Failed to query device resource cost: %s (%d)", strerror(-res), res);
		return;
		}
		std::set<String8> conflicting;
		for (size_t i = 0; i < cost.conflictingDevices.size(); i++) {
		conflicting.emplace(String8(cost.conflictingDevices[i].c_str()));
		}

		{
		Mutex::Autolock lock(mCameraStatesLock);
		mCameraStates.emplace(id, std::make_shared<CameraState>(id, cost.resourceCost,
		conflicting));
		}

		if (mFlashlight->hasFlashUnit(id)) {
		mTorchStatusMap.add(id, TorchModeStatus::AVAILABLE_OFF);
		}
		logDeviceAdded(id, "Device added");
		}

		void CameraService::onDeviceStatusChanged(const String8& id,
		CameraDeviceStatus newHalStatus) {
		ALOGI("%s: Status changed for cameraId=%s, newStatus=%d", __FUNCTION__,
		@@ -311,8 +317,13 @@ void CameraService::onDeviceStatusChanged(const String8& id,

		if (state == nullptr) {
		if (newStatus == StatusInternal::PRESENT) {
		ALOGW("%s: Unknown camera ID %s, probably newly registered?",
		ALOGI("%s: Unknown camera ID %s, a new camera is added",
		__FUNCTION__, id.string());

		// First add as absent to make sure clients are notified below
		addStates(id);

		updateStatus(newStatus, id);
		} else {
		ALOGE("%s: Bad camera ID %s", __FUNCTION__, id.string());
		}
		@@ -2229,8 +2240,11 @@ status_t CameraService::BasicClient::finishCameraOps() {
		mClientPackageName);
		mOpsActive = false;

		// This function is called when a client disconnects. This should
		// release the camera, but actually only if it was in a proper
		// functional state, i.e. with status NOT_AVAILABLE
		std::initializer_list<StatusInternal> rejected = {StatusInternal::PRESENT,
		StatusInternal::ENUMERATING};
		StatusInternal::ENUMERATING, StatusInternal::NOT_PRESENT};

		// Transition to PRESENT if the camera is not in either of the rejected states
		sCameraService->updateStatus(StatusInternal::PRESENT,
		@@ -2322,7 +2336,7 @@ void CameraService::Client::OpsCallback::opChanged(int32_t op,

		CameraService::CameraState::CameraState(const String8& id, int cost,
		const std::set<String8>& conflicting) : mId(id),
		mStatus(StatusInternal::PRESENT), mCost(cost), mConflicting(conflicting) {}
		mStatus(StatusInternal::NOT_PRESENT), mCost(cost), mConflicting(conflicting) {}

		CameraService::CameraState::~CameraState() {}

services/camera/libcameraservice/CameraService.h

+3 −0

Original line number	Diff line number	Diff line
		@@ -512,6 +512,9 @@ private:
		// Eumerate all camera providers in the system
		status_t enumerateProviders();

		// Add a new camera to camera and torch state lists
		void addStates(const String8 id);

		// Check if we can connect, before we acquire the service lock.
		// The returned originalClientPid is the PID of the original process that wants to connect to
		// camera.