Merge "Add a better getLastQueuedBuffer" am: 664c06f951 (7361a8b1) · Commits · e / os / android_frameworks_native-old

libs/gui/BufferQueueProducer.cpp

+20 −0

Original line number	Diff line number	Diff line
		@@ -1621,6 +1621,26 @@ status_t BufferQueueProducer::getLastQueuedBuffer(sp<GraphicBuffer>* outBuffer,
		return NO_ERROR;
		}

		status_t BufferQueueProducer::getLastQueuedBuffer(sp<GraphicBuffer>* outBuffer, sp<Fence>* outFence,
		Rect* outRect, uint32_t* outTransform) {
		ATRACE_CALL();
		BQ_LOGV("getLastQueuedBuffer");

		std::lock_guard<std::mutex> lock(mCore->mMutex);
		if (mCore->mLastQueuedSlot == BufferItem::INVALID_BUFFER_SLOT) {
		*outBuffer = nullptr;
		*outFence = Fence::NO_FENCE;
		return NO_ERROR;
		}

		*outBuffer = mSlots[mCore->mLastQueuedSlot].mGraphicBuffer;
		*outFence = mLastQueueBufferFence;
		*outRect = mLastQueuedCrop;
		*outTransform = mLastQueuedTransform;

		return NO_ERROR;
		}

		void BufferQueueProducer::getFrameTimestamps(FrameEventHistoryDelta* outDelta) {
		addAndGetFrameTimestamps(nullptr, outDelta);
		}

libs/gui/IGraphicBufferProducer.cpp

+95 −0

Original line number	Diff line number	Diff line
		@@ -74,6 +74,7 @@ enum {
		GET_CONSUMER_USAGE,
		SET_LEGACY_BUFFER_DROP,
		SET_AUTO_PREROTATION,
		GET_LAST_QUEUED_BUFFER2,
		};

		class BpGraphicBufferProducer : public BpInterface<IGraphicBufferProducer>
		@@ -491,6 +492,56 @@ public:
		return result;
		}

		virtual status_t getLastQueuedBuffer(sp<GraphicBuffer>* outBuffer, sp<Fence>* outFence,
		Rect* outRect, uint32_t* outTransform) override {
		Parcel data, reply;
		data.writeInterfaceToken(IGraphicBufferProducer::getInterfaceDescriptor());
		status_t result = remote()->transact(GET_LAST_QUEUED_BUFFER2, data, &reply);
		if (result != NO_ERROR) {
		ALOGE("getLastQueuedBuffer failed to transact: %d", result);
		return result;
		}
		status_t remoteError = NO_ERROR;
		result = reply.readInt32(&remoteError);
		if (result != NO_ERROR) {
		ALOGE("getLastQueuedBuffer failed to read status: %d", result);
		return result;
		}
		if (remoteError != NO_ERROR) {
		return remoteError;
		}
		bool hasBuffer = false;
		result = reply.readBool(&hasBuffer);
		if (result != NO_ERROR) {
		ALOGE("getLastQueuedBuffer failed to read buffer: %d", result);
		return result;
		}
		sp<GraphicBuffer> buffer;
		if (hasBuffer) {
		buffer = new GraphicBuffer();
		result = reply.read(*buffer);
		if (result == NO_ERROR) {
		result = reply.read(*outRect);
		}
		if (result == NO_ERROR) {
		result = reply.readUint32(outTransform);
		}
		}
		if (result != NO_ERROR) {
		ALOGE("getLastQueuedBuffer failed to read buffer: %d", result);
		return result;
		}
		sp<Fence> fence(new Fence);
		result = reply.read(*fence);
		if (result != NO_ERROR) {
		ALOGE("getLastQueuedBuffer failed to read fence: %d", result);
		return result;
		}
		*outBuffer = buffer;
		*outFence = fence;
		return result;
		}

		virtual void getFrameTimestamps(FrameEventHistoryDelta* outDelta) {
		Parcel data, reply;
		status_t result = data.writeInterfaceToken(
		@@ -676,6 +727,11 @@ public:
		outBuffer, outFence, outTransformMatrix);
		}

		status_t getLastQueuedBuffer(sp<GraphicBuffer>* outBuffer, sp<Fence>* outFence, Rect* outRect,
		uint32_t* outTransform) override {
		return mBase->getLastQueuedBuffer(outBuffer, outFence, outRect, outTransform);
		}

		void getFrameTimestamps(FrameEventHistoryDelta* outDelta) override {
		return mBase->getFrameTimestamps(outDelta);
		}
		@@ -1025,6 +1081,45 @@ status_t BnGraphicBufferProducer::onTransact(
		}
		return NO_ERROR;
		}
		case GET_LAST_QUEUED_BUFFER2: {
		CHECK_INTERFACE(IGraphicBufferProducer, data, reply);
		sp<GraphicBuffer> buffer(nullptr);
		sp<Fence> fence(Fence::NO_FENCE);
		Rect crop;
		uint32_t transform;
		status_t result = getLastQueuedBuffer(&buffer, &fence, &crop, &transform);
		reply->writeInt32(result);
		if (result != NO_ERROR) {
		return result;
		}
		if (!buffer.get()) {
		reply->writeBool(false);
		} else {
		reply->writeBool(true);
		result = reply->write(*buffer);
		if (result == NO_ERROR) {
		result = reply->write(crop);
		}
		if (result == NO_ERROR) {
		result = reply->writeUint32(transform);
		}
		}
		if (result != NO_ERROR) {
		ALOGE("getLastQueuedBuffer failed to write buffer: %d", result);
		return result;
		}
		if (fence == nullptr) {
		ALOGE("getLastQueuedBuffer returned a NULL fence, setting to Fence::NO_FENCE");
		fence = Fence::NO_FENCE;
		}
		result = reply->write(*fence);
		if (result != NO_ERROR) {
		ALOGE("getLastQueuedBuffer failed to write fence: %d", result);
		return result;
		}
		return NO_ERROR;
		}

		case GET_FRAME_TIMESTAMPS: {
		CHECK_INTERFACE(IGraphicBufferProducer, data, reply);
		FrameEventHistoryDelta frameTimestamps;

libs/gui/Surface.cpp

+36 −0

Original line number	Diff line number	Diff line
		@@ -1207,6 +1207,9 @@ int Surface::perform(int operation, va_list args)
		case NATIVE_WINDOW_GET_LAST_QUEUED_BUFFER:
		res = dispatchGetLastQueuedBuffer(args);
		break;
		case NATIVE_WINDOW_GET_LAST_QUEUED_BUFFER2:
		res = dispatchGetLastQueuedBuffer2(args);
		break;
		default:
		res = NAME_NOT_FOUND;
		break;
		@@ -1513,6 +1516,39 @@ int Surface::dispatchGetLastQueuedBuffer(va_list args) {
		return result;
		}

		int Surface::dispatchGetLastQueuedBuffer2(va_list args) {
		AHardwareBuffer buffer = va_arg(args, AHardwareBuffer);
		int* fence = va_arg(args, int*);
		ARect* crop = va_arg(args, ARect*);
		uint32_t* transform = va_arg(args, uint32_t*);
		sp<GraphicBuffer> graphicBuffer;
		sp<Fence> spFence;

		Rect r;
		int result =
		mGraphicBufferProducer->getLastQueuedBuffer(&graphicBuffer, &spFence, &r, transform);

		if (graphicBuffer != nullptr) {
		*buffer = graphicBuffer->toAHardwareBuffer();
		AHardwareBuffer_acquire(*buffer);

		// Avoid setting crop* unless buffer is valid (matches IGBP behavior)
		crop->left = r.left;
		crop->top = r.top;
		crop->right = r.right;
		crop->bottom = r.bottom;
		} else {
		*buffer = nullptr;
		}

		if (spFence != nullptr) {
		*fence = spFence->dup();
		} else {
		*fence = -1;
		}
		return result;
		}

		bool Surface::transformToDisplayInverse() {
		return (mTransform & NATIVE_WINDOW_TRANSFORM_INVERSE_DISPLAY) ==
		NATIVE_WINDOW_TRANSFORM_INVERSE_DISPLAY;

libs/gui/include/gui/BufferQueueProducer.h

+4 −0

Original line number	Diff line number	Diff line
		@@ -186,6 +186,10 @@ public:
		virtual status_t getLastQueuedBuffer(sp<GraphicBuffer>* outBuffer,
		sp<Fence>* outFence, float outTransformMatrix[16]) override;

		// See IGraphicBufferProducer::getLastQueuedBuffer
		virtual status_t getLastQueuedBuffer(sp<GraphicBuffer>* outBuffer, sp<Fence>* outFence,
		Rect* outRect, uint32_t* outTransform) override;

		// See IGraphicBufferProducer::getFrameTimestamps
		virtual void getFrameTimestamps(FrameEventHistoryDelta* outDelta) override;

libs/gui/include/gui/IGraphicBufferProducer.h

+16 −0

Original line number	Diff line number	Diff line
		@@ -619,6 +619,22 @@ public:
		virtual status_t getLastQueuedBuffer(sp<GraphicBuffer>* outBuffer,
		sp<Fence>* outFence, float outTransformMatrix[16]) = 0;

		// Returns the last queued buffer along with a fence which must signal
		// before the contents of the buffer are read. If there are no buffers in
		// the queue, outBuffer will be populated with nullptr and outFence will be
		// populated with Fence::NO_FENCE
		//
		// outRect & outTransform are not modified if outBuffer is null.
		//
		// Returns NO_ERROR or the status of the Binder transaction
		virtual status_t getLastQueuedBuffer([[maybe_unused]] sp<GraphicBuffer>* outBuffer,
		[[maybe_unused]] sp<Fence>* outFence,
		[[maybe_unused]] Rect* outRect,
		[[maybe_unused]] uint32_t* outTransform) {
		// Too many things implement IGraphicBufferProducer...
		return UNKNOWN_TRANSACTION;
		}

		// Gets the frame events that haven't already been retrieved.
		virtual void getFrameTimestamps(FrameEventHistoryDelta* /outDelta/) {}