1 /* 2 * Copyright (c) 2021 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef DISTRIBUTED_CAMERA_BUFFER_MANAGER_H 17 #define DISTRIBUTED_CAMERA_BUFFER_MANAGER_H 18 19 #include <list> 20 #include <mutex> 21 22 #include "constants.h" 23 #include "dimage_buffer.h" 24 #include "surface.h" 25 #include "surface_buffer.h" 26 27 #include "v1_0/dcamera_types.h" 28 29 namespace OHOS { 30 namespace DistributedHardware { 31 using namespace OHOS::HDI::DistributedCamera::V1_0; 32 class DBufferManager { 33 public: 34 DBufferManager() = default; 35 virtual ~DBufferManager() = default; 36 DBufferManager(const DBufferManager &other) = delete; 37 DBufferManager(DBufferManager &&other) = delete; 38 DBufferManager& operator=(const DBufferManager &other) = delete; 39 DBufferManager& operator=(DBufferManager &&other) = delete; 40 41 public: 42 std::shared_ptr<DImageBuffer> AcquireBuffer(); 43 RetCode AddBuffer(std::shared_ptr<DImageBuffer>& buffer); 44 RetCode RemoveBuffer(std::shared_ptr<DImageBuffer>& buffer); 45 void NotifyStop(bool state); 46 static RetCode SurfaceBufferToDImageBuffer(const OHOS::sptr<OHOS::SurfaceBuffer> &surfaceBuffer, 47 const std::shared_ptr<DImageBuffer> &buffer); 48 static RetCode DImageBufferToDCameraBuffer(const std::shared_ptr<DImageBuffer> &imageBuffer, 49 DCameraBuffer &buffer); 50 static uint64_t CameraUsageToGrallocUsage(const uint64_t cameraUsage); 51 static uint32_t PixelFormatToDCameraFormat(const PixelFormat format); 52 53 private: 54 std::mutex lock_; 55 std::atomic_bool streamStop_ = false; 56 std::list<std::shared_ptr<DImageBuffer>> idleList_ = {}; 57 std::list<std::shared_ptr<DImageBuffer>> busyList_ = {}; 58 }; 59 } // namespace DistributedHardware 60 } // namespace OHOS 61 #endif // DISTRIBUTED_CAMERA_BUFFER_MANAGER_H