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 HOS_GRALLOC_BUFFER_ALLOCATOR_H 17 #define HOS_GRALLOC_BUFFER_ALLOCATOR_H 18 19 #include <display_gralloc.h> 20 #include "buffer_allocator.h" 21 22 namespace OHOS::Camera { 23 class GrallocBufferAllocator : public BufferAllocator { 24 public: 25 GrallocBufferAllocator(); 26 virtual ~GrallocBufferAllocator(); 27 28 virtual RetCode Init() override; 29 virtual std::shared_ptr<IBuffer> AllocBuffer(const uint32_t width, 30 const uint32_t height, 31 const uint64_t cameraUsage, 32 const uint32_t format) override; 33 virtual RetCode FreeBuffer(std::shared_ptr<IBuffer>& buffer) override; 34 virtual RetCode MapBuffer(std::shared_ptr<IBuffer>& buffer) override; 35 virtual RetCode UnmapBuffer(std::shared_ptr<IBuffer>& buffer) override; 36 virtual RetCode FlushCache(std::shared_ptr<IBuffer>& buffer) override; 37 virtual RetCode InvalidateCache(std::shared_ptr<IBuffer>& buffer) override; 38 39 private: 40 GrallocFuncs* grallocFuncs_ = nullptr; 41 const int32_t sourceType_ = CAMERA_BUFFER_SOURCE_TYPE_GRALLOC; 42 43 private: 44 void CameraBufferToGrallocBuffer(const std::shared_ptr<IBuffer>& src, BufferHandle& dest) const; 45 void GrallocBufferToCameraBuffer(const BufferHandle& src, std::shared_ptr<IBuffer>& dest) const; 46 }; 47 } // namespace OHOS::Camera 48 49 #endif 50