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_HEAP_BUFFER_ALLOCATOR_H 17 #define HOS_HEAP_BUFFER_ALLOCATOR_H 18 19 #include <memory> 20 #include "buffer_allocator.h" 21 22 23 namespace OHOS::Camera { 24 class HeapBufferAllocator : public BufferAllocator { 25 public: 26 HeapBufferAllocator(); 27 virtual ~HeapBufferAllocator(); 28 29 RetCode Init() override; 30 31 std::shared_ptr<IBuffer> AllocBuffer(const uint32_t width, 32 const uint32_t height, 33 const uint64_t cameraUsage, 34 const uint32_t cameraFormat) override; 35 RetCode FreeBuffer(std::shared_ptr<IBuffer>& buffer) override; 36 RetCode MapBuffer(std::shared_ptr<IBuffer>&) override; 37 RetCode UnmapBuffer(std::shared_ptr<IBuffer>&) override; 38 RetCode FlushCache(std::shared_ptr<IBuffer>&) override; 39 RetCode InvalidateCache(std::shared_ptr<IBuffer>&) override; 40 41 private: 42 const int32_t sourceType_ = CAMERA_BUFFER_SOURCE_TYPE_HEAP; 43 private: 44 uint32_t CalculateSize(const uint32_t width, 45 const uint32_t height, 46 const uint64_t usage, 47 const uint32_t format) const; 48 }; 49 } // namespace OHOS::Camera 50 51 #endif 52 53