1 /* 2 * Copyright (C) 2021 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 #pragma once 17 #include <android/hardware/camera/device/3.4/ICameraDeviceSession.h> 18 #include <mutex> 19 #include <set> 20 #include <vector> 21 #include "cached_stream_buffer.h" 22 23 namespace android::hardware::camera::device::V3_4::implementation { 24 25 class StreamBufferCache { 26 public: 27 std::shared_ptr<CachedStreamBuffer> get(uint64_t buffer_id); 28 void remove(uint64_t buffer_id); 29 void update(const StreamBuffer& buffer); 30 void clear(); 31 void removeStreamsExcept(std::set<int32_t> streams_to_keep = {}); 32 33 private: 34 std::mutex mutex_; 35 std::vector<std::shared_ptr<CachedStreamBuffer>> cache_; 36 }; 37 38 } // namespace android::hardware::camera::device::V3_4::implementation 39