1 /* 2 * Copyright (C) 2022 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 17 #ifndef ANDROID_HWC_DEVICE_H 18 #define ANDROID_HWC_DEVICE_H 19 20 #include <utils/Singleton.h> 21 22 #include <memory> 23 #include <thread> 24 25 #include "Common.h" 26 27 namespace aidl::android::hardware::graphics::composer3::impl { 28 29 class FrameComposer; 30 31 // Provides resources that are stable for the duration of the virtual 32 // device. 33 class Device : public ::android::Singleton<Device> { 34 public: 35 virtual ~Device() = default; 36 37 HWC3::Error getComposer(FrameComposer** outComposer); 38 39 HWC3::Error getPersistentKeyValue(const std::string& key, 40 const std::string& defaultVal, 41 std::string* outValue); 42 43 HWC3::Error setPersistentKeyValue(const std::string& key, 44 const std::string& outValue); 45 46 private: 47 friend class Singleton<Device>; 48 Device() = default; 49 50 std::mutex mMutex; 51 std::unique_ptr<FrameComposer> mComposer; 52 }; 53 54 } // namespace aidl::android::hardware::graphics::composer3::impl 55 56 #endif