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_COMPOSER_H 18 #define ANDROID_HWC_COMPOSER_H 19 20 #include <aidl/android/hardware/graphics/composer3/BnComposer.h> 21 #include <utils/Mutex.h> 22 23 #include <memory> 24 25 #include "ComposerClient.h" 26 27 namespace aidl::android::hardware::graphics::composer3::impl { 28 29 // This class is basically just the interface to create a client. 30 class Composer : public BnComposer { 31 public: 32 Composer() = default; 33 34 binder_status_t dump(int fd, const char** args, uint32_t numArgs) override; 35 36 // compser3 api 37 ndk::ScopedAStatus createClient( 38 std::shared_ptr<IComposerClient>* client) override; 39 ndk::ScopedAStatus getCapabilities(std::vector<Capability>* caps) override; 40 41 protected: 42 ndk::SpAIBinder createBinder() override; 43 44 private: 45 bool waitForClientDestroyedLocked(std::unique_lock<std::mutex>& lock); 46 void onClientDestroyed(); 47 48 std::mutex mClientMutex; 49 std::weak_ptr<ComposerClient> mClient GUARDED_BY(mClientMutex); 50 std::condition_variable mClientDestroyedCondition; 51 }; 52 53 } // namespace aidl::android::hardware::graphics::composer3::impl 54 55 #endif