1 /* 2 * Copyright (C) 2018 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_HARDWARE_AUDIO_EFFECT_AUDIO_BUFFER_MANAGER_H_ 18 #define ANDROID_HARDWARE_AUDIO_EFFECT_AUDIO_BUFFER_MANAGER_H_ 19 20 #include PATH(android/hardware/audio/effect/FILE_VERSION/types.h) 21 22 #include <mutex> 23 24 #include <android/hidl/memory/1.0/IMemory.h> 25 #include <system/audio_effect.h> 26 #include <utils/KeyedVector.h> 27 #include <utils/RefBase.h> 28 #include <utils/Singleton.h> 29 30 using ::android::hardware::audio::effect::CPP_VERSION::AudioBuffer; 31 using ::android::hidl::memory::V1_0::IMemory; 32 33 namespace android { 34 namespace hardware { 35 namespace audio { 36 namespace effect { 37 namespace CPP_VERSION { 38 namespace implementation { 39 40 class AudioBufferWrapper : public RefBase { 41 public: 42 explicit AudioBufferWrapper(const AudioBuffer& buffer); 43 virtual ~AudioBufferWrapper(); 44 bool init(); getHalBuffer()45 audio_buffer_t* getHalBuffer() { return &mHalBuffer; } 46 47 private: 48 AudioBufferWrapper(const AudioBufferWrapper&) = delete; 49 void operator=(AudioBufferWrapper) = delete; 50 51 AudioBuffer mHidlBuffer; 52 sp<IMemory> mHidlMemory; 53 audio_buffer_t mHalBuffer; 54 }; 55 56 } // namespace implementation 57 } // namespace CPP_VERSION 58 } // namespace effect 59 } // namespace audio 60 } // namespace hardware 61 } // namespace android 62 63 using ::android::hardware::audio::effect::CPP_VERSION::implementation::AudioBufferWrapper; 64 65 namespace android { 66 67 // This class needs to be in 'android' ns because Singleton macros require that. 68 class AudioBufferManager : public Singleton<AudioBufferManager> { 69 public: 70 bool wrap(const AudioBuffer& buffer, sp<AudioBufferWrapper>* wrapper); 71 72 private: 73 friend class hardware::audio::effect::CPP_VERSION::implementation::AudioBufferWrapper; 74 75 // Called by AudioBufferWrapper. 76 void removeEntry(uint64_t id); 77 78 std::mutex mLock; 79 KeyedVector<uint64_t, wp<AudioBufferWrapper>> mBuffers; 80 }; 81 82 } // namespace android 83 84 #endif // ANDROID_HARDWARE_AUDIO_EFFECT_AUDIO_BUFFER_MANAGER_H_ 85