1 /* 2 * Copyright (C) 2017 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_V2_0_AudioBufferManager_H_ 18 #define android_hardware_audio_effect_V2_0_AudioBufferManager_H_ 19 20 #include <mutex> 21 22 #include <android/hardware/audio/effect/2.0/types.h> 23 #include <android/hidl/memory/1.0/IMemory.h> 24 #include <system/audio_effect.h> 25 #include <utils/RefBase.h> 26 #include <utils/KeyedVector.h> 27 #include <utils/Singleton.h> 28 29 using ::android::hardware::audio::effect::V2_0::AudioBuffer; 30 using ::android::hidl::memory::V1_0::IMemory; 31 32 namespace android { 33 namespace hardware { 34 namespace audio { 35 namespace effect { 36 namespace V2_0 { 37 namespace implementation { 38 39 class AudioBufferWrapper : public RefBase { 40 public: 41 explicit AudioBufferWrapper(const AudioBuffer& buffer); 42 virtual ~AudioBufferWrapper(); 43 bool init(); 44 audio_buffer_t* getHalBuffer() { return &mHalBuffer; } 45 private: 46 AudioBufferWrapper(const AudioBufferWrapper&) = delete; 47 void operator=(AudioBufferWrapper) = delete; 48 49 AudioBuffer mHidlBuffer; 50 sp<IMemory> mHidlMemory; 51 audio_buffer_t mHalBuffer; 52 }; 53 54 } // namespace implementation 55 } // namespace V2_0 56 } // namespace effect 57 } // namespace audio 58 } // namespace hardware 59 } // namespace android 60 61 using ::android::hardware::audio::effect::V2_0::implementation::AudioBufferWrapper; 62 63 namespace android { 64 65 // This class needs to be in 'android' ns because Singleton macros require that. 66 class AudioBufferManager : public Singleton<AudioBufferManager> { 67 public: 68 bool wrap(const AudioBuffer& buffer, sp<AudioBufferWrapper>* wrapper); 69 70 private: 71 friend class hardware::audio::effect::V2_0::implementation::AudioBufferWrapper; 72 73 // Called by AudioBufferWrapper. 74 void removeEntry(uint64_t id); 75 76 std::mutex mLock; 77 KeyedVector<uint64_t, wp<AudioBufferWrapper>> mBuffers; 78 }; 79 80 } // namespace android 81 82 #endif // android_hardware_audio_effect_V2_0_AudioBufferManager_H_ 83
