1 /* 2 * Copyright (C) 2023 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 #pragma once 18 19 #include <memory> 20 21 #include <aidl/android/hardware/audio/effect/IEffect.h> 22 #include <aidl/android/hardware/audio/effect/IFactory.h> 23 #include <fmq/AidlMessageQueue.h> 24 #include <media/audiohal/EffectHalInterface.h> 25 #include <system/audio_effect.h> 26 #include <system/audio_effects/aidl_effects_utils.h> 27 28 #include "EffectConversionHelperAidl.h" 29 30 namespace android { 31 namespace effect { 32 33 class EffectHalAidl : public EffectHalInterface { 34 public: 35 36 // Set the input buffer. 37 status_t setInBuffer(const sp<EffectBufferHalInterface>& buffer) override; 38 39 // Set the output buffer. 40 status_t setOutBuffer(const sp<EffectBufferHalInterface>& buffer) override; 41 42 // Effect process function. 43 status_t process() override; 44 45 // Process reverse stream function. This function is used to pass 46 // a reference stream to the effect engine. 47 status_t processReverse() override; 48 49 // Send a command and receive a response to/from effect engine. 50 status_t command(uint32_t cmdCode, uint32_t cmdSize, void* pCmdData, uint32_t* replySize, 51 void* pReplyData) override; 52 53 // Returns the effect descriptor. 54 status_t getDescriptor(effect_descriptor_t *pDescriptor) override; 55 56 // Free resources on the remote side. 57 status_t close() override; 58 59 status_t dump(int fd) override; 60 getIEffect()61 const std::shared_ptr<::aidl::android::hardware::audio::effect::IEffect> getIEffect() const { 62 return mEffect; 63 } 64 65 // for TIME_CHECK getClassName()66 const std::string getClassName() const { return "EffectHalAidl"; } 67 68 private: 69 friend class sp<EffectHalAidl>; 70 71 const std::shared_ptr<::aidl::android::hardware::audio::effect::IFactory> mFactory; 72 const std::shared_ptr<::aidl::android::hardware::audio::effect::IEffect> mEffect; 73 const int32_t mSessionId; 74 const int32_t mIoId; 75 const bool mIsProxyEffect; 76 const int32_t mHalVersion; 77 // Audio effect HAL v2+ changes flag to kEventFlagDataMqNotEmpty to avoid conflict from using 78 // kEventFlagNotEmpty 79 const uint32_t mEventFlagDataMqNotEmpty; 80 bool mIsHapticGenerator = false; 81 std::string mEffectName; 82 83 std::unique_ptr<EffectConversionHelperAidl> mConversion; 84 85 sp<EffectBufferHalInterface> mInBuffer, mOutBuffer; 86 87 status_t createAidlConversion( 88 std::shared_ptr<::aidl::android::hardware::audio::effect::IEffect> effect, 89 int32_t sessionId, int32_t ioId, 90 const ::aidl::android::hardware::audio::effect::Descriptor& desc); 91 // Can not be constructed directly by clients. 92 EffectHalAidl( 93 const std::shared_ptr<::aidl::android::hardware::audio::effect::IFactory>& factory, 94 const std::shared_ptr<::aidl::android::hardware::audio::effect::IEffect>& effect, 95 int32_t sessionId, int32_t ioId, 96 const ::aidl::android::hardware::audio::effect::Descriptor& desc, 97 bool isProxyEffect); 98 bool setEffectReverse(bool reverse); 99 bool needUpdateReturnParam(uint32_t cmdCode); 100 101 status_t maybeReopen(const std::shared_ptr<android::hardware::EventFlag>& efGroup) const; 102 void writeHapticGeneratorData(size_t totalSamples, float* const outputRawBuffer, 103 float* const fmqOutputBuffer) const; 104 size_t writeToHalInputFmqAndSignal( 105 const std::shared_ptr<android::hardware::EventFlag>& efGroup) const; 106 status_t waitHalStatusFmq(size_t samplesWritten) const; 107 status_t readFromHalOutputFmq(size_t samplesWritten) const; 108 109 // The destructor automatically releases the effect. 110 virtual ~EffectHalAidl(); 111 }; 112 113 } // namespace effect 114 } // namespace android 115