mirror of https://github.com/AxioDL/boo.git
126 lines
3.9 KiB
C++
126 lines
3.9 KiB
C++
#pragma once
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#include <cstddef>
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#include <cstdint>
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#include <list>
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#include <memory>
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#include <mutex>
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#include <vector>
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#include "boo/BooObject.hpp"
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#include "boo/audiodev/IAudioVoiceEngine.hpp"
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#include "lib/audiodev/AudioSubmix.hpp"
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#include "lib/audiodev/AudioVoice.hpp"
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#include "lib/audiodev/Common.hpp"
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#include "lib/audiodev/LtRtProcessing.hpp"
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namespace boo {
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/** Base class for managing mixing and sample-rate-conversion amongst active voices */
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class BaseAudioVoiceEngine : public IAudioVoiceEngine {
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protected:
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friend class AudioVoice;
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friend class AudioSubmix;
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friend class AudioVoiceMono;
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friend class AudioVoiceStereo;
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float m_totalVol = 1.f;
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AudioVoiceEngineMixInfo m_mixInfo;
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std::recursive_mutex m_dataMutex;
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AudioVoice* m_voiceHead = nullptr;
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AudioSubmix* m_submixHead = nullptr;
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size_t m_5msFrames = 0;
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IAudioVoiceEngineCallback* m_engineCallback = nullptr;
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/* Shared scratch buffers for accumulating audio data for resampling */
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std::vector<int16_t> m_scratchIn;
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std::vector<int16_t> m_scratch16Pre;
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std::vector<int32_t> m_scratch32Pre;
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std::vector<float> m_scratchFltPre;
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template <typename T>
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std::vector<T>& _getScratchPre();
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std::vector<int16_t> m_scratch16Post;
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std::vector<int32_t> m_scratch32Post;
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std::vector<float> m_scratchFltPost;
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template <typename T>
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std::vector<T>& _getScratchPost();
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/* LtRt processing if enabled */
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std::unique_ptr<LtRtProcessing> m_ltRtProcessing;
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std::vector<int16_t> m_ltRtIn16;
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std::vector<int32_t> m_ltRtIn32;
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std::vector<float> m_ltRtInFlt;
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template <typename T>
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std::vector<T>& _getLtRtIn();
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std::unique_ptr<AudioSubmix> m_mainSubmix;
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std::list<AudioSubmix*> m_linearizedSubmixes;
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bool m_submixesDirty = true;
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template <typename T>
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void _pumpAndMixVoices(size_t frames, T* dataOut);
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void _resetSampleRate();
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public:
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BaseAudioVoiceEngine() : m_mainSubmix(std::make_unique<AudioSubmix>(*this, nullptr, -1, false)) {}
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~BaseAudioVoiceEngine() override;
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ObjToken<IAudioVoice> allocateNewMonoVoice(double sampleRate, IAudioVoiceCallback* cb,
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bool dynamicPitch = false) override;
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ObjToken<IAudioVoice> allocateNewStereoVoice(double sampleRate, IAudioVoiceCallback* cb,
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bool dynamicPitch = false) override;
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ObjToken<IAudioSubmix> allocateNewSubmix(bool mainOut, IAudioSubmixCallback* cb, int busId) override;
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void setCallbackInterface(IAudioVoiceEngineCallback* cb) override;
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void setVolume(float vol) override;
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bool enableLtRt(bool enable) override;
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const AudioVoiceEngineMixInfo& mixInfo() const;
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const AudioVoiceEngineMixInfo& clientMixInfo() const;
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AudioChannelSet getAvailableSet() override { return clientMixInfo().m_channels; }
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void pumpAndMixVoices() override {}
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size_t get5MsFrames() const override { return m_5msFrames; }
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};
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template <>
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inline std::vector<int16_t>& BaseAudioVoiceEngine::_getScratchPre<int16_t>() {
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return m_scratch16Pre;
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}
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template <>
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inline std::vector<int32_t>& BaseAudioVoiceEngine::_getScratchPre<int32_t>() {
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return m_scratch32Pre;
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}
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template <>
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inline std::vector<float>& BaseAudioVoiceEngine::_getScratchPre<float>() {
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return m_scratchFltPre;
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}
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template <>
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inline std::vector<int16_t>& BaseAudioVoiceEngine::_getScratchPost<int16_t>() {
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return m_scratch16Post;
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}
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template <>
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inline std::vector<int32_t>& BaseAudioVoiceEngine::_getScratchPost<int32_t>() {
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return m_scratch32Post;
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}
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template <>
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inline std::vector<float>& BaseAudioVoiceEngine::_getScratchPost<float>() {
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return m_scratchFltPost;
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}
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template <>
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inline std::vector<int16_t>& BaseAudioVoiceEngine::_getLtRtIn<int16_t>() {
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return m_ltRtIn16;
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}
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template <>
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inline std::vector<int32_t>& BaseAudioVoiceEngine::_getLtRtIn<int32_t>() {
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return m_ltRtIn32;
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}
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template <>
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inline std::vector<float>& BaseAudioVoiceEngine::_getLtRtIn<float>() {
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return m_ltRtInFlt;
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}
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} // namespace boo
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