boo/lib/audiodev/AudioVoiceEngine.hpp

82 lines
2.8 KiB
C++

#ifndef BOO_AUDIOVOICEENGINE_HPP
#define BOO_AUDIOVOICEENGINE_HPP
#include "boo/audiodev/IAudioVoiceEngine.hpp"
#include "LtRtProcessing.hpp"
#include "Common.hpp"
#include "AudioVoice.hpp"
#include "AudioSubmix.hpp"
#include <functional>
namespace boo
{
/** Base class for managing mixing and sample-rate-conversion amongst active voices */
class BaseAudioVoiceEngine : public IAudioVoiceEngine
{
protected:
friend class AudioVoice;
friend class AudioSubmix;
friend class AudioVoiceMono;
friend class AudioVoiceStereo;
float m_totalVol = 1.f;
AudioVoiceEngineMixInfo m_mixInfo;
std::list<AudioVoice*> m_activeVoices;
std::list<AudioSubmix*> m_activeSubmixes;
size_t m_5msFrames = 0;
IAudioVoiceEngineCallback* m_engineCallback = nullptr;
/* Shared scratch buffers for accumulating audio data for resampling */
std::vector<int16_t> m_scratchIn;
std::vector<int16_t> m_scratch16Pre;
std::vector<int32_t> m_scratch32Pre;
std::vector<float> m_scratchFltPre;
std::vector<int16_t> m_scratch16Post;
std::vector<int32_t> m_scratch32Post;
std::vector<float> m_scratchFltPost;
/* LtRt processing if enabled */
std::unique_ptr<LtRtProcessing> m_ltRtProcessing;
std::vector<int16_t> m_ltRtIn16;
std::vector<int32_t> m_ltRtIn32;
std::vector<float> m_ltRtInFlt;
AudioSubmix m_mainSubmix;
std::list<AudioSubmix*> m_linearizedSubmixes;
bool m_submixesDirty = true;
void _pumpAndMixVoices(size_t frames, int16_t* dataOut);
void _pumpAndMixVoices(size_t frames, int32_t* dataOut);
void _pumpAndMixVoices(size_t frames, float* dataOut);
void _unbindFrom(std::list<AudioVoice*>::iterator it);
void _unbindFrom(std::list<AudioSubmix*>::iterator it);
public:
BaseAudioVoiceEngine() : m_mainSubmix(*this, nullptr, -1, false) {}
~BaseAudioVoiceEngine();
std::unique_ptr<IAudioVoice> allocateNewMonoVoice(double sampleRate,
IAudioVoiceCallback* cb,
bool dynamicPitch=false);
std::unique_ptr<IAudioVoice> allocateNewStereoVoice(double sampleRate,
IAudioVoiceCallback* cb,
bool dynamicPitch=false);
std::unique_ptr<IAudioSubmix> allocateNewSubmix(bool mainOut, IAudioSubmixCallback* cb, int busId);
void setCallbackInterface(IAudioVoiceEngineCallback* cb);
void setVolume(float vol);
bool enableLtRt(bool enable);
const AudioVoiceEngineMixInfo& mixInfo() const;
const AudioVoiceEngineMixInfo& clientMixInfo() const;
AudioChannelSet getAvailableSet() {return clientMixInfo().m_channels;}
void pumpAndMixVoices() {}
size_t get5MsFrames() const {return m_5msFrames;}
};
}
#endif // BOO_AUDIOVOICEENGINE_HPP