Mesen/Core/SoundMixer.h
2022-04-01 20:13:29 +02:00

121 lines
2.9 KiB
C++

#pragma once
#include "stdafx.h"
#include "EmulationSettings.h"
#include "../Utilities/LowPassFilter.h"
#include "../Utilities/blip_buf.h"
#include "../Utilities/SimpleLock.h"
#include "../Libretro/libretro.h"
#include "Snapshotable.h"
#include "StereoPanningFilter.h"
#include "StereoDelayFilter.h"
#include "StereoCombFilter.h"
#include "ReverbFilter.h"
#include "CrossFeedFilter.h"
class Console;
class WaveRecorder;
class OggMixer;
namespace orfanidis_eq {
class freq_grid;
class eq1;
}
class SoundMixer : public Snapshotable
{
public:
static constexpr uint32_t CycleLength = 10000;
static constexpr uint32_t BitsPerSample = 16;
private:
static constexpr uint32_t MaxSampleRate = 96000;
static constexpr uint32_t MaxSamplesPerFrame = MaxSampleRate / 60 * 4 * 2; //x4 to allow CPU overclocking up to 10x, x2 for panning stereo
static constexpr uint32_t MaxChannelCount = 11;
retro_audio_sample_batch_t _sendAudioSample = nullptr;
bool _skipMode = false;
EmulationSettings* _settings;
shared_ptr<WaveRecorder> _waveRecorder;
double _fadeRatio;
uint32_t _muteFrameCount;
unique_ptr<OggMixer> _oggMixer;
unique_ptr<orfanidis_eq::freq_grid> _eqFrequencyGrid;
unique_ptr<orfanidis_eq::eq1> _equalizerLeft;
unique_ptr<orfanidis_eq::eq1> _equalizerRight;
shared_ptr<Console> _console;
CrossFeedFilter _crossFeedFilter;
LowPassFilter _lowPassFilter;
StereoPanningFilter _stereoPanning;
StereoDelayFilter _stereoDelay;
StereoCombFilter _stereoCombFilter;
ReverbFilter _reverbFilter;
int16_t _previousOutputLeft = 0;
int16_t _previousOutputRight = 0;
vector<uint32_t> _timestamps;
int16_t _channelOutput[MaxChannelCount][CycleLength];
int16_t _currentOutput[MaxChannelCount];
blip_t* _blipBufLeft;
blip_t* _blipBufRight;
int16_t *_outputBuffer;
double _volumes[MaxChannelCount];
double _panning[MaxChannelCount];
NesModel _model;
uint32_t _sampleRate;
uint32_t _clockRate;
bool _hasPanning;
double _previousTargetRate;
double GetChannelOutput(AudioChannel channel, bool forRightChannel);
int16_t GetOutputVolume(bool forRightChannel);
void EndFrame(uint32_t time);
void UpdateRates(bool forceUpdate);
void UpdateEqualizers(bool forceUpdate);
void ApplyEqualizer(orfanidis_eq::eq1* equalizer, size_t sampleCount);
void UpdateTargetSampleRate();
protected:
virtual void StreamState(bool saving) override;
public:
SoundMixer(shared_ptr<Console> console);
~SoundMixer();
void SetNesModel(NesModel model);
void Reset();
void PlayAudioBuffer(uint32_t cycle);
void AddDelta(AudioChannel channel, uint32_t time, int16_t delta);
void StartRecording(string filepath);
void StopRecording();
bool IsRecording();
//For NSF/NSFe
uint32_t GetMuteFrameCount();
void ResetMuteFrameCount();
void SetFadeRatio(double fadeRatio);
OggMixer* GetOggMixer();
void SetSendAudioSample(retro_audio_sample_batch_t sendAudioSample)
{
_sendAudioSample = sendAudioSample;
}
void SetSkipMode(bool skip)
{
_skipMode = skip;
}
};