80 lines
2 KiB
C++
80 lines
2 KiB
C++
#pragma once
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#include "stdafx.h"
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#include "EmulationSettings.h"
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#include "../Utilities/LowPassFilter.h"
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#include "../Utilities/blip_buf.h"
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#include "../Utilities/SimpleLock.h"
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#include "IAudioDevice.h"
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#include "Snapshotable.h"
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#include "StereoPanningFilter.h"
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#include "StereoDelayFilter.h"
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#include "ReverbFilter.h"
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#include "WaveRecorder.h"
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class SoundMixer : public Snapshotable
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{
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public:
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static const uint32_t CycleLength = 1000;
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static const uint32_t BitsPerSample = 16;
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private:
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static unique_ptr<WaveRecorder> _waveRecorder;
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static SimpleLock _waveRecorderLock;
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static double _fadeRatio;
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static uint32_t _muteFrameCount;
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static IAudioDevice* AudioDevice;
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static const uint32_t MaxSampleRate = 48000;
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static const uint32_t MaxSamplesPerFrame = MaxSampleRate / 60 * 4; //x4 to allow CPU overclocking up to 10x
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static const uint32_t MaxChannelCount = 11;
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LowPassFilter _lowPassFilter;
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StereoPanningFilter _stereoPanning;
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StereoDelayFilter _stereoDelay;
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ReverbFilter _reverbFilter;
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int16_t _previousOutput = 0;
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vector<uint32_t> _timestamps;
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int16_t _channelOutput[MaxChannelCount][CycleLength];
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int16_t _currentOutput[MaxChannelCount];
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blip_t* _blipBuf;
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int16_t *_outputBuffer;
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double _volumes[MaxChannelCount];
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NesModel _model;
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uint32_t _sampleRate;
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uint32_t _clockRate;
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double GetChannelOutput(AudioChannel channel);
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int16_t GetOutputVolume();
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void EndFrame(uint32_t time);
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void UpdateRates(bool forceUpdate);
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protected:
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virtual void StreamState(bool saving);
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public:
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SoundMixer();
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~SoundMixer();
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void SetNesModel(NesModel model);
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void Reset();
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void PlayAudioBuffer(uint32_t cycle);
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void AddDelta(AudioChannel channel, uint32_t time, int16_t delta);
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static void StartRecording(string filepath);
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static void StopRecording();
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static bool IsRecording();
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//For NSF/NSFe
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static uint32_t GetMuteFrameCount();
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static void ResetMuteFrameCount();
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static void SetFadeRatio(double fadeRatio);
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static void StopAudio(bool clearBuffer = false);
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static void RegisterAudioDevice(IAudioDevice *audioDevice);
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};
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