Modified source engine (2017) developed by valve and leaked in 2020. Not for commercial purporses
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//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
// $Workfile: $
// $Date: $
//
//-----------------------------------------------------------------------------
// $Log: $
//
// $NoKeywords: $
//=============================================================================//
#ifndef SND_WAVE_MIXER_PRIVATE_H
#define SND_WAVE_MIXER_PRIVATE_H
#pragma once
#include "snd_audio_source.h"
#include "snd_wave_mixer.h"
#include "sound_private.h"
#include "snd_wave_source.h"
class IWaveData;
abstract_class CAudioMixerWave : public CAudioMixer
{
public:
CAudioMixerWave( IWaveData *data );
virtual ~CAudioMixerWave( void );
int MixDataToDevice( IAudioDevice *pDevice, channel_t *pChannel, int sampleCount, int outputRate, int outputOffset );
int SkipSamples( channel_t *pChannel, int sampleCount, int outputRate, int outputOffset );
bool ShouldContinueMixing( void );
virtual void Mix( IAudioDevice *pDevice, channel_t *pChannel, void *pData, int outputOffset, int inputOffset, fixedint fracRate, int outCount, int timecompress ) = 0;
virtual int GetOutputData( void **pData, int sampleCount, char copyBuf[AUDIOSOURCE_COPYBUF_SIZE] );
virtual CAudioSource* GetSource( void );
virtual int GetSamplePosition( void );
virtual float ModifyPitch( float pitch );
virtual float GetVolumeScale( void );
// Move the current position to newPosition
virtual void SetSampleStart( int newPosition );
// End playback at newEndPosition
virtual void SetSampleEnd( int newEndPosition );
virtual void SetStartupDelaySamples( int delaySamples );
// private helper routines
char * LoadMixBuffer( channel_t *pChannel, int sample_load_request, int *psamples_loaded, char copyBuf[AUDIOSOURCE_COPYBUF_SIZE] );
int MixDataToDevice_( IAudioDevice *pDevice, channel_t *pChannel, int sampleCount, int outputRate, int outputOffset, bool bSkipAllSamples );
int GetSampleLoadRequest( double rate, int sampleCount, bool bInterpolated_pitch );
virtual bool IsReadyToMix();
virtual int GetPositionForSave() { return GetSamplePosition(); }
virtual void SetPositionFromSaved( int savedPosition ) { SetSampleStart(savedPosition); }
protected:
double m_fsample_index; // index of next sample to output
int m_sample_max_loaded; // count of total samples loaded - ie: the index of
// the next sample to be loaded.
int m_sample_loaded_index; // index of last sample loaded
IWaveData *m_pData;
double m_forcedEndSample;
bool m_finished;
int m_delaySamples;
};
#endif // SND_WAVE_MIXER_PRIVATE_H