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75 lines
2.6 KiB
C++
75 lines
2.6 KiB
C++
//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// Purpose:
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//
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// $Workfile: $
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// $Date: $
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//
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//-----------------------------------------------------------------------------
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// $Log: $
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//
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// $NoKeywords: $
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//=============================================================================//
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#ifndef SND_WAVE_MIXER_PRIVATE_H
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#define SND_WAVE_MIXER_PRIVATE_H
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#pragma once
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#include "snd_audio_source.h"
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#include "snd_wave_mixer.h"
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#include "sound_private.h"
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#include "snd_wave_source.h"
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class IWaveData;
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abstract_class CAudioMixerWave : public CAudioMixer
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{
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public:
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CAudioMixerWave( IWaveData *data );
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virtual ~CAudioMixerWave( void );
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int MixDataToDevice( IAudioDevice *pDevice, channel_t *pChannel, int sampleCount, int outputRate, int outputOffset );
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int SkipSamples( channel_t *pChannel, int sampleCount, int outputRate, int outputOffset );
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bool ShouldContinueMixing( void );
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virtual void Mix( IAudioDevice *pDevice, channel_t *pChannel, void *pData, int outputOffset, int inputOffset, fixedint fracRate, int outCount, int timecompress ) = 0;
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virtual int GetOutputData( void **pData, int sampleCount, char copyBuf[AUDIOSOURCE_COPYBUF_SIZE] );
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virtual CAudioSource* GetSource( void );
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virtual int GetSamplePosition( void );
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virtual float ModifyPitch( float pitch );
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virtual float GetVolumeScale( void );
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// Move the current position to newPosition
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virtual void SetSampleStart( int newPosition );
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// End playback at newEndPosition
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virtual void SetSampleEnd( int newEndPosition );
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virtual void SetStartupDelaySamples( int delaySamples );
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// private helper routines
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char * LoadMixBuffer( channel_t *pChannel, int sample_load_request, int *psamples_loaded, char copyBuf[AUDIOSOURCE_COPYBUF_SIZE] );
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int MixDataToDevice_( IAudioDevice *pDevice, channel_t *pChannel, int sampleCount, int outputRate, int outputOffset, bool bSkipAllSamples );
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int GetSampleLoadRequest( double rate, int sampleCount, bool bInterpolated_pitch );
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virtual bool IsReadyToMix();
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virtual int GetPositionForSave() { return GetSamplePosition(); }
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virtual void SetPositionFromSaved( int savedPosition ) { SetSampleStart(savedPosition); }
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protected:
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double m_fsample_index; // index of next sample to output
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int m_sample_max_loaded; // count of total samples loaded - ie: the index of
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// the next sample to be loaded.
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int m_sample_loaded_index; // index of last sample loaded
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IWaveData *m_pData;
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double m_forcedEndSample;
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bool m_finished;
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int m_delaySamples;
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};
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#endif // SND_WAVE_MIXER_PRIVATE_H
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