46 lines
1.5 KiB
C++
46 lines
1.5 KiB
C++
//========= Copyright Valve Corporation, All rights reserved. ============//
|
|
//
|
|
// Purpose:
|
|
//
|
|
// $NoKeywords: $
|
|
//=============================================================================//
|
|
|
|
#ifndef SND_WAVE_DATA_H
|
|
#define SND_WAVE_DATA_H
|
|
#ifdef _WIN32
|
|
#pragma once
|
|
#endif
|
|
|
|
#include "snd_audio_source.h"
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose: Linear iterator over source data.
|
|
// Keeps track of position in source, and maintains necessary buffers
|
|
//-----------------------------------------------------------------------------
|
|
abstract_class IWaveData
|
|
{
|
|
public:
|
|
virtual ~IWaveData( void ) {}
|
|
virtual CAudioSource &Source( void ) = 0;
|
|
virtual int ReadSourceData( void **pData, int sampleIndex, int sampleCount, char copyBuf[AUDIOSOURCE_COPYBUF_SIZE] ) = 0;
|
|
virtual bool IsReadyToMix() = 0;
|
|
};
|
|
|
|
abstract_class IWaveStreamSource
|
|
{
|
|
public:
|
|
virtual int UpdateLoopingSamplePosition( int samplePosition ) = 0;
|
|
virtual void UpdateSamples( char *pData, int sampleCount ) = 0;
|
|
virtual int GetLoopingInfo( int *pLoopBlock, int *pNumLeadingSamples, int *pNumTrailingSamples ) = 0;
|
|
};
|
|
|
|
class IFileReadBinary;
|
|
class CSfxTable;
|
|
|
|
extern IWaveData *CreateWaveDataStream( CAudioSource &source, IWaveStreamSource *pStreamSource, const char *pFileName, int dataStart, int dataSize, CSfxTable *pSfx, int startOffset );
|
|
extern IWaveData *CreateWaveDataMemory( CAudioSource &source );
|
|
|
|
void PrefetchDataStream( const char *pFileName, int dataOffset, int dataSize );
|
|
|
|
#endif // SND_WAVE_DATA_H
|