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Amiga Format CD 41
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Amiga Format CD41 (1999-06)(Future Publishing)(GB)[!][issue 1999-07].iso
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sounddt41src
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soundclassext.h
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C/C++ Source or Header
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1999-04-19
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#ifndef DATATYPES_SOUNDCLASSEXT_H
#define DATATYPES_SOUNDCLASSEXT_H
/*
** $VER: soundclassext.h 41.1 (28.11.98)
** Includes Release 41.1
**
** Interface definitions for DataType sound objects -
** v41 extensions
**
** (C) Copyright 1998 by Stephan Rupprecht
** All Rights Reserved
*/
#ifndef DATATYPES_SOUNDCLASS_H
#include <datatypes/soundclass.h>
#endif
/****************************************************************************/
/* type of sample, one of the definitions below */
#define SDTA_SampleType (SDTA_Dummy + 30)
/* describes the stereo field when playing a mono sample on two stereo
channels. range 0 - 0x10000. 0 mutes the right channel, 0x10000 the
left one, 0x8000 centers the sample in the stereo field (default).
This attribute may affect a playing sound. */
#define SDTA_Panning (SDTA_Dummy + 31)
/* set and get sample frequency. This attribute may affect a playing sound. */
#define SDTA_Frequency (SDTA_Dummy + 32)
/****************************************************************************/
/* definitions for SDTA_SampleType (all types are signed) */
enum {
SDTST_M8S, // 8bit mono sample (default)
SDTST_S8S, // 8bit stereo sample (samplewise left/right)
SDTST_M16S, // same as SDTST_M8S but 16bit
SDTST_S16S, // same as SDTST_S8S but 16bit
};
/****************************************************************************/
/* some handy macros */
#define SDTM_ISSTEREO( SampleType ) ( ( SampleType ) & 1 )
#define SDTM_CHANNELS( SampleType ) ( SDTM_ISSTEREO( SampleType ) + 1 )
#define SDTM_BYTESPERSAMPLE( ST ) ( ( ( ST ) >= SDTST_M16S ) ? 2 : 1 )
#define SDTM_BYTESPERPOINT( ST ) ( SDTM_CHANNELS( ST ) * SDTM_BYTESPERSAMPLE( ST ) )
/****************************************************************************/
#endif