/***************************************************************************

 *

 * softmix.h

 *

 ***************************************************************************

 *

 * high level interface to software mixing routines

 *

 ***************************************************************************/



#ifndef SOFTMIX_H_INCLUDED

#define SOFTMIX_H_INCLUDED



/*

 * includes

 */



/*

 * defines

 */



#define	BEN2S(x)	(logTable [ (unsigned  char)(x)      ])

#define	S2BEN(x)	(iLogTable[((unsigned short)(x)) >> 3])



/*

 * typedefs

 */



/*

 * structures

 */



struct resSample

{

	unsigned long flags;

	unsigned long length;

	unsigned long lpStart;

	unsigned long lpEnd;

	unsigned long freq;

	unsigned long fade;

	unsigned char data[1];

};



struct resSampleBlock

{

	unsigned long flags;

	unsigned long length;

	unsigned long lpStart;

	unsigned long lpEnd;

	unsigned long freq;

	unsigned long fade;

	unsigned long blockCount;

	unsigned long blockAlign;

	unsigned char data[1];

};



/*

 * globals

 */



extern signed short logTable[];

extern unsigned char iLogTable[];



/*

 * function prototypes

 */



extern int	SoftMixQuery(int *numChannels,int *mode,int *freq);

extern int	SoftMixOpen(int numChannels,int mode,int freq,int flags);

extern void	SoftMixClose(void);

extern int	SoftMixRegisterSample(char *sampleName);

extern int  	SoftMixRegisterSampleDirect(unsigned short *data,int len,int lpStart,int lpEnd,int freq);

extern int	SoftMixRegisterSampleByID(int id);

extern void	SoftMixUnRegisterSample(int sampleHandle);

extern void	SoftMixUnRegisterAll(void);

extern void	SoftMixQuerySample(int sampleHandle,struct sampleParms *s);

extern void	SoftMixUpdateSample(int sampleHandle,struct sampleParms *s);

extern void	SoftMixSetChannelSample(int channel,int sampleHandle);

extern void	SoftMixSetChannelFreq(int channel,int freq);

extern void	SoftMixSetChannelVol(int channel,int vol);

extern void	SoftMixSetChannelPan(int channel,int pan);

extern void	SoftMixSetChannelOffset(int channel,int offset);

extern int	SoftMixGetChannelOffset(int channel);

extern void	SoftMixSetChannelStatus(int channel,int status);

extern int	SoftMixGetChannelStatus(int channel);

extern int	SoftMixGetSampleCount(void);

extern void	SoftMixDoMix(signed long *mixBuf,unsigned long count);

extern void	SoftMixDoMixDown(signed long *mixBuf,unsigned char *dest,unsigned long count);

extern int	SoftMixReverbOpen(int size);

extern void	SoftMixReverbSetDepth(int d);

extern void	SoftMixReverbClose(void);

extern void	SoftMixUpdateSampleData(int sampleHandle,unsigned short *data,int len);



extern void	SoftMixSetCompressionHandler(struct resSample *(*ptr)(struct resSample *));

extern void	SoftMixSetTmpBuffer(unsigned char *buf,int len);



#endif