source: downloads/openal-0.0.8/src/al_mixfunc.h @ 53

/* -*- mode: C; tab-width:8; c-basic-offset:8 -*-
 * vi:set ts=8:
 *
 * al_mixfunc.h
 *
 * Mixfuncs --- specialized mixing functions --- are unrolled, hopefully
 * easily optimizable mixing functions that take advantage of knowing the
 * number of mixing streams passed to them.  Used in conjunction with the
 * mixmanager, this provides an interface for the library to plug in well
 * optimized mixing functions.
 */
#ifndef _AL_MIXFUNC_H_
#define _AL_MIXFUNC_H_

#include "al_types.h"
#include "al_mixer.h"

typedef struct _AL_MixFunc {
        void ( *funcs[ MAXMIXSOURCES + 1 ] )( ALshort *dst,
                                              alMixEntry *entries );
        void ( *func_n )( ALshort *dst,
                          alMixEntry *entries,
                          ALuint numents );
        ALuint max;
} ALMixFunc;

/*
 * _alMixFuncInit initializes the already allocated ALMixFunc object (mf) to
 * contain at least size mixing functions.
 */
ALboolean _alMixFuncInit( ALMixFunc *mf, ALuint size );

/*
 * _alMixFuncDestroy performs any needed finalization on the ALMixFunc object
 * mf.
 */
void _alMixFuncDestroy( ALMixFunc *mf );

#endif /* _AL_MIXFUNC_H_ */