auxbus.c
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/*====================================================================
* auxbus.c
*
* Copyright 1993, Silicon Graphics, Inc.
* All Rights Reserved.
*
* This is UNPUBLISHED PROPRIETARY SOURCE CODE of Silicon Graphics,
* Inc.; the contents of this file may not be disclosed to third
* parties, copied or duplicated in any form, in whole or in part,
* without the prior written permission of Silicon Graphics, Inc.
*
* RESTRICTED RIGHTS LEGEND:
* Use, duplication or disclosure by the Government is subject to
* restrictions as set forth in subdivision (c)(1)(ii) of the Rights
* in Technical Data and Computer Software clause at DFARS
* 252.227-7013, and/or in similar or successor clauses in the FAR,
* DOD or NASA FAR Supplement. Unpublished - rights reserved under the
* Copyright Laws of the United States.
*====================================================================*/
#include <libaudio.h>
#include "synthInternals.h"
Acmd *alAuxBusPull(void *filter, s16 *outp, s32 outCount, s32 sampleOffset,
Acmd *p)
{
Acmd *ptr = p;
ALAuxBus *m = (ALAuxBus *)filter;
ALFilter **sources = m->sources;
s32 i;
/*
* clear the output buffers here
*/
aClearBuffer(ptr++, AL_AUX_L_OUT, outCount<<1);
aClearBuffer(ptr++, AL_AUX_R_OUT, outCount<<1);
for (i = 0; i < m->sourceCount; i++) {
ptr = (sources[i]->handler)(sources[i], outp, outCount, sampleOffset,
ptr);
}
return ptr;
}
s32 alAuxBusParam(void *filter, s32 paramID, void *param)
{
ALAuxBus *m = (ALAuxBus *) filter;
ALFilter **sources = m->sources;
switch (paramID) {
case (AL_FILTER_ADD_SOURCE):
sources[m->sourceCount++] = (ALFilter *) param;
break;
default:
/* ??? */
break;
}
return 0;
}