n_synsetpitch.c
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/*====================================================================
*
* 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* This is UNPUBLISHED PROPRIETARY SOURCE CODE of Silicon Graphics,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 Unpublished - rights reserved under the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 <os_internal.h>
#include <ultraerror.h>
#include "n_synthInternals.h"
void n_alSynSetPitch( N_ALVoice *v, f32 pitch)
{
ALParam *update;
if (v->pvoice) {
/*
* get new update struct from the free list
*/
update = __n_allocParam();
ALFailIf(update == 0, ERR_ALSYN_NO_UPDATE);
/*
* set offset and pitch data
*/
#ifdef SAMPLE_ROUND
update->delta = SAMPLE184( n_syn->paramSamples + v->pvoice->offset);
#else
update->delta = n_syn->paramSamples + v->pvoice->offset;
#endif
update->type = AL_FILTER_SET_PITCH;
update->data.f = pitch;
update->next = 0;
n_alEnvmixerParam(v->pvoice, AL_FILTER_ADD_UPDATE, update);
}
}