synstartvoice.c
1.6 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
/*====================================================================
* synstartvoice.c
*
* Copyright 1995, 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* This is UNPUBLISHED PROPRIETARY SOURCE CODE of Silicon Graphics,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 Unpublished - rights reserved under the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 "synthInternals.h"
#include <os_internal.h>
#include <ultraerror.h>
void alSynStartVoice(ALSynth *synth, ALVoice *v, ALWaveTable *table)
{
ALStartParam *update;
ALFilter *f;
if (v->pvoice) {
update = (ALStartParam *)__allocParam();
ALFailIf(update == 0, ERR_ALSYN_NO_UPDATE);
/*
* send the start message to the motion control filter
*/
update->delta = synth->paramSamples + v->pvoice->offset;
update->type = AL_FILTER_START_VOICE;
update->wave = table;
update->next = 0;
update->unity = v->unityPitch;
f = v->pvoice->channelKnob;
(*f->setParam)(f, AL_FILTER_ADD_UPDATE, update);
}
}