bnkf.c
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/*====================================================================
* bnkf.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* This is UNPUBLISHED PROPRIETARY SOURCE CODE of Silicon Graphics,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 Unpublished - rights reserved under the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>
/*
* ### when the file format settles down a little, I'll remove these
* ### for efficiency.
*/
static void _bnkfPatchBank(ALBank *bank, int offset, int table);
static void _bnkfPatchInst(ALInstrument *i, int offset, int table);
static void _bnkfPatchSound(ALSound *s, int offset, int table);
static void _bnkfPatchWaveTable(ALWaveTable *w, int offset, int table);
void alSeqFileNew(ALSeqFile *file)
{
int offset = (int) file;
int i;
/* ### check the revision in debug libraries */
/*
* patch the file so that offsets are pointers
*/
for (i = 0; i < file->seqCount; i++) {
file->seqArray[i].offset = (char *)((char *)file->seqArray[i].offset + offset);
}
}
void alBnkfNew(ALBankFile *file, char *table)
{
int offset = (int) file;
int woffset = (int) table;
int i,j,k;
/* ### check the revision in debug libraries */
/*
* patch the file so that offsets are pointers
*/
for (i = 0; i < file->bankCount; i++) {
file->bankArray[i] = (ALBank *)((char *)file->bankArray[i] + offset);
_bnkfPatchBank(file->bankArray[i], offset, woffset);
}
}
void _bnkfPatchBank(ALBank *bank, int offset, int table)
{
int i;
if (bank->flags)
return;
bank->flags = 1;
for (i = 0; i < bank->progCount; i++) {
bank->progArray[i] = (ALInstrument *)((char *)bank->progArray[i] +
offset);
_bnkfPatchInst(bank->progArray[i], offset, table);
}
}
void _bnkfPatchInst(ALInstrument *inst, int offset, int table)
{
int i;
if (inst->flags)
return;
inst->flags = 1;
for (i = 0; i < inst->soundCount; i++) {
inst->soundArray[i] = (ALSound *)((char *)inst->soundArray[i] +
offset);
_bnkfPatchSound(inst->soundArray[i], offset, table);
}
}
void _bnkfPatchSound(ALSound *s, int offset, int table)
{
int i;
if (s->flags)
return;
s->flags = 1;
s->envelope = (ALEnvelope *)((char *)s->envelope + offset);
s->keyMap = (ALKeyMap *)((char *)s->keyMap + offset);
for (i = 0; i < s->waveCount; i++) {
s->wavetable[i] = (ALWaveTable *)((char *)s->wavetable[i] +
offset);
_bnkfPatchWaveTable(s->wavetable[i], offset, table);
}
}
void _bnkfPatchWaveTable(ALWaveTable *w, int offset, int table)
{
if (w->flags)
return;
w->flags = 1;
w->base += table;
w->book = (ALADPCMBook *)((char *)w->book + offset);
if (w->loop) {
w->loop = (ALADPCMloop *)((char *)w->loop + offset);
}
}