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* This is UNPUBLISHED PROPRIETARY SOURCE CODE of Silicon Graphics,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 Unpublished - rights reserved under the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>
#include <os_internal.h>
#include <ultraerror.h>
/*
* ### when the file format settles down a little, I'll remove these
* ### for efficiency.
*/
static void _bnkfPatchBank(ALBank *bank, s32 offset, s32 table);
static void _bnkfPatchInst(ALInstrument *i, s32 offset, s32 table);
static void _bnkfPatchSound(ALSound *s, s32 offset, s32 table);
static void _bnkfPatchWaveTable(ALWaveTable *w, s32 offset, s32 table);
void alSeqFileNew(ALSeqFile *file, u8 *base)
{
s32 offset = (s32) base;
s32 i;
/*
* patch the file so that offsets are pointers
*/
for (i = 0; i < file->seqCount; i++) {
file->seqArray[i].offset = (u8 *)((u8 *)file->seqArray[i].offset + offset);
}
}
void alBnkfNew(ALBankFile *file, u8 *table)
{
s32 offset = (s32) file;
s32 woffset = (s32) table;
s32 i;
/*
* check the file format revision in debug libraries
*/
ALFailIf(file->revision != AL_BANK_VERSION, ERR_ALBNKFNEW);
/*
* patch the file so that offsets are pointers
*/
for (i = 0; i < file->bankCount; i++) {
file->bankArray[i] = (ALBank *)((u8 *)file->bankArray[i] + offset);
if(file->bankArray[i])
_bnkfPatchBank(file->bankArray[i], offset, woffset);
}
}
void _bnkfPatchBank(ALBank *bank, s32 offset, s32 table)
{
s32 i;
if (bank->flags)
return;
bank->flags = 1;
if (bank->percussion) {
bank->percussion = (ALInstrument *)((u8 *)bank->percussion + offset);
_bnkfPatchInst(bank->percussion, offset, table);
}
for (i = 0; i < bank->instCount; i++) {
bank->instArray[i] = (ALInstrument *)((u8 *)bank->instArray[i] +
offset);
if(bank->instArray[i])
_bnkfPatchInst(bank->instArray[i], offset, table);
}
}
void _bnkfPatchInst(ALInstrument *inst, s32 offset, s32 table)
{
s32 i;
if (inst->flags)
return;
inst->flags = 1;
for (i = 0; i < inst->soundCount; i++) {
inst->soundArray[i] = (ALSound *)((u8 *)inst->soundArray[i] +
offset);
_bnkfPatchSound(inst->soundArray[i], offset, table);
}
}
void _bnkfPatchSound(ALSound *s, s32 offset, s32 table)
{
if (s->flags)
return;
s->flags = 1;
s->envelope = (ALEnvelope *)((u8 *)s->envelope + offset);
s->keyMap = (ALKeyMap *)((u8 *)s->keyMap + offset);
s->wavetable = (ALWaveTable *)((u8 *)s->wavetable + offset);
_bnkfPatchWaveTable(s->wavetable, offset, table);
}
void _bnkfPatchWaveTable(ALWaveTable *w, s32 offset, s32 table)
{
if (w->flags)
return;
w->flags = 1;
w->base += table;
/* sct 2/14/96 - patch wavetable loop info based on type. */
if (w->type == AL_ADPCM_WAVE)
{
w->waveInfo.adpcmWave.book = (ALADPCMBook *)((u8 *)w->waveInfo.adpcmWave.book + offset);
if (w->waveInfo.adpcmWave.loop)
w->waveInfo.adpcmWave.loop = (ALADPCMloop *)((u8 *)w->waveInfo.adpcmWave.loop + offset);
}
else if (w->type == AL_RAW16_WAVE)
{
if (w->waveInfo.rawWave.loop)
w->waveInfo.rawWave.loop = (ALRawLoop *)((u8 *)w->waveInfo.rawWave.loop + offset);
}
}