mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-10 23:32:09 +00:00
126 lines
2.7 KiB
C
126 lines
2.7 KiB
C
/*
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wav.c
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wav file loading
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Copyright (C) 1996-1997 Id Software, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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static __attribute__ ((unused)) const char rcsid[] =
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"$Id$";
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#ifdef HAVE_STRING_H
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# include <string.h>
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#endif
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#ifdef HAVE_STRINGS_H
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# include <strings.h>
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#endif
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#include "QF/cvar.h"
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#include "QF/sound.h"
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#include "QF/sys.h"
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#include "QF/qendian.h"
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#include "QF/quakefs.h"
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#include "QF/riff.h"
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#include "snd_render.h"
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void
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SND_LoadWav (QFile *file, sfx_t *sfx, char *realname)
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{
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riff_t *riff;
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riff_d_chunk_t **ck;
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riff_format_t *fmt;
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riff_d_format_t *dfmt = 0;
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riff_data_t *data = 0;
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riff_cue_t *cue;
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riff_d_cue_t *dcue;
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riff_d_cue_point_t *cp = 0;
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riff_list_t *list;
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riff_d_chunk_t **lck;
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riff_ltxt_t *ltxt;
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riff_d_ltxt_t *dltxt = 0;
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int loop_start = -1, sample_count = -1;
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if (!(riff = riff_read (file))) {
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Sys_Printf ("bad riff file\n");
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return;
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}
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for (ck = riff->chunks; *ck; ck++) {
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RIFF_SWITCH ((*ck)->name) {
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case RIFF_CASE ('f','m','t',' '):
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fmt = (riff_format_t *) *ck;
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dfmt = (riff_d_format_t *) fmt->fdata;
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break;
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case RIFF_CASE ('d','a','t','a'):
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data = (riff_data_t *) *ck;
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break;
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case RIFF_CASE ('c','u','e',' '):
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cue = (riff_cue_t *) *ck;
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dcue = cue->cue;
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if (dcue->count)
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cp = &dcue->cue_points[dcue->count - 1];
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break;
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case RIFF_CASE ('L','I','S','T'):
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list = (riff_list_t *) *ck;
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RIFF_SWITCH (list->name) {
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case RIFF_CASE ('a','d','t','l'):
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for (lck = list->chunks; *lck; lck++) {
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RIFF_SWITCH ((*lck)->name) {
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case RIFF_CASE ('l','t','x','t'):
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ltxt = (riff_ltxt_t *) *ck;
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dltxt = <xt->ltxt;
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break;
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}
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}
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break;
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}
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break;
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}
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}
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if (!dfmt) {
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Sys_Printf ("missing format chunk\n");
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goto bail;
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}
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if (!data) {
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Sys_Printf ("missing data chunk\n");
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goto bail;
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}
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if (dltxt)
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sample_count = dltxt->len;
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if (cp)
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loop_start = cp->sample_offset;
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bail:
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Qclose (file);
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riff_free (riff);
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}
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