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/* Extended Module Player
* Copyright (C) 1996-2010 Claudio Matsuoka and Hipolito Carraro Jr
*
* This file is part of the Extended Module Player and is distributed
* under the terms of the GNU General Public License. See doc/COPYING
* for more information.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include "load.h"
#include "iff.h"
#define MAGIC_FORM MAGIC4('F','O','R','M')
#define MAGIC_EMOD MAGIC4('E','M','O','D')
static int emod_test (FILE *, char *, const int);
static int emod_load (struct xmp_context *, FILE *, const int);
struct xmp_loader_info emod_loader = {
"EMOD",
"Quadra Composer",
emod_test,
emod_load
};
static int emod_test(FILE *f, char *t, const int start)
{
if (read32b(f) != MAGIC_FORM)
return -1;
read32b(f);
if (read32b(f) != MAGIC_EMOD)
return -1;
read_title(f, t, 0);
return 0;
}
static uint8 *reorder;
static void get_emic(struct xmp_context *ctx, int size, FILE *f)
{
struct xmp_player_context *p = &ctx->p;
struct xmp_mod_context *m = &p->m;
int i, ver;
ver = read16b(f);
fread(m->name, 1, 20, f);
fread(m->author, 1, 20, f);
m->xxh->bpm = read8(f);
m->xxh->ins = read8(f);
m->xxh->smp = m->xxh->ins;
m->xxh->flg |= XXM_FLG_MODRNG;
snprintf(m->type, XMP_NAMESIZE, "EMOD v%d (Quadra Composer)", ver);
MODULE_INFO();
INSTRUMENT_INIT();
reportv(ctx, 1, " Instrument name Len LBeg LEnd L Vol Fin\n");
for (i = 0; i < m->xxh->ins; i++) {
m->xxi[i] = calloc(sizeof (struct xxm_instrument), 1);
read8(f); /* num */
m->xxi[i][0].vol = read8(f);
m->xxs[i].len = 2 * read16b(f);
fread(m->xxih[i].name, 1, 20, f);
m->xxs[i].flg = read8(f) & 1 ? WAVE_LOOPING : 0;
m->xxi[i][0].fin = read8(f);
m->xxs[i].lps = 2 * read16b(f);
m->xxs[i].lpe = m->xxs[i].lps + 2 * read16b(f);
read32b(f); /* ptr */
m->xxih[i].nsm = 1;
m->xxi[i][0].pan = 0x80;
m->xxi[i][0].sid = i;
if (V(1) && (strlen((char *)m->xxih[i].name) || (m->xxs[i].len > 2))) {
report ("[%2X] %-20.20s %05x %05x %05x %c V%02x %+d\n",
i, m->xxih[i].name, m->xxs[i].len, m->xxs[i].lps,
m->xxs[i].lpe, m->xxs[i].flg & WAVE_LOOPING ? 'L' : ' ',
m->xxi[i][0].vol, m->xxi[i][0].fin >> 4);
}
}
read8(f); /* pad */
m->xxh->pat = read8(f);
m->xxh->trk = m->xxh->pat * m->xxh->chn;
PATTERN_INIT();
reorder = calloc(1, 256);
for (i = 0; i < m->xxh->pat; i++) {
reorder[read8(f)] = i;
PATTERN_ALLOC(i);
m->xxp[i]->rows = read8(f) + 1;
TRACK_ALLOC(i);
fseek(f, 20, SEEK_CUR); /* skip name */
read32b(f); /* ptr */
}
m->xxh->len = read8(f);
reportv(ctx, 0, "Module length : %d\n", m->xxh->len);
for (i = 0; i < m->xxh->len; i++)
m->xxo[i] = reorder[read8(f)];
}
static void get_patt(struct xmp_context *ctx, int size, FILE *f)
{
struct xmp_player_context *p = &ctx->p;
struct xmp_mod_context *m = &p->m;
int i, j, k;
struct xxm_event *event;
uint8 x;
reportv(ctx, 0, "Stored patterns: %d ", m->xxh->pat);
for (i = 0; i < m->xxh->pat; i++) {
for (j = 0; j < m->xxp[i]->rows; j++) {
for (k = 0; k < m->xxh->chn; k++) {
event = &EVENT(i, k, j);
event->ins = read8(f);
event->note = read8(f) + 1;
if (event->note != 0)
event->note += 36;
event->fxt = read8(f) & 0x0f;
event->fxp = read8(f);
/* Fix effects */
switch (event->fxt) {
case 0x04:
x = event->fxp;
event->fxp = (x & 0xf0) | ((x << 1) & 0x0f);
break;
case 0x09:
event->fxt <<= 1;
break;
case 0x0b:
x = event->fxt;
event->fxt = 16 * (x / 10) + x % 10;
break;
}
}
}
reportv(ctx, 0, ".");
}
reportv(ctx, 0, "\n");
}
static void get_8smp(struct xmp_context *ctx, int size, FILE *f)
{
struct xmp_player_context *p = &ctx->p;
struct xmp_mod_context *m = &p->m;
int i;
reportv(ctx, 0, "Stored samples : %d ", m->xxh->smp);
for (i = 0; i < m->xxh->smp; i++) {
xmp_drv_loadpatch(ctx, f, i, m->c4rate, 0, &m->xxs[i], NULL);
reportv(ctx, 0, ".");
}
reportv(ctx, 0, "\n");
}
static int emod_load(struct xmp_context *ctx, FILE *f, const int start)
{
struct xmp_player_context *p = &ctx->p;
struct xmp_mod_context *m = &p->m;
LOAD_INIT();
read32b(f); /* FORM */
read32b(f);
read32b(f); /* EMOD */
/* IFF chunk IDs */
iff_register("EMIC", get_emic);
iff_register("PATT", get_patt);
iff_register("8SMP", get_8smp);
/* Load IFF chunks */
while (!feof(f))
iff_chunk(ctx, f);
iff_release();
free(reorder);
return 0;
}
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