mirror of
https://github.com/kichikuou/xsystem35-sdl2.git
synced 2026-09-30 10:48:21 +03:00
85 lines
2.1 KiB
C
85 lines
2.1 KiB
C
/*
|
|
* bgi.c: BGI (BGM information) parser
|
|
*
|
|
* Copyright (C) 1997-1998 Masaki Chikama (Wren) <chikama@kasumi.ipl.mech.nagoya-u.ac.jp>
|
|
* 1998- <masaki-c@is.aist-nara.ac.jp>
|
|
* 2021 kichikuou <KichikuouChrome@gmail.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*
|
|
*/
|
|
#include "config.h"
|
|
|
|
#include <stdio.h>
|
|
|
|
#include "portab.h"
|
|
#include "system.h"
|
|
#include "bgi.h"
|
|
|
|
#define BGI_MAX 100
|
|
|
|
static int bgi_nfile;
|
|
static bgi_t bgi_data[BGI_MAX];
|
|
|
|
static char *bgi_gets(char *buf, int n, FILE *fp) {
|
|
char *s = buf;
|
|
int c;
|
|
while (--n > 0 && (c = fgetc(fp)) != EOF) {
|
|
c = c >> 4 | (c & 0xf) << 4; // decrypt
|
|
*s++ = c;
|
|
if (c == '\n')
|
|
break;
|
|
}
|
|
if (s == buf && c == EOF)
|
|
return NULL;
|
|
*s = '\0';
|
|
return buf;
|
|
}
|
|
|
|
int bgi_read(const char *path) {
|
|
if (!path)
|
|
return NG;
|
|
|
|
FILE *fp = fopen(path, "rb");
|
|
if (!fp) {
|
|
WARNING("Could not open %s", path);
|
|
return NG;
|
|
}
|
|
|
|
char buf[100];
|
|
while (bgi_nfile < BGI_MAX && bgi_gets(buf, sizeof(buf), fp)) {
|
|
int terminator;
|
|
if (sscanf(buf, " %d, %d, %d, %d, %d",
|
|
&bgi_data[bgi_nfile].no,
|
|
&bgi_data[bgi_nfile].loopno,
|
|
&bgi_data[bgi_nfile].looptop,
|
|
&bgi_data[bgi_nfile].len,
|
|
&terminator) != 5
|
|
|| terminator != -1) {
|
|
continue;
|
|
}
|
|
bgi_nfile++;
|
|
}
|
|
return OK;
|
|
}
|
|
|
|
bgi_t *bgi_find(int no) {
|
|
for (int i = 0; i < bgi_nfile; i++) {
|
|
if (bgi_data[i].no == no)
|
|
return &bgi_data[i];
|
|
}
|
|
return NULL;
|
|
}
|