Genesis-Plus-GX/source/gx/config.c

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/****************************************************************************
* config.c
*
* Genesis Plus GX configuration file support
*
* Eke-Eke (2008)
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*
* 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
*
***************************************************************************/
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#include "shared.h"
#include "menu.h"
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void config_save(void)
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{
/* open configuration file */
char fname[MAXPATHLEN];
sprintf (fname, "%s/config.ini", DEFAULT_PATH);
FILE *fp = fopen(fname, "wb");
if (fp)
{
/* write file */
fwrite(&config, sizeof(config), 1, fp);
fclose(fp);
}
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}
void config_load(void)
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{
/* open configuration file */
char fname[MAXPATHLEN];
sprintf (fname, "%s/config.ini", DEFAULT_PATH);
FILE *fp = fopen(fname, "rb");
if (fp)
{
/* read version */
char version[16];
fread(version, 16, 1, fp);
fclose(fp);
if (strcmp(version,VERSION))
return;
/* read file */
fp = fopen(fname, "rb");
if (fp)
{
fread(&config, sizeof(config), 1, fp);
fclose(fp);
}
}
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}
void config_default(void)
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{
/* version TAG */
strncpy(config.version,VERSION,16);
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/* sound options */
config.psg_preamp = 150;
config.fm_preamp = 100;
config.hq_fm = 1;
config.psgBoostNoise = 0;
config.filter = 1;
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config.lp_range = 50;
config.low_freq = 880;
config.high_freq = 5000;
config.lg = 1.0;
config.mg = 1.0;
config.hg = 1.0;
config.rolloff = 0.995;
config.dac_bits = 14;
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/* system options */
config.region_detect = 0;
config.force_dtack = 0;
config.addr_error = 1;
config.tmss = 0;
config.lock_on = 0;
config.romtype = 0;
config.hot_swap = 0;
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/* video options */
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config.xshift = 0;
config.yshift = 0;
config.xscale = 0;
config.yscale = 0;
config.aspect = 1;
config.overscan = 3;
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config.ntsc = 0;
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if (VIDEO_HaveComponentCable())
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{
config.render = 2;
config.bilinear = 1;
#ifdef HW_RVL
config.trap = 1;
#endif
}
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else
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{
config.render = 0;
config.bilinear = 0;
#ifdef HW_RVL
config.trap = 0;
#endif
}
#ifdef HW_RVL
config.gamma = VI_GM_1_0 / 10.0;
#endif
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/* controllers options */
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config.gun_cursor[0] = 1;
config.gun_cursor[1] = 1;
config.invert_mouse = 0;
gx_input_SetDefault();
/* menu options */
config.autoload = 0;
#ifdef HW_RVL
config.s_auto = 1;
#else
config.s_auto = 0;
#endif
config.s_default = 1;
config.s_device = 0;
config.bg_type = 0;
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config.bg_overlay = 1;
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config.screen_w = 658;
config.bgm_volume = 100.0;
config.sfx_volume = 100.0;
/* default ROM directories */
#ifdef HW_RVL
sprintf (config.sddir, "sd:%s/roms/", DEFAULT_PATH);
sprintf (config.usbdir, "usb:%s/roms/", DEFAULT_PATH);
#else
sprintf (config.sddir, "%s/roms/", DEFAULT_PATH);
#endif
/* restore from config file */
config_load();
io_init();
/* default menu settings */
menu_configure();
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}