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

#include "shared.h"
#include "font.h"

#include <fat.h>
#include <sys/dir.h>

#ifdef HW_RVL
#define CONFIG_VERSION "GENPLUS 1.2.2W"
#else
#define CONFIG_VERSION "GENPLUS 1.2.2G"
#endif

void config_save()
{
  char pathname[MAXPATHLEN];

  if (!fat_enabled) return;

  /* first check if directory exist */
  sprintf (pathname, DEFAULT_PATH);
  DIR_ITER *dir = diropen(pathname);
  if (dir == NULL) mkdir(pathname,S_IRWXU);
  else dirclose(dir);

  /* open configuration file */
  sprintf (pathname, "%s/config.ini", pathname);
  FILE *fp = fopen(pathname, "wb");
  if (fp == NULL) return;

  /* save options */
  fwrite(&config, sizeof(config), 1, fp);

  fclose(fp);
}

void config_load()
{
  char pathname[MAXPATHLEN];

  /* open configuration file */
  sprintf (pathname, "%s/genplus.ini", DEFAULT_PATH);
  FILE *fp = fopen(pathname, "rb");
  if (fp == NULL) return;

  /* read version */
  char version[15];
  fread(version, 15, 1, fp); 
  fclose(fp);
  if (strcmp(version,CONFIG_VERSION)) return;

  /* read file */
  fp = fopen(pathname, "rb");
  fread(&config, sizeof(config), 1, fp);
  fclose(fp);
}

void set_config_defaults(void)
{
  /* version TAG */
  strncpy(config.version,CONFIG_VERSION,15);
  
  /* sound options */
  config.psg_preamp   = 1.5;
  config.fm_preamp    = 1.0;
  config.boost        = 1;
  config.hq_fm        = 1;
  config.filter       = 1;
  config.fm_core      = 0;

  /* system options */
  config.freeze_auto    = -1;
#ifdef HW_RVL
  config.sram_auto      = 0; /* assume we always got SDCARD */
#else
  config.sram_auto      = -1;
#endif
  config.region_detect  = 0;
  config.force_dtack    = 0;
  config.bios_enabled   = 0;

  /* display options */
  config.xshift   = 0;
  config.yshift   = 0;
  config.xscale   = 0;
  config.yscale   = 0;
  config.aspect   = 1;
  config.overscan = 1;
  config.render   = VIDEO_HaveComponentCable() ? 2 : 0;
  config.ntsc     = 0;
  config.bilinear = 1;

  /* controllers options */
  ogc_input__set_defaults();
  config.gun_cursor   = 1;
  config.invert_mouse = 0;
}