Example #1
0
static bool disk_set_image_index(unsigned int index)
{
   enum cd_img_type cd_type;
   int ret;

   if (index >= sizeof(disks) / sizeof(disks[0]))
      return false;

   if (disks[index].fname == NULL) {
      if (log_cb)
         log_cb(RETRO_LOG_ERROR, "missing disk #%u\n", index);

      // RetroArch specifies "no disk" with index == count,
      // so don't fail here..
      disk_current_index = index;
      return true;
   }

   if (log_cb)
      log_cb(RETRO_LOG_INFO, "switching to disk %u: \"%s\"\n", index,
            disks[index].fname);

   ret = -1;
   cd_type = PicoCdCheck(disks[index].fname, NULL);
   if (cd_type != CIT_NOT_CD)
      ret = cdd_load(disks[index].fname, cd_type);
   if (ret != 0) {
      if (log_cb)
         log_cb(RETRO_LOG_ERROR, "Load failed, invalid CD image?\n");
      return 0;
   }

   disk_current_index = index;
   return true;
}
Example #2
0
enum media_type_e PicoLoadMedia(const char *filename,
  const char *carthw_cfg_fname,
  const char *(*get_bios_filename)(int *region, const char *cd_fname),
  void (*do_region_override)(const char *media_filename))
{
  const char *rom_fname = filename;
  enum media_type_e media_type;
  enum cd_img_type cd_img_type = CIT_NOT_CD;
  unsigned char *rom_data = NULL;
  unsigned int rom_size = 0;
  pm_file *rom = NULL;
  int cd_region = 0;
  int ret;

  media_type = detect_media(filename);
  if (media_type == PM_BAD_DETECT)
    goto out;

  if ((PicoAHW & PAHW_MCD) && Pico_mcd != NULL)
    cdd_unload();
  PicoCartUnload();
  PicoAHW = 0;
  PicoQuirks = 0;

  if (media_type == PM_CD)
  {
    // check for MegaCD image
    cd_img_type = PicoCdCheck(filename, &cd_region);
    if ((int)cd_img_type >= 0 && cd_img_type != CIT_NOT_CD)
    {
      // valid CD image, ask frontend for BIOS..
      rom_fname = NULL;
      if (get_bios_filename != NULL)
        rom_fname = get_bios_filename(&cd_region, filename);
      if (rom_fname == NULL) {
        media_type = PM_BAD_CD_NO_BIOS;
        goto out;
      }

      PicoAHW |= PAHW_MCD;
    }
    else {
      media_type = PM_BAD_CD;
      goto out;
    }
  }
  else if (media_type == PM_MARK3) {
    lprintf("detected SMS ROM\n");
    PicoAHW = PAHW_SMS;
  }

  rom = pm_open(rom_fname);
  if (rom == NULL) {
    lprintf("Failed to open ROM\n");
    media_type = PM_ERROR;
    goto out;
  }

  ret = PicoCartLoad(rom, &rom_data, &rom_size, (PicoAHW & PAHW_SMS) ? 1 : 0);
  pm_close(rom);
  if (ret != 0) {
    if      (ret == 2) lprintf("Out of memory\n");
    else if (ret == 3) lprintf("Read failed\n");
    else               lprintf("PicoCartLoad() failed.\n");
    media_type = PM_ERROR;
    goto out;
  }

  // detect wrong files
  if (strncmp((char *)rom_data, "Pico", 4) == 0) {
    lprintf("savestate selected?\n");
    media_type = PM_BAD_DETECT;
    goto out;
  }

  if (!(PicoAHW & PAHW_SMS)) {
    unsigned short *d = (unsigned short *)(rom_data + 4);
    if ((((d[0] << 16) | d[1]) & 0xffffff) >= (int)rom_size) {
      lprintf("bad reset vector\n");
      media_type = PM_BAD_DETECT;
      goto out;
    }
  }

  // load config for this ROM (do this before insert to get correct region)
  if (!(PicoAHW & PAHW_MCD)) {
    memcpy(media_id_header, rom_data + 0x100, sizeof(media_id_header));
    if (do_region_override != NULL)
      do_region_override(filename);
  }

  if (PicoCartInsert(rom_data, rom_size, carthw_cfg_fname)) {
    media_type = PM_ERROR;
    goto out;
  }
  rom_data = NULL; // now belongs to PicoCart
  Pico.m.ncart_in = 0;

  // insert CD if it was detected
  if (cd_img_type != CIT_NOT_CD) {
    ret = cdd_load(filename, cd_img_type);
    if (ret != 0) {
      PicoCartUnload();
      media_type = PM_BAD_CD;
      goto out;
    }
    Pico.m.ncart_in = 1;
  }

  if (PicoQuirks & PQUIRK_FORCE_6BTN)
    PicoSetInputDevice(0, PICO_INPUT_PAD_6BTN);

out:
  if (rom_data)
    free(rom_data);
  return media_type;
}
Example #3
0
/****************************************************************************
 * LoadFile
 *
 * This function will load a game file into the ROM buffer.
 * This functions return the actual size of data copied into the buffer
 *
 ****************************************************************************/ 
int LoadFile(int selection) 
{
  int size, cd_mode1, filetype;
  char filename[MAXPATHLEN];

  /* file path */
  char *filepath = (deviceType == TYPE_RECENT) ? history.entries[selection].filepath : fileDir;

  /* full filename */
  sprintf(filename, "%s%s", filepath, filelist[selection].filename);

  /* DVD hot swap  */
  if (!strncmp(filepath, rootdir[TYPE_DVD], strlen(rootdir[TYPE_DVD])))
  {
    /* Check if file is still accessible */
    struct stat filestat;
    if(stat(filename, &filestat) != 0)
    {
      /* If not, try to mount DVD */
      if (!MountDVD()) return 0;
    }
  }

  /* open message box */
  GUI_MsgBoxOpen("Information", "Loading game...", 1);

  /* no cartridge or CD game loaded */
  size = cd_mode1 = 0;

  /* check if virtual CD tray was open */
  if ((system_hw == SYSTEM_MCD) && (cdd.status == CD_OPEN))
  {
    /* swap CD image file in (without changing region, system,...) */
    size = cdd_load(filename, (char *)(cdc.ram));

    /* check if a cartridge is currently loaded  */
    if (scd.cartridge.boot)
    {
      /* CD Mode 1 */
      cd_mode1 = size;
    }
    else
    {
      /* update game informations from CD image file header */
      getrominfo((char *)(cdc.ram));
    }
  }

  /* no CD image file loaded */
  if (!size)
  {
    /* close CD tray to force system reset */
    cdd.status = NO_DISC;

    /* load game file */
    size = load_rom(filename);
  }

  if (size > 0)
  {
    /* do not update game basename if a CD was loaded with a cartridge (Mode 1) */
    if (cd_mode1)
    {
      /* add CD image file to history list */
      filetype = 1;
    }
    else
    {
      /* auto-save previous game state */
      slot_autosave(config.s_default,config.s_device);

      /* update game basename (for screenshot, save & cheat files) */
      if (romtype & SYSTEM_SMS)
      {
        /* Master System ROM file */
        filetype = 2;
        sprintf(rom_filename,"ms/%s",filelist[selection].filename);
      }
      else if (romtype & SYSTEM_GG)
      {
        /* Game Gear ROM file */
        filetype = 3;
        sprintf(rom_filename,"gg/%s",filelist[selection].filename);
      }
      else if (romtype == SYSTEM_SG)
      {
        /* SG-1000 ROM file */
        filetype = 4;
        sprintf(rom_filename,"sg/%s",filelist[selection].filename);
      }
      else if (romtype == SYSTEM_MCD)
      {
        /* CD image file */
        filetype = 1;
        sprintf(rom_filename,"cd/%s",filelist[selection].filename);
      }
      else
      {
        /* by default, Genesis ROM file */
        filetype = 0;
        sprintf(rom_filename,"md/%s",filelist[selection].filename);
      }

      /* remove file extension */
      int i = strlen(rom_filename) - 1;
      while ((i > 0) && (rom_filename[i] != '.')) i--;
      if (i > 0) rom_filename[i] = 0;
    }

    /* add/move the file to the top of the history. */
    history_add_file(filepath, filelist[selection].filename, filetype);

    /* recent file list may have changed */
    if (deviceType == TYPE_RECENT) deviceType = -1;

    /* close message box */
    GUI_MsgBoxClose();

    /* valid image has been loaded */
    return 1;
  }

  GUI_WaitPrompt("Error", "Unable to load game");
  return 0;
}