/****************************************************************************
* ChangeInterface
* Attempts to mount/configure the device specified
***************************************************************************/
bool ChangeInterface(int device, bool silent)
{
if(isMounted[device])
return true;
bool mounted = false;
switch(device)
{
#ifdef HW_RVL
case DEVICE_SD:
case DEVICE_USB:
#else
case DEVICE_SD_SLOTA:
case DEVICE_SD_SLOTB:
#endif
mounted = MountFAT(device, silent);
break;
case DEVICE_DVD:
mounted = MountDVD(silent);
break;
case DEVICE_SMB:
mounted = ConnectShare(silent);
break;
}
return mounted;
}
/****************************************************************************
* OpenDir
*
* Function to open a directory and load ROM file list.
****************************************************************************/
int OpenDirectory(int device, int type)
{
int max = 0;
if (device == TYPE_RECENT)
{
/* fetch history list */
int i;
for(i=0; i < NUM_HISTORY_ENTRIES; i++)
{
if(history.entries[i].filepath[0] > 0)
{
filelist[i].flags = 0;
strncpy(filelist[i].filename,history.entries[i].filename, MAXJOLIET-1);
filelist[i].filename[MAXJOLIET-1] = '\0';
max++;
}
else
{
/* Found the end of the list. */
break;
}
}
}
else
{
/* only DVD hot swap is supported */
if (device == TYPE_DVD)
{
/* try to access root directory */
DIR *dir = opendir(rootdir[TYPE_DVD]);
if (dir == NULL)
{
/* mount DVD */
if (!MountDVD()) return 0;
deviceType = -1;
}
else
{
closedir(dir);
}
}
/* parse last directory */
fileDir = config.lastdir[type][device];
max = ParseDirectory();
if (max <= 0)
{
/* parse root directory */
strcpy(fileDir, rootdir[device]);
max = ParseDirectory();
if (max < 0)
{
GUI_WaitPrompt("Error","Unable to open directory !");
return 0;
}
deviceType = -1;
}
}
if (max == 0)
{
GUI_WaitPrompt("Error","No files found !");
return 0;
}
/* check if device or file type has changed */
if ((device != deviceType) || (type != fileType))
{
/* reset current types */
deviceType = device;
fileType = type;
/* reset File selector */
ClearSelector(max);
}
return 1;
}
/****************************************************************************
* 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;
}
