mirror of
https://github.com/dborth/snes9xgx.git
synced 2024-11-24 11:39:21 +01:00
509 lines
12 KiB
C++
509 lines
12 KiB
C++
/****************************************************************************
|
|
* Snes9x 1.51 Nintendo Wii/Gamecube Port
|
|
*
|
|
* softdev July 2006
|
|
* crunchy2 May 2007
|
|
* Michniewski 2008
|
|
* Tantric August 2008
|
|
*
|
|
* fileop.cpp
|
|
*
|
|
* FAT File operations
|
|
***************************************************************************/
|
|
|
|
#include <gccore.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <ogcsys.h>
|
|
#include <sys/dir.h>
|
|
#include <sys/stat.h>
|
|
#include <zlib.h>
|
|
#include <sdcard/wiisd_io.h>
|
|
#include <sdcard/gcsd.h>
|
|
#include <ogc/usbstorage.h>
|
|
|
|
#include "snes9xGX.h"
|
|
#include "fileop.h"
|
|
#include "smbop.h"
|
|
#include "dvd.h"
|
|
#include "memcardop.h"
|
|
#include "unzip.h"
|
|
#include "video.h"
|
|
#include "menudraw.h"
|
|
#include "filesel.h"
|
|
#include "preferences.h"
|
|
|
|
// file pointer - the only one we should ever use!
|
|
FILE * file;
|
|
bool unmountRequired[9] = { false, false, false, false, false, false, false, false, false };
|
|
bool isMounted[9] = { false, false, false, false, false, false, false, false, false };
|
|
|
|
#ifdef HW_RVL
|
|
const DISC_INTERFACE* sd = &__io_wiisd;
|
|
const DISC_INTERFACE* usb = &__io_usbstorage;
|
|
#else
|
|
const DISC_INTERFACE* carda = &__io_gcsda;
|
|
const DISC_INTERFACE* cardb = &__io_gcsdb;
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* deviceThreading
|
|
***************************************************************************/
|
|
lwp_t devicethread;
|
|
|
|
/****************************************************************************
|
|
* devicecallback
|
|
*
|
|
* This checks our devices for changes (SD/USB removed) and
|
|
* initializes the network in the background
|
|
***************************************************************************/
|
|
static void *
|
|
devicecallback (void *arg)
|
|
{
|
|
while (1)
|
|
{
|
|
#ifdef HW_RVL
|
|
if(isMounted[METHOD_SD])
|
|
{
|
|
if(!sd->isInserted()) // check if the device was removed
|
|
{
|
|
unmountRequired[METHOD_SD] = true;
|
|
isMounted[METHOD_SD] = false;
|
|
}
|
|
}
|
|
|
|
if(isMounted[METHOD_USB])
|
|
{
|
|
if(!usb->isInserted()) // check if the device was removed - doesn't work on USB!
|
|
{
|
|
unmountRequired[METHOD_USB] = true;
|
|
isMounted[METHOD_USB] = false;
|
|
}
|
|
}
|
|
|
|
InitializeNetwork(SILENT);
|
|
#else
|
|
if(isMounted[METHOD_SD_SLOTA])
|
|
{
|
|
if(!carda->isInserted()) // check if the device was removed
|
|
{
|
|
unmountRequired[METHOD_SD_SLOTA] = true;
|
|
isMounted[METHOD_SD_SLOTA] = false;
|
|
}
|
|
}
|
|
if(isMounted[METHOD_SD_SLOTB])
|
|
{
|
|
if(!cardb->isInserted()) // check if the device was removed
|
|
{
|
|
unmountRequired[METHOD_SD_SLOTB] = true;
|
|
isMounted[METHOD_SD_SLOTB] = false;
|
|
}
|
|
}
|
|
#endif
|
|
usleep(500000); // suspend thread for 1/2 sec
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* InitDeviceThread
|
|
*
|
|
* libOGC provides a nice wrapper for LWP access.
|
|
* This function sets up a new local queue and attaches the thread to it.
|
|
***************************************************************************/
|
|
void
|
|
InitDeviceThread()
|
|
{
|
|
LWP_CreateThread (&devicethread, devicecallback, NULL, NULL, 0, 80);
|
|
}
|
|
|
|
/****************************************************************************
|
|
* UnmountAllFAT
|
|
* Unmounts all FAT devices
|
|
***************************************************************************/
|
|
void UnmountAllFAT()
|
|
{
|
|
#ifdef HW_RVL
|
|
fatUnmount("sd");
|
|
fatUnmount("usb");
|
|
#else
|
|
fatUnmount("carda");
|
|
fatUnmount("cardb");
|
|
#endif
|
|
}
|
|
|
|
/****************************************************************************
|
|
* MountFAT
|
|
* Checks if the device needs to be (re)mounted
|
|
* If so, unmounts the device
|
|
* Attempts to mount the device specified
|
|
* Sets libfat to use the device by default
|
|
***************************************************************************/
|
|
|
|
bool MountFAT(int method)
|
|
{
|
|
bool mounted = true; // assume our disc is already mounted
|
|
char name[10];
|
|
const DISC_INTERFACE* disc = NULL;
|
|
|
|
switch(method)
|
|
{
|
|
#ifdef HW_RVL
|
|
case METHOD_SD:
|
|
sprintf(name, "sd");
|
|
disc = sd;
|
|
break;
|
|
case METHOD_USB:
|
|
sprintf(name, "usb");
|
|
disc = usb;
|
|
break;
|
|
#else
|
|
case METHOD_SD_SLOTA:
|
|
sprintf(name, "carda");
|
|
disc = carda;
|
|
break;
|
|
|
|
case METHOD_SD_SLOTB:
|
|
sprintf(name, "cardb");
|
|
disc = cardb;
|
|
break;
|
|
#endif
|
|
default:
|
|
return false; // unknown device
|
|
}
|
|
|
|
sprintf(rootdir, "%s:/", name);
|
|
|
|
if(unmountRequired[method])
|
|
{
|
|
unmountRequired[method] = false;
|
|
fatUnmount(name);
|
|
disc->shutdown();
|
|
}
|
|
if(!isMounted[method])
|
|
{
|
|
if(!disc->startup())
|
|
mounted = false;
|
|
else if(!fatMountSimple(name, disc))
|
|
mounted = false;
|
|
else
|
|
fatEnableReadAhead(name, 6, 64);
|
|
}
|
|
|
|
isMounted[method] = mounted;
|
|
return mounted;
|
|
}
|
|
|
|
void MountAllFAT()
|
|
{
|
|
#ifdef HW_RVL
|
|
MountFAT(METHOD_SD);
|
|
MountFAT(METHOD_USB);
|
|
#else
|
|
MountFAT(METHOD_SD_SLOTA);
|
|
MountFAT(METHOD_SD_SLOTB);
|
|
#endif
|
|
}
|
|
|
|
/****************************************************************************
|
|
* ChangeInterface
|
|
* Attempts to mount/configure the device specified
|
|
***************************************************************************/
|
|
bool ChangeInterface(int method, bool silent)
|
|
{
|
|
bool mounted = false;
|
|
|
|
if(method == METHOD_SD)
|
|
{
|
|
#ifdef HW_RVL
|
|
mounted = MountFAT(METHOD_SD); // try Wii internal SD
|
|
#else
|
|
mounted = MountFAT(METHOD_SD_SLOTA); // try SD Gecko on slot A
|
|
if(!mounted) // internal SD and SD Gecko (on slot A) not found
|
|
mounted = MountFAT(METHOD_SD_SLOTB); // try SD Gecko on slot B
|
|
#endif
|
|
if(!mounted && !silent) // no SD device found
|
|
WaitPrompt ("SD card not found!");
|
|
}
|
|
else if(method == METHOD_USB)
|
|
{
|
|
#ifdef HW_RVL
|
|
mounted = MountFAT(method);
|
|
|
|
if(!mounted && !silent)
|
|
WaitPrompt ("USB drive not found!");
|
|
#endif
|
|
}
|
|
else if(method == METHOD_SMB)
|
|
{
|
|
sprintf(rootdir, "smb:/");
|
|
mounted = ConnectShare(NOTSILENT);
|
|
}
|
|
else if(method == METHOD_DVD)
|
|
{
|
|
sprintf(rootdir, "/");
|
|
mounted = MountDVD(NOTSILENT);
|
|
}
|
|
|
|
return mounted;
|
|
}
|
|
|
|
/***************************************************************************
|
|
* Browse subdirectories
|
|
**************************************************************************/
|
|
int
|
|
ParseDirectory()
|
|
{
|
|
int nbfiles = 0;
|
|
DIR_ITER *dir;
|
|
char fulldir[MAXPATHLEN];
|
|
char filename[MAXPATHLEN];
|
|
char tmpname[MAXPATHLEN];
|
|
struct stat filestat;
|
|
char msg[128];
|
|
|
|
// initialize selection
|
|
selection = offset = 0;
|
|
|
|
// Clear any existing values
|
|
memset (&filelist, 0, sizeof (FILEENTRIES) * MAXFILES);
|
|
|
|
// add device to path
|
|
sprintf(fulldir, "%s%s", rootdir, currentdir);
|
|
|
|
// open the directory
|
|
dir = diropen(fulldir);
|
|
|
|
if (dir == NULL)
|
|
{
|
|
sprintf(msg, "Error opening %s", fulldir);
|
|
WaitPrompt(msg);
|
|
|
|
// if we can't open the dir, open root dir
|
|
sprintf(fulldir,"%s",rootdir);
|
|
|
|
dir = diropen(currentdir);
|
|
|
|
if (dir == NULL)
|
|
{
|
|
sprintf(msg, "Error opening %s", fulldir);
|
|
WaitPrompt(msg);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
// index files/folders
|
|
while(dirnext(dir,filename,&filestat) == 0)
|
|
{
|
|
if(strcmp(filename,".") != 0)
|
|
{
|
|
memset(&filelist[nbfiles], 0, sizeof(FILEENTRIES));
|
|
strncpy(filelist[nbfiles].filename, filename, MAXPATHLEN);
|
|
StripExt(tmpname, filename); // hide file extension
|
|
strncpy(filelist[nbfiles].displayname, tmpname, MAXDISPLAY+1); // crop name for display
|
|
filelist[nbfiles].length = filestat.st_size;
|
|
filelist[nbfiles].flags = (filestat.st_mode & _IFDIR) == 0 ? 0 : 1; // flag this as a dir
|
|
nbfiles++;
|
|
}
|
|
}
|
|
|
|
// close directory
|
|
dirclose(dir);
|
|
|
|
// Sort the file list
|
|
qsort(filelist, nbfiles, sizeof(FILEENTRIES), FileSortCallback);
|
|
|
|
return nbfiles;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* LoadSzFile
|
|
* Loads the selected file # from the specified 7z into rbuffer
|
|
* Returns file size
|
|
***************************************************************************/
|
|
u32
|
|
LoadSzFile(char * filepath, unsigned char * rbuffer)
|
|
{
|
|
u32 size = 0;
|
|
|
|
// stop checking if devices were removed/inserted
|
|
// since we're loading a file
|
|
LWP_SuspendThread (devicethread);
|
|
|
|
file = fopen (filepath, "rb");
|
|
if (file > 0)
|
|
{
|
|
size = SzExtractFile(filelist[selection].offset, rbuffer);
|
|
fclose (file);
|
|
}
|
|
else
|
|
{
|
|
WaitPrompt("Error opening file");
|
|
}
|
|
|
|
// go back to checking if devices were inserted/removed
|
|
LWP_ResumeThread (devicethread);
|
|
|
|
return size;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* LoadFile
|
|
***************************************************************************/
|
|
u32
|
|
LoadFile (char * rbuffer, char *filepath, u32 length, int method, bool silent)
|
|
{
|
|
char zipbuffer[2048];
|
|
u32 size = 0;
|
|
u32 readsize = 0;
|
|
|
|
if(!ChangeInterface(method, NOTSILENT))
|
|
return 0;
|
|
|
|
switch(method)
|
|
{
|
|
case METHOD_DVD:
|
|
return LoadDVDFile (rbuffer, filepath, length, silent);
|
|
break;
|
|
case METHOD_MC_SLOTA:
|
|
return LoadMCFile (rbuffer, CARD_SLOTA, filepath, silent);
|
|
break;
|
|
case METHOD_MC_SLOTB:
|
|
return LoadMCFile (rbuffer, CARD_SLOTB, filepath, silent);
|
|
break;
|
|
}
|
|
|
|
// stop checking if devices were removed/inserted
|
|
// since we're loading a file
|
|
LWP_SuspendThread (devicethread);
|
|
|
|
// add device to filepath
|
|
char fullpath[1024];
|
|
sprintf(fullpath, "%s%s", rootdir, filepath);
|
|
|
|
file = fopen (fullpath, "rb");
|
|
|
|
if (file > 0)
|
|
{
|
|
if(length > 0 && length <= 2048) // do a partial read (eg: to check file header)
|
|
{
|
|
size = fread (rbuffer, 1, length, file);
|
|
}
|
|
else // load whole file
|
|
{
|
|
readsize = fread (zipbuffer, 1, 2048, file);
|
|
|
|
if(readsize > 0)
|
|
{
|
|
if (IsZipFile (zipbuffer))
|
|
{
|
|
size = UnZipBuffer ((unsigned char *)rbuffer, method); // unzip
|
|
}
|
|
else
|
|
{
|
|
struct stat fileinfo;
|
|
fstat(file->_file, &fileinfo);
|
|
size = fileinfo.st_size;
|
|
|
|
memcpy (rbuffer, zipbuffer, 2048); // copy what we already read
|
|
|
|
ShowProgress ("Loading...", 2048, length);
|
|
|
|
u32 offset = 2048;
|
|
while(offset < size)
|
|
{
|
|
readsize = fread (rbuffer + offset, 1, (1024*512), file); // read in 512K chunks
|
|
|
|
if(readsize <= 0 || readsize > (1024*512))
|
|
break; // read failure
|
|
|
|
if(readsize > 0)
|
|
offset += readsize;
|
|
ShowProgress ("Loading...", offset, length);
|
|
}
|
|
|
|
if(offset != size) // # bytes read doesn't match # expected
|
|
size = 0;
|
|
}
|
|
}
|
|
}
|
|
fclose (file);
|
|
}
|
|
if(!size && !silent)
|
|
{
|
|
unmountRequired[method] = true;
|
|
WaitPrompt("Error loading file!");
|
|
}
|
|
|
|
// go back to checking if devices were inserted/removed
|
|
LWP_ResumeThread (devicethread);
|
|
|
|
return size;
|
|
}
|
|
|
|
u32 LoadFile(char filepath[], int method, bool silent)
|
|
{
|
|
return LoadFile((char *)savebuffer, filepath, 0, method, silent);
|
|
}
|
|
|
|
/****************************************************************************
|
|
* SaveFile
|
|
* Write buffer to file
|
|
***************************************************************************/
|
|
u32
|
|
SaveFile (char * buffer, char *filepath, u32 datasize, int method, bool silent)
|
|
{
|
|
u32 written = 0;
|
|
|
|
if(!ChangeInterface(method, NOTSILENT))
|
|
return 0;
|
|
|
|
switch(method)
|
|
{
|
|
case METHOD_MC_SLOTA:
|
|
return SaveMCFile (buffer, CARD_SLOTA, filepath, datasize, silent);
|
|
break;
|
|
case METHOD_MC_SLOTB:
|
|
return SaveMCFile (buffer, CARD_SLOTB, filepath, datasize, silent);
|
|
break;
|
|
}
|
|
|
|
if (datasize)
|
|
{
|
|
// stop checking if devices were removed/inserted
|
|
// since we're saving a file
|
|
LWP_SuspendThread (devicethread);
|
|
|
|
// add device to filepath
|
|
char fullpath[1024];
|
|
sprintf(fullpath, "%s%s", rootdir, filepath);
|
|
|
|
// open file for writing
|
|
file = fopen (filepath, "wb");
|
|
|
|
if (file > 0)
|
|
{
|
|
written = fwrite (savebuffer, 1, datasize, file);
|
|
fclose (file);
|
|
}
|
|
|
|
if(!written && !silent)
|
|
{
|
|
unmountRequired[method] = true;
|
|
WaitPrompt ("Error saving file!");
|
|
}
|
|
|
|
// go back to checking if devices were inserted/removed
|
|
LWP_ResumeThread (devicethread);
|
|
}
|
|
return written;
|
|
}
|
|
|
|
u32 SaveFile(char filepath[], u32 datasize, int method, bool silent)
|
|
{
|
|
return SaveFile((char *)savebuffer, filepath, datasize, method, silent);
|
|
}
|
|
|