mirror of
https://github.com/dborth/snes9xgx.git
synced 2024-12-27 11:41:49 +01:00
417 lines
10 KiB
C++
417 lines
10 KiB
C++
/****************************************************************************
|
|
* Snes9x 1.51 Nintendo Wii/Gamecube Port
|
|
*
|
|
* softdev July 2006
|
|
* crunchy2 May-June 2007
|
|
* Tantric September 2008
|
|
*
|
|
* memcardop.cpp
|
|
*
|
|
* Memory Card routines
|
|
***************************************************************************/
|
|
|
|
#include <gccore.h>
|
|
#include <ogcsys.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
|
|
#include "snes9xGX.h"
|
|
#include "video.h"
|
|
#include "menudraw.h"
|
|
#include "menu.h"
|
|
#include "preferences.h"
|
|
#include "fileop.h"
|
|
|
|
/****************************************************************************
|
|
* CardFileExists
|
|
*
|
|
* Wrapper to search through the files on the card.
|
|
* Returns TRUE if found.
|
|
***************************************************************************/
|
|
static int
|
|
CardFileExists (char *filename, int slot)
|
|
{
|
|
card_dir CardDir;
|
|
int CardError;
|
|
|
|
CardError = CARD_FindFirst (slot, &CardDir, TRUE);
|
|
while (CardError != CARD_ERROR_NOFILE)
|
|
{
|
|
CardError = CARD_FindNext (&CardDir);
|
|
|
|
if (strcmp ((char *) CardDir.filename, filename) == 0)
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* MountCard
|
|
*
|
|
* Mounts the memory card in the given slot.
|
|
* Returns the result of the last attempted CARD_Mount command.
|
|
***************************************************************************/
|
|
static int MountCard(int cslot, bool silent, u8 * SysArea)
|
|
{
|
|
int ret = -1;
|
|
int tries = 0;
|
|
|
|
// Mount the card
|
|
while ( tries < 10 && ret != 0)
|
|
{
|
|
EXI_ProbeReset ();
|
|
ret = CARD_Mount (cslot, &SysArea, NULL);
|
|
VIDEO_WaitVSync ();
|
|
tries++;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* TestCard
|
|
*
|
|
* Checks to see if a card is in the card slot specified
|
|
***************************************************************************/
|
|
bool TestCard(int slot, bool silent)
|
|
{
|
|
// Memory Cards do not work in Wii mode - disable
|
|
#ifdef HW_RVL
|
|
return false;
|
|
#endif
|
|
|
|
/*** Initialize Card System ***/
|
|
u8 SysArea[CARD_WORKAREA] ATTRIBUTE_ALIGN (32);
|
|
memset (SysArea, 0, CARD_WORKAREA);
|
|
CARD_Init ("SNES", "00");
|
|
|
|
/*** Try to mount the card ***/
|
|
if (MountCard(slot, silent, (u8 *)SysArea) == 0)
|
|
{
|
|
// Mount successful!
|
|
if(!silent)
|
|
{
|
|
if (slot == CARD_SLOTA)
|
|
WaitPrompt("Mounted Slot A Memory Card!");
|
|
else
|
|
WaitPrompt("Mounted Slot B Memory Card!");
|
|
}
|
|
CARD_Unmount (slot);
|
|
return true;
|
|
}
|
|
else
|
|
{
|
|
if(!silent)
|
|
{
|
|
if (slot == CARD_SLOTA)
|
|
WaitPrompt("Unable to Mount Slot A Memory Card!");
|
|
else
|
|
WaitPrompt("Unable to Mount Slot B Memory Card!");
|
|
}
|
|
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Verify Memory Card file against buffer
|
|
***************************************************************************/
|
|
static int
|
|
VerifyMCFile (char *buf, int slot, char *filename, int datasize)
|
|
{
|
|
card_file CardFile;
|
|
unsigned char verifbuffer[65536] ATTRIBUTE_ALIGN (32);
|
|
int CardError;
|
|
unsigned int blocks;
|
|
unsigned int SectorSize;
|
|
char msg[80];
|
|
int bytesleft = 0;
|
|
int bytesread = 0;
|
|
|
|
/*** Initialize Card System ***/
|
|
u8 SysArea[CARD_WORKAREA] ATTRIBUTE_ALIGN (32);
|
|
memset (SysArea, 0, CARD_WORKAREA);
|
|
CARD_Init ("SNES", "00");
|
|
|
|
/*** Try to mount the card ***/
|
|
CardError = MountCard(slot, NOTSILENT, (u8 *)SysArea);
|
|
|
|
if (CardError == 0)
|
|
{
|
|
/*** Get Sector Size ***/
|
|
CARD_GetSectorSize (slot, &SectorSize);
|
|
|
|
if (!CardFileExists (filename, slot))
|
|
{
|
|
CARD_Unmount (slot);
|
|
WaitPrompt("Unable to open file for verify!");
|
|
return 0;
|
|
}
|
|
|
|
memset (&CardFile, 0, sizeof (CardFile));
|
|
CardError = CARD_Open (slot, filename, &CardFile);
|
|
|
|
blocks = CardFile.len;
|
|
|
|
if (blocks < SectorSize)
|
|
blocks = SectorSize;
|
|
|
|
if (blocks % SectorSize)
|
|
blocks += SectorSize;
|
|
|
|
if (blocks > (unsigned int)datasize)
|
|
blocks = datasize;
|
|
|
|
memset (verifbuffer, 0, 65536);
|
|
bytesleft = blocks;
|
|
bytesread = 0;
|
|
while (bytesleft > 0)
|
|
{
|
|
CARD_Read (&CardFile, verifbuffer, SectorSize, bytesread);
|
|
if ( memcmp (buf + bytesread, verifbuffer, (unsigned int)bytesleft < SectorSize ? bytesleft : SectorSize) )
|
|
{
|
|
CARD_Close (&CardFile);
|
|
CARD_Unmount (slot);
|
|
WaitPrompt("File did not verify!");
|
|
return 0;
|
|
}
|
|
|
|
bytesleft -= SectorSize;
|
|
bytesread += SectorSize;
|
|
|
|
sprintf (msg, "Verified %d of %d bytes", bytesread, blocks);
|
|
ShowProgress (msg, bytesread, blocks);
|
|
}
|
|
CARD_Close (&CardFile);
|
|
CARD_Unmount (slot);
|
|
|
|
return 1;
|
|
}
|
|
else
|
|
if (slot == CARD_SLOTA)
|
|
WaitPrompt("Unable to Mount Slot A Memory Card!");
|
|
else
|
|
WaitPrompt("Unable to Mount Slot B Memory Card!");
|
|
|
|
return 0;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* LoadMCFile
|
|
* Load savebuffer from Memory Card file
|
|
***************************************************************************/
|
|
int
|
|
LoadMCFile (char *buf, int slot, char *filename, bool silent)
|
|
{
|
|
card_file CardFile;
|
|
int CardError;
|
|
unsigned int blocks;
|
|
unsigned int SectorSize;
|
|
int bytesleft = 0;
|
|
int bytesread = 0;
|
|
|
|
/*** Initialize Card System ***/
|
|
u8 SysArea[CARD_WORKAREA] ATTRIBUTE_ALIGN (32);
|
|
memset (SysArea, 0, CARD_WORKAREA);
|
|
CARD_Init ("SNES", "00");
|
|
|
|
/*** Try to mount the card ***/
|
|
CardError = MountCard(slot, NOTSILENT, (u8 *)SysArea);
|
|
|
|
if (CardError == 0)
|
|
{
|
|
/*** Get Sector Size ***/
|
|
CARD_GetSectorSize (slot, &SectorSize);
|
|
|
|
if (!CardFileExists (filename, slot))
|
|
{
|
|
if (!silent)
|
|
WaitPrompt("Unable to open file");
|
|
return 0;
|
|
}
|
|
|
|
memset (&CardFile, 0, sizeof (CardFile));
|
|
CardError = CARD_Open (slot, filename, &CardFile);
|
|
|
|
blocks = CardFile.len;
|
|
|
|
if (blocks < SectorSize)
|
|
blocks = SectorSize;
|
|
|
|
if (blocks % SectorSize)
|
|
blocks += SectorSize;
|
|
|
|
memset (buf, 0, 0x22000);
|
|
|
|
bytesleft = blocks;
|
|
bytesread = 0;
|
|
while (bytesleft > 0)
|
|
{
|
|
CARD_Read (&CardFile, buf + bytesread, SectorSize, bytesread);
|
|
bytesleft -= SectorSize;
|
|
bytesread += SectorSize;
|
|
}
|
|
CARD_Close (&CardFile);
|
|
CARD_Unmount (slot);
|
|
}
|
|
else
|
|
if (slot == CARD_SLOTA)
|
|
WaitPrompt("Unable to Mount Slot A Memory Card!");
|
|
else
|
|
WaitPrompt("Unable to Mount Slot B Memory Card!");
|
|
|
|
return bytesread;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* SaveMCFile
|
|
* Write savebuffer to Memory Card file
|
|
***************************************************************************/
|
|
int
|
|
SaveMCFile (char *buf, int slot, char *filename, int datasize, bool silent)
|
|
{
|
|
card_file CardFile;
|
|
card_stat CardStatus;
|
|
int CardError;
|
|
unsigned int blocks;
|
|
unsigned int SectorSize;
|
|
char msg[80];
|
|
|
|
if(datasize <= 0)
|
|
return 0;
|
|
|
|
/*** Initialize Card System ***/
|
|
u8 SysArea[CARD_WORKAREA] ATTRIBUTE_ALIGN (32);
|
|
memset (SysArea, 0, CARD_WORKAREA);
|
|
CARD_Init ("SNES", "00");
|
|
|
|
/*** Try to mount the card ***/
|
|
CardError = MountCard(slot, NOTSILENT, (u8 *)SysArea);
|
|
|
|
if (CardError == 0)
|
|
{
|
|
/*** Get Sector Size ***/
|
|
CARD_GetSectorSize (slot, &SectorSize);
|
|
|
|
/*** Calculate number of blocks required ***/
|
|
blocks = (datasize / SectorSize) * SectorSize;
|
|
if (datasize % SectorSize)
|
|
blocks += SectorSize;
|
|
|
|
/*** Does this file exist ? ***/
|
|
if (CardFileExists (filename, slot))
|
|
{
|
|
/*** Try to open the file ***/
|
|
CardError = CARD_Open (slot, filename, &CardFile);
|
|
if (CardError)
|
|
{
|
|
CARD_Unmount (slot);
|
|
WaitPrompt("Unable to open card file!");
|
|
return 0;
|
|
}
|
|
|
|
if ( (s32)blocks > CardFile.len ) /*** new data is longer ***/
|
|
{
|
|
CARD_Close (&CardFile);
|
|
|
|
/*** Try to create temp file to check available space ***/
|
|
CardError = CARD_Create (slot, "TEMPFILESNES9XGX201", blocks, &CardFile);
|
|
if (CardError)
|
|
{
|
|
CARD_Unmount (slot);
|
|
WaitPrompt("Not enough space to update file!");
|
|
return 0;
|
|
}
|
|
|
|
/*** Delete the temporary file ***/
|
|
CARD_Close (&CardFile);
|
|
CardError = CARD_Delete(slot, "TEMPFILESNES9XGX201");
|
|
if (CardError)
|
|
{
|
|
CARD_Unmount (slot);
|
|
WaitPrompt("Unable to delete temporary file!");
|
|
return 0;
|
|
}
|
|
|
|
/*** Delete the existing shorter file ***/
|
|
CardError = CARD_Delete(slot, filename);
|
|
if (CardError)
|
|
{
|
|
CARD_Unmount (slot);
|
|
WaitPrompt("Unable to delete existing file!");
|
|
return 0;
|
|
}
|
|
|
|
/*** Create new, longer file ***/
|
|
CardError = CARD_Create (slot, filename, blocks, &CardFile);
|
|
if (CardError)
|
|
{
|
|
CARD_Unmount (slot);
|
|
WaitPrompt("Unable to create updated card file!");
|
|
return 0;
|
|
}
|
|
}
|
|
}
|
|
else /*** no file existed, create new one ***/
|
|
{
|
|
/*** Create new file ***/
|
|
CardError = CARD_Create (slot, filename, blocks, &CardFile);
|
|
if (CardError)
|
|
{
|
|
CARD_Unmount (slot);
|
|
if ( CardError == CARD_ERROR_INSSPACE )
|
|
WaitPrompt("Not enough space to create file!");
|
|
else
|
|
WaitPrompt("Unable to create card file!");
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/*** Now, have an open file handle, ready to send out the data ***/
|
|
CARD_GetStatus (slot, CardFile.filenum, &CardStatus);
|
|
CardStatus.icon_addr = 0x0;
|
|
CardStatus.icon_fmt = 2;
|
|
CardStatus.icon_speed = 1;
|
|
CardStatus.comment_addr = 2048;
|
|
CARD_SetStatus (slot, CardFile.filenum, &CardStatus);
|
|
|
|
int byteswritten = 0;
|
|
int bytesleft = blocks;
|
|
while (bytesleft > 0)
|
|
{
|
|
CardError =
|
|
CARD_Write (&CardFile, buf + byteswritten,
|
|
SectorSize, byteswritten);
|
|
bytesleft -= SectorSize;
|
|
byteswritten += SectorSize;
|
|
|
|
sprintf (msg, "Wrote %d of %d bytes", byteswritten, blocks);
|
|
ShowProgress (msg, byteswritten, blocks);
|
|
}
|
|
|
|
CARD_Close (&CardFile);
|
|
CARD_Unmount (slot);
|
|
|
|
if ( GCSettings.VerifySaves )
|
|
{
|
|
/*** Verify the written file, but only up to the length we wrote
|
|
because the file could be longer due to past writes ***/
|
|
if ( VerifyMCFile (buf, slot, filename, byteswritten) )
|
|
return byteswritten;
|
|
else
|
|
return 0;
|
|
}
|
|
else
|
|
return byteswritten;
|
|
}
|
|
else
|
|
if (slot == CARD_SLOTA)
|
|
WaitPrompt("Unable to Mount Slot A Memory Card!");
|
|
else
|
|
WaitPrompt("Unable to Mount Slot B Memory Card!");
|
|
|
|
return 0;
|
|
}
|