mirror of
https://github.com/dborth/snes9xgx.git
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150 lines
2.9 KiB
C++
150 lines
2.9 KiB
C++
/****************************************************************************
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* Snes9x 1.51 Nintendo Wii/Gamecube Port
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*
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* crunchy2 April 2007-July 2007
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* Michniewski 2008
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* Tantric 2008-2009
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*
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* sram.cpp
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*
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* SRAM save/load/import/export handling
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***************************************************************************/
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#include <gccore.h>
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#include <stdio.h>
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#include <string.h>
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#include <ogcsys.h>
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#include "snes9x.h"
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#include "memmap.h"
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#include "srtc.h"
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#include "snes9xGX.h"
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#include "menu.h"
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#include "fileop.h"
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#include "filebrowser.h"
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#include "input.h"
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/****************************************************************************
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* Load SRAM
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***************************************************************************/
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bool
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LoadSRAM (char * filepath, bool silent)
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{
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int len = 0;
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int device;
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bool result = false;
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if(!FindDevice(filepath, &device))
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return 0;
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Memory.ClearSRAM();
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int size = Memory.SRAMSize ? (1 << (Memory.SRAMSize + 3)) * 128 : 0;
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if (size > 0x20000)
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size = 0x20000;
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if (size)
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{
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len = LoadFile((char *)Memory.SRAM, filepath, size, silent);
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if (len > 0)
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{
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if (len - size == 512)
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memmove(Memory.SRAM, Memory.SRAM + 512, size);
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result = true;
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}
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else if(!silent)
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{
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// if we reached here, nothing was done!
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ErrorPrompt("SRAM file not found");
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}
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S9xSoftReset();
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}
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return result;
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}
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bool
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LoadSRAMAuto (bool silent)
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{
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char filepath[MAXPATHLEN];
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char filepath2[MAXPATHLEN];
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// look for Auto save file
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if(!MakeFilePath(filepath, FILE_SRAM, Memory.ROMFilename, 0))
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return false;
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if (LoadSRAM(filepath, silent))
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return true;
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// look for file with no number or Auto appended
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if(!MakeFilePath(filepath2, FILE_SRAM, Memory.ROMFilename, -1))
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return false;
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if(LoadSRAM(filepath2, silent))
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{
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// rename this file - append Auto
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rename(filepath2, filepath); // rename file (to avoid duplicates)
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return true;
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}
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return false;
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}
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/****************************************************************************
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* Save SRAM
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***************************************************************************/
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bool
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SaveSRAM (char * filepath, bool silent)
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{
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bool retval = false;
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int offset = 0;
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int device;
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if(!FindDevice(filepath, &device))
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return 0;
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if (Settings.SuperFX && Memory.ROMType < 0x15) // doesn't have SRAM
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return true;
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if (Settings.SA1 && Memory.ROMType == 0x34) // doesn't have SRAM
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return true;
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// determine SRAM size
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int size = Memory.SRAMSize ? (1 << (Memory.SRAMSize + 3)) * 128 : 0;
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if (size > 0x20000)
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size = 0x20000;
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if (size > 0)
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{
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offset = SaveFile((char *)Memory.SRAM, filepath, size, silent);
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if (offset > 0)
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{
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if (!silent)
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InfoPrompt("Save successful");
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retval = true;
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}
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}
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else
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{
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if(!silent)
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ErrorPrompt("No SRAM data to save!");
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}
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return retval;
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}
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bool
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SaveSRAMAuto (bool silent)
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{
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char filepath[1024];
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if(!MakeFilePath(filepath, FILE_SRAM, Memory.ROMFilename, 0))
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return false;
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return SaveSRAM(filepath, silent);
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}
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