bool savestate_save(EMUFILE* outstream)
{
#ifdef HAVE_JIT
arm_jit_sync();
#endif
EMUFILE_MEMORY ms;
EMUFILE* os = outstream;
os->fseek(32,SEEK_SET); //skip the header
writechunks(os);
//save the length of the file
u32 len = os->ftell();
u32 comprlen = 0xFFFFFFFF;
u8* cbuf;
//dump the header
outstream->fseek(0,SEEK_SET);
outstream->fwrite(magic,16);
write32le(SAVESTATE_VERSION,outstream);
write32le(EMU_DESMUME_VERSION_NUMERIC(),outstream); //desmume version
write32le(len,outstream); //uncompressed length
write32le(comprlen,outstream); //compressed length (-1 if it is not compressed)
return true;
}
u32 readRom(const u32 pos, const u8 size)
{
if (!fROM) return 0xFFFFFFFF;
fROM->fseek(pos, SEEK_SET);
u32 data = 0xFFFFFFFF;
u32 readed = fROM->fread(&data, size);
return data;
}
void writeSRAM(const u32 pos, const u8 *data, u32 size)
{
if (!fSRAM)
return;
fSRAM->fseek(pos, SEEK_SET);
u32 writed = size;
fSRAM->fwrite(data, size);
fSRAM->fflush();
}
u32 readSRAM(const u32 pos, const u8 size)
{
if (!fSRAM)
return 0xFFFFFFFF;
fSRAM->fseek(pos, SEEK_SET);
u32 data = 0xFFFFFFFF;
u32 readed = fSRAM->fread(&data, size);
return data;
}
static void DEBUG_dumpMemory_fill(EMUFILE &fp, u32 size)
{
static std::vector<u8> buf;
buf.resize(size);
memset(&buf[0],0,size);
fp.fwrite(&buf[0],size);
}
static bool formatChunk(EMUFILE &inf)
{
// seek to just after the RIFF header
inf.fseek(12,SEEK_SET);
// search for a format chunk
for (;;)
{
char chunk_id[4];
u32 chunk_length;
inf.fread(chunk_id, 4);
if (!inf.read_32LE(chunk_length)) return false;
// if we found a format chunk, excellent!
if (memcmp(chunk_id, "fmt ", 4) == 0 && chunk_length >= 16)
{
// read format chunk
u16 format_tag;
u16 channel_count;
u32 samples_per_second;
//u32 bytes_per_second = read32_le(chunk + 8);
//u16 block_align = read16_le(chunk + 12);
u16 bits_per_sample;
if (inf.read_16LE(format_tag) != 1) return false;
if (inf.read_16LE(channel_count) != 1) return false;
if (inf.read_32LE(samples_per_second) != 1) return false;
inf.fseek(6,SEEK_CUR);
if (inf.read_16LE(bits_per_sample) != 1) return false;
chunk_length -= 16;
// format_tag must be 1 (WAVE_FORMAT_PCM)
// we only support mono 8bit
if (format_tag != 1 ||
channel_count != 1 ||
bits_per_sample != 8)
{
MessageBox(0,"not a valid RIFF WAVE file; must be 8bit mono pcm",0,0);
return false;
}
return true;
}
inf.fseek(chunk_length,SEEK_CUR);
}
return false;
}
u32 scanSaveTypeGBA()
{
if (!fROM) return 0xFF;
fROM->fseek(0, SEEK_SET);
int size = fROM->size();
int lastpct=1;
int len = fROM->size();
for(;;)
{
u32 tmp;
u32 readed = fROM->fread(&tmp, 4);
int pos = fROM->ftell();
int currPct = pos*100/(size-1);
for(int i=lastpct;i<currPct;i++)
{
if(i%10==0)
printf(" %d%%\n",i/10*10);
else printf(".");
lastpct = currPct;
}
if (readed < 4)
break;
if(pos >= len)
break;
switch (tmp)
{
case EEPROM:
return 1;
case SRAM_:
return 2;
case FLASH:
{
u32 tmp = fROM->read32le();
return ((tmp == FLASH1M_)?3:5);
}
case SIIRTC_V:
return 4;
}
}
return 0xFF;
}
void BackupDevice::flush()
{
//never use save files if we are in movie mode
if(isMovieMode) return;
if (filename.length() == 0) return;
EMUFILE* outf = new EMUFILE_FILE(filename.c_str(),"wb");
if(!outf->fail())
{
if(data.size()>0)
outf->fwrite(&data[0],data.size());
//write the footer. we use a footer so that we can maximize the chance of the
//save file being recognized as a raw save file by other emulators etc.
//first, pad up to the next largest known save size.
u32 size = data.size();
u32 padSize = pad_up_size(size);
for(u32 i=size;i<padSize;i++)
outf->fputc(kUninitializedSaveDataValue);
//this is just for humans to read
outf->fprintf("|<--Snip above here to create a raw sav by excluding this DeSmuME savedata footer:");
//and now the actual footer
write32le(size,outf); //the size of data that has actually been written
write32le(padSize,outf); //the size we padded it to
write32le(info.type,outf); //save memory type
write32le(addr_size,outf);
write32le(info.size,outf); //save memory size
write32le(0,outf); //version number
outf->fprintf("%s", kDesmumeSaveCookie); //this is what we'll use to recognize the desmume format save
delete outf;
}
else
{
delete outf;
printf("Unable to open savefile %s\n", filename.c_str());
}
}
static bool dataChunk(EMUFILE &inf)
{
bool found = false;
// seek to just after the RIFF header
inf.fseek(12,SEEK_SET);
// search for a format chunk
for (;;)
{
char chunk_id[4];
u32 chunk_length;
if (inf.eof()) return found;
if (inf.fread(chunk_id, 4) != 4) return found;
if (!inf.read_32LE(chunk_length)) return found;
// if we found a data chunk, excellent!
if (memcmp(chunk_id, "data", 4) == 0)
{
found = true;
u8 *temp = new u8[chunk_length];
if (inf.fread(temp,chunk_length) != chunk_length)
{
delete[] temp;
return false;
}
newWavData.fwrite(temp,chunk_length);
delete[] temp;
chunk_length = 0;
}
inf.fseek(chunk_length,SEEK_CUR);
}
return found;
}
bool FCEUSS_SaveMS(EMUFILE* outstream, int compressionLevel)
{
// reinit memory_savestate
// memory_savestate is global variable which already has its vector of bytes, so no need to allocate memory every time we use save/loadstate
memory_savestate.set_len(0); // this also seeks to the beginning
memory_savestate.unfail();
EMUFILE* os = &memory_savestate;
uint32 totalsize = 0;
FCEUPPU_SaveState();
FCEUSND_SaveState();
totalsize=WriteStateChunk(os,1,SFCPU);
totalsize+=WriteStateChunk(os,2,SFCPUC);
totalsize+=WriteStateChunk(os,3,FCEUPPU_STATEINFO);
totalsize+=WriteStateChunk(os,31,FCEU_NEWPPU_STATEINFO);
totalsize+=WriteStateChunk(os,4,FCEUCTRL_STATEINFO);
totalsize+=WriteStateChunk(os,5,FCEUSND_STATEINFO);
if(FCEUMOV_Mode(MOVIEMODE_PLAY|MOVIEMODE_RECORD|MOVIEMODE_FINISHED))
{
totalsize+=WriteStateChunk(os,6,FCEUMOV_STATEINFO);
//MBG TAS Editor HACK HACK HACK!
//do not save the movie state if we are in Taseditor! That would be a huge waste of time and space!
if(!FCEUMOV_Mode(MOVIEMODE_TASEDITOR))
{
os->fseek(5,SEEK_CUR);
int size = FCEUMOV_WriteState(os);
os->fseek(-(size+5),SEEK_CUR);
os->fputc(7);
write32le(size, os);
os->fseek(size,SEEK_CUR);
totalsize += 5 + size;
}
}
// save back buffer
{
extern uint8 *XBackBuf;
uint32 size = 256 * 256 + 8;
os->fputc(8);
write32le(size, os);
os->fwrite((char*)XBackBuf,size);
totalsize += 5 + size;
}
if(SPreSave) SPreSave();
totalsize+=WriteStateChunk(os,0x10,SFMDATA);
if(SPreSave) SPostSave();
//save the length of the file
int len = memory_savestate.size();
//sanity check: len and totalsize should be the same
if(len != totalsize)
{
FCEUD_PrintError("sanity violation: len != totalsize");
return false;
}
int error = Z_OK;
uint8* cbuf = (uint8*)memory_savestate.buf();
uLongf comprlen = -1;
if(compressionLevel != Z_NO_COMPRESSION && (compressSavestates || FCEUMOV_Mode(MOVIEMODE_TASEDITOR)))
{
// worst case compression: zlib says "0.1% larger than sourceLen plus 12 bytes"
comprlen = (len>>9)+12 + len;
if (compressed_buf.size() < comprlen) compressed_buf.resize(comprlen);
cbuf = &compressed_buf[0];
// do compression
error = compress2(cbuf, &comprlen, (uint8*)memory_savestate.buf(), len, compressionLevel);
}
bool FCEUSS_SaveMS(EMUFILE* outstream, int compressionLevel)
{
//a temp memory stream. we'll dump some data here and then compress
//TODO - support dumping directly without compressing to save a buffer copy
EMUFILE_MEMORY ms;
EMUFILE* os = &ms;
uint32 totalsize = 0;
FCEUPPU_SaveState();
FCEUSND_SaveState();
totalsize=WriteStateChunk(os,1,SFCPU);
totalsize+=WriteStateChunk(os,2,SFCPUC);
totalsize+=WriteStateChunk(os,3,FCEUPPU_STATEINFO);
totalsize+=WriteStateChunk(os,31,FCEU_NEWPPU_STATEINFO);
totalsize+=WriteStateChunk(os,4,FCEUCTRL_STATEINFO);
totalsize+=WriteStateChunk(os,5,FCEUSND_STATEINFO);
if(FCEUMOV_Mode(MOVIEMODE_PLAY|MOVIEMODE_RECORD|MOVIEMODE_FINISHED))
{
totalsize+=WriteStateChunk(os,6,FCEUMOV_STATEINFO);
//MBG tasedit HACK HACK HACK!
//do not save the movie state if we are in tasedit! that is a huge waste of time and space!
if(!FCEUMOV_Mode(MOVIEMODE_TASEDIT))
{
os->fseek(5,SEEK_CUR);
int size = FCEUMOV_WriteState(os);
os->fseek(-(size+5),SEEK_CUR);
os->fputc(7);
write32le(size, os);
os->fseek(size,SEEK_CUR);
totalsize += 5 + size;
}
}
// save back buffer
{
extern uint8 *XBackBuf;
uint32 size = 256 * 256 + 8;
os->fputc(8);
write32le(size, os);
os->fwrite((char*)XBackBuf,size);
totalsize += 5 + size;
}
if(SPreSave) SPreSave();
totalsize+=WriteStateChunk(os,0x10,SFMDATA);
if(SPreSave) SPostSave();
//save the length of the file
int len = ms.size();
//sanity check: len and totalsize should be the same
if(len != totalsize)
{
FCEUD_PrintError("sanity violation: len != totalsize");
return false;
}
int error = Z_OK;
uint8* cbuf = (uint8*)ms.buf();
uLongf comprlen = -1;
if(compressionLevel != Z_NO_COMPRESSION && compressSavestates)
{
//worst case compression.
//zlib says "0.1% larger than sourceLen plus 12 bytes"
comprlen = (len>>9)+12 + len;
cbuf = new uint8[comprlen];
error = compress2(cbuf,&comprlen,(uint8*)ms.buf(),len,compressionLevel);
}
bool mic_loadstate(EMUFILE &is, int size)
{
is.fseek(size, SEEK_CUR);
return true;
}
void mic_savestate(EMUFILE &os)
{
os.write_32LE(-1);
}
virtual void connect()
{
Close();
romSize = 0;
sramSize = 0;
if (gameInfo.romsize == 0)
{
return;
}
if (GBACartridge_RomPath.empty())
{
return;
}
if (!strcasecmp(GBACartridge_RomPath.c_str(), "self"))
{
GBACartridge_RomPath = path.path;
GBACartridge_SRAMPath = Path::GetFileNameWithoutExt(GBACartridge_RomPath) + "." + GBA_SRAM_FILE_EXT;
}
printf("GBASlot opening ROM: %s\n", GBACartridge_RomPath.c_str());
EMUFILE_FILE *inf = new EMUFILE_FILE(GBACartridge_RomPath, "rb");
inf->EnablePositionCache();
fROM = inf;
if (fROM->fail())
{
printf(" - Failed\n");
Close();
return;
}
romSize = fROM->size();
printf(" - Success (%u bytes)\n", romSize);
// Load the GBA cartridge SRAM.
inf = new EMUFILE_FILE(GBACartridge_SRAMPath, "rb+");
fSRAM = inf;
if(fSRAM->fail())
{
delete fSRAM;
fSRAM = NULL;
printf("GBASlot did not load associated SRAM.\n");
}
else
{
inf->EnablePositionCache();
sramSize = fSRAM->size();
printf("Scanning GBA rom to ID save type\n");
saveType = scanSaveTypeGBA();
printf("\nGBASlot found SRAM (%s - %u bytes) at:\n%s\n", (saveType == 0xFF)?"Unknown":saveTypes[saveType], sramSize, GBACartridge_SRAMPath.c_str());
gbaFlash.size = sramSize;
if (gbaFlash.size <= (64 * 1024))
{
gbaFlash.idDevice = 0x1B;
gbaFlash.idManufacturer = 0x32;
}
else
{
gbaFlash.idDevice = 0x09;
gbaFlash.idManufacturer = 0xC2;
}
gbaFlash.state = 0;
}
}
void DEBUG_dumpMemory(EMUFILE &fp)
{
fp.fseek(0x000000,SEEK_SET); fp.fwrite(MMU.MAIN_MEM,0x800000); //arm9 main mem (8192K)
fp.fseek(0x900000,SEEK_SET); fp.fwrite(MMU.ARM9_DTCM,0x4000); //arm9 DTCM (16K)
fp.fseek(0xA00000,SEEK_SET); fp.fwrite(MMU.ARM9_ITCM,0x8000); //arm9 ITCM (32K)
fp.fseek(0xB00000,SEEK_SET); fp.fwrite(MMU.ARM9_LCD,0xA4000); //LCD mem 656K
fp.fseek(0xC00000,SEEK_SET); fp.fwrite(MMU.ARM9_VMEM,0x800); //OAM
fp.fseek(0xD00000,SEEK_SET); fp.fwrite(MMU.ARM7_ERAM,0x10000); //arm7 WRAM (64K)
fp.fseek(0xE00000,SEEK_SET); fp.fwrite(MMU.ARM7_WIRAM,0x10000); //arm7 wifi RAM ?
fp.fseek(0xF00000,SEEK_SET); fp.fwrite(MMU.SWIRAM,0x8000); //arm9/arm7 shared WRAM (32KB)
}