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desmume
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core: 

- fix bug in backup savestate.
This commit is contained in:
mtabachenko 2013-11-21 18:00:17 +00:00
parent 1fa0886fe7
commit bdd4f2e3f5
1 changed files with 21 additions and 17 deletions
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38
desmume/src/mc.cpp
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@ -71,6 +71,7 @@
//so in r3303 I finally changed it (no$ appears definitely to initialize to 0xFF)
static u8 kUninitializedSaveDataValue = 0xFF;
static const char* DESMUME_BACKUP_FOOTER_TXT = "|<--Snip above here to create a raw sav by excluding this DeSmuME savedata footer:";
static const char* kDesmumeSaveCookie = "|-DESMUME SAVE-|";
static const u32 saveSizes[] = {512, // 4k
@ -124,6 +125,7 @@ bool BackupDevice::save_state(EMUFILE* os)
{
u32 savePos = fpMC->ftell();
std::vector<u8> data(fsize);
fpMC->fseek(0, SEEK_SET);
fread((char*)&data[0], 1, fsize, fpMC->get_fp());
u32 version = 5;
@ -159,12 +161,11 @@ bool BackupDevice::load_state(EMUFILE* is)
{
u32 version;
u32 temp;
std::vector<u8> data;
if(read32le(&version,is)!=1) return false;
if(version>=0)
{
std::vector<u8> data;
readbool(&write_enable,is);
read32le(&com,is);
read32le(&addr_size,is);
@ -172,12 +173,6 @@ bool BackupDevice::load_state(EMUFILE* is)
read32le(&temp,is);
state = (STATE)temp;
readbuffer(data,is);
fsize = data.size();
#ifndef _DONT_SAVE_BACKUP
fpMC->fseek(0, SEEK_SET);
fwrite((char*)&data[0], 1, fsize, fpMC->get_fp());
ensure(data.size(), fpMC);
#endif
readbuffer(data_autodetect,is);
}
if(version>=1)
@ -199,6 +194,13 @@ bool BackupDevice::load_state(EMUFILE* is)
read8le(&write_protect,is);
}
fsize = data.size();
#ifndef _DONT_SAVE_BACKUP
fpMC->fseek(0, SEEK_SET);
fwrite((char*)&data[0], 1, fsize, fpMC->get_fp());
ensure(data.size(), fpMC);
#endif
if(version>=5)
{
read32le(&temp,is);
@ -306,7 +308,7 @@ BackupDevice::BackupDevice()
fpMC->truncate(0);
if (readFooter() == 0)
fsize = fsize - 24;
fsize -= (strlen(kDesmumeSaveCookie) + strlen(DESMUME_BACKUP_FOOTER_TXT) + 24);
else
{
memset(&info, 0, sizeof(info));
@ -882,19 +884,21 @@ void BackupDevice::ensure(u32 addr, u8 val, EMUFILE_FILE *fpOut)
u32 padSize = pad_up_size(addr);
u32 size = padSize - fsize;
fsize = padSize;
info.padSize = fsize;
info.padSize = info.size = fsize = padSize;
int type = searchFileSaveType(fsize);
if (type != 0xFF) info.type = type;
if (type != 0xFF) info.type = (type + 1);
#ifndef _DONT_SAVE_BACKUP
u8 *tmp = new u8[size];
memset(tmp, val, size);
fwrite(tmp, 1, size, fp->get_fp());
delete [] tmp;
if (size > 0)
{
u8 *tmp = new u8[size];
memset(tmp, val, size);
fwrite(tmp, 1, size, fp->get_fp());
delete [] tmp;
}
//this is just for humans to read
fp->fprintf("|<--Snip above here to create a raw sav by excluding this DeSmuME savedata footer:");
fp->fprintf(DESMUME_BACKUP_FOOTER_TXT);
//and now the actual footer
fp->write32le(addr); //the size of data that has actually been written