BackupDevice::BackupDevice()
{
size_t elements_read, elements_written;
fpMC = NULL;
fsize = 0;
addr_size = 0;
isMovieMode = false;
//default for most games; will be altered where appropriate
//usually 0xFF, but occasionally others. If these exceptions could be related to a particular backup memory type, that would be helpful.
//at first we assumed it would be 0x00, but baby pals proved that it should be 0xFF:
// the game reads its initial sound volumes from uninitialized data, and if it is 0, the game will be silent
// if it is 0xFF then the game starts with its sound and music at max, as presumably it is supposed to.
// so in r3303 we finally changed it (no$ appears definitely to initialize to 0xFF)
uninitializedValue = 0xFF;
if (gameInfo.romsize == 0) return;
char buf[MAX_PATH] = {0};
memset(buf, 0, MAX_PATH);
path.getpathnoext(path.BATTERY, buf);
filename = std::string(buf) + ".dsv";
MCLOG("MC: %s\n", filename.c_str());
bool fexists = (access(filename.c_str(), 0) == 0)?true:false;
if (fexists && CommonSettings.backupSave)
{
std::string tmp_fsav = std::string(buf) + ".dsv.bak";
EMUFILE_FILE *in = new EMUFILE_FILE(filename, "rb");
if (!in->fail())
{
u32 sz = in->size();
if (sz > 0)
{
EMUFILE_FILE *out = new EMUFILE_FILE(tmp_fsav, "wb");
if (!out->fail())
{
u8 *data = new u8[sz];
elements_read = fread(data, 1, sz, in->get_fp());
elements_written = fwrite(data, 1, sz, out->get_fp());
if (elements_read != sz || elements_written != sz)
printf("Possibly incomplete data read/write.\n");
delete [] data;
}
delete out;
}
}
delete in;
}
if (!fexists)
{
printf("DeSmuME .dsv save file not found. Trying to load an old raw .sav file.\n");
std::string tmp_fsav = std::string(buf) + ".sav";
EMUFILE_FILE *fpTmp = new EMUFILE_FILE(tmp_fsav, "rb");
if (!fpTmp->fail())
{
u32 sz = fpTmp->size();
if (sz > 0)
{
EMUFILE_FILE *fpOut = new EMUFILE_FILE(filename, "wb");
if (!fpOut->fail())
{
u8 *buf = new u8[sz + 1];
if ((buf) && (fread(buf, 1, sz, fpTmp->get_fp()) == sz))
{
if (no_gba_unpack(buf, sz))
printf("Converted from no$gba save.\n");
else
sz = trim(buf, sz);
if (fwrite(buf, 1, sz, fpOut->get_fp()) == sz)
{
u8 res = searchFileSaveType(sz);
if (res != 0xFF)
{
info.type = (res + 1);
addr_size = info.addr_size = save_types[info.type].addr_size;
info.size = fsize = sz;
ensure(sz, fpOut);
fsize = 0;
}
else
info.type = 0;
fexists = true;
}
}
delete [] buf;
}
delete fpOut;
}
}
delete fpTmp;
}
fpMC = new EMUFILE_FILE(filename, fexists?"rb+":"wb+");
if (!fpMC->fail())
{
fsize = fpMC->size();
if (fsize < saveSizes[0])
fpMC->truncate(0);
if (readFooter() == 0)
fsize -= (strlen(kDesmumeSaveCookie) + strlen(DESMUME_BACKUP_FOOTER_TXT) + 24);
else
{
memset(&info, 0, sizeof(info));
fsize = 0;
}
fpMC->fseek(0, SEEK_SET);
u32 left = 0;
if (CommonSettings.autodetectBackupMethod == 1)
{
if (advsc.isLoaded())
{
info.type = advsc.getSaveType();
if (info.type != 0xFF && info.type != 0xFE)
{
info.type++;
u32 adv_size = save_types[info.type].size;
if (info.size > adv_size)
{
info.size = adv_size;
fpMC->truncate(adv_size);
ensure(adv_size, fpMC);
}
else
if (info.size < adv_size)
{
left = adv_size - info.size;
info.size = adv_size;
ensure(adv_size);
}
fsize = adv_size;
}
}
}
addr_size = info.addr_size;
info.padSize = fsize;
//none of the other fields are used right now
if (CommonSettings.autodetectBackupMethod != 1 && info.type == 0)
{
info.type = searchFileSaveType(info.size);
if (info.type == 0xFF) info.type = 0;
}
u32 ss = (info.padSize * 8) / 1024;
bool _Mbit = false;
if (ss >= 1024)
{
ss /= 1024;
_Mbit = true;
}
if (ss > 0)
printf("Backup size: %u %cbit\n", ss, _Mbit?'M':'K');
}
state = (fsize > 0)?RUNNING:DETECTING;
reset();
}
BackupDevice::BackupDevice()
{
fpMC = NULL;
fsize = 0;
addr_size = 0;
isMovieMode = false;
if (gameInfo.romsize == 0) return;
char buf[MAX_PATH] = {0};
memset(buf, 0, MAX_PATH);
path.getpathnoext(path.BATTERY, buf);
filename = std::string(buf) + ".dsv"; // DeSmuME memory card
MCLOG("MC: %s\n", filename.c_str());
bool fexists = (access(filename.c_str(), 0) == 0)?true:false;
if (fexists && CommonSettings.backupSave)
{
std::string tmp_fsav = std::string(buf) + ".dsv.bak";
EMUFILE_FILE *in = new EMUFILE_FILE(filename, "rb");
if (!in->fail())
{
u32 sz = in->size();
if (sz > 0)
{
EMUFILE_FILE *out = new EMUFILE_FILE(tmp_fsav, "wb");
if (!out->fail())
{
u8 *data = new u8[sz];
fread(data, 1, sz, in->get_fp());
fwrite(data, 1, sz, out->get_fp());
delete [] data;
}
delete out;
}
}
delete in;
}
if (!fexists)
{
printf("DeSmuME .dsv save file not found. Trying to load an old raw .sav file.\n");
std::string tmp_fsav = std::string(buf) + ".sav";
EMUFILE_FILE *fpTmp = new EMUFILE_FILE(tmp_fsav, "rb");
if (!fpTmp->fail())
{
u32 sz = fpTmp->size();
if (sz > 0)
{
EMUFILE_FILE *fpOut = new EMUFILE_FILE(filename, "wb");
if (!fpOut->fail())
{
u8 *buf = new u8[sz + 1];
if ((buf) && (fread(buf, 1, sz, fpTmp->get_fp()) == sz))
{
if (no_gba_unpack(buf, sz))
printf("Converted from no$gba save.\n");
else
sz = trim(buf, sz);
if (fwrite(buf, 1, sz, fpOut->get_fp()) == sz)
{
u8 res = searchFileSaveType(sz);
if (res != 0xFF)
{
info.type = (res + 1);
addr_size = info.addr_size = save_types[info.type].addr_size;
info.size = fsize = sz;
ensure(sz, fpOut);
fsize = 0;
}
else
info.type = 0;
fexists = true;
}
}
delete [] buf;
}
delete fpOut;
}
}
delete fpTmp;
}
fpMC = new EMUFILE_FILE(filename, fexists?"rb+":"wb+");
if (!fpMC->fail())
{
fsize = fpMC->size();
if (fsize < saveSizes[0])
fpMC->truncate(0);
if (readFooter() == 0)
fsize -= (strlen(kDesmumeSaveCookie) + strlen(DESMUME_BACKUP_FOOTER_TXT) + 24);
else
{
memset(&info, 0, sizeof(info));
fsize = 0;
}
fpMC->fseek(0, SEEK_SET);
u32 left = 0;
if (CommonSettings.autodetectBackupMethod == 1)
{
if (advsc.isLoaded())
{
info.type = advsc.getSaveType();
if (info.type != 0xFF && info.type != 0xFE)
{
info.type++;
u32 adv_size = save_types[info.type].size;
if (info.size > adv_size)
{
info.size = adv_size;
fpMC->truncate(adv_size);
ensure(adv_size, fpMC);
}
else
if (info.size < adv_size)
{
left = adv_size - info.size;
info.size = adv_size;
ensure(adv_size);
}
fsize = adv_size;
}
}
}
addr_size = info.addr_size;
info.padSize = fsize;
//none of the other fields are used right now
if (CommonSettings.autodetectBackupMethod != 1 && info.type == 0)
{
info.type = searchFileSaveType(info.size);
if (info.type == 0xFF) info.type = 0;
}
u32 ss = (info.padSize * 8) / 1024;
bool _Mbit = false;
if (ss >= 1024)
{
ss /= 1024;
_Mbit = true;
}
if (ss > 0)
printf("Backup size: %u %cbit\n", ss, _Mbit?'M':'K');
}
state = (fsize > 0)?RUNNING:DETECTING;
reset();
}
//---------------------------------------------------------------------------
void AudioCodec::close()
{
readFooter();
mDataStream.setNull();
}
int main()
{
FILE* fp;
size_t i = 0;
size_t offset;
fp = fopen("src.ldb","r");
if(fp == NULL){
printf("error!\n");
return 1;
}
unsigned char a[] = "src.ldb";
unsigned char b[] = "1-959-250-4279";
//"1-114-560-9305";
Slice filename;
Slice lastKey;/* 用于存储最后一次读取到的key */
Slice srckey; /* 存储要查找、删除、修改、添加的key */
DBhandle dbhandle;
Footer footer;
Block dataIndexBlock;
Block* blockArray;
BlockEntry blockEntry;
initSlice(&filename,10);
initSlice(&lastKey,20);
initBlockEntry(&blockEntry);
initDBhandle(&dbhandle);
setSlice(&dbhandle.key_,b,22);
setSlice(&filename,a,strlen((char*)a));
sequentialFile* psFile = (sequentialFile*)malloc(sizeof(sequentialFile));
setSequentialFile(psFile,fp,&filename);
readFooter(psFile,&footer);
showFooter(&footer);
/* 读取data index block，存储在dataBlock中 */
readBlock(psFile,&dataIndexBlock,footer.dataIndexHandle);
blockArray = (Block*)malloc(sizeof(Block)*dataIndexBlock.restartNum);
if(blockArray == NULL){
printf("error:blockArray is NULL.\n");
return 1;
}
readAllBlock(psFile,blockArray,&dataIndexBlock);
/*设置操作为Read*/
dbhandle.type = 1;
dbcmd(blockArray,&dataIndexBlock,&dbhandle);
/*
* 至此，所有的block都已经读取到内存中,data block的内容存储在blockarray中，
* data block的索引信息存储在dataIndexBlock中
*/
/*
*
*/
//showBlokRestart(&dataIndexBlock);
for(i = 0;i < dataIndexBlock.restartNum;i++){
//showBlockData(&(blockArray[i]));
}
freeBlockEntry(&blockEntry);
freeDBhandle(&dbhandle);
fclose(fp);
printf("Hello World!\n");
return 0;
}
