// Changed this stuff from C++ string to C strings for speed in debug mode. Doesn't matter in release, but
// std::string is SLOW in debug mode.
size_t CFileSystemGCWii::BuildFilenames(const size_t _FirstIndex, const size_t _LastIndex, const char* _szDirectory, u64 _NameTableOffset)
{
size_t CurrentIndex = _FirstIndex;
while (CurrentIndex < _LastIndex)
{
SFileInfo *rFileInfo = &m_FileInfoVector[CurrentIndex];
u64 uOffset = _NameTableOffset + (rFileInfo->m_NameOffset & 0xFFFFFF);
std::string filename = GetStringFromOffset(uOffset);
// check next index
if (rFileInfo->IsDirectory())
{
// this is a directory, build up the new szDirectory
if (_szDirectory != NULL)
CharArrayFromFormat(rFileInfo->m_FullPath, "%s%s/", _szDirectory, filename.c_str());
else
CharArrayFromFormat(rFileInfo->m_FullPath, "%s/", filename.c_str());
CurrentIndex = BuildFilenames(CurrentIndex + 1, (size_t) rFileInfo->m_FileSize, rFileInfo->m_FullPath, _NameTableOffset);
}
else
{
// this is a filename
if (_szDirectory != NULL)
CharArrayFromFormat(rFileInfo->m_FullPath, "%s%s", _szDirectory, filename.c_str());
else
CharArrayFromFormat(rFileInfo->m_FullPath, "%s", filename.c_str());
CurrentIndex++;
}
}
return CurrentIndex;
}
size_t CFileSystemGCWii::BuildFilenames(const size_t _FirstIndex, const size_t _LastIndex, const std::string& _szDirectory, u64 _NameTableOffset)
{
size_t CurrentIndex = _FirstIndex;
while (CurrentIndex < _LastIndex)
{
SFileInfo *rFileInfo = &m_FileInfoVector[CurrentIndex];
u64 uOffset = _NameTableOffset + (rFileInfo->m_NameOffset & 0xFFFFFF);
std::string filename = GetStringFromOffset(uOffset);
// check next index
if (rFileInfo->IsDirectory())
{
if (_szDirectory.empty())
rFileInfo->m_FullPath += StringFromFormat("%s/", filename.c_str());
else
rFileInfo->m_FullPath += StringFromFormat("%s%s/", _szDirectory.c_str(), filename.c_str());
CurrentIndex = BuildFilenames(CurrentIndex + 1, (size_t) rFileInfo->m_FileSize, rFileInfo->m_FullPath, _NameTableOffset);
}
else // This is a filename
{
if (_szDirectory.empty())
rFileInfo->m_FullPath += filename;
else
rFileInfo->m_FullPath += StringFromFormat("%s%s", _szDirectory.c_str(), filename.c_str());
CurrentIndex++;
}
}
return CurrentIndex;
}
void CFileSystemGCWii::InitFileSystem()
{
m_Initialized = true;
u32 const shift = GetOffsetShift();
// read the whole FST
u32 fst_offset_unshifted;
if (!m_rVolume->ReadSwapped(0x424, &fst_offset_unshifted, m_Wii))
return;
u64 FSTOffset = static_cast<u64>(fst_offset_unshifted) << shift;
// read all fileinfos
u32 name_offset, offset, size;
if (!m_rVolume->ReadSwapped(FSTOffset + 0x0, &name_offset, m_Wii) ||
!m_rVolume->ReadSwapped(FSTOffset + 0x4, &offset, m_Wii) ||
!m_rVolume->ReadSwapped(FSTOffset + 0x8, &size, m_Wii))
return;
SFileInfo root = {name_offset, static_cast<u64>(offset) << shift, size};
if (!root.IsDirectory())
return;
// 12 bytes (the size of a file entry) times 10 * 1024 * 1024 is 120 MiB,
// more than total RAM in a Wii. No file system should use anywhere near that much.
static const u32 ARBITRARY_FILE_SYSTEM_SIZE_LIMIT = 10 * 1024 * 1024;
if (root.m_FileSize > ARBITRARY_FILE_SYSTEM_SIZE_LIMIT)
{
// Without this check, Dolphin can crash by trying to allocate too much
// memory when loading the file systems of certain malformed disc images.
ERROR_LOG(DISCIO, "File system is abnormally large! Aborting loading");
return;
}
if (m_FileInfoVector.size())
PanicAlert("Wtf?");
u64 NameTableOffset = FSTOffset;
m_FileInfoVector.reserve((size_t)root.m_FileSize);
for (u32 i = 0; i < root.m_FileSize; i++)
{
const u64 read_offset = FSTOffset + (i * 0xC);
name_offset = 0;
m_rVolume->ReadSwapped(read_offset + 0x0, &name_offset, m_Wii);
offset = 0;
m_rVolume->ReadSwapped(read_offset + 0x4, &offset, m_Wii);
size = 0;
m_rVolume->ReadSwapped(read_offset + 0x8, &size, m_Wii);
m_FileInfoVector.emplace_back(name_offset, static_cast<u64>(offset) << shift, size);
NameTableOffset += 0xC;
}
BuildFilenames(1, m_FileInfoVector.size(), "", NameTableOffset);
}
bool
CARCFile::ParseBuffer()
{
// check ID
u32 ID = Common::swap32(*(u32*)(m_pBuffer));
if (ID != ARC_ID)
return false;
// read header
u32 FSTOffset = Common::swap32(*(u32*)(m_pBuffer + 0x4));
//u32 FSTSize = Common::swap32(*(u32*)(m_pBuffer + 0x8));
//u32 FileOffset = Common::swap32(*(u32*)(m_pBuffer + 0xC));
// read all file infos
SFileInfo Root;
Root.m_NameOffset = Common::swap32(*(u32*)(m_pBuffer + FSTOffset + 0x0));
Root.m_Offset = Common::swap32(*(u32*)(m_pBuffer + FSTOffset + 0x4));
Root.m_FileSize = Common::swap32(*(u32*)(m_pBuffer + FSTOffset + 0x8));
if (Root.IsDirectory())
{
m_FileInfoVector.resize((unsigned int)Root.m_FileSize);
const char* szNameTable = (char*)(m_pBuffer + FSTOffset);
for (size_t i = 0; i < m_FileInfoVector.size(); i++)
{
u8* Offset = m_pBuffer + FSTOffset + (i * 0xC);
m_FileInfoVector[i].m_NameOffset = Common::swap32(*(u32*)(Offset + 0x0));
m_FileInfoVector[i].m_Offset = Common::swap32(*(u32*)(Offset + 0x4));
m_FileInfoVector[i].m_FileSize = Common::swap32(*(u32*)(Offset + 0x8));
szNameTable += 0xC;
}
BuildFilenames(1, m_FileInfoVector.size(), NULL, szNameTable);
}
return(true);
}
void CFileSystemGCWii::InitFileSystem()
{
m_Initialized = true;
u32 const shift = GetOffsetShift();
// read the whole FST
u64 FSTOffset = static_cast<u64>(m_rVolume->Read32(0x424, m_Wii)) << shift;
// u32 FSTSize = Read32(0x428);
// u32 FSTMaxSize = Read32(0x42C);
// read all fileinfos
SFileInfo Root
{
m_rVolume->Read32(FSTOffset + 0x0, m_Wii),
static_cast<u64>(FSTOffset + 0x4) << shift,
m_rVolume->Read32(FSTOffset + 0x8, m_Wii)
};
if (!Root.IsDirectory())
return;
if (m_FileInfoVector.size())
PanicAlert("Wtf?");
u64 NameTableOffset = FSTOffset;
m_FileInfoVector.reserve((size_t)Root.m_FileSize);
for (u32 i = 0; i < Root.m_FileSize; i++)
{
u64 const read_offset = FSTOffset + (i * 0xC);
u64 const name_offset = m_rVolume->Read32(read_offset + 0x0, m_Wii);
u64 const offset = static_cast<u64>(m_rVolume->Read32(read_offset + 0x4, m_Wii)) << shift;
u64 const size = m_rVolume->Read32(read_offset + 0x8, m_Wii);
m_FileInfoVector.emplace_back(name_offset, offset, size);
NameTableOffset += 0xC;
}
BuildFilenames(1, m_FileInfoVector.size(), "", NameTableOffset);
}
void CFileSystemGCWii::InitFileSystem()
{
m_Initialized = true;
// read the whole FST
u64 FSTOffset = (u64)Read32(0x424) << m_OffsetShift;
// u32 FSTSize = Read32(0x428);
// u32 FSTMaxSize = Read32(0x42C);
// read all fileinfos
SFileInfo Root;
Root.m_NameOffset = Read32(FSTOffset + 0x0);
Root.m_Offset = (u64)Read32(FSTOffset + 0x4) << m_OffsetShift;
Root.m_FileSize = Read32(FSTOffset + 0x8);
if (Root.IsDirectory())
{
if (m_FileInfoVector.size())
PanicAlert("Wtf?");
u64 NameTableOffset = FSTOffset;
m_FileInfoVector.reserve((unsigned int)Root.m_FileSize);
for (u32 i = 0; i < Root.m_FileSize; i++)
{
SFileInfo sfi;
u64 Offset = FSTOffset + (i * 0xC);
sfi.m_NameOffset = Read32(Offset + 0x0);
sfi.m_Offset = (u64)Read32(Offset + 0x4) << m_OffsetShift;
sfi.m_FileSize = Read32(Offset + 0x8);
m_FileInfoVector.push_back(sfi);
NameTableOffset += 0xC;
}
BuildFilenames(1, m_FileInfoVector.size(), "", NameTableOffset);
}
}
bool CFileReceiver::getSingleFileInfo(const std::string &fileName,SFileInfo& fileInfo) const
{
// run through the attached proxies to find a match for the file...
for (TProxies::const_iterator pit= _Proxies.begin(); pit!=_Proxies.end();++pit)
{
// if there's a match for this proxy then it'll do
TFileInfoMap::const_iterator fit= pit->second.FileInfo.find(fileName);
if (fit!=pit->second.FileInfo.end())
{
fileInfo= fit->second;
return true;
}
}
// failed to find a match so clear out the file info record and return false
fileInfo.clear();
return false;
}
