mirror of
https://github.com/dolphin-emu/dolphin.git
synced 2024-11-15 05:47:56 -07:00
338 lines
7.8 KiB
C++
338 lines
7.8 KiB
C++
// Copyright 2013 Dolphin Emulator Project
|
|
// Licensed under GPLv2
|
|
// Refer to the license.txt file included.
|
|
|
|
#include "Common.h"
|
|
#include "FileUtil.h"
|
|
|
|
#include <string>
|
|
#include <vector>
|
|
#include <algorithm>
|
|
|
|
#include "FileSystemGCWii.h"
|
|
#include "StringUtil.h"
|
|
|
|
namespace DiscIO
|
|
{
|
|
CFileSystemGCWii::CFileSystemGCWii(const IVolume *_rVolume)
|
|
: IFileSystem(_rVolume)
|
|
, m_Initialized(false)
|
|
, m_Valid(false)
|
|
, m_OffsetShift(0)
|
|
{
|
|
m_Valid = DetectFileSystem();
|
|
}
|
|
|
|
CFileSystemGCWii::~CFileSystemGCWii()
|
|
{
|
|
m_FileInfoVector.clear();
|
|
}
|
|
|
|
u64 CFileSystemGCWii::GetFileSize(const char* _rFullPath)
|
|
{
|
|
if (!m_Initialized)
|
|
InitFileSystem();
|
|
|
|
const SFileInfo* pFileInfo = FindFileInfo(_rFullPath);
|
|
|
|
if (pFileInfo != NULL && !pFileInfo->IsDirectory())
|
|
return pFileInfo->m_FileSize;
|
|
|
|
return 0;
|
|
}
|
|
|
|
const char* CFileSystemGCWii::GetFileName(u64 _Address)
|
|
{
|
|
if (!m_Initialized)
|
|
InitFileSystem();
|
|
|
|
for (size_t i = 0; i < m_FileInfoVector.size(); i++)
|
|
{
|
|
if ((m_FileInfoVector[i].m_Offset <= _Address) &&
|
|
((m_FileInfoVector[i].m_Offset + m_FileInfoVector[i].m_FileSize) > _Address))
|
|
{
|
|
return m_FileInfoVector[i].m_FullPath;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
u64 CFileSystemGCWii::ReadFile(const char* _rFullPath, u8* _pBuffer, size_t _MaxBufferSize)
|
|
{
|
|
if (!m_Initialized)
|
|
InitFileSystem();
|
|
|
|
const SFileInfo* pFileInfo = FindFileInfo(_rFullPath);
|
|
if (pFileInfo == NULL)
|
|
return 0;
|
|
|
|
if (pFileInfo->m_FileSize > _MaxBufferSize)
|
|
return 0;
|
|
|
|
DEBUG_LOG(DISCIO, "Filename: %s. Offset: %llx. Size: %llx",_rFullPath,
|
|
pFileInfo->m_Offset, pFileInfo->m_FileSize);
|
|
|
|
m_rVolume->Read(pFileInfo->m_Offset, pFileInfo->m_FileSize, _pBuffer);
|
|
return pFileInfo->m_FileSize;
|
|
}
|
|
|
|
bool CFileSystemGCWii::ExportFile(const char* _rFullPath, const char* _rExportFilename)
|
|
{
|
|
if (!m_Initialized)
|
|
InitFileSystem();
|
|
|
|
const SFileInfo* pFileInfo = FindFileInfo(_rFullPath);
|
|
|
|
if (!pFileInfo)
|
|
return false;
|
|
|
|
u64 remainingSize = pFileInfo->m_FileSize;
|
|
u64 fileOffset = pFileInfo->m_Offset;
|
|
|
|
File::IOFile f(_rExportFilename, "wb");
|
|
if (!f)
|
|
return false;
|
|
|
|
bool result = true;
|
|
|
|
while (remainingSize)
|
|
{
|
|
// Limit read size to 128 MB
|
|
size_t readSize = (size_t)min(remainingSize, (u64)0x08000000);
|
|
|
|
std::vector<u8> buffer(readSize);
|
|
|
|
result = m_rVolume->Read(fileOffset, readSize, &buffer[0]);
|
|
|
|
if (!result)
|
|
break;
|
|
|
|
f.WriteBytes(&buffer[0], readSize);
|
|
|
|
remainingSize -= readSize;
|
|
fileOffset += readSize;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
bool CFileSystemGCWii::ExportApploader(const char* _rExportFolder) const
|
|
{
|
|
u32 AppSize = Read32(0x2440 + 0x14);// apploader size
|
|
AppSize += Read32(0x2440 + 0x18); // + trailer size
|
|
AppSize += 0x20; // + header size
|
|
DEBUG_LOG(DISCIO,"AppSize -> %x", AppSize);
|
|
|
|
std::vector<u8> buffer(AppSize);
|
|
if (m_rVolume->Read(0x2440, AppSize, &buffer[0]))
|
|
{
|
|
std::string exportName(_rExportFolder);
|
|
exportName += "/apploader.img";
|
|
|
|
File::IOFile AppFile(exportName, "wb");
|
|
if (AppFile)
|
|
{
|
|
AppFile.WriteBytes(&buffer[0], AppSize);
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
u32 CFileSystemGCWii::GetBootDOLSize() const
|
|
{
|
|
u32 DolOffset = Read32(0x420) << m_OffsetShift;
|
|
u32 DolSize = 0, offset = 0, size = 0;
|
|
|
|
// Iterate through the 7 code segments
|
|
for (u8 i = 0; i < 7; i++)
|
|
{
|
|
offset = Read32(DolOffset + 0x00 + i * 4);
|
|
size = Read32(DolOffset + 0x90 + i * 4);
|
|
if (offset + size > DolSize)
|
|
DolSize = offset + size;
|
|
}
|
|
|
|
// Iterate through the 11 data segments
|
|
for (u8 i = 0; i < 11; i++)
|
|
{
|
|
offset = Read32(DolOffset + 0x1c + i * 4);
|
|
size = Read32(DolOffset + 0xac + i * 4);
|
|
if (offset + size > DolSize)
|
|
DolSize = offset + size;
|
|
}
|
|
return DolSize;
|
|
}
|
|
|
|
bool CFileSystemGCWii::GetBootDOL(u8* &buffer, u32 DolSize) const
|
|
{
|
|
u32 DolOffset = Read32(0x420) << m_OffsetShift;
|
|
return m_rVolume->Read(DolOffset, DolSize, buffer);
|
|
}
|
|
|
|
bool CFileSystemGCWii::ExportDOL(const char* _rExportFolder) const
|
|
{
|
|
u32 DolOffset = Read32(0x420) << m_OffsetShift;
|
|
u32 DolSize = GetBootDOLSize();
|
|
|
|
std::vector<u8> buffer(DolSize);
|
|
if (m_rVolume->Read(DolOffset, DolSize, &buffer[0]))
|
|
{
|
|
std::string exportName(_rExportFolder);
|
|
exportName += "/boot.dol";
|
|
|
|
File::IOFile DolFile(exportName, "wb");
|
|
if (DolFile)
|
|
{
|
|
DolFile.WriteBytes(&buffer[0], DolSize);
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
u32 CFileSystemGCWii::Read32(u64 _Offset) const
|
|
{
|
|
u32 Temp = 0;
|
|
m_rVolume->Read(_Offset, 4, (u8*)&Temp);
|
|
return Common::swap32(Temp);
|
|
}
|
|
|
|
std::string CFileSystemGCWii::GetStringFromOffset(u64 _Offset) const
|
|
{
|
|
std::string data;
|
|
data.resize(255);
|
|
m_rVolume->Read(_Offset, data.size(), (u8*)&data[0]);
|
|
data.erase(std::find(data.begin(), data.end(), 0x00), data.end());
|
|
|
|
// TODO: Should we really always use SHIFT-JIS?
|
|
// It makes some filenames in Pikmin (NTSC-U) sane, but is it correct?
|
|
return SHIFTJISToUTF8(data);
|
|
}
|
|
|
|
size_t CFileSystemGCWii::GetFileList(std::vector<const SFileInfo *> &_rFilenames)
|
|
{
|
|
if (!m_Initialized)
|
|
InitFileSystem();
|
|
|
|
if (_rFilenames.size())
|
|
PanicAlert("GetFileList : input list has contents?");
|
|
_rFilenames.clear();
|
|
_rFilenames.reserve(m_FileInfoVector.size());
|
|
for (size_t i = 0; i < m_FileInfoVector.size(); i++)
|
|
_rFilenames.push_back(&m_FileInfoVector[i]);
|
|
return m_FileInfoVector.size();
|
|
}
|
|
|
|
const SFileInfo* CFileSystemGCWii::FindFileInfo(const char* _rFullPath)
|
|
{
|
|
if (!m_Initialized)
|
|
InitFileSystem();
|
|
|
|
for (size_t i = 0; i < m_FileInfoVector.size(); i++)
|
|
{
|
|
if (!strcasecmp(m_FileInfoVector[i].m_FullPath, _rFullPath))
|
|
return &m_FileInfoVector[i];
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
bool CFileSystemGCWii::DetectFileSystem()
|
|
{
|
|
if (Read32(0x18) == 0x5D1C9EA3)
|
|
{
|
|
m_OffsetShift = 2; // Wii file system
|
|
return true;
|
|
}
|
|
else if (Read32(0x1c) == 0xC2339F3D)
|
|
{
|
|
m_OffsetShift = 0; // GC file system
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
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(), NULL, NameTableOffset);
|
|
}
|
|
}
|
|
|
|
// 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;
|
|
}
|
|
|
|
} // namespace
|