u64 FifoDataFile::WriteMemoryUpdates(const std::vector<MemoryUpdate>& memUpdates,
File::IOFile& file)
{
// Add space for memory update list
u64 updateListOffset = file.Tell();
PadFile(memUpdates.size() * sizeof(FileMemoryUpdate), file);
for (unsigned int i = 0; i < memUpdates.size(); ++i)
{
const MemoryUpdate& srcUpdate = memUpdates[i];
// Write memory
file.Seek(0, SEEK_END);
u64 dataOffset = file.Tell();
file.WriteBytes(srcUpdate.data.data(), srcUpdate.data.size());
FileMemoryUpdate dstUpdate;
dstUpdate.address = srcUpdate.address;
dstUpdate.dataOffset = dataOffset;
dstUpdate.dataSize = static_cast<u32>(srcUpdate.data.size());
dstUpdate.fifoPosition = srcUpdate.fifoPosition;
dstUpdate.type = srcUpdate.type;
u64 updateOffset = updateListOffset + (i * sizeof(FileMemoryUpdate));
file.Seek(updateOffset, SEEK_SET);
file.WriteBytes(&dstUpdate, sizeof(FileMemoryUpdate));
}
return updateListOffset;
}
bool IsGCZBlob(File::IOFile& file)
{
const u64 position = file.Tell();
if (!file.Seek(0, SEEK_SET))
return false;
CompressedBlobHeader header;
bool is_gcz = file.ReadArray(&header, 1) && header.magic_cookie == GCZ_MAGIC;
file.Seek(position, SEEK_SET);
return is_gcz;
}
void UpdateStateFlags(std::function<void(StateFlags*)> update_function)
{
const std::string file_path =
Common::GetTitleDataPath(Titles::SYSTEM_MENU, Common::FROM_SESSION_ROOT) + WII_STATE;
File::IOFile file;
StateFlags state;
if (File::Exists(file_path))
{
file.Open(file_path, "r+b");
file.ReadBytes(&state, sizeof(state));
}
else
{
File::CreateFullPath(file_path);
file.Open(file_path, "a+b");
memset(&state, 0, sizeof(state));
}
update_function(&state);
state.UpdateChecksum();
file.Seek(0, SEEK_SET);
file.WriteBytes(&state, sizeof(state));
}
std::unique_ptr<CISOFileReader> CISOFileReader::Create(File::IOFile file)
{
CISOHeader header;
if (file.Seek(0, SEEK_SET) && file.ReadArray(&header, 1) && header.magic == CISO_MAGIC)
return std::unique_ptr<CISOFileReader>(new CISOFileReader(std::move(file)));
return nullptr;
}
void FifoDataFile::ReadMemoryUpdates(u64 fileOffset, u32 numUpdates,
std::vector<MemoryUpdate>& memUpdates, File::IOFile& file)
{
memUpdates.resize(numUpdates);
for (u32 i = 0; i < numUpdates; ++i)
{
u64 updateOffset = fileOffset + (i * sizeof(FileMemoryUpdate));
file.Seek(updateOffset, SEEK_SET);
FileMemoryUpdate srcUpdate;
file.ReadBytes(&srcUpdate, sizeof(FileMemoryUpdate));
MemoryUpdate& dstUpdate = memUpdates[i];
dstUpdate.address = srcUpdate.address;
dstUpdate.fifoPosition = srcUpdate.fifoPosition;
dstUpdate.data.resize(srcUpdate.dataSize);
dstUpdate.type = static_cast<MemoryUpdate::Type>(srcUpdate.type);
file.Seek(srcUpdate.dataOffset, SEEK_SET);
file.ReadBytes(dstUpdate.data.data(), srcUpdate.dataSize);
}
}
void GetNextBlock(File::IOFile& in, u8* buffer)
{
u64 CurrentOffset = m_BlockCount * m_BlockSize;
u64 i = CurrentOffset / CLUSTER_SIZE;
if (m_isScrubbing && m_FreeTable[i])
{
DEBUG_LOG(DISCIO, "Freeing 0x%016" PRIx64, CurrentOffset);
std::fill(buffer, buffer + m_BlockSize, 0xFF);
in.Seek(m_BlockSize, SEEK_CUR);
}
else
{
DEBUG_LOG(DISCIO, "Used 0x%016" PRIx64, CurrentOffset);
in.ReadBytes(buffer, m_BlockSize);
}
m_BlockCount++;
}
size_t GetNextBlock(File::IOFile& in, u8* buffer)
{
u64 CurrentOffset = m_BlockCount * m_BlockSize;
u64 i = CurrentOffset / CLUSTER_SIZE;
size_t ReadBytes = 0;
if (m_isScrubbing && m_FreeTable[i])
{
DEBUG_LOG(DISCIO, "Freeing 0x%016llx", CurrentOffset);
std::fill(buffer, buffer + m_BlockSize, 0xFF);
in.Seek(m_BlockSize, SEEK_CUR);
ReadBytes = m_BlockSize;
}
else
{
DEBUG_LOG(DISCIO, "Used 0x%016llx", CurrentOffset);
in.ReadArray(buffer, m_BlockSize, &ReadBytes);
}
m_BlockCount++;
return ReadBytes;
}
BootExecutableReader::BootExecutableReader(File::IOFile file)
{
file.Seek(0, SEEK_SET);
m_bytes.resize(file.GetSize());
file.ReadBytes(m_bytes.data(), m_bytes.size());
}
bool FifoDataFile::Save(const std::string& filename)
{
File::IOFile file;
if (!file.Open(filename, "wb"))
return false;
// Add space for header
PadFile(sizeof(FileHeader), file);
// Add space for frame list
u64 frameListOffset = file.Tell();
PadFile(m_Frames.size() * sizeof(FileFrameInfo), file);
u64 bpMemOffset = file.Tell();
file.WriteArray(m_BPMem, BP_MEM_SIZE);
u64 cpMemOffset = file.Tell();
file.WriteArray(m_CPMem, CP_MEM_SIZE);
u64 xfMemOffset = file.Tell();
file.WriteArray(m_XFMem, XF_MEM_SIZE);
u64 xfRegsOffset = file.Tell();
file.WriteArray(m_XFRegs, XF_REGS_SIZE);
u64 texMemOffset = file.Tell();
file.WriteArray(m_TexMem, TEX_MEM_SIZE);
// Write header
FileHeader header;
header.fileId = FILE_ID;
header.file_version = VERSION_NUMBER;
header.min_loader_version = MIN_LOADER_VERSION;
header.bpMemOffset = bpMemOffset;
header.bpMemSize = BP_MEM_SIZE;
header.cpMemOffset = cpMemOffset;
header.cpMemSize = CP_MEM_SIZE;
header.xfMemOffset = xfMemOffset;
header.xfMemSize = XF_MEM_SIZE;
header.xfRegsOffset = xfRegsOffset;
header.xfRegsSize = XF_REGS_SIZE;
header.texMemOffset = texMemOffset;
header.texMemSize = TEX_MEM_SIZE;
header.frameListOffset = frameListOffset;
header.frameCount = (u32)m_Frames.size();
header.flags = m_Flags;
file.Seek(0, SEEK_SET);
file.WriteBytes(&header, sizeof(FileHeader));
// Write frames list
for (unsigned int i = 0; i < m_Frames.size(); ++i)
{
const FifoFrameInfo& srcFrame = m_Frames[i];
// Write FIFO data
file.Seek(0, SEEK_END);
u64 dataOffset = file.Tell();
file.WriteBytes(srcFrame.fifoData.data(), srcFrame.fifoData.size());
u64 memoryUpdatesOffset = WriteMemoryUpdates(srcFrame.memoryUpdates, file);
FileFrameInfo dstFrame;
dstFrame.fifoDataSize = static_cast<u32>(srcFrame.fifoData.size());
dstFrame.fifoDataOffset = dataOffset;
dstFrame.fifoStart = srcFrame.fifoStart;
dstFrame.fifoEnd = srcFrame.fifoEnd;
dstFrame.memoryUpdatesOffset = memoryUpdatesOffset;
dstFrame.numMemoryUpdates = static_cast<u32>(srcFrame.memoryUpdates.size());
// Write frame info
u64 frameOffset = frameListOffset + (i * sizeof(FileFrameInfo));
file.Seek(frameOffset, SEEK_SET);
file.WriteBytes(&dstFrame, sizeof(FileFrameInfo));
}
if (!file.Close())
return false;
return true;
}
std::unique_ptr<FifoDataFile> FifoDataFile::Load(const std::string& filename, bool flagsOnly)
{
File::IOFile file;
file.Open(filename, "rb");
if (!file)
return nullptr;
FileHeader header;
file.ReadBytes(&header, sizeof(header));
if (header.fileId != FILE_ID || header.min_loader_version > VERSION_NUMBER)
{
file.Close();
return nullptr;
}
auto dataFile = std::make_unique<FifoDataFile>();
dataFile->m_Flags = header.flags;
dataFile->m_Version = header.file_version;
if (flagsOnly)
{
file.Close();
return dataFile;
}
u32 size = std::min<u32>(BP_MEM_SIZE, header.bpMemSize);
file.Seek(header.bpMemOffset, SEEK_SET);
file.ReadArray(dataFile->m_BPMem, size);
size = std::min<u32>(CP_MEM_SIZE, header.cpMemSize);
file.Seek(header.cpMemOffset, SEEK_SET);
file.ReadArray(dataFile->m_CPMem, size);
size = std::min<u32>(XF_MEM_SIZE, header.xfMemSize);
file.Seek(header.xfMemOffset, SEEK_SET);
file.ReadArray(dataFile->m_XFMem, size);
size = std::min<u32>(XF_REGS_SIZE, header.xfRegsSize);
file.Seek(header.xfRegsOffset, SEEK_SET);
file.ReadArray(dataFile->m_XFRegs, size);
// Texture memory saving was added in version 4.
std::memset(dataFile->m_TexMem, 0, TEX_MEM_SIZE);
if (dataFile->m_Version >= 4)
{
size = std::min<u32>(TEX_MEM_SIZE, header.texMemSize);
file.Seek(header.texMemOffset, SEEK_SET);
file.ReadArray(dataFile->m_TexMem, size);
}
// Read frames
for (u32 i = 0; i < header.frameCount; ++i)
{
u64 frameOffset = header.frameListOffset + (i * sizeof(FileFrameInfo));
file.Seek(frameOffset, SEEK_SET);
FileFrameInfo srcFrame;
file.ReadBytes(&srcFrame, sizeof(FileFrameInfo));
FifoFrameInfo dstFrame;
dstFrame.fifoData.resize(srcFrame.fifoDataSize);
dstFrame.fifoStart = srcFrame.fifoStart;
dstFrame.fifoEnd = srcFrame.fifoEnd;
file.Seek(srcFrame.fifoDataOffset, SEEK_SET);
file.ReadBytes(dstFrame.fifoData.data(), srcFrame.fifoDataSize);
ReadMemoryUpdates(srcFrame.memoryUpdatesOffset, srcFrame.numMemoryUpdates,
dstFrame.memoryUpdates, file);
dataFile->AddFrame(dstFrame);
}
file.Close();
return dataFile;
}
FifoDataFile *FifoDataFile::Load(const std::string &filename, bool flagsOnly)
{
File::IOFile file;
file.Open(filename, "rb");
if (!file)
return nullptr;
FileHeader header;
file.ReadBytes(&header, sizeof(header));
if (header.fileId != FILE_ID || header.min_loader_version > VERSION_NUMBER)
{
file.Close();
return nullptr;
}
FifoDataFile* dataFile = new FifoDataFile;
dataFile->m_Flags = header.flags;
if (flagsOnly)
{
file.Close();
return dataFile;
}
u32 size = std::min((u32)BP_MEM_SIZE, header.bpMemSize);
file.Seek(header.bpMemOffset, SEEK_SET);
file.ReadArray(dataFile->m_BPMem, size);
size = std::min((u32)CP_MEM_SIZE, header.cpMemSize);
file.Seek(header.cpMemOffset, SEEK_SET);
file.ReadArray(dataFile->m_CPMem, size);
size = std::min((u32)XF_MEM_SIZE, header.xfMemSize);
file.Seek(header.xfMemOffset, SEEK_SET);
file.ReadArray(dataFile->m_XFMem, size);
size = std::min((u32)XF_REGS_SIZE, header.xfRegsSize);
file.Seek(header.xfRegsOffset, SEEK_SET);
file.ReadArray(dataFile->m_XFRegs, size);
// Read frames
for (u32 i = 0; i < header.frameCount; ++i)
{
u64 frameOffset = header.frameListOffset + (i * sizeof(FileFrameInfo));
file.Seek(frameOffset, SEEK_SET);
FileFrameInfo srcFrame;
file.ReadBytes(&srcFrame, sizeof(FileFrameInfo));
FifoFrameInfo dstFrame;
dstFrame.fifoData = new u8[srcFrame.fifoDataSize];
dstFrame.fifoDataSize = srcFrame.fifoDataSize;
dstFrame.fifoStart = srcFrame.fifoStart;
dstFrame.fifoEnd = srcFrame.fifoEnd;
file.Seek(srcFrame.fifoDataOffset, SEEK_SET);
file.ReadBytes(dstFrame.fifoData, srcFrame.fifoDataSize);
ReadMemoryUpdates(srcFrame.memoryUpdatesOffset, srcFrame.numMemoryUpdates, dstFrame.memoryUpdates, file);
dataFile->AddFrame(dstFrame);
}
file.Close();
return dataFile;
}