// initialize from existing CPK
public CpkBuilder(DuplicatableStream stream, Endianness endian = Endianness.BigEndian)
{
// should start with CPK and some unknown header bytes
long cpkHeaderOffset = stream.Position;
uint cpkMagic = stream.ReadUInt32(Endianness.LittleEndian);
if (cpkMagic != 0x204B5043)
{
throw new Exception("wrong CPK magic");
}
UnknownCpkHeaderBytes = stream.ReadBytes(12);
// main UTF table should follow
MainUtfTable = new UtfBuilder(stream, endian);
if (MainUtfTable.Rows.Count != 1)
{
throw new Exception("wrong rowcount in main UTF table");
}
UnknownPostCpkHeaderBytes = stream.ReadBytes(4);
while (stream.ReadByte() == 0)
{
;
}
stream.Position = stream.Position - 1;
CopyrightText = stream.ReadBytes(stream.Position.Align(0x800, cpkHeaderOffset) - stream.Position); // or something
ulong tocOffset = (ulong)MainUtfTable.Rows[0].Cells[MainUtfTable.FindColumnIndex("TocOffset")].Data;
//ulong tocSize = (ulong)MainUtfTable.Rows[0].Cells[MainUtfTable.FindColumnIndex("TocSize")].Data;
if (tocOffset != 0)
{
stream.Position = cpkHeaderOffset + (long)tocOffset;
uint magic = stream.ReadUInt32(Endianness.LittleEndian);
if (magic != 0x20434F54)
{
throw new Exception("wrong TOC magic");
}
UnknownTocHeaderBytes = stream.ReadBytes(12);
TocUtfTable = new UtfBuilder(stream, endian);
}
ulong itocOffset = (ulong)MainUtfTable.Rows[0].Cells[MainUtfTable.FindColumnIndex("ItocOffset")].Data;
//ulong itocSize = (ulong)MainUtfTable.Rows[0].Cells[MainUtfTable.FindColumnIndex("ItocSize")].Data;
if (itocOffset != 0)
{
stream.Position = cpkHeaderOffset + (long)itocOffset;
uint magic = stream.ReadUInt32(Endianness.LittleEndian);
if (magic != 0x434F5449)
{
throw new Exception("wrong ITOC magic");
}
UnknownItocHeaderBytes = stream.ReadBytes(12);
ItocUtfTable = new UtfBuilder(stream, endian);
}
ulong etocOffset = (ulong)MainUtfTable.Rows[0].Cells[MainUtfTable.FindColumnIndex("EtocOffset")].Data;
//ulong etocSize = (ulong)MainUtfTable.Rows[0].Cells[MainUtfTable.FindColumnIndex("EtocSize")].Data;
if (etocOffset != 0)
{
stream.Position = cpkHeaderOffset + (long)etocOffset;
uint magic = stream.ReadUInt32(Endianness.LittleEndian);
if (magic != 0x434F5445)
{
throw new Exception("wrong ETOC magic");
}
UnknownEtocHeaderBytes = stream.ReadBytes(12);
EtocUtfTable = new UtfBuilder(stream, endian);
}
ulong gtocOffset = (ulong)MainUtfTable.Rows[0].Cells[MainUtfTable.FindColumnIndex("GtocOffset")].Data;
//ulong gtocSize = (ulong)MainUtfTable.Rows[0].Cells[MainUtfTable.FindColumnIndex("GtocSize")].Data;
if (gtocOffset != 0)
{
// haven't actually seen this, but would make sense...
stream.Position = cpkHeaderOffset + (long)gtocOffset;
uint magic = stream.ReadUInt32(Endianness.LittleEndian);
if (magic != 0x434F5447)
{
throw new Exception("wrong GTOC magic");
}
UnknownGtocHeaderBytes = stream.ReadBytes(12);
GtocUtfTable = new UtfBuilder(stream, endian);
}
ulong contentOffset = (ulong)MainUtfTable.Rows[0].Cells[MainUtfTable.FindColumnIndex("ContentOffset")].Data;
//ulong contentSize = (ulong)MainUtfTable.Rows[0].Cells[MainUtfTable.FindColumnIndex("ContentSize")].Data;
uint fileCount = (uint)MainUtfTable.Rows[0].Cells[MainUtfTable.FindColumnIndex("Files")].Data;
if (TocUtfTable == null || TocUtfTable.Rows.Count != fileCount)
{
throw new Exception("invalid TOC?");
}
Files = new List <CpkFile>((int)fileCount);
int columnDirName = TocUtfTable.FindColumnIndex("DirName");
int columnFileName = TocUtfTable.FindColumnIndex("FileName");
int columnFileSize = TocUtfTable.FindColumnIndex("FileSize");
int columnExtractSize = TocUtfTable.FindColumnIndex("ExtractSize");
int columnFileOffset = TocUtfTable.FindColumnIndex("FileOffset");
int columnFileIndexId = TocUtfTable.FindColumnIndex("ID");
long baseFileOffset = cpkHeaderOffset + ((contentOffset < tocOffset) ? (long)contentOffset : (long)tocOffset);
for (int i = 0; i < (int)fileCount; ++i)
{
var f = new CpkFile();
f.Directory = (string)TocUtfTable.Rows[i].Cells[columnDirName].Data;
f.Name = (string)TocUtfTable.Rows[i].Cells[columnFileName].Data;
uint fileSize = (uint)TocUtfTable.Rows[i].Cells[columnFileSize].Data;
f.DecompressedSize = (uint)TocUtfTable.Rows[i].Cells[columnExtractSize].Data;
ulong fileOffset = (ulong)TocUtfTable.Rows[i].Cells[columnFileOffset].Data;
f.FileStream = new HyoutaUtils.Streams.PartialStream(stream, baseFileOffset + (long)fileOffset, fileSize);
f.ID = (uint)TocUtfTable.Rows[i].Cells[columnFileIndexId].Data;
Files.Add(f);
}
return;
}