public static Locations[] Read_Locations(Stream s)
{
helper help = new helper();
Locations l = new Locations();
Locations[] result = new Locations[Header.LocationCount];
uint[] index = new uint[Header.LocationCount];
ulong[] offset = new ulong[Header.LocationCount];
uint pos = 0;
byte[] block = ReturnBlock(s, l.SizeOf);
for (uint i = 0; i < Header.LocationCount; i++)
{
offset[i] = help.ReadBits(block, pos, Header.LocationBitCount);
pos += Header.LocationBitCount;
index[i] = i;
}
Array.Sort(offset, index);
for (uint i = 0; i < Header.LocationCount; i++)
{
result[i] = new Locations();
result[i].index = index[i];
result[i].offset = offset[i];
}
return(result);
}
public byte[] DecompressChunk(Stream fs, int offset, int rev)
{
//CPK_MAX_DECOMP_BUFFER_SIZE = 0x10000
helper help = new helper();
fs.Seek(offset, 0);
uint DecompressedSize, Flag, CompressedSize;
if (rev == 0)
{
DecompressedSize = help.ReadU16(fs);
Flag = help.ReadU16(fs);
CompressedSize = help.ReadU16(fs);
}
else
{
DecompressedSize = help.ReverseUInt16(help.ReadU16(fs));
Flag = help.ReverseUInt16(help.ReadU16(fs));
CompressedSize = help.ReverseUInt16(help.ReadU16(fs));
}
byte[] buff = new byte[CompressedSize];
fs.Read(buff, 0, (int)CompressedSize);
byte[] tmp = { };
try
{
tmp = DecompressZlib(buff);
}
catch
{
tmp = buff;
}
return(tmp);
}
public static FileName[] Read_FileName(Stream s)
{
helper help = new helper();
FileName[] result = new FileName[Header.FileCount];
for (int i = 0; i < Header.FileCount; i++)
{
FileName fn = new FileName();
if (Header.MagicNumber.ToString("X8").Equals("A1B2C3D4"))
{
fn.offset = help.ReadU32(s);
}
if (Header.MagicNumber.ToString("X8").Equals("D4C3B2A1"))
{
fn.offset = help.ReverseUInt32(help.ReadU32(s));
}
result[i] = fn;
}
long pos = s.Position;
for (int i = 0; i < Header.FileCount; i++)
{
s.Seek(pos + result[i].offset, 0);
result[i].filename = help.ReadString(s);
result[i].fileHash = help.GetFileHash(result[i].filename);
}
return(result);
}
public DecompressedSectorToCompressedSector()
{
helper help = new helper();
SizeOf = help.GetHighestBit(Header.CompSectorCount) * (((uint)Header.DecompressedFileSize + (uint)Header.CompSectorSize - 1) / (uint)Header.CompSectorSize);
SizeOf += 7;
SizeOf /= 8;
}
public static CompressedSectorToDecompressedOffset[] Read_CompressedSectorToDecompressedOffset(Stream s)
{
helper help = new helper();
CompressedSectorToDecompressedOffset c = new CompressedSectorToDecompressedOffset();
uint pos = 0;
byte[] block = ReturnBlock(s, c.SizeOf);
CompressedSectorToDecompressedOffset[] result = new CompressedSectorToDecompressedOffset[Header.CompSectorCount];
for (uint i = 0; i < Header.CompSectorCount; i++)
{
result[i] = new CompressedSectorToDecompressedOffset();
result[i].SectorIndex = i;
result[i].DecompressedOffset = help.ReadBits(block, pos, Header.LocationBitCount);
pos += Header.LocationBitCount;
}
return(result);
}
public static Dictionary <uint, CompressedSectorChunk> ReadSectors(Stream s)
{
helper help = new helper();
CompressedSectorChunk csc = new CompressedSectorChunk();
uint ChunkNumber = 0;
ulong doffset = 0;
s.Seek(Header.FirstSectorPosition, 0);
Dictionary <uint, CompressedSectorChunk> result = new Dictionary <uint, CompressedSectorChunk>();
if (Header.MagicNumber.ToString("X8").Equals("A1B2C3D4"))
{
help.ReadU16(s); help.ReadU16(s); s.Seek(help.ReadU16(s), SeekOrigin.Current);
}
if (Header.MagicNumber.ToString("X8").Equals("D4C3B2A1"))
{
help.ReverseUInt16(help.ReadU16(s)); help.ReverseUInt16(help.ReadU16(s)); s.Seek(help.ReverseUInt16(help.ReadU16(s)), SeekOrigin.Current);
}
for (uint sector = 0; sector <= Header.CompSectorCount; sector++)
{
uint SectorStartPosition = Header.FirstSectorPosition + sector * Header.CompSectorSize;
uint NextSectorPosition = SectorStartPosition + Header.CompSectorSize;
s.Seek(SectorStartPosition, 0);
while (s.Position + 0xf < NextSectorPosition)
{
csc = new CompressedSectorChunk();
csc.position = (uint)s.Position;
ushort Size = help.ReadU16(s);
ushort flag = help.ReadU16(s);
ushort CompChunkSize = help.ReadU16(s);
csc.nr = ChunkNumber;
csc.CompChunkSize = CompChunkSize;
csc.DecompChunkSize = Size;
csc.flag = flag;
csc.CompSector = sector;
doffset += Size;
csc.StartDecompOffset = doffset - Size;
result.Add(ChunkNumber, csc);
ChunkNumber++;
s.Seek(CompChunkSize, SeekOrigin.Current);
}
}
return(result);
}
public static DecompressedSectorToCompressedSector[] Read_DecompressedSectorToCompressedSector(Stream s)
{
helper help = new helper();
uint temp = help.GetHighestBit(Header.CompSectorCount);
DecompressedSectorToCompressedSector d = new DecompressedSectorToCompressedSector();
uint sector = (((uint)Header.DecompressedFileSize + (uint)Header.CompSectorSize - 1) / (uint)Header.CompSectorSize);
uint pos = 0;
byte[] block = ReturnBlock(s, d.SizeOf);
DecompressedSectorToCompressedSector[] result = new DecompressedSectorToCompressedSector[sector];
for (uint i = 0; i < sector; i++)
{
result[i] = new DecompressedSectorToCompressedSector();
result[i].DecompressedSector = i;
result[i].CompressedSector = help.ReadBits(block, pos, temp);
pos += temp;
}
return(result);
}
public HeaderStruct(Stream s, int rev)
{
s.Seek(0, SeekOrigin.End);
FileSize = (uint)s.Position;
helper help = new helper();
s.Seek(0, 0);
MagicNumber = help.ReadU32(s);
PackageVersion = help.RUInt32(s, rev);
DecompressedFileSize = help.RUInt64(s, rev);
Flags = help.RUInt32(s, rev);
FileCount = help.RUInt32(s, rev);
LocationCount = help.RUInt32(s, rev);
HeaderSector = help.RUInt32(s, rev);
FileSizeBitCount = help.RUInt32(s, rev);
FileLocationCountBitCount = help.RUInt32(s, rev);
FileLocationIndexBitCount = help.RUInt32(s, rev);
LocationBitCount = help.RUInt32(s, rev);
CompSectorToDecomOffsetBitCount = help.RUInt32(s, rev);
DecompSectorToCompSectorBitCount = help.RUInt32(s, rev);
CRC = help.RUInt32(s, rev);
if (PackageVersion == 6)
{
Unknown = help.ReadU32(s);
ReadSectorSize = 0x10000;
CompSectorSize = 0x4000;
HeaderSize = 64;
}
if (PackageVersion == 7)
{
ReadSectorSize = (uint)help.RInt32(s, rev);
CompSectorSize = (uint)help.RInt32(s, rev);
HeaderSize = 72;
}
CompSectorCount = ((uint)CompSectorSize + FileSize - 1 - (uint)ReadSectorSize * HeaderSector) / (uint)CompSectorSize;
FirstSectorPosition = (uint)(ReadSectorSize * HeaderSector) & 0xFFFF0000;
if ((FirstSectorPosition % ReadSectorSize) != 0)
{
FirstSectorPosition += ReadSectorSize;
}
}
static void Main(string[] args)
{
string path = "";
if (args.Length == 0)
{
path = "D:\\Common.cpk";
}
else
{
path = args[0];
}
helper help = new helper();
FileStream fs = new FileStream(path, FileMode.Open, FileAccess.Read);
fs.Seek(0, 0);
rev = cpk.IsByteReverse(fs);
HeaderStruct = cpk.HeaderStruct.ReadHeader(fs, rev);
SortedFileInfo = cpk.SortedFileInfo.Read_SortedFileInfo(fs);
Locations = cpk.Locations.Read_Locations(fs);
CompressedSectorToDecompressedOffset = cpk.CompressedSectorToDecompressedOffset.Read_CompressedSectorToDecompressedOffset(fs);
DecompressedSectorToCompressedSector = cpk.DecompressedSectorToCompressedSector.Read_DecompressedSectorToCompressedSector(fs);
FileName = cpk.FileName.Read_FileName(fs);
DictCompressedSectorChunk = cpk.CompressedSectorChunk.ReadSectors(fs);
CompressedSectorChunk = cpk.CompressedSectorChunk.Read_CompressedSectorChunk(DictCompressedSectorChunk);
WriteHeader();
for (int idx = 0; idx < Locations.Length; idx++)
{
int i = (int)Locations[idx].index;
int a = GetLocationIndex(i);
WriteFileInfo(a);
WriteLocations((idx));
WriteFileName(a);
}
fs.Close();
Console.ReadKey();
}
public static SortedFileInfo[] Read_SortedFileInfo(Stream s)
{
SortedFileInfo[] result = new SortedFileInfo[Header.FileCount];
helper help = new helper();
SortedFileInfo sfi = new SortedFileInfo();
s.Position = HeaderSize;
byte[] Htable = ReturnBlock(s, sfi.SizeOf);
uint position = 0;
for (uint i = 0; i < Header.FileCount; i++)
{
result[i] = new SortedFileInfo();
result[i].dwHash = help.ReadBits(Htable, position, 64);
position += 64;
result[i].nSize = (uint)help.ReadBits(Htable, position, Header.FileSizeBitCount);
position += Header.FileSizeBitCount;
result[i].nLocationCount = (uint)help.ReadBits(Htable, position, Header.FileLocationCountBitCount);
position += Header.FileLocationCountBitCount;
result[i].nLocationIndex = (uint)help.ReadBits(Htable, position, Header.FileLocationIndexBitCount);
position += Header.FileLocationIndexBitCount;
}
return(result);
}
public static byte[] GetChunck(FileStream s, int i, int rev)
{
helper help = new helper();
return(help.DecompressChunk(s, (int)CompressedSectorChunk[i].position, rev));
}
