/// <summary>
/// Opens the PKX extension and reads the file table entries.
/// </summary>
/// <param name="fs">FileStream</param>
/// <param name="br">BinaryReader</param>
/// <param name="algoId">AlgorithmId</param>
private void OpenPkx(FileStream fs, BinaryReader br, uint algoId)
{
// *****NOTE TO SELF******
// This CAN be cleaned up!
using (FileStream f = new FileStream(PkxName, FileMode.Open))
{
using (BinaryReader b = new BinaryReader(f))
{
if (IsVersion23)
{
f.Seek(-16, SeekOrigin.End);
_header23.GuardByte1 = b.ReadUInt32();
f.Seek(-(Marshal.SizeOf(typeof(FileHeaderV23)) + 8), SeekOrigin.End);
_header23.GuardByte0 = b.ReadUInt32();
_header23.Version = b.ReadInt32();
}
else
{
f.Seek(-12, SeekOrigin.End);
_header22.GuardByte1 = b.ReadUInt32();
f.Seek(-(Marshal.SizeOf(typeof(FileHeaderV22)) + 8), SeekOrigin.End);
_header22.GuardByte0 = b.ReadUInt32();
_header22.Version = b.ReadInt32();
}
AlgorithmId id = new AlgorithmId(AutoDetect());
uint offset = b.ReadUInt32() ^ id.PckMaskDword;
if (offset <= TwoGb)
{
if (IsVersion23)
{
fs.Seek(-16, SeekOrigin.End);
_header23.GuardByte1 = br.ReadUInt64() >> 0x20;
fs.Seek(-(Marshal.SizeOf(typeof(FileHeaderV23)) + 8), SeekOrigin.End);
_header23.GuardByte0 = br.ReadUInt32();
_header23.Version = br.ReadInt32();
}
else
{
fs.Seek(-12, SeekOrigin.End);
_header22.GuardByte1 = br.ReadUInt32();
fs.Seek(-(Marshal.SizeOf(typeof(FileHeaderV22)) + 8), SeekOrigin.End);
_header22.GuardByte0 = br.ReadUInt32();
_header22.Version = br.ReadInt32();
}
id = new AlgorithmId(AutoDetect());
uint code = br.ReadUInt32() ^ id.PckMaskDword;
fs.Seek(code, SeekOrigin.Begin);
}
else
{
long pos = Convert.ToInt64(offset) - TwoGb;
f.Seek(pos, SeekOrigin.Begin);
offset -= TwoGb;
}
FileTable = new TableEntry[EntryCount];
for (int i = 0; i < EntryCount; i++)
{
uint size = b.ReadUInt32() ^ id.PckMaskDword;
size = b.ReadUInt32() ^ id.PckMaskDword ^ id.PckCheckMask;
byte[] buffer = b.ReadBytes((int)size);
FileTable[i] = new TableEntry();
int flags = size < 0x114 ? 1 : 0;
FileTable[i] = FileTable[i].ReadTableEntry(buffer, (int)offset, Version, flags != 0);
FileTable[i].FilePath = FileTable[i].FilePath.Replace("/", "\\");
}
// Sort array by data offset.
FileTable = FileTable.OrderBy(x => x.DataOffset).ToArray();
}
}
}
// Open Methods
#region Open Methods
/// <summary>
/// Open PCK less than 0x7FFFFF00 in size.
/// </summary>
/// <param name="fs">FileStream</param>
/// <param name="br">BinaryReader</param>
/// <param name="algoId">AlgorithmId</param>
/// <returns>Returns -1 on error.</returns>
private int OpenPck(FileStream fs, BinaryReader br, uint algoId)
{
if (IsSwordsman)
{
IsPck = true;
IsPkx = false;
}
else
{
switch (Version)
{
case 0x20002:
IsPck = true;
IsPkx = false;
fs.Seek(-12, SeekOrigin.End);
_header22.GuardByte1 = br.ReadUInt32();
fs.Seek(-(Marshal.SizeOf(typeof(FileHeaderV22)) + 8), SeekOrigin.End);
_header22.GuardByte0 = br.ReadUInt32();
_header22.Version = br.ReadInt32();
break;
case 0x20003:
IsPck = true;
IsPkx = false;
fs.Seek(-16, SeekOrigin.End);
_header23.GuardByte1 = (uint)(br.ReadUInt64() >> 0x20);
fs.Seek(-(Marshal.SizeOf(typeof(FileHeaderV23)) + 8), SeekOrigin.End);
_header23.GuardByte0 = br.ReadUInt32();
_header23.Version = br.ReadInt32();
break;
default:
IsPck = false;
IsPkx = false;
return(-1);
}
}
AlgorithmId id = IsSwordsman
? new AlgorithmId(161)
: new AlgorithmId(AutoDetect());
if (IsSwordsman)
{
GameName = IdToGameName(161);
}
ulong offset;
if (IsSwordsman)
{
ulong tmp = _header23s.TableOffset;
offset = tmp ^ 0x49AB7F1D33C3EDDB;
}
else
{
offset = br.ReadUInt32() ^ id.PckMaskDword;
}
if (IsVersion23)
{
_header23.TableOffset = (uint)offset;
}
else
{
_header22.TableOffset = (uint)offset;
}
fs.Seek((long)offset, SeekOrigin.Begin);
FileTable = new TableEntry[EntryCount];
for (int i = 0; i < EntryCount; i++)
{
uint size = br.ReadUInt32() ^ id.PckMaskDword;
size = br.ReadUInt32() ^ id.PckMaskDword ^ id.PckCheckMask;
byte[] buffer = br.ReadBytes((int)size);
FileTable[i] = new TableEntry();
int flags = size < 0x114 ? 1 : 0;
FileTable[i] = FileTable[i].ReadTableEntry(buffer, (int)offset, Version, flags != 0);
FileTable[i].FilePath = FileTable[i].FilePath.Replace("/", "\\");
}
return(0);
}