public EncodingHandler(BinaryReader stream, ProgressReportSlave worker)
{
worker?.ReportProgress(0, "Loading \"encoding\"...");
stream.Skip(2); // EN
byte b1 = stream.ReadByte();
byte checksumSizeA = stream.ReadByte();
byte checksumSizeB = stream.ReadByte();
ushort flagsA = stream.ReadUInt16();
ushort flagsB = stream.ReadUInt16();
int numEntriesA = stream.ReadInt32BE();
int numEntriesB = stream.ReadInt32BE();
byte b4 = stream.ReadByte();
int stringBlockSize = stream.ReadInt32BE();
stream.Skip(stringBlockSize);
//string[] strings = Encoding.ASCII.GetString(stream.ReadBytes(stringBlockSize)).Split(new[] { '\0' }, StringSplitOptions.RemoveEmptyEntries);
stream.Skip(numEntriesA * 32);
//for (int i = 0; i < numEntriesA; ++i)
//{
// byte[] firstHash = stream.ReadBytes(16);
// byte[] blockHash = stream.ReadBytes(16);
//}
long chunkStart = stream.BaseStream.Position;
for (int i = 0; i < numEntriesA; ++i)
{
ushort keysCount;
while ((keysCount = stream.ReadUInt16()) != 0)
{
int fileSize = stream.ReadInt32BE();
MD5Hash md5 = stream.Read <MD5Hash>();
EncodingEntry entry = new EncodingEntry {
Size = fileSize
};
// how do we handle multiple keys?
for (int ki = 0; ki < keysCount; ++ki)
{
MD5Hash key = stream.Read <MD5Hash>();
// use first key for now
if (ki == 0)
{
entry.Key = key;
}
else
{
// todo: log spam
//Debugger.Log(0, "CASC", $"Multiple encoding keys for MD5 {md5.ToHexString()}: {key.ToHexString()}\r\n");
}
}
_encodingData.Add(md5, entry);
}
// each chunk is 4096 bytes, and zero padding at the end
long remaining = ChunkSize - (stream.BaseStream.Position - chunkStart) % ChunkSize;
if (remaining > 0)
{
stream.BaseStream.Position += remaining;
}
worker?.ReportProgress((int)((i + 1) / (float)numEntriesA * 100));
}
stream.Skip(numEntriesB * 32);
long chunkStart2 = stream.BaseStream.Position;
for (int i = 0; i < numEntriesB; ++i)
{
byte[] key = stream.ReadBytes(16);
int stringIndex = stream.ReadInt32BE();
byte unk1 = stream.ReadByte();
int fileSize = stream.ReadInt32BE();
// each chunk is 4096 bytes, and zero padding at the end
long remaining = ChunkSize - (stream.BaseStream.Position - chunkStart2) % ChunkSize;
if (remaining > 0)
{
stream.BaseStream.Position += remaining;
}
}
// string block till the end of file
}
public bool GetEntry(MD5Hash md5, out EncodingEntry enc)
{
return(_encodingData.TryGetValue(md5, out enc));
}
