public uint CompressPacket(byte[] data, ServerOpcodes opcode)
{
byte[] uncompressedData = BitConverter.GetBytes((ushort)opcode).Combine(data);
uint bufferSize = ZLib.deflateBound(_compressionStream, (uint)uncompressedData.Length);
byte[] outPrt = new byte[bufferSize];
_compressionStream.next_out = 0;
_compressionStream.avail_out = bufferSize;
_compressionStream.out_buf = outPrt;
_compressionStream.next_in = 0;
_compressionStream.avail_in = (uint)uncompressedData.Length;
_compressionStream.in_buf = uncompressedData;
int z_res = ZLib.deflate(_compressionStream, 2);
if (z_res != 0)
{
Log.outError(LogFilter.Network, "Can't compress packet data (zlib: deflate) Error code: {0} msg: {1}", z_res, _compressionStream.msg);
return(0);
}
uint compressedSize = bufferSize - _compressionStream.avail_out;
Buffer.BlockCopy(outPrt, 0, data, 0, (int)compressedSize);
return(compressedSize);
}