Esempio n. 1
0
        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);
        }