コード例 #1
0
ファイル: VcdiffDecoder.cs プロジェクト: z0rg1nc/MiscUtilFork
        /// <summary>
        /// Reads the custom code table, if there is one
        /// </summary>
        void ReadCodeTable()
        {
            // The length given includes the nearSize and sameSize bytes
            int compressedTableLength = IOHelper.ReadBigEndian7BitEncodedInt(delta) - 2;
            int nearSize = IOHelper.CheckedReadByte(delta);
            int sameSize = IOHelper.CheckedReadByte(delta);

            byte[] compressedTableData = IOHelper.CheckedReadBytes(delta, compressedTableLength);

            byte[] defaultTableData = CodeTable.Default.GetBytes();

            MemoryStream tableOriginal = new MemoryStream(defaultTableData, false);
            MemoryStream tableDelta    = new MemoryStream(compressedTableData, false);

            byte[]       decompressedTableData = new byte[1536];
            MemoryStream tableOutput           = new MemoryStream(decompressedTableData, true);

            VcdiffDecoder.Decode(tableOriginal, tableDelta, tableOutput);

            if (tableOutput.Position != 1536)
            {
                throw new VcdiffFormatException("Compressed code table was incorrect size");
            }

            codeTable = new CodeTable(decompressedTableData);
            cache     = new AddressCache(nearSize, sameSize);
        }
コード例 #2
0
ファイル: VcdiffDecoder.cs プロジェクト: z0rg1nc/MiscUtilFork
        /// <summary>
        /// Reads the custom code table, if there is one
        /// </summary>
        void ReadCodeTable()
        {
            // The length given includes the nearSize and sameSize bytes
            int compressedTableLength = IOHelper.ReadBigEndian7BitEncodedInt(delta)-2;
            int nearSize = IOHelper.CheckedReadByte(delta);
            int sameSize = IOHelper.CheckedReadByte(delta);
            byte[] compressedTableData = IOHelper.CheckedReadBytes(delta, compressedTableLength);

            byte[] defaultTableData = CodeTable.Default.GetBytes();

            MemoryStream tableOriginal = new MemoryStream(defaultTableData, false);
            MemoryStream tableDelta = new MemoryStream(compressedTableData, false);
            byte[] decompressedTableData = new byte[1536];
            MemoryStream tableOutput = new MemoryStream(decompressedTableData, true);
            VcdiffDecoder.Decode(tableOriginal, tableDelta, tableOutput);

            if (tableOutput.Position != 1536)
            {
                throw new VcdiffFormatException("Compressed code table was incorrect size");
            }

            codeTable = new CodeTable(decompressedTableData);
            cache = new AddressCache(nearSize, sameSize);
        }