/// <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);
}
/// <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);
}
