/// <summary>
/// This compress algorithm only works for 8, 16 or 32 bit data types.
/// </summary>
/// <param name="dataType"></param>
/// <returns></returns>
public bool QueryDataTypeSupported(EPT dataType)
{
int nBits = dataType.GetBitCount();
return (nBits == 8 || nBits == 16 || nBits == 32);
}
/// <summary>
/// Creates a new instance of HfaCompress from the data byte, and starts at the data offset.
/// </summary>
public HfaCompress(byte[] data, long dataOffset, int blockSize, EPT dataType)
{
_compressed = false;
_data = data;
_dataOffset = dataOffset;
_dataTypeNumBits = dataType.GetBitCount();
_blockSize = blockSize;
_blockCount = blockSize/(_dataTypeNumBits/8);
// Allocate memory for the count and values, probably too big
// about right for worst case scenario
_counts = new byte[_blockSize + sizeof(UInt32)];
_values = new byte[_blockSize + sizeof(UInt32)];
}
