// #############################################################################################
/// Function:<summary>
///
/// </summary>
///
/// In: <param name="_block"></param>
/// Out: <returns>
///
/// </returns>
// #############################################################################################
public int CheckDuplicate(int _block)
{
block_info info = BlockInfo[_block]; // get the block
bool NotSpace = false;
for (int i = 0; i < 6; i++)
{
if (info[i] != -1)
{
NotSpace = true;
break;;
}
}
if (!NotSpace)
{
FreeBlock(_block);
return(1);
}
// Now check the CRC lookup....
BlockCRCLookup.Remove(info.CRC);
// if its NOT a space, compare with all orther blocks
uint crc = info.UpdateCRC();
int newblock = -1;
if (BlockCRCLookup.TryGetValue(crc, out newblock))
{
FreeBlock(_block);
BlockInfo[newblock].Ref++;
return(newblock);
}
BlockCRCLookup.Add(crc, _block);
return(_block);
}
