public void CalculateDifference(byte[] current, byte[] previous, long length)
{
// Reset
diffBits.Clear();
int index;
diffLength = 0;
int count = 0;
// Calculate differences
for (int i = 0; i < signature.Length; i++)
{
index = signature[i];
if (current[index] != previous[index])
{
diffBits.Add(true);
difference[diffLength] = current[index];
diffLength++;
count = i;
}
else
{
diffBits.Add(false);
}
}
// Reduce diff bit count to eliminate final matching bytes.
diffBits.BitCount = count + 1;
}