/// <summary>
/// Compares the images into the given result.
/// </summary>
private unsafe void CompareData(ComparisonResult result)
{
sampleData = null;
masterData = BitmapUtils.LockBitmapDataRead(MasterImage);
try
{
sampleData = BitmapUtils.LockBitmapDataRead(SampleImage);
int width = MasterScanLineWidth;
positions = PositionDelta.ForWithinDistance(Criteria.MaxPixelDistance);
maxSquareDistance = (255 * 255 + 255 * 255 + 255 * 255) *
Criteria.MaxColorDistance;
minSquareDistance = (255 * 255 + 255 * 255 + 255 * 255) *
Criteria.MinColorDistance;
int errorCount = 0;
for (int y = 0; y < MasterSize.Height; y++)
{
PixelData *masterPixels = (PixelData *)
((byte *)masterData.Scan0.ToPointer() + y * width);
PixelData *samplePixels = (PixelData *)
((byte *)sampleData.Scan0.ToPointer() + y * width);
for (int x = 0; x < MasterSize.Width; x++)
{
bool match = PixelsEqual(*masterPixels, *samplePixels);
if (!match || minSquareDistance != 0)
{
result.SetIdentical(false);
CheckPixel(x, y, result, ref errorCount);
if (errorCount > MaxErrorCount)
{
result.SetCriteriaMet(false);
return;
}
}
masterPixels++;
samplePixels++;
}
}
}
finally
{
MasterImage.UnlockBits(masterData);
if (sampleData != null)
{
SampleImage.UnlockBits(sampleData);
}
masterData = null;
sampleData = null;
}
}
