private unsafe void Adjust(Bitmap bitmap, double factor, ApplyToPixel applyToPixel)
{
LockedBitmap lockedBitmap = new LockedBitmap(bitmap);
Parallel.For(0, lockedBitmap.HeightInPixels, iY =>
{
byte *pixel = lockedBitmap.FirstByte + (iY * lockedBitmap.Stride);
for (int iX = 0; iX < lockedBitmap.WidthInBytes; iX += lockedBitmap.BytesPerPixel)
{
applyToPixel(pixel, factor);
pixel += lockedBitmap.BytesPerPixel;
}
});
lockedBitmap.Unlock(bitmap);
}
public Adjustment(ApplyToPixel applyToPixel, double f)
{
adjustment = applyToPixel;
factor = f;
}
public unsafe void Threshold(Bitmap source, int factor)
{
ApplyToPixel adjustment = new ApplyToPixel(ApplyThresholdToPixel);
Adjust(source, factor, adjustment);
}
public unsafe void BlackAndWhite(Bitmap source, int factor)
{
ApplyToPixel adjustment = new ApplyToPixel(ApplyBlackAndWhiteToPixel);
Adjust(source, factor, adjustment);
}
public unsafe void Invert(Bitmap source, int factor)
{
ApplyToPixel adjustment = new ApplyToPixel(ApplyInversionToPixel);
Adjust(source, factor, adjustment);
}
public unsafe void Sepia(Bitmap source, int factor)
{
ApplyToPixel adjustment = new ApplyToPixel(ApplySepiaToPixel);
Adjust(source, factor, adjustment);
}
