Theocacao Comment for "Convert an NSImage to CIImage"

Comment on "Convert an NSImage to CIImage"
by Qwerty Denzel — Nov 14

Here's slightly shorter:

NSData *tiffData = [image TIFFRepresentation];
CIImage *ciImage = [CIImage imageWithData:tiffData];

CGRect cgRect = [ciImage extent];
NSRect nsRect = NSMakeRect(cgRect.origin.x,\
             cgRect.origin.y, cgRect.size.width, cgRect.size.height);

if ([self isFlipped]) {
  CGAffineTransform transform;
  transform = CGAffineTransformMakeTranslation(0.0,cgRect.size.height);
  transform = CGAffineTransformScale(transform, 1.0, -1.0);
  ciImage = [ciImage imageByApplyingTransform:transform];
}

[ciImage drawAtPoint:NSZeroPoint fromRect:nsRect
              operation:NSCompositeSourceOver fraction:1.0];

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