One Eyed Jack: I think you might find that doing rotation, with alpha blending, is probably not going to be quite as fast as you might hope for compared to Blitz+ .... The alpha blending itself is kind of expensive and does slow things down. If add filtering in there it's going to get even slower. That said, maybe it's actually pretty fast but it just seems slow due to the DrawPixmap() call which is always slow. Would be interesting to time the loop without the DrawPixmap() or Flip 1.
need to rotate a pixmap with smooth filtering
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