> You do not have to use computeIntoP. You can just use computeP followed by
> toForeignPtr (i don't remember the exact name for that and am on my phone
> so it would be awkward to look up). So Repa can create the buffer for you.
> Coincidentally, I didn't realize computeIntoP even existed, and I want it
> for what I'm doing!
I managed to fix my code - thanks! The main function now reads:
main = do
[f] <- getArgs
(RGB v) <- runIL $ readImage f
rotated <- (computeP $ rot180 v) :: IO (Array RFP.F DIM3 Word8)
runIL $ writeImage ("flip-"++f) (RGB rotated)
Jan
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