10 Oct
2012
10 Oct
'12
9:23 a.m.
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