Hi, I’m writing to the group looking for help with a performance issue. I’m coding a gallery like application, using the racket/draw library, but the bitmap% class seems to be pretty slow. The (make-bitmap 4000 3000) operation takes more than 4 seconds on my computer (a macbook pro with a 3.1GHz dual core i5 and 16GB ram). What I'd need to do is simply read and resize some jpeg files to display them in a canvas. I could use some external program to resize the photos but I would prefer to work with racket only. The make-platform-bitmap is 20 times faster than the make-bitmap, but I didn’t find a way to draw a jpeg on it. Do you have any suggestion?
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