[racket] [PATCH] Speeding up set-argb-pixels

On 12/17/2012 04:44 AM, Matthew Flatt wrote:
> These changes look good, and I'll push them.
>
> I also tried a larger revision to lift the mode tests out of the loop;
> it's only worth about 10%, but it might set up further improvements.
>
> ...

 From profiling I did a while ago, I found that one of the most 
expensive operations in rendering logos and icons was converting flomaps 
to bitmaps. I'm really interested to see how much this speeds things up.

Neil ⊥