Brad Beveridge writes: 

> Hi guys,
> I recently wrote a small line graph plotting app using Lispbuilder,
> SBCL and OS X.  Basically the app draws a little line graph every
> frame that measures some input.  I was pretty astounded to find that
> doing ~200 sdl-gfx-draw-line-* calls was taking about 2.5ms.  
 

Good astounded, or bad astounded? :) 

You probably already know that lispbuilder-sdl contains line drawing 
functions, so there is no real need to pull in sdl_gfx (unless you really 
need the extra speed). 

 - Luke
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