[SDL] Alpha Blitter

[Jonathan Dearborn]

Hey,
 
I've seen some chatter over this topic before (when I needed this blitter), so I wanted to check if anyone was still looking for this.  Anyhow, here it is.  It's quite crude and just tries to clip the rects and loop through the pixels.  My preliminary speed tests may show that my implementation isn't suited to all projects.  It'll work fine for pretty stuff, but it won't be replacing SDL_BlitSurface() in this state.  The approximate speed test result was 1/2 speed.  If anyone can offer any suggestions, help, or code, that'd be pretty cool.
 
http://www.eggdisk.com/files/99049_5lzpv/blendBlit1.0.zip
(This may not be the best place to host it (no .cpp files)...  Where do you do it?)
 
Be sure to tell me what you think!
 
Jonathan Dearborn
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