[ab] lispbuilder-sdl API changes

[Anthony Fairchild]

On 12/13/06, Luke J Crook <luke at balooga.com> wrote:
>
> the current API was quite inefficient. Vectors were being converted to
> and from foreign types and on each call to the CFFI bindings. I noticed
> this when I was trying to speed up pixel access for Anthony (blame
> Anthony for this change ;) )
>

Sure, blame the new guy!   All these changes sound awesome.  Can't
wait to try them out with my game code.

Anthony