Re: [pygame] Stuck with surfarray

[Jasper Phillips <jasper@peak.org>]

On Mon, 19 Jul 2004, Pete Shinners wrote:
> Having a RGBA array would make this a little easier, but you certainly 
> aren't stuck without it. If you want to swap the complete RGBA, use a 
> "2D" array and the mapped colors.
> 
> def swapRGBA(surf, srcRGBA, dstRGBA):
>     array = pygame.surfarray.array2d(surf)
>     src = surf.map_rgb(srcRGBA)
>     dst = surf.map_rgb(dstRGBA)
>     array = Numeric.where(array == src, dst, array)
>     return pygame.surfarray.make_surface(array)

I hadn't considered that, thanks Pete!

Hmmm, actually I just wanted to swap the RGB, and leave the A intact.  But I
think I can work this out with a more complicated Numeric.where()

-Jasper