[SDL] 32bpp->16bpp handling opinions

[Chris Thielen]

hey sdl crowd,
	i'm going to be adding a very simple gui to a SDL project i'm working
on. the entire game is software rendered, and i'm concerned that if i
use the alpha channel in the gui, SDL will be making 32bpp->16
conversions (and blending?) every time i blit to the 16bpp display.
	how would most people handle this? try and not use the alpha channel at
all? thanks for any advice ahead of time.

-- chris (chris at luethy.net)