Re: [Sdl4fp-users] Converting images (SDL_DISPLAYFORMAT)

[Daniel F M. <dmo...@ar...>]

On Mon, 2006-03-27 at 03:22 +0200, Matthias wrote:
> Hi there,
>  
> got a problem.
>  
> I load a common 24 bit bitmap graphic file to an image (SDL_LOADBMP)
> then the surface should have surface^.format.bitsperpixel of 24 but
> instead I got 32, why?

The BMP loader sometimes align every pixel to doublewords (converting 24
to 32 bits). You don't have more colors and it's more expensive in
memory, but operations are faster for 32 bit pixels instead of 24.

	Daniel

-- 
"Why program by hand in five days what you can spend five years of your
life automating."
            -- Terrence Parr, ANTLR author