Re: [pygame] ARGB vs. RGBA

[Pete Shinners <pete@xxxxxxxxxxxx>]

On Fri, 2006-12-15 at 12:07 +0100, Jakub Piotr CÅapa wrote:
> I was trying to make some data exported from cairo as a ARGB (literally 
> in this byte order on my big-endian machine, A beign in the lowest 
> address) buffer into a PyGame surface but run in to some problems.
> 
> The code which creates the bitmasks required by the SDL conversion 
> routine does some really strange things.
> For RGBA it takes the notation as a literal byte order in memory, low 
> address first and simply swaps the 4 bytes on BE vs. LE.

I'm not sure the problem. Passing the mask arguments when creating
surfaces should allow any byte orderedering.

size = 100, 100
rgba_mask = 0xff000000, 0xff0000, 0xff00, 0xff
rgba_surf = pygame.Surface(size, 0, 32, rgba_masks)

argb_mask = 0xff0000, 0xff00, 0xff, 0xff000000
argb_surf = pygame.Surface(size, 0, 32, argb_masks)