[AD] Component ordering and mixing color depths

[Robert Jr Ohannessian <rohannessian@xxxxxxxxxx>]

Hi,

In my current program, I am using 32-bit RGBA sprites that I am drawing 
on a 16-bpp bitmap. However, the RGB ordering is different in between 
the 16-bpp and 32-bpp bitmaps, causing the incorrect colors to show up 
(I am not using the Allegro blenders).

Writting two versions of the blending function (to work with RGBA <-> 
RGB and RGBA <-> BGR, or BGRA <-> RGB and BGRA <-> RGB) is not a viable 
option.

Should Allegro set up the component shifts in such a way that the RGBA 
components are in the same order for all color depths? Is there a good 
reason why this is not so?

I am ready to write a patch if necessary.


--
- Robert Jr Ohannessian
http://bob.allegronetwork.com/
The peer will come and reset your connection. RUN WHILE YOU STILL CAN!