So, I'm trying to fully understand this. I finally figure out how to get shaders working under DirectX with the ALLEGRO_PROGRAMMABLE_PIPELINE flag. This is what I'm currently using:

ALLEGRO_DIRECT3D | ALLEGRO_RESIZABLE | ALLEGRO_PROGRAMMABLE_PIPELINE

I can enable compile and use shaders with DirectX. So now I'm working on my next example where I have a white bitmap, and I color then at runtime using a random color. But now, they are all just white. If I remove ALLEGRO_PROGRAMMABLE_PIPELINE, then they color as expected. Now I read in the docs that Allegro drawing routines don't work when ALLEGRO_PROGRAMMABLE_PIPELINE is enabled? What does this mean, I can draw the sprites, fonts, etc., just cannot seem to apply color.

So in this case, how would I go about drawing this white bitmap with different colors at runtime when ALLEGRO_PROGRAMMABLE_PIPELINE is enabled? Do I really have to make a shader just for this? I'm new to shaders, thoughts, ideas? Much appreciated.

Thanks