[1/10] WineD3D: Store the number of aux buffers in the context

[Stefan Dösinger]

Am Dienstag, 8. April 2008 20:04:30 schrieb Roderick Colenbrander:
> > > Detecting the number of aux buffers is trivial and can be done using
> > > the fake GL context as it is a WGL pixel format property.
> >
> > Not quite: What if a card supports AUX buffers with the R5G6B5
> > equivalent, but
> > not with A8R8G8B8? Of course I could try to create the fake format with
> > aux
> > buffers enabled, but who tells me if the number of aux buffers is going
> > to work with the format the application wants later?
>
> As I said before aux buffers are a WGL pixel format property. The pixel
> format selection code needs to take care of it. Right now it already tries
> to locate a format with aux buffers but it isn't failproof yet
Sure. The fact that it *may* depend on the other settings of the pixel format 
means I can't generally say "this GL implementation supports aux buffers" - I 
have to decide on that per created GL context and drawable. That's why I have 
the flag in the context and not the GL info structure