Re: [x11drv] d3d stencil support

[Oliver Stieber]

--- "Adam D. Moss"  wrote:
> Hi!
>
> Oliver Stieber wrote:
> > - if (visual == NULL) {
> > -
> >    /* fallback to a 1 bit stencil (opengl
>
> states that at least 1 bit of stencil must be
> provided for on of the available configurations) */
> > -
> >    WARN("Failed to get a visual with at
>
> least 8 bits of stencil\n");
> > -
> >    int dblBuf2[] =

{GLX_RGBA,GLX_DEPTH_SIZE,16,GLX_STENCIL_SIZE,1,GLX_DOUBLEBUFFER,None};
> > -
> > -
> >    wine_tsx11_lock();
> > -
> >    visual = pglXChooseVisual(display,
>
> DefaultScreen(display), dblBuf2);
> > -
> >    wine_tsx11_unlock();
> > -
> >    if (visual == NULL) {
> > -
> >        /* This should only happen if we
>
> cannot fidn a match with a depth size 16 */
> > -
> >        FIXME("Failed to find a suitable
>
> visual\n");
> > -
> >    }
> > - }
>
> It's always nice to have a fallback, but in real
> life I've
> never seen PC hardware (even back to the 90s) which
> supports
> a 1-bit stencil buffer and not a 8-bit stencil
> buffer, so
> this may be over-redundant.  (Would be interested in
> hearing
> of any consumer hardware which only does a 1-bit
> stencil.)

The fallback is there because 1 bit stencil is the
minimum required by the opengl specification, so it is
possible that somewhere there is a driver that only
supports 1 bit stencil.

Oliver.
> Regards,
> --adam

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