[Mesa-dev] [PATCH] mesa: enable tessellation on GL 4.0 and above

[Timothy Arceri]

On Sun, 2015-12-06 at 22:07 -0500, Ilia Mirkin wrote:
> On Sun, Dec 6, 2015 at 10:05 PM, Timothy Arceri
> <timothy.arceri at collabora.com> wrote:
> > ---
> >  src/mesa/main/context.h | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/src/mesa/main/context.h b/src/mesa/main/context.h
> > index 8b64f45..f3d42cb 100644
> > --- a/src/mesa/main/context.h
> > +++ b/src/mesa/main/context.h
> > @@ -361,7 +361,7 @@ static inline GLboolean
> >  _mesa_has_tessellation(const struct gl_context *ctx)
> >  {
> >     return ctx->API == API_OPENGL_CORE &&
> > -          ctx->Extensions.ARB_tessellation_shader;
> > +          (ctx->Version >= 40 || ctx
> > ->Extensions.ARB_tessellation_shader);
> 
> Under what circumstances would this matter? If you're faking a GL
> version, probably better not to pass in unexpected shader types to
> the
> driver, no?
> 

Well the GL CTS expects to access glPatchParameter* or else it won't
run any tests for 4.0 or above. 

Is there any difference in passing the driver unexpected shader types
verse unexpected shader language/features?



>   -ilia
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