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

[Ilia Mirkin]

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?

  -ilia