[Mesa-dev] [PATCH 02/18] mesa: Add {OES, EXT}_tessellation_shader to the extensions table.

[Ilia Mirkin]

I'm looking at these on my phone, so perhaps I missed it - do you ever end
up turning them on, or is that left to  later series?

On Aug 1, 2016 12:30 PM, "Kenneth Graunke" <kenneth at whitecape.org> wrote:

> Also update _mesa_has_tessellation to know about the new extensions.
>
> For now, these are dummy_false, to avoid turning on the extension
> until everything's in place.  Eventually, we'll move them over to
> the "ARB_tessellation_shader" bit so that any drivers supporting
> both the desktop extension and ES 3.1 get the feature.
>
> Signed-off-by: Kenneth Graunke <kenneth at whitecape.org>
> ---
>  src/mesa/main/context.h          | 7 +++++--
>  src/mesa/main/extensions_table.h | 4 ++++
>  2 files changed, 9 insertions(+), 2 deletions(-)
>
> diff --git a/src/mesa/main/context.h b/src/mesa/main/context.h
> index 133b17f..1871388 100644
> --- a/src/mesa/main/context.h
> +++ b/src/mesa/main/context.h
> @@ -354,8 +354,11 @@ _mesa_has_shader_subroutine(const struct gl_context
> *ctx)
>  static inline GLboolean
>  _mesa_has_tessellation(const struct gl_context *ctx)
>  {
> -   return ctx->API == API_OPENGL_CORE &&
> -          ctx->Extensions.ARB_tessellation_shader;
> +   /* _mesa_has_EXT_tessellation_shader(ctx) is redundant with the OES
> +    * check, so don't bother calling it.
> +    */
> +   return _mesa_has_OES_tessellation_shader(ctx) ||
> +          _mesa_has_ARB_tessellation_shader(ctx);
>  }
>
>
> diff --git a/src/mesa/main/extensions_table.h
> b/src/mesa/main/extensions_table.h
> index cbb3fb8..a83d9b7 100644
> --- a/src/mesa/main/extensions_table.h
> +++ b/src/mesa/main/extensions_table.h
> @@ -234,6 +234,8 @@ EXT(EXT_shadow_funcs                        ,
> ARB_shadow
>  EXT(EXT_stencil_two_side                    , EXT_stencil_two_side
>            , GLL,  x ,  x ,  x , 2001)
>  EXT(EXT_stencil_wrap                        , dummy_true
>            , GLL,  x ,  x ,  x , 2002)
>  EXT(EXT_subtexture                          , dummy_true
>            , GLL,  x ,  x ,  x , 1995)
> +EXT(EXT_tessellation_point_size             , dummy_false
>             ,  x ,  x ,  x ,  31, 2013)
> +EXT(EXT_tessellation_shader                 , dummy_false
>             ,  x ,  x ,  x ,  31, 2013)
>  EXT(EXT_texture                             , dummy_true
>            , GLL,  x ,  x ,  x , 1996)
>  EXT(EXT_texture3D                           , dummy_true
>            , GLL,  x ,  x ,  x , 1996)
>  EXT(EXT_texture_array                       , EXT_texture_array
>             , GLL, GLC,  x ,  x , 2006)
> @@ -359,6 +361,8 @@ EXT(OES_stencil4                            ,
> dummy_false
>  EXT(OES_stencil8                            , dummy_true
>            ,  x ,  x , ES1, ES2, 2005)
>  EXT(OES_stencil_wrap                        , dummy_true
>            ,  x ,  x , ES1,  x , 2002)
>  EXT(OES_surfaceless_context                 , dummy_true
>            ,  x ,  x , ES1, ES2, 2012)
> +EXT(OES_tessellation_point_size             , dummy_false
>             ,  x ,  x ,  x ,  31, 2014)
> +EXT(OES_tessellation_shader                 , dummy_false
>             ,  x ,  x ,  x ,  31, 2014)
>  EXT(OES_texture_3D                          , dummy_true
>            ,  x ,  x ,  x , ES2, 2005)
>  EXT(OES_texture_border_clamp                , ARB_texture_border_clamp
>            ,  x ,  x ,  x , ES2, 2014)
>  EXT(OES_texture_buffer                      , OES_texture_buffer
>            ,  x ,  x ,  x ,  31, 2014)
> --
> 2.9.2
>
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> mesa-dev at lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/mesa-dev
>
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