[Mesa-dev] [PATCH] st/mesa: avoid exposing EXT_texture_integer for pre-GLSL 1.30

[Ilia Mirkin]

For drivers building up to GL(ES)3, only expose the actual extension if
the API will let it be used (e.g. via overrides/debug flags that enable
higher versions).

Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu>
---

Technically this can also be used with EXT_gpu_shader4 and NV_gpu_shader4,
neither of which mesa supports or has any plans to. [Hm, curious how this will
play along with MESA_glsl130 or whatever.]

 src/mesa/state_tracker/st_extensions.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/mesa/state_tracker/st_extensions.c b/src/mesa/state_tracker/st_extensions.c
index bdfab8b..20a6845 100644
--- a/src/mesa/state_tracker/st_extensions.c
+++ b/src/mesa/state_tracker/st_extensions.c
@@ -696,6 +696,9 @@ void st_init_extensions(struct pipe_screen *screen,
 
          extensions->EXT_shader_integer_mix = GL_TRUE;
       }
+
+      /* Integer textures make no sense before GLSL 1.30 */
+      extensions->EXT_texture_integer = GL_FALSE;
    }
 
    consts->UniformBooleanTrue = consts->NativeIntegers ? ~0 : fui(1.0f);
-- 
2.0.4