mesa: Add {OES,EXT}_tessellation_shader to the extensions table.

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@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

1 files changed, 5 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);
 }