glsl: Keep track of centroid/interpolation mode for interface block members.

Fixes piglit tests:
- interface-block-interpolation-{array,named,unnamed}
- glsl-1.50-interface-block-centroid {array,named,unnamed}

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>

1 files changed, 12 insertions, 0 deletions

diff --git a/src/glsl/glsl_types.h b/src/glsl/glsl_types.h
index e60c191..4b5b6ef 100644
--- a/src/glsl/glsl_types.h
+++ b/src/glsl/glsl_types.h
@@ -590,6 +590,18 @@ struct glsl_struct_field {
     * Ignored for structs.
     */
    int location;
+
+   /**
+    * For interface blocks, the interpolation mode (as in
+    * ir_variable::interpolation).  0 otherwise.
+    */
+   unsigned interpolation:2;
+
+   /**
+    * For interface blocks, 1 if this variable uses centroid interpolation (as
+    * in ir_variable::centroid).  0 otherwise.
+    */
+   unsigned centroid:1;
 };
 
 static inline unsigned int