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 <[email protected]>
Reviewed-by: Ian Romanick <[email protected]>
Reviewed-by: Matt Turner <[email protected]>

1 files changed, 4 insertions, 0 deletions

diff --git a/src/glsl/builtin_variables.cpp b/src/glsl/builtin_variables.cpp
index 1f62fcf9bdd..018daf67fec 100644
--- a/src/glsl/builtin_variables.cpp
+++ b/src/glsl/builtin_variables.cpp
@@ -326,6 +326,8 @@ per_vertex_accumulator::add_field(int slot, const glsl_type *type,
    this->fields[this->num_fields].name = name;
    this->fields[this->num_fields].row_major = false;
    this->fields[this->num_fields].location = slot;
+   this->fields[this->num_fields].interpolation = INTERP_QUALIFIER_NONE;
+   this->fields[this->num_fields].centroid = 0;
    this->num_fields++;
 }
 
@@ -899,6 +901,8 @@ builtin_variable_generator::generate_varyings()
          ir_variable *var =
             add_variable(fields[i].name, fields[i].type, ir_var_shader_out,
                          fields[i].location);
+         var->interpolation = fields[i].interpolation;
+         var->centroid = fields[i].centroid;
          var->init_interface_type(per_vertex_out_type);
       }
    }