glsl: Add a new ast_type_qualifier::has_auxiliary_storage() method.

"Auxiliary storage qualifiers" is the new term given to "centroid",
"patch", and "sample" by GLSL 4.20/GL_ARB_shading_language_420pack.

Even though we only support "centroid", it's useful to add this now
so that all auxiliary storage qualifiers get handled in the right places
once they're eventually supported.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>

diff --git a/src/glsl/ast.h b/src/glsl/ast.h
index 78d24ae069d41953f3262371fc41d8cad98a2d4f..816d5fccbbc1bbbe59655fdb7420da53e3a29cac 100644 (file)
--- a/src/glsl/ast.h
+++ b/src/glsl/ast.h
@@ -467,6 +467,11 @@ struct ast_type_qualifier {
     */
    bool has_storage() const;
 
+   /**
+    * Return whether an auxiliary storage qualifier is present.
+    */
+   bool has_auxiliary_storage() const;
+
    /**
     * \brief Return string representation of interpolation qualifier.
     *

diff --git a/src/glsl/ast_type.cpp b/src/glsl/ast_type.cpp
index 2e55b76762b9f6d1250f5b857aa35dbedda2d554..4cbb835ee1e339d67d745658e60b3393b33897f2 100644 (file)
--- a/src/glsl/ast_type.cpp
+++ b/src/glsl/ast_type.cpp
@@ -85,6 +85,12 @@ ast_type_qualifier::has_storage() const
           || this->flags.q.uniform;
 }
 
+bool
+ast_type_qualifier::has_auxiliary_storage() const
+{
+   return this->flags.q.centroid;
+}
+
 const char*
 ast_type_qualifier::interpolation_string() const
 {