Mesa (master): glsl: Add method ast_type_qualifier::interpolation_string()
Chad Versace
chadversary at kemper.freedesktop.org
Mon Jan 17 18:21:19 UTC 2011
Module: Mesa
Branch: master
Commit: 0e2f8936c8ef872cb464e54a9f09ae0324487147
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=0e2f8936c8ef872cb464e54a9f09ae0324487147
Author: Chad Versace <chad.versace at intel.com>
Date: Tue Jan 11 16:59:24 2011 -0800
glsl: Add method ast_type_qualifier::interpolation_string()
If an interpolation qualifier is present, then the method returns that
qualifier's string representation. For example, if the noperspective bit
is set, then it returns "noperspective".
---
src/glsl/ast.h | 12 ++++++++++++
src/glsl/ast_type.cpp | 13 +++++++++++++
2 files changed, 25 insertions(+), 0 deletions(-)
diff --git a/src/glsl/ast.h b/src/glsl/ast.h
index cd933cf..c096f9a 100644
--- a/src/glsl/ast.h
+++ b/src/glsl/ast.h
@@ -364,6 +364,18 @@ struct ast_type_qualifier {
* This field is only valid if \c explicit_location is set.
*/
unsigned location;
+
+ /**
+ * \brief Return string representation of interpolation qualifier.
+ *
+ * If an interpolation qualifier is present, then return that qualifier's
+ * string representation. Otherwise, return null. For example, if the
+ * noperspective bit is set, then this returns "noperspective".
+ *
+ * If multiple interpolation qualifiers are somehow present, then the
+ * returned string is undefined but not null.
+ */
+ const char *interpolation_string() const;
};
class ast_struct_specifier : public ast_node {
diff --git a/src/glsl/ast_type.cpp b/src/glsl/ast_type.cpp
index b7488cf..a876161 100644
--- a/src/glsl/ast_type.cpp
+++ b/src/glsl/ast_type.cpp
@@ -116,3 +116,16 @@ ast_fully_specified_type::has_qualifiers() const
{
return this->qualifier.flags.i != 0;
}
+
+const char*
+ast_type_qualifier::interpolation_string() const
+{
+ if (this->flags.q.smooth)
+ return "smooth";
+ else if (this->flags.q.flat)
+ return "flat";
+ else if (this->flags.q.noperspective)
+ return "noperspective";
+ else
+ return NULL;
+}
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