X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fglsl%2Fsyntax.cpp;fp=source%2Fglsl%2Fsyntax.cpp;h=2ab4d1b61a197b3ccee9ea849d60c990e8b2427b;hb=efbce87192ce73ba577684369f759693dccec67c;hp=40f6d4f660b24c84dff02a910951c71c87ad6c4e;hpb=ea844415db7fb7705ecbfea9cf27df2a8f00b802;p=libs%2Fgl.git

diff --git a/source/glsl/syntax.cpp b/source/glsl/syntax.cpp
index 40f6d4f6..2ab4d1b6 100644
--- a/source/glsl/syntax.cpp
+++ b/source/glsl/syntax.cpp
@@ -415,10 +415,27 @@ const TypeDeclaration *get_ultimate_base_type(const TypeDeclaration *type)
 	return type;
 }
 
-int get_layout_value(const Layout &layout, const string &name, int def_value)
+bool has_layout_qualifier(const Layout *layout, const string &name)
 {
-	auto i = find_member(layout.qualifiers, name, &Layout::Qualifier::name);
-	return (i!=layout.qualifiers.end() ? i->value : def_value);
+	if(!layout)
+		return false;
+	auto i = find_member(layout->qualifiers, name, &Layout::Qualifier::name);
+	return i!=layout->qualifiers.end();
+}
+
+int get_layout_value(const Layout *layout, const string &name, int def_value)
+{
+	if(!layout)
+		return def_value;
+	auto i = find_member(layout->qualifiers, name, &Layout::Qualifier::name);
+	return (i!=layout->qualifiers.end() ? i->value : def_value);
+}
+
+void add_layout_qualifier(RefPtr<Layout> &layout, const Layout::Qualifier &q)
+{
+	if(!layout)
+		layout = new Layout;
+	layout->qualifiers.push_back(q);
 }
 
 void add_to_chain(Assignment::Target &target, Assignment::Target::ChainType type, unsigned index)