X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Fprogrambuilder.h;h=69170e02ef979f543b16f1fc53ef0c9adbc0c2d1;hp=821907d5dba46a281323c3364e1b85095426296e;hb=d542522823423f9ed2a5d412de9250ee8367334b;hpb=cb2281586d0202dfe2c8c181afc9cbf1d250cf25

diff --git a/source/programbuilder.h b/source/programbuilder.h
index 821907d5..69170e02 100644
--- a/source/programbuilder.h
+++ b/source/programbuilder.h
@@ -54,6 +54,15 @@ private:
 		FRAGMENT
 	};
 
+	enum InterfaceFlags
+	{
+		NO_INTERFACE = 0,
+		INPUT = 1,
+		OUTPUT = 2,
+		PASSTHROUGH = INPUT|OUTPUT,
+		GOAL = 4
+	};
+
 	struct VariableDefinition
 	{
 		VariableScope scope;
@@ -84,6 +93,7 @@ private:
 		void update_reference(ShaderVariable &, ShaderVariable &);
 		void check_inline(bool, bool);
 		bool is_referenced_from(VariableScope) const;
+		InterfaceFlags get_interface_flags(VariableScope) const;
 		std::string create_declaration(char = 0) const;
 		std::string create_replacement(VariableScope) const;
 		std::string create_expression() const;
@@ -102,6 +112,7 @@ private:
 	bool optimize;
 
 	static const VariableDefinition standard_variables[];
+	static const char interfaces[];
 
 public:
 	ProgramBuilder(const StandardFeatures &);