X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fglsl%2Foptimize.h;h=455a2d84a52d1ac82c7b769b3b419e3bab962537;hb=085ebad01690fafedeafe4bfe8421c9588f0238e;hp=c932767e99807325f159372e626895aafa213c5b;hpb=1cd0ea7f79b2b0dedd8a2a6622e5d2e8b2ea2512;p=libs%2Fgl.git

diff --git a/source/glsl/optimize.h b/source/glsl/optimize.h
index c932767e..455a2d84 100644
--- a/source/glsl/optimize.h
+++ b/source/glsl/optimize.h
@@ -165,6 +165,27 @@ private:
 	virtual void visit(Iteration &);
 };
 
+/** Removes types which are not used anywhere. */
+class UnusedTypeRemover: private TraversingVisitor
+{
+private:
+	std::set<Node *> unused_nodes;
+
+public:
+	bool apply(Stage &);
+
+private:
+	virtual void visit(Literal &);
+	virtual void visit(UnaryExpression &);
+	virtual void visit(BinaryExpression &);
+	virtual void visit(FunctionCall &);
+	virtual void visit(BasicTypeDeclaration &);
+	virtual void visit(ImageTypeDeclaration &);
+	virtual void visit(StructDeclaration &);
+	virtual void visit(VariableDeclaration &);
+	virtual void visit(FunctionDeclaration &);
+};
+
 /** Removes variable declarations with no references to them.  Assignment
 statements where the result is not used are also removed. */
 class UnusedVariableRemover: private TraversingVisitor