X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fglsl%2Foptimize.cpp;h=f4626f3dfde4a30b91658d5e981b458fad9ab7c5;hb=eee19f5d5bbf16895fca44090d6491d5c9b504f5;hp=0af24e3e8f88df55e0d449e0044f6007fafe0275;hpb=0c07531f8ec779edde9ebe765b3cd79a6960b838;p=libs%2Fgl.git

diff --git a/source/glsl/optimize.cpp b/source/glsl/optimize.cpp
index 0af24e3e..f4626f3d 100644
--- a/source/glsl/optimize.cpp
+++ b/source/glsl/optimize.cpp
@@ -622,6 +622,45 @@ UnusedVariableRemover::VariableInfo::VariableInfo():
 { }
 
 
+bool UnusedTypeRemover::apply(Stage &stage)
+{
+	stage.content.visit(*this);
+	NodeRemover().apply(stage, unused_nodes);
+	return !unused_nodes.empty();
+}
+
+void UnusedTypeRemover::visit(BasicTypeDeclaration &type)
+{
+	if(type.base_type)
+		unused_nodes.erase(type.base_type);
+	unused_nodes.insert(&type);
+}
+
+void UnusedTypeRemover::visit(ImageTypeDeclaration &type)
+{
+	if(type.base_type)
+		unused_nodes.erase(type.base_type);
+	unused_nodes.insert(&type);
+}
+
+void UnusedTypeRemover::visit(StructDeclaration &strct)
+{
+	unused_nodes.insert(&strct);
+	TraversingVisitor::visit(strct);
+}
+
+void UnusedTypeRemover::visit(VariableDeclaration &var)
+{
+	unused_nodes.erase(var.type_declaration);
+}
+
+void UnusedTypeRemover::visit(FunctionDeclaration &func)
+{
+	unused_nodes.erase(func.return_type_declaration);
+	TraversingVisitor::visit(func);
+}
+
+
 UnusedVariableRemover::UnusedVariableRemover():
 	aggregate(0),
 	r_assignment(0),
@@ -678,7 +717,8 @@ void UnusedVariableRemover::visit(InterfaceBlockReference &iface)
 
 void UnusedVariableRemover::visit(MemberAccess &memacc)
 {
-	r_assign_to_subfield = true;
+	if(assignment_target)
+		r_assign_to_subfield = true;
 	TraversingVisitor::visit(memacc);
 	unused_nodes.erase(memacc.declaration);
 }
@@ -759,7 +799,6 @@ void UnusedVariableRemover::visit(ExpressionStatement &expr)
 void UnusedVariableRemover::visit(StructDeclaration &strct)
 {
 	SetForScope<Node *> set(aggregate, &strct);
-	unused_nodes.insert(&strct);
 	TraversingVisitor::visit(strct);
 }
 
@@ -773,7 +812,6 @@ void UnusedVariableRemover::visit(VariableDeclaration &var)
 		if(var.init_expression)
 			record_assignment(var, *var.init_expression, false);
 	}
-	unused_nodes.erase(var.type_declaration);
 	TraversingVisitor::visit(var);
 }