From Fredric Mammond, added new osg::BlendEquation state attribute wrapping

up glBlendEquation.

src/osg/BlendEquation.cpp

@@ -0,0 +1,35 @@
+/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2003 Robert Osfield 
+ *
+ * This library is open source and may be redistributed and/or modified under  
+ * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or 
+ * (at your option) any later version.  The full license is in LICENSE file
+ * included with this distribution, and on the openscenegraph.org website.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
+ * OpenSceneGraph Public License for more details.
+*/
+#include <osg/BlendEquation>
+
+using namespace osg;
+
+BlendEquation::BlendEquation():
+    _equation(FUNC_ADD_EXT)
+{
+}
+
+BlendEquation::BlendEquation(GLenum equation):
+    _equation(equation)
+{
+}
+
+BlendEquation::~BlendEquation()
+{
+}
+
+void BlendEquation::apply(State&) const
+{
+    glBlendEquation(_equation);
+}
+

src/osg/GNUmakefile

@@ -13,6 +13,7 @@ CXXFILES =\
 	BoundingSphere.cpp\
 	BlendColor.cpp\
 	BlendFunc.cpp\
+	BlendEquation.cpp\
 	ClipNode.cpp\
 	ClipPlane.cpp\
 	ColorMask.cpp\