Added VertexAttribDivisor class to wrap up glVertexAttribDivisor function

git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/trunk@14526 16af8721-9629-0410-8352-f15c8da7e697

src/osg/CMakeLists.txt

@@ -206,6 +206,7 @@ SET(TARGET_H
     ${HEADER_PATH}/Vec4ui
     ${HEADER_PATH}/Vec4us
     ${HEADER_PATH}/Version
+    ${HEADER_PATH}/VertexAttribDivisor
     ${HEADER_PATH}/VertexProgram
     ${HEADER_PATH}/View
     ${HEADER_PATH}/Viewport
@@ -362,6 +363,7 @@ SET(TARGET_SRC
     Uniform.cpp
     UserDataContainer.cpp
     Version.cpp
+    VertexAttribDivisor.cpp
     VertexProgram.cpp
     View.cpp
     Viewport.cpp

src/osg/VertexAttribDivisor.cpp

@@ -0,0 +1,42 @@
+/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 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/VertexAttribDivisor>
+#include <osg/GL2Extensions>
+#include <osg/State>
+
+using namespace osg;
+
+VertexAttribDivisor::VertexAttribDivisor():
+    _index(0),
+    _divisor(0)
+{
+}
+
+VertexAttribDivisor::VertexAttribDivisor(unsigned int index, unsigned int divisor):
+    _index(index),
+    _divisor(divisor)
+{
+}
+
+VertexAttribDivisor::~VertexAttribDivisor()
+{
+}
+
+void VertexAttribDivisor::apply(State& state) const
+{
+    const GL2Extensions* extensions = GL2Extensions::Get(state.getContextID(), true);
+    if (extensions)
+    {
+        extensions->glVertexAttribDivisor( _index, _divisor );
+    }
+}

src/osgWrappers/serializers/osg/VertexAttribDivisor.cpp

@@ -0,0 +1,13 @@
+#include <osg/VertexAttribDivisor>
+#include <osgDB/ObjectWrapper>
+#include <osgDB/InputStream>
+#include <osgDB/OutputStream>
+
+REGISTER_OBJECT_WRAPPER( VertexAttribDivisor,
+                         new osg::VertexAttribDivisor,
+                         osg::VertexAttribDivisor,
+                         "osg::Object osg::StateAttribute osg::VertexAttribDivisor" )
+{
+    ADD_UINT_SERIALIZER( Index, 0 );
+    ADD_UINT_SERIALIZER( Divisor, 0 );
+}