Restructed the osgPresentation and present3D directories back to the structure that was present in OSG-3.2

git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/trunk@14759 16af8721-9629-0410-8352-f15c8da7e697

src/osgPresentation/CompileSlideCallback.cpp

@@ -0,0 +1,48 @@
+/* -*-c++-*- Present3D - Copyright (C) 1999-2006 Robert Osfield
+ *
+ * This software is open source and may be redistributed and/or modified under
+ * the terms of the GNU General Public License (GPL) version 2.0.
+ * The full license is in LICENSE.txt file included with this distribution,.
+ *
+ * This software 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
+ * include LICENSE.txt for more details.
+*/
+
+#include <osgPresentation/CompileSlideCallback>
+
+#include <osgUtil/GLObjectsVisitor>
+
+using namespace osgPresentation;
+
+void CompileSlideCallback::operator()(const osg::Camera & camera) const
+{
+    osg::GraphicsContext* context = const_cast<osg::GraphicsContext*>(camera.getGraphicsContext());
+    if (!context) return;
+
+    osg::State* state = context->getState();
+    if (!state) return;
+
+    const osg::FrameStamp* fs = state->getFrameStamp();
+    if (!fs) return;
+
+    if (_needCompile)
+    {
+        _frameNumber = fs->getFrameNumber();
+        _needCompile = false;
+    }
+
+    if (_frameNumber!=fs->getFrameNumber()) return;
+
+    osgUtil::GLObjectsVisitor globjVisitor(osgUtil::GLObjectsVisitor::COMPILE_DISPLAY_LISTS|
+                                  osgUtil::GLObjectsVisitor::COMPILE_STATE_ATTRIBUTES);
+
+    globjVisitor.setTraversalMode(osg::NodeVisitor::TRAVERSE_ALL_CHILDREN);
+
+    globjVisitor.setNodeMaskOverride(0xffffffff);
+
+    globjVisitor.setState(state);
+
+    _sceneToCompile->accept(globjVisitor);
+}