Added support for releasing GLObjects, and renamed DisplayListVisitor the

GLObjectVisitor to better fit its function, and added support for releasing objects as well as compiling them.
2004-07-20 05:37:59 +00:00
parent 12a315ec1d
commit aa833acfd3
21 changed files with 214 additions and 73 deletions
--- a/src/osgUtil/GLObjectsVisitor.cpp
+++ b/src/osgUtil/GLObjectsVisitor.cpp
@@ -0,0 +1,93 @@
+/* -*-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 <osgUtil/GLObjectsVisitor>
+#include <osg/Drawable>
+
+using namespace osg;
+using namespace osgUtil;
+
+GLObjectsVisitor::GLObjectsVisitor(Mode mode)
+{
+    setTraversalMode(osg::NodeVisitor::TRAVERSE_ALL_CHILDREN);
+    
+    _mode = mode;
+    
+    _state = NULL;
+}
+
+
+void GLObjectsVisitor::apply(osg::Node& node)
+{
+    if (node.getStateSet())
+    {
+        apply(*(node.getStateSet()));
+    }
+
+    traverse(node);
+}
+
+void GLObjectsVisitor::apply(osg::Geode& node)
+{
+    if (node.getStateSet())
+    {
+        apply(*(node.getStateSet()));
+    }
+
+    for(unsigned int i=0;i<node.getNumDrawables();++i)
+    {
+        Drawable* drawable = node.getDrawable(i);
+        if (drawable)
+        {
+            apply(*drawable);
+            if (drawable->getStateSet())
+            {
+                apply(*(drawable->getStateSet()));
+            }
+        }
+    }
+}
+
+void GLObjectsVisitor::apply(osg::Drawable& drawable)
+{
+    if (_mode&SWITCH_OFF_DISPLAY_LISTS)
+    {
+        drawable.setUseDisplayList(false);
+    }
+
+    if (_mode&SWITCH_ON_DISPLAY_LISTS)
+    {
+        drawable.setUseDisplayList(true);
+    }
+
+    if (_mode&COMPILE_DISPLAY_LISTS && _state.valid())
+    {
+        drawable.compileGLObjects(*_state);
+    }
+
+    if (_mode&RELEASE_DISPLAY_LISTS)
+    {
+        drawable.releaseGLObjects(_state.get());
+    }
+}
+
+void GLObjectsVisitor::apply(osg::StateSet& stateset)
+{
+    if (_mode&COMPILE_STATE_ATTRIBUTES && _state.valid())
+    {
+        stateset.compileGLObjects(*_state);
+    }
+    if (_mode&RELEASE_STATE_ATTRIBUTES)
+    {
+        stateset.releaseGLObjects(_state.get());
+    }
+}