Reconstrust Code.

src/osg3DViewer/3rdparty/osgWorks/README.txt

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+from http://code.google.com/p/osgworks/

src/osg3DViewer/3rdparty/osgWorks/osgwTools/CountStateSets.cpp

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+/*************** <auto-copyright.pl BEGIN do not edit this line> **************
+ *
+ * osgWorks is (C) Copyright 2009-2011 by Kenneth Mark Bryden
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation.
+ *
+ * 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 GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ *
+ *************** <auto-copyright.pl END do not edit this line> ***************/
+
+#include "osgwTools/CountStateSets.h"
+#include <osgwTools/StateSetUtils.h>
+#include <osg/NodeVisitor>
+#include <osg/Geode>
+#include <osg/Drawable>
+#include <osg/StateSet>
+#include <osg/StateAttribute>
+#include <osg/Notify>
+
+
+
+namespace osgwTools
+{
+
+
+CountStateSets::CountStateSets( bool removeEmptyStateSets, const osg::NodeVisitor::TraversalMode travMode )
+  : osg::NodeVisitor( travMode ),
+    _removeEmptyStateSets( removeEmptyStateSets ),
+    _uniqueStateSets( 0 ),
+    _sharedStateSets( 0 ),
+    _emptyStateSets( 0 ),
+    _removedStateSets( 0 )
+{
+}
+CountStateSets::~CountStateSets()
+{
+}
+
+void
+CountStateSets::reset()
+{
+    _uniqueStateSets = 0;
+    _sharedStateSets = 0;
+    _emptyStateSets = 0;
+    _removedStateSets = 0;
+}
+
+void
+CountStateSets::setRemoveEmptyStateSets( bool removeEmptyStateSets )
+{
+    _removeEmptyStateSets = removeEmptyStateSets;
+}
+
+
+void
+CountStateSets::apply( osg::Node& node )
+{
+    if( !processStateSet( node.getStateSet() ) && _removeEmptyStateSets )
+    {
+        node.setStateSet( NULL );
+        _removedStateSets++;
+    }
+    traverse( node );
+}
+void
+CountStateSets::apply( osg::Geode& node )
+{
+    if( !processStateSet( node.getStateSet() ) && _removeEmptyStateSets )
+    {
+        node.setStateSet( NULL );
+        _removedStateSets++;
+    }
+
+    unsigned int idx;
+    for( idx=0; idx<node.getNumDrawables(); idx++ )
+    {
+        osg::Drawable* draw = node.getDrawable( idx );
+        if( !processStateSet( draw->getStateSet() ) && _removeEmptyStateSets )
+        {
+            draw->setStateSet( NULL );
+            _removedStateSets++;
+        }
+    }
+
+    traverse( node );
+}
+
+bool
+CountStateSets::processStateSet( osg::StateSet* ss )
+{
+    if( ss == NULL )
+        return( true );
+
+    if( ss->referenceCount() == 1 )
+        _uniqueStateSets++;
+    else
+        _sharedStateSets++;
+
+    bool empty = osgwTools::isEmpty( *ss );
+    if( empty )
+        _emptyStateSets++;
+    return( !empty );
+}
+
+
+
+// osgwTools
+}

src/osg3DViewer/3rdparty/osgWorks/osgwTools/CountStateSets.h

@@ -0,0 +1,84 @@
+/*************** <auto-copyright.pl BEGIN do not edit this line> **************
+ *
+ * osgWorks is (C) Copyright 2009-2011 by Kenneth Mark Bryden
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation.
+ *
+ * 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 GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ *
+ *************** <auto-copyright.pl END do not edit this line> ***************/
+
+#ifndef __OSGWTOOLS_COUNT_STATE_SETS_H__
+#define __OSGWTOOLS_COUNT_STATE_SETS_H__ 1
+
+
+//#include "osgwTools/Export.h"
+#include <osg/NodeVisitor>
+
+#include <string>
+
+#define OSGWTOOLS_EXPORT
+
+namespace osgwTools
+{
+
+
+/** \class CountStateSets CountStateSets.h <osgwTools/CountStateSets.h>
+\brief Visitor to count \c StateSet objects and optionally removes empty \c StateSet objects.
+\deprecated Please use CountsVisitor and RemoveData instead.
+*/
+//
+class OSGWTOOLS_EXPORT CountStateSets : public osg::NodeVisitor
+{
+public:
+    /**
+    @param removeEmptyStateSets The default is true.
+    @param travMode The traversal mode. The default is \c osg::NodeVisitor::TRAVERSE_ALL_CHILDREN.
+    */
+    CountStateSets( bool removeEmptyStateSets=true, const osg::NodeVisitor::TraversalMode travMode=osg::NodeVisitor::TRAVERSE_ALL_CHILDREN );
+    ~CountStateSets();
+
+    /** Sets internal counts to zero. */
+    void reset();
+
+    /** Overrides for base class \c apply() method. */
+    virtual void apply( osg::Node& node );
+    /** Overrides for base class \c apply() method. */
+    virtual void apply( osg::Geode& node );
+
+    /** Specifies whether to remove empty \c StateSet objects. The default is true
+    (remove empty \c StateSet objects).*/
+    void setRemoveEmptyStateSets( bool removeEmptyStateSets );
+
+    /** During traversal, these counters track the total number of programs
+    and the NodeVisitor removes the uniforms. They are public, so the calling code can access
+    them directly following the traversal. */
+    unsigned int _uniqueStateSets, _sharedStateSets, _emptyStateSets, _removedStateSets;
+
+protected:
+    /** This function examines the \c StateSet and increments the unique and shared counters. It also
+    increments the empty counter, but doesn't remove it or increment the removed counter.
+    The calling \c apply() method takes care of this based on the return
+    value. It returns true if the \c StateSet is NULL or not empty and returns false if the
+    \c StateSet is non-NULL and empty. */
+    bool processStateSet( osg::StateSet* ss );
+
+    bool _removeEmptyStateSets;
+};
+
+
+// osgwTools
+}
+
+// __OSGWTOOLS_COUNT_STATE_SETS_H__
+#endif