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/* -*-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.
*/
#ifndef OSGUTIL_RENDERLEAF
#define OSGUTIL_RENDERLEAF 1
#include <osg/ref_ptr>
#include <osg/Matrix>
#include <osg/Drawable>
#include <osg/State>
#include <osgUtil/Export>
namespace osgUtil {
#define OSGUTIL_RENDERBACKEND_USE_REF_PTR
// Forward declare StateGraph
class StateGraph;
/** Container class for all data required for rendering of drawables.
*/
class OSGUTIL_EXPORT RenderLeaf : public osg::Referenced
{
public:
inline RenderLeaf(osg::Drawable* drawable,osg::RefMatrix* projection,osg::RefMatrix* modelview, float depth=0.0f, unsigned int traversalNumber=0):
osg::Referenced(false),
_parent(0),
_drawable(drawable),
_projection(projection),
_modelview(modelview),
_depth(depth),
_traversalNumber(traversalNumber)
{
_dynamic = (drawable->getDataVariance()==osg::Object::DYNAMIC);
}
inline void set(osg::Drawable* drawable,osg::RefMatrix* projection,osg::RefMatrix* modelview, float depth=0.0f, unsigned int traversalNumber=0)
{
_parent = 0;
_drawable = drawable;
_projection = projection,
_modelview = modelview,
_depth = depth;
_dynamic = (drawable->getDataVariance()==osg::Object::DYNAMIC);
_traversalNumber = traversalNumber;
}
inline void reset()
{
_parent = 0;
_drawable = 0;
_projection = 0;
_modelview = 0;
_depth = 0.0f;
_dynamic = false;
_traversalNumber = 0;
}
virtual void render(osg::RenderInfo& renderInfo,RenderLeaf* previous);
/// Allow StateGraph to change the RenderLeaf's _parent.
friend class osgUtil::StateGraph;
public:
StateGraph* _parent;
#ifdef OSGUTIL_RENDERBACKEND_USE_REF_PTR
osg::ref_ptr<osg::Drawable> _drawable;
const osg::Drawable* getDrawable() const { return _drawable.get(); }
#else
osg::Drawable* _drawable;
const osg::Drawable* getDrawable() const { return _drawable; }
#endif
osg::ref_ptr<osg::RefMatrix> _projection;
osg::ref_ptr<osg::RefMatrix> _modelview;
float _depth;
bool _dynamic;
unsigned int _traversalNumber;
private:
/// disallow creation of blank RenderLeaf as this isn't useful.
RenderLeaf():
osg::Referenced(false),
_parent(0),
_drawable(0),
_projection(0),
_modelview(0),
_depth(0.0f),
_traversalNumber(0) {}
/// disallow copy construction.
RenderLeaf(const RenderLeaf&):osg::Referenced(false) {}
/// disallow copy operator.
RenderLeaf& operator = (const RenderLeaf&) { return *this; }
};
}
#endif
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