PolygonStipple

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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.
*/
// -*- Mode: c++ -*-
 
#ifndef OSG_POLYGONSTIPPLE
#define OSG_POLYGONSTIPPLE 1
 
#include <osg/StateAttribute>
 
#ifndef GL_POLYGON_STIPPLE
    #define GL_POLYGON_STIPPLE  0x0B42
#endif
 
namespace osg
{
 
class OSG_EXPORT PolygonStipple : public StateAttribute
{
    public :
 
        PolygonStipple();
 
        PolygonStipple(const GLubyte* mask);

        PolygonStipple(const PolygonStipple& lw,const CopyOp& copyop=CopyOp::SHALLOW_COPY);
 
        META_StateAttribute(osg, PolygonStipple, POLYGONSTIPPLE);

        virtual int compare(const StateAttribute& sa) const;
 
        virtual bool getModeUsage(StateAttribute::ModeUsage& usage) const
        {
            usage.usesMode(GL_POLYGON_STIPPLE);
            return true;
        }

        void setMask(const GLubyte* mask);

        inline const GLubyte* getMask() const {return _mask;}
 
 
        virtual void apply(State& state) const;
 
    protected :
 
        virtual ~PolygonStipple();
 
        GLubyte _mask[128];
 
};
 
}
 
#endif