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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 OSG_SHADEMODEL
#define OSG_SHADEMODEL 1
#include <osg/GL>
#include <osg/StateAttribute>
namespace osg {
#ifndef OSG_GL_FIXED_FUNCTION_AVAILABLE
#define GL_FLAT 0x1D00
#define GL_SMOOTH 0x1D01
#endif
/** Class which encapsulates glShadeModel(..).
*/
class OSG_EXPORT ShadeModel : public StateAttribute
{
public :
enum Mode {
FLAT = GL_FLAT,
SMOOTH = GL_SMOOTH
};
ShadeModel(Mode mode=SMOOTH);
/** Copy constructor using CopyOp to manage deep vs shallow copy.*/
ShadeModel(const ShadeModel& sm,const CopyOp& copyop=CopyOp::SHALLOW_COPY):
StateAttribute(sm,copyop),
_mode(sm._mode) {}
META_StateAttribute(osg, ShadeModel, SHADEMODEL);
/** return -1 if *this < *rhs, 0 if *this==*rhs, 1 if *this>*rhs.*/
virtual int compare(const StateAttribute& sa) const
{
// check the types are equal and then create the rhs variable
// used by the COMPARE_StateAttribute_Parameter macros below.
COMPARE_StateAttribute_Types(ShadeModel,sa)
// compare each parameter in turn against the rhs.
COMPARE_StateAttribute_Parameter(_mode)
return 0; // passed all the above comparison macros, must be equal.
}
inline void setMode(Mode mode) { _mode = mode; }
inline Mode getMode() const { return _mode; }
virtual void apply(State& state) const;
protected:
virtual ~ShadeModel();
Mode _mode;
};
}
#endif