openscenegraph
PrimitiveRestartIndex
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1/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
2 *
3 * This library is open source and may be redistributed and/or modified under
4 * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
5 * (at your option) any later version. The full license is in LICENSE file
6 * included with this distribution, and on the openscenegraph.org website.
7 *
8 * This library is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * OpenSceneGraph Public License for more details.
12*/
13
14#ifndef OSG_PRIMITIVERESTARTINDEX
15#define OSG_PRIMITIVERESTARTINDEX 1
16
17#include <osg/StateAttribute>
18
19namespace osg {
20
21/**
22 * osg::PrimitiveRestartIndex does nothing if OpenGL 3.1 is not available.
23*/
24class OSG_EXPORT PrimitiveRestartIndex : public StateAttribute
25{
26 public :
27
28 PrimitiveRestartIndex();
29 PrimitiveRestartIndex(unsigned int restartIndex);
30
31 /** Copy constructor using CopyOp to manage deep vs shallow copy.*/
32 PrimitiveRestartIndex(const PrimitiveRestartIndex& primitiveRestartIndex,const CopyOp& copyop=CopyOp::SHALLOW_COPY);
33
34 META_StateAttribute(osg, PrimitiveRestartIndex, PRIMITIVERESTARTINDEX)
35
36 /** return -1 if *this < *rhs, 0 if *this==*rhs, 1 if *this>*rhs.*/
37 virtual int compare(const StateAttribute& sa) const;
38
39 inline void setRestartIndex(unsigned int restartIndex ) { _restartIndex = restartIndex; }
40
41 inline unsigned int getRestartIndex() const { return _restartIndex; }
42
43 virtual void apply(State& state) const;
44
45 protected:
46
47 virtual ~PrimitiveRestartIndex();
48
49 unsigned int _restartIndex;
50};
51
52}
53
54#endif