openscenegraph
PolygonStipple
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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// -*- Mode: c++ -*-
14
15#ifndef OSG_POLYGONSTIPPLE
16#define OSG_POLYGONSTIPPLE 1
17
18#include <osg/StateAttribute>
19
20#ifndef GL_POLYGON_STIPPLE
21 #define GL_POLYGON_STIPPLE 0x0B42
22#endif
23
24namespace osg
25{
26
27class OSG_EXPORT PolygonStipple : public StateAttribute
28{
29 public :
30
31 PolygonStipple();
32
33 PolygonStipple(const GLubyte* mask);
34
35 /** Copy constructor using CopyOp to manage deep vs shallow copy.*/
36 PolygonStipple(const PolygonStipple& lw,const CopyOp& copyop=CopyOp::SHALLOW_COPY);
37
38 META_StateAttribute(osg, PolygonStipple, POLYGONSTIPPLE);
39
40 /** return -1 if *this < *rhs, 0 if *this==*rhs, 1 if *this>*rhs.*/
41 virtual int compare(const StateAttribute& sa) const;
42
43 virtual bool getModeUsage(StateAttribute::ModeUsage& usage) const
44 {
45 usage.usesMode(GL_POLYGON_STIPPLE);
46 return true;
47 }
48
49 /** set the mask up, copying 128 bytes (32x32 bitfield) from mask into the local _mask.*/
50 void setMask(const GLubyte* mask);
51
52 /** get a pointer to the mask.*/
53 inline const GLubyte* getMask() const {return _mask;}
54
55
56 virtual void apply(State& state) const;
57
58 protected :
59
60 virtual ~PolygonStipple();
61
62 GLubyte _mask[128];
63
64};
65
66}
67
68#endif