root/OpenSceneGraph/trunk/include/osg/PolygonStipple @ 13041

Revision 13041, 1.9 kB (checked in by robert, 3 years ago)

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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
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