openscenegraph
SampleMaski
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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_SAMPLEMASKI
15#define OSG_SAMPLEMASKI 1
16
17#include <osg/StateAttribute>
18
19namespace osg {
20
21/**
22 * osg::SampleMaski does nothing if OpenGL 3.2 or ARB_texture_multisample are not available.
23*/
24class OSG_EXPORT SampleMaski : public StateAttribute
25{
26 public :
27
28 SampleMaski();
29
30 /** Copy constructor using CopyOp to manage deep vs shallow copy.*/
31 SampleMaski(const SampleMaski& sampleMaski,const CopyOp& copyop=CopyOp::SHALLOW_COPY);
32
33 META_StateAttribute(osg, SampleMaski, SAMPLEMASKI)
34
35 /** return -1 if *this < *rhs, 0 if *this==*rhs, 1 if *this>*rhs.*/
36 virtual int compare(const StateAttribute& sa) const;
37
38 inline void setMask(unsigned int mask, unsigned int maskNumber = 0u ) { _sampleMask[maskNumber] = mask; }
39
40 inline unsigned int getMask(unsigned int maskNumber = 0u) const { return _sampleMask[maskNumber]; }
41
42 virtual void apply(State& state) const;
43
44 protected:
45
46 virtual ~SampleMaski();
47
48//For now support only up to 64 bit mask;
49 unsigned int _sampleMask[2];
50};
51
52}
53
54#endif