openscenegraph
ShadeModel
Go to the documentation of this file.
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_SHADEMODEL
15#define OSG_SHADEMODEL 1
16
17#include <osg/GL>
18#include <osg/StateAttribute>
19
20namespace osg {
21
22#ifndef OSG_GL_FIXED_FUNCTION_AVAILABLE
23 #define GL_FLAT 0x1D00
24 #define GL_SMOOTH 0x1D01
25#endif
26
27/** Class which encapsulates glShadeModel(..).
28*/
29class OSG_EXPORT ShadeModel : public StateAttribute
30{
31 public :
32
33 enum Mode {
34 FLAT = GL_FLAT,
35 SMOOTH = GL_SMOOTH
36 };
37
38 ShadeModel(Mode mode=SMOOTH);
39
40 /** Copy constructor using CopyOp to manage deep vs shallow copy.*/
41 ShadeModel(const ShadeModel& sm,const CopyOp& copyop=CopyOp::SHALLOW_COPY):
42 StateAttribute(sm,copyop),
43 _mode(sm._mode) {}
44
45
46 META_StateAttribute(osg, ShadeModel, SHADEMODEL);
47
48 /** return -1 if *this < *rhs, 0 if *this==*rhs, 1 if *this>*rhs.*/
49 virtual int compare(const StateAttribute& sa) const
50 {
51 // check the types are equal and then create the rhs variable
52 // used by the COMPARE_StateAttribute_Parameter macros below.
53 COMPARE_StateAttribute_Types(ShadeModel,sa)
54
55 // compare each parameter in turn against the rhs.
56 COMPARE_StateAttribute_Parameter(_mode)
57
58 return 0; // passed all the above comparison macros, must be equal.
59 }
60
61 inline void setMode(Mode mode) { _mode = mode; }
62
63 inline Mode getMode() const { return _mode; }
64
65 virtual void apply(State& state) const;
66
67 protected:
68
69 virtual ~ShadeModel();
70
71 Mode _mode;
72
73};
74
75}
76
77#endif