openscenegraph
LogicOp
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_LOGICOP
15#define OSG_LOGICOP 1
16
17#include <osg/StateAttribute>
18
19#ifndef OSG_GL_FIXED_FUNCTION_AVAILABLE
20 #define GL_CLEAR 0x1500
21 #define GL_SET 0x150F
22 #define GL_COPY 0x1503
23 #define GL_COPY_INVERTED 0x150C
24 #define GL_NOOP 0x1505
25 #define GL_AND 0x1501
26 #define GL_NAND 0x150E
27 #define GL_OR 0x1507
28 #define GL_NOR 0x1508
29 #define GL_XOR 0x1506
30 #define GL_EQUIV 0x1509
31 #define GL_AND_REVERSE 0x1502
32 #define GL_AND_INVERTED 0x1504
33 #define GL_OR_REVERSE 0x150B
34 #define GL_OR_INVERTED 0x150D
35 #define GL_COLOR_LOGIC_OP 0x0BF2
36#endif
37
38namespace osg {
39
42{
43 public :
44
45 enum Opcode {
46 CLEAR = GL_CLEAR,
47 SET = GL_SET,
48 COPY = GL_COPY,
49 COPY_INVERTED = GL_COPY_INVERTED,
50 NOOP = GL_NOOP,
51 INVERT = GL_INVERT,
52 AND = GL_AND,
53 NAND = GL_NAND,
54 OR = GL_OR,
55 NOR = GL_NOR,
56 XOR = GL_XOR,
57 EQUIV = GL_EQUIV,
58 AND_REVERSE = GL_AND_REVERSE,
59 AND_INVERTED = GL_AND_INVERTED,
60 OR_REVERSE = GL_OR_REVERSE,
61 OR_INVERTED = GL_OR_INVERTED
62 };
63
65
66 LogicOp(Opcode opcode);
67
69 LogicOp(const LogicOp& trans,const CopyOp& copyop=CopyOp::SHALLOW_COPY):
70 StateAttribute(trans,copyop),
71 _opcode(trans._opcode){}
72
74
76 virtual int compare(const StateAttribute& sa) const
77 {
78 // Check for equal types, then create the rhs variable
79 // used by the COMPARE_StateAttribute_Parameter macros below.
81
82 // Compare each parameter in turn against the rhs.
84
85 return 0; // Passed all the above comparison macros, so must be equal.
86 }
87
88 virtual bool getModeUsage(StateAttribute::ModeUsage& usage) const
89 {
91 return true;
92 }
93
94
95 inline void setOpcode(Opcode opcode)
96 {
97 _opcode = opcode;
98 }
99
100 inline Opcode getOpcode() const { return _opcode; }
101
102 virtual void apply(State& state) const;
103
104 protected :
105
106 virtual ~LogicOp();
107
109};
110
111}
112
113#endif
#define GL_SET
Definition LogicOp:21
#define GL_OR
Definition LogicOp:27
#define GL_COLOR_LOGIC_OP
Definition LogicOp:35
#define GL_EQUIV
Definition LogicOp:30
#define GL_AND_REVERSE
Definition LogicOp:31
#define GL_AND_INVERTED
Definition LogicOp:32
#define GL_CLEAR
Definition LogicOp:20
#define GL_NOOP
Definition LogicOp:24
#define GL_COPY_INVERTED
Definition LogicOp:23
#define GL_XOR
Definition LogicOp:29
#define GL_NOR
Definition LogicOp:28
#define GL_OR_REVERSE
Definition LogicOp:33
#define GL_AND
Definition LogicOp:25
#define GL_COPY
Definition LogicOp:22
#define GL_OR_INVERTED
Definition LogicOp:34
#define GL_NAND
Definition LogicOp:26
#define COMPARE_StateAttribute_Parameter(parameter)
Definition StateAttribute:69
#define COMPARE_StateAttribute_Types(TYPE, rhs_attribute)
Definition StateAttribute:57
Definition CopyOp:41
Definition LogicOp:42
Opcode _opcode
Definition LogicOp:108
META_StateAttribute(osg, LogicOp, LOGICOP)
virtual void apply(State &state) const
Opcode
Definition LogicOp:45
LogicOp(const LogicOp &trans, const CopyOp &copyop=CopyOp::SHALLOW_COPY)
Definition LogicOp:69
virtual bool getModeUsage(StateAttribute::ModeUsage &usage) const
Definition LogicOp:88
LogicOp(Opcode opcode)
virtual int compare(const StateAttribute &sa) const
Definition LogicOp:76
void setOpcode(Opcode opcode)
Definition LogicOp:95
Opcode getOpcode() const
Definition LogicOp:100
virtual ~LogicOp()
Definition StateAttribute:77
Definition State:80
author: Julien Valentin 2017 (mp3butcher@hotmail.com)
Definition AlphaFunc:19
#define OSG_EXPORT
Definition osg/Export:39
Definition StateAttribute:308
virtual void usesMode(GLMode mode)=0