Tulip  4.4.0
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GlFeedBackBuilder.h
1 /*
2  *
3  * This file is part of Tulip (www.tulip-software.org)
4  *
5  * Authors: David Auber and the Tulip development Team
6  * from LaBRI, University of Bordeaux 1 and Inria Bordeaux - Sud Ouest
7  *
8  * Tulip is free software; you can redistribute it and/or modify
9  * it under the terms of the GNU Lesser General Public License
10  * as published by the Free Software Foundation, either version 3
11  * of the License, or (at your option) any later version.
12  *
13  * Tulip is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
16  * See the GNU General Public License for more details.
17  *
18  */
19 ///@cond DOXYGEN_HIDDEN
20 
21 #ifndef Tulip_GLFEEDBACKBUILDER_H
22 #define Tulip_GLFEEDBACKBUILDER_H
23 
24 #if defined(_MSC_VER)
25 #include <Windows.h>
26 #endif
27 
28 #if defined(__APPLE__)
29 #include <OpenGL/gl.h>
30 #include <OpenGL/glu.h>
31 #else
32 #include <GL/gl.h>
33 #include <GL/glu.h>
34 #endif
35 
36 #include <tulip/tulipconf.h>
37 #include <tulip/Vector.h>
38 
39 namespace tlp {
40 
41 //====================================================
42 typedef struct _FeedBack3Dcolor {
43  GLfloat x;
44  GLfloat y;
45  GLfloat z;
46  GLfloat red;
47  GLfloat green;
48  GLfloat blue;
49  GLfloat alpha;
50 } Feedback3Dcolor;
51 
52 //====================================================
53 typedef struct _DepthIndex {
54  GLfloat *ptr;
55  GLfloat depth;
56 } DepthIndex;
57 
58 //====================================================
59 /**
60  * Abstract class used to build a object with a OpenGl feedback buffer
61  */
62 class TLP_GL_SCOPE GlFeedBackBuilder {
63 
64 public:
65 
66  virtual ~GlFeedBackBuilder() {}
67 
68  virtual void begin(const Vector<int, 4> &) {}
69  virtual void passThroughToken(GLfloat*) {}
70  virtual void pointToken(GLfloat*) {}
71  virtual void lineToken(GLfloat*) {}
72  virtual void lineResetToken(GLfloat*) {}
73  virtual void polygonToken(GLfloat*) {}
74  virtual void bitmapToken(GLfloat*) {}
75  virtual void drawPixelToken(GLfloat*) {}
76  virtual void copyPixelToken(GLfloat*) {}
77  virtual void end() {}
78 
79  virtual void getResult(std::string* str) = 0;
80 
81 };
82 
83 }
84 
85 #endif // Tulip_GLFEEDBACKBUILDER_H
86 ///@endcond