Tulip  4.8.0
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GlFeedBackRecorder.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
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_GLFEEDBACKRECORDER_H
22 #define Tulip_GLFEEDBACKRECORDER_H
23 
24 #if defined(_MSC_VER)
25 #include <Windows.h>
26 #endif
27 
28 #if defined(__APPLE__)
29 #include <OpenGL/gl.h>
30 #else
31 #include <GL/gl.h>
32 #endif
33 
34 #include <tulip/tulipconf.h>
35 #include <tulip/Vector.h>
36 
37 namespace tlp {
38 
39 class GlFeedBackBuilder;
40 
41 /** \brief Class use to build an object with an OpenGL feedback buffer
42  *
43  * Class use to build an object with an OpenGL feedback buffer
44  * This class call functions of the GlFeedBackBuilder passed to the constructor
45  */
46 class TLP_GL_SCOPE GlFeedBackRecorder {
47 
48 public:
49 
50  /**
51  * Constructor : the recorder use GlFeedBackBuilder : builder
52  */
53  GlFeedBackRecorder(GlFeedBackBuilder *builder,unsigned int pointSize=7);
54  /**
55  * Record a new feedback buffer
56  * \param doSort : sort the feedback buffer
57  * \param size : size of the feedback buffer
58  * \param feedBackBuffer : the feedback buffer
59  * \param viewport : the viewport of the scene
60  */
61  void record(bool doSort, GLint size, GLfloat *feedBackBuffer,const Vector<int,4>& viewport);
62 
63 private:
64 
65  void sortAndRecord(GLint size, GLfloat *feedBackBuffer);
66  void record(GLint size, GLfloat *feedBackBuffer);
67  GLfloat* recordPrimitive(GLfloat *loc);
68 
69  GlFeedBackBuilder *feedBackBuilder;
70  unsigned int pointSize;
71 
72 };
73 
74 }
75 
76 #endif // Tulip_GLFEEDBACKRECORDER_H
77 ///@endcond