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Thread: Compilation Error While compiling with Third party API

  1. 14th February 2012, 16:03 #1
    sajis997
    sajis997 is offline Intermediate user
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    Default Compilation Error While compiling with Third party API

    Hello forum,

    I am trying to create UI for a third party API - H3D and while doing
    it i am getting the following error:

    Qt Code: 
    1. 0-Source/HAPI/include -I/usr/X11R6/include -I. -I. -o H3DGLCanvas.o
    2. H3DGLCanvas.cpp
    3. In file included from /usr/local/include/H3D/H3DDisplayListObject.h:32,
    4.                 from /usr/local/include/H3D/X3DAppearanceNode.h:33,
    5.                 from /usr/local/include/H3D/Appearance.h:32,
    6.                 from /usr/local/include/H3D/DefaultAppearance.h:33,
    7.                 from /usr/local/include/H3D/H3DWindowNode.h:35,
    8.                 from MyH3DCanvasWindow.h:4,
    9.                 from H3DGLCanvas.cpp:3:
    10. /usr/include/GL/glew.h:84:2: error: #error gl.h included before glew.h
    11. /usr/include/GL/glew.h:87:2: error: #error glext.h included before glew.h
    12. In file included from /usr/local/include/H3D/H3DDisplayListObject.h:32,
    13.                 from /usr/local/include/H3D/X3DAppearanceNode.h:33,
    14.                 from /usr/local/include/H3D/Appearance.h:32,
    15.                 from /usr/local/include/H3D/DefaultAppearance.h:33,
    16.                 from /usr/local/include/H3D/H3DWindowNode.h:35,
    17.                 from MyH3DCanvasWindow.h:4,
    18.                 from H3DGLCanvas.cpp:3:
    19. /usr/include/GL/glew.h:8422: error: conflicting declaration ‘typedef
    20. void (* PFNGLFRAGMENTLIGHTMODELFVSGIXPROC)(GLenum, GLfloat*)’
    21. /usr/include/GL/glext.h:5570: error:
    22. ‘PFNGLFRAGMENTLIGHTMODELFVSGIXPROC’ has a previous declaration as
    23. ‘typedef void (* PFNGLFRAGMENTLIGHTMODELFVSGIXPROC)(GLenum, const
    24. GLfloat*)’
    25. /usr/include/GL/glew.h:8424: error: conflicting declaration ‘typedef
    26. void (* PFNGLFRAGMENTLIGHTMODELIVSGIXPROC)(GLenum, GLint*)’
    27. /usr/include/GL/glext.h:5572: error:
    28. ‘PFNGLFRAGMENTLIGHTMODELIVSGIXPROC’ has a previous declaration as
    29. ‘typedef void (* PFNGLFRAGMENTLIGHTMODELIVSGIXPROC)(GLenum, const
    30. GLint*)’
    31. /usr/include/GL/glew.h:8426: error: conflicting declaration ‘typedef
    32. void (* PFNGLFRAGMENTLIGHTFVSGIXPROC)(GLenum, GLenum, GLfloat*)’
    33. /usr/include/GL/glext.h:5566: error: ‘PFNGLFRAGMENTLIGHTFVSGIXPROC’
    34. has a previous declaration as ‘typedef void (*
    35. PFNGLFRAGMENTLIGHTFVSGIXPROC)(GLenum, GLenum, const GLfloat*)’
    36. /usr/include/GL/glew.h:8428: error: conflicting declaration ‘typedef
    37. void (* PFNGLFRAGMENTLIGHTIVSGIXPROC)(GLenum, GLenum, GLint*)’
    38. /usr/include/GL/glext.h:5568: error: ‘PFNGLFRAGMENTLIGHTIVSGIXPROC’
    39. has a previous declaration as ‘typedef void (*
    40. PFNGLFRAGMENTLIGHTIVSGIXPROC)(GLenum, GLenum, const GLint*)’
    41. /usr/include/GL/glew.h:8435: error: conflicting declaration ‘typedef
    42. void (* PFNGLGETFRAGMENTMATERIALFVSGIXPROC)(GLenum, GLenum, const
    43. GLfloat*)’
    44. /usr/include/GL/glext.h:5579: error:
    45. ‘PFNGLGETFRAGMENTMATERIALFVSGIXPROC’ has a previous declaration as
    46. ‘typedef void (* PFNGLGETFRAGMENTMATERIALFVSGIXPROC)(GLenum, GLenum,
    47. GLfloat*)’
    48. /usr/include/GL/glew.h:8436: error: conflicting declaration ‘typedef
    49. void (* PFNGLGETFRAGMENTMATERIALIVSGIXPROC)(GLenum, GLenum, const
    50. GLint*)’
    51. /usr/include/GL/glext.h:5580: error:
    52. ‘PFNGLGETFRAGMENTMATERIALIVSGIXPROC’ has a previous declaration as
    53. ‘typedef void (* PFNGLGETFRAGMENTMATERIALIVSGIXPROC)(GLenum, GLenum,
    54. GLint*)’
    55. /usr/include/GL/glew.h:9866: error:
    56. ‘PFNGLGETPIXELTRANSFORMPARAMETERFVEXTPROC’ does not name a type
    57. /usr/include/GL/glew.h:9867: error:
    58. ‘PFNGLGETPIXELTRANSFORMPARAMETERIVEXTPROC’ does not name a type
    59. H3DGLCanvas.cpp:8: warning: unused parameter ‘attribute_list’
    60. H3DGLCanvas.cpp:17: warning: unused parameter ‘attribute_list’
    61. H3DGLCanvas.cpp:34: warning: unused parameter ‘width’
    62. H3DGLCanvas.cpp:34: warning: unused parameter ‘height’
    63. make: *** [H3DGLCanvas.o] Error 1
    64. sajjad@sajjad:~/Documents/X3D/H3DViewer$
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    I have sub-classed the QGLWidget which contains the reference to the
    another class that is the subclass of the third party class. It may be
    clashing with the glew initialization.


    The following snippet shows the sub-classed qglwidget
    Qt Code: 
    1. #ifndef H3DGLCANVAS_H
    2. #define H3DGLCANVAS_H
    3.  
    4. #include <QGLWidget>
    5. class MyH3DCanvasWindow;
    7.  
    8. //this class is similar to the subclass of wxGLCanvas
    9. class H3DGLCanvas :public QGLWidget
    10. {
    11.     Q_OBJECT
    12. public:
    13.     H3DGLCanvas(MyH3DCanvasWindow *owner,
    14.                 QGLContext *shared_context,
    15.                 int *attribute_list = 0,
    16.                 QWidget *defaultParent = 0);
    17.  
    18.     H3DGLCanvas(MyH3DCanvasWindow *owner,
    19.                 int *attribute_list = 0,
    20.                 QWidget *defaultParent = 0);
    21.     ~H3DGLCanvas();
    22.  
    23.     /*!
    24.       \sa sets up the opengl rendering context,defines the display list. gets called once before the first time resizeGL() or paintGL() is called.
    25.       */
    26.     void initializeGL();
    27.  
    28.     /*!
    29.       \sa sets up the opengl viewport,projection. gets called whenever the widgets gets resized.
    30.       */
    31.     void resizeGL(int width, int height);
    32.     /*!
    33.       \sa renders the opengl scene . gets called wehnever the widget needs to be updated
    34.       */
    35.     void paintGL();
    36.  
    37. protected:
    38.  
    39.     MyH3DCanvasWindow *m_owner;
    40.  
    41. };
    42.  
    43.  
    44. #endif // H3DGLCANVAS_H
    45. ............................................................
    46.  
    47. #include "H3DGLCanvas.h"
    48.  
    49. #include "MyH3DCanvasWindow.h"
    50.  
    51. H3DGLCanvas::H3DGLCanvas(MyH3DCanvasWindow *owner,
    52.             QGLContext *shared_context,
    53.             int *attribute_list,
    54.             QWidget *defaultParent)
    55.                 : QGLWidget(shared_context,defaultParent),
    56.                 m_owner(owner)
    57. {
    58.  
    59. }
    60.  
    61. H3DGLCanvas::H3DGLCanvas(MyH3DCanvasWindow *owner,
    62.             int *attribute_list,
    63.             QWidget *parent)
    64.                 :QGLWidget(parent),
    65.                 m_owner(owner)
    66. {
    67.  
    68. }
    69.  
    70. H3DGLCanvas::~H3DGLCanvas()
    71. {
    72.  
    73. }
    74.  
    75. void H3DGLCanvas::initializeGL()
    76. {
    77.  
    78. }
    79.  
    80. void H3DGLCanvas::resizeGL(int width, int height)
    81. {
    82.  
    83. }
    84.  
    85. void H3DGLCanvas::paintGL()
    86. {
    87.  
    88. }
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    And i have another class that is the subclass of the API's class. Here is goes:

    Qt Code: 
    1. #include "MyH3DCanvasWindow.h"
    2.  
    3. #include <QGLFormat>
    4. #include <vector>
    5.  
    6. #include <H3D/Viewpoint.h>
    7. #include <H3D/INIFile.h>
    8.  
    9.  
    10. #include "H3DGLCanvas.h"
    11.  
    12. //first of add the node to the H3DNodeDatabase system
    13. H3DNodeDatabase MyH3DCanvasWindow::database("MyH3DCanvasWindow",
    14.                                             &(newInstance<MyH3DCanvasWindow>),
    15.                                             typeid(MyH3DCanvasWindow),
    16.                                             &(H3D::H3DWindowNode::database));
    17.  
    18.  
    19. MyH3DCanvasWindow::MyH3DCanvasWindow(QMainWindow *parent ,
    20.                   H3D::Inst<SFInt32> _width ,
    21.                   H3D::Inst<SFInt32> _height,
    22.                   H3D::Inst<SFBool> _fullScreen ,
    23.                   H3D::Inst<SFBool> _mirrored,
    24.                   H3D::Inst<RenderMode> _renderMode,
    25.                   H3D::Inst<SFViewpoint> _viewpoint,
    26.                   H3D::Inst<SFInt32> _posX,
    27.                   H3D::Inst<SFInt32> _posY,
    28.                   H3D::Inst<SFBool> _manualCursorControl,
    29.                   H3D::Inst<SFString> _cursorType)
    30.                       : H3DWindowNode(_width,_height,_fullScreen,_mirrored,
    31.                                       _renderMode,_viewpoint,_posX,_posY,_manualCursorControl,
    32.                                       _cursorType),
    33.                       m_parent(parent),
    34.                       m_isInitialized(false),
    35.                       m_useH3DSettings(true),
    36.                       m_glCanvas(0)
    37.  
    38. {
    39.     database.initFields(this);
    40.  
    41.     m_haveParent = m_parent != NULL;
    42.  
    43.  
    44.     vector<string> valid_values;
    45.     getSupportedCursorsTypes(valid_values);
    46.  
    47.     cursorType->addValidValues(valid_values.begin(),valid_values.end());
    48.  
    49.     //THE FOLLOWING WILL NOT BE HAPENING HERE WHICH HAS BEEN HANDLED IN wxWidget
    50.     //SO COMMENT IT OUT!!!
    51. //    if(!m_parent)
    52. //    {
    53. //        m_parent = new QMainWindow();
    54. //    }
    55. }
    56.  
    57. MyH3DCanvasWindow::~MyH3DCanvasWindow()
    58. {
    59.  
    60. }
    61.  
    62.  
    63. void MyH3DCanvasWindow::swapBuffers()
    64. {
    65.     RenderMode::Mode stereo_mode = renderMode->getRenderMode();
    66.  
    67.     int attributeList[8];
    68.  
    69.     //initialize the opengl format
    70. //    QGLFormat glformat;
    71.  
    72.     attributeList[0] = QGL::Rgba;
    73.     attributeList[1] = QGL::DoubleBuffer;
    74.     attributeList[2] =  QGLFormat::depthBufferSize();//glformat.depthBufferSize();
    75.     attributeList[3] = 24;
    76.     attributeList[4] = QGLFormat::stencilBufferSize();//glformat.stencilBufferSize();
    77.     attributeList[5] = 8;
    78.  
    79.     if(stereo_mode == RenderMode::QUAD_BUFFERED_STEREO)
    80.     {
    81.         attributeList[6] = QGL::StereoBuffers;
    82.     }
    83.  
    84.     attributeList[7] = 0;
    85. }
    86.  
    87. void MyH3DCanvasWindow::initWindow()
    88. {
    89.  
    90. }
    91.  
    92. void MyH3DCanvasWindow::initWindowHandler()
    93. {
    94.  
    95. }
    96.  
    97. void MyH3DCanvasWindow::setFullscreen(bool fullscreen)
    98. {
    99.  
    100. }
    101.  
    102. void MyH3DCanvasWindow::makeWindowActive()
    103. {
    104.  
    105. }
    106.  
    107.  
    108.  
    109. int MyH3DCanvasWindow::setCursorType(const std::string &cursor_type)
    110. {
    111.  
    112. }
    113.  
    114. /// Return the cursor type to use for given modes. This should
    115. /// be implemented for each subclass to choose appropriate cursors.
    116. /// The standard modes are:
    117. /// "DEFAULT" - normal mode
    118. /// "ON_SENSOR_OVER" - when mouse pointer is over a pointing device
    119. /// sensor.
    120. /// "ON_SENSOR_ACTIVE" - when a sensor node is active
    121. /// "ON_NAV_LOOKAT" - when lookat mode is chosen
    122. string MyH3DCanvasWindow::getCursorForMode(const string &)
    123. {
    124.  
    125. }
    126.  
    127. void MyH3DCanvasWindow::getSupportedCursorsTypes(vector<string> &types)
    128. {
    129.  
    130. }
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    Any idea to resolve this ?

    Thanks
    Sajjad
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  2. 14th February 2012, 23:26 #2
    ChrisW67
    ChrisW67 is offline Guru
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    Default Re: Compilation Error While compiling with Third party API

    Move the #include <H3D/*> lines, which presumably include "glew.h", before the #include <QGLFormat>, which presumably includes "gl.h" and "glext.h", line would be my guess.
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  3. The following user says thank you to ChrisW67 for this useful post:

    sajis997 (15th February 2012)
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