/usr/include/tulip/GlTLPFeedBackBuilder.h is in libtulip-ogl-dev 3.1.2-2.3ubuntu3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/**
 Authors: David Auber, Patrick Mary, Morgan Mathiaut
 from the LaBRI Visualization Team
 Email : auber@tulip-software.org
 Last modification : 13/03/2009 
 This program is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by  
 the Free Software Foundation; either version 2 of the License, or     
 (at your option) any later version.
*/
#ifndef Tulip_GLTLPFEEDBACKBUILDER_H
#define Tulip_GLTLPFEEDBACKBUILDER_H
#include <vector>
#include <tulip/Color.h>
#include "tulip/GlFeedBackBuilder.h"
namespace tlp {
  enum TLP_FB_TROUGHTOKENTYPE {
    TLP_FB_COLOR_INFO,
    TLP_FB_BEGIN_ENTITY,
    TLP_FB_END_ENTITY,
    TLP_FB_BEGIN_GRAPH,
    TLP_FB_END_GRAPH,
    TLP_FB_BEGIN_NODE,
    TLP_FB_END_NODE,
    TLP_FB_BEGIN_EDGE,
    TLP_FB_END_EDGE
  };
  
  class TLP_GL_SCOPE GlTLPFeedBackBuilder : public GlFeedBackBuilder {
  
  public:
  
    GlTLPFeedBackBuilder()
      :inGlEntity(false),
      inGlGraph(false),
      inNode(false),
      inEdge(false),
      inColorInfo(false),
      needData(false){}
    virtual ~GlTLPFeedBackBuilder() {}
    virtual void begin(Vector<float,4>& viewport) {}
    virtual void colorInfo(GLfloat *data) {}
    virtual void beginGlEntity(GLfloat data) {}
    virtual void endGlEntity() {}
    virtual void beginGlGraph(GLfloat data) {}
    virtual void endGlGraph() {}
    virtual void beginNode(GLfloat data) {}
    virtual void endNode() {}
    virtual void beginEdge(GLfloat data) {}
    virtual void endEdge() {}
    virtual void passThroughToken(GLfloat *data);
    virtual void pointToken(GLfloat *data) {}
    virtual void lineToken(GLfloat *data) {}
    virtual void lineResetToken(GLfloat *data) {}
    virtual void polygonToken(GLfloat *data) {}
    virtual void bitmapToken(GLfloat *data) {}
    virtual void drawPixelToken(GLfloat *data) {}
    virtual void copyPixelToken(GLfloat *data) {}
    virtual void end() {}
  private:
    
    bool inGlEntity;
    bool inGlGraph;
    bool inNode;
    bool inEdge;
    bool inColorInfo;
    bool needData;
    std::vector<GLfloat> dataBuffer; 
  };
  
}
#endif // Tulip_GLFEEDBACKBUILDER_H
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