/usr/include/paraview/vtkOpenGLHardwareSupport.h is in paraview-dev 5.0.1+dfsg1-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72  | /*=========================================================================
  Program:   Visualization Toolkit
  Module:    vtkOpenGLHardwareSupport.h
  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
  All rights reserved.
  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notice for more information.
=========================================================================*/
// .NAME vtkOpenGLHardwareSupport - OpenGL rendering window
// .SECTION Description
// vtkOpenGLHardwareSupport is an implementation of methods used
// to query OpenGL and the hardware of what kind of graphics support
// is available. When VTK supports more than one Graphics API an
// abstract super class vtkHardwareSupport should be implemented
// for this class to derive from.
#ifndef vtkOpenGLHardwareSupport_h
#define vtkOpenGLHardwareSupport_h
#include "vtkRenderingOpenGLModule.h" // For export macro
#include "vtkObject.h"
class vtkOpenGLExtensionManager;
class VTKRENDERINGOPENGL_EXPORT vtkOpenGLHardwareSupport :
  public vtkObject //: public vtkHardwareSupport
{
public:
  vtkTypeMacro(vtkOpenGLHardwareSupport, vtkObject);
  void PrintSelf(ostream& os, vtkIndent indent);
  static vtkOpenGLHardwareSupport *New();
  // Description:
  // Return the number of fixed-function texture units.
  int GetNumberOfFixedTextureUnits();
  // Description:
  // Return the total number of texture image units accessible by a shader
  // program.
  int GetNumberOfTextureUnits();
  // Description:
  // Test if MultiTexturing is supported.
  bool GetSupportsMultiTexturing();
  // Description:
  // Set/Get a reference to a vtkRenderWindow which is Required
  // for most methods of this class to work.
  vtkGetObjectMacro(ExtensionManager, vtkOpenGLExtensionManager);
  void SetExtensionManager(vtkOpenGLExtensionManager* extensionManager);
protected:
  vtkOpenGLHardwareSupport();
  ~vtkOpenGLHardwareSupport();
private:
  vtkOpenGLHardwareSupport(const vtkOpenGLHardwareSupport&);  // Not implemented.
  void operator=(const vtkOpenGLHardwareSupport&);  // Not implemented.
  bool ExtensionManagerSet();
  vtkOpenGLExtensionManager* ExtensionManager;
};
#endif
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