/*=========================================================================

  Program:   Visualization Toolkit
  Module:    vtkOpenGLDisplayListPainter.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.

=========================================================================*/
/**
 * @class   vtkOpenGLDisplayListPainter
 * @brief   display list painter using OpenGL.
 *
 * vtkOpenGLDisplayListPainter creates an OpenGL display list for rendering.
 * This painter creates a different display list for every render request with a
 * different set of typeflags. If any of the data or inputs change, then all
 * display lists are discarded.
*/

#ifndef vtkOpenGLDisplayListPainter_h
#define vtkOpenGLDisplayListPainter_h

#include "vtkRenderingOpenGLModule.h" // For export macro
#include "vtkDisplayListPainter.h"

class VTKRENDERINGOPENGL_EXPORT vtkOpenGLDisplayListPainter : public vtkDisplayListPainter
{
public:
  static vtkOpenGLDisplayListPainter* New();
  vtkTypeMacro(vtkOpenGLDisplayListPainter, vtkDisplayListPainter);
  void PrintSelf(ostream& os, vtkIndent indent) override;

  /**
   * Release any graphics resources that are being consumed by this mapper.
   * The parameter window could be used to determine which graphic
   * resources to release. In this case, releases the display lists.
   */
  void ReleaseGraphicsResources(vtkWindow *) override;

protected:

  vtkOpenGLDisplayListPainter();
  ~vtkOpenGLDisplayListPainter() override;

  /**
   * If not using ImmediateModeRendering, this will build a display list,
   * if outdated and use the display list.
   */
  void RenderInternal(vtkRenderer* renderer, vtkActor* actor,
                              unsigned long typeflags,
                              bool forceCompileOnly) override;

private:
  vtkOpenGLDisplayListPainter(const vtkOpenGLDisplayListPainter&) = delete;
  void operator=(const vtkOpenGLDisplayListPainter&) = delete;

  class vtkInternals;
  vtkInternals* Internals;

};

#endif