vtkMesaImageActor.h

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

  Program:   Visualization Toolkit
  Module:    $RCSfile: vtkMesaImageActor.h,v $

  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.

=========================================================================*/
#ifndef __vtkMesaImageActor_h
#define __vtkMesaImageActor_h

#include "vtkImageActor.h"

class vtkWindow;
class vtkMesaRenderer;
class vtkRenderWindow;

class VTK_RENDERING_EXPORT vtkMesaImageActor : public vtkImageActor
{
public:
  static vtkMesaImageActor *New();
  vtkTypeRevisionMacro(vtkMesaImageActor,vtkImageActor);
  virtual void PrintSelf(ostream& os, vtkIndent indent);

  void Load(vtkRenderer *ren);
  
  void Render(vtkRenderer *ren);

  void ReleaseGraphicsResources(vtkWindow *);

protected:
  vtkMesaImageActor();
  ~vtkMesaImageActor();

  unsigned char *MakeDataSuitable(int &xsize, int &ysize,
                                  int &release, int &reuseTexture);

  vtkTimeStamp   LoadTime;
  long          Index;
  static   long GlobalIndex;
  vtkRenderWindow *RenderWindow;   // RenderWindow used for previous render
  double Coords[12];
  double TCoords[8];
  int TextureSize[2];
  
  // Non-recursive internal method
  void InternalRender(vtkRenderer *ren);
  
  // Is a certain size texture supported?
  int TextureSizeOK( int size[2] );
  
private:
  vtkMesaImageActor(const vtkMesaImageActor&);  // Not implemented.
  void operator=(const vtkMesaImageActor&);  // Not implemented.
};

#endif

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