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

  Program:   Visualization Toolkit
  Module:    vtkImageProcessingPass.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.

=========================================================================*/
#ifndef vtkImageProcessingPass_h
#define vtkImageProcessingPass_h

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

class vtkOpenGLRenderWindow;
class vtkDepthPeelingPassLayerList; // Pimpl
class vtkShaderProgram2;
class vtkShader2;
class vtkFrameBufferObject;
class vtkTextureObject;

class VTKRENDERINGOPENGL_EXPORT vtkImageProcessingPass : public vtkRenderPass
{
public:
  vtkTypeMacro(vtkImageProcessingPass,vtkRenderPass);
  void PrintSelf(ostream& os, vtkIndent indent);

  void ReleaseGraphicsResources(vtkWindow *w);


  vtkGetObjectMacro(DelegatePass,vtkRenderPass);
  virtual void SetDelegatePass(vtkRenderPass *delegatePass);

 protected:
  vtkImageProcessingPass();

  virtual ~vtkImageProcessingPass();


  void RenderDelegate(const vtkRenderState *s,
                      int width,
                      int height,
                      int newWidth,
                      int newHeight,
                      vtkFrameBufferObject *fbo,
                      vtkTextureObject *target);


  vtkRenderPass *DelegatePass;

 private:
  vtkImageProcessingPass(const vtkImageProcessingPass&);  // Not implemented.
  void operator=(const vtkImageProcessingPass&);  // Not implemented.
};

#endif