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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.
=========================================================================*/
/**
* @class vtkImageProcessingPass
* @brief Convenient class for post-processing passes.
* render pass.
*
* Abstract class with some convenient methods frequently used in subclasses.
*
*
* @sa
* vtkOpenGLRenderPass vtkGaussianBlurPass vtkSobelGradientMagnitudePass
*/
#ifndef vtkImageProcessingPass_h
#define vtkImageProcessingPass_h
#include "vtkOpenGLRenderPass.h"
#include "vtkRenderingOpenGL2Module.h" // For export macro
class vtkOpenGLRenderWindow;
class vtkDepthPeelingPassLayerList; // Pimpl
class vtkOpenGLFramebufferObject;
class vtkTextureObject;
class VTKRENDERINGOPENGL2_EXPORT vtkImageProcessingPass : public vtkOpenGLRenderPass
{
public:
vtkTypeMacro(vtkImageProcessingPass, vtkOpenGLRenderPass);
void PrintSelf(ostream& os, vtkIndent indent) override;
/**
* Release graphics resources and ask components to release their own
* resources.
* \pre w_exists: w!=0
*/
void ReleaseGraphicsResources(vtkWindow* w) override;
//@{
/**
* Delegate for rendering the image to be processed.
* If it is NULL, nothing will be rendered and a warning will be emitted.
* It is usually set to a vtkCameraPass or to a post-processing pass.
* Initial value is a NULL pointer.
*/
vtkGetObjectMacro(DelegatePass, vtkRenderPass);
virtual void SetDelegatePass(vtkRenderPass* delegatePass);
//@}
protected:
/**
* Default constructor. DelegatePass is set to NULL.
*/
vtkImageProcessingPass();
/**
* Destructor.
*/
~vtkImageProcessingPass() override;
/**
* Render delegate with a image of different dimensions than the
* original one.
* \pre s_exists: s!=0
* \pre fbo_exists: fbo!=0
* \pre fbo_has_context: fbo->GetContext()!=0
* \pre target_exists: target!=0
* \pre target_has_context: target->GetContext()!=0
*/
void RenderDelegate(const vtkRenderState* s, int width, int height, int newWidth, int newHeight,
vtkOpenGLFramebufferObject* fbo, vtkTextureObject* target);
vtkRenderPass* DelegatePass;
private:
vtkImageProcessingPass(const vtkImageProcessingPass&) = delete;
void operator=(const vtkImageProcessingPass&) = delete;
};
#endif