vtkOpenGLImageAlgorithmHelper.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
 
#ifndef vtkOpenGLImageAlgorithmHelper_h
#define vtkOpenGLImageAlgorithmHelper_h
 
#include "vtkObject.h"
#include "vtkRenderingOpenGL2Module.h" // For export macro
 
#include "vtkOpenGLHelper.h" // used for ivars
#include "vtkSmartPointer.h" // for ivar
 
VTK_ABI_NAMESPACE_BEGIN
class vtkOpenGLRenderWindow;
class vtkRenderWindow;
class vtkImageData;
class vtkDataArray;
 
class vtkOpenGLImageAlgorithmCallback
{
public:
  virtual void InitializeShaderUniforms(vtkShaderProgram* /* program */) {}
  virtual void UpdateShaderUniforms(vtkShaderProgram* /* program */, int /* zExtent */) {}
  virtual ~vtkOpenGLImageAlgorithmCallback() = default;
  vtkOpenGLImageAlgorithmCallback() = default;
 
private:
  vtkOpenGLImageAlgorithmCallback(const vtkOpenGLImageAlgorithmCallback&) = delete;
  void operator=(const vtkOpenGLImageAlgorithmCallback&) = delete;
};
 
class VTKRENDERINGOPENGL2_EXPORT vtkOpenGLImageAlgorithmHelper : public vtkObject
{
public:
  static vtkOpenGLImageAlgorithmHelper* New();
  vtkTypeMacro(vtkOpenGLImageAlgorithmHelper, vtkObject);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
  void Execute(vtkOpenGLImageAlgorithmCallback* cb, vtkImageData* inImage, vtkDataArray* inData,
    vtkImageData* outData, VTK_FUTURE_CONST int outExt[6], const char* vertexCode,
    const char* fragmentCode, const char* geometryCode);

  void SetRenderWindow(vtkRenderWindow* renWin);
 
protected:
  vtkOpenGLImageAlgorithmHelper();
  ~vtkOpenGLImageAlgorithmHelper() override;
 
  vtkSmartPointer<vtkOpenGLRenderWindow> RenderWindow;
  vtkOpenGLHelper Quad;
 
private:
  vtkOpenGLImageAlgorithmHelper(const vtkOpenGLImageAlgorithmHelper&) = delete;
  void operator=(const vtkOpenGLImageAlgorithmHelper&) = delete;
};
 
VTK_ABI_NAMESPACE_END
#endif