dox/Rendering/vtkShaderDeviceAdapter.h

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

  Program:   Visualization Toolkit
  Module:    vtkShaderDeviceAdapter.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 __vtkShaderDeviceAdapter_h
#define __vtkShaderDeviceAdapter_h

#include "vtkObject.h"

class vtkShaderProgram;

class VTK_RENDERING_EXPORT vtkShaderDeviceAdapter : public vtkObject
{
public:
  vtkTypeMacro(vtkShaderDeviceAdapter, vtkObject);
  virtual void PrintSelf(ostream &os, vtkIndent indent);


  virtual void SendAttribute(const char* attrname,
    int components, int type, 
    const void* attribute, unsigned long offset=0)=0;
    

  void SetShaderProgram(vtkShaderProgram* pgm)
    { this->ShaderProgram = pgm; }
  vtkGetObjectMacro(ShaderProgram, vtkShaderProgram);

  // Descrition:
  // This method is called before rendering. This gives the shader device
  // adapter an opportunity to collect information, such as attribute indices
  // that it will need while rendering.
  virtual void PrepareForRender()=0;
protected:
  vtkShaderDeviceAdapter();
  ~vtkShaderDeviceAdapter();

  vtkShaderProgram* ShaderProgram;

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

#endif