dox/Rendering/vtkTexture.h

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

  Program:   Visualization Toolkit
  Module:    vtkTexture.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 __vtkTexture_h
#define __vtkTexture_h

#include "vtkImageAlgorithm.h"

class vtkImageData;
class vtkScalarsToColors;
class vtkRenderer;
class vtkUnsignedCharArray;
class vtkWindow;
class vtkDataArray;
class vtkTransform;

#define VTK_TEXTURE_QUALITY_DEFAULT 0
#define VTK_TEXTURE_QUALITY_16BIT   16
#define VTK_TEXTURE_QUALITY_32BIT   32

class VTK_RENDERING_EXPORT vtkTexture : public vtkImageAlgorithm
{
public:
  static vtkTexture *New();
  vtkTypeMacro(vtkTexture,vtkImageAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent);

  virtual void Render(vtkRenderer *ren);

  virtual void PostRender(vtkRenderer *) {};

  virtual void ReleaseGraphicsResources(vtkWindow *) {};

  virtual void Load(vtkRenderer *) {};


  vtkGetMacro(Repeat,int);
  vtkSetMacro(Repeat,int);
  vtkBooleanMacro(Repeat,int);


  vtkGetMacro(EdgeClamp,int);
  vtkSetMacro(EdgeClamp,int);
  vtkBooleanMacro(EdgeClamp,int);


  vtkGetMacro(Interpolate,int);
  vtkSetMacro(Interpolate,int);
  vtkBooleanMacro(Interpolate,int);


  vtkSetMacro(Quality,int);
  vtkGetMacro(Quality,int);
  void SetQualityToDefault() {this->SetQuality(VTK_TEXTURE_QUALITY_DEFAULT);};
  void SetQualityTo16Bit() {this->SetQuality(VTK_TEXTURE_QUALITY_16BIT);};
  void SetQualityTo32Bit() {this->SetQuality(VTK_TEXTURE_QUALITY_32BIT);};


  vtkGetMacro(MapColorScalarsThroughLookupTable,int);
  vtkSetMacro(MapColorScalarsThroughLookupTable,int);
  vtkBooleanMacro(MapColorScalarsThroughLookupTable,int);

//BTX

  vtkImageData *GetInput();
//ETX


  void SetLookupTable(vtkScalarsToColors *);
  vtkGetObjectMacro(LookupTable,vtkScalarsToColors);


  vtkGetObjectMacro(MappedScalars,vtkUnsignedCharArray);

  unsigned char *MapScalarsToColors (vtkDataArray *scalars);


  void SetTransform(vtkTransform *transform);
  vtkGetObjectMacro(Transform, vtkTransform);

//BTX

  enum VTKTextureBlendingMode
  {
    VTK_TEXTURE_BLENDING_MODE_NONE = 0,
    VTK_TEXTURE_BLENDING_MODE_REPLACE,
    VTK_TEXTURE_BLENDING_MODE_MODULATE,
    VTK_TEXTURE_BLENDING_MODE_ADD,
    VTK_TEXTURE_BLENDING_MODE_ADD_SIGNED,
    VTK_TEXTURE_BLENDING_MODE_INTERPOLATE,
    VTK_TEXTURE_BLENDING_MODE_SUBTRACT
  };
//ETX


  vtkGetMacro(BlendingMode, int);
  vtkSetMacro(BlendingMode, int);


  vtkGetMacro(PremultipliedAlpha,bool);
  vtkSetMacro(PremultipliedAlpha,bool);
  vtkBooleanMacro(PremultipliedAlpha,bool);


  vtkGetMacro(RestrictPowerOf2ImageSmaller,int);
  vtkSetMacro(RestrictPowerOf2ImageSmaller,int);
  vtkBooleanMacro(RestrictPowerOf2ImageSmaller,int);

  virtual int IsTranslucent();

protected:
  vtkTexture();
  ~vtkTexture();

  int   Repeat;
  int   EdgeClamp;
  int   Interpolate;
  int   Quality;
  int   MapColorScalarsThroughLookupTable;
  vtkScalarsToColors *LookupTable;
  vtkUnsignedCharArray *MappedScalars;
  vtkTransform  *Transform;

  int BlendingMode;
  int RestrictPowerOf2ImageSmaller;
  // this is to duplicated the previous behavior of SelfCreatedLookUpTable
  int SelfAdjustingTableRange;
  bool PremultipliedAlpha;

  // the result of HasTranslucentPolygonalGeometry is cached
  vtkTimeStamp TranslucentComputationTime;
  int TranslucentCachedResult;

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

#endif

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