MeVisLab/Standard/Sources/Shared/MLLUT/mlLUTBasic.h

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// **InsertLicense** code
//----------------------------------------------------------------------------------

//----------------------------------------------------------------------------------


#ifndef __mlLUTBasic_H
#define __mlLUTBasic_H

// Local includes
#ifndef __mlLUTSystem_H
#include "mlLUTSystem.h"
#endif

// ML includes
#include <mlTypeTraits.h>


ML_START_NAMESPACE


typedef enum {
  LUT_L = 0,  
  LUT_LA,     
  LUT_RGB,    
  LUT_RGBA,   

  // Reordered variants of the above, used in LUTData
  LUT_BGR,    
  LUT_ABGR,   

  // Constant counts
  LUT_NUM_VISUAL_TYPE_LAYOUTS,         
  LUT_NUM_VISUAL_TYPES = LUT_RGBA+1    

} LUTVisualType;


MLLUT_EXPORT extern const char *LUTVisualTypeName[LUT_NUM_VISUAL_TYPE_LAYOUTS];


MLLUT_EXPORT int LUTNumberOfChannels (LUTVisualType visualType);

MLLUT_EXPORT LUTVisualType LUTReducedVisualType (LUTVisualType visualType);

MLLUT_EXPORT int LUTAlphaChannelIndex (LUTVisualType visualType);

MLLUT_EXPORT double LUTConvertRGBtoL (double r, double g, double b);


template <typename T>
inline T LUTCastFromDouble(double value) {
  if (TypeTraits<T>::isBuiltInIntegerType) {
    return static_cast<T>(floor(value+0.5));
  } else {
    return static_cast<T>(value);
  }
}



typedef enum {
  LUT_1D = 1, 
  LUT_2D,     
  LUT_3D      
} LUTDimensionality;


ML_END_NAMESPACE


#endif
// __mlLUTBasic_H