ColorTranslator.hh

/*===========================================================================*\
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 *                              OpenFlipper                                  *
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/*===========================================================================*\
 *                                                                           *
 *   $Revision: 6743 $                                                       *
 *   $Author: moebius $                                                      *
 *   $Date: 2009-08-05 11:03:10 +0200 (Mi, 05. Aug 2009) $                   *
 *                                                                           *
\*===========================================================================*/


//=============================================================================
//
//  CLASS ColorTranslator
//
//=============================================================================

#ifndef ACG_COLORTRANSLATOR_HH
#define ACG_COLORTRANSLATOR_HH


//== INCLUDES =================================================================


#include "gl.hh"
#include "../Math/VectorT.hh"


//== NAMESPACES ===============================================================


namespace ACG {


//== CLASS DEFINITION =========================================================


class ACGDLLEXPORT ColorTranslator
{
public:
   
  ColorTranslator() : initialized_(false) {};
  ~ColorTranslator() {};

  
  void initialize();
  bool initialized() const { return initialized_; }


  Vec4uc index2color(unsigned int _idx) const;
  int color2index(Vec4uc _rgba) const;


  unsigned int max_index() const;
  
  
private:

  bool     initialized_;
  GLint    red_bits_, green_bits_, blue_bits_, alpha_bits_;
  GLuint   red_mask_, green_mask_, blue_mask_, alpha_mask_;
  GLuint   red_shift_, green_shift_, blue_shift_, alpha_shift_;
  GLuint   red_round_, green_round_, blue_round_, alpha_round_;
};


//=============================================================================
} // namespace ACG
//=============================================================================
#endif // ACG_COLORTRANSLATOR_HH defined
//=============================================================================