spatmod/imagefilterzoom.h

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#ifndef  INC_SPATMOD_IMAGEFILTERZOOM_H
#define  INC_SPATMOD_IMAGEFILTERZOOM_H

#ifndef  INC_SPATMOD_IMAGEFILTER_H
#include <spatmod/imagefilter.h>
#endif

#ifndef  INC_SPATMOD_IMAGESECTION_H
#include <spatmod/imagesection.h>
#endif

#ifndef  INC_SPATMOD_IMAGERESAMPLEMETHOD_H
#include <spatmod/imageresamplemethod.h>
#endif

namespace SPATMOD {
namespace IMAGE {

class BUFFER;

//=====================================================================================================================

class FILTER_ZOOM : public FILTER {
   public:

      enum PREVSTAGEUSAGE {
         PREVSTAGEUSAGE_None,                
         PREVSTAGEUSAGE_Exact,               
         PREVSTAGEUSAGE_Nearest,             
         };

      FILTER_ZOOM (
         STAGE *pPreviousStage,              
         bool TakeOwnership,                 
         double Scale,                       
         PREVSTAGEUSAGE PrevStageUsage,      
         RESAMPLEMETHOD ResampleMethod       
         );

      FILTER_ZOOM (
         STAGE *pPreviousStage,              
         bool TakeOwnership,                 
         const BASE& RefImage,               
         PREVSTAGEUSAGE PrevStageUsage,      
         RESAMPLEMETHOD ResampleMethod       
         );

      FILTER_ZOOM (
         STAGE *pPreviousStage,              
         bool TakeOwnership,                 
         INT32 NumColumns,                   
         INT32 NumRows,                      
         PREVSTAGEUSAGE PrevStageUsage,      
         RESAMPLEMETHOD ResampleMethod       
         );

      // Destructor.
      virtual ~FILTER_ZOOM ();

   private:
      #ifndef GENERATING_DOXYGEN_OUTPUT
      double m_ZoomX;
      double m_ZoomY;
      double m_PrevStageZoom;
      DIMENSIONS m_PrevStageDims;
      RESAMPLEMETHOD m_ResampleMethod;
      PREVSTAGEUSAGE m_PrevStageUsage;
      INT32 m_IntZoom;
      INT32 m_IntSample;
      INT32 m_Margin;
      SECTION m_PrevSection;

      ERRVALUE BeginIteratorPrevStage (
         const SECTION_ITERATOR& Iterator,
         SECTION_ITERATOR& IteratorPrev
         ) const;

      ERRVALUE DoAverage (BUFFER& TgtBuffer, const SECTION& SrcSection, BUFFER& SrcBuffer) const;
      ERRVALUE DoAverageUINT8 (BUFFER& TgtBuffer, const SECTION& SrcSection, const BUFFER& SrcBuffer) const;
      ERRVALUE DoAverageSINT8 (BUFFER& TgtBuffer, const SECTION& SrcSection, const BUFFER& SrcBuffer) const;
      ERRVALUE DoAverageUINT16 (BUFFER& TgtBuffer, const SECTION& SrcSection, const BUFFER& SrcBuffer) const;
      ERRVALUE DoAverageSINT16 (BUFFER& TgtBuffer, const SECTION& SrcSection, const BUFFER& SrcBuffer) const;
      ERRVALUE DoAverageUINT32 (BUFFER& TgtBuffer, const SECTION& SrcSection, const BUFFER& SrcBuffer) const;
      ERRVALUE DoAverageSINT32 (BUFFER& TgtBuffer, const SECTION& SrcSection, const BUFFER& SrcBuffer) const;
      ERRVALUE DoAverageFLOAT32 (BUFFER& TgtBuffer, const SECTION& SrcSection, const BUFFER& SrcBuffer) const;
      ERRVALUE DoAverageFLOAT64 (BUFFER& TgtBuffer, const SECTION& SrcSection, const BUFFER& SrcBuffer) const;

      ERRVALUE DoMaximum (BUFFER& TgtBuffer, const SECTION& SrcSection, BUFFER& SrcBuffer) const;
      ERRVALUE DoMaximumUINT8 (BUFFER& TgtBuffer, const SECTION& SrcSection, const BUFFER& SrcBuffer) const;
      ERRVALUE DoMaximumSINT8 (BUFFER& TgtBuffer, const SECTION& SrcSection, const BUFFER& SrcBuffer) const;
      ERRVALUE DoMaximumUINT16 (BUFFER& TgtBuffer, const SECTION& SrcSection, const BUFFER& SrcBuffer) const;
      ERRVALUE DoMaximumSINT16 (BUFFER& TgtBuffer, const SECTION& SrcSection, const BUFFER& SrcBuffer) const;
      ERRVALUE DoMaximumUINT32 (BUFFER& TgtBuffer, const SECTION& SrcSection, const BUFFER& SrcBuffer) const;
      ERRVALUE DoMaximumSINT32 (BUFFER& TgtBuffer, const SECTION& SrcSection, const BUFFER& SrcBuffer) const;
      ERRVALUE DoMaximumFLOAT32 (BUFFER& TgtBuffer, const SECTION& SrcSection, const BUFFER& SrcBuffer) const;
      ERRVALUE DoMaximumFLOAT64 (BUFFER& TgtBuffer, const SECTION& SrcSection, const BUFFER& SrcBuffer) const;

      ERRVALUE DoMinimum (BUFFER& TgtBuffer, const SECTION& SrcSection, BUFFER& SrcBuffer) const;
      ERRVALUE DoMinimumUINT8 (BUFFER& TgtBuffer, const SECTION& SrcSection, const BUFFER& SrcBuffer) const;
      ERRVALUE DoMinimumSINT8 (BUFFER& TgtBuffer, const SECTION& SrcSection, const BUFFER& SrcBuffer) const;
      ERRVALUE DoMinimumUINT16 (BUFFER& TgtBuffer, const SECTION& SrcSection, const BUFFER& SrcBuffer) const;
      ERRVALUE DoMinimumSINT16 (BUFFER& TgtBuffer, const SECTION& SrcSection, const BUFFER& SrcBuffer) const;
      ERRVALUE DoMinimumUINT32 (BUFFER& TgtBuffer, const SECTION& SrcSection, const BUFFER& SrcBuffer) const;
      ERRVALUE DoMinimumSINT32 (BUFFER& TgtBuffer, const SECTION& SrcSection, const BUFFER& SrcBuffer) const;
      ERRVALUE DoMinimumFLOAT32 (BUFFER& TgtBuffer, const SECTION& SrcSection, const BUFFER& SrcBuffer) const;
      ERRVALUE DoMinimumFLOAT64 (BUFFER& TgtBuffer, const SECTION& SrcSection, const BUFFER& SrcBuffer) const;

      ERRVALUE DoNearest (BUFFER& TgtBuffer, const SECTION& SrcSection, const BUFFER& SrcBuffer) const;

      // BASE/STAGE/FILTER overrides.
      virtual const char* v_GetTypeName () const;
      virtual ERRVALUE v_Initialize ();
      virtual ERRVALUE v_PullBegin (const SECTION_ITERATOR& iterator);
      virtual ERRVALUE v_PullSubSection (const SECTION& SubSection, BUFFER& buffer);
      virtual float v_QueryIterator (const SECTION_ITERATOR& iterator) const;

      // Unimplemented
      FILTER_ZOOM (const FILTER_ZOOM&);
      FILTER_ZOOM& operator= (const FILTER_ZOOM&);
      #endif // GENERATING_DOXYGEN_OUTPUT

   };

//=====================================================================================================================

}  // End namespace IMAGE
}  // End namespace SPATMOD

#endif   // INC_SPATMOD_IMAGEFILTERZOOM_H

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