spatmod/imagefilterresample.h

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#ifndef  INC_SPATMOD_IMAGEFILTERRESAMPLE_H
#define  INC_SPATMOD_IMAGEFILTERRESAMPLE_H

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

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

#ifndef  INC_SPATMOD_IMAGESAMPLEITERATOR_H
#include <spatmod/imagesampleiterator.h>
#endif

#ifndef  INC_SPATMOD_IMAGEHELPERRESAMPLE_H
#include <spatmod/imagehelperresample.h>
#endif

#ifndef  INC_MI32_TRANS2DMAPGEN_H
#include <mi32/trans2dmapgen.h>
#endif

#ifndef  INC_MI32_RECT_H
#include <mi32/rect.h>
#endif

namespace SPATMOD {
namespace IMAGE {

class BUFFER;

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

class FILTER_RESAMPLE : public FILTER {
   public:

      FILTER_RESAMPLE (
         STAGE *pPreviousStage,              
         bool TakeOwnership,                 
         const DIMENSIONS& Dimensions,       
         const GEOREFERENCE& Georeference,   
         RESAMPLEMETHOD ResampleMethod       
         );

      FILTER_RESAMPLE (
         STAGE *pPreviousStage,              
         bool TakeOwnership,                 
         const BASE& RefImage,               
         RESAMPLEMETHOD ResampleMethod       
         );

      FILTER_RESAMPLE (
         STAGE *pPreviousStage,              
         bool TakeOwnership,                 
         const DIMENSIONS& Dimensions,       
         const TRANS2D_MAPGEN& TransToPrev,  
         RESAMPLEMETHOD ResampleMethod       
         );

      // Destructor.
      virtual ~FILTER_RESAMPLE ();

      const TRANS2D_MAPGEN& GetTransToPrev () const
         { return (m_TransToPrev); }

      void SetAccuracy (
         double accuracy                     
         ) { m_Accuracy = accuracy; }

      void SetUsePrevStageZoom (
         bool UsePrevStageZoom
         ) { m_UsePrevStageZoom = UsePrevStageZoom; }

   private:
      #ifndef GENERATING_DOXYGEN_OUTPUT
      RESAMPLEMETHOD m_ResampleMethod;
      TRANS2D_MAPGEN m_TransToPrev;
      DRECT2D m_SrcRectTotal;
      DOUBLE_ARRAY<DPOINT2D> m_SrcCoord;
      DOUBLE_ARRAY<DPOINT2D> m_TgtCoord;
      HELPER_RESAMPLE m_Resampler;
      double m_Accuracy;
      bool m_PullSinglePixels;
      bool m_HasTrans;
      bool m_UsePrevStageZoom;

      ERRVALUE ComputeSrcMaxSectionSize (
         const SECTION_ITERATOR& TgtIterator,
         DRECT2D& SrcRectAll,
         UINT32& SrcMaxColumns,
         UINT32& SrcMaxRows,
         bool AllowEstimate
         ) const;

      ERRVALUE PullGeneral (const SECTION& SubSection, BUFFER& buffer);

      // 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_PullEnd ();
      virtual ERRVALUE v_PullSubSection (const SECTION& SubSection, BUFFER& buffer);
      virtual float v_QueryIterator (const SECTION_ITERATOR& iterator) const;

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

   };

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

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

#endif   // INC_SPATMOD_IMAGEFILTERRESAMPLE_H

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