JP2Decoder.h

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#ifndef JP2Decoder_h
#define JP2Decoder_h

#include <string>

#if ENABLEJP2K
#include "jp2.h"
#include "kdu_stripe_decompressor.h"
#endif

#define MIN_STRIPE_HEIGHT 256
#define MAX_STRIPE_HEIGHT 8192

namespace Isis {
  class JP2Error;

  class JP2Decoder {
    public:
      JP2Decoder(const QString &jp2file);
      ~JP2Decoder();

      // Register with the Kakadu error facility
      JP2Error *kakadu_error() const {
        return Kakadu_Error;
      };

      // Open and initialize the JP2 file for reading
      void OpenFile();

      // Get the sample dimension of the JP2 file
      inline int GetSampleDimension() const {
        return ((int) p_numSamples);
      }

      // Get the line dimension of the JP2 file
      inline int GetLineDimension() const {
        return ((int) p_numLines);
      }

      // Get the band dimension of the JP2 file
      inline int GetBandDimension() const {
        return ((int) p_numBands);
      }

      // Get number of bytes per pixel in the JP2 file
      inline int GetPixelBytes() const {
        return (p_pixelBytes);
      }

      // Determine if data in JP2 file is signed
      inline bool GetSignedData() const {
        return (p_signedData);
      }

      // Read byte data from the JP2 file
      void Read(unsigned char **inbuf);

      // Read 16-bit data from the JP2 file
      void Read(short int **inbuf);

      static bool IsJP2(QString filename);

    private:
      QString p_jp2File;          
      unsigned int p_numSamples;      
      unsigned int p_numLines;        
      unsigned int p_numBands;        
      unsigned int p_pixelBytes;      
      bool p_signedData;              

#if ENABLEJP2K
      unsigned int p_resolutionLevel; 
      unsigned int p_highestResLevel; 
      int *p_maxStripeHeights;        
      int *p_precisions;              
      bool *p_isSigned;               
      int *p_stripeHeights;           

      unsigned int p_pixelBits;       
      bool p_readStripes;             


      kdu_core::kdu_dims p_imageDims;           
      kdu_supp::jp2_family_src *JP2_Stream;     
      kdu_supp::jp2_source *JP2_Source;         
      kdu_core::kdu_codestream *JPEG2000_Codestream;    
      kdu_supp::kdu_stripe_decompressor p_decompressor; 
#endif
      JP2Error *Kakadu_Error;         

      void SetResolutionAndRegion();  
  };
};
#endif