94 lines
2.3 KiB
C
94 lines
2.3 KiB
C
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#ifndef GDALAccessor_h
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#define GDALAccessor_h
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#ifndef MESSAGE
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#define MESSAGE cout << "file " << __FILE__ << " line " << __LINE__ << endl;
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#endif
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#ifndef ERR_MESSAGE
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#define ERR_MESSAGE cout << "Error in file " << __FILE__ << " at line " << __LINE__ << " Exiting" << endl; exit(1);
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#endif
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#include <iostream>
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#include "InterleavedBase.h"
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#include <stdint.h>
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#include "gdal_priv.h"
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#include <string.h>
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using namespace std;
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/*
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* NOTE:
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* Since GDAL RasterIO always returns data in BSQ regardless of the underlying scheme there is no need
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* to have separate accessor for each interleaving scheme when reading.
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*/
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class GDALAccessor : public InterleavedBase
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{
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public:
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GDALAccessor () :
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InterleavedBase ()
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{
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FileObject = NULL;
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Driver = NULL;
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//For the moment let's use VRT
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DriverName = "VRT";
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GDALAllRegister ();
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LastPosition = 0;
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}
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virtual
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~GDALAccessor ()
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{
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}
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//NOTE sizeV here is identify the enum value corresponding to a specific GDALDataType
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//NOTE the filename is the one used in GDALOpen
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void
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init (string filename, string accessMode, int sizeV);
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void
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init (string filename, string accessMode, int sizeV, int Bands,
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int LineWidth);
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void
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openFile (string filename, string accessMode, GDALDataset ** fd);
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GDALDataset *
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getFileObject ()
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{
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return FileObject;
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}
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void
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init (void * poly);
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void
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getStreamAtPos (char * buf, int & pos, int & numEl);
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void
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setStreamAtPos (char * buf, int & pos, int & numEl);
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void
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getStream (char * buf, int & numEl);
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void
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setStream (char * buf, int numEl);
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void
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getData (char * buf, int row, int col, int & numEl);
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void
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getDataBand (char * buf, int row, int col, int & numEl, int band);
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void
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setData (char * buf, int row, int col, int numEl);
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void
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setDataBand (char * buf, int row, int col, int numEl, int band);
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void
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rewindAccessor ();
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void
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createFile (int numberOfLine);
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int
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getFileLength ();
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void
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finalize ();
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protected:
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GDALDataset * FileObject;
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GDALDriver * Driver;
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//Use default vrt but it into a variable in case we want to use different ones in the future
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string DriverName;
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streampos LastPosition;
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//gdal enum datasettype
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GDALDataType DataType;
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streampos FileSize;
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};
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#endif //GDALAccessor_h
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