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#ifndef __GRFMT_GDAL_HPP__
#define __GRFMT_GDAL_HPP__
/// OpenCV FMT Base Type
#include "grfmt_base.hpp"
/// Macro to make sure we specified GDAL in CMake
#ifdef HAVE_GDAL
/// C++ Libraries
#include <iostream>
/// Geospatial Data Abstraction Library
#include <cpl_conv.h>
#include <gdal_priv.h>
#include <gdal.h>
/// Start of CV Namespace
namespace cv {
/**
* Convert GDAL Pixel Range to OpenCV Pixel Range
*/
double range_cast( const GDALDataType& gdalType,
const int& cvDepth,
const double& value );
/**
* Convert GDAL Palette Interpretation to OpenCV Pixel Type
*/
int gdalPaletteInterpretation2OpenCV( GDALPaletteInterp const& paletteInterp,
GDALDataType const& gdalType );
/**
* Convert a GDAL Raster Type to OpenCV Type
*/
int gdal2opencv( const GDALDataType& gdalType, const int& channels );
/**
* Write an image to pixel
*/
void write_pixel( const double& pixelValue,
GDALDataType const& gdalType,
const int& gdalChannels,
Mat& image,
const int& row,
const int& col,
const int& channel );
/**
* Write a color table pixel to the image
*/
void write_ctable_pixel( const double& pixelValue,
const GDALDataType& gdalType,
const GDALColorTable* gdalColorTable,
Mat& image,
const int& y,
const int& x,
const int& c );
/**
* Loader for GDAL
*/
class GdalDecoder : public BaseImageDecoder{
public:
/**
* Default Constructor
*/
GdalDecoder();
/**
* Destructor
*/
~GdalDecoder();
/**
* Read image data
*/
bool readData( Mat& img );
/**
* Read the image header
*/
bool readHeader();
/**
* Close the module
*/
void close();
/**
* Create a new decoder
*/
ImageDecoder newDecoder() const;
/**
* Test the file signature
*
* In general, this should be avoided as the user should specifically request GDAL.
* The reason is that GDAL tends to overlap with other image formats and it is probably
* safer to use other formats first.
*/
virtual bool checkSignature( const String& signature ) const;
protected:
/// GDAL Dataset
GDALDataset* m_dataset;
/// GDAL Driver
GDALDriver* m_driver;
/// Check if we are reading from a color table
bool hasColorTable;
}; /// End of GdalDecoder Class
} /// End of Namespace cv
#endif/*HAVE_GDAL*/
#endif/*__GRFMT_GDAL_HPP__*/