IH5Dataset.h

//-*- C++ -*-
//-*- coding: utf-8 -*-
//
// Author: Piyush Agram
// Copyright 2019
 
#pragma once
 
#include "forward.h"
 
#include <gdal_pam.h>
#include <gdal_priv.h>
#include <gdal_rat.h>
#include "IH5.h"
 
 
namespace isce3 {
namespace io {
 
/************************************************************************/
/*                            IH5Dataset                                */
/************************************************************************/

class IH5Dataset final: public GDALDataset
{
    CPL_DISALLOW_COPY_ASSIGN(IH5Dataset)
 
    friend class IH5RasterBand;
 
    //Standard stuff expected from all formats
    int bGeoTransformSet; 
    double adfGeoTransform[6];
 
    char *pszProjection;
    CPLString pszGCPProjection;
    GDAL_GCP *pasGCPList;
    int  nGCPCount; 
    OGRSpatialReference oSRS;
 
    //IDataSet from Francois's IH5
    isce3::io::IDataSet* _dataset;
    H5::DataType nativeType;
    H5::DataType actualType;
    int ndims;
    int dimensions[3];
    int chunks[3];
 
    protected:
        CPLErr populateFromDataset();
 
    public:
        IH5Dataset(const hid_t &inputds, GDALAccess eAccess);

        virtual ~IH5Dataset();
 
        virtual int GetGCPCount() override;
        virtual const GDAL_GCP *GetGCPs() override;
 
        void *GetInternalHandle (const char *) override;
 
        virtual CPLErr GetGeoTransform( double *padfTransform ) override;
        virtual CPLErr SetGeoTransform( double * ) override;
        static GDALDataset *Open(GDALOpenInfo *info);
        static int Identify(GDALOpenInfo *info);
};
 
 
/************************************************************************/
/*                            IH5RasterBand                             */
/************************************************************************/

class IH5RasterBand : public GDALPamRasterBand
{
    protected:
        friend class IH5Dataset;
        bool bNoDataSet;
        double dfNoData;
 
    public:
        IH5RasterBand(IH5Dataset *ds, int band, 
                      GDALDataType eTypeIn);
 
        virtual ~IH5RasterBand();
 
        virtual CPLErr IReadBlock( int, int, void * ) override;
        virtual CPLErr IWriteBlock( int, int, void * ) override;
        virtual double GetNoDataValue( int *pbSuccess = nullptr ) override;
        virtual CPLErr SetNoDataValue( double ) override;
};
 

void GDALRegister_IH5();
 
}} // namespace isce3::io