tinytiffreader.hxx

/*
    Copyright (c) 2008-2024 Jan W. Krieger (<jan@jkrieger.de>), German Cancer Research Center (DKFZ) & IWR, University of Heidelberg
 
    This software is free software: you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License (LGPL) as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 
*/
 
 
#ifndef TINYTIFFREADER_HXX
#define TINYTIFFREADER_HXX
 
extern "C" {
    #include "tinytiffreader.h"
}
#include <stdexcept>
#include <vector>
 
 
 
template <class Tin, class Tout>
inline void TinyTIFFReader_readFrame(TinyTIFFReaderFile* tif, Tout* buffer, uint16_t sample=0) {
    uint32_t wwidth=TinyTIFFReader_getWidth(tif);
    uint32_t hheight=TinyTIFFReader_getHeight(tif);
    std::vector<Tin> tmp;
    tmp.resize(wwidth*hheight);
    TinyTIFFReader_getSampleData_s(tif, tmp.data(), tmp.size()*sizeof(Tin), sample);
    for (uint32_t i=0; i<wwidth*hheight; i++) {
        buffer[i]=static_cast<Tout>(tmp[i]);
    }
}
 
template <class Tin, class Tout>
inline void TinyTIFFReader_readFrame_s(TinyTIFFReaderFile* tif, Tout* buffer, unsigned long buffer_size, uint16_t sample=0) {
    uint32_t wwidth=TinyTIFFReader_getWidth(tif);
    uint32_t hheight=TinyTIFFReader_getHeight(tif);
    if (buffer_size<wwidth*hheight) throw std::runtime_error("output buffer too small!");
    std::vector<Tin> tmp;
    tmp.resize(wwidth*hheight);
    TinyTIFFReader_getSampleData_s(tif, tmp.data(), tmp.size()*sizeof(Tin), sample);
    for (uint32_t i=0; i<wwidth*hheight; i++) {
        buffer[i]=static_cast<Tout>(tmp[i]);
    }
}
#endif // TINYTIFFREADER_HXX