tiffW.h

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/* This software and supporting documentation are distributed by
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 * This software is governed by the CeCILL-B license under
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 */
 
#ifndef AIMS_IO_TIFFW_H
#define AIMS_IO_TIFFW_H
 
#include <cstdlib>
#include <aims/io/tiffheader.h>
#include <aims/io/datatypecode.h>
#include <aims/data/pheader.h>
#include <aims/data/data.h>
#include <cartobase/exception/file.h>
#include <cartobase/exception/ioexcept.h>
#include <stdio.h>
extern "C"
{
#include <tiffio.h>
}
 
namespace aims
{
 
  template<class T>
  class TiffWriter
  {
  public:
    TiffWriter( const std::string& name ) : _name( name ) {}
    ~TiffWriter() {}
 
    void write( const AimsData<T> & thing );
    void writeFrame( const AimsData<T> & thing, const std::string & filename, 
                     unsigned zfame, unsigned tframe );
 
  private:
    std::string         _name;
  };
 
  template <class T>
  inline TiffWriter<T> & 
  operator << ( TiffWriter<T> & writer, const AimsData<T> & thing )
  {
    writer.write( thing );
    return writer;
  }
 
 
  template <class T>
  inline
  void TiffWriter<T>::write( const AimsData<T>& thing )
  {
    unsigned    t, z, dt = thing.dimT(), dz = thing.dimZ();
    TiffHeader  hdr( _name, carto::DataTypeCode<T>().dataType(), thing.dimX(), 
                     thing.dimY(), thing.dimZ(), thing.dimT(), thing.sizeX(), 
                     thing.sizeY(), thing.sizeZ(), thing.sizeT() );
    const PythonHeader 
      *ph = dynamic_cast<const PythonHeader *>( thing.header() );
    if( ph )
      hdr.copy( *ph );
 
    std::string                 dir = carto::FileUtil::dirname( _name );
    std::vector<std::string>    files = hdr.outputFilenames();
 
    hdr.setProperty( "file_type", std::string( "TIFF" ) );
    hdr.setProperty( "filenames", files );
    if( !dir.empty() )
      dir += carto::FileUtil::separator();
 
    unsigned    i = 0;
    for( t=0; t<dt; ++t )
      for( z=0; z<dz; ++z, ++i ) {
        writeFrame( thing, dir + files[i], z, t );
      }
 
    hdr.writeMinf( dir + carto::FileUtil::removeExtension( files[0] ) 
                   + hdr.extension() + ".minf" );
  }
 
  template<class T>
  inline
  void TiffWriter<T>::writeFrame( const AimsData<T> & data,
                                  const std::string & filename,
                                  unsigned z,
                                  unsigned t )
  {
    int bps, spp, photometric;
    // Define an image
    TIFF *tif;
 
    // Open the TIFF file
    if((tif = TIFFOpen(filename.c_str(), "w")) == NULL){
      std::cout << "Could not open '" << filename << "' for writing." << std::endl;
      throw carto::file_not_found_error( _name );
    }
 
    std::string name = carto::DataTypeCode<T>().name();
    uint16_t sampleformat = SAMPLEFORMAT_UINT;
 
    if ( name == "U8"  )
    {
      spp = 1;
      bps = 8;
      photometric = PHOTOMETRIC_MINISBLACK;
    }
    else if ( name == "S8"  )
    {
      spp = 1;
      bps = 8;
      photometric = PHOTOMETRIC_MINISBLACK;
      sampleformat = SAMPLEFORMAT_INT;
    }
    else if ( name == "U16"  )
    {
      spp = 1;
      bps = 16;
      photometric = PHOTOMETRIC_MINISBLACK;
    }
    else if ( name == "S16"  )
    {
      spp = 1;
      bps = 16;
      photometric = PHOTOMETRIC_MINISBLACK;
      sampleformat = SAMPLEFORMAT_INT;
    }
    else if ( name == "FLOAT"  )
    {
      spp = 1;
      bps = 32;
      photometric = PHOTOMETRIC_MINISBLACK;
      sampleformat = SAMPLEFORMAT_IEEEFP;
    }
    else if ( name == "DOUBLE"  )
    {
      spp = 1;
      bps = 64;
      photometric = PHOTOMETRIC_MINISBLACK;
      sampleformat = SAMPLEFORMAT_IEEEFP;
    }
    else if ( name == "CFLOAT"  )
    {
      spp = 2;
      bps = 32;
      photometric = PHOTOMETRIC_MINISBLACK;
      sampleformat = SAMPLEFORMAT_COMPLEXIEEEFP;
    }
    else if ( name == "CDOUBLE"  )
    {
      spp = 2;
      bps = 64;
      photometric = PHOTOMETRIC_MINISBLACK;
      sampleformat = SAMPLEFORMAT_COMPLEXIEEEFP;
    }
    else if ( name == "RGBA"  )
    {
      spp = 4;
      bps = 8;
      photometric = PHOTOMETRIC_RGB;
    }
    else
    {
      spp = 3;
      bps = 8;
      photometric = PHOTOMETRIC_RGB;
    }
 
//     std::cout << "Filename : " << filename << std::endl;
//     std::cout << "Type : " << name << ", Size : " << sizeof(T) << ", Spp : " << spp << ", Bps : " << bps << std::endl;
//     std::cout << "DimX : " << data.dimX() << ", DimY : " << data.dimY() << std::endl;
//     std::cout << "SizeX : " << data.sizeX() << ", SizeY : " << data.sizeY() << std::endl;
//     std::cout << "Photometric : " << photometric << std::endl;
 
    // We need to set some values for basic tags before we can add any data
    TIFFSetField(tif, TIFFTAG_IMAGEWIDTH, data.dimX() );
    TIFFSetField(tif, TIFFTAG_IMAGELENGTH, data.dimY());
    TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, bps);
    TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, spp );
    TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP, 1 );
 
    TIFFSetField(tif, TIFFTAG_PHOTOMETRIC, photometric);
    TIFFSetField(tif, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
 
    TIFFSetField(tif, TIFFTAG_XRESOLUTION, 10. / data.sizeX());
    TIFFSetField(tif, TIFFTAG_YRESOLUTION, 10. / data.sizeY());
    TIFFSetField(tif, TIFFTAG_RESOLUTIONUNIT, RESUNIT_CENTIMETER);
    TIFFSetField(tif, TIFFTAG_SAMPLEFORMAT, sampleformat);
 
    tsize_t res;
    int y, ny = data.dimY(), nx = data.dimX();
 
    long stride = &data( 1 ) - &data( 0 );
    std::vector<T> buffer;
    if( stride != 1 )
      // allocate buffer for un-strided data
      buffer.resize( nx );
    void *ptr;
 
    // Write the information to the file
    for( y=0; y<ny; ++y )
    {
      if( stride == 1 )
        ptr = (void *) &data(0, y, z, t);
      else
      {
        // stides along X axis: must copy things
        const T* p = &data( 0, y, z, t );
        for( long x=0; x<nx; ++x, p+=stride )
          buffer[x] = *p;
        ptr = (void *) &buffer[0];
      }
 
      res = TIFFWriteEncodedStrip(tif, y, ptr, (bps / 8) * spp * data.dimX() );
 
      if( res < 0 )
        throw carto::file_error( filename );
    }
 
    // Close the file
    TIFFClose(tif);
  }
}
 
#endif