g3r.cpp

// This library is distributed under the conditions of the GNU LGPL.
 
#include "config.h"
 
#ifdef HAVE_LIBTIFF
 
#include <tiffio.h>
 
#include <tqimage.h>
#include <tqfile.h>
 
#include "g3r.h"
 
TDE_EXPORT void kimgio_g3_read( TQImageIO *io )
{
    // This won't work if io is not a TQFile !
  TIFF *tiff = TIFFOpen(TQFile::encodeName(io->fileName()), "r");  
  if (!tiff)
    return;
 
  uint32 width, height;
  tsize_t scanlength;
 
  if( TIFFGetField( tiff, TIFFTAG_IMAGEWIDTH, &width ) != 1
      || TIFFGetField( tiff, TIFFTAG_IMAGELENGTH, &height ) != 1 )
      return;
  scanlength = TIFFScanlineSize(tiff);
 
  TQImage image(width, height, 1, 0, TQImage::BigEndian);
  
  if (image.isNull() || scanlength != image.bytesPerLine())
    {
      TIFFClose(tiff);
      return;
    }
 
  for (uint32 y=0; y < height; y++)
    TIFFReadScanline(tiff, image.scanLine(y), y);
 
  TIFFClose(tiff);
  
  io->setImage(image);
  io->setStatus(0);
}
 
 
TDE_EXPORT void kimgio_g3_write(TQImageIO *)
{
    // TODO: stub
}
 
 
#endif