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ascii_tag.c

/* $Id: ascii_tag.c,v 1.5 2006/03/23 14:54:02 dron Exp $ */

/*
 * Copyright (c) 2004, Andrey Kiselev  <dron@ak4719.spb.edu>
 *
 * Permission to use, copy, modify, distribute, and sell this software and 
 * its documentation for any purpose is hereby granted without fee, provided
 * that (i) the above copyright notices and this permission notice appear in
 * all copies of the software and related documentation, and (ii) the names of
 * Sam Leffler and Silicon Graphics may not be used in any advertising or
 * publicity relating to the software without the specific, prior written
 * permission of Sam Leffler and Silicon Graphics.
 * 
 * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, 
 * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY 
 * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.  
 * 
 * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
 * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
 * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
 * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF 
 * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE 
 * OF THIS SOFTWARE.
 */

/*
 * TIFF Library
 *
 * Module to test ASCII tags read/write functions.
 */

#include "tif_config.h"

#include <stdio.h>
#include <string.h>

#ifdef HAVE_UNISTD_H 
# include <unistd.h> 
#endif 

#include "tiffio.h"

const char  *filename = "ascii_test.tiff";

static struct Tags {
      ttag_t            tag;
      const char  *value;
} ascii_tags[] = {
      { TIFFTAG_DOCUMENTNAME, "Test TIFF image" },
      { TIFFTAG_IMAGEDESCRIPTION, "Temporary test image" },
      { TIFFTAG_MAKE, "This is not scanned image" },
      { TIFFTAG_MODEL, "No scanner" },
      { TIFFTAG_PAGENAME, "Test page" },
      { TIFFTAG_SOFTWARE, "Libtiff library" },
      { TIFFTAG_DATETIME, "2004:09:10 16:09:00" },
      { TIFFTAG_ARTIST, "Andrey V. Kiselev" },
      { TIFFTAG_HOSTCOMPUTER, "Debian GNU/Linux (Sarge)" },
      { TIFFTAG_TARGETPRINTER, "No printer" },
      { TIFFTAG_PIXAR_TEXTUREFORMAT, "No texture" },
      { TIFFTAG_PIXAR_WRAPMODES, "No wrap" },
      { TIFFTAG_COPYRIGHT, "Copyright (c) 2004, Andrey Kiselev" }
};
#define NTAGS   (sizeof (ascii_tags) / sizeof (ascii_tags[0]))

const char *ink_names = "Red\0Green\0Blue";
const int ink_names_size = 15;

int
main(int argc, char **argv)
{
      TIFF        *tif;
      int         i;
      unsigned char     buf[3] = { 0, 127, 255 };
      char        *value;

      /* Test whether we can write tags. */
      tif = TIFFOpen(filename, "w");
      if (!tif) {
            fprintf (stderr, "Can't create test TIFF file %s.\n", filename);
            return 1;
      }

      if (!TIFFSetField(tif, TIFFTAG_IMAGEWIDTH, 1)) {
            fprintf (stderr, "Can't set ImageWidth tag.\n");
            goto failure;
      }
      if (!TIFFSetField(tif, TIFFTAG_IMAGELENGTH, 1)) {
            fprintf (stderr, "Can't set ImageLength tag.\n");
            goto failure;
      }
      if (!TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, 8)) {
            fprintf (stderr, "Can't set BitsPerSample tag.\n");
            goto failure;
      }
      if (!TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, 3)) {
            fprintf (stderr, "Can't set SamplesPerPixel tag.\n");
            goto failure;
      }
      if (!TIFFSetField(tif, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG)) {
            fprintf (stderr, "Can't set PlanarConfiguration tag.\n");
            goto failure;
      }
      if (!TIFFSetField(tif, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_RGB)) {
            fprintf (stderr, "Can't set PhotometricInterpretation tag.\n");
            goto failure;
      }

      for (i = 0; i < NTAGS; i++) {
            if (!TIFFSetField(tif, ascii_tags[i].tag,
                          ascii_tags[i].value)) {
                  fprintf(stderr, "Can't set tag %d.\n",
                        (int)ascii_tags[i].tag);
                  goto failure;
            }
      }

      /* InkNames tag has special form, so we handle it separately. */
      if (!TIFFSetField(tif, TIFFTAG_NUMBEROFINKS, 3)) {
            fprintf (stderr, "Can't set tag %d.\n", TIFFTAG_NUMBEROFINKS);
            goto failure;
      }
      if (!TIFFSetField(tif, TIFFTAG_INKNAMES, ink_names_size, ink_names)) {
            fprintf (stderr, "Can't set tag %d.\n", TIFFTAG_INKNAMES);
            goto failure;
      }

      /* Write dummy pixel data. */
      if (!TIFFWriteScanline(tif, buf, 0, 0) < 0) {
            fprintf (stderr, "Can't write image data.\n");
            goto failure;
      }

      TIFFClose(tif);
      
      /* Ok, now test whether we can read written values. */
      tif = TIFFOpen(filename, "r");
      if (!tif) {
            fprintf (stderr, "Can't open test TIFF file %s.\n", filename);
            return 1;
      }

      for (i = 0; i < NTAGS; i++) {
            if (!TIFFGetField(tif, ascii_tags[i].tag, &value)
                || strcmp(value, ascii_tags[i].value)) {
                  fprintf(stderr, "Can't get tag %d.\n",
                        (int)ascii_tags[i].tag);
                  goto failure;
            }
      }

      if (!TIFFGetField(tif, TIFFTAG_INKNAMES, &value)
          || memcmp(value, ink_names, ink_names_size)) {
            fprintf (stderr, "Can't get tag %d.\n", TIFFTAG_INKNAMES);
            goto failure;
      }

      TIFFClose(tif);
      
      /* All tests passed; delete file and exit with success status. */
      unlink(filename);
      return 0;

failure:
      /* Something goes wrong; close file and return unsuccessful status. */
      TIFFClose(tif);
      unlink(filename);
      return 1;
}

/* vim: set ts=8 sts=8 sw=8 noet: */

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