/* $Id: ascii_tag.c,v 1.7 2008/04/15 13:32:12 dron Exp $ */

/*

 * Copyright (c) 2004, Andrey Kiselev  <dron@ak4719.spb.edu></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></stdio.h>

#include <string.h></string.h>

#ifdef HAVE_UNISTD_H 

# include <unistd.h> </unistd.h>

#endif 

#include "tiffio.h"

static const char filename[] = "ascii_test.tiff";

static const struct {

	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_COPYRIGHT, "Copyright (c) 2004, Andrey Kiselev" },

	{ TIFFTAG_FAXSUBADDRESS, "Fax subaddress" },

	/* DGN tags */

	{ TIFFTAG_UNIQUECAMERAMODEL, "No camera" },

	{ TIFFTAG_CAMERASERIALNUMBER, "1234567890" }

};

#define NTAGS   (sizeof (ascii_tags) / sizeof (ascii_tags[0]))

static const char ink_names[] = "Red\0Green\0Blue";

const int ink_names_size = 15;

int

main()

{

	TIFF		*tif;

	size_t		i;

	unsigned char	buf[] = { 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, sizeof(buf))) {

		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 %lu.\n",

				(unsigned long)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 (NUMBEROFINKS).\n",

                         TIFFTAG_NUMBEROFINKS);

		goto failure;

	}

	if (!TIFFSetField(tif, TIFFTAG_INKNAMES, ink_names_size, ink_names)) {

		fprintf (stderr, "Can't set tag %d (INKNAMES).\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 %lu.\n",

				(unsigned long)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 (INKNAMES).\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.

	 * Do not remove the file for further manual investigation.

	 */

	TIFFClose(tif);

	return 1;

}

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