/*
 * 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"

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 %" PRIu32 ".\n", 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) == -1)
    {
        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 %" PRIu32 ".\n", 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;
}