long_tag.c

/*
 * 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 LONG tags read/write functions.
 */

#include "tif_config.h"

#include <stdio.h>

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

#include "tiffio.h"

extern int CheckLongField(TIFF *, ttag_t, uint32_t);

const char *filename = "long_test.tiff";

static struct Tags
{
    ttag_t tag;
    short count;
    uint32_t value;
} long_tags[] = {{TIFFTAG_SUBFILETYPE, 1,
                  FILETYPE_REDUCEDIMAGE | FILETYPE_PAGE | FILETYPE_MASK}};
#define NTAGS (sizeof(long_tags) / sizeof(long_tags[0]))

const uint32_t width = 1;
const uint32_t length = 1;
const uint32_t rows_per_strip = 1;

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

    /* 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, width))
    {
        fprintf(stderr, "Can't set ImageWidth tag.\n");
        goto failure;
    }
    if (!TIFFSetField(tif, TIFFTAG_IMAGELENGTH, length))
    {
        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_ROWSPERSTRIP, rows_per_strip))
    {
        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, long_tags[i].tag, long_tags[i].value))
        {
            fprintf(stderr, "Can't set tag %d.\n", (int)long_tags[i].tag);
            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;
    }

    if (CheckLongField(tif, TIFFTAG_IMAGEWIDTH, width) < 0)
        goto failure;

    if (CheckLongField(tif, TIFFTAG_IMAGELENGTH, length) < 0)
        goto failure;

    if (CheckLongField(tif, TIFFTAG_ROWSPERSTRIP, rows_per_strip) < 0)
        goto failure;

    for (i = 0; i < NTAGS; i++)
    {
        if (CheckLongField(tif, long_tags[i].tag, long_tags[i].value) < 0)
            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;
}