defer_strile_writing.c

/*
 * Copyright (c) 2019, Even Rouault <even.rouault at spatialys.com>
 *
 * 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 TIFFDeferStrileArrayWriting and TIFFForceStrileArrayWriting
 */

#include "tif_config.h"

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

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

#include "tiffio.h"

int test(const char *mode, int tiled, int height)
{
    const char *filename = "defer_strile_writing.tif";
    TIFF *tif;
    int i;
    int ret = 0;
    (void)ret;

    tif = TIFFOpen(filename, mode);
    if (!tif)
    {
        fprintf(stderr, "cannot create %s\n", filename);
        return 1;
    }
    ret = TIFFSetField(tif, TIFFTAG_COMPRESSION, COMPRESSION_NONE);
    assert(ret);
    ret = TIFFSetField(tif, TIFFTAG_IMAGEWIDTH, 1);
    assert(ret);
    ret = TIFFSetField(tif, TIFFTAG_IMAGELENGTH, height);
    assert(ret);
    ret = TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, 8);
    assert(ret);
    ret = TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, 1);
    assert(ret);
    ret = TIFFSetField(tif, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
    assert(ret);

    if (tiled)
    {
        ret = TIFFSetField(tif, TIFFTAG_TILEWIDTH, 16);
        assert(ret);
        ret = TIFFSetField(tif, TIFFTAG_TILELENGTH, 16);
        assert(ret);
    }
    else
    {
        ret = TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP, 1);
        assert(ret);
    }

    ret = TIFFDeferStrileArrayWriting(tif);
    assert(ret);

    ret = TIFFWriteCheck(tif, tiled, "test");
    assert(ret);

    ret = TIFFWriteDirectory(tif);
    assert(ret);

    /* Create other directory */
    TIFFFreeDirectory(tif);
    TIFFCreateDirectory(tif);

    ret = TIFFSetField(tif, TIFFTAG_SUBFILETYPE, FILETYPE_PAGE);
    assert(ret);
    ret = TIFFSetField(tif, TIFFTAG_COMPRESSION, COMPRESSION_NONE);
    assert(ret);
    ret = TIFFSetField(tif, TIFFTAG_IMAGEWIDTH, 1);
    assert(ret);
    ret = TIFFSetField(tif, TIFFTAG_IMAGELENGTH, 1);
    assert(ret);
    ret = TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, 8);
    assert(ret);
    ret = TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, 1);
    assert(ret);
    ret = TIFFSetField(tif, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
    assert(ret);
    ret = TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP, 1);
    assert(ret);

    ret = TIFFDeferStrileArrayWriting(tif);
    assert(ret);

    ret = TIFFWriteCheck(tif, 0, "test");
    assert(ret);

    ret = TIFFWriteDirectory(tif);
    assert(ret);

    /* Force writing of strile arrays */
    ret = TIFFSetDirectory(tif, 0);
    assert(ret);

    ret = TIFFForceStrileArrayWriting(tif);
    assert(ret);

    ret = TIFFSetDirectory(tif, 1);
    assert(ret);

    ret = TIFFForceStrileArrayWriting(tif);
    assert(ret);

    /* Now write data on first directory */
    ret = TIFFSetDirectory(tif, 0);
    assert(ret);

    if (tiled)
    {
        int j;
        for (j = 0; j < (height + 15) / 16; j++)
        {
            unsigned char tilebuffer[256];
            memset(tilebuffer, (unsigned char)j, 256);
            ret = TIFFWriteEncodedTile(tif, j, tilebuffer, 256);
            assert(ret == 256);
        }
    }
    else
    {
        for (i = 0; i < height; i++)
        {
            unsigned char c = (unsigned char)i;
            ret = TIFFWriteEncodedStrip(tif, i, &c, 1);
            assert(ret == 1);

            if (i == 1 && height > 100000)
                i = height - 2;
        }
    }

    TIFFClose(tif);

    tif = TIFFOpen(filename, "r");
    if (!tif)
    {
        fprintf(stderr, "cannot open %s\n", filename);
        return 1;
    }
    if (tiled)
    {
        int j;
        for (j = 0; j < (height + 15) / 16; j++)
        {
            int retry;
            for (retry = 0; retry < 2; retry++)
            {
                unsigned char tilebuffer[256];
                unsigned char expected_c = (unsigned char)j;
                memset(tilebuffer, 0, 256);
                ret = TIFFReadEncodedTile(tif, j, tilebuffer, 256);
                assert(ret == 256);
                if (tilebuffer[0] != expected_c ||
                    tilebuffer[255] != expected_c)
                {
                    fprintf(stderr, "unexpected value at tile %d: %d %d\n", j,
                            tilebuffer[0], tilebuffer[255]);
                    TIFFClose(tif);
                    return 1;
                }
            }
        }
    }
    else
    {
        int j;
        for (j = 0; j < height; j++)
        {
            int retry;
            for (retry = 0; retry < 2; retry++)
            {
                unsigned char c = 0;
                unsigned char expected_c = (unsigned char)j;
                ret = TIFFReadEncodedStrip(tif, j, &c, 1);
                assert(ret == 1);
                if (c != expected_c)
                {
                    fprintf(stderr, "unexpected value at line %d: %d\n", j, c);
                    TIFFClose(tif);
                    return 1;
                }
            }
        }
    }

    TIFFClose(tif);

    unlink(filename);
    return 0;
}

int main()
{
    int tiled;
    for (tiled = 0; tiled <= 1; tiled++)
    {
        if (test("w", tiled, 1))
            return 1;
        if (test("w", tiled, 10))
            return 1;
        if (test("w8", tiled, 1))
            return 1;
        if (test("wD", tiled, 1))
            return 1;
    }
    return 0;
}