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Frank Warmerdam
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test/rewrite_tag.c
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345
test/rewrite_tag.c
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/* $Id: rewrite_tag.c,v 1.1 2008-01-01 13:55:23 fwarmerdam Exp $ */
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/*
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* Copyright (c) 2007, Frank Warmerdam <warmerdam@pobox.com>
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*
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* Permission to use, copy, modify, distribute, and sell this software and
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* its documentation for any purpose is hereby granted without fee, provided
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* that (i) the above copyright notices and this permission notice appear in
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* all copies of the software and related documentation, and (ii) the names of
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* Sam Leffler and Silicon Graphics may not be used in any advertising or
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* publicity relating to the software without the specific, prior written
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* permission of Sam Leffler and Silicon Graphics.
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*
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* THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
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* WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
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*
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* IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
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* ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
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* OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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* WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
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* LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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* OF THIS SOFTWARE.
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*/
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/*
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* TIFF Library
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*
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* Module to test TIFFRewriteField().
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*/
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#include "tif_config.h"
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#include <stdio.h>
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#ifdef HAVE_UNISTD_H
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# include <unistd.h>
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#endif
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#include "tiffio.h"
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const uint32 width = 10;
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const uint32 length = 40;
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const uint32 rows_per_strip = 1;
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int test_packbits()
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{
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TIFF *tif;
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int i;
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unsigned char buf[10] = {0,0,0,0,0,0,0,0,0,0};
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int length = 20;
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const char *filename = "test_packbits.tif";
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/* Test whether we can write tags. */
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tif = TIFFOpen(filename, "w");
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if (!tif) {
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fprintf (stderr, "Can't create test TIFF file %s.\n", filename);
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return 1;
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}
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if (!TIFFSetField(tif, TIFFTAG_COMPRESSION, COMPRESSION_PACKBITS)) {
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fprintf (stderr, "Can't set Compression tag.\n");
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goto failure;
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}
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if (!TIFFSetField(tif, TIFFTAG_IMAGEWIDTH, width)) {
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fprintf (stderr, "Can't set ImageWidth tag.\n");
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goto failure;
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}
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if (!TIFFSetField(tif, TIFFTAG_IMAGELENGTH, length)) {
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fprintf (stderr, "Can't set ImageLength tag.\n");
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goto failure;
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}
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if (!TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, 8)) {
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fprintf (stderr, "Can't set BitsPerSample tag.\n");
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goto failure;
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}
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if (!TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, 1)) {
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fprintf (stderr, "Can't set SamplesPerPixel tag.\n");
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goto failure;
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}
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if (!TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP, rows_per_strip)) {
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fprintf (stderr, "Can't set SamplesPerPixel tag.\n");
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goto failure;
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}
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if (!TIFFSetField(tif, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG)) {
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fprintf (stderr, "Can't set PlanarConfiguration tag.\n");
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goto failure;
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}
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for (i = 0; i < length; i++ )
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{
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if( !TIFFWriteEncodedStrip( tif, i, buf, 10 ) )
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{
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fprintf (stderr, "Can't write image data.\n");
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goto failure;
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}
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}
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TIFFClose(tif);
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/* Test whether we can write tags. */
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tif = TIFFOpen(filename, "r+");
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if (!tif) {
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fprintf (stderr, "Can't create test TIFF file %s.\n", filename);
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return 1;
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}
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buf[3] = 17;
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buf[6] = 12;
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if( !TIFFWriteEncodedStrip( tif, 6, buf, 10 ) )
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{
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fprintf (stderr, "Can't write image data.\n");
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goto failure;
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}
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TIFFClose(tif);
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/* unlink(filename); */
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return 0;
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failure:
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/* Something goes wrong; close file and return unsuccessful status. */
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TIFFClose(tif);
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/* unlink(filename); */
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return 1;
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}
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/************************************************************************/
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/* rewrite_test() */
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/************************************************************************/
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int rewrite_test( const char *filename, int length, int bigtiff,
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uint64 base_value )
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{
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TIFF *tif;
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int i;
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unsigned char buf[10] = {5,6,7,8,9,10,11,12,13,14};
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uint64 *rowoffset, *rowbytes;
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uint64 *upd_rowoffset;
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uint32 *upd_bytecount;
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/* Test whether we can write tags. */
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if( bigtiff )
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tif = TIFFOpen(filename, "w8");
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else
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tif = TIFFOpen(filename, "w4");
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if (!tif) {
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fprintf (stderr, "Can't create test TIFF file %s.\n", filename);
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return 1;
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}
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if (!TIFFSetField(tif, TIFFTAG_COMPRESSION, COMPRESSION_PACKBITS)) {
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fprintf (stderr, "Can't set Compression tag.\n");
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goto failure;
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}
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if (!TIFFSetField(tif, TIFFTAG_IMAGEWIDTH, width)) {
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fprintf (stderr, "Can't set ImageWidth tag.\n");
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goto failure;
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}
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if (!TIFFSetField(tif, TIFFTAG_IMAGELENGTH, length)) {
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fprintf (stderr, "Can't set ImageLength tag.\n");
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goto failure;
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}
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if (!TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, 8)) {
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fprintf (stderr, "Can't set BitsPerSample tag.\n");
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goto failure;
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}
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if (!TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, 1)) {
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fprintf (stderr, "Can't set SamplesPerPixel tag.\n");
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goto failure;
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}
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if (!TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP, rows_per_strip)) {
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fprintf (stderr, "Can't set SamplesPerPixel tag.\n");
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goto failure;
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}
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if (!TIFFSetField(tif, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG)) {
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fprintf (stderr, "Can't set PlanarConfiguration tag.\n");
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goto failure;
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}
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for (i = 0; i < length; i++ )
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{
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if( !TIFFWriteScanline( tif, buf, i, 0 ) )
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{
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fprintf (stderr, "Can't write image data.\n");
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goto failure;
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}
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}
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TIFFClose(tif);
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/* Ok, now test whether we can read written values. */
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tif = TIFFOpen(filename, "r+");
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if (!tif) {
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fprintf (stderr, "Can't open test TIFF file %s.\n", filename);
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return 1;
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}
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if( !TIFFGetField( tif, TIFFTAG_STRIPOFFSETS, &rowoffset ) )
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{
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fprintf (stderr, "Can't fetch STRIPOFFSETS.\n");
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goto failure;
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}
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if( !TIFFGetField( tif, TIFFTAG_STRIPBYTECOUNTS, &rowbytes ) )
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{
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fprintf (stderr, "Can't fetch STRIPBYTECOUNTS.\n");
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goto failure;
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}
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upd_rowoffset = (uint64 *) _TIFFmalloc(sizeof(uint64) * length);
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for( i = 0; i < length; i++ )
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upd_rowoffset[i] = base_value + i*10;
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if( !TIFFRewriteField( tif, TIFFTAG_STRIPOFFSETS, TIFF_LONG8,
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length, upd_rowoffset ) )
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{
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fprintf (stderr, "Can't rewrite STRIPOFFSETS.\n");
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goto failure;
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}
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_TIFFfree( upd_rowoffset );
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upd_bytecount = (uint32 *) _TIFFmalloc(sizeof(uint32) * length);
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for( i = 0; i < length; i++ )
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upd_bytecount[i] = 100 + i*10;
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if( !TIFFRewriteField( tif, TIFFTAG_STRIPBYTECOUNTS, TIFF_LONG,
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length, upd_bytecount ) )
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{
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fprintf (stderr, "Can't rewrite STRIPBYTECOUNTS.\n");
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goto failure;
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}
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_TIFFfree( upd_bytecount );
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TIFFClose(tif);
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/* Reopen file and read back to verify contents */
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tif = TIFFOpen(filename, "r");
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if (!tif) {
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fprintf (stderr, "Can't open test TIFF file %s.\n", filename);
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return 1;
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}
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if( !TIFFGetField( tif, TIFFTAG_STRIPOFFSETS, &rowoffset ) )
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{
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fprintf (stderr, "Can't fetch STRIPOFFSETS.\n");
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goto failure;
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}
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for( i = 0; i < length; i++ )
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{
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uint64 expect = base_value + i*10;
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if( rowoffset[i] != expect )
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{
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fprintf( stderr,
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"%s:STRIPOFFSETS[%d]: Got %X:%08X instead of %X:%08X.\n",
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filename, i,
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(int) (rowoffset[i] >> 32),
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(int) (rowoffset[i]&0xFFFFFFFF),
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(int) (expect >> 32),
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(int) (expect & 0xFFFFFFFF) );
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goto failure;
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}
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}
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if( !TIFFGetField( tif, TIFFTAG_STRIPBYTECOUNTS, &rowbytes ) )
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{
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fprintf (stderr, "Can't fetch STRIPBYTECOUNTS.\n");
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goto failure;
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}
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for( i = 0; i < length; i++ )
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{
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uint64 expect = 100 + i*10;
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if( rowbytes[i] != expect )
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{
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fprintf( stderr,
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"%s:STRIPBYTECOUNTS[%d]: Got %X:%08X instead of %X:%08X.\n",
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filename, i,
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(int) (rowbytes[i] >> 32),
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(int) (rowbytes[i] & 0xFFFFFFFF),
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(int) (expect >> 32),
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(int) (expect & 0xFFFFFFFF) );
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goto failure;
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}
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}
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TIFFClose( tif );
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/* All tests passed; delete file and exit with success status. */
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unlink(filename);
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return 0;
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failure:
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/* Something goes wrong; close file and return unsuccessful status. */
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TIFFClose(tif);
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/* unlink(filename); */
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return 1;
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}
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/************************************************************************/
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/* main() */
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/************************************************************************/
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int
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main(int argc, char **argv)
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{
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(void) argc;
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(void) argv;
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int failure = 0;
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failure |= test_packbits();
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/* test fairly normal use */
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failure |= rewrite_test( "rewrite1.tif", 10, 0, 100 );
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failure |= rewrite_test( "rewrite2.tif", 10, 1, 100 );
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/* test case of fitting all in directory entry */
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failure |= rewrite_test( "rewrite3.tif", 1, 0, 100 );
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failure |= rewrite_test( "rewrite4.tif", 1, 1, 100 );
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/* test with very large values that don't fit in 4bytes (bigtiff only) */
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failure |= rewrite_test( "rewrite5.tif", 1000, 1, 0x6000000000 );
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failure |= rewrite_test( "rewrite6.tif", 1, 1, 0x6000000000 );
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return failure;
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}
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/* vim: set ts=8 sts=8 sw=8 noet: */
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