1 /* $Id: tiffcmp.c,v 1.18 2015-06-21 01:09:10 bfriesen Exp $ */
2
3 /*
4 * Copyright (c) 1988-1997 Sam Leffler
5 * Copyright (c) 1991-1997 Silicon Graphics, Inc.
6 *
7 * Permission to use, copy, modify, distribute, and sell this software and
8 * its documentation for any purpose is hereby granted without fee, provided
9 * that (i) the above copyright notices and this permission notice appear in
10 * all copies of the software and related documentation, and (ii) the names of
11 * Sam Leffler and Silicon Graphics may not be used in any advertising or
12 * publicity relating to the software without the specific, prior written
13 * permission of Sam Leffler and Silicon Graphics.
14 *
15 * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
17 * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
18 *
19 * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
20 * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
21 * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
22 * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
23 * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
24 * OF THIS SOFTWARE.
25 */
26
27 #include "tif_config.h"
28
29 #include <stdio.h>
30 #include <stdlib.h>
31 #include <string.h>
32 #include <math.h>
33
34 #ifdef HAVE_UNISTD_H
35 # include <unistd.h>
36 #endif
37
38 #ifdef NEED_LIBPORT
39 # include "libport.h"
40 #endif
41
42 #include "tiffio.h"
43
44 #ifndef HAVE_GETOPT
45 extern int getopt(int, char**, char*);
46 #endif
47
48 static int stopondiff = 1;
49 static int stoponfirsttag = 1;
50 static uint16 bitspersample = 1;
51 static uint16 samplesperpixel = 1;
52 static uint16 sampleformat = SAMPLEFORMAT_UINT;
53 static uint32 imagewidth;
54 static uint32 imagelength;
55
56 static void usage(void);
57 static int tiffcmp(TIFF*, TIFF*);
58 static int cmptags(TIFF*, TIFF*);
59 static int ContigCompare(int, uint32, unsigned char*, unsigned char*, tsize_t);
60 static int SeparateCompare(int, int, uint32, unsigned char*, unsigned char*);
61 static void PrintIntDiff(uint32, int, uint32, uint32, uint32);
62 static void PrintFloatDiff(uint32, int, uint32, double, double);
63
64 static void leof(const char*, uint32, int);
65
66 int
main(int argc,char * argv[])67 main(int argc, char* argv[])
68 {
69 TIFF *tif1, *tif2;
70 int c, dirnum;
71 #if !HAVE_DECL_OPTARG
72 extern int optind;
73 extern char* optarg;
74 #endif
75
76 while ((c = getopt(argc, argv, "ltz:")) != -1)
77 switch (c) {
78 case 'l':
79 stopondiff = 0;
80 break;
81 case 'z':
82 stopondiff = atoi(optarg);
83 break;
84 case 't':
85 stoponfirsttag = 0;
86 break;
87 case '?':
88 usage();
89 /*NOTREACHED*/
90 }
91 if (argc - optind < 2)
92 usage();
93 tif1 = TIFFOpen(argv[optind], "r");
94 if (tif1 == NULL)
95 return (-1);
96 tif2 = TIFFOpen(argv[optind+1], "r");
97 if (tif2 == NULL)
98 return (-2);
99 dirnum = 0;
100 while (tiffcmp(tif1, tif2)) {
101 if (!TIFFReadDirectory(tif1)) {
102 if (!TIFFReadDirectory(tif2))
103 break;
104 printf("No more directories for %s\n",
105 TIFFFileName(tif1));
106 return (1);
107 } else if (!TIFFReadDirectory(tif2)) {
108 printf("No more directories for %s\n",
109 TIFFFileName(tif2));
110 return (1);
111 }
112 printf("Directory %d:\n", ++dirnum);
113 }
114
115 TIFFClose(tif1);
116 TIFFClose(tif2);
117 return (0);
118 }
119
120 char* stuff[] = {
121 "usage: tiffcmp [options] file1 file2",
122 "where options are:",
123 " -l list each byte of image data that differs between the files",
124 " -z # list specified number of bytes that differs between the files",
125 " -t ignore any differences in directory tags",
126 NULL
127 };
128
129 static void
usage(void)130 usage(void)
131 {
132 char buf[BUFSIZ];
133 int i;
134
135 setbuf(stderr, buf);
136 fprintf(stderr, "%s\n\n", TIFFGetVersion());
137 for (i = 0; stuff[i] != NULL; i++)
138 fprintf(stderr, "%s\n", stuff[i]);
139 exit(-1);
140 }
141
142 #define checkEOF(tif, row, sample) { \
143 leof(TIFFFileName(tif), row, sample); \
144 goto bad; \
145 }
146
147 static int CheckShortTag(TIFF*, TIFF*, int, char*);
148 static int CheckShort2Tag(TIFF*, TIFF*, int, char*);
149 static int CheckShortArrayTag(TIFF*, TIFF*, int, char*);
150 static int CheckLongTag(TIFF*, TIFF*, int, char*);
151 static int CheckFloatTag(TIFF*, TIFF*, int, char*);
152 static int CheckStringTag(TIFF*, TIFF*, int, char*);
153
154 static int
tiffcmp(TIFF * tif1,TIFF * tif2)155 tiffcmp(TIFF* tif1, TIFF* tif2)
156 {
157 uint16 config1, config2;
158 tsize_t size1;
159 uint32 row;
160 tsample_t s;
161 unsigned char *buf1, *buf2;
162
163 if (!CheckShortTag(tif1, tif2, TIFFTAG_BITSPERSAMPLE, "BitsPerSample"))
164 return (0);
165 if (!CheckShortTag(tif1, tif2, TIFFTAG_SAMPLESPERPIXEL, "SamplesPerPixel"))
166 return (0);
167 if (!CheckLongTag(tif1, tif2, TIFFTAG_IMAGEWIDTH, "ImageWidth"))
168 return (0);
169 if (!cmptags(tif1, tif2))
170 return (1);
171 (void) TIFFGetField(tif1, TIFFTAG_BITSPERSAMPLE, &bitspersample);
172 (void) TIFFGetField(tif1, TIFFTAG_SAMPLESPERPIXEL, &samplesperpixel);
173 (void) TIFFGetField(tif1, TIFFTAG_SAMPLEFORMAT, &sampleformat);
174 (void) TIFFGetField(tif1, TIFFTAG_IMAGEWIDTH, &imagewidth);
175 (void) TIFFGetField(tif1, TIFFTAG_IMAGELENGTH, &imagelength);
176 (void) TIFFGetField(tif1, TIFFTAG_PLANARCONFIG, &config1);
177 (void) TIFFGetField(tif2, TIFFTAG_PLANARCONFIG, &config2);
178 buf1 = (unsigned char *)_TIFFmalloc(size1 = TIFFScanlineSize(tif1));
179 buf2 = (unsigned char *)_TIFFmalloc(TIFFScanlineSize(tif2));
180 if (buf1 == NULL || buf2 == NULL) {
181 fprintf(stderr, "No space for scanline buffers\n");
182 exit(-1);
183 }
184 if (config1 != config2 && bitspersample != 8 && samplesperpixel > 1) {
185 fprintf(stderr,
186 "Can't handle different planar configuration w/ different bits/sample\n");
187 goto bad;
188 }
189 #define pack(a,b) ((a)<<8)|(b)
190 switch (pack(config1, config2)) {
191 case pack(PLANARCONFIG_SEPARATE, PLANARCONFIG_CONTIG):
192 for (row = 0; row < imagelength; row++) {
193 if (TIFFReadScanline(tif2, buf2, row, 0) < 0)
194 checkEOF(tif2, row, -1)
195 for (s = 0; s < samplesperpixel; s++) {
196 if (TIFFReadScanline(tif1, buf1, row, s) < 0)
197 checkEOF(tif1, row, s)
198 if (SeparateCompare(1, s, row, buf2, buf1) < 0)
199 goto bad1;
200 }
201 }
202 break;
203 case pack(PLANARCONFIG_CONTIG, PLANARCONFIG_SEPARATE):
204 for (row = 0; row < imagelength; row++) {
205 if (TIFFReadScanline(tif1, buf1, row, 0) < 0)
206 checkEOF(tif1, row, -1)
207 for (s = 0; s < samplesperpixel; s++) {
208 if (TIFFReadScanline(tif2, buf2, row, s) < 0)
209 checkEOF(tif2, row, s)
210 if (SeparateCompare(0, s, row, buf1, buf2) < 0)
211 goto bad1;
212 }
213 }
214 break;
215 case pack(PLANARCONFIG_SEPARATE, PLANARCONFIG_SEPARATE):
216 for (s = 0; s < samplesperpixel; s++)
217 for (row = 0; row < imagelength; row++) {
218 if (TIFFReadScanline(tif1, buf1, row, s) < 0)
219 checkEOF(tif1, row, s)
220 if (TIFFReadScanline(tif2, buf2, row, s) < 0)
221 checkEOF(tif2, row, s)
222 if (ContigCompare(s, row, buf1, buf2, size1) < 0)
223 goto bad1;
224 }
225 break;
226 case pack(PLANARCONFIG_CONTIG, PLANARCONFIG_CONTIG):
227 for (row = 0; row < imagelength; row++) {
228 if (TIFFReadScanline(tif1, buf1, row, 0) < 0)
229 checkEOF(tif1, row, -1)
230 if (TIFFReadScanline(tif2, buf2, row, 0) < 0)
231 checkEOF(tif2, row, -1)
232 if (ContigCompare(-1, row, buf1, buf2, size1) < 0)
233 goto bad1;
234 }
235 break;
236 }
237 if (buf1) _TIFFfree(buf1);
238 if (buf2) _TIFFfree(buf2);
239 return (1);
240 bad:
241 if (stopondiff)
242 exit(1);
243 bad1:
244 if (buf1) _TIFFfree(buf1);
245 if (buf2) _TIFFfree(buf2);
246 return (0);
247 }
248
249 #define CmpShortField(tag, name) \
250 if (!CheckShortTag(tif1, tif2, tag, name) && stoponfirsttag) return (0)
251 #define CmpShortField2(tag, name) \
252 if (!CheckShort2Tag(tif1, tif2, tag, name) && stoponfirsttag) return (0)
253 #define CmpLongField(tag, name) \
254 if (!CheckLongTag(tif1, tif2, tag, name) && stoponfirsttag) return (0)
255 #define CmpFloatField(tag, name) \
256 if (!CheckFloatTag(tif1, tif2, tag, name) && stoponfirsttag) return (0)
257 #define CmpStringField(tag, name) \
258 if (!CheckStringTag(tif1, tif2, tag, name) && stoponfirsttag) return (0)
259 #define CmpShortArrayField(tag, name) \
260 if (!CheckShortArrayTag(tif1, tif2, tag, name) && stoponfirsttag) return (0)
261
262 static int
cmptags(TIFF * tif1,TIFF * tif2)263 cmptags(TIFF* tif1, TIFF* tif2)
264 {
265 uint16 compression1, compression2;
266 CmpLongField(TIFFTAG_SUBFILETYPE, "SubFileType");
267 CmpLongField(TIFFTAG_IMAGEWIDTH, "ImageWidth");
268 CmpLongField(TIFFTAG_IMAGELENGTH, "ImageLength");
269 CmpShortField(TIFFTAG_BITSPERSAMPLE, "BitsPerSample");
270 CmpShortField(TIFFTAG_COMPRESSION, "Compression");
271 CmpShortField(TIFFTAG_PREDICTOR, "Predictor");
272 CmpShortField(TIFFTAG_PHOTOMETRIC, "PhotometricInterpretation");
273 CmpShortField(TIFFTAG_THRESHHOLDING, "Thresholding");
274 CmpShortField(TIFFTAG_FILLORDER, "FillOrder");
275 CmpShortField(TIFFTAG_ORIENTATION, "Orientation");
276 CmpShortField(TIFFTAG_SAMPLESPERPIXEL, "SamplesPerPixel");
277 CmpShortField(TIFFTAG_MINSAMPLEVALUE, "MinSampleValue");
278 CmpShortField(TIFFTAG_MAXSAMPLEVALUE, "MaxSampleValue");
279 CmpShortField(TIFFTAG_SAMPLEFORMAT, "SampleFormat");
280 CmpFloatField(TIFFTAG_XRESOLUTION, "XResolution");
281 CmpFloatField(TIFFTAG_YRESOLUTION, "YResolution");
282 if( TIFFGetField(tif1, TIFFTAG_COMPRESSION, &compression1) &&
283 compression1 == COMPRESSION_CCITTFAX3 &&
284 TIFFGetField(tif2, TIFFTAG_COMPRESSION, &compression2) &&
285 compression2 == COMPRESSION_CCITTFAX3 )
286 {
287 CmpLongField(TIFFTAG_GROUP3OPTIONS, "Group3Options");
288 }
289 if( TIFFGetField(tif1, TIFFTAG_COMPRESSION, &compression1) &&
290 compression1 == COMPRESSION_CCITTFAX4 &&
291 TIFFGetField(tif2, TIFFTAG_COMPRESSION, &compression2) &&
292 compression2 == COMPRESSION_CCITTFAX4 )
293 {
294 CmpLongField(TIFFTAG_GROUP4OPTIONS, "Group4Options");
295 }
296 CmpShortField(TIFFTAG_RESOLUTIONUNIT, "ResolutionUnit");
297 CmpShortField(TIFFTAG_PLANARCONFIG, "PlanarConfiguration");
298 CmpLongField(TIFFTAG_ROWSPERSTRIP, "RowsPerStrip");
299 CmpFloatField(TIFFTAG_XPOSITION, "XPosition");
300 CmpFloatField(TIFFTAG_YPOSITION, "YPosition");
301 CmpShortField(TIFFTAG_GRAYRESPONSEUNIT, "GrayResponseUnit");
302 CmpShortField(TIFFTAG_COLORRESPONSEUNIT, "ColorResponseUnit");
303 #ifdef notdef
304 { uint16 *graycurve;
305 CmpField(TIFFTAG_GRAYRESPONSECURVE, graycurve);
306 }
307 { uint16 *red, *green, *blue;
308 CmpField3(TIFFTAG_COLORRESPONSECURVE, red, green, blue);
309 }
310 { uint16 *red, *green, *blue;
311 CmpField3(TIFFTAG_COLORMAP, red, green, blue);
312 }
313 #endif
314 CmpShortField2(TIFFTAG_PAGENUMBER, "PageNumber");
315 CmpStringField(TIFFTAG_ARTIST, "Artist");
316 CmpStringField(TIFFTAG_IMAGEDESCRIPTION,"ImageDescription");
317 CmpStringField(TIFFTAG_MAKE, "Make");
318 CmpStringField(TIFFTAG_MODEL, "Model");
319 CmpStringField(TIFFTAG_SOFTWARE, "Software");
320 CmpStringField(TIFFTAG_DATETIME, "DateTime");
321 CmpStringField(TIFFTAG_HOSTCOMPUTER, "HostComputer");
322 CmpStringField(TIFFTAG_PAGENAME, "PageName");
323 CmpStringField(TIFFTAG_DOCUMENTNAME, "DocumentName");
324 CmpShortField(TIFFTAG_MATTEING, "Matteing");
325 CmpShortArrayField(TIFFTAG_EXTRASAMPLES,"ExtraSamples");
326 return (1);
327 }
328
329 static int
ContigCompare(int sample,uint32 row,unsigned char * p1,unsigned char * p2,tsize_t size)330 ContigCompare(int sample, uint32 row,
331 unsigned char* p1, unsigned char* p2, tsize_t size)
332 {
333 uint32 pix;
334 int ppb = 8 / bitspersample;
335 int samples_to_test;
336
337 if (memcmp(p1, p2, size) == 0)
338 return 0;
339
340 samples_to_test = (sample == -1) ? samplesperpixel : 1;
341
342 switch (bitspersample) {
343 case 1: case 2: case 4: case 8:
344 {
345 unsigned char *pix1 = p1, *pix2 = p2;
346
347 for (pix = 0; pix < imagewidth; pix += ppb) {
348 int s;
349
350 for(s = 0; s < samples_to_test; s++) {
351 if (*pix1 != *pix2) {
352 if( sample == -1 )
353 PrintIntDiff(row, s, pix, *pix1, *pix2);
354 else
355 PrintIntDiff(row, sample, pix, *pix1, *pix2);
356 }
357
358 pix1++;
359 pix2++;
360 }
361 }
362 break;
363 }
364 case 16:
365 {
366 uint16 *pix1 = (uint16 *)p1, *pix2 = (uint16 *)p2;
367
368 for (pix = 0; pix < imagewidth; pix++) {
369 int s;
370
371 for(s = 0; s < samples_to_test; s++) {
372 if (*pix1 != *pix2)
373 PrintIntDiff(row, sample, pix, *pix1, *pix2);
374
375 pix1++;
376 pix2++;
377 }
378 }
379 break;
380 }
381 case 32:
382 if (sampleformat == SAMPLEFORMAT_UINT
383 || sampleformat == SAMPLEFORMAT_INT) {
384 uint32 *pix1 = (uint32 *)p1, *pix2 = (uint32 *)p2;
385
386 for (pix = 0; pix < imagewidth; pix++) {
387 int s;
388
389 for(s = 0; s < samples_to_test; s++) {
390 if (*pix1 != *pix2) {
391 PrintIntDiff(row, sample, pix,
392 *pix1, *pix2);
393 }
394
395 pix1++;
396 pix2++;
397 }
398 }
399 } else if (sampleformat == SAMPLEFORMAT_IEEEFP) {
400 float *pix1 = (float *)p1, *pix2 = (float *)p2;
401
402 for (pix = 0; pix < imagewidth; pix++) {
403 int s;
404
405 for(s = 0; s < samples_to_test; s++) {
406 if (fabs(*pix1 - *pix2) < 0.000000000001) {
407 PrintFloatDiff(row, sample, pix,
408 *pix1, *pix2);
409 }
410
411 pix1++;
412 pix2++;
413 }
414 }
415 } else {
416 fprintf(stderr, "Sample format %d is not supported.\n",
417 sampleformat);
418 return -1;
419 }
420 break;
421 default:
422 fprintf(stderr, "Bit depth %d is not supported.\n", bitspersample);
423 return -1;
424 }
425
426 return 0;
427 }
428
429 static void
PrintIntDiff(uint32 row,int sample,uint32 pix,uint32 w1,uint32 w2)430 PrintIntDiff(uint32 row, int sample, uint32 pix, uint32 w1, uint32 w2)
431 {
432 if (sample < 0)
433 sample = 0;
434 switch (bitspersample) {
435 case 1:
436 case 2:
437 case 4:
438 {
439 int32 mask1, mask2, s;
440
441 mask1 = ~((-1) << bitspersample);
442 s = (8 - bitspersample);
443 mask2 = mask1 << s;
444 for (; mask2 && pix < imagewidth;
445 mask2 >>= bitspersample, s -= bitspersample, pix++) {
446 if ((w1 & mask2) ^ (w2 & mask2)) {
447 printf(
448 "Scanline %lu, pixel %lu, sample %d: %01x %01x\n",
449 (unsigned long) row,
450 (unsigned long) pix,
451 sample,
452 (unsigned int)((w1 >> s) & mask1),
453 (unsigned int)((w2 >> s) & mask1));
454 if (--stopondiff == 0)
455 exit(1);
456 }
457 }
458 break;
459 }
460 case 8:
461 printf("Scanline %lu, pixel %lu, sample %d: %02x %02x\n",
462 (unsigned long) row, (unsigned long) pix, sample,
463 (unsigned int) w1, (unsigned int) w2);
464 if (--stopondiff == 0)
465 exit(1);
466 break;
467 case 16:
468 printf("Scanline %lu, pixel %lu, sample %d: %04x %04x\n",
469 (unsigned long) row, (unsigned long) pix, sample,
470 (unsigned int) w1, (unsigned int) w2);
471 if (--stopondiff == 0)
472 exit(1);
473 break;
474 case 32:
475 printf("Scanline %lu, pixel %lu, sample %d: %08x %08x\n",
476 (unsigned long) row, (unsigned long) pix, sample,
477 (unsigned int) w1, (unsigned int) w2);
478 if (--stopondiff == 0)
479 exit(1);
480 break;
481 default:
482 break;
483 }
484 }
485
486 static void
PrintFloatDiff(uint32 row,int sample,uint32 pix,double w1,double w2)487 PrintFloatDiff(uint32 row, int sample, uint32 pix, double w1, double w2)
488 {
489 if (sample < 0)
490 sample = 0;
491 switch (bitspersample) {
492 case 32:
493 printf("Scanline %lu, pixel %lu, sample %d: %g %g\n",
494 (long) row, (long) pix, sample, w1, w2);
495 if (--stopondiff == 0)
496 exit(1);
497 break;
498 default:
499 break;
500 }
501 }
502
503 static int
SeparateCompare(int reversed,int sample,uint32 row,unsigned char * cp1,unsigned char * p2)504 SeparateCompare(int reversed, int sample, uint32 row,
505 unsigned char* cp1, unsigned char* p2)
506 {
507 uint32 npixels = imagewidth;
508 int pixel;
509
510 cp1 += sample;
511 for (pixel = 0; npixels-- > 0; pixel++, cp1 += samplesperpixel, p2++) {
512 if (*cp1 != *p2) {
513 printf("Scanline %lu, pixel %lu, sample %ld: ",
514 (long) row, (long) pixel, (long) sample);
515 if (reversed)
516 printf("%02x %02x\n", *p2, *cp1);
517 else
518 printf("%02x %02x\n", *cp1, *p2);
519 if (--stopondiff == 0)
520 exit(1);
521 }
522 }
523
524 return 0;
525 }
526
527 static int
checkTag(TIFF * tif1,TIFF * tif2,int tag,char * name,void * p1,void * p2)528 checkTag(TIFF* tif1, TIFF* tif2, int tag, char* name, void* p1, void* p2)
529 {
530
531 if (TIFFGetField(tif1, tag, p1)) {
532 if (!TIFFGetField(tif2, tag, p2)) {
533 printf("%s tag appears only in %s\n",
534 name, TIFFFileName(tif1));
535 return (0);
536 }
537 return (1);
538 } else if (TIFFGetField(tif2, tag, p2)) {
539 printf("%s tag appears only in %s\n", name, TIFFFileName(tif2));
540 return (0);
541 }
542 return (-1);
543 }
544
545 #define CHECK(cmp, fmt) { \
546 switch (checkTag(tif1,tif2,tag,name,&v1,&v2)) { \
547 case 1: if (cmp) \
548 case -1: return (1); \
549 printf(fmt, name, v1, v2); \
550 } \
551 return (0); \
552 }
553
554 static int
CheckShortTag(TIFF * tif1,TIFF * tif2,int tag,char * name)555 CheckShortTag(TIFF* tif1, TIFF* tif2, int tag, char* name)
556 {
557 uint16 v1, v2;
558 CHECK(v1 == v2, "%s: %u %u\n");
559 }
560
561 static int
CheckShort2Tag(TIFF * tif1,TIFF * tif2,int tag,char * name)562 CheckShort2Tag(TIFF* tif1, TIFF* tif2, int tag, char* name)
563 {
564 uint16 v11, v12, v21, v22;
565
566 if (TIFFGetField(tif1, tag, &v11, &v12)) {
567 if (!TIFFGetField(tif2, tag, &v21, &v22)) {
568 printf("%s tag appears only in %s\n",
569 name, TIFFFileName(tif1));
570 return (0);
571 }
572 if (v11 == v21 && v12 == v22)
573 return (1);
574 printf("%s: <%u,%u> <%u,%u>\n", name, v11, v12, v21, v22);
575 } else if (TIFFGetField(tif2, tag, &v21, &v22))
576 printf("%s tag appears only in %s\n", name, TIFFFileName(tif2));
577 else
578 return (1);
579 return (0);
580 }
581
582 static int
CheckShortArrayTag(TIFF * tif1,TIFF * tif2,int tag,char * name)583 CheckShortArrayTag(TIFF* tif1, TIFF* tif2, int tag, char* name)
584 {
585 uint16 n1, *a1;
586 uint16 n2, *a2;
587
588 if (TIFFGetField(tif1, tag, &n1, &a1)) {
589 if (!TIFFGetField(tif2, tag, &n2, &a2)) {
590 printf("%s tag appears only in %s\n",
591 name, TIFFFileName(tif1));
592 return (0);
593 }
594 if (n1 == n2) {
595 char* sep;
596 uint16 i;
597
598 if (memcmp(a1, a2, n1 * sizeof(uint16)) == 0)
599 return (1);
600 printf("%s: value mismatch, <%u:", name, n1);
601 sep = "";
602 for (i = 0; i < n1; i++)
603 printf("%s%u", sep, a1[i]), sep = ",";
604 printf("> and <%u: ", n2);
605 sep = "";
606 for (i = 0; i < n2; i++)
607 printf("%s%u", sep, a2[i]), sep = ",";
608 printf(">\n");
609 } else
610 printf("%s: %u items in %s, %u items in %s", name,
611 n1, TIFFFileName(tif1),
612 n2, TIFFFileName(tif2)
613 );
614 } else if (TIFFGetField(tif2, tag, &n2, &a2))
615 printf("%s tag appears only in %s\n", name, TIFFFileName(tif2));
616 else
617 return (1);
618 return (0);
619 }
620
621 static int
CheckLongTag(TIFF * tif1,TIFF * tif2,int tag,char * name)622 CheckLongTag(TIFF* tif1, TIFF* tif2, int tag, char* name)
623 {
624 uint32 v1, v2;
625 CHECK(v1 == v2, "%s: %u %u\n");
626 }
627
628 static int
CheckFloatTag(TIFF * tif1,TIFF * tif2,int tag,char * name)629 CheckFloatTag(TIFF* tif1, TIFF* tif2, int tag, char* name)
630 {
631 float v1, v2;
632 CHECK(v1 == v2, "%s: %g %g\n");
633 }
634
635 static int
CheckStringTag(TIFF * tif1,TIFF * tif2,int tag,char * name)636 CheckStringTag(TIFF* tif1, TIFF* tif2, int tag, char* name)
637 {
638 char *v1, *v2;
639 CHECK(strcmp(v1, v2) == 0, "%s: \"%s\" \"%s\"\n");
640 }
641
642 static void
leof(const char * name,uint32 row,int s)643 leof(const char* name, uint32 row, int s)
644 {
645
646 printf("%s: EOF at scanline %lu", name, (unsigned long)row);
647 if (s >= 0)
648 printf(", sample %d", s);
649 printf("\n");
650 }
651
652 /* vim: set ts=8 sts=8 sw=8 noet: */
653 /*
654 * Local Variables:
655 * mode: c
656 * c-basic-offset: 8
657 * fill-column: 78
658 * End:
659 */
660