1 |
#ifndef lint |
2 |
static const char RCSid[] = "$Id: radcompare.c,v 2.5 2018/10/15 22:21:45 greg Exp $"; |
3 |
#endif |
4 |
/* |
5 |
* Compare Radiance files for significant differences |
6 |
* |
7 |
* G. Ward |
8 |
*/ |
9 |
|
10 |
#include <stdlib.h> |
11 |
#include <math.h> |
12 |
#include <ctype.h> |
13 |
#include "platform.h" |
14 |
#include "rtio.h" |
15 |
#include "resolu.h" |
16 |
#include "color.h" |
17 |
#include "lookup.h" |
18 |
/* Reporting levels */ |
19 |
#define REP_QUIET 0 /* no reporting */ |
20 |
#define REP_ERROR 1 /* report errors only */ |
21 |
#define REP_WARN 2 /* report warnings as well */ |
22 |
#define REP_VERBOSE 3 /* verbose reporting */ |
23 |
|
24 |
int report = REP_WARN; /* reporting level */ |
25 |
|
26 |
int ign_header = 0; /* ignore header differences? */ |
27 |
|
28 |
double rel_min = 1e-5; /* positive for relative comparisons */ |
29 |
|
30 |
double rms_lim = 0.01; /* RMS difference limit */ |
31 |
|
32 |
double max_lim = 0.25; /* difference limit if non-negative */ |
33 |
|
34 |
int lin1cnt=0, lin2cnt=0; /* file line position */ |
35 |
|
36 |
const char nsuffix[10][3] = { /* 1st, 2nd, 3rd, etc. */ |
37 |
"th","st","nd","rd","th","th","th","th","th","th" |
38 |
}; |
39 |
#define num_sfx(n) nsuffix[(n)%10] |
40 |
|
41 |
/* file types */ |
42 |
const char *file_type[] = { |
43 |
"Unrecognized", |
44 |
"TEXT_generic", |
45 |
"ascii", |
46 |
COLRFMT, |
47 |
CIEFMT, |
48 |
"float", |
49 |
"double", |
50 |
"BSDF_RBFmesh", |
51 |
"Radiance_octree", |
52 |
"Radiance_tmesh", |
53 |
"BINARY_unknown", |
54 |
NULL /* terminator */ |
55 |
}; |
56 |
/* keep consistent with above */ |
57 |
enum {TYP_UNKNOWN, TYP_TEXT, TYP_ASCII, TYP_RGBE, TYP_XYZE, TYP_FLOAT, |
58 |
TYP_DOUBLE, TYP_RBFMESH, TYP_OCTREE, TYP_TMESH, TYP_BINARY}; |
59 |
|
60 |
#define has_header(t) (!( 1L<<(t) & (1L<<TYP_TEXT | 1L<<TYP_BINARY) )) |
61 |
|
62 |
/* header variables to always ignore */ |
63 |
const char *hdr_ignkey[] = { |
64 |
"SOFTWARE", |
65 |
"CAPDATE", |
66 |
"GMT", |
67 |
NULL /* terminator */ |
68 |
}; |
69 |
/* header variable settings */ |
70 |
LUTAB hdr1 = LU_SINIT(free,free); |
71 |
LUTAB hdr2 = LU_SINIT(free,free); |
72 |
|
73 |
/* advance appropriate file line count */ |
74 |
#define adv_linecnt(htp) (lin1cnt += (htp == &hdr1), \ |
75 |
lin2cnt += (htp == &hdr2)) |
76 |
|
77 |
/* input files */ |
78 |
char *progname = NULL; |
79 |
const char stdin_name[] = "<stdin>"; |
80 |
const char *f1name=NULL, *f2name=NULL; |
81 |
FILE *f1in=NULL, *f2in=NULL; |
82 |
|
83 |
/* running real differences */ |
84 |
double diff2sum = 0; |
85 |
int nsum = 0; |
86 |
|
87 |
/* Report usage and exit */ |
88 |
static void |
89 |
usage() |
90 |
{ |
91 |
fputs("Usage: ", stderr); |
92 |
fputs(progname, stderr); |
93 |
fputs(" [-h][-s|-w|-v][-rel min_test][-rms epsilon][-max epsilon] reference test\n", |
94 |
stderr); |
95 |
exit(1); |
96 |
} |
97 |
|
98 |
/* Get type ID from name (or 0 if not found) */ |
99 |
static int |
100 |
xlate_type(const char *nm) |
101 |
{ |
102 |
int i; |
103 |
|
104 |
if (!nm || !*nm) |
105 |
return(TYP_UNKNOWN); |
106 |
for (i = 1; file_type[i]; i++) |
107 |
if (!strcmp(nm, file_type[i])) |
108 |
return(i); |
109 |
return(TYP_UNKNOWN); |
110 |
} |
111 |
|
112 |
/* Compare real values and keep track of differences */ |
113 |
static int |
114 |
real_check(double r1, double r2) |
115 |
{ |
116 |
double diff2 = (r1 - r2)*(r1 - r2); |
117 |
|
118 |
if (rel_min > 0) { /* doing relative differences? */ |
119 |
double av2 = .25*(r1*r1 + 2.*fabs(r1*r2) + r2*r2); |
120 |
if (av2 > rel_min*rel_min) |
121 |
diff2 /= av2; |
122 |
} |
123 |
if (max_lim >= 0 && diff2 > max_lim*max_lim) { |
124 |
if (report != REP_QUIET) |
125 |
printf( |
126 |
"%s: %sdifference between %.8g and %.8g exceeds epsilon of %.8g\n", |
127 |
progname, |
128 |
(rel_min > 0) ? "relative " : "", |
129 |
r1, r2, max_lim); |
130 |
return(0); |
131 |
} |
132 |
diff2sum += diff2; |
133 |
nsum++; |
134 |
return(1); |
135 |
} |
136 |
|
137 |
/* Compare two strings for equivalence */ |
138 |
static int |
139 |
equiv_string(char *s1, char *s2) |
140 |
{ |
141 |
#define CLS_STR 0 |
142 |
#define CLS_INT 1 |
143 |
#define CLS_FLT 2 |
144 |
/* skip whitespace at beginning */ |
145 |
while (isspace(*s1)) s1++; |
146 |
while (isspace(*s2)) s2++; |
147 |
while (*s1) { /* check each word */ |
148 |
int inquote; |
149 |
if (!*s2) /* unexpected EOL in s2? */ |
150 |
return(0); |
151 |
inquote = *s1; |
152 |
if ((inquote != '\'') & (inquote != '"')) |
153 |
inquote = 0; |
154 |
if (inquote) { /* quoted text must match exactly */ |
155 |
if (*s1++ != *s2++) |
156 |
return(0); |
157 |
while (*s1 != inquote) { |
158 |
if (!*s1) |
159 |
return(0); |
160 |
if (*s1++ != *s2++) |
161 |
return(0); |
162 |
} |
163 |
s1++; |
164 |
if (*s2++ != inquote) |
165 |
return(0); |
166 |
} else { /* else classify word type */ |
167 |
char *s1s = s1; |
168 |
char *s2s = s2; |
169 |
int cls = CLS_STR; |
170 |
s1 = sskip(s1); |
171 |
s2 = sskip(s2); |
172 |
if (iskip(s1s) == s1) { |
173 |
if (iskip(s2s) == s2) |
174 |
cls = CLS_INT; |
175 |
else if (fskip(s2s) == s2) |
176 |
cls = CLS_FLT; |
177 |
} else if (fskip(s1s) == s1) { |
178 |
if (fskip(s2s) != s2) |
179 |
return(0); |
180 |
cls = CLS_FLT; |
181 |
} |
182 |
switch (cls) { |
183 |
case CLS_INT: /* strncmp() faster */ |
184 |
case CLS_STR: |
185 |
if (s1 - s1s != s2 - s2s) |
186 |
return(0); |
187 |
if (strncmp(s1s, s2s, s1 - s1s)) |
188 |
return(0); |
189 |
break; |
190 |
case CLS_FLT: |
191 |
if (!real_check(atof(s1s), atof(s2s))) |
192 |
return(0); |
193 |
break; |
194 |
} |
195 |
} |
196 |
while (isspace(*s1)) s1++; |
197 |
while (isspace(*s2)) s2++; |
198 |
} |
199 |
return(!*s2); /* match if we reached the end of s2, too */ |
200 |
#undef CLS_STR |
201 |
#undef CLS_INT |
202 |
#undef CLS_FLT |
203 |
} |
204 |
|
205 |
/* Check if string is var=value pair and set if not in ignore list */ |
206 |
static int |
207 |
setheadvar(char *val, void *p) |
208 |
{ |
209 |
LUTAB *htp = (LUTAB *)p; |
210 |
LUENT *tep; |
211 |
char *key; |
212 |
int kln, vln; |
213 |
int n; |
214 |
|
215 |
adv_linecnt(htp); /* side-effect is to count lines */ |
216 |
if (!isalpha(*val)) /* key must start line */ |
217 |
return(0); |
218 |
key = val++; |
219 |
while (*val && !isspace(*val) & (*val != '=')) |
220 |
val++; |
221 |
kln = val - key; |
222 |
while (isspace(*val)) /* check for value */ |
223 |
*val++ = '\0'; |
224 |
if (*val != '=') |
225 |
return(0); |
226 |
*val++ = '\0'; |
227 |
while (isspace(*val)) |
228 |
val++; |
229 |
if (!*val) /* nothing set? */ |
230 |
return(0); |
231 |
/* check if key to ignore */ |
232 |
for (n = 0; hdr_ignkey[n]; n++) |
233 |
if (!strcmp(key, hdr_ignkey[n])) |
234 |
return(0); |
235 |
vln = strlen(val); /* eliminate space and newline at end */ |
236 |
while (isspace(val[--vln])) |
237 |
; |
238 |
val[++vln] = '\0'; |
239 |
if (!(tep = lu_find(htp, key))) |
240 |
return(-1); /* memory allocation error */ |
241 |
if (!tep->key) |
242 |
tep->key = strcpy(malloc(kln+1), key); |
243 |
if (tep->data) |
244 |
free(tep->data); |
245 |
tep->data = strcpy(malloc(vln+1), val); |
246 |
return(1); |
247 |
} |
248 |
|
249 |
/* Lookup correspondent in other header */ |
250 |
static int |
251 |
match_val(const LUENT *ep1, void *p2) |
252 |
{ |
253 |
const LUENT *ep2 = lu_find((LUTAB *)p2, ep1->key); |
254 |
if (!ep2 || !ep2->data) { |
255 |
if (report != REP_QUIET) |
256 |
printf("%s: variable '%s' missing in '%s'\n", |
257 |
progname, ep1->key, f2name); |
258 |
return(-1); |
259 |
} |
260 |
if (!equiv_string((char *)ep1->data, (char *)ep2->data)) { |
261 |
if (report != REP_QUIET) { |
262 |
printf("%s: header variable '%s' has different values\n", |
263 |
progname, ep1->key); |
264 |
if (report >= REP_VERBOSE) { |
265 |
printf("%s: %s=%s\n", f1name, |
266 |
ep1->key, (char *)ep1->data); |
267 |
printf("%s: %s=%s\n", f2name, |
268 |
ep2->key, (char *)ep2->data); |
269 |
} |
270 |
} |
271 |
return(-1); |
272 |
} |
273 |
return(1); /* good match */ |
274 |
} |
275 |
|
276 |
/* Compare two sets of header variables */ |
277 |
static int |
278 |
headers_match(LUTAB *hp1, LUTAB *hp2) |
279 |
{ |
280 |
int ne = lu_doall(hp1, match_val, hp2); |
281 |
if (ne < 0) |
282 |
return(0); /* something didn't match! */ |
283 |
/* non-fatal if second header has extra */ |
284 |
if (report >= REP_WARN && (ne = lu_doall(hp2, NULL, NULL) - ne)) |
285 |
printf("%s: warning - '%s' has %d extra header setting(s)\n", |
286 |
progname, f2name, ne); |
287 |
return(1); /* good match */ |
288 |
} |
289 |
|
290 |
/* Check generic input to determine if it is binary, -1 on error */ |
291 |
static int |
292 |
input_is_binary(FILE *fin) |
293 |
{ |
294 |
int n = 0; |
295 |
int c = 0; |
296 |
|
297 |
while ((c = getc(fin)) != EOF) { |
298 |
++n; |
299 |
if (!c | (c > 127)) |
300 |
break; /* non-ascii character */ |
301 |
if (n >= 10240) |
302 |
break; /* enough to be confident */ |
303 |
} |
304 |
if (!n) |
305 |
return(-1); /* first read failed */ |
306 |
if (fseek(fin, 0L, 0) < 0) |
307 |
return(-1); /* rewind failed */ |
308 |
return(!c | (c > 127)); |
309 |
} |
310 |
|
311 |
/* Identify and return data type from header (if one) */ |
312 |
static int |
313 |
identify_type(const char *name, FILE *fin, LUTAB *htp) |
314 |
{ |
315 |
extern const char HDRSTR[]; |
316 |
int c; |
317 |
/* check magic header start */ |
318 |
if ((c = getc(fin)) != HDRSTR[0]) { |
319 |
if (c == EOF) goto badeof; |
320 |
ungetc(c, fin); |
321 |
c = 0; |
322 |
} else if ((c = getc(fin)) != HDRSTR[1]) { |
323 |
if (c == EOF) goto badeof; |
324 |
ungetc(c, fin); ungetc(HDRSTR[0], fin); |
325 |
c = 0; |
326 |
} |
327 |
if (c) { /* appears to have a header */ |
328 |
char sbuf[32]; |
329 |
if (!fgets(sbuf, sizeof(sbuf), fin)) |
330 |
goto badeof; |
331 |
adv_linecnt(htp); /* for #?ID string */ |
332 |
if (report >= REP_WARN && strncmp(sbuf, "RADIANCE", 8)) { |
333 |
fputs(name, stdout); |
334 |
fputs(": warning - unexpected header ID: ", stdout); |
335 |
fputs(sbuf, stdout); |
336 |
} |
337 |
if (getheader(fin, setheadvar, htp) < 0) { |
338 |
fputs(name, stderr); |
339 |
fputs(": unknown error reading header\n", stderr); |
340 |
return(-1); |
341 |
} |
342 |
adv_linecnt(htp); /* for trailing emtpy line */ |
343 |
return(xlate_type((const char *)lu_find(htp,"FORMAT")->data)); |
344 |
} |
345 |
c = input_is_binary(fin); /* else peek to see if binary */ |
346 |
if (c < 0) { |
347 |
fputs(name, stderr); |
348 |
fputs(": read/seek error\n", stderr); |
349 |
return(-1); |
350 |
} |
351 |
if (c) |
352 |
return(TYP_BINARY); |
353 |
SET_FILE_TEXT(fin); /* originally set to binary */ |
354 |
return(TYP_TEXT); |
355 |
badeof: |
356 |
if (report != REP_QUIET) { |
357 |
fputs(name, stdout); |
358 |
fputs(": unexpected end-of-file\n", stdout); |
359 |
} |
360 |
return(-1); |
361 |
} |
362 |
|
363 |
/* Check that overall RMS error is below threshold */ |
364 |
static int |
365 |
good_RMS() |
366 |
{ |
367 |
if (!nsum) |
368 |
return(1); |
369 |
if (diff2sum/(double)nsum > rms_lim*rms_lim) { |
370 |
if (report != REP_QUIET) |
371 |
printf( |
372 |
"%s: %sRMS difference between '%s' and '%s' of %.5g exceeds limit of %.5g\n", |
373 |
progname, |
374 |
(rel_min > 0) ? "relative " : "", |
375 |
f1name, f2name, |
376 |
sqrt(diff2sum/(double)nsum), rms_lim); |
377 |
return(0); |
378 |
} |
379 |
if (report >= REP_VERBOSE) |
380 |
printf("%s: %sRMS difference of reals in '%s' and '%s' is %.5g\n", |
381 |
progname, (rel_min > 0) ? "relative " : "", |
382 |
f1name, f2name, sqrt(diff2sum/(double)nsum)); |
383 |
return(1); |
384 |
} |
385 |
|
386 |
/* Compare two inputs as generic binary files */ |
387 |
static int |
388 |
compare_binary() |
389 |
{ |
390 |
int c1=0, c2=0; |
391 |
|
392 |
if (report >= REP_VERBOSE) { |
393 |
fputs(progname, stdout); |
394 |
fputs(": comparing inputs as binary\n", stdout); |
395 |
} |
396 |
for ( ; ; ) { /* exact byte matching */ |
397 |
c1 = getc(f1in); |
398 |
c2 = getc(f2in); |
399 |
if (c1 == EOF) { |
400 |
if (c2 == EOF) |
401 |
return(1); /* success! */ |
402 |
if (report != REP_QUIET) { |
403 |
fputs(f1name, stdout); |
404 |
fputs(": unexpected end-of-file\n", stdout); |
405 |
} |
406 |
return(0); |
407 |
} |
408 |
if (c2 == EOF) { |
409 |
if (report != REP_QUIET) { |
410 |
fputs(f2name, stdout); |
411 |
fputs(": unexpected end-of-file\n", stdout); |
412 |
} |
413 |
return(0); |
414 |
} |
415 |
if (c1 != c2) |
416 |
break; /* quit and report difference */ |
417 |
} |
418 |
if (report == REP_QUIET) |
419 |
return(0); |
420 |
printf("%s: binary files '%s' and '%s' differ at byte offset %ld|%ld\n", |
421 |
progname, f1name, f2name, ftell(f1in), ftell(f2in)); |
422 |
if (report >= REP_VERBOSE) |
423 |
printf("%s: byte in '%s' is 0x%X, byte in '%s' is 0x%X\n", |
424 |
progname, f1name, c1, f2name, c2); |
425 |
return(0); |
426 |
} |
427 |
|
428 |
/* Compare two inputs as generic text files */ |
429 |
static int |
430 |
compare_text() |
431 |
{ |
432 |
char l1buf[4096], l2buf[4096]; |
433 |
|
434 |
if (report >= REP_VERBOSE) { |
435 |
fputs(progname, stdout); |
436 |
fputs(": comparing inputs as ASCII text\n", stdout); |
437 |
} |
438 |
/* compare a line at a time */ |
439 |
while (fgets(l1buf, sizeof(l1buf), f1in)) { |
440 |
lin1cnt++; |
441 |
if (!*sskip2(l1buf,0)) |
442 |
continue; /* ignore empty lines */ |
443 |
while (fgets(l2buf, sizeof(l2buf), f2in)) { |
444 |
lin2cnt++; |
445 |
if (*sskip2(l2buf,0)) |
446 |
break; /* found other non-empty line */ |
447 |
} |
448 |
if (feof(f2in)) { |
449 |
if (report != REP_QUIET) { |
450 |
fputs(f2name, stdout); |
451 |
fputs(": unexpected end-of-file\n", stdout); |
452 |
} |
453 |
return(0); |
454 |
} |
455 |
/* compare non-empty lines */ |
456 |
if (!equiv_string(l1buf, l2buf)) { |
457 |
if (report != REP_QUIET) { |
458 |
printf("%s: inputs '%s' and '%s' differ at line %d|%d\n", |
459 |
progname, f1name, f2name, |
460 |
lin1cnt, lin2cnt); |
461 |
if (report >= REP_VERBOSE) { |
462 |
fputs("------------- Mismatch -------------\n", stdout); |
463 |
printf("%s@%d:\t%s", f1name, |
464 |
lin1cnt, l1buf); |
465 |
printf("%s@%d:\t%s", f2name, |
466 |
lin2cnt, l2buf); |
467 |
} |
468 |
} |
469 |
return(0); |
470 |
} |
471 |
} |
472 |
/* check for EOF on input 2 */ |
473 |
while (fgets(l2buf, sizeof(l2buf), f2in)) { |
474 |
if (!*sskip2(l2buf,0)) |
475 |
continue; |
476 |
if (report != REP_QUIET) { |
477 |
fputs(f1name, stdout); |
478 |
fputs(": unexpected end-of-file\n", stdout); |
479 |
} |
480 |
return(0); |
481 |
} |
482 |
return(good_RMS()); /* final check for reals */ |
483 |
} |
484 |
|
485 |
/* Compare two inputs that are known to be RGBE or XYZE images */ |
486 |
static int |
487 |
compare_hdr() |
488 |
{ |
489 |
RESOLU rs1, rs2; |
490 |
COLOR *scan1, *scan2; |
491 |
int x, y; |
492 |
|
493 |
if (report >= REP_VERBOSE) { |
494 |
fputs(progname, stdout); |
495 |
fputs(": comparing inputs as HDR images\n", stdout); |
496 |
} |
497 |
fgetsresolu(&rs1, f1in); |
498 |
fgetsresolu(&rs2, f2in); |
499 |
if (rs1.rt != rs2.rt) { |
500 |
if (report != REP_QUIET) |
501 |
printf( |
502 |
"%s: Images '%s' and '%s' have different pixel ordering\n", |
503 |
progname, f1name, f2name); |
504 |
return(0); |
505 |
} |
506 |
if ((rs1.xr != rs2.xr) | (rs1.yr != rs2.yr)) { |
507 |
if (report != REP_QUIET) |
508 |
printf( |
509 |
"%s: Images '%s' and '%s' are different sizes\n", |
510 |
progname, f1name, f2name); |
511 |
return(0); |
512 |
} |
513 |
scan1 = (COLOR *)malloc(scanlen(&rs1)*sizeof(COLOR)); |
514 |
scan2 = (COLOR *)malloc(scanlen(&rs2)*sizeof(COLOR)); |
515 |
if (!scan1 | !scan2) { |
516 |
fprintf(stderr, "%s: out of memory in compare_hdr()\n", progname); |
517 |
exit(2); |
518 |
} |
519 |
for (y = 0; y < numscans(&rs1); y++) { |
520 |
if ((freadscan(scan1, scanlen(&rs1), f1in) < 0) | |
521 |
(freadscan(scan2, scanlen(&rs2), f2in) < 0)) { |
522 |
if (report != REP_QUIET) |
523 |
printf("%s: unexpected end-of-file\n", |
524 |
progname); |
525 |
free(scan1); |
526 |
free(scan2); |
527 |
return(0); |
528 |
} |
529 |
for (x = 0; x < scanlen(&rs1); x++) { |
530 |
if (real_check(colval(scan1[x],RED), |
531 |
colval(scan2[x],RED)) & |
532 |
real_check(colval(scan1[x],GRN), |
533 |
colval(scan2[x],GRN)) & |
534 |
real_check(colval(scan1[x],BLU), |
535 |
colval(scan2[x],BLU))) |
536 |
continue; |
537 |
if (report != REP_QUIET) { |
538 |
printf( |
539 |
"%s: pixels at scanline %d offset %d differ\n", |
540 |
progname, y, x); |
541 |
if (report >= REP_VERBOSE) { |
542 |
printf("%s: (R,G,B)=(%g,%g,%g)\n", |
543 |
f1name, colval(scan1[x],RED), |
544 |
colval(scan1[x],GRN), |
545 |
colval(scan1[x],BLU)); |
546 |
printf("%s: (R,G,B)=(%g,%g,%g)\n", |
547 |
f2name, colval(scan2[x],RED), |
548 |
colval(scan2[x],GRN), |
549 |
colval(scan2[x],BLU)); |
550 |
} |
551 |
} |
552 |
free(scan1); |
553 |
free(scan2); |
554 |
return(0); |
555 |
} |
556 |
} |
557 |
free(scan1); |
558 |
free(scan2); |
559 |
return(good_RMS()); /* final check of RMS */ |
560 |
} |
561 |
|
562 |
/* Compare two inputs that are known to be 32-bit floating-point data */ |
563 |
static int |
564 |
compare_float() |
565 |
{ |
566 |
long nread = 0; |
567 |
float f1, f2; |
568 |
|
569 |
if (report >= REP_VERBOSE) { |
570 |
fputs(progname, stdout); |
571 |
fputs(": comparing inputs as 32-bit IEEE float\n", stdout); |
572 |
} |
573 |
while (getbinary(&f1, sizeof(f1), 1, f1in)) { |
574 |
if (!getbinary(&f2, sizeof(f2), 1, f2in)) |
575 |
goto badeof; |
576 |
++nread; |
577 |
if (real_check(f1, f2)) |
578 |
continue; |
579 |
if (report != REP_QUIET) |
580 |
printf("%s: %ld%s float values differ\n", |
581 |
progname, nread, num_sfx(nread)); |
582 |
return(0); |
583 |
} |
584 |
if (!getbinary(&f2, sizeof(f2), 1, f2in)) |
585 |
return(good_RMS()); /* final check of RMS */ |
586 |
badeof: |
587 |
if (report != REP_QUIET) |
588 |
printf("%s: unexpected end-of-file\n", progname); |
589 |
return(0); |
590 |
} |
591 |
|
592 |
/* Compare two inputs that are known to be 64-bit floating-point data */ |
593 |
static int |
594 |
compare_double() |
595 |
{ |
596 |
long nread = 0; |
597 |
double f1, f2; |
598 |
|
599 |
if (report >= REP_VERBOSE) { |
600 |
fputs(progname, stdout); |
601 |
fputs(": comparing inputs as 64-bit IEEE double\n", stdout); |
602 |
} |
603 |
while (getbinary(&f1, sizeof(f1), 1, f1in)) { |
604 |
if (!getbinary(&f2, sizeof(f2), 1, f2in)) |
605 |
goto badeof; |
606 |
++nread; |
607 |
if (real_check(f1, f2)) |
608 |
continue; |
609 |
if (report != REP_QUIET) |
610 |
printf("%s: %ld%s double values differ\n", |
611 |
progname, nread, num_sfx(nread)); |
612 |
return(0); |
613 |
} |
614 |
if (!getbinary(&f2, sizeof(f2), 1, f2in)) |
615 |
return(good_RMS()); /* final check of RMS */ |
616 |
badeof: |
617 |
if (report != REP_QUIET) |
618 |
printf("%s: unexpected end-of-file\n", progname); |
619 |
return(0); |
620 |
} |
621 |
|
622 |
/* Compare two Radiance files for equivalence */ |
623 |
int |
624 |
main(int argc, char *argv[]) |
625 |
{ |
626 |
int typ1, typ2; |
627 |
int a; |
628 |
|
629 |
progname = argv[0]; |
630 |
for (a = 1; a < argc && argv[a][0] == '-'; a++) { |
631 |
switch (argv[a][1]) { |
632 |
case 'h': /* ignore header info. */ |
633 |
ign_header = !ign_header; |
634 |
continue; |
635 |
case 's': /* silent operation */ |
636 |
report = REP_QUIET; |
637 |
continue; |
638 |
case 'w': /* turn off warnings */ |
639 |
if (report > REP_ERROR) |
640 |
report = REP_ERROR; |
641 |
continue; |
642 |
case 'v': /* turn on verbose mode */ |
643 |
report = REP_VERBOSE; |
644 |
continue; |
645 |
case 'm': /* maximum epsilon */ |
646 |
max_lim = atof(argv[++a]); |
647 |
continue; |
648 |
case 'r': |
649 |
if (argv[a][2] == 'e') /* relative difference */ |
650 |
rel_min = atof(argv[++a]); |
651 |
else if (argv[a][2] == 'm') /* RMS limit */ |
652 |
rms_lim = atof(argv[++a]); |
653 |
else |
654 |
usage(); |
655 |
continue; |
656 |
case '\0': /* first file from stdin */ |
657 |
f1in = stdin; |
658 |
f1name = stdin_name; |
659 |
break; |
660 |
default: |
661 |
usage(); |
662 |
} |
663 |
break; |
664 |
} |
665 |
if (a != argc-2) |
666 |
usage(); |
667 |
if (!f1name) f1name = argv[a]; |
668 |
if (!f2name) f2name = argv[a+1]; |
669 |
|
670 |
if (!strcmp(f1name, f2name)) { /* inputs are same? */ |
671 |
if (report >= REP_WARN) |
672 |
printf("%s: warning - identical inputs given\n", |
673 |
progname); |
674 |
return(0); |
675 |
} |
676 |
/* open inputs */ |
677 |
SET_FILE_BINARY(stdin); /* in case we're using it */ |
678 |
if (!f1in && !(f1in = fopen(f1name, "rb"))) { |
679 |
fprintf(stderr, "%s: cannot open for reading\n", f1name); |
680 |
return(1); |
681 |
} |
682 |
if (!strcmp(f2name, "-")) { |
683 |
f2in = stdin; |
684 |
f2name = stdin_name; |
685 |
} else if (!(f2in = fopen(f2name, "rb"))) { |
686 |
fprintf(stderr, "%s: cannot open for reading\n", f2name); |
687 |
return(1); |
688 |
} |
689 |
/* load headers */ |
690 |
if ((typ1 = identify_type(f1name, f1in, &hdr1)) < 0) |
691 |
return(1); |
692 |
if ((typ2 = identify_type(f2name, f2in, &hdr2)) < 0) |
693 |
return(1); |
694 |
if (typ1 != typ2) { |
695 |
if (report != REP_QUIET) |
696 |
printf("%s: '%s' is %s and '%s' is %s\n", |
697 |
progname, f1name, file_type[typ1], |
698 |
f2name, file_type[typ2]); |
699 |
return(1); |
700 |
} |
701 |
ign_header |= !has_header(typ1); /* check headers if indicated */ |
702 |
if (!ign_header && !headers_match(&hdr1, &hdr2)) |
703 |
return(1); |
704 |
lu_done(&hdr1); lu_done(&hdr2); |
705 |
if (!ign_header & (report >= REP_WARN)) { |
706 |
if (typ1 == TYP_UNKNOWN) |
707 |
printf("%s: warning - unrecognized format, comparing as binary\n", |
708 |
progname); |
709 |
if (lin1cnt != lin2cnt) |
710 |
printf("%s: warning - headers are different lengths\n", |
711 |
progname); |
712 |
} |
713 |
if (report >= REP_VERBOSE) |
714 |
printf("%s: input file type is %s\n", |
715 |
progname, file_type[typ1]); |
716 |
|
717 |
switch (typ1) { /* compare based on type */ |
718 |
case TYP_BINARY: |
719 |
case TYP_TMESH: |
720 |
case TYP_OCTREE: |
721 |
case TYP_RBFMESH: |
722 |
case TYP_UNKNOWN: |
723 |
return( !compare_binary() ); |
724 |
case TYP_TEXT: |
725 |
case TYP_ASCII: |
726 |
return( !compare_text() ); |
727 |
case TYP_RGBE: |
728 |
case TYP_XYZE: |
729 |
return( !compare_hdr() ); |
730 |
case TYP_FLOAT: |
731 |
return( !compare_float() ); |
732 |
case TYP_DOUBLE: |
733 |
return( !compare_double() ); |
734 |
} |
735 |
return(1); |
736 |
} |