1 |
#ifndef lint |
2 |
static const char RCSid[] = "$Id: radcompare.c,v 2.31 2022/05/27 17:27:53 greg Exp $"; |
3 |
#endif |
4 |
/* |
5 |
* Compare Radiance files for significant differences |
6 |
* |
7 |
* G. Ward |
8 |
*/ |
9 |
|
10 |
#include <stdlib.h> |
11 |
#include <ctype.h> |
12 |
#include "rtmath.h" |
13 |
#include "platform.h" |
14 |
#include "rtio.h" |
15 |
#include "resolu.h" |
16 |
#include "color.h" |
17 |
#include "depthcodec.h" |
18 |
#include "normcodec.h" |
19 |
#include "lookup.h" |
20 |
/* Reporting levels */ |
21 |
#define REP_QUIET 0 /* no reporting */ |
22 |
#define REP_ERROR 1 /* report errors only */ |
23 |
#define REP_WARN 2 /* report warnings as well */ |
24 |
#define REP_VERBOSE 3 /* verbose reporting */ |
25 |
|
26 |
int report = REP_WARN; /* reporting level */ |
27 |
|
28 |
int ign_header = 0; /* ignore header differences? */ |
29 |
|
30 |
int escape_newlines = 0; /* allow backslash to skip newlines */ |
31 |
|
32 |
double rel_min = 1e-5; /* positive for relative comparisons */ |
33 |
|
34 |
double rms_lim = 0.01; /* RMS difference limit */ |
35 |
|
36 |
double max_lim = 0.25; /* difference limit if non-negative */ |
37 |
|
38 |
int lin1cnt=0, lin2cnt=0; /* file line position */ |
39 |
|
40 |
int comment_c = '\0'; /* comment delimiter for text files */ |
41 |
|
42 |
const char nsuffix[10][3] = { /* 1st, 2nd, 3rd, etc. */ |
43 |
"th","st","nd","rd","th","th","th","th","th","th" |
44 |
}; |
45 |
#define num_sfx(n) nsuffix[(n)%10] |
46 |
|
47 |
/* file types */ |
48 |
const char *file_type[] = { |
49 |
"Unrecognized", |
50 |
"TEXT_generic", |
51 |
"ascii", |
52 |
COLRFMT, |
53 |
CIEFMT, |
54 |
DEPTH16FMT, |
55 |
NORMAL32FMT, |
56 |
"float", |
57 |
"double", |
58 |
"BSDF_RBFmesh", |
59 |
"Radiance_octree", |
60 |
"Radiance_tmesh", |
61 |
"8-bit_indexed_name", |
62 |
"16-bit_indexed_name", |
63 |
"24-bit_indexed_name", |
64 |
"BINARY_unknown", |
65 |
NULL /* terminator */ |
66 |
}; |
67 |
/* keep consistent with above */ |
68 |
enum {TYP_UNKNOWN, TYP_TEXT, TYP_ASCII, TYP_RGBE, TYP_XYZE, |
69 |
TYP_DEPTH, TYP_NORM, TYP_FLOAT, TYP_DOUBLE, |
70 |
TYP_RBFMESH, TYP_OCTREE, TYP_TMESH, |
71 |
TYP_ID8, TYP_ID16, TYP_ID24, TYP_BINARY}; |
72 |
|
73 |
#define has_header(t) (!( 1L<<(t) & (1L<<TYP_TEXT | 1L<<TYP_BINARY) )) |
74 |
|
75 |
/* header variables to always ignore */ |
76 |
const char *hdr_ignkey[] = { |
77 |
"SOFTWARE", |
78 |
"CAPDATE", |
79 |
"GMT", |
80 |
"FRAME", |
81 |
NULL /* terminator */ |
82 |
}; |
83 |
/* header variable settings */ |
84 |
LUTAB hdr1 = LU_SINIT(free,free); |
85 |
LUTAB hdr2 = LU_SINIT(free,free); |
86 |
|
87 |
/* advance appropriate file line count */ |
88 |
#define adv_linecnt(htp) (lin1cnt += (htp == &hdr1), \ |
89 |
lin2cnt += (htp == &hdr2)) |
90 |
|
91 |
typedef struct { /* dynamic line buffer */ |
92 |
char *str; |
93 |
int len; |
94 |
int siz; |
95 |
} LINEBUF; |
96 |
|
97 |
#define init_line(bp) ((bp)->str = NULL, (bp)->siz = 0) |
98 |
/* 100 MByte limit on line buffer */ |
99 |
#define MAXBUF (100L<<20) |
100 |
|
101 |
/* input files */ |
102 |
char *progname = NULL; |
103 |
const char stdin_name[] = "<stdin>"; |
104 |
const char *f1name=NULL, *f2name=NULL; |
105 |
FILE *f1in=NULL, *f2in=NULL; |
106 |
int f1swap=0, f2swap=0; |
107 |
|
108 |
/* running real differences */ |
109 |
double diff2sum = 0; |
110 |
long nsum = 0; |
111 |
|
112 |
/* Report usage and exit */ |
113 |
static void |
114 |
usage() |
115 |
{ |
116 |
fputs("Usage: ", stderr); |
117 |
fputs(progname, stderr); |
118 |
fputs(" [-h][-c#][-s|-w|-v][-rel min_test][-rms epsilon][-max epsilon] reference test\n", |
119 |
stderr); |
120 |
exit(2); |
121 |
} |
122 |
|
123 |
/* Read a text line, increasing buffer size as necessary */ |
124 |
static int |
125 |
read_line(LINEBUF *bp, FILE *fp) |
126 |
{ |
127 |
static int doneWarn = 0; |
128 |
|
129 |
bp->len = 0; |
130 |
if (!bp->str) { |
131 |
bp->str = (char *)malloc(bp->siz = 512); |
132 |
if (!bp->str) |
133 |
goto memerr; |
134 |
} |
135 |
while (fgets(bp->str + bp->len, bp->siz - bp->len, fp)) { |
136 |
bp->len += strlen(bp->str + bp->len); |
137 |
if (bp->str[bp->len-1] == '\n') { |
138 |
if (bp->len > 1 && bp->str[bp->len-2] == '\r') { |
139 |
bp->str[--bp->len] = '\0'; |
140 |
bp->str[bp->len-1] = '\n'; |
141 |
} |
142 |
if (escape_newlines && bp->len > 1 && |
143 |
bp->str[bp->len-2] == '\\') { |
144 |
bp->str[--bp->len] = '\0'; |
145 |
bp->str[bp->len-1] = ' '; |
146 |
continue; |
147 |
} |
148 |
break; /* found EOL */ |
149 |
} |
150 |
if (bp->len < bp->siz - 4) |
151 |
continue; /* at EOF? */ |
152 |
if (bp->siz >= MAXBUF) { |
153 |
if ((report >= REP_WARN) & !doneWarn) { |
154 |
fprintf(stderr, |
155 |
"%s: warning - input line(s) past %ld MByte limit\n", |
156 |
progname, MAXBUF>>20); |
157 |
doneWarn++; |
158 |
} |
159 |
break; /* return MAXBUF partial line */ |
160 |
} |
161 |
if ((bp->siz += bp->siz/2) > MAXBUF) |
162 |
bp->siz = MAXBUF; |
163 |
bp->str = (char *)realloc(bp->str, bp->siz); |
164 |
if (!bp->str) |
165 |
goto memerr; |
166 |
} |
167 |
if (comment_c) { /* elide comment? */ |
168 |
char *cp = sskip2(bp->str,0); |
169 |
if (*cp == comment_c) { |
170 |
*cp++ = '\n'; |
171 |
*cp = '\0'; |
172 |
bp->len = cp - bp->str; |
173 |
} |
174 |
} |
175 |
return(bp->len); |
176 |
memerr: |
177 |
fprintf(stderr, |
178 |
"%s: out of memory in read_line() allocating %d byte buffer\n", |
179 |
progname, bp->siz); |
180 |
exit(2); |
181 |
} |
182 |
|
183 |
/* Free line buffer */ |
184 |
static void |
185 |
free_line(LINEBUF *bp) |
186 |
{ |
187 |
if (bp->str) free(bp->str); |
188 |
init_line(bp); |
189 |
} |
190 |
|
191 |
/* Get type ID from name (or 0 if not found) */ |
192 |
static int |
193 |
xlate_type(const char *nm) |
194 |
{ |
195 |
int i; |
196 |
|
197 |
if (!nm || !*nm) |
198 |
return(TYP_UNKNOWN); |
199 |
for (i = 1; file_type[i]; i++) |
200 |
if (!strcmp(nm, file_type[i])) |
201 |
return(i); |
202 |
return(TYP_UNKNOWN); |
203 |
} |
204 |
|
205 |
/* Compare real values and keep track of differences */ |
206 |
static int |
207 |
real_check(double r1, double r2) |
208 |
{ |
209 |
double diff2 = (r1 - r2)*(r1 - r2); |
210 |
|
211 |
if (rel_min > 0) { /* doing relative differences? */ |
212 |
double av2 = .25*(r1*r1 + 2.*fabs(r1*r2) + r2*r2); |
213 |
if (av2 < rel_min*rel_min) |
214 |
av2 = rel_min*rel_min; |
215 |
diff2 /= av2; |
216 |
} |
217 |
if (max_lim >= 0 && diff2 > max_lim*max_lim) { |
218 |
if (report != REP_QUIET) |
219 |
printf( |
220 |
"%s: %sdifference between %.8g and %.8g exceeds epsilon of %.8g\n", |
221 |
progname, |
222 |
(rel_min > 0) ? "relative " : "", |
223 |
r1, r2, max_lim); |
224 |
return(0); |
225 |
} |
226 |
diff2sum += diff2; |
227 |
nsum++; |
228 |
return(1); |
229 |
} |
230 |
|
231 |
/* Compare two color values for equivalence */ |
232 |
static int |
233 |
color_check(COLOR c1, COLOR c2) |
234 |
{ |
235 |
int p; |
236 |
|
237 |
if (!real_check((colval(c1,RED)+colval(c1,GRN)+colval(c1,BLU))*(1./3.), |
238 |
(colval(c2,RED)+colval(c2,GRN)+colval(c2,BLU))*(1./3.))) |
239 |
return(0); |
240 |
|
241 |
p = (colval(c1,GRN) > colval(c1,RED)) ? GRN : RED; |
242 |
if (colval(c1,BLU) > colval(c1,p)) p = BLU; |
243 |
|
244 |
return(real_check(colval(c1,p), colval(c2,p))); |
245 |
} |
246 |
|
247 |
/* Compare two normal directions for equivalence */ |
248 |
static int |
249 |
norm_check(FVECT nv1, FVECT nv2) |
250 |
{ |
251 |
double max2 = nv1[2]*nv2[2]; |
252 |
int imax = 2; |
253 |
int i = 2; |
254 |
/* identify largest component */ |
255 |
while (i--) { |
256 |
double tm2 = nv1[i]*nv2[i]; |
257 |
if (tm2 > max2) { |
258 |
imax = i; |
259 |
max2 = tm2; |
260 |
} |
261 |
} |
262 |
i = 3; /* compare smaller components */ |
263 |
while (i--) { |
264 |
if (i == imax) |
265 |
continue; |
266 |
if (!real_check(nv1[i], nv2[i])) |
267 |
return(0); |
268 |
} |
269 |
return(1); |
270 |
} |
271 |
|
272 |
/* Compare two strings for equivalence */ |
273 |
static int |
274 |
equiv_string(char *s1, char *s2) |
275 |
{ |
276 |
#define CLS_STR 0 |
277 |
#define CLS_INT 1 |
278 |
#define CLS_FLT 2 |
279 |
/* skip whitespace at beginning */ |
280 |
while (isspace(*s1)) s1++; |
281 |
while (isspace(*s2)) s2++; |
282 |
while (*s1) { /* check each word */ |
283 |
int inquote; |
284 |
if (!*s2) /* unexpected EOL in s2? */ |
285 |
return(0); |
286 |
inquote = *s1; |
287 |
if ((inquote != '\'') & (inquote != '"')) |
288 |
inquote = 0; |
289 |
if (inquote) { /* quoted text must match exactly */ |
290 |
if (*s1++ != *s2++) |
291 |
return(0); |
292 |
while (*s1 != inquote) { |
293 |
if (!*s1) |
294 |
return(0); |
295 |
if (*s1++ != *s2++) |
296 |
return(0); |
297 |
} |
298 |
s1++; |
299 |
if (*s2++ != inquote) |
300 |
return(0); |
301 |
} else { /* else classify word type */ |
302 |
char *s1s = s1; |
303 |
char *s2s = s2; |
304 |
int cls = CLS_STR; |
305 |
s1 = sskip(s1); |
306 |
s2 = sskip(s2); |
307 |
if (iskip(s1s) == s1) { |
308 |
if (iskip(s2s) == s2) |
309 |
cls = CLS_INT; |
310 |
else if (fskip(s2s) == s2) |
311 |
cls = CLS_FLT; |
312 |
} else if (fskip(s1s) == s1) { |
313 |
if (fskip(s2s) != s2) |
314 |
return(0); |
315 |
cls = CLS_FLT; |
316 |
} |
317 |
switch (cls) { |
318 |
case CLS_INT: /* strncmp() faster */ |
319 |
case CLS_STR: |
320 |
if (s1 - s1s != s2 - s2s) |
321 |
return(0); |
322 |
if (strncmp(s1s, s2s, s1 - s1s)) |
323 |
return(0); |
324 |
break; |
325 |
case CLS_FLT: |
326 |
if (!real_check(atof(s1s), atof(s2s))) |
327 |
return(0); |
328 |
break; |
329 |
} |
330 |
} |
331 |
while (isspace(*s1)) s1++; |
332 |
while (isspace(*s2)) s2++; |
333 |
} |
334 |
return(!*s2); /* match if we reached the end of s2, too */ |
335 |
#undef CLS_STR |
336 |
#undef CLS_INT |
337 |
#undef CLS_FLT |
338 |
} |
339 |
|
340 |
/* Check if string is var=value pair and set if not in ignore list */ |
341 |
static int |
342 |
setheadvar(char *val, void *p) |
343 |
{ |
344 |
char newval[128]; |
345 |
LUTAB *htp = (LUTAB *)p; |
346 |
LUENT *tep; |
347 |
char *key; |
348 |
int kln, vln; |
349 |
int n; |
350 |
|
351 |
adv_linecnt(htp); /* side-effect is to count lines */ |
352 |
if (!isalpha(*val)) /* key must start line */ |
353 |
return(0); |
354 |
/* check if we need to swap binary data */ |
355 |
if ((n = isbigendian(val)) >= 0) { |
356 |
if (nativebigendian() == n) |
357 |
return(0); |
358 |
f1swap += (htp == &hdr1); |
359 |
f2swap += (htp == &hdr2); |
360 |
return(0); |
361 |
} |
362 |
key = val++; |
363 |
while (*val && !isspace(*val) & (*val != '=')) |
364 |
val++; |
365 |
kln = val - key; |
366 |
while (isspace(*val)) /* check for value */ |
367 |
*val++ = '\0'; |
368 |
if (*val != '=') |
369 |
return(0); |
370 |
*val++ = '\0'; |
371 |
while (isspace(*val)) |
372 |
val++; |
373 |
if (!*val) /* nothing set? */ |
374 |
return(0); |
375 |
/* check if key to ignore */ |
376 |
for (n = 0; hdr_ignkey[n]; n++) |
377 |
if (!strcmp(key, hdr_ignkey[n])) |
378 |
return(0); |
379 |
vln = strlen(val); /* eliminate space and newline at end */ |
380 |
while (isspace(val[--vln])) |
381 |
; |
382 |
val[++vln] = '\0'; |
383 |
if (!(tep = lu_find(htp, key))) |
384 |
return(-1); /* memory allocation error */ |
385 |
if (!tep->key) |
386 |
tep->key = strcpy(malloc(kln+1), key); |
387 |
if (tep->data) { /* check for special cases */ |
388 |
if (!strcmp(key, "EXPOSURE")) { |
389 |
sprintf(newval, "%.6e", atof(tep->data)*atof(val)); |
390 |
vln = strlen(val = newval); |
391 |
} |
392 |
free(tep->data); |
393 |
} |
394 |
tep->data = strcpy(malloc(vln+1), val); |
395 |
return(1); |
396 |
} |
397 |
|
398 |
/* Lookup correspondent in other header */ |
399 |
static int |
400 |
match_val(const LUENT *ep1, void *p2) |
401 |
{ |
402 |
const LUENT *ep2 = lu_find((LUTAB *)p2, ep1->key); |
403 |
if (!ep2 || !ep2->data) { |
404 |
if (report != REP_QUIET) |
405 |
printf("%s: variable '%s' missing in '%s'\n", |
406 |
progname, ep1->key, f2name); |
407 |
return(-1); |
408 |
} |
409 |
if (!equiv_string((char *)ep1->data, (char *)ep2->data)) { |
410 |
if (report != REP_QUIET) { |
411 |
printf("%s: header variable '%s' has different values\n", |
412 |
progname, ep1->key); |
413 |
if (report >= REP_VERBOSE) { |
414 |
printf("%s: %s=%s\n", f1name, |
415 |
ep1->key, (char *)ep1->data); |
416 |
printf("%s: %s=%s\n", f2name, |
417 |
ep2->key, (char *)ep2->data); |
418 |
} |
419 |
} |
420 |
return(-1); |
421 |
} |
422 |
return(1); /* good match */ |
423 |
} |
424 |
|
425 |
/* Compare two sets of header variables */ |
426 |
static int |
427 |
headers_match() |
428 |
{ |
429 |
int ne = lu_doall(&hdr1, match_val, &hdr2); |
430 |
if (ne < 0) |
431 |
return(0); /* something didn't match! */ |
432 |
/* non-fatal if second header has extra */ |
433 |
if (report >= REP_WARN && (ne = lu_doall(&hdr2, NULL, NULL) - ne)) |
434 |
printf("%s: warning - '%s' has %d extra header setting(s)\n", |
435 |
progname, f2name, ne); |
436 |
return(1); /* good match */ |
437 |
} |
438 |
|
439 |
/* Check generic input to determine if it is binary, -1 on error */ |
440 |
static int |
441 |
input_is_binary(FILE *fin) |
442 |
{ |
443 |
int n = 0; |
444 |
int c = 0; |
445 |
|
446 |
while ((c = getc(fin)) != EOF) { |
447 |
++n; |
448 |
if (!c | (c > 127)) |
449 |
break; /* non-ascii character */ |
450 |
if (n >= 10240) |
451 |
break; /* enough to be confident */ |
452 |
} |
453 |
if (!n) |
454 |
return(-1); /* first read failed */ |
455 |
if (fseek(fin, 0L, 0) < 0) |
456 |
return(-1); /* rewind failed */ |
457 |
return(!c | (c > 127)); |
458 |
} |
459 |
|
460 |
/* Identify and return data type from header (if one) */ |
461 |
static int |
462 |
identify_type(const char *name, FILE *fin, LUTAB *htp) |
463 |
{ |
464 |
extern const char HDRSTR[]; |
465 |
int c; |
466 |
/* check magic header start */ |
467 |
if ((c = getc(fin)) != HDRSTR[0]) { |
468 |
if (c == EOF) goto badeof; |
469 |
ungetc(c, fin); |
470 |
c = 0; |
471 |
} else if ((c = getc(fin)) != HDRSTR[1]) { |
472 |
if (c == EOF) goto badeof; |
473 |
ungetc(c, fin); ungetc(HDRSTR[0], fin); |
474 |
c = 0; |
475 |
} |
476 |
if (c) { /* appears to have a header */ |
477 |
char sbuf[32]; |
478 |
if (!fgets(sbuf, sizeof(sbuf), fin)) |
479 |
goto badeof; |
480 |
adv_linecnt(htp); /* for #?ID string */ |
481 |
if (report >= REP_WARN && strncmp(sbuf, "RADIANCE", 8)) { |
482 |
fputs(name, stdout); |
483 |
fputs(": warning - unexpected header ID: ", stdout); |
484 |
fputs(sbuf, stdout); |
485 |
} |
486 |
if (getheader(fin, setheadvar, htp) < 0) { |
487 |
fputs(name, stderr); |
488 |
fputs(": unknown error reading header\n", stderr); |
489 |
return(-1); |
490 |
} |
491 |
adv_linecnt(htp); /* for trailing emtpy line */ |
492 |
return(xlate_type((const char *)lu_find(htp,"FORMAT")->data)); |
493 |
} |
494 |
c = input_is_binary(fin); /* else peek to see if binary */ |
495 |
if (c < 0) { |
496 |
fputs(name, stderr); |
497 |
fputs(": read/seek error\n", stderr); |
498 |
return(-1); |
499 |
} |
500 |
if (c) |
501 |
return(TYP_BINARY); |
502 |
return(TYP_TEXT); |
503 |
badeof: |
504 |
if (report != REP_QUIET) { |
505 |
fputs(name, stdout); |
506 |
fputs(": unexpected end-of-file\n", stdout); |
507 |
} |
508 |
return(-1); |
509 |
} |
510 |
|
511 |
/* Check that overall RMS error is below threshold */ |
512 |
static int |
513 |
good_RMS() |
514 |
{ |
515 |
if (!nsum) |
516 |
return(1); |
517 |
if (diff2sum/(double)nsum > rms_lim*rms_lim) { |
518 |
if (report != REP_QUIET) |
519 |
printf( |
520 |
"%s: %sRMS difference between '%s' and '%s' of %.5g exceeds limit of %.5g\n", |
521 |
progname, |
522 |
(rel_min > 0) ? "relative " : "", |
523 |
f1name, f2name, |
524 |
sqrt(diff2sum/(double)nsum), rms_lim); |
525 |
return(0); |
526 |
} |
527 |
if (report >= REP_VERBOSE) |
528 |
printf("%s: %sRMS difference of reals in '%s' and '%s' is %.5g\n", |
529 |
progname, (rel_min > 0) ? "relative " : "", |
530 |
f1name, f2name, sqrt(diff2sum/(double)nsum)); |
531 |
return(1); |
532 |
} |
533 |
|
534 |
/* Compare two inputs as generic binary files */ |
535 |
static int |
536 |
compare_binary() |
537 |
{ |
538 |
int c1=0, c2=0; |
539 |
|
540 |
if (report >= REP_VERBOSE) { |
541 |
fputs(progname, stdout); |
542 |
fputs(": comparing inputs as binary\n", stdout); |
543 |
} |
544 |
for ( ; ; ) { /* exact byte matching */ |
545 |
c1 = getc(f1in); |
546 |
c2 = getc(f2in); |
547 |
if (c1 == EOF) { |
548 |
if (c2 == EOF) |
549 |
return(1); /* success! */ |
550 |
if (report != REP_QUIET) { |
551 |
fputs(f1name, stdout); |
552 |
fputs(": unexpected end-of-file\n", stdout); |
553 |
} |
554 |
return(0); |
555 |
} |
556 |
if (c2 == EOF) { |
557 |
if (report != REP_QUIET) { |
558 |
fputs(f2name, stdout); |
559 |
fputs(": unexpected end-of-file\n", stdout); |
560 |
} |
561 |
return(0); |
562 |
} |
563 |
if (c1 != c2) |
564 |
break; /* quit and report difference */ |
565 |
} |
566 |
if (report == REP_QUIET) |
567 |
return(0); |
568 |
printf("%s: binary files '%s' and '%s' differ at byte offset %ld|%ld\n", |
569 |
progname, f1name, f2name, ftell(f1in), ftell(f2in)); |
570 |
if (report >= REP_VERBOSE) |
571 |
printf("%s: byte in '%s' is 0x%X, byte in '%s' is 0x%X\n", |
572 |
progname, f1name, c1, f2name, c2); |
573 |
return(0); |
574 |
} |
575 |
|
576 |
/* Compare two inputs as generic text files */ |
577 |
static int |
578 |
compare_text() |
579 |
{ |
580 |
LINEBUF l1buf, l2buf; |
581 |
|
582 |
if (report >= REP_VERBOSE) { |
583 |
fputs(progname, stdout); |
584 |
fputs(": comparing inputs as ASCII text", stdout); |
585 |
if (escape_newlines) |
586 |
fputs(", allowing escaped newlines", stdout); |
587 |
if (comment_c) { |
588 |
fputs(", ignoring comments starting with '", stdout); |
589 |
fputc(comment_c, stdout); |
590 |
fputc('\'', stdout); |
591 |
} |
592 |
fputc('\n', stdout); |
593 |
} |
594 |
SET_FILE_TEXT(f1in); /* originally set to binary */ |
595 |
SET_FILE_TEXT(f2in); |
596 |
init_line(&l1buf); init_line(&l2buf); /* compare a line at a time */ |
597 |
while (read_line(&l1buf, f1in)) { |
598 |
lin1cnt++; |
599 |
if (!*sskip2(l1buf.str,0)) |
600 |
continue; /* ignore empty lines */ |
601 |
|
602 |
while (read_line(&l2buf, f2in)) { |
603 |
lin2cnt++; |
604 |
if (*sskip2(l2buf.str,0)) |
605 |
break; /* found other non-empty line */ |
606 |
} |
607 |
if (!l2buf.len) { /* input 2 EOF? */ |
608 |
if (report != REP_QUIET) { |
609 |
fputs(f2name, stdout); |
610 |
fputs(": unexpected end-of-file\n", stdout); |
611 |
} |
612 |
free_line(&l1buf); free_line(&l2buf); |
613 |
return(0); |
614 |
} |
615 |
/* compare non-empty lines */ |
616 |
if (!equiv_string(l1buf.str, l2buf.str)) { |
617 |
if (report != REP_QUIET) { |
618 |
printf("%s: inputs '%s' and '%s' differ at line %d", |
619 |
progname, f1name, f2name, lin1cnt); |
620 |
if (lin1cnt != lin2cnt) |
621 |
printf("|%d\n", lin2cnt); |
622 |
else |
623 |
putchar('\n'); |
624 |
if ( report >= REP_VERBOSE && |
625 |
(l1buf.len < 256) & |
626 |
(l2buf.len < 256) ) { |
627 |
fputs("------------- Mismatch -------------\n", stdout); |
628 |
printf("%s@%d:\t%s", f1name, |
629 |
lin1cnt, l1buf.str); |
630 |
printf("%s@%d:\t%s", f2name, |
631 |
lin2cnt, l2buf.str); |
632 |
} |
633 |
} |
634 |
free_line(&l1buf); free_line(&l2buf); |
635 |
return(0); |
636 |
} |
637 |
} |
638 |
free_line(&l1buf); /* check for EOF on input 2 */ |
639 |
while (read_line(&l2buf, f2in)) { |
640 |
if (!*sskip2(l2buf.str,0)) |
641 |
continue; |
642 |
if (report != REP_QUIET) { |
643 |
fputs(f1name, stdout); |
644 |
fputs(": unexpected end-of-file\n", stdout); |
645 |
} |
646 |
free_line(&l2buf); |
647 |
return(0); |
648 |
} |
649 |
free_line(&l2buf); |
650 |
return(good_RMS()); /* final check for reals */ |
651 |
} |
652 |
|
653 |
/* Check image/map resolutions */ |
654 |
static int |
655 |
check_resolu(const char *class, RESOLU *r1p, RESOLU *r2p) |
656 |
{ |
657 |
if (r1p->rt != r2p->rt) { |
658 |
if (report != REP_QUIET) |
659 |
printf( |
660 |
"%s: %ss '%s' and '%s' have different pixel ordering\n", |
661 |
progname, class, f1name, f2name); |
662 |
return(0); |
663 |
} |
664 |
if ((r1p->xr != r2p->xr) | (r1p->yr != r2p->yr)) { |
665 |
if (report != REP_QUIET) |
666 |
printf( |
667 |
"%s: %ss '%s' and '%s' are different sizes\n", |
668 |
progname, class, f1name, f2name); |
669 |
return(0); |
670 |
} |
671 |
return(1); |
672 |
} |
673 |
|
674 |
/* Compare two inputs that are known to be RGBE or XYZE images */ |
675 |
static int |
676 |
compare_hdr() |
677 |
{ |
678 |
RESOLU rs1, rs2; |
679 |
COLOR *scan1, *scan2; |
680 |
int x, y; |
681 |
|
682 |
if (report >= REP_VERBOSE) { |
683 |
fputs(progname, stdout); |
684 |
fputs(": comparing inputs as HDR images\n", stdout); |
685 |
} |
686 |
fgetsresolu(&rs1, f1in); |
687 |
fgetsresolu(&rs2, f2in); |
688 |
if (!check_resolu("HDR image", &rs1, &rs2)) |
689 |
return(0); |
690 |
scan1 = (COLOR *)malloc(scanlen(&rs1)*sizeof(COLOR)); |
691 |
scan2 = (COLOR *)malloc(scanlen(&rs2)*sizeof(COLOR)); |
692 |
if (!scan1 | !scan2) { |
693 |
fprintf(stderr, "%s: out of memory in compare_hdr()\n", progname); |
694 |
exit(2); |
695 |
} |
696 |
for (y = 0; y < numscans(&rs1); y++) { |
697 |
if ((freadscan(scan1, scanlen(&rs1), f1in) < 0) | |
698 |
(freadscan(scan2, scanlen(&rs2), f2in) < 0)) { |
699 |
if (report != REP_QUIET) |
700 |
printf("%s: unexpected end-of-file\n", |
701 |
progname); |
702 |
free(scan1); |
703 |
free(scan2); |
704 |
return(0); |
705 |
} |
706 |
for (x = 0; x < scanlen(&rs1); x++) { |
707 |
if (color_check(scan1[x], scan2[x])) |
708 |
continue; |
709 |
if (report != REP_QUIET) { |
710 |
printf( |
711 |
"%s: pixels at scanline %d offset %d differ\n", |
712 |
progname, y, x); |
713 |
if (report >= REP_VERBOSE) { |
714 |
printf("%s: (R,G,B)=(%g,%g,%g)\n", |
715 |
f1name, colval(scan1[x],RED), |
716 |
colval(scan1[x],GRN), |
717 |
colval(scan1[x],BLU)); |
718 |
printf("%s: (R,G,B)=(%g,%g,%g)\n", |
719 |
f2name, colval(scan2[x],RED), |
720 |
colval(scan2[x],GRN), |
721 |
colval(scan2[x],BLU)); |
722 |
} |
723 |
} |
724 |
free(scan1); |
725 |
free(scan2); |
726 |
return(0); |
727 |
} |
728 |
} |
729 |
free(scan1); |
730 |
free(scan2); |
731 |
return(good_RMS()); /* final check of RMS */ |
732 |
} |
733 |
|
734 |
/* Set reference depth based on header variable */ |
735 |
static int |
736 |
set_refdepth(DEPTHCODEC *dcp, LUTAB *htp) |
737 |
{ |
738 |
static char depthvar[] = DEPTHSTR; |
739 |
const char *drval; |
740 |
|
741 |
depthvar[LDEPTHSTR-1] = '\0'; |
742 |
drval = (const char *)lu_find(htp, depthvar)->data; |
743 |
if (!drval) |
744 |
return(0); |
745 |
dcp->refdepth = atof(drval); |
746 |
if (dcp->refdepth <= 0) { |
747 |
if (report != REP_QUIET) { |
748 |
fputs(dcp->inpname, stderr); |
749 |
fputs(": bad reference depth '", stderr); |
750 |
fputs(drval, stderr); |
751 |
fputs("'\n", stderr); |
752 |
} |
753 |
return(-1); |
754 |
} |
755 |
return(1); |
756 |
} |
757 |
|
758 |
/* Compare two encoded depth maps */ |
759 |
static int |
760 |
compare_depth() |
761 |
{ |
762 |
long nread = 0; |
763 |
DEPTHCODEC dc1, dc2; |
764 |
|
765 |
if (report >= REP_VERBOSE) { |
766 |
fputs(progname, stdout); |
767 |
fputs(": comparing inputs as depth maps\n", stdout); |
768 |
} |
769 |
set_dc_defaults(&dc1); |
770 |
dc1.hdrflags = HF_RESIN; |
771 |
dc1.finp = f1in; |
772 |
dc1.inpname = f1name; |
773 |
set_dc_defaults(&dc2); |
774 |
dc2.hdrflags = HF_RESIN; |
775 |
dc2.finp = f2in; |
776 |
dc2.inpname = f2name; |
777 |
if (report != REP_QUIET) { |
778 |
dc1.hdrflags |= HF_STDERR; |
779 |
dc2.hdrflags |= HF_STDERR; |
780 |
} |
781 |
if (!process_dc_header(&dc1, 0, NULL)) |
782 |
return(0); |
783 |
if (!process_dc_header(&dc2, 0, NULL)) |
784 |
return(0); |
785 |
if (!check_resolu("Depth map", &dc1.res, &dc2.res)) |
786 |
return(0); |
787 |
if (set_refdepth(&dc1, &hdr1) < 0) |
788 |
return(0); |
789 |
if (set_refdepth(&dc2, &hdr2) < 0) |
790 |
return(0); |
791 |
while (nread < dc1.res.xr*dc1.res.yr) { |
792 |
double d1 = decode_depth_next(&dc1); |
793 |
double d2 = decode_depth_next(&dc2); |
794 |
if ((d1 < 0) | (d2 < 0)) { |
795 |
if (report != REP_QUIET) |
796 |
printf("%s: unexpected end-of-file\n", |
797 |
progname); |
798 |
return(0); |
799 |
} |
800 |
++nread; |
801 |
if (real_check(d1, d2)) |
802 |
continue; |
803 |
if (report != REP_QUIET) |
804 |
printf("%s: %ld%s depth values differ\n", |
805 |
progname, nread, num_sfx(nread)); |
806 |
return(0); |
807 |
} |
808 |
return(good_RMS()); /* final check of RMS */ |
809 |
} |
810 |
|
811 |
/* Compare two encoded normal maps */ |
812 |
static int |
813 |
compare_norm() |
814 |
{ |
815 |
long nread = 0; |
816 |
NORMCODEC nc1, nc2; |
817 |
|
818 |
if (report >= REP_VERBOSE) { |
819 |
fputs(progname, stdout); |
820 |
fputs(": comparing inputs as normal maps\n", stdout); |
821 |
} |
822 |
set_nc_defaults(&nc1); |
823 |
nc1.hdrflags = HF_RESIN; |
824 |
nc1.finp = f1in; |
825 |
nc1.inpname = f1name; |
826 |
set_nc_defaults(&nc2); |
827 |
nc2.hdrflags = HF_RESIN; |
828 |
nc2.finp = f2in; |
829 |
nc2.inpname = f2name; |
830 |
if (report != REP_QUIET) { |
831 |
nc1.hdrflags |= HF_STDERR; |
832 |
nc2.hdrflags |= HF_STDERR; |
833 |
} |
834 |
if (!process_nc_header(&nc1, 0, NULL)) |
835 |
return(0); |
836 |
if (!process_nc_header(&nc2, 0, NULL)) |
837 |
return(0); |
838 |
if (!check_resolu("Normal map", &nc1.res, &nc2.res)) |
839 |
return(0); |
840 |
while (nread < nc1.res.xr*nc1.res.yr) { |
841 |
FVECT nv1, nv2; |
842 |
int rv1 = decode_normal_next(nv1, &nc1); |
843 |
int rv2 = decode_normal_next(nv2, &nc2); |
844 |
if ((rv1 < 0) | (rv2 < 0)) { |
845 |
if (report != REP_QUIET) |
846 |
printf("%s: unexpected end-of-file\n", |
847 |
progname); |
848 |
return(0); |
849 |
} |
850 |
++nread; |
851 |
if (rv1 == rv2 && (!rv1 || norm_check(nv1, nv2))) |
852 |
continue; |
853 |
if (report != REP_QUIET) |
854 |
printf("%s: %ld%s normal vectors differ\n", |
855 |
progname, nread, num_sfx(nread)); |
856 |
return(0); |
857 |
} |
858 |
return(good_RMS()); /* final check of RMS */ |
859 |
} |
860 |
|
861 |
/* Compare two inputs that are known to be 32-bit floating-point data */ |
862 |
static int |
863 |
compare_float() |
864 |
{ |
865 |
long nread = 0; |
866 |
float f1, f2; |
867 |
|
868 |
if (report >= REP_VERBOSE) { |
869 |
fputs(progname, stdout); |
870 |
fputs(": comparing inputs as 32-bit IEEE floats\n", stdout); |
871 |
} |
872 |
while (getbinary(&f1, sizeof(f1), 1, f1in)) { |
873 |
if (!getbinary(&f2, sizeof(f2), 1, f2in)) |
874 |
goto badeof; |
875 |
++nread; |
876 |
if (f1swap) swap32((char *)&f1, 1); |
877 |
if (f2swap) swap32((char *)&f2, 1); |
878 |
if (real_check(f1, f2)) |
879 |
continue; |
880 |
if (report != REP_QUIET) |
881 |
printf("%s: %ld%s float values differ\n", |
882 |
progname, nread, num_sfx(nread)); |
883 |
return(0); |
884 |
} |
885 |
if (!getbinary(&f2, sizeof(f2), 1, f2in)) |
886 |
return(good_RMS()); /* final check of RMS */ |
887 |
badeof: |
888 |
if (report != REP_QUIET) |
889 |
printf("%s: unexpected end-of-file\n", progname); |
890 |
return(0); |
891 |
} |
892 |
|
893 |
/* Compare two inputs that are known to be 64-bit floating-point data */ |
894 |
static int |
895 |
compare_double() |
896 |
{ |
897 |
long nread = 0; |
898 |
double f1, f2; |
899 |
|
900 |
if (report >= REP_VERBOSE) { |
901 |
fputs(progname, stdout); |
902 |
fputs(": comparing inputs as 64-bit IEEE doubles\n", stdout); |
903 |
} |
904 |
while (getbinary(&f1, sizeof(f1), 1, f1in)) { |
905 |
if (!getbinary(&f2, sizeof(f2), 1, f2in)) |
906 |
goto badeof; |
907 |
++nread; |
908 |
if (f1swap) swap64((char *)&f1, 1); |
909 |
if (f2swap) swap64((char *)&f2, 1); |
910 |
if (real_check(f1, f2)) |
911 |
continue; |
912 |
if (report != REP_QUIET) |
913 |
printf("%s: %ld%s double values differ\n", |
914 |
progname, nread, num_sfx(nread)); |
915 |
return(0); |
916 |
} |
917 |
if (!getbinary(&f2, sizeof(f2), 1, f2in)) |
918 |
return(good_RMS()); /* final check of RMS */ |
919 |
badeof: |
920 |
if (report != REP_QUIET) |
921 |
printf("%s: unexpected end-of-file\n", progname); |
922 |
return(0); |
923 |
} |
924 |
|
925 |
/* Compare two Radiance files for equivalence */ |
926 |
int |
927 |
main(int argc, char *argv[]) |
928 |
{ |
929 |
int typ1, typ2; |
930 |
int a; |
931 |
|
932 |
progname = argv[0]; |
933 |
for (a = 1; a < argc && argv[a][0] == '-'; a++) { |
934 |
switch (argv[a][1]) { |
935 |
case 'h': /* ignore header info. */ |
936 |
ign_header = !ign_header; |
937 |
continue; |
938 |
case 'n': /* allow newline escapes */ |
939 |
escape_newlines = !escape_newlines; |
940 |
continue; |
941 |
case 'c': /* ignore comments */ |
942 |
comment_c = argv[a][2]; |
943 |
continue; |
944 |
case 's': /* silent operation */ |
945 |
report = REP_QUIET; |
946 |
continue; |
947 |
case 'w': /* turn off warnings */ |
948 |
if (report > REP_ERROR) |
949 |
report = REP_ERROR; |
950 |
continue; |
951 |
case 'v': /* turn on verbose mode */ |
952 |
report = REP_VERBOSE; |
953 |
continue; |
954 |
case 'm': /* maximum epsilon */ |
955 |
max_lim = atof(argv[++a]); |
956 |
continue; |
957 |
case 'r': |
958 |
if (argv[a][2] == 'e') /* relative difference */ |
959 |
rel_min = atof(argv[++a]); |
960 |
else if (argv[a][2] == 'm') /* RMS limit */ |
961 |
rms_lim = atof(argv[++a]); |
962 |
else |
963 |
usage(); |
964 |
continue; |
965 |
case '\0': /* first file from stdin */ |
966 |
f1in = stdin; |
967 |
f1name = stdin_name; |
968 |
break; |
969 |
default: |
970 |
usage(); |
971 |
} |
972 |
break; |
973 |
} |
974 |
if (a != argc-2) /* make sure of two inputs */ |
975 |
usage(); |
976 |
if (!strcmp(argv[a], argv[a+1])) { /* inputs are same? */ |
977 |
if (report >= REP_WARN) |
978 |
printf("%s: warning - identical inputs given\n", |
979 |
progname); |
980 |
return(0); |
981 |
} |
982 |
if (!f1name) f1name = argv[a]; |
983 |
if (!f2name) f2name = argv[a+1]; |
984 |
/* open inputs */ |
985 |
SET_FILE_BINARY(stdin); /* in case we're using it */ |
986 |
if (!f1in && !(f1in = fopen(f1name, "rb"))) { |
987 |
fprintf(stderr, "%s: cannot open for reading\n", f1name); |
988 |
return(2); |
989 |
} |
990 |
if (!strcmp(f2name, "-")) { |
991 |
f2in = stdin; |
992 |
f2name = stdin_name; |
993 |
} else if (!(f2in = fopen(f2name, "rb"))) { |
994 |
fprintf(stderr, "%s: cannot open for reading\n", f2name); |
995 |
return(2); |
996 |
} |
997 |
/* load headers */ |
998 |
if ((typ1 = identify_type(f1name, f1in, &hdr1)) < 0) |
999 |
return(2); |
1000 |
if ((typ2 = identify_type(f2name, f2in, &hdr2)) < 0) |
1001 |
return(2); |
1002 |
if (typ1 != typ2) { |
1003 |
if (report != REP_QUIET) |
1004 |
printf("%s: '%s' format is %s and '%s' is %s\n", |
1005 |
progname, f1name, file_type[typ1], |
1006 |
f2name, file_type[typ2]); |
1007 |
return(1); |
1008 |
} |
1009 |
ign_header |= !has_header(typ1); /* check headers if indicated */ |
1010 |
if (!ign_header && !headers_match()) |
1011 |
return(1); |
1012 |
if (!ign_header & (report >= REP_WARN)) { |
1013 |
if (lin1cnt != lin2cnt) |
1014 |
printf("%s: warning - headers are different lengths\n", |
1015 |
progname); |
1016 |
if (typ1 == TYP_UNKNOWN) |
1017 |
printf("%s: warning - unrecognized format\n", |
1018 |
progname); |
1019 |
} |
1020 |
if (report >= REP_VERBOSE) { |
1021 |
printf("%s: data format is %s\n", progname, file_type[typ1]); |
1022 |
if ((typ1 == TYP_FLOAT) | (typ1 == TYP_DOUBLE)) { |
1023 |
if (f1swap) |
1024 |
printf("%s: input '%s' is byte-swapped\n", |
1025 |
progname, f1name); |
1026 |
if (f2swap) |
1027 |
printf("%s: input '%s' is byte-swapped\n", |
1028 |
progname, f2name); |
1029 |
} |
1030 |
} |
1031 |
switch (typ1) { /* compare based on type */ |
1032 |
case TYP_BINARY: |
1033 |
case TYP_TMESH: |
1034 |
case TYP_OCTREE: |
1035 |
case TYP_RBFMESH: |
1036 |
case TYP_ID8: |
1037 |
case TYP_ID16: |
1038 |
case TYP_ID24: |
1039 |
case TYP_UNKNOWN: |
1040 |
return( !compare_binary() ); |
1041 |
case TYP_TEXT: |
1042 |
case TYP_ASCII: |
1043 |
return( !compare_text() ); |
1044 |
case TYP_RGBE: |
1045 |
case TYP_XYZE: |
1046 |
return( !compare_hdr() ); |
1047 |
case TYP_DEPTH: |
1048 |
return( !compare_depth() ); |
1049 |
case TYP_NORM: |
1050 |
return( !compare_norm() ); |
1051 |
case TYP_FLOAT: |
1052 |
return( !compare_float() ); |
1053 |
case TYP_DOUBLE: |
1054 |
return( !compare_double() ); |
1055 |
} |
1056 |
return(1); |
1057 |
} |