1 |
#ifndef lint |
2 |
static const char RCSid[] = "$Id: radcompare.c,v 2.16 2018/10/26 23:45:56 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 |
typedef struct { /* dynamic line buffer */ |
78 |
char *str; |
79 |
int len; |
80 |
int siz; |
81 |
} LINEBUF; |
82 |
|
83 |
#define init_line(bp) ((bp)->str = NULL, (bp)->siz = 0) |
84 |
/* 100 MByte limit on line buffer */ |
85 |
#define MAXBUF (100L<<20) |
86 |
|
87 |
/* input files */ |
88 |
char *progname = NULL; |
89 |
const char stdin_name[] = "<stdin>"; |
90 |
const char *f1name=NULL, *f2name=NULL; |
91 |
FILE *f1in=NULL, *f2in=NULL; |
92 |
|
93 |
/* running real differences */ |
94 |
double diff2sum = 0; |
95 |
long nsum = 0; |
96 |
|
97 |
/* Report usage and exit */ |
98 |
static void |
99 |
usage() |
100 |
{ |
101 |
fputs("Usage: ", stderr); |
102 |
fputs(progname, stderr); |
103 |
fputs(" [-h][-s|-w|-v][-rel min_test][-rms epsilon][-max epsilon] reference test\n", |
104 |
stderr); |
105 |
exit(2); |
106 |
} |
107 |
|
108 |
/* Read a text line, increasing buffer size as necessary */ |
109 |
static int |
110 |
read_line(LINEBUF *bp, FILE *fp) |
111 |
{ |
112 |
static int doneWarn = 0; |
113 |
|
114 |
bp->len = 0; |
115 |
if (!bp->str) { |
116 |
bp->str = (char *)malloc(bp->siz = 512); |
117 |
if (!bp->str) |
118 |
goto memerr; |
119 |
} |
120 |
while (fgets(bp->str + bp->len, bp->siz - bp->len, fp)) { |
121 |
bp->len += strlen(bp->str + bp->len); |
122 |
if (bp->str[bp->len-1] == '\n') |
123 |
break; /* found EOL */ |
124 |
if (bp->len < bp->siz - 4) |
125 |
continue; /* at EOF? */ |
126 |
if (bp->siz >= MAXBUF) { |
127 |
if ((report >= REP_WARN) & !doneWarn) { |
128 |
fprintf(stderr, |
129 |
"%s: warning - input line(s) past %ld MByte limit\n", |
130 |
progname, MAXBUF>>20); |
131 |
doneWarn++; |
132 |
} |
133 |
break; /* return MAXBUF partial line */ |
134 |
} |
135 |
if ((bp->siz += bp->siz/2) > MAXBUF) |
136 |
bp->siz = MAXBUF; |
137 |
bp->str = (char *)realloc(bp->str, bp->siz); |
138 |
if (!bp->str) |
139 |
goto memerr; |
140 |
} |
141 |
return(bp->len); |
142 |
memerr: |
143 |
fprintf(stderr, |
144 |
"%s: out of memory in read_line() allocating %d byte buffer\n", |
145 |
progname, bp->siz); |
146 |
exit(2); |
147 |
} |
148 |
|
149 |
/* Free line buffer */ |
150 |
static void |
151 |
free_line(LINEBUF *bp) |
152 |
{ |
153 |
if (bp->str) free(bp->str); |
154 |
init_line(bp); |
155 |
} |
156 |
|
157 |
/* Get type ID from name (or 0 if not found) */ |
158 |
static int |
159 |
xlate_type(const char *nm) |
160 |
{ |
161 |
int i; |
162 |
|
163 |
if (!nm || !*nm) |
164 |
return(TYP_UNKNOWN); |
165 |
for (i = 1; file_type[i]; i++) |
166 |
if (!strcmp(nm, file_type[i])) |
167 |
return(i); |
168 |
return(TYP_UNKNOWN); |
169 |
} |
170 |
|
171 |
/* Compare real values and keep track of differences */ |
172 |
static int |
173 |
real_check(double r1, double r2) |
174 |
{ |
175 |
double diff2 = (r1 - r2)*(r1 - r2); |
176 |
|
177 |
if (rel_min > 0) { /* doing relative differences? */ |
178 |
double av2 = .25*(r1*r1 + 2.*fabs(r1*r2) + r2*r2); |
179 |
if (av2 > rel_min*rel_min) |
180 |
diff2 /= av2; |
181 |
} |
182 |
if (max_lim >= 0 && diff2 > max_lim*max_lim) { |
183 |
if (report != REP_QUIET) |
184 |
printf( |
185 |
"%s: %sdifference between %.8g and %.8g exceeds epsilon of %.8g\n", |
186 |
progname, |
187 |
(rel_min > 0) ? "relative " : "", |
188 |
r1, r2, max_lim); |
189 |
return(0); |
190 |
} |
191 |
diff2sum += diff2; |
192 |
nsum++; |
193 |
return(1); |
194 |
} |
195 |
|
196 |
/* Compare two color values for equivalence */ |
197 |
static int |
198 |
color_check(COLOR c1, COLOR c2) |
199 |
{ |
200 |
int p; |
201 |
|
202 |
if (!real_check((colval(c1,RED)+colval(c1,GRN)+colval(c1,BLU))*(1./3.), |
203 |
(colval(c2,RED)+colval(c2,GRN)+colval(c2,BLU))*(1./3.))) |
204 |
return(0); |
205 |
|
206 |
p = (colval(c1,GRN) > colval(c1,RED)) ? GRN : RED; |
207 |
if (colval(c1,BLU) > colval(c1,p)) p = BLU; |
208 |
|
209 |
return(real_check(colval(c1,p), colval(c2,p))); |
210 |
} |
211 |
|
212 |
/* Compare two strings for equivalence */ |
213 |
static int |
214 |
equiv_string(char *s1, char *s2) |
215 |
{ |
216 |
#define CLS_STR 0 |
217 |
#define CLS_INT 1 |
218 |
#define CLS_FLT 2 |
219 |
/* skip whitespace at beginning */ |
220 |
while (isspace(*s1)) s1++; |
221 |
while (isspace(*s2)) s2++; |
222 |
while (*s1) { /* check each word */ |
223 |
int inquote; |
224 |
if (!*s2) /* unexpected EOL in s2? */ |
225 |
return(0); |
226 |
inquote = *s1; |
227 |
if ((inquote != '\'') & (inquote != '"')) |
228 |
inquote = 0; |
229 |
if (inquote) { /* quoted text must match exactly */ |
230 |
if (*s1++ != *s2++) |
231 |
return(0); |
232 |
while (*s1 != inquote) { |
233 |
if (!*s1) |
234 |
return(0); |
235 |
if (*s1++ != *s2++) |
236 |
return(0); |
237 |
} |
238 |
s1++; |
239 |
if (*s2++ != inquote) |
240 |
return(0); |
241 |
} else { /* else classify word type */ |
242 |
char *s1s = s1; |
243 |
char *s2s = s2; |
244 |
int cls = CLS_STR; |
245 |
s1 = sskip(s1); |
246 |
s2 = sskip(s2); |
247 |
if (iskip(s1s) == s1) { |
248 |
if (iskip(s2s) == s2) |
249 |
cls = CLS_INT; |
250 |
else if (fskip(s2s) == s2) |
251 |
cls = CLS_FLT; |
252 |
} else if (fskip(s1s) == s1) { |
253 |
if (fskip(s2s) != s2) |
254 |
return(0); |
255 |
cls = CLS_FLT; |
256 |
} |
257 |
switch (cls) { |
258 |
case CLS_INT: /* strncmp() faster */ |
259 |
case CLS_STR: |
260 |
if (s1 - s1s != s2 - s2s) |
261 |
return(0); |
262 |
if (strncmp(s1s, s2s, s1 - s1s)) |
263 |
return(0); |
264 |
break; |
265 |
case CLS_FLT: |
266 |
if (!real_check(atof(s1s), atof(s2s))) |
267 |
return(0); |
268 |
break; |
269 |
} |
270 |
} |
271 |
while (isspace(*s1)) s1++; |
272 |
while (isspace(*s2)) s2++; |
273 |
} |
274 |
return(!*s2); /* match if we reached the end of s2, too */ |
275 |
#undef CLS_STR |
276 |
#undef CLS_INT |
277 |
#undef CLS_FLT |
278 |
} |
279 |
|
280 |
/* Check if string is var=value pair and set if not in ignore list */ |
281 |
static int |
282 |
setheadvar(char *val, void *p) |
283 |
{ |
284 |
LUTAB *htp = (LUTAB *)p; |
285 |
LUENT *tep; |
286 |
char *key; |
287 |
int kln, vln; |
288 |
int n; |
289 |
|
290 |
adv_linecnt(htp); /* side-effect is to count lines */ |
291 |
if (!isalpha(*val)) /* key must start line */ |
292 |
return(0); |
293 |
key = val++; |
294 |
while (*val && !isspace(*val) & (*val != '=')) |
295 |
val++; |
296 |
kln = val - key; |
297 |
while (isspace(*val)) /* check for value */ |
298 |
*val++ = '\0'; |
299 |
if (*val != '=') |
300 |
return(0); |
301 |
*val++ = '\0'; |
302 |
while (isspace(*val)) |
303 |
val++; |
304 |
if (!*val) /* nothing set? */ |
305 |
return(0); |
306 |
/* check if key to ignore */ |
307 |
for (n = 0; hdr_ignkey[n]; n++) |
308 |
if (!strcmp(key, hdr_ignkey[n])) |
309 |
return(0); |
310 |
vln = strlen(val); /* eliminate space and newline at end */ |
311 |
while (isspace(val[--vln])) |
312 |
; |
313 |
val[++vln] = '\0'; |
314 |
if (!(tep = lu_find(htp, key))) |
315 |
return(-1); /* memory allocation error */ |
316 |
if (!tep->key) |
317 |
tep->key = strcpy(malloc(kln+1), key); |
318 |
if (tep->data) |
319 |
free(tep->data); |
320 |
tep->data = strcpy(malloc(vln+1), val); |
321 |
return(1); |
322 |
} |
323 |
|
324 |
/* Lookup correspondent in other header */ |
325 |
static int |
326 |
match_val(const LUENT *ep1, void *p2) |
327 |
{ |
328 |
const LUENT *ep2 = lu_find((LUTAB *)p2, ep1->key); |
329 |
if (!ep2 || !ep2->data) { |
330 |
if (report != REP_QUIET) |
331 |
printf("%s: variable '%s' missing in '%s'\n", |
332 |
progname, ep1->key, f2name); |
333 |
return(-1); |
334 |
} |
335 |
if (!equiv_string((char *)ep1->data, (char *)ep2->data)) { |
336 |
if (report != REP_QUIET) { |
337 |
printf("%s: header variable '%s' has different values\n", |
338 |
progname, ep1->key); |
339 |
if (report >= REP_VERBOSE) { |
340 |
printf("%s: %s=%s\n", f1name, |
341 |
ep1->key, (char *)ep1->data); |
342 |
printf("%s: %s=%s\n", f2name, |
343 |
ep2->key, (char *)ep2->data); |
344 |
} |
345 |
} |
346 |
return(-1); |
347 |
} |
348 |
return(1); /* good match */ |
349 |
} |
350 |
|
351 |
/* Compare two sets of header variables */ |
352 |
static int |
353 |
headers_match() |
354 |
{ |
355 |
int ne = lu_doall(&hdr1, match_val, &hdr2); |
356 |
if (ne < 0) |
357 |
return(0); /* something didn't match! */ |
358 |
/* non-fatal if second header has extra */ |
359 |
if (report >= REP_WARN && (ne = lu_doall(&hdr2, NULL, NULL) - ne)) |
360 |
printf("%s: warning - '%s' has %d extra header setting(s)\n", |
361 |
progname, f2name, ne); |
362 |
return(1); /* good match */ |
363 |
} |
364 |
|
365 |
/* Check generic input to determine if it is binary, -1 on error */ |
366 |
static int |
367 |
input_is_binary(FILE *fin) |
368 |
{ |
369 |
int n = 0; |
370 |
int c = 0; |
371 |
|
372 |
while ((c = getc(fin)) != EOF) { |
373 |
++n; |
374 |
if (!c | (c > 127)) |
375 |
break; /* non-ascii character */ |
376 |
if (n >= 10240) |
377 |
break; /* enough to be confident */ |
378 |
} |
379 |
if (!n) |
380 |
return(-1); /* first read failed */ |
381 |
if (fseek(fin, 0L, 0) < 0) |
382 |
return(-1); /* rewind failed */ |
383 |
return(!c | (c > 127)); |
384 |
} |
385 |
|
386 |
/* Identify and return data type from header (if one) */ |
387 |
static int |
388 |
identify_type(const char *name, FILE *fin, LUTAB *htp) |
389 |
{ |
390 |
extern const char HDRSTR[]; |
391 |
int c; |
392 |
/* check magic header start */ |
393 |
if ((c = getc(fin)) != HDRSTR[0]) { |
394 |
if (c == EOF) goto badeof; |
395 |
ungetc(c, fin); |
396 |
c = 0; |
397 |
} else if ((c = getc(fin)) != HDRSTR[1]) { |
398 |
if (c == EOF) goto badeof; |
399 |
ungetc(c, fin); ungetc(HDRSTR[0], fin); |
400 |
c = 0; |
401 |
} |
402 |
if (c) { /* appears to have a header */ |
403 |
char sbuf[32]; |
404 |
if (!fgets(sbuf, sizeof(sbuf), fin)) |
405 |
goto badeof; |
406 |
adv_linecnt(htp); /* for #?ID string */ |
407 |
if (report >= REP_WARN && strncmp(sbuf, "RADIANCE", 8)) { |
408 |
fputs(name, stdout); |
409 |
fputs(": warning - unexpected header ID: ", stdout); |
410 |
fputs(sbuf, stdout); |
411 |
} |
412 |
if (getheader(fin, setheadvar, htp) < 0) { |
413 |
fputs(name, stderr); |
414 |
fputs(": unknown error reading header\n", stderr); |
415 |
return(-1); |
416 |
} |
417 |
adv_linecnt(htp); /* for trailing emtpy line */ |
418 |
return(xlate_type((const char *)lu_find(htp,"FORMAT")->data)); |
419 |
} |
420 |
c = input_is_binary(fin); /* else peek to see if binary */ |
421 |
if (c < 0) { |
422 |
fputs(name, stderr); |
423 |
fputs(": read/seek error\n", stderr); |
424 |
return(-1); |
425 |
} |
426 |
if (c) |
427 |
return(TYP_BINARY); |
428 |
SET_FILE_TEXT(fin); /* originally set to binary */ |
429 |
return(TYP_TEXT); |
430 |
badeof: |
431 |
if (report != REP_QUIET) { |
432 |
fputs(name, stdout); |
433 |
fputs(": unexpected end-of-file\n", stdout); |
434 |
} |
435 |
return(-1); |
436 |
} |
437 |
|
438 |
/* Check that overall RMS error is below threshold */ |
439 |
static int |
440 |
good_RMS() |
441 |
{ |
442 |
if (!nsum) |
443 |
return(1); |
444 |
if (diff2sum/(double)nsum > rms_lim*rms_lim) { |
445 |
if (report != REP_QUIET) |
446 |
printf( |
447 |
"%s: %sRMS difference between '%s' and '%s' of %.5g exceeds limit of %.5g\n", |
448 |
progname, |
449 |
(rel_min > 0) ? "relative " : "", |
450 |
f1name, f2name, |
451 |
sqrt(diff2sum/(double)nsum), rms_lim); |
452 |
return(0); |
453 |
} |
454 |
if (report >= REP_VERBOSE) |
455 |
printf("%s: %sRMS difference of reals in '%s' and '%s' is %.5g\n", |
456 |
progname, (rel_min > 0) ? "relative " : "", |
457 |
f1name, f2name, sqrt(diff2sum/(double)nsum)); |
458 |
return(1); |
459 |
} |
460 |
|
461 |
/* Compare two inputs as generic binary files */ |
462 |
static int |
463 |
compare_binary() |
464 |
{ |
465 |
int c1=0, c2=0; |
466 |
|
467 |
if (report >= REP_VERBOSE) { |
468 |
fputs(progname, stdout); |
469 |
fputs(": comparing inputs as binary\n", stdout); |
470 |
} |
471 |
for ( ; ; ) { /* exact byte matching */ |
472 |
c1 = getc(f1in); |
473 |
c2 = getc(f2in); |
474 |
if (c1 == EOF) { |
475 |
if (c2 == EOF) |
476 |
return(1); /* success! */ |
477 |
if (report != REP_QUIET) { |
478 |
fputs(f1name, stdout); |
479 |
fputs(": unexpected end-of-file\n", stdout); |
480 |
} |
481 |
return(0); |
482 |
} |
483 |
if (c2 == EOF) { |
484 |
if (report != REP_QUIET) { |
485 |
fputs(f2name, stdout); |
486 |
fputs(": unexpected end-of-file\n", stdout); |
487 |
} |
488 |
return(0); |
489 |
} |
490 |
if (c1 != c2) |
491 |
break; /* quit and report difference */ |
492 |
} |
493 |
if (report == REP_QUIET) |
494 |
return(0); |
495 |
printf("%s: binary files '%s' and '%s' differ at byte offset %ld|%ld\n", |
496 |
progname, f1name, f2name, ftell(f1in), ftell(f2in)); |
497 |
if (report >= REP_VERBOSE) |
498 |
printf("%s: byte in '%s' is 0x%X, byte in '%s' is 0x%X\n", |
499 |
progname, f1name, c1, f2name, c2); |
500 |
return(0); |
501 |
} |
502 |
|
503 |
/* Compare two inputs as generic text files */ |
504 |
static int |
505 |
compare_text() |
506 |
{ |
507 |
LINEBUF l1buf, l2buf; |
508 |
|
509 |
if (report >= REP_VERBOSE) { |
510 |
fputs(progname, stdout); |
511 |
fputs(": comparing inputs as ASCII text\n", stdout); |
512 |
} |
513 |
init_line(&l1buf); init_line(&l2buf); /* compare a line at a time */ |
514 |
while (read_line(&l1buf, f1in)) { |
515 |
lin1cnt++; |
516 |
if (!*sskip2(l1buf.str,0)) |
517 |
continue; /* ignore empty lines */ |
518 |
|
519 |
while (read_line(&l2buf, f2in)) { |
520 |
lin2cnt++; |
521 |
if (*sskip2(l2buf.str,0)) |
522 |
break; /* found other non-empty line */ |
523 |
} |
524 |
if (!l2buf.len) { /* input 2 EOF? */ |
525 |
if (report != REP_QUIET) { |
526 |
fputs(f2name, stdout); |
527 |
fputs(": unexpected end-of-file\n", stdout); |
528 |
} |
529 |
free_line(&l1buf); free_line(&l2buf); |
530 |
return(0); |
531 |
} |
532 |
/* compare non-empty lines */ |
533 |
if (!equiv_string(l1buf.str, l2buf.str)) { |
534 |
if (report != REP_QUIET) { |
535 |
printf("%s: inputs '%s' and '%s' differ at line %d|%d\n", |
536 |
progname, f1name, f2name, |
537 |
lin1cnt, lin2cnt); |
538 |
if ( report >= REP_VERBOSE && |
539 |
(l1buf.len < 256) & |
540 |
(l2buf.len < 256) ) { |
541 |
fputs("------------- Mismatch -------------\n", stdout); |
542 |
printf("%s@%d:\t%s", f1name, |
543 |
lin1cnt, l1buf.str); |
544 |
printf("%s@%d:\t%s", f2name, |
545 |
lin2cnt, l2buf.str); |
546 |
} |
547 |
} |
548 |
free_line(&l1buf); free_line(&l2buf); |
549 |
return(0); |
550 |
} |
551 |
} |
552 |
free_line(&l1buf); /* check for EOF on input 2 */ |
553 |
while (read_line(&l2buf, f2in)) { |
554 |
if (!*sskip2(l2buf.str,0)) |
555 |
continue; |
556 |
if (report != REP_QUIET) { |
557 |
fputs(f1name, stdout); |
558 |
fputs(": unexpected end-of-file\n", stdout); |
559 |
} |
560 |
free_line(&l2buf); |
561 |
return(0); |
562 |
} |
563 |
free_line(&l2buf); |
564 |
return(good_RMS()); /* final check for reals */ |
565 |
} |
566 |
|
567 |
/* Compare two inputs that are known to be RGBE or XYZE images */ |
568 |
static int |
569 |
compare_hdr() |
570 |
{ |
571 |
RESOLU rs1, rs2; |
572 |
COLOR *scan1, *scan2; |
573 |
int x, y; |
574 |
|
575 |
if (report >= REP_VERBOSE) { |
576 |
fputs(progname, stdout); |
577 |
fputs(": comparing inputs as HDR images\n", stdout); |
578 |
} |
579 |
fgetsresolu(&rs1, f1in); |
580 |
fgetsresolu(&rs2, f2in); |
581 |
if (rs1.rt != rs2.rt) { |
582 |
if (report != REP_QUIET) |
583 |
printf( |
584 |
"%s: Images '%s' and '%s' have different pixel ordering\n", |
585 |
progname, f1name, f2name); |
586 |
return(0); |
587 |
} |
588 |
if ((rs1.xr != rs2.xr) | (rs1.yr != rs2.yr)) { |
589 |
if (report != REP_QUIET) |
590 |
printf( |
591 |
"%s: Images '%s' and '%s' are different sizes\n", |
592 |
progname, f1name, f2name); |
593 |
return(0); |
594 |
} |
595 |
scan1 = (COLOR *)malloc(scanlen(&rs1)*sizeof(COLOR)); |
596 |
scan2 = (COLOR *)malloc(scanlen(&rs2)*sizeof(COLOR)); |
597 |
if (!scan1 | !scan2) { |
598 |
fprintf(stderr, "%s: out of memory in compare_hdr()\n", progname); |
599 |
exit(2); |
600 |
} |
601 |
for (y = 0; y < numscans(&rs1); y++) { |
602 |
if ((freadscan(scan1, scanlen(&rs1), f1in) < 0) | |
603 |
(freadscan(scan2, scanlen(&rs2), f2in) < 0)) { |
604 |
if (report != REP_QUIET) |
605 |
printf("%s: unexpected end-of-file\n", |
606 |
progname); |
607 |
free(scan1); |
608 |
free(scan2); |
609 |
return(0); |
610 |
} |
611 |
for (x = 0; x < scanlen(&rs1); x++) { |
612 |
if (color_check(scan1[x], scan2[x])) |
613 |
continue; |
614 |
if (report != REP_QUIET) { |
615 |
printf( |
616 |
"%s: pixels at scanline %d offset %d differ\n", |
617 |
progname, y, x); |
618 |
if (report >= REP_VERBOSE) { |
619 |
printf("%s: (R,G,B)=(%g,%g,%g)\n", |
620 |
f1name, colval(scan1[x],RED), |
621 |
colval(scan1[x],GRN), |
622 |
colval(scan1[x],BLU)); |
623 |
printf("%s: (R,G,B)=(%g,%g,%g)\n", |
624 |
f2name, colval(scan2[x],RED), |
625 |
colval(scan2[x],GRN), |
626 |
colval(scan2[x],BLU)); |
627 |
} |
628 |
} |
629 |
free(scan1); |
630 |
free(scan2); |
631 |
return(0); |
632 |
} |
633 |
} |
634 |
free(scan1); |
635 |
free(scan2); |
636 |
return(good_RMS()); /* final check of RMS */ |
637 |
} |
638 |
|
639 |
/* Compare two inputs that are known to be 32-bit floating-point data */ |
640 |
static int |
641 |
compare_float() |
642 |
{ |
643 |
long nread = 0; |
644 |
float f1, f2; |
645 |
|
646 |
if (report >= REP_VERBOSE) { |
647 |
fputs(progname, stdout); |
648 |
fputs(": comparing inputs as 32-bit IEEE floats\n", stdout); |
649 |
} |
650 |
while (getbinary(&f1, sizeof(f1), 1, f1in)) { |
651 |
if (!getbinary(&f2, sizeof(f2), 1, f2in)) |
652 |
goto badeof; |
653 |
++nread; |
654 |
if (real_check(f1, f2)) |
655 |
continue; |
656 |
if (report != REP_QUIET) |
657 |
printf("%s: %ld%s float values differ\n", |
658 |
progname, nread, num_sfx(nread)); |
659 |
return(0); |
660 |
} |
661 |
if (!getbinary(&f2, sizeof(f2), 1, f2in)) |
662 |
return(good_RMS()); /* final check of RMS */ |
663 |
badeof: |
664 |
if (report != REP_QUIET) |
665 |
printf("%s: unexpected end-of-file\n", progname); |
666 |
return(0); |
667 |
} |
668 |
|
669 |
/* Compare two inputs that are known to be 64-bit floating-point data */ |
670 |
static int |
671 |
compare_double() |
672 |
{ |
673 |
long nread = 0; |
674 |
double f1, f2; |
675 |
|
676 |
if (report >= REP_VERBOSE) { |
677 |
fputs(progname, stdout); |
678 |
fputs(": comparing inputs as 64-bit IEEE doubles\n", stdout); |
679 |
} |
680 |
while (getbinary(&f1, sizeof(f1), 1, f1in)) { |
681 |
if (!getbinary(&f2, sizeof(f2), 1, f2in)) |
682 |
goto badeof; |
683 |
++nread; |
684 |
if (real_check(f1, f2)) |
685 |
continue; |
686 |
if (report != REP_QUIET) |
687 |
printf("%s: %ld%s double values differ\n", |
688 |
progname, nread, num_sfx(nread)); |
689 |
return(0); |
690 |
} |
691 |
if (!getbinary(&f2, sizeof(f2), 1, f2in)) |
692 |
return(good_RMS()); /* final check of RMS */ |
693 |
badeof: |
694 |
if (report != REP_QUIET) |
695 |
printf("%s: unexpected end-of-file\n", progname); |
696 |
return(0); |
697 |
} |
698 |
|
699 |
/* Compare two Radiance files for equivalence */ |
700 |
int |
701 |
main(int argc, char *argv[]) |
702 |
{ |
703 |
int typ1, typ2; |
704 |
int a; |
705 |
|
706 |
progname = argv[0]; |
707 |
for (a = 1; a < argc && argv[a][0] == '-'; a++) { |
708 |
switch (argv[a][1]) { |
709 |
case 'h': /* ignore header info. */ |
710 |
ign_header = !ign_header; |
711 |
continue; |
712 |
case 's': /* silent operation */ |
713 |
report = REP_QUIET; |
714 |
continue; |
715 |
case 'w': /* turn off warnings */ |
716 |
if (report > REP_ERROR) |
717 |
report = REP_ERROR; |
718 |
continue; |
719 |
case 'v': /* turn on verbose mode */ |
720 |
report = REP_VERBOSE; |
721 |
continue; |
722 |
case 'm': /* maximum epsilon */ |
723 |
max_lim = atof(argv[++a]); |
724 |
continue; |
725 |
case 'r': |
726 |
if (argv[a][2] == 'e') /* relative difference */ |
727 |
rel_min = atof(argv[++a]); |
728 |
else if (argv[a][2] == 'm') /* RMS limit */ |
729 |
rms_lim = atof(argv[++a]); |
730 |
else |
731 |
usage(); |
732 |
continue; |
733 |
case '\0': /* first file from stdin */ |
734 |
f1in = stdin; |
735 |
f1name = stdin_name; |
736 |
break; |
737 |
default: |
738 |
usage(); |
739 |
} |
740 |
break; |
741 |
} |
742 |
if (a != argc-2) /* make sure of two inputs */ |
743 |
usage(); |
744 |
if (!strcmp(argv[a], argv[a+1])) { /* inputs are same? */ |
745 |
if (report >= REP_WARN) |
746 |
printf("%s: warning - identical inputs given\n", |
747 |
progname); |
748 |
return(0); |
749 |
} |
750 |
if (!f1name) f1name = argv[a]; |
751 |
if (!f2name) f2name = argv[a+1]; |
752 |
/* open inputs */ |
753 |
SET_FILE_BINARY(stdin); /* in case we're using it */ |
754 |
if (!f1in && !(f1in = fopen(f1name, "rb"))) { |
755 |
fprintf(stderr, "%s: cannot open for reading\n", f1name); |
756 |
return(2); |
757 |
} |
758 |
if (!strcmp(f2name, "-")) { |
759 |
f2in = stdin; |
760 |
f2name = stdin_name; |
761 |
} else if (!(f2in = fopen(f2name, "rb"))) { |
762 |
fprintf(stderr, "%s: cannot open for reading\n", f2name); |
763 |
return(2); |
764 |
} |
765 |
/* load headers */ |
766 |
if ((typ1 = identify_type(f1name, f1in, &hdr1)) < 0) |
767 |
return(2); |
768 |
if ((typ2 = identify_type(f2name, f2in, &hdr2)) < 0) |
769 |
return(2); |
770 |
if (typ1 != typ2) { |
771 |
if (report != REP_QUIET) |
772 |
printf("%s: '%s' is %s and '%s' is %s\n", |
773 |
progname, f1name, file_type[typ1], |
774 |
f2name, file_type[typ2]); |
775 |
return(1); |
776 |
} |
777 |
ign_header |= !has_header(typ1); /* check headers if indicated */ |
778 |
if (!ign_header && !headers_match()) |
779 |
return(1); |
780 |
lu_done(&hdr1); lu_done(&hdr2); /* done with header info. */ |
781 |
if (!ign_header & (report >= REP_WARN)) { |
782 |
if (lin1cnt != lin2cnt) |
783 |
printf("%s: warning - headers are different lengths\n", |
784 |
progname); |
785 |
if (typ1 == TYP_UNKNOWN) |
786 |
printf("%s: warning - unrecognized format\n", |
787 |
progname); |
788 |
} |
789 |
if (report >= REP_VERBOSE) |
790 |
printf("%s: input file type is %s\n", |
791 |
progname, file_type[typ1]); |
792 |
|
793 |
switch (typ1) { /* compare based on type */ |
794 |
case TYP_BINARY: |
795 |
case TYP_TMESH: |
796 |
case TYP_OCTREE: |
797 |
case TYP_RBFMESH: |
798 |
case TYP_UNKNOWN: |
799 |
return( !compare_binary() ); |
800 |
case TYP_TEXT: |
801 |
case TYP_ASCII: |
802 |
return( !compare_text() ); |
803 |
case TYP_RGBE: |
804 |
case TYP_XYZE: |
805 |
return( !compare_hdr() ); |
806 |
case TYP_FLOAT: |
807 |
return( !compare_float() ); |
808 |
case TYP_DOUBLE: |
809 |
return( !compare_double() ); |
810 |
} |
811 |
return(1); |
812 |
} |