| 1 |
#ifndef lint |
| 2 |
static const char RCSid[] = "$Id: radcompare.c,v 2.3 2018/10/15 18:31:15 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 |
/* file types */ |
| 37 |
const char *file_type[] = { |
| 38 |
"Unrecognized", |
| 39 |
"TEXT_generic", |
| 40 |
"ascii", |
| 41 |
COLRFMT, |
| 42 |
CIEFMT, |
| 43 |
"float", |
| 44 |
"double", |
| 45 |
"BSDF_RBFmesh", |
| 46 |
"Radiance_octree", |
| 47 |
"Radiance_tmesh", |
| 48 |
"BINARY_unknown", |
| 49 |
NULL /* terminator */ |
| 50 |
}; |
| 51 |
|
| 52 |
enum {TYP_UNKNOWN, TYP_TEXT, TYP_ASCII, TYP_RGBE, TYP_XYZE, TYP_FLOAT, |
| 53 |
TYP_DOUBLE, TYP_RBFMESH, TYP_OCTREE, TYP_TMESH, TYP_BINARY}; |
| 54 |
|
| 55 |
#define has_header(t) (!( 1L<<(t) & (1L<<TYP_TEXT | 1L<<TYP_BINARY) )) |
| 56 |
|
| 57 |
/* header variables to always ignore */ |
| 58 |
const char *hdr_ignkey[] = { |
| 59 |
"SOFTWARE", |
| 60 |
"CAPDATE", |
| 61 |
"GMT", |
| 62 |
NULL /* terminator */ |
| 63 |
}; |
| 64 |
/* header variable settings */ |
| 65 |
LUTAB hdr1 = LU_SINIT(free,free); |
| 66 |
LUTAB hdr2 = LU_SINIT(free,free); |
| 67 |
|
| 68 |
/* advance appropriate file line count */ |
| 69 |
#define adv_linecnt(htp) (lin1cnt += (htp == &hdr1), \ |
| 70 |
lin2cnt += (htp == &hdr2)) |
| 71 |
|
| 72 |
/* input files */ |
| 73 |
char *progname = NULL; |
| 74 |
const char stdin_name[] = "<stdin>"; |
| 75 |
const char *f1name=NULL, *f2name=NULL; |
| 76 |
FILE *f1in=NULL, *f2in=NULL; |
| 77 |
|
| 78 |
/* running real differences */ |
| 79 |
double diff2sum = 0; |
| 80 |
int nsum = 0; |
| 81 |
|
| 82 |
/* Report usage and exit */ |
| 83 |
static void |
| 84 |
usage() |
| 85 |
{ |
| 86 |
fputs("Usage: ", stderr); |
| 87 |
fputs(progname, stderr); |
| 88 |
fputs(" [-h][-s|-w|-v][-rel min_test][-rms epsilon][-max epsilon] reference test\n", |
| 89 |
stderr); |
| 90 |
exit(1); |
| 91 |
} |
| 92 |
|
| 93 |
/* Get type ID from name (or 0 if not found) */ |
| 94 |
static int |
| 95 |
xlate_type(const char *nm) |
| 96 |
{ |
| 97 |
int i; |
| 98 |
|
| 99 |
if (!nm || !*nm) |
| 100 |
return(TYP_UNKNOWN); |
| 101 |
for (i = 1; file_type[i]; i++) |
| 102 |
if (!strcmp(nm, file_type[i])) |
| 103 |
return(i); |
| 104 |
return(TYP_UNKNOWN); |
| 105 |
} |
| 106 |
|
| 107 |
/* Compare real values and keep track of differences */ |
| 108 |
static int |
| 109 |
real_check(double r1, double r2) |
| 110 |
{ |
| 111 |
double diff2 = (r1 - r2)*(r1 - r2); |
| 112 |
|
| 113 |
if (rel_min > 0) { /* doing relative differences? */ |
| 114 |
double av2 = .25*(r1*r1 + 2.*fabs(r1*r2) + r2*r2); |
| 115 |
if (av2 > rel_min*rel_min) |
| 116 |
diff2 /= av2; |
| 117 |
} |
| 118 |
if (max_lim >= 0 && diff2 > max_lim*max_lim) { |
| 119 |
if (report != REP_QUIET) |
| 120 |
printf( |
| 121 |
"%s: %sdifference between %.8g and %.8g exceeds epsilon\n", |
| 122 |
progname, |
| 123 |
(rel_min > 0) ? "relative " : "", |
| 124 |
r1, r2); |
| 125 |
return(0); |
| 126 |
} |
| 127 |
diff2sum += diff2; |
| 128 |
nsum++; |
| 129 |
return(1); |
| 130 |
} |
| 131 |
|
| 132 |
/* Compare two strings for equivalence */ |
| 133 |
static int |
| 134 |
equiv_string(char *s1, char *s2) |
| 135 |
{ |
| 136 |
#define CLS_STR 0 |
| 137 |
#define CLS_INT 1 |
| 138 |
#define CLS_FLT 2 |
| 139 |
/* skip whitespace at beginning */ |
| 140 |
while (isspace(*s1)) s1++; |
| 141 |
while (isspace(*s2)) s2++; |
| 142 |
while (*s1) { /* check each word */ |
| 143 |
int inquote; |
| 144 |
if (!*s2) /* unexpected EOL in s2? */ |
| 145 |
return(0); |
| 146 |
inquote = *s1; |
| 147 |
if ((inquote != '\'') & (inquote != '"')) |
| 148 |
inquote = 0; |
| 149 |
if (inquote) { /* quoted text must match exactly */ |
| 150 |
if (*s1++ != *s2++) |
| 151 |
return(0); |
| 152 |
while (*s1 != inquote) { |
| 153 |
if (!*s1) |
| 154 |
return(0); |
| 155 |
if (*s1++ != *s2++) |
| 156 |
return(0); |
| 157 |
} |
| 158 |
s1++; |
| 159 |
if (*s2++ != inquote) |
| 160 |
return(0); |
| 161 |
} else { /* else classify word type */ |
| 162 |
char *s1s = s1; |
| 163 |
char *s2s = s2; |
| 164 |
int cls = CLS_STR; |
| 165 |
s1 = sskip(s1); |
| 166 |
s2 = sskip(s2); |
| 167 |
if (iskip(s1s) == s1) { |
| 168 |
if (iskip(s2s) == s2) |
| 169 |
cls = CLS_INT; |
| 170 |
else if (fskip(s2s) == s2) |
| 171 |
cls = CLS_FLT; |
| 172 |
} else if (fskip(s1s) == s1) { |
| 173 |
if (fskip(s2s) != s2) |
| 174 |
return(0); |
| 175 |
cls = CLS_FLT; |
| 176 |
} |
| 177 |
switch (cls) { |
| 178 |
case CLS_INT: /* strncmp() faster */ |
| 179 |
case CLS_STR: |
| 180 |
if (s1 - s1s != s2 - s2s) |
| 181 |
return(0); |
| 182 |
if (strncmp(s1s, s2s, s1 - s1s)) |
| 183 |
return(0); |
| 184 |
break; |
| 185 |
case CLS_FLT: |
| 186 |
if (!real_check(atof(s1s), atof(s2s))) |
| 187 |
return(0); |
| 188 |
break; |
| 189 |
} |
| 190 |
} |
| 191 |
while (isspace(*s1)) s1++; |
| 192 |
while (isspace(*s2)) s2++; |
| 193 |
} |
| 194 |
return(!*s2); /* match if we reached the end of s2, too */ |
| 195 |
#undef CLS_STR |
| 196 |
#undef CLS_INT |
| 197 |
#undef CLS_FLT |
| 198 |
} |
| 199 |
|
| 200 |
/* Check if string is var=value pair and set if not in ignore list */ |
| 201 |
static int |
| 202 |
setheadvar(char *val, void *p) |
| 203 |
{ |
| 204 |
LUTAB *htp = (LUTAB *)p; |
| 205 |
LUENT *tep; |
| 206 |
char *key; |
| 207 |
int kln, vln; |
| 208 |
int n; |
| 209 |
|
| 210 |
adv_linecnt(htp); /* side-effect is to count lines */ |
| 211 |
if (!isalpha(*val)) /* key must start line */ |
| 212 |
return(0); |
| 213 |
key = val++; |
| 214 |
while (*val && !isspace(*val) & (*val != '=')) |
| 215 |
val++; |
| 216 |
kln = val - key; |
| 217 |
while (isspace(*val)) /* check for value */ |
| 218 |
*val++ = '\0'; |
| 219 |
if (*val != '=') |
| 220 |
return(0); |
| 221 |
*val++ = '\0'; |
| 222 |
while (isspace(*val)) |
| 223 |
val++; |
| 224 |
if (!*val) /* nothing set? */ |
| 225 |
return(0); |
| 226 |
vln = strlen(val); /* eliminate space and newline at end */ |
| 227 |
while (--vln > 0 && isspace(val[vln])) |
| 228 |
; |
| 229 |
val[++vln] = '\0'; |
| 230 |
/* check if key to ignore */ |
| 231 |
for (n = 0; hdr_ignkey[n]; n++) |
| 232 |
if (!strcmp(key, hdr_ignkey[n])) |
| 233 |
return(0); |
| 234 |
if (!(tep = lu_find(htp, key))) |
| 235 |
return(-1); /* memory allocation error */ |
| 236 |
if (!tep->key) |
| 237 |
tep->key = strcpy(malloc(kln+1), key); |
| 238 |
if (tep->data) |
| 239 |
free(tep->data); |
| 240 |
tep->data = strcpy(malloc(vln+1), val); |
| 241 |
return(1); |
| 242 |
} |
| 243 |
|
| 244 |
/* Lookup correspondent in other header */ |
| 245 |
static int |
| 246 |
match_val(const LUENT *ep1, void *p2) |
| 247 |
{ |
| 248 |
const LUENT *ep2 = lu_find((LUTAB *)p2, ep1->key); |
| 249 |
if (!ep2 || !ep2->data) { |
| 250 |
if (report != REP_QUIET) |
| 251 |
printf("%s: Variable '%s' missing in '%s'\n", |
| 252 |
progname, ep1->key, f2name); |
| 253 |
return(-1); |
| 254 |
} |
| 255 |
if (!equiv_string((char *)ep1->data, (char *)ep2->data)) { |
| 256 |
if (report != REP_QUIET) { |
| 257 |
printf("%s: Header variable '%s' has different values\n", |
| 258 |
progname, ep1->key); |
| 259 |
if (report >= REP_VERBOSE) { |
| 260 |
printf("%s: %s=%s\n", f1name, |
| 261 |
ep1->key, (char *)ep1->data); |
| 262 |
printf("%s: %s=%s\n", f2name, |
| 263 |
ep2->key, (char *)ep2->data); |
| 264 |
} |
| 265 |
} |
| 266 |
return(-1); |
| 267 |
} |
| 268 |
return(1); /* good match */ |
| 269 |
} |
| 270 |
|
| 271 |
/* Compare two sets of header variables */ |
| 272 |
static int |
| 273 |
headers_match(LUTAB *hp1, LUTAB *hp2) |
| 274 |
{ |
| 275 |
int ne = lu_doall(hp1, match_val, hp2); |
| 276 |
if (ne < 0) |
| 277 |
return(0); /* something didn't match! */ |
| 278 |
/* non-fatal if second header has extra */ |
| 279 |
if (report >= REP_WARN && (ne = lu_doall(hp2, NULL, NULL) - ne)) |
| 280 |
printf("%s: '%s' has %d extra header setting(s)\n", |
| 281 |
progname, f2name, ne); |
| 282 |
return(1); /* good match */ |
| 283 |
} |
| 284 |
|
| 285 |
/* Check generic input to determine if it is binary, -1 on error */ |
| 286 |
static int |
| 287 |
input_is_binary(FILE *fin) |
| 288 |
{ |
| 289 |
int n = 0; |
| 290 |
int c = 0; |
| 291 |
|
| 292 |
while ((c = getc(fin)) != EOF) { |
| 293 |
if (!c | (c > 127)) |
| 294 |
break; /* non-ascii character */ |
| 295 |
if (++n >= 10240) |
| 296 |
break; /* enough to be confident */ |
| 297 |
} |
| 298 |
if (!n) |
| 299 |
return(-1); /* first read failed */ |
| 300 |
if (fseek(fin, 0L, 0) < 0) |
| 301 |
return(-1); /* rewind failed */ |
| 302 |
return(!c | (c > 127)); |
| 303 |
} |
| 304 |
|
| 305 |
/* Identify and return data type from header (if one) */ |
| 306 |
static int |
| 307 |
identify_type(const char *name, FILE *fin, LUTAB *htp) |
| 308 |
{ |
| 309 |
extern const char HDRSTR[]; |
| 310 |
int c; |
| 311 |
/* check magic header start */ |
| 312 |
if ((c = getc(fin)) != HDRSTR[0]) { |
| 313 |
if (c == EOF) goto badeof; |
| 314 |
ungetc(c, fin); |
| 315 |
c = 0; |
| 316 |
} else if ((c = getc(fin)) != HDRSTR[1]) { |
| 317 |
if (c == EOF) goto badeof; |
| 318 |
ungetc(c, fin); ungetc(HDRSTR[0], fin); |
| 319 |
c = 0; |
| 320 |
} |
| 321 |
if (c) { /* appears to have a header */ |
| 322 |
char sbuf[32]; |
| 323 |
if (!fgets(sbuf, sizeof(sbuf), fin)) |
| 324 |
goto badeof; |
| 325 |
adv_linecnt(htp); /* for #?ID string */ |
| 326 |
if (report >= REP_WARN && strncmp(sbuf, "RADIANCE", 8)) { |
| 327 |
fputs(name, stdout); |
| 328 |
fputs(": warning - unexpected header ID: ", stdout); |
| 329 |
fputs(sbuf, stdout); |
| 330 |
} |
| 331 |
if (getheader(fin, setheadvar, htp) < 0) { |
| 332 |
fputs(name, stderr); |
| 333 |
fputs(": Unknown error reading header\n", stderr); |
| 334 |
return(-1); |
| 335 |
} |
| 336 |
adv_linecnt(htp); /* for trailing emtpy line */ |
| 337 |
return(xlate_type((const char *)lu_find(htp,"FORMAT")->data)); |
| 338 |
} |
| 339 |
c = input_is_binary(fin); /* else peek to see if binary */ |
| 340 |
if (c < 0) { |
| 341 |
fputs(name, stderr); |
| 342 |
fputs(": read/seek error\n", stderr); |
| 343 |
return(-1); |
| 344 |
} |
| 345 |
if (c) |
| 346 |
return(TYP_BINARY); |
| 347 |
SET_FILE_TEXT(fin); /* originally set to binary */ |
| 348 |
return(TYP_TEXT); |
| 349 |
badeof: |
| 350 |
if (report != REP_QUIET) { |
| 351 |
fputs(name, stdout); |
| 352 |
fputs(": Unexpected end-of-file\n", stdout); |
| 353 |
} |
| 354 |
return(-1); |
| 355 |
} |
| 356 |
|
| 357 |
/* Check that overall RMS error is below threshold */ |
| 358 |
static int |
| 359 |
good_RMS() |
| 360 |
{ |
| 361 |
if (!nsum) |
| 362 |
return(1); |
| 363 |
if (diff2sum/(double)nsum > rms_lim*rms_lim) { |
| 364 |
if (report != REP_QUIET) |
| 365 |
printf( |
| 366 |
"%s: %sRMS difference between '%s' and '%s' of %.5g exceeds limit\n", |
| 367 |
progname, |
| 368 |
(rel_min > 0) ? "relative " : "", |
| 369 |
f1name, f2name, |
| 370 |
sqrt(diff2sum/(double)nsum)); |
| 371 |
return(0); |
| 372 |
} |
| 373 |
if (report >= REP_VERBOSE) |
| 374 |
printf("%s: %sRMS difference of reals in '%s' and '%s' is %.5g\n", |
| 375 |
progname, (rel_min > 0) ? "relative " : "", |
| 376 |
f1name, f2name, sqrt(diff2sum/(double)nsum)); |
| 377 |
return(1); |
| 378 |
} |
| 379 |
|
| 380 |
/* Compare two inputs as generic binary files */ |
| 381 |
static int |
| 382 |
compare_binary() |
| 383 |
{ |
| 384 |
if (report >= REP_VERBOSE) { |
| 385 |
fputs(progname, stdout); |
| 386 |
fputs(": comparing inputs as binary\n", stdout); |
| 387 |
} |
| 388 |
for ( ; ; ) { /* exact byte matching */ |
| 389 |
int c1 = getc(f1in); |
| 390 |
int c2 = getc(f2in); |
| 391 |
if (c1 == EOF) { |
| 392 |
if (c2 == EOF) |
| 393 |
return(1); /* success! */ |
| 394 |
if (report != REP_QUIET) { |
| 395 |
fputs(f1name, stdout); |
| 396 |
fputs(": Unexpected end-of-file\n", stdout); |
| 397 |
} |
| 398 |
return(0); |
| 399 |
} |
| 400 |
if (c2 == EOF) { |
| 401 |
if (report != REP_QUIET) { |
| 402 |
fputs(f2name, stdout); |
| 403 |
fputs(": Unexpected end-of-file\n", stdout); |
| 404 |
} |
| 405 |
return(0); |
| 406 |
} |
| 407 |
if (c1 != c2) |
| 408 |
break; /* quit and report difference */ |
| 409 |
} |
| 410 |
if (report == REP_QUIET) |
| 411 |
return(0); |
| 412 |
printf("%s: binary files '%s' and '%s' differ at offset %ld|%ld\n", |
| 413 |
progname, f1name, f2name, ftell(f1in), ftell(f2in)); |
| 414 |
return(0); |
| 415 |
} |
| 416 |
|
| 417 |
/* Compare two inputs as generic text files */ |
| 418 |
static int |
| 419 |
compare_text() |
| 420 |
{ |
| 421 |
char l1buf[4096], l2buf[4096]; |
| 422 |
|
| 423 |
if (report >= REP_VERBOSE) { |
| 424 |
fputs(progname, stdout); |
| 425 |
fputs(": comparing inputs as ASCII text\n", stdout); |
| 426 |
} |
| 427 |
/* compare a line at a time */ |
| 428 |
while (fgets(l1buf, sizeof(l1buf), f1in)) { |
| 429 |
lin1cnt++; |
| 430 |
if (!*sskip2(l1buf,0)) |
| 431 |
continue; /* ignore empty lines */ |
| 432 |
while (fgets(l2buf, sizeof(l2buf), f2in)) { |
| 433 |
lin2cnt++; |
| 434 |
if (*sskip2(l2buf,0)) |
| 435 |
break; /* found other non-empty line */ |
| 436 |
} |
| 437 |
if (feof(f2in)) { |
| 438 |
if (report != REP_QUIET) { |
| 439 |
fputs(f2name, stdout); |
| 440 |
fputs(": Unexpected end-of-file\n", stdout); |
| 441 |
} |
| 442 |
return(0); |
| 443 |
} |
| 444 |
/* compare non-empty lines */ |
| 445 |
if (!equiv_string(l1buf, l2buf)) { |
| 446 |
if (report != REP_QUIET) { |
| 447 |
printf("%s: inputs '%s' and '%s' differ at line %d|%d\n", |
| 448 |
progname, f1name, f2name, |
| 449 |
lin1cnt, lin2cnt); |
| 450 |
if (report >= REP_VERBOSE) { |
| 451 |
fputs("------------- Mismatch -------------\n", stdout); |
| 452 |
printf("%s(%d):\t%s", f1name, |
| 453 |
lin1cnt, l1buf); |
| 454 |
printf("%s(%d):\t%s", f2name, |
| 455 |
lin2cnt, l2buf); |
| 456 |
} |
| 457 |
} |
| 458 |
return(0); |
| 459 |
} |
| 460 |
} |
| 461 |
/* check for EOF on input 2 */ |
| 462 |
while (fgets(l2buf, sizeof(l2buf), f2in)) { |
| 463 |
if (!*sskip2(l2buf,0)) |
| 464 |
continue; |
| 465 |
if (report != REP_QUIET) { |
| 466 |
fputs(f1name, stdout); |
| 467 |
fputs(": Unexpected end-of-file\n", stdout); |
| 468 |
} |
| 469 |
return(0); |
| 470 |
} |
| 471 |
return(good_RMS()); /* final check for reals */ |
| 472 |
} |
| 473 |
|
| 474 |
/* Compare two inputs that are known to be RGBE or XYZE images */ |
| 475 |
static int |
| 476 |
compare_hdr() |
| 477 |
{ |
| 478 |
RESOLU rs1, rs2; |
| 479 |
COLOR *scan1, *scan2; |
| 480 |
int x, y; |
| 481 |
|
| 482 |
fgetsresolu(&rs1, f1in); |
| 483 |
fgetsresolu(&rs2, f2in); |
| 484 |
if (rs1.rt != rs2.rt) { |
| 485 |
if (report != REP_QUIET) |
| 486 |
printf( |
| 487 |
"%s: Images '%s' and '%s' have different pixel ordering\n", |
| 488 |
progname, f1name, f2name); |
| 489 |
return(0); |
| 490 |
} |
| 491 |
if ((rs1.xr != rs2.xr) | (rs1.yr != rs2.yr)) { |
| 492 |
if (report != REP_QUIET) |
| 493 |
printf( |
| 494 |
"%s: Images '%s' and '%s' are different sizes\n", |
| 495 |
progname, f1name, f2name); |
| 496 |
return(0); |
| 497 |
} |
| 498 |
scan1 = (COLOR *)malloc(scanlen(&rs1)*sizeof(COLOR)); |
| 499 |
scan2 = (COLOR *)malloc(scanlen(&rs2)*sizeof(COLOR)); |
| 500 |
if (!scan1 | !scan2) { |
| 501 |
fprintf(stderr, "%s: out of memory in compare_hdr()\n", progname); |
| 502 |
exit(2); |
| 503 |
} |
| 504 |
for (y = 0; y < numscans(&rs1); y++) { |
| 505 |
if ((freadscan(scan1, scanlen(&rs1), f1in) < 0) | |
| 506 |
(freadscan(scan2, scanlen(&rs2), f2in) < 0)) { |
| 507 |
if (report != REP_QUIET) |
| 508 |
printf("%s: Unexpected end-of-file\n", |
| 509 |
progname); |
| 510 |
free(scan1); |
| 511 |
free(scan2); |
| 512 |
return(0); |
| 513 |
} |
| 514 |
for (x = scanlen(&rs1); x--; ) { |
| 515 |
if (real_check(colval(scan1[x],RED), |
| 516 |
colval(scan2[x],RED)) & |
| 517 |
real_check(colval(scan1[x],GRN), |
| 518 |
colval(scan2[x],GRN)) & |
| 519 |
real_check(colval(scan1[x],BLU), |
| 520 |
colval(scan2[x],BLU))) |
| 521 |
continue; |
| 522 |
if (report != REP_QUIET) { |
| 523 |
printf( |
| 524 |
"%s: pixels at scanline %d offset %d differ\n", |
| 525 |
progname, y, x); |
| 526 |
if (report >= REP_VERBOSE) { |
| 527 |
printf("%s: (R,G,B)=(%g,%g,%g)\n", |
| 528 |
f1name, colval(scan1[x],RED), |
| 529 |
colval(scan1[x],GRN), |
| 530 |
colval(scan1[x],BLU)); |
| 531 |
printf("%s: (R,G,B)=(%g,%g,%g)\n", |
| 532 |
f2name, colval(scan2[x],RED), |
| 533 |
colval(scan2[x],GRN), |
| 534 |
colval(scan2[x],BLU)); |
| 535 |
} |
| 536 |
} |
| 537 |
free(scan1); |
| 538 |
free(scan2); |
| 539 |
return(0); |
| 540 |
} |
| 541 |
} |
| 542 |
free(scan1); |
| 543 |
free(scan2); |
| 544 |
return(good_RMS()); /* final check of RMS */ |
| 545 |
} |
| 546 |
|
| 547 |
const char nsuffix[10][3] = { /* 1st, 2nd, 3rd, etc. */ |
| 548 |
"th","st","nd","rd","th","th","th","th","th","th" |
| 549 |
}; |
| 550 |
|
| 551 |
/* Compare two inputs that are known to be 32-bit floating-point data */ |
| 552 |
static int |
| 553 |
compare_float() |
| 554 |
{ |
| 555 |
long nread = 0; |
| 556 |
float f1, f2; |
| 557 |
|
| 558 |
while (getbinary(&f1, sizeof(f1), 1, f1in)) { |
| 559 |
if (!getbinary(&f2, sizeof(f2), 1, f2in)) |
| 560 |
goto badeof; |
| 561 |
++nread; |
| 562 |
if (real_check(f1, f2)) |
| 563 |
continue; |
| 564 |
if (report != REP_QUIET) |
| 565 |
printf("%s: %ld%s float values differ\n", |
| 566 |
progname, nread, nsuffix[nread%10]); |
| 567 |
return(0); |
| 568 |
} |
| 569 |
if (!getbinary(&f2, sizeof(f2), 1, f2in)) |
| 570 |
return(good_RMS()); /* final check of RMS */ |
| 571 |
badeof: |
| 572 |
if (report != REP_QUIET) |
| 573 |
printf("%s: Unexpected end-of-file\n", progname); |
| 574 |
return(0); |
| 575 |
} |
| 576 |
|
| 577 |
/* Compare two inputs that are known to be 64-bit floating-point data */ |
| 578 |
static int |
| 579 |
compare_double() |
| 580 |
{ |
| 581 |
long nread = 0; |
| 582 |
double f1, f2; |
| 583 |
|
| 584 |
while (getbinary(&f1, sizeof(f1), 1, f1in)) { |
| 585 |
if (!getbinary(&f2, sizeof(f2), 1, f2in)) |
| 586 |
goto badeof; |
| 587 |
++nread; |
| 588 |
if (real_check(f1, f2)) |
| 589 |
continue; |
| 590 |
if (report != REP_QUIET) |
| 591 |
printf("%s: %ld%s float values differ\n", |
| 592 |
progname, nread, nsuffix[nread%10]); |
| 593 |
return(0); |
| 594 |
} |
| 595 |
if (!getbinary(&f2, sizeof(f2), 1, f2in)) |
| 596 |
return(good_RMS()); /* final check of RMS */ |
| 597 |
badeof: |
| 598 |
if (report != REP_QUIET) |
| 599 |
printf("%s: Unexpected end-of-file\n", progname); |
| 600 |
return(0); |
| 601 |
} |
| 602 |
|
| 603 |
/* Compare two Radiance files for equivalence */ |
| 604 |
int |
| 605 |
main(int argc, char *argv[]) |
| 606 |
{ |
| 607 |
int typ1, typ2; |
| 608 |
int a; |
| 609 |
|
| 610 |
progname = argv[0]; |
| 611 |
for (a = 1; a < argc && argv[a][0] == '-'; a++) { |
| 612 |
switch (argv[a][1]) { |
| 613 |
case 'h': /* ignore header info. */ |
| 614 |
ign_header = !ign_header; |
| 615 |
continue; |
| 616 |
case 's': /* silent operation */ |
| 617 |
report = REP_QUIET; |
| 618 |
continue; |
| 619 |
case 'w': /* turn off warnings */ |
| 620 |
if (report > REP_ERROR) |
| 621 |
report = REP_ERROR; |
| 622 |
continue; |
| 623 |
case 'v': /* turn on verbose mode */ |
| 624 |
report = REP_VERBOSE; |
| 625 |
continue; |
| 626 |
case 'm': /* maximum epsilon */ |
| 627 |
max_lim = atof(argv[++a]); |
| 628 |
continue; |
| 629 |
case 'r': |
| 630 |
if (argv[a][2] == 'e') /* relative difference */ |
| 631 |
rel_min = atof(argv[++a]); |
| 632 |
else if (argv[a][2] == 'm') /* RMS limit */ |
| 633 |
rms_lim = atof(argv[++a]); |
| 634 |
else |
| 635 |
usage(); |
| 636 |
continue; |
| 637 |
case '\0': /* first file from stdin */ |
| 638 |
f1in = stdin; |
| 639 |
f1name = stdin_name; |
| 640 |
break; |
| 641 |
default: |
| 642 |
usage(); |
| 643 |
} |
| 644 |
break; |
| 645 |
} |
| 646 |
if (a != argc-2) |
| 647 |
usage(); |
| 648 |
if (!f1name) f1name = argv[a]; |
| 649 |
if (!f2name) f2name = argv[a+1]; |
| 650 |
|
| 651 |
if (!strcmp(f1name, f2name)) { /* inputs are same? */ |
| 652 |
if (report >= REP_WARN) |
| 653 |
printf("%s: warning - identical inputs given\n", |
| 654 |
progname); |
| 655 |
return(0); |
| 656 |
} |
| 657 |
/* open inputs */ |
| 658 |
SET_FILE_BINARY(stdin); /* in case we're using it */ |
| 659 |
if (!f1in && !(f1in = fopen(f1name, "rb"))) { |
| 660 |
fprintf(stderr, "%s: cannot open for reading\n", f1name); |
| 661 |
return(1); |
| 662 |
} |
| 663 |
if (!strcmp(f2name, "-")) { |
| 664 |
f2in = stdin; |
| 665 |
f2name = stdin_name; |
| 666 |
} else if (!(f2in = fopen(f2name, "rb"))) { |
| 667 |
fprintf(stderr, "%s: cannot open for reading\n", f2name); |
| 668 |
return(1); |
| 669 |
} |
| 670 |
/* load headers */ |
| 671 |
if ((typ1 = identify_type(f1name, f1in, &hdr1)) < 0) |
| 672 |
return(1); |
| 673 |
if ((typ2 = identify_type(f2name, f2in, &hdr2)) < 0) |
| 674 |
return(1); |
| 675 |
if (typ1 != typ2) { |
| 676 |
if (report != REP_QUIET) |
| 677 |
printf("%s: '%s' is %s and '%s' is %s\n", |
| 678 |
progname, f1name, file_type[typ1], |
| 679 |
f2name, file_type[typ2]); |
| 680 |
return(1); |
| 681 |
} |
| 682 |
ign_header |= !has_header(typ1); /* check headers if indicated */ |
| 683 |
if (!ign_header && !headers_match(&hdr1, &hdr2)) |
| 684 |
return(1); |
| 685 |
lu_done(&hdr1); lu_done(&hdr2); |
| 686 |
if (!ign_header & (report >= REP_WARN)) { |
| 687 |
if (typ1 == TYP_UNKNOWN) |
| 688 |
printf("%s: warning - unrecognized format, comparing as binary\n", |
| 689 |
progname); |
| 690 |
if (lin1cnt != lin2cnt) |
| 691 |
printf("%s: warning - headers are different lengths\n", |
| 692 |
progname); |
| 693 |
} |
| 694 |
if (report >= REP_VERBOSE) |
| 695 |
printf("%s: input file type is %s\n", |
| 696 |
progname, file_type[typ1]); |
| 697 |
|
| 698 |
switch (typ1) { /* compare based on type */ |
| 699 |
case TYP_BINARY: |
| 700 |
case TYP_TMESH: |
| 701 |
case TYP_OCTREE: |
| 702 |
case TYP_RBFMESH: |
| 703 |
case TYP_UNKNOWN: |
| 704 |
return( !compare_binary() ); |
| 705 |
case TYP_TEXT: |
| 706 |
case TYP_ASCII: |
| 707 |
return( !compare_text() ); |
| 708 |
case TYP_RGBE: |
| 709 |
case TYP_XYZE: |
| 710 |
return( !compare_hdr() ); |
| 711 |
case TYP_FLOAT: |
| 712 |
return( !compare_float() ); |
| 713 |
case TYP_DOUBLE: |
| 714 |
return( !compare_double() ); |
| 715 |
} |
| 716 |
return(1); |
| 717 |
} |
