1 |
/* Copyright (c) 1996 Regents of the University of California */ |
2 |
|
3 |
#ifndef lint |
4 |
static char SCCSid[] = "$SunId$ LBL"; |
5 |
#endif |
6 |
|
7 |
/* |
8 |
* pfilt.c - program to post-process picture file. |
9 |
* |
10 |
* 9/26/85 |
11 |
* 6/23/93 Added additional buffers for value spreading |
12 |
*/ |
13 |
|
14 |
#include "standard.h" |
15 |
|
16 |
#include <signal.h> |
17 |
|
18 |
#include "color.h" |
19 |
|
20 |
#include "view.h" |
21 |
|
22 |
#include "resolu.h" |
23 |
|
24 |
#include "paths.h" |
25 |
|
26 |
extern float *matchlamp(); |
27 |
|
28 |
#define FEQ(a,b) ((a) >= .98*(b) && (a) <= 1.02*(b)) |
29 |
|
30 |
double CHECKRAD = 1.5; /* radius to check for filtering */ |
31 |
|
32 |
#define THRESHRAD 5.0 /* maximum sample spread in output */ |
33 |
|
34 |
COLOR exposure = WHTCOLOR; /* exposure for the frame */ |
35 |
|
36 |
double rad = 0.0; /* output pixel radius for filtering */ |
37 |
|
38 |
double thresh = 0.0; /* maximum contribution for subpixel */ |
39 |
|
40 |
int nrows = 0; /* number of rows for output */ |
41 |
int ncols = 0; /* number of columns for output */ |
42 |
|
43 |
double x_c = 1.0; /* ratio of output x size to input */ |
44 |
double y_r = 1.0; /* ratio of output y size to input */ |
45 |
|
46 |
int singlepass = 0; /* true means skip first pass */ |
47 |
|
48 |
int avghot = 0; /* true means average in bright spots */ |
49 |
|
50 |
double hotlvl = 100.0; /* level considered "hot" */ |
51 |
|
52 |
int npts = 0; /* (half) number of points for stars */ |
53 |
|
54 |
double spread = 1e-4; /* spread for star points */ |
55 |
|
56 |
char *tfname = NULL; |
57 |
|
58 |
char template[] = TEMPLATE; |
59 |
|
60 |
char *lampdat = "lamp.tab"; /* lamp data file */ |
61 |
|
62 |
int order; /* scanline ordering of input */ |
63 |
int xres, yres; /* resolution of input */ |
64 |
double inpaspect = 1.0; /* pixel aspect ratio of input */ |
65 |
int correctaspect = 0; /* aspect ratio correction? */ |
66 |
|
67 |
int wrongformat = 0; |
68 |
|
69 |
VIEW ourview = STDVIEW; |
70 |
int gotview = 0; |
71 |
int wrapfilt = 0; /* wrap filter horizontally? */ |
72 |
|
73 |
int estatus = 0; /* exit status (for non-fatal errors) */ |
74 |
|
75 |
int xrad; /* x search radius */ |
76 |
int yrad; /* y search radius */ |
77 |
int xbrad; /* x box size */ |
78 |
int ybrad; /* y box size */ |
79 |
|
80 |
int barsize; /* size of input scan bar */ |
81 |
COLOR **scanin; /* input scan bar */ |
82 |
COLOR *scanout; /* output scan line */ |
83 |
COLOR **scoutbar; /* output scan bar (if thresh > 0) */ |
84 |
float **greybar; /* grey-averaged input values */ |
85 |
int obarsize = 0; /* size of output scan bar */ |
86 |
int orad = 0; /* output window radius */ |
87 |
|
88 |
char *progname; |
89 |
|
90 |
|
91 |
main(argc, argv) |
92 |
int argc; |
93 |
char **argv; |
94 |
{ |
95 |
extern long ftell(); |
96 |
extern int quit(), headline(); |
97 |
FILE *fin; |
98 |
float *lampcolor; |
99 |
char *lamptype = NULL; |
100 |
long fpos; |
101 |
double outaspect = 0.0; |
102 |
double d; |
103 |
int i, j; |
104 |
#ifdef MSDOS |
105 |
extern int _fmode; |
106 |
_fmode = O_BINARY; |
107 |
setmode(fileno(stdin), O_BINARY); |
108 |
setmode(fileno(stdout), O_BINARY); |
109 |
#endif |
110 |
if (signal(SIGINT, quit) == SIG_IGN) |
111 |
signal(SIGINT, SIG_IGN); |
112 |
if (signal(SIGHUP, quit) == SIG_IGN) |
113 |
signal(SIGHUP, SIG_IGN); |
114 |
signal(SIGTERM, quit); |
115 |
signal(SIGPIPE, quit); |
116 |
#ifdef SIGXCPU |
117 |
signal(SIGXCPU, quit); |
118 |
signal(SIGXFSZ, quit); |
119 |
#endif |
120 |
|
121 |
progname = argv[0] = fixargv0(argv[0]); |
122 |
|
123 |
for (i = 1; i < argc; i++) |
124 |
if (argv[i][0] == '-') |
125 |
switch (argv[i][1]) { |
126 |
case 'x': |
127 |
i++; |
128 |
if (argv[i][0] == '/') { |
129 |
x_c = 1.0/atof(argv[i]+1); |
130 |
ncols = 0; |
131 |
} else |
132 |
ncols = atoi(argv[i]); |
133 |
break; |
134 |
case 'y': |
135 |
i++; |
136 |
if (argv[i][0] == '/') { |
137 |
y_r = 1.0/atof(argv[i]+1); |
138 |
nrows = 0; |
139 |
} else |
140 |
nrows = atoi(argv[i]); |
141 |
break; |
142 |
case 'c': |
143 |
correctaspect = !correctaspect; |
144 |
break; |
145 |
case 'p': |
146 |
i++; |
147 |
outaspect = atof(argv[i]); |
148 |
break; |
149 |
case 'e': |
150 |
if (argv[i+1][0] == '+' || argv[i+1][0] == '-') |
151 |
d = pow(2.0, atof(argv[i+1])); |
152 |
else |
153 |
d = atof(argv[i+1]); |
154 |
if (d < 1e-20 || d > 1e20) { |
155 |
fprintf(stderr, |
156 |
"%s: exposure out of range\n", |
157 |
argv[0]); |
158 |
quit(1); |
159 |
} |
160 |
switch (argv[i][2]) { |
161 |
case '\0': |
162 |
scalecolor(exposure, d); |
163 |
break; |
164 |
case 'r': |
165 |
colval(exposure,RED) *= d; |
166 |
break; |
167 |
case 'g': |
168 |
colval(exposure,GRN) *= d; |
169 |
break; |
170 |
case 'b': |
171 |
colval(exposure,BLU) *= d; |
172 |
break; |
173 |
default: |
174 |
goto badopt; |
175 |
} |
176 |
i++; |
177 |
break; |
178 |
case 'f': |
179 |
lampdat = argv[++i]; |
180 |
break; |
181 |
case 't': |
182 |
lamptype = argv[++i]; |
183 |
break; |
184 |
case '1': |
185 |
singlepass = 1; |
186 |
break; |
187 |
case '2': |
188 |
singlepass = 0; |
189 |
break; |
190 |
case 'n': |
191 |
npts = atoi(argv[++i]) / 2; |
192 |
break; |
193 |
case 's': |
194 |
spread = atof(argv[++i]); |
195 |
break; |
196 |
case 'a': |
197 |
avghot = !avghot; |
198 |
break; |
199 |
case 'h': |
200 |
hotlvl = atof(argv[++i]); |
201 |
break; |
202 |
case 'r': |
203 |
rad = atof(argv[++i]); |
204 |
break; |
205 |
case 'm': |
206 |
thresh = atof(argv[++i]); |
207 |
if (rad <= FTINY) |
208 |
rad = 1.0; |
209 |
break; |
210 |
case 'b': |
211 |
rad = thresh = 0.0; |
212 |
break; |
213 |
default:; |
214 |
badopt: |
215 |
fprintf(stderr, "%s: unknown option: %s\n", |
216 |
progname, argv[i]); |
217 |
quit(1); |
218 |
break; |
219 |
} |
220 |
else |
221 |
break; |
222 |
/* get lamp data (if necessary) */ |
223 |
if (lamptype != NULL) { |
224 |
if (loadlamps(lampdat) < 0) |
225 |
quit(1); |
226 |
if ((lampcolor = matchlamp(lamptype)) == NULL) { |
227 |
fprintf(stderr, "%s: unknown lamp type\n", lamptype); |
228 |
quit(1); |
229 |
} |
230 |
for (j = 0; j < 3; j++) |
231 |
if (lampcolor[j] > 1e-4) |
232 |
colval(exposure,j) /= lampcolor[j]; |
233 |
freelamps(); |
234 |
} |
235 |
/* open input file */ |
236 |
if (i == argc) { |
237 |
if (singlepass) |
238 |
fin = stdin; |
239 |
else { |
240 |
tfname = mktemp(template); |
241 |
if ((fin = fopen(tfname, "w+")) == NULL) { |
242 |
fprintf(stderr, "%s: can't create ", progname); |
243 |
fprintf(stderr, "temp file \"%s\"\n", tfname); |
244 |
quit(1); |
245 |
} |
246 |
copyfile(stdin, fin); |
247 |
if (fseek(fin, 0L, 0) == -1) { |
248 |
fprintf(stderr, "%s: seek fail\n", progname); |
249 |
quit(1); |
250 |
} |
251 |
} |
252 |
} else if (i == argc-1) { |
253 |
if ((fin = fopen(argv[i], "r")) == NULL) { |
254 |
fprintf(stderr, "%s: can't open file \"%s\"\n", |
255 |
progname, argv[i]); |
256 |
quit(1); |
257 |
} |
258 |
} else { |
259 |
fprintf(stderr, "%s: bad # file arguments\n", progname); |
260 |
quit(1); |
261 |
} |
262 |
/* get header */ |
263 |
getheader(fin, headline, NULL); |
264 |
if (wrongformat) { |
265 |
fprintf(stderr, "%s: input must be a Radiance picture\n", |
266 |
progname); |
267 |
quit(1); |
268 |
} |
269 |
/* add new header info. */ |
270 |
printargs(i, argv, stdout); |
271 |
/* get picture size */ |
272 |
if ((order = fgetresolu(&xres, &yres, fin)) < 0) { |
273 |
fprintf(stderr, "%s: bad picture size\n", progname); |
274 |
quit(1); |
275 |
} |
276 |
if (!(order & YMAJOR)) |
277 |
inpaspect = 1.0/inpaspect; |
278 |
/* wrap around for cylindrical view? */ |
279 |
wrapfilt = gotview && ourview.type == VT_CYL && |
280 |
ourview.horiz >= 360.-FTINY && order & YMAJOR; |
281 |
/* compute output resolution */ |
282 |
if (ncols <= 0) |
283 |
ncols = x_c*xres + .5; |
284 |
if (nrows <= 0) |
285 |
nrows = y_r*yres + .5; |
286 |
if (outaspect > .01) { |
287 |
d = inpaspect * yres/xres / outaspect; |
288 |
if (d * ncols > nrows) |
289 |
ncols = nrows / d; |
290 |
else |
291 |
nrows = ncols * d; |
292 |
} |
293 |
x_c = (double)ncols/xres; |
294 |
y_r = (double)nrows/yres; |
295 |
|
296 |
if (singlepass) { /* skip exposure, etc. */ |
297 |
pass1default(); |
298 |
pass2(fin); |
299 |
quit(0); |
300 |
} |
301 |
|
302 |
fpos = ftell(fin); /* save input file position */ |
303 |
|
304 |
pass1(fin); |
305 |
|
306 |
if (fseek(fin, fpos, 0) == -1) { |
307 |
fprintf(stderr, "%s: seek fail\n", progname); |
308 |
quit(1); |
309 |
} |
310 |
pass2(fin); |
311 |
|
312 |
quit(estatus); |
313 |
} |
314 |
|
315 |
|
316 |
double |
317 |
rgb_bright(clr) |
318 |
COLOR clr; |
319 |
{ |
320 |
return(bright(clr)); |
321 |
} |
322 |
|
323 |
|
324 |
double |
325 |
xyz_bright(clr) |
326 |
COLOR clr; |
327 |
{ |
328 |
return(clr[CIEY]); |
329 |
} |
330 |
|
331 |
|
332 |
double (*ourbright)() = rgb_bright; |
333 |
|
334 |
|
335 |
int |
336 |
headline(s) /* process line from header */ |
337 |
char *s; |
338 |
{ |
339 |
char fmt[32]; |
340 |
|
341 |
fputs(s, stdout); /* copy to output */ |
342 |
if (isaspect(s)) /* get aspect ratio */ |
343 |
inpaspect *= aspectval(s); |
344 |
else if (isexpos(s)) /* get exposure */ |
345 |
hotlvl *= exposval(s); |
346 |
else if (formatval(fmt, s)) { /* get format */ |
347 |
wrongformat = 0; |
348 |
if (!strcmp(COLRFMT, fmt)) |
349 |
ourbright = rgb_bright; |
350 |
else if (!strcmp(CIEFMT, fmt)) |
351 |
ourbright = xyz_bright; |
352 |
else |
353 |
wrongformat = !globmatch(PICFMT, fmt); |
354 |
} else if (isview(s) && sscanview(&ourview, s) > 0) |
355 |
gotview++; |
356 |
return(0); |
357 |
} |
358 |
|
359 |
|
360 |
copyfile(in, out) /* copy a file */ |
361 |
register FILE *in, *out; |
362 |
{ |
363 |
register int c; |
364 |
|
365 |
while ((c = getc(in)) != EOF) |
366 |
putc(c, out); |
367 |
|
368 |
if (ferror(out)) { |
369 |
fprintf(stderr, "%s: write error in copyfile\n", progname); |
370 |
quit(1); |
371 |
} |
372 |
} |
373 |
|
374 |
|
375 |
pass1(in) /* first pass of picture file */ |
376 |
FILE *in; |
377 |
{ |
378 |
int i; |
379 |
COLOR *scan; |
380 |
|
381 |
pass1init(); |
382 |
|
383 |
scan = (COLOR *)malloc(xres*sizeof(COLOR)); |
384 |
if (scan == NULL) { |
385 |
fprintf(stderr, "%s: out of memory\n", progname); |
386 |
quit(1); |
387 |
} |
388 |
for (i = 0; i < yres; i++) { |
389 |
if (freadscan(scan, xres, in) < 0) { |
390 |
nrows = (long)nrows * i / yres; /* adjust frame */ |
391 |
if (nrows <= 0) { |
392 |
fprintf(stderr, "%s: empty frame\n", progname); |
393 |
quit(1); |
394 |
} |
395 |
fprintf(stderr, "%s: warning - partial frame (%d%%)\n", |
396 |
progname, (int)(100L*i/yres)); |
397 |
yres = i; |
398 |
y_r = (double)nrows/yres; |
399 |
estatus++; |
400 |
break; |
401 |
} |
402 |
pass1scan(scan, i); |
403 |
} |
404 |
free((char *)scan); |
405 |
} |
406 |
|
407 |
|
408 |
pass2(in) /* last pass on file, write to stdout */ |
409 |
FILE *in; |
410 |
{ |
411 |
int yread; |
412 |
int ycent, xcent; |
413 |
int r, c; |
414 |
|
415 |
pass2init(); |
416 |
scan2init(); |
417 |
yread = 0; |
418 |
for (r = 0; r < nrows; r++) { |
419 |
ycent = (r+.5)*yres/nrows; |
420 |
while (yread <= ycent+yrad) { |
421 |
if (yread < yres) { |
422 |
if (freadscan(scanin[yread%barsize], |
423 |
xres, in) < 0) { |
424 |
fprintf(stderr, |
425 |
"%s: truncated input (y=%d)\n", |
426 |
progname, yres-1-yread); |
427 |
quit(1); |
428 |
} |
429 |
pass2scan(scanin[yread%barsize], yread); |
430 |
} |
431 |
yread++; |
432 |
} |
433 |
if (obarsize > 0) |
434 |
scan2sync(r); |
435 |
for (c = 0; c < ncols; c++) { |
436 |
xcent = (c+.5)*xres/ncols; |
437 |
if (thresh > FTINY) |
438 |
dothresh(xcent, ycent, c, r); |
439 |
else if (rad > FTINY) |
440 |
dogauss(scanout[c], xcent, ycent, c, r); |
441 |
else |
442 |
dobox(scanout[c], xcent, ycent, c, r); |
443 |
} |
444 |
if (scanout != NULL && fwritescan(scanout, ncols, stdout) < 0) { |
445 |
fprintf(stderr, "%s: write error in pass2\n", progname); |
446 |
quit(1); |
447 |
} |
448 |
} |
449 |
/* skip leftover input */ |
450 |
while (yread < yres) { |
451 |
if (freadscan(scanin[0], xres, in) < 0) |
452 |
break; |
453 |
yread++; |
454 |
} |
455 |
scan2flush(); /* flush output */ |
456 |
} |
457 |
|
458 |
|
459 |
scan2init() /* prepare scanline arrays */ |
460 |
{ |
461 |
COLOR ctmp; |
462 |
double d; |
463 |
register int i; |
464 |
|
465 |
xbrad = xres/ncols/2 + 1; |
466 |
ybrad = yres/nrows/2 + 1; |
467 |
if (rad > FTINY) { |
468 |
if (nrows >= yres && ncols >= xres) |
469 |
rad *= (y_r + x_c)/2.0; |
470 |
|
471 |
if (thresh > FTINY) { |
472 |
orad = CHECKRAD*THRESHRAD*rad + 1; |
473 |
xrad = orad/x_c + xbrad; |
474 |
yrad = orad/y_r + ybrad; |
475 |
obarsize = 2*orad + 1; |
476 |
} else { |
477 |
xrad = CHECKRAD*rad/x_c + 1; |
478 |
yrad = CHECKRAD*rad/y_r + 1; |
479 |
} |
480 |
initmask(); /* initialize filter table */ |
481 |
} else { |
482 |
xrad = xbrad; |
483 |
yrad = ybrad; |
484 |
} |
485 |
barsize = 2*yrad + 1; |
486 |
scanin = (COLOR **)malloc(barsize*sizeof(COLOR *)); |
487 |
if (scanin == NULL) |
488 |
goto memerr; |
489 |
for (i = 0; i < barsize; i++) { |
490 |
scanin[i] = (COLOR *)malloc(xres*sizeof(COLOR)); |
491 |
if (scanin[i] == NULL) |
492 |
goto memerr; |
493 |
} |
494 |
if (obarsize > 0) { |
495 |
scoutbar = (COLOR **)malloc(obarsize*sizeof(COLOR *)); |
496 |
greybar = (float **)malloc(obarsize*sizeof(float *)); |
497 |
if (scoutbar == NULL | greybar == NULL) |
498 |
goto memerr; |
499 |
for (i = 0; i < obarsize; i++) { |
500 |
scoutbar[i] = (COLOR *)malloc(ncols*sizeof(COLOR)); |
501 |
greybar[i] = (float *)malloc(ncols*sizeof(float)); |
502 |
if (scoutbar[i] == NULL | greybar[i] == NULL) |
503 |
goto memerr; |
504 |
} |
505 |
} else { |
506 |
scanout = (COLOR *)malloc(ncols*sizeof(COLOR)); |
507 |
if (scanout == NULL) |
508 |
goto memerr; |
509 |
} |
510 |
/* record pixel aspect ratio */ |
511 |
if (!correctaspect) { |
512 |
d = order & YMAJOR ? x_c/y_r : y_r/x_c ; |
513 |
if (!FEQ(d,1.0)) |
514 |
fputaspect(d, stdout); |
515 |
} |
516 |
/* record exposure */ |
517 |
d = (*ourbright)(exposure); |
518 |
if (!FEQ(d,1.0)) |
519 |
fputexpos(d, stdout); |
520 |
/* record color correction */ |
521 |
copycolor(ctmp, exposure); |
522 |
scalecolor(ctmp, 1.0/d); |
523 |
if (!FEQ(colval(ctmp,RED),colval(ctmp,GRN)) || |
524 |
!FEQ(colval(ctmp,GRN),colval(ctmp,BLU))) |
525 |
fputcolcor(ctmp, stdout); |
526 |
printf("\n"); |
527 |
/* write out resolution */ |
528 |
fputresolu(order, ncols, nrows, stdout); |
529 |
return; |
530 |
memerr: |
531 |
fprintf(stderr, "%s: out of memory\n", progname); |
532 |
quit(1); |
533 |
} |
534 |
|
535 |
|
536 |
scan2sync(r) /* synchronize grey averages and output scan */ |
537 |
int r; |
538 |
{ |
539 |
static int nextrow = 0; |
540 |
COLOR ctmp; |
541 |
int ybot; |
542 |
register int c; |
543 |
/* average input scanlines */ |
544 |
while (nextrow <= r+orad && nextrow < nrows) { |
545 |
ybot = (nextrow+.5)*yres/nrows; |
546 |
for (c = 0; c < ncols; c++) { |
547 |
dobox(ctmp, (int)((c+.5)*xres/ncols),ybot, c,nextrow); |
548 |
greybar[nextrow%obarsize][c] = (*ourbright)(ctmp); |
549 |
} |
550 |
/* and zero output scanline */ |
551 |
bzero((char *)scoutbar[nextrow%obarsize], ncols*sizeof(COLOR)); |
552 |
nextrow++; |
553 |
} |
554 |
/* point to top scanline for output */ |
555 |
if (r-orad >= 0) |
556 |
scanout = scoutbar[(r-orad)%obarsize]; |
557 |
else |
558 |
scanout = NULL; |
559 |
} |
560 |
|
561 |
|
562 |
scan2flush() /* flush output buffer */ |
563 |
{ |
564 |
register int r; |
565 |
|
566 |
for (r = nrows-orad; r < nrows; r++) |
567 |
if (fwritescan(scoutbar[r%obarsize], ncols, stdout) < 0) |
568 |
break; |
569 |
if (fflush(stdout) < 0) { |
570 |
fprintf(stderr, "%s: write error at end of pass2\n", progname); |
571 |
quit(1); |
572 |
} |
573 |
} |
574 |
|
575 |
|
576 |
quit(code) /* remove temporary file and exit */ |
577 |
int code; |
578 |
{ |
579 |
if (tfname != NULL) |
580 |
unlink(tfname); |
581 |
exit(code); |
582 |
} |