1 |
#ifndef lint |
2 |
static const char RCSid[] = "$Id$"; |
3 |
#endif |
4 |
/* |
5 |
* pfilt.c - program to post-process picture file. |
6 |
* |
7 |
* 9/26/85 |
8 |
* 6/23/93 Added additional buffers for value spreading |
9 |
*/ |
10 |
|
11 |
#include "standard.h" |
12 |
|
13 |
#include <signal.h> |
14 |
|
15 |
#include "color.h" |
16 |
|
17 |
#include "view.h" |
18 |
|
19 |
#include "paths.h" |
20 |
|
21 |
extern float *matchlamp(); |
22 |
|
23 |
#define FEQ(a,b) ((a) >= .98*(b) && (a) <= 1.02*(b)) |
24 |
|
25 |
double CHECKRAD = 1.5; /* radius to check for filtering */ |
26 |
|
27 |
#define THRESHRAD 5.0 /* maximum sample spread in output */ |
28 |
|
29 |
COLOR exposure = WHTCOLOR; /* exposure for the frame */ |
30 |
|
31 |
double rad = 0.0; /* output pixel radius for filtering */ |
32 |
|
33 |
double thresh = 0.0; /* maximum contribution for subpixel */ |
34 |
|
35 |
int nrows = 0; /* number of rows for output */ |
36 |
int ncols = 0; /* number of columns for output */ |
37 |
|
38 |
double x_c = 1.0; /* ratio of output x size to input */ |
39 |
double y_r = 1.0; /* ratio of output y size to input */ |
40 |
|
41 |
int singlepass = 0; /* true means skip first pass */ |
42 |
|
43 |
int avghot = 0; /* true means average in bright spots */ |
44 |
|
45 |
double hotlvl = 100.0; /* level considered "hot" */ |
46 |
|
47 |
int npts = 0; /* (half) number of points for stars */ |
48 |
|
49 |
double spread = 1e-4; /* spread for star points */ |
50 |
|
51 |
char *tfname = NULL; |
52 |
|
53 |
char template[] = TEMPLATE; |
54 |
|
55 |
char *lampdat = "lamp.tab"; /* lamp data file */ |
56 |
|
57 |
int order; /* scanline ordering of input */ |
58 |
int xres, yres; /* resolution of input */ |
59 |
double inpaspect = 1.0; /* pixel aspect ratio of input */ |
60 |
int correctaspect = 0; /* aspect ratio correction? */ |
61 |
|
62 |
int wrongformat = 0; |
63 |
|
64 |
VIEW ourview = STDVIEW; |
65 |
int gotview = 0; |
66 |
int wrapfilt = 0; /* wrap filter horizontally? */ |
67 |
|
68 |
int estatus = 0; /* exit status (for non-fatal errors) */ |
69 |
|
70 |
int xrad; /* x search radius */ |
71 |
int yrad; /* y search radius */ |
72 |
int xbrad; /* x box size */ |
73 |
int ybrad; /* y box size */ |
74 |
|
75 |
int barsize; /* size of input scan bar */ |
76 |
COLOR **scanin; /* input scan bar */ |
77 |
COLOR *scanout; /* output scan line */ |
78 |
COLOR **scoutbar; /* output scan bar (if thresh > 0) */ |
79 |
float **greybar; /* grey-averaged input values */ |
80 |
int obarsize = 0; /* size of output scan bar */ |
81 |
int orad = 0; /* output window radius */ |
82 |
|
83 |
char *progname; |
84 |
|
85 |
|
86 |
main(argc, argv) |
87 |
int argc; |
88 |
char **argv; |
89 |
{ |
90 |
extern int headline(); |
91 |
FILE *fin; |
92 |
float *lampcolor; |
93 |
char *lamptype = NULL; |
94 |
long fpos; |
95 |
double outaspect = 0.0; |
96 |
double d; |
97 |
int i, j; |
98 |
#ifdef MSDOS |
99 |
extern int _fmode; |
100 |
_fmode = O_BINARY; |
101 |
setmode(fileno(stdin), O_BINARY); |
102 |
setmode(fileno(stdout), O_BINARY); |
103 |
#endif |
104 |
if (signal(SIGINT, quit) == SIG_IGN) |
105 |
signal(SIGINT, SIG_IGN); |
106 |
if (signal(SIGHUP, quit) == SIG_IGN) |
107 |
signal(SIGHUP, SIG_IGN); |
108 |
signal(SIGTERM, quit); |
109 |
signal(SIGPIPE, quit); |
110 |
#ifdef SIGXCPU |
111 |
signal(SIGXCPU, quit); |
112 |
signal(SIGXFSZ, quit); |
113 |
#endif |
114 |
|
115 |
progname = argv[0] = fixargv0(argv[0]); |
116 |
|
117 |
for (i = 1; i < argc; i++) |
118 |
if (argv[i][0] == '-') |
119 |
switch (argv[i][1]) { |
120 |
case 'x': |
121 |
i++; |
122 |
if (argv[i][0] == '/') { |
123 |
x_c = 1.0/atof(argv[i]+1); |
124 |
ncols = 0; |
125 |
} else |
126 |
ncols = atoi(argv[i]); |
127 |
break; |
128 |
case 'y': |
129 |
i++; |
130 |
if (argv[i][0] == '/') { |
131 |
y_r = 1.0/atof(argv[i]+1); |
132 |
nrows = 0; |
133 |
} else |
134 |
nrows = atoi(argv[i]); |
135 |
break; |
136 |
case 'c': |
137 |
correctaspect = !correctaspect; |
138 |
break; |
139 |
case 'p': |
140 |
i++; |
141 |
outaspect = atof(argv[i]); |
142 |
break; |
143 |
case 'e': |
144 |
if (argv[i+1][0] == '+' || argv[i+1][0] == '-') |
145 |
d = pow(2.0, atof(argv[i+1])); |
146 |
else |
147 |
d = atof(argv[i+1]); |
148 |
if (d < 1e-20 || d > 1e20) { |
149 |
fprintf(stderr, |
150 |
"%s: exposure out of range\n", |
151 |
argv[0]); |
152 |
quit(1); |
153 |
} |
154 |
switch (argv[i][2]) { |
155 |
case '\0': |
156 |
scalecolor(exposure, d); |
157 |
break; |
158 |
case 'r': |
159 |
colval(exposure,RED) *= d; |
160 |
break; |
161 |
case 'g': |
162 |
colval(exposure,GRN) *= d; |
163 |
break; |
164 |
case 'b': |
165 |
colval(exposure,BLU) *= d; |
166 |
break; |
167 |
default: |
168 |
goto badopt; |
169 |
} |
170 |
i++; |
171 |
break; |
172 |
case 'f': |
173 |
lampdat = argv[++i]; |
174 |
break; |
175 |
case 't': |
176 |
lamptype = argv[++i]; |
177 |
break; |
178 |
case '1': |
179 |
singlepass = 1; |
180 |
break; |
181 |
case '2': |
182 |
singlepass = 0; |
183 |
break; |
184 |
case 'n': |
185 |
npts = atoi(argv[++i]) / 2; |
186 |
break; |
187 |
case 's': |
188 |
spread = atof(argv[++i]); |
189 |
break; |
190 |
case 'a': |
191 |
avghot = !avghot; |
192 |
break; |
193 |
case 'h': |
194 |
hotlvl = atof(argv[++i]); |
195 |
break; |
196 |
case 'r': |
197 |
rad = atof(argv[++i]); |
198 |
break; |
199 |
case 'm': |
200 |
thresh = atof(argv[++i]); |
201 |
if (rad <= FTINY) |
202 |
rad = 0.6; |
203 |
break; |
204 |
case 'b': |
205 |
rad = thresh = 0.0; |
206 |
break; |
207 |
default:; |
208 |
badopt: |
209 |
fprintf(stderr, "%s: unknown option: %s\n", |
210 |
progname, argv[i]); |
211 |
quit(1); |
212 |
break; |
213 |
} |
214 |
else |
215 |
break; |
216 |
/* get lamp data (if necessary) */ |
217 |
if (lamptype != NULL) { |
218 |
if (loadlamps(lampdat) < 0) |
219 |
quit(1); |
220 |
if ((lampcolor = matchlamp(lamptype)) == NULL) { |
221 |
fprintf(stderr, "%s: unknown lamp type\n", lamptype); |
222 |
quit(1); |
223 |
} |
224 |
for (j = 0; j < 3; j++) |
225 |
if (lampcolor[j] > 1e-4) |
226 |
colval(exposure,j) /= lampcolor[j]; |
227 |
freelamps(); |
228 |
} |
229 |
/* open input file */ |
230 |
if (i == argc) { |
231 |
if (singlepass) |
232 |
fin = stdin; |
233 |
else { |
234 |
tfname = mktemp(template); |
235 |
if ((fin = fopen(tfname, "w+")) == NULL) { |
236 |
fprintf(stderr, "%s: can't create ", progname); |
237 |
fprintf(stderr, "temp file \"%s\"\n", tfname); |
238 |
quit(1); |
239 |
} |
240 |
copyfile(stdin, fin); |
241 |
if (fseek(fin, 0L, 0) == -1) { |
242 |
fprintf(stderr, "%s: seek fail\n", progname); |
243 |
quit(1); |
244 |
} |
245 |
} |
246 |
} else if (i == argc-1) { |
247 |
if ((fin = fopen(argv[i], "r")) == NULL) { |
248 |
fprintf(stderr, "%s: can't open file \"%s\"\n", |
249 |
progname, argv[i]); |
250 |
quit(1); |
251 |
} |
252 |
} else { |
253 |
fprintf(stderr, "%s: bad # file arguments\n", progname); |
254 |
quit(1); |
255 |
} |
256 |
/* get header */ |
257 |
getheader(fin, headline, NULL); |
258 |
if (wrongformat) { |
259 |
fprintf(stderr, "%s: input must be a Radiance picture\n", |
260 |
progname); |
261 |
quit(1); |
262 |
} |
263 |
/* add new header info. */ |
264 |
printargs(i, argv, stdout); |
265 |
/* get picture size */ |
266 |
if ((order = fgetresolu(&xres, &yres, fin)) < 0) { |
267 |
fprintf(stderr, "%s: bad picture size\n", progname); |
268 |
quit(1); |
269 |
} |
270 |
if (!(order & YMAJOR)) |
271 |
inpaspect = 1.0/inpaspect; |
272 |
/* wrap around for cylindrical view? */ |
273 |
wrapfilt = gotview && ourview.type == VT_CYL && |
274 |
ourview.horiz >= 360.-FTINY && order & YMAJOR; |
275 |
/* compute output resolution */ |
276 |
if (ncols <= 0) |
277 |
ncols = x_c*xres + .5; |
278 |
if (nrows <= 0) |
279 |
nrows = y_r*yres + .5; |
280 |
if (outaspect > .01) { |
281 |
d = inpaspect * yres/xres / outaspect; |
282 |
if (d * ncols > nrows) |
283 |
ncols = nrows / d; |
284 |
else |
285 |
nrows = ncols * d; |
286 |
} |
287 |
x_c = (double)ncols/xres; |
288 |
y_r = (double)nrows/yres; |
289 |
|
290 |
if (singlepass) { /* skip exposure, etc. */ |
291 |
pass1default(); |
292 |
pass2(fin); |
293 |
quit(0); |
294 |
} |
295 |
|
296 |
fpos = ftell(fin); /* save input file position */ |
297 |
|
298 |
pass1(fin); |
299 |
|
300 |
if (fseek(fin, fpos, 0) == -1) { |
301 |
fprintf(stderr, "%s: seek fail\n", progname); |
302 |
quit(1); |
303 |
} |
304 |
pass2(fin); |
305 |
|
306 |
quit(estatus); |
307 |
} |
308 |
|
309 |
|
310 |
double |
311 |
rgb_bright(clr) |
312 |
COLOR clr; |
313 |
{ |
314 |
return(bright(clr)); |
315 |
} |
316 |
|
317 |
|
318 |
double |
319 |
xyz_bright(clr) |
320 |
COLOR clr; |
321 |
{ |
322 |
return(clr[CIEY]); |
323 |
} |
324 |
|
325 |
|
326 |
double (*ourbright)() = rgb_bright; |
327 |
|
328 |
|
329 |
int |
330 |
headline(s) /* process line from header */ |
331 |
char *s; |
332 |
{ |
333 |
char fmt[32]; |
334 |
|
335 |
fputs(s, stdout); /* copy to output */ |
336 |
if (isaspect(s)) /* get aspect ratio */ |
337 |
inpaspect *= aspectval(s); |
338 |
else if (isexpos(s)) /* get exposure */ |
339 |
hotlvl *= exposval(s); |
340 |
else if (formatval(fmt, s)) { /* get format */ |
341 |
wrongformat = 0; |
342 |
if (!strcmp(COLRFMT, fmt)) |
343 |
ourbright = rgb_bright; |
344 |
else if (!strcmp(CIEFMT, fmt)) |
345 |
ourbright = xyz_bright; |
346 |
else |
347 |
wrongformat = !globmatch(PICFMT, fmt); |
348 |
} else if (isview(s) && sscanview(&ourview, s) > 0) |
349 |
gotview++; |
350 |
return(0); |
351 |
} |
352 |
|
353 |
|
354 |
copyfile(in, out) /* copy a file */ |
355 |
register FILE *in, *out; |
356 |
{ |
357 |
register int c; |
358 |
|
359 |
while ((c = getc(in)) != EOF) |
360 |
putc(c, out); |
361 |
|
362 |
if (ferror(out)) { |
363 |
fprintf(stderr, "%s: write error in copyfile\n", progname); |
364 |
quit(1); |
365 |
} |
366 |
} |
367 |
|
368 |
|
369 |
pass1(in) /* first pass of picture file */ |
370 |
FILE *in; |
371 |
{ |
372 |
int i; |
373 |
COLOR *scan; |
374 |
|
375 |
pass1init(); |
376 |
|
377 |
scan = (COLOR *)malloc(xres*sizeof(COLOR)); |
378 |
if (scan == NULL) { |
379 |
fprintf(stderr, "%s: out of memory\n", progname); |
380 |
quit(1); |
381 |
} |
382 |
for (i = 0; i < yres; i++) { |
383 |
if (freadscan(scan, xres, in) < 0) { |
384 |
nrows = (long)nrows * i / yres; /* adjust frame */ |
385 |
if (nrows <= 0) { |
386 |
fprintf(stderr, "%s: empty frame\n", progname); |
387 |
quit(1); |
388 |
} |
389 |
fprintf(stderr, "%s: warning - partial frame (%d%%)\n", |
390 |
progname, (int)(100L*i/yres)); |
391 |
yres = i; |
392 |
y_r = (double)nrows/yres; |
393 |
estatus++; |
394 |
break; |
395 |
} |
396 |
pass1scan(scan, i); |
397 |
} |
398 |
free((void *)scan); |
399 |
} |
400 |
|
401 |
|
402 |
pass2(in) /* last pass on file, write to stdout */ |
403 |
FILE *in; |
404 |
{ |
405 |
int yread; |
406 |
int ycent, xcent; |
407 |
int r, c; |
408 |
|
409 |
pass2init(); |
410 |
scan2init(); |
411 |
yread = 0; |
412 |
for (r = 0; r < nrows; r++) { |
413 |
ycent = (r+.5)*yres/nrows; |
414 |
while (yread <= ycent+yrad) { |
415 |
if (yread < yres) { |
416 |
if (freadscan(scanin[yread%barsize], |
417 |
xres, in) < 0) { |
418 |
fprintf(stderr, |
419 |
"%s: truncated input (y=%d)\n", |
420 |
progname, yres-1-yread); |
421 |
quit(1); |
422 |
} |
423 |
pass2scan(scanin[yread%barsize], yread); |
424 |
} |
425 |
yread++; |
426 |
} |
427 |
if (obarsize > 0) |
428 |
scan2sync(r); |
429 |
for (c = 0; c < ncols; c++) { |
430 |
xcent = (c+.5)*xres/ncols; |
431 |
if (thresh > FTINY) |
432 |
dothresh(xcent, ycent, c, r); |
433 |
else if (rad > FTINY) |
434 |
dogauss(scanout[c], xcent, ycent, c, r); |
435 |
else |
436 |
dobox(scanout[c], xcent, ycent, c, r); |
437 |
} |
438 |
if (scanout != NULL && fwritescan(scanout, ncols, stdout) < 0) { |
439 |
fprintf(stderr, "%s: write error in pass2\n", progname); |
440 |
quit(1); |
441 |
} |
442 |
} |
443 |
/* skip leftover input */ |
444 |
while (yread < yres) { |
445 |
if (freadscan(scanin[0], xres, in) < 0) |
446 |
break; |
447 |
yread++; |
448 |
} |
449 |
scan2flush(); /* flush output */ |
450 |
} |
451 |
|
452 |
|
453 |
scan2init() /* prepare scanline arrays */ |
454 |
{ |
455 |
COLOR ctmp; |
456 |
double d; |
457 |
register int i; |
458 |
|
459 |
xbrad = xres/ncols/2 + 1; |
460 |
ybrad = yres/nrows/2 + 1; |
461 |
if (rad > FTINY) { |
462 |
if (nrows >= yres && ncols >= xres) |
463 |
rad *= (y_r + x_c)/2.0; |
464 |
|
465 |
if (thresh > FTINY) { |
466 |
orad = CHECKRAD*THRESHRAD*rad + 1; |
467 |
xrad = orad/x_c + xbrad; |
468 |
yrad = orad/y_r + ybrad; |
469 |
obarsize = 2*orad + 1; |
470 |
} else { |
471 |
xrad = CHECKRAD*rad/x_c + 1; |
472 |
yrad = CHECKRAD*rad/y_r + 1; |
473 |
} |
474 |
initmask(); /* initialize filter table */ |
475 |
} else { |
476 |
xrad = xbrad; |
477 |
yrad = ybrad; |
478 |
} |
479 |
barsize = 2*yrad + 1; |
480 |
scanin = (COLOR **)malloc(barsize*sizeof(COLOR *)); |
481 |
if (scanin == NULL) |
482 |
goto memerr; |
483 |
for (i = 0; i < barsize; i++) { |
484 |
scanin[i] = (COLOR *)malloc(xres*sizeof(COLOR)); |
485 |
if (scanin[i] == NULL) |
486 |
goto memerr; |
487 |
} |
488 |
if (obarsize > 0) { |
489 |
scoutbar = (COLOR **)malloc(obarsize*sizeof(COLOR *)); |
490 |
greybar = (float **)malloc(obarsize*sizeof(float *)); |
491 |
if (scoutbar == NULL | greybar == NULL) |
492 |
goto memerr; |
493 |
for (i = 0; i < obarsize; i++) { |
494 |
scoutbar[i] = (COLOR *)malloc(ncols*sizeof(COLOR)); |
495 |
greybar[i] = (float *)malloc(ncols*sizeof(float)); |
496 |
if (scoutbar[i] == NULL | greybar[i] == NULL) |
497 |
goto memerr; |
498 |
} |
499 |
} else { |
500 |
scanout = (COLOR *)malloc(ncols*sizeof(COLOR)); |
501 |
if (scanout == NULL) |
502 |
goto memerr; |
503 |
} |
504 |
/* record pixel aspect ratio */ |
505 |
if (!correctaspect) { |
506 |
d = order & YMAJOR ? x_c/y_r : y_r/x_c ; |
507 |
if (!FEQ(d,1.0)) |
508 |
fputaspect(d, stdout); |
509 |
} |
510 |
/* record exposure */ |
511 |
d = (*ourbright)(exposure); |
512 |
if (!FEQ(d,1.0)) |
513 |
fputexpos(d, stdout); |
514 |
/* record color correction */ |
515 |
copycolor(ctmp, exposure); |
516 |
scalecolor(ctmp, 1.0/d); |
517 |
if (!FEQ(colval(ctmp,RED),colval(ctmp,GRN)) || |
518 |
!FEQ(colval(ctmp,GRN),colval(ctmp,BLU))) |
519 |
fputcolcor(ctmp, stdout); |
520 |
printf("\n"); |
521 |
/* write out resolution */ |
522 |
fputresolu(order, ncols, nrows, stdout); |
523 |
return; |
524 |
memerr: |
525 |
fprintf(stderr, "%s: out of memory\n", progname); |
526 |
quit(1); |
527 |
} |
528 |
|
529 |
|
530 |
scan2sync(r) /* synchronize grey averages and output scan */ |
531 |
int r; |
532 |
{ |
533 |
static int nextrow = 0; |
534 |
COLOR ctmp; |
535 |
int ybot; |
536 |
register int c; |
537 |
/* average input scanlines */ |
538 |
while (nextrow <= r+orad && nextrow < nrows) { |
539 |
ybot = (nextrow+.5)*yres/nrows; |
540 |
for (c = 0; c < ncols; c++) { |
541 |
dobox(ctmp, (int)((c+.5)*xres/ncols),ybot, c,nextrow); |
542 |
greybar[nextrow%obarsize][c] = (*ourbright)(ctmp); |
543 |
} |
544 |
/* and zero output scanline */ |
545 |
bzero((char *)scoutbar[nextrow%obarsize], ncols*sizeof(COLOR)); |
546 |
nextrow++; |
547 |
} |
548 |
/* point to top scanline for output */ |
549 |
if (r-orad >= 0) |
550 |
scanout = scoutbar[(r-orad)%obarsize]; |
551 |
else |
552 |
scanout = NULL; |
553 |
} |
554 |
|
555 |
|
556 |
scan2flush() /* flush output buffer */ |
557 |
{ |
558 |
register int r; |
559 |
|
560 |
for (r = nrows-orad; r < nrows; r++) |
561 |
if (fwritescan(scoutbar[r%obarsize], ncols, stdout) < 0) |
562 |
break; |
563 |
if (fflush(stdout) < 0) { |
564 |
fprintf(stderr, "%s: write error at end of pass2\n", progname); |
565 |
quit(1); |
566 |
} |
567 |
} |
568 |
|
569 |
|
570 |
void |
571 |
quit(code) /* remove temporary file and exit */ |
572 |
int code; |
573 |
{ |
574 |
if (tfname != NULL) |
575 |
unlink(tfname); |
576 |
exit(code); |
577 |
} |