1 |
#ifndef lint |
2 |
static const char RCSid[] = "$Id: pfilt.c,v 2.23 2003/06/05 19:29:34 schorsch Exp $"; |
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 <signal.h> |
12 |
|
13 |
#include "standard.h" |
14 |
#include "platform.h" |
15 |
#include "color.h" |
16 |
#include "view.h" |
17 |
#include "paths.h" |
18 |
|
19 |
extern float *matchlamp(); |
20 |
|
21 |
#define FEQ(a,b) ((a) >= .98*(b) && (a) <= 1.02*(b)) |
22 |
|
23 |
double CHECKRAD = 2.0; /* radius to check for filtering */ |
24 |
|
25 |
#define THRESHRAD 5.0 /* maximum sample spread in output */ |
26 |
|
27 |
COLOR exposure = WHTCOLOR; /* exposure for the frame */ |
28 |
|
29 |
double rad = 0.0; /* output pixel radius for filtering */ |
30 |
|
31 |
double thresh = 0.0; /* maximum contribution for subpixel */ |
32 |
|
33 |
int nrows = 0; /* number of rows for output */ |
34 |
int ncols = 0; /* number of columns for output */ |
35 |
|
36 |
double x_c = 1.0; /* ratio of output x size to input */ |
37 |
double y_r = 1.0; /* ratio of output y size to input */ |
38 |
|
39 |
int singlepass = 0; /* true means skip first pass */ |
40 |
|
41 |
int avghot = 0; /* true means average in bright spots */ |
42 |
|
43 |
double hotlvl = 100.0; /* level considered "hot" */ |
44 |
|
45 |
int npts = 0; /* (half) number of points for stars */ |
46 |
|
47 |
double spread = 1e-4; /* spread for star points */ |
48 |
|
49 |
char *tfname = NULL; |
50 |
|
51 |
char template[] = TEMPLATE; |
52 |
|
53 |
char *lampdat = "lamp.tab"; /* lamp data file */ |
54 |
|
55 |
int order; /* scanline ordering of input */ |
56 |
int xres, yres; /* resolution of input */ |
57 |
double inpaspect = 1.0; /* pixel aspect ratio of input */ |
58 |
int correctaspect = 0; /* aspect ratio correction? */ |
59 |
|
60 |
int wrongformat = 0; |
61 |
|
62 |
VIEW ourview = STDVIEW; |
63 |
int gotview = 0; |
64 |
int wrapfilt = 0; /* wrap filter horizontally? */ |
65 |
|
66 |
int estatus = 0; /* exit status (for non-fatal errors) */ |
67 |
|
68 |
int xrad; /* x search radius */ |
69 |
int yrad; /* y search radius */ |
70 |
int xbrad; /* x box size */ |
71 |
int ybrad; /* y box size */ |
72 |
|
73 |
int barsize; /* size of input scan bar */ |
74 |
COLOR **scanin; /* input scan bar */ |
75 |
COLOR *scanout; /* output scan line */ |
76 |
COLOR **scoutbar; /* output scan bar (if thresh > 0) */ |
77 |
float **greybar; /* grey-averaged input values */ |
78 |
int obarsize = 0; /* size of output scan bar */ |
79 |
int orad = 0; /* output window radius */ |
80 |
|
81 |
char *progname; |
82 |
|
83 |
|
84 |
main(argc, argv) |
85 |
int argc; |
86 |
char **argv; |
87 |
{ |
88 |
extern int headline(); |
89 |
FILE *fin; |
90 |
float *lampcolor; |
91 |
char *lamptype = NULL; |
92 |
long fpos; |
93 |
double outaspect = 0.0; |
94 |
double d; |
95 |
int i, j; |
96 |
SET_DEFAULT_BINARY(); |
97 |
SET_FILE_BINARY(stdin); |
98 |
SET_FILE_BINARY(stdout); |
99 |
if (signal(SIGINT, quit) == SIG_IGN) |
100 |
signal(SIGINT, SIG_IGN); |
101 |
#ifdef SIGHUP |
102 |
if (signal(SIGHUP, quit) == SIG_IGN) |
103 |
signal(SIGHUP, SIG_IGN); |
104 |
#endif |
105 |
signal(SIGTERM, quit); |
106 |
#ifdef SIGPIPE |
107 |
signal(SIGPIPE, quit); |
108 |
#endif |
109 |
#ifdef SIGXCPU |
110 |
signal(SIGXCPU, quit); |
111 |
signal(SIGXFSZ, quit); |
112 |
#endif |
113 |
|
114 |
progname = argv[0] = fixargv0(argv[0]); |
115 |
|
116 |
for (i = 1; i < argc; i++) |
117 |
if (argv[i][0] == '-') |
118 |
switch (argv[i][1]) { |
119 |
case 'x': |
120 |
i++; |
121 |
if (argv[i][0] == '/') { |
122 |
x_c = 1.0/atof(argv[i]+1); |
123 |
ncols = 0; |
124 |
} else |
125 |
ncols = atoi(argv[i]); |
126 |
break; |
127 |
case 'y': |
128 |
i++; |
129 |
if (argv[i][0] == '/') { |
130 |
y_r = 1.0/atof(argv[i]+1); |
131 |
nrows = 0; |
132 |
} else |
133 |
nrows = atoi(argv[i]); |
134 |
break; |
135 |
case 'c': |
136 |
correctaspect = !correctaspect; |
137 |
break; |
138 |
case 'p': |
139 |
i++; |
140 |
outaspect = atof(argv[i]); |
141 |
break; |
142 |
case 'e': |
143 |
if (argv[i+1][0] == '+' || argv[i+1][0] == '-') |
144 |
d = pow(2.0, atof(argv[i+1])); |
145 |
else |
146 |
d = atof(argv[i+1]); |
147 |
if (d < 1e-20 || d > 1e20) { |
148 |
fprintf(stderr, |
149 |
"%s: exposure out of range\n", |
150 |
argv[0]); |
151 |
quit(1); |
152 |
} |
153 |
switch (argv[i][2]) { |
154 |
case '\0': |
155 |
scalecolor(exposure, d); |
156 |
break; |
157 |
case 'r': |
158 |
colval(exposure,RED) *= d; |
159 |
break; |
160 |
case 'g': |
161 |
colval(exposure,GRN) *= d; |
162 |
break; |
163 |
case 'b': |
164 |
colval(exposure,BLU) *= d; |
165 |
break; |
166 |
default: |
167 |
goto badopt; |
168 |
} |
169 |
i++; |
170 |
break; |
171 |
case 'f': |
172 |
lampdat = argv[++i]; |
173 |
break; |
174 |
case 't': |
175 |
lamptype = argv[++i]; |
176 |
break; |
177 |
case '1': |
178 |
singlepass = 1; |
179 |
break; |
180 |
case '2': |
181 |
singlepass = 0; |
182 |
break; |
183 |
case 'n': |
184 |
npts = atoi(argv[++i]) / 2; |
185 |
break; |
186 |
case 's': |
187 |
spread = atof(argv[++i]); |
188 |
break; |
189 |
case 'a': |
190 |
avghot = !avghot; |
191 |
break; |
192 |
case 'h': |
193 |
hotlvl = atof(argv[++i]); |
194 |
break; |
195 |
case 'r': |
196 |
rad = atof(argv[++i]); |
197 |
break; |
198 |
case 'm': |
199 |
thresh = atof(argv[++i]); |
200 |
if (rad <= FTINY) |
201 |
rad = 0.6; |
202 |
break; |
203 |
case 'b': |
204 |
rad = thresh = 0.0; |
205 |
break; |
206 |
default:; |
207 |
badopt: |
208 |
fprintf(stderr, "%s: unknown option: %s\n", |
209 |
progname, argv[i]); |
210 |
quit(1); |
211 |
break; |
212 |
} |
213 |
else |
214 |
break; |
215 |
/* get lamp data (if necessary) */ |
216 |
if (lamptype != NULL) { |
217 |
if (loadlamps(lampdat) < 0) |
218 |
quit(1); |
219 |
if ((lampcolor = matchlamp(lamptype)) == NULL) { |
220 |
fprintf(stderr, "%s: unknown lamp type\n", lamptype); |
221 |
quit(1); |
222 |
} |
223 |
for (j = 0; j < 3; j++) |
224 |
if (lampcolor[j] > 1e-4) |
225 |
colval(exposure,j) /= lampcolor[j]; |
226 |
freelamps(); |
227 |
} |
228 |
/* open input file */ |
229 |
if (i == argc) { |
230 |
if (singlepass) |
231 |
fin = stdin; |
232 |
else { |
233 |
tfname = mktemp(template); |
234 |
if ((fin = fopen(tfname, "w+")) == NULL) { |
235 |
fprintf(stderr, "%s: can't create ", progname); |
236 |
fprintf(stderr, "temp file \"%s\"\n", tfname); |
237 |
quit(1); |
238 |
} |
239 |
copyfile(stdin, fin); |
240 |
if (fseek(fin, 0L, 0) == -1) { |
241 |
fprintf(stderr, "%s: seek fail\n", progname); |
242 |
quit(1); |
243 |
} |
244 |
} |
245 |
} else if (i == argc-1) { |
246 |
if ((fin = fopen(argv[i], "r")) == NULL) { |
247 |
fprintf(stderr, "%s: can't open file \"%s\"\n", |
248 |
progname, argv[i]); |
249 |
quit(1); |
250 |
} |
251 |
} else { |
252 |
fprintf(stderr, "%s: bad # file arguments\n", progname); |
253 |
quit(1); |
254 |
} |
255 |
/* get header */ |
256 |
getheader(fin, headline, NULL); |
257 |
if (wrongformat) { |
258 |
fprintf(stderr, "%s: input must be a Radiance picture\n", |
259 |
progname); |
260 |
quit(1); |
261 |
} |
262 |
/* add new header info. */ |
263 |
printargs(i, argv, stdout); |
264 |
/* get picture size */ |
265 |
if ((order = fgetresolu(&xres, &yres, fin)) < 0) { |
266 |
fprintf(stderr, "%s: bad picture size\n", progname); |
267 |
quit(1); |
268 |
} |
269 |
if (!(order & YMAJOR)) |
270 |
inpaspect = 1.0/inpaspect; |
271 |
/* wrap around for cylindrical view? */ |
272 |
wrapfilt = gotview && ourview.type == VT_CYL && |
273 |
ourview.horiz >= 360.-FTINY && order & YMAJOR; |
274 |
/* compute output resolution */ |
275 |
if (ncols <= 0) |
276 |
ncols = x_c*xres + .5; |
277 |
if (nrows <= 0) |
278 |
nrows = y_r*yres + .5; |
279 |
if (outaspect > .01) { |
280 |
d = inpaspect * yres/xres / outaspect; |
281 |
if (d * ncols > nrows) |
282 |
ncols = nrows / d; |
283 |
else |
284 |
nrows = ncols * d; |
285 |
} |
286 |
x_c = (double)ncols/xres; |
287 |
y_r = (double)nrows/yres; |
288 |
|
289 |
if (singlepass) { /* skip exposure, etc. */ |
290 |
pass1default(); |
291 |
pass2(fin); |
292 |
quit(0); |
293 |
} |
294 |
|
295 |
fpos = ftell(fin); /* save input file position */ |
296 |
|
297 |
pass1(fin); |
298 |
|
299 |
if (fseek(fin, fpos, 0) == -1) { |
300 |
fprintf(stderr, "%s: seek fail\n", progname); |
301 |
quit(1); |
302 |
} |
303 |
pass2(fin); |
304 |
|
305 |
quit(estatus); |
306 |
} |
307 |
|
308 |
|
309 |
double |
310 |
rgb_bright(clr) |
311 |
COLOR clr; |
312 |
{ |
313 |
return(bright(clr)); |
314 |
} |
315 |
|
316 |
|
317 |
double |
318 |
xyz_bright(clr) |
319 |
COLOR clr; |
320 |
{ |
321 |
return(clr[CIEY]); |
322 |
} |
323 |
|
324 |
|
325 |
double (*ourbright)() = rgb_bright; |
326 |
|
327 |
|
328 |
int |
329 |
headline(s) /* process line from header */ |
330 |
char *s; |
331 |
{ |
332 |
char fmt[32]; |
333 |
|
334 |
fputs(s, stdout); /* copy to output */ |
335 |
if (isaspect(s)) /* get aspect ratio */ |
336 |
inpaspect *= aspectval(s); |
337 |
else if (isexpos(s)) /* get exposure */ |
338 |
hotlvl *= exposval(s); |
339 |
else if (formatval(fmt, s)) { /* get format */ |
340 |
wrongformat = 0; |
341 |
if (!strcmp(COLRFMT, fmt)) |
342 |
ourbright = rgb_bright; |
343 |
else if (!strcmp(CIEFMT, fmt)) |
344 |
ourbright = xyz_bright; |
345 |
else |
346 |
wrongformat = !globmatch(PICFMT, fmt); |
347 |
} else if (isview(s) && sscanview(&ourview, s) > 0) |
348 |
gotview++; |
349 |
return(0); |
350 |
} |
351 |
|
352 |
|
353 |
copyfile(in, out) /* copy a file */ |
354 |
register FILE *in, *out; |
355 |
{ |
356 |
register int c; |
357 |
|
358 |
while ((c = getc(in)) != EOF) |
359 |
putc(c, out); |
360 |
|
361 |
if (ferror(out)) { |
362 |
fprintf(stderr, "%s: write error in copyfile\n", progname); |
363 |
quit(1); |
364 |
} |
365 |
} |
366 |
|
367 |
|
368 |
pass1(in) /* first pass of picture file */ |
369 |
FILE *in; |
370 |
{ |
371 |
int i; |
372 |
COLOR *scan; |
373 |
|
374 |
pass1init(); |
375 |
|
376 |
scan = (COLOR *)malloc(xres*sizeof(COLOR)); |
377 |
if (scan == NULL) { |
378 |
fprintf(stderr, "%s: out of memory\n", progname); |
379 |
quit(1); |
380 |
} |
381 |
for (i = 0; i < yres; i++) { |
382 |
if (freadscan(scan, xres, in) < 0) { |
383 |
nrows = (long)nrows * i / yres; /* adjust frame */ |
384 |
if (nrows <= 0) { |
385 |
fprintf(stderr, "%s: empty frame\n", progname); |
386 |
quit(1); |
387 |
} |
388 |
fprintf(stderr, "%s: warning - partial frame (%d%%)\n", |
389 |
progname, (int)(100L*i/yres)); |
390 |
yres = i; |
391 |
y_r = (double)nrows/yres; |
392 |
estatus++; |
393 |
break; |
394 |
} |
395 |
pass1scan(scan, i); |
396 |
} |
397 |
free((void *)scan); |
398 |
} |
399 |
|
400 |
|
401 |
pass2(in) /* last pass on file, write to stdout */ |
402 |
FILE *in; |
403 |
{ |
404 |
int yread; |
405 |
int ycent, xcent; |
406 |
int r, c; |
407 |
|
408 |
pass2init(); |
409 |
scan2init(); |
410 |
yread = 0; |
411 |
for (r = 0; r < nrows; r++) { |
412 |
ycent = (r+.5)*yres/nrows; |
413 |
while (yread <= ycent+yrad) { |
414 |
if (yread < yres) { |
415 |
if (freadscan(scanin[yread%barsize], |
416 |
xres, in) < 0) { |
417 |
fprintf(stderr, |
418 |
"%s: truncated input (y=%d)\n", |
419 |
progname, yres-1-yread); |
420 |
quit(1); |
421 |
} |
422 |
pass2scan(scanin[yread%barsize], yread); |
423 |
} |
424 |
yread++; |
425 |
} |
426 |
if (obarsize > 0) |
427 |
scan2sync(r); |
428 |
for (c = 0; c < ncols; c++) { |
429 |
xcent = (c+.5)*xres/ncols; |
430 |
if (thresh > FTINY) |
431 |
dothresh(xcent, ycent, c, r); |
432 |
else if (rad > FTINY) |
433 |
dogauss(scanout[c], xcent, ycent, c, r); |
434 |
else |
435 |
dobox(scanout[c], xcent, ycent, c, r); |
436 |
} |
437 |
if (scanout != NULL && fwritescan(scanout, ncols, stdout) < 0) { |
438 |
fprintf(stderr, "%s: write error in pass2\n", progname); |
439 |
quit(1); |
440 |
} |
441 |
} |
442 |
/* skip leftover input */ |
443 |
while (yread < yres) { |
444 |
if (freadscan(scanin[0], xres, in) < 0) |
445 |
break; |
446 |
yread++; |
447 |
} |
448 |
scan2flush(); /* flush output */ |
449 |
} |
450 |
|
451 |
|
452 |
scan2init() /* prepare scanline arrays */ |
453 |
{ |
454 |
COLOR ctmp; |
455 |
double d; |
456 |
register int i; |
457 |
|
458 |
xbrad = xres/ncols/2 + 1; |
459 |
ybrad = yres/nrows/2 + 1; |
460 |
if (rad > FTINY) { |
461 |
if (nrows >= yres && ncols >= xres) |
462 |
rad *= (y_r + x_c)/2.0; |
463 |
|
464 |
if (thresh > FTINY) { |
465 |
orad = CHECKRAD*THRESHRAD*rad + 1; |
466 |
xrad = orad/x_c + xbrad; |
467 |
yrad = orad/y_r + ybrad; |
468 |
obarsize = 2*orad + 1; |
469 |
} else { |
470 |
xrad = CHECKRAD*rad/x_c + 1; |
471 |
yrad = CHECKRAD*rad/y_r + 1; |
472 |
} |
473 |
initmask(); /* initialize filter table */ |
474 |
} else { |
475 |
xrad = xbrad; |
476 |
yrad = ybrad; |
477 |
} |
478 |
barsize = 2*yrad + 1; |
479 |
scanin = (COLOR **)malloc(barsize*sizeof(COLOR *)); |
480 |
if (scanin == NULL) |
481 |
goto memerr; |
482 |
for (i = 0; i < barsize; i++) { |
483 |
scanin[i] = (COLOR *)malloc(xres*sizeof(COLOR)); |
484 |
if (scanin[i] == NULL) |
485 |
goto memerr; |
486 |
} |
487 |
if (obarsize > 0) { |
488 |
scoutbar = (COLOR **)malloc(obarsize*sizeof(COLOR *)); |
489 |
greybar = (float **)malloc(obarsize*sizeof(float *)); |
490 |
if (scoutbar == NULL | greybar == NULL) |
491 |
goto memerr; |
492 |
for (i = 0; i < obarsize; i++) { |
493 |
scoutbar[i] = (COLOR *)malloc(ncols*sizeof(COLOR)); |
494 |
greybar[i] = (float *)malloc(ncols*sizeof(float)); |
495 |
if (scoutbar[i] == NULL | greybar[i] == NULL) |
496 |
goto memerr; |
497 |
} |
498 |
} else { |
499 |
scanout = (COLOR *)malloc(ncols*sizeof(COLOR)); |
500 |
if (scanout == NULL) |
501 |
goto memerr; |
502 |
} |
503 |
/* record pixel aspect ratio */ |
504 |
if (!correctaspect) { |
505 |
d = order & YMAJOR ? x_c/y_r : y_r/x_c ; |
506 |
if (!FEQ(d,1.0)) |
507 |
fputaspect(d, stdout); |
508 |
} |
509 |
/* record exposure */ |
510 |
d = (*ourbright)(exposure); |
511 |
if (!FEQ(d,1.0)) |
512 |
fputexpos(d, stdout); |
513 |
/* record color correction */ |
514 |
copycolor(ctmp, exposure); |
515 |
scalecolor(ctmp, 1.0/d); |
516 |
if (!FEQ(colval(ctmp,RED),colval(ctmp,GRN)) || |
517 |
!FEQ(colval(ctmp,GRN),colval(ctmp,BLU))) |
518 |
fputcolcor(ctmp, stdout); |
519 |
printf("\n"); |
520 |
/* write out resolution */ |
521 |
fputresolu(order, ncols, nrows, stdout); |
522 |
return; |
523 |
memerr: |
524 |
fprintf(stderr, "%s: out of memory\n", progname); |
525 |
quit(1); |
526 |
} |
527 |
|
528 |
|
529 |
scan2sync(r) /* synchronize grey averages and output scan */ |
530 |
int r; |
531 |
{ |
532 |
static int nextrow = 0; |
533 |
COLOR ctmp; |
534 |
int ybot; |
535 |
register int c; |
536 |
/* average input scanlines */ |
537 |
while (nextrow <= r+orad && nextrow < nrows) { |
538 |
ybot = (nextrow+.5)*yres/nrows; |
539 |
for (c = 0; c < ncols; c++) { |
540 |
dobox(ctmp, (int)((c+.5)*xres/ncols),ybot, c,nextrow); |
541 |
greybar[nextrow%obarsize][c] = (*ourbright)(ctmp); |
542 |
} |
543 |
/* and zero output scanline */ |
544 |
bzero((char *)scoutbar[nextrow%obarsize], ncols*sizeof(COLOR)); |
545 |
nextrow++; |
546 |
} |
547 |
/* point to top scanline for output */ |
548 |
if (r-orad >= 0) |
549 |
scanout = scoutbar[(r-orad)%obarsize]; |
550 |
else |
551 |
scanout = NULL; |
552 |
} |
553 |
|
554 |
|
555 |
scan2flush() /* flush output buffer */ |
556 |
{ |
557 |
register int r; |
558 |
|
559 |
for (r = nrows-orad; r < nrows; r++) |
560 |
if (fwritescan(scoutbar[r%obarsize], ncols, stdout) < 0) |
561 |
break; |
562 |
if (fflush(stdout) < 0) { |
563 |
fprintf(stderr, "%s: write error at end of pass2\n", progname); |
564 |
quit(1); |
565 |
} |
566 |
} |
567 |
|
568 |
|
569 |
void |
570 |
quit(code) /* remove temporary file and exit */ |
571 |
int code; |
572 |
{ |
573 |
if (tfname != NULL) |
574 |
unlink(tfname); |
575 |
exit(code); |
576 |
} |