1 |
< |
/* Copyright (c) 1991 Regents of the University of California */ |
1 |
> |
/* Copyright (c) 1994 Regents of the University of California */ |
2 |
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3 |
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#ifndef lint |
4 |
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static char SCCSid[] = "$SunId$ LBL"; |
12 |
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13 |
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#include "standard.h" |
14 |
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|
15 |
– |
#include <fcntl.h> |
16 |
– |
|
15 |
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#include <ctype.h> |
16 |
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|
17 |
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#include "view.h" |
20 |
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|
21 |
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#include "resolu.h" |
22 |
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|
25 |
– |
#ifndef BSD |
26 |
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#define vfork fork |
27 |
– |
#endif |
28 |
– |
|
23 |
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#define pscan(y) (ourpict+(y)*hresolu) |
24 |
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#define zscan(y) (ourzbuf+(y)*hresolu) |
25 |
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|
34 |
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|
35 |
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struct position {int x,y; float z;}; |
36 |
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|
37 |
+ |
#define NSTEPS 64 /* number steps in overlap prescan */ |
38 |
+ |
#define MINSTEP 4 /* minimum worthwhile preview step */ |
39 |
+ |
|
40 |
+ |
struct bound {int min,max;}; |
41 |
+ |
|
42 |
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VIEW ourview = STDVIEW; /* desired view */ |
43 |
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int hresolu = 512; /* horizontal resolution */ |
44 |
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int vresolu = 512; /* vertical resolution */ |
170 |
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goto badopt; |
171 |
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check(3,"s"); |
172 |
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gotvfile = viewfile(argv[++i], &ourview, 0, 0); |
173 |
< |
if (gotvfile < 0) { |
174 |
< |
perror(argv[i]); |
175 |
< |
exit(1); |
177 |
< |
} else if (gotvfile == 0) { |
173 |
> |
if (gotvfile < 0) |
174 |
> |
syserror(argv[i]); |
175 |
> |
else if (gotvfile == 0) { |
176 |
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fprintf(stderr, "%s: bad view file\n", |
177 |
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argv[i]); |
178 |
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exit(1); |
191 |
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if (fillsamp == 1) |
192 |
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fillo &= ~F_BACK; |
193 |
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/* set view */ |
194 |
< |
if (err = setview(&ourview)) { |
194 |
> |
if ((err = setview(&ourview)) != NULL) { |
195 |
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fprintf(stderr, "%s: %s\n", progname, err); |
196 |
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exit(1); |
197 |
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} |
198 |
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normaspect(viewaspect(&ourview), &pixaspect, &hresolu, &vresolu); |
199 |
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/* allocate frame */ |
200 |
< |
ourpict = (COLR *)malloc(hresolu*vresolu*sizeof(COLR)); |
201 |
< |
ourzbuf = (float *)calloc(hresolu*vresolu,sizeof(float)); |
200 |
> |
ourpict = (COLR *)bmalloc(hresolu*vresolu*sizeof(COLR)); |
201 |
> |
ourzbuf = (float *)bmalloc(hresolu*vresolu*sizeof(float)); |
202 |
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if (ourpict == NULL || ourzbuf == NULL) |
203 |
< |
syserror(); |
203 |
> |
syserror(progname); |
204 |
> |
bzero((char *)ourzbuf, hresolu*vresolu*sizeof(float)); |
205 |
> |
/* new header */ |
206 |
> |
newheader("RADIANCE", stdout); |
207 |
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/* get input */ |
208 |
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for ( ; i < argc; i += 2) |
209 |
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addpicture(argv[i], argv[i+1]); |
214 |
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fillpicture(fillfunc); |
215 |
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/* close calculation */ |
216 |
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caldone(); |
217 |
+ |
/* aft clipping */ |
218 |
+ |
clipaft(); |
219 |
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/* add to header */ |
220 |
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printargs(argc, argv, stdout); |
221 |
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if (gotvfile) { |
250 |
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{ |
251 |
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char fmt[32]; |
252 |
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|
253 |
< |
if (isformat(s)) { |
254 |
< |
formatval(fmt, s); |
253 |
> |
if (isheadid(s)) |
254 |
> |
return; |
255 |
> |
if (formatval(fmt, s)) { |
256 |
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wrongformat = strcmp(fmt, COLRFMT); |
257 |
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return; |
258 |
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} |
277 |
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COLR *scanin; |
278 |
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float *zin; |
279 |
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struct position *plast; |
280 |
+ |
struct bound *xlim, ylim; |
281 |
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int y; |
282 |
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/* open picture file */ |
283 |
< |
if ((pfp = fopen(pfile, "r")) == NULL) { |
284 |
< |
perror(pfile); |
280 |
< |
exit(1); |
281 |
< |
} |
283 |
> |
if ((pfp = fopen(pfile, "r")) == NULL) |
284 |
> |
syserror(pfile); |
285 |
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/* get header with exposure and view */ |
286 |
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theirexp = 1.0; |
287 |
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gotview = 0; |
301 |
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} |
302 |
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/* compute transformation */ |
303 |
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hasmatrix = pixform(theirs2ours, &theirview, &ourview); |
301 |
– |
/* allocate scanlines */ |
302 |
– |
scanin = (COLR *)malloc(scanlen(&tresolu)*sizeof(COLR)); |
303 |
– |
zin = (float *)malloc(scanlen(&tresolu)*sizeof(float)); |
304 |
– |
plast = (struct position *)calloc(scanlen(&tresolu), |
305 |
– |
sizeof(struct position)); |
306 |
– |
if (scanin == NULL || zin == NULL || plast == NULL) |
307 |
– |
syserror(); |
304 |
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/* get z specification or file */ |
305 |
+ |
zin = (float *)malloc(scanlen(&tresolu)*sizeof(float)); |
306 |
+ |
if (zin == NULL) |
307 |
+ |
syserror(progname); |
308 |
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if ((zfd = open(zspec, O_RDONLY)) == -1) { |
309 |
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double zvalue; |
310 |
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register int x; |
311 |
< |
if (!isfloat(zspec) || (zvalue = atof(zspec)) <= 0.0) { |
312 |
< |
perror(zspec); |
314 |
< |
exit(1); |
315 |
< |
} |
311 |
> |
if (!isfloat(zspec) || (zvalue = atof(zspec)) <= 0.0) |
312 |
> |
syserror(zspec); |
313 |
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for (x = scanlen(&tresolu); x-- > 0; ) |
314 |
|
zin[x] = zvalue; |
315 |
|
} |
316 |
< |
/* load image */ |
317 |
< |
for (y = 0; y < numscans(&tresolu); y++) { |
316 |
> |
/* compute transferrable perimeter */ |
317 |
> |
xlim = (struct bound *)malloc(numscans(&tresolu)*sizeof(struct bound)); |
318 |
> |
if (xlim == NULL) |
319 |
> |
syserror(progname); |
320 |
> |
if (!getperim(xlim, &ylim, zin, zfd)) { /* overlapping area? */ |
321 |
> |
free((char *)zin); |
322 |
> |
free((char *)xlim); |
323 |
> |
if (zfd != -1) |
324 |
> |
close(zfd); |
325 |
> |
fclose(pfp); |
326 |
> |
return; |
327 |
> |
} |
328 |
> |
/* allocate scanlines */ |
329 |
> |
scanin = (COLR *)malloc(scanlen(&tresolu)*sizeof(COLR)); |
330 |
> |
plast = (struct position *)calloc(scanlen(&tresolu), |
331 |
> |
sizeof(struct position)); |
332 |
> |
if (scanin == NULL | plast == NULL) |
333 |
> |
syserror(progname); |
334 |
> |
/* skip to starting point */ |
335 |
> |
for (y = 0; y < ylim.min; y++) |
336 |
|
if (freadcolrs(scanin, scanlen(&tresolu), pfp) < 0) { |
337 |
|
fprintf(stderr, "%s: read error\n", pfile); |
338 |
|
exit(1); |
339 |
|
} |
340 |
< |
if (zfd != -1 && read(zfd,(char *)zin, |
341 |
< |
scanlen(&tresolu)*sizeof(float)) |
342 |
< |
< scanlen(&tresolu)*sizeof(float)) { |
343 |
< |
fprintf(stderr, "%s: read error\n", zspec); |
340 |
> |
if (zfd != -1 && lseek(zfd, |
341 |
> |
(long)ylim.min*scanlen(&tresolu)*sizeof(float), 0) < 0) |
342 |
> |
syserror(zspec); |
343 |
> |
/* load image */ |
344 |
> |
for (y = ylim.min; y <= ylim.max; y++) { |
345 |
> |
if (freadcolrs(scanin, scanlen(&tresolu), pfp) < 0) { |
346 |
> |
fprintf(stderr, "%s: read error\n", pfile); |
347 |
|
exit(1); |
348 |
|
} |
349 |
< |
addscanline(y, scanin, zin, plast); |
349 |
> |
if (zfd != -1 && read(zfd, (char *)zin, |
350 |
> |
scanlen(&tresolu)*sizeof(float)) |
351 |
> |
< scanlen(&tresolu)*sizeof(float)) |
352 |
> |
syserror(zspec); |
353 |
> |
addscanline(xlim+y, y, scanin, zin, plast); |
354 |
|
} |
355 |
|
/* clean up */ |
356 |
+ |
free((char *)xlim); |
357 |
|
free((char *)scanin); |
358 |
|
free((char *)zin); |
359 |
|
free((char *)plast); |
404 |
|
} |
405 |
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|
406 |
|
|
407 |
< |
addscanline(y, pline, zline, lasty) /* add scanline to output */ |
407 |
> |
addscanline(xl, y, pline, zline, lasty) /* add scanline to output */ |
408 |
> |
struct bound *xl; |
409 |
|
int y; |
410 |
|
COLR *pline; |
411 |
|
float *zline; |
412 |
|
struct position *lasty; /* input/output */ |
413 |
|
{ |
390 |
– |
extern double sqrt(); |
414 |
|
FVECT pos; |
415 |
|
struct position lastx, newpos; |
416 |
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register int x; |
417 |
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|
418 |
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lastx.z = 0; |
419 |
< |
for (x = scanlen(&tresolu); x-- > 0; ) { |
419 |
> |
for (x = xl->max; x >= xl->min; x--) { |
420 |
|
pix2loc(pos, &tresolu, x, y); |
421 |
|
pos[2] = zline[x]; |
422 |
|
if (movepixel(pos) < 0) { |
499 |
|
movepixel(pos) /* reposition image point */ |
500 |
|
FVECT pos; |
501 |
|
{ |
502 |
+ |
double d0, d1; |
503 |
|
FVECT pt, direc; |
504 |
|
|
505 |
|
if (pos[2] <= 0) /* empty pixel */ |
506 |
|
return(-1); |
507 |
+ |
if (normdist && theirview.type == VT_PER) { /* adjust distance */ |
508 |
+ |
d0 = pos[0] + theirview.hoff - .5; |
509 |
+ |
d1 = pos[1] + theirview.voff - .5; |
510 |
+ |
pos[2] /= sqrt(1. + d0*d0*theirview.hn2 + d1*d1*theirview.vn2); |
511 |
+ |
} |
512 |
|
if (hasmatrix) { |
513 |
|
pos[0] += theirview.hoff - .5; |
514 |
|
pos[1] += theirview.voff - .5; |
515 |
|
if (theirview.type == VT_PER) { |
487 |
– |
if (normdist) /* adjust for eye-ray distance */ |
488 |
– |
pos[2] /= sqrt( 1. |
489 |
– |
+ pos[0]*pos[0]*theirview.hn2 |
490 |
– |
+ pos[1]*pos[1]*theirview.vn2 ); |
516 |
|
pos[0] *= pos[2]; |
517 |
|
pos[1] *= pos[2]; |
518 |
|
} |
527 |
|
pos[1] += .5 - ourview.voff; |
528 |
|
return(0); |
529 |
|
} |
530 |
< |
if (viewray(pt, direc, &theirview, pos[0], pos[1]) < 0) |
530 |
> |
if (viewray(pt, direc, &theirview, pos[0], pos[1]) < -FTINY) |
531 |
|
return(-1); |
532 |
|
pt[0] += direc[0]*pos[2]; |
533 |
|
pt[1] += direc[1]*pos[2]; |
539 |
|
} |
540 |
|
|
541 |
|
|
542 |
+ |
getperim(xl, yl, zline, zfd) /* compute overlapping image area */ |
543 |
+ |
register struct bound *xl; |
544 |
+ |
struct bound *yl; |
545 |
+ |
float *zline; |
546 |
+ |
int zfd; |
547 |
+ |
{ |
548 |
+ |
int step; |
549 |
+ |
FVECT pos; |
550 |
+ |
register int x, y; |
551 |
+ |
/* set up step size */ |
552 |
+ |
if (scanlen(&tresolu) < numscans(&tresolu)) |
553 |
+ |
step = scanlen(&tresolu)/NSTEPS; |
554 |
+ |
else |
555 |
+ |
step = numscans(&tresolu)/NSTEPS; |
556 |
+ |
if (step < MINSTEP) { /* not worth cropping? */ |
557 |
+ |
yl->min = 0; |
558 |
+ |
yl->max = numscans(&tresolu) - 1; |
559 |
+ |
x = scanlen(&tresolu) - 1; |
560 |
+ |
for (y = numscans(&tresolu); y--; ) { |
561 |
+ |
xl[y].min = 0; |
562 |
+ |
xl[y].max = x; |
563 |
+ |
} |
564 |
+ |
return(1); |
565 |
+ |
} |
566 |
+ |
yl->min = 32000; yl->max = 0; /* search for points on image */ |
567 |
+ |
for (y = step - 1; y < numscans(&tresolu); y += step) { |
568 |
+ |
if (zfd != -1) { |
569 |
+ |
if (lseek(zfd, (long)y*scanlen(&tresolu)*sizeof(float), |
570 |
+ |
0) < 0) |
571 |
+ |
syserror("lseek"); |
572 |
+ |
if (read(zfd, (char *)zline, |
573 |
+ |
scanlen(&tresolu)*sizeof(float)) |
574 |
+ |
< scanlen(&tresolu)*sizeof(float)) |
575 |
+ |
syserror("read"); |
576 |
+ |
} |
577 |
+ |
xl[y].min = 32000; xl[y].max = 0; /* x max */ |
578 |
+ |
for (x = scanlen(&tresolu); (x -= step) > 0; ) { |
579 |
+ |
pix2loc(pos, &tresolu, x, y); |
580 |
+ |
pos[2] = zline[x]; |
581 |
+ |
if (movepixel(pos) == 0 && pos[0] >= 0 && |
582 |
+ |
pos[0] < 1 && pos[1] >= 0 && |
583 |
+ |
pos[1] < 1) { |
584 |
+ |
xl[y].max = x + step - 1; |
585 |
+ |
xl[y].min = x - step + 1; /* x min */ |
586 |
+ |
if (xl[y].min < 0) |
587 |
+ |
xl[y].min = 0; |
588 |
+ |
for (x = step - 1; x < xl[y].max; x += step) { |
589 |
+ |
pix2loc(pos, &tresolu, x, y); |
590 |
+ |
pos[2] = zline[x]; |
591 |
+ |
if (movepixel(pos) == 0 && |
592 |
+ |
pos[0] >= 0 && |
593 |
+ |
pos[0] < 1 && |
594 |
+ |
pos[1] >= 0 && |
595 |
+ |
pos[1] < 1) { |
596 |
+ |
xl[y].min = x - step + 1; |
597 |
+ |
break; |
598 |
+ |
} |
599 |
+ |
} |
600 |
+ |
if (y < yl->min) /* y limits */ |
601 |
+ |
yl->min = y - step + 1; |
602 |
+ |
yl->max = y + step - 1; |
603 |
+ |
break; |
604 |
+ |
} |
605 |
+ |
} |
606 |
+ |
/* fill in between */ |
607 |
+ |
if (y < step) { |
608 |
+ |
xl[y-1].min = xl[y].min; |
609 |
+ |
xl[y-1].max = xl[y].max; |
610 |
+ |
} else { |
611 |
+ |
if (xl[y].min < xl[y-step].min) |
612 |
+ |
xl[y-1].min = xl[y].min; |
613 |
+ |
else |
614 |
+ |
xl[y-1].min = xl[y-step].min; |
615 |
+ |
if (xl[y].max > xl[y-step].max) |
616 |
+ |
xl[y-1].max = xl[y].max; |
617 |
+ |
else |
618 |
+ |
xl[y-1].max = xl[y-step].max; |
619 |
+ |
} |
620 |
+ |
for (x = 2; x < step; x++) |
621 |
+ |
copystruct(xl+y-x, xl+y-1); |
622 |
+ |
} |
623 |
+ |
if (yl->max >= numscans(&tresolu)) |
624 |
+ |
yl->max = numscans(&tresolu) - 1; |
625 |
+ |
for (x = numscans(&tresolu) - 1; x > y; x--) /* fill bottom rows */ |
626 |
+ |
copystruct(xl+x, xl+y); |
627 |
+ |
return(yl->max >= yl->min); |
628 |
+ |
} |
629 |
+ |
|
630 |
+ |
|
631 |
|
backpicture(fill, samp) /* background fill algorithm */ |
632 |
|
int (*fill)(); |
633 |
|
int samp; |
638 |
|
/* get back buffer */ |
639 |
|
yback = (int *)malloc(hresolu*sizeof(int)); |
640 |
|
if (yback == NULL) |
641 |
< |
syserror(); |
641 |
> |
syserror(progname); |
642 |
|
for (x = 0; x < hresolu; x++) |
643 |
|
yback[x] = -2; |
644 |
|
/* |
735 |
|
} |
736 |
|
|
737 |
|
|
738 |
+ |
clipaft() /* perform aft clipping as indicated */ |
739 |
+ |
{ |
740 |
+ |
register int x, y; |
741 |
+ |
double tstdist; |
742 |
+ |
double yzn2, vx; |
743 |
+ |
|
744 |
+ |
if (ourview.vaft <= FTINY) |
745 |
+ |
return; |
746 |
+ |
tstdist = ourview.vaft - ourview.vfore; |
747 |
+ |
for (y = 0; y < vresolu; y++) { |
748 |
+ |
if (ourview.type == VT_PER) { /* adjust distance */ |
749 |
+ |
yzn2 = (y+.5)/vresolu + ourview.voff - .5; |
750 |
+ |
yzn2 = 1. + yzn2*yzn2*ourview.vn2; |
751 |
+ |
tstdist = (ourview.vaft - ourview.vfore)*sqrt(yzn2); |
752 |
+ |
} |
753 |
+ |
for (x = 0; x < hresolu; x++) |
754 |
+ |
if (zscan(y)[x] > tstdist) { |
755 |
+ |
if (ourview.type == VT_PER) { |
756 |
+ |
vx = (x+.5)/hresolu + ourview.hoff - .5; |
757 |
+ |
if (zscan(y)[x] <= (ourview.vaft - |
758 |
+ |
ourview.vfore) * |
759 |
+ |
sqrt(vx*vx*ourview.hn2 + yzn2)) |
760 |
+ |
continue; |
761 |
+ |
} |
762 |
+ |
bzero(pscan(y)[x], sizeof(COLR)); |
763 |
+ |
zscan(y)[x] = 0.0; |
764 |
+ |
} |
765 |
+ |
} |
766 |
+ |
} |
767 |
+ |
|
768 |
+ |
|
769 |
|
writepicture() /* write out picture */ |
770 |
|
{ |
771 |
|
int y; |
773 |
|
fprtresolu(hresolu, vresolu, stdout); |
774 |
|
for (y = vresolu-1; y >= 0; y--) |
775 |
|
if (fwritecolrs(pscan(y), hresolu, stdout) < 0) |
776 |
< |
syserror(); |
776 |
> |
syserror(progname); |
777 |
|
} |
778 |
|
|
779 |
|
|
780 |
|
writedistance(fname) /* write out z file */ |
781 |
|
char *fname; |
782 |
|
{ |
638 |
– |
extern double sqrt(); |
783 |
|
int donorm = normdist && ourview.type == VT_PER; |
784 |
|
int fd; |
785 |
|
int y; |
786 |
|
float *zout; |
787 |
|
|
788 |
< |
if ((fd = open(fname, O_WRONLY|O_CREAT|O_TRUNC, 0666)) == -1) { |
789 |
< |
perror(fname); |
646 |
< |
exit(1); |
647 |
< |
} |
788 |
> |
if ((fd = open(fname, O_WRONLY|O_CREAT|O_TRUNC, 0666)) == -1) |
789 |
> |
syserror(fname); |
790 |
|
if (donorm |
791 |
|
&& (zout = (float *)malloc(hresolu*sizeof(float))) == NULL) |
792 |
< |
syserror(); |
792 |
> |
syserror(progname); |
793 |
|
for (y = vresolu-1; y >= 0; y--) { |
794 |
|
if (donorm) { |
795 |
|
double vx, yzn2; |
804 |
|
} else |
805 |
|
zout = zscan(y); |
806 |
|
if (write(fd, (char *)zout, hresolu*sizeof(float)) |
807 |
< |
< hresolu*sizeof(float)) { |
808 |
< |
perror(fname); |
667 |
< |
exit(1); |
668 |
< |
} |
807 |
> |
< hresolu*sizeof(float)) |
808 |
> |
syserror(fname); |
809 |
|
} |
810 |
|
if (donorm) |
811 |
|
free((char *)zout); |
851 |
|
cp = combuf; |
852 |
|
wp = argv; |
853 |
|
for ( ; ; ) { |
854 |
< |
while (isspace(*cp)) cp++; |
855 |
< |
if (!*cp) break; |
856 |
< |
*wp++ = cp; |
857 |
< |
while (!isspace(*cp)) |
858 |
< |
if (!*cp++) goto done; |
859 |
< |
*cp++ = '\0'; |
854 |
> |
while (isspace(*cp)) /* nullify spaces */ |
855 |
> |
*cp++ = '\0'; |
856 |
> |
if (!*cp) /* all done? */ |
857 |
> |
break; |
858 |
> |
*wp++ = cp; /* add argument to list */ |
859 |
> |
while (*++cp && !isspace(*cp)) |
860 |
> |
; |
861 |
|
} |
721 |
– |
done: |
862 |
|
*wp = NULL; |
863 |
|
/* start process */ |
864 |
|
if ((rval = open_process(PDesc, argv)) < 0) |
865 |
< |
syserror(); |
865 |
> |
syserror(progname); |
866 |
|
if (rval == 0) { |
867 |
|
fprintf(stderr, "%s: command not found\n", argv[0]); |
868 |
|
exit(1); |
903 |
|
register float *fbp; |
904 |
|
register int i; |
905 |
|
|
906 |
+ |
if (queuesiz == 0) |
907 |
+ |
return; |
908 |
|
fbp = fbuf; |
909 |
|
for (i = 0; i < queuesiz; i++) { |
910 |
|
viewray(orig, dir, &ourview, |
938 |
|
} |
939 |
|
|
940 |
|
|
941 |
< |
syserror() /* report error and exit */ |
941 |
> |
syserror(s) /* report error and exit */ |
942 |
> |
char *s; |
943 |
|
{ |
944 |
< |
perror(progname); |
944 |
> |
perror(s); |
945 |
|
exit(1); |
946 |
|
} |