| 10 |
|
|
| 11 |
|
#include "standard.h" |
| 12 |
|
|
| 13 |
< |
#include <sys/fcntl.h> |
| 13 |
> |
#include <fcntl.h> |
| 14 |
|
|
| 15 |
|
#include "view.h" |
| 16 |
|
|
| 28 |
|
|
| 29 |
|
#define PACKSIZ 42 /* calculation packet size */ |
| 30 |
|
|
| 31 |
< |
#define RTCOM "rtrace -h -ovl -fff -x %d %s" |
| 31 |
> |
#define RTCOM "rtrace -h -ovl -fff %s" |
| 32 |
|
|
| 33 |
|
#define ABS(x) ((x)>0?(x):-(x)) |
| 34 |
|
|
| 46 |
|
|
| 47 |
|
char *progname; |
| 48 |
|
|
| 49 |
< |
int fill = F_FORE|F_BACK; /* selected fill algorithm */ |
| 49 |
> |
int fillo = F_FORE|F_BACK; /* selected fill options */ |
| 50 |
> |
int fillsamp = 0; /* sample separation (0 == inf) */ |
| 51 |
|
extern int backfill(), rcalfill(); /* fill functions */ |
| 52 |
< |
int (*deffill)() = backfill; /* selected fill function */ |
| 52 |
> |
int (*fillfunc)() = backfill; /* selected fill function */ |
| 53 |
|
COLR backcolr = BLKCOLR; /* background color */ |
| 54 |
|
double backz = 0.0; /* background z value */ |
| 55 |
|
int normdist = 1; /* normalized distance? */ |
| 57 |
|
|
| 58 |
|
VIEW theirview = STDVIEW; /* input view */ |
| 59 |
|
int gotview; /* got input view? */ |
| 60 |
+ |
int wrongformat = 0; /* input in another format? */ |
| 61 |
|
int thresolu, tvresolu; /* input resolution */ |
| 62 |
|
double theirexp; /* input picture exposure */ |
| 63 |
|
double theirs2ours[4][4]; /* transformation matrix */ |
| 64 |
+ |
int hasmatrix = 0; /* has transformation matrix */ |
| 65 |
|
|
| 66 |
|
int childpid = -1; /* id of fill process */ |
| 67 |
|
FILE *psend, *precv; /* pipes to/from fill calculation */ |
| 101 |
|
switch (argv[i][2]) { |
| 102 |
|
case '0': /* none */ |
| 103 |
|
check(3,0); |
| 104 |
< |
fill = 0; |
| 104 |
> |
fillo = 0; |
| 105 |
|
break; |
| 106 |
|
case 'f': /* foreground */ |
| 107 |
|
check(3,0); |
| 108 |
< |
fill = F_FORE; |
| 108 |
> |
fillo = F_FORE; |
| 109 |
|
break; |
| 110 |
|
case 'b': /* background */ |
| 111 |
|
check(3,0); |
| 112 |
< |
fill = F_BACK; |
| 112 |
> |
fillo = F_BACK; |
| 113 |
|
break; |
| 114 |
|
case 'a': /* all */ |
| 115 |
|
check(3,0); |
| 116 |
< |
fill = F_FORE|F_BACK; |
| 116 |
> |
fillo = F_FORE|F_BACK; |
| 117 |
|
break; |
| 118 |
+ |
case 's': /* sample */ |
| 119 |
+ |
check(3,1); |
| 120 |
+ |
fillsamp = atoi(argv[++i]); |
| 121 |
+ |
break; |
| 122 |
|
case 'c': /* color */ |
| 123 |
|
check(3,3); |
| 124 |
< |
deffill = backfill; |
| 124 |
> |
fillfunc = backfill; |
| 125 |
|
setcolr(backcolr, atof(argv[i+1]), |
| 126 |
|
atof(argv[i+2]), atof(argv[i+3])); |
| 127 |
|
i += 3; |
| 128 |
|
break; |
| 129 |
|
case 'z': /* z value */ |
| 130 |
|
check(3,1); |
| 131 |
< |
deffill = backfill; |
| 131 |
> |
fillfunc = backfill; |
| 132 |
|
backz = atof(argv[++i]); |
| 133 |
|
break; |
| 134 |
|
case 'r': /* rtrace */ |
| 135 |
|
check(3,1); |
| 136 |
< |
deffill = rcalfill; |
| 136 |
> |
fillfunc = rcalfill; |
| 137 |
|
calstart(RTCOM, argv[++i]); |
| 138 |
|
break; |
| 139 |
|
default: |
| 195 |
|
for ( ; i < argc; i += 2) |
| 196 |
|
addpicture(argv[i], argv[i+1]); |
| 197 |
|
/* fill in spaces */ |
| 198 |
< |
if (fill&F_BACK) |
| 199 |
< |
backpicture(); |
| 198 |
> |
if (fillo&F_BACK) |
| 199 |
> |
backpicture(fillfunc, fillsamp); |
| 200 |
|
else |
| 201 |
< |
fillpicture(); |
| 201 |
> |
fillpicture(fillfunc); |
| 202 |
|
/* close calculation */ |
| 203 |
|
caldone(); |
| 204 |
|
/* add to header */ |
| 205 |
|
printargs(argc, argv, stdout); |
| 206 |
|
if (gotvfile) { |
| 207 |
< |
printf(VIEWSTR); |
| 207 |
> |
fputs(VIEWSTR, stdout); |
| 208 |
|
fprintview(&ourview, stdout); |
| 209 |
< |
printf("\n"); |
| 209 |
> |
putc('\n', stdout); |
| 210 |
|
} |
| 211 |
|
if (pixaspect < .99 || pixaspect > 1.01) |
| 212 |
|
fputaspect(pixaspect, stdout); |
| 213 |
|
if (ourexp > 0 && (ourexp < .995 || ourexp > 1.005)) |
| 214 |
|
fputexpos(ourexp, stdout); |
| 215 |
< |
printf("\n"); |
| 215 |
> |
fputformat(COLRFMT, stdout); |
| 216 |
> |
putc('\n', stdout); |
| 217 |
|
/* write picture */ |
| 218 |
|
writepicture(); |
| 219 |
|
/* write z file */ |
| 233 |
|
headline(s) /* process header string */ |
| 234 |
|
char *s; |
| 235 |
|
{ |
| 236 |
< |
static char *altname[] = {"rview","rpict","pinterp",VIEWSTR,NULL}; |
| 236 |
> |
static char *altname[] = {VIEWSTR,"rpict","rview","pinterp",NULL}; |
| 237 |
|
register char **an; |
| 238 |
+ |
char fmt[32]; |
| 239 |
|
|
| 240 |
< |
printf("\t%s", s); |
| 240 |
> |
if (isformat(s)) { |
| 241 |
> |
formatval(fmt, s); |
| 242 |
> |
wrongformat = strcmp(fmt, COLRFMT); |
| 243 |
> |
return; |
| 244 |
> |
} |
| 245 |
> |
putc('\t', stdout); |
| 246 |
> |
fputs(s, stdout); |
| 247 |
|
|
| 248 |
|
if (isexpos(s)) { |
| 249 |
|
theirexp *= exposval(s); |
| 278 |
|
theirexp = 1.0; |
| 279 |
|
gotview = 0; |
| 280 |
|
printf("%s:\n", pfile); |
| 281 |
< |
getheader(pfp, headline); |
| 282 |
< |
if (!gotview || fgetresolu(&thresolu, &tvresolu, pfp) |
| 283 |
< |
!= (YMAJOR|YDECR)) { |
| 284 |
< |
fprintf(stderr, "%s: picture view error\n", pfile); |
| 281 |
> |
getheader(pfp, headline, NULL); |
| 282 |
> |
if (wrongformat || !gotview || |
| 283 |
> |
fgetresolu(&thresolu, &tvresolu, pfp) != (YMAJOR|YDECR)) { |
| 284 |
> |
|
| 285 |
> |
fprintf(stderr, "%s: picture format error\n", pfile); |
| 286 |
|
exit(1); |
| 287 |
|
} |
| 288 |
|
if (ourexp <= 0) |
| 294 |
|
exit(1); |
| 295 |
|
} |
| 296 |
|
/* compute transformation */ |
| 297 |
< |
pixform(theirs2ours, &theirview, &ourview); |
| 297 |
> |
hasmatrix = pixform(theirs2ours, &theirview, &ourview); |
| 298 |
|
/* allocate scanlines */ |
| 299 |
|
scanin = (COLR *)malloc(thresolu*sizeof(COLR)); |
| 300 |
|
zin = (float *)malloc(thresolu*sizeof(float)); |
| 341 |
|
{ |
| 342 |
|
double m4t[4][4]; |
| 343 |
|
|
| 344 |
+ |
if (vw1->type != VT_PER && vw1->type != VT_PAR) |
| 345 |
+ |
return(0); |
| 346 |
+ |
if (vw2->type != VT_PER && vw2->type != VT_PAR) |
| 347 |
+ |
return(0); |
| 348 |
|
setident4(xfmat); |
| 349 |
|
xfmat[0][0] = vw1->hvec[0]; |
| 350 |
|
xfmat[0][1] = vw1->hvec[1]; |
| 372 |
|
m4t[2][2] = vw2->vdir[2]; |
| 373 |
|
m4t[3][2] = -DOT(vw2->vp,vw2->vdir); |
| 374 |
|
multmat4(xfmat, xfmat, m4t); |
| 375 |
+ |
return(1); |
| 376 |
|
} |
| 377 |
|
|
| 378 |
|
|
| 383 |
|
struct position *lasty; /* input/output */ |
| 384 |
|
{ |
| 385 |
|
extern double sqrt(); |
| 386 |
< |
double pos[3]; |
| 386 |
> |
FVECT pos; |
| 387 |
|
struct position lastx, newpos; |
| 388 |
|
register int x; |
| 389 |
|
|
| 390 |
|
lastx.z = 0; |
| 391 |
|
for (x = thresolu-1; x >= 0; x--) { |
| 392 |
< |
pos[0] = (x+.5)/thresolu + theirview.hoff - .5; |
| 393 |
< |
pos[1] = (y+.5)/tvresolu + theirview.voff - .5; |
| 392 |
> |
pos[0] = (x+.5)/thresolu; |
| 393 |
> |
pos[1] = (y+.5)/tvresolu; |
| 394 |
|
pos[2] = zline[x]; |
| 395 |
< |
if (theirview.type == VT_PER) { |
| 375 |
< |
if (normdist) /* adjust for eye-ray distance */ |
| 376 |
< |
pos[2] /= sqrt( 1. |
| 377 |
< |
+ pos[0]*pos[0]*theirview.hn2 |
| 378 |
< |
+ pos[1]*pos[1]*theirview.vn2 ); |
| 379 |
< |
pos[0] *= pos[2]; |
| 380 |
< |
pos[1] *= pos[2]; |
| 381 |
< |
} |
| 382 |
< |
multp3(pos, pos, theirs2ours); |
| 383 |
< |
if (pos[2] <= 0) { |
| 395 |
> |
if (movepixel(pos) < 0) { |
| 396 |
|
lasty[x].z = lastx.z = 0; /* mark invalid */ |
| 397 |
|
continue; |
| 398 |
|
} |
| 387 |
– |
if (ourview.type == VT_PER) { |
| 388 |
– |
pos[0] /= pos[2]; |
| 389 |
– |
pos[1] /= pos[2]; |
| 390 |
– |
} |
| 391 |
– |
pos[0] += .5 - ourview.hoff; |
| 392 |
– |
pos[1] += .5 - ourview.voff; |
| 399 |
|
newpos.x = pos[0] * hresolu; |
| 400 |
|
newpos.y = pos[1] * vresolu; |
| 401 |
|
newpos.z = zline[x]; |
| 425 |
|
register int x, y; /* final position */ |
| 426 |
|
|
| 427 |
|
/* compute vector p0p1 */ |
| 428 |
< |
if (fill&F_FORE && ABS(p1->z-p0->z) <= zt) { |
| 428 |
> |
if (fillo&F_FORE && ABS(p1->z-p0->z) <= zt) { |
| 429 |
|
s1x = p1->x - p0->x; |
| 430 |
|
s1y = p1->y - p0->y; |
| 431 |
|
l1 = ABS(s1x); |
| 436 |
|
p1isy = -1; |
| 437 |
|
} |
| 438 |
|
/* compute vector p0p2 */ |
| 439 |
< |
if (fill&F_FORE && ABS(p2->z-p0->z) <= zt) { |
| 439 |
> |
if (fillo&F_FORE && ABS(p2->z-p0->z) <= zt) { |
| 440 |
|
s2x = p2->x - p0->x; |
| 441 |
|
s2y = p2->y - p0->y; |
| 442 |
|
if (p1isy == 1) |
| 454 |
|
y1 = p0->y + c1*s1y/l1; |
| 455 |
|
for (c2 = l2; c2-- > 0; ) { |
| 456 |
|
x = x1 + c2*s2x/l2; |
| 457 |
+ |
if (x < 0 || x >= hresolu) |
| 458 |
+ |
continue; |
| 459 |
|
y = y1 + c2*s2y/l2; |
| 460 |
+ |
if (y < 0 || y >= vresolu) |
| 461 |
+ |
continue; |
| 462 |
|
if (zscan(y)[x] <= 0 || zscan(y)[x]-z |
| 463 |
|
> zeps*zscan(y)[x]) { |
| 464 |
|
zscan(y)[x] = z; |
| 469 |
|
} |
| 470 |
|
|
| 471 |
|
|
| 472 |
< |
backpicture() /* background fill algorithm */ |
| 472 |
> |
movepixel(pos) /* reposition image point */ |
| 473 |
> |
FVECT pos; |
| 474 |
|
{ |
| 475 |
+ |
FVECT pt, direc; |
| 476 |
+ |
|
| 477 |
+ |
if (pos[2] <= 0) /* empty pixel */ |
| 478 |
+ |
return(-1); |
| 479 |
+ |
if (hasmatrix) { |
| 480 |
+ |
pos[0] += theirview.hoff - .5; |
| 481 |
+ |
pos[1] += theirview.voff - .5; |
| 482 |
+ |
if (theirview.type == VT_PER) { |
| 483 |
+ |
if (normdist) /* adjust for eye-ray distance */ |
| 484 |
+ |
pos[2] /= sqrt( 1. |
| 485 |
+ |
+ pos[0]*pos[0]*theirview.hn2 |
| 486 |
+ |
+ pos[1]*pos[1]*theirview.vn2 ); |
| 487 |
+ |
pos[0] *= pos[2]; |
| 488 |
+ |
pos[1] *= pos[2]; |
| 489 |
+ |
} |
| 490 |
+ |
multp3(pos, pos, theirs2ours); |
| 491 |
+ |
if (pos[2] <= 0) |
| 492 |
+ |
return(-1); |
| 493 |
+ |
if (ourview.type == VT_PER) { |
| 494 |
+ |
pos[0] /= pos[2]; |
| 495 |
+ |
pos[1] /= pos[2]; |
| 496 |
+ |
} |
| 497 |
+ |
pos[0] += .5 - ourview.hoff; |
| 498 |
+ |
pos[1] += .5 - ourview.voff; |
| 499 |
+ |
return(0); |
| 500 |
+ |
} |
| 501 |
+ |
if (viewray(pt, direc, &theirview, pos[0], pos[1]) < 0) |
| 502 |
+ |
return(-1); |
| 503 |
+ |
pt[0] += direc[0]*pos[2]; |
| 504 |
+ |
pt[1] += direc[1]*pos[2]; |
| 505 |
+ |
pt[2] += direc[2]*pos[2]; |
| 506 |
+ |
viewpixel(&pos[0], &pos[1], &pos[2], &ourview, pt); |
| 507 |
+ |
if (pos[2] <= 0) |
| 508 |
+ |
return(-1); |
| 509 |
+ |
return(0); |
| 510 |
+ |
} |
| 511 |
+ |
|
| 512 |
+ |
|
| 513 |
+ |
backpicture(fill, samp) /* background fill algorithm */ |
| 514 |
+ |
int (*fill)(); |
| 515 |
+ |
int samp; |
| 516 |
+ |
{ |
| 517 |
|
int *yback, xback; |
| 518 |
|
int y; |
| 466 |
– |
COLR pfill; |
| 519 |
|
register int x, i; |
| 520 |
|
/* get back buffer */ |
| 521 |
|
yback = (int *)malloc(hresolu*sizeof(int)); |
| 562 |
|
xback = x-1; |
| 563 |
|
} |
| 564 |
|
/* |
| 565 |
< |
* Check to see if we have no background for |
| 566 |
< |
* this pixel. If not, use background color. |
| 565 |
> |
* If we have no background for this pixel, |
| 566 |
> |
* use the given fill function. |
| 567 |
|
*/ |
| 568 |
< |
if (xback < 0 && yback[x] < 0) { |
| 569 |
< |
(*deffill)(x,y); |
| 518 |
< |
continue; |
| 519 |
< |
} |
| 568 |
> |
if (xback < 0 && yback[x] < 0) |
| 569 |
> |
goto fillit; |
| 570 |
|
/* |
| 571 |
|
* Compare, and use the background that is |
| 572 |
|
* farther, unless one of them is next to us. |
| 573 |
+ |
* If the background is too distant, call |
| 574 |
+ |
* the fill function. |
| 575 |
|
*/ |
| 576 |
|
if ( yback[x] < 0 |
| 577 |
|
|| (xback >= 0 && ABS(x-xback) <= 1) |
| 578 |
|
|| ( ABS(y-yback[x]) > 1 |
| 579 |
|
&& zscan(yback[x])[x] |
| 580 |
|
< zscan(y)[xback] ) ) { |
| 581 |
+ |
if (samp > 0 && ABS(x-xback) >= samp) |
| 582 |
+ |
goto fillit; |
| 583 |
|
copycolr(pscan(y)[x],pscan(y)[xback]); |
| 584 |
|
zscan(y)[x] = zscan(y)[xback]; |
| 585 |
|
} else { |
| 586 |
+ |
if (samp > 0 && ABS(y-yback[x]) > samp) |
| 587 |
+ |
goto fillit; |
| 588 |
|
copycolr(pscan(y)[x],pscan(yback[x])[x]); |
| 589 |
|
zscan(y)[x] = zscan(yback[x])[x]; |
| 590 |
|
} |
| 591 |
+ |
continue; |
| 592 |
+ |
fillit: |
| 593 |
+ |
(*fill)(x,y); |
| 594 |
+ |
if (fill == rcalfill) { /* use it */ |
| 595 |
+ |
clearqueue(); |
| 596 |
+ |
xback = x; |
| 597 |
+ |
yback[x] = y; |
| 598 |
+ |
} |
| 599 |
|
} else { /* full pixel */ |
| 600 |
|
yback[x] = -2; |
| 601 |
|
xback = -2; |
| 605 |
|
} |
| 606 |
|
|
| 607 |
|
|
| 608 |
< |
fillpicture() /* paint in empty pixels with default */ |
| 608 |
> |
fillpicture(fill) /* paint in empty pixels using fill */ |
| 609 |
> |
int (*fill)(); |
| 610 |
|
{ |
| 611 |
|
register int x, y; |
| 612 |
|
|
| 613 |
|
for (y = 0; y < vresolu; y++) |
| 614 |
|
for (x = 0; x < hresolu; x++) |
| 615 |
|
if (zscan(y)[x] <= 0) |
| 616 |
< |
(*deffill)(x,y); |
| 616 |
> |
(*fill)(x,y); |
| 617 |
|
} |
| 618 |
|
|
| 619 |
|
|
| 648 |
|
if (donorm) { |
| 649 |
|
double vx, yzn2; |
| 650 |
|
register int x; |
| 651 |
< |
yzn2 = y - .5*(vresolu-1); |
| 651 |
> |
yzn2 = (y+.5)/vresolu + ourview.voff - .5; |
| 652 |
|
yzn2 = 1. + yzn2*yzn2*ourview.vn2; |
| 653 |
|
for (x = 0; x < hresolu; x++) { |
| 654 |
< |
vx = x - .5*(hresolu-1); |
| 654 |
> |
vx = (x+.5)/hresolu + ourview.hoff - .5; |
| 655 |
|
zout[x] = zscan(y)[x] |
| 656 |
|
* sqrt(vx*vx*ourview.hn2 + yzn2); |
| 657 |
|
} |
| 700 |
|
fprintf(stderr, "%s: too many calculations\n", progname); |
| 701 |
|
exit(1); |
| 702 |
|
} |
| 703 |
< |
sprintf(combuf, prog, PACKSIZ, args); |
| 703 |
> |
sprintf(combuf, prog, args); |
| 704 |
|
if (pipe(p0) < 0 || pipe(p1) < 0) |
| 705 |
|
syserror(); |
| 706 |
|
if ((childpid = vfork()) == 0) { /* fork calculation */ |
| 736 |
|
|
| 737 |
|
if (childpid == -1) |
| 738 |
|
return; |
| 739 |
< |
clearqueue(1); |
| 739 |
> |
clearqueue(); |
| 740 |
> |
fclose(psend); |
| 741 |
> |
fclose(precv); |
| 742 |
|
while ((pid = wait(0)) != -1 && pid != childpid) |
| 743 |
|
; |
| 744 |
|
childpid = -1; |
| 749 |
|
int x, y; |
| 750 |
|
{ |
| 751 |
|
if (queuesiz >= PACKSIZ) /* flush queue if needed */ |
| 752 |
< |
clearqueue(0); |
| 752 |
> |
clearqueue(); |
| 753 |
|
/* add position to queue */ |
| 754 |
|
queue[queuesiz][0] = x; |
| 755 |
|
queue[queuesiz][1] = y; |
| 757 |
|
} |
| 758 |
|
|
| 759 |
|
|
| 760 |
< |
clearqueue(done) /* process queue */ |
| 694 |
< |
int done; |
| 760 |
> |
clearqueue() /* process queue */ |
| 761 |
|
{ |
| 762 |
|
FVECT orig, dir; |
| 763 |
|
float fbuf[6]; |
| 771 |
|
fbuf[3] = dir[0]; fbuf[4] = dir[1]; fbuf[5] = dir[2]; |
| 772 |
|
fwrite((char *)fbuf, sizeof(float), 6, psend); |
| 773 |
|
} |
| 774 |
< |
if ((done ? fclose(psend) : fflush(psend)) == EOF) |
| 774 |
> |
/* flush output and get results */ |
| 775 |
> |
fbuf[3] = fbuf[4] = fbuf[5] = 0.0; /* mark */ |
| 776 |
> |
fwrite((char *)fbuf, sizeof(float), 6, psend); |
| 777 |
> |
if (fflush(psend) == EOF) |
| 778 |
|
syserror(); |
| 779 |
|
for (i = 0; i < queuesiz; i++) { |
| 780 |
|
if (fread((char *)fbuf, sizeof(float), 4, precv) < 4) { |
| 791 |
|
fbuf[0], fbuf[1], fbuf[2]); |
| 792 |
|
zscan(queue[i][1])[queue[i][0]] = fbuf[3]; |
| 793 |
|
} |
| 725 |
– |
if (done) |
| 726 |
– |
fclose(precv); |
| 794 |
|
queuesiz = 0; |
| 795 |
|
} |
| 796 |
|
|