| 1 |
+ |
/* Copyright (c) 1991 Regents of the University of California */ |
| 2 |
+ |
|
| 3 |
|
#ifndef lint |
| 4 |
|
static char SCCSid[] = "$SunId$ LBL"; |
| 5 |
|
#endif |
| 12 |
|
|
| 13 |
|
#include "standard.h" |
| 14 |
|
|
| 15 |
< |
#include <sys/fcntl.h> |
| 15 |
> |
#include <fcntl.h> |
| 16 |
|
|
| 17 |
+ |
#include <ctype.h> |
| 18 |
+ |
|
| 19 |
|
#include "view.h" |
| 20 |
|
|
| 21 |
|
#include "color.h" |
| 22 |
|
|
| 23 |
+ |
#include "resolu.h" |
| 24 |
+ |
|
| 25 |
|
#ifndef BSD |
| 26 |
|
#define vfork fork |
| 27 |
|
#endif |
| 32 |
|
#define F_FORE 1 /* fill foreground */ |
| 33 |
|
#define F_BACK 2 /* fill background */ |
| 34 |
|
|
| 35 |
< |
#define PACKSIZ 42 /* calculation packet size */ |
| 35 |
> |
#define PACKSIZ 256 /* max. calculation packet size */ |
| 36 |
|
|
| 37 |
< |
#define RTCOM "rtrace -h -ovl -fff -x %d %s" |
| 37 |
> |
#define RTCOM "rtrace -h- -ovl -fff " |
| 38 |
|
|
| 39 |
|
#define ABS(x) ((x)>0?(x):-(x)) |
| 40 |
|
|
| 52 |
|
|
| 53 |
|
char *progname; |
| 54 |
|
|
| 55 |
< |
int fill = F_FORE|F_BACK; /* selected fill algorithm */ |
| 55 |
> |
int fillo = F_FORE|F_BACK; /* selected fill options */ |
| 56 |
> |
int fillsamp = 0; /* sample separation (0 == inf) */ |
| 57 |
|
extern int backfill(), rcalfill(); /* fill functions */ |
| 58 |
< |
int (*deffill)() = backfill; /* selected fill function */ |
| 58 |
> |
int (*fillfunc)() = backfill; /* selected fill function */ |
| 59 |
|
COLR backcolr = BLKCOLR; /* background color */ |
| 60 |
|
double backz = 0.0; /* background z value */ |
| 61 |
|
int normdist = 1; /* normalized distance? */ |
| 63 |
|
|
| 64 |
|
VIEW theirview = STDVIEW; /* input view */ |
| 65 |
|
int gotview; /* got input view? */ |
| 66 |
< |
int thresolu, tvresolu; /* input resolution */ |
| 66 |
> |
int wrongformat = 0; /* input in another format? */ |
| 67 |
> |
RESOLU tresolu; /* input resolution */ |
| 68 |
|
double theirexp; /* input picture exposure */ |
| 69 |
|
double theirs2ours[4][4]; /* transformation matrix */ |
| 70 |
+ |
int hasmatrix = 0; /* has transformation matrix */ |
| 71 |
|
|
| 72 |
< |
int childpid = -1; /* id of fill process */ |
| 73 |
< |
FILE *psend, *precv; /* pipes to/from fill calculation */ |
| 74 |
< |
int queue[PACKSIZ][2]; /* pending pixels */ |
| 72 |
> |
int PDesc[3] = {-1,-1,-1}; /* rtrace process descriptor */ |
| 73 |
> |
#define childpid (PDesc[2]) |
| 74 |
> |
unsigned short queue[PACKSIZ][2]; /* pending pixels */ |
| 75 |
> |
int packsiz; /* actual packet size */ |
| 76 |
|
int queuesiz; /* number of pixels pending */ |
| 77 |
|
|
| 78 |
|
|
| 80 |
|
int argc; |
| 81 |
|
char *argv[]; |
| 82 |
|
{ |
| 83 |
< |
#define check(olen,narg) if (argv[i][olen] || narg >= argc-i) goto badopt |
| 84 |
< |
extern double atof(); |
| 83 |
> |
#define check(ol,al) if (argv[i][ol] || \ |
| 84 |
> |
badarg(argc-i-1,argv+i+1,al)) \ |
| 85 |
> |
goto badopt |
| 86 |
|
int gotvfile = 0; |
| 87 |
|
char *zfile = NULL; |
| 88 |
|
char *err; |
| 98 |
|
} |
| 99 |
|
switch (argv[i][1]) { |
| 100 |
|
case 't': /* threshold */ |
| 101 |
< |
check(2,1); |
| 101 |
> |
check(2,"f"); |
| 102 |
|
zeps = atof(argv[++i]); |
| 103 |
|
break; |
| 104 |
|
case 'n': /* dist. normalized? */ |
| 105 |
< |
check(2,0); |
| 105 |
> |
check(2,NULL); |
| 106 |
|
normdist = !normdist; |
| 107 |
|
break; |
| 108 |
|
case 'f': /* fill type */ |
| 109 |
|
switch (argv[i][2]) { |
| 110 |
|
case '0': /* none */ |
| 111 |
< |
check(3,0); |
| 112 |
< |
fill = 0; |
| 111 |
> |
check(3,NULL); |
| 112 |
> |
fillo = 0; |
| 113 |
|
break; |
| 114 |
|
case 'f': /* foreground */ |
| 115 |
< |
check(3,0); |
| 116 |
< |
fill = F_FORE; |
| 115 |
> |
check(3,NULL); |
| 116 |
> |
fillo = F_FORE; |
| 117 |
|
break; |
| 118 |
|
case 'b': /* background */ |
| 119 |
< |
check(3,0); |
| 120 |
< |
fill = F_BACK; |
| 119 |
> |
check(3,NULL); |
| 120 |
> |
fillo = F_BACK; |
| 121 |
|
break; |
| 122 |
|
case 'a': /* all */ |
| 123 |
< |
check(3,0); |
| 124 |
< |
fill = F_FORE|F_BACK; |
| 123 |
> |
check(3,NULL); |
| 124 |
> |
fillo = F_FORE|F_BACK; |
| 125 |
|
break; |
| 126 |
+ |
case 's': /* sample */ |
| 127 |
+ |
check(3,"i"); |
| 128 |
+ |
fillsamp = atoi(argv[++i]); |
| 129 |
+ |
break; |
| 130 |
|
case 'c': /* color */ |
| 131 |
< |
check(3,3); |
| 132 |
< |
deffill = backfill; |
| 131 |
> |
check(3,"fff"); |
| 132 |
> |
fillfunc = backfill; |
| 133 |
|
setcolr(backcolr, atof(argv[i+1]), |
| 134 |
|
atof(argv[i+2]), atof(argv[i+3])); |
| 135 |
|
i += 3; |
| 136 |
|
break; |
| 137 |
|
case 'z': /* z value */ |
| 138 |
< |
check(3,1); |
| 139 |
< |
deffill = backfill; |
| 138 |
> |
check(3,"f"); |
| 139 |
> |
fillfunc = backfill; |
| 140 |
|
backz = atof(argv[++i]); |
| 141 |
|
break; |
| 142 |
|
case 'r': /* rtrace */ |
| 143 |
< |
check(3,1); |
| 144 |
< |
deffill = rcalfill; |
| 143 |
> |
check(3,"s"); |
| 144 |
> |
fillfunc = rcalfill; |
| 145 |
|
calstart(RTCOM, argv[++i]); |
| 146 |
|
break; |
| 147 |
|
default: |
| 149 |
|
} |
| 150 |
|
break; |
| 151 |
|
case 'z': /* z file */ |
| 152 |
< |
check(2,1); |
| 152 |
> |
check(2,"s"); |
| 153 |
|
zfile = argv[++i]; |
| 154 |
|
break; |
| 155 |
|
case 'x': /* x resolution */ |
| 156 |
< |
check(2,1); |
| 156 |
> |
check(2,"i"); |
| 157 |
|
hresolu = atoi(argv[++i]); |
| 158 |
|
break; |
| 159 |
|
case 'y': /* y resolution */ |
| 160 |
< |
check(2,1); |
| 160 |
> |
check(2,"i"); |
| 161 |
|
vresolu = atoi(argv[++i]); |
| 162 |
|
break; |
| 163 |
|
case 'p': /* pixel aspect */ |
| 164 |
< |
check(2,1); |
| 164 |
> |
check(2,"f"); |
| 165 |
|
pixaspect = atof(argv[++i]); |
| 166 |
|
break; |
| 167 |
|
case 'v': /* view file */ |
| 168 |
|
if (argv[i][2] != 'f') |
| 169 |
|
goto badopt; |
| 170 |
< |
check(3,1); |
| 170 |
> |
check(3,"s"); |
| 171 |
|
gotvfile = viewfile(argv[++i], &ourview, 0, 0); |
| 172 |
|
if (gotvfile < 0) { |
| 173 |
|
perror(argv[i]); |
| 188 |
|
/* check arguments */ |
| 189 |
|
if ((argc-i)%2) |
| 190 |
|
goto userr; |
| 191 |
+ |
if (fillsamp == 1) |
| 192 |
+ |
fillo &= ~F_BACK; |
| 193 |
|
/* set view */ |
| 194 |
|
if (err = setview(&ourview)) { |
| 195 |
|
fprintf(stderr, "%s: %s\n", progname, err); |
| 205 |
|
for ( ; i < argc; i += 2) |
| 206 |
|
addpicture(argv[i], argv[i+1]); |
| 207 |
|
/* fill in spaces */ |
| 208 |
< |
if (fill&F_BACK) |
| 209 |
< |
backpicture(); |
| 208 |
> |
if (fillo&F_BACK) |
| 209 |
> |
backpicture(fillfunc, fillsamp); |
| 210 |
|
else |
| 211 |
< |
fillpicture(); |
| 211 |
> |
fillpicture(fillfunc); |
| 212 |
|
/* close calculation */ |
| 213 |
|
caldone(); |
| 214 |
|
/* add to header */ |
| 215 |
|
printargs(argc, argv, stdout); |
| 216 |
|
if (gotvfile) { |
| 217 |
< |
printf(VIEWSTR); |
| 217 |
> |
fputs(VIEWSTR, stdout); |
| 218 |
|
fprintview(&ourview, stdout); |
| 219 |
< |
printf("\n"); |
| 219 |
> |
putc('\n', stdout); |
| 220 |
|
} |
| 221 |
|
if (pixaspect < .99 || pixaspect > 1.01) |
| 222 |
|
fputaspect(pixaspect, stdout); |
| 223 |
|
if (ourexp > 0 && (ourexp < .995 || ourexp > 1.005)) |
| 224 |
|
fputexpos(ourexp, stdout); |
| 225 |
< |
printf("\n"); |
| 225 |
> |
fputformat(COLRFMT, stdout); |
| 226 |
> |
putc('\n', stdout); |
| 227 |
|
/* write picture */ |
| 228 |
|
writepicture(); |
| 229 |
|
/* write z file */ |
| 243 |
|
headline(s) /* process header string */ |
| 244 |
|
char *s; |
| 245 |
|
{ |
| 246 |
< |
static char *altname[] = {"rview","rpict","pinterp",VIEWSTR,NULL}; |
| 246 |
> |
static char *altname[] = {VIEWSTR,"rpict","rview","pinterp",NULL}; |
| 247 |
|
register char **an; |
| 248 |
+ |
char fmt[32]; |
| 249 |
|
|
| 250 |
< |
printf("\t%s", s); |
| 250 |
> |
if (isformat(s)) { |
| 251 |
> |
formatval(fmt, s); |
| 252 |
> |
wrongformat = strcmp(fmt, COLRFMT); |
| 253 |
> |
return; |
| 254 |
> |
} |
| 255 |
> |
putc('\t', stdout); |
| 256 |
> |
fputs(s, stdout); |
| 257 |
|
|
| 258 |
|
if (isexpos(s)) { |
| 259 |
|
theirexp *= exposval(s); |
| 271 |
|
addpicture(pfile, zspec) /* add picture to output */ |
| 272 |
|
char *pfile, *zspec; |
| 273 |
|
{ |
| 249 |
– |
extern double atof(); |
| 274 |
|
FILE *pfp; |
| 275 |
|
int zfd; |
| 276 |
|
char *err; |
| 287 |
|
theirexp = 1.0; |
| 288 |
|
gotview = 0; |
| 289 |
|
printf("%s:\n", pfile); |
| 290 |
< |
getheader(pfp, headline); |
| 291 |
< |
if (!gotview || fgetresolu(&thresolu, &tvresolu, pfp) |
| 292 |
< |
!= (YMAJOR|YDECR)) { |
| 269 |
< |
fprintf(stderr, "%s: picture view error\n", pfile); |
| 290 |
> |
getheader(pfp, headline, NULL); |
| 291 |
> |
if (wrongformat || !gotview || !fgetsresolu(&tresolu, pfp)) { |
| 292 |
> |
fprintf(stderr, "%s: picture format error\n", pfile); |
| 293 |
|
exit(1); |
| 294 |
|
} |
| 295 |
|
if (ourexp <= 0) |
| 301 |
|
exit(1); |
| 302 |
|
} |
| 303 |
|
/* compute transformation */ |
| 304 |
< |
pixform(theirs2ours, &theirview, &ourview); |
| 304 |
> |
hasmatrix = pixform(theirs2ours, &theirview, &ourview); |
| 305 |
|
/* allocate scanlines */ |
| 306 |
< |
scanin = (COLR *)malloc(thresolu*sizeof(COLR)); |
| 307 |
< |
zin = (float *)malloc(thresolu*sizeof(float)); |
| 308 |
< |
plast = (struct position *)calloc(thresolu, sizeof(struct position)); |
| 306 |
> |
scanin = (COLR *)malloc(scanlen(&tresolu)*sizeof(COLR)); |
| 307 |
> |
zin = (float *)malloc(scanlen(&tresolu)*sizeof(float)); |
| 308 |
> |
plast = (struct position *)calloc(scanlen(&tresolu), |
| 309 |
> |
sizeof(struct position)); |
| 310 |
|
if (scanin == NULL || zin == NULL || plast == NULL) |
| 311 |
|
syserror(); |
| 312 |
|
/* get z specification or file */ |
| 317 |
|
perror(zspec); |
| 318 |
|
exit(1); |
| 319 |
|
} |
| 320 |
< |
for (x = 0; x < thresolu; x++) |
| 320 |
> |
for (x = scanlen(&tresolu); x-- > 0; ) |
| 321 |
|
zin[x] = zvalue; |
| 322 |
|
} |
| 323 |
|
/* load image */ |
| 324 |
< |
for (y = tvresolu-1; y >= 0; y--) { |
| 325 |
< |
if (freadcolrs(scanin, thresolu, pfp) < 0) { |
| 324 |
> |
for (y = 0; y < numscans(&tresolu); y++) { |
| 325 |
> |
if (freadcolrs(scanin, scanlen(&tresolu), pfp) < 0) { |
| 326 |
|
fprintf(stderr, "%s: read error\n", pfile); |
| 327 |
|
exit(1); |
| 328 |
|
} |
| 329 |
< |
if (zfd != -1 && read(zfd,zin,thresolu*sizeof(float)) |
| 330 |
< |
< thresolu*sizeof(float)) { |
| 329 |
> |
if (zfd != -1 && read(zfd,(char *)zin, |
| 330 |
> |
scanlen(&tresolu)*sizeof(float)) |
| 331 |
> |
< scanlen(&tresolu)*sizeof(float)) { |
| 332 |
|
fprintf(stderr, "%s: read error\n", zspec); |
| 333 |
|
exit(1); |
| 334 |
|
} |
| 350 |
|
{ |
| 351 |
|
double m4t[4][4]; |
| 352 |
|
|
| 353 |
+ |
if (vw1->type != VT_PER && vw1->type != VT_PAR) |
| 354 |
+ |
return(0); |
| 355 |
+ |
if (vw2->type != VT_PER && vw2->type != VT_PAR) |
| 356 |
+ |
return(0); |
| 357 |
|
setident4(xfmat); |
| 358 |
|
xfmat[0][0] = vw1->hvec[0]; |
| 359 |
|
xfmat[0][1] = vw1->hvec[1]; |
| 381 |
|
m4t[2][2] = vw2->vdir[2]; |
| 382 |
|
m4t[3][2] = -DOT(vw2->vp,vw2->vdir); |
| 383 |
|
multmat4(xfmat, xfmat, m4t); |
| 384 |
+ |
return(1); |
| 385 |
|
} |
| 386 |
|
|
| 387 |
|
|
| 392 |
|
struct position *lasty; /* input/output */ |
| 393 |
|
{ |
| 394 |
|
extern double sqrt(); |
| 395 |
< |
double pos[3]; |
| 395 |
> |
FVECT pos; |
| 396 |
|
struct position lastx, newpos; |
| 397 |
|
register int x; |
| 398 |
|
|
| 399 |
|
lastx.z = 0; |
| 400 |
< |
for (x = thresolu-1; x >= 0; x--) { |
| 401 |
< |
pos[0] = (x+.5)/thresolu + theirview.hoff - .5; |
| 372 |
< |
pos[1] = (y+.5)/tvresolu + theirview.voff - .5; |
| 400 |
> |
for (x = scanlen(&tresolu); x-- > 0; ) { |
| 401 |
> |
pix2loc(pos, &tresolu, x, y); |
| 402 |
|
pos[2] = zline[x]; |
| 403 |
< |
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) { |
| 403 |
> |
if (movepixel(pos) < 0) { |
| 404 |
|
lasty[x].z = lastx.z = 0; /* mark invalid */ |
| 405 |
|
continue; |
| 406 |
|
} |
| 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; |
| 407 |
|
newpos.x = pos[0] * hresolu; |
| 408 |
|
newpos.y = pos[1] * vresolu; |
| 409 |
|
newpos.z = zline[x]; |
| 433 |
|
register int x, y; /* final position */ |
| 434 |
|
|
| 435 |
|
/* compute vector p0p1 */ |
| 436 |
< |
if (fill&F_FORE && ABS(p1->z-p0->z) <= zt) { |
| 436 |
> |
if (fillo&F_FORE && ABS(p1->z-p0->z) <= zt) { |
| 437 |
|
s1x = p1->x - p0->x; |
| 438 |
|
s1y = p1->y - p0->y; |
| 439 |
|
l1 = ABS(s1x); |
| 444 |
|
p1isy = -1; |
| 445 |
|
} |
| 446 |
|
/* compute vector p0p2 */ |
| 447 |
< |
if (fill&F_FORE && ABS(p2->z-p0->z) <= zt) { |
| 447 |
> |
if (fillo&F_FORE && ABS(p2->z-p0->z) <= zt) { |
| 448 |
|
s2x = p2->x - p0->x; |
| 449 |
|
s2y = p2->y - p0->y; |
| 450 |
|
if (p1isy == 1) |
| 462 |
|
y1 = p0->y + c1*s1y/l1; |
| 463 |
|
for (c2 = l2; c2-- > 0; ) { |
| 464 |
|
x = x1 + c2*s2x/l2; |
| 465 |
+ |
if (x < 0 || x >= hresolu) |
| 466 |
+ |
continue; |
| 467 |
|
y = y1 + c2*s2y/l2; |
| 468 |
+ |
if (y < 0 || y >= vresolu) |
| 469 |
+ |
continue; |
| 470 |
|
if (zscan(y)[x] <= 0 || zscan(y)[x]-z |
| 471 |
|
> zeps*zscan(y)[x]) { |
| 472 |
|
zscan(y)[x] = z; |
| 477 |
|
} |
| 478 |
|
|
| 479 |
|
|
| 480 |
< |
backpicture() /* background fill algorithm */ |
| 480 |
> |
movepixel(pos) /* reposition image point */ |
| 481 |
> |
FVECT pos; |
| 482 |
|
{ |
| 483 |
+ |
FVECT pt, direc; |
| 484 |
+ |
|
| 485 |
+ |
if (pos[2] <= 0) /* empty pixel */ |
| 486 |
+ |
return(-1); |
| 487 |
+ |
if (hasmatrix) { |
| 488 |
+ |
pos[0] += theirview.hoff - .5; |
| 489 |
+ |
pos[1] += theirview.voff - .5; |
| 490 |
+ |
if (theirview.type == VT_PER) { |
| 491 |
+ |
if (normdist) /* adjust for eye-ray distance */ |
| 492 |
+ |
pos[2] /= sqrt( 1. |
| 493 |
+ |
+ pos[0]*pos[0]*theirview.hn2 |
| 494 |
+ |
+ pos[1]*pos[1]*theirview.vn2 ); |
| 495 |
+ |
pos[0] *= pos[2]; |
| 496 |
+ |
pos[1] *= pos[2]; |
| 497 |
+ |
} |
| 498 |
+ |
multp3(pos, pos, theirs2ours); |
| 499 |
+ |
if (pos[2] <= 0) |
| 500 |
+ |
return(-1); |
| 501 |
+ |
if (ourview.type == VT_PER) { |
| 502 |
+ |
pos[0] /= pos[2]; |
| 503 |
+ |
pos[1] /= pos[2]; |
| 504 |
+ |
} |
| 505 |
+ |
pos[0] += .5 - ourview.hoff; |
| 506 |
+ |
pos[1] += .5 - ourview.voff; |
| 507 |
+ |
return(0); |
| 508 |
+ |
} |
| 509 |
+ |
if (viewray(pt, direc, &theirview, pos[0], pos[1]) < 0) |
| 510 |
+ |
return(-1); |
| 511 |
+ |
pt[0] += direc[0]*pos[2]; |
| 512 |
+ |
pt[1] += direc[1]*pos[2]; |
| 513 |
+ |
pt[2] += direc[2]*pos[2]; |
| 514 |
+ |
viewloc(pos, &ourview, pt); |
| 515 |
+ |
if (pos[2] <= 0) |
| 516 |
+ |
return(-1); |
| 517 |
+ |
return(0); |
| 518 |
+ |
} |
| 519 |
+ |
|
| 520 |
+ |
|
| 521 |
+ |
backpicture(fill, samp) /* background fill algorithm */ |
| 522 |
+ |
int (*fill)(); |
| 523 |
+ |
int samp; |
| 524 |
+ |
{ |
| 525 |
|
int *yback, xback; |
| 526 |
|
int y; |
| 466 |
– |
COLR pfill; |
| 527 |
|
register int x, i; |
| 528 |
|
/* get back buffer */ |
| 529 |
|
yback = (int *)malloc(hresolu*sizeof(int)); |
| 570 |
|
xback = x-1; |
| 571 |
|
} |
| 572 |
|
/* |
| 573 |
< |
* Check to see if we have no background for |
| 574 |
< |
* this pixel. If not, use background color. |
| 573 |
> |
* If we have no background for this pixel, |
| 574 |
> |
* use the given fill function. |
| 575 |
|
*/ |
| 576 |
< |
if (xback < 0 && yback[x] < 0) { |
| 577 |
< |
(*deffill)(x,y); |
| 518 |
< |
continue; |
| 519 |
< |
} |
| 576 |
> |
if (xback < 0 && yback[x] < 0) |
| 577 |
> |
goto fillit; |
| 578 |
|
/* |
| 579 |
|
* Compare, and use the background that is |
| 580 |
|
* farther, unless one of them is next to us. |
| 581 |
+ |
* If the background is too distant, call |
| 582 |
+ |
* the fill function. |
| 583 |
|
*/ |
| 584 |
|
if ( yback[x] < 0 |
| 585 |
|
|| (xback >= 0 && ABS(x-xback) <= 1) |
| 586 |
|
|| ( ABS(y-yback[x]) > 1 |
| 587 |
|
&& zscan(yback[x])[x] |
| 588 |
|
< zscan(y)[xback] ) ) { |
| 589 |
+ |
if (samp > 0 && ABS(x-xback) >= samp) |
| 590 |
+ |
goto fillit; |
| 591 |
|
copycolr(pscan(y)[x],pscan(y)[xback]); |
| 592 |
|
zscan(y)[x] = zscan(y)[xback]; |
| 593 |
|
} else { |
| 594 |
+ |
if (samp > 0 && ABS(y-yback[x]) > samp) |
| 595 |
+ |
goto fillit; |
| 596 |
|
copycolr(pscan(y)[x],pscan(yback[x])[x]); |
| 597 |
|
zscan(y)[x] = zscan(yback[x])[x]; |
| 598 |
|
} |
| 599 |
+ |
continue; |
| 600 |
+ |
fillit: |
| 601 |
+ |
(*fill)(x,y); |
| 602 |
+ |
if (fill == rcalfill) { /* use it */ |
| 603 |
+ |
clearqueue(); |
| 604 |
+ |
xback = x; |
| 605 |
+ |
yback[x] = y; |
| 606 |
+ |
} |
| 607 |
|
} else { /* full pixel */ |
| 608 |
|
yback[x] = -2; |
| 609 |
|
xback = -2; |
| 613 |
|
} |
| 614 |
|
|
| 615 |
|
|
| 616 |
< |
fillpicture() /* paint in empty pixels with default */ |
| 616 |
> |
fillpicture(fill) /* paint in empty pixels using fill */ |
| 617 |
> |
int (*fill)(); |
| 618 |
|
{ |
| 619 |
|
register int x, y; |
| 620 |
|
|
| 621 |
|
for (y = 0; y < vresolu; y++) |
| 622 |
|
for (x = 0; x < hresolu; x++) |
| 623 |
|
if (zscan(y)[x] <= 0) |
| 624 |
< |
(*deffill)(x,y); |
| 624 |
> |
(*fill)(x,y); |
| 625 |
|
} |
| 626 |
|
|
| 627 |
|
|
| 629 |
|
{ |
| 630 |
|
int y; |
| 631 |
|
|
| 632 |
< |
fputresolu(YMAJOR|YDECR, hresolu, vresolu, stdout); |
| 632 |
> |
fprtresolu(hresolu, vresolu, stdout); |
| 633 |
|
for (y = vresolu-1; y >= 0; y--) |
| 634 |
|
if (fwritecolrs(pscan(y), hresolu, stdout) < 0) |
| 635 |
|
syserror(); |
| 656 |
|
if (donorm) { |
| 657 |
|
double vx, yzn2; |
| 658 |
|
register int x; |
| 659 |
< |
yzn2 = y - .5*(vresolu-1); |
| 659 |
> |
yzn2 = (y+.5)/vresolu + ourview.voff - .5; |
| 660 |
|
yzn2 = 1. + yzn2*yzn2*ourview.vn2; |
| 661 |
|
for (x = 0; x < hresolu; x++) { |
| 662 |
< |
vx = x - .5*(hresolu-1); |
| 662 |
> |
vx = (x+.5)/hresolu + ourview.hoff - .5; |
| 663 |
|
zout[x] = zscan(y)[x] |
| 664 |
|
* sqrt(vx*vx*ourview.hn2 + yzn2); |
| 665 |
|
} |
| 666 |
|
} else |
| 667 |
|
zout = zscan(y); |
| 668 |
< |
if (write(fd, zout, hresolu*sizeof(float)) |
| 668 |
> |
if (write(fd, (char *)zout, hresolu*sizeof(float)) |
| 669 |
|
< hresolu*sizeof(float)) { |
| 670 |
|
perror(fname); |
| 671 |
|
exit(1); |
| 698 |
|
} |
| 699 |
|
|
| 700 |
|
|
| 701 |
< |
calstart(prog, args) /* start fill calculation */ |
| 701 |
> |
calstart(prog, args) /* start fill calculation */ |
| 702 |
|
char *prog, *args; |
| 703 |
|
{ |
| 704 |
|
char combuf[512]; |
| 705 |
< |
int p0[2], p1[2]; |
| 705 |
> |
char *argv[64]; |
| 706 |
> |
int rval; |
| 707 |
> |
register char **wp, *cp; |
| 708 |
|
|
| 709 |
|
if (childpid != -1) { |
| 710 |
|
fprintf(stderr, "%s: too many calculations\n", progname); |
| 711 |
|
exit(1); |
| 712 |
|
} |
| 713 |
< |
sprintf(combuf, prog, PACKSIZ, args); |
| 714 |
< |
if (pipe(p0) < 0 || pipe(p1) < 0) |
| 715 |
< |
syserror(); |
| 716 |
< |
if ((childpid = vfork()) == 0) { /* fork calculation */ |
| 717 |
< |
close(p0[1]); |
| 718 |
< |
close(p1[0]); |
| 719 |
< |
if (p0[0] != 0) { |
| 720 |
< |
dup2(p0[0], 0); |
| 721 |
< |
close(p0[0]); |
| 722 |
< |
} |
| 723 |
< |
if (p1[1] != 1) { |
| 649 |
< |
dup2(p1[1], 1); |
| 650 |
< |
close(p1[1]); |
| 651 |
< |
} |
| 652 |
< |
execl("/bin/sh", "sh", "-c", combuf, 0); |
| 653 |
< |
perror("/bin/sh"); |
| 654 |
< |
_exit(127); |
| 713 |
> |
strcpy(combuf, prog); |
| 714 |
> |
strcat(combuf, args); |
| 715 |
> |
cp = combuf; |
| 716 |
> |
wp = argv; |
| 717 |
> |
for ( ; ; ) { |
| 718 |
> |
while (isspace(*cp)) cp++; |
| 719 |
> |
if (!*cp) break; |
| 720 |
> |
*wp++ = cp; |
| 721 |
> |
while (!isspace(*cp)) |
| 722 |
> |
if (!*cp++) goto done; |
| 723 |
> |
*cp++ = '\0'; |
| 724 |
|
} |
| 725 |
< |
if (childpid == -1) |
| 725 |
> |
done: |
| 726 |
> |
*wp = NULL; |
| 727 |
> |
/* start process */ |
| 728 |
> |
if ((rval = open_process(PDesc, argv)) < 0) |
| 729 |
|
syserror(); |
| 730 |
< |
close(p0[0]); |
| 731 |
< |
close(p1[1]); |
| 732 |
< |
if ((psend = fdopen(p0[1], "w")) == NULL) |
| 733 |
< |
syserror(); |
| 734 |
< |
if ((precv = fdopen(p1[0], "r")) == NULL) |
| 735 |
< |
syserror(); |
| 730 |
> |
if (rval == 0) { |
| 731 |
> |
fprintf(stderr, "%s: command not found\n", argv[0]); |
| 732 |
> |
exit(1); |
| 733 |
> |
} |
| 734 |
> |
packsiz = rval/(6*sizeof(float)) - 1; |
| 735 |
> |
if (packsiz > PACKSIZ) |
| 736 |
> |
packsiz = PACKSIZ; |
| 737 |
|
queuesiz = 0; |
| 738 |
|
} |
| 739 |
|
|
| 740 |
|
|
| 741 |
< |
caldone() /* done with calculation */ |
| 741 |
> |
caldone() /* done with calculation */ |
| 742 |
|
{ |
| 670 |
– |
int pid; |
| 671 |
– |
|
| 743 |
|
if (childpid == -1) |
| 744 |
|
return; |
| 745 |
< |
clearqueue(1); |
| 746 |
< |
while ((pid = wait(0)) != -1 && pid != childpid) |
| 676 |
< |
; |
| 745 |
> |
clearqueue(); |
| 746 |
> |
close_process(PDesc); |
| 747 |
|
childpid = -1; |
| 748 |
|
} |
| 749 |
|
|
| 751 |
|
rcalfill(x, y) /* fill with ray-calculated pixel */ |
| 752 |
|
int x, y; |
| 753 |
|
{ |
| 754 |
< |
if (queuesiz >= PACKSIZ) /* flush queue if needed */ |
| 755 |
< |
clearqueue(0); |
| 754 |
> |
if (queuesiz >= packsiz) /* flush queue if needed */ |
| 755 |
> |
clearqueue(); |
| 756 |
|
/* add position to queue */ |
| 757 |
|
queue[queuesiz][0] = x; |
| 758 |
|
queue[queuesiz][1] = y; |
| 760 |
|
} |
| 761 |
|
|
| 762 |
|
|
| 763 |
< |
clearqueue(done) /* process queue */ |
| 694 |
< |
int done; |
| 763 |
> |
clearqueue() /* process queue */ |
| 764 |
|
{ |
| 765 |
|
FVECT orig, dir; |
| 766 |
< |
float fbuf[6]; |
| 766 |
> |
float fbuf[6*(PACKSIZ+1)]; |
| 767 |
> |
register float *fbp; |
| 768 |
|
register int i; |
| 769 |
|
|
| 770 |
+ |
fbp = fbuf; |
| 771 |
|
for (i = 0; i < queuesiz; i++) { |
| 772 |
|
viewray(orig, dir, &ourview, |
| 773 |
|
(queue[i][0]+.5)/hresolu, |
| 774 |
|
(queue[i][1]+.5)/vresolu); |
| 775 |
< |
fbuf[0] = orig[0]; fbuf[1] = orig[1]; fbuf[2] = orig[2]; |
| 776 |
< |
fbuf[3] = dir[0]; fbuf[4] = dir[1]; fbuf[5] = dir[2]; |
| 706 |
< |
fwrite(fbuf, sizeof(float), 6, psend); |
| 775 |
> |
*fbp++ = orig[0]; *fbp++ = orig[1]; *fbp++ = orig[2]; |
| 776 |
> |
*fbp++ = dir[0]; *fbp++ = dir[1]; *fbp++ = dir[2]; |
| 777 |
|
} |
| 778 |
< |
if ((done ? fclose(psend) : fflush(psend)) == EOF) |
| 779 |
< |
syserror(); |
| 778 |
> |
/* mark end and get results */ |
| 779 |
> |
bzero((char *)fbp, 6*sizeof(float)); |
| 780 |
> |
if (process(PDesc, fbuf, fbuf, 4*sizeof(float)*queuesiz, |
| 781 |
> |
6*sizeof(float)*(queuesiz+1)) != |
| 782 |
> |
4*sizeof(float)*queuesiz) { |
| 783 |
> |
fprintf(stderr, "%s: error reading from rtrace process\n", |
| 784 |
> |
progname); |
| 785 |
> |
exit(1); |
| 786 |
> |
} |
| 787 |
> |
fbp = fbuf; |
| 788 |
|
for (i = 0; i < queuesiz; i++) { |
| 711 |
– |
if (fread(fbuf, sizeof(float), 4, precv) < 4) { |
| 712 |
– |
fprintf(stderr, "%s: read error in clearqueue\n", |
| 713 |
– |
progname); |
| 714 |
– |
exit(1); |
| 715 |
– |
} |
| 789 |
|
if (ourexp > 0 && ourexp != 1.0) { |
| 790 |
< |
fbuf[0] *= ourexp; |
| 791 |
< |
fbuf[1] *= ourexp; |
| 792 |
< |
fbuf[2] *= ourexp; |
| 790 |
> |
fbp[0] *= ourexp; |
| 791 |
> |
fbp[1] *= ourexp; |
| 792 |
> |
fbp[2] *= ourexp; |
| 793 |
|
} |
| 794 |
|
setcolr(pscan(queue[i][1])[queue[i][0]], |
| 795 |
< |
fbuf[0], fbuf[1], fbuf[2]); |
| 796 |
< |
zscan(queue[i][1])[queue[i][0]] = fbuf[3]; |
| 795 |
> |
fbp[0], fbp[1], fbp[2]); |
| 796 |
> |
zscan(queue[i][1])[queue[i][0]] = fbp[3]; |
| 797 |
> |
fbp += 4; |
| 798 |
|
} |
| 725 |
– |
if (done) |
| 726 |
– |
fclose(precv); |
| 799 |
|
queuesiz = 0; |
| 800 |
|
} |
| 801 |
|
|