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/* Copyright (c) 1991 Regents of the University of California */ |
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#ifndef lint |
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static char SCCSid[] = "$SunId$ LBL"; |
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#endif |
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#include "standard.h" |
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|
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< |
#include <sys/fcntl.h> |
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#include <fcntl.h> |
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|
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#include "view.h" |
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|
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#include "color.h" |
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|
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#include "resolu.h" |
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|
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#ifndef BSD |
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#define vfork fork |
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#endif |
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|
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#define PACKSIZ 42 /* calculation packet size */ |
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|
35 |
< |
#define RTCOM "rtrace -h -ovl -fff -x %d %s" |
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> |
#define RTCOM "rtrace -h -ovl -fff %s" |
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|
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#define ABS(x) ((x)>0?(x):-(x)) |
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|
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|
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char *progname; |
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|
53 |
< |
int fill = F_FORE|F_BACK; /* selected fill algorithm */ |
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> |
int fillo = F_FORE|F_BACK; /* selected fill options */ |
54 |
> |
int fillsamp = 0; /* sample separation (0 == inf) */ |
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extern int backfill(), rcalfill(); /* fill functions */ |
56 |
< |
int (*deffill)() = backfill; /* selected fill function */ |
56 |
> |
int (*fillfunc)() = backfill; /* selected fill function */ |
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COLR backcolr = BLKCOLR; /* background color */ |
58 |
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double backz = 0.0; /* background z value */ |
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int normdist = 1; /* normalized distance? */ |
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|
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VIEW theirview = STDVIEW; /* input view */ |
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int gotview; /* got input view? */ |
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< |
int thresolu, tvresolu; /* input resolution */ |
64 |
> |
int wrongformat = 0; /* input in another format? */ |
65 |
> |
RESOLU tresolu; /* input resolution */ |
66 |
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double theirexp; /* input picture exposure */ |
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double theirs2ours[4][4]; /* transformation matrix */ |
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int hasmatrix = 0; /* has transformation matrix */ |
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|
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int childpid = -1; /* id of fill process */ |
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FILE *psend, *precv; /* pipes to/from fill calculation */ |
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char *argv[]; |
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{ |
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#define check(olen,narg) if (argv[i][olen] || narg >= argc-i) goto badopt |
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extern double atof(); |
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int gotvfile = 0; |
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char *zfile = NULL; |
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char *err; |
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switch (argv[i][2]) { |
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case '0': /* none */ |
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check(3,0); |
107 |
< |
fill = 0; |
107 |
> |
fillo = 0; |
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break; |
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case 'f': /* foreground */ |
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check(3,0); |
111 |
< |
fill = F_FORE; |
111 |
> |
fillo = F_FORE; |
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break; |
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case 'b': /* background */ |
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check(3,0); |
115 |
< |
fill = F_BACK; |
115 |
> |
fillo = F_BACK; |
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break; |
117 |
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case 'a': /* all */ |
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check(3,0); |
119 |
< |
fill = F_FORE|F_BACK; |
119 |
> |
fillo = F_FORE|F_BACK; |
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break; |
121 |
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case 's': /* sample */ |
122 |
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check(3,1); |
123 |
+ |
fillsamp = atoi(argv[++i]); |
124 |
+ |
break; |
125 |
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case 'c': /* color */ |
126 |
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check(3,3); |
127 |
< |
deffill = backfill; |
127 |
> |
fillfunc = backfill; |
128 |
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setcolr(backcolr, atof(argv[i+1]), |
129 |
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atof(argv[i+2]), atof(argv[i+3])); |
130 |
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i += 3; |
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break; |
132 |
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case 'z': /* z value */ |
133 |
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check(3,1); |
134 |
< |
deffill = backfill; |
134 |
> |
fillfunc = backfill; |
135 |
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backz = atof(argv[++i]); |
136 |
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break; |
137 |
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case 'r': /* rtrace */ |
138 |
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check(3,1); |
139 |
< |
deffill = rcalfill; |
139 |
> |
fillfunc = rcalfill; |
140 |
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calstart(RTCOM, argv[++i]); |
141 |
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break; |
142 |
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default: |
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for ( ; i < argc; i += 2) |
199 |
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addpicture(argv[i], argv[i+1]); |
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/* fill in spaces */ |
201 |
< |
if (fill&F_BACK) |
202 |
< |
backpicture(); |
201 |
> |
if (fillo&F_BACK) |
202 |
> |
backpicture(fillfunc, fillsamp); |
203 |
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else |
204 |
< |
fillpicture(); |
204 |
> |
fillpicture(fillfunc); |
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/* close calculation */ |
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caldone(); |
207 |
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/* add to header */ |
208 |
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printargs(argc, argv, stdout); |
209 |
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if (gotvfile) { |
210 |
< |
printf(VIEWSTR); |
210 |
> |
fputs(VIEWSTR, stdout); |
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fprintview(&ourview, stdout); |
212 |
< |
printf("\n"); |
212 |
> |
putc('\n', stdout); |
213 |
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} |
214 |
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if (pixaspect < .99 || pixaspect > 1.01) |
215 |
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fputaspect(pixaspect, stdout); |
216 |
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if (ourexp > 0 && (ourexp < .995 || ourexp > 1.005)) |
217 |
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fputexpos(ourexp, stdout); |
218 |
< |
printf("\n"); |
218 |
> |
fputformat(COLRFMT, stdout); |
219 |
> |
putc('\n', stdout); |
220 |
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/* write picture */ |
221 |
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writepicture(); |
222 |
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/* write z file */ |
236 |
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headline(s) /* process header string */ |
237 |
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char *s; |
238 |
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{ |
239 |
< |
static char *altname[] = {"rview","rpict","pinterp",VIEWSTR,NULL}; |
239 |
> |
static char *altname[] = {VIEWSTR,"rpict","rview","pinterp",NULL}; |
240 |
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register char **an; |
241 |
+ |
char fmt[32]; |
242 |
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|
243 |
< |
printf("\t%s", s); |
243 |
> |
if (isformat(s)) { |
244 |
> |
formatval(fmt, s); |
245 |
> |
wrongformat = strcmp(fmt, COLRFMT); |
246 |
> |
return; |
247 |
> |
} |
248 |
> |
putc('\t', stdout); |
249 |
> |
fputs(s, stdout); |
250 |
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|
251 |
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if (isexpos(s)) { |
252 |
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theirexp *= exposval(s); |
264 |
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addpicture(pfile, zspec) /* add picture to output */ |
265 |
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char *pfile, *zspec; |
266 |
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{ |
249 |
– |
extern double atof(); |
267 |
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FILE *pfp; |
268 |
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int zfd; |
269 |
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char *err; |
280 |
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theirexp = 1.0; |
281 |
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gotview = 0; |
282 |
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printf("%s:\n", pfile); |
283 |
< |
getheader(pfp, headline); |
284 |
< |
if (!gotview || fgetresolu(&thresolu, &tvresolu, pfp) |
285 |
< |
!= (YMAJOR|YDECR)) { |
269 |
< |
fprintf(stderr, "%s: picture view error\n", pfile); |
283 |
> |
getheader(pfp, headline, NULL); |
284 |
> |
if (wrongformat || !gotview || !fgetsresolu(&tresolu, pfp)) { |
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)); |
301 |
< |
plast = (struct position *)calloc(thresolu, sizeof(struct position)); |
299 |
> |
scanin = (COLR *)malloc(scanlen(&tresolu)*sizeof(COLR)); |
300 |
> |
zin = (float *)malloc(scanlen(&tresolu)*sizeof(float)); |
301 |
> |
plast = (struct position *)calloc(scanlen(&tresolu), |
302 |
> |
sizeof(struct position)); |
303 |
|
if (scanin == NULL || zin == NULL || plast == NULL) |
304 |
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syserror(); |
305 |
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/* get z specification or file */ |
310 |
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perror(zspec); |
311 |
|
exit(1); |
312 |
|
} |
313 |
< |
for (x = 0; x < thresolu; x++) |
313 |
> |
for (x = scanlen(&tresolu); x-- > 0; ) |
314 |
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zin[x] = zvalue; |
315 |
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} |
316 |
|
/* load image */ |
317 |
< |
for (y = tvresolu-1; y >= 0; y--) { |
318 |
< |
if (freadcolrs(scanin, thresolu, pfp) < 0) { |
317 |
> |
for (y = 0; y < numscans(&tresolu); y++) { |
318 |
> |
if (freadcolrs(scanin, scanlen(&tresolu), pfp) < 0) { |
319 |
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fprintf(stderr, "%s: read error\n", pfile); |
320 |
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exit(1); |
321 |
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} |
322 |
< |
if (zfd != -1 && read(zfd,(char *)zin,thresolu*sizeof(float)) |
323 |
< |
< thresolu*sizeof(float)) { |
322 |
> |
if (zfd != -1 && read(zfd,(char *)zin, |
323 |
> |
scanlen(&tresolu)*sizeof(float)) |
324 |
> |
< scanlen(&tresolu)*sizeof(float)) { |
325 |
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fprintf(stderr, "%s: read error\n", zspec); |
326 |
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exit(1); |
327 |
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} |
343 |
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{ |
344 |
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double m4t[4][4]; |
345 |
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|
346 |
+ |
if (vw1->type != VT_PER && vw1->type != VT_PAR) |
347 |
+ |
return(0); |
348 |
+ |
if (vw2->type != VT_PER && vw2->type != VT_PAR) |
349 |
+ |
return(0); |
350 |
|
setident4(xfmat); |
351 |
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xfmat[0][0] = vw1->hvec[0]; |
352 |
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xfmat[0][1] = vw1->hvec[1]; |
374 |
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m4t[2][2] = vw2->vdir[2]; |
375 |
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m4t[3][2] = -DOT(vw2->vp,vw2->vdir); |
376 |
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multmat4(xfmat, xfmat, m4t); |
377 |
+ |
return(1); |
378 |
|
} |
379 |
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|
380 |
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|
385 |
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struct position *lasty; /* input/output */ |
386 |
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{ |
387 |
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extern double sqrt(); |
388 |
< |
double pos[3]; |
388 |
> |
FVECT pos; |
389 |
|
struct position lastx, newpos; |
390 |
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register int x; |
391 |
|
|
392 |
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lastx.z = 0; |
393 |
< |
for (x = thresolu-1; x >= 0; x--) { |
394 |
< |
pos[0] = (x+.5)/thresolu + theirview.hoff - .5; |
372 |
< |
pos[1] = (y+.5)/tvresolu + theirview.voff - .5; |
393 |
> |
for (x = scanlen(&tresolu); x-- > 0; ) { |
394 |
> |
pix2loc(pos, &tresolu, x, y); |
395 |
|
pos[2] = zline[x]; |
396 |
< |
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) { |
396 |
> |
if (movepixel(pos) < 0) { |
397 |
|
lasty[x].z = lastx.z = 0; /* mark invalid */ |
398 |
|
continue; |
399 |
|
} |
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; |
400 |
|
newpos.x = pos[0] * hresolu; |
401 |
|
newpos.y = pos[1] * vresolu; |
402 |
|
newpos.z = zline[x]; |
426 |
|
register int x, y; /* final position */ |
427 |
|
|
428 |
|
/* compute vector p0p1 */ |
429 |
< |
if (fill&F_FORE && ABS(p1->z-p0->z) <= zt) { |
429 |
> |
if (fillo&F_FORE && ABS(p1->z-p0->z) <= zt) { |
430 |
|
s1x = p1->x - p0->x; |
431 |
|
s1y = p1->y - p0->y; |
432 |
|
l1 = ABS(s1x); |
437 |
|
p1isy = -1; |
438 |
|
} |
439 |
|
/* compute vector p0p2 */ |
440 |
< |
if (fill&F_FORE && ABS(p2->z-p0->z) <= zt) { |
440 |
> |
if (fillo&F_FORE && ABS(p2->z-p0->z) <= zt) { |
441 |
|
s2x = p2->x - p0->x; |
442 |
|
s2y = p2->y - p0->y; |
443 |
|
if (p1isy == 1) |
455 |
|
y1 = p0->y + c1*s1y/l1; |
456 |
|
for (c2 = l2; c2-- > 0; ) { |
457 |
|
x = x1 + c2*s2x/l2; |
458 |
+ |
if (x < 0 || x >= hresolu) |
459 |
+ |
continue; |
460 |
|
y = y1 + c2*s2y/l2; |
461 |
+ |
if (y < 0 || y >= vresolu) |
462 |
+ |
continue; |
463 |
|
if (zscan(y)[x] <= 0 || zscan(y)[x]-z |
464 |
|
> zeps*zscan(y)[x]) { |
465 |
|
zscan(y)[x] = z; |
470 |
|
} |
471 |
|
|
472 |
|
|
473 |
< |
backpicture() /* background fill algorithm */ |
473 |
> |
movepixel(pos) /* reposition image point */ |
474 |
> |
FVECT pos; |
475 |
|
{ |
476 |
+ |
FVECT pt, direc; |
477 |
+ |
|
478 |
+ |
if (pos[2] <= 0) /* empty pixel */ |
479 |
+ |
return(-1); |
480 |
+ |
if (hasmatrix) { |
481 |
+ |
pos[0] += theirview.hoff - .5; |
482 |
+ |
pos[1] += theirview.voff - .5; |
483 |
+ |
if (theirview.type == VT_PER) { |
484 |
+ |
if (normdist) /* adjust for eye-ray distance */ |
485 |
+ |
pos[2] /= sqrt( 1. |
486 |
+ |
+ pos[0]*pos[0]*theirview.hn2 |
487 |
+ |
+ pos[1]*pos[1]*theirview.vn2 ); |
488 |
+ |
pos[0] *= pos[2]; |
489 |
+ |
pos[1] *= pos[2]; |
490 |
+ |
} |
491 |
+ |
multp3(pos, pos, theirs2ours); |
492 |
+ |
if (pos[2] <= 0) |
493 |
+ |
return(-1); |
494 |
+ |
if (ourview.type == VT_PER) { |
495 |
+ |
pos[0] /= pos[2]; |
496 |
+ |
pos[1] /= pos[2]; |
497 |
+ |
} |
498 |
+ |
pos[0] += .5 - ourview.hoff; |
499 |
+ |
pos[1] += .5 - ourview.voff; |
500 |
+ |
return(0); |
501 |
+ |
} |
502 |
+ |
if (viewray(pt, direc, &theirview, pos[0], pos[1]) < 0) |
503 |
+ |
return(-1); |
504 |
+ |
pt[0] += direc[0]*pos[2]; |
505 |
+ |
pt[1] += direc[1]*pos[2]; |
506 |
+ |
pt[2] += direc[2]*pos[2]; |
507 |
+ |
viewloc(pos, &ourview, pt); |
508 |
+ |
if (pos[2] <= 0) |
509 |
+ |
return(-1); |
510 |
+ |
return(0); |
511 |
+ |
} |
512 |
+ |
|
513 |
+ |
|
514 |
+ |
backpicture(fill, samp) /* background fill algorithm */ |
515 |
+ |
int (*fill)(); |
516 |
+ |
int samp; |
517 |
+ |
{ |
518 |
|
int *yback, xback; |
519 |
|
int y; |
466 |
– |
COLR pfill; |
520 |
|
register int x, i; |
521 |
|
/* get back buffer */ |
522 |
|
yback = (int *)malloc(hresolu*sizeof(int)); |
563 |
|
xback = x-1; |
564 |
|
} |
565 |
|
/* |
566 |
< |
* Check to see if we have no background for |
567 |
< |
* this pixel. If not, use background color. |
566 |
> |
* If we have no background for this pixel, |
567 |
> |
* use the given fill function. |
568 |
|
*/ |
569 |
< |
if (xback < 0 && yback[x] < 0) { |
570 |
< |
(*deffill)(x,y); |
518 |
< |
continue; |
519 |
< |
} |
569 |
> |
if (xback < 0 && yback[x] < 0) |
570 |
> |
goto fillit; |
571 |
|
/* |
572 |
|
* Compare, and use the background that is |
573 |
|
* farther, unless one of them is next to us. |
574 |
+ |
* If the background is too distant, call |
575 |
+ |
* the fill function. |
576 |
|
*/ |
577 |
|
if ( yback[x] < 0 |
578 |
|
|| (xback >= 0 && ABS(x-xback) <= 1) |
579 |
|
|| ( ABS(y-yback[x]) > 1 |
580 |
|
&& zscan(yback[x])[x] |
581 |
|
< zscan(y)[xback] ) ) { |
582 |
+ |
if (samp > 0 && ABS(x-xback) >= samp) |
583 |
+ |
goto fillit; |
584 |
|
copycolr(pscan(y)[x],pscan(y)[xback]); |
585 |
|
zscan(y)[x] = zscan(y)[xback]; |
586 |
|
} else { |
587 |
+ |
if (samp > 0 && ABS(y-yback[x]) > samp) |
588 |
+ |
goto fillit; |
589 |
|
copycolr(pscan(y)[x],pscan(yback[x])[x]); |
590 |
|
zscan(y)[x] = zscan(yback[x])[x]; |
591 |
|
} |
592 |
+ |
continue; |
593 |
+ |
fillit: |
594 |
+ |
(*fill)(x,y); |
595 |
+ |
if (fill == rcalfill) { /* use it */ |
596 |
+ |
clearqueue(); |
597 |
+ |
xback = x; |
598 |
+ |
yback[x] = y; |
599 |
+ |
} |
600 |
|
} else { /* full pixel */ |
601 |
|
yback[x] = -2; |
602 |
|
xback = -2; |
606 |
|
} |
607 |
|
|
608 |
|
|
609 |
< |
fillpicture() /* paint in empty pixels with default */ |
609 |
> |
fillpicture(fill) /* paint in empty pixels using fill */ |
610 |
> |
int (*fill)(); |
611 |
|
{ |
612 |
|
register int x, y; |
613 |
|
|
614 |
|
for (y = 0; y < vresolu; y++) |
615 |
|
for (x = 0; x < hresolu; x++) |
616 |
|
if (zscan(y)[x] <= 0) |
617 |
< |
(*deffill)(x,y); |
617 |
> |
(*fill)(x,y); |
618 |
|
} |
619 |
|
|
620 |
|
|
622 |
|
{ |
623 |
|
int y; |
624 |
|
|
625 |
< |
fputresolu(YMAJOR|YDECR, hresolu, vresolu, stdout); |
625 |
> |
fprtresolu(hresolu, vresolu, stdout); |
626 |
|
for (y = vresolu-1; y >= 0; y--) |
627 |
|
if (fwritecolrs(pscan(y), hresolu, stdout) < 0) |
628 |
|
syserror(); |
649 |
|
if (donorm) { |
650 |
|
double vx, yzn2; |
651 |
|
register int x; |
652 |
< |
yzn2 = y - .5*(vresolu-1); |
652 |
> |
yzn2 = (y+.5)/vresolu + ourview.voff - .5; |
653 |
|
yzn2 = 1. + yzn2*yzn2*ourview.vn2; |
654 |
|
for (x = 0; x < hresolu; x++) { |
655 |
< |
vx = x - .5*(hresolu-1); |
655 |
> |
vx = (x+.5)/hresolu + ourview.hoff - .5; |
656 |
|
zout[x] = zscan(y)[x] |
657 |
|
* sqrt(vx*vx*ourview.hn2 + yzn2); |
658 |
|
} |
701 |
|
fprintf(stderr, "%s: too many calculations\n", progname); |
702 |
|
exit(1); |
703 |
|
} |
704 |
< |
sprintf(combuf, prog, PACKSIZ, args); |
704 |
> |
sprintf(combuf, prog, args); |
705 |
|
if (pipe(p0) < 0 || pipe(p1) < 0) |
706 |
|
syserror(); |
707 |
|
if ((childpid = vfork()) == 0) { /* fork calculation */ |
737 |
|
|
738 |
|
if (childpid == -1) |
739 |
|
return; |
740 |
< |
clearqueue(1); |
740 |
> |
clearqueue(); |
741 |
> |
fclose(psend); |
742 |
> |
fclose(precv); |
743 |
|
while ((pid = wait(0)) != -1 && pid != childpid) |
744 |
|
; |
745 |
|
childpid = -1; |
750 |
|
int x, y; |
751 |
|
{ |
752 |
|
if (queuesiz >= PACKSIZ) /* flush queue if needed */ |
753 |
< |
clearqueue(0); |
753 |
> |
clearqueue(); |
754 |
|
/* add position to queue */ |
755 |
|
queue[queuesiz][0] = x; |
756 |
|
queue[queuesiz][1] = y; |
758 |
|
} |
759 |
|
|
760 |
|
|
761 |
< |
clearqueue(done) /* process queue */ |
694 |
< |
int done; |
761 |
> |
clearqueue() /* process queue */ |
762 |
|
{ |
763 |
|
FVECT orig, dir; |
764 |
|
float fbuf[6]; |
772 |
|
fbuf[3] = dir[0]; fbuf[4] = dir[1]; fbuf[5] = dir[2]; |
773 |
|
fwrite((char *)fbuf, sizeof(float), 6, psend); |
774 |
|
} |
775 |
< |
if ((done ? fclose(psend) : fflush(psend)) == EOF) |
775 |
> |
/* flush output and get results */ |
776 |
> |
fbuf[3] = fbuf[4] = fbuf[5] = 0.0; /* mark */ |
777 |
> |
fwrite((char *)fbuf, sizeof(float), 6, psend); |
778 |
> |
if (fflush(psend) == EOF) |
779 |
|
syserror(); |
780 |
|
for (i = 0; i < queuesiz; i++) { |
781 |
|
if (fread((char *)fbuf, sizeof(float), 4, precv) < 4) { |
792 |
|
fbuf[0], fbuf[1], fbuf[2]); |
793 |
|
zscan(queue[i][1])[queue[i][0]] = fbuf[3]; |
794 |
|
} |
725 |
– |
if (done) |
726 |
– |
fclose(precv); |
795 |
|
queuesiz = 0; |
796 |
|
} |
797 |
|
|