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/* Copyright (c) 1991 Regents of the University of California */ |
2 |
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|
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#ifndef lint |
4 |
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static char SCCSid[] = "$SunId$ LBL"; |
5 |
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#endif |
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|
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#include "standard.h" |
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|
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#include <fcntl.h> |
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|
17 |
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#include "view.h" |
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|
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#include "color.h" |
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|
21 |
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#include "resolu.h" |
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|
23 |
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#ifndef BSD |
24 |
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#define vfork fork |
25 |
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#endif |
26 |
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|
27 |
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#define pscan(y) (ourpict+(y)*hresolu) |
28 |
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#define zscan(y) (ourzbuf+(y)*hresolu) |
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|
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|
33 |
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#define PACKSIZ 42 /* calculation packet size */ |
34 |
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|
35 |
< |
#define RTCOM "rtrace -h -ovl -fff -x %d %s" |
35 |
> |
#define RTCOM "rtrace -h -ovl -fff %s" |
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|
37 |
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#define ABS(x) ((x)>0?(x):-(x)) |
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|
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|
51 |
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char *progname; |
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|
53 |
< |
int fill = F_FORE|F_BACK; /* selected fill algorithm */ |
53 |
> |
int fillo = F_FORE|F_BACK; /* selected fill options */ |
54 |
> |
int fillsamp = 0; /* sample separation (0 == inf) */ |
55 |
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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? */ |
64 |
< |
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 */ |
68 |
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int hasmatrix = 0; /* has transformation matrix */ |
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|
70 |
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int childpid = -1; /* id of fill process */ |
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FILE *psend, *precv; /* pipes to/from fill calculation */ |
105 |
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switch (argv[i][2]) { |
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case '0': /* none */ |
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check(3,0); |
108 |
< |
fill = 0; |
108 |
> |
fillo = 0; |
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break; |
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case 'f': /* foreground */ |
111 |
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check(3,0); |
112 |
< |
fill = F_FORE; |
112 |
> |
fillo = F_FORE; |
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break; |
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case 'b': /* background */ |
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check(3,0); |
116 |
< |
fill = F_BACK; |
116 |
> |
fillo = F_BACK; |
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break; |
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case 'a': /* all */ |
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check(3,0); |
120 |
< |
fill = F_FORE|F_BACK; |
120 |
> |
fillo = F_FORE|F_BACK; |
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break; |
122 |
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case 's': /* sample */ |
123 |
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check(3,1); |
124 |
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fillsamp = atoi(argv[++i]); |
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break; |
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case 'c': /* color */ |
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check(3,3); |
128 |
< |
deffill = backfill; |
128 |
> |
fillfunc = backfill; |
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setcolr(backcolr, atof(argv[i+1]), |
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atof(argv[i+2]), atof(argv[i+3])); |
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i += 3; |
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break; |
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case 'z': /* z value */ |
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check(3,1); |
135 |
< |
deffill = backfill; |
135 |
> |
fillfunc = backfill; |
136 |
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backz = atof(argv[++i]); |
137 |
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break; |
138 |
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case 'r': /* rtrace */ |
139 |
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check(3,1); |
140 |
< |
deffill = rcalfill; |
140 |
> |
fillfunc = rcalfill; |
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calstart(RTCOM, argv[++i]); |
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break; |
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default: |
164 |
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if (argv[i][2] != 'f') |
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goto badopt; |
166 |
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check(3,1); |
167 |
< |
gotvfile = viewfile(argv[++i], &ourview); |
167 |
> |
gotvfile = viewfile(argv[++i], &ourview, 0, 0); |
168 |
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if (gotvfile < 0) { |
169 |
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perror(argv[i]); |
170 |
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exit(1); |
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for ( ; i < argc; i += 2) |
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addpicture(argv[i], argv[i+1]); |
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/* fill in spaces */ |
202 |
< |
if (fill&F_BACK) |
203 |
< |
backpicture(); |
202 |
> |
if (fillo&F_BACK) |
203 |
> |
backpicture(fillfunc, fillsamp); |
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else |
205 |
< |
fillpicture(); |
205 |
> |
fillpicture(fillfunc); |
206 |
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/* close calculation */ |
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caldone(); |
208 |
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/* add to header */ |
209 |
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printargs(argc, argv, stdout); |
210 |
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if (gotvfile) { |
211 |
< |
printf(VIEWSTR); |
211 |
> |
fputs(VIEWSTR, stdout); |
212 |
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fprintview(&ourview, stdout); |
213 |
< |
printf("\n"); |
213 |
> |
putc('\n', stdout); |
214 |
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} |
215 |
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if (pixaspect < .99 || pixaspect > 1.01) |
216 |
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fputaspect(pixaspect, stdout); |
217 |
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if (ourexp > 0 && (ourexp < .995 || ourexp > 1.005)) |
218 |
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fputexpos(ourexp, stdout); |
219 |
< |
printf("\n"); |
219 |
> |
fputformat(COLRFMT, stdout); |
220 |
> |
putc('\n', stdout); |
221 |
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/* write picture */ |
222 |
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writepicture(); |
223 |
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/* write z file */ |
237 |
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headline(s) /* process header string */ |
238 |
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char *s; |
239 |
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{ |
240 |
< |
static char *altname[] = {"rview","rpict","pinterp",VIEWSTR,NULL}; |
240 |
> |
static char *altname[] = {VIEWSTR,"rpict","rview","pinterp",NULL}; |
241 |
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register char **an; |
242 |
+ |
char fmt[32]; |
243 |
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|
244 |
< |
printf("\t%s", s); |
244 |
> |
if (isformat(s)) { |
245 |
> |
formatval(fmt, s); |
246 |
> |
wrongformat = strcmp(fmt, COLRFMT); |
247 |
> |
return; |
248 |
> |
} |
249 |
> |
putc('\t', stdout); |
250 |
> |
fputs(s, stdout); |
251 |
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|
252 |
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if (isexpos(s)) { |
253 |
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theirexp *= exposval(s); |
266 |
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char *pfile, *zspec; |
267 |
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{ |
268 |
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extern double atof(); |
269 |
< |
FILE *pfp, *zfp; |
269 |
> |
FILE *pfp; |
270 |
> |
int zfd; |
271 |
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char *err; |
272 |
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COLR *scanin; |
273 |
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float *zin; |
282 |
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theirexp = 1.0; |
283 |
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gotview = 0; |
284 |
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printf("%s:\n", pfile); |
285 |
< |
getheader(pfp, headline); |
286 |
< |
if (!gotview || fgetresolu(&thresolu, &tvresolu, pfp) |
287 |
< |
!= (YMAJOR|YDECR)) { |
262 |
< |
fprintf(stderr, "%s: picture view error\n", pfile); |
285 |
> |
getheader(pfp, headline, NULL); |
286 |
> |
if (wrongformat || !gotview || !fgetsresolu(&tresolu, pfp)) { |
287 |
> |
fprintf(stderr, "%s: picture format error\n", pfile); |
288 |
|
exit(1); |
289 |
|
} |
290 |
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if (ourexp <= 0) |
296 |
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exit(1); |
297 |
|
} |
298 |
|
/* compute transformation */ |
299 |
< |
pixform(theirs2ours, &theirview, &ourview); |
299 |
> |
hasmatrix = pixform(theirs2ours, &theirview, &ourview); |
300 |
|
/* allocate scanlines */ |
301 |
< |
scanin = (COLR *)malloc(thresolu*sizeof(COLR)); |
302 |
< |
zin = (float *)malloc(thresolu*sizeof(float)); |
303 |
< |
plast = (struct position *)calloc(thresolu, sizeof(struct position)); |
301 |
> |
scanin = (COLR *)malloc(scanlen(&tresolu)*sizeof(COLR)); |
302 |
> |
zin = (float *)malloc(scanlen(&tresolu)*sizeof(float)); |
303 |
> |
plast = (struct position *)calloc(scanlen(&tresolu), |
304 |
> |
sizeof(struct position)); |
305 |
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if (scanin == NULL || zin == NULL || plast == NULL) |
306 |
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syserror(); |
307 |
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/* get z specification or file */ |
308 |
< |
if ((zfp = fopen(zspec, "r")) == NULL) { |
308 |
> |
if ((zfd = open(zspec, O_RDONLY)) == -1) { |
309 |
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double zvalue; |
310 |
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register int x; |
311 |
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if (!isfloat(zspec) || (zvalue = atof(zspec)) <= 0.0) { |
312 |
|
perror(zspec); |
313 |
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exit(1); |
314 |
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} |
315 |
< |
for (x = 0; x < thresolu; x++) |
315 |
> |
for (x = scanlen(&tresolu); x-- > 0; ) |
316 |
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zin[x] = zvalue; |
317 |
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} |
318 |
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/* load image */ |
319 |
< |
for (y = tvresolu-1; y >= 0; y--) { |
320 |
< |
if (freadcolrs(scanin, thresolu, pfp) < 0) { |
319 |
> |
for (y = 0; y < numscans(&tresolu); y++) { |
320 |
> |
if (freadcolrs(scanin, scanlen(&tresolu), pfp) < 0) { |
321 |
|
fprintf(stderr, "%s: read error\n", pfile); |
322 |
|
exit(1); |
323 |
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} |
324 |
< |
if (zfp != NULL |
325 |
< |
&& fread(zin,sizeof(float),thresolu,zfp) < thresolu) { |
324 |
> |
if (zfd != -1 && read(zfd,(char *)zin, |
325 |
> |
scanlen(&tresolu)*sizeof(float)) |
326 |
> |
< scanlen(&tresolu)*sizeof(float)) { |
327 |
|
fprintf(stderr, "%s: read error\n", zspec); |
328 |
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exit(1); |
329 |
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} |
334 |
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free((char *)zin); |
335 |
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free((char *)plast); |
336 |
|
fclose(pfp); |
337 |
< |
if (zfp != NULL) |
338 |
< |
fclose(zfp); |
337 |
> |
if (zfd != -1) |
338 |
> |
close(zfd); |
339 |
|
} |
340 |
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|
341 |
|
|
345 |
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{ |
346 |
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double m4t[4][4]; |
347 |
|
|
348 |
+ |
if (vw1->type != VT_PER && vw1->type != VT_PAR) |
349 |
+ |
return(0); |
350 |
+ |
if (vw2->type != VT_PER && vw2->type != VT_PAR) |
351 |
+ |
return(0); |
352 |
|
setident4(xfmat); |
353 |
|
xfmat[0][0] = vw1->hvec[0]; |
354 |
|
xfmat[0][1] = vw1->hvec[1]; |
376 |
|
m4t[2][2] = vw2->vdir[2]; |
377 |
|
m4t[3][2] = -DOT(vw2->vp,vw2->vdir); |
378 |
|
multmat4(xfmat, xfmat, m4t); |
379 |
+ |
return(1); |
380 |
|
} |
381 |
|
|
382 |
|
|
387 |
|
struct position *lasty; /* input/output */ |
388 |
|
{ |
389 |
|
extern double sqrt(); |
390 |
< |
double pos[3]; |
390 |
> |
FVECT pos; |
391 |
|
struct position lastx, newpos; |
392 |
|
register int x; |
393 |
|
|
394 |
< |
for (x = thresolu-1; x >= 0; x--) { |
395 |
< |
pos[0] = (x+.5)/thresolu + theirview.hoff - .5; |
396 |
< |
pos[1] = (y+.5)/tvresolu + theirview.voff - .5; |
394 |
> |
lastx.z = 0; |
395 |
> |
for (x = scanlen(&tresolu); x-- > 0; ) { |
396 |
> |
pix2loc(pos, &tresolu, x, y); |
397 |
|
pos[2] = zline[x]; |
398 |
< |
if (theirview.type == VT_PER) { |
367 |
< |
if (normdist) /* adjust for eye-ray distance */ |
368 |
< |
pos[2] /= sqrt( 1. |
369 |
< |
+ pos[0]*pos[0]*theirview.hn2 |
370 |
< |
+ pos[1]*pos[1]*theirview.vn2 ); |
371 |
< |
pos[0] *= pos[2]; |
372 |
< |
pos[1] *= pos[2]; |
373 |
< |
} |
374 |
< |
multp3(pos, pos, theirs2ours); |
375 |
< |
if (pos[2] <= 0) { |
398 |
> |
if (movepixel(pos) < 0) { |
399 |
|
lasty[x].z = lastx.z = 0; /* mark invalid */ |
400 |
|
continue; |
401 |
|
} |
379 |
– |
if (ourview.type == VT_PER) { |
380 |
– |
pos[0] /= pos[2]; |
381 |
– |
pos[1] /= pos[2]; |
382 |
– |
} |
383 |
– |
pos[0] += .5 - ourview.hoff; |
384 |
– |
pos[1] += .5 - ourview.voff; |
402 |
|
newpos.x = pos[0] * hresolu; |
403 |
|
newpos.y = pos[1] * vresolu; |
404 |
|
newpos.z = zline[x]; |
428 |
|
register int x, y; /* final position */ |
429 |
|
|
430 |
|
/* compute vector p0p1 */ |
431 |
< |
if (fill&F_FORE && ABS(p1->z-p0->z) <= zt) { |
431 |
> |
if (fillo&F_FORE && ABS(p1->z-p0->z) <= zt) { |
432 |
|
s1x = p1->x - p0->x; |
433 |
|
s1y = p1->y - p0->y; |
434 |
|
l1 = ABS(s1x); |
439 |
|
p1isy = -1; |
440 |
|
} |
441 |
|
/* compute vector p0p2 */ |
442 |
< |
if (fill&F_FORE && ABS(p2->z-p0->z) <= zt) { |
442 |
> |
if (fillo&F_FORE && ABS(p2->z-p0->z) <= zt) { |
443 |
|
s2x = p2->x - p0->x; |
444 |
|
s2y = p2->y - p0->y; |
445 |
|
if (p1isy == 1) |
457 |
|
y1 = p0->y + c1*s1y/l1; |
458 |
|
for (c2 = l2; c2-- > 0; ) { |
459 |
|
x = x1 + c2*s2x/l2; |
460 |
+ |
if (x < 0 || x >= hresolu) |
461 |
+ |
continue; |
462 |
|
y = y1 + c2*s2y/l2; |
463 |
+ |
if (y < 0 || y >= vresolu) |
464 |
+ |
continue; |
465 |
|
if (zscan(y)[x] <= 0 || zscan(y)[x]-z |
466 |
|
> zeps*zscan(y)[x]) { |
467 |
|
zscan(y)[x] = z; |
472 |
|
} |
473 |
|
|
474 |
|
|
475 |
< |
backpicture() /* background fill algorithm */ |
475 |
> |
movepixel(pos) /* reposition image point */ |
476 |
> |
FVECT pos; |
477 |
|
{ |
478 |
+ |
FVECT pt, direc; |
479 |
+ |
|
480 |
+ |
if (pos[2] <= 0) /* empty pixel */ |
481 |
+ |
return(-1); |
482 |
+ |
if (hasmatrix) { |
483 |
+ |
pos[0] += theirview.hoff - .5; |
484 |
+ |
pos[1] += theirview.voff - .5; |
485 |
+ |
if (theirview.type == VT_PER) { |
486 |
+ |
if (normdist) /* adjust for eye-ray distance */ |
487 |
+ |
pos[2] /= sqrt( 1. |
488 |
+ |
+ pos[0]*pos[0]*theirview.hn2 |
489 |
+ |
+ pos[1]*pos[1]*theirview.vn2 ); |
490 |
+ |
pos[0] *= pos[2]; |
491 |
+ |
pos[1] *= pos[2]; |
492 |
+ |
} |
493 |
+ |
multp3(pos, pos, theirs2ours); |
494 |
+ |
if (pos[2] <= 0) |
495 |
+ |
return(-1); |
496 |
+ |
if (ourview.type == VT_PER) { |
497 |
+ |
pos[0] /= pos[2]; |
498 |
+ |
pos[1] /= pos[2]; |
499 |
+ |
} |
500 |
+ |
pos[0] += .5 - ourview.hoff; |
501 |
+ |
pos[1] += .5 - ourview.voff; |
502 |
+ |
return(0); |
503 |
+ |
} |
504 |
+ |
if (viewray(pt, direc, &theirview, pos[0], pos[1]) < 0) |
505 |
+ |
return(-1); |
506 |
+ |
pt[0] += direc[0]*pos[2]; |
507 |
+ |
pt[1] += direc[1]*pos[2]; |
508 |
+ |
pt[2] += direc[2]*pos[2]; |
509 |
+ |
viewloc(pos, &ourview, pt); |
510 |
+ |
if (pos[2] <= 0) |
511 |
+ |
return(-1); |
512 |
+ |
return(0); |
513 |
+ |
} |
514 |
+ |
|
515 |
+ |
|
516 |
+ |
backpicture(fill, samp) /* background fill algorithm */ |
517 |
+ |
int (*fill)(); |
518 |
+ |
int samp; |
519 |
+ |
{ |
520 |
|
int *yback, xback; |
521 |
|
int y; |
458 |
– |
COLR pfill; |
522 |
|
register int x, i; |
523 |
|
/* get back buffer */ |
524 |
|
yback = (int *)malloc(hresolu*sizeof(int)); |
565 |
|
xback = x-1; |
566 |
|
} |
567 |
|
/* |
568 |
< |
* Check to see if we have no background for |
569 |
< |
* this pixel. If not, use background color. |
568 |
> |
* If we have no background for this pixel, |
569 |
> |
* use the given fill function. |
570 |
|
*/ |
571 |
< |
if (xback < 0 && yback[x] < 0) { |
572 |
< |
(*deffill)(x,y); |
510 |
< |
continue; |
511 |
< |
} |
571 |
> |
if (xback < 0 && yback[x] < 0) |
572 |
> |
goto fillit; |
573 |
|
/* |
574 |
|
* Compare, and use the background that is |
575 |
|
* farther, unless one of them is next to us. |
576 |
+ |
* If the background is too distant, call |
577 |
+ |
* the fill function. |
578 |
|
*/ |
579 |
|
if ( yback[x] < 0 |
580 |
|
|| (xback >= 0 && ABS(x-xback) <= 1) |
581 |
|
|| ( ABS(y-yback[x]) > 1 |
582 |
|
&& zscan(yback[x])[x] |
583 |
|
< zscan(y)[xback] ) ) { |
584 |
+ |
if (samp > 0 && ABS(x-xback) >= samp) |
585 |
+ |
goto fillit; |
586 |
|
copycolr(pscan(y)[x],pscan(y)[xback]); |
587 |
|
zscan(y)[x] = zscan(y)[xback]; |
588 |
|
} else { |
589 |
+ |
if (samp > 0 && ABS(y-yback[x]) > samp) |
590 |
+ |
goto fillit; |
591 |
|
copycolr(pscan(y)[x],pscan(yback[x])[x]); |
592 |
|
zscan(y)[x] = zscan(yback[x])[x]; |
593 |
|
} |
594 |
+ |
continue; |
595 |
+ |
fillit: |
596 |
+ |
(*fill)(x,y); |
597 |
+ |
if (fill == rcalfill) { /* use it */ |
598 |
+ |
clearqueue(); |
599 |
+ |
xback = x; |
600 |
+ |
yback[x] = y; |
601 |
+ |
} |
602 |
|
} else { /* full pixel */ |
603 |
|
yback[x] = -2; |
604 |
|
xback = -2; |
608 |
|
} |
609 |
|
|
610 |
|
|
611 |
< |
fillpicture() /* paint in empty pixels with default */ |
611 |
> |
fillpicture(fill) /* paint in empty pixels using fill */ |
612 |
> |
int (*fill)(); |
613 |
|
{ |
614 |
|
register int x, y; |
615 |
|
|
616 |
|
for (y = 0; y < vresolu; y++) |
617 |
|
for (x = 0; x < hresolu; x++) |
618 |
|
if (zscan(y)[x] <= 0) |
619 |
< |
(*deffill)(x,y); |
619 |
> |
(*fill)(x,y); |
620 |
|
} |
621 |
|
|
622 |
|
|
624 |
|
{ |
625 |
|
int y; |
626 |
|
|
627 |
< |
fputresolu(YMAJOR|YDECR, hresolu, vresolu, stdout); |
627 |
> |
fprtresolu(hresolu, vresolu, stdout); |
628 |
|
for (y = vresolu-1; y >= 0; y--) |
629 |
|
if (fwritecolrs(pscan(y), hresolu, stdout) < 0) |
630 |
|
syserror(); |
636 |
|
{ |
637 |
|
extern double sqrt(); |
638 |
|
int donorm = normdist && ourview.type == VT_PER; |
639 |
< |
FILE *fp; |
639 |
> |
int fd; |
640 |
|
int y; |
641 |
|
float *zout; |
642 |
|
|
643 |
< |
if ((fp = fopen(fname, "w")) == NULL) { |
643 |
> |
if ((fd = open(fname, O_WRONLY|O_CREAT|O_TRUNC, 0666)) == -1) { |
644 |
|
perror(fname); |
645 |
|
exit(1); |
646 |
|
} |
651 |
|
if (donorm) { |
652 |
|
double vx, yzn2; |
653 |
|
register int x; |
654 |
< |
yzn2 = y - .5*(vresolu-1); |
654 |
> |
yzn2 = (y+.5)/vresolu + ourview.voff - .5; |
655 |
|
yzn2 = 1. + yzn2*yzn2*ourview.vn2; |
656 |
|
for (x = 0; x < hresolu; x++) { |
657 |
< |
vx = x - .5*(hresolu-1); |
657 |
> |
vx = (x+.5)/hresolu + ourview.hoff - .5; |
658 |
|
zout[x] = zscan(y)[x] |
659 |
|
* sqrt(vx*vx*ourview.hn2 + yzn2); |
660 |
|
} |
661 |
|
} else |
662 |
|
zout = zscan(y); |
663 |
< |
if (fwrite(zout, sizeof(float), hresolu, fp) < hresolu) { |
663 |
> |
if (write(fd, (char *)zout, hresolu*sizeof(float)) |
664 |
> |
< hresolu*sizeof(float)) { |
665 |
|
perror(fname); |
666 |
|
exit(1); |
667 |
|
} |
668 |
|
} |
669 |
|
if (donorm) |
670 |
|
free((char *)zout); |
671 |
< |
fclose(fp); |
671 |
> |
close(fd); |
672 |
|
} |
673 |
|
|
674 |
|
|
703 |
|
fprintf(stderr, "%s: too many calculations\n", progname); |
704 |
|
exit(1); |
705 |
|
} |
706 |
< |
sprintf(combuf, prog, PACKSIZ, args); |
706 |
> |
sprintf(combuf, prog, args); |
707 |
|
if (pipe(p0) < 0 || pipe(p1) < 0) |
708 |
|
syserror(); |
709 |
|
if ((childpid = vfork()) == 0) { /* fork calculation */ |
739 |
|
|
740 |
|
if (childpid == -1) |
741 |
|
return; |
665 |
– |
if (fclose(psend) == EOF) |
666 |
– |
syserror(); |
742 |
|
clearqueue(); |
743 |
+ |
fclose(psend); |
744 |
|
fclose(precv); |
745 |
|
while ((pid = wait(0)) != -1 && pid != childpid) |
746 |
|
; |
751 |
|
rcalfill(x, y) /* fill with ray-calculated pixel */ |
752 |
|
int x, y; |
753 |
|
{ |
754 |
< |
FVECT orig, dir; |
679 |
< |
float outbuf[6]; |
680 |
< |
|
681 |
< |
if (queuesiz >= PACKSIZ) { /* flush queue */ |
682 |
< |
if (fflush(psend) == EOF) |
683 |
< |
syserror(); |
754 |
> |
if (queuesiz >= PACKSIZ) /* flush queue if needed */ |
755 |
|
clearqueue(); |
756 |
< |
} |
686 |
< |
/* send new ray */ |
687 |
< |
viewray(orig, dir, &ourview, (x+.5)/hresolu, (y+.5)/vresolu); |
688 |
< |
outbuf[0] = orig[0]; outbuf[1] = orig[1]; outbuf[2] = orig[2]; |
689 |
< |
outbuf[3] = dir[0]; outbuf[4] = dir[1]; outbuf[5] = dir[2]; |
690 |
< |
if (fwrite(outbuf, sizeof(float), 6, psend) < 6) |
691 |
< |
syserror(); |
692 |
< |
/* remember it */ |
756 |
> |
/* add position to queue */ |
757 |
|
queue[queuesiz][0] = x; |
758 |
|
queue[queuesiz][1] = y; |
759 |
|
queuesiz++; |
760 |
|
} |
761 |
|
|
762 |
|
|
763 |
< |
clearqueue() /* get results from queue */ |
763 |
> |
clearqueue() /* process queue */ |
764 |
|
{ |
765 |
< |
float inbuf[4]; |
765 |
> |
FVECT orig, dir; |
766 |
> |
float fbuf[6]; |
767 |
|
register int i; |
768 |
|
|
769 |
|
for (i = 0; i < queuesiz; i++) { |
770 |
< |
if (fread(inbuf, sizeof(float), 4, precv) < 4) { |
770 |
> |
viewray(orig, dir, &ourview, |
771 |
> |
(queue[i][0]+.5)/hresolu, |
772 |
> |
(queue[i][1]+.5)/vresolu); |
773 |
> |
fbuf[0] = orig[0]; fbuf[1] = orig[1]; fbuf[2] = orig[2]; |
774 |
> |
fbuf[3] = dir[0]; fbuf[4] = dir[1]; fbuf[5] = dir[2]; |
775 |
> |
fwrite((char *)fbuf, sizeof(float), 6, psend); |
776 |
> |
} |
777 |
> |
/* flush output and get results */ |
778 |
> |
fbuf[3] = fbuf[4] = fbuf[5] = 0.0; /* mark */ |
779 |
> |
fwrite((char *)fbuf, sizeof(float), 6, psend); |
780 |
> |
if (fflush(psend) == EOF) |
781 |
> |
syserror(); |
782 |
> |
for (i = 0; i < queuesiz; i++) { |
783 |
> |
if (fread((char *)fbuf, sizeof(float), 4, precv) < 4) { |
784 |
|
fprintf(stderr, "%s: read error in clearqueue\n", |
785 |
|
progname); |
786 |
|
exit(1); |
787 |
|
} |
788 |
|
if (ourexp > 0 && ourexp != 1.0) { |
789 |
< |
inbuf[0] *= ourexp; |
790 |
< |
inbuf[1] *= ourexp; |
791 |
< |
inbuf[2] *= ourexp; |
789 |
> |
fbuf[0] *= ourexp; |
790 |
> |
fbuf[1] *= ourexp; |
791 |
> |
fbuf[2] *= ourexp; |
792 |
|
} |
793 |
|
setcolr(pscan(queue[i][1])[queue[i][0]], |
794 |
< |
inbuf[0], inbuf[1], inbuf[2]); |
795 |
< |
zscan(queue[i][1])[queue[i][0]] = inbuf[3]; |
794 |
> |
fbuf[0], fbuf[1], fbuf[2]); |
795 |
> |
zscan(queue[i][1])[queue[i][0]] = fbuf[3]; |
796 |
|
} |
797 |
|
queuesiz = 0; |
798 |
|
} |