1 |
|
#ifndef lint |
2 |
< |
static char SCCSid[] = "$SunId$ LBL"; |
2 |
> |
static const char RCSid[] = "$Id$"; |
3 |
|
#endif |
4 |
– |
|
4 |
|
/* |
5 |
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* Interpolate and extrapolate pictures with different view parameters. |
6 |
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* |
7 |
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* Greg Ward 09Dec89 |
8 |
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*/ |
9 |
|
|
10 |
< |
#include "standard.h" |
10 |
> |
#include "copyright.h" |
11 |
|
|
12 |
< |
#include "view.h" |
12 |
> |
#include <ctype.h> |
13 |
> |
#include <string.h> |
14 |
|
|
15 |
+ |
#include "platform.h" |
16 |
+ |
#include "standard.h" |
17 |
+ |
#include "rtprocess.h" /* Windows: must come before color.h */ |
18 |
+ |
#include "view.h" |
19 |
|
#include "color.h" |
20 |
|
|
21 |
< |
#define pscan(y) (ourpict+(y)*ourview.hresolu) |
18 |
< |
#define zscan(y) (ourzbuf+(y)*ourview.hresolu) |
21 |
> |
#define LOG2 0.69314718055994530942 |
22 |
|
|
23 |
+ |
#define pscan(y) (ourpict+(y)*hresolu) |
24 |
+ |
#define sscan(y) (ourspict+(y)*hresolu) |
25 |
+ |
#define wscan(y) (ourweigh+(y)*hresolu) |
26 |
+ |
#define zscan(y) (ourzbuf+(y)*hresolu) |
27 |
+ |
#define bscan(y) (ourbpict+(y)*hresolu) |
28 |
+ |
#define averaging (ourweigh != NULL) |
29 |
+ |
#define blurring (ourbpict != NULL) |
30 |
+ |
#define usematrix (hasmatrix & !averaging) |
31 |
+ |
#define zisnorm ((!usematrix) | (ourview.type != VT_PER)) |
32 |
+ |
|
33 |
+ |
#define MAXWT 1000. /* maximum pixel weight (averaging) */ |
34 |
+ |
|
35 |
+ |
#define F_FORE 1 /* fill foreground */ |
36 |
+ |
#define F_BACK 2 /* fill background */ |
37 |
+ |
|
38 |
+ |
#define PACKSIZ 256 /* max. calculation packet size */ |
39 |
+ |
|
40 |
+ |
#define RTCOM "rtrace -h- -ovl -fff -ld- -i- -I- " |
41 |
+ |
|
42 |
|
#define ABS(x) ((x)>0?(x):-(x)) |
43 |
|
|
44 |
< |
VIEW ourview = STDVIEW(512); /* desired view */ |
44 |
> |
struct position {int x,y; float z;}; |
45 |
|
|
46 |
< |
double zeps = 0.001; /* allowed z epsilon */ |
46 |
> |
#define NSTEPS 64 /* number steps in overlap prescan */ |
47 |
> |
#define MINSTEP 4 /* minimum worthwhile preview step */ |
48 |
|
|
49 |
< |
COLR *ourpict; /* output picture */ |
49 |
> |
struct bound {int min,max;}; |
50 |
> |
|
51 |
> |
VIEW ourview = STDVIEW; /* desired view */ |
52 |
> |
int hresolu = 512; /* horizontal resolution */ |
53 |
> |
int vresolu = 512; /* vertical resolution */ |
54 |
> |
double pixaspect = 1.0; /* pixel aspect ratio */ |
55 |
> |
|
56 |
> |
double zeps = .02; /* allowed z epsilon */ |
57 |
> |
|
58 |
> |
COLR *ourpict; /* output picture (COLR's) */ |
59 |
> |
COLOR *ourspict; /* output pixel sums (averaging) */ |
60 |
> |
float *ourweigh = NULL; /* output pixel weights (averaging) */ |
61 |
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float *ourzbuf; /* corresponding z-buffer */ |
62 |
+ |
COLOR *ourbpict = NULL; /* blurred picture (view averaging) */ |
63 |
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|
64 |
+ |
VIEW avgview; /* average view for -B option */ |
65 |
+ |
int nvavg; /* number of views averaged */ |
66 |
+ |
|
67 |
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char *progname; |
68 |
|
|
69 |
< |
VIEW theirview = STDVIEW(512); /* input view */ |
69 |
> |
int fillo = F_FORE|F_BACK; /* selected fill options */ |
70 |
> |
int fillsamp = 0; /* sample separation (0 == inf) */ |
71 |
> |
extern int backfill(), rcalfill(); /* fill functions */ |
72 |
> |
int (*fillfunc)() = backfill; /* selected fill function */ |
73 |
> |
COLR backcolr = BLKCOLR; /* background color */ |
74 |
> |
COLOR backcolor = BLKCOLOR; /* background color (float) */ |
75 |
> |
double backz = 0.0; /* background z value */ |
76 |
> |
int normdist = 1; /* i/o normalized distance? */ |
77 |
> |
char ourfmt[LPICFMT+1] = PICFMT; /* original picture format */ |
78 |
> |
double ourexp = -1; /* original picture exposure */ |
79 |
> |
int expadj = 0; /* exposure adjustment (f-stops) */ |
80 |
> |
double rexpadj = 1; /* real exposure adjustment */ |
81 |
> |
|
82 |
> |
VIEW theirview; /* input view */ |
83 |
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int gotview; /* got input view? */ |
84 |
+ |
int wrongformat = 0; /* input in another format? */ |
85 |
+ |
RESOLU tresolu; /* input resolution */ |
86 |
+ |
double theirexp; /* input picture exposure */ |
87 |
+ |
MAT4 theirs2ours; /* transformation matrix */ |
88 |
+ |
int hasmatrix = 0; /* has transformation matrix */ |
89 |
|
|
90 |
< |
double theirs2ours[4][4]; /* transformation matrix */ |
90 |
> |
static SUBPROC PDesc = SP_INACTIVE; /* rtrace process descriptor */ |
91 |
> |
unsigned short queue[PACKSIZ][2]; /* pending pixels */ |
92 |
> |
int packsiz; /* actual packet size */ |
93 |
> |
int queuesiz = 0; /* number of pixels pending */ |
94 |
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|
95 |
+ |
extern double movepixel(); |
96 |
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|
97 |
+ |
static gethfunc headline; |
98 |
+ |
|
99 |
+ |
|
100 |
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main(argc, argv) /* interpolate pictures */ |
101 |
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int argc; |
102 |
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char *argv[]; |
103 |
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{ |
104 |
< |
#define check(olen,narg) if (argv[i][olen] || narg >= argc-i) goto badopt |
104 |
> |
#define check(ol,al) if (argv[an][ol] || \ |
105 |
> |
badarg(argc-an-1,argv+an+1,al)) \ |
106 |
> |
goto badopt |
107 |
|
int gotvfile = 0; |
108 |
< |
char *err; |
109 |
< |
int i; |
108 |
> |
int doavg = -1; |
109 |
> |
int doblur = 0; |
110 |
> |
char *zfile = NULL; |
111 |
> |
char *expcomp = NULL; |
112 |
> |
int i, an, rval; |
113 |
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|
114 |
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progname = argv[0]; |
115 |
|
|
116 |
< |
for (i = 1; i < argc && argv[i][0] == '-'; i++) |
117 |
< |
switch (argv[i][1]) { |
116 |
> |
for (an = 1; an < argc && argv[an][0] == '-'; an++) { |
117 |
> |
rval = getviewopt(&ourview, argc-an, argv+an); |
118 |
> |
if (rval >= 0) { |
119 |
> |
an += rval; |
120 |
> |
continue; |
121 |
> |
} |
122 |
> |
switch (argv[an][1]) { |
123 |
> |
case 'e': /* exposure */ |
124 |
> |
check(2,"f"); |
125 |
> |
expcomp = argv[++an]; |
126 |
> |
break; |
127 |
|
case 't': /* threshold */ |
128 |
< |
check(2,1); |
129 |
< |
zeps = atof(argv[++i]); |
128 |
> |
check(2,"f"); |
129 |
> |
zeps = atof(argv[++an]); |
130 |
|
break; |
131 |
< |
case 'x': /* x resolution */ |
132 |
< |
check(2,1); |
133 |
< |
ourview.hresolu = atoi(argv[++i]); |
131 |
> |
case 'a': /* average */ |
132 |
> |
check(2,NULL); |
133 |
> |
doavg = 1; |
134 |
|
break; |
135 |
< |
case 'y': /* y resolution */ |
136 |
< |
check(2,1); |
137 |
< |
ourview.vresolu = atoi(argv[++i]); |
135 |
> |
case 'B': /* blur views */ |
136 |
> |
check(2,NULL); |
137 |
> |
doblur = 1; |
138 |
|
break; |
139 |
< |
case 'v': /* view */ |
140 |
< |
switch (argv[i][2]) { |
141 |
< |
case 't': /* type */ |
142 |
< |
check(4,0); |
143 |
< |
ourview.type = argv[i][3]; |
139 |
> |
case 'q': /* quick (no avg.) */ |
140 |
> |
check(2,NULL); |
141 |
> |
doavg = 0; |
142 |
> |
break; |
143 |
> |
case 'n': /* dist. normalized? */ |
144 |
> |
check(2,NULL); |
145 |
> |
normdist = !normdist; |
146 |
> |
break; |
147 |
> |
case 'f': /* fill type */ |
148 |
> |
switch (argv[an][2]) { |
149 |
> |
case '0': /* none */ |
150 |
> |
check(3,NULL); |
151 |
> |
fillo = 0; |
152 |
|
break; |
153 |
< |
case 'p': /* point */ |
154 |
< |
check(3,3); |
155 |
< |
ourview.vp[0] = atof(argv[++i]); |
71 |
< |
ourview.vp[1] = atof(argv[++i]); |
72 |
< |
ourview.vp[2] = atof(argv[++i]); |
153 |
> |
case 'f': /* foreground */ |
154 |
> |
check(3,NULL); |
155 |
> |
fillo = F_FORE; |
156 |
|
break; |
157 |
< |
case 'd': /* direction */ |
158 |
< |
check(3,3); |
159 |
< |
ourview.vdir[0] = atof(argv[++i]); |
77 |
< |
ourview.vdir[1] = atof(argv[++i]); |
78 |
< |
ourview.vdir[2] = atof(argv[++i]); |
157 |
> |
case 'b': /* background */ |
158 |
> |
check(3,NULL); |
159 |
> |
fillo = F_BACK; |
160 |
|
break; |
161 |
< |
case 'u': /* up */ |
162 |
< |
check(3,3); |
163 |
< |
ourview.vup[0] = atof(argv[++i]); |
83 |
< |
ourview.vup[1] = atof(argv[++i]); |
84 |
< |
ourview.vup[2] = atof(argv[++i]); |
161 |
> |
case 'a': /* all */ |
162 |
> |
check(3,NULL); |
163 |
> |
fillo = F_FORE|F_BACK; |
164 |
|
break; |
165 |
< |
case 'h': /* horizontal */ |
166 |
< |
check(3,1); |
167 |
< |
ourview.horiz = atof(argv[++i]); |
165 |
> |
case 's': /* sample */ |
166 |
> |
check(3,"i"); |
167 |
> |
fillsamp = atoi(argv[++an]); |
168 |
|
break; |
169 |
< |
case 'v': /* vertical */ |
170 |
< |
check(3,1); |
171 |
< |
ourview.vert = atof(argv[++i]); |
169 |
> |
case 'c': /* color */ |
170 |
> |
check(3,"fff"); |
171 |
> |
fillfunc = backfill; |
172 |
> |
setcolor(backcolor, atof(argv[an+1]), |
173 |
> |
atof(argv[an+2]), atof(argv[an+3])); |
174 |
> |
setcolr(backcolr, colval(backcolor,RED), |
175 |
> |
colval(backcolor,GRN), |
176 |
> |
colval(backcolor,BLU)); |
177 |
> |
an += 3; |
178 |
|
break; |
179 |
< |
case 'f': /* file */ |
180 |
< |
check(3,1); |
181 |
< |
gotvfile = viewfile(argv[++i], &ourview); |
182 |
< |
if (gotvfile < 0) { |
98 |
< |
perror(argv[i]); |
99 |
< |
exit(1); |
100 |
< |
} else if (gotvfile == 0) { |
101 |
< |
fprintf(stderr, "%s: bad view file\n", |
102 |
< |
argv[i]); |
103 |
< |
exit(1); |
104 |
< |
} |
179 |
> |
case 'z': /* z value */ |
180 |
> |
check(3,"f"); |
181 |
> |
fillfunc = backfill; |
182 |
> |
backz = atof(argv[++an]); |
183 |
|
break; |
184 |
+ |
case 'r': /* rtrace */ |
185 |
+ |
check(3,"s"); |
186 |
+ |
fillfunc = rcalfill; |
187 |
+ |
calstart(RTCOM, argv[++an]); |
188 |
+ |
break; |
189 |
|
default: |
190 |
|
goto badopt; |
191 |
|
} |
192 |
|
break; |
193 |
+ |
case 'z': /* z file */ |
194 |
+ |
check(2,"s"); |
195 |
+ |
zfile = argv[++an]; |
196 |
+ |
break; |
197 |
+ |
case 'x': /* x resolution */ |
198 |
+ |
check(2,"i"); |
199 |
+ |
hresolu = atoi(argv[++an]); |
200 |
+ |
break; |
201 |
+ |
case 'y': /* y resolution */ |
202 |
+ |
check(2,"i"); |
203 |
+ |
vresolu = atoi(argv[++an]); |
204 |
+ |
break; |
205 |
+ |
case 'p': /* pixel aspect */ |
206 |
+ |
if (argv[an][2] != 'a') |
207 |
+ |
goto badopt; |
208 |
+ |
check(3,"f"); |
209 |
+ |
pixaspect = atof(argv[++an]); |
210 |
+ |
break; |
211 |
+ |
case 'v': /* view file */ |
212 |
+ |
if (argv[an][2] != 'f') |
213 |
+ |
goto badopt; |
214 |
+ |
check(3,"s"); |
215 |
+ |
gotvfile = viewfile(argv[++an], &ourview, NULL); |
216 |
+ |
if (gotvfile < 0) |
217 |
+ |
syserror(argv[an]); |
218 |
+ |
else if (gotvfile == 0) { |
219 |
+ |
fprintf(stderr, "%s: bad view file\n", |
220 |
+ |
argv[an]); |
221 |
+ |
exit(1); |
222 |
+ |
} |
223 |
+ |
break; |
224 |
|
default: |
225 |
|
badopt: |
226 |
< |
fprintf(stderr, "%s: unknown option '%s'\n", |
227 |
< |
progname, argv[i]); |
228 |
< |
exit(1); |
226 |
> |
fprintf(stderr, "%s: command line error at '%s'\n", |
227 |
> |
progname, argv[an]); |
228 |
> |
goto userr; |
229 |
|
} |
230 |
+ |
} |
231 |
|
/* check arguments */ |
232 |
< |
if (argc-i < 2 || (argc-i)%2) { |
233 |
< |
fprintf(stderr, "Usage: %s [view args] pfile zfile ..\n", |
234 |
< |
progname); |
235 |
< |
exit(1); |
232 |
> |
if ((argc-an)%2) |
233 |
> |
goto userr; |
234 |
> |
if (fillsamp == 1) |
235 |
> |
fillo &= ~F_BACK; |
236 |
> |
if (doavg < 0) |
237 |
> |
doavg = (argc-an) > 2; |
238 |
> |
if (expcomp != NULL) { |
239 |
> |
if ((expcomp[0] == '+') | (expcomp[0] == '-')) { |
240 |
> |
expadj = atof(expcomp) + (expcomp[0]=='+' ? .5 : -.5); |
241 |
> |
if (doavg | doblur) |
242 |
> |
rexpadj = pow(2.0, atof(expcomp)); |
243 |
> |
else |
244 |
> |
rexpadj = pow(2.0, (double)expadj); |
245 |
> |
} else { |
246 |
> |
if (!isflt(expcomp)) |
247 |
> |
goto userr; |
248 |
> |
rexpadj = atof(expcomp); |
249 |
> |
expadj = log(rexpadj)/LOG2 + (rexpadj>1 ? .5 : -.5); |
250 |
> |
if (!(doavg | doblur)) |
251 |
> |
rexpadj = pow(2.0, (double)expadj); |
252 |
> |
} |
253 |
|
} |
254 |
|
/* set view */ |
255 |
< |
if (err = setview(&ourview)) { |
256 |
< |
fprintf(stderr, "%s: %s\n", progname, err); |
255 |
> |
if (nextview(doblur ? stdin : (FILE *)NULL) == EOF) { |
256 |
> |
fprintf(stderr, "%s: no view on standard input!\n", |
257 |
> |
progname); |
258 |
|
exit(1); |
259 |
|
} |
260 |
+ |
normaspect(viewaspect(&ourview), &pixaspect, &hresolu, &vresolu); |
261 |
|
/* allocate frame */ |
262 |
< |
ourpict = (COLR *)calloc(ourview.hresolu*ourview.vresolu,sizeof(COLR)); |
263 |
< |
ourzbuf = (float *)calloc(ourview.hresolu*ourview.vresolu,sizeof(float)); |
264 |
< |
if (ourpict == NULL || ourzbuf == NULL) { |
265 |
< |
perror(progname); |
266 |
< |
exit(1); |
262 |
> |
if (doavg) { |
263 |
> |
ourspict = (COLOR *)bmalloc(hresolu*vresolu*sizeof(COLOR)); |
264 |
> |
ourweigh = (float *)bmalloc(hresolu*vresolu*sizeof(float)); |
265 |
> |
if ((ourspict == NULL) | (ourweigh == NULL)) |
266 |
> |
syserror(progname); |
267 |
> |
} else { |
268 |
> |
ourpict = (COLR *)bmalloc(hresolu*vresolu*sizeof(COLR)); |
269 |
> |
if (ourpict == NULL) |
270 |
> |
syserror(progname); |
271 |
|
} |
272 |
< |
/* get input */ |
273 |
< |
for ( ; i < argc; i += 2) |
274 |
< |
addpicture(argv[i], argv[i+1]); |
275 |
< |
/* fill in spaces */ |
276 |
< |
fillpicture(); |
272 |
> |
if (doblur) { |
273 |
> |
ourbpict = (COLOR *)bmalloc(hresolu*vresolu*sizeof(COLOR)); |
274 |
> |
if (ourbpict == NULL) |
275 |
> |
syserror(progname); |
276 |
> |
} |
277 |
> |
ourzbuf = (float *)bmalloc(hresolu*vresolu*sizeof(float)); |
278 |
> |
if (ourzbuf == NULL) |
279 |
> |
syserror(progname); |
280 |
> |
/* new header */ |
281 |
> |
newheader("RADIANCE", stdout); |
282 |
> |
fputnow(stdout); |
283 |
> |
/* run pictures */ |
284 |
> |
do { |
285 |
> |
memset((char *)ourzbuf, '\0', hresolu*vresolu*sizeof(float)); |
286 |
> |
for (i = an; i < argc; i += 2) |
287 |
> |
addpicture(argv[i], argv[i+1]); |
288 |
> |
if (fillo&F_BACK) /* fill in spaces */ |
289 |
> |
backpicture(fillfunc, fillsamp); |
290 |
> |
else |
291 |
> |
fillpicture(fillfunc); |
292 |
> |
/* aft clipping */ |
293 |
> |
clipaft(); |
294 |
> |
} while (addblur() && nextview(stdin) != EOF); |
295 |
> |
/* close calculation */ |
296 |
> |
caldone(); |
297 |
|
/* add to header */ |
298 |
|
printargs(argc, argv, stdout); |
299 |
< |
if (gotvfile) { |
300 |
< |
printf(VIEWSTR); |
301 |
< |
fprintview(&ourview, stdout); |
302 |
< |
printf("\n"); |
299 |
> |
compavgview(); |
300 |
> |
if (doblur | gotvfile) { |
301 |
> |
fputs(VIEWSTR, stdout); |
302 |
> |
fprintview(&avgview, stdout); |
303 |
> |
putc('\n', stdout); |
304 |
|
} |
305 |
< |
printf("\n"); |
306 |
< |
/* write output */ |
305 |
> |
if ((pixaspect < .99) | (pixaspect > 1.01)) |
306 |
> |
fputaspect(pixaspect, stdout); |
307 |
> |
if (ourexp > 0) |
308 |
> |
ourexp *= rexpadj; |
309 |
> |
else |
310 |
> |
ourexp = rexpadj; |
311 |
> |
if ((ourexp < .995) | (ourexp > 1.005)) |
312 |
> |
fputexpos(ourexp, stdout); |
313 |
> |
if (strcmp(ourfmt, PICFMT)) /* print format if known */ |
314 |
> |
fputformat(ourfmt, stdout); |
315 |
> |
putc('\n', stdout); |
316 |
> |
/* write picture */ |
317 |
|
writepicture(); |
318 |
+ |
/* write z file */ |
319 |
+ |
if (zfile != NULL) |
320 |
+ |
writedistance(zfile); |
321 |
|
|
322 |
|
exit(0); |
323 |
+ |
userr: |
324 |
+ |
fprintf(stderr, |
325 |
+ |
"Usage: %s [view opts][-t eps][-z zout][-e spec][-B][-a|-q][-fT][-n] pfile zspec ..\n", |
326 |
+ |
progname); |
327 |
+ |
exit(1); |
328 |
|
#undef check |
329 |
|
} |
330 |
|
|
331 |
|
|
332 |
< |
headline(s) /* process header string */ |
333 |
< |
char *s; |
332 |
> |
static int |
333 |
> |
headline( /* process header string */ |
334 |
> |
char *s, |
335 |
> |
void *p |
336 |
> |
) |
337 |
|
{ |
338 |
< |
static char *altname[] = {"rview","rpict","pinterp",VIEWSTR,NULL}; |
159 |
< |
register char **an; |
338 |
> |
char fmt[32]; |
339 |
|
|
340 |
< |
printf("\t%s", s); |
341 |
< |
|
342 |
< |
for (an = altname; *an != NULL; an++) |
343 |
< |
if (!strncmp(*an, s, strlen(*an))) { |
344 |
< |
if (sscanview(&theirview, s+strlen(*an)) == 0) |
345 |
< |
gotview++; |
346 |
< |
break; |
347 |
< |
} |
340 |
> |
if (isheadid(s)) |
341 |
> |
return(0); |
342 |
> |
if (formatval(fmt, s)) { |
343 |
> |
if (globmatch(ourfmt, fmt)) { |
344 |
> |
wrongformat = 0; |
345 |
> |
strcpy(ourfmt, fmt); |
346 |
> |
} else |
347 |
> |
wrongformat = 1; |
348 |
> |
return(0); |
349 |
> |
} |
350 |
> |
if (nvavg < 2) { |
351 |
> |
putc('\t', stdout); |
352 |
> |
fputs(s, stdout); |
353 |
> |
} |
354 |
> |
if (isexpos(s)) { |
355 |
> |
theirexp *= exposval(s); |
356 |
> |
return(0); |
357 |
> |
} |
358 |
> |
if (isview(s) && sscanview(&theirview, s) > 0) |
359 |
> |
gotview++; |
360 |
> |
return(0); |
361 |
|
} |
362 |
|
|
363 |
|
|
364 |
< |
addpicture(pfile, zfile) /* add picture to output */ |
365 |
< |
char *pfile, *zfile; |
364 |
> |
nextview(fp) /* get and set next view */ |
365 |
> |
FILE *fp; |
366 |
|
{ |
367 |
< |
FILE *pfp, *zfp; |
176 |
< |
COLR *scanin; |
177 |
< |
float *zin; |
367 |
> |
char linebuf[256]; |
368 |
|
char *err; |
369 |
< |
int xres, yres; |
370 |
< |
int y; |
371 |
< |
/* open input files */ |
372 |
< |
if ((pfp = fopen(pfile, "r")) == NULL) { |
373 |
< |
perror(pfile); |
374 |
< |
exit(1); |
369 |
> |
register int i; |
370 |
> |
|
371 |
> |
if (fp != NULL) { |
372 |
> |
do /* get new view */ |
373 |
> |
if (fgets(linebuf, sizeof(linebuf), fp) == NULL) |
374 |
> |
return(EOF); |
375 |
> |
while (!isview(linebuf) || !sscanview(&ourview, linebuf)); |
376 |
|
} |
377 |
< |
if ((zfp = fopen(zfile, "r")) == NULL) { |
378 |
< |
perror(zfile); |
377 |
> |
/* set new view */ |
378 |
> |
if ((err = setview(&ourview)) != NULL) { |
379 |
> |
fprintf(stderr, "%s: %s\n", progname, err); |
380 |
|
exit(1); |
381 |
|
} |
382 |
< |
/* get header and view */ |
383 |
< |
printf("%s:\n", pfile); |
382 |
> |
if (!nvavg) { /* first view */ |
383 |
> |
avgview = ourview; |
384 |
> |
return(nvavg++); |
385 |
> |
} |
386 |
> |
/* add to average view */ |
387 |
> |
for (i = 0; i < 3; i++) { |
388 |
> |
avgview.vp[i] += ourview.vp[i]; |
389 |
> |
avgview.vdir[i] += ourview.vdir[i]; |
390 |
> |
avgview.vup[i] += ourview.vup[i]; |
391 |
> |
} |
392 |
> |
avgview.horiz += ourview.horiz; |
393 |
> |
avgview.vert += ourview.vert; |
394 |
> |
avgview.hoff += ourview.hoff; |
395 |
> |
avgview.voff += ourview.voff; |
396 |
> |
avgview.vfore += ourview.vfore; |
397 |
> |
avgview.vaft += ourview.vaft; |
398 |
> |
return(nvavg++); |
399 |
> |
} |
400 |
> |
|
401 |
> |
|
402 |
> |
compavgview() /* compute average view */ |
403 |
> |
{ |
404 |
> |
register int i; |
405 |
> |
double f; |
406 |
> |
|
407 |
> |
if (nvavg < 2) |
408 |
> |
return; |
409 |
> |
f = 1.0/nvavg; |
410 |
> |
for (i = 0; i < 3; i++) { |
411 |
> |
avgview.vp[i] *= f; |
412 |
> |
avgview.vdir[i] *= f; |
413 |
> |
avgview.vup[i] *= f; |
414 |
> |
} |
415 |
> |
avgview.horiz *= f; |
416 |
> |
avgview.vert *= f; |
417 |
> |
avgview.hoff *= f; |
418 |
> |
avgview.voff *= f; |
419 |
> |
avgview.vfore *= f; |
420 |
> |
avgview.vaft *= f; |
421 |
> |
if (setview(&avgview) != NULL) /* in case of emergency... */ |
422 |
> |
avgview = ourview; |
423 |
> |
pixaspect = viewaspect(&avgview) * hresolu / vresolu; |
424 |
> |
} |
425 |
> |
|
426 |
> |
|
427 |
> |
addpicture(pfile, zspec) /* add picture to output */ |
428 |
> |
char *pfile, *zspec; |
429 |
> |
{ |
430 |
> |
FILE *pfp; |
431 |
> |
int zfd; |
432 |
> |
char *err; |
433 |
> |
COLR *scanin; |
434 |
> |
float *zin; |
435 |
> |
struct position *plast; |
436 |
> |
struct bound *xlim, ylim; |
437 |
> |
int y; |
438 |
> |
/* open picture file */ |
439 |
> |
if ((pfp = fopen(pfile, "r")) == NULL) |
440 |
> |
syserror(pfile); |
441 |
> |
/* get header with exposure and view */ |
442 |
> |
theirexp = 1.0; |
443 |
> |
theirview = stdview; |
444 |
|
gotview = 0; |
445 |
< |
getheader(pfp, headline); |
446 |
< |
if (!gotview || fgetresolu(&xres, &yres, pfp) != (YMAJOR|YDECR)) { |
447 |
< |
fprintf(stderr, "%s: picture view error\n", pfile); |
445 |
> |
if (nvavg < 2) |
446 |
> |
printf("%s:\n", pfile); |
447 |
> |
getheader(pfp, headline, NULL); |
448 |
> |
if (wrongformat || !gotview || !fgetsresolu(&tresolu, pfp)) { |
449 |
> |
fprintf(stderr, "%s: picture format error\n", pfile); |
450 |
|
exit(1); |
451 |
|
} |
452 |
< |
theirview.hresolu = xres; |
453 |
< |
theirview.vresolu = yres; |
454 |
< |
if (err = setview(&theirview)) { |
452 |
> |
if (ourexp <= 0) |
453 |
> |
ourexp = theirexp; |
454 |
> |
else if (ABS(theirexp-ourexp) > .01*ourexp) |
455 |
> |
fprintf(stderr, "%s: different exposure (warning)\n", pfile); |
456 |
> |
if ( (err = setview(&theirview)) ) { |
457 |
|
fprintf(stderr, "%s: %s\n", pfile, err); |
458 |
|
exit(1); |
459 |
|
} |
460 |
|
/* compute transformation */ |
461 |
< |
pixform(theirs2ours, &theirview, &ourview); |
462 |
< |
/* allocate scanlines */ |
463 |
< |
scanin = (COLR *)malloc(xres*sizeof(COLR)); |
464 |
< |
zin = (float *)malloc(xres*sizeof(float)); |
465 |
< |
if (scanin == NULL || zin == NULL) { |
466 |
< |
perror(progname); |
467 |
< |
exit(1); |
461 |
> |
hasmatrix = pixform(theirs2ours, &theirview, &ourview); |
462 |
> |
/* get z specification or file */ |
463 |
> |
zin = (float *)malloc(scanlen(&tresolu)*sizeof(float)); |
464 |
> |
if (zin == NULL) |
465 |
> |
syserror(progname); |
466 |
> |
if ((zfd = open(zspec, O_RDONLY)) == -1) { |
467 |
> |
double zvalue; |
468 |
> |
register int x; |
469 |
> |
if (!isflt(zspec) || (zvalue = atof(zspec)) <= 0.0) |
470 |
> |
syserror(zspec); |
471 |
> |
for (x = scanlen(&tresolu); x-- > 0; ) |
472 |
> |
zin[x] = zvalue; |
473 |
|
} |
474 |
< |
/* load image */ |
475 |
< |
for (y = yres-1; y >= 0; y--) { |
476 |
< |
if (freadcolrs(scanin, xres, pfp) < 0) { |
474 |
> |
/* compute transferrable perimeter */ |
475 |
> |
xlim = (struct bound *)malloc(numscans(&tresolu)*sizeof(struct bound)); |
476 |
> |
if (xlim == NULL) |
477 |
> |
syserror(progname); |
478 |
> |
if (!getperim(xlim, &ylim, zin, zfd)) { /* overlapping area? */ |
479 |
> |
free((void *)zin); |
480 |
> |
free((void *)xlim); |
481 |
> |
if (zfd != -1) |
482 |
> |
close(zfd); |
483 |
> |
fclose(pfp); |
484 |
> |
return; |
485 |
> |
} |
486 |
> |
/* allocate scanlines */ |
487 |
> |
scanin = (COLR *)malloc(scanlen(&tresolu)*sizeof(COLR)); |
488 |
> |
plast = (struct position *)calloc(scanlen(&tresolu), |
489 |
> |
sizeof(struct position)); |
490 |
> |
if ((scanin == NULL) | (plast == NULL)) |
491 |
> |
syserror(progname); |
492 |
> |
/* skip to starting point */ |
493 |
> |
for (y = 0; y < ylim.min; y++) |
494 |
> |
if (freadcolrs(scanin, scanlen(&tresolu), pfp) < 0) { |
495 |
|
fprintf(stderr, "%s: read error\n", pfile); |
496 |
|
exit(1); |
497 |
|
} |
498 |
< |
if (fread(zin, sizeof(float), xres, zfp) < xres) { |
499 |
< |
fprintf(stderr, "%s: read error\n", zfile); |
498 |
> |
if (zfd != -1 && lseek(zfd, |
499 |
> |
(off_t)ylim.min*scanlen(&tresolu)*sizeof(float), |
500 |
> |
SEEK_SET) < 0) |
501 |
> |
syserror(zspec); |
502 |
> |
/* load image */ |
503 |
> |
for (y = ylim.min; y <= ylim.max; y++) { |
504 |
> |
if (freadcolrs(scanin, scanlen(&tresolu), pfp) < 0) { |
505 |
> |
fprintf(stderr, "%s: read error\n", pfile); |
506 |
|
exit(1); |
507 |
|
} |
508 |
< |
addscanline(y, scanin, zin); |
508 |
> |
if (zfd != -1 && read(zfd, (char *)zin, |
509 |
> |
scanlen(&tresolu)*sizeof(float)) |
510 |
> |
< scanlen(&tresolu)*sizeof(float)) |
511 |
> |
syserror(zspec); |
512 |
> |
addscanline(xlim+y, y, scanin, zin, plast); |
513 |
|
} |
514 |
|
/* clean up */ |
515 |
< |
free((char *)scanin); |
516 |
< |
free((char *)zin); |
515 |
> |
free((void *)xlim); |
516 |
> |
free((void *)scanin); |
517 |
> |
free((void *)zin); |
518 |
> |
free((void *)plast); |
519 |
|
fclose(pfp); |
520 |
< |
fclose(zfp); |
520 |
> |
if (zfd != -1) |
521 |
> |
close(zfd); |
522 |
|
} |
523 |
|
|
524 |
|
|
525 |
|
pixform(xfmat, vw1, vw2) /* compute view1 to view2 matrix */ |
526 |
< |
register double xfmat[4][4]; |
526 |
> |
register MAT4 xfmat; |
527 |
|
register VIEW *vw1, *vw2; |
528 |
|
{ |
529 |
|
double m4t[4][4]; |
530 |
|
|
531 |
+ |
if ((vw1->type != VT_PER) & (vw1->type != VT_PAR)) |
532 |
+ |
return(0); |
533 |
+ |
if ((vw2->type != VT_PER) & (vw2->type != VT_PAR)) |
534 |
+ |
return(0); |
535 |
|
setident4(xfmat); |
536 |
< |
xfmat[0][0] = vw1->vhinc[0]; |
537 |
< |
xfmat[0][1] = vw1->vhinc[1]; |
538 |
< |
xfmat[0][2] = vw1->vhinc[2]; |
539 |
< |
xfmat[1][0] = vw1->vvinc[0]; |
540 |
< |
xfmat[1][1] = vw1->vvinc[1]; |
541 |
< |
xfmat[1][2] = vw1->vvinc[2]; |
536 |
> |
xfmat[0][0] = vw1->hvec[0]; |
537 |
> |
xfmat[0][1] = vw1->hvec[1]; |
538 |
> |
xfmat[0][2] = vw1->hvec[2]; |
539 |
> |
xfmat[1][0] = vw1->vvec[0]; |
540 |
> |
xfmat[1][1] = vw1->vvec[1]; |
541 |
> |
xfmat[1][2] = vw1->vvec[2]; |
542 |
|
xfmat[2][0] = vw1->vdir[0]; |
543 |
|
xfmat[2][1] = vw1->vdir[1]; |
544 |
|
xfmat[2][2] = vw1->vdir[2]; |
546 |
|
xfmat[3][1] = vw1->vp[1]; |
547 |
|
xfmat[3][2] = vw1->vp[2]; |
548 |
|
setident4(m4t); |
549 |
< |
m4t[0][0] = vw2->vhinc[0]/vw2->vhn2; |
550 |
< |
m4t[1][0] = vw2->vhinc[1]/vw2->vhn2; |
551 |
< |
m4t[2][0] = vw2->vhinc[2]/vw2->vhn2; |
552 |
< |
m4t[3][0] = -DOT(vw2->vp,vw2->vhinc)/vw2->vhn2; |
553 |
< |
m4t[0][1] = vw2->vvinc[0]/vw2->vvn2; |
554 |
< |
m4t[1][1] = vw2->vvinc[1]/vw2->vvn2; |
555 |
< |
m4t[2][1] = vw2->vvinc[2]/vw2->vvn2; |
556 |
< |
m4t[3][1] = -DOT(vw2->vp,vw2->vvinc)/vw2->vvn2; |
549 |
> |
m4t[0][0] = vw2->hvec[0]/vw2->hn2; |
550 |
> |
m4t[1][0] = vw2->hvec[1]/vw2->hn2; |
551 |
> |
m4t[2][0] = vw2->hvec[2]/vw2->hn2; |
552 |
> |
m4t[3][0] = -DOT(vw2->vp,vw2->hvec)/vw2->hn2; |
553 |
> |
m4t[0][1] = vw2->vvec[0]/vw2->vn2; |
554 |
> |
m4t[1][1] = vw2->vvec[1]/vw2->vn2; |
555 |
> |
m4t[2][1] = vw2->vvec[2]/vw2->vn2; |
556 |
> |
m4t[3][1] = -DOT(vw2->vp,vw2->vvec)/vw2->vn2; |
557 |
|
m4t[0][2] = vw2->vdir[0]; |
558 |
|
m4t[1][2] = vw2->vdir[1]; |
559 |
|
m4t[2][2] = vw2->vdir[2]; |
560 |
|
m4t[3][2] = -DOT(vw2->vp,vw2->vdir); |
561 |
|
multmat4(xfmat, xfmat, m4t); |
562 |
+ |
return(1); |
563 |
|
} |
564 |
|
|
565 |
|
|
566 |
< |
addscanline(y, pline, zline) /* add scanline to output */ |
566 |
> |
addscanline(xl, y, pline, zline, lasty) /* add scanline to output */ |
567 |
> |
struct bound *xl; |
568 |
|
int y; |
569 |
|
COLR *pline; |
570 |
|
float *zline; |
571 |
+ |
struct position *lasty; /* input/output */ |
572 |
|
{ |
573 |
< |
extern double sqrt(); |
574 |
< |
double pos[3]; |
573 |
> |
FVECT pos; |
574 |
> |
struct position lastx, newpos; |
575 |
> |
double wt; |
576 |
|
register int x; |
277 |
– |
register int xpos, ypos; |
577 |
|
|
578 |
< |
for (x = 0; x < theirview.hresolu; x++) { |
579 |
< |
pos[0] = x - .5*(theirview.hresolu-1); |
580 |
< |
pos[1] = y - .5*(theirview.vresolu-1); |
578 |
> |
lastx.z = 0; |
579 |
> |
for (x = xl->max; x >= xl->min; x--) { |
580 |
> |
pix2loc(pos, &tresolu, x, y); |
581 |
|
pos[2] = zline[x]; |
582 |
+ |
if ((wt = movepixel(pos)) <= FTINY) { |
583 |
+ |
lasty[x].z = lastx.z = 0; /* mark invalid */ |
584 |
+ |
continue; |
585 |
+ |
} |
586 |
+ |
/* add pixel to our image */ |
587 |
+ |
newpos.x = pos[0] * hresolu; |
588 |
+ |
newpos.y = pos[1] * vresolu; |
589 |
+ |
newpos.z = zline[x]; |
590 |
+ |
addpixel(&newpos, &lastx, &lasty[x], pline[x], wt, pos[2]); |
591 |
+ |
lasty[x].x = lastx.x = newpos.x; |
592 |
+ |
lasty[x].y = lastx.y = newpos.y; |
593 |
+ |
lasty[x].z = lastx.z = newpos.z; |
594 |
+ |
} |
595 |
+ |
} |
596 |
+ |
|
597 |
+ |
|
598 |
+ |
addpixel(p0, p1, p2, pix, w, z) /* fill in pixel parallelogram */ |
599 |
+ |
struct position *p0, *p1, *p2; |
600 |
+ |
COLR pix; |
601 |
+ |
double w; |
602 |
+ |
double z; |
603 |
+ |
{ |
604 |
+ |
double zt = 2.*zeps*p0->z; /* threshold */ |
605 |
+ |
COLOR pval; /* converted+weighted pixel */ |
606 |
+ |
int s1x, s1y, s2x, s2y; /* step sizes */ |
607 |
+ |
int l1, l2, c1, c2; /* side lengths and counters */ |
608 |
+ |
int p1isy; /* p0p1 along y? */ |
609 |
+ |
int x1, y1; /* p1 position */ |
610 |
+ |
register int x, y; /* final position */ |
611 |
+ |
|
612 |
+ |
/* compute vector p0p1 */ |
613 |
+ |
if (fillo&F_FORE && ABS(p1->z-p0->z) <= zt) { |
614 |
+ |
s1x = p1->x - p0->x; |
615 |
+ |
s1y = p1->y - p0->y; |
616 |
+ |
l1 = ABS(s1x); |
617 |
+ |
if ( (p1isy = (ABS(s1y) > l1)) ) |
618 |
+ |
l1 = ABS(s1y); |
619 |
+ |
else if (l1 < 1) |
620 |
+ |
l1 = 1; |
621 |
+ |
} else { |
622 |
+ |
l1 = s1x = s1y = 1; |
623 |
+ |
p1isy = -1; |
624 |
+ |
} |
625 |
+ |
/* compute vector p0p2 */ |
626 |
+ |
if (fillo&F_FORE && ABS(p2->z-p0->z) <= zt) { |
627 |
+ |
s2x = p2->x - p0->x; |
628 |
+ |
s2y = p2->y - p0->y; |
629 |
+ |
if (p1isy == 1) |
630 |
+ |
l2 = ABS(s2x); |
631 |
+ |
else { |
632 |
+ |
l2 = ABS(s2y); |
633 |
+ |
if (p1isy != 0 && ABS(s2x) > l2) |
634 |
+ |
l2 = ABS(s2x); |
635 |
+ |
} |
636 |
+ |
if (l2 < 1) |
637 |
+ |
l2 = 1; |
638 |
+ |
} else |
639 |
+ |
l2 = s2x = s2y = 1; |
640 |
+ |
/* fill the parallelogram */ |
641 |
+ |
if (averaging) { |
642 |
+ |
colr_color(pval, pix); |
643 |
+ |
scalecolor(pval, w); |
644 |
+ |
} |
645 |
+ |
for (c1 = l1; c1-- > 0; ) { |
646 |
+ |
x1 = p0->x + c1*s1x/l1; |
647 |
+ |
y1 = p0->y + c1*s1y/l1; |
648 |
+ |
for (c2 = l2; c2-- > 0; ) { |
649 |
+ |
x = x1 + c2*s2x/l2; |
650 |
+ |
if ((x < 0) | (x >= hresolu)) |
651 |
+ |
continue; |
652 |
+ |
y = y1 + c2*s2y/l2; |
653 |
+ |
if ((y < 0) | (y >= vresolu)) |
654 |
+ |
continue; |
655 |
+ |
if (averaging) { |
656 |
+ |
if (zscan(y)[x] <= 0 || zscan(y)[x]-z |
657 |
+ |
> zeps*zscan(y)[x]) { |
658 |
+ |
copycolor(sscan(y)[x], pval); |
659 |
+ |
wscan(y)[x] = w; |
660 |
+ |
zscan(y)[x] = z; |
661 |
+ |
} else if (z-zscan(y)[x] <= zeps*zscan(y)[x]) { |
662 |
+ |
addcolor(sscan(y)[x], pval); |
663 |
+ |
wscan(y)[x] += w; |
664 |
+ |
} |
665 |
+ |
} else if (zscan(y)[x] <= 0 || zscan(y)[x]-z |
666 |
+ |
> zeps*zscan(y)[x]) { |
667 |
+ |
copycolr(pscan(y)[x], pix); |
668 |
+ |
zscan(y)[x] = z; |
669 |
+ |
} |
670 |
+ |
} |
671 |
+ |
} |
672 |
+ |
} |
673 |
+ |
|
674 |
+ |
|
675 |
+ |
double |
676 |
+ |
movepixel(pos) /* reposition image point */ |
677 |
+ |
register FVECT pos; |
678 |
+ |
{ |
679 |
+ |
FVECT pt, tdir, odir; |
680 |
+ |
double d; |
681 |
+ |
|
682 |
+ |
if (pos[2] <= 0) /* empty pixel */ |
683 |
+ |
return(0); |
684 |
+ |
if (usematrix) { |
685 |
+ |
pos[0] += theirview.hoff - .5; |
686 |
+ |
pos[1] += theirview.voff - .5; |
687 |
+ |
if (normdist & (theirview.type == VT_PER)) |
688 |
+ |
d = sqrt(1. + pos[0]*pos[0]*theirview.hn2 |
689 |
+ |
+ pos[1]*pos[1]*theirview.vn2); |
690 |
+ |
else |
691 |
+ |
d = 1.; |
692 |
+ |
pos[2] += d*theirview.vfore; |
693 |
|
if (theirview.type == VT_PER) { |
694 |
< |
pos[2] /= sqrt( 1. |
285 |
< |
+ pos[0]*pos[0]*theirview.vhn2 |
286 |
< |
+ pos[1]*pos[1]*theirview.vvn2 ); |
694 |
> |
pos[2] /= d; |
695 |
|
pos[0] *= pos[2]; |
696 |
|
pos[1] *= pos[2]; |
697 |
|
} |
698 |
|
multp3(pos, pos, theirs2ours); |
699 |
< |
if (pos[2] <= 0.0) |
700 |
< |
continue; |
699 |
> |
if (pos[2] <= ourview.vfore) |
700 |
> |
return(0); |
701 |
|
if (ourview.type == VT_PER) { |
702 |
|
pos[0] /= pos[2]; |
703 |
|
pos[1] /= pos[2]; |
704 |
|
} |
705 |
< |
pos[0] += .5*ourview.hresolu; |
706 |
< |
pos[1] += .5*ourview.vresolu; |
707 |
< |
if (pos[0] < 0 || pos[0] > ourview.hresolu |
708 |
< |
|| pos[1] < 0 || pos[1] > ourview.vresolu) |
709 |
< |
continue; |
710 |
< |
/* check current value at pos */ |
711 |
< |
xpos = pos[0]; |
712 |
< |
ypos = pos[1]; |
713 |
< |
if (zscan(ypos)[xpos] <= 0.0 |
714 |
< |
|| zscan(ypos)[xpos] - pos[2] |
715 |
< |
> zeps*zscan(ypos)[xpos]) { |
716 |
< |
zscan(ypos)[xpos] = pos[2]; |
717 |
< |
copycolr(pscan(ypos)[xpos], pline[x]); |
705 |
> |
pos[0] += .5 - ourview.hoff; |
706 |
> |
pos[1] += .5 - ourview.voff; |
707 |
> |
pos[2] -= ourview.vfore; |
708 |
> |
} else { |
709 |
> |
if (viewray(pt, tdir, &theirview, pos[0], pos[1]) < -FTINY) |
710 |
> |
return(0); |
711 |
> |
if ((!normdist) & (theirview.type == VT_PER)) /* adjust */ |
712 |
> |
pos[2] *= sqrt(1. + pos[0]*pos[0]*theirview.hn2 |
713 |
> |
+ pos[1]*pos[1]*theirview.vn2); |
714 |
> |
pt[0] += tdir[0]*pos[2]; |
715 |
> |
pt[1] += tdir[1]*pos[2]; |
716 |
> |
pt[2] += tdir[2]*pos[2]; |
717 |
> |
viewloc(pos, &ourview, pt); |
718 |
> |
if (pos[2] <= 0) |
719 |
> |
return(0); |
720 |
> |
} |
721 |
> |
if ((pos[0] < 0) | (pos[0] >= 1-FTINY) | (pos[1] < 0) | (pos[1] >= 1-FTINY)) |
722 |
> |
return(0); |
723 |
> |
if (!averaging) |
724 |
> |
return(1); |
725 |
> |
/* compute pixel weight */ |
726 |
> |
if (ourview.type == VT_PAR) { |
727 |
> |
d = DOT(ourview.vdir,tdir); |
728 |
> |
d = 1. - d*d; |
729 |
> |
} else { |
730 |
> |
VSUB(odir, pt, ourview.vp); |
731 |
> |
d = DOT(odir,tdir); |
732 |
> |
d = 1. - d*d/DOT(odir,odir); |
733 |
> |
} |
734 |
> |
if (d <= 1./MAXWT/MAXWT) |
735 |
> |
return(MAXWT); /* clip to maximum weight */ |
736 |
> |
return(1./sqrt(d)); |
737 |
> |
} |
738 |
> |
|
739 |
> |
|
740 |
> |
getperim(xl, yl, zline, zfd) /* compute overlapping image area */ |
741 |
> |
register struct bound *xl; |
742 |
> |
struct bound *yl; |
743 |
> |
float *zline; |
744 |
> |
int zfd; |
745 |
> |
{ |
746 |
> |
int step; |
747 |
> |
FVECT pos; |
748 |
> |
register int x, y; |
749 |
> |
/* set up step size */ |
750 |
> |
if (scanlen(&tresolu) < numscans(&tresolu)) |
751 |
> |
step = scanlen(&tresolu)/NSTEPS; |
752 |
> |
else |
753 |
> |
step = numscans(&tresolu)/NSTEPS; |
754 |
> |
if (step < MINSTEP) { /* not worth cropping? */ |
755 |
> |
yl->min = 0; |
756 |
> |
yl->max = numscans(&tresolu) - 1; |
757 |
> |
x = scanlen(&tresolu) - 1; |
758 |
> |
for (y = numscans(&tresolu); y--; ) { |
759 |
> |
xl[y].min = 0; |
760 |
> |
xl[y].max = x; |
761 |
|
} |
762 |
+ |
return(1); |
763 |
|
} |
764 |
+ |
yl->min = 32000; yl->max = 0; /* search for points on image */ |
765 |
+ |
for (y = step - 1; y < numscans(&tresolu); y += step) { |
766 |
+ |
if (zfd != -1) { |
767 |
+ |
if (lseek(zfd, (off_t)y*scanlen(&tresolu)*sizeof(float), |
768 |
+ |
SEEK_SET) < 0) |
769 |
+ |
syserror("lseek"); |
770 |
+ |
if (read(zfd, (char *)zline, |
771 |
+ |
scanlen(&tresolu)*sizeof(float)) |
772 |
+ |
< scanlen(&tresolu)*sizeof(float)) |
773 |
+ |
syserror("read"); |
774 |
+ |
} |
775 |
+ |
xl[y].min = 32000; xl[y].max = 0; /* x max */ |
776 |
+ |
for (x = scanlen(&tresolu); (x -= step) > 0; ) { |
777 |
+ |
pix2loc(pos, &tresolu, x, y); |
778 |
+ |
pos[2] = zline[x]; |
779 |
+ |
if (movepixel(pos) > FTINY) { |
780 |
+ |
xl[y].max = x + step - 1; |
781 |
+ |
xl[y].min = x - step + 1; /* x min */ |
782 |
+ |
if (xl[y].min < 0) |
783 |
+ |
xl[y].min = 0; |
784 |
+ |
for (x = step - 1; x < xl[y].max; x += step) { |
785 |
+ |
pix2loc(pos, &tresolu, x, y); |
786 |
+ |
pos[2] = zline[x]; |
787 |
+ |
if (movepixel(pos) > FTINY) { |
788 |
+ |
xl[y].min = x - step + 1; |
789 |
+ |
break; |
790 |
+ |
} |
791 |
+ |
} |
792 |
+ |
if (y < yl->min) /* y limits */ |
793 |
+ |
yl->min = y - step + 1; |
794 |
+ |
yl->max = y + step - 1; |
795 |
+ |
break; |
796 |
+ |
} |
797 |
+ |
} |
798 |
+ |
/* fill in between */ |
799 |
+ |
if (y < step) { |
800 |
+ |
xl[y-1].min = xl[y].min; |
801 |
+ |
xl[y-1].max = xl[y].max; |
802 |
+ |
} else { |
803 |
+ |
if (xl[y].min < xl[y-step].min) |
804 |
+ |
xl[y-1].min = xl[y].min; |
805 |
+ |
else |
806 |
+ |
xl[y-1].min = xl[y-step].min; |
807 |
+ |
if (xl[y].max > xl[y-step].max) |
808 |
+ |
xl[y-1].max = xl[y].max; |
809 |
+ |
else |
810 |
+ |
xl[y-1].max = xl[y-step].max; |
811 |
+ |
} |
812 |
+ |
for (x = 2; x < step; x++) |
813 |
+ |
*(xl+y-x) = *(xl+y-1); |
814 |
+ |
} |
815 |
+ |
if (yl->max >= numscans(&tresolu)) |
816 |
+ |
yl->max = numscans(&tresolu) - 1; |
817 |
+ |
y -= step; |
818 |
+ |
for (x = numscans(&tresolu) - 1; x > y; x--) /* fill bottom rows */ |
819 |
+ |
*(xl+x) = *(xl+y); |
820 |
+ |
return(yl->max >= yl->min); |
821 |
|
} |
822 |
|
|
823 |
|
|
824 |
< |
fillpicture() /* fill in empty spaces */ |
824 |
> |
backpicture(fill, samp) /* background fill algorithm */ |
825 |
> |
int (*fill)(); |
826 |
> |
int samp; |
827 |
|
{ |
828 |
|
int *yback, xback; |
829 |
|
int y; |
319 |
– |
COLR pfill; |
830 |
|
register int x, i; |
831 |
|
/* get back buffer */ |
832 |
< |
yback = (int *)malloc(ourview.hresolu*sizeof(int)); |
833 |
< |
if (yback == NULL) { |
834 |
< |
perror(progname); |
835 |
< |
return; |
326 |
< |
} |
327 |
< |
for (x = 0; x < ourview.hresolu; x++) |
832 |
> |
yback = (int *)malloc(hresolu*sizeof(int)); |
833 |
> |
if (yback == NULL) |
834 |
> |
syserror(progname); |
835 |
> |
for (x = 0; x < hresolu; x++) |
836 |
|
yback[x] = -2; |
837 |
+ |
/* |
838 |
+ |
* Xback and yback are the pixel locations of suitable |
839 |
+ |
* background values in each direction. |
840 |
+ |
* A value of -2 means unassigned, and -1 means |
841 |
+ |
* that there is no suitable background in this direction. |
842 |
+ |
*/ |
843 |
|
/* fill image */ |
844 |
< |
for (y = 0; y < ourview.vresolu; y++) { |
844 |
> |
for (y = 0; y < vresolu; y++) { |
845 |
|
xback = -2; |
846 |
< |
for (x = 0; x < ourview.hresolu; x++) |
847 |
< |
if (zscan(y)[x] <= 0.0) { /* empty pixel */ |
846 |
> |
for (x = 0; x < hresolu; x++) |
847 |
> |
if (zscan(y)[x] <= 0) { /* empty pixel */ |
848 |
> |
/* |
849 |
> |
* First, find background from above or below. |
850 |
> |
* (farthest assigned pixel) |
851 |
> |
*/ |
852 |
|
if (yback[x] == -2) { |
853 |
< |
for (i = y+1; i < ourview.vresolu; i++) |
854 |
< |
if (zscan(i)[x] > 0.0) |
853 |
> |
for (i = y+1; i < vresolu; i++) |
854 |
> |
if (zscan(i)[x] > 0) |
855 |
|
break; |
856 |
< |
if (i < ourview.vresolu |
856 |
> |
if (i < vresolu |
857 |
|
&& (y <= 0 || zscan(y-1)[x] < zscan(i)[x])) |
858 |
|
yback[x] = i; |
859 |
|
else |
860 |
|
yback[x] = y-1; |
861 |
|
} |
862 |
+ |
/* |
863 |
+ |
* Next, find background from left or right. |
864 |
+ |
*/ |
865 |
|
if (xback == -2) { |
866 |
< |
for (i = x+1; x < ourview.hresolu; i++) |
867 |
< |
if (zscan(y)[i] > 0.0) |
866 |
> |
for (i = x+1; i < hresolu; i++) |
867 |
> |
if (zscan(y)[i] > 0) |
868 |
|
break; |
869 |
< |
if (i < ourview.hresolu |
869 |
> |
if (i < hresolu |
870 |
|
&& (x <= 0 || zscan(y)[x-1] < zscan(y)[i])) |
871 |
|
xback = i; |
872 |
|
else |
873 |
|
xback = x-1; |
874 |
|
} |
875 |
+ |
/* |
876 |
+ |
* If we have no background for this pixel, |
877 |
+ |
* use the given fill function. |
878 |
+ |
*/ |
879 |
|
if (xback < 0 && yback[x] < 0) |
880 |
< |
continue; |
881 |
< |
if (yback[x] < 0 || ABS(x-xback) <= 1 |
880 |
> |
goto fillit; |
881 |
> |
/* |
882 |
> |
* Compare, and use the background that is |
883 |
> |
* farther, unless one of them is next to us. |
884 |
> |
* If the background is too distant, call |
885 |
> |
* the fill function. |
886 |
> |
*/ |
887 |
> |
if ( yback[x] < 0 |
888 |
> |
|| (xback >= 0 && ABS(x-xback) <= 1) |
889 |
|
|| ( ABS(y-yback[x]) > 1 |
890 |
< |
&& zscan(yback[x])[x] < zscan(y)[xback] )) |
891 |
< |
copycolr(pscan(y)[x],pscan(y)[xback]); |
892 |
< |
else |
893 |
< |
copycolr(pscan(y)[x],pscan(yback[x])[x]); |
890 |
> |
&& zscan(yback[x])[x] |
891 |
> |
< zscan(y)[xback] ) ) { |
892 |
> |
if (samp > 0 && ABS(x-xback) >= samp) |
893 |
> |
goto fillit; |
894 |
> |
if (averaging) { |
895 |
> |
copycolor(sscan(y)[x], |
896 |
> |
sscan(y)[xback]); |
897 |
> |
wscan(y)[x] = wscan(y)[xback]; |
898 |
> |
} else |
899 |
> |
copycolr(pscan(y)[x], |
900 |
> |
pscan(y)[xback]); |
901 |
> |
zscan(y)[x] = zscan(y)[xback]; |
902 |
> |
} else { |
903 |
> |
if (samp > 0 && ABS(y-yback[x]) > samp) |
904 |
> |
goto fillit; |
905 |
> |
if (averaging) { |
906 |
> |
copycolor(sscan(y)[x], |
907 |
> |
sscan(yback[x])[x]); |
908 |
> |
wscan(y)[x] = |
909 |
> |
wscan(yback[x])[x]; |
910 |
> |
} else |
911 |
> |
copycolr(pscan(y)[x], |
912 |
> |
pscan(yback[x])[x]); |
913 |
> |
zscan(y)[x] = zscan(yback[x])[x]; |
914 |
> |
} |
915 |
> |
continue; |
916 |
> |
fillit: |
917 |
> |
(*fill)(x,y); |
918 |
> |
if (fill == rcalfill) { /* use it */ |
919 |
> |
clearqueue(); |
920 |
> |
xback = x; |
921 |
> |
yback[x] = y; |
922 |
> |
} |
923 |
|
} else { /* full pixel */ |
924 |
|
yback[x] = -2; |
925 |
|
xback = -2; |
926 |
|
} |
927 |
|
} |
928 |
< |
free((char *)yback); |
928 |
> |
free((void *)yback); |
929 |
|
} |
930 |
|
|
931 |
|
|
932 |
< |
writepicture() /* write out picture */ |
932 |
> |
fillpicture(fill) /* paint in empty pixels using fill */ |
933 |
> |
int (*fill)(); |
934 |
|
{ |
935 |
+ |
register int x, y; |
936 |
+ |
|
937 |
+ |
for (y = 0; y < vresolu; y++) |
938 |
+ |
for (x = 0; x < hresolu; x++) |
939 |
+ |
if (zscan(y)[x] <= 0) |
940 |
+ |
(*fill)(x,y); |
941 |
+ |
if (fill == rcalfill) |
942 |
+ |
clearqueue(); |
943 |
+ |
} |
944 |
+ |
|
945 |
+ |
|
946 |
+ |
clipaft() /* perform aft clipping as indicated */ |
947 |
+ |
{ |
948 |
+ |
register int x, y; |
949 |
+ |
int adjtest = (ourview.type == VT_PER) & zisnorm; |
950 |
+ |
double tstdist; |
951 |
+ |
double yzn2, vx; |
952 |
+ |
|
953 |
+ |
if (ourview.vaft <= FTINY) |
954 |
+ |
return(0); |
955 |
+ |
tstdist = ourview.vaft - ourview.vfore; |
956 |
+ |
for (y = 0; y < vresolu; y++) { |
957 |
+ |
if (adjtest) { /* adjust test */ |
958 |
+ |
yzn2 = (y+.5)/vresolu + ourview.voff - .5; |
959 |
+ |
yzn2 = 1. + yzn2*yzn2*ourview.vn2; |
960 |
+ |
tstdist = (ourview.vaft - ourview.vfore)*sqrt(yzn2); |
961 |
+ |
} |
962 |
+ |
for (x = 0; x < hresolu; x++) |
963 |
+ |
if (zscan(y)[x] > tstdist) { |
964 |
+ |
if (adjtest) { |
965 |
+ |
vx = (x+.5)/hresolu + ourview.hoff - .5; |
966 |
+ |
if (zscan(y)[x] <= (ourview.vaft - |
967 |
+ |
ourview.vfore) * |
968 |
+ |
sqrt(vx*vx*ourview.hn2 + yzn2)) |
969 |
+ |
continue; |
970 |
+ |
} |
971 |
+ |
if (averaging) |
972 |
+ |
memset(sscan(y)[x], '\0', sizeof(COLOR)); |
973 |
+ |
else |
974 |
+ |
memset(pscan(y)[x], '\0', sizeof(COLR)); |
975 |
+ |
zscan(y)[x] = 0.0; |
976 |
+ |
} |
977 |
+ |
} |
978 |
+ |
return(1); |
979 |
+ |
} |
980 |
+ |
|
981 |
+ |
|
982 |
+ |
addblur() /* add to blurred picture */ |
983 |
+ |
{ |
984 |
+ |
COLOR cval; |
985 |
+ |
double d; |
986 |
+ |
register int i; |
987 |
+ |
|
988 |
+ |
if (!blurring) |
989 |
+ |
return(0); |
990 |
+ |
i = hresolu*vresolu; |
991 |
+ |
if (nvavg < 2) |
992 |
+ |
if (averaging) |
993 |
+ |
while (i--) { |
994 |
+ |
copycolor(ourbpict[i], ourspict[i]); |
995 |
+ |
d = 1.0/ourweigh[i]; |
996 |
+ |
scalecolor(ourbpict[i], d); |
997 |
+ |
} |
998 |
+ |
else |
999 |
+ |
while (i--) |
1000 |
+ |
colr_color(ourbpict[i], ourpict[i]); |
1001 |
+ |
else |
1002 |
+ |
if (averaging) |
1003 |
+ |
while (i--) { |
1004 |
+ |
copycolor(cval, ourspict[i]); |
1005 |
+ |
d = 1.0/ourweigh[i]; |
1006 |
+ |
scalecolor(cval, d); |
1007 |
+ |
addcolor(ourbpict[i], cval); |
1008 |
+ |
} |
1009 |
+ |
else |
1010 |
+ |
while (i--) { |
1011 |
+ |
colr_color(cval, ourpict[i]); |
1012 |
+ |
addcolor(ourbpict[i], cval); |
1013 |
+ |
} |
1014 |
+ |
/* print view */ |
1015 |
+ |
printf("VIEW%d:", nvavg); |
1016 |
+ |
fprintview(&ourview, stdout); |
1017 |
+ |
putchar('\n'); |
1018 |
+ |
return(1); |
1019 |
+ |
} |
1020 |
+ |
|
1021 |
+ |
|
1022 |
+ |
writepicture() /* write out picture (alters buffer) */ |
1023 |
+ |
{ |
1024 |
|
int y; |
1025 |
+ |
register int x; |
1026 |
+ |
double d; |
1027 |
|
|
1028 |
< |
fputresolu(YMAJOR|YDECR, ourview.hresolu, ourview.vresolu, stdout); |
1029 |
< |
for (y = ourview.vresolu-1; y >= 0; y--) |
1030 |
< |
if (fwritecolrs(pscan(y), ourview.hresolu, stdout) < 0) { |
1031 |
< |
perror(progname); |
1032 |
< |
exit(1); |
1028 |
> |
fprtresolu(hresolu, vresolu, stdout); |
1029 |
> |
for (y = vresolu-1; y >= 0; y--) |
1030 |
> |
if (blurring) { |
1031 |
> |
for (x = 0; x < hresolu; x++) { /* compute avg. */ |
1032 |
> |
d = rexpadj/nvavg; |
1033 |
> |
scalecolor(bscan(y)[x], d); |
1034 |
> |
} |
1035 |
> |
if (fwritescan(bscan(y), hresolu, stdout) < 0) |
1036 |
> |
syserror(progname); |
1037 |
> |
} else if (averaging) { |
1038 |
> |
for (x = 0; x < hresolu; x++) { /* average pixels */ |
1039 |
> |
d = rexpadj/wscan(y)[x]; |
1040 |
> |
scalecolor(sscan(y)[x], d); |
1041 |
> |
} |
1042 |
> |
if (fwritescan(sscan(y), hresolu, stdout) < 0) |
1043 |
> |
syserror(progname); |
1044 |
> |
} else { |
1045 |
> |
if (expadj) |
1046 |
> |
shiftcolrs(pscan(y), hresolu, expadj); |
1047 |
> |
if (fwritecolrs(pscan(y), hresolu, stdout) < 0) |
1048 |
> |
syserror(progname); |
1049 |
|
} |
1050 |
+ |
} |
1051 |
+ |
|
1052 |
+ |
|
1053 |
+ |
writedistance(fname) /* write out z file (alters buffer) */ |
1054 |
+ |
char *fname; |
1055 |
+ |
{ |
1056 |
+ |
int donorm = normdist & !zisnorm ? 1 : |
1057 |
+ |
(ourview.type == VT_PER) & !normdist & zisnorm ? -1 : 0; |
1058 |
+ |
int fd; |
1059 |
+ |
int y; |
1060 |
+ |
|
1061 |
+ |
if ((fd = open(fname, O_WRONLY|O_CREAT|O_TRUNC, 0666)) == -1) |
1062 |
+ |
syserror(fname); |
1063 |
+ |
for (y = vresolu-1; y >= 0; y--) { |
1064 |
+ |
if (donorm) { |
1065 |
+ |
double vx, yzn2, d; |
1066 |
+ |
register int x; |
1067 |
+ |
yzn2 = (y+.5)/vresolu + ourview.voff - .5; |
1068 |
+ |
yzn2 = 1. + yzn2*yzn2*ourview.vn2; |
1069 |
+ |
for (x = 0; x < hresolu; x++) { |
1070 |
+ |
vx = (x+.5)/hresolu + ourview.hoff - .5; |
1071 |
+ |
d = sqrt(vx*vx*ourview.hn2 + yzn2); |
1072 |
+ |
if (donorm > 0) |
1073 |
+ |
zscan(y)[x] *= d; |
1074 |
+ |
else |
1075 |
+ |
zscan(y)[x] /= d; |
1076 |
+ |
} |
1077 |
+ |
} |
1078 |
+ |
if (write(fd, (char *)zscan(y), hresolu*sizeof(float)) |
1079 |
+ |
< hresolu*sizeof(float)) |
1080 |
+ |
syserror(fname); |
1081 |
+ |
} |
1082 |
+ |
close(fd); |
1083 |
+ |
} |
1084 |
+ |
|
1085 |
+ |
|
1086 |
+ |
backfill(x, y) /* fill pixel with background */ |
1087 |
+ |
int x, y; |
1088 |
+ |
{ |
1089 |
+ |
if (averaging) { |
1090 |
+ |
copycolor(sscan(y)[x], backcolor); |
1091 |
+ |
wscan(y)[x] = 1; |
1092 |
+ |
} else |
1093 |
+ |
copycolr(pscan(y)[x], backcolr); |
1094 |
+ |
zscan(y)[x] = backz; |
1095 |
+ |
} |
1096 |
+ |
|
1097 |
+ |
|
1098 |
+ |
calstart(prog, args) /* start fill calculation */ |
1099 |
+ |
char *prog, *args; |
1100 |
+ |
{ |
1101 |
+ |
char combuf[512]; |
1102 |
+ |
char *argv[64]; |
1103 |
+ |
int rval; |
1104 |
+ |
register char **wp, *cp; |
1105 |
+ |
|
1106 |
+ |
if (PDesc.running) { |
1107 |
+ |
fprintf(stderr, "%s: too many calculations\n", progname); |
1108 |
+ |
exit(1); |
1109 |
+ |
} |
1110 |
+ |
strcpy(combuf, prog); |
1111 |
+ |
strcat(combuf, args); |
1112 |
+ |
cp = combuf; |
1113 |
+ |
wp = argv; |
1114 |
+ |
for ( ; ; ) { |
1115 |
+ |
while (isspace(*cp)) /* nullify spaces */ |
1116 |
+ |
*cp++ = '\0'; |
1117 |
+ |
if (!*cp) /* all done? */ |
1118 |
+ |
break; |
1119 |
+ |
*wp++ = cp; /* add argument to list */ |
1120 |
+ |
while (*++cp && !isspace(*cp)) |
1121 |
+ |
; |
1122 |
+ |
} |
1123 |
+ |
*wp = NULL; |
1124 |
+ |
/* start process */ |
1125 |
+ |
if ((rval = open_process(&PDesc, argv)) < 0) |
1126 |
+ |
syserror(progname); |
1127 |
+ |
if (rval == 0) { |
1128 |
+ |
fprintf(stderr, "%s: command not found\n", argv[0]); |
1129 |
+ |
exit(1); |
1130 |
+ |
} |
1131 |
+ |
packsiz = rval/(6*sizeof(float)) - 1; |
1132 |
+ |
if (packsiz > PACKSIZ) |
1133 |
+ |
packsiz = PACKSIZ; |
1134 |
+ |
queuesiz = 0; |
1135 |
+ |
} |
1136 |
+ |
|
1137 |
+ |
|
1138 |
+ |
caldone() /* done with calculation */ |
1139 |
+ |
{ |
1140 |
+ |
if (!PDesc.running) |
1141 |
+ |
return; |
1142 |
+ |
clearqueue(); |
1143 |
+ |
close_process(&PDesc); |
1144 |
+ |
} |
1145 |
+ |
|
1146 |
+ |
|
1147 |
+ |
rcalfill(x, y) /* fill with ray-calculated pixel */ |
1148 |
+ |
int x, y; |
1149 |
+ |
{ |
1150 |
+ |
if (queuesiz >= packsiz) /* flush queue if needed */ |
1151 |
+ |
clearqueue(); |
1152 |
+ |
/* add position to queue */ |
1153 |
+ |
queue[queuesiz][0] = x; |
1154 |
+ |
queue[queuesiz][1] = y; |
1155 |
+ |
queuesiz++; |
1156 |
+ |
} |
1157 |
+ |
|
1158 |
+ |
|
1159 |
+ |
clearqueue() /* process queue */ |
1160 |
+ |
{ |
1161 |
+ |
FVECT orig, dir; |
1162 |
+ |
float fbuf[6*(PACKSIZ+1)]; |
1163 |
+ |
register float *fbp; |
1164 |
+ |
register int i; |
1165 |
+ |
double vx, vy; |
1166 |
+ |
|
1167 |
+ |
if (queuesiz == 0) |
1168 |
+ |
return; |
1169 |
+ |
fbp = fbuf; |
1170 |
+ |
for (i = 0; i < queuesiz; i++) { |
1171 |
+ |
viewray(orig, dir, &ourview, |
1172 |
+ |
(queue[i][0]+.5)/hresolu, |
1173 |
+ |
(queue[i][1]+.5)/vresolu); |
1174 |
+ |
*fbp++ = orig[0]; *fbp++ = orig[1]; *fbp++ = orig[2]; |
1175 |
+ |
*fbp++ = dir[0]; *fbp++ = dir[1]; *fbp++ = dir[2]; |
1176 |
+ |
} |
1177 |
+ |
/* mark end and get results */ |
1178 |
+ |
memset((char *)fbp, '\0', 6*sizeof(float)); |
1179 |
+ |
if (process(&PDesc, (char *)fbuf, (char *)fbuf, |
1180 |
+ |
4*sizeof(float)*(queuesiz+1), |
1181 |
+ |
6*sizeof(float)*(queuesiz+1)) != |
1182 |
+ |
4*sizeof(float)*(queuesiz+1)) { |
1183 |
+ |
fprintf(stderr, "%s: error reading from rtrace process\n", |
1184 |
+ |
progname); |
1185 |
+ |
exit(1); |
1186 |
+ |
} |
1187 |
+ |
fbp = fbuf; |
1188 |
+ |
for (i = 0; i < queuesiz; i++) { |
1189 |
+ |
if (ourexp > 0 && ourexp != 1.0) { |
1190 |
+ |
fbp[0] *= ourexp; |
1191 |
+ |
fbp[1] *= ourexp; |
1192 |
+ |
fbp[2] *= ourexp; |
1193 |
+ |
} |
1194 |
+ |
if (averaging) { |
1195 |
+ |
setcolor(sscan(queue[i][1])[queue[i][0]], |
1196 |
+ |
fbp[0], fbp[1], fbp[2]); |
1197 |
+ |
wscan(queue[i][1])[queue[i][0]] = 1; |
1198 |
+ |
} else |
1199 |
+ |
setcolr(pscan(queue[i][1])[queue[i][0]], |
1200 |
+ |
fbp[0], fbp[1], fbp[2]); |
1201 |
+ |
if (zisnorm) |
1202 |
+ |
zscan(queue[i][1])[queue[i][0]] = fbp[3]; |
1203 |
+ |
else { |
1204 |
+ |
vx = (queue[i][0]+.5)/hresolu + ourview.hoff - .5; |
1205 |
+ |
vy = (queue[i][1]+.5)/vresolu + ourview.voff - .5; |
1206 |
+ |
zscan(queue[i][1])[queue[i][0]] = fbp[3] / sqrt(1. + |
1207 |
+ |
vx*vx*ourview.hn2 + vy*vy*ourview.vn2); |
1208 |
+ |
} |
1209 |
+ |
fbp += 4; |
1210 |
+ |
} |
1211 |
+ |
queuesiz = 0; |
1212 |
+ |
} |
1213 |
+ |
|
1214 |
+ |
|
1215 |
+ |
syserror(s) /* report error and exit */ |
1216 |
+ |
char *s; |
1217 |
+ |
{ |
1218 |
+ |
perror(s); |
1219 |
+ |
exit(1); |
1220 |
|
} |