1 |
< |
/* Copyright (c) 1991 Regents of the University of California */ |
1 |
> |
/* Copyright (c) 1995 Regents of the University of California */ |
2 |
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3 |
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#ifndef lint |
4 |
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static char SCCSid[] = "$SunId$ LBL"; |
20 |
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21 |
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#include "resolu.h" |
22 |
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|
23 |
< |
#ifndef BSD |
24 |
< |
#define vfork fork |
25 |
< |
#endif |
23 |
> |
#define LOG2 0.69314718055994530942 |
24 |
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|
25 |
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#define pscan(y) (ourpict+(y)*hresolu) |
26 |
+ |
#define sscan(y) (ourspict+(y)*hresolu) |
27 |
+ |
#define wscan(y) (ourweigh+(y)*hresolu) |
28 |
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#define zscan(y) (ourzbuf+(y)*hresolu) |
29 |
+ |
#define bscan(y) (ourbpict+(y)*hresolu) |
30 |
+ |
#define averaging (ourweigh != NULL) |
31 |
+ |
#define blurring (ourbpict != NULL) |
32 |
+ |
#define usematrix (hasmatrix & !averaging) |
33 |
+ |
#define zisnorm (!usematrix | ourview.type != VT_PER) |
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|
35 |
+ |
#define MAXWT 1000. /* maximum pixel weight (averaging) */ |
36 |
+ |
|
37 |
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#define F_FORE 1 /* fill foreground */ |
38 |
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#define F_BACK 2 /* fill background */ |
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|
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|
46 |
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struct position {int x,y; float z;}; |
47 |
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|
48 |
+ |
#define NSTEPS 64 /* number steps in overlap prescan */ |
49 |
+ |
#define MINSTEP 4 /* minimum worthwhile preview step */ |
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+ |
|
51 |
+ |
struct bound {int min,max;}; |
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+ |
|
53 |
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VIEW ourview = STDVIEW; /* desired view */ |
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int hresolu = 512; /* horizontal resolution */ |
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int vresolu = 512; /* vertical resolution */ |
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|
58 |
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double zeps = .02; /* allowed z epsilon */ |
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|
60 |
< |
COLR *ourpict; /* output picture */ |
60 |
> |
COLR *ourpict; /* output picture (COLR's) */ |
61 |
> |
COLOR *ourspict; /* output pixel sums (averaging) */ |
62 |
> |
float *ourweigh = NULL; /* output pixel weights (averaging) */ |
63 |
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float *ourzbuf; /* corresponding z-buffer */ |
64 |
+ |
COLOR *ourbpict = NULL; /* blurred picture (view averaging) */ |
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|
66 |
+ |
VIEW avgview; /* average view for -B option */ |
67 |
+ |
int nvavg; /* number of views averaged */ |
68 |
+ |
|
69 |
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char *progname; |
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|
71 |
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int fillo = F_FORE|F_BACK; /* selected fill options */ |
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extern int backfill(), rcalfill(); /* fill functions */ |
74 |
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int (*fillfunc)() = backfill; /* selected fill function */ |
75 |
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COLR backcolr = BLKCOLR; /* background color */ |
76 |
+ |
COLOR backcolor = BLKCOLOR; /* background color (float) */ |
77 |
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double backz = 0.0; /* background z value */ |
78 |
< |
int normdist = 1; /* normalized distance? */ |
79 |
< |
double ourexp = -1; /* output picture exposure */ |
78 |
> |
int normdist = 1; /* i/o normalized distance? */ |
79 |
> |
double ourexp = -1; /* original picture exposure */ |
80 |
> |
int expadj = 0; /* exposure adjustment (f-stops) */ |
81 |
> |
double rexpadj = 1; /* real exposure adjustment */ |
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|
83 |
< |
VIEW theirview = STDVIEW; /* input view */ |
83 |
> |
VIEW theirview; /* input view */ |
84 |
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int gotview; /* got input view? */ |
85 |
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int wrongformat = 0; /* input in another format? */ |
86 |
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RESOLU tresolu; /* input resolution */ |
87 |
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double theirexp; /* input picture exposure */ |
88 |
< |
double theirs2ours[4][4]; /* transformation matrix */ |
88 |
> |
MAT4 theirs2ours; /* transformation matrix */ |
89 |
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int hasmatrix = 0; /* has transformation matrix */ |
90 |
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|
91 |
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int PDesc[3] = {-1,-1,-1}; /* rtrace process descriptor */ |
92 |
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#define childpid (PDesc[2]) |
93 |
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unsigned short queue[PACKSIZ][2]; /* pending pixels */ |
94 |
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int packsiz; /* actual packet size */ |
95 |
< |
int queuesiz; /* number of pixels pending */ |
95 |
> |
int queuesiz = 0; /* number of pixels pending */ |
96 |
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|
97 |
+ |
extern double movepixel(); |
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|
99 |
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|
100 |
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main(argc, argv) /* interpolate pictures */ |
101 |
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int argc; |
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char *argv[]; |
103 |
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{ |
104 |
< |
#define check(ol,al) if (argv[i][ol] || \ |
105 |
< |
badarg(argc-i-1,argv+i+1,al)) \ |
104 |
> |
#define check(ol,al) if (argv[an][ol] || \ |
105 |
> |
badarg(argc-an-1,argv+an+1,al)) \ |
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goto badopt |
107 |
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int gotvfile = 0; |
108 |
+ |
int doavg = -1; |
109 |
+ |
int doblur = 0; |
110 |
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char *zfile = NULL; |
111 |
< |
char *err; |
112 |
< |
int i, rval; |
111 |
> |
char *expcomp = NULL; |
112 |
> |
int i, an, rval; |
113 |
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|
114 |
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progname = argv[0]; |
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|
116 |
< |
for (i = 1; i < argc && argv[i][0] == '-'; i++) { |
117 |
< |
rval = getviewopt(&ourview, argc-i, argv+i); |
116 |
> |
for (an = 1; an < argc && argv[an][0] == '-'; an++) { |
117 |
> |
rval = getviewopt(&ourview, argc-an, argv+an); |
118 |
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if (rval >= 0) { |
119 |
< |
i += rval; |
119 |
> |
an += rval; |
120 |
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continue; |
121 |
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} |
122 |
< |
switch (argv[i][1]) { |
122 |
> |
switch (argv[an][1]) { |
123 |
> |
case 'e': /* exposure */ |
124 |
> |
check(2,"f"); |
125 |
> |
expcomp = argv[++an]; |
126 |
> |
break; |
127 |
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case 't': /* threshold */ |
128 |
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check(2,"f"); |
129 |
< |
zeps = atof(argv[++i]); |
129 |
> |
zeps = atof(argv[++an]); |
130 |
|
break; |
131 |
+ |
case 'a': /* average */ |
132 |
+ |
check(2,NULL); |
133 |
+ |
doavg = 1; |
134 |
+ |
break; |
135 |
+ |
case 'B': /* blur views */ |
136 |
+ |
check(2,NULL); |
137 |
+ |
doblur = 1; |
138 |
+ |
break; |
139 |
+ |
case 'q': /* quick (no avg.) */ |
140 |
+ |
check(2,NULL); |
141 |
+ |
doavg = 0; |
142 |
+ |
break; |
143 |
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case 'n': /* dist. normalized? */ |
144 |
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check(2,NULL); |
145 |
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normdist = !normdist; |
146 |
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break; |
147 |
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case 'f': /* fill type */ |
148 |
< |
switch (argv[i][2]) { |
148 |
> |
switch (argv[an][2]) { |
149 |
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case '0': /* none */ |
150 |
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check(3,NULL); |
151 |
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fillo = 0; |
164 |
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break; |
165 |
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case 's': /* sample */ |
166 |
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check(3,"i"); |
167 |
< |
fillsamp = atoi(argv[++i]); |
167 |
> |
fillsamp = atoi(argv[++an]); |
168 |
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break; |
169 |
|
case 'c': /* color */ |
170 |
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check(3,"fff"); |
171 |
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fillfunc = backfill; |
172 |
< |
setcolr(backcolr, atof(argv[i+1]), |
173 |
< |
atof(argv[i+2]), atof(argv[i+3])); |
174 |
< |
i += 3; |
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 'z': /* z value */ |
180 |
|
check(3,"f"); |
181 |
|
fillfunc = backfill; |
182 |
< |
backz = atof(argv[++i]); |
182 |
> |
backz = atof(argv[++an]); |
183 |
|
break; |
184 |
|
case 'r': /* rtrace */ |
185 |
|
check(3,"s"); |
186 |
|
fillfunc = rcalfill; |
187 |
< |
calstart(RTCOM, argv[++i]); |
187 |
> |
calstart(RTCOM, argv[++an]); |
188 |
|
break; |
189 |
|
default: |
190 |
|
goto badopt; |
192 |
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break; |
193 |
|
case 'z': /* z file */ |
194 |
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check(2,"s"); |
195 |
< |
zfile = argv[++i]; |
195 |
> |
zfile = argv[++an]; |
196 |
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break; |
197 |
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case 'x': /* x resolution */ |
198 |
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check(2,"i"); |
199 |
< |
hresolu = atoi(argv[++i]); |
199 |
> |
hresolu = atoi(argv[++an]); |
200 |
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break; |
201 |
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case 'y': /* y resolution */ |
202 |
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check(2,"i"); |
203 |
< |
vresolu = atoi(argv[++i]); |
203 |
> |
vresolu = atoi(argv[++an]); |
204 |
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break; |
205 |
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case 'p': /* pixel aspect */ |
206 |
< |
if (argv[i][2] != 'a') |
206 |
> |
if (argv[an][2] != 'a') |
207 |
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goto badopt; |
208 |
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check(3,"f"); |
209 |
< |
pixaspect = atof(argv[++i]); |
209 |
> |
pixaspect = atof(argv[++an]); |
210 |
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break; |
211 |
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case 'v': /* view file */ |
212 |
< |
if (argv[i][2] != 'f') |
212 |
> |
if (argv[an][2] != 'f') |
213 |
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goto badopt; |
214 |
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check(3,"s"); |
215 |
< |
gotvfile = viewfile(argv[++i], &ourview, 0, 0); |
216 |
< |
if (gotvfile < 0) { |
217 |
< |
perror(argv[i]); |
218 |
< |
exit(1); |
175 |
< |
} else if (gotvfile == 0) { |
215 |
> |
gotvfile = viewfile(argv[++an], &ourview, 0, 0); |
216 |
> |
if (gotvfile < 0) |
217 |
> |
syserror(argv[an]); |
218 |
> |
else if (gotvfile == 0) { |
219 |
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fprintf(stderr, "%s: bad view file\n", |
220 |
< |
argv[i]); |
220 |
> |
argv[an]); |
221 |
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exit(1); |
222 |
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} |
223 |
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break; |
224 |
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default: |
225 |
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badopt: |
226 |
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fprintf(stderr, "%s: command line error at '%s'\n", |
227 |
< |
progname, argv[i]); |
227 |
> |
progname, argv[an]); |
228 |
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goto userr; |
229 |
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} |
230 |
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} |
231 |
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/* check arguments */ |
232 |
< |
if ((argc-i)%2) |
232 |
> |
if ((argc-an)%2) |
233 |
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goto userr; |
234 |
|
if (fillsamp == 1) |
235 |
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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 |
|
/* set view */ |
254 |
< |
if (err = setview(&ourview)) { |
255 |
< |
fprintf(stderr, "%s: %s\n", progname, err); |
254 |
> |
if (nextview(doblur ? stdin : NULL) == EOF) { |
255 |
> |
fprintf(stderr, "%s: no view on standard input!\n", |
256 |
> |
progname); |
257 |
|
exit(1); |
258 |
|
} |
259 |
|
normaspect(viewaspect(&ourview), &pixaspect, &hresolu, &vresolu); |
260 |
|
/* allocate frame */ |
261 |
< |
ourpict = (COLR *)bmalloc(hresolu*vresolu*sizeof(COLR)); |
261 |
> |
if (doavg) { |
262 |
> |
ourspict = (COLOR *)bmalloc(hresolu*vresolu*sizeof(COLOR)); |
263 |
> |
ourweigh = (float *)bmalloc(hresolu*vresolu*sizeof(float)); |
264 |
> |
if (ourspict == NULL | ourweigh == NULL) |
265 |
> |
syserror(progname); |
266 |
> |
} else { |
267 |
> |
ourpict = (COLR *)bmalloc(hresolu*vresolu*sizeof(COLR)); |
268 |
> |
if (ourpict == NULL) |
269 |
> |
syserror(progname); |
270 |
> |
} |
271 |
> |
if (doblur) { |
272 |
> |
ourbpict = (COLOR *)bmalloc(hresolu*vresolu*sizeof(COLOR)); |
273 |
> |
if (ourbpict == NULL) |
274 |
> |
syserror(progname); |
275 |
> |
} |
276 |
|
ourzbuf = (float *)bmalloc(hresolu*vresolu*sizeof(float)); |
277 |
< |
if (ourpict == NULL || ourzbuf == NULL) |
278 |
< |
syserror(); |
279 |
< |
bzero((char *)ourzbuf, hresolu*vresolu*sizeof(float)); |
280 |
< |
/* get input */ |
281 |
< |
for ( ; i < argc; i += 2) |
282 |
< |
addpicture(argv[i], argv[i+1]); |
283 |
< |
/* fill in spaces */ |
284 |
< |
if (fillo&F_BACK) |
285 |
< |
backpicture(fillfunc, fillsamp); |
286 |
< |
else |
287 |
< |
fillpicture(fillfunc); |
277 |
> |
if (ourzbuf == NULL) |
278 |
> |
syserror(progname); |
279 |
> |
/* new header */ |
280 |
> |
newheader("RADIANCE", stdout); |
281 |
> |
/* run pictures */ |
282 |
> |
do { |
283 |
> |
bzero((char *)ourzbuf, hresolu*vresolu*sizeof(float)); |
284 |
> |
for (i = an; i < argc; i += 2) |
285 |
> |
addpicture(argv[i], argv[i+1]); |
286 |
> |
if (fillo&F_BACK) /* fill in spaces */ |
287 |
> |
backpicture(fillfunc, fillsamp); |
288 |
> |
else |
289 |
> |
fillpicture(fillfunc); |
290 |
> |
/* aft clipping */ |
291 |
> |
clipaft(); |
292 |
> |
} while (addblur() && nextview(stdin) != EOF); |
293 |
|
/* close calculation */ |
294 |
|
caldone(); |
295 |
|
/* add to header */ |
296 |
|
printargs(argc, argv, stdout); |
297 |
< |
if (gotvfile) { |
297 |
> |
compavgview(); |
298 |
> |
if (doblur | gotvfile) { |
299 |
|
fputs(VIEWSTR, stdout); |
300 |
< |
fprintview(&ourview, stdout); |
300 |
> |
fprintview(&avgview, stdout); |
301 |
|
putc('\n', stdout); |
302 |
|
} |
303 |
< |
if (pixaspect < .99 || pixaspect > 1.01) |
303 |
> |
if (pixaspect < .99 | pixaspect > 1.01) |
304 |
|
fputaspect(pixaspect, stdout); |
305 |
< |
if (ourexp > 0 && (ourexp < .995 || ourexp > 1.005)) |
305 |
> |
if (ourexp > 0) |
306 |
> |
ourexp *= rexpadj; |
307 |
> |
else |
308 |
> |
ourexp = rexpadj; |
309 |
> |
if (ourexp < .995 | ourexp > 1.005) |
310 |
|
fputexpos(ourexp, stdout); |
311 |
|
fputformat(COLRFMT, stdout); |
312 |
|
putc('\n', stdout); |
319 |
|
exit(0); |
320 |
|
userr: |
321 |
|
fprintf(stderr, |
322 |
< |
"Usage: %s [view opts][-t eps][-z zout][-fT][-n] pfile zspec ..\n", |
322 |
> |
"Usage: %s [view opts][-t eps][-z zout][-e spec][-B][-a|-q][-fT][-n] pfile zspec ..\n", |
323 |
|
progname); |
324 |
|
exit(1); |
325 |
|
#undef check |
331 |
|
{ |
332 |
|
char fmt[32]; |
333 |
|
|
334 |
< |
if (isformat(s)) { |
335 |
< |
formatval(fmt, s); |
334 |
> |
if (isheadid(s)) |
335 |
> |
return; |
336 |
> |
if (formatval(fmt, s)) { |
337 |
|
wrongformat = strcmp(fmt, COLRFMT); |
338 |
|
return; |
339 |
|
} |
340 |
< |
putc('\t', stdout); |
341 |
< |
fputs(s, stdout); |
342 |
< |
|
340 |
> |
if (nvavg < 2) { |
341 |
> |
putc('\t', stdout); |
342 |
> |
fputs(s, stdout); |
343 |
> |
} |
344 |
|
if (isexpos(s)) { |
345 |
|
theirexp *= exposval(s); |
346 |
|
return; |
350 |
|
} |
351 |
|
|
352 |
|
|
353 |
+ |
nextview(fp) /* get and set next view */ |
354 |
+ |
FILE *fp; |
355 |
+ |
{ |
356 |
+ |
char linebuf[256]; |
357 |
+ |
char *err; |
358 |
+ |
register int i; |
359 |
+ |
|
360 |
+ |
if (fp != NULL) { |
361 |
+ |
do /* get new view */ |
362 |
+ |
if (fgets(linebuf, sizeof(linebuf), fp) == NULL) |
363 |
+ |
return(EOF); |
364 |
+ |
while (!isview(linebuf) || !sscanview(&ourview, linebuf)); |
365 |
+ |
} |
366 |
+ |
/* set new view */ |
367 |
+ |
if ((err = setview(&ourview)) != NULL) { |
368 |
+ |
fprintf(stderr, "%s: %s\n", progname, err); |
369 |
+ |
exit(1); |
370 |
+ |
} |
371 |
+ |
if (!nvavg) { /* first view */ |
372 |
+ |
copystruct(&avgview, &ourview); |
373 |
+ |
return(nvavg++); |
374 |
+ |
} |
375 |
+ |
/* add to average view */ |
376 |
+ |
for (i = 0; i < 3; i++) { |
377 |
+ |
avgview.vp[i] += ourview.vp[i]; |
378 |
+ |
avgview.vdir[i] += ourview.vdir[i]; |
379 |
+ |
avgview.vup[i] += ourview.vup[i]; |
380 |
+ |
} |
381 |
+ |
avgview.horiz += ourview.horiz; |
382 |
+ |
avgview.vert += ourview.vert; |
383 |
+ |
avgview.hoff += ourview.hoff; |
384 |
+ |
avgview.voff += ourview.voff; |
385 |
+ |
avgview.vfore += ourview.vfore; |
386 |
+ |
avgview.vaft += ourview.vaft; |
387 |
+ |
return(nvavg++); |
388 |
+ |
} |
389 |
+ |
|
390 |
+ |
|
391 |
+ |
compavgview() /* compute average view */ |
392 |
+ |
{ |
393 |
+ |
register int i; |
394 |
+ |
double f; |
395 |
+ |
|
396 |
+ |
if (nvavg < 2) |
397 |
+ |
return; |
398 |
+ |
f = 1.0/nvavg; |
399 |
+ |
for (i = 0; i < 3; i++) { |
400 |
+ |
avgview.vp[i] *= f; |
401 |
+ |
avgview.vdir[i] *= f; |
402 |
+ |
avgview.vup[i] *= f; |
403 |
+ |
} |
404 |
+ |
avgview.horiz *= f; |
405 |
+ |
avgview.vert *= f; |
406 |
+ |
avgview.hoff *= f; |
407 |
+ |
avgview.voff *= f; |
408 |
+ |
avgview.vfore *= f; |
409 |
+ |
avgview.vaft *= f; |
410 |
+ |
if (setview(&avgview) != NULL) /* in case of emergency... */ |
411 |
+ |
copystruct(&avgview, &ourview); |
412 |
+ |
pixaspect = viewaspect(&avgview) * hresolu / vresolu; |
413 |
+ |
} |
414 |
+ |
|
415 |
+ |
|
416 |
|
addpicture(pfile, zspec) /* add picture to output */ |
417 |
|
char *pfile, *zspec; |
418 |
|
{ |
422 |
|
COLR *scanin; |
423 |
|
float *zin; |
424 |
|
struct position *plast; |
425 |
+ |
struct bound *xlim, ylim; |
426 |
|
int y; |
427 |
|
/* open picture file */ |
428 |
< |
if ((pfp = fopen(pfile, "r")) == NULL) { |
429 |
< |
perror(pfile); |
279 |
< |
exit(1); |
280 |
< |
} |
428 |
> |
if ((pfp = fopen(pfile, "r")) == NULL) |
429 |
> |
syserror(pfile); |
430 |
|
/* get header with exposure and view */ |
431 |
|
theirexp = 1.0; |
432 |
+ |
copystruct(&theirview, &stdview); |
433 |
|
gotview = 0; |
434 |
< |
printf("%s:\n", pfile); |
434 |
> |
if (nvavg < 2) |
435 |
> |
printf("%s:\n", pfile); |
436 |
|
getheader(pfp, headline, NULL); |
437 |
|
if (wrongformat || !gotview || !fgetsresolu(&tresolu, pfp)) { |
438 |
|
fprintf(stderr, "%s: picture format error\n", pfile); |
448 |
|
} |
449 |
|
/* compute transformation */ |
450 |
|
hasmatrix = pixform(theirs2ours, &theirview, &ourview); |
300 |
– |
/* allocate scanlines */ |
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 |
– |
if (scanin == NULL || zin == NULL || plast == NULL) |
306 |
– |
syserror(); |
451 |
|
/* get z specification or file */ |
452 |
+ |
zin = (float *)malloc(scanlen(&tresolu)*sizeof(float)); |
453 |
+ |
if (zin == NULL) |
454 |
+ |
syserror(progname); |
455 |
|
if ((zfd = open(zspec, O_RDONLY)) == -1) { |
456 |
|
double zvalue; |
457 |
|
register int x; |
458 |
< |
if (!isfloat(zspec) || (zvalue = atof(zspec)) <= 0.0) { |
459 |
< |
perror(zspec); |
313 |
< |
exit(1); |
314 |
< |
} |
458 |
> |
if (!isflt(zspec) || (zvalue = atof(zspec)) <= 0.0) |
459 |
> |
syserror(zspec); |
460 |
|
for (x = scanlen(&tresolu); x-- > 0; ) |
461 |
|
zin[x] = zvalue; |
462 |
|
} |
463 |
< |
/* load image */ |
464 |
< |
for (y = 0; y < numscans(&tresolu); y++) { |
463 |
> |
/* compute transferrable perimeter */ |
464 |
> |
xlim = (struct bound *)malloc(numscans(&tresolu)*sizeof(struct bound)); |
465 |
> |
if (xlim == NULL) |
466 |
> |
syserror(progname); |
467 |
> |
if (!getperim(xlim, &ylim, zin, zfd)) { /* overlapping area? */ |
468 |
> |
free((char *)zin); |
469 |
> |
free((char *)xlim); |
470 |
> |
if (zfd != -1) |
471 |
> |
close(zfd); |
472 |
> |
fclose(pfp); |
473 |
> |
return; |
474 |
> |
} |
475 |
> |
/* allocate scanlines */ |
476 |
> |
scanin = (COLR *)malloc(scanlen(&tresolu)*sizeof(COLR)); |
477 |
> |
plast = (struct position *)calloc(scanlen(&tresolu), |
478 |
> |
sizeof(struct position)); |
479 |
> |
if (scanin == NULL | plast == NULL) |
480 |
> |
syserror(progname); |
481 |
> |
/* skip to starting point */ |
482 |
> |
for (y = 0; y < ylim.min; y++) |
483 |
|
if (freadcolrs(scanin, scanlen(&tresolu), pfp) < 0) { |
484 |
|
fprintf(stderr, "%s: read error\n", pfile); |
485 |
|
exit(1); |
486 |
|
} |
487 |
< |
if (zfd != -1 && read(zfd,(char *)zin, |
488 |
< |
scanlen(&tresolu)*sizeof(float)) |
489 |
< |
< scanlen(&tresolu)*sizeof(float)) { |
490 |
< |
fprintf(stderr, "%s: read error\n", zspec); |
487 |
> |
if (zfd != -1 && lseek(zfd, |
488 |
> |
(long)ylim.min*scanlen(&tresolu)*sizeof(float), 0) < 0) |
489 |
> |
syserror(zspec); |
490 |
> |
/* load image */ |
491 |
> |
for (y = ylim.min; y <= ylim.max; y++) { |
492 |
> |
if (freadcolrs(scanin, scanlen(&tresolu), pfp) < 0) { |
493 |
> |
fprintf(stderr, "%s: read error\n", pfile); |
494 |
|
exit(1); |
495 |
|
} |
496 |
< |
addscanline(y, scanin, zin, plast); |
496 |
> |
if (zfd != -1 && read(zfd, (char *)zin, |
497 |
> |
scanlen(&tresolu)*sizeof(float)) |
498 |
> |
< scanlen(&tresolu)*sizeof(float)) |
499 |
> |
syserror(zspec); |
500 |
> |
addscanline(xlim+y, y, scanin, zin, plast); |
501 |
|
} |
502 |
|
/* clean up */ |
503 |
+ |
free((char *)xlim); |
504 |
|
free((char *)scanin); |
505 |
|
free((char *)zin); |
506 |
|
free((char *)plast); |
511 |
|
|
512 |
|
|
513 |
|
pixform(xfmat, vw1, vw2) /* compute view1 to view2 matrix */ |
514 |
< |
register double xfmat[4][4]; |
514 |
> |
register MAT4 xfmat; |
515 |
|
register VIEW *vw1, *vw2; |
516 |
|
{ |
517 |
|
double m4t[4][4]; |
518 |
|
|
519 |
< |
if (vw1->type != VT_PER && vw1->type != VT_PAR) |
519 |
> |
if (vw1->type != VT_PER & vw1->type != VT_PAR) |
520 |
|
return(0); |
521 |
< |
if (vw2->type != VT_PER && vw2->type != VT_PAR) |
521 |
> |
if (vw2->type != VT_PER & vw2->type != VT_PAR) |
522 |
|
return(0); |
523 |
|
setident4(xfmat); |
524 |
|
xfmat[0][0] = vw1->hvec[0]; |
551 |
|
} |
552 |
|
|
553 |
|
|
554 |
< |
addscanline(y, pline, zline, lasty) /* add scanline to output */ |
554 |
> |
addscanline(xl, y, pline, zline, lasty) /* add scanline to output */ |
555 |
> |
struct bound *xl; |
556 |
|
int y; |
557 |
|
COLR *pline; |
558 |
|
float *zline; |
559 |
|
struct position *lasty; /* input/output */ |
560 |
|
{ |
389 |
– |
extern double sqrt(); |
561 |
|
FVECT pos; |
562 |
|
struct position lastx, newpos; |
563 |
+ |
double wt; |
564 |
|
register int x; |
565 |
|
|
566 |
|
lastx.z = 0; |
567 |
< |
for (x = scanlen(&tresolu); x-- > 0; ) { |
567 |
> |
for (x = xl->max; x >= xl->min; x--) { |
568 |
|
pix2loc(pos, &tresolu, x, y); |
569 |
|
pos[2] = zline[x]; |
570 |
< |
if (movepixel(pos) < 0) { |
570 |
> |
if ((wt = movepixel(pos)) <= FTINY) { |
571 |
|
lasty[x].z = lastx.z = 0; /* mark invalid */ |
572 |
|
continue; |
573 |
|
} |
574 |
+ |
/* add pixel to our image */ |
575 |
|
newpos.x = pos[0] * hresolu; |
576 |
|
newpos.y = pos[1] * vresolu; |
577 |
|
newpos.z = zline[x]; |
578 |
< |
/* add pixel to our image */ |
579 |
< |
if (pos[0] >= 0 && newpos.x < hresolu |
580 |
< |
&& pos[1] >= 0 && newpos.y < vresolu) { |
581 |
< |
addpixel(&newpos, &lastx, &lasty[x], pline[x], pos[2]); |
409 |
< |
lasty[x].x = lastx.x = newpos.x; |
410 |
< |
lasty[x].y = lastx.y = newpos.y; |
411 |
< |
lasty[x].z = lastx.z = newpos.z; |
412 |
< |
} else |
413 |
< |
lasty[x].z = lastx.z = 0; /* mark invalid */ |
578 |
> |
addpixel(&newpos, &lastx, &lasty[x], pline[x], wt, pos[2]); |
579 |
> |
lasty[x].x = lastx.x = newpos.x; |
580 |
> |
lasty[x].y = lastx.y = newpos.y; |
581 |
> |
lasty[x].z = lastx.z = newpos.z; |
582 |
|
} |
583 |
|
} |
584 |
|
|
585 |
|
|
586 |
< |
addpixel(p0, p1, p2, pix, z) /* fill in pixel parallelogram */ |
586 |
> |
addpixel(p0, p1, p2, pix, w, z) /* fill in pixel parallelogram */ |
587 |
|
struct position *p0, *p1, *p2; |
588 |
|
COLR pix; |
589 |
+ |
double w; |
590 |
|
double z; |
591 |
|
{ |
592 |
|
double zt = 2.*zeps*p0->z; /* threshold */ |
593 |
+ |
COLOR pval; /* converted+weighted pixel */ |
594 |
|
int s1x, s1y, s2x, s2y; /* step sizes */ |
595 |
|
int l1, l2, c1, c2; /* side lengths and counters */ |
596 |
|
int p1isy; /* p0p1 along y? */ |
604 |
|
l1 = ABS(s1x); |
605 |
|
if (p1isy = (ABS(s1y) > l1)) |
606 |
|
l1 = ABS(s1y); |
607 |
+ |
else if (l1 < 1) |
608 |
+ |
l1 = 1; |
609 |
|
} else { |
610 |
|
l1 = s1x = s1y = 1; |
611 |
|
p1isy = -1; |
621 |
|
if (p1isy != 0 && ABS(s2x) > l2) |
622 |
|
l2 = ABS(s2x); |
623 |
|
} |
624 |
+ |
if (l2 < 1) |
625 |
+ |
l2 = 1; |
626 |
|
} else |
627 |
|
l2 = s2x = s2y = 1; |
628 |
|
/* fill the parallelogram */ |
629 |
+ |
if (averaging) { |
630 |
+ |
colr_color(pval, pix); |
631 |
+ |
scalecolor(pval, w); |
632 |
+ |
} |
633 |
|
for (c1 = l1; c1-- > 0; ) { |
634 |
|
x1 = p0->x + c1*s1x/l1; |
635 |
|
y1 = p0->y + c1*s1y/l1; |
636 |
|
for (c2 = l2; c2-- > 0; ) { |
637 |
|
x = x1 + c2*s2x/l2; |
638 |
< |
if (x < 0 || x >= hresolu) |
638 |
> |
if (x < 0 | x >= hresolu) |
639 |
|
continue; |
640 |
|
y = y1 + c2*s2y/l2; |
641 |
< |
if (y < 0 || y >= vresolu) |
641 |
> |
if (y < 0 | y >= vresolu) |
642 |
|
continue; |
643 |
< |
if (zscan(y)[x] <= 0 || zscan(y)[x]-z |
643 |
> |
if (averaging) { |
644 |
> |
if (zscan(y)[x] <= 0 || zscan(y)[x]-z |
645 |
|
> zeps*zscan(y)[x]) { |
646 |
< |
zscan(y)[x] = z; |
646 |
> |
copycolor(sscan(y)[x], pval); |
647 |
> |
wscan(y)[x] = w; |
648 |
> |
zscan(y)[x] = z; |
649 |
> |
} else if (z-zscan(y)[x] <= zeps*zscan(y)[x]) { |
650 |
> |
addcolor(sscan(y)[x], pval); |
651 |
> |
wscan(y)[x] += w; |
652 |
> |
} |
653 |
> |
} else if (zscan(y)[x] <= 0 || zscan(y)[x]-z |
654 |
> |
> zeps*zscan(y)[x]) { |
655 |
|
copycolr(pscan(y)[x], pix); |
656 |
+ |
zscan(y)[x] = z; |
657 |
|
} |
658 |
|
} |
659 |
|
} |
660 |
|
} |
661 |
|
|
662 |
|
|
663 |
+ |
double |
664 |
|
movepixel(pos) /* reposition image point */ |
665 |
< |
FVECT pos; |
665 |
> |
register FVECT pos; |
666 |
|
{ |
667 |
< |
FVECT pt, direc; |
667 |
> |
FVECT pt, tdir, odir; |
668 |
> |
double d; |
669 |
> |
register int i; |
670 |
|
|
671 |
|
if (pos[2] <= 0) /* empty pixel */ |
672 |
< |
return(-1); |
673 |
< |
if (hasmatrix) { |
672 |
> |
return(0); |
673 |
> |
if (usematrix) { |
674 |
|
pos[0] += theirview.hoff - .5; |
675 |
|
pos[1] += theirview.voff - .5; |
676 |
+ |
if (normdist & theirview.type == VT_PER) |
677 |
+ |
d = sqrt(1. + pos[0]*pos[0]*theirview.hn2 |
678 |
+ |
+ pos[1]*pos[1]*theirview.vn2); |
679 |
+ |
else |
680 |
+ |
d = 1.; |
681 |
+ |
pos[2] += d*theirview.vfore; |
682 |
|
if (theirview.type == VT_PER) { |
683 |
< |
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 ); |
683 |
> |
pos[2] /= d; |
684 |
|
pos[0] *= pos[2]; |
685 |
|
pos[1] *= pos[2]; |
686 |
|
} |
687 |
|
multp3(pos, pos, theirs2ours); |
688 |
< |
if (pos[2] <= 0) |
689 |
< |
return(-1); |
688 |
> |
if (pos[2] <= ourview.vfore) |
689 |
> |
return(0); |
690 |
|
if (ourview.type == VT_PER) { |
691 |
|
pos[0] /= pos[2]; |
692 |
|
pos[1] /= pos[2]; |
693 |
|
} |
694 |
|
pos[0] += .5 - ourview.hoff; |
695 |
|
pos[1] += .5 - ourview.voff; |
696 |
+ |
pos[2] -= ourview.vfore; |
697 |
+ |
} else { |
698 |
+ |
if (viewray(pt, tdir, &theirview, pos[0], pos[1]) < -FTINY) |
699 |
+ |
return(0); |
700 |
+ |
if (!normdist & theirview.type == VT_PER) /* adjust */ |
701 |
+ |
pos[2] *= sqrt(1. + pos[0]*pos[0]*theirview.hn2 |
702 |
+ |
+ pos[1]*pos[1]*theirview.vn2); |
703 |
+ |
pt[0] += tdir[0]*pos[2]; |
704 |
+ |
pt[1] += tdir[1]*pos[2]; |
705 |
+ |
pt[2] += tdir[2]*pos[2]; |
706 |
+ |
viewloc(pos, &ourview, pt); |
707 |
+ |
if (pos[2] <= 0) |
708 |
+ |
return(0); |
709 |
+ |
} |
710 |
+ |
if (pos[0] < 0 | pos[0] >= 1-FTINY | pos[1] < 0 | pos[1] >= 1-FTINY) |
711 |
|
return(0); |
712 |
+ |
if (!averaging) |
713 |
+ |
return(1); |
714 |
+ |
if (ourview.type == VT_PAR) /* compute our direction */ |
715 |
+ |
VCOPY(odir, ourview.vdir); |
716 |
+ |
else |
717 |
+ |
for (i = 0; i < 3; i++) |
718 |
+ |
odir[i] = (pt[i] - ourview.vp[i])/pos[2]; |
719 |
+ |
d = DOT(odir,tdir); /* compute pixel weight */ |
720 |
+ |
if (d >= 1.-1./MAXWT/MAXWT) |
721 |
+ |
return(MAXWT); /* clip to maximum weight */ |
722 |
+ |
return(1./sqrt(1.-d)); |
723 |
+ |
} |
724 |
+ |
|
725 |
+ |
|
726 |
+ |
getperim(xl, yl, zline, zfd) /* compute overlapping image area */ |
727 |
+ |
register struct bound *xl; |
728 |
+ |
struct bound *yl; |
729 |
+ |
float *zline; |
730 |
+ |
int zfd; |
731 |
+ |
{ |
732 |
+ |
int step; |
733 |
+ |
FVECT pos; |
734 |
+ |
register int x, y; |
735 |
+ |
/* set up step size */ |
736 |
+ |
if (scanlen(&tresolu) < numscans(&tresolu)) |
737 |
+ |
step = scanlen(&tresolu)/NSTEPS; |
738 |
+ |
else |
739 |
+ |
step = numscans(&tresolu)/NSTEPS; |
740 |
+ |
if (step < MINSTEP) { /* not worth cropping? */ |
741 |
+ |
yl->min = 0; |
742 |
+ |
yl->max = numscans(&tresolu) - 1; |
743 |
+ |
x = scanlen(&tresolu) - 1; |
744 |
+ |
for (y = numscans(&tresolu); y--; ) { |
745 |
+ |
xl[y].min = 0; |
746 |
+ |
xl[y].max = x; |
747 |
+ |
} |
748 |
+ |
return(1); |
749 |
|
} |
750 |
< |
if (viewray(pt, direc, &theirview, pos[0], pos[1]) < 0) |
751 |
< |
return(-1); |
752 |
< |
pt[0] += direc[0]*pos[2]; |
753 |
< |
pt[1] += direc[1]*pos[2]; |
754 |
< |
pt[2] += direc[2]*pos[2]; |
755 |
< |
viewloc(pos, &ourview, pt); |
756 |
< |
if (pos[2] <= 0) |
757 |
< |
return(-1); |
758 |
< |
return(0); |
750 |
> |
yl->min = 32000; yl->max = 0; /* search for points on image */ |
751 |
> |
for (y = step - 1; y < numscans(&tresolu); y += step) { |
752 |
> |
if (zfd != -1) { |
753 |
> |
if (lseek(zfd, (long)y*scanlen(&tresolu)*sizeof(float), |
754 |
> |
0) < 0) |
755 |
> |
syserror("lseek"); |
756 |
> |
if (read(zfd, (char *)zline, |
757 |
> |
scanlen(&tresolu)*sizeof(float)) |
758 |
> |
< scanlen(&tresolu)*sizeof(float)) |
759 |
> |
syserror("read"); |
760 |
> |
} |
761 |
> |
xl[y].min = 32000; xl[y].max = 0; /* x max */ |
762 |
> |
for (x = scanlen(&tresolu); (x -= step) > 0; ) { |
763 |
> |
pix2loc(pos, &tresolu, x, y); |
764 |
> |
pos[2] = zline[x]; |
765 |
> |
if (movepixel(pos) > FTINY) { |
766 |
> |
xl[y].max = x + step - 1; |
767 |
> |
xl[y].min = x - step + 1; /* x min */ |
768 |
> |
if (xl[y].min < 0) |
769 |
> |
xl[y].min = 0; |
770 |
> |
for (x = step - 1; x < xl[y].max; x += step) { |
771 |
> |
pix2loc(pos, &tresolu, x, y); |
772 |
> |
pos[2] = zline[x]; |
773 |
> |
if (movepixel(pos) > FTINY) { |
774 |
> |
xl[y].min = x - step + 1; |
775 |
> |
break; |
776 |
> |
} |
777 |
> |
} |
778 |
> |
if (y < yl->min) /* y limits */ |
779 |
> |
yl->min = y - step + 1; |
780 |
> |
yl->max = y + step - 1; |
781 |
> |
break; |
782 |
> |
} |
783 |
> |
} |
784 |
> |
/* fill in between */ |
785 |
> |
if (y < step) { |
786 |
> |
xl[y-1].min = xl[y].min; |
787 |
> |
xl[y-1].max = xl[y].max; |
788 |
> |
} else { |
789 |
> |
if (xl[y].min < xl[y-step].min) |
790 |
> |
xl[y-1].min = xl[y].min; |
791 |
> |
else |
792 |
> |
xl[y-1].min = xl[y-step].min; |
793 |
> |
if (xl[y].max > xl[y-step].max) |
794 |
> |
xl[y-1].max = xl[y].max; |
795 |
> |
else |
796 |
> |
xl[y-1].max = xl[y-step].max; |
797 |
> |
} |
798 |
> |
for (x = 2; x < step; x++) |
799 |
> |
copystruct(xl+y-x, xl+y-1); |
800 |
> |
} |
801 |
> |
if (yl->max >= numscans(&tresolu)) |
802 |
> |
yl->max = numscans(&tresolu) - 1; |
803 |
> |
y -= step; |
804 |
> |
for (x = numscans(&tresolu) - 1; x > y; x--) /* fill bottom rows */ |
805 |
> |
copystruct(xl+x, xl+y); |
806 |
> |
return(yl->max >= yl->min); |
807 |
|
} |
808 |
|
|
809 |
|
|
817 |
|
/* get back buffer */ |
818 |
|
yback = (int *)malloc(hresolu*sizeof(int)); |
819 |
|
if (yback == NULL) |
820 |
< |
syserror(); |
820 |
> |
syserror(progname); |
821 |
|
for (x = 0; x < hresolu; x++) |
822 |
|
yback[x] = -2; |
823 |
|
/* |
877 |
|
< zscan(y)[xback] ) ) { |
878 |
|
if (samp > 0 && ABS(x-xback) >= samp) |
879 |
|
goto fillit; |
880 |
< |
copycolr(pscan(y)[x],pscan(y)[xback]); |
880 |
> |
if (averaging) { |
881 |
> |
copycolor(sscan(y)[x], |
882 |
> |
sscan(y)[xback]); |
883 |
> |
wscan(y)[x] = wscan(y)[xback]; |
884 |
> |
} else |
885 |
> |
copycolr(pscan(y)[x], |
886 |
> |
pscan(y)[xback]); |
887 |
|
zscan(y)[x] = zscan(y)[xback]; |
888 |
|
} else { |
889 |
|
if (samp > 0 && ABS(y-yback[x]) > samp) |
890 |
|
goto fillit; |
891 |
< |
copycolr(pscan(y)[x],pscan(yback[x])[x]); |
891 |
> |
if (averaging) { |
892 |
> |
copycolor(sscan(y)[x], |
893 |
> |
sscan(yback[x])[x]); |
894 |
> |
wscan(y)[x] = |
895 |
> |
wscan(yback[x])[x]; |
896 |
> |
} else |
897 |
> |
copycolr(pscan(y)[x], |
898 |
> |
pscan(yback[x])[x]); |
899 |
|
zscan(y)[x] = zscan(yback[x])[x]; |
900 |
|
} |
901 |
|
continue; |
924 |
|
for (x = 0; x < hresolu; x++) |
925 |
|
if (zscan(y)[x] <= 0) |
926 |
|
(*fill)(x,y); |
927 |
+ |
if (fill == rcalfill) |
928 |
+ |
clearqueue(); |
929 |
|
} |
930 |
|
|
931 |
|
|
932 |
< |
writepicture() /* write out picture */ |
932 |
> |
clipaft() /* perform aft clipping as indicated */ |
933 |
|
{ |
934 |
+ |
register int x, y; |
935 |
+ |
int adjtest = ourview.type == VT_PER & zisnorm; |
936 |
+ |
double tstdist; |
937 |
+ |
double yzn2, vx; |
938 |
+ |
|
939 |
+ |
if (ourview.vaft <= FTINY) |
940 |
+ |
return(0); |
941 |
+ |
tstdist = ourview.vaft - ourview.vfore; |
942 |
+ |
for (y = 0; y < vresolu; y++) { |
943 |
+ |
if (adjtest) { /* adjust test */ |
944 |
+ |
yzn2 = (y+.5)/vresolu + ourview.voff - .5; |
945 |
+ |
yzn2 = 1. + yzn2*yzn2*ourview.vn2; |
946 |
+ |
tstdist = (ourview.vaft - ourview.vfore)*sqrt(yzn2); |
947 |
+ |
} |
948 |
+ |
for (x = 0; x < hresolu; x++) |
949 |
+ |
if (zscan(y)[x] > tstdist) { |
950 |
+ |
if (adjtest) { |
951 |
+ |
vx = (x+.5)/hresolu + ourview.hoff - .5; |
952 |
+ |
if (zscan(y)[x] <= (ourview.vaft - |
953 |
+ |
ourview.vfore) * |
954 |
+ |
sqrt(vx*vx*ourview.hn2 + yzn2)) |
955 |
+ |
continue; |
956 |
+ |
} |
957 |
+ |
if (averaging) |
958 |
+ |
bzero(sscan(y)[x], sizeof(COLOR)); |
959 |
+ |
else |
960 |
+ |
bzero(pscan(y)[x], sizeof(COLR)); |
961 |
+ |
zscan(y)[x] = 0.0; |
962 |
+ |
} |
963 |
+ |
} |
964 |
+ |
return(1); |
965 |
+ |
} |
966 |
+ |
|
967 |
+ |
|
968 |
+ |
addblur() /* add to blurred picture */ |
969 |
+ |
{ |
970 |
+ |
COLOR cval; |
971 |
+ |
double d; |
972 |
+ |
register int i; |
973 |
+ |
|
974 |
+ |
if (!blurring) |
975 |
+ |
return(0); |
976 |
+ |
i = hresolu*vresolu; |
977 |
+ |
if (nvavg < 2) |
978 |
+ |
if (averaging) |
979 |
+ |
while (i--) { |
980 |
+ |
copycolor(ourbpict[i], ourspict[i]); |
981 |
+ |
d = 1.0/ourweigh[i]; |
982 |
+ |
scalecolor(ourbpict[i], d); |
983 |
+ |
} |
984 |
+ |
else |
985 |
+ |
while (i--) |
986 |
+ |
colr_color(ourbpict[i], ourpict[i]); |
987 |
+ |
else |
988 |
+ |
if (averaging) |
989 |
+ |
while (i--) { |
990 |
+ |
copycolor(cval, ourspict[i]); |
991 |
+ |
d = 1.0/ourweigh[i]; |
992 |
+ |
scalecolor(cval, d); |
993 |
+ |
addcolor(ourbpict[i], cval); |
994 |
+ |
} |
995 |
+ |
else |
996 |
+ |
while (i--) { |
997 |
+ |
colr_color(cval, ourpict[i]); |
998 |
+ |
addcolor(ourbpict[i], cval); |
999 |
+ |
} |
1000 |
+ |
/* print view */ |
1001 |
+ |
printf("VIEW%d:", nvavg); |
1002 |
+ |
fprintview(&ourview, stdout); |
1003 |
+ |
putchar('\n'); |
1004 |
+ |
return(1); |
1005 |
+ |
} |
1006 |
+ |
|
1007 |
+ |
|
1008 |
+ |
writepicture() /* write out picture (alters buffer) */ |
1009 |
+ |
{ |
1010 |
|
int y; |
1011 |
+ |
register int x; |
1012 |
+ |
double d; |
1013 |
|
|
1014 |
|
fprtresolu(hresolu, vresolu, stdout); |
1015 |
|
for (y = vresolu-1; y >= 0; y--) |
1016 |
< |
if (fwritecolrs(pscan(y), hresolu, stdout) < 0) |
1017 |
< |
syserror(); |
1016 |
> |
if (blurring) { |
1017 |
> |
for (x = 0; x < hresolu; x++) { /* compute avg. */ |
1018 |
> |
d = rexpadj/nvavg; |
1019 |
> |
scalecolor(bscan(y)[x], d); |
1020 |
> |
} |
1021 |
> |
if (fwritescan(bscan(y), hresolu, stdout) < 0) |
1022 |
> |
syserror(progname); |
1023 |
> |
} else if (averaging) { |
1024 |
> |
for (x = 0; x < hresolu; x++) { /* average pixels */ |
1025 |
> |
d = rexpadj/wscan(y)[x]; |
1026 |
> |
scalecolor(sscan(y)[x], d); |
1027 |
> |
} |
1028 |
> |
if (fwritescan(sscan(y), hresolu, stdout) < 0) |
1029 |
> |
syserror(progname); |
1030 |
> |
} else { |
1031 |
> |
if (expadj) |
1032 |
> |
shiftcolrs(pscan(y), hresolu, expadj); |
1033 |
> |
if (fwritecolrs(pscan(y), hresolu, stdout) < 0) |
1034 |
> |
syserror(progname); |
1035 |
> |
} |
1036 |
|
} |
1037 |
|
|
1038 |
|
|
1039 |
< |
writedistance(fname) /* write out z file */ |
1039 |
> |
writedistance(fname) /* write out z file (alters buffer) */ |
1040 |
|
char *fname; |
1041 |
|
{ |
1042 |
< |
extern double sqrt(); |
1043 |
< |
int donorm = normdist && ourview.type == VT_PER; |
1042 |
> |
int donorm = normdist & !zisnorm ? 1 : |
1043 |
> |
ourview.type == VT_PER & !normdist & zisnorm ? -1 : 0; |
1044 |
|
int fd; |
1045 |
|
int y; |
641 |
– |
float *zout; |
1046 |
|
|
1047 |
< |
if ((fd = open(fname, O_WRONLY|O_CREAT|O_TRUNC, 0666)) == -1) { |
1048 |
< |
perror(fname); |
645 |
< |
exit(1); |
646 |
< |
} |
647 |
< |
if (donorm |
648 |
< |
&& (zout = (float *)malloc(hresolu*sizeof(float))) == NULL) |
649 |
< |
syserror(); |
1047 |
> |
if ((fd = open(fname, O_WRONLY|O_CREAT|O_TRUNC, 0666)) == -1) |
1048 |
> |
syserror(fname); |
1049 |
|
for (y = vresolu-1; y >= 0; y--) { |
1050 |
|
if (donorm) { |
1051 |
< |
double vx, yzn2; |
1051 |
> |
double vx, yzn2, d; |
1052 |
|
register int x; |
1053 |
|
yzn2 = (y+.5)/vresolu + ourview.voff - .5; |
1054 |
|
yzn2 = 1. + yzn2*yzn2*ourview.vn2; |
1055 |
|
for (x = 0; x < hresolu; x++) { |
1056 |
|
vx = (x+.5)/hresolu + ourview.hoff - .5; |
1057 |
< |
zout[x] = zscan(y)[x] |
1058 |
< |
* sqrt(vx*vx*ourview.hn2 + yzn2); |
1057 |
> |
d = sqrt(vx*vx*ourview.hn2 + yzn2); |
1058 |
> |
if (donorm > 0) |
1059 |
> |
zscan(y)[x] *= d; |
1060 |
> |
else |
1061 |
> |
zscan(y)[x] /= d; |
1062 |
|
} |
661 |
– |
} else |
662 |
– |
zout = zscan(y); |
663 |
– |
if (write(fd, (char *)zout, hresolu*sizeof(float)) |
664 |
– |
< hresolu*sizeof(float)) { |
665 |
– |
perror(fname); |
666 |
– |
exit(1); |
1063 |
|
} |
1064 |
+ |
if (write(fd, (char *)zscan(y), hresolu*sizeof(float)) |
1065 |
+ |
< hresolu*sizeof(float)) |
1066 |
+ |
syserror(fname); |
1067 |
|
} |
669 |
– |
if (donorm) |
670 |
– |
free((char *)zout); |
1068 |
|
close(fd); |
1069 |
|
} |
1070 |
|
|
1071 |
|
|
675 |
– |
isfloat(s) /* see if string is floating number */ |
676 |
– |
register char *s; |
677 |
– |
{ |
678 |
– |
for ( ; *s; s++) |
679 |
– |
if ((*s < '0' || *s > '9') && *s != '.' && *s != '-' |
680 |
– |
&& *s != 'e' && *s != 'E' && *s != '+') |
681 |
– |
return(0); |
682 |
– |
return(1); |
683 |
– |
} |
684 |
– |
|
685 |
– |
|
1072 |
|
backfill(x, y) /* fill pixel with background */ |
1073 |
|
int x, y; |
1074 |
|
{ |
1075 |
< |
register BYTE *dest = pscan(y)[x]; |
1076 |
< |
|
1077 |
< |
copycolr(dest, backcolr); |
1075 |
> |
if (averaging) { |
1076 |
> |
copycolor(sscan(y)[x], backcolor); |
1077 |
> |
wscan(y)[x] = 1; |
1078 |
> |
} else |
1079 |
> |
copycolr(pscan(y)[x], backcolr); |
1080 |
|
zscan(y)[x] = backz; |
1081 |
|
} |
1082 |
|
|
1098 |
|
cp = combuf; |
1099 |
|
wp = argv; |
1100 |
|
for ( ; ; ) { |
1101 |
< |
while (isspace(*cp)) cp++; |
1102 |
< |
if (!*cp) break; |
1103 |
< |
*wp++ = cp; |
1104 |
< |
while (!isspace(*cp)) |
1105 |
< |
if (!*cp++) goto done; |
1106 |
< |
*cp++ = '\0'; |
1101 |
> |
while (isspace(*cp)) /* nullify spaces */ |
1102 |
> |
*cp++ = '\0'; |
1103 |
> |
if (!*cp) /* all done? */ |
1104 |
> |
break; |
1105 |
> |
*wp++ = cp; /* add argument to list */ |
1106 |
> |
while (*++cp && !isspace(*cp)) |
1107 |
> |
; |
1108 |
|
} |
720 |
– |
done: |
1109 |
|
*wp = NULL; |
1110 |
|
/* start process */ |
1111 |
|
if ((rval = open_process(PDesc, argv)) < 0) |
1112 |
< |
syserror(); |
1112 |
> |
syserror(progname); |
1113 |
|
if (rval == 0) { |
1114 |
|
fprintf(stderr, "%s: command not found\n", argv[0]); |
1115 |
|
exit(1); |
1149 |
|
float fbuf[6*(PACKSIZ+1)]; |
1150 |
|
register float *fbp; |
1151 |
|
register int i; |
1152 |
+ |
double vx, vy; |
1153 |
|
|
1154 |
+ |
if (queuesiz == 0) |
1155 |
+ |
return; |
1156 |
|
fbp = fbuf; |
1157 |
|
for (i = 0; i < queuesiz; i++) { |
1158 |
|
viewray(orig, dir, &ourview, |
1177 |
|
fbp[1] *= ourexp; |
1178 |
|
fbp[2] *= ourexp; |
1179 |
|
} |
1180 |
< |
setcolr(pscan(queue[i][1])[queue[i][0]], |
1181 |
< |
fbp[0], fbp[1], fbp[2]); |
1182 |
< |
zscan(queue[i][1])[queue[i][0]] = fbp[3]; |
1180 |
> |
if (averaging) { |
1181 |
> |
setcolor(sscan(queue[i][1])[queue[i][0]], |
1182 |
> |
fbp[0], fbp[1], fbp[2]); |
1183 |
> |
wscan(queue[i][1])[queue[i][0]] = 1; |
1184 |
> |
} else |
1185 |
> |
setcolr(pscan(queue[i][1])[queue[i][0]], |
1186 |
> |
fbp[0], fbp[1], fbp[2]); |
1187 |
> |
if (zisnorm) |
1188 |
> |
zscan(queue[i][1])[queue[i][0]] = fbp[3]; |
1189 |
> |
else { |
1190 |
> |
vx = (queue[i][0]+.5)/hresolu + ourview.hoff - .5; |
1191 |
> |
vy = (queue[i][1]+.5)/vresolu + ourview.voff - .5; |
1192 |
> |
zscan(queue[i][1])[queue[i][0]] = fbp[3] / sqrt(1. + |
1193 |
> |
vx*vx*ourview.hn2 + vy*vy*ourview.vn2); |
1194 |
> |
} |
1195 |
|
fbp += 4; |
1196 |
|
} |
1197 |
|
queuesiz = 0; |
1198 |
|
} |
1199 |
|
|
1200 |
|
|
1201 |
< |
syserror() /* report error and exit */ |
1201 |
> |
syserror(s) /* report error and exit */ |
1202 |
> |
char *s; |
1203 |
|
{ |
1204 |
< |
perror(progname); |
1204 |
> |
perror(s); |
1205 |
|
exit(1); |
1206 |
|
} |