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root/radiance/ray/src/common/image.c
Revision: 2.29
Committed: Tue Jan 18 00:33:16 2005 UTC (19 years, 3 months ago) by greg
Content type: text/plain
Branch: MAIN
Changes since 2.28: +10 -5 lines
Log Message: 
Added -pd option for depth-of-field sampling and -vd focal distance entry

File Contents

# User Rev Content
1 greg 1.1 #ifndef lint
2 greg 2.29 static const char RCSid[] = "$Id: image.c,v 2.28 2004/06/08 19:48:29 greg Exp $";
3 greg 1.1 #endif
4     /*
5     * image.c - routines for image generation.
6 greg 2.16 *
7     * External symbols declared in view.h
8     */
9    
10 greg 2.17 #include "copyright.h"
11 greg 1.1
12 schorsch 2.22 #include "rtio.h"
13 greg 2.28 #include "rtmath.h"
14 greg 2.27 #include "paths.h"
15 greg 1.1 #include "view.h"
16    
17 greg 2.4
18 greg 2.11 #define FEQ(x,y) (fabs((x)-(y)) <= FTINY)
19     #define VEQ(v,w) (FEQ((v)[0],(w)[0]) && FEQ((v)[1],(w)[1]) \
20     && FEQ((v)[2],(w)[2]))
21    
22 greg 1.5 VIEW stdview = STDVIEW; /* default view parameters */
23 greg 1.1
24 schorsch 2.26 static gethfunc gethview;
25    
26 greg 1.1
27     char *
28 greg 1.5 setview(v) /* set hvec and vvec, return message on error */
29     register VIEW *v;
30 greg 1.3 {
31 greg 1.12 static char ill_horiz[] = "illegal horizontal view size";
32     static char ill_vert[] = "illegal vertical view size";
33    
34 gwlarson 2.15 if (v->vaft < -FTINY || (v->vaft > FTINY && v->vaft <= v->vfore))
35 greg 2.7 return("illegal fore/aft clipping plane");
36    
37 greg 2.29 v->vdist *= normalize(v->vdir); /* normalize direction */
38     if (v->vdist == 0.0)
39 greg 1.1 return("zero view direction");
40    
41 greg 1.14 if (normalize(v->vup) == 0.0) /* normalize view up */
42     return("zero view up vector");
43    
44 greg 1.5 fcross(v->hvec, v->vdir, v->vup); /* compute horiz dir */
45    
46     if (normalize(v->hvec) == 0.0)
47 greg 1.14 return("view up parallel to view direction");
48 greg 1.1
49 greg 1.5 fcross(v->vvec, v->hvec, v->vdir); /* compute vert dir */
50    
51 greg 1.12 if (v->horiz <= FTINY)
52     return(ill_horiz);
53     if (v->vert <= FTINY)
54     return(ill_vert);
55    
56     switch (v->type) {
57     case VT_PAR: /* parallel view */
58 greg 1.5 v->hn2 = v->horiz;
59 greg 1.12 v->vn2 = v->vert;
60     break;
61     case VT_PER: /* perspective view */
62     if (v->horiz >= 180.0-FTINY)
63     return(ill_horiz);
64     if (v->vert >= 180.0-FTINY)
65     return(ill_vert);
66 greg 1.5 v->hn2 = 2.0 * tan(v->horiz*(PI/180.0/2.0));
67 greg 1.12 v->vn2 = 2.0 * tan(v->vert*(PI/180.0/2.0));
68     break;
69 greg 2.9 case VT_CYL: /* cylindrical panorama */
70     if (v->horiz > 360.0+FTINY)
71     return(ill_horiz);
72     if (v->vert >= 180.0-FTINY)
73     return(ill_vert);
74     v->hn2 = v->horiz * (PI/180.0);
75     v->vn2 = 2.0 * tan(v->vert*(PI/180.0/2.0));
76     break;
77 greg 1.12 case VT_ANG: /* angular fisheye */
78     if (v->horiz > 360.0+FTINY)
79     return(ill_horiz);
80     if (v->vert > 360.0+FTINY)
81     return(ill_vert);
82 greg 2.9 v->hn2 = v->horiz * (PI/180.0);
83     v->vn2 = v->vert * (PI/180.0);
84 greg 1.12 break;
85     case VT_HEM: /* hemispherical fisheye */
86     if (v->horiz > 180.0+FTINY)
87     return(ill_horiz);
88     if (v->vert > 180.0+FTINY)
89     return(ill_vert);
90     v->hn2 = 2.0 * sin(v->horiz*(PI/180.0/2.0));
91     v->vn2 = 2.0 * sin(v->vert*(PI/180.0/2.0));
92     break;
93     default:
94 greg 1.1 return("unknown view type");
95 greg 1.12 }
96 greg 1.13 if (v->type != VT_ANG) {
97 greg 2.9 if (v->type != VT_CYL) {
98     v->hvec[0] *= v->hn2;
99     v->hvec[1] *= v->hn2;
100     v->hvec[2] *= v->hn2;
101     }
102 greg 1.12 v->vvec[0] *= v->vn2;
103     v->vvec[1] *= v->vn2;
104     v->vvec[2] *= v->vn2;
105     }
106 greg 1.5 v->hn2 *= v->hn2;
107     v->vn2 *= v->vn2;
108 greg 1.1
109     return(NULL);
110     }
111    
112    
113 greg 2.16 void
114 greg 1.7 normaspect(va, ap, xp, yp) /* fix pixel aspect or resolution */
115     double va; /* view aspect ratio */
116     double *ap; /* pixel aspect in (or out if 0) */
117     int *xp, *yp; /* x and y resolution in (or out if *ap!=0) */
118 greg 1.6 {
119     if (*ap <= FTINY)
120 greg 1.7 *ap = va * *xp / *yp; /* compute pixel aspect */
121 greg 1.6 else if (va * *xp > *ap * *yp)
122 greg 1.10 *xp = *yp / va * *ap + .5; /* reduce x resolution */
123 greg 1.6 else
124 greg 1.10 *yp = *xp * va / *ap + .5; /* reduce y resolution */
125 greg 1.6 }
126    
127    
128 greg 2.7 double
129 greg 1.5 viewray(orig, direc, v, x, y) /* compute ray origin and direction */
130 greg 1.1 FVECT orig, direc;
131     register VIEW *v;
132     double x, y;
133     {
134 greg 1.12 double d, z;
135    
136 greg 1.5 x += v->hoff - 0.5;
137     y += v->voff - 0.5;
138 greg 1.1
139 greg 1.12 switch(v->type) {
140     case VT_PAR: /* parallel view */
141 greg 2.7 orig[0] = v->vp[0] + v->vfore*v->vdir[0]
142     + x*v->hvec[0] + y*v->vvec[0];
143     orig[1] = v->vp[1] + v->vfore*v->vdir[1]
144     + x*v->hvec[1] + y*v->vvec[1];
145     orig[2] = v->vp[2] + v->vfore*v->vdir[2]
146     + x*v->hvec[2] + y*v->vvec[2];
147 greg 1.1 VCOPY(direc, v->vdir);
148 greg 2.8 return(v->vaft > FTINY ? v->vaft - v->vfore : 0.0);
149 greg 1.12 case VT_PER: /* perspective view */
150 greg 1.5 direc[0] = v->vdir[0] + x*v->hvec[0] + y*v->vvec[0];
151     direc[1] = v->vdir[1] + x*v->hvec[1] + y*v->vvec[1];
152     direc[2] = v->vdir[2] + x*v->hvec[2] + y*v->vvec[2];
153 greg 2.7 orig[0] = v->vp[0] + v->vfore*direc[0];
154     orig[1] = v->vp[1] + v->vfore*direc[1];
155     orig[2] = v->vp[2] + v->vfore*direc[2];
156     d = normalize(direc);
157 greg 2.8 return(v->vaft > FTINY ? (v->vaft - v->vfore)*d : 0.0);
158 greg 1.12 case VT_HEM: /* hemispherical fisheye */
159 greg 1.13 z = 1.0 - x*x*v->hn2 - y*y*v->vn2;
160 greg 1.12 if (z < 0.0)
161 greg 2.7 return(-1.0);
162 greg 1.12 z = sqrt(z);
163     direc[0] = z*v->vdir[0] + x*v->hvec[0] + y*v->vvec[0];
164     direc[1] = z*v->vdir[1] + x*v->hvec[1] + y*v->vvec[1];
165     direc[2] = z*v->vdir[2] + x*v->hvec[2] + y*v->vvec[2];
166 greg 2.7 orig[0] = v->vp[0] + v->vfore*direc[0];
167     orig[1] = v->vp[1] + v->vfore*direc[1];
168     orig[2] = v->vp[2] + v->vfore*direc[2];
169 greg 2.8 return(v->vaft > FTINY ? v->vaft - v->vfore : 0.0);
170 greg 2.9 case VT_CYL: /* cylindrical panorama */
171     d = x * v->horiz * (PI/180.0);
172     z = cos(d);
173     x = sin(d);
174     direc[0] = z*v->vdir[0] + x*v->hvec[0] + y*v->vvec[0];
175     direc[1] = z*v->vdir[1] + x*v->hvec[1] + y*v->vvec[1];
176     direc[2] = z*v->vdir[2] + x*v->hvec[2] + y*v->vvec[2];
177     orig[0] = v->vp[0] + v->vfore*direc[0];
178     orig[1] = v->vp[1] + v->vfore*direc[1];
179     orig[2] = v->vp[2] + v->vfore*direc[2];
180     d = normalize(direc);
181     return(v->vaft > FTINY ? (v->vaft - v->vfore)*d : 0.0);
182 greg 1.12 case VT_ANG: /* angular fisheye */
183     x *= v->horiz/180.0;
184     y *= v->vert/180.0;
185     d = x*x + y*y;
186     if (d > 1.0)
187 greg 2.7 return(-1.0);
188 greg 1.12 d = sqrt(d);
189     z = cos(PI*d);
190 greg 2.6 d = d <= FTINY ? PI : sqrt(1 - z*z)/d;
191 greg 1.12 x *= d;
192     y *= d;
193     direc[0] = z*v->vdir[0] + x*v->hvec[0] + y*v->vvec[0];
194     direc[1] = z*v->vdir[1] + x*v->hvec[1] + y*v->vvec[1];
195     direc[2] = z*v->vdir[2] + x*v->hvec[2] + y*v->vvec[2];
196 greg 2.7 orig[0] = v->vp[0] + v->vfore*direc[0];
197     orig[1] = v->vp[1] + v->vfore*direc[1];
198     orig[2] = v->vp[2] + v->vfore*direc[2];
199 greg 2.8 return(v->vaft > FTINY ? v->vaft - v->vfore : 0.0);
200 greg 1.1 }
201 greg 2.7 return(-1.0);
202 greg 1.1 }
203    
204    
205 greg 2.16 void
206 greg 1.17 viewloc(ip, v, p) /* find image location for point */
207     FVECT ip;
208 greg 1.3 register VIEW *v;
209     FVECT p;
210     {
211 gregl 2.13 double d, d2;
212 greg 1.3 FVECT disp;
213 greg 1.5
214 greg 1.3 disp[0] = p[0] - v->vp[0];
215     disp[1] = p[1] - v->vp[1];
216     disp[2] = p[2] - v->vp[2];
217    
218 greg 1.12 switch (v->type) {
219     case VT_PAR: /* parallel view */
220 greg 2.7 ip[2] = DOT(disp,v->vdir) - v->vfore;
221 greg 1.13 break;
222 greg 1.12 case VT_PER: /* perspective view */
223 greg 1.11 d = DOT(disp,v->vdir);
224 gregl 2.13 ip[2] = VLEN(disp);
225 greg 1.17 if (d < 0.0) { /* fold pyramid */
226     ip[2] = -ip[2];
227 greg 1.11 d = -d;
228 greg 2.7 }
229     if (d > FTINY) {
230 greg 1.11 d = 1.0/d;
231     disp[0] *= d;
232     disp[1] *= d;
233     disp[2] *= d;
234     }
235 greg 2.7 ip[2] *= (1.0 - v->vfore*d);
236 greg 1.13 break;
237 greg 1.12 case VT_HEM: /* hemispherical fisheye */
238     d = normalize(disp);
239 greg 1.17 if (DOT(disp,v->vdir) < 0.0)
240     ip[2] = -d;
241     else
242     ip[2] = d;
243 greg 2.7 ip[2] -= v->vfore;
244 greg 1.13 break;
245 greg 2.9 case VT_CYL: /* cylindrical panorama */
246     d = DOT(disp,v->hvec);
247 gregl 2.13 d2 = DOT(disp,v->vdir);
248     ip[0] = 180.0/PI * atan2(d,d2) / v->horiz + 0.5 - v->hoff;
249     d = 1.0/sqrt(d*d + d2*d2);
250     ip[1] = DOT(disp,v->vvec)*d/v->vn2 + 0.5 - v->voff;
251     ip[2] = VLEN(disp);
252 gwlarson 2.15 ip[2] *= (1.0 - v->vfore*d);
253 greg 2.9 return;
254 greg 1.12 case VT_ANG: /* angular fisheye */
255 greg 1.17 ip[0] = 0.5 - v->hoff;
256     ip[1] = 0.5 - v->voff;
257 greg 2.7 ip[2] = normalize(disp) - v->vfore;
258 greg 1.12 d = DOT(disp,v->vdir);
259     if (d >= 1.0-FTINY)
260     return;
261     if (d <= -(1.0-FTINY)) {
262 greg 2.7 ip[0] += 180.0/v->horiz;
263 greg 1.12 return;
264     }
265     d = acos(d)/PI / sqrt(1.0 - d*d);
266 greg 1.17 ip[0] += DOT(disp,v->hvec)*d*180.0/v->horiz;
267     ip[1] += DOT(disp,v->vvec)*d*180.0/v->vert;
268 greg 1.12 return;
269 greg 1.3 }
270 greg 1.17 ip[0] = DOT(disp,v->hvec)/v->hn2 + 0.5 - v->hoff;
271     ip[1] = DOT(disp,v->vvec)/v->vn2 + 0.5 - v->voff;
272 greg 1.3 }
273    
274    
275 greg 2.16 void
276 greg 1.17 pix2loc(loc, rp, px, py) /* compute image location from pixel pos. */
277 schorsch 2.18 RREAL loc[2];
278 greg 1.17 register RESOLU *rp;
279     int px, py;
280     {
281     register int x, y;
282    
283 greg 2.16 if (rp->rt & YMAJOR) {
284 greg 1.17 x = px;
285     y = py;
286     } else {
287     x = py;
288     y = px;
289     }
290 greg 2.16 if (rp->rt & XDECR)
291 greg 1.17 x = rp->xr-1 - x;
292 greg 2.16 if (rp->rt & YDECR)
293 greg 1.17 y = rp->yr-1 - y;
294     loc[0] = (x+.5)/rp->xr;
295     loc[1] = (y+.5)/rp->yr;
296     }
297    
298    
299 greg 2.16 void
300 greg 1.17 loc2pix(pp, rp, lx, ly) /* compute pixel pos. from image location */
301     int pp[2];
302     register RESOLU *rp;
303     double lx, ly;
304     {
305     register int x, y;
306    
307     x = lx * rp->xr;
308     y = ly * rp->yr;
309 greg 2.16 if (rp->rt & XDECR)
310 greg 1.17 x = rp->xr-1 - x;
311 greg 2.16 if (rp->rt & YDECR)
312 greg 1.17 y = rp->yr-1 - y;
313 greg 2.16 if (rp->rt & YMAJOR) {
314 greg 1.17 pp[0] = x;
315     pp[1] = y;
316     } else {
317     pp[0] = y;
318     pp[1] = x;
319     }
320     }
321    
322    
323 greg 1.5 int
324     getviewopt(v, ac, av) /* process view argument */
325     register VIEW *v;
326     int ac;
327     register char *av[];
328     {
329 greg 1.16 #define check(c,l) if ((av[0][c]&&av[0][c]!=' ') || \
330     badarg(ac-1,av+1,l)) return(-1)
331 greg 1.5
332 greg 1.9 if (ac <= 0 || av[0][0] != '-' || av[0][1] != 'v')
333 greg 1.5 return(-1);
334     switch (av[0][2]) {
335     case 't': /* type */
336     if (!av[0][3] || av[0][3]==' ')
337     return(-1);
338 greg 1.16 check(4,"");
339 greg 1.5 v->type = av[0][3];
340     return(0);
341     case 'p': /* point */
342 greg 1.16 check(3,"fff");
343 greg 1.5 v->vp[0] = atof(av[1]);
344     v->vp[1] = atof(av[2]);
345     v->vp[2] = atof(av[3]);
346     return(3);
347     case 'd': /* direction */
348 greg 1.16 check(3,"fff");
349 greg 1.5 v->vdir[0] = atof(av[1]);
350     v->vdir[1] = atof(av[2]);
351     v->vdir[2] = atof(av[3]);
352     return(3);
353     case 'u': /* up */
354 greg 1.16 check(3,"fff");
355 greg 1.5 v->vup[0] = atof(av[1]);
356     v->vup[1] = atof(av[2]);
357     v->vup[2] = atof(av[3]);
358     return(3);
359     case 'h': /* horizontal size */
360 greg 1.16 check(3,"f");
361 greg 1.5 v->horiz = atof(av[1]);
362     return(1);
363     case 'v': /* vertical size */
364 greg 1.16 check(3,"f");
365 greg 1.5 v->vert = atof(av[1]);
366     return(1);
367 greg 2.7 case 'o': /* fore clipping plane */
368     check(3,"f");
369     v->vfore = atof(av[1]);
370     return(1);
371     case 'a': /* aft clipping plane */
372     check(3,"f");
373     v->vaft = atof(av[1]);
374     return(1);
375 greg 1.5 case 's': /* shift */
376 greg 1.16 check(3,"f");
377 greg 1.5 v->hoff = atof(av[1]);
378     return(1);
379     case 'l': /* lift */
380 greg 1.16 check(3,"f");
381 greg 1.5 v->voff = atof(av[1]);
382     return(1);
383     default:
384     return(-1);
385     }
386     #undef check
387     }
388    
389    
390     int
391     sscanview(vp, s) /* get view parameters from string */
392     VIEW *vp;
393 greg 1.1 register char *s;
394     {
395 greg 1.5 int ac;
396     char *av[4];
397     int na;
398     int nvopts = 0;
399    
400 greg 2.20 while (*s == ' ')
401 greg 2.19 s++;
402 greg 2.20 if (*s != '-')
403     s = sskip2(s,1);
404 greg 1.9 while (*s) {
405 greg 1.5 ac = 0;
406     do {
407 greg 2.21 if (ac || *s == '-')
408     av[ac++] = s;
409 greg 1.5 while (*s && *s != ' ')
410     s++;
411     while (*s == ' ')
412     s++;
413     } while (*s && ac < 4);
414     if ((na = getviewopt(vp, ac, av)) >= 0) {
415     if (na+1 < ac)
416     s = av[na+1];
417     nvopts++;
418 greg 1.9 } else if (ac > 1)
419     s = av[1];
420     }
421 greg 1.5 return(nvopts);
422 greg 1.1 }
423    
424    
425 greg 2.16 void
426 greg 1.1 fprintview(vp, fp) /* write out view parameters */
427     register VIEW *vp;
428     FILE *fp;
429     {
430     fprintf(fp, " -vt%c", vp->type);
431     fprintf(fp, " -vp %.6g %.6g %.6g", vp->vp[0], vp->vp[1], vp->vp[2]);
432 greg 2.29 fprintf(fp, " -vd %.6g %.6g %.6g", vp->vdir[0]*vp->vdist,
433     vp->vdir[1]*vp->vdist,
434     vp->vdir[2]*vp->vdist);
435 greg 1.1 fprintf(fp, " -vu %.6g %.6g %.6g", vp->vup[0], vp->vup[1], vp->vup[2]);
436     fprintf(fp, " -vh %.6g -vv %.6g", vp->horiz, vp->vert);
437 greg 2.7 fprintf(fp, " -vo %.6g -va %.6g", vp->vfore, vp->vaft);
438 greg 1.9 fprintf(fp, " -vs %.6g -vl %.6g", vp->hoff, vp->voff);
439 greg 2.11 }
440    
441    
442     char *
443     viewopt(vp) /* translate to minimal view string */
444     register VIEW *vp;
445     {
446     static char vwstr[128];
447     register char *cp = vwstr;
448    
449     if (vp->type != stdview.type) {
450     sprintf(cp, " -vt%c", vp->type);
451     cp += strlen(cp);
452     }
453     if (!VEQ(vp->vp,stdview.vp)) {
454     sprintf(cp, " -vp %.6g %.6g %.6g",
455     vp->vp[0], vp->vp[1], vp->vp[2]);
456     cp += strlen(cp);
457     }
458 greg 2.29 if (!FEQ(vp->vdist,stdview.vdist) || !VEQ(vp->vdir,stdview.vdir)) {
459 greg 2.11 sprintf(cp, " -vd %.6g %.6g %.6g",
460 greg 2.29 vp->vdir[0]*vp->vdist,
461     vp->vdir[1]*vp->vdist,
462     vp->vdir[2]*vp->vdist);
463 greg 2.11 cp += strlen(cp);
464     }
465     if (!VEQ(vp->vup,stdview.vup)) {
466     sprintf(cp, " -vu %.6g %.6g %.6g",
467     vp->vup[0], vp->vup[1], vp->vup[2]);
468     cp += strlen(cp);
469     }
470     if (!FEQ(vp->horiz,stdview.horiz)) {
471     sprintf(cp, " -vh %.6g", vp->horiz);
472     cp += strlen(cp);
473     }
474     if (!FEQ(vp->vert,stdview.vert)) {
475     sprintf(cp, " -vv %.6g", vp->vert);
476     cp += strlen(cp);
477     }
478     if (!FEQ(vp->vfore,stdview.vfore)) {
479     sprintf(cp, " -vo %.6g", vp->vfore);
480     cp += strlen(cp);
481     }
482     if (!FEQ(vp->vaft,stdview.vaft)) {
483     sprintf(cp, " -va %.6g", vp->vaft);
484     cp += strlen(cp);
485     }
486     if (!FEQ(vp->hoff,stdview.hoff)) {
487     sprintf(cp, " -vs %.6g", vp->hoff);
488     cp += strlen(cp);
489     }
490     if (!FEQ(vp->voff,stdview.voff)) {
491     sprintf(cp, " -vl %.6g", vp->voff);
492     cp += strlen(cp);
493     }
494     return(vwstr);
495 greg 1.1 }
496    
497    
498 greg 2.3 int
499     isview(s) /* is this a view string? */
500     char *s;
501     {
502 greg 2.25 static char *altname[]={NULL,VIEWSTR,"rpict","rview","rvu","rpiece","pinterp",NULL};
503 greg 2.5 extern char *progname;
504 greg 2.3 register char *cp;
505     register char **an;
506     /* add program name to list */
507 greg 2.5 if (altname[0] == NULL) {
508     for (cp = progname; *cp; cp++)
509     ;
510     while (cp > progname && !ISDIRSEP(cp[-1]))
511     cp--;
512     altname[0] = cp;
513     }
514 greg 2.3 /* skip leading path */
515     cp = s;
516     while (*cp && *cp != ' ')
517     cp++;
518 greg 2.5 while (cp > s && !ISDIRSEP(cp[-1]))
519 greg 2.3 cp--;
520     for (an = altname; *an != NULL; an++)
521     if (!strncmp(*an, cp, strlen(*an)))
522     return(1);
523     return(0);
524     }
525 greg 1.1
526 greg 2.3
527 greg 1.15 struct myview {
528     VIEW *hv;
529     int ok;
530     };
531 greg 1.1
532 greg 1.15
533 gwlarson 2.14 static int
534 schorsch 2.26 gethview( /* get view from header */
535     char *s,
536     void *v
537     )
538 greg 1.1 {
539 schorsch 2.26 if (isview(s) && sscanview(((struct myview*)v)->hv, s) > 0)
540     ((struct myview*)v)->ok++;
541 gwlarson 2.14 return(0);
542 greg 1.1 }
543    
544    
545     int
546 greg 1.17 viewfile(fname, vp, rp) /* get view from file */
547 greg 1.1 char *fname;
548     VIEW *vp;
549 greg 1.17 RESOLU *rp;
550 greg 1.1 {
551 greg 1.15 struct myview mvs;
552 greg 1.1 FILE *fp;
553    
554 greg 2.16 if (fname == NULL || !strcmp(fname, "-"))
555     fp = stdin;
556     else if ((fp = fopen(fname, "r")) == NULL)
557 greg 1.1 return(-1);
558    
559 greg 1.15 mvs.hv = vp;
560     mvs.ok = 0;
561 greg 1.1
562 schorsch 2.26 getheader(fp, gethview, &mvs);
563 greg 1.8
564 greg 1.17 if (rp != NULL && !fgetsresolu(rp, fp))
565 greg 1.15 mvs.ok = 0;
566 greg 1.1
567     fclose(fp);
568    
569 greg 1.15 return(mvs.ok);
570 greg 1.1 }