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root/radiance/ray/src/gen/mkillum3.c
Revision: 2.9
Committed: Sun Nov 16 10:29:38 2003 UTC (20 years, 4 months ago) by schorsch
Content type: text/plain
Branch: MAIN
Changes since 2.8: +88 -48 lines
Log Message:
Continued ANSIfication and reduced other compile warnings.

File Contents

# User Rev Content
1 greg 1.1 #ifndef lint
2 greg 2.8 static const char RCSid[] = "$Id";
3 greg 1.1 #endif
4     /*
5     * Routines to print mkillum objects
6     */
7    
8     #include "mkillum.h"
9    
10 greg 1.7 #define brt(col) (.263*(col)[0]+.655*(col)[1]+.082*(col)[2])
11 greg 1.1
12     char DATORD[] = "RGB"; /* data ordering */
13     char DATSUF[] = ".dat"; /* data file suffix */
14     char DSTSUF[] = ".dist"; /* distribution suffix */
15     char FNCFNM[] = "illum.cal"; /* function file name */
16    
17 schorsch 2.9 void compinv(float *rinv, float *rp, int m);
18     void colorout(int p, float *da, int n, int m, double mult, FILE *fp);
19     void fputnum(double d, FILE *fp);
20     void brightout(float *da, int n, int m, double mult, FILE *fp);
21     void fputeol(FILE *fp);
22     void compavg(float col[3], float *da, int n);
23     char * dfname(struct illum_args *il, int c);
24     FILE * dfopen(struct illum_args *il, int c);
25 greg 1.1
26 schorsch 2.9
27     void
28     printobj( /* print out an object */
29     char *mod,
30     register OBJREC *obj
31     )
32 greg 1.1 {
33     register int i;
34    
35 greg 2.3 if (issurface(obj->otype) && !strcmp(mod, VOIDID))
36     return; /* don't print void surfaces */
37 greg 1.1 printf("\n%s %s %s", mod, ofun[obj->otype].funame, obj->oname);
38     printf("\n%d", obj->oargs.nsargs);
39     for (i = 0; i < obj->oargs.nsargs; i++)
40     printf(" %s", obj->oargs.sarg[i]);
41     #ifdef IARGS
42     printf("\n%d", obj->oargs.niargs);
43     for (i = 0; i < obj->oargs.niargs; i++)
44     printf(" %d", obj->oargs.iarg[i]);
45     #else
46     printf("\n0");
47     #endif
48     printf("\n%d", obj->oargs.nfargs);
49     for (i = 0; i < obj->oargs.nfargs; i++) {
50     if (i%3 == 0)
51     putchar('\n');
52     printf(" %18.12g", obj->oargs.farg[i]);
53     }
54     putchar('\n');
55     }
56    
57    
58     char *
59 schorsch 2.9 dfname( /* return data file name */
60     struct illum_args *il,
61     int c
62     )
63 greg 1.1 {
64     char fname[MAXSTR];
65     register char *s;
66    
67     s = strcpy(fname, il->datafile);
68     s += strlen(s);
69     if (c) *s++ = c;
70     if (il->dfnum > 0) {
71     sprintf(s, "%d", il->dfnum);
72     s += strlen(s);
73     }
74     strcpy(s, DATSUF);
75     return(getpath(fname, NULL, 0));
76     }
77    
78    
79     FILE *
80 schorsch 2.9 dfopen( /* open data file */
81     register struct illum_args *il,
82     int c
83     )
84 greg 1.1 {
85     char *fn;
86     FILE *fp;
87     /* get a usable file name */
88     for (fn = dfname(il, c);
89     !(il->flags & IL_DATCLB) && access(fn, F_OK) == 0;
90     fn = dfname(il, c))
91     il->dfnum++;
92     /* open it for writing */
93     if ((fp = fopen(fn, "w")) == NULL) {
94     sprintf(errmsg, "cannot open data file \"%s\"", fn);
95     error(SYSTEM, errmsg);
96     }
97     return(fp);
98     }
99    
100    
101 schorsch 2.9 extern void
102     flatout( /* write hemispherical distribution */
103     struct illum_args *il,
104     float *da,
105     int n,
106     int m,
107     FVECT u,
108     FVECT v,
109     FVECT w
110     )
111 greg 1.1 {
112 greg 2.5 float *Ninv;
113 greg 1.1 FILE *dfp;
114     int i;
115    
116 greg 2.5 if ((Ninv = (float *)malloc(3*m*sizeof(float))) == NULL)
117     error(SYSTEM, "out of memory in flatout");
118     compinv(Ninv, da, m);
119 greg 1.1 if (il->flags & IL_COLDST) {
120     printf("\n%s %s %s%s", VOIDID, ofun[PAT_CDATA].funame,
121     il->matname, DSTSUF);
122 greg 2.5 printf("\n9 red green blue");
123 greg 1.1 for (i = 0; i < 3; i++) {
124     dfp = dfopen(il, DATORD[i]);
125 greg 1.6 fprintf(dfp, "2\n%f %f %d\n%f %f %d\n",
126 greg 2.5 1.+.5/n, .5/n, n+1,
127 greg 1.6 0., 2.*PI, m+1);
128 greg 2.5 colorout(i, Ninv, 1, m, 1./il->nsamps/il->col[i], dfp);
129 greg 1.6 colorout(i, da, n, m, 1./il->nsamps/il->col[i], dfp);
130 greg 2.5 fputeol(dfp);
131 greg 1.1 fclose(dfp);
132     printf(" %s", dfname(il, DATORD[i]));
133     }
134     } else {
135     printf("\n%s %s %s%s", VOIDID, ofun[PAT_BDATA].funame,
136     il->matname, DSTSUF);
137 greg 2.5 printf("\n5 noneg");
138 greg 1.1 dfp = dfopen(il, 0);
139 greg 2.6 fprintf(dfp, "2\n%f %f %d\n%f %f %d\n",
140     1.+.5/n, .5/n, n+1,
141 greg 1.6 0., 2.*PI, m+1);
142 greg 2.5 brightout(Ninv, 1, m, 1./il->nsamps/brt(il->col), dfp);
143 greg 1.6 brightout(da, n, m, 1./il->nsamps/brt(il->col), dfp);
144 greg 2.5 fputeol(dfp);
145 greg 1.1 fclose(dfp);
146     printf(" %s", dfname(il, 0));
147     }
148     printf("\n\t%s il_alth il_azih", FNCFNM);
149 greg 2.5 printf("\n0\n9\n");
150 greg 1.1 printf("\t%f\t%f\t%f\n", u[0], u[1], u[2]);
151     printf("\t%f\t%f\t%f\n", v[0], v[1], v[2]);
152     printf("\t%f\t%f\t%f\n", w[0], w[1], w[2]);
153     il->dfnum++;
154 greg 2.7 free((void *)Ninv);
155 greg 1.1 }
156    
157    
158 schorsch 2.9 extern void
159     roundout( /* write spherical distribution */
160     struct illum_args *il,
161     float *da,
162     int n,
163     int m
164     )
165 greg 1.1 {
166 greg 2.5 float *Ninv, *Sinv;
167 greg 1.1 FILE *dfp;
168     int i;
169    
170 greg 2.5 if ((Ninv = (float *)malloc(3*m*sizeof(float))) == NULL ||
171     (Sinv = (float *)malloc(3*m*sizeof(float))) == NULL)
172 greg 2.6 error(SYSTEM, "out of memory in roundout");
173 greg 2.5 compinv(Ninv, da, m);
174     compinv(Sinv, da+3*m*(n-1), m);
175 greg 1.1 if (il->flags & IL_COLDST) {
176     printf("\n%s %s %s%s", VOIDID, ofun[PAT_CDATA].funame,
177     il->matname, DSTSUF);
178 greg 2.5 printf("\n9 red green blue");
179 greg 1.1 for (i = 0; i < 3; i++) {
180     dfp = dfopen(il, DATORD[i]);
181 greg 1.6 fprintf(dfp, "2\n%f %f %d\n%f %f %d\n",
182 greg 2.5 1.+1./n, -1.-1./n, n+2,
183 greg 1.6 0., 2.*PI, m+1);
184 greg 2.5 colorout(i, Ninv, 1, m, 1./il->nsamps/il->col[i], dfp);
185 greg 1.6 colorout(i, da, n, m, 1./il->nsamps/il->col[i], dfp);
186 greg 2.5 colorout(i, Sinv, 1, m, 1./il->nsamps/il->col[i], dfp);
187     fputeol(dfp);
188 greg 1.1 fclose(dfp);
189     printf(" %s", dfname(il, DATORD[i]));
190     }
191     } else {
192     printf("\n%s %s %s%s", VOIDID, ofun[PAT_BDATA].funame,
193     il->matname, DSTSUF);
194 greg 2.5 printf("\n5 noneg");
195 greg 1.1 dfp = dfopen(il, 0);
196 greg 2.6 fprintf(dfp, "2\n%f %f %d\n%f %f %d\n",
197     1.+1./n, -1.-1./n, n+2,
198 greg 1.6 0., 2.*PI, m+1);
199 greg 2.5 brightout(Ninv, 1, m, 1./il->nsamps/brt(il->col), dfp);
200 greg 1.6 brightout(da, n, m, 1./il->nsamps/brt(il->col), dfp);
201 greg 2.5 brightout(Sinv, 1, m, 1./il->nsamps/brt(il->col), dfp);
202     fputeol(dfp);
203 greg 1.1 fclose(dfp);
204     printf(" %s", dfname(il, 0));
205     }
206     printf("\n\t%s il_alt il_azi", FNCFNM);
207 greg 2.5 printf("\n0\n0\n");
208 greg 1.1 il->dfnum++;
209 greg 2.7 free((void *)Ninv);
210     free((void *)Sinv);
211 greg 1.2 }
212    
213    
214 schorsch 2.9 extern void
215     illumout( /* print illum object */
216     register struct illum_args *il,
217     OBJREC *ob
218     )
219 greg 1.2 {
220     double cout[3];
221    
222 greg 1.4 if (il->sampdens <= 0)
223     printf("\n%s ", VOIDID);
224     else
225     printf("\n%s%s ", il->matname, DSTSUF);
226     printf("%s %s", ofun[il->flags&IL_LIGHT?MAT_LIGHT:MAT_ILLUM].funame,
227 greg 1.2 il->matname);
228     if (il->flags & IL_LIGHT || !strcmp(il->altmat,VOIDID))
229     printf("\n0");
230     else
231     printf("\n1 %s", il->altmat);
232     if (il->flags & IL_COLAVG) {
233     cout[0] = il->col[0];
234     cout[1] = il->col[1];
235     cout[2] = il->col[2];
236     } else {
237     cout[0] = cout[1] = cout[2] = brt(il->col);
238     }
239 greg 1.3 printf("\n0\n3 %f %f %f\n", cout[0], cout[1], cout[2]);
240 greg 1.2
241     printobj(il->matname, ob);
242 greg 1.1 }
243    
244    
245 schorsch 2.9 void
246     compavg( /* compute average for set of data values */
247     float col[3],
248     register float *da,
249     int n
250     )
251 greg 1.1 {
252     register int i;
253    
254 greg 2.4 col[0] = col[1] = col[2] = 0.;
255 greg 1.1 i = n;
256     while (i-- > 0) {
257 greg 2.4 col[0] += *da++;
258     col[1] += *da++;
259     col[2] += *da++;
260 greg 1.1 }
261     for (i = 0; i < 3; i++)
262 greg 2.5 col[i] /= (double)n;
263 greg 2.4 }
264 greg 1.5
265 greg 2.4
266 schorsch 2.9 void
267     compinv( /* compute other side of row average */
268     register float *rinv,
269     register float *rp,
270     int m
271     )
272 greg 2.5 {
273     float avg[3];
274    
275     compavg(avg, rp, m); /* row average */
276     while (m-- > 0) {
277     *rinv++ = 2.*avg[0] - *rp++;
278     *rinv++ = 2.*avg[1] - *rp++;
279     *rinv++ = 2.*avg[2] - *rp++;
280     }
281     }
282    
283    
284 schorsch 2.9 extern int
285     average( /* evaluate average value for distribution */
286     register struct illum_args *il,
287     float *da,
288     int n
289     )
290 greg 2.4 {
291 greg 2.5 compavg(il->col, da, n); /* average */
292     if (il->nsamps > 1) {
293     il->col[0] /= (double)il->nsamps;
294     il->col[1] /= (double)il->nsamps;
295     il->col[2] /= (double)il->nsamps;
296     }
297 greg 2.4 /* brighter than minimum? */
298 greg 1.6 return(brt(il->col) > il->minbrt+FTINY);
299 greg 1.1 }
300    
301    
302 greg 1.6 static int colmcnt = 0; /* count of columns written */
303    
304 schorsch 2.9 void
305     fputnum( /* put out a number to fp */
306     double d,
307     FILE *fp
308     )
309 greg 1.6 {
310 greg 2.5 if (colmcnt++ % 5 == 0)
311 greg 1.6 putc('\n', fp);
312     fprintf(fp, " %11e", d);
313     }
314    
315    
316 schorsch 2.9 void
317     fputeol( /* write end of line to fp */
318     register FILE *fp
319     )
320 greg 1.6 {
321     putc('\n', fp);
322     colmcnt = 0;
323     }
324    
325    
326 schorsch 2.9 void
327     colorout( /* put out color distribution data */
328     int p,
329     register float *da,
330     int n,
331     int m,
332     double mult,
333     FILE *fp
334     )
335 greg 1.1 {
336 greg 1.6 register int i, j;
337 greg 1.1
338     for (i = 0; i < n; i++) {
339 greg 1.6 for (j = 0; j < m; j++) {
340     fputnum(mult*da[p], fp);
341     da += 3;
342     }
343     fputnum(mult*da[p-3*m], fp); /* wrap phi */
344 greg 1.1 }
345     }
346    
347    
348 schorsch 2.9 void
349     brightout( /* put out brightness distribution data */
350     register float *da,
351     int n,
352     int m,
353     double mult,
354     FILE *fp
355     )
356 greg 1.1 {
357 greg 1.6 register int i, j;
358 greg 1.1
359     for (i = 0; i < n; i++) {
360 greg 1.6 for (j = 0; j < m; j++) {
361     fputnum(mult*brt(da), fp);
362     da += 3;
363     }
364     fputnum(mult*brt(da-3*m), fp); /* wrap phi */
365 greg 1.1 }
366     }