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root/radiance/ray/src/gen/mkillum3.c
Revision: 2.8
Committed: Mon Mar 10 17:26:26 2003 UTC (21 years ago) by greg
Content type: text/plain
Branch: MAIN
CVS Tags: rad3R5
Changes since 2.7: +1 -2 lines
Log Message:
Compile fixes for Linux

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