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root/radiance/ray/src/hd/rhcopy.c
Revision: 3.17
Committed: Thu Jun 26 00:58:10 2003 UTC (20 years, 9 months ago) by schorsch
Content type: text/plain
Branch: MAIN
Changes since 3.16: +2 -2 lines
Log Message:
Abstracted process and path handling for Windows.
Renamed FLOAT to RREAL because of conflict on Windows.
Added conditional compiles for some signal handlers.

File Contents

# User Rev Content
1 gregl 3.1 #ifndef lint
2 schorsch 3.17 static const char RCSid[] = "$Id: rhcopy.c,v 3.16 2003/05/29 16:26:22 greg Exp $";
3 gregl 3.1 #endif
4     /*
5     * Copy data into a holodeck file
6     */
7    
8     #include "holo.h"
9     #include "view.h"
10    
11 gwlarson 3.10 #ifndef BKBSIZE
12     #define BKBSIZE 256 /* beam clump size (kilobytes) */
13 gregl 3.7 #endif
14    
15 gwlarson 3.14 int checkdepth = 1; /* check depth (!-d option)? */
16     int checkrepeats = 0; /* check for repeats (-u option)? */
17 gregl 3.1 int frompicz; /* input from pictures & depth-buffers? */
18     int noutsects; /* number of output sections */
19 gregl 3.2 char obstr, unobstr; /* flag pointer values */
20 gregl 3.1
21     char *progname; /* global argv[0] */
22    
23    
24     main(argc, argv)
25     int argc;
26     char *argv[];
27     {
28     int i;
29    
30     progname = argv[0];
31 gregl 3.5 frompicz = -1;
32     for (i = 2; i < argc && argv[i][0] == '-'; i++)
33     switch (argv[i][1]) {
34 gregl 3.8 case 'u':
35 gregl 3.5 checkrepeats = 1;
36     break;
37 gregl 3.8 case 'd':
38 gregl 3.5 checkdepth = 0;
39     break;
40     case 'h':
41     frompicz = 0;
42     break;
43     case 'p':
44     frompicz = 1;
45     break;
46     default:
47     goto userr;
48     }
49     if (i >= argc || frompicz < 0)
50 gregl 3.1 goto userr;
51 gregl 3.5 if (frompicz && (argc-i)%2)
52 gregl 3.1 goto userr;
53     noutsects = openholo(argv[1], 1);
54 gwlarson 3.10 if (frompicz) {
55 gregl 3.5 for ( ; i < argc; i += 2)
56 gregl 3.1 addpicz(argv[i], argv[i+1]);
57 gwlarson 3.10 } else {
58     if (BKBSIZE*1024*1.5 > hdcachesize)
59     hdcachesize = BKBSIZE*1024*1.5;
60 gregl 3.5 for ( ; i < argc; i++)
61 gregl 3.1 addholo(argv[i]);
62 gwlarson 3.10 }
63 gregl 3.1 quit(0);
64     userr:
65 gregl 3.8 fprintf(stderr, "Usage: %s output.hdk [-u][-d] -h inp1.hdk ..\n",
66 gregl 3.1 progname);
67 gwlarson 3.10 fprintf(stderr, " Or: %s output.hdk [-u][-d] -p inp1.pic inp1.zbf ..\n",
68 gregl 3.5 progname);
69 gregl 3.1 exit(1);
70     }
71    
72    
73 gregl 3.2 #define H_BADF 01
74     #define H_OBST 02
75     #define H_OBSF 04
76    
77 gwlarson 3.9 int
78 gregl 3.2 holheadline(s, hf) /* check holodeck header line */
79 gregl 3.1 register char *s;
80 gregl 3.2 int *hf;
81 gregl 3.1 {
82     char fmt[32];
83    
84     if (formatval(fmt, s)) {
85 gregl 3.2 if (strcmp(fmt, HOLOFMT))
86     *hf |= H_BADF;
87     else
88     *hf &= ~H_BADF;
89 gwlarson 3.9 return(0);
90 gregl 3.1 }
91     if (!strncmp(s, "OBSTRUCTIONS=", 13)) {
92     s += 13;
93     while (*s == ' ') s++;
94     if (*s == 't' | *s == 'T')
95 gregl 3.2 *hf |= H_OBST;
96 gregl 3.1 else if (*s == 'f' | *s == 'F')
97 gregl 3.2 *hf |= H_OBSF;
98 gregl 3.1 else
99     error(WARNING, "bad OBSTRUCTIONS value in holodeck");
100 gwlarson 3.9 return(0);
101 gregl 3.1 }
102 gwlarson 3.9 return(0);
103 gregl 3.1 }
104    
105     int
106     openholo(fname, append) /* open existing holodeck file for i/o */
107     char *fname;
108     int append;
109     {
110     FILE *fp;
111     int fd;
112 gregl 3.2 int hflags = 0;
113 gregl 3.3 long nextloc;
114 gregl 3.1 int n;
115     /* open holodeck file */
116     if ((fp = fopen(fname, append ? "r+" : "r")) == NULL) {
117     sprintf(errmsg, "cannot open \"%s\" for %s", fname,
118     append ? "appending" : "reading");
119     error(SYSTEM, errmsg);
120     }
121     /* check header and magic number */
122 greg 3.15 if (getheader(fp, holheadline, (char *)&hflags) < 0 ||
123 gregl 3.2 hflags&H_BADF || getw(fp) != HOLOMAGIC) {
124 gregl 3.1 sprintf(errmsg, "file \"%s\" not in holodeck format", fname);
125     error(USER, errmsg);
126     }
127     fd = dup(fileno(fp)); /* dup file handle */
128     nextloc = ftell(fp); /* get stdio position */
129     fclose(fp); /* done with stdio */
130     for (n = 0; nextloc > 0L; n++) { /* initialize each section */
131 greg 3.15 lseek(fd, (off_t)nextloc, 0);
132 gregl 3.1 read(fd, (char *)&nextloc, sizeof(nextloc));
133 gregl 3.2 hdinit(fd, NULL)->priv = hflags&H_OBST ? &obstr :
134     hflags&H_OBSF ? &unobstr : (char *)NULL;
135 gregl 3.1 }
136     return(n);
137     }
138    
139 gregl 3.2 #undef H_BADF
140     #undef H_OBST
141     #undef H_OBSF
142 gregl 3.1
143 gregl 3.2
144 gregl 3.1 addray(ro, rd, d, cv) /* add a ray to our output holodeck */
145     FVECT ro, rd;
146     double d;
147     COLR cv;
148     {
149 gregl 3.5 int sn, bi, n;
150 gregl 3.1 register HOLO *hp;
151     GCOORD gc[2];
152     BYTE rr[2][2];
153 gregl 3.5 BEAM *bp;
154 gregl 3.1 double d0, d1;
155 gregl 3.5 unsigned dc;
156 gregl 3.1 register RAYVAL *rv;
157     /* check each output section */
158     for (sn = noutsects; sn--; ) {
159     hp = hdlist[sn];
160     d0 = hdinter(gc, rr, &d1, hp, ro, rd);
161     if (d <= d0 || d1 < -0.001)
162     continue; /* missed section */
163 gregl 3.5 if (checkdepth) { /* check depth */
164     if (hp->priv == &obstr && d0 < -0.001)
165     continue; /* ray starts too late */
166     if (hp->priv == &unobstr && d < 0.999*d1)
167     continue; /* ray ends too soon */
168     }
169     dc = hdcode(hp, d-d0);
170     bi = hdbindex(hp, gc); /* check for duplicates */
171     if (checkrepeats && (bp = hdgetbeam(hp, bi)) != NULL) {
172     for (n = bp->nrm, rv = hdbray(bp); n--; rv++)
173 gwlarson 3.12 if ((hp->priv != NULL || rv->d == dc) &&
174 gregl 3.5 rv->r[0][0] == rr[0][0] &&
175     rv->r[0][1] == rr[0][1] &&
176     rv->r[1][0] == rr[1][0] &&
177     rv->r[1][1] == rr[1][1])
178     break;
179     if (n >= 0)
180     continue; /* found a matching ray */
181     }
182     rv = hdnewrays(hp, bi, 1);
183     rv->d = dc;
184 gregl 3.1 rv->r[0][0] = rr[0][0]; rv->r[0][1] = rr[0][1];
185     rv->r[1][0] = rr[1][0]; rv->r[1][1] = rr[1][1];
186     copycolr(rv->v, cv);
187     }
188     }
189    
190    
191 gwlarson 3.11 static BEAMI *beamdir;
192    
193     static int
194     bpcmp(b1p, b2p) /* compare beam positions on disk */
195     int *b1p, *b2p;
196 gregl 3.1 {
197 greg 3.16 register off_t pdif = beamdir[*b1p].fo - beamdir[*b2p].fo;
198 gwlarson 3.11
199     if (pdif > 0L) return(1);
200     if (pdif < 0L) return(-1);
201     return(0);
202     }
203    
204     static int
205     addclump(hp, bq, nb) /* transfer the given clump and free */
206     HOLO *hp;
207     int *bq, nb;
208     {
209 gregl 3.1 GCOORD gc[2];
210     FVECT ro, rd;
211     double d;
212 gwlarson 3.11 int i;
213 gregl 3.1 register int k;
214 gwlarson 3.11 register BEAM *bp;
215     /* sort based on file position */
216     beamdir = hp->bi;
217     qsort((char *)bq, nb, sizeof(*bq), bpcmp);
218     /* transfer each beam */
219     for (i = 0; i < nb; i++) {
220     bp = hdgetbeam(hp, bq[i]);
221     hdbcoord(gc, hp, bq[i]);
222     /* add each ray to output */
223     for (k = bp->nrm; k--; ) {
224     d = hdray(ro, rd, hp, gc, hdbray(bp)[k].r);
225     if (hp->priv == &unobstr)
226     VSUM(ro, ro, rd, d);
227     else
228     d = 0.;
229     d = hddepth(hp, hdbray(bp)[k].d) - d;
230     addray(ro, rd, d, hdbray(bp)[k].v);
231     }
232     hdfreebeam(hp, bq[i]); /* free the beam */
233 gwlarson 3.10 }
234 gwlarson 3.11 return(0);
235 gwlarson 3.10 }
236    
237     addholo(hdf) /* add a holodeck file */
238     char *hdf;
239     {
240     int fd;
241 gregl 3.4 /* open the holodeck for reading */
242     openholo(hdf, 0);
243 gregl 3.1 fd = hdlist[noutsects]->fd; /* remember the file handle */
244 gwlarson 3.10 while (hdlist[noutsects] != NULL) { /* load each section */
245     /* clump the beams */
246 gwlarson 3.11 clumpbeams(hdlist[noutsects], 0, BKBSIZE*1024, addclump);
247 gwlarson 3.10 hddone(hdlist[noutsects]); /* free the section */
248 gregl 3.1 }
249 gwlarson 3.10 close(fd); /* close input file */
250 gwlarson 3.13 hdflush(NULL); /* flush output */
251 gregl 3.1 }
252    
253    
254     struct phead {
255     VIEW vw;
256     double expos;
257     short gotview;
258     short badfmt;
259     short altprims;
260     };
261    
262    
263 gwlarson 3.9 int
264 gregl 3.1 picheadline(s, ph) /* process picture header line */
265     char *s;
266     struct phead *ph;
267     {
268     char fmt[32];
269    
270     if (formatval(fmt, s)) {
271     ph->badfmt = strcmp(fmt, COLRFMT);
272 gwlarson 3.9 return(0);
273 gregl 3.1 }
274     if (isprims(s)) {
275     ph->altprims++; /* don't want to deal with this */
276 gwlarson 3.9 return(0);
277 gregl 3.1 }
278     if (isexpos(s)) {
279     ph->expos *= exposval(s);
280 gwlarson 3.9 return(0);
281 gregl 3.1 }
282     if (isview(s)) {
283     ph->gotview += sscanview(&ph->vw, s);
284 gwlarson 3.9 return(0);
285 gregl 3.1 }
286 gwlarson 3.9 return(0);
287 gregl 3.1 }
288    
289    
290     addpicz(pcf, zbf) /* add a picture + depth-buffer */
291     char *pcf, *zbf;
292     {
293     FILE *pfp;
294     int zfd;
295     COLR *cscn;
296     float *zscn;
297     struct phead phd;
298     int eshft;
299     double emult;
300     RESOLU prs;
301 schorsch 3.17 RREAL vl[2];
302 gregl 3.1 FVECT ro, rd;
303     double aftd;
304     COLOR ctmp;
305     int j;
306     register int i;
307     /* open files */
308     if ((pfp = fopen(pcf, "r")) == NULL) {
309     sprintf(errmsg, "cannot open picture file \"%s\"", pcf);
310     error(SYSTEM, pcf);
311     }
312     if ((zfd = open(zbf, O_RDONLY)) < 0) {
313     sprintf(errmsg, "cannot open depth file \"%s\"", zbf);
314     error(SYSTEM, pcf);
315     }
316     /* load picture header */
317     copystruct(&phd.vw, &stdview);
318     phd.expos = 1.0;
319     phd.badfmt = phd.gotview = phd.altprims = 0;
320 greg 3.15 if (getheader(pfp, picheadline, (char *)&phd) < 0 ||
321 gregl 3.1 phd.badfmt || !fgetsresolu(&prs, pfp)) {
322     sprintf(errmsg, "bad format for picture file \"%s\"", pcf);
323     error(USER, errmsg);
324     }
325     if (!phd.gotview || setview(&phd.vw) != NULL) {
326     sprintf(errmsg, "missing/illegal view in picture \"%s\"",
327     pcf);
328     error(USER, errmsg);
329     }
330     if (phd.altprims) {
331     sprintf(errmsg, "ignoring primary values in picture \"%s\"",
332     pcf);
333     error(WARNING, errmsg);
334     }
335     /* figure out what to do about exposure */
336     if (phd.expos < 0.99 | phd.expos > 1.01) {
337     emult = -log(phd.expos)/log(2.);
338     eshft = emult >= 0. ? emult+.5 : emult-.5;
339     emult -= (double)eshft;
340     if (emult <= 0.01 & emult >= -0.01)
341     emult = -1.;
342     else {
343     emult = 1./phd.expos;
344     eshft = 0;
345     }
346     } else {
347     emult = -1.;
348     eshft = 0;
349     }
350     /* allocate buffers */
351     cscn = (COLR *)malloc(scanlen(&prs)*sizeof(COLR));
352     zscn = (float *)malloc(scanlen(&prs)*sizeof(float));
353     if (cscn == NULL | zscn == NULL)
354     error(SYSTEM, "out of memory in addpicz");
355     /* read and process each scanline */
356     for (j = 0; j < numscans(&prs); j++) {
357     i = scanlen(&prs); /* read colrs */
358     if (freadcolrs(cscn, i, pfp) < 0) {
359     sprintf(errmsg, "error reading picture \"%s\"", pcf);
360     error(USER, errmsg);
361     }
362     if (eshft) /* shift exposure */
363     shiftcolrs(cscn, i, eshft);
364     i *= sizeof(float); /* read depth */
365     if (read(zfd, (char *)zscn, i) != i) {
366     sprintf(errmsg, "error reading depth file \"%s\"", zbf);
367     error(USER, errmsg);
368     }
369     for (i = scanlen(&prs); i--; ) { /* do each pixel */
370     pix2loc(vl, &prs, i, j);
371     aftd = viewray(ro, rd, &phd.vw, vl[0], vl[1]);
372     if (aftd < -FTINY)
373     continue; /* off view */
374     if (aftd > FTINY && zscn[i] > aftd)
375     continue; /* aft clipped */
376     if (emult > 0.) { /* whatta pain */
377     colr_color(ctmp, cscn[i]);
378     scalecolor(ctmp, emult);
379     setcolr(cscn[i], colval(ctmp,RED),
380     colval(ctmp,GRN), colval(ctmp,BLU));
381     }
382     addray(ro, rd, (double)zscn[i], cscn[i]);
383     }
384     }
385 gwlarson 3.11 /* write output and free beams */
386     hdflush(NULL);
387 gregl 3.1 /* clean up */
388 greg 3.15 free((void *)cscn);
389     free((void *)zscn);
390 gregl 3.1 fclose(pfp);
391     close(zfd);
392     }
393    
394    
395 greg 3.15 void
396 gregl 3.1 eputs(s) /* put error message to stderr */
397     register char *s;
398     {
399     static int midline = 0;
400    
401     if (!*s)
402     return;
403     if (!midline++) { /* prepend line with program name */
404     fputs(progname, stderr);
405     fputs(": ", stderr);
406     }
407     fputs(s, stderr);
408     if (s[strlen(s)-1] == '\n') {
409     fflush(stderr);
410     midline = 0;
411     }
412     }
413    
414    
415 greg 3.15 void
416 gregl 3.1 quit(code) /* exit the program gracefully */
417     int code;
418     {
419     hdsync(NULL, 1); /* write out any buffered data */
420     exit(code);
421     }