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root/radiance/ray/src/util/wrapBSDF.c
Revision: 2.4
Committed: Sat Feb 14 00:39:21 2015 UTC (7 years, 9 months ago) by greg
Content type: text/plain
Branch: MAIN
Changes since 2.3: +37 -19 lines
Log Message:
More fixes and indentation/alignment of XML tags

File Contents

# Content
1 #ifndef lint
2 static const char RCSid[] = "$Id: wrapBSDF.c,v 2.3 2015/02/13 20:49:59 greg Exp $";
3 #endif
4 /*
5 * Wrap BSDF data in valid WINDOW XML file
6 *
7 * G. Ward February 2015
8 */
9
10 #include <ctype.h>
11 #include "rtio.h"
12 #include "rtprocess.h"
13 #include "ezxml.h"
14 #include "bsdf.h"
15 #include "bsdf_m.h"
16 /* XML template file names */
17 const char def_template[] = "minimalBSDFt.xml";
18 const char win6_template[] = "WINDOW6BSDFt.xml";
19
20 const char stdin_name[] = "<stdin>";
21
22 /* input files (can be stdin_name) */
23 const char *xml_input = NULL;
24 /* unit for materials & geometry */
25 const char *attr_unit = "meter";
26 const char legal_units[] = "meter|foot|inch|centimeter|millimeter";
27 /* system materials & geometry */
28 const char *mgf_geometry = NULL;
29
30 /* angle basis */
31 enum { ABdefault=-1, ABklemsFull=0, ABklemsHalf, ABklemsQuarter,
32 ABtensorTree3, ABtensorTree4, ABend };
33
34 int angle_basis = ABdefault;
35
36 /* field IDs and nicknames */
37 struct s_fieldID {
38 char nickName[4];
39 short has_unit;
40 short win_need;
41 const char *fullName;
42 } XMLfieldID[] = {
43 {"m", 0, 1, "Manufacturer"},
44 {"n", 0, 1, "Name"},
45 {"c", 0, 0, "ThermalConductivity"},
46 {"ef", 0, 0, "EmissivityFront"},
47 {"eb", 0, 0, "EmissivityBack"},
48 {"tir", 0, 0, "TIR"},
49 {"eo", 0, 0, "EffectiveOpennessFraction"},
50 {"t", 1, 1, "Thickness"},
51 {"h", 1, 0, "Height"},
52 {"w", 1, 0, "Width"},
53 {"\0", 0, 0, NULL} /* terminator */
54 };
55 /* field assignments */
56 #define MAXASSIGN 12
57 const char *field_assignment[MAXASSIGN];
58 int nfield_assign = 0;
59 #define FASEP ';'
60
61 /* data file(s) & spectra */
62 enum { DTtransForward, DTtransBackward, DTreflForward, DTreflBackward };
63
64 enum { DSsolar=-1, DSnir=-2, DSxbar31=-3, DSvisible=-4, DSzbar31=-5 };
65
66 #define MAXFILES 20
67
68 struct s_dfile {
69 const char *fname; /* input data file name */
70 short type; /* BSDF data type */
71 short spectrum; /* BSDF sensor spectrum */
72 } data_file[MAXFILES];
73
74 int ndataf = 0; /* number of data files */
75
76 const char *spectr_file[MAXFILES]; /* custom spectral curve input */
77
78 const char top_level_name[] = "WindowElement";
79
80 static char basis_definition[][256] = {
81
82 "\t<DataDefinition>\n"
83 "\t\t<IncidentDataStructure>Columns</IncidentDataStructure>\n"
84 "\t\t<AngleBasis>\n"
85 "\t\t\t<AngleBasisName>LBNL/Klems Full</AngleBasisName>\n"
86 "\t\t\t</AngleBasis>\n"
87 "\t</DataDefinition>\n",
88
89 "\t<DataDefinition>\n"
90 "\t\t<IncidentDataStructure>Columns</IncidentDataStructure>\n"
91 "\t\t<AngleBasis>\n"
92 "\t\t\t<AngleBasisName>LBNL/Klems Half</AngleBasisName>\n"
93 "\t\t\t</AngleBasis>\n"
94 "\t</DataDefinition>\n",
95
96 "\t<DataDefinition>\n"
97 "\t\t<IncidentDataStructure>Columns</IncidentDataStructure>\n"
98 "\t\t<AngleBasis>\n"
99 "\t\t\t<AngleBasisName>LBNL/Klems Quarter</AngleBasisName>\n"
100 "\t\t\t</AngleBasis>\n"
101 "\t</DataDefinition>\n",
102
103 "\t<DataDefinition>\n"
104 "\t\t<IncidentDataStructure>TensorTree3</IncidentDataStructure>\n"
105 "\t</DataDefinition>\n",
106
107 "\t<DataDefinition>\n"
108 "\t\t<IncidentDataStructure>TensorTree4</IncidentDataStructure>\n"
109 "\t</DataDefinition>\n",
110 };
111
112 /* Copy data from file descriptor to stdout and close */
113 static int
114 copy_and_close(int fd)
115 {
116 int ok = 1;
117 char buf[8192];
118 int n;
119
120 if (fd < 0)
121 return 0;
122 while ((n = read(fd, buf, sizeof(buf))) > 0)
123 if (write(fileno(stdout), buf, n) != n) {
124 ok = 0;
125 break;
126 }
127 ok &= (n == 0);
128 close(fd);
129 return ok;
130 }
131
132 /* Allocate and assign string from file or stream */
133 static char *
134 input2str(const char *inpspec)
135 {
136 FILE *fp = NULL;
137 char *str;
138 int len, pos, n;
139
140 if (inpspec == NULL || !*inpspec)
141 return "";
142 if (inpspec == stdin_name) { /* read from stdin */
143 fp = stdin;
144 } else if (inpspec[0] == '!') { /* read from command */
145 fp = popen(inpspec+1, "r");
146 if (fp == NULL) {
147 fprintf(stderr, "Cannot start process '%s'\n",
148 inpspec);
149 return "";
150 }
151 } else { /* else load file */
152 int fd = open(inpspec, O_RDONLY);
153 if (fd < 0) {
154 fprintf(stderr, "%s: cannot open\n", inpspec);
155 return "";
156 }
157 len = lseek(fd, 0L, SEEK_END);
158 if (len > 0) {
159 lseek(fd, 0L, SEEK_SET);
160 str = (char *)malloc(len+1);
161 if (str == NULL) {
162 close(fd);
163 goto memerr;
164 }
165 if (read(fd, str, len) != len) {
166 fprintf(stderr, "%s: read error\n", inpspec);
167 free(str);
168 close(fd);
169 return "";
170 }
171 str[len] = '\0';
172 close(fd);
173 return str;
174 }
175 fp = fdopen(fd, "r"); /* not a regular file */
176 }
177 /* reading from stream */
178 str = (char *)malloc((len=8192)+1);
179 if (str == NULL)
180 goto memerr;
181 pos = 0;
182 while ((n = read(fileno(fp), str+pos, len-pos)) > 0)
183 if ((pos += n) >= len) { /* need more space? */
184 str = (char *)realloc(str, (len += len>>2) + 1);
185 if (str == NULL)
186 goto memerr;
187 }
188 if (n < 0) {
189 fprintf(stderr, "%s: read error\n", inpspec);
190 free(str);
191 str = "";
192 } else { /* tidy up result */
193 str[pos] = '\0';
194 str = (char *)realloc(str, (len=pos)+1);
195 if (str == NULL)
196 goto memerr;
197 }
198 if (inpspec[0] != '!')
199 fclose(fp);
200 else if (pclose(fp))
201 fprintf(stderr, "Error running command '%s'\n", inpspec);
202 return str;
203 memerr:
204 fprintf(stderr, "%s: error allocating memory\n", inpspec);
205 if (fp != NULL)
206 (inpspec[0] == '!') ? pclose(fp) : fclose(fp);
207 return "";
208 }
209
210 /* Make material assignments in field_assignment to XML fields */
211 static int
212 mat_assignments(const char *caller, const char *fn, ezxml_t wtl)
213 {
214 int i;
215
216 wtl = ezxml_child(wtl, "Material");
217 if (wtl == NULL) {
218 fprintf(stderr, "%s: missing <Material> tag\n", fn);
219 return 0;
220 }
221 for (i = 0; i < nfield_assign; i++) {
222 const char *fnext = field_assignment[i];
223 for ( ; ; ) {
224 ezxml_t fld;
225 char sbuf[512];
226 int j;
227
228 while (isspace(*fnext))
229 ++fnext;
230 if (!*fnext)
231 break;
232 for (j = 0; *fnext != '=' && !isspace(*fnext); ) {
233 if (!*fnext | (*fnext == FASEP) |
234 (j >= sizeof(sbuf)-1)) {
235 fprintf(stderr,
236 "%s: bad tag name in assignment '%s'\n",
237 caller, field_assignment[i]);
238 return 0;
239 }
240 sbuf[j++] = *fnext++;
241 }
242 sbuf[j] = '\0'; /* check known field */
243 for (j = 0; XMLfieldID[j].nickName[0]; j++)
244 if (!strcasecmp(sbuf, XMLfieldID[j].nickName) ||
245 !strcasecmp(sbuf, XMLfieldID[j].fullName)) {
246 strcpy(sbuf, XMLfieldID[j].fullName);
247 break;
248 }
249 /* check if tag exists */
250 fld = ezxml_child(wtl, sbuf);
251 if (fld == NULL) { /* otherwise, create one */
252 if (!XMLfieldID[j].nickName[0])
253 fprintf(stderr,
254 "%s: warning - adding tag <%s>\n",
255 fn, sbuf);
256 fld = ezxml_add_child_d(wtl, sbuf, strlen(wtl->txt));
257 }
258 if (XMLfieldID[j].has_unit)
259 ezxml_set_attr(fld, "unit", attr_unit);
260 XMLfieldID[j].win_need = 0;
261 while (isspace(*fnext))
262 ++fnext;
263 if (*fnext++ != '=') {
264 fprintf(stderr,
265 "%s: missing '=' in assignment '%s'\n",
266 caller, field_assignment[i]);
267 return 0;
268 }
269 for (j = 0; *fnext && *fnext != FASEP; ) {
270 if (j >= sizeof(sbuf)-1) {
271 fprintf(stderr,
272 "%s: field too long in '%s'\n",
273 caller, field_assignment[i]);
274 return 0;
275 }
276 sbuf[j++] = *fnext++;
277 }
278 sbuf[j] = '\0';
279 ezxml_set_txt_d(fld, sbuf);
280 fnext += (*fnext == FASEP);
281 }
282 }
283 /* check required WINDOW settings */
284 if (xml_input == win6_template)
285 for (i = 0; XMLfieldID[i].nickName[0]; i++)
286 if (XMLfieldID[i].win_need &&
287 !ezxml_txt(ezxml_child(wtl,XMLfieldID[i].fullName))[0]) {
288 fprintf(stderr,
289 "%s: missing required '%s' assignment for WINDOW <%s>\n",
290 caller, XMLfieldID[i].nickName,
291 XMLfieldID[i].fullName);
292 return 0;
293 }
294 return 1; /* no errors */
295 }
296
297 /* Complete angle basis specification */
298 static int
299 finish_angle_basis(ezxml_t ab)
300 {
301 const char *bn = ezxml_txt(ezxml_child(ab, "AngleBasisName"));
302 int i, n = nabases;
303 char buf[32];
304
305 if (!*bn) {
306 fputs("Internal error - missing <AngleBasisName>!\n", stderr);
307 return 0;
308 }
309 while (n-- > 0)
310 if (!strcasecmp(bn, abase_list[n].name))
311 break;
312 if (n < 0) {
313 fprintf(stderr, "Internal error - unknown angle basis '%s'", bn);
314 return 0;
315 }
316 for (i = 0; abase_list[n].lat[i].nphis; i++) {
317 ezxml_t tb, abb = ezxml_add_child(ab, "AngleBasisBlock",
318 strlen(ab->txt));
319 sprintf(buf, "%g", i ?
320 .5*(abase_list[n].lat[i].tmin + abase_list[n].lat[i+1].tmin) :
321 .0);
322 ezxml_add_txt(abb, "\n\t\t\t\t");
323 ezxml_set_txt_d(ezxml_add_child(abb,"Theta",strlen(abb->txt)), buf);
324 sprintf(buf, "%d", abase_list[n].lat[i].nphis);
325 ezxml_add_txt(abb, "\n\t\t\t\t");
326 ezxml_set_txt_d(ezxml_add_child(abb,"nPhis",strlen(abb->txt)), buf);
327 ezxml_add_txt(abb, "\n\t\t\t\t");
328 tb = ezxml_add_child(abb, "ThetaBounds", strlen(abb->txt));
329 ezxml_add_txt(tb, "\n\t\t\t\t\t");
330 sprintf(buf, "%g", abase_list[n].lat[i].tmin);
331 ezxml_set_txt_d(ezxml_add_child(tb,"LowerTheta",strlen(tb->txt)), buf);
332 ezxml_add_txt(tb, "\n\t\t\t\t\t");
333 sprintf(buf, "%g", abase_list[n].lat[i+1].tmin);
334 ezxml_set_txt_d(ezxml_add_child(tb,"UpperTheta",strlen(tb->txt)), buf);
335 ezxml_add_txt(tb, "\n\t\t\t\t");
336 ezxml_add_txt(abb, "\n\t\t\t");
337 ezxml_add_txt(ab, "\n\t\t\t");
338 }
339 return 1;
340 }
341
342 /* Determine our angle basis from current tags */
343 static int
344 determine_angle_basis(const char *fn, ezxml_t wtl)
345 {
346 const char *ids;
347 int i;
348
349 wtl = ezxml_child(wtl, "DataDefinition");
350 if (wtl == NULL)
351 return -1;
352 ids = ezxml_txt(ezxml_child(wtl, "IncidentDataStructure"));
353 if (!ids[0])
354 return -1;
355 for (i = 0; i < ABend; i++) {
356 ezxml_t parsed = ezxml_parse_str(basis_definition[i],
357 strlen(basis_definition[i]));
358 int match = 0;
359 if (!strcmp(ids, ezxml_txt(ezxml_child(parsed,
360 "IncidentDataStructure")))) {
361 const char *abn0 = ezxml_txt(
362 ezxml_child(ezxml_child(wtl,
363 "AngleBasis"), "AngleBasisName"));
364 const char *abn1 = ezxml_txt(
365 ezxml_child(ezxml_child(parsed,
366 "AngleBasis"), "AngleBasisName"));
367 match = !strcmp(abn0, abn1);
368 }
369 ezxml_free(parsed);
370 if (match)
371 return i;
372 }
373 return -1;
374 }
375
376 /* Write out BSDF data block with surrounding tags */
377 static int
378 writeBSDFblock(const char *caller, struct s_dfile *df)
379 {
380 char *cp;
381
382 puts("\t<WavelengthData>");
383 puts("\t\t<LayerNumber>System</LayerNumber>");
384 switch (df->spectrum) {
385 case DSvisible:
386 puts("\t\t<Wavelength unit=\"Integral\">Visible</Wavelength>");
387 puts("\t\tSourceSpectrum>CIE Illuminant D65 1nm.ssp</SourceSpectrum>");
388 puts("\t\t<DetectorSpectrum>ASTM E308 1931 Y.dsp</DetectorSpectrum>");
389 break;
390 case DSxbar31:
391 puts("\t\t<Wavelength unit=\"Integral\">CIE-X</Wavelength>");
392 puts("\t\tSourceSpectrum>CIE Illuminant D65 1nm.ssp</SourceSpectrum>");
393 puts("\t\t<DetectorSpectrum>ASTM E308 1931 X.dsp</DetectorSpectrum>");
394 break;
395 case DSzbar31:
396 puts("\t\t<Wavelength unit=\"Integral\">CIE-Z</Wavelength>");
397 puts("\t\tSourceSpectrum>CIE Illuminant D65 1nm.ssp</SourceSpectrum>");
398 puts("\t\t<DetectorSpectrum>ASTM E308 1931 Z.dsp</DetectorSpectrum>");
399 break;
400 case DSsolar:
401 puts("\t\t<Wavelength unit=\"Integral\">Solar</Wavelength>");
402 puts("\t\tSourceSpectrum>CIE Illuminant D65 1nm.ssp</SourceSpectrum>");
403 puts("\t\t<DetectorSpectrum>None</DetectorSpectrum>");
404 break;
405 case DSnir:
406 puts("\t\t<Wavelength unit=\"Integral\">NIR</Wavelength>");
407 puts("\t\tSourceSpectrum>PLACE_HOLDER</SourceSpectrum>");
408 puts("\t\t<DetectorSpectrum>PLACE_HOLDER</DetectorSpectrum>");
409 break;
410 default:
411 cp = strrchr(spectr_file[df->spectrum], '.');
412 if (cp != NULL)
413 *cp = '\0';
414 printf("\t\t<Wavelength unit=\"Integral\">%s</Wavelength>\n",
415 spectr_file[df->spectrum]);
416 if (cp != NULL)
417 *cp = '.';
418 puts("\t\tSourceSpectrum>CIE Illuminant D65 1nm.ssp</SourceSpectrum>");
419 printf("\t\t<DetectorSpectrum>%s</DetectorSpectrum>\n",
420 spectr_file[df->spectrum]);
421 break;
422 }
423 puts("\t\t<WavelengthDataBlock>");
424 fputs("\t\t\t<WavelengthDataDirection>", stdout);
425 switch (df->type) {
426 case DTtransForward:
427 fputs("Transmission Front", stdout);
428 break;
429 case DTtransBackward:
430 fputs("Transmission Back", stdout);
431 break;
432 case DTreflForward:
433 fputs("Reflection Front", stdout);
434 break;
435 case DTreflBackward:
436 fputs("Reflection Back", stdout);
437 break;
438 default:
439 fprintf(stderr, "%s: internal - bad BSDF type (%d)\n", caller, df->type);
440 return 0;
441 }
442 puts("</WavelengthDataDirection>");
443 switch (angle_basis) {
444 case ABklemsFull:
445 puts("\t\t\t<ColumnAngleBasis>LBNL/Klems Full</ColumnAngleBasis>");
446 break;
447 case ABklemsHalf:
448 puts("\t\t\t<ColumnAngleBasis>LBNL/Klems Half</ColumnAngleBasis>");
449 break;
450 case ABklemsQuarter:
451 puts("\t\t\t<ColumnAngleBasis>LBNL/Klems Quarter</ColumnAngleBasis>");
452 break;
453 case ABtensorTree3:
454 case ABtensorTree4:
455 puts("\t\t\t<AngleBasis>LBNL/Shirley-Chiu</AngleBasis>");
456 break;
457 default:
458 fprintf(stderr, "%s: bad angle basis (%d)\n", caller, angle_basis);
459 return 0;
460 }
461 puts("\t\t\t<ScatteringDataType>BTDF</ScatteringDataType>");
462 puts("\t\t\t<ScatteringData>");
463 fflush(stdout);
464 if (df->fname == stdin_name) {
465 copy_and_close(fileno(stdin));
466 } else if (df->fname[0] != '!') {
467 if (!copy_and_close(open(df->fname, O_RDONLY))) {
468 fprintf(stderr, "%s: error reading from '%s'\n",
469 caller, df->fname);
470 return 0;
471 }
472 } else if (system(df->fname+1)) {
473 fprintf(stderr, "%s: error running '%s'\n", caller, df->fname);
474 return 0;
475 }
476 puts("\t\t\t</ScatteringData>");
477 puts("\t\t</WavelengthDataBlock>");
478 puts("\t</WavelengthData>");
479 return 1;
480 }
481
482 /* Write out XML, interpolating BSDF data block(s) */
483 static int
484 writeBSDF(const char *caller, ezxml_t fl)
485 {
486 char *xml = ezxml_toxml(fl); /* store XML in string */
487 int ei, i;
488 /* locate trailer */
489 for (ei = strlen(xml)-strlen("</Layer></Optical></WindowElement>");
490 ei >= 0; ei--)
491 if (!strncmp(xml+ei, "</Layer>", 8))
492 break;
493 if (ei < 0) {
494 fprintf(stderr, "%s: internal - cannot find trailer\n",
495 caller);
496 free(xml);
497 return 0;
498 }
499 fflush(stdout); /* write previous XML info. */
500 if (write(fileno(stdout), xml, ei) != ei) {
501 free(xml);
502 return 0;
503 }
504 for (i = 0; i < ndataf; i++) /* interpolate new data */
505 if (!writeBSDFblock(caller, &data_file[i])) {
506 free(xml);
507 return 0;
508 }
509 fputs(xml+ei, stdout); /* write trailer */
510 free(xml); /* free string */
511 fputc('\n', stdout);
512 return (fflush(stdout) == 0);
513 }
514
515 /* Insert BSDF data into XML wrapper */
516 static int
517 wrapBSDF(const char *caller)
518 {
519 const char *xml_path = xml_input;
520 ezxml_t fl, wtl;
521 /* load previous XML/template */
522 if (xml_input == stdin_name) {
523 fl = ezxml_parse_fp(stdin);
524 } else if (xml_input[0] == '!') {
525 FILE *pfp = popen(xml_input+1, "r");
526 if (pfp == NULL) {
527 fprintf(stderr, "%s: cannot start process '%s'\n",
528 caller, xml_input);
529 return 0;
530 }
531 fl = ezxml_parse_fp(pfp);
532 if (pclose(pfp)) {
533 fprintf(stderr, "%s: error running '%s'\n",
534 caller, xml_input);
535 return 0;
536 }
537 } else {
538 xml_path = getpath((char *)xml_input, getrlibpath(), R_OK);
539 if (xml_path == NULL) {
540 fprintf(stderr, "%s: cannot find XML file named '%s'\n",
541 caller, xml_input==NULL ? "NULL" : xml_input);
542 return 0;
543 }
544 fl = ezxml_parse_file(xml_path);
545 }
546 if (fl == NULL) {
547 fprintf(stderr, "%s: cannot load XML '%s'\n", caller, xml_path);
548 return 0;
549 }
550 if (ezxml_error(fl)[0]) {
551 fprintf(stderr, "%s: error in XML '%s': %s\n", caller, xml_path,
552 ezxml_error(fl));
553 goto failure;
554 }
555 if (strcmp(ezxml_name(fl), top_level_name)) {
556 fprintf(stderr, "%s: top level in XML '%s' not '%s'\n",
557 caller, xml_path, top_level_name);
558 goto failure;
559 }
560 wtl = ezxml_child(fl, "FileType");
561 if (wtl != NULL && strcmp(ezxml_txt(wtl), "BSDF")) {
562 fprintf(stderr, "%s: wrong FileType in XML '%s' (must be 'BSDF')",
563 caller, xml_path);
564 goto failure;
565 }
566 wtl = ezxml_child(ezxml_child(fl, "Optical"), "Layer");
567 if (wtl == NULL) {
568 fprintf(stderr, "%s: no optical layers in XML '%s'",
569 caller, xml_path);
570 goto failure;
571 }
572 /* make material assignments */
573 if (!mat_assignments(caller, xml_path, wtl))
574 goto failure;
575 if (mgf_geometry != NULL) { /* add geometry if specified */
576 ezxml_t geom = ezxml_child(wtl, "Geometry");
577 if (geom == NULL)
578 geom = ezxml_add_child(wtl, "Geometry", strlen(wtl->txt));
579 ezxml_set_attr(geom, "format", "MGF");
580 geom = ezxml_child(geom, "MGFblock");
581 if (geom == NULL) {
582 geom = ezxml_child(wtl, "Geometry");
583 geom = ezxml_add_child(geom, "MGFblock", 0);
584 }
585 ezxml_set_attr(geom, "unit", attr_unit);
586 ezxml_set_txt(geom, input2str(mgf_geometry));
587 if (geom->txt[0])
588 ezxml_set_flag(geom, EZXML_TXTM);
589 }
590 /* check basis */
591 if (angle_basis != ABdefault) {
592 size_t offset = 0;
593 ezxml_t ab, dd = ezxml_child(wtl, "DataDefinition");
594 if (dd != NULL) {
595 offset = dd->off;
596 fprintf(stderr,
597 "%s: warning - replacing existing <DataDefinition> in '%s'\n",
598 caller, xml_path);
599 ezxml_remove(dd);
600 } else
601 offset = strlen(wtl->txt);
602 dd = ezxml_insert(ezxml_parse_str(basis_definition[angle_basis],
603 strlen(basis_definition[angle_basis])),
604 wtl, offset);
605 if ((ab = ezxml_child(dd, "AngleBasis")) != NULL &&
606 !finish_angle_basis(ab))
607 goto failure;
608 } else if ((angle_basis = determine_angle_basis(xml_path, wtl)) < 0) {
609 fprintf(stderr, "%s: need -a option to set angle basis\n",
610 caller);
611 goto failure;
612 }
613 /* write & add BSDF data blocks */
614 if (!writeBSDF(caller, fl))
615 goto failure;
616 ezxml_free(fl); /* all done */
617 return 1;
618 failure:
619 ezxml_free(fl);
620 return 0;
621 }
622
623 /* Report usage and exit */
624 static void
625 UsageExit(const char *pname)
626 {
627 fputs("Usage: ", stderr);
628 fputs(pname, stderr);
629 fputs(" [-W][-a {kf|kh|kq|t3|t4}][-u unit][-g geom][-f 'x=string;y=string']", stderr);
630 fputs(" [-s spectr][-tb inp][-tf inp][-rb inp][-rf inp]", stderr);
631 fputs(" [input.xml]\n", stderr);
632 exit(1);
633 }
634
635 /* Load XML file and use to wrap BSDF data (or modify fields) */
636 int
637 main(int argc, char *argv[])
638 {
639 int cur_spectrum = DSvisible;
640 int ncust_spec = 0;
641 int used_stdin = 0;
642 int units_set = 0;
643 int i;
644 /* get/check arguments */
645 for (i = 1; i < argc && argv[i][0] == '-'; i++) {
646 switch (argv[i][1]) {
647 case 'W': /* customize for WINDOW 6 output */
648 xml_input = win6_template;
649 continue;
650 case 'f': /* field assignment(s) */
651 if (++i >= argc)
652 UsageExit(argv[0]);
653 if (nfield_assign >= MAXASSIGN) {
654 fprintf(stderr, "%s: too many -f options",
655 argv[0]);
656 return 1;
657 }
658 field_assignment[nfield_assign++] = argv[i];
659 continue;
660 case 'u': /* unit */
661 if (++i >= argc)
662 UsageExit(argv[0]);
663 if (units_set++) {
664 fprintf(stderr, "%s: only one -u option allowed\n",
665 argv[0]);
666 return 1;
667 }
668 if (strstr(legal_units, argv[i]) == NULL) {
669 fprintf(stderr, "%s: -u unit must be one of (%s)\n",
670 argv[0], legal_units);
671 return 1;
672 }
673 attr_unit = argv[i];
674 continue;
675 case 'a': /* angle basis */
676 if (++i >= argc)
677 UsageExit(argv[0]);
678 if (angle_basis != ABdefault) {
679 fprintf(stderr, "%s: only one -a option allowed\n",
680 argv[0]);
681 return 1;
682 }
683 if (!strcasecmp(argv[i], "kf"))
684 angle_basis = ABklemsFull;
685 else if (!strcasecmp(argv[i], "kh"))
686 angle_basis = ABklemsHalf;
687 else if (!strcasecmp(argv[i], "kq"))
688 angle_basis = ABklemsQuarter;
689 else if (!strcasecmp(argv[i], "t3"))
690 angle_basis = ABtensorTree3;
691 else if (!strcasecmp(argv[i], "t4"))
692 angle_basis = ABtensorTree4;
693 else
694 UsageExit(argv[0]);
695 continue;
696 case 't': /* transmission */
697 if (i >= argc-1)
698 UsageExit(argv[0]);
699 if (ndataf >= MAXFILES) {
700 fprintf(stderr, "%s: too many data files\n",
701 argv[0]);
702 return 1;
703 }
704 if (!strcmp(argv[i], "-tf"))
705 data_file[ndataf].type = DTtransForward;
706 else if (!strcmp(argv[i], "-tb"))
707 data_file[ndataf].type = DTtransBackward;
708 else
709 UsageExit(argv[0]);
710 if (!strcmp(argv[++i], "-")) {
711 if (used_stdin++) UsageExit(argv[i]);
712 argv[i] = (char *)stdin_name;
713 }
714 data_file[ndataf].fname = argv[i];
715 data_file[ndataf].spectrum = cur_spectrum;
716 ndataf++;
717 continue;
718 case 'r': /* reflection */
719 if (i >= argc-1)
720 UsageExit(argv[0]);
721 if (ndataf >= MAXFILES) {
722 fprintf(stderr, "%s: too many data files\n",
723 argv[0]);
724 return 1;
725 }
726 if (!strcmp(argv[i], "-rf"))
727 data_file[ndataf].type = DTreflForward;
728 else if (!strcmp(argv[i], "-rb"))
729 data_file[ndataf].type = DTreflBackward;
730 else
731 UsageExit(argv[0]);
732 if (!strcmp(argv[++i], "-")) {
733 if (used_stdin++) UsageExit(argv[i]);
734 argv[i] = (char *)stdin_name;
735 }
736 data_file[ndataf].fname = argv[i];
737 data_file[ndataf++].spectrum = cur_spectrum;
738 continue;
739 case 's': /* spectrum name or input file */
740 if (++i >= argc)
741 UsageExit(argv[0]);
742 if (!strcasecmp(argv[i], "Solar"))
743 cur_spectrum = DSsolar;
744 else if (!strcasecmp(argv[i], "Visible") ||
745 !strcasecmp(argv[i], "CIE-Y"))
746 cur_spectrum = DSvisible;
747 else if (!strcasecmp(argv[i], "CIE-X"))
748 cur_spectrum = DSxbar31;
749 else if (!strcasecmp(argv[i], "CIE-Z"))
750 cur_spectrum = DSzbar31;
751 else if (!strcasecmp(argv[i], "NIR"))
752 cur_spectrum = DSnir;
753 else {
754 if (!strcmp(argv[i], "-")) {
755 fprintf(stderr,
756 "%s: cannot read spectra from stdin",
757 argv[0]);
758 return 1;
759 }
760 cur_spectrum = ncust_spec;
761 spectr_file[ncust_spec++] = argv[i];
762 }
763 continue;
764 case 'g': /* MGF geometry file */
765 if (i >= argc-1)
766 UsageExit(argv[0]);
767 if (mgf_geometry != NULL) {
768 fprintf(stderr, "%s: only one -g option allowed\n",
769 argv[0]);
770 return 1;
771 }
772 if (!strcmp(argv[++i], "-")) {
773 if (used_stdin++) UsageExit(argv[i]);
774 argv[i] = (char *)stdin_name;
775 }
776 mgf_geometry = argv[i];
777 continue;
778 case '\0': /* input XML from stdin */
779 break;
780 default:
781 UsageExit(argv[0]);
782 break;
783 }
784 break;
785 }
786 doneOptions: /* get XML input */
787 if (i >= argc) {
788 if (xml_input == NULL)
789 xml_input = def_template;
790 } else if ((i < argc-1) | (xml_input != NULL)) {
791 fprintf(stderr, "%s: only one XML input allowed\n", argv[0]);
792 UsageExit(argv[0]);
793 } else if (!strcmp(argv[i], "-")) {
794 if (used_stdin++) UsageExit(argv[0]);
795 xml_input = stdin_name;
796 } else {
797 xml_input = argv[i];
798 }
799 if ((xml_input == win6_template) & (angle_basis == ABdefault))
800 angle_basis = ABklemsFull;
801 /* wrap it! */
802 return !wrapBSDF(argv[0]);
803 }