| 1 |
#ifndef lint |
| 2 |
static const char RCSid[] = "$Id: wrapBSDF.c,v 2.14 2015/04/02 16:40:32 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 |
/* input files (can be stdin_name) */ |
| 22 |
const char *xml_input = NULL; |
| 23 |
/* unit for materials & geometry */ |
| 24 |
const char *attr_unit = "meter"; |
| 25 |
const char legal_units[] = "meter|foot|inch|centimeter|millimeter"; |
| 26 |
/* system materials & geometry */ |
| 27 |
const char *mgf_geometry = NULL; |
| 28 |
|
| 29 |
/* angle bases */ |
| 30 |
enum { ABdefault=-1, ABklemsFull=0, ABklemsHalf, ABklemsQuarter, |
| 31 |
ABtensorTree3, ABtensorTree4, ABend }; |
| 32 |
|
| 33 |
int angle_basis = ABdefault; |
| 34 |
|
| 35 |
int correct_solid_angle = 0; |
| 36 |
|
| 37 |
const char *klems_basis_name[] = { |
| 38 |
"LBNL/Klems Full", |
| 39 |
"LBNL/Klems Half", |
| 40 |
"LBNL/Klems Quarter", |
| 41 |
}; |
| 42 |
/* field IDs and nicknames */ |
| 43 |
struct s_fieldID { |
| 44 |
char nickName[4]; |
| 45 |
short has_unit; |
| 46 |
short win_need; |
| 47 |
const char *fullName; |
| 48 |
} XMLfieldID[] = { |
| 49 |
{"m", 0, 1, "Manufacturer"}, |
| 50 |
{"n", 0, 1, "Name"}, |
| 51 |
{"c", 0, 0, "ThermalConductivity"}, |
| 52 |
{"ef", 0, 0, "EmissivityFront"}, |
| 53 |
{"eb", 0, 0, "EmissivityBack"}, |
| 54 |
{"tir", 0, 0, "TIR"}, |
| 55 |
{"eo", 0, 0, "EffectiveOpennessFraction"}, |
| 56 |
{"t", 1, 1, "Thickness"}, |
| 57 |
{"h", 1, 0, "Height"}, |
| 58 |
{"w", 1, 0, "Width"}, |
| 59 |
{"\0", 0, 0, NULL} /* terminator */ |
| 60 |
}; |
| 61 |
/* field assignments */ |
| 62 |
#define MAXASSIGN 12 |
| 63 |
const char *field_assignment[MAXASSIGN]; |
| 64 |
int nfield_assign = 0; |
| 65 |
#define FASEP ';' |
| 66 |
/* data file(s) & spectra */ |
| 67 |
enum { DTtransForward, DTtransBackward, DTreflForward, DTreflBackward }; |
| 68 |
|
| 69 |
enum { DSsolar=-1, DSnir=-2, DSxbar31=-3, DSvisible=-4, DSzbar31=-5, |
| 70 |
DSuprime=-6, DSvprime=-7 }; |
| 71 |
|
| 72 |
#define MAXFILES 20 |
| 73 |
|
| 74 |
struct s_dfile { |
| 75 |
const char *fname; /* input data file name */ |
| 76 |
short type; /* BSDF data type */ |
| 77 |
short spectrum; /* BSDF sensor spectrum */ |
| 78 |
} data_file[MAXFILES]; |
| 79 |
|
| 80 |
int ndataf = 0; /* number of data files */ |
| 81 |
|
| 82 |
const char *spectr_file[MAXFILES]; /* custom spectral curve input */ |
| 83 |
|
| 84 |
const char top_level_name[] = "WindowElement"; |
| 85 |
|
| 86 |
static char basis_definition[][256] = { |
| 87 |
|
| 88 |
"\t<DataDefinition>\n" |
| 89 |
"\t\t<IncidentDataStructure>Columns</IncidentDataStructure>\n" |
| 90 |
"\t\t<AngleBasis>\n" |
| 91 |
"\t\t\t<AngleBasisName>LBNL/Klems Full</AngleBasisName>\n" |
| 92 |
"\t\t\t</AngleBasis>\n" |
| 93 |
"\t</DataDefinition>\n", |
| 94 |
|
| 95 |
"\t<DataDefinition>\n" |
| 96 |
"\t\t<IncidentDataStructure>Columns</IncidentDataStructure>\n" |
| 97 |
"\t\t<AngleBasis>\n" |
| 98 |
"\t\t\t<AngleBasisName>LBNL/Klems Half</AngleBasisName>\n" |
| 99 |
"\t\t\t</AngleBasis>\n" |
| 100 |
"\t</DataDefinition>\n", |
| 101 |
|
| 102 |
"\t<DataDefinition>\n" |
| 103 |
"\t\t<IncidentDataStructure>Columns</IncidentDataStructure>\n" |
| 104 |
"\t\t<AngleBasis>\n" |
| 105 |
"\t\t\t<AngleBasisName>LBNL/Klems Quarter</AngleBasisName>\n" |
| 106 |
"\t\t\t</AngleBasis>\n" |
| 107 |
"\t</DataDefinition>\n", |
| 108 |
|
| 109 |
"\t<DataDefinition>\n" |
| 110 |
"\t\t<IncidentDataStructure>TensorTree3</IncidentDataStructure>\n" |
| 111 |
"\t</DataDefinition>\n", |
| 112 |
|
| 113 |
"\t<DataDefinition>\n" |
| 114 |
"\t\t<IncidentDataStructure>TensorTree4</IncidentDataStructure>\n" |
| 115 |
"\t</DataDefinition>\n", |
| 116 |
}; |
| 117 |
|
| 118 |
/* Copy data from file descriptor to stdout and close */ |
| 119 |
static int |
| 120 |
copy_and_close(int fd) |
| 121 |
{ |
| 122 |
int ok = 1; |
| 123 |
char buf[8192]; |
| 124 |
int n; |
| 125 |
|
| 126 |
if (fd < 0) |
| 127 |
return 0; |
| 128 |
while ((n = read(fd, buf, sizeof(buf))) > 0) |
| 129 |
if (write(fileno(stdout), buf, n) != n) { |
| 130 |
ok = 0; |
| 131 |
break; |
| 132 |
} |
| 133 |
ok &= (n == 0); |
| 134 |
close(fd); |
| 135 |
return ok; |
| 136 |
} |
| 137 |
|
| 138 |
/* Allocate and assign string from file or stream */ |
| 139 |
static char * |
| 140 |
input2str(const char *inpspec) |
| 141 |
{ |
| 142 |
FILE *fp = NULL; |
| 143 |
char *str; |
| 144 |
int len, pos, n; |
| 145 |
|
| 146 |
if (inpspec == NULL || !*inpspec) |
| 147 |
return ""; |
| 148 |
if (inpspec == stdin_name) { /* read from stdin */ |
| 149 |
fp = stdin; |
| 150 |
} else if (inpspec[0] == '!') { /* read from command */ |
| 151 |
fp = popen(inpspec+1, "r"); |
| 152 |
if (fp == NULL) { |
| 153 |
fprintf(stderr, "Cannot start process '%s'\n", |
| 154 |
inpspec); |
| 155 |
return ""; |
| 156 |
} |
| 157 |
} else { /* else load file */ |
| 158 |
int fd = open(inpspec, O_RDONLY); |
| 159 |
if (fd < 0) { |
| 160 |
fprintf(stderr, "%s: cannot open\n", inpspec); |
| 161 |
return ""; |
| 162 |
} |
| 163 |
#ifndef _WIN32 /* XXX somehow broken on Windows */ |
| 164 |
len = lseek(fd, 0L, SEEK_END); |
| 165 |
if (len > 0) { |
| 166 |
lseek(fd, 0L, SEEK_SET); |
| 167 |
str = (char *)malloc(len+1); |
| 168 |
if (str == NULL) { |
| 169 |
close(fd); |
| 170 |
goto memerr; |
| 171 |
} |
| 172 |
if (read(fd, str, len) != len) { |
| 173 |
fprintf(stderr, "%s: read error\n", inpspec); |
| 174 |
free(str); |
| 175 |
close(fd); |
| 176 |
return ""; |
| 177 |
} |
| 178 |
str[len] = '\0'; |
| 179 |
close(fd); |
| 180 |
return str; |
| 181 |
} |
| 182 |
#endif |
| 183 |
fp = fdopen(fd, "r"); /* not a regular file */ |
| 184 |
} |
| 185 |
/* reading from stream */ |
| 186 |
str = (char *)malloc((len=8192)+1); |
| 187 |
if (str == NULL) |
| 188 |
goto memerr; |
| 189 |
pos = 0; |
| 190 |
while ((n = read(fileno(fp), str+pos, len-pos)) > 0) |
| 191 |
if ((pos += n) >= len) { /* need more space? */ |
| 192 |
str = (char *)realloc(str, (len += len>>2) + 1); |
| 193 |
if (str == NULL) |
| 194 |
goto memerr; |
| 195 |
} |
| 196 |
if (n < 0) { |
| 197 |
fprintf(stderr, "%s: read error\n", inpspec); |
| 198 |
free(str); |
| 199 |
str = ""; |
| 200 |
} else { /* tidy up result */ |
| 201 |
str[pos] = '\0'; |
| 202 |
str = (char *)realloc(str, (len=pos)+1); |
| 203 |
if (str == NULL) |
| 204 |
goto memerr; |
| 205 |
} |
| 206 |
if (inpspec[0] != '!') |
| 207 |
fclose(fp); |
| 208 |
else if (pclose(fp)) |
| 209 |
fprintf(stderr, "Error running command '%s'\n", inpspec); |
| 210 |
return str; |
| 211 |
memerr: |
| 212 |
fprintf(stderr, "%s: error allocating memory\n", inpspec); |
| 213 |
if (fp != NULL) |
| 214 |
(inpspec[0] == '!') ? pclose(fp) : fclose(fp); |
| 215 |
return ""; |
| 216 |
} |
| 217 |
|
| 218 |
/* Make material assignments in field_assignment to XML fields */ |
| 219 |
static int |
| 220 |
mat_assignments(const char *caller, const char *fn, ezxml_t wtl) |
| 221 |
{ |
| 222 |
int i; |
| 223 |
|
| 224 |
wtl = ezxml_child(wtl, "Material"); |
| 225 |
if (wtl == NULL) { |
| 226 |
fprintf(stderr, "%s: missing <Material> tag\n", fn); |
| 227 |
return 0; |
| 228 |
} |
| 229 |
for (i = 0; i < nfield_assign; i++) { |
| 230 |
const char *fnext = field_assignment[i]; |
| 231 |
for ( ; ; ) { |
| 232 |
int added = 0; |
| 233 |
ezxml_t fld; |
| 234 |
char sbuf[512]; |
| 235 |
int j; |
| 236 |
|
| 237 |
while (isspace(*fnext)) |
| 238 |
++fnext; |
| 239 |
if (!*fnext) |
| 240 |
break; |
| 241 |
for (j = 0; *fnext != '=' && !isspace(*fnext); ) { |
| 242 |
if (!*fnext | (*fnext == FASEP) | |
| 243 |
(j >= sizeof(sbuf)-1)) { |
| 244 |
fprintf(stderr, |
| 245 |
"%s: bad tag name in assignment '%s'\n", |
| 246 |
caller, field_assignment[i]); |
| 247 |
return 0; |
| 248 |
} |
| 249 |
sbuf[j++] = *fnext++; |
| 250 |
} |
| 251 |
sbuf[j] = '\0'; /* check known field */ |
| 252 |
for (j = 0; XMLfieldID[j].nickName[0]; j++) |
| 253 |
if (!strcasecmp(sbuf, XMLfieldID[j].nickName) || |
| 254 |
!strcasecmp(sbuf, XMLfieldID[j].fullName)) { |
| 255 |
strcpy(sbuf, XMLfieldID[j].fullName); |
| 256 |
break; |
| 257 |
} |
| 258 |
/* check if tag exists */ |
| 259 |
fld = ezxml_child(wtl, sbuf); |
| 260 |
if (fld == NULL) { /* otherwise, create one */ |
| 261 |
if (!XMLfieldID[j].nickName[0]) |
| 262 |
fprintf(stderr, |
| 263 |
"%s: warning - adding tag <%s>\n", |
| 264 |
fn, sbuf); |
| 265 |
ezxml_add_txt(wtl, "\t"); |
| 266 |
fld = ezxml_add_child_d(wtl, sbuf, strlen(wtl->txt)); |
| 267 |
++added; |
| 268 |
} |
| 269 |
if (XMLfieldID[j].has_unit) |
| 270 |
ezxml_set_attr(fld, "unit", attr_unit); |
| 271 |
XMLfieldID[j].win_need = 0; |
| 272 |
while (isspace(*fnext)) |
| 273 |
++fnext; |
| 274 |
if (*fnext++ != '=') { |
| 275 |
fprintf(stderr, |
| 276 |
"%s: missing '=' in assignment '%s'\n", |
| 277 |
caller, field_assignment[i]); |
| 278 |
return 0; |
| 279 |
} |
| 280 |
for (j = 0; *fnext && *fnext != FASEP; ) { |
| 281 |
if (j >= sizeof(sbuf)-1) { |
| 282 |
fprintf(stderr, |
| 283 |
"%s: field too long in '%s'\n", |
| 284 |
caller, field_assignment[i]); |
| 285 |
return 0; |
| 286 |
} |
| 287 |
sbuf[j++] = *fnext++; |
| 288 |
} |
| 289 |
sbuf[j] = '\0'; |
| 290 |
ezxml_set_txt_d(fld, sbuf); |
| 291 |
if (added) |
| 292 |
ezxml_add_txt(wtl, "\n\t"); |
| 293 |
fnext += (*fnext == FASEP); |
| 294 |
} |
| 295 |
} |
| 296 |
/* check required WINDOW settings */ |
| 297 |
if (xml_input == win6_template) |
| 298 |
for (i = 0; XMLfieldID[i].nickName[0]; i++) |
| 299 |
if (XMLfieldID[i].win_need && |
| 300 |
!ezxml_txt(ezxml_child(wtl,XMLfieldID[i].fullName))[0]) |
| 301 |
fprintf(stderr, |
| 302 |
"%s: warning - missing '%s' assignment for WINDOW <%s>\n", |
| 303 |
caller, XMLfieldID[i].nickName, |
| 304 |
XMLfieldID[i].fullName); |
| 305 |
return 1; |
| 306 |
} |
| 307 |
|
| 308 |
/* Complete angle basis specification */ |
| 309 |
static int |
| 310 |
finish_angle_basis(ezxml_t ab) |
| 311 |
{ |
| 312 |
const char *bn = ezxml_txt(ezxml_child(ab, "AngleBasisName")); |
| 313 |
int i, n = nabases; |
| 314 |
char buf[32]; |
| 315 |
|
| 316 |
if (!*bn) { |
| 317 |
fputs("Internal error - missing <AngleBasisName>!\n", stderr); |
| 318 |
return 0; |
| 319 |
} |
| 320 |
while (n-- > 0) |
| 321 |
if (!strcasecmp(bn, abase_list[n].name)) |
| 322 |
break; |
| 323 |
if (n < 0) { |
| 324 |
fprintf(stderr, "Internal error - unknown angle basis '%s'", bn); |
| 325 |
return 0; |
| 326 |
} |
| 327 |
for (i = 0; abase_list[n].lat[i].nphis; i++) { |
| 328 |
ezxml_t tb, abb = ezxml_add_child(ab, "AngleBasisBlock", |
| 329 |
strlen(ab->txt)); |
| 330 |
sprintf(buf, "%g", i ? |
| 331 |
.5*(abase_list[n].lat[i].tmin + abase_list[n].lat[i+1].tmin) : |
| 332 |
.0); |
| 333 |
ezxml_add_txt(abb, "\n\t\t\t\t"); |
| 334 |
ezxml_set_txt_d(ezxml_add_child(abb,"Theta",strlen(abb->txt)), buf); |
| 335 |
sprintf(buf, "%d", abase_list[n].lat[i].nphis); |
| 336 |
ezxml_add_txt(abb, "\n\t\t\t\t"); |
| 337 |
ezxml_set_txt_d(ezxml_add_child(abb,"nPhis",strlen(abb->txt)), buf); |
| 338 |
ezxml_add_txt(abb, "\n\t\t\t\t"); |
| 339 |
tb = ezxml_add_child(abb, "ThetaBounds", strlen(abb->txt)); |
| 340 |
ezxml_add_txt(tb, "\n\t\t\t\t\t"); |
| 341 |
sprintf(buf, "%g", abase_list[n].lat[i].tmin); |
| 342 |
ezxml_set_txt_d(ezxml_add_child(tb,"LowerTheta",strlen(tb->txt)), buf); |
| 343 |
ezxml_add_txt(tb, "\n\t\t\t\t\t"); |
| 344 |
sprintf(buf, "%g", abase_list[n].lat[i+1].tmin); |
| 345 |
ezxml_set_txt_d(ezxml_add_child(tb,"UpperTheta",strlen(tb->txt)), buf); |
| 346 |
ezxml_add_txt(tb, "\n\t\t\t\t"); |
| 347 |
ezxml_add_txt(abb, "\n\t\t\t"); |
| 348 |
ezxml_add_txt(ab, "\n\t\t\t"); |
| 349 |
} |
| 350 |
return 1; |
| 351 |
} |
| 352 |
|
| 353 |
/* Determine our angle basis from current tags */ |
| 354 |
static int |
| 355 |
determine_angle_basis(const char *fn, ezxml_t wtl) |
| 356 |
{ |
| 357 |
const char *ids; |
| 358 |
int i; |
| 359 |
|
| 360 |
wtl = ezxml_child(wtl, "DataDefinition"); |
| 361 |
if (wtl == NULL) |
| 362 |
return -1; |
| 363 |
ids = ezxml_txt(ezxml_child(wtl, "IncidentDataStructure")); |
| 364 |
if (!ids[0]) |
| 365 |
return -1; |
| 366 |
for (i = 0; i < ABend; i++) { |
| 367 |
ezxml_t parsed = ezxml_parse_str(basis_definition[i], |
| 368 |
strlen(basis_definition[i])); |
| 369 |
int match = 0; |
| 370 |
if (!strcmp(ids, ezxml_txt(ezxml_child(parsed, |
| 371 |
"IncidentDataStructure")))) { |
| 372 |
const char *abn0 = ezxml_txt( |
| 373 |
ezxml_child(ezxml_child(wtl, |
| 374 |
"AngleBasis"), "AngleBasisName")); |
| 375 |
const char *abn1 = ezxml_txt( |
| 376 |
ezxml_child(ezxml_child(parsed, |
| 377 |
"AngleBasis"), "AngleBasisName")); |
| 378 |
match = !strcmp(abn0, abn1); |
| 379 |
} |
| 380 |
ezxml_free(parsed); |
| 381 |
if (match) |
| 382 |
return i; |
| 383 |
} |
| 384 |
return -1; |
| 385 |
} |
| 386 |
|
| 387 |
/* Filter Klems angle basis, factoring out incident projected solid angle */ |
| 388 |
static int |
| 389 |
filter_klems_matrix(FILE *fp) |
| 390 |
{ |
| 391 |
#define MAX_COLUMNS 145 |
| 392 |
const char *bn = klems_basis_name[angle_basis]; |
| 393 |
float col_corr[MAX_COLUMNS]; |
| 394 |
int i, j, n = nabases; |
| 395 |
/* get angle basis */ |
| 396 |
while (n-- > 0) |
| 397 |
if (!strcasecmp(bn, abase_list[n].name)) |
| 398 |
break; |
| 399 |
if (n < 0) |
| 400 |
return 0; |
| 401 |
if (abase_list[n].nangles > MAX_COLUMNS) { |
| 402 |
fputs("Internal error - too many Klems columns!\n", stderr); |
| 403 |
return 0; |
| 404 |
} |
| 405 |
/* get correction factors */ |
| 406 |
for (j = abase_list[n].nangles; j--; ) |
| 407 |
col_corr[j] = 1.f / io_getohm(j, &abase_list[n]); |
| 408 |
/* read/correct/write matrix */ |
| 409 |
for (i = 0; i < abase_list[n].nangles; i++) { |
| 410 |
for (j = 0; j < abase_list[n].nangles; j++) { |
| 411 |
double d; |
| 412 |
if (fscanf(fp, "%lf", &d) != 1) |
| 413 |
return 0; |
| 414 |
if (d < -1e-3) { |
| 415 |
fputs("Negative BSDF data!\n", stderr); |
| 416 |
return 0; |
| 417 |
} |
| 418 |
printf(" %.3e", d*col_corr[j]*(d > 0)); |
| 419 |
} |
| 420 |
fputc('\n', stdout); |
| 421 |
} |
| 422 |
while ((i = getc(fp)) != EOF) |
| 423 |
if (!isspace(i)) { |
| 424 |
fputs("Unexpected data past EOF\n", stderr); |
| 425 |
return 0; |
| 426 |
} |
| 427 |
return 1; /* all is good */ |
| 428 |
#undef MAX_COLUMNS |
| 429 |
} |
| 430 |
|
| 431 |
/* Write out BSDF data block with surrounding tags */ |
| 432 |
static int |
| 433 |
writeBSDFblock(const char *caller, struct s_dfile *df) |
| 434 |
{ |
| 435 |
int correct_klems = correct_solid_angle; |
| 436 |
char *cp; |
| 437 |
|
| 438 |
puts("\t<WavelengthData>"); |
| 439 |
puts("\t\t<LayerNumber>System</LayerNumber>"); |
| 440 |
switch (df->spectrum) { |
| 441 |
case DSvisible: |
| 442 |
puts("\t\t<Wavelength unit=\"Integral\">Visible</Wavelength>"); |
| 443 |
puts("\t\t<SourceSpectrum>CIE Illuminant D65 1nm.ssp</SourceSpectrum>"); |
| 444 |
puts("\t\t<DetectorSpectrum>ASTM E308 1931 Y.dsp</DetectorSpectrum>"); |
| 445 |
break; |
| 446 |
case DSxbar31: |
| 447 |
puts("\t\t<Wavelength unit=\"Integral\">CIE-X</Wavelength>"); |
| 448 |
puts("\t\t<SourceSpectrum>CIE Illuminant D65 1nm.ssp</SourceSpectrum>"); |
| 449 |
puts("\t\t<DetectorSpectrum>ASTM E308 1931 X.dsp</DetectorSpectrum>"); |
| 450 |
break; |
| 451 |
case DSzbar31: |
| 452 |
puts("\t\t<Wavelength unit=\"Integral\">CIE-Z</Wavelength>"); |
| 453 |
puts("\t\t<SourceSpectrum>CIE Illuminant D65 1nm.ssp</SourceSpectrum>"); |
| 454 |
puts("\t\t<DetectorSpectrum>ASTM E308 1931 Z.dsp</DetectorSpectrum>"); |
| 455 |
break; |
| 456 |
case DSuprime: |
| 457 |
puts("\t\t<Wavelength unit=\"Integral\">CIE-u</Wavelength>"); |
| 458 |
puts("\t\t<SourceSpectrum>CIE Illuminant D65 1nm.ssp</SourceSpectrum>"); |
| 459 |
break; |
| 460 |
case DSvprime: |
| 461 |
puts("\t\t<Wavelength unit=\"Integral\">CIE-v</Wavelength>"); |
| 462 |
puts("\t\t<SourceSpectrum>CIE Illuminant D65 1nm.ssp</SourceSpectrum>"); |
| 463 |
break; |
| 464 |
case DSsolar: |
| 465 |
puts("\t\t<Wavelength unit=\"Integral\">Solar</Wavelength>"); |
| 466 |
puts("\t\t<SourceSpectrum>CIE Illuminant D65 1nm.ssp</SourceSpectrum>"); |
| 467 |
puts("\t\t<DetectorSpectrum>None</DetectorSpectrum>"); |
| 468 |
break; |
| 469 |
case DSnir: |
| 470 |
puts("\t\t<Wavelength unit=\"Integral\">NIR</Wavelength>"); |
| 471 |
puts("\t\t<SourceSpectrum>PLACE_HOLDER</SourceSpectrum>"); |
| 472 |
puts("\t\t<DetectorSpectrum>PLACE_HOLDER</DetectorSpectrum>"); |
| 473 |
break; |
| 474 |
default: |
| 475 |
cp = strrchr(spectr_file[df->spectrum], '.'); |
| 476 |
if (cp != NULL) |
| 477 |
*cp = '\0'; |
| 478 |
printf("\t\t<Wavelength unit=\"Integral\">%s</Wavelength>\n", |
| 479 |
spectr_file[df->spectrum]); |
| 480 |
if (cp != NULL) |
| 481 |
*cp = '.'; |
| 482 |
puts("\t\t<SourceSpectrum>CIE Illuminant D65 1nm.ssp</SourceSpectrum>"); |
| 483 |
printf("\t\t<DetectorSpectrum>%s</DetectorSpectrum>\n", |
| 484 |
spectr_file[df->spectrum]); |
| 485 |
break; |
| 486 |
} |
| 487 |
puts("\t\t<WavelengthDataBlock>"); |
| 488 |
fputs("\t\t\t<WavelengthDataDirection>", stdout); |
| 489 |
switch (df->type) { |
| 490 |
case DTtransForward: |
| 491 |
fputs("Transmission Front", stdout); |
| 492 |
break; |
| 493 |
case DTtransBackward: |
| 494 |
fputs("Transmission Back", stdout); |
| 495 |
break; |
| 496 |
case DTreflForward: |
| 497 |
fputs("Reflection Front", stdout); |
| 498 |
break; |
| 499 |
case DTreflBackward: |
| 500 |
fputs("Reflection Back", stdout); |
| 501 |
break; |
| 502 |
default: |
| 503 |
fprintf(stderr, "%s: internal - bad BSDF type (%d)\n", caller, df->type); |
| 504 |
return 0; |
| 505 |
} |
| 506 |
puts("</WavelengthDataDirection>"); |
| 507 |
switch (angle_basis) { |
| 508 |
case ABklemsFull: |
| 509 |
case ABklemsHalf: |
| 510 |
case ABklemsQuarter: |
| 511 |
fputs("\t\t\t<ColumnAngleBasis>", stdout); |
| 512 |
fputs(klems_basis_name[angle_basis], stdout); |
| 513 |
puts("</ColumnAngleBasis>"); |
| 514 |
fputs("\t\t\t<RowAngleBasis>", stdout); |
| 515 |
fputs(klems_basis_name[angle_basis], stdout); |
| 516 |
puts("</RowAngleBasis>"); |
| 517 |
break; |
| 518 |
case ABtensorTree3: |
| 519 |
case ABtensorTree4: |
| 520 |
puts("\t\t\t<AngleBasis>LBNL/Shirley-Chiu</AngleBasis>"); |
| 521 |
correct_klems = 0; |
| 522 |
break; |
| 523 |
default: |
| 524 |
fprintf(stderr, "%s: bad angle basis (%d)\n", caller, angle_basis); |
| 525 |
return 0; |
| 526 |
} |
| 527 |
puts("\t\t\t<ScatteringDataType>BTDF</ScatteringDataType>"); |
| 528 |
puts("\t\t\t<ScatteringData>"); |
| 529 |
fflush(stdout); |
| 530 |
if (correct_klems) { /* correct Klems matrix data */ |
| 531 |
FILE *fp = stdin; |
| 532 |
if (df->fname[0] == '!') |
| 533 |
fp = popen(df->fname+1, "r"); |
| 534 |
else if (df->fname != stdin_name) |
| 535 |
fp = fopen(df->fname, "r"); |
| 536 |
if (fp == NULL) { |
| 537 |
fprintf(stderr, "%s: cannot open '%s'\n", |
| 538 |
caller, df->fname); |
| 539 |
return 0; |
| 540 |
} |
| 541 |
if (!filter_klems_matrix(fp)) { |
| 542 |
fprintf(stderr, "%s: Klems data error from '%s'\n", |
| 543 |
caller, df->fname); |
| 544 |
return 0; |
| 545 |
} |
| 546 |
if (df->fname[0] != '!') { |
| 547 |
fclose(fp); |
| 548 |
} else if (pclose(fp)) { |
| 549 |
fprintf(stderr, "%s: error running '%s'\n", |
| 550 |
caller, df->fname); |
| 551 |
return 0; |
| 552 |
} |
| 553 |
} else if (df->fname == stdin_name) { |
| 554 |
copy_and_close(fileno(stdin)); |
| 555 |
} else if (df->fname[0] != '!') { |
| 556 |
if (!copy_and_close(open(df->fname, O_RDONLY))) { |
| 557 |
fprintf(stderr, "%s: error reading from '%s'\n", |
| 558 |
caller, df->fname); |
| 559 |
return 0; |
| 560 |
} |
| 561 |
} else if (system(df->fname+1)) { |
| 562 |
fprintf(stderr, "%s: error running '%s'\n", caller, df->fname); |
| 563 |
return 0; |
| 564 |
} |
| 565 |
puts("\t\t\t</ScatteringData>"); |
| 566 |
puts("\t\t</WavelengthDataBlock>"); |
| 567 |
puts("\t</WavelengthData>"); |
| 568 |
return 1; |
| 569 |
} |
| 570 |
|
| 571 |
/* Write out XML, interpolating BSDF data block(s) */ |
| 572 |
static int |
| 573 |
writeBSDF(const char *caller, ezxml_t fl) |
| 574 |
{ |
| 575 |
char *xml = ezxml_toxml(fl); /* store XML in string */ |
| 576 |
int ei, i; |
| 577 |
/* locate trailer */ |
| 578 |
for (ei = strlen(xml)-strlen("</Layer></Optical></WindowElement>"); |
| 579 |
ei >= 0; ei--) |
| 580 |
if (!strncmp(xml+ei, "</Layer>", 8)) |
| 581 |
break; |
| 582 |
if (ei < 0) { |
| 583 |
fprintf(stderr, "%s: internal - cannot find trailer\n", |
| 584 |
caller); |
| 585 |
free(xml); |
| 586 |
return 0; |
| 587 |
} |
| 588 |
puts("<?xml version=\"1.0\" encoding=\"UTF-8\"?>"); |
| 589 |
fflush(stdout); /* write previous XML info. */ |
| 590 |
if (write(fileno(stdout), xml, ei) != ei) { |
| 591 |
free(xml); |
| 592 |
return 0; |
| 593 |
} |
| 594 |
for (i = 0; i < ndataf; i++) /* interpolate new data */ |
| 595 |
if (!writeBSDFblock(caller, &data_file[i])) { |
| 596 |
free(xml); |
| 597 |
return 0; |
| 598 |
} |
| 599 |
fputs(xml+ei, stdout); /* write trailer */ |
| 600 |
free(xml); /* free string */ |
| 601 |
fputc('\n', stdout); |
| 602 |
return (fflush(stdout) == 0); |
| 603 |
} |
| 604 |
|
| 605 |
/* Insert BSDF data into XML wrapper */ |
| 606 |
static int |
| 607 |
wrapBSDF(const char *caller) |
| 608 |
{ |
| 609 |
const char *xml_path = xml_input; |
| 610 |
ezxml_t fl, wtl; |
| 611 |
/* load previous XML/template */ |
| 612 |
if (xml_input == stdin_name) { |
| 613 |
fl = ezxml_parse_fp(stdin); |
| 614 |
} else if (xml_input[0] == '!') { |
| 615 |
FILE *pfp = popen(xml_input+1, "r"); |
| 616 |
if (pfp == NULL) { |
| 617 |
fprintf(stderr, "%s: cannot start process '%s'\n", |
| 618 |
caller, xml_input); |
| 619 |
return 0; |
| 620 |
} |
| 621 |
fl = ezxml_parse_fp(pfp); |
| 622 |
if (pclose(pfp)) { |
| 623 |
fprintf(stderr, "%s: error running '%s'\n", |
| 624 |
caller, xml_input); |
| 625 |
return 0; |
| 626 |
} |
| 627 |
} else { |
| 628 |
xml_path = getpath((char *)xml_input, getrlibpath(), R_OK); |
| 629 |
if (xml_path == NULL) { |
| 630 |
fprintf(stderr, "%s: cannot find XML file named '%s'\n", |
| 631 |
caller, xml_input==NULL ? "NULL" : xml_input); |
| 632 |
return 0; |
| 633 |
} |
| 634 |
fl = ezxml_parse_file(xml_path); |
| 635 |
} |
| 636 |
if (fl == NULL) { |
| 637 |
fprintf(stderr, "%s: cannot load XML '%s'\n", caller, xml_path); |
| 638 |
return 0; |
| 639 |
} |
| 640 |
if (ezxml_error(fl)[0]) { |
| 641 |
fprintf(stderr, "%s: error in XML '%s': %s\n", caller, xml_path, |
| 642 |
ezxml_error(fl)); |
| 643 |
goto failure; |
| 644 |
} |
| 645 |
if (strcmp(ezxml_name(fl), top_level_name)) { |
| 646 |
fprintf(stderr, "%s: top level in XML '%s' not '%s'\n", |
| 647 |
caller, xml_path, top_level_name); |
| 648 |
goto failure; |
| 649 |
} |
| 650 |
wtl = ezxml_child(fl, "FileType"); |
| 651 |
if (wtl != NULL && strcmp(ezxml_txt(wtl), "BSDF")) { |
| 652 |
fprintf(stderr, "%s: wrong FileType in XML '%s' (must be 'BSDF')", |
| 653 |
caller, xml_path); |
| 654 |
goto failure; |
| 655 |
} |
| 656 |
wtl = ezxml_child(ezxml_child(fl, "Optical"), "Layer"); |
| 657 |
if (wtl == NULL) { |
| 658 |
fprintf(stderr, "%s: no optical layers in XML '%s'", |
| 659 |
caller, xml_path); |
| 660 |
goto failure; |
| 661 |
} |
| 662 |
/* make material assignments */ |
| 663 |
if (!mat_assignments(caller, xml_path, wtl)) |
| 664 |
goto failure; |
| 665 |
if (mgf_geometry != NULL) { /* add geometry if specified */ |
| 666 |
ezxml_t geom = ezxml_child(wtl, "Geometry"); |
| 667 |
if (geom == NULL) |
| 668 |
geom = ezxml_add_child(wtl, "Geometry", strlen(wtl->txt)); |
| 669 |
ezxml_set_attr(geom, "format", "MGF"); |
| 670 |
geom = ezxml_child(geom, "MGFblock"); |
| 671 |
if (geom == NULL) { |
| 672 |
geom = ezxml_child(wtl, "Geometry"); |
| 673 |
geom = ezxml_add_child(geom, "MGFblock", 0); |
| 674 |
} |
| 675 |
ezxml_set_attr(geom, "unit", attr_unit); |
| 676 |
ezxml_set_txt(geom, input2str(mgf_geometry)); |
| 677 |
if (geom->txt[0]) |
| 678 |
ezxml_set_flag(geom, EZXML_TXTM); |
| 679 |
} |
| 680 |
/* check basis */ |
| 681 |
if (angle_basis != ABdefault) { |
| 682 |
size_t offset = 0; |
| 683 |
ezxml_t ab, dd = ezxml_child(wtl, "DataDefinition"); |
| 684 |
if (dd != NULL) { |
| 685 |
offset = dd->off; |
| 686 |
if (dd->child != NULL) |
| 687 |
fprintf(stderr, |
| 688 |
"%s: warning - replacing existing <DataDefinition> in '%s'\n", |
| 689 |
caller, xml_path); |
| 690 |
ezxml_remove(dd); |
| 691 |
} else |
| 692 |
offset = strlen(wtl->txt); |
| 693 |
dd = ezxml_insert(ezxml_parse_str(basis_definition[angle_basis], |
| 694 |
strlen(basis_definition[angle_basis])), |
| 695 |
wtl, offset); |
| 696 |
if ((ab = ezxml_child(dd, "AngleBasis")) != NULL && |
| 697 |
!finish_angle_basis(ab)) |
| 698 |
goto failure; |
| 699 |
} else if ((angle_basis = determine_angle_basis(xml_path, wtl)) < 0) { |
| 700 |
fprintf(stderr, "%s: need -a option to set angle basis\n", |
| 701 |
caller); |
| 702 |
goto failure; |
| 703 |
} |
| 704 |
/* write & add BSDF data blocks */ |
| 705 |
if (!writeBSDF(caller, fl)) |
| 706 |
goto failure; |
| 707 |
ezxml_free(fl); /* all done */ |
| 708 |
return 1; |
| 709 |
failure: |
| 710 |
ezxml_free(fl); |
| 711 |
return 0; |
| 712 |
} |
| 713 |
|
| 714 |
/* Report usage and exit */ |
| 715 |
static void |
| 716 |
UsageExit(const char *pname) |
| 717 |
{ |
| 718 |
fputs("Usage: ", stderr); |
| 719 |
fputs(pname, stderr); |
| 720 |
fputs(" [-W][-c][-a {kf|kh|kq|t3|t4}][-u unit][-g geom][-f 'x=string;y=string']", stderr); |
| 721 |
fputs(" [-s spectr][-tb inp][-tf inp][-rb inp][-rf inp]", stderr); |
| 722 |
fputs(" [input.xml]\n", stderr); |
| 723 |
exit(1); |
| 724 |
} |
| 725 |
|
| 726 |
/* Load XML file and use to wrap BSDF data (or modify fields) */ |
| 727 |
int |
| 728 |
main(int argc, char *argv[]) |
| 729 |
{ |
| 730 |
int cur_spectrum = DSvisible; |
| 731 |
int ncust_spec = 0; |
| 732 |
int used_stdin = 0; |
| 733 |
int units_set = 0; |
| 734 |
int i; |
| 735 |
/* get/check arguments */ |
| 736 |
for (i = 1; i < argc && argv[i][0] == '-'; i++) { |
| 737 |
switch (argv[i][1]) { |
| 738 |
case 'W': /* customize for WINDOW 6 output */ |
| 739 |
xml_input = win6_template; |
| 740 |
continue; |
| 741 |
case 'f': /* field assignment(s) */ |
| 742 |
if (++i >= argc) |
| 743 |
UsageExit(argv[0]); |
| 744 |
if (nfield_assign >= MAXASSIGN) { |
| 745 |
fprintf(stderr, "%s: too many -f options", |
| 746 |
argv[0]); |
| 747 |
return 1; |
| 748 |
} |
| 749 |
field_assignment[nfield_assign++] = argv[i]; |
| 750 |
continue; |
| 751 |
case 'u': /* unit */ |
| 752 |
if (++i >= argc) |
| 753 |
UsageExit(argv[0]); |
| 754 |
if (units_set++) { |
| 755 |
fprintf(stderr, "%s: only one -u option allowed\n", |
| 756 |
argv[0]); |
| 757 |
return 1; |
| 758 |
} |
| 759 |
if (strstr(legal_units, argv[i]) == NULL) { |
| 760 |
fprintf(stderr, "%s: -u unit must be one of (%s)\n", |
| 761 |
argv[0], legal_units); |
| 762 |
return 1; |
| 763 |
} |
| 764 |
attr_unit = argv[i]; |
| 765 |
continue; |
| 766 |
case 'a': /* angle basis */ |
| 767 |
if (++i >= argc) |
| 768 |
UsageExit(argv[0]); |
| 769 |
if (angle_basis != ABdefault) { |
| 770 |
fprintf(stderr, "%s: only one -a option allowed\n", |
| 771 |
argv[0]); |
| 772 |
return 1; |
| 773 |
} |
| 774 |
if (!strcasecmp(argv[i], "kf")) |
| 775 |
angle_basis = ABklemsFull; |
| 776 |
else if (!strcasecmp(argv[i], "kh")) |
| 777 |
angle_basis = ABklemsHalf; |
| 778 |
else if (!strcasecmp(argv[i], "kq")) |
| 779 |
angle_basis = ABklemsQuarter; |
| 780 |
else if (!strcasecmp(argv[i], "t3")) |
| 781 |
angle_basis = ABtensorTree3; |
| 782 |
else if (!strcasecmp(argv[i], "t4")) |
| 783 |
angle_basis = ABtensorTree4; |
| 784 |
else |
| 785 |
UsageExit(argv[0]); |
| 786 |
continue; |
| 787 |
case 'c': /* correct solid angle */ |
| 788 |
correct_solid_angle = 1; |
| 789 |
continue; |
| 790 |
case 't': /* transmission */ |
| 791 |
if (i >= argc-1) |
| 792 |
UsageExit(argv[0]); |
| 793 |
if (ndataf >= MAXFILES) { |
| 794 |
fprintf(stderr, "%s: too many data files\n", |
| 795 |
argv[0]); |
| 796 |
return 1; |
| 797 |
} |
| 798 |
if (!strcmp(argv[i], "-tf")) |
| 799 |
data_file[ndataf].type = DTtransForward; |
| 800 |
else if (!strcmp(argv[i], "-tb")) |
| 801 |
data_file[ndataf].type = DTtransBackward; |
| 802 |
else |
| 803 |
UsageExit(argv[0]); |
| 804 |
if (!strcmp(argv[++i], "-")) { |
| 805 |
if (used_stdin++) UsageExit(argv[i]); |
| 806 |
argv[i] = (char *)stdin_name; |
| 807 |
} |
| 808 |
data_file[ndataf].fname = argv[i]; |
| 809 |
data_file[ndataf].spectrum = cur_spectrum; |
| 810 |
ndataf++; |
| 811 |
continue; |
| 812 |
case 'r': /* reflection */ |
| 813 |
if (i >= argc-1) |
| 814 |
UsageExit(argv[0]); |
| 815 |
if (ndataf >= MAXFILES) { |
| 816 |
fprintf(stderr, "%s: too many data files\n", |
| 817 |
argv[0]); |
| 818 |
return 1; |
| 819 |
} |
| 820 |
if (!strcmp(argv[i], "-rf")) |
| 821 |
data_file[ndataf].type = DTreflForward; |
| 822 |
else if (!strcmp(argv[i], "-rb")) |
| 823 |
data_file[ndataf].type = DTreflBackward; |
| 824 |
else |
| 825 |
UsageExit(argv[0]); |
| 826 |
if (!strcmp(argv[++i], "-")) { |
| 827 |
if (used_stdin++) UsageExit(argv[i]); |
| 828 |
argv[i] = (char *)stdin_name; |
| 829 |
} |
| 830 |
data_file[ndataf].fname = argv[i]; |
| 831 |
data_file[ndataf].spectrum = cur_spectrum; |
| 832 |
ndataf++; |
| 833 |
continue; |
| 834 |
case 's': /* spectrum name or input file */ |
| 835 |
if (++i >= argc) |
| 836 |
UsageExit(argv[0]); |
| 837 |
if (!strcasecmp(argv[i], "Solar")) |
| 838 |
cur_spectrum = DSsolar; |
| 839 |
else if (!strcasecmp(argv[i], "Visible") || |
| 840 |
!strcasecmp(argv[i], "CIE-Y")) |
| 841 |
cur_spectrum = DSvisible; |
| 842 |
else if (!strcasecmp(argv[i], "CIE-X")) |
| 843 |
cur_spectrum = DSxbar31; |
| 844 |
else if (!strcasecmp(argv[i], "CIE-Z")) |
| 845 |
cur_spectrum = DSzbar31; |
| 846 |
else if (!strcasecmp(argv[i], "CIE-u")) |
| 847 |
cur_spectrum = DSuprime; |
| 848 |
else if (!strcasecmp(argv[i], "CIE-v")) |
| 849 |
cur_spectrum = DSvprime; |
| 850 |
else if (!strcasecmp(argv[i], "NIR")) |
| 851 |
cur_spectrum = DSnir; |
| 852 |
else { |
| 853 |
if (!strcmp(argv[i], "-")) { |
| 854 |
fprintf(stderr, |
| 855 |
"%s: cannot read spectra from stdin", |
| 856 |
argv[0]); |
| 857 |
return 1; |
| 858 |
} |
| 859 |
cur_spectrum = ncust_spec; |
| 860 |
spectr_file[ncust_spec++] = argv[i]; |
| 861 |
} |
| 862 |
continue; |
| 863 |
case 'g': /* MGF geometry file */ |
| 864 |
if (i >= argc-1) |
| 865 |
UsageExit(argv[0]); |
| 866 |
if (mgf_geometry != NULL) { |
| 867 |
fprintf(stderr, "%s: only one -g option allowed\n", |
| 868 |
argv[0]); |
| 869 |
return 1; |
| 870 |
} |
| 871 |
if (!strcmp(argv[++i], "-")) { |
| 872 |
if (used_stdin++) UsageExit(argv[i]); |
| 873 |
argv[i] = (char *)stdin_name; |
| 874 |
} |
| 875 |
mgf_geometry = argv[i]; |
| 876 |
continue; |
| 877 |
case '\0': /* input XML from stdin */ |
| 878 |
break; |
| 879 |
default: |
| 880 |
UsageExit(argv[0]); |
| 881 |
break; |
| 882 |
} |
| 883 |
break; |
| 884 |
} |
| 885 |
doneOptions: /* get XML input */ |
| 886 |
if (i >= argc) { |
| 887 |
if (xml_input == NULL) |
| 888 |
xml_input = def_template; |
| 889 |
} else if ((i < argc-1) | (xml_input != NULL)) { |
| 890 |
fprintf(stderr, "%s: only one XML input allowed\n", argv[0]); |
| 891 |
UsageExit(argv[0]); |
| 892 |
} else if (!strcmp(argv[i], "-")) { |
| 893 |
if (used_stdin++) UsageExit(argv[0]); |
| 894 |
xml_input = stdin_name; |
| 895 |
} else { |
| 896 |
xml_input = argv[i]; |
| 897 |
} |
| 898 |
/* wrap it! */ |
| 899 |
return !wrapBSDF(argv[0]); |
| 900 |
} |
