--- ray/src/util/wrapBSDF.c	2015/02/20 17:05:40	2.10
+++ ray/src/util/wrapBSDF.c	2016/02/02 18:02:32	2.17
@@ -1,5 +1,5 @@
 #ifndef lint
-static const char RCSid[] = "$Id: wrapBSDF.c,v 2.10 2015/02/20 17:05:40 greg Exp $";
+static const char RCSid[] = "$Id: wrapBSDF.c,v 2.17 2016/02/02 18:02:32 greg Exp $";
 #endif
 /*
  * Wrap BSDF data in valid WINDOW XML file
@@ -9,7 +9,7 @@ static const char RCSid[] = "$Id: wrapBSDF.c,v 2.10 20
 
 #include <ctype.h>
 #include "rtio.h"
-#include "rtprocess.h"
+#include "paths.h"
 #include "ezxml.h"
 #include "bsdf.h"
 #include "bsdf_m.h"
@@ -25,7 +25,10 @@ const char	*attr_unit = "meter";
 const char	legal_units[] = "meter|foot|inch|centimeter|millimeter";
 					/* system materials & geometry */
 const char	*mgf_geometry = NULL;
-
+					/* comment list */
+#define MAXCOMM		30
+const char	*commlist[MAXCOMM];
+int		ncomm = 0;
 					/* angle bases */
 enum { ABdefault=-1, ABklemsFull=0, ABklemsHalf, ABklemsQuarter,
 		ABtensorTree3, ABtensorTree4, ABend };
@@ -66,7 +69,8 @@ int		nfield_assign = 0;
 					/* data file(s) & spectra */
 enum { DTtransForward, DTtransBackward, DTreflForward, DTreflBackward };
 
-enum { DSsolar=-1, DSnir=-2, DSxbar31=-3, DSvisible=-4, DSzbar31=-5 };
+enum { DSsolar=-1, DSnir=-2, DSxbar31=-3, DSvisible=-4, DSzbar31=-5,
+	DSuprime=-6, DSvprime=-7 };
 
 #define MAXFILES	20
 
@@ -159,6 +163,7 @@ input2str(const char *inpspec)
 			fprintf(stderr, "%s: cannot open\n", inpspec);
 			return "";
 		}
+#ifndef _WIN32				/* XXX somehow broken on Windows */
 		len = lseek(fd, 0L, SEEK_END);
 		if (len > 0) {
 			lseek(fd, 0L, SEEK_SET);
@@ -177,6 +182,7 @@ input2str(const char *inpspec)
 			close(fd);
 			return str;
 		}
+#endif
 		fp = fdopen(fd, "r");		/* not a regular file */
 	}
 						/* reading from stream */
@@ -442,22 +448,30 @@ writeBSDFblock(const char *caller, struct s_dfile *df)
 		break;
 	case DSxbar31:
 		puts("\t\t<Wavelength unit=\"Integral\">CIE-X</Wavelength>");
-		puts("\t\tSourceSpectrum>CIE Illuminant D65 1nm.ssp</SourceSpectrum>");
+		puts("\t\t<SourceSpectrum>CIE Illuminant D65 1nm.ssp</SourceSpectrum>");
 		puts("\t\t<DetectorSpectrum>ASTM E308 1931 X.dsp</DetectorSpectrum>");
 		break;
 	case DSzbar31:
 		puts("\t\t<Wavelength unit=\"Integral\">CIE-Z</Wavelength>");
-		puts("\t\tSourceSpectrum>CIE Illuminant D65 1nm.ssp</SourceSpectrum>");
+		puts("\t\t<SourceSpectrum>CIE Illuminant D65 1nm.ssp</SourceSpectrum>");
 		puts("\t\t<DetectorSpectrum>ASTM E308 1931 Z.dsp</DetectorSpectrum>");
 		break;
+	case DSuprime:
+		puts("\t\t<Wavelength unit=\"Integral\">CIE-u</Wavelength>");
+		puts("\t\t<SourceSpectrum>CIE Illuminant D65 1nm.ssp</SourceSpectrum>");
+		break;
+	case DSvprime:
+		puts("\t\t<Wavelength unit=\"Integral\">CIE-v</Wavelength>");
+		puts("\t\t<SourceSpectrum>CIE Illuminant D65 1nm.ssp</SourceSpectrum>");
+		break;
 	case DSsolar:
 		puts("\t\t<Wavelength unit=\"Integral\">Solar</Wavelength>");
-		puts("\t\tSourceSpectrum>CIE Illuminant D65 1nm.ssp</SourceSpectrum>");
+		puts("\t\t<SourceSpectrum>CIE Illuminant D65 1nm.ssp</SourceSpectrum>");
 		puts("\t\t<DetectorSpectrum>None</DetectorSpectrum>");
 		break;
 	case DSnir:
 		puts("\t\t<Wavelength unit=\"Integral\">NIR</Wavelength>");
-		puts("\t\tSourceSpectrum>PLACE_HOLDER</SourceSpectrum>");
+		puts("\t\t<SourceSpectrum>PLACE_HOLDER</SourceSpectrum>");
 		puts("\t\t<DetectorSpectrum>PLACE_HOLDER</DetectorSpectrum>");
 		break;
 	default:
@@ -468,7 +482,7 @@ writeBSDFblock(const char *caller, struct s_dfile *df)
 				spectr_file[df->spectrum]);
 		if (cp != NULL)
 			*cp = '.';
-		puts("\t\tSourceSpectrum>CIE Illuminant D65 1nm.ssp</SourceSpectrum>");
+		puts("\t\t<SourceSpectrum>CIE Illuminant D65 1nm.ssp</SourceSpectrum>");
 		printf("\t\t<DetectorSpectrum>%s</DetectorSpectrum>\n",
 				spectr_file[df->spectrum]);
 		break;
@@ -574,6 +588,9 @@ writeBSDF(const char *caller, ezxml_t fl)
 		free(xml);
 		return 0;
 	}
+	puts("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
+	for (i = 0; i < ncomm; i++)
+		printf("<!-- %s -->\n", commlist[i]);
 	fflush(stdout);				/* write previous XML info. */
 	if (write(fileno(stdout), xml, ei) != ei) {
 		free(xml);
@@ -705,8 +722,8 @@ UsageExit(const char *pname)
 {
 	fputs("Usage: ", stderr);
 	fputs(pname, stderr);
-	fputs(" [-W][-a {kf|kh|kq|t3|t4}][-u unit][-g geom][-f 'x=string;y=string']", stderr);
-	fputs(" [-s spectr][-tb inp][-tf inp][-rb inp][-rf inp]", stderr);
+	fputs(" [-W][-c][-a {kf|kh|kq|t3|t4}][-u unit][-g geom][-f 'x=string;y=string']", stderr);
+	fputs(" [-s spectr][-tb inp][-tf inp][-rb inp][-rf inp][-C comm]", stderr);
 	fputs(" [input.xml]\n", stderr);
 	exit(1);
 }
@@ -775,6 +792,19 @@ main(int argc, char *argv[])
 		case 'c':		/* correct solid angle */
 			correct_solid_angle = 1;
 			continue;
+		case 'C':		/* comment */
+			if (ncomm >= MAXCOMM) {
+				fprintf(stderr, "%s: too many comments\n",
+						argv[0]);
+				return 1;
+			}
+			if (strchr(argv[++i], '>') != NULL) {
+				fprintf(stderr, "%s: illegal character in comment\n",
+						argv[0]);
+				return 1;
+			}
+			commlist[ncomm++] = argv[i];
+			continue;
 		case 't':		/* transmission */
 			if (i >= argc-1)
 				UsageExit(argv[0]);
@@ -831,6 +861,10 @@ main(int argc, char *argv[])
 				cur_spectrum = DSxbar31;
 			else if (!strcasecmp(argv[i], "CIE-Z"))
 				cur_spectrum = DSzbar31;
+			else if (!strcasecmp(argv[i], "CIE-u"))
+				cur_spectrum = DSuprime;
+			else if (!strcasecmp(argv[i], "CIE-v"))
+				cur_spectrum = DSvprime;
 			else if (!strcasecmp(argv[i], "NIR"))
 				cur_spectrum = DSnir;
 			else {