--- ray/src/util/rcode_depth.c	2019/08/14 21:00:14	2.6
+++ ray/src/util/rcode_depth.c	2020/02/11 18:15:23	2.9
@@ -1,5 +1,5 @@
 #ifndef lint
-static const char RCSid[] = "$Id: rcode_depth.c,v 2.6 2019/08/14 21:00:14 greg Exp $";
+static const char RCSid[] = "$Id: rcode_depth.c,v 2.9 2020/02/11 18:15:23 greg Exp $";
 #endif
 /*
  * Encode and decode depth map using 16-bit integers
@@ -27,7 +27,7 @@ usage_exit(int code)
 	fputs("Usage: ", stderr);
 	fputs(progname, stderr);
 	fputs(
-	" [-d ref_depth/unit][-h[io]][-H[io]][-f[afd]] [input [output.dpt]]\n",
+	" [-d ref_depth/unit][-h[io]][-H[io]][-f[afd]][-x xr -y yr] [input [output.dpt]]\n",
 			stderr);
 	fputs("   Or: ", stderr);
 	fputs(progname, stderr);
@@ -281,6 +281,7 @@ pixel_points(DEPTHCODEC *dcp, int unbuf)
 int
 main(int argc, char *argv[])
 {
+	int		xres=0, yres=0;
 	int		conversion = CV_FWD;
 	int		bypixel = 0;
 	int		unbuffered = 0;
@@ -354,6 +355,12 @@ main(int argc, char *argv[])
 				usage_exit(1);
 			}
 			break;
+		case 'x':
+			xres = atoi(argv[++a]);
+			break;
+		case 'y':
+			yres = atoi(argv[++a]);
+			break;
 		case 'i':
 			bypixel++;
 			break;
@@ -365,7 +372,12 @@ main(int argc, char *argv[])
 		}
 	dc.hdrflags |= (conversion == CV_FWD) * HF_ENCODE;
 
-	if ((dc.hdrflags & (HF_RESIN|HF_RESOUT)) == HF_RESOUT) {
+	if ((xres > 0) & (yres > 0)) {
+		dc.hdrflags &= ~HF_RESIN;
+		dc.res.rt = PIXSTANDARD;
+		dc.res.xr = xres;
+		dc.res.yr = yres;
+	} else if ((dc.hdrflags & (HF_RESIN|HF_RESOUT)) == HF_RESOUT) {
 		fputs(progname, stderr);
 		fputs(": unknown resolution for output\n", stderr);
 		return 1;
@@ -417,6 +429,11 @@ main(int argc, char *argv[])
 					/* process data */
 	switch (conversion) {
 	case CV_FWD:			/* distance -> depth code */
+		if (!strcmp(dc.depth_unit, "1")) {
+			fputs(progname, stderr);
+			fputs(": warning - using reference depth of 1.0\n",
+					stderr);
+		}
 		if (!encode_depths(&dc))
 			return 1;
 		break;