--- ray/src/px/macbethcal.c	1997/02/04 16:04:23	2.14
+++ ray/src/px/macbethcal.c	2003/06/05 19:29:34	2.18
@@ -1,9 +1,6 @@
-/* Copyright (c) 1997 Regents of the University of California */
-
 #ifndef lint
-static char SCCSid[] = "$SunId$ LBL";
+static const char	RCSid[] = "$Id: macbethcal.c,v 2.18 2003/06/05 19:29:34 schorsch Exp $";
 #endif
-
 /*
  * Calibrate a scanned MacBeth Color Checker Chart
  *
@@ -15,9 +12,9 @@ static char SCCSid[] = "$SunId$ LBL";
 
 #include <stdio.h>
 #include <math.h>
-#ifdef MSDOS
-#include <fcntl.h>
-#endif
+#include <time.h>
+
+#include "platform.h"
 #include "color.h"
 #include "resolu.h"
 #include "pmap.h"
@@ -100,6 +97,10 @@ short	mbneu[NMBNEU] = {Black,Neutral35,Neutral5,Neutra
 #define  RG_ORIG	02	/* original color region */
 #define  RG_CORR	04	/* corrected color region */
 
+#ifndef  DISPCOM
+#define  DISPCOM	"ximage -op %s"
+#endif
+
 int	scanning = 1;		/* scanned input (or recorded output)? */
 double	irrad = 1.0;		/* irradiance multiplication factor */
 int	rawmap = 0;		/* put out raw color mapping? */
@@ -121,9 +122,7 @@ WARP3D	*wcor = NULL;		/* color space warp */
 FILE	*debugfp = NULL;	/* debug output picture */
 char	*progname;
 
-extern char	*malloc();
 
-
 main(argc, argv)
 int	argc;
 char	**argv;
@@ -141,9 +140,7 @@ char	**argv;
 				perror(argv[i]);
 				exit(1);
 			}
-#ifdef MSDOS
-			setmode(fileno(debugfp), O_BINARY);
-#endif
+			SET_FILE_BINARY(debugfp);
 			newheader("RADIANCE", debugfp);		/* start */
 			printargs(argc, argv, debugfp);		/* header */
 			break;
@@ -160,6 +157,9 @@ char	**argv;
 			bounds[3][1] = atoi(argv[++i]);
 			scanning = 2;
 			break;
+		case 'P':				/* pick position */
+			scanning = 3;
+			break;
 		case 'i':				/* irradiance factor */
 			i++;
 			if (badarg(argc-i, argv+i, "f"))
@@ -185,14 +185,18 @@ char	**argv;
 		exit(1);
 	}
 	if (scanning) {			/* load input picture header */
-#ifdef MSDOS
-		setmode(fileno(stdin), O_BINARY);
-#endif
+		SET_FILE_BINARY(stdin);
 		if (checkheader(stdin, COLRFMT, NULL) < 0 ||
 				fgetresolu(&xmax, &ymax, stdin) < 0) {
 			fprintf(stderr, "%s: bad input picture\n", progname);
 			exit(1);
 		}
+		if (scanning == 3) {
+			if (i >= argc)
+				goto userr;
+			pickchartpos(argv[i]);
+			scanning = 2;
+		}
 	} else {			/* else set default xmax and ymax */
 		xmax = 512;
 		ymax = 2*512/3;
@@ -214,7 +218,7 @@ char	**argv;
 
 		printf("# Color correspondence produced by:\n#\t\t");
 		printargs(argc, argv, stdout);
-		printf("#\tUsage: pcwarp -m %s uncorrected.pic > corrected.pic\n",
+		printf("#\tUsage: pcwarp %s uncorrected.pic > corrected.pic\n",
 				i+1 < argc ? argv[i+1] : "{this_file}");
 		printf("#\t   Or: pcond [options] -m %s orig.pic > output.pic\n",
 				i+1 < argc ? argv[i+1] : "{this_file}");
@@ -245,7 +249,7 @@ char	**argv;
 	exit(0);
 userr:
 	fprintf(stderr,
-"Usage: %s [-d dbg.pic][-p xul yul xur yur xll yll xlr ylr][-i irrad][-m] input.pic [output.{cal|cwp}]\n",
+"Usage: %s [-d dbg.pic][-P | -p xul yul xur yur xll yll xlr ylr][-i irrad][-m] input.pic [output.{cal|cwp}]\n",
 			progname);
 	fprintf(stderr, "   or: %s [-d dbg.pic][-i irrad][-m] -c [xyY.dat [output.{cal|cwp}]]\n",
 			progname);
@@ -349,7 +353,7 @@ getpicture()				/* load in picture colors */
 		scalecolor(inpRGB[i], d);
 		inpflags |= 1L<<i;
 	}
-	free((char *)scanln);
+	free((void *)scanln);
 }
 
 
@@ -699,7 +703,7 @@ picdebug()			/* put out debugging picture */
 	}
 						/* clean up */
 	fclose(debugfp);
-	free((char *)scan);
+	free((void *)scan);
 }
 
 
@@ -769,5 +773,43 @@ clrdebug()			/* put out debug picture from color input
 	}
 						/* clean up */
 	fclose(debugfp);
-	free((char *)scan);
+	free((void *)scan);
+}
+
+
+getpos(name, bnds, fp)		/* get boundary position */
+char	*name;
+int	bnds[2];
+FILE	*fp;
+{
+	char	buf[64];
+
+	fprintf(stderr, "\tSelect corner: %s\n", name);
+	if (fgets(buf, sizeof(buf), fp) == NULL ||
+			sscanf(buf, "%d %d", &bnds[0], &bnds[1]) != 2) {
+		fprintf(stderr, "%s: read error from display process\n",
+				progname);
+		exit(1);
+	}
+}
+
+
+pickchartpos(pfn)		/* display picture and pick chart location */
+char	*pfn;
+{
+	char	combuf[512];
+	FILE	*pfp;
+
+	sprintf(combuf, DISPCOM, pfn);
+	if ((pfp = popen(combuf, "r")) == NULL) {
+		perror(combuf);
+		exit(1);
+	}
+	fputs("Use middle mouse button to select chart corners:\n", stderr);
+	getpos("upper left (dark skin)", bounds[0], pfp);
+	getpos("upper right (bluish green)", bounds[1], pfp);
+	getpos("lower left (white)", bounds[2], pfp);
+	getpos("lower right (black)", bounds[3], pfp);
+	fputs("Got it -- quit display program.\n", stderr);
+	pclose(pfp);
 }