--- ray/src/px/xshowtrace.c	1990/09/22 10:53:57	1.1
+++ ray/src/px/xshowtrace.c	1991/11/12 16:04:29	2.1
@@ -1,3 +1,5 @@
+/* Copyright (c) 1991 Regents of the University of California */
+
 #ifndef lint
 static char SCCSid[] = "$SunId$ LBL";
 #endif
@@ -14,58 +16,67 @@ static char SCCSid[] = "$SunId$ LBL";
 
 #define MAXDEPTH	32		/* ridiculous ray tree depth */
 
-char	rtcom[] = "rtrace -h -otp -fa -x 1";
-char	xicom[] = "x11image";
+char	rtcom[] = "rtrace -h- -otp -fa -x 1";
+char	xicom[] = "ximage";
 
 VIEW	ourview = STDVIEW;		/* view for picture */
 int	xres, yres;
 
 char	*progname;			/* program name */
 
+char	*picture;			/* picture name */
+
 FILE	*pin;				/* input stream */
 
 Display	*theDisplay = NULL;		/* connection to server */
 
 struct node {				/* ray tree node */
-	double	ipt[2];
+	FVECT	ipt;
 	struct node	*sister;
 	struct node	*daughter;
 };
 
 #define newnode()	(struct node *)calloc(1, sizeof(struct node))
 
+int	slow = 0;		/* slow trace? */
 
+
 main(argc, argv)		/* takes both the octree and the image */
 int	argc;
 char	*argv[];
 {
 	int	i;
 	char	combuf[256];
-	Cursor	curs;
 
 	progname = argv[0];
-	if (argc < 3) {
-		fprintf(stderr, "Usage: %s [rtrace args] octree picture\n",
-				argv[0]);
+	for (i = 1; i < argc-2; i++)
+		if (!strcmp(argv[i], "-s"))
+			slow++;
+		else
+			break;
+	if (i > argc-2) {
+		fprintf(stderr, "Usage: %s [-s] [rtrace args] octree picture\n",
+				progname);
 		exit(1);
 	}
+	picture = argv[argc-1];
 					/* get the viewing parameters */
-	if (viewfile(argv[argc-1], &ourview, &xres, &yres) <= 0 ||
+	if (viewfile(picture, &ourview, &xres, &yres) <= 0 ||
 			setview(&ourview) != NULL) {
 		fprintf(stderr, "%s: cannot get view from \"%s\"\n",
-				argv[0], argv[argc-1]);
+				progname, picture);
 		exit(1);
 	}
 					/* open the display */
 	if ((theDisplay = XOpenDisplay(NULL)) == NULL) {
 		fprintf(stderr,
 		"%s: cannot open display; DISPLAY variable set?\n",
-				argv[0]);
+				progname);
 		exit(1);
 	}
 					/* build input command */
-	sprintf(combuf, "%s %s | %s", xicom, argv[argc-1], rtcom);
-	for (i = 1; i < argc-1; i++) {
+	sprintf(combuf, "%s %s | %s", xicom, picture, rtcom);
+	for ( ; i < argc-1; i++) {
 		strcat(combuf, " ");
 		strcat(combuf, argv[i]);
 	}
@@ -109,9 +120,10 @@ mainloop()				/* get and process input */
 		if (i == 0) {
 			setvec(sis[0]->ipt);
 			tracerays(sis[0]);
-			XFlush(theDisplay);
 			freetree(sis[0]);
 			sis[0] = NULL;
+			if (!slow)
+				XFlush(theDisplay);
 		}
 	}
 }
@@ -134,21 +146,21 @@ struct node	*tp;
 	register struct node	*kid;
 
 	for (kid = tp->daughter; kid != NULL; kid = kid->sister) {
-		tracerays(kid);
 		vector(tp->ipt, kid->ipt);
+		tracerays(kid);
 	}
 }
 
 
 strtoipt(ipt, str)		/* convert string x y z to image point */
-double	ipt[2];
+FVECT	ipt;
 char	*str;
 {
 	FVECT	pt;
 
 	if (sscanf(str, "%lf %lf %lf", &pt[0], &pt[1], &pt[2]) != 3)
 		return(-1);
-	viewpixel(&ipt[0], &ipt[1], NULL, &ourview, pt);
+	viewloc(ipt, &ourview, pt);
 	return(0);
 }
 
@@ -167,14 +179,16 @@ double	ipt[2];
 	XWindowAttributes	wa;
 	XColor	xc;
 	XGCValues	gcv;
-	int	pm, rx, ry, wx, wy, rw, cw;
+	int	rx, ry, wx, wy;
+	Window	rw, cw;
+	unsigned int	pm;
 					/* compute pointer location */
-	if (gwind == 0) {
-		XQueryPointer(theDisplay, rwind, &rw, &gwind,
-				&rx, &ry, &wx, &wy, &pm);
+	if (gwind == 0 &&
+		(gwind = xfindwind(theDisplay, rwind, picture, 2)) == 0) {
+		fprintf(stderr, "%s: cannot find display window!\n", progname);
+		exit(1);
 	}
-	XQueryPointer(theDisplay, gwind, &rw, &cw,
-			&rx, &ry, &wx, &wy, &pm);
+	XQueryPointer(theDisplay, gwind, &rw, &cw, &rx, &ry, &wx, &wy, &pm);
 	xoff = wx - ipt[0]*xres;
 	yoff = wy - (1.-ipt[1])*yres;
 					/* set graphics context */
@@ -199,4 +213,8 @@ double	ip1[2], ip2[2];
 	XDrawLine(theDisplay, gwind, vecGC,
 			(int)(ip1[0]*xres)+xoff, (int)((1.-ip1[1])*yres)+yoff,
 			(int)(ip2[0]*xres)+xoff, (int)((1.-ip2[1])*yres)+yoff);
+	if (slow) {
+		XFlush(theDisplay);
+		sleep(1);
+	}
 }