--- ray/src/px/ximage.c	1989/05/11 08:25:21	1.6
+++ ray/src/px/ximage.c	1989/09/12 13:04:42	1.9
@@ -141,7 +141,7 @@ char  *argv[];
 				/* get header */
 	getheader(fin, headline);
 				/* get picture dimensions */
-	if (fscanf(fin, "-Y %d +X %d\n", &ymax, &xmax) != 2)
+	if (fgetresolu(&xmax, &ymax, fin) != (YMAJOR|YDECR))
 		quiterr("bad picture size");
 				/* set view parameters */
 	if (gotview) {
@@ -345,7 +345,7 @@ redraw(x, y, w, h)			/* redraw section of window */
 int  x, y;
 int  w, h;
 {
-	if (map_rcolors(ourras) == NULL) {
+	if (ourras->ncolors && map_rcolors(ourras) == NULL) {
 		fprintf(stderr, "%s: cannot allocate colors\n", progname);
 		return(-1);
 	}
@@ -689,7 +689,7 @@ pixel  *l;
 }
 
 
-picreadcm(map)			/* do gamcor correction */
+picreadcm(map)			/* do gamma correction */
 colormap  map;
 {
 	extern double  pow();