--- ray/src/px/ttyimage.c	1989/10/20 20:36:08	1.4
+++ ray/src/px/ttyimage.c	1991/11/11 14:01:29	1.8
@@ -1,4 +1,4 @@
-/* Copyright (c) 1986 Regents of the University of California */
+/* Copyright (c) 1991 Regents of the University of California */
 
 #ifndef lint
 static char SCCSid[] = "$SunId$ LBL";
@@ -13,6 +13,7 @@ static char SCCSid[] = "$SunId$ LBL";
 #include  <stdio.h>
 
 #include  "color.h"
+#include  "resolu.h"
 
 
 #define  NCOLS		133
@@ -25,7 +26,6 @@ char  **argv;
 	FILE  *input;
 	int  xres, yres;
 	COLR  scanline[NCOLS];
-	char  sbuf[256];
 	register int  i, j;
 	
 	if (argc < 2)
@@ -35,12 +35,10 @@ char  **argv;
 		exit(1);
 	}
 	
-				/* discard header */
-	while (fgets(sbuf, sizeof(sbuf), input) != NULL && sbuf[0] != '\n')
-		;
 				/* get picture dimensions */
-	if (fgetresolu(&xres, &yres, input) != (YMAJOR|YDECR)) {
-		fprintf(stderr, "%s: bad picture size\n", argv[0]);
+	if (checkheader(input, COLRFMT, NULL) < 0 ||
+			fgetresolu(&xres, &yres, input) < 0) {
+		fprintf(stderr, "%s: bad picture format\n", argv[0]);
 		exit(1);
 	}
 	if (xres > NCOLS) {
@@ -53,7 +51,7 @@ char  **argv;
 			fprintf(stderr, "%s: read error\n", argv[0]);
 			exit(1);
 		}
-		normcolrs(scanline, xres);
+		normcolrs(scanline, xres, 0);
 		for (j = 0; j < xres; j++)
 			putchar(shade(scanline[j]));
 		putchar('\n');