X-Git-Url: http://git.hungrycats.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=hacks%2Fjigsaw.c;h=bdbe44684a79929531e4a8658e04342a276cd443;hb=8eb2873d7054e705c4e83f22d18c40946a9e2529;hp=246c9da77402f70df1b9a94b8b47705a36f77c8d;hpb=f65151994eba80ecabcdac6eef6fa0dde7e2d45b;p=xscreensaver

diff --git a/hacks/jigsaw.c b/hacks/jigsaw.c
index 246c9da7..bdbe4468 100644
--- a/hacks/jigsaw.c
+++ b/hacks/jigsaw.c
@@ -1,4 +1,4 @@
-/* xscreensaver, Copyright (c) 1997, 1998 Jamie Zawinski <jwz@jwz.org>
+/* xscreensaver, Copyright (c) 1997, 1998, 2001 Jamie Zawinski <jwz@jwz.org>
  *
  * Permission to use, copy, modify, distribute, and sell this software and its
  * documentation for any purpose is hereby granted without fee, provided that
@@ -190,6 +190,14 @@ jigsaw_init(Display *dpy, Window window)
   x_border = (xgwa.width  - (width  * GRID_WIDTH)) / 2;
   y_border = (xgwa.height - (height * GRID_WIDTH)) / 2;
 
+  if (width < 4 || height < 4)
+    {
+      fprintf (stderr, "%s: window too small: %dx%d (need at least %dx%d)\n",
+               progname, xgwa.width, xgwa.height,
+               GRID_WIDTH * 4, GRID_HEIGHT * 4);
+      exit (1);
+    }
+
   if (!state)
     state = (XPoint *) malloc(width * height * sizeof(XPoint));
   gc = XCreateGC (dpy, window, 0, &gcv);
@@ -537,6 +545,9 @@ char *defaults [] = {
   ".foreground:		Gray40",
   "*delay:		70000",
   "*delay2:		5",
+#ifdef __sgi    /* really, HAVE_READ_DISPLAY_EXTENSION */
+  "*visualID:		Best",
+#endif
   0
 };