From: ian <ian>
Date: Sat, 23 Oct 2004 16:38:03 +0000 (+0000)
Subject: check for unsupported red passthrough
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ijackson/git?a=commitdiff_plain;h=17a81a02104f600326f3bcba98cd6d83ebf6d3fe;p=trains.git

check for unsupported red passthrough
---

diff --git a/layout/layout b/layout/layout
index 391d7c6..f50d33d 100755
--- a/layout/layout
+++ b/layout/layout
@@ -73,6 +73,9 @@ while (@ARGV && $ARGV[0] =~ m/^\-/) {
 		    die "angbits varies" if $subsegcmapangscale != 1<<$angbits;
 		}
 		$datum= hex($datum);
+		if ($datum & 0x0ff) {
+		    die "sorry, cannot put any movfeatpos or segment in red";
+		}
 		$subsegcmap{$csss}= sprintf("%.6f %.6f",
 					    (($datum >> 8) & 0xff)/255.0,
 					    (($datum >> 16) & 0xff)/255.0);