From 825bb4c3e7f222f19ae4e49cd4f013c2a1832fa8 Mon Sep 17 00:00:00 2001
From: Jonathan Moore Liles <j.liles@unix.net>
Date: Wed, 14 May 2008 21:14:56 -0500
Subject: [PATCH] Don't die if render_tempomap() is called with an empty map.

---
 Timeline/Timeline.C | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Timeline/Timeline.C b/Timeline/Timeline.C
index e1b36dd..2851a6e 100644
--- a/Timeline/Timeline.C
+++ b/Timeline/Timeline.C
@@ -473,6 +473,10 @@ Timeline::render_tempomap( nframes_t start, nframes_t length, measure_line_callb
 
 done:
 
+    if ( ! f )
+        /* no points? */
+        return pos;
+
     pos.frame = f;
     pos.tempo = bpm;
     pos.beats_per_bar = sig.beats_per_bar;