From: Han-Wen Nienhuys <hanwen@xs4all.nl>
Date: Mon, 8 Jan 2007 12:34:50 +0000 (+0100)
Subject: Don't assert for invalid midi dynamics.
X-Git-Tag: release/2.11.10-1~1
X-Git-Url: https://git.donarmstrong.com/?a=commitdiff_plain;h=b6731d2f15343245a9b8e1dff479461a5dc4bcbe;p=lilypond.git

Don't assert for invalid midi dynamics.
---

diff --git a/lily/audio-item.cc b/lily/audio-item.cc
index 3913527ea1..160b0dda21 100644
--- a/lily/audio-item.cc
+++ b/lily/audio-item.cc
@@ -90,16 +90,19 @@ Audio_span_dynamic::render ()
 
   assert (dynamics_[0]->volume_ >= 0);
 
-  if (dynamics_.back ()->volume_ > 0
-      && sign (dynamics_.back ()->volume_ - dynamics_[0]->volume_) != grow_dir_)
+  while  (dynamics_.back ()->volume_ > 0
+	  && dynamics_.size () > 1
+	  && sign (dynamics_.back ()->volume_ - dynamics_[0]->volume_) != grow_dir_)
     {
       dynamics_.erase (dynamics_.end () - 1);
-      assert (dynamics_.back ()->volume_ < 0);
     }
 
   if (dynamics_.size () <= 1)
-    return ;
-
+    {
+      programming_error ("(de)crescendo on items with specified volume.");
+      return ;
+    }
+  
   Real delta_v = grow_dir_ * 0.1;
   
   Real start_v = dynamics_[0]->volume_;