lots of MIDI editing stuff. to be explained on the website when its done

git-svn-id: svn://localhost/ardour2/branches/3.0@5596 d708f5d6-7413-0410-9779-e7cbd77b26cf

libs/evoral/src/midi_util.cpp

@@ -0,0 +1,55 @@
+/* This file is part of Evoral.
+ * Copyright (C) 2008 Dave Robillard <http://drobilla.net>
+ * Copyright (C) 2009 Paul Davis
+ * 
+ * Evoral is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 2 of the License, or (at your option) any later
+ * version.
+ * 
+ * Evoral is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for details.
+ * 
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "evoral/midi_util.h"
+#include <cstdio>
+
+namespace Evoral {
+
+std::string
+midi_note_name (uint8_t val)
+{
+	if (val > 127) {
+		return "???";
+	}
+
+	static const char* notes[] = {
+		"c",
+		"c#",
+		"d",
+		"d#",
+		"e",
+		"f",
+		"f#",
+		"g",
+		"a",
+		"a#",
+		"b",
+		"b#"
+	};
+
+	int octave = val/12;
+	static char buf[8];
+	
+	val -= octave*12;
+
+	snprintf (buf, sizeof (buf), "%s%d", notes[val], octave);
+	return buf;
+}
+
+}