midi_util.cpp

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/* This file is part of Evoral.
 * Copyright (C) 2008 David 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",
                "G#",
                "A",
                "A#",
                "B"
        };

        /* MIDI note 0 is in octave -1 (in scientific pitch notation) */
        int octave = val / 12 - 1;
        static char buf[8];

        val = val % 12;

        snprintf (buf, sizeof (buf), "%s%d", notes[val], octave);
        return buf;
}

}