MIDIEnums.hxx

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/*
 * Copyright (c) 2001-2004 MUSIC TECHNOLOGY GROUP (MTG)
 *                         UNIVERSITAT POMPEU FABRA
 *
 *
 * This program 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.
 *
 * This program 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 more 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

#ifndef __MIDIEnums__
#define __MIDIEnums__

namespace CLAM {

class MIDI
{
public:
        enum Message {
                eNoteOff = 0,
                eNoteOn = 1,
                ePolyAftertouch = 2,
                eControlChange = 3,
                eProgramChange = 4,
                eAftertouch = 5,
                ePitchbend = 6,
                eSystem = 7,
                // and some special stuff
                eNoteOnOff = 8
        };

        struct MessageInfo
        {
                int length;
                const char* name;
                const char* field[3];
        };

        enum SysMsg {
                eExclusiveStart = 0,
                eQuarterFrams = 1,
                eSongPosition = 2,
                eSongSelect = 3,
                eUndefined1 = 4,
                eUndefined2 = 5,
                eTuneRequest = 6,
                eExclusiveEnd = 7,
                eTimingCloce = 8,
                eTimingTice = 9,
                eStart = 10,
                eContinue = 11,
                eStop = 12,
                eUndefined3 = 13,
                eActiveSensing = 14,
                eSystemReset = 15
        };

        static Message StatusByteToMessage(const unsigned char& byte)
        {
                return (Message)((byte >> 4)&7);
        }

        static SysMsg StatusByteToSysMsg(const unsigned char& b)
        {
                return (SysMsg)(b&15);
        }

        static const MessageInfo& GetMessageInfo(Message msg)
        {
                return sMessageInfo[int(msg)];
        }

        static const MessageInfo& GetMessageInfo(int msg)
        {
                return sMessageInfo[msg];
        }
private:
        static const MessageInfo sMessageInfo[9];

friend class MIDIDevice;

        static const int sNBytesPerSysMsg[16];

};

}

#endif