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git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/trunk/lmms@23 0778d3d1-df1d-0410-868b-ea421aaaa00d
111 lines
2.5 KiB
C
111 lines
2.5 KiB
C
/*
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* midi.h - constants, structs etc. concerning MIDI
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*
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* Linux MultiMedia Studio
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* Copyright (c) 2004-2005 Tobias Doerffel <tobydox/at/users.sourceforge.net>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program (see COPYING); if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*
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*/
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#ifndef _MIDI_H
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#define _MIDI_H
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#include "types.h"
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enum midiEventTypes
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{
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// messages
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NOTE_OFF = 0x80,
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NOTE_ON = 0x90,
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KEY_PRESSURE = 0xA0,
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CONTROL_CHANGE = 0xB0,
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PROGRAM_CHANGE = 0xC0,
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CHANNEL_PRESSURE = 0xD0,
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PITCH_BEND = 0xE0,
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// system exclusive
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MIDI_SYSEX = 0xF0,
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// system common - never in midi files
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MIDI_TIME_CODE = 0xF1,
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MIDI_SONG_POSITION = 0xF2,
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MIDI_SONG_SELECT = 0xF3,
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MIDI_TUNE_REQUEST = 0xF6,
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MIDI_EOX = 0xF7,
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// system real-time - never in midi files
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MIDI_SYNC = 0xF8,
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MIDI_TICK = 0xF9,
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MIDI_START = 0xFA,
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MIDI_CONTINUE = 0xFB,
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MIDI_STOP = 0xFC,
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MIDI_ACTIVE_SENSING = 0xFE,
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MIDI_SYSTEM_RESET = 0xFF,
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// meta event - for midi files only
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MIDI_META_EVENT = 0xFF
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} ;
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const Sint8 MIDI_CHANNEL_COUNT = 16;
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struct midiEvent
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{
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midiEvent( midiEventTypes _type = MIDI_ACTIVE_SENSING,
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Sint8 _channel = 0,
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Uint16 _param1 = 0,
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Uint16 _param2 = 0 ) :
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m_type( _type ),
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m_channel( _channel ),
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m_sysExData( NULL )
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{
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m_data.m_param[0] = _param1;
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m_data.m_param[1] = _param2;
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}
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midiEvent( midiEventTypes _type, const char * _sysex_data,
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int _data_len ) :
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m_type( _type ),
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m_channel( 0 ),
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m_sysExData( _sysex_data )
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{
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m_data.m_sysExDataLen = _data_len;
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}
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inline Uint16 key( void ) const
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{
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return( m_data.m_param[0] );
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}
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inline Uint32 velocity( void ) const
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{
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return( m_data.m_param[1] );
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}
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midiEventTypes m_type; // MIDI event type
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Sint8 m_channel; // MIDI channel
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union
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{
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Uint16 m_param[2]; // first/second parameter (key/velocity)
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int m_sysExDataLen; // len of m_sysExData
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} m_data;
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const char * m_sysExData;
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} ;
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#endif
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