diff options
Diffstat (limited to 'libs/evoral/evoral/MIDIEvent.hpp')
| -rw-r--r-- | libs/evoral/evoral/MIDIEvent.hpp | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/libs/evoral/evoral/MIDIEvent.hpp b/libs/evoral/evoral/MIDIEvent.hpp new file mode 100644 index 0000000000..863103aa74 --- /dev/null +++ b/libs/evoral/evoral/MIDIEvent.hpp @@ -0,0 +1,89 @@ +/* This file is part of Evoral. + * Copyright (C) 2008 Dave Robillard <http://drobilla.net> + * Copyright (C) 2000-2008 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 + */ + +#ifndef EVORAL_MIDI_EVENT_HPP +#define EVORAL_MIDI_EVENT_HPP + +#include <evoral/Event.hpp> +#include <evoral/midi_events.h> +#ifdef EVORAL_MIDI_XML + #include <pbd/xml++.h> +#endif + +namespace Evoral { + +/** MIDI helper functions for an Event. + * + * This class contains no data, an event can be cast to a MIDIEvent + * but the application must make sure the event actually contains + * valid MIDI data for these functions to make sense. + */ +struct MIDIEvent : public Event { + MIDIEvent(EventType type=0, EventTime t=0, uint32_t s=0, uint8_t* b=NULL, bool alloc=false) + : Event(type, t, s, b, alloc) + {} + + MIDIEvent(const Event& copy, bool alloc) + : Event(copy, alloc) + {} + +#ifdef EVORAL_MIDI_XML + /** Event from XML ala http://www.midi.org/dtds/MIDIEvents10.dtd + */ + MIDIEvent(const XMLNode& event); + + /** Event to XML ala http://www.midi.org/dtds/MIDIEvents10.dtd + */ + boost::shared_ptr<XMLNode> to_xml() const; +#endif + + inline uint8_t type() const { return (_buffer[0] & 0xF0); } + inline void set_type(uint8_t type) { _buffer[0] = (0x0F & _buffer[0]) + | (0xF0 & type); } + inline uint8_t channel() const { return (_buffer[0] & 0x0F); } + inline void set_channel(uint8_t channel) { _buffer[0] = (0xF0 & _buffer[0]) + | (0x0F & channel); } + inline bool is_note_on() const { return (type() == MIDI_CMD_NOTE_ON); } + inline bool is_note_off() const { return (type() == MIDI_CMD_NOTE_OFF); } + inline bool is_cc() const { return (type() == MIDI_CMD_CONTROL); } + inline bool is_pitch_bender() const { return (type() == MIDI_CMD_BENDER); } + inline bool is_pgm_change() const { return (type() == MIDI_CMD_PGM_CHANGE); } + inline bool is_note() const { return (is_note_on() || is_note_off()); } + inline bool is_aftertouch() const { return (type() == MIDI_CMD_NOTE_PRESSURE); } + inline bool is_channel_pressure() const { return (type() == MIDI_CMD_CHANNEL_PRESSURE); } + inline uint8_t note() const { return (_buffer[1]); } + inline uint8_t velocity() const { return (_buffer[2]); } + inline uint8_t cc_number() const { return (_buffer[1]); } + inline uint8_t cc_value() const { return (_buffer[2]); } + inline uint8_t pitch_bender_lsb() const { return (_buffer[1]); } + inline uint8_t pitch_bender_msb() const { return (_buffer[2]); } + inline uint16_t pitch_bender_value() const { return ( ((0x7F & _buffer[2]) << 7) + | (0x7F & _buffer[1]) ); } + inline uint8_t pgm_number() const { return (_buffer[1]); } + inline void set_pgm_number(uint8_t number){ _buffer[1] = number; } + inline uint8_t aftertouch() const { return (_buffer[1]); } + inline uint8_t channel_pressure() const { return (_buffer[1]); } + inline bool is_channel_event() const { return (0x80 <= type()) && (type() <= 0xE0); } + inline bool is_smf_meta_event() const { return _buffer[0] == 0xFF; } + inline bool is_sysex() const { return _buffer[0] == 0xF0 + || _buffer[0] == 0xF7; } +}; + +} // namespace Evoral + +#endif // EVORAL_MIDI_EVENT_HPP |