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/* This file is part of Evoral.
* Copyright (C) 2008 David 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 <cmath>
#include <boost/shared_ptr.hpp>
#include "evoral/visibility.h"
#include "evoral/Event.hpp"
#include "evoral/midi_events.h"
#ifdef EVORAL_MIDI_XML
class XMLNode;
#endif
namespace Evoral {
/** MIDI helper functions for an Event.
*
* This class contains no data, an Evoral::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.
*/
template<typename Time>
class /*LIBEVORAL_API*/ MIDIEvent : public Event<Time> {
public:
MIDIEvent(EventType type=0, Time time=0, uint32_t size=0, uint8_t* buf=NULL, bool alloc=false)
: Event<Time>(type, time, size, buf, alloc)
{}
MIDIEvent(const Event<Time>& copy, bool alloc)
: Event<Time>(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 (this->_buf[0] & 0xF0); }
inline void set_type(uint8_t type) { this->_buf[0] = (0x0F & this->_buf[0])
| (0xF0 & type); }
inline uint8_t channel() const { return (this->_buf[0] & 0x0F); }
inline void set_channel(uint8_t channel) { this->_buf[0] = (0xF0 & this->_buf[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_poly_pressure() 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 (this->_buf[1]); }
inline void set_note(uint8_t n) { this->_buf[1] = n; }
inline uint8_t velocity() const { return (this->_buf[2]); }
inline void set_velocity(uint8_t value) { this->_buf[2] = value; }
inline void scale_velocity(float factor) {
if (factor < 0) factor = 0;
this->_buf[2] = (uint8_t) lrintf (this->_buf[2]*factor);
if (this->_buf[2] > 127) this->_buf[2] = 127;
}
inline uint8_t cc_number() const { return (this->_buf[1]); }
inline void set_cc_number(uint8_t number) { this->_buf[1] = number; }
inline uint8_t cc_value() const { return (this->_buf[2]); }
inline void set_cc_value(uint8_t value) { this->_buf[2] = value; }
inline uint8_t pitch_bender_lsb() const { return (this->_buf[1]); }
inline uint8_t pitch_bender_msb() const { return (this->_buf[2]); }
inline uint16_t pitch_bender_value() const { return ( ((0x7F & this->_buf[2]) << 7)
| (0x7F & this->_buf[1]) ); }
inline uint8_t pgm_number() const { return (this->_buf[1]); }
inline void set_pgm_number(uint8_t number) { this->_buf[1] = number; }
inline uint8_t poly_note() const { return (this->_buf[1]); }
inline uint8_t poly_pressure() const { return (this->_buf[2]); }
inline uint8_t channel_pressure() const { return (this->_buf[1]); }
inline bool is_channel_event() const { return (0x80 <= type()) && (type() <= 0xE0); }
inline bool is_smf_meta_event() const { return this->_buf[0] == 0xFF; }
inline bool is_sysex() const { return this->_buf[0] == 0xF0
|| this->_buf[0] == 0xF7; }
inline bool is_spp() const { return this->_buf[0] == 0xF2 && this->size() == 1; }
inline bool is_mtc_quarter() const { return this->_buf[0] == 0xF1 && this->size() == 1; }
inline bool is_mtc_full() const {
return this->size() == 10 && this->_buf[0] == 0xf0 && this->_buf[1] == 0x7f &&
this->_buf[3] == 0x01 && this->_buf[4] == 0x01;
}
inline uint16_t value() const {
switch (type()) {
case MIDI_CMD_CONTROL:
return cc_value();
case MIDI_CMD_BENDER:
return pitch_bender_value();
case MIDI_CMD_NOTE_PRESSURE:
return poly_pressure();
case MIDI_CMD_CHANNEL_PRESSURE:
return channel_pressure();
default:
return 0;
}
}
};
} // namespace Evoral
#endif // EVORAL_MIDI_EVENT_HPP
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