X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Fmidi_state_tracker.cc;h=4e43e7269337fdd99145c91a988ea9e6a20a759d;hb=4d112a8e6b90fa64a5cd333042044768111ba994;hp=c2aa19e5c8bf8c60ddd4ede546c90b7f384902dd;hpb=78c21c3475c80104190d75f58437f567ada4da45;p=ardour.git diff --git a/libs/ardour/midi_state_tracker.cc b/libs/ardour/midi_state_tracker.cc index c2aa19e5c8..4e43e72693 100644 --- a/libs/ardour/midi_state_tracker.cc +++ b/libs/ardour/midi_state_tracker.cc @@ -1,25 +1,27 @@ /* - Copyright (C) 2006-2008 Paul Davis + Copyright (C) 2006-2008 Paul Davis Author: Torben Hohn - + 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., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include -#include -#include +#include "ardour/event_type_map.h" +#include "ardour/midi_ring_buffer.h" +#include "ardour/midi_source.h" +#include "ardour/midi_state_tracker.h" using namespace std; using namespace ARDOUR; @@ -27,53 +29,149 @@ using namespace ARDOUR; MidiStateTracker::MidiStateTracker () { - _active_notes.reset(); + reset (); +} + +void +MidiStateTracker::reset () +{ + memset (_active_notes, 0, sizeof (_active_notes)); + _on = 0; } void -MidiStateTracker::track_note_onoffs (Evoral::MIDIEvent &event) +MidiStateTracker::track_note_onoffs (const Evoral::MIDIEvent& event) { if (event.is_note_on()) { - _active_notes [event.note() + 128 * event.channel()] = true; + add (event.note(), event.channel()); } else if (event.is_note_off()){ - _active_notes [event.note() + 128 * event.channel()] = false; + remove (event.note(), event.channel()); } } -bool -MidiStateTracker::track (const MidiBuffer::iterator &from, const MidiBuffer::iterator &to) +void +MidiStateTracker::add (uint8_t note, uint8_t chn) +{ + ++_active_notes[note + 128 * chn]; + ++_on; +} + +void +MidiStateTracker::remove (uint8_t note, uint8_t chn) { - bool ret = false; + switch (_active_notes[note + 128 * chn]) { + case 0: + break; + case 1: + --_on; + _active_notes [note + 128 * chn] = 0; + break; + default: + --_active_notes [note + 128 * chn]; + break; + + } +} + +void +MidiStateTracker::track (const MidiBuffer::iterator &from, const MidiBuffer::iterator &to, bool& looped) +{ + looped = false; for (MidiBuffer::iterator i = from; i != to; ++i) { - if ((*i).event_type() == LoopEventType) { - ret = true; + const Evoral::MIDIEvent ev(*i, false); + if (ev.event_type() == LoopEventType) { + looped = true; continue; } - track_note_onoffs (*i); + track_note_onoffs (ev); } - return ret; } void -MidiStateTracker::resolve_notes (MidiBuffer &dst, nframes_t time) +MidiStateTracker::resolve_notes (MidiBuffer &dst, nframes64_t time) { - // Dunno if this is actually faster but at least it fills our cacheline. - if (_active_notes.none ()) + if (!_on) { return; + } for (int channel = 0; channel < 16; ++channel) { for (int note = 0; note < 128; ++note) { - if (_active_notes[channel * 128 + note]) { + while (_active_notes[note + 128 * channel]) { uint8_t buffer[3] = { MIDI_CMD_NOTE_OFF | channel, note, 0 }; - Evoral::MIDIEvent noteoff (time, MIDI_CMD_NOTE_OFF, 3, buffer, false); + Evoral::MIDIEvent noteoff + (MIDI_CMD_NOTE_OFF, time, 3, buffer, false); + dst.push_back (noteoff); + _active_notes[note + 128 * channel]--; + } + } + } + _on = 0; +} - dst.push_back (noteoff); +void +MidiStateTracker::resolve_notes (Evoral::EventSink &dst, nframes64_t time) +{ + uint8_t buf[3]; - _active_notes [channel * 128 + note] = false; + if (!_on) { + return; + } + + for (int channel = 0; channel < 16; ++channel) { + for (int note = 0; note < 128; ++note) { + while (_active_notes[note + 128 * channel]) { + buf[0] = MIDI_CMD_NOTE_OFF|channel; + buf[1] = note; + buf[2] = 0; + dst.write (time, EventTypeMap::instance().midi_event_type (buf[0]), 3, buf); + _active_notes[note + 128 * channel]--; + } + } + } + _on = 0; +} + +void +MidiStateTracker::resolve_notes (MidiSource& src, Evoral::MusicalTime time) +{ + if (!_on) { + return; + } + + /* NOTE: the src must be locked */ + + for (int channel = 0; channel < 16; ++channel) { + for (int note = 0; note < 128; ++note) { + while (_active_notes[note + 128 * channel]) { + Evoral::MIDIEvent ev ((MIDI_CMD_NOTE_OFF|channel), time, 3, 0, true); + ev.set_type (MIDI_CMD_NOTE_OFF); + ev.set_channel (channel); + ev.set_note (note); + ev.set_velocity (0); + src.append_event_unlocked_beats (ev); + _active_notes[note + 128 * channel]--; + /* don't stack events up at the same time + */ + time += 1.0/128.0; } } } + _on = 0; } +void +MidiStateTracker::dump (ostream& o) +{ + o << "******\n"; + for (int c = 0; c < 16; ++c) { + for (int x = 0; x < 128; ++x) { + if (_active_notes[c * 128 + x]) { + o << "Channel " << c+1 << " Note " << x << " is on (" + << (int) _active_notes[c*128+x] << "times)\n"; + } + } + } + o << "+++++\n"; +}