X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Fmidi_state_tracker.cc;h=73b6fb639e1ea0e1db4823fcdc92449e5863ea44;hb=5b4c3aa226dc95f33dc3ffae6669a24f5e8b8fe0;hp=3871c139df6bf9a7d822d8209e9a02b7ee328440;hpb=44ac5f5097af43ec6bf60489d73a532f43702bf3;p=ardour.git diff --git a/libs/ardour/midi_state_tracker.cc b/libs/ardour/midi_state_tracker.cc index 3871c139df..73b6fb639e 100644 --- a/libs/ardour/midi_state_tracker.cc +++ b/libs/ardour/midi_state_tracker.cc @@ -1,25 +1,33 @@ /* - 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 "pbd/compose.h" +#include "pbd/stacktrace.h" + +#include "evoral/EventSink.hpp" + +#include "ardour/debug.h" +#include "ardour/event_type_map.h" +#include "ardour/midi_source.h" +#include "ardour/midi_state_tracker.h" using namespace std; using namespace ARDOUR; @@ -27,54 +35,185 @@ using namespace ARDOUR; MidiStateTracker::MidiStateTracker () { - _active_notes.reset(); + reset (); } void -MidiStateTracker::track_note_onoffs (const Evoral::MIDIEvent &event) +MidiStateTracker::reset () +{ + DEBUG_TRACE (PBD::DEBUG::MidiTrackers, string_compose ("%1: reset\n", this)); + memset (_active_notes, 0, sizeof (_active_notes)); + _on = 0; +} + +void +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 +void +MidiStateTracker::add (uint8_t note, uint8_t chn) +{ + if (_active_notes[note+128 * chn] == 0) { + ++_on; + } + ++_active_notes[note + 128 * chn]; + + if (_active_notes[note+128 * chn] > 1) { + cerr << this << " note " << (int) note << '/' << (int) chn << " was already on, now at " << (int) _active_notes[note+128*chn] << endl; + } + + DEBUG_TRACE (PBD::DEBUG::MidiTrackers, string_compose ("%1 ON %2/%3 voices %5 total on %4\n", + this, (int) note, (int) chn, _on, + (int) _active_notes[note+128 * chn])); +} + +void +MidiStateTracker::remove (uint8_t note, uint8_t chn) +{ + 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; + + } + DEBUG_TRACE (PBD::DEBUG::MidiTrackers, string_compose ("%1 OFF %2/%3 current voices = %5 total on %4\n", + this, (int) note, (int) chn, _on, + (int) _active_notes[note+128 * chn])); +} + +void MidiStateTracker::track (const MidiBuffer::iterator &from, const MidiBuffer::iterator &to) { - bool ret = false; + // DEBUG_TRACE (PBD::DEBUG::MidiTrackers, string_compose ("%1 track notes\n", this)); for (MidiBuffer::iterator i = from; i != to; ++i) { - const Evoral::MIDIEvent ev(*i, false); - if (ev.event_type() == LoopEventType) { - ret = true; - continue; + const Evoral::MIDIEvent ev(*i, false); + + /* catch AllNotesOff message and turn off all notes + */ + + if (ev.type() == MIDI_CTL_ALL_NOTES_OFF) { + cerr << "State tracker sees ALL_NOTES_OFF, silenceing " << sizeof (_active_notes) << endl; + memset (_active_notes, 0, sizeof (_active_notes)); + _on = 0; + } else { + track_note_onoffs (ev); } + } +} + +void +MidiStateTracker::resolve_notes (MidiBuffer &dst, framepos_t time) +{ + DEBUG_TRACE (PBD::DEBUG::MidiTrackers, string_compose ("%1 MB-resolve notes @ %2 on = %3\n", this, time, _on)); + + if (!_on) { + return; + } - track_note_onoffs (ev); + for (int channel = 0; channel < 16; ++channel) { + for (int note = 0; note < 128; ++note) { + while (_active_notes[note + 128 * channel]) { + uint8_t buffer[3] = { ((uint8_t) (MIDI_CMD_NOTE_OFF | channel)), uint8_t (note), 0 }; + Evoral::MIDIEvent noteoff + (MIDI_CMD_NOTE_OFF, time, 3, buffer, false); + /* note that we do not care about failure from + push_back() ... should we warn someone ? + */ + dst.push_back (noteoff); + _active_notes[note + 128 * channel]--; + DEBUG_TRACE (PBD::DEBUG::MidiTrackers, string_compose ("%1: MB-resolved note %2/%3 at %4\n", + this, (int) note, (int) channel, time)); + } + } } - return ret; + _on = 0; } void -MidiStateTracker::resolve_notes (MidiBuffer &dst, nframes_t time) +MidiStateTracker::resolve_notes (Evoral::EventSink &dst, framepos_t time) { - // Dunno if this is actually faster but at least it fills our cacheline. - if (_active_notes.none ()) + uint8_t buf[3]; + + DEBUG_TRACE (PBD::DEBUG::MidiTrackers, string_compose ("%1 EVS-resolve notes @ %2 on = %3\n", this, time, _on)); + + if (!_on) { return; + } for (int channel = 0; channel < 16; ++channel) { for (int note = 0; note < 128; ++note) { - if (_active_notes[channel * 128 + note]) { - uint8_t buffer[3] = { MIDI_CMD_NOTE_OFF | channel, note, 0 }; - Evoral::MIDIEvent noteoff (time, MIDI_CMD_NOTE_OFF, 3, buffer, false); + while (_active_notes[note + 128 * channel]) { + buf[0] = MIDI_CMD_NOTE_OFF|channel; + buf[1] = note; + buf[2] = 0; + /* note that we do not care about failure from + write() ... should we warn someone ? + */ + dst.write (time, EventTypeMap::instance().midi_event_type (buf[0]), 3, buf); + _active_notes[note + 128 * channel]--; + DEBUG_TRACE (PBD::DEBUG::MidiTrackers, string_compose ("%1: EVS-resolved note %2/%3 at %4\n", + this, (int) note, (int) channel, time)); + } + } + } + _on = 0; +} - dst.push_back (noteoff); +void +MidiStateTracker::resolve_notes (MidiSource& src, Evoral::MusicalTime time) +{ + DEBUG_TRACE (PBD::DEBUG::MidiTrackers, string_compose ("%1 MS-resolve notes @ %2 on = %3\n", this, time, _on)); - _active_notes [channel * 128 + note] = false; + 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); + DEBUG_TRACE (PBD::DEBUG::MidiTrackers, string_compose ("%1: MS-resolved note %2/%3 at %4\n", + this, (int) note, (int) channel, time)); + _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"; +}