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Diffstat (limited to 'src/engine/MidiTriggerNode.cpp')
| -rw-r--r-- | src/engine/MidiTriggerNode.cpp | 144 |
1 files changed, 0 insertions, 144 deletions
diff --git a/src/engine/MidiTriggerNode.cpp b/src/engine/MidiTriggerNode.cpp deleted file mode 100644 index 3cde19e7..00000000 --- a/src/engine/MidiTriggerNode.cpp +++ /dev/null @@ -1,144 +0,0 @@ -/* This file is part of Ingen. - * Copyright (C) 2007 Dave Robillard <http://drobilla.net> - * - * Ingen 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. - * - * Ingen 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 - */ - -#include <cmath> -#include "raul/midi_events.h" -#include "MidiTriggerNode.hpp" -#include "AudioBuffer.hpp" -#include "InputPort.hpp" -#include "OutputPort.hpp" -#include "InternalPlugin.hpp" -#include "ProcessContext.hpp" -#include "EventBuffer.hpp" -#include "util.hpp" - -using namespace std; - -namespace Ingen { - -static InternalPlugin trigger_plugin(NS_INTERNALS "Trigger", "trigger", "Trigger"); - -MidiTriggerNode::MidiTriggerNode(const string& path, bool polyphonic, PatchImpl* parent, SampleRate srate, size_t buffer_size) - : NodeBase(&trigger_plugin, path, false, parent, srate, buffer_size) - , _learning(false) -{ - _ports = new Raul::Array<PortImpl*>(5); - - _midi_in_port = new InputPort(this, "input", 0, 1, DataType::EVENT, Atom(), _buffer_size); - _ports->at(0) = _midi_in_port; - - _note_port = new InputPort(this, "note", 1, 1, DataType::CONTROL, 60.0f, 1); - _note_port->set_variable("lv2:minimum", 0.0f); - _note_port->set_variable("lv2:maximum", 127.0f); - _note_port->set_variable("lv2:integer", true); - _ports->at(1) = _note_port; - - _gate_port = new OutputPort(this, "gate", 2, 1, DataType::AUDIO, 0.0f, _buffer_size); - _ports->at(2) = _gate_port; - - _trig_port = new OutputPort(this, "trigger", 3, 1, DataType::AUDIO, 0.0f, _buffer_size); - _ports->at(3) = _trig_port; - - _vel_port = new OutputPort(this, "velocity", 4, 1, DataType::AUDIO, 0.0f, _buffer_size); - _ports->at(4) = _vel_port; -} - - -void -MidiTriggerNode::process(ProcessContext& context) -{ - NodeBase::pre_process(context); - - uint32_t frames = 0; - uint32_t subframes = 0; - uint16_t type = 0; - uint16_t size = 0; - uint8_t* buf = NULL; - - EventBuffer* const midi_in = (EventBuffer*)_midi_in_port->buffer(0); - assert(midi_in->this_nframes() == context.nframes()); - - while (midi_in->get_event(&frames, &subframes, &type, &size, &buf)) { - const FrameTime time = context.start() + (FrameTime)frames; - - if (size >= 3) { - switch (buf[0] & 0xF0) { - case MIDI_CMD_NOTE_ON: - if (buf[2] == 0) - note_off(context, buf[1], time); - else - note_on(context, buf[1], buf[2], time); - break; - case MIDI_CMD_NOTE_OFF: - note_off(context, buf[1], time); - break; - case MIDI_CMD_CONTROL: - if (buf[1] == MIDI_CTL_ALL_NOTES_OFF - || buf[1] == MIDI_CTL_ALL_SOUNDS_OFF) - ((AudioBuffer*)_gate_port->buffer(0))->set_value(0.0f, context.start(), time); - default: - break; - } - } - - midi_in->increment(); - } - - NodeBase::post_process(context); -} - - -void -MidiTriggerNode::note_on(ProcessContext& context, uchar note_num, uchar velocity, FrameTime time) -{ - assert(time >= context.start() && time <= context.end()); - assert(time - context.start() < _buffer_size); - - if (_learning) { - _note_port->set_value(note_num); - ((AudioBuffer*)_note_port->buffer(0))->set_value( - (float)note_num, context.start(), context.end()); - _note_port->broadcast_value(context, true); - _learning = false; - } - - /*cerr << "[MidiTriggerNode] " << path() << " Note " << (int)note_num << " on @ " << time << endl;*/ - - Sample filter_note = ((AudioBuffer*)_note_port->buffer(0))->value_at(0); - if (filter_note >= 0.0 && filter_note < 127.0 && (note_num == (uchar)filter_note)) { - ((AudioBuffer*)_gate_port->buffer(0))->set_value(1.0f, context.start(), time); - ((AudioBuffer*)_trig_port->buffer(0))->set_value(1.0f, context.start(), time); - ((AudioBuffer*)_trig_port->buffer(0))->set_value(0.0f, context.start(), time + 1); - ((AudioBuffer*)_vel_port->buffer(0))->set_value(velocity / 127.0f, context.start(), time); - assert(((AudioBuffer*)_trig_port->buffer(0))->data()[time - context.start()] == 1.0f); - } -} - - -void -MidiTriggerNode::note_off(ProcessContext& context, uchar note_num, FrameTime time) -{ - assert(time >= context.start() && time <= context.end()); - assert(time - context.start() < _buffer_size); - - if (note_num == lrintf(((AudioBuffer*)_note_port->buffer(0))->value_at(0))) - ((AudioBuffer*)_gate_port->buffer(0))->set_value(0.0f, context.start(), time); -} - - -} // namespace Ingen - |