More juggling

git-svn-id: http://svn.drobilla.net/lad/grauph@15 a436a847-0d15-0410-975c-d299462d15a1

1 files changed, 0 insertions, 304 deletions

diff --git a/src/engine/MidiNoteNode.cpp b/src/engine/MidiNoteNode.cpp
deleted file mode 100644
index 9dc32f4a..00000000
--- a/src/engine/MidiNoteNode.cpp
+++ /dev/null
@@ -1,304 +0,0 @@
-/* This file is part of Om.  Copyright (C) 2006 Dave Robillard.
- * 
- * Om 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.
- * 
- * Om 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.,
- * 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-
-#include "MidiNoteNode.h"
-#include <cmath>
-#include <iostream>
-#include "MidiMessage.h"
-#include "InputPort.h"
-#include "OutputPort.h"
-#include "PortInfo.h"
-#include "Plugin.h"
-#include "Array.h"
-#include "Om.h"
-#include "OmApp.h"
-#include "AudioDriver.h"
-#include "util.h"
-#include "midi.h"
-
-using std::cerr; using std::cout; using std::endl;
-
-
-namespace Om {
-
-
-MidiNoteNode::MidiNoteNode(const string& path, size_t poly, Patch* parent, samplerate srate, size_t buffer_size)
-: InternalNode(path, poly, parent, srate, buffer_size),
-  m_voices(new Voice[poly]),
-  m_sustain(false)
-{
-	m_num_ports = 5;
-	m_ports.alloc(m_num_ports);
-	
-	m_midi_in_port = new InputPort<MidiMessage>(this, "MIDI In", 0, 1,
-		new PortInfo("MIDI In", MIDI, INPUT), m_buffer_size);
-	m_ports.at(0) = m_midi_in_port;
-
-	m_freq_port = new OutputPort<sample>(this, "Frequency", 1, poly,
-		new PortInfo("Frequency", AUDIO, OUTPUT, 440, 0, 99999), m_buffer_size);
-	m_ports.at(1) = m_freq_port;
-	
-	m_vel_port = new OutputPort<sample>(this, "Velocity", 2, poly,
-		new PortInfo("Velocity", AUDIO, OUTPUT, 0, 0, 1), m_buffer_size);
-	m_ports.at(2) = m_vel_port;
-	
-	m_gate_port = new OutputPort<sample>(this, "Gate", 3, poly,
-		new PortInfo("Gate", AUDIO, OUTPUT, 0, 0, 1), m_buffer_size);
-	m_ports.at(3) = m_gate_port;
-	
-	m_trig_port = new OutputPort<sample>(this, "Trigger", 4, poly,
-		new PortInfo("Trigger", AUDIO, OUTPUT, 0, 0, 1), m_buffer_size);
-	m_ports.at(4) = m_trig_port;
-	
-	m_plugin.type(Plugin::Internal);
-	m_plugin.plug_label("note_in");
-	m_plugin.name("Om Note Node (MIDI, OSC)");
-}
-
-
-MidiNoteNode::~MidiNoteNode()
-{
-	delete[] m_voices;
-}
-
-
-void
-MidiNoteNode::run(size_t nframes)
-{
-	InternalNode::run(nframes);
-	
-	MidiMessage ev;
-	
-	for (size_t i=0; i < m_midi_in_port->buffer(0)->filled_size(); ++i) {
-		ev = m_midi_in_port->buffer(0)->value_at(i);
-
-		switch (ev.buffer[0] & 0xF0) {
-		case MIDI_CMD_NOTE_ON:
-			if (ev.buffer[2] == 0)
-				note_off(ev.buffer[1], ev.time);
-			else
-				note_on(ev.buffer[1], ev.buffer[2], ev.time);
-			break;
-		case MIDI_CMD_NOTE_OFF:
-			note_off(ev.buffer[1], ev.time);
-			break;
-		case MIDI_CMD_CONTROL:
-			switch (ev.buffer[1]) {
-			case MIDI_CTL_ALL_NOTES_OFF:
-			case MIDI_CTL_ALL_SOUNDS_OFF:
-				all_notes_off(ev.time);
-				break;
-			case MIDI_CTL_SUSTAIN:
-				if (ev.buffer[2] > 63)
-					sustain_on();
-				else
-					sustain_off(ev.time);
-				break;
-			case MIDI_CMD_BENDER:
-
-				break;
-			}
-		default:
-			break;
-		}
-	}
-}
-
-
-void
-MidiNoteNode::note_on(uchar note_num, uchar velocity, samplecount offset)
-{
-	const jack_nframes_t time_stamp = om->audio_driver()->time_stamp();
-
-	assert(offset < m_buffer_size);
-	assert(note_num <= 127);
-
-	Key*   key        = &m_keys[note_num];
-	Voice* voice      = NULL;
-	size_t voice_num  = 0;
-	
-	// Look for free voices
-	for (size_t i=0; i < m_poly; ++i) {
-		if (m_voices[i].state == Voice::Voice::FREE) {
-			voice = &m_voices[i];
-			voice_num = i;
-			break;
-		}
-	}
-
-	// If we didn't find a free one, steal the oldest
-	if (voice == NULL) {
-		voice_num = 0;
-		voice = &m_voices[0];
-		jack_nframes_t oldest_time = m_voices[0].time;
-		for (size_t i=1; i < m_poly; ++i) {
-			if (m_voices[i].time < oldest_time) {
-				voice = &m_voices[i];
-				voice_num = i;
-				oldest_time = voice->time;
-			}
-		}
-	}		
-	assert(voice != NULL);
-	assert(voice == &m_voices[voice_num]);
-
-	//cerr << "[MidiNoteNode] Note on.  Key " << (int)note_num << ", Voice " << voice_num << endl;
-	
-	// Update stolen key, if applicable
-	if (voice->state == Voice::Voice::ACTIVE) {
-		assert(m_keys[voice->note].voice == voice_num);
-		assert(m_keys[voice->note].state == Key::ON_ASSIGNED);
-		m_keys[voice->note].state = Key::Key::ON_UNASSIGNED;
-		//cerr << "[MidiNoteNode] Stole voice " << voice_num << endl;
-	}
-	
-	// Store key information for later reallocation on note off
-	key->state = Key::Key::ON_ASSIGNED;
-	key->voice = voice_num;
-	key->time  = time_stamp;
-
-	// Trigger voice
-	voice->state = Voice::Voice::ACTIVE;
-	voice->note  = note_num;
-	voice->time  = time_stamp;
-	
-	assert(m_keys[voice->note].state == Key::Key::ON_ASSIGNED);
-	assert(m_keys[voice->note].voice == voice_num);
-	
-	// one-sample jitter hack to avoid having to deal with trigger sample "next time"
-	if (offset == (samplecount)(m_buffer_size-1))
-		--offset;
-	
-	m_freq_port->buffer(voice_num)->set(note_to_freq(note_num), offset);
-	m_vel_port->buffer(voice_num)->set(velocity/127.0, offset);
-	m_gate_port->buffer(voice_num)->set(1.0f, offset);
-	
-	// trigger (one sample)
-	m_trig_port->buffer(voice_num)->set(1.0f, offset, offset);
-	m_trig_port->buffer(voice_num)->set(0.0f, offset+1);
-
-	assert(key->state == Key::Key::ON_ASSIGNED);
-	assert(voice->state == Voice::Voice::ACTIVE);
-	assert(key->voice == voice_num);
-	assert(m_voices[key->voice].note == note_num);
-}
-
-
-void
-MidiNoteNode::note_off(uchar note_num, samplecount offset)
-{
-	assert(offset < m_buffer_size);
-
-	Key* key = &m_keys[note_num];
-
-	if (key->state == Key::ON_ASSIGNED) {
-		// Assigned key, turn off voice and key
-		assert(m_voices[key->voice].state == Voice::ACTIVE);
-		assert(m_voices[key->voice].note == note_num);
-		key->state = Key::OFF;
-
-		if ( ! m_sustain)
-			free_voice(key->voice, offset);
-		else
-			m_voices[key->voice].state = Voice::HOLDING;
-	}
-
-	key->state = Key::OFF;
-}
-
-	
-void
-MidiNoteNode::free_voice(size_t voice, samplecount offset)
-{
-	// Find a key to reassign to the freed voice (the newest, if there is one)
-	Key*  replace_key     = NULL;
-	uchar replace_key_num = 0;
-
-	for (uchar i = 0; i <= 127; ++i) {
-		if (m_keys[i].state == Key::ON_UNASSIGNED) {
-			if (replace_key == NULL || m_keys[i].time > replace_key->time) {
-				replace_key = &m_keys[i];
-				replace_key_num = i;
-			}
-		}
-	}
-
-	if (replace_key != NULL) {  // Found a key to assign to freed voice
-		assert(&m_keys[replace_key_num] == replace_key);
-		assert(replace_key->state == Key::ON_UNASSIGNED);
-		
-		// Change the freq but leave the gate high and don't retrigger
-		m_freq_port->buffer(voice)->set(note_to_freq(replace_key_num), offset);
-
-		replace_key->state = Key::ON_ASSIGNED;
-		replace_key->voice = voice;
-		m_keys[m_voices[voice].note].state = Key::ON_UNASSIGNED;
-		m_voices[voice].note = replace_key_num;
-		m_voices[voice].state = Voice::ACTIVE;
-	} else {
-		// No new note for voice, deactivate (set gate low)
-		//cerr << "[MidiNoteNode] Note off. Key " << (int)note_num << ", Voice " << voice << " Killed" << endl;
-		m_gate_port->buffer(voice)->set(0.0f, offset);
-		m_voices[voice].state = Voice::FREE;
-	}
-}
-
-
-void
-MidiNoteNode::all_notes_off(samplecount offset)
-{
-	//cerr << "Note off starting at sample " << offset << endl;
-	assert(offset < m_buffer_size);
-
-	// FIXME: set all keys to Key::OFF?
-	
-	for (size_t i=0; i < m_poly; ++i) {
-		m_gate_port->buffer(i)->set(0.0f, offset);
-		m_voices[i].state = Voice::FREE;
-	}
-}
-
-
-float
-MidiNoteNode::note_to_freq(int num)
-{
-	static const float A4 = 440.0f;
-	if (num >= 0 && num <= 119)
-		return A4 * powf(2.0f, (float)(num - 57.0f) / 12.0f);
-	return 1.0f;  // Some LADSPA plugins don't like freq=0
-}
-
-
-void
-MidiNoteNode::sustain_on()
-{
-	m_sustain = true;
-}
-
-
-void
-MidiNoteNode::sustain_off(samplecount offset)
-{
-	m_sustain = false;
-	
-	for (size_t i=0; i < m_poly; ++i)
-		if (m_voices[i].state == Voice::HOLDING)
-			free_voice(i, offset);
-}
-
-
-} // namespace Om
-