extract _snd modules; move some logic to PhrasePool impl

This commit is contained in:
🪞👃🪞 2024-10-12 08:23:42 +03:00
parent d2cda0c54d
commit cae8556c91
5 changed files with 212 additions and 193 deletions

View file

@ -11,8 +11,8 @@ use rand::distributions::uniform::UniformSampler;
submod! {
arranger arranger_cmd arranger_tui
sequencer sequencer_cmd sequencer_tui
transport transport_cmd transport_tui
sequencer sequencer_cmd sequencer_tui sequencer_snd
transport transport_cmd transport_tui transport_snd
}
pub const PPQ: usize = 96;

View file

@ -102,7 +102,7 @@ pub struct PhrasePlayer<E: Engine> {
/// Output from current sequence.
pub midi_out: Option<Port<MidiOut>>,
/// MIDI output buffer
midi_out_buf: Vec<Vec<Vec<u8>>>,
pub midi_out_buf: Vec<Vec<Vec<u8>>>,
/// Send all notes off
pub reset: bool, // TODO?: after Some(nframes)
}
@ -148,6 +148,49 @@ impl<E: Engine> PhrasePool<E> {
}
return None
}
pub fn len (&self) -> usize {
self.phrases.len()
}
pub fn index_before (&self, index: usize) -> usize {
index.overflowing_sub(1).0.min(self.len() - 1)
}
pub fn index_after (&self, index: usize) -> usize {
(index + 1) % self.len()
}
pub fn select_prev (&mut self) {
self.phrase = self.index_before(self.phrase)
}
pub fn select_next (&mut self) {
self.phrase = self.index_after(self.phrase)
}
pub fn append_new (&mut self, name: Option<&str>, color: Option<Color>) {
let mut phrase = Phrase::default();
phrase.name = String::from(name.unwrap_or("(no name)"));
phrase.color = color.unwrap_or_else(random_color);
self.phrases.push(Arc::new(RwLock::new(phrase)));
self.phrase = self.phrases.len() - 1;
}
pub fn insert_new (&mut self, name: Option<&str>, color: Option<Color>) {
let mut phrase = Phrase::default();
phrase.name = String::from(name.unwrap_or("(no name)"));
phrase.color = color.unwrap_or_else(random_color);
self.phrases.insert(self.phrase + 1, Arc::new(RwLock::new(phrase)));
self.phrase += 1;
}
pub fn insert_dup (&mut self) {
let mut phrase = self.phrases[self.phrase].read().unwrap().duplicate();
phrase.color = random_color_near(phrase.color, 0.2);
self.phrases.insert(self.phrase + 1, Arc::new(RwLock::new(phrase)));
self.phrase += 1;
}
pub fn randomize_color (&mut self) {
let mut phrase = self.phrases[self.phrase].write().unwrap();
phrase.color = random_color();
}
pub fn begin_rename (&mut self) {
let phrase = self.phrases[self.phrase].read().unwrap();
self.mode = Some(PhrasePoolMode::Rename(self.phrase, phrase.name.clone()));
}
}
impl<E: Engine> PhraseEditor<E> {
pub fn new () -> Self {
@ -218,33 +261,6 @@ impl Phrase {
}
return false
}
/// Write a chunk of MIDI events to an output port.
pub fn process_out (
&self,
output: &mut PhraseChunk,
notes_on: &mut [bool;128],
timebase: &Arc<Timebase>,
(frame0, frames, _): (usize, usize, f64),
) {
let mut buf = Vec::with_capacity(8);
for (time, tick) in Ticks(timebase.pulse_per_frame()).between_frames(
frame0, frame0 + frames
) {
let tick = tick % self.length;
for message in self.notes[tick].iter() {
buf.clear();
let channel = 0.into();
let message = *message;
LiveEvent::Midi { channel, message }.write(&mut buf).unwrap();
output[time as usize].push(buf.clone());
match message {
MidiMessage::NoteOn { key, .. } => notes_on[key.as_int() as usize] = true,
MidiMessage::NoteOff { key, .. } => notes_on[key.as_int() as usize] = false,
_ => {}
}
}
}
}
}
impl Default for Phrase {
fn default () -> Self { Self::new("(empty)", false, 0, None, Some(Color::Rgb(0, 0, 0))) }
@ -280,130 +296,4 @@ impl<E: Engine> PhrasePlayer<E> {
pub fn toggle_overdub (&mut self) {
self.overdub = !self.overdub;
}
pub fn process (
&mut self,
input: Option<MidiIter>,
timebase: &Arc<Timebase>,
playing: Option<TransportState>,
started: Option<(usize, usize)>,
quant: usize,
reset: bool,
scope: &ProcessScope,
(frame0, frames): (usize, usize),
(_usec0, _usecs): (usize, usize),
period: f64,
) {
if self.midi_out.is_some() {
// Clear the section of the output buffer that we will be using
for frame in &mut self.midi_out_buf[0..frames] {
frame.clear();
}
// Emit "all notes off" at start of buffer if requested
if self.reset {
all_notes_off(&mut self.midi_out_buf);
self.reset = false;
} else if reset {
all_notes_off(&mut self.midi_out_buf);
}
}
if let (
Some(TransportState::Rolling),
Some((start_frame, _)),
Some(ref phrase)
) = (playing, started, &self.phrase) {
phrase.read().map(|phrase|{
if self.midi_out.is_some() {
phrase.process_out(
&mut self.midi_out_buf,
&mut self.notes_out.write().unwrap(),
timebase,
(frame0.saturating_sub(start_frame), frames, period)
);
}
}).unwrap();
let mut phrase = phrase.write().unwrap();
let length = phrase.length;
// Monitor and record input
if input.is_some() && (self.recording || self.monitoring) {
// For highlighting keys and note repeat
let mut notes_in = self.notes_in.write().unwrap();
for (frame, event, bytes) in parse_midi_input(input.unwrap()) {
match event {
LiveEvent::Midi { message, .. } => {
if self.monitoring {
self.midi_out_buf[frame].push(bytes.to_vec())
}
if self.recording {
phrase.record_event({
let pulse = timebase.frame_to_pulse(
(frame0 + frame - start_frame) as f64
);
let quantized = (
pulse / quant as f64
).round() as usize * quant;
let looped = quantized % length;
looped
}, message);
}
match message {
MidiMessage::NoteOn { key, .. } => {
notes_in[key.as_int() as usize] = true;
}
MidiMessage::NoteOff { key, .. } => {
notes_in[key.as_int() as usize] = false;
},
_ => {}
}
},
_ => {}
}
}
}
} else if input.is_some() && self.midi_out.is_some() && self.monitoring {
let mut notes_in = self.notes_in.write().unwrap();
for (frame, event, bytes) in parse_midi_input(input.unwrap()) {
match event {
LiveEvent::Midi { message, .. } => {
self.midi_out_buf[frame].push(bytes.to_vec());
match message {
MidiMessage::NoteOn { key, .. } => {
notes_in[key.as_int() as usize] = true;
}
MidiMessage::NoteOff { key, .. } => {
notes_in[key.as_int() as usize] = false;
},
_ => {}
}
},
_ => {}
}
}
}
if let Some(out) = &mut self.midi_out {
let writer = &mut out.writer(scope);
let output = &self.midi_out_buf;
for time in 0..frames {
for event in output[time].iter() {
writer.write(&RawMidi { time: time as u32, bytes: &event })
.expect(&format!("{event:?}"));
}
}
}
}
}
/// Add "all notes off" to the start of a buffer.
pub fn all_notes_off (output: &mut PhraseChunk) {
let mut buf = vec![];
let msg = MidiMessage::Controller { controller: 123.into(), value: 0.into() };
let evt = LiveEvent::Midi { channel: 0.into(), message: msg };
evt.write(&mut buf).unwrap();
output[0].push(buf);
}
/// Return boxed iterator of MIDI events
pub fn parse_midi_input (input: MidiIter) -> Box<dyn Iterator<Item=(usize, LiveEvent, &[u8])> + '_> {
Box::new(input.map(|RawMidi { time, bytes }|(
time as usize,
LiveEvent::parse(bytes).unwrap(),
bytes
)))
}

View file

@ -1,5 +1,5 @@
use crate::*;
/// Handle top-level events in standalone arranger.
/// Handle top-level events in standalone sequencer.
impl Handle<Tui> for Sequencer<Tui> {
fn handle (&mut self, from: &TuiInput) -> Perhaps<bool> {
if !match self.focused() {
@ -44,42 +44,13 @@ impl Handle<Tui> for PhrasePool<Tui> {
}
},
None => match from.event() {
key!(KeyCode::Up) => self.phrase = if self.phrase > 0 {
self.phrase - 1
} else {
self.phrases.len() - 1
},
key!(KeyCode::Down) => {
self.phrase = (self.phrase + 1) % self.phrases.len()
},
key!(KeyCode::Char('a')) => { // append new
let mut phrase = Phrase::default();
phrase.name = String::from("(no name)");
phrase.color = random_color();
self.phrases.push(Arc::new(RwLock::new(phrase)));
self.phrase = self.phrases.len() - 1;
},
key!(KeyCode::Char('i')) => { // insert new
let mut phrase = Phrase::default();
phrase.name = String::from("(no name)");
phrase.color = random_color();
self.phrases.insert(self.phrase + 1, Arc::new(RwLock::new(phrase)));
self.phrase += 1;
},
key!(KeyCode::Char('d')) => { // insert duplicate
let mut phrase = self.phrases[self.phrase].read().unwrap().duplicate();
phrase.color = random_color_near(phrase.color, 0.2);
self.phrases.insert(self.phrase + 1, Arc::new(RwLock::new(phrase)));
self.phrase += 1;
},
key!(KeyCode::Char('c')) => { // change color
let mut phrase = self.phrases[self.phrase].write().unwrap();
phrase.color = random_color();
},
key!(KeyCode::Char('n')) => { // change name
let phrase = self.phrases[self.phrase].read().unwrap();
self.mode = Some(PhrasePoolMode::Rename(self.phrase, phrase.name.clone()));
},
key!(KeyCode::Up) => { self.select_prev() },
key!(KeyCode::Down) => { self.select_next() },
key!(KeyCode::Char('a')) => { self.append_new(None, None) },
key!(KeyCode::Char('i')) => { self.insert_new(None, None) },
key!(KeyCode::Char('d')) => { self.insert_dup() },
key!(KeyCode::Char('c')) => { self.randomize_color() },
key!(KeyCode::Char('n')) => { self.begin_rename() },
_ => return Ok(None),
}
}

View file

@ -0,0 +1,158 @@
use crate::*;
impl Phrase {
/// Write a chunk of MIDI events to an output port.
pub fn process_out (
&self,
output: &mut PhraseChunk,
notes_on: &mut [bool;128],
timebase: &Arc<Timebase>,
(frame0, frames, _): (usize, usize, f64),
) {
let mut buf = Vec::with_capacity(8);
for (time, tick) in Ticks(timebase.pulse_per_frame()).between_frames(
frame0, frame0 + frames
) {
let tick = tick % self.length;
for message in self.notes[tick].iter() {
buf.clear();
let channel = 0.into();
let message = *message;
LiveEvent::Midi { channel, message }.write(&mut buf).unwrap();
output[time as usize].push(buf.clone());
match message {
MidiMessage::NoteOn { key, .. } => notes_on[key.as_int() as usize] = true,
MidiMessage::NoteOff { key, .. } => notes_on[key.as_int() as usize] = false,
_ => {}
}
}
}
}
}
impl<E: Engine> PhrasePlayer<E> {
pub fn process (
&mut self,
input: Option<MidiIter>,
timebase: &Arc<Timebase>,
playing: Option<TransportState>,
started: Option<(usize, usize)>,
quant: usize,
reset: bool,
scope: &ProcessScope,
(frame0, frames): (usize, usize),
(_usec0, _usecs): (usize, usize),
period: f64,
) {
if self.midi_out.is_some() {
// Clear the section of the output buffer that we will be using
for frame in &mut self.midi_out_buf[0..frames] {
frame.clear();
}
// Emit "all notes off" at start of buffer if requested
if self.reset {
all_notes_off(&mut self.midi_out_buf);
self.reset = false;
} else if reset {
all_notes_off(&mut self.midi_out_buf);
}
}
if let (
Some(TransportState::Rolling),
Some((start_frame, _)),
Some(ref phrase)
) = (playing, started, &self.phrase) {
phrase.read().map(|phrase|{
if self.midi_out.is_some() {
phrase.process_out(
&mut self.midi_out_buf,
&mut self.notes_out.write().unwrap(),
timebase,
(frame0.saturating_sub(start_frame), frames, period)
);
}
}).unwrap();
let mut phrase = phrase.write().unwrap();
let length = phrase.length;
// Monitor and record input
if input.is_some() && (self.recording || self.monitoring) {
// For highlighting keys and note repeat
let mut notes_in = self.notes_in.write().unwrap();
for (frame, event, bytes) in parse_midi_input(input.unwrap()) {
match event {
LiveEvent::Midi { message, .. } => {
if self.monitoring {
self.midi_out_buf[frame].push(bytes.to_vec())
}
if self.recording {
phrase.record_event({
let pulse = timebase.frame_to_pulse(
(frame0 + frame - start_frame) as f64
);
let quantized = (
pulse / quant as f64
).round() as usize * quant;
let looped = quantized % length;
looped
}, message);
}
match message {
MidiMessage::NoteOn { key, .. } => {
notes_in[key.as_int() as usize] = true;
}
MidiMessage::NoteOff { key, .. } => {
notes_in[key.as_int() as usize] = false;
},
_ => {}
}
},
_ => {}
}
}
}
} else if input.is_some() && self.midi_out.is_some() && self.monitoring {
let mut notes_in = self.notes_in.write().unwrap();
for (frame, event, bytes) in parse_midi_input(input.unwrap()) {
match event {
LiveEvent::Midi { message, .. } => {
self.midi_out_buf[frame].push(bytes.to_vec());
match message {
MidiMessage::NoteOn { key, .. } => {
notes_in[key.as_int() as usize] = true;
}
MidiMessage::NoteOff { key, .. } => {
notes_in[key.as_int() as usize] = false;
},
_ => {}
}
},
_ => {}
}
}
}
if let Some(out) = &mut self.midi_out {
let writer = &mut out.writer(scope);
let output = &self.midi_out_buf;
for time in 0..frames {
for event in output[time].iter() {
writer.write(&RawMidi { time: time as u32, bytes: &event })
.expect(&format!("{event:?}"));
}
}
}
}
}
/// Add "all notes off" to the start of a buffer.
pub fn all_notes_off (output: &mut PhraseChunk) {
let mut buf = vec![];
let msg = MidiMessage::Controller { controller: 123.into(), value: 0.into() };
let evt = LiveEvent::Midi { channel: 0.into(), message: msg };
evt.write(&mut buf).unwrap();
output[0].push(buf);
}
/// Return boxed iterator of MIDI events
pub fn parse_midi_input (input: MidiIter) -> Box<dyn Iterator<Item=(usize, LiveEvent, &[u8])> + '_> {
Box::new(input.map(|RawMidi { time, bytes }|(
time as usize,
LiveEvent::parse(bytes).unwrap(),
bytes
)))
}