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wip: AudioEngine pt.2 (rewrite activation sanely)

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🪞👃🪞 2024-11-03 04:43:50 +02:00
parent 2303b258f6
commit 746e29aeb3
8 changed files with 104 additions and 106 deletions
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65
crates/tek_core/src/audio.rs
View file

@ -1,22 +1,5 @@
use crate::*;
use jack::*;
/// Just run thing with JACK. Returns the activated client.
pub fn jack_run<T, E: Engine>(name: &str, app: &Arc<RwLock<T>>) -> Usually<DynamicAsyncClient>
where
T: Handle<E> + Audio + Send + Sync + 'static,
{
let options = ClientOptions::NO_START_SERVER;
let (client, _status) = Client::new(name, options)?;
let on_event = Notifications(Box::new({
let _app = app.clone();
move|_event|{/* FIXME: this deadlocks: app.lock().unwrap().handle(&event).unwrap(); */}
}) as Box<dyn Fn(JackEvent) + Send + Sync>);
let on_chunk = contrib::ClosureProcessHandler::new(Box::new({
let app = app.clone();
move|c: &Client, s: &ProcessScope|app.write().unwrap().process(c, s)
}) as BoxedAudioHandler);
Ok(client.activate_async(on_event, on_chunk)?)
}
/// Trait for things that wrap a JACK client.
pub trait AudioEngine {
fn activate(
@ -36,10 +19,46 @@ pub trait AudioEngine {
}
/// Wraps [Client] or [DynamicAsyncClient] in place.
pub enum JackClient {
/// Before activation.
Inactive(Client),
/// During activation.
Activating,
/// After activation. Must not be dropped for JACK thread to persist.
Active(DynamicAsyncClient),
}
pub type DynamicAsyncClient = AsyncClient<DynamicNotifications, DynamicAudioHandler>;
pub type DynamicAudioHandler = contrib::ClosureProcessHandler<(), BoxedAudioHandler>;
pub type BoxedAudioHandler = Box<dyn FnMut(&Client, &ProcessScope) -> Control + Send>;
impl JackClient {
pub fn new (name: &str) -> Usually<Self> {
let (client, _) = Client::new(name, ClientOptions::NO_START_SERVER)?;
Ok(Self::Inactive(client))
}
pub fn activate_with <T: Audio + 'static> (
self,
init: impl FnOnce(&Arc<RwLock<JackClient>>)->T
)
-> Usually<Arc<RwLock<T>>>
{
let client = Arc::new(RwLock::new(self));
let target = Arc::new(RwLock::new(init(&client)));
let event = Box::new(move|_|{/*TODO*/}) as Box<dyn Fn(JackEvent) + Send + Sync>;
let events = Notifications(event);
let frame = Box::new({
let target = target.clone();
move|c: &_, s: &_|if let Ok(mut target) = target.write() {
target.process(c, s)
} else {
Control::Quit
}
});
let frames = contrib::ClosureProcessHandler::new(frame as BoxedAudioHandler);
let mut buffer = Self::Activating;
std::mem::swap(&mut*client.write().unwrap(), &mut buffer);
*client.write().unwrap() = Self::Active(Client::from(buffer).activate_async(events, frames)?);
Ok(target)
}
}
impl From<JackClient> for Client {
fn from (jack: JackClient) -> Client {
match jack {
@ -59,7 +78,7 @@ impl AudioEngine for JackClient {
}
fn activate(
self,
mut process: impl FnMut(&Arc<RwLock<Self>>, &Client, &ProcessScope) -> Control + Send + 'static,
mut cb: impl FnMut(&Arc<RwLock<Self>>, &Client, &ProcessScope) -> Control + Send + 'static,
) -> Usually<Arc<RwLock<Self>>>
where
Self: Send + Sync + 'static
@ -68,14 +87,14 @@ impl AudioEngine for JackClient {
let state = Arc::new(RwLock::new(Self::Activating));
let event = Box::new(move|_|{/*TODO*/}) as Box<dyn Fn(JackEvent) + Send + Sync>;
let events = Notifications(event);
let frame = Box::new({let state = state.clone(); move|c: &_, s: &_|process(&state, c, s)});
let frame = Box::new({let state = state.clone(); move|c: &_, s: &_|cb(&state, c, s)});
let frames = contrib::ClosureProcessHandler::new(frame as BoxedAudioHandler);
*state.write().unwrap() = Self::Active(client.activate_async(events, frames)?);
Ok(state)
}
}
/// Trait for things that have a JACK process callback.
pub trait Audio {
pub trait Audio: Send + Sync {
fn process(&mut self, _: &Client, _: &ProcessScope) -> Control {
Control::Continue
}
@ -120,12 +139,6 @@ pub trait AudioComponent<E: Engine>: Component<E> + Audio {
/// All things that implement the required traits can be treated as `AudioComponent`.
impl<E: Engine, W: Component<E> + Audio> AudioComponent<E> for W {}
pub type DynamicAsyncClient = AsyncClient<DynamicNotifications, DynamicAudioHandler>;
pub type DynamicAudioHandler = contrib::ClosureProcessHandler<(), BoxedAudioHandler>;
pub type BoxedAudioHandler = Box<dyn FnMut(&Client, &ProcessScope) -> Control + Send>;
/// `JackDevice` factory. Creates JACK `Client`s, performs port registration
/// and activation, and encapsulates a `AudioComponent` into a `JackDevice`.
pub struct Jack {

2
crates/tek_mixer/src/plugin.rs
View file

@ -42,7 +42,7 @@ impl Plugin<Tui> {
}
}
impl<E> Audio for Plugin<E> {
impl<E: Send + Sync> Audio for Plugin<E> {
fn process (&mut self, _: &Client, scope: &ProcessScope) -> Control {
match self.plugin.as_mut() {
Some(PluginKind::LV2(LV2Plugin {

21
crates/tek_sequencer/src/arranger.rs
View file

@ -3,7 +3,7 @@ use crate::*;
/// Root level object for standalone `tek_arranger`
pub struct Arranger<E: Engine> {
/// JACK client handle (needs to not be dropped for standalone mode to work).
pub jack: Option<Arc<JackClient>>,
pub jack: Arc<RwLock<JackClient>>,
/// Which view is focused
pub focus_cursor: (usize, usize),
/// Controls the JACK transport.
@ -51,7 +51,7 @@ pub enum ArrangerStatusBar {
/// Represents the tracks and scenes of the composition.
pub struct Arrangement<E: Engine> {
/// Global JACK client
pub jack: Arc<JackClient>,
pub jack: Arc<RwLock<JackClient>>,
/// Global timebase
pub clock: Arc<TransportTime>,
/// Name of arranger
@ -120,26 +120,27 @@ pub struct HorizontalArranger<'a, E: Engine>(pub &'a Arrangement<E>);
/// General methods for arranger
impl<E: Engine> Arranger<E> {
pub fn new (
jack: &Arc<RwLock<JackClient>>,
transport: Option<Arc<RwLock<TransportToolbar<E>>>>,
arrangement: Arrangement<E>,
phrases: Arc<RwLock<PhrasePool<E>>>,
) -> Self {
let mut app = Self {
jack: None,
jack: jack.clone(),
focus_cursor: (0, 1),
phrases_split: 20,
arrangement_split: 21,
editor: PhraseEditor::new(),
status: ArrangerStatusBar::ArrangementClip,
transport: transport.clone(),
arrangement,
phrases,
size: Measure::new(),
clock: if let Some(ref transport) = transport {
transport.read().unwrap().clock.clone()
} else {
Arc::new(TransportTime::default())
},
transport,
arrangement,
phrases,
size: Measure::new(),
};
app.update_focus();
app
@ -226,7 +227,7 @@ impl<E: Engine> FocusGrid<ArrangerFocus> for Arranger<E> {
/// General methods for arrangement
impl<E: Engine> Arrangement<E> {
pub fn new (
jack: &Arc<JackClient>,
jack: &Arc<RwLock<JackClient>>,
clock: &Arc<TransportTime>,
name: &str,
phrases: &Arc<RwLock<PhrasePool<E>>>
@ -537,7 +538,7 @@ impl<E: Engine> Arrangement<E> {
}
impl ArrangementTrack {
pub fn new (
jack: &Arc<JackClient>,
jack: &Arc<RwLock<JackClient>>,
clock: &Arc<TransportTime>,
name: &str,
color: Option<ItemColor>
@ -546,7 +547,7 @@ impl ArrangementTrack {
name: Arc::new(RwLock::new(name.into())),
width: name.len() + 2,
color: color.unwrap_or_else(ItemColor::random),
player: PhrasePlayer::new(jack, clock),
player: PhrasePlayer::new(&jack, clock),
}
}
pub fn longest_name (tracks: &[Self]) -> usize {

4
crates/tek_sequencer/src/sequencer.rs
View file

@ -9,7 +9,7 @@ pub type PhraseChunk = [Vec<PhraseMessage>];
/// Root level object for standalone `tek_sequencer`
pub struct Sequencer<E: Engine> {
/// JACK client handle (needs to not be dropped for standalone mode to work).
pub jack: Option<Arc<JackClient>>,
pub jack: Arc<RwLock<JackClient>>,
/// Which view is focused
pub focus_cursor: (usize, usize),
/// Controls the JACK transport.
@ -392,7 +392,7 @@ impl PartialEq for Phrase { fn eq (&self, other: &Self) -> bool { self.uuid == o
impl Eq for Phrase {}
impl PhrasePlayer {
pub fn new (
jack: &Arc<JackClient>,
jack: &Arc<RwLock<JackClient>>,
clock: &Arc<TransportTime>
) -> Self {
Self {

28
crates/tek_sequencer/src/sequencer_cli.rs
View file

@ -18,18 +18,17 @@ pub struct SequencerCli {
impl SequencerCli {
fn run (&self) -> Usually<()> {
let jack = Client::new("tek_arranger", ClientOptions::NO_START_SERVER)?.0;
let jack = JackClient::Inactive(jack);
let transport = Arc::new(RwLock::new(TransportToolbar::new(None, Some(jack.transport()))));
let clock = transport.read().unwrap().clock.clone();
let name = self.name.map(|name|name.as_str()).unwrap_or("tek_arranger");
Tui::run(JackClient::new(name)?.activate_with(|jack|{
let mut transport = TransportToolbar::new(jack, None);
let sequencer = Sequencer {
jack: None,
player: None,
jack: jack.clone(),
focus_cursor: (1, 1),
phrases: Arc::new(RwLock::new(PhrasePool::new())),
editor: PhraseEditor::new(),
transport: self.transport.then_some(transport),
clock,
clock: transport.clock.clone(),
player: Some(PhrasePlayer::new(jack, &transport.clock)),
transport: self.transport.then_some(Arc::new(RwLock::new(transport))),
};
if let Some(_) = self.name.as_ref() {
// TODO: sequencer.name = Arc::new(RwLock::new(name.clone()));
@ -42,15 +41,8 @@ impl SequencerCli {
//phrase.write().unwrap().length = length;
//}
}
let sequencer = Arc::new(RwLock::new(sequencer));
let jack = jack.activate(&sequencer.clone(), Sequencer::callback)?;
let jack = Arc::new(jack);
let player = PhrasePlayer::new(&jack, &clock);
if let Some(ref transport) = sequencer.read().unwrap().transport {
transport.write().unwrap().jack = Some(jack.clone());
}
sequencer.write().unwrap().jack = Some(jack.clone());
sequencer.write().unwrap().player = player;
Tui::run(sequencer).map(|_|())
sequencer
}))?;
Ok(())
}
}

24
crates/tek_sequencer/src/transport.rs
View file

@ -26,14 +26,14 @@ impl TransportTime {
/// Stores and displays time-related state.
pub struct TransportToolbar<E: Engine> {
_engine: PhantomData<E>,
/// JACK client handle (needs to not be dropped for standalone mode to work).
pub jack: Arc<RwLock<JackClient>>,
/// JACK transport handle.
pub transport: Transport,
/// Current sample rate, tempo, and PPQ.
pub clock: Arc<TransportTime>,
/// Enable metronome?
pub metronome: bool,
/// JACK client handle (needs to not be dropped for standalone mode to work).
pub jack: Option<Arc<JackClient>>,
/// JACK transport handle.
pub transport: Option<Transport>,
/// Whether the toolbar is focused
pub focused: bool,
/// Which part of the toolbar is focused
@ -43,17 +43,14 @@ pub struct TransportToolbar<E: Engine> {
#[derive(Clone, Copy, PartialEq)]
pub enum TransportToolbarFocus { Bpm, Sync, PlayPause, Clock, Quant, }
impl<E: Engine> TransportToolbar<E> {
pub fn new (
clock: Option<&Arc<TransportTime>>,
transport: Option<Transport>,
) -> Self {
pub fn new (jack: &Arc<RwLock<JackClient>>, clock: Option<&Arc<TransportTime>>) -> Self {
Self {
_engine: Default::default(),
focused: false,
focus: TransportToolbarFocus::PlayPause,
metronome: false,
jack: None,
transport,
transport: jack.read().unwrap().transport(),
jack: jack.clone(),
clock: match clock {
Some(clock) => clock.clone(),
None => {
@ -70,16 +67,15 @@ impl<E: Engine> TransportToolbar<E> {
}
}
pub fn toggle_play (&mut self) -> Usually<()> {
let transport = self.transport.as_ref().unwrap();
let playing = self.clock.playing.read().unwrap().expect("1st sample has not been processed yet");
let playing = match playing {
TransportState::Stopped => {
transport.start()?;
self.transport.start()?;
Some(TransportState::Starting)
},
_ => {
transport.stop()?;
transport.locate(0)?;
self.transport.stop()?;
self.transport.locate(0)?;
Some(TransportState::Stopped)
},
};

12
crates/tek_sequencer/src/transport_cli.rs
View file

@ -1,14 +1,10 @@
include!("lib.rs");
/// Application entrypoint.
pub fn main () -> Usually<()> {
let jack = JackClient::Inactive(
Client::new("tek_transport", ClientOptions::NO_START_SERVER)?.0
);
let mut transport = TransportToolbar::new(None, Some(jack.transport()));
Tui::run(JackClient::new("tek_transport")?.activate_with(|jack|{
let mut transport = TransportToolbar::new(jack, None);
transport.focused = true;
let transport = Arc::new(RwLock::new(transport));
let jack = jack.activate(&transport.clone(), TransportToolbar::callback)?;
transport.write().unwrap().jack = Some(jack.into());
Tui::run(transport)?;
transport
}))?;
Ok(())
}

2
crates/tek_sequencer/src/transport_snd.rs
View file

@ -4,7 +4,7 @@ impl<E: Engine> Audio for TransportToolbar<E> {
let times = scope.cycle_times().unwrap();
let CycleTimes { current_frames, current_usecs, next_usecs: _, period_usecs: _ } = times;
let _chunk_size = scope.n_frames() as usize;
let transport = self.transport.as_ref().unwrap().query().unwrap();
let transport = self.transport.query().unwrap();
self.clock.current.sample.set(transport.pos.frame() as f64);
let mut playing = self.clock.playing.write().unwrap();
let mut started = self.clock.started.write().unwrap();