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wip: refactor pt.4, reduce number of files

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🪞👃🪞 2024-11-10 01:03:47 +01:00
parent adf5b3f0f8
commit 8c37c95cc6
60 changed files with 2185 additions and 2187 deletions
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0
crates/tek_api/src/api.rs Normal file
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77
crates/tek_api/src/api_cmd.rs
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@ -1,68 +1,5 @@
use crate::*;
#[derive(Clone)]
pub enum ArrangerCommand {
Focus(FocusCommand),
Transport(TransportCommand),
Phrases(PhrasePoolCommand),
Editor(PhraseEditorCommand),
Arrangement(ArrangementCommand),
EditPhrase(Option<Arc<RwLock<Phrase>>>),
}
#[derive(Clone)]
pub enum ArrangementCommand {
New,
Load,
Save,
ToggleViewMode,
Delete,
Activate,
Increment,
Decrement,
ZoomIn,
ZoomOut,
Go(Direction),
Edit(Option<Arc<RwLock<Phrase>>>),
Scene(SceneCommand),
Track(TrackCommand),
Clip(ClipCommand),
}
#[derive(Clone)]
pub enum SceneCommand {
Next,
Prev,
Add,
Delete,
MoveForward,
MoveBack,
RandomColor,
SetSize(usize),
SetZoom(usize),
}
#[derive(Clone)]
pub enum TrackCommand {
Next,
Prev,
Add,
Delete,
MoveForward,
MoveBack,
RandomColor,
SetSize(usize),
SetZoom(usize),
}
#[derive(Clone)]
pub enum ClipCommand {
SetLoop(bool),
Get(usize, usize),
Put(usize, usize, Option<Arc<RwLock<Phrase>>>),
Edit(Option<Arc<RwLock<Phrase>>>),
}
#[derive(Clone, PartialEq)]
pub enum SequencerCommand {
Focus(FocusCommand),
@ -127,17 +64,3 @@ pub enum PhraseEditorCommand {
TimeZoomSet(usize),
Go(Direction),
}
#[derive(Copy, Clone, PartialEq)]
pub enum TransportCommand {
FocusNext,
FocusPrev,
Play(Option<usize>),
Pause(Option<usize>),
SeekUsec(f64),
SeekSample(f64),
SeekPulse(f64),
SetBpm(f64),
SetQuant(f64),
SetSync(f64),
}

197
crates/tek_api/src/api_edn.rs
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@ -1,197 +0,0 @@
use crate::*;
use crate::midly::num::u7;
impl Scene {
pub fn from_edn <'a, 'e> (args: &[Edn<'e>]) -> Usually<Self> {
let mut name = None;
let mut clips = vec![];
edn!(edn in args {
Edn::Map(map) => {
let key = map.get(&Edn::Key(":name"));
if let Some(Edn::Str(n)) = key {
name = Some(*n);
} else {
panic!("unexpected key in scene '{name:?}': {key:?}")
}
},
Edn::Symbol("_") => {
clips.push(None);
},
Edn::Int(i) => {
clips.push(Some(*i as usize));
},
_ => panic!("unexpected in scene '{name:?}': {edn:?}")
});
Ok(Scene {
name: Arc::new(name.unwrap_or("").to_string().into()),
color: ItemColor::random(),
clips,
})
}
}
impl MixerTrack {
const SYM_NAME: &'static str = ":name";
const SYM_GAIN: &'static str = ":gain";
const SYM_SAMPLER: &'static str = "sampler";
const SYM_LV2: &'static str = "lv2";
pub fn from_edn <'a, 'e> (jack: &Arc<RwLock<JackClient>>, args: &[Edn<'e>]) -> Usually<Self> {
let mut _gain = 0.0f64;
let mut track = MixerTrack {
name: String::new(),
ports: JackPorts::default(),
devices: vec![],
};
#[allow(unused_mut)]
let mut devices: Vec<JackClient> = vec![];
edn!(edn in args {
Edn::Map(map) => {
if let Some(Edn::Str(n)) = map.get(&Edn::Key(Self::SYM_NAME)) {
track.name = n.to_string();
}
if let Some(Edn::Double(g)) = map.get(&Edn::Key(Self::SYM_GAIN)) {
_gain = f64::from(*g);
}
},
Edn::List(args) => match args.get(0) {
// Add a sampler device to the track
Some(Edn::Symbol(Self::SYM_SAMPLER)) => {
devices.push(Sampler::from_edn(jack, &args[1..])?);
panic!(
"unsupported in track {}: {:?}; tek_mixer not compiled with feature \"sampler\"",
&track.name,
args.get(0).unwrap()
)
},
// Add a LV2 plugin to the track.
Some(Edn::Symbol(Self::SYM_LV2)) => {
devices.push(LV2Plugin::from_edn(jack, &args[1..])?);
panic!(
"unsupported in track {}: {:?}; tek_mixer not compiled with feature \"plugin\"",
&track.name,
args.get(0).unwrap()
)
},
None =>
panic!("empty list track {}", &track.name),
_ =>
panic!("unexpected in track {}: {:?}", &track.name, args.get(0).unwrap())
},
_ => {}
});
for device in devices {
track.add_device(device);
}
Ok(track)
}
}
impl LV2Plugin {
pub fn from_edn <'e> (jack: &Arc<RwLock<JackClient>>, args: &[Edn<'e>]) -> Usually<JackClient> {
let mut name = String::new();
let mut path = String::new();
edn!(edn in args {
Edn::Map(map) => {
if let Some(Edn::Str(n)) = map.get(&Edn::Key(":name")) {
name = String::from(*n);
}
if let Some(Edn::Str(p)) = map.get(&Edn::Key(":path")) {
path = String::from(*p);
}
},
_ => panic!("unexpected in lv2 '{name}'"),
});
Plugin::new_lv2(jack, &name, &path)
}
}
impl Sampler {
pub fn from_edn <'e> (jack: &Arc<RwLock<JackClient>>, args: &[Edn<'e>]) -> Usually<Sampler> {
let mut name = String::new();
let mut dir = String::new();
let mut samples = BTreeMap::new();
edn!(edn in args {
Edn::Map(map) => {
if let Some(Edn::Str(n)) = map.get(&Edn::Key(":name")) {
name = String::from(*n);
}
if let Some(Edn::Str(n)) = map.get(&Edn::Key(":dir")) {
dir = String::from(*n);
}
},
Edn::List(args) => match args.get(0) {
Some(Edn::Symbol("sample")) => {
let (midi, sample) = Sample::from_edn(jack, &dir, &args[1..])?;
if let Some(midi) = midi {
samples.insert(midi, sample);
} else {
panic!("sample without midi binding: {}", sample.read().unwrap().name);
}
},
_ => panic!("unexpected in sampler {name}: {args:?}")
},
_ => panic!("unexpected in sampler {name}: {edn:?}")
});
Ok(Sampler {
jack: jack.clone(),
name: name.into(),
mapped: samples,
unmapped: Default::default(),
voices: Default::default(),
ports: Default::default(),
buffer: Default::default(),
output_gain: 0.
})
}
}
impl Sample {
pub fn from_edn <'e> (jack: &Arc<RwLock<JackClient>>, dir: &str, args: &[Edn<'e>]) -> Usually<(Option<u7>, Arc<RwLock<Self>>)> {
let mut name = String::new();
let mut file = String::new();
let mut midi = None;
let mut start = 0usize;
edn!(edn in args {
Edn::Map(map) => {
if let Some(Edn::Str(n)) = map.get(&Edn::Key(":name")) {
name = String::from(*n);
}
if let Some(Edn::Str(f)) = map.get(&Edn::Key(":file")) {
file = String::from(*f);
}
if let Some(Edn::Int(i)) = map.get(&Edn::Key(":start")) {
start = *i as usize;
}
if let Some(Edn::Int(m)) = map.get(&Edn::Key(":midi")) {
midi = Some(u7::from(*m as u8));
}
},
_ => panic!("unexpected in sample {name}"),
});
let (end, data) = Sample::read_data(&format!("{dir}/{file}"))?;
Ok((midi, Arc::new(RwLock::new(Self {
name: name.into(),
start,
end,
channels: data,
rate: None
}))))
}
/// Read WAV from file
pub fn read_data (src: &str) -> Usually<(usize, Vec<Vec<f32>>)> {
let mut channels: Vec<wavers::Samples<f32>> = vec![];
for channel in wavers::Wav::from_path(src)?.channels() {
channels.push(channel);
}
let mut end = 0;
let mut data: Vec<Vec<f32>> = vec![];
for samples in channels.iter() {
let channel = Vec::from(samples.as_ref());
end = end.max(channel.len());
data.push(channel);
}
Ok((end, data))
}
}

519
crates/tek_api/src/api_jack.rs Normal file
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@ -0,0 +1,519 @@
use crate::*;
use tek_core::jack::*;
/// Trait for things that have a JACK process callback.
pub trait Audio: Send + Sync {
fn process(&mut self, _: &Client, _: &ProcessScope) -> Control {
Control::Continue
}
fn callback(
state: &Arc<RwLock<Self>>, client: &Client, scope: &ProcessScope
) -> Control where Self: Sized {
if let Ok(mut state) = state.write() {
state.process(client, scope)
} else {
Control::Quit
}
}
}
/// A UI component that may be associated with a JACK client by the `Jack` factory.
pub trait AudioComponent<E: Engine>: Component<E> + Audio {
/// Perform type erasure for collecting heterogeneous devices.
fn boxed(self) -> Box<dyn AudioComponent<E>>
where
Self: Sized + 'static,
{
Box::new(self)
}
}
/// All things that implement the required traits can be treated as `AudioComponent`.
impl<E: Engine, W: Component<E> + Audio> AudioComponent<E> for W {}
/// Trait for things that wrap a JACK client.
pub trait AudioEngine {
fn activate (
self,
process: impl FnMut(&Arc<RwLock<Self>>, &Client, &ProcessScope) -> Control + Send + 'static
) -> Usually<Arc<RwLock<Self>>> where Self: Send + Sync + 'static;
fn client (&self) -> &Client;
fn transport (&self) -> Transport {
self.client().transport()
}
fn port_by_name (&self, name: &str) -> Option<Port<Unowned>> {
self.client().port_by_name(name)
}
fn register_port <PS: PortSpec> (&self, name: &str, spec: PS) -> Usually<Port<PS>> {
Ok(self.client().register_port(name, spec)?)
}
fn thread_init (&self, _: &Client) {}
unsafe fn shutdown (&mut self, status: ClientStatus, reason: &str) {}
fn freewheel (&mut self, _: &Client, enabled: bool) {}
fn client_registration (&mut self, _: &Client, name: &str, reg: bool) {}
fn port_registration (&mut self, _: &Client, id: PortId, reg: bool) {}
fn ports_connected (&mut self, _: &Client, a: PortId, b: PortId, are: bool) {}
fn sample_rate (&mut self, _: &Client, frames: Frames) -> Control {
Control::Continue
}
fn port_rename (&mut self, _: &Client, id: PortId, old: &str, new: &str) -> Control {
Control::Continue
}
fn graph_reorder (&mut self, _: &Client) -> Control {
Control::Continue
}
fn xrun (&mut self, _: &Client) -> Control {
Control::Continue
}
}
/// Wraps [Client] or [DynamicAsyncClient] in place.
#[derive(Debug)]
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>>)->Usually<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 {
JackClient::Inactive(client) => client,
JackClient::Activating => panic!("jack client still activating"),
JackClient::Active(_) => panic!("jack client already activated"),
}
}
}
impl AudioEngine for JackClient {
fn client(&self) -> &Client {
match self {
Self::Inactive(ref client) => client,
Self::Activating => panic!("jack client has not finished activation"),
Self::Active(ref client) => client.as_client(),
}
}
fn activate(
self,
mut cb: impl FnMut(&Arc<RwLock<Self>>, &Client, &ProcessScope) -> Control + Send + 'static,
) -> Usually<Arc<RwLock<Self>>>
where
Self: Send + Sync + 'static
{
let client = Client::from(self);
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: &_|cb(&state, c, s)});
let frames = contrib::ClosureProcessHandler::new(frame as BoxedAudioHandler);
*state.write().unwrap() = Self::Active(client.activate_async(events, frames)?);
Ok(state)
}
}
#[derive(Debug)]
/// Event enum for JACK events.
pub enum JackEvent {
ThreadInit,
Shutdown(ClientStatus, String),
Freewheel(bool),
SampleRate(Frames),
ClientRegistration(String, bool),
PortRegistration(PortId, bool),
PortRename(PortId, String, String),
PortsConnected(PortId, PortId, bool),
GraphReorder,
XRun,
}
/// Trait for things that may expose JACK ports.
pub trait Ports {
fn audio_ins(&self) -> Usually<Vec<&Port<Unowned>>> {
Ok(vec![])
}
fn audio_outs(&self) -> Usually<Vec<&Port<Unowned>>> {
Ok(vec![])
}
fn midi_ins(&self) -> Usually<Vec<&Port<Unowned>>> {
Ok(vec![])
}
fn midi_outs(&self) -> Usually<Vec<&Port<Unowned>>> {
Ok(vec![])
}
}
fn register_ports<T: PortSpec + Copy>(
client: &Client,
names: Vec<String>,
spec: T,
) -> Usually<BTreeMap<String, Port<T>>> {
names
.into_iter()
.try_fold(BTreeMap::new(), |mut ports, name| {
let port = client.register_port(&name, spec)?;
ports.insert(name, port);
Ok(ports)
})
}
fn query_ports(client: &Client, names: Vec<String>) -> BTreeMap<String, Port<Unowned>> {
names.into_iter().fold(BTreeMap::new(), |mut ports, name| {
let port = client.port_by_name(&name).unwrap();
ports.insert(name, port);
ports
})
}
/// Notification handler used by the [Jack] factory
/// when constructing [JackDevice]s.
pub type DynamicNotifications = Notifications<Box<dyn Fn(JackEvent) + Send + Sync>>;
/// Generic notification handler that emits [JackEvent]
pub struct Notifications<T: Fn(JackEvent) + Send>(pub T);
impl<T: Fn(JackEvent) + Send> NotificationHandler for Notifications<T> {
fn thread_init(&self, _: &Client) {
self.0(JackEvent::ThreadInit);
}
unsafe fn shutdown(&mut self, status: ClientStatus, reason: &str) {
self.0(JackEvent::Shutdown(status, reason.into()));
}
fn freewheel(&mut self, _: &Client, enabled: bool) {
self.0(JackEvent::Freewheel(enabled));
}
fn sample_rate(&mut self, _: &Client, frames: Frames) -> Control {
self.0(JackEvent::SampleRate(frames));
Control::Quit
}
fn client_registration(&mut self, _: &Client, name: &str, reg: bool) {
self.0(JackEvent::ClientRegistration(name.into(), reg));
}
fn port_registration(&mut self, _: &Client, id: PortId, reg: bool) {
self.0(JackEvent::PortRegistration(id, reg));
}
fn port_rename(&mut self, _: &Client, id: PortId, old: &str, new: &str) -> Control {
self.0(JackEvent::PortRename(id, old.into(), new.into()));
Control::Continue
}
fn ports_connected(&mut self, _: &Client, a: PortId, b: PortId, are: bool) {
self.0(JackEvent::PortsConnected(a, b, are));
}
fn graph_reorder(&mut self, _: &Client) -> Control {
self.0(JackEvent::GraphReorder);
Control::Continue
}
fn xrun(&mut self, _: &Client) -> Control {
self.0(JackEvent::XRun);
Control::Continue
}
}
///// A [AudioComponent] bound to a JACK client and a set of ports.
//pub struct JackDevice<E: Engine> {
///// The active JACK client of this device.
//pub client: DynamicAsyncClient,
///// The device state, encapsulated for sharing between threads.
//pub state: Arc<RwLock<Box<dyn AudioComponent<E>>>>,
///// Unowned copies of the device's JACK ports, for connecting to the device.
///// The "real" readable/writable `Port`s are owned by the `state`.
//pub ports: UnownedJackPorts,
//}
//impl<E: Engine> std::fmt::Debug for JackDevice<E> {
//fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
//f.debug_struct("JackDevice")
//.field("ports", &self.ports)
//.finish()
//}
//}
//impl<E: Engine> Widget for JackDevice<E> {
//type Engine = E;
//fn layout(&self, to: E::Size) -> Perhaps<E::Size> {
//self.state.read().unwrap().layout(to)
//}
//fn render(&self, to: &mut E::Output) -> Usually<()> {
//self.state.read().unwrap().render(to)
//}
//}
//impl<E: Engine> Handle<E> for JackDevice<E> {
//fn handle(&mut self, from: &E::Input) -> Perhaps<E::Handled> {
//self.state.write().unwrap().handle(from)
//}
//}
//impl<E: Engine> Ports for JackDevice<E> {
//fn audio_ins(&self) -> Usually<Vec<&Port<Unowned>>> {
//Ok(self.ports.audio_ins.values().collect())
//}
//fn audio_outs(&self) -> Usually<Vec<&Port<Unowned>>> {
//Ok(self.ports.audio_outs.values().collect())
//}
//fn midi_ins(&self) -> Usually<Vec<&Port<Unowned>>> {
//Ok(self.ports.midi_ins.values().collect())
//}
//fn midi_outs(&self) -> Usually<Vec<&Port<Unowned>>> {
//Ok(self.ports.midi_outs.values().collect())
//}
//}
//impl<E: Engine> JackDevice<E> {
///// Returns a locked mutex of the state's contents.
//pub fn state(&self) -> LockResult<RwLockReadGuard<Box<dyn AudioComponent<E>>>> {
//self.state.read()
//}
///// Returns a locked mutex of the state's contents.
//pub fn state_mut(&self) -> LockResult<RwLockWriteGuard<Box<dyn AudioComponent<E>>>> {
//self.state.write()
//}
//pub fn connect_midi_in(&self, index: usize, port: &Port<Unowned>) -> Usually<()> {
//Ok(self
//.client
//.as_client()
//.connect_ports(port, self.midi_ins()?[index])?)
//}
//pub fn connect_midi_out(&self, index: usize, port: &Port<Unowned>) -> Usually<()> {
//Ok(self
//.client
//.as_client()
//.connect_ports(self.midi_outs()?[index], port)?)
//}
//pub fn connect_audio_in(&self, index: usize, port: &Port<Unowned>) -> Usually<()> {
//Ok(self
//.client
//.as_client()
//.connect_ports(port, self.audio_ins()?[index])?)
//}
//pub fn connect_audio_out(&self, index: usize, port: &Port<Unowned>) -> Usually<()> {
//Ok(self
//.client
//.as_client()
//.connect_ports(self.audio_outs()?[index], port)?)
//}
//}
///// Collection of JACK ports as [AudioIn]/[AudioOut]/[MidiIn]/[MidiOut].
//#[derive(Default, Debug)]
//pub struct JackPorts {
//pub audio_ins: BTreeMap<String, Port<AudioIn>>,
//pub midi_ins: BTreeMap<String, Port<MidiIn>>,
//pub audio_outs: BTreeMap<String, Port<AudioOut>>,
//pub midi_outs: BTreeMap<String, Port<MidiOut>>,
//}
///// Collection of JACK ports as [Unowned].
//#[derive(Default, Debug)]
//pub struct UnownedJackPorts {
//pub audio_ins: BTreeMap<String, Port<Unowned>>,
//pub midi_ins: BTreeMap<String, Port<Unowned>>,
//pub audio_outs: BTreeMap<String, Port<Unowned>>,
//pub midi_outs: BTreeMap<String, Port<Unowned>>,
//}
//impl JackPorts {
//pub fn clone_unowned(&self) -> UnownedJackPorts {
//let mut unowned = UnownedJackPorts::default();
//for (name, port) in self.midi_ins.iter() {
//unowned.midi_ins.insert(name.clone(), port.clone_unowned());
//}
//for (name, port) in self.midi_outs.iter() {
//unowned.midi_outs.insert(name.clone(), port.clone_unowned());
//}
//for (name, port) in self.audio_ins.iter() {
//unowned.audio_ins.insert(name.clone(), port.clone_unowned());
//}
//for (name, port) in self.audio_outs.iter() {
//unowned
//.audio_outs
//.insert(name.clone(), port.clone_unowned());
//}
//unowned
//}
//}
///// Implement the `Ports` trait.
//#[macro_export]
//macro_rules! ports {
//($T:ty $({ $(audio: {
//$(ins: |$ai_arg:ident|$ai_impl:expr,)?
//$(outs: |$ao_arg:ident|$ao_impl:expr,)?
//})? $(midi: {
//$(ins: |$mi_arg:ident|$mi_impl:expr,)?
//$(outs: |$mo_arg:ident|$mo_impl:expr,)?
//})?})?) => {
//impl Ports for $T {$(
//$(
//$(fn audio_ins <'a> (&'a self) -> Usually<Vec<&'a Port<Unowned>>> {
//let cb = |$ai_arg:&'a Self|$ai_impl;
//cb(self)
//})?
//)?
//$(
//$(fn audio_outs <'a> (&'a self) -> Usually<Vec<&'a Port<Unowned>>> {
//let cb = (|$ao_arg:&'a Self|$ao_impl);
//cb(self)
//})?
//)?
//)? $(
//$(
//$(fn midi_ins <'a> (&'a self) -> Usually<Vec<&'a Port<Unowned>>> {
//let cb = (|$mi_arg:&'a Self|$mi_impl);
//cb(self)
//})?
//)?
//$(
//$(fn midi_outs <'a> (&'a self) -> Usually<Vec<&'a Port<Unowned>>> {
//let cb = (|$mo_arg:&'a Self|$mo_impl);
//cb(self)
//})?
//)?
//)?}
//};
//}
///// `JackDevice` factory. Creates JACK `Client`s, performs port registration
///// and activation, and encapsulates a `AudioComponent` into a `JackDevice`.
//pub struct Jack {
//pub client: Client,
//pub midi_ins: Vec<String>,
//pub audio_ins: Vec<String>,
//pub midi_outs: Vec<String>,
//pub audio_outs: Vec<String>,
//}
//impl Jack {
//pub fn new(name: &str) -> Usually<Self> {
//Ok(Self {
//midi_ins: vec![],
//audio_ins: vec![],
//midi_outs: vec![],
//audio_outs: vec![],
//client: Client::new(name, ClientOptions::NO_START_SERVER)?.0,
//})
//}
//pub fn run<'a: 'static, D, E>(
//self,
//state: impl FnOnce(JackPorts) -> Box<D>,
//) -> Usually<JackDevice<E>>
//where
//D: AudioComponent<E> + Sized + 'static,
//E: Engine + 'static,
//{
//let owned_ports = JackPorts {
//audio_ins: register_ports(&self.client, self.audio_ins, AudioIn::default())?,
//audio_outs: register_ports(&self.client, self.audio_outs, AudioOut::default())?,
//midi_ins: register_ports(&self.client, self.midi_ins, MidiIn::default())?,
//midi_outs: register_ports(&self.client, self.midi_outs, MidiOut::default())?,
//};
//let midi_outs = owned_ports
//.midi_outs
//.values()
//.map(|p| Ok(p.name()?))
//.collect::<Usually<Vec<_>>>()?;
//let midi_ins = owned_ports
//.midi_ins
//.values()
//.map(|p| Ok(p.name()?))
//.collect::<Usually<Vec<_>>>()?;
//let audio_outs = owned_ports
//.audio_outs
//.values()
//.map(|p| Ok(p.name()?))
//.collect::<Usually<Vec<_>>>()?;
//let audio_ins = owned_ports
//.audio_ins
//.values()
//.map(|p| Ok(p.name()?))
//.collect::<Usually<Vec<_>>>()?;
//let state = Arc::new(RwLock::new(state(owned_ports) as Box<dyn AudioComponent<E>>));
//let client = self.client.activate_async(
//Notifications(Box::new({
//let _state = state.clone();
//move |_event| {
//// FIXME: this deadlocks
////state.lock().unwrap().handle(&event).unwrap();
//}
//}) as Box<dyn Fn(JackEvent) + Send + Sync>),
//contrib::ClosureProcessHandler::new(Box::new({
//let state = state.clone();
//move |c: &Client, s: &ProcessScope| state.write().unwrap().process(c, s)
//}) as BoxedAudioHandler),
//)?;
//Ok(JackDevice {
//ports: UnownedJackPorts {
//audio_ins: query_ports(&client.as_client(), audio_ins),
//audio_outs: query_ports(&client.as_client(), audio_outs),
//midi_ins: query_ports(&client.as_client(), midi_ins),
//midi_outs: query_ports(&client.as_client(), midi_outs),
//},
//client,
//state,
//})
//}
//pub fn audio_in(mut self, name: &str) -> Self {
//self.audio_ins.push(name.to_string());
//self
//}
//pub fn audio_out(mut self, name: &str) -> Self {
//self.audio_outs.push(name.to_string());
//self
//}
//pub fn midi_in(mut self, name: &str) -> Self {
//self.midi_ins.push(name.to_string());
//self
//}
//pub fn midi_out(mut self, name: &str) -> Self {
//self.midi_outs.push(name.to_string());
//self
//}
//}

65
crates/tek_api/src/arrange.rs Normal file
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use scene::*;
pub struct Arrangement {
/// JACK client handle (needs to not be dropped for standalone mode to work).
pub jack: Arc<RwLock<JackClient>>,
/// Global timebase
pub clock: Arc<Clock>,
/// Name of arranger
pub name: Arc<RwLock<String>>,
/// Collection of phrases.
pub phrases: Arc<RwLock<Vec<Phrase>>>,
/// Collection of tracks.
pub tracks: Vec<SequencerTrack>,
/// Collection of scenes.
pub scenes: Vec<Scene>,
}
impl Audio for Arrangement {
fn process (&mut self, client: &Client, scope: &ProcessScope) -> Control {
for track in self.tracks.iter_mut() {
track.player.process(client, scope);
}
Control::Continue
}
}
#[derive(Clone)]
pub enum ArrangementCommand {
New,
Load,
Save,
ToggleViewMode,
Delete,
Activate,
Increment,
Decrement,
ZoomIn,
ZoomOut,
Go(Direction),
Edit(Option<Arc<RwLock<Phrase>>>),
Scene(SceneCommand),
Track(TrackCommand),
Clip(ClipCommand),
}
#[derive(Clone)]
pub enum ArrangementTrackCommand {
Next,
Prev,
Add,
Delete,
MoveForward,
MoveBack,
RandomColor,
SetSize(usize),
SetZoom(usize),
}
#[derive(Clone)]
pub enum ArrangementClipCommand {
SetLoop(bool),
Get(usize, usize),
Put(usize, usize, Option<Arc<RwLock<Phrase>>>),
Edit(Option<Arc<RwLock<Phrase>>>),
}

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use crate::*;
/// A timer with starting point, current time, and quantization
#[derive(Default, Debug)]
pub struct Clock {
/// Playback state
pub playing: RwLock<Option<TransportState>>,
/// Global sample and usec at which playback started
pub started: RwLock<Option<(usize, usize)>>,
/// Current moment in time
pub current: Instant,
/// Note quantization factor
pub quant: Quantize,
/// Launch quantization factor
pub sync: LaunchSync,
}
impl Clock {
#[inline] pub fn timebase (&self) -> &Arc<Timebase> {
&self.current.timebase
}
#[inline] pub fn pulse (&self) -> f64 {
self.current.pulse.get()
}
#[inline] pub fn quant (&self) -> f64 {
self.quant.get()
}
#[inline] pub fn sync (&self) -> f64 {
self.sync.get()
}
#[inline] pub fn next_launch_pulse (&self) -> usize {
let sync = self.sync.get() as usize;
let pulse = self.current.pulse.get() as usize;
if pulse % sync == 0 { pulse } else { (pulse / sync + 1) * sync }
}
}

303
crates/tek_api/src/lib.rs
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@ -1,292 +1,23 @@
pub(crate) use tek_core::*;
pub(crate) use tek_core::jack::{TransportState, Port, MidiIn, MidiOut};
pub(crate) use tek_core::midly::{MidiMessage, num::u7};
pub(crate) use tek_core::jack::*;
pub(crate) use tek_core::midly::{*, live::LiveEvent, num::u7};
pub(crate) use std::thread::JoinHandle;
pub(crate) use std::fmt::{Debug, Formatter, Error};
submod! {
clock
mixer
phrase
plugin
pool
sampler
sample
scene
sequencer
track
transport
voice
api_cmd
api_edn
}
/// A timer with starting point, current time, and quantization
#[derive(Default, Debug)]
pub struct Clock {
/// Playback state
pub playing: RwLock<Option<TransportState>>,
/// Global sample and usec at which playback started
pub started: RwLock<Option<(usize, usize)>>,
/// Current moment in time
pub current: Instant,
/// Note quantization factor
pub quant: Quantize,
/// Launch quantization factor
pub sync: LaunchSync,
}
impl Clock {
#[inline] pub fn timebase (&self) -> &Arc<Timebase> {
&self.current.timebase
}
#[inline] pub fn pulse (&self) -> f64 {
self.current.pulse.get()
}
#[inline] pub fn quant (&self) -> f64 {
self.quant.get()
}
#[inline] pub fn sync (&self) -> f64 {
self.sync.get()
}
#[inline] pub fn next_launch_pulse (&self) -> usize {
let sync = self.sync.get() as usize;
let pulse = self.current.pulse.get() as usize;
if pulse % sync == 0 { pulse } else { (pulse / sync + 1) * sync }
}
}
pub struct TransportToolbar {
pub jack: Arc<RwLock<JackClient>>,
/// JACK transport handle.
pub transport: jack::Transport,
/// Current sample rate, tempo, and PPQ.
pub clock: Arc<Clock>,
/// Enable metronome?
pub metronome: bool,
}
pub struct Arrangement {
/// JACK client handle (needs to not be dropped for standalone mode to work).
pub jack: Arc<RwLock<JackClient>>,
/// Global timebase
pub clock: Arc<Clock>,
/// Name of arranger
pub name: Arc<RwLock<String>>,
/// Collection of phrases.
pub phrases: Arc<RwLock<Vec<Phrase>>>,
/// Collection of tracks.
pub tracks: Vec<Sequencer>,
/// Collection of scenes.
pub scenes: Vec<Scene>,
}
#[derive(Debug)]
pub struct Sequencer {
/// Name of track
pub name: Arc<RwLock<String>>,
/// Preferred width of track column
pub width: usize,
/// Identifying color of track
pub color: ItemColor,
/// MIDI player/recorder
pub player: PhrasePlayer,
}
/// Phrase player.
#[derive(Debug)]
pub struct PhrasePlayer {
/// Global timebase
pub clock: Arc<Clock>,
/// Start time and phrase being played
pub phrase: Option<(Instant, Option<Arc<RwLock<Phrase>>>)>,
/// Start time and next phrase
pub next_phrase: Option<(Instant, Option<Arc<RwLock<Phrase>>>)>,
/// Play input through output.
pub monitoring: bool,
/// Write input to sequence.
pub recording: bool,
/// Overdub input to sequence.
pub overdub: bool,
/// Send all notes off
pub reset: bool, // TODO?: after Some(nframes)
/// Record from MIDI ports to current sequence.
pub midi_inputs: Vec<Port<MidiIn>>,
/// Play from current sequence to MIDI ports
pub midi_outputs: Vec<Port<MidiOut>>,
/// MIDI output buffer
pub midi_note: Vec<u8>,
/// MIDI output buffer
pub midi_chunk: Vec<Vec<Vec<u8>>>,
/// Notes currently held at input
pub notes_in: Arc<RwLock<[bool; 128]>>,
/// Notes currently held at output
pub notes_out: Arc<RwLock<[bool; 128]>>,
}
#[derive(Default, Debug, Clone)]
pub struct Scene {
/// Name of scene
pub name: Arc<RwLock<String>>,
/// Clips in scene, one per track
pub clips: Vec<Option<Arc<RwLock<Phrase>>>>,
/// Identifying color of scene
pub color: ItemColor,
}
/// A MIDI sequence.
#[derive(Debug, Clone, Default)]
pub struct Phrase {
pub uuid: uuid::Uuid,
/// Name of phrase
pub name: String,
/// Temporal resolution in pulses per quarter note
pub ppq: usize,
/// Length of phrase in pulses
pub length: usize,
/// Notes in phrase
pub notes: PhraseData,
/// Whether to loop the phrase or play it once
pub loop_on: bool,
/// Start of loop
pub loop_start: usize,
/// Length of loop
pub loop_length: usize,
/// All notes are displayed with minimum length
pub percussive: bool,
/// Identifying color of phrase
pub color: ItemColorTriplet,
}
/// MIDI message structural
pub type PhraseData = Vec<Vec<MidiMessage>>;
#[derive(Debug)]
pub struct Mixer {
/// JACK client handle (needs to not be dropped for standalone mode to work).
pub jack: Arc<RwLock<JackClient>>,
pub name: String,
pub tracks: Vec<MixerTrack>,
pub selected_track: usize,
pub selected_column: usize,
}
/// A mixer track.
#[derive(Debug)]
pub struct MixerTrack {
pub name: String,
/// Inputs and outputs of 1st and last device
pub ports: JackPorts,
/// Device chain
pub devices: Vec<JackClient>,
}
/// The sampler plugin plays sounds.
#[derive(Debug)]
pub struct Sampler {
pub jack: Arc<RwLock<JackClient>>,
pub name: String,
pub mapped: BTreeMap<u7, Arc<RwLock<Sample>>>,
pub unmapped: Vec<Arc<RwLock<Sample>>>,
pub voices: Arc<RwLock<Vec<Voice>>>,
pub ports: JackPorts,
pub buffer: Vec<Vec<f32>>,
pub output_gain: f32
}
/// A sound sample.
#[derive(Default, Debug)]
pub struct Sample {
pub name: String,
pub start: usize,
pub end: usize,
pub channels: Vec<Vec<f32>>,
pub rate: Option<usize>,
}
/// A currently playing instance of a sample.
#[derive(Default, Debug, Clone)]
pub struct Voice {
pub sample: Arc<RwLock<Sample>>,
pub after: usize,
pub position: usize,
pub velocity: f32,
}
/// A plugin device.
#[derive(Debug)]
pub struct Plugin {
/// JACK client handle (needs to not be dropped for standalone mode to work).
pub jack: Arc<RwLock<JackClient>>,
pub name: String,
pub path: Option<String>,
pub plugin: Option<PluginKind>,
pub selected: usize,
pub mapping: bool,
pub ports: JackPorts,
}
impl Plugin {
pub fn new_lv2 (
jack: &Arc<RwLock<JackClient>>,
name: &str,
path: &str,
) -> Usually<JackDevice> {
let plugin = LV2Plugin::new(path)?;
jack_from_lv2(name, &plugin.plugin)?.run(|ports|Box::new(Self {
jack: jack.clone(),
name: name.into(),
path: Some(String::from(path)),
plugin: Some(PluginKind::LV2(plugin)),
selected: 0,
mapping: false,
ports
}))
}
}
/// Supported plugin formats.
#[derive(Default)]
pub enum PluginKind {
#[default] None,
LV2(LV2Plugin),
VST2 { instance: ::vst::host::PluginInstance },
VST3,
}
impl std::fmt::Debug for PluginKind {
fn fmt (&self, f: &mut std::fmt::Formatter<'_>) -> Result<(), std::fmt::Error> {
write!(f, "{}", match self {
Self::None => "(none)",
Self::LV2(_) => "LV2",
Self::VST2{..} => "VST2",
Self::VST3 => "VST3",
})
}
}
/// A LV2 plugin.
#[derive(Debug)]
pub struct LV2Plugin {
pub world: livi::World,
pub instance: livi::Instance,
pub plugin: livi::Plugin,
pub features: Arc<livi::Features>,
pub port_list: Vec<livi::Port>,
pub input_buffer: Vec<livi::event::LV2AtomSequence>,
pub ui_thread: Option<JoinHandle<()>>,
}
impl LV2Plugin {
const INPUT_BUFFER: usize = 1024;
pub fn new (uri: &str) -> Usually<Self> {
let world = livi::World::with_load_bundle(&uri);
let features = world
.build_features(livi::FeaturesBuilder {
min_block_length: 1,
max_block_length: 65536,
});
let plugin = world
.iter_plugins()
.nth(0)
.expect(&format!("plugin not found: {uri}"));
Ok(Self {
instance: unsafe {
plugin
.instantiate(features.clone(), 48000.0)
.expect(&format!("instantiate failed: {uri}"))
},
port_list: plugin.ports().collect::<Vec<_>>(),
input_buffer: Vec::with_capacity(Self::INPUT_BUFFER),
ui_thread: None,
world,
features,
plugin,
})
}
api_jack
}

17
crates/tek_api/src/mixer.rs Normal file
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use crate::*;
#[derive(Debug)]
pub struct Mixer {
/// JACK client handle (needs to not be dropped for standalone mode to work).
pub jack: Arc<RwLock<JackClient>>,
pub name: String,
pub tracks: Vec<MixerTrack>,
pub selected_track: usize,
pub selected_column: usize,
}
impl Audio for Mixer {
fn process (&mut self, _: &Client, _: &ProcessScope) -> Control {
Control::Continue
}
}

78
crates/tek_api/src/phrase.rs Normal file
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use crate::*;
/// A MIDI sequence.
#[derive(Debug, Clone, Default)]
pub struct Phrase {
pub uuid: uuid::Uuid,
/// Name of phrase
pub name: String,
/// Temporal resolution in pulses per quarter note
pub ppq: usize,
/// Length of phrase in pulses
pub length: usize,
/// Notes in phrase
pub notes: PhraseData,
/// Whether to loop the phrase or play it once
pub loop_on: bool,
/// Start of loop
pub loop_start: usize,
/// Length of loop
pub loop_length: usize,
/// All notes are displayed with minimum length
pub percussive: bool,
/// Identifying color of phrase
pub color: ItemColorTriplet,
}
/// MIDI message structural
pub type PhraseData = Vec<Vec<MidiMessage>>;
impl Phrase {
pub fn new (
name: impl AsRef<str>,
loop_on: bool,
length: usize,
notes: Option<PhraseData>,
color: Option<ItemColorTriplet>,
) -> Self {
Self {
uuid: uuid::Uuid::new_v4(),
name: name.as_ref().to_string(),
ppq: PPQ,
length,
notes: notes.unwrap_or(vec![Vec::with_capacity(16);length]),
loop_on,
loop_start: 0,
loop_length: length,
percussive: true,
color: color.unwrap_or_else(ItemColorTriplet::random)
}
}
pub fn duplicate (&self) -> Self {
let mut clone = self.clone();
clone.uuid = uuid::Uuid::new_v4();
clone
}
pub fn toggle_loop (&mut self) { self.loop_on = !self.loop_on; }
pub fn record_event (&mut self, pulse: usize, message: MidiMessage) {
if pulse >= self.length { panic!("extend phrase first") }
self.notes[pulse].push(message);
}
/// Check if a range `start..end` contains MIDI Note On `k`
pub fn contains_note_on (&self, k: u7, start: usize, end: usize) -> bool {
//panic!("{:?} {start} {end}", &self);
for events in self.notes[start.max(0)..end.min(self.notes.len())].iter() {
for event in events.iter() {
if let MidiMessage::NoteOn {key,..} = event { if *key == k { return true } }
}
}
return false
}
}
impl Default for Phrase {
fn default () -> Self {
Self::new("(empty)", false, 0, None, Some(ItemColor::from(Color::Rgb(0, 0, 0)).into()))
}
}
impl PartialEq for Phrase { fn eq (&self, other: &Self) -> bool { self.uuid == other.uuid } }
impl Eq for Phrase {}

190
crates/tek_api/src/plugin.rs Normal file
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use crate::*;
/// A plugin device.
#[derive(Debug)]
pub struct Plugin {
/// JACK client handle (needs to not be dropped for standalone mode to work).
pub jack: Arc<RwLock<JackClient>>,
pub name: String,
pub path: Option<String>,
pub plugin: Option<PluginKind>,
pub selected: usize,
pub mapping: bool,
}
impl Plugin {
pub fn new_lv2 (
jack: &Arc<RwLock<JackClient>>,
name: &str,
path: &str,
) -> Usually<Self> {
Ok(Self {
jack: jack.clone(),
name: name.into(),
path: Some(String::from(path)),
plugin: Some(PluginKind::LV2(LV2Plugin::new(path)?)),
selected: 0,
mapping: false,
})
}
//fn jack_from_lv2 (name: &str, plugin: &::livi::Plugin) -> Usually<Jack> {
//let counts = plugin.port_counts();
//let mut jack = Jack::new(name)?;
//for i in 0..counts.atom_sequence_inputs {
//jack = jack.midi_in(&format!("midi-in-{i}"))
//}
//for i in 0..counts.atom_sequence_outputs {
//jack = jack.midi_out(&format!("midi-out-{i}"));
//}
//for i in 0..counts.audio_inputs {
//jack = jack.audio_in(&format!("audio-in-{i}"));
//}
//for i in 0..counts.audio_outputs {
//jack = jack.audio_out(&format!("audio-out-{i}"));
//}
//Ok(jack)
//}
}
/// Supported plugin formats.
#[derive(Default)]
pub enum PluginKind {
#[default] None,
LV2(LV2Plugin),
VST2 { instance: ::vst::host::PluginInstance },
VST3,
}
impl Debug for PluginKind {
fn fmt (&self, f: &mut Formatter<'_>) -> Result<(), Error> {
write!(f, "{}", match self {
Self::None => "(none)",
Self::LV2(_) => "LV2",
Self::VST2{..} => "VST2",
Self::VST3 => "VST3",
})
}
}
/// A LV2 plugin.
#[derive(Debug)]
pub struct LV2Plugin {
pub world: livi::World,
pub instance: livi::Instance,
pub plugin: livi::Plugin,
pub features: Arc<livi::Features>,
pub port_list: Vec<livi::Port>,
pub input_buffer: Vec<livi::event::LV2AtomSequence>,
pub ui_thread: Option<JoinHandle<()>>,
}
impl LV2Plugin {
const INPUT_BUFFER: usize = 1024;
pub fn new (uri: &str) -> Usually<Self> {
let world = livi::World::with_load_bundle(&uri);
let features = world
.build_features(livi::FeaturesBuilder {
min_block_length: 1,
max_block_length: 65536,
});
let plugin = world
.iter_plugins()
.nth(0)
.expect(&format!("plugin not found: {uri}"));
Ok(Self {
instance: unsafe {
plugin
.instantiate(features.clone(), 48000.0)
.expect(&format!("instantiate failed: {uri}"))
},
port_list: plugin.ports().collect::<Vec<_>>(),
input_buffer: Vec::with_capacity(Self::INPUT_BUFFER),
ui_thread: None,
world,
features,
plugin,
})
}
}
impl LV2Plugin {
pub fn from_edn <'e> (jack: &Arc<RwLock<JackClient>>, args: &[Edn<'e>]) -> Usually<Self> {
let mut name = String::new();
let mut path = String::new();
edn!(edn in args {
Edn::Map(map) => {
if let Some(Edn::Str(n)) = map.get(&Edn::Key(":name")) {
name = String::from(*n);
}
if let Some(Edn::Str(p)) = map.get(&Edn::Key(":path")) {
path = String::from(*p);
}
},
_ => panic!("unexpected in lv2 '{name}'"),
});
Plugin::new_lv2(jack, &name, &path)
}
}
impl Audio for LV2Plugin {
fn process (&mut self, _: &Client, scope: &ProcessScope) -> Control {
Control::Continue
}
}
impl Audio for Plugin {
fn process (&mut self, _: &Client, scope: &ProcessScope) -> Control {
match self.plugin.as_mut() {
Some(PluginKind::LV2(LV2Plugin {
features,
ref mut instance,
ref mut input_buffer,
..
})) => {
let urid = features.midi_urid();
input_buffer.clear();
for port in self.ports.midi_ins.values() {
let mut atom = ::livi::event::LV2AtomSequence::new(
&features,
scope.n_frames() as usize
);
for event in port.iter(scope) {
match event.bytes.len() {
3 => atom.push_midi_event::<3>(
event.time as i64,
urid,
&event.bytes[0..3]
).unwrap(),
_ => {}
}
}
input_buffer.push(atom);
}
let mut outputs = vec![];
for _ in self.ports.midi_outs.iter() {
outputs.push(::livi::event::LV2AtomSequence::new(
&features,
scope.n_frames() as usize
));
}
let ports = ::livi::EmptyPortConnections::new()
.with_atom_sequence_inputs(
input_buffer.iter()
)
.with_atom_sequence_outputs(
outputs.iter_mut()
)
.with_audio_inputs(
self.ports.audio_ins.values().map(|o|o.as_slice(scope))
)
.with_audio_outputs(
self.ports.audio_outs.values_mut().map(|o|o.as_mut_slice(scope))
);
unsafe {
instance.run(scope.n_frames() as usize, ports).unwrap()
};
},
_ => {}
}
Control::Continue
}
}

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crates/tek_api/src/pool.rs Normal file
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use crate::*;
/// Contains all phrases in a project
pub struct PhrasePool {
/// Scroll offset
pub scroll: usize,
/// Highlighted phrase
pub phrase: usize,
/// Phrases in the pool
pub phrases: Vec<Arc<RwLock<Phrase>>>,
/// Mode switch
pub mode: Option<PhrasePoolMode>,
/// Whether this widget is focused
pub focused: bool,
/// Whether this widget is entered
pub entered: bool,
}

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use crate::*;
/// A sound sample.
#[derive(Default, Debug)]
pub struct Sample {
pub name: String,
pub start: usize,
pub end: usize,
pub channels: Vec<Vec<f32>>,
pub rate: Option<usize>,
}
impl Sample {
pub fn new (name: &str, start: usize, end: usize, channels: Vec<Vec<f32>>) -> Self {
Self { name: name.to_string(), start, end, channels, rate: None }
}
pub fn play (sample: &Arc<RwLock<Self>>, after: usize, velocity: &u7) -> Voice {
Voice {
sample: sample.clone(),
after,
position: sample.read().unwrap().start,
velocity: velocity.as_int() as f32 / 127.0,
}
}
pub fn from_edn <'e> (jack: &Arc<RwLock<JackClient>>, dir: &str, args: &[Edn<'e>]) -> Usually<(Option<u7>, Arc<RwLock<Self>>)> {
let mut name = String::new();
let mut file = String::new();
let mut midi = None;
let mut start = 0usize;
edn!(edn in args {
Edn::Map(map) => {
if let Some(Edn::Str(n)) = map.get(&Edn::Key(":name")) {
name = String::from(*n);
}
if let Some(Edn::Str(f)) = map.get(&Edn::Key(":file")) {
file = String::from(*f);
}
if let Some(Edn::Int(i)) = map.get(&Edn::Key(":start")) {
start = *i as usize;
}
if let Some(Edn::Int(m)) = map.get(&Edn::Key(":midi")) {
midi = Some(u7::from(*m as u8));
}
},
_ => panic!("unexpected in sample {name}"),
});
let (end, data) = Sample::read_data(&format!("{dir}/{file}"))?;
Ok((midi, Arc::new(RwLock::new(Self {
name: name.into(),
start,
end,
channels: data,
rate: None
}))))
}
/// Read WAV from file
pub fn read_data (src: &str) -> Usually<(usize, Vec<Vec<f32>>)> {
let mut channels: Vec<wavers::Samples<f32>> = vec![];
for channel in wavers::Wav::from_path(src)?.channels() {
channels.push(channel);
}
let mut end = 0;
let mut data: Vec<Vec<f32>> = vec![];
for samples in channels.iter() {
let channel = Vec::from(samples.as_ref());
end = end.max(channel.len());
data.push(channel);
}
Ok((end, data))
}
}

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use crate::*;
/// The sampler plugin plays sounds.
#[derive(Debug)]
pub struct Sampler {
pub jack: Arc<RwLock<JackClient>>,
pub name: String,
pub mapped: BTreeMap<u7, Arc<RwLock<Sample>>>,
pub unmapped: Vec<Arc<RwLock<Sample>>>,
pub voices: Arc<RwLock<Vec<Voice>>>,
pub midi_in: Port<MidiIn>,
pub audio_outs: Vec<Port<MidiOut>>,
pub buffer: Vec<Vec<f32>>,
pub output_gain: f32
}
impl Audio for Sampler {
fn process (&mut self, _: &Client, scope: &ProcessScope) -> Control {
self.process_midi_in(scope);
self.clear_output_buffer();
self.process_audio_out(scope);
self.write_output_buffer(scope);
Control::Continue
}
}
impl Sampler {
pub fn from_edn <'e> (jack: &Arc<RwLock<JackClient>>, args: &[Edn<'e>]) -> Usually<Self> {
let mut name = String::new();
let mut dir = String::new();
let mut samples = BTreeMap::new();
edn!(edn in args {
Edn::Map(map) => {
if let Some(Edn::Str(n)) = map.get(&Edn::Key(":name")) {
name = String::from(*n);
}
if let Some(Edn::Str(n)) = map.get(&Edn::Key(":dir")) {
dir = String::from(*n);
}
},
Edn::List(args) => match args.get(0) {
Some(Edn::Symbol("sample")) => {
let (midi, sample) = Sample::from_edn(jack, &dir, &args[1..])?;
if let Some(midi) = midi {
samples.insert(midi, sample);
} else {
panic!("sample without midi binding: {}", sample.read().unwrap().name);
}
},
_ => panic!("unexpected in sampler {name}: {args:?}")
},
_ => panic!("unexpected in sampler {name}: {edn:?}")
});
Ok(Sampler {
jack: jack.clone(),
name: name.into(),
mapped: samples,
unmapped: Default::default(),
voices: Default::default(),
ports: Default::default(),
buffer: Default::default(),
output_gain: 0.
})
}
}
/// A currently playing instance of a sample.
#[derive(Default, Debug, Clone)]
pub struct Voice {
pub sample: Arc<RwLock<Sample>>,
pub after: usize,
pub position: usize,
pub velocity: f32,
}

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use crate::*;
#[derive(Default, Debug, Clone)]
pub struct Scene {
/// Name of scene
pub name: Arc<RwLock<String>>,
/// Clips in scene, one per track
pub clips: Vec<Option<Arc<RwLock<Phrase>>>>,
/// Identifying color of scene
pub color: ItemColor,
}
impl Scene {
pub fn from_edn <'a, 'e> (args: &[Edn<'e>]) -> Usually<Self> {
let mut name = None;
let mut clips = vec![];
edn!(edn in args {
Edn::Map(map) => {
let key = map.get(&Edn::Key(":name"));
if let Some(Edn::Str(n)) = key {
name = Some(*n);
} else {
panic!("unexpected key in scene '{name:?}': {key:?}")
}
},
Edn::Symbol("_") => {
clips.push(None);
},
Edn::Int(i) => {
clips.push(Some(*i as usize));
},
_ => panic!("unexpected in scene '{name:?}': {edn:?}")
});
Ok(Scene {
name: Arc::new(name.unwrap_or("").to_string().into()),
color: ItemColor::random(),
clips,
})
}
}
#[derive(Clone)]
pub enum SceneCommand {
Next,
Prev,
Add,
Delete,
MoveForward,
MoveBack,
RandomColor,
SetSize(usize),
SetZoom(usize),
}

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use crate::*;
pub enum SequencerCommand {}
#[derive(Debug)]
pub struct SequencerTrack {
/// Name of track
pub name: Arc<RwLock<String>>,
/// Preferred width of track column
pub width: usize,
/// Identifying color of track
pub color: ItemColor,
/// Global timebase
pub clock: Arc<Clock>,
/// Start time and phrase being played
pub phrase: Option<(Instant, Option<Arc<RwLock<Phrase>>>)>,
/// Start time and next phrase
pub next_phrase: Option<(Instant, Option<Arc<RwLock<Phrase>>>)>,
/// Play input through output.
pub monitoring: bool,
/// Write input to sequence.
pub recording: bool,
/// Overdub input to sequence.
pub overdub: bool,
/// Send all notes off
pub reset: bool, // TODO?: after Some(nframes)
/// Record from MIDI ports to current sequence.
pub midi_inputs: Vec<Port<MidiIn>>,
/// Play from current sequence to MIDI ports
pub midi_outputs: Vec<Port<MidiOut>>,
/// MIDI output buffer
pub midi_note: Vec<u8>,
/// MIDI output buffer
pub midi_chunk: Vec<Vec<Vec<u8>>>,
/// Notes currently held at input
pub notes_in: Arc<RwLock<[bool; 128]>>,
/// Notes currently held at output
pub notes_out: Arc<RwLock<[bool; 128]>>,
}
/// JACK process callback for a sequencer's phrase player/recorder.
impl Audio for SequencerTrack {
fn process (&mut self, _: &Client, scope: &ProcessScope) -> Control {
let has_midi_outputs = self.has_midi_outputs();
let has_midi_inputs = self.has_midi_inputs();
// Clear output buffer(s)
self.clear(scope, false);
// Write chunk of phrase to output, handle switchover
if self.play(scope) {
self.switchover(scope);
}
if has_midi_inputs {
if self.recording || self.monitoring {
// Record and/or monitor input
self.record(scope)
} else if has_midi_outputs && self.monitoring {
// Monitor input to output
self.monitor(scope)
}
}
// Write to output port(s)
self.write(scope);
Control::Continue
}
}
/// Methods used primarily by the process callback
impl SequencerTrack {
fn is_rolling (&self) -> bool {
*self.clock.playing.read().unwrap() == Some(TransportState::Rolling)
}
fn has_midi_inputs (&self) -> bool {
self.midi_inputs.len() > 0
}
fn has_midi_outputs (&self) -> bool {
self.midi_outputs.len() > 0
}
/// Clear the section of the output buffer that we will be using,
/// emitting "all notes off" at start of buffer if requested.
fn clear (&mut self, scope: &ProcessScope, force_reset: bool) {
for frame in &mut self.midi_chunk[0..scope.n_frames() as usize] {
frame.clear();
}
if self.reset || force_reset {
all_notes_off(&mut self.midi_chunk); self.reset = false;
}
}
fn play (&mut self, scope: &ProcessScope) -> bool {
let mut next = false;
// Write MIDI events from currently playing phrase (if any) to MIDI output buffer
if self.is_rolling() {
let sample0 = scope.last_frame_time() as usize;
let samples = scope.n_frames() as usize;
// If no phrase is playing, prepare for switchover immediately
next = self.phrase.is_none();
if let Some((started, phrase)) = &self.phrase {
// First sample to populate. Greater than 0 means that the first
// pulse of the phrase falls somewhere in the middle of the chunk.
let sample = started.sample.get() as usize;
let sample = sample + self.clock.started.read().unwrap().unwrap().0;
let sample = sample0.saturating_sub(sample);
// Iterator that emits sample (index into output buffer at which to write MIDI event)
// paired with pulse (index into phrase from which to take the MIDI event) for each
// sample of the output buffer that corresponds to a MIDI pulse.
let pulses = self.clock.timebase().pulses_between_samples(sample, sample + samples);
// Notes active during current chunk.
let notes = &mut self.notes_out.write().unwrap();
for (sample, pulse) in pulses {
// If a next phrase is enqueued, and we're past the end of the current one,
// break the loop here (FIXME count pulse correctly)
next = self.next_phrase.is_some() && if let Some(ref phrase) = phrase {
pulse >= phrase.read().unwrap().length
} else {
true
};
if next {
break
}
// If there's a currently playing phrase, output notes from it to buffer:
if let Some(ref phrase) = phrase {
// Source phrase from which the MIDI events will be taken.
let phrase = phrase.read().unwrap();
// Current pulse index in source phrase
let pulse = pulse % phrase.length;
// Output each MIDI event from phrase at appropriate frames of output buffer:
for message in phrase.notes[pulse].iter() {
// Clear output buffer for this MIDI event.
self.midi_note.clear();
// TODO: support MIDI channels other than CH1.
let channel = 0.into();
// Serialize MIDI event into message buffer.
LiveEvent::Midi { channel, message: *message }
.write(&mut self.midi_note)
.unwrap();
// Append serialized message to output buffer.
self.midi_chunk[sample].push(self.midi_note.clone());
// Update the list of currently held notes.
update_keys(notes, &message);
}
}
}
}
}
next
}
fn switchover (&mut self, scope: &ProcessScope) {
if self.is_rolling() {
let sample0 = scope.last_frame_time() as usize;
//let samples = scope.n_frames() as usize;
if let Some((start_at, phrase)) = &self.next_phrase {
let start = start_at.sample.get() as usize;
let sample = self.clock.started.read().unwrap().unwrap().0;
// If it's time to switch to the next phrase:
if start <= sample0.saturating_sub(sample) {
// Samples elapsed since phrase was supposed to start
let skipped = sample0 - start;
// Switch over to enqueued phrase
let started = Instant::from_sample(&self.clock.timebase(), start as f64);
self.phrase = Some((started, phrase.clone()));
// Unset enqueuement (TODO: where to implement looping?)
self.next_phrase = None
}
// TODO fill in remaining ticks of chunk from next phrase.
// ?? just call self.play(scope) again, since enqueuement is off ???
self.play(scope);
// ?? or must it be with modified scope ??
// likely not because start time etc
}
}
}
fn record (&mut self, scope: &ProcessScope) {
let sample0 = scope.last_frame_time() as usize;
if let (true, Some((started, phrase))) = (self.is_rolling(), &self.phrase) {
let start = started.sample.get() as usize;
let quant = self.clock.quant.get();
// For highlighting keys and note repeat
let mut notes_in = self.notes_in.write().unwrap();
// Record from each input
for input in self.midi_inputs.iter() {
for (sample, event, bytes) in parse_midi_input(input.iter(scope)) {
if let LiveEvent::Midi { message, .. } = event {
if self.monitoring {
self.midi_chunk[sample].push(bytes.to_vec())
}
if self.recording {
if let Some(phrase) = phrase {
let mut phrase = phrase.write().unwrap();
let length = phrase.length;
phrase.record_event({
let sample = (sample0 + sample - start) as f64;
let pulse = self.clock.timebase().samples_to_pulse(sample);
let quantized = (pulse / quant).round() * quant;
let looped = quantized as usize % length;
looped
}, message);
}
}
update_keys(&mut notes_in, &message);
}
}
}
}
if let (true, Some((start_at, phrase))) = (self.is_rolling(), &self.next_phrase) {
// TODO switch to next phrase and record into it
}
}
fn monitor (&mut self, scope: &ProcessScope) {
let mut notes_in = self.notes_in.write().unwrap();
for input in self.midi_inputs.iter() {
for (sample, event, bytes) in parse_midi_input(input.iter(scope)) {
if let LiveEvent::Midi { message, .. } = event {
self.midi_chunk[sample].push(bytes.to_vec());
update_keys(&mut notes_in, &message);
}
}
}
}
fn write (&mut self, scope: &ProcessScope) {
let samples = scope.n_frames() as usize;
for port in self.midi_outputs.iter_mut() {
let writer = &mut port.writer(scope);
let output = &self.midi_chunk;
for time in 0..samples {
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
)))
}
/// Update notes_in array
pub fn update_keys (keys: &mut[bool;128], message: &MidiMessage) {
match message {
MidiMessage::NoteOn { key, .. } => { keys[key.as_int() as usize] = true; }
MidiMessage::NoteOff { key, .. } => { keys[key.as_int() as usize] = false; },
_ => {}
}
}

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use crate::*;
pub enum MixerTrackCommand {}
/// A mixer track.
#[derive(Debug)]
pub struct MixerTrack {
pub name: String,
/// Inputs of 1st device
pub audio_ins: Vec<Port<AudioIn>>,
/// Outputs of last device
pub audio_outs: Vec<Port<AudioOut>>,
/// Device chain
pub devices: Vec<Box<dyn MixerTrackDevice>>,
}
pub trait MixerTrackDevice: Audio + Debug {
fn boxed (self) -> Box<dyn MixerTrackDevice> where Self: Sized + 'static {
Box::new(self)
}
}
impl MixerTrackDevice for Sampler {}
impl MixerTrackDevice for LV2Plugin {}
impl MixerTrack {
const SYM_NAME: &'static str = ":name";
const SYM_GAIN: &'static str = ":gain";
const SYM_SAMPLER: &'static str = "sampler";
const SYM_LV2: &'static str = "lv2";
pub fn from_edn <'a, 'e> (jack: &Arc<RwLock<JackClient>>, args: &[Edn<'e>]) -> Usually<Self> {
let mut _gain = 0.0f64;
let mut track = MixerTrack {
name: String::new(),
audio_ins: vec![],
audio_outs: vec![],
devices: vec![],
};
#[allow(unused_mut)]
let mut devices: Vec<JackClient> = vec![];
edn!(edn in args {
Edn::Map(map) => {
if let Some(Edn::Str(n)) = map.get(&Edn::Key(Self::SYM_NAME)) {
track.name = n.to_string();
}
if let Some(Edn::Double(g)) = map.get(&Edn::Key(Self::SYM_GAIN)) {
_gain = f64::from(*g);
}
},
Edn::List(args) => match args.get(0) {
// Add a sampler device to the track
Some(Edn::Symbol(Self::SYM_SAMPLER)) => {
track.add_device(
Sampler::from_edn(jack, &args[1..])?
);
panic!(
"unsupported in track {}: {:?}; tek_mixer not compiled with feature \"sampler\"",
&track.name,
args.get(0).unwrap()
)
},
// Add a LV2 plugin to the track.
Some(Edn::Symbol(Self::SYM_LV2)) => {
track.add_device(
LV2Plugin::from_edn(jack, &args[1..])?
);
panic!(
"unsupported in track {}: {:?}; tek_mixer not compiled with feature \"plugin\"",
&track.name,
args.get(0).unwrap()
)
},
None =>
panic!("empty list track {}", &track.name),
_ =>
panic!("unexpected in track {}: {:?}", &track.name, args.get(0).unwrap())
},
_ => {}
});
Ok(track)
}
pub fn add_device (&mut self, device: impl MixerTrackDevice) {
self.devices.push(device.boxed())
}
}

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use crate::*;
#[derive(Copy, Clone, PartialEq)]
pub enum TransportCommand {
FocusNext,
FocusPrev,
Play(Option<usize>),
Pause(Option<usize>),
SeekUsec(f64),
SeekSample(f64),
SeekPulse(f64),
SetBpm(f64),
SetQuant(f64),
SetSync(f64),
}
pub struct Transport {
pub jack: Arc<RwLock<JackClient>>,
/// JACK transport handle.
pub transport: jack::Transport,
/// Current sample rate, tempo, and PPQ.
pub clock: Arc<Clock>,
/// Enable metronome?
pub metronome: bool,
}
impl Audio for Transport {
fn process (&mut self, _: &Client, scope: &ProcessScope) -> Control {
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.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();
if *playing != Some(transport.state) {
match transport.state {
TransportState::Rolling => {
*started = Some((current_frames as usize, current_usecs as usize))
},
TransportState::Stopped => {
*started = None
},
_ => {}
}
};
*playing = Some(transport.state);
if *playing == Some(TransportState::Stopped) {
*started = None;
}
self.clock.current.update_from_usec(match *started {
Some((_, usecs)) => current_usecs as f64 - usecs as f64,
None => 0.
});
Control::Continue
}
}

0
crates/tek_api/src/voice.rs Normal file
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