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wip: refactor pt.21: api traits
This commit is contained in:
parent
b8708d6b2d
commit
029614631e
10 changed files with 626 additions and 490 deletions
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@ -1,36 +1,32 @@
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use crate::*;
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use jack::*;
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/// Trait for things that have a JACK process callback.
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pub trait Audio: Send + Sync {
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fn process(&mut self, _: &Client, _: &ProcessScope) -> Control {
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Control::Continue
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}
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fn callback(
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state: &Arc<RwLock<Self>>, client: &Client, scope: &ProcessScope
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) -> Control where Self: Sized {
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if let Ok(mut state) = state.write() {
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state.process(client, scope)
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} else {
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Control::Quit
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}
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}
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#[derive(Debug)]
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/// Event enum for JACK events.
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pub enum JackEvent {
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ThreadInit,
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Shutdown(ClientStatus, String),
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Freewheel(bool),
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SampleRate(Frames),
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ClientRegistration(String, bool),
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PortRegistration(PortId, bool),
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PortRename(PortId, String, String),
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PortsConnected(PortId, PortId, bool),
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GraphReorder,
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XRun,
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}
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/// A UI component that may be associated with a JACK client by the `Jack` factory.
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pub trait AudioComponent<E: Engine>: Component<E> + Audio {
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/// Perform type erasure for collecting heterogeneous devices.
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fn boxed(self) -> Box<dyn AudioComponent<E>>
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where
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Self: Sized + 'static,
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{
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Box::new(self)
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}
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/// Wraps [Client] or [DynamicAsyncClient] in place.
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#[derive(Debug)]
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pub enum JackClient {
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/// Before activation.
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Inactive(Client),
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/// During activation.
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Activating,
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/// After activation. Must not be dropped for JACK thread to persist.
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Active(DynamicAsyncClient),
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}
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/// All things that implement the required traits can be treated as `AudioComponent`.
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impl<E: Engine, W: Component<E> + Audio> AudioComponent<E> for W {}
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/// Trait for things that wrap a JACK client.
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pub trait AudioEngine {
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@ -82,64 +78,6 @@ pub trait AudioEngine {
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}
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}
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/// Wraps [Client] or [DynamicAsyncClient] in place.
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#[derive(Debug)]
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pub enum JackClient {
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/// Before activation.
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Inactive(Client),
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/// During activation.
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Activating,
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/// After activation. Must not be dropped for JACK thread to persist.
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Active(DynamicAsyncClient),
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}
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pub type DynamicAsyncClient = AsyncClient<DynamicNotifications, DynamicAudioHandler>;
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pub type DynamicAudioHandler = contrib::ClosureProcessHandler<(), BoxedAudioHandler>;
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pub type BoxedAudioHandler = Box<dyn FnMut(&Client, &ProcessScope) -> Control + Send>;
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impl JackClient {
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pub fn new (name: &str) -> Usually<Self> {
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let (client, _) = Client::new(name, ClientOptions::NO_START_SERVER)?;
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Ok(Self::Inactive(client))
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}
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pub fn activate_with <T: Audio + 'static> (
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self,
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init: impl FnOnce(&Arc<RwLock<JackClient>>)->Usually<T>
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)
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-> Usually<Arc<RwLock<T>>>
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{
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let client = Arc::new(RwLock::new(self));
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let target = Arc::new(RwLock::new(init(&client)?));
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let event = Box::new(move|_|{/*TODO*/}) as Box<dyn Fn(JackEvent) + Send + Sync>;
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let events = Notifications(event);
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let frame = Box::new({
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let target = target.clone();
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move|c: &_, s: &_|if let Ok(mut target) = target.write() {
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target.process(c, s)
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} else {
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Control::Quit
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}
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});
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let frames = contrib::ClosureProcessHandler::new(frame as BoxedAudioHandler);
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let mut buffer = Self::Activating;
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std::mem::swap(&mut*client.write().unwrap(), &mut buffer);
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*client.write().unwrap() = Self::Active(Client::from(buffer).activate_async(events, frames)?);
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Ok(target)
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}
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}
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impl From<JackClient> for Client {
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fn from (jack: JackClient) -> Client {
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match jack {
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JackClient::Inactive(client) => client,
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JackClient::Activating => panic!("jack client still activating"),
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JackClient::Active(_) => panic!("jack client already activated"),
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}
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}
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}
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impl AudioEngine for JackClient {
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fn client(&self) -> &Client {
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match self {
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@ -166,57 +104,27 @@ impl AudioEngine for JackClient {
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}
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}
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#[derive(Debug)]
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/// Event enum for JACK events.
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pub enum JackEvent {
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ThreadInit,
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Shutdown(ClientStatus, String),
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Freewheel(bool),
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SampleRate(Frames),
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ClientRegistration(String, bool),
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PortRegistration(PortId, bool),
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PortRename(PortId, String, String),
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PortsConnected(PortId, PortId, bool),
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GraphReorder,
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XRun,
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}
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pub type DynamicAsyncClient = AsyncClient<DynamicNotifications, DynamicAudioHandler>;
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/// Trait for things that may expose JACK ports.
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pub trait Ports {
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fn audio_ins(&self) -> Usually<Vec<&Port<Unowned>>> {
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Ok(vec![])
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}
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fn audio_outs(&self) -> Usually<Vec<&Port<Unowned>>> {
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Ok(vec![])
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}
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fn midi_ins(&self) -> Usually<Vec<&Port<Unowned>>> {
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Ok(vec![])
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}
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fn midi_outs(&self) -> Usually<Vec<&Port<Unowned>>> {
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Ok(vec![])
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pub type DynamicAudioHandler = contrib::ClosureProcessHandler<(), BoxedAudioHandler>;
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pub type BoxedAudioHandler = Box<dyn FnMut(&Client, &ProcessScope) -> Control + Send>;
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impl JackClient {
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pub fn new (name: &str) -> Usually<Self> {
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let (client, _) = Client::new(name, ClientOptions::NO_START_SERVER)?;
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Ok(Self::Inactive(client))
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}
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}
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fn register_ports<T: PortSpec + Copy>(
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client: &Client,
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names: Vec<String>,
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spec: T,
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) -> Usually<BTreeMap<String, Port<T>>> {
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names
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.into_iter()
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.try_fold(BTreeMap::new(), |mut ports, name| {
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let port = client.register_port(&name, spec)?;
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ports.insert(name, port);
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Ok(ports)
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})
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}
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fn query_ports(client: &Client, names: Vec<String>) -> BTreeMap<String, Port<Unowned>> {
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names.into_iter().fold(BTreeMap::new(), |mut ports, name| {
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let port = client.port_by_name(&name).unwrap();
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ports.insert(name, port);
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ports
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})
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impl From<JackClient> for Client {
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fn from (jack: JackClient) -> Client {
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match jack {
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JackClient::Inactive(client) => client,
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JackClient::Activating => panic!("jack client still activating"),
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JackClient::Active(_) => panic!("jack client already activated"),
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}
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}
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}
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/// Notification handler used by the [Jack] factory
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@ -271,264 +179,3 @@ impl<T: Fn(JackEvent) + Send> NotificationHandler for Notifications<T> {
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Control::Continue
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}
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}
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///// A [AudioComponent] bound to a JACK client and a set of ports.
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//pub struct JackDevice<E: Engine> {
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///// The active JACK client of this device.
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//pub client: DynamicAsyncClient,
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///// The device state, encapsulated for sharing between threads.
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//pub state: Arc<RwLock<Box<dyn AudioComponent<E>>>>,
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///// Unowned copies of the device's JACK ports, for connecting to the device.
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///// The "real" readable/writable `Port`s are owned by the `state`.
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//pub ports: UnownedJackPorts,
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//}
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//impl<E: Engine> std::fmt::Debug for JackDevice<E> {
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//fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
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//f.debug_struct("JackDevice")
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//.field("ports", &self.ports)
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//.finish()
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//}
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//}
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//impl<E: Engine> Widget for JackDevice<E> {
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//type Engine = E;
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//fn layout(&self, to: E::Size) -> Perhaps<E::Size> {
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//self.state.read().unwrap().layout(to)
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//}
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//fn render(&self, to: &mut E::Output) -> Usually<()> {
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//self.state.read().unwrap().render(to)
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//}
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//}
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//impl<E: Engine> Handle<E> for JackDevice<E> {
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//fn handle(&mut self, from: &E::Input) -> Perhaps<E::Handled> {
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//self.state.write().unwrap().handle(from)
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//}
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//}
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//impl<E: Engine> Ports for JackDevice<E> {
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//fn audio_ins(&self) -> Usually<Vec<&Port<Unowned>>> {
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//Ok(self.ports.audio_ins.values().collect())
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//}
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//fn audio_outs(&self) -> Usually<Vec<&Port<Unowned>>> {
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//Ok(self.ports.audio_outs.values().collect())
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//}
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//fn midi_ins(&self) -> Usually<Vec<&Port<Unowned>>> {
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//Ok(self.ports.midi_ins.values().collect())
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//}
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//fn midi_outs(&self) -> Usually<Vec<&Port<Unowned>>> {
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//Ok(self.ports.midi_outs.values().collect())
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//}
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//}
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//impl<E: Engine> JackDevice<E> {
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///// Returns a locked mutex of the state's contents.
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//pub fn state(&self) -> LockResult<RwLockReadGuard<Box<dyn AudioComponent<E>>>> {
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//self.state.read()
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//}
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///// Returns a locked mutex of the state's contents.
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//pub fn state_mut(&self) -> LockResult<RwLockWriteGuard<Box<dyn AudioComponent<E>>>> {
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//self.state.write()
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//}
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//pub fn connect_midi_in(&self, index: usize, port: &Port<Unowned>) -> Usually<()> {
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//Ok(self
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//.client
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//.as_client()
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//.connect_ports(port, self.midi_ins()?[index])?)
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//}
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//pub fn connect_midi_out(&self, index: usize, port: &Port<Unowned>) -> Usually<()> {
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//Ok(self
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//.client
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//.as_client()
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//.connect_ports(self.midi_outs()?[index], port)?)
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//}
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//pub fn connect_audio_in(&self, index: usize, port: &Port<Unowned>) -> Usually<()> {
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//Ok(self
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//.client
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//.as_client()
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//.connect_ports(port, self.audio_ins()?[index])?)
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//}
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//pub fn connect_audio_out(&self, index: usize, port: &Port<Unowned>) -> Usually<()> {
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//Ok(self
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//.client
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//.as_client()
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//.connect_ports(self.audio_outs()?[index], port)?)
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//}
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//}
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///// Collection of JACK ports as [AudioIn]/[AudioOut]/[MidiIn]/[MidiOut].
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//#[derive(Default, Debug)]
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//pub struct JackPorts {
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//pub audio_ins: BTreeMap<String, Port<AudioIn>>,
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//pub midi_ins: BTreeMap<String, Port<MidiIn>>,
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//pub audio_outs: BTreeMap<String, Port<AudioOut>>,
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//pub midi_outs: BTreeMap<String, Port<MidiOut>>,
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//}
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///// Collection of JACK ports as [Unowned].
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//#[derive(Default, Debug)]
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//pub struct UnownedJackPorts {
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//pub audio_ins: BTreeMap<String, Port<Unowned>>,
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//pub midi_ins: BTreeMap<String, Port<Unowned>>,
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//pub audio_outs: BTreeMap<String, Port<Unowned>>,
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//pub midi_outs: BTreeMap<String, Port<Unowned>>,
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//}
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//impl JackPorts {
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//pub fn clone_unowned(&self) -> UnownedJackPorts {
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//let mut unowned = UnownedJackPorts::default();
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//for (name, port) in self.midi_ins.iter() {
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//unowned.midi_ins.insert(name.clone(), port.clone_unowned());
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//}
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//for (name, port) in self.midi_outs.iter() {
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//unowned.midi_outs.insert(name.clone(), port.clone_unowned());
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//}
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//for (name, port) in self.audio_ins.iter() {
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//unowned.audio_ins.insert(name.clone(), port.clone_unowned());
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//}
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//for (name, port) in self.audio_outs.iter() {
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//unowned
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//.audio_outs
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//.insert(name.clone(), port.clone_unowned());
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//}
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//unowned
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//}
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//}
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///// Implement the `Ports` trait.
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//#[macro_export]
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//macro_rules! ports {
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//($T:ty $({ $(audio: {
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//$(ins: |$ai_arg:ident|$ai_impl:expr,)?
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//$(outs: |$ao_arg:ident|$ao_impl:expr,)?
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//})? $(midi: {
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//$(ins: |$mi_arg:ident|$mi_impl:expr,)?
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//$(outs: |$mo_arg:ident|$mo_impl:expr,)?
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//})?})?) => {
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//impl Ports for $T {$(
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//$(
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//$(fn audio_ins <'a> (&'a self) -> Usually<Vec<&'a Port<Unowned>>> {
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//let cb = |$ai_arg:&'a Self|$ai_impl;
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//cb(self)
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//})?
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//)?
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//$(
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//$(fn audio_outs <'a> (&'a self) -> Usually<Vec<&'a Port<Unowned>>> {
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//let cb = (|$ao_arg:&'a Self|$ao_impl);
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//cb(self)
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//})?
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//)?
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//)? $(
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//$(
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//$(fn midi_ins <'a> (&'a self) -> Usually<Vec<&'a Port<Unowned>>> {
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//let cb = (|$mi_arg:&'a Self|$mi_impl);
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//cb(self)
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//})?
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//)?
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//$(
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//$(fn midi_outs <'a> (&'a self) -> Usually<Vec<&'a Port<Unowned>>> {
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//let cb = (|$mo_arg:&'a Self|$mo_impl);
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//cb(self)
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//})?
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//)?
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//)?}
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//};
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//}
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///// `JackDevice` factory. Creates JACK `Client`s, performs port registration
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///// and activation, and encapsulates a `AudioComponent` into a `JackDevice`.
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//pub struct Jack {
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//pub client: Client,
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//pub midi_ins: Vec<String>,
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//pub audio_ins: Vec<String>,
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//pub midi_outs: Vec<String>,
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//pub audio_outs: Vec<String>,
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//}
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//impl Jack {
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//pub fn new(name: &str) -> Usually<Self> {
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//Ok(Self {
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//midi_ins: vec![],
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//audio_ins: vec![],
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//midi_outs: vec![],
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//audio_outs: vec![],
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//client: Client::new(name, ClientOptions::NO_START_SERVER)?.0,
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//})
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//}
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//pub fn run<'a: 'static, D, E>(
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//self,
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//state: impl FnOnce(JackPorts) -> Box<D>,
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//) -> Usually<JackDevice<E>>
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//where
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//D: AudioComponent<E> + Sized + 'static,
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//E: Engine + 'static,
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//{
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//let owned_ports = JackPorts {
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//audio_ins: register_ports(&self.client, self.audio_ins, AudioIn::default())?,
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//audio_outs: register_ports(&self.client, self.audio_outs, AudioOut::default())?,
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//midi_ins: register_ports(&self.client, self.midi_ins, MidiIn::default())?,
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//midi_outs: register_ports(&self.client, self.midi_outs, MidiOut::default())?,
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//};
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//let midi_outs = owned_ports
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//.midi_outs
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//.values()
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//.map(|p| Ok(p.name()?))
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//.collect::<Usually<Vec<_>>>()?;
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//let midi_ins = owned_ports
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//.midi_ins
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//.values()
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//.map(|p| Ok(p.name()?))
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//.collect::<Usually<Vec<_>>>()?;
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//let audio_outs = owned_ports
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//.audio_outs
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//.values()
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//.map(|p| Ok(p.name()?))
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//.collect::<Usually<Vec<_>>>()?;
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//let audio_ins = owned_ports
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//.audio_ins
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//.values()
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//.map(|p| Ok(p.name()?))
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//.collect::<Usually<Vec<_>>>()?;
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//let state = Arc::new(RwLock::new(state(owned_ports) as Box<dyn AudioComponent<E>>));
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//let client = self.client.activate_async(
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//Notifications(Box::new({
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//let _state = state.clone();
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//move |_event| {
|
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//// FIXME: this deadlocks
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////state.lock().unwrap().handle(&event).unwrap();
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//}
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//}) as Box<dyn Fn(JackEvent) + Send + Sync>),
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//contrib::ClosureProcessHandler::new(Box::new({
|
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//let state = state.clone();
|
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//move |c: &Client, s: &ProcessScope| state.write().unwrap().process(c, s)
|
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//}) as BoxedAudioHandler),
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//)?;
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//Ok(JackDevice {
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//ports: UnownedJackPorts {
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//audio_ins: query_ports(&client.as_client(), audio_ins),
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//audio_outs: query_ports(&client.as_client(), audio_outs),
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//midi_ins: query_ports(&client.as_client(), midi_ins),
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//midi_outs: query_ports(&client.as_client(), midi_outs),
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//},
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//client,
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||||
//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
|
||||
//}
|
||||
//}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue