wip: enabling autoconnecting ports

This commit is contained in:
🪞👃🪞 2025-01-09 20:40:26 +01:00
parent c23f52c87b
commit fe70b57dc1
10 changed files with 375 additions and 424 deletions

View file

@ -1,169 +1,151 @@
use crate::*; use crate::*;
#[derive(Debug)]
pub struct JackPort<T: PortSpec> { pub struct JackPort<T: PortSpec> {
/// Handle to JACK client, for receiving reconnect events. /// Handle to JACK client, for receiving reconnect events.
pub jack: Arc<RwLock<JackConnection>>, pub jack: Arc<RwLock<JackConnection>>,
/// Port handle. /// Port handle.
pub port: Port<T>, pub port: Port<T>,
/// List of ports to connect to. /// List of ports to connect to.
pub connect: Vec<PortConnect> pub connect: Vec<PortConnection>
} }
pub struct PortConnect { impl<T: PortSpec> JackPort<T> {
pub name: PortConnectName, pub fn connect_to_matching (&mut self) {
pub order: PortConnectScope, use PortConnectionName::*;
pub status: Vec<(Port<Unowned>, PortConnectStatus)>, use PortConnectionScope::*;
} use PortConnectionStatus::*;
impl PortConnect { for connect in self.connect.iter_mut() {
/// Connect to this exact port let mut status = vec![];
pub fn exact (name: impl AsRef<str>) -> Self { match &connect.name {
let name = PortConnectName::Exact(name.as_ref().into()); Exact(name) => for port in self.jack.ports(None, None, PortFlags::empty()).iter() {
Self { name, order: PortConnectScope::One, status: vec![] } if port.as_str() == &**name {
if let Some(port) = self.jack.port_by_name(port.as_str()) {
let port_status = Self::try_both_ways(&self.jack, &port, &self.port);
status.push((port, port_status));
if port_status == Connected {
break
}
}
}
},
RegExp(re) => for port in self.jack.ports(Some(&re), None, PortFlags::empty()).iter() {
if let Some(port) = self.jack.port_by_name(port.as_str()) {
let port_status = Self::try_both_ways(&self.jack, &port, &self.port);
status.push((port, port_status));
if port_status == Connected && connect.scope == One {
break
}
}
}
}
connect.status = status
}
} }
pub fn wildcard (name: impl AsRef<str>) -> Self { fn try_both_ways <A: PortSpec, B: PortSpec> (
let name = PortConnectName::Wildcard(name.as_ref().into()); jack: &impl ConnectPort, port_a: &Port<A>, port_b: &Port<B>
Self { name, order: PortConnectScope::One, status: vec![] } )
} -> PortConnectionStatus
pub fn wildcard_all (name: impl AsRef<str>) -> Self { {
let name = PortConnectName::Wildcard(name.as_ref().into()); if let Ok(_) = jack.connect_ports(port_a, port_b) {
Self { name, order: PortConnectScope::All, status: vec![] } PortConnectionStatus::Connected
} } else if let Ok(_) = jack.connect_ports(port_b, port_a) {
pub fn regexp (name: impl AsRef<str>) -> Self { PortConnectionStatus::Connected
let name = PortConnectName::RegExp(name.as_ref().into()); } else {
Self { name, order: PortConnectScope::One, status: vec![] } PortConnectionStatus::Mismatch
} }
pub fn regexp_all (name: impl AsRef<str>) -> Self {
let name = PortConnectName::RegExp(name.as_ref().into());
Self { name, order: PortConnectScope::All, status: vec![] }
} }
} }
#[derive(Clone, Debug, PartialEq)] #[derive(Clone, Debug, PartialEq)]
pub enum PortConnectName { pub struct PortConnection {
/// Exact match pub name: PortConnectionName,
Exact(Arc<str>), pub scope: PortConnectionScope,
/// Match wildcard pub status: Vec<(Port<Unowned>, PortConnectionStatus)>,
Wildcard(Arc<str>), }
/// Match regular expression impl PortConnection {
RegExp(Arc<str>), /// Connect to this exact port
pub fn exact (name: impl AsRef<str>) -> Self {
let name = PortConnectionName::Exact(name.as_ref().into());
Self { name, scope: PortConnectionScope::One, status: vec![] }
}
pub fn regexp (name: impl AsRef<str>) -> Self {
let name = PortConnectionName::RegExp(name.as_ref().into());
Self { name, scope: PortConnectionScope::One, status: vec![] }
}
pub fn regexp_all (name: impl AsRef<str>) -> Self {
let name = PortConnectionName::RegExp(name.as_ref().into());
Self { name, scope: PortConnectionScope::All, status: vec![] }
}
}
#[derive(Clone, Debug, PartialEq)]
pub enum PortConnectionName {
/** Exact match */ Exact(Arc<str>),
/** Match regular expression */ RegExp(Arc<str>),
} }
#[derive(Clone, Copy, Debug, PartialEq)] #[derive(Clone, Copy, Debug, PartialEq)]
pub enum PortConnectScope { One, All } pub enum PortConnectionScope { One, All }
#[derive(Clone, Copy, Debug, PartialEq)] #[derive(Clone, Copy, Debug, PartialEq)]
pub enum PortConnectStatus { Missing, Disconnected, Connected, Mismatch, } pub enum PortConnectionStatus { Missing, Disconnected, Connected, Mismatch, }
impl<T: PortSpec> AsRef<Port<T>> for JackPort<T> { impl<T: PortSpec> AsRef<Port<T>> for JackPort<T> {
fn as_ref (&self) -> &Port<T> { fn as_ref (&self) -> &Port<T> {
&self.port &self.port
} }
} }
impl<T: PortSpec> JackPort<T> { impl JackPort<MidiIn> {
pub fn midi_in ( pub fn new (
jack: Arc<RwLock<JackConnection>>, name: impl AsRef<str>, connect: &[PortConnect] jack: &Arc<RwLock<JackConnection>>, name: impl AsRef<str>, connect: &[PortConnection]
) -> Usually<JackPort<MidiIn>> { ) -> Usually<Self> {
let input = jack.midi_in(name)?; let mut port = JackPort {
for port in connect.iter() { jack: jack.clone(),
let port = port.as_ref(); port: jack.midi_in(name)?,
if let Some(output) = jack.port_by_name(port).as_ref() { connect: connect.to_vec()
jack.connect_ports(output, &input)?; };
} else { port.connect_to_matching();
panic!("Missing MIDI output: {port}. Use jack_lsp to list all port names."); Ok(port)
}
}
Ok(JackPort { jack: jack.clone(), port: input, connect: connect.clone() })
}
pub fn midi_out (
jack: Arc<RwLock<JackConnection>>,
name: impl AsRef<str>,
connect: &[impl AsRef<str>]
) -> Usually<JackPort<MidiOut>> {
let output = jack.midi_out(name)?;
for port in connect.iter() {
let port = port.as_ref();
if let Some(input) = jack.port_by_name(port).as_ref() {
jack.connect_ports(&output, input)?;
} else {
panic!("Missing MIDI input: {port}. Use jack_lsp to list all port names.");
}
}
Ok(JackPort { jack: jack.clone(), port: output, connect: connect.into() })
}
pub fn audio_in (
jack: Arc<RwLock<JackConnection>>,
name: impl AsRef<str>,
connect: &[impl AsRef<str>]
) -> Usually<JackPort<AudioIn>> {
let input = jack.audio_in(name)?;
for port in connect.iter() {
let port = port.as_ref();
if let Some(output) = jack.port_by_name(port).as_ref() {
jack.connect_ports(output, &input)?;
} else {
panic!("Missing MIDI output: {port}. Use jack_lsp to list all port names.");
}
}
Ok(JackPort { jack: jack.clone(), port: input, connect: connect.into() })
}
pub fn audio_out (
jack: Arc<RwLock<JackConnection>>,
name: impl AsRef<str>,
connect: &[impl AsRef<str>]
) -> Usually<JackPort<AudioOut>> {
let output = jack.audio_out(name)?;
for port in connect.iter() {
let port = port.as_ref();
if let Some(input) = jack.port_by_name(port).as_ref() {
jack.client().connect_ports(&output, input)?;
} else {
panic!("Missing MIDI input: {port}. Use jack_lsp to list all port names.");
}
}
Ok(JackPort { jack: jack.clone(), port: output, connect: connect.into() })
} }
} }
impl JackPort<MidiOut> {
pub fn new (
/// This is a utility trait for things that may register or connect [Port]s. jack: &Arc<RwLock<JackConnection>>, name: impl AsRef<str>, connect: &[PortConnection]
/// It contains shorthand methods to this purpose. It's implemented for ) -> Usually<Self> {
/// `Arc<RwLock<JackConnection>>` for terse port registration in the let mut port = Self {
/// `init` callback of [JackClient::activate_with]. jack: jack.clone(),
pub trait RegisterPort { port: jack.midi_out(name)?,
fn midi_in (&self, name: impl AsRef<str>) -> Usually<Port<MidiIn>>; connect: connect.to_vec()
fn midi_out (&self, name: impl AsRef<str>) -> Usually<Port<MidiOut>>; };
fn audio_in (&self, name: impl AsRef<str>) -> Usually<Port<AudioIn>>; port.connect_to_matching();
fn audio_out (&self, name: impl AsRef<str>) -> Usually<Port<AudioOut>>; Ok(port)
}
impl RegisterPort for JackConnection {
fn midi_in (&self, name: impl AsRef<str>) -> Usually<Port<MidiIn>> {
Ok(self.client().register_port(name.as_ref(), MidiIn::default())?)
}
fn midi_out (&self, name: impl AsRef<str>) -> Usually<Port<MidiOut>> {
Ok(self.client().register_port(name.as_ref(), MidiOut::default())?)
}
fn audio_in (&self, name: impl AsRef<str>) -> Usually<Port<AudioIn>> {
Ok(self.client().register_port(name.as_ref(), AudioIn::default())?)
}
fn audio_out (&self, name: impl AsRef<str>) -> Usually<Port<AudioOut>> {
Ok(self.client().register_port(name.as_ref(), AudioOut::default())?)
} }
} }
impl<T: RegisterPort> RegisterPort for Arc<RwLock<T>> { impl JackPort<AudioIn> {
fn midi_in (&self, name: impl AsRef<str>) -> Usually<Port<MidiIn>> { pub fn new (
self.read().unwrap().midi_in(name) jack: &Arc<RwLock<JackConnection>>, name: impl AsRef<str>, connect: &[PortConnection]
) -> Usually<Self> {
let mut port = Self {
jack: jack.clone(),
port: jack.audio_in(name)?,
connect: connect.to_vec()
};
port.connect_to_matching();
Ok(port)
} }
fn midi_out (&self, name: impl AsRef<str>) -> Usually<Port<MidiOut>> { }
self.read().unwrap().midi_out(name) impl JackPort<AudioOut> {
} pub fn new (
fn audio_in (&self, name: impl AsRef<str>) -> Usually<Port<AudioIn>> { jack: &Arc<RwLock<JackConnection>>, name: impl AsRef<str>, connect: &[PortConnection]
self.read().unwrap().audio_in(name) ) -> Usually<Self> {
} let mut port = Self {
fn audio_out (&self, name: impl AsRef<str>) -> Usually<Port<AudioOut>> { jack: jack.clone(),
self.read().unwrap().audio_out(name) port: jack.audio_out(name)?,
connect: connect.to_vec()
};
port.connect_to_matching();
Ok(port)
} }
} }
pub trait ConnectPort { pub trait ConnectPort {
fn ports (&self, re_name: Option<&str>, re_type: Option<&str>, flags: PortFlags) -> Vec<String>;
fn port_by_name (&self, name: impl AsRef<str>) -> Option<Port<Unowned>>; fn port_by_name (&self, name: impl AsRef<str>) -> Option<Port<Unowned>>;
fn connect_ports <A: PortSpec, B: PortSpec> (&self, source: &Port<A>, target: &Port<B>) fn connect_ports <A: PortSpec, B: PortSpec> (&self, source: &Port<A>, target: &Port<B>)
-> Usually<()>; -> Usually<()>;
@ -213,6 +195,9 @@ pub trait ConnectPort {
} }
} }
impl ConnectPort for JackConnection { impl ConnectPort for JackConnection {
fn ports (&self, re_name: Option<&str>, re_type: Option<&str>, flags: PortFlags) -> Vec<String> {
self.client().ports(re_name, re_type, flags)
}
fn port_by_name (&self, name: impl AsRef<str>) -> Option<Port<Unowned>> { fn port_by_name (&self, name: impl AsRef<str>) -> Option<Port<Unowned>> {
self.client().port_by_name(name.as_ref()) self.client().port_by_name(name.as_ref())
} }
@ -223,6 +208,9 @@ impl ConnectPort for JackConnection {
} }
} }
impl<T: ConnectPort> ConnectPort for Arc<RwLock<T>> { impl<T: ConnectPort> ConnectPort for Arc<RwLock<T>> {
fn ports (&self, re_name: Option<&str>, re_type: Option<&str>, flags: PortFlags) -> Vec<String> {
self.read().unwrap().ports(re_name, re_type, flags)
}
fn port_by_name (&self, name: impl AsRef<str>) -> Option<Port<Unowned>> { fn port_by_name (&self, name: impl AsRef<str>) -> Option<Port<Unowned>> {
self.read().unwrap().port_by_name(name.as_ref()) self.read().unwrap().port_by_name(name.as_ref())
} }
@ -233,6 +221,45 @@ impl<T: ConnectPort> ConnectPort for Arc<RwLock<T>> {
} }
} }
/// This is a utility trait for things that may register or connect [Port]s.
/// It contains shorthand methods to this purpose. It's implemented for
/// `Arc<RwLock<JackConnection>>` for terse port registration in the
/// `init` callback of [JackClient::activate_with].
pub trait RegisterPort {
fn midi_in (&self, name: impl AsRef<str>) -> Usually<Port<MidiIn>>;
fn midi_out (&self, name: impl AsRef<str>) -> Usually<Port<MidiOut>>;
fn audio_in (&self, name: impl AsRef<str>) -> Usually<Port<AudioIn>>;
fn audio_out (&self, name: impl AsRef<str>) -> Usually<Port<AudioOut>>;
}
impl RegisterPort for JackConnection {
fn midi_in (&self, name: impl AsRef<str>) -> Usually<Port<MidiIn>> {
Ok(self.client().register_port(name.as_ref(), MidiIn::default())?)
}
fn midi_out (&self, name: impl AsRef<str>) -> Usually<Port<MidiOut>> {
Ok(self.client().register_port(name.as_ref(), MidiOut::default())?)
}
fn audio_in (&self, name: impl AsRef<str>) -> Usually<Port<AudioIn>> {
Ok(self.client().register_port(name.as_ref(), AudioIn::default())?)
}
fn audio_out (&self, name: impl AsRef<str>) -> Usually<Port<AudioOut>> {
Ok(self.client().register_port(name.as_ref(), AudioOut::default())?)
}
}
impl<T: RegisterPort> RegisterPort for Arc<RwLock<T>> {
fn midi_in (&self, name: impl AsRef<str>) -> Usually<Port<MidiIn>> {
self.read().unwrap().midi_in(name)
}
fn midi_out (&self, name: impl AsRef<str>) -> Usually<Port<MidiOut>> {
self.read().unwrap().midi_out(name)
}
fn audio_in (&self, name: impl AsRef<str>) -> Usually<Port<AudioIn>> {
self.read().unwrap().audio_in(name)
}
fn audio_out (&self, name: impl AsRef<str>) -> Usually<Port<AudioOut>> {
self.read().unwrap().audio_out(name)
}
}
///// Collection of JACK ports as [AudioIn]/[AudioOut]/[MidiIn]/[MidiOut]. ///// Collection of JACK ports as [AudioIn]/[AudioOut]/[MidiIn]/[MidiOut].
//#[derive(Default, Debug)] //#[derive(Default, Debug)]
//pub struct JackPorts { //pub struct JackPorts {

View file

@ -6,7 +6,8 @@ pub(crate) use ::jack::{
contrib::ClosureProcessHandler, NotificationHandler, contrib::ClosureProcessHandler, NotificationHandler,
Client, AsyncClient, ClientOptions, ClientStatus, Client, AsyncClient, ClientOptions, ClientStatus,
ProcessScope, Control, Frames, ProcessScope, Control, Frames,
Port, PortId, PortSpec, Unowned, MidiIn, MidiOut, AudioIn, AudioOut, Port, PortId, PortSpec, PortFlags,
Unowned, MidiIn, MidiOut, AudioIn, AudioOut,
}; };
mod from_jack; pub use self::from_jack::*; mod from_jack; pub use self::from_jack::*;

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@ -2,8 +2,8 @@ use crate::*;
/// Trait for thing that may receive MIDI. /// Trait for thing that may receive MIDI.
pub trait HasMidiIns { pub trait HasMidiIns {
fn midi_ins (&self) -> &Vec<Port<MidiIn>>; fn midi_ins (&self) -> &Vec<JackPort<MidiIn>>;
fn midi_ins_mut (&mut self) -> &mut Vec<Port<MidiIn>>; fn midi_ins_mut (&mut self) -> &mut Vec<JackPort<MidiIn>>;
fn has_midi_ins (&self) -> bool { fn has_midi_ins (&self) -> bool {
!self.midi_ins().is_empty() !self.midi_ins().is_empty()
} }
@ -27,7 +27,7 @@ pub trait MidiRecordApi: HasClock + HasPlayPhrase + HasMidiIns {
let notes_in = self.notes_in().clone(); let notes_in = self.notes_in().clone();
let monitoring = self.monitoring(); let monitoring = self.monitoring();
for input in self.midi_ins_mut().iter() { for input in self.midi_ins_mut().iter() {
for (sample, event, bytes) in parse_midi_input(input.iter(scope)) { for (sample, event, bytes) in parse_midi_input(input.port.iter(scope)) {
if let LiveEvent::Midi { message, .. } = event { if let LiveEvent::Midi { message, .. } = event {
if monitoring { if monitoring {
midi_buf[sample].push(bytes.to_vec()); midi_buf[sample].push(bytes.to_vec());
@ -67,7 +67,7 @@ pub trait MidiRecordApi: HasClock + HasPlayPhrase + HasMidiIns {
let mut phrase = phrase.write().unwrap(); let mut phrase = phrase.write().unwrap();
let length = phrase.length; let length = phrase.length;
for input in self.midi_ins_mut().iter() { for input in self.midi_ins_mut().iter() {
for (sample, event, bytes) in parse_midi_input(input.iter(scope)) { for (sample, event, bytes) in parse_midi_input(input.port.iter(scope)) {
if let LiveEvent::Midi { message, .. } = event { if let LiveEvent::Midi { message, .. } = event {
phrase.record_event({ phrase.record_event({
let sample = (sample0 + sample - start) as f64; let sample = (sample0 + sample - start) as f64;

View file

@ -2,8 +2,8 @@ use crate::*;
/// Trait for thing that may output MIDI. /// Trait for thing that may output MIDI.
pub trait HasMidiOuts { pub trait HasMidiOuts {
fn midi_outs (&self) -> &Vec<Port<MidiOut>>; fn midi_outs (&self) -> &Vec<JackPort<MidiOut>>;
fn midi_outs_mut (&mut self) -> &mut Vec<Port<MidiOut>>; fn midi_outs_mut (&mut self) -> &mut Vec<JackPort<MidiOut>>;
fn has_midi_outs (&self) -> bool { fn has_midi_outs (&self) -> bool {
!self.midi_outs().is_empty() !self.midi_outs().is_empty()
} }
@ -143,7 +143,7 @@ pub trait MidiPlaybackApi: HasPlayPhrase + HasClock + HasMidiOuts {
fn write (&mut self, scope: &ProcessScope, out: &[Vec<Vec<u8>>]) { fn write (&mut self, scope: &ProcessScope, out: &[Vec<Vec<u8>>]) {
let samples = scope.n_frames() as usize; let samples = scope.n_frames() as usize;
for port in self.midi_outs_mut().iter_mut() { for port in self.midi_outs_mut().iter_mut() {
Self::write_port(&mut port.writer(scope), samples, out) Self::write_port(&mut port.port.writer(scope), samples, out)
} }
} }

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@ -35,9 +35,9 @@ pub struct MidiPlayer {
/// Send all notes off /// Send all notes off
pub reset: bool, // TODO?: after Some(nframes) pub reset: bool, // TODO?: after Some(nframes)
/// Record from MIDI ports to current sequence. /// Record from MIDI ports to current sequence.
pub midi_ins: Vec<Port<MidiIn>>, pub midi_ins: Vec<JackPort<MidiIn>>,
/// Play from current sequence to MIDI ports /// Play from current sequence to MIDI ports
pub midi_outs: Vec<Port<MidiOut>>, pub midi_outs: Vec<JackPort<MidiOut>>,
/// Notes currently held at input /// Notes currently held at input
pub notes_in: Arc<RwLock<[bool; 128]>>, pub notes_in: Arc<RwLock<[bool; 128]>>,
/// Notes currently held at output /// Notes currently held at output
@ -47,33 +47,28 @@ pub struct MidiPlayer {
} }
impl MidiPlayer { impl MidiPlayer {
pub fn new ( pub fn new (
jack: &Arc<RwLock<JackConnection>>, jack: &Arc<RwLock<JackConnection>>,
name: impl AsRef<str>, name: impl AsRef<str>,
clip: Option<&Arc<RwLock<MidiClip>>>, clip: Option<&Arc<RwLock<MidiClip>>>,
midi_from: &[impl AsRef<str>], midi_from: &[PortConnection],
midi_to: &[impl AsRef<str>], midi_to: &[PortConnection],
) -> Usually<Self> { ) -> Usually<Self> {
let name = name.as_ref(); let name = name.as_ref();
let midi_in = jack.midi_in(&format!("M/{name}"), midi_from)?; let clock = Clock::from(jack);
jack.connect_midi_from(&midi_in, midi_from)?;
let midi_out = jack.midi_out(&format!("{name}/M"), midi_to)?;
jack.connect_midi_to(&midi_out, midi_to)?;
let clock = Clock::from(jack);
Ok(Self { Ok(Self {
play_phrase: Some((Moment::zero(&clock.timebase), clip.cloned())), play_phrase: Some((Moment::zero(&clock.timebase), clip.cloned())),
next_phrase: None, next_phrase: None,
recording: false, recording: false,
monitoring: false, monitoring: false,
overdub: false, overdub: false,
notes_in: RwLock::new([false;128]).into(), notes_in: RwLock::new([false;128]).into(),
midi_ins: vec![midi_in], notes_out: RwLock::new([false;128]).into(),
midi_outs: vec![midi_out], note_buf: vec![0;8],
notes_out: RwLock::new([false;128]).into(), reset: true,
note_buf: vec![0;8],
reset: true,
midi_ins: vec![JackPort::<MidiIn>::new(jack, format!("M/{name}"), midi_from)?,],
midi_outs: vec![JackPort::<MidiOut>::new(jack, format!("{name}/M"), midi_to)?, ],
clock, clock,
}) })
} }
@ -114,26 +109,14 @@ from!(|state: (&Clock, &Arc<RwLock<MidiClip>>)|MidiPlayer = {
model model
}); });
has_clock!(|self: MidiPlayer|&self.clock); has_clock!(|self: MidiPlayer|&self.clock);
impl HasMidiIns for MidiPlayer { impl HasMidiIns for MidiPlayer {
fn midi_ins (&self) -> &Vec<Port<MidiIn>> { fn midi_ins (&self) -> &Vec<JackPort<MidiIn>> { &self.midi_ins }
&self.midi_ins fn midi_ins_mut (&mut self) -> &mut Vec<JackPort<MidiIn>> { &mut self.midi_ins }
}
fn midi_ins_mut (&mut self) -> &mut Vec<Port<MidiIn>> {
&mut self.midi_ins
}
} }
impl HasMidiOuts for MidiPlayer { impl HasMidiOuts for MidiPlayer {
fn midi_outs (&self) -> &Vec<Port<MidiOut>> { fn midi_outs (&self) -> &Vec<JackPort<MidiOut>> { &self.midi_outs }
&self.midi_outs fn midi_outs_mut (&mut self) -> &mut Vec<JackPort<MidiOut>> { &mut self.midi_outs }
} fn midi_note (&mut self) -> &mut Vec<u8> { &mut self.note_buf }
fn midi_outs_mut (&mut self) -> &mut Vec<Port<MidiOut>> {
&mut self.midi_outs
}
fn midi_note (&mut self) -> &mut Vec<u8> {
&mut self.note_buf
}
} }
/// Hosts the JACK callback for a single MIDI player /// Hosts the JACK callback for a single MIDI player

View file

@ -15,67 +15,38 @@ pub struct TekCli {
#[arg(short='s', long, default_value_t = true)] sync_follow: bool, #[arg(short='s', long, default_value_t = true)] sync_follow: bool,
/// Initial tempo in beats per minute /// Initial tempo in beats per minute
#[arg(short='b', long, default_value = None)] bpm: Option<f64>, #[arg(short='b', long, default_value = None)] bpm: Option<f64>,
/// Whether to include a transport toolbar (default: true)
#[arg(short='t', long, default_value_t = true)] show_clock: bool,
/// MIDI outs to connect to (multiple instances accepted)
#[arg(short='I', long)] midi_from: Vec<String>,
/// MIDI outs to connect to (multiple instances accepted)
#[arg(short='i', long)] midi_from_re: Vec<String>,
/// MIDI ins to connect to (multiple instances accepted)
#[arg(short='O', long)] midi_to: Vec<String>,
/// MIDI ins to connect to (multiple instances accepted)
#[arg(short='o', long)] midi_to_re: Vec<String>,
/// Audio outs to connect to left input
#[arg(short='l', long)] l_from: Vec<String>,
/// Audio outs to connect to right input
#[arg(short='r', long)] r_from: Vec<String>,
/// Audio ins to connect from left output
#[arg(short='L', long)] l_to: Vec<String>,
/// Audio ins to connect from right output
#[arg(short='R', long)] r_to: Vec<String>,
} }
#[derive(Debug, Clone, Subcommand)] #[derive(Debug, Clone, Subcommand)]
pub enum TekMode { pub enum TekMode {
/// A standalone transport view. /// A standalone transport clock.
Clock, Clock,
/// A MIDI sequencer. /// A MIDI sequencer.
Sequencer { Sequencer,
/// Whether to include a transport toolbar (default: true)
#[arg(short='t', long, default_value_t = true)] show_clock: bool,
/// MIDI outs to connect to (multiple instances accepted)
#[arg(short='i', long)] midi_from: Vec<String>,
/// MIDI ins to connect to (multiple instances accepted)
#[arg(short='o', long)] midi_to: Vec<String>,
},
/// A MIDI-controlled audio sampler. /// A MIDI-controlled audio sampler.
Sampler { Sampler,
/// MIDI outs to connect to (multiple instances accepted)
#[arg(short='i', long)] midi_from: Vec<String>,
/// Audio outs to connect to left input
#[arg(short='l', long)] l_from: Vec<String>,
/// Audio outs to connect to right input
#[arg(short='r', long)] r_from: Vec<String>,
/// Audio ins to connect from left output
#[arg(short='L', long)] l_to: Vec<String>,
/// Audio ins to connect from right output
#[arg(short='R', long)] r_to: Vec<String>,
},
/// Sequencer and sampler together. /// Sequencer and sampler together.
Groovebox { Groovebox,
/// Whether to include a transport toolbar (default: true)
#[arg(short='t', long, default_value_t = true)] show_clock: bool,
/// MIDI outs to connect to (multiple instances accepted)
#[arg(short='i', long)] midi_from: Vec<String>,
/// MIDI ins to connect to (multiple instances accepted)
#[arg(short='o', long)] midi_to: Vec<String>,
/// Audio outs to connect to left input
#[arg(short='l', long)] l_from: Vec<String>,
/// Audio outs to connect to right input
#[arg(short='r', long)] r_from: Vec<String>,
/// Audio ins to connect from left output
#[arg(short='L', long)] l_to: Vec<String>,
/// Audio ins to connect from right output
#[arg(short='R', long)] r_to: Vec<String>,
},
/// Multi-track MIDI sequencer. /// Multi-track MIDI sequencer.
Arranger { Arranger {
/// Whether to include a transport toolbar (default: true)
#[arg(short='t', long, default_value_t = true)] show_clock: bool,
/// MIDI outs to connect to (multiple instances accepted)
#[arg(short='i', long)] midi_from: Vec<String>,
/// MIDI ins to connect to (multiple instances accepted)
#[arg(short='o', long)] midi_to: Vec<String>,
/// Audio outs to connect to left input
#[arg(short='l', long)] l_from: Vec<String>,
/// Audio outs to connect to right input
#[arg(short='r', long)] r_from: Vec<String>,
/// Audio ins to connect from left output
#[arg(short='L', long)] l_to: Vec<String>,
/// Audio ins to connect from right output
#[arg(short='R', long)] r_to: Vec<String>,
/// Number of tracks /// Number of tracks
#[arg(short = 'x', long, default_value_t = 16)] tracks: usize, #[arg(short = 'x', long, default_value_t = 16)] tracks: usize,
/// Width of tracks /// Width of tracks
@ -97,6 +68,12 @@ pub fn main () -> Usually<()> {
let name = cli.name.as_ref().map_or("tek", |x|x.as_str()); let name = cli.name.as_ref().map_or("tek", |x|x.as_str());
let jack = JackConnection::new(name)?; let jack = JackConnection::new(name)?;
let engine = Tui::new()?; let engine = Tui::new()?;
let mut midi_froms = vec![];
let mut midi_tos = vec![];
for port in cli.midi_from.iter() { midi_froms.push(PortConnection::exact(port.into())) }
for port in cli.midi_from_re.iter() { midi_froms.push(PortConnection::regexp(port.into())) }
for port in cli.midi_to.iter() { midi_tos.push(PortConnection::exact(port.into())) }
for port in cli.midi_to_re.iter() { midi_tos.push(PortConnection::regexp(port.into())) }
Ok(match cli.mode { Ok(match cli.mode {
TekMode::Clock => engine.run(&jack.activate_with(|jack|Ok(TransportTui { TekMode::Clock => engine.run(&jack.activate_with(|jack|Ok(TransportTui {
@ -104,15 +81,11 @@ pub fn main () -> Usually<()> {
jack: jack.clone() jack: jack.clone()
}))?)?, }))?)?,
TekMode::Sequencer { TekMode::Sequencer => engine.run(&jack.activate_with(|jack|Ok({
midi_from, midi_to, .. let length = 384;
} => engine.run(&jack.activate_with(|jack|Ok({ let color = Some(ItemColor::random().into());
let clock = Clock::from(jack); let clip = Arc::new(RwLock::new(MidiClip::new("Clip", true, length, None, color)));
let clip = Arc::new(RwLock::new(MidiClip::new( let player = MidiPlayer::new(&jack, name, Some(&clip), &midi_froms, &midi_tos)?;
"Clip", true, 4 * clock.timebase.ppq.get() as usize,
None, Some(ItemColor::random().into())
)));
let player = MidiPlayer::new(&jack, name, Some(&clip), &midi_from, &midi_to)?;
Sequencer { Sequencer {
_jack: jack.clone(), _jack: jack.clone(),
clock: player.clock.clone(), clock: player.clock.clone(),
@ -130,9 +103,7 @@ pub fn main () -> Usually<()> {
} }
}))?)?, }))?)?,
TekMode::Sampler { TekMode::Sampler => engine.run(&jack.activate_with(|jack|Ok(
midi_from, l_from, r_from, l_to, r_to, ..
} => engine.run(&jack.activate_with(|jack|Ok(
SamplerTui { SamplerTui {
cursor: (0, 0), cursor: (0, 0),
editing: None, editing: None,
@ -141,53 +112,29 @@ pub fn main () -> Usually<()> {
note_lo: 36.into(), note_lo: 36.into(),
note_pt: 36.into(), note_pt: 36.into(),
color: ItemPalette::from(Color::Rgb(64, 128, 32)), color: ItemPalette::from(Color::Rgb(64, 128, 32)),
state: Sampler::new(jack, &"sampler", state: Sampler::new(jack, &"sampler", &midi_froms, &[&l_from, &r_from], &[&l_to, &r_to])?,
&midi_from,
&[&l_from, &r_from],
&[&l_to, &r_to],
)?,
} }
))?)?, ))?)?,
TekMode::Groovebox { TekMode::Groovebox => engine.run(&jack.activate_with(|jack|Ok({
midi_from, midi_to, l_from, r_from, l_to, r_to, .. let length = 384;
} => engine.run(&jack.activate_with(|jack|Ok({ let color = Some(ItemColor::random().into());
let ppq = 96; let clip = Arc::new(RwLock::new(MidiClip::new("Clip", true, length, None, color)));
let phrase = Arc::new(RwLock::new(MidiClip::new( let mut player = MidiPlayer::new(jack, &"sequencer", Some(&clip), &midi_froms, &midi_tos)?;
"Clip", let sampler = Sampler::new(jack, &"sampler", &midi_froms, &[&l_from, &r_from], &[&l_to, &r_to])?;
true, jack.read().unwrap().client().connect_ports(&player.midi_outs[0].port, &sampler.midi_in.port)?;
4 * ppq,
None,
Some(ItemColor::random().into())
)));
let mut player = MidiPlayer::new(jack, &"sequencer", Some(&phrase),
&midi_from,
&midi_to
)?;
player.play_phrase = Some((Moment::zero(&player.clock.timebase), Some(phrase.clone())));
let sampler = Sampler::new(jack, &"sampler",
&midi_from,
&[&l_from, &r_from],
&[&l_to, &r_to ],
)?;
jack.read().unwrap().client().connect_ports(
&player.midi_outs[0],
&sampler.midi_in
)?;
let app = Groovebox { let app = Groovebox {
player, player,
sampler, sampler,
_jack: jack.clone(), pool: PoolModel::from(&clip),
editor: MidiEditor::from(&clip),
pool: PoolModel::from(&phrase),
editor: MidiEditor::from(&phrase),
compact: true, compact: true,
status: true, status: true,
size: Measure::new(), size: Measure::new(),
midi_buf: vec![vec![];65536], midi_buf: vec![vec![];65536],
note_buf: vec![], note_buf: vec![],
perf: PerfModel::default(), perf: PerfModel::default(),
_jack: jack.clone(),
}; };
if let Some(bpm) = cli.bpm { if let Some(bpm) = cli.bpm {
app.clock().timebase.bpm.set(bpm); app.clock().timebase.bpm.set(bpm);
@ -207,14 +154,13 @@ pub fn main () -> Usually<()> {
app app
}))?)?, }))?)?,
TekMode::Arranger { TekMode::Arranger { scenes, tracks, track_width, .. } =>
scenes, tracks, track_width, midi_from, midi_to, .. engine.run(&jack.activate_with(|jack|Ok({
} => engine.run(&jack.activate_with(|jack|Ok({ let mut app = Arranger::new(jack);
let mut app = Arranger::new(jack); app.tracks_add(tracks, track_width, &midi_froms, &midi_tos)?;
app.tracks_add(tracks, track_width, midi_from.as_slice(), midi_to.as_slice())?; app.scenes_add(scenes)?;
app.scenes_add(scenes)?; app
app }))?)?,
}))?)?,
_ => todo!() _ => todo!()
}) })

View file

@ -37,13 +37,9 @@ impl Arranger {
let color = track_color_1.mix(track_color_2, i as f32 / count as f32).into(); let color = track_color_1.mix(track_color_2, i as f32 / count as f32).into();
let mut track = self.track_add(None, Some(color))?; let mut track = self.track_add(None, Some(color))?;
track.width = width; track.width = width;
let port = JackPort::<MidiIn>::new(&jack, &format!("{}I", &track.name), &[])?;
let name = &format!("{}I", &track.name);
let port = jack.read().unwrap().client().register_port(&name, MidiIn::default())?;
track.player.midi_ins.push(port); track.player.midi_ins.push(port);
let port = JackPort::<MidiOut>::new(&jack, &format!("{}O", &track.name), &[])?;
let name = &format!("{}O", &track.name);
let port = jack.read().unwrap().client().register_port(&name, MidiOut::default())?;
track.player.midi_outs.push(port); track.player.midi_outs.push(port);
} }
for connection in midi_from.iter() { for connection in midi_from.iter() {
@ -51,14 +47,14 @@ impl Arranger {
let number = split.next().unwrap().trim(); let number = split.next().unwrap().trim();
if let Ok(track) = number.parse::<usize>() { if let Ok(track) = number.parse::<usize>() {
if track < 1 { if track < 1 {
panic!("Tracks are zero-indexed") panic!("Tracks start from 1")
} }
if track > count { if track > count {
panic!("Tried to connect track {track} or {count}. Pass -t {track} to increase number of tracks.") panic!("Tried to connect track {track} or {count}. Pass -t {track} to increase number of tracks.")
} }
if let Some(port) = split.next() { if let Some(port) = split.next() {
if let Some(port) = jack.read().unwrap().client().port_by_name(port).as_ref() { if let Some(port) = jack.read().unwrap().client().port_by_name(port).as_ref() {
jack.read().unwrap().client().connect_ports(port, &self.tracks[track-1].player.midi_ins[0])?; //jack.read().unwrap().client().connect_ports(port, &self.tracks[track-1].player.midi_ins[0])?;
} else { } else {
panic!("Missing MIDI output: {port}. Use jack_lsp to list all port names."); panic!("Missing MIDI output: {port}. Use jack_lsp to list all port names.");
} }
@ -74,14 +70,14 @@ impl Arranger {
let number = split.next().unwrap().trim(); let number = split.next().unwrap().trim();
if let Ok(track) = number.parse::<usize>() { if let Ok(track) = number.parse::<usize>() {
if track < 1 { if track < 1 {
panic!("Tracks are zero-indexed") panic!("Tracks start from 1")
} }
if track > count { if track > count {
panic!("Tried to connect track {track} or {count}. Pass -t {track} to increase number of tracks.") panic!("Tried to connect track {track} or {count}. Pass -t {track} to increase number of tracks.")
} }
if let Some(port) = split.next() { if let Some(port) = split.next() {
if let Some(port) = jack.read().unwrap().client().port_by_name(port).as_ref() { if let Some(port) = jack.read().unwrap().client().port_by_name(port).as_ref() {
jack.read().unwrap().client().connect_ports(&self.tracks[track-1].player.midi_outs[0], port)?; //jack.read().unwrap().client().connect_ports(&self.tracks[track-1].player.midi_outs[0], port)?;
} else { } else {
panic!("Missing MIDI input: {port}. Use jack_lsp to list all port names."); panic!("Missing MIDI input: {port}. Use jack_lsp to list all port names.");
} }

View file

@ -38,7 +38,7 @@ audio!(|self: Groovebox, client, scope|{
return Control::Quit return Control::Quit
} }
// TODO move these to editor and sampler: // TODO move these to editor and sampler:
for RawMidi { time, bytes } in self.player.midi_ins[0].iter(scope) { for RawMidi { time, bytes } in self.player.midi_ins[0].port.iter(scope) {
if let LiveEvent::Midi { message, .. } = LiveEvent::parse(bytes).unwrap() { if let LiveEvent::Midi { message, .. } = LiveEvent::parse(bytes).unwrap() {
match message { match message {
MidiMessage::NoteOn { ref key, .. } => { MidiMessage::NoteOn { ref key, .. } => {

View file

@ -2,12 +2,10 @@ mod sample; pub use self::sample::*;
mod sample_import; pub use self::sample_import::*; mod sample_import; pub use self::sample_import::*;
mod sample_list; pub use self::sample_list::*; mod sample_list; pub use self::sample_list::*;
mod sample_viewer; pub use self::sample_viewer::*; mod sample_viewer; pub use self::sample_viewer::*;
mod sampler_audio; pub use self::sampler_audio::*;
mod sampler_command; pub use self::sampler_command::*; mod sampler_command; pub use self::sampler_command::*;
mod sampler_status; pub use self::sampler_status::*; mod sampler_status; pub use self::sampler_status::*;
mod sampler_tui; pub use self::sampler_tui::*; mod sampler_tui; pub use self::sampler_tui::*;
mod voice; pub use self::voice::*; mod voice; pub use self::voice::*;
use crate::*; use crate::*;
use KeyCode::Char; use KeyCode::Char;
use std::fs::File; use std::fs::File;
@ -23,7 +21,6 @@ use symphonia::{
default::get_codecs, default::get_codecs,
}; };
/// The sampler plugin plays sounds. /// The sampler plugin plays sounds.
#[derive(Debug)] #[derive(Debug)]
pub struct Sampler { pub struct Sampler {
@ -33,10 +30,10 @@ pub struct Sampler {
pub recording: Option<(usize, Arc<RwLock<Sample>>)>, pub recording: Option<(usize, Arc<RwLock<Sample>>)>,
pub unmapped: Vec<Arc<RwLock<Sample>>>, pub unmapped: Vec<Arc<RwLock<Sample>>>,
pub voices: Arc<RwLock<Vec<Voice>>>, pub voices: Arc<RwLock<Vec<Voice>>>,
pub midi_in: Port<MidiIn>, pub midi_in: JackPort<MidiIn>,
pub audio_ins: Vec<Port<AudioIn>>, pub audio_ins: Vec<JackPort<AudioIn>>,
pub input_meter: Vec<f32>, pub input_meter: Vec<f32>,
pub audio_outs: Vec<Port<AudioOut>>, pub audio_outs: Vec<JackPort<AudioOut>>,
pub buffer: Vec<Vec<f32>>, pub buffer: Vec<Vec<f32>>,
pub output_gain: f32 pub output_gain: f32
} }
@ -44,21 +41,21 @@ impl Sampler {
pub fn new ( pub fn new (
jack: &Arc<RwLock<JackConnection>>, jack: &Arc<RwLock<JackConnection>>,
name: impl AsRef<str>, name: impl AsRef<str>,
midi_from: &[impl AsRef<str>], midi_from: &[PortConnection],
audio_from: &[&[impl AsRef<str>];2], audio_from: &[&[PortConnection];2],
audio_to: &[&[impl AsRef<str>];2], audio_to: &[&[PortConnection];2],
) -> Usually<Self> { ) -> Usually<Self> {
let name = name.as_ref(); let name = name.as_ref();
Ok(Self { Ok(Self {
midi_in: jack.midi_in(&format!("M/{name}"), midi_from)?, midi_in: JackPort::<MidiIn>::new(jack, format!("M/{name}"), midi_from)?,
audio_ins: vec![ audio_ins: vec![
jack.audio_in(&format!("L/{name}"), audio_from[0])?, JackPort::<AudioIn>::new(jack, &format!("L/{name}"), audio_from[0])?,
jack.audio_in(&format!("R/{name}"), audio_from[1])? JackPort::<AudioIn>::new(jack, &format!("R/{name}"), audio_from[1])?,
], ],
input_meter: vec![0.0;2], input_meter: vec![0.0;2],
audio_outs: vec![ audio_outs: vec![
jack.audio_out(&format!("{name}/L"), audio_to[0])?, JackPort::<AudioOut>::new(jack, &format!("{name}/L"), audio_to[0])?,
jack.audio_out(&format!("{name}/R"), audio_to[1])?, JackPort::<AudioOut>::new(jack, &format!("{name}/R"), audio_to[1])?,
], ],
jack: jack.clone(), jack: jack.clone(),
name: name.into(), name: name.into(),
@ -91,6 +88,120 @@ impl Sampler {
} }
} }
audio!(|self: SamplerTui, client, scope|{
SamplerAudio(&mut self.state).process(client, scope)
});
pub struct SamplerAudio<'a>(pub &'a mut Sampler);
audio!(|self: SamplerAudio<'a>, _client, scope|{
self.0.process_midi_in(scope);
self.0.clear_output_buffer();
self.0.process_audio_out(scope);
self.0.write_output_buffer(scope);
self.0.process_audio_in(scope);
Control::Continue
});
impl Sampler {
pub fn process_audio_in (&mut self, scope: &ProcessScope) {
let Sampler { audio_ins, input_meter, recording, .. } = self;
if audio_ins.len() != input_meter.len() {
*input_meter = vec![0.0;audio_ins.len()];
}
if let Some((_, sample)) = recording {
let mut sample = sample.write().unwrap();
if sample.channels.len() != audio_ins.len() {
panic!("channel count mismatch");
}
let iterator = audio_ins.iter().zip(input_meter).zip(sample.channels.iter_mut());
let mut length = 0;
for ((input, meter), channel) in iterator {
let slice = input.port.as_slice(scope);
length = length.max(slice.len());
let total: f32 = slice.iter().map(|x|x.abs()).sum();
let count = slice.len() as f32;
*meter = 10. * (total / count).log10();
channel.extend_from_slice(slice);
}
sample.end += length;
} else {
for (input, meter) in audio_ins.iter().zip(input_meter) {
let slice = input.port.as_slice(scope);
let total: f32 = slice.iter().map(|x|x.abs()).sum();
let count = slice.len() as f32;
*meter = 10. * (total / count).log10();
}
}
}
/// Create [Voice]s from [Sample]s in response to MIDI input.
pub fn process_midi_in (&mut self, scope: &ProcessScope) {
let Sampler { midi_in, mapped, voices, .. } = self;
for RawMidi { time, bytes } in midi_in.port.iter(scope) {
if let LiveEvent::Midi { message, .. } = LiveEvent::parse(bytes).unwrap() {
match message {
MidiMessage::NoteOn { ref key, ref vel } => {
if let Some(ref sample) = mapped[key.as_int() as usize] {
voices.write().unwrap().push(Sample::play(sample, time as usize, vel));
}
},
MidiMessage::Controller { controller, value } => {
// TODO
}
_ => {}
}
}
}
}
/// Zero the output buffer.
pub fn clear_output_buffer (&mut self) {
for buffer in self.buffer.iter_mut() {
buffer.fill(0.0);
}
}
/// Mix all currently playing samples into the output.
pub fn process_audio_out (&mut self, scope: &ProcessScope) {
let Sampler { ref mut buffer, voices, output_gain, .. } = self;
let channel_count = buffer.len();
voices.write().unwrap().retain_mut(|voice|{
for index in 0..scope.n_frames() as usize {
if let Some(frame) = voice.next() {
for (channel, sample) in frame.iter().enumerate() {
// Averaging mixer:
//self.buffer[channel % channel_count][index] = (
//(self.buffer[channel % channel_count][index] + sample * self.output_gain) / 2.0
//);
buffer[channel % channel_count][index] += sample * *output_gain;
}
} else {
return false
}
}
true
});
}
/// Write output buffer to output ports.
pub fn write_output_buffer (&mut self, scope: &ProcessScope) {
let Sampler { ref mut audio_outs, buffer, .. } = self;
for (i, port) in audio_outs.iter_mut().enumerate() {
let buffer = &buffer[i];
for (i, value) in port.port.as_mut_slice(scope).iter_mut().enumerate() {
*value = *buffer.get(i).unwrap_or(&0.0);
}
}
}
}
///////////////////////////////////////////////////////////////////////////////////////////////////
type MidiSample = (Option<u7>, Arc<RwLock<crate::Sample>>);
from_edn!("sampler" => |jack: &Arc<RwLock<JackConnection>>, args| -> crate::Sampler { from_edn!("sampler" => |jack: &Arc<RwLock<JackConnection>>, args| -> crate::Sampler {
let mut name = String::new(); let mut name = String::new();
let mut dir = String::new(); let mut dir = String::new();
@ -120,8 +231,6 @@ from_edn!("sampler" => |jack: &Arc<RwLock<JackConnection>>, args| -> crate::Samp
Self::new(jack, &name) Self::new(jack, &name)
}); });
type MidiSample = (Option<u7>, Arc<RwLock<crate::Sample>>);
from_edn!("sample" => |(_jack, dir): (&Arc<RwLock<JackConnection>>, &str), args| -> MidiSample { from_edn!("sample" => |(_jack, dir): (&Arc<RwLock<JackConnection>>, &str), args| -> MidiSample {
let mut name = String::new(); let mut name = String::new();
let mut file = String::new(); let mut file = String::new();

View file

@ -1,111 +0,0 @@
use crate::*;
audio!(|self: SamplerTui, client, scope|{
SamplerAudio(&mut self.state).process(client, scope)
});
pub struct SamplerAudio<'a>(pub &'a mut Sampler);
audio!(|self: SamplerAudio<'a>, _client, scope|{
self.0.process_midi_in(scope);
self.0.clear_output_buffer();
self.0.process_audio_out(scope);
self.0.write_output_buffer(scope);
self.0.process_audio_in(scope);
Control::Continue
});
impl Sampler {
pub fn process_audio_in (&mut self, scope: &ProcessScope) {
let Sampler { audio_ins, input_meter, recording, .. } = self;
if audio_ins.len() != input_meter.len() {
*input_meter = vec![0.0;audio_ins.len()];
}
if let Some((_, sample)) = recording {
let mut sample = sample.write().unwrap();
if sample.channels.len() != audio_ins.len() {
panic!("channel count mismatch");
}
let iterator = audio_ins.iter().zip(input_meter).zip(sample.channels.iter_mut());
let mut length = 0;
for ((input, meter), channel) in iterator {
let slice = input.as_slice(scope);
length = length.max(slice.len());
let total: f32 = slice.iter().map(|x|x.abs()).sum();
let count = slice.len() as f32;
*meter = 10. * (total / count).log10();
channel.extend_from_slice(slice);
}
sample.end += length;
} else {
for (input, meter) in audio_ins.iter().zip(input_meter) {
let slice = input.as_slice(scope);
let total: f32 = slice.iter().map(|x|x.abs()).sum();
let count = slice.len() as f32;
*meter = 10. * (total / count).log10();
}
}
}
/// Create [Voice]s from [Sample]s in response to MIDI input.
pub fn process_midi_in (&mut self, scope: &ProcessScope) {
let Sampler { midi_in, mapped, voices, .. } = self;
for RawMidi { time, bytes } in midi_in.iter(scope) {
if let LiveEvent::Midi { message, .. } = LiveEvent::parse(bytes).unwrap() {
match message {
MidiMessage::NoteOn { ref key, ref vel } => {
if let Some(ref sample) = mapped[key.as_int() as usize] {
voices.write().unwrap().push(Sample::play(sample, time as usize, vel));
}
},
MidiMessage::Controller { controller, value } => {
// TODO
}
_ => {}
}
}
}
}
/// Zero the output buffer.
pub fn clear_output_buffer (&mut self) {
for buffer in self.buffer.iter_mut() {
buffer.fill(0.0);
}
}
/// Mix all currently playing samples into the output.
pub fn process_audio_out (&mut self, scope: &ProcessScope) {
let Sampler { ref mut buffer, voices, output_gain, .. } = self;
let channel_count = buffer.len();
voices.write().unwrap().retain_mut(|voice|{
for index in 0..scope.n_frames() as usize {
if let Some(frame) = voice.next() {
for (channel, sample) in frame.iter().enumerate() {
// Averaging mixer:
//self.buffer[channel % channel_count][index] = (
//(self.buffer[channel % channel_count][index] + sample * self.output_gain) / 2.0
//);
buffer[channel % channel_count][index] += sample * *output_gain;
}
} else {
return false
}
}
true
});
}
/// Write output buffer to output ports.
pub fn write_output_buffer (&mut self, scope: &ProcessScope) {
let Sampler { ref mut audio_outs, buffer, .. } = self;
for (i, port) in audio_outs.iter_mut().enumerate() {
let buffer = &buffer[i];
for (i, value) in port.as_mut_slice(scope).iter_mut().enumerate() {
*value = *buffer.get(i).unwrap_or(&0.0);
}
}
}
}