Add basic MIDI device selection using midir
This commit is contained in:
Robbert van der Helm
parent
98b8571dc9
commit
2ed95bb52d
66
Cargo.lock
generated
66
Cargo.lock
generated
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@ -89,6 +89,18 @@ dependencies = [
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"nix 0.23.2",
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]
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[[package]]
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name = "alsa"
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version = "0.7.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "8512c9117059663fb5606788fbca3619e2a91dac0e3fe516242eab1fa6be5e44"
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dependencies = [
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"alsa-sys",
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"bitflags",
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"libc",
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"nix 0.24.3",
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]
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[[package]]
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name = "alsa-sys"
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version = "0.3.1"
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@ -856,6 +868,26 @@ dependencies = [
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"bindgen",
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]
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[[package]]
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name = "coremidi"
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version = "0.6.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "1a7847ca018a67204508b77cb9e6de670125075f7464fff5f673023378fa34f5"
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dependencies = [
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"core-foundation",
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"core-foundation-sys",
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"coremidi-sys",
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]
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[[package]]
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name = "coremidi-sys"
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version = "3.1.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "79a6deed0c97b2d40abbab77e4c97f81d71e162600423382c277dd640019116c"
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dependencies = [
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"core-foundation-sys",
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]
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[[package]]
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name = "cosmic-text"
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version = "0.6.0"
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@ -881,7 +913,7 @@ version = "0.14.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "f342c1b63e185e9953584ff2199726bf53850d96610a310e3aca09e9405a2d0b"
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dependencies = [
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"alsa",
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"alsa 0.6.0",
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"core-foundation-sys",
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"coreaudio-rs",
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"jni",
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@ -2252,6 +2284,22 @@ dependencies = [
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"nih_plug",
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]
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[[package]]
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name = "midir"
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version = "0.9.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "a456444d83e7ead06ae6a5c0a215ed70282947ff3897fb45fcb052b757284731"
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dependencies = [
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"alsa 0.7.0",
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"bitflags",
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"coremidi",
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"js-sys",
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"libc",
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"wasm-bindgen",
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"web-sys",
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"windows 0.43.0",
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]
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[[package]]
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name = "minimal-lexical"
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version = "0.2.1"
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@ -2363,6 +2411,7 @@ dependencies = [
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"libc",
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"log",
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"midi-consts",
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"midir",
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"nih_plug_derive",
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"objc",
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"parking_lot 0.12.1",
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@ -4564,6 +4613,21 @@ dependencies = [
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"windows_x86_64_msvc 0.37.0",
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]
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[[package]]
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name = "windows"
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version = "0.43.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "04662ed0e3e5630dfa9b26e4cb823b817f1a9addda855d973a9458c236556244"
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dependencies = [
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"windows_aarch64_gnullvm",
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"windows_aarch64_msvc 0.42.1",
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"windows_i686_gnu 0.42.1",
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"windows_i686_msvc 0.42.1",
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"windows_x86_64_gnu 0.42.1",
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"windows_x86_64_gnullvm",
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"windows_x86_64_msvc 0.42.1",
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]
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[[package]]
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name = "windows-sys"
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version = "0.42.0"
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@ -52,7 +52,7 @@ assert_process_allocs = ["dep:assert_no_alloc"]
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# Enables an export target for standalone binaries through the
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# `nih_export_standalone()` function. Disabled by default as this requires
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# building additional dependencies for audio and MIDI handling.
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standalone = ["dep:baseview", "dep:clap", "dep:cpal", "dep:jack", "dep:rtrb"]
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standalone = ["dep:baseview", "dep:clap", "dep:cpal", "dep:jack", "dep:midir", "dep:rtrb"]
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# Enables the `nih_export_vst3!()` macro. Enabled by default. This feature
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# exists mostly for GPL-compliance reasons, since even if you don't use the VST3
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# wrapper you might otherwise still include a couple (unused) symbols from the
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@ -113,6 +113,7 @@ cpal = { version = "0.14.1", optional = true }
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# Current upstream JACK always links to libjack, even when using the default
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# dynamic loading feature
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jack = { git = "https://github.com/robbert-vdh/rust-jack.git", tag = "tmp-handle-library-failure", optional = true }
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midir = { version = "0.9.1", optional = true }
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rtrb = { version = "0.2.2", optional = true }
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# Used for the `vst3` feature
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@ -6,6 +6,8 @@ use cpal::{
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StreamConfig,
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};
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use crossbeam::sync::{Parker, Unparker};
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use midir::{MidiInput, MidiInputPort, MidiOutput, MidiOutputPort};
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use parking_lot::Mutex;
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use rtrb::RingBuffer;
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use super::super::config::WrapperConfig;
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@ -24,7 +26,9 @@ pub struct CpalMidir {
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input: Option<CpalDevice>,
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output: CpalDevice,
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// TODO: MIDI
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midi_input: Option<Mutex<MidirInputDevice>>,
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midi_output: Option<Mutex<(MidirOutputDevice)>>,
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}
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/// All data needed for a CPAL input or output stream.
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struct CpalDevice {
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@ -33,6 +37,20 @@ struct CpalDevice {
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pub sample_format: SampleFormat,
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}
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/// All data needed to create a Midir input stream.
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struct MidirInputDevice {
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pub backend: MidiInput,
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pub port: MidiInputPort,
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// The name can be retrieved from the port, not sure why the connect function needs the name
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// again
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}
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/// All data needed to create a Midir output stream.
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struct MidirOutputDevice {
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pub backend: MidiOutput,
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pub port: MidiOutputPort,
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}
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impl<P: Plugin> Backend<P> for CpalMidir {
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fn run(
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&mut self,
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@ -311,12 +329,97 @@ impl CpalMidir {
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nih_warn!("Auxiliary outputs are not supported with this audio backend");
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}
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let midi_input = match &config.midi_input {
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Some(midi_input_name) => {
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// Midir lets us preemptively ignore MIDI messages we'll never use like active
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// sensing and timing, but for maximum flexibility with NIH-plug's SysEx parsing
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// types (which could technically be used to also parse those things) we won't do
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// that.
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let midi_backend = MidiInput::new(P::NAME)
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.context("Could not initialize the MIDI input backend")?;
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let available_ports = midi_backend.ports();
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// In case there somehow is a MIDI port with an empty name, we'll still want to
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// preserve the behavior of an empty argument resulting in a listing of options.
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let found_port = if !midi_input_name.is_empty() {
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// This API is a bit weird
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available_ports
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.iter()
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.find(|port| midi_backend.port_name(port).as_deref() == Ok(midi_input_name))
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} else {
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None
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};
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match found_port {
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Some(port) => Some(Mutex::new(MidirInputDevice {
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backend: midi_backend,
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port: port.clone(),
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})),
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None => {
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let mut message = format!(
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"Unknown input MIDI device '{midi_input_name}'. Available devices are:"
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);
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for port in available_ports {
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match midi_backend.port_name(&port) {
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Ok(device_name) => message.push_str(&format!("\n{device_name}")),
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Err(err) => message.push_str(&format!("\nERROR: {err:?}")),
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}
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}
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anyhow::bail!(message);
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}
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}
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}
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None => None,
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};
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let midi_output = match &config.midi_output {
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Some(midi_output_name) => {
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let midi_backend = MidiOutput::new(P::NAME)
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.context("Could not initialize the MIDI output backend")?;
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let available_ports = midi_backend.ports();
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let found_port = if !midi_output_name.is_empty() {
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available_ports.iter().find(|port| {
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midi_backend.port_name(port).as_deref() == Ok(midi_output_name)
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})
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} else {
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None
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};
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match found_port {
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Some(port) => Some(Mutex::new(MidirOutputDevice {
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backend: midi_backend,
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port: port.clone(),
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})),
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None => {
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let mut message = format!(
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"Unknown output MIDI device '{midi_output_name}'. Available devices \
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are:"
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);
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for port in available_ports {
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match midi_backend.port_name(&port) {
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Ok(device_name) => message.push_str(&format!("\n{device_name}")),
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Err(err) => message.push_str(&format!("\nERROR: {err:?}")),
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}
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}
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anyhow::bail!(message);
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}
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}
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}
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None => None,
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};
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Ok(CpalMidir {
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config,
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audio_io_layout,
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input,
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output,
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midi_input,
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midi_output,
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})
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}
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