forked from mirrors/gecko-dev
ee6325f662
This is as close to usptream as currently possibly. Only a few changes were done to the dependencies: the wasm target was removed and the coremidi dependency was updated to pick up a more recent version so that we don't need to vendor separate versions of the core-foundation and core-foundation-sys crates. This vendors the following crates: * alsa-sys * alsa * coremidi * coremidi-sys * memalloc * midir Overall this adds ~30K lines of code, over half of which is in the alsa bindings alone. Differential Revision: https://phabricator.services.mozilla.com/D124640
82 lines
2.8 KiB
Rust
82 lines
2.8 KiB
Rust
extern crate midir;
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use std::thread::sleep;
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use std::time::Duration;
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use std::io::{stdin, stdout, Write};
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use std::error::Error;
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use midir::{MidiInput, MidiOutput, Ignore};
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fn main() {
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match run() {
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Ok(_) => (),
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Err(err) => println!("Error: {}", err)
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}
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}
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fn run() -> Result<(), Box<dyn Error>> {
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let mut input = String::new();
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let mut midi_in = MidiInput::new("My Test Input")?;
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midi_in.ignore(Ignore::None);
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let mut midi_out = MidiOutput::new("My Test Output")?;
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println!("Available input ports:");
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let midi_in_ports = midi_in.ports();
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for (i, p) in midi_in_ports.iter().enumerate() {
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println!("{}: {}", i, midi_in.port_name(p)?);
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}
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print!("Please select input port: ");
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stdout().flush()?;
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stdin().read_line(&mut input)?;
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let in_port = midi_in_ports.get(input.trim().parse::<usize>()?)
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.ok_or("Invalid port number")?;
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println!("\nAvailable output ports:");
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let midi_out_ports = midi_out.ports();
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for (i, p) in midi_out_ports.iter().enumerate() {
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println!("{}: {}", i, midi_out.port_name(p)?);
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}
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print!("Please select output port: ");
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stdout().flush()?;
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input.clear();
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stdin().read_line(&mut input)?;
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let out_port = midi_out_ports.get(input.trim().parse::<usize>()?)
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.ok_or("Invalid port number")?;
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// This shows how to reuse input and output objects:
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// Open/close the connections twice using the same MidiInput/MidiOutput objects
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for _ in 0..2 {
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println!("\nOpening connections");
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let log_all_bytes = Vec::new(); // We use this as an example custom data to pass into the callback
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let conn_in = midi_in.connect(in_port, "midir-test", |stamp, message, log| {
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// The last of the three callback parameters is the object that we pass in as last parameter of `connect`.
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println!("{}: {:?} (len = {})", stamp, message, message.len());
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log.extend_from_slice(message);
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}, log_all_bytes)?;
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// One could get the log back here out of the error
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let mut conn_out = midi_out.connect(out_port, "midir-test")?;
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println!("Connections open, enter `q` to exit ...");
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loop {
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input.clear();
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stdin().read_line(&mut input)?;
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if input.trim() == "q" {
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break;
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} else {
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conn_out.send(&[144, 60, 1])?;
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sleep(Duration::from_millis(200));
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conn_out.send(&[144, 60, 0])?;
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}
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}
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println!("Closing connections");
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let (midi_in_, log_all_bytes) = conn_in.close();
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midi_in = midi_in_;
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midi_out = conn_out.close();
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println!("Connections closed");
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println!("Received bytes: {:?}", log_all_bytes);
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}
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Ok(())
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}
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