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extern crate cpal;
use std::io::Write;
//use cpal::traits::{HostTrait, DeviceTrait, StreamTrait};
mod midi_input;
fn main() {
let mut device_mgr = midi_input::DeviceManager::new().expect("Couldn't create device manager");
device_mgr.set_quiet(true);
let devices = device_mgr.list().expect("couldn't list MIDI devices");
for (index, device) in (&devices).into_iter().enumerate() {
print!("{:3} | ", index + 1);
let mut first = true;
for line in device.name.lines() {
if !first {
print!(" | ");
}
println!("{}", line);
first = false;
}
println!(" -----------------");
}
print!("Select a device (default {}): ", devices.default + 1);
if std::io::stdout().flush().is_err() {
//who cares
}
let device_id;
{
let mut buf = String::new();
std::io::stdin()
.read_line(&mut buf)
.expect("error reading stdin");
let s = buf.trim();
if s.is_empty() {
device_id = &devices[devices.default].id;
} else {
match s.parse::<usize>() {
Ok(idx) if idx >= 1 && idx <= devices.len() => {
device_id = &devices[idx - 1].id;
}
_ => {
eprintln!("Bad device ID: {}", s);
return;
}
}
}
}
let mut device = device_mgr.open(device_id)
.expect("error opening MIDI device");
while device.is_connected() {
let maybe_event = device.read_event();
if let Some(event) = maybe_event {
println!("{:?}", event);
} else {
std::thread::sleep(std::time::Duration::from_millis(10));
}
if let Some(err) = device.get_error() {
eprintln!("Error: {}", err);
device.clear_error();
}
}
/*
let host = cpal::default_host();
let device = host.default_output_device().expect("no output device available");
let mut supported_configs_range = device.supported_output_configs()
.expect("error while querying configs");
let config = supported_configs_range.next()
.expect("no supported config?!")
.with_max_sample_rate()
.into();
let stream = device.build_output_stream(
&config,
move |data: &mut [i16], _: &cpal::OutputCallbackInfo| {
for sample in data.iter_mut() {
*sample = 0;
}
},
move |err| {
println!("audio stream error: {}", err);
},
).expect("couldn't build output stream");
stream.play().expect("couldn't play stream");
loop {
std::thread::sleep(std::time::Duration::from_millis(100));
}
*/
}
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