51 lines
1.4 KiB
Rust
51 lines
1.4 KiB
Rust
use itertools::Itertools;
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mod flags;
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mod syn;
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mod tone;
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mod seq;
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fn main() {
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let flags = flags::Flags::new();
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let mut syn_seq = seq::new_syn(syn::Syn::new(
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flags.debug,
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flags.sound_font,
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flags.sample_rate,
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));
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syn_seq.append(1, "3c1");
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if let Some(play) = flags.play {
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syn_seq.append(0, play);
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}
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play(syn_seq, flags.sample_rate, flags.bpm);
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}
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fn play(mut s: seq::SynSeq, sample_rate: usize, bpm: usize) {
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let samples_per_beat = sample_rate / bpm * 60;
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let params = tinyaudio::prelude::OutputDeviceParameters {
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channels_count: 2,
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sample_rate: sample_rate,
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channel_sample_count: samples_per_beat,
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};
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let beats = s.beats() + 3;
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let duration = 60 * beats / bpm;
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let sample_count = (params.channel_sample_count) as usize;
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let mut left: Vec<f32> = vec![0_f32; sample_count];
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let mut right: Vec<f32> = vec![0_f32; sample_count];
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let _device = tinyaudio::prelude::run_output_device(params, {
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move |data| {
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s.render(&mut left[..], &mut right[..]); // put in a state of rendering the next loop of these notes
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for (i, value) in left.iter().interleave(right.iter()).enumerate() {
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data[i] = *value;
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}
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}
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})
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.unwrap();
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// Wait it out
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std::thread::sleep(std::time::Duration::from_secs(duration as u64));
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}
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