inkreas.ing
old school music tracker audio backend
1use std::{
2 num::{NonZero, NonZeroU16},
3 time::Duration,
4};
5
6use cpal::traits::{DeviceTrait, HostTrait};
7use torque_tracker_engine::{
8 file::impulse_format::sample::VibratoWave,
9 manager::{AudioManager, OutputConfig, ToWorkerMsg},
10 project::{
11 event_command::NoteCommand,
12 note_event::{Note, NoteEvent, VolumeEffect},
13 song::{Song, SongOperation},
14 },
15 sample::{Sample, SampleMetaData},
16};
17
18fn main() {
19 let mut manager = AudioManager::new(Song::default());
20 let mut reader = hound::WavReader::open("test-files/770_Hz_Tone.wav").unwrap();
21 let spec = reader.spec();
22 println!("sample specs: {spec:?}");
23 assert!(spec.channels == 1);
24 let sample_data = reader
25 .samples::<i16>()
26 .map(|result| <f32 as dasp::Sample>::from_sample(result.unwrap()));
27 let sample = Sample::new_mono(sample_data);
28 let meta = SampleMetaData {
29 sample_rate: NonZero::new(spec.sample_rate).unwrap(),
30 default_volume: 150,
31 global_volume: 20,
32 default_pan: None,
33 vibrato_speed: 0,
34 vibrato_depth: 0,
35 vibrato_rate: 0,
36 vibrato_waveform: VibratoWave::default(),
37 base_note: Note::new(64).unwrap(),
38 };
39
40 manager
41 .try_edit_song()
42 .unwrap()
43 .apply_operation(SongOperation::SetSample(1, meta, sample))
44 .unwrap();
45
46 let host = cpal::default_host();
47 let default_device = host.default_output_device().unwrap();
48 let default_config = default_device.default_output_config().unwrap();
49 println!("default config {:?}", default_config);
50 println!("device: {:?}", default_device.name());
51 let config = OutputConfig {
52 buffer_size: 2048,
53 channel_count: NonZeroU16::new(2).unwrap(),
54 sample_rate: NonZero::new(default_config.sample_rate().0).unwrap(),
55 };
56
57 let mut audio_callback = manager.get_callback::<f32>(config);
58 let stream = default_device
59 .build_output_stream(
60 &default_config.config(),
61 move |data, _| audio_callback(data),
62 |e| eprintln!("{e:?}"),
63 None,
64 )
65 .unwrap();
66
67 let note_event = NoteEvent {
68 note: Note::new(70).unwrap(),
69 sample_instr: 1,
70 vol: VolumeEffect::None,
71 command: NoteCommand::None,
72 };
73 manager
74 .try_msg_worker(ToWorkerMsg::PlayEvent(note_event))
75 .unwrap();
76 std::thread::sleep(Duration::from_secs(1));
77 manager
78 .try_msg_worker(ToWorkerMsg::PlayEvent(note_event))
79 .unwrap();
80 std::thread::sleep(Duration::from_secs(3));
81 drop(stream);
82 manager.stream_closed();
83}