diff options
Diffstat (limited to 'klangfarbrs')
| -rw-r--r-- | klangfarbrs/Cargo.lock | 671 | ||||
| -rw-r--r-- | klangfarbrs/Cargo.toml | 4 | ||||
| -rw-r--r-- | klangfarbrs/src/lib.rs | 103 |
3 files changed, 776 insertions, 2 deletions
diff --git a/klangfarbrs/Cargo.lock b/klangfarbrs/Cargo.lock index b9942fa..1748209 100644 --- a/klangfarbrs/Cargo.lock +++ b/klangfarbrs/Cargo.lock @@ -14,6 +14,34 @@ dependencies = [ ] [[package]] +name = "alsa" +version = "0.5.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "75c4da790adcb2ce5e758c064b4f3ec17a30349f9961d3e5e6c9688b052a9e18" +dependencies = [ + "alsa-sys", + "bitflags", + "libc", + "nix", +] + +[[package]] +name = "alsa-sys" +version = "0.3.1" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "db8fee663d06c4e303404ef5f40488a53e062f89ba8bfed81f42325aafad1527" +dependencies = [ + "libc", + "pkg-config", +] + +[[package]] +name = "anyhow" +version = "1.0.44" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "61604a8f862e1d5c3229fdd78f8b02c68dcf73a4c4b05fd636d12240aaa242c1" + +[[package]] name = "approx" version = "0.4.0" source = "registry+https://github.com/rust-lang/crates.io-index" @@ -49,9 +77,36 @@ dependencies = [ [[package]] name = "bitflags" -version = "1.3.2" +version = "1.2.1" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "cf1de2fe8c75bc145a2f577add951f8134889b4795d47466a54a5c846d691693" + +[[package]] +name = "bumpalo" +version = "3.7.1" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "d9df67f7bf9ef8498769f994239c45613ef0c5899415fb58e9add412d2c1a538" + +[[package]] +name = "bytes" +version = "1.1.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a" +checksum = "c4872d67bab6358e59559027aa3b9157c53d9358c51423c17554809a8858e0f8" + +[[package]] +name = "cc" +version = "1.0.71" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "79c2681d6594606957bbb8631c4b90a7fcaaa72cdb714743a437b156d6a7eedd" +dependencies = [ + "jobserver", +] + +[[package]] +name = "cesu8" +version = "1.1.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "6d43a04d8753f35258c91f8ec639f792891f748a1edbd759cf1dcea3382ad83c" [[package]] name = "cexpr" @@ -80,6 +135,231 @@ dependencies = [ ] [[package]] +name = "combine" +version = "4.6.1" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "a909e4d93292cd8e9c42e189f61681eff9d67b6541f96b8a1a737f23737bd001" +dependencies = [ + "bytes", + "memchr", +] + +[[package]] +name = "core-foundation-sys" +version = "0.8.3" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "5827cebf4670468b8772dd191856768aedcb1b0278a04f989f7766351917b9dc" + +[[package]] +name = "coreaudio-rs" +version = "0.10.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "11894b20ebfe1ff903cbdc52259693389eea03b94918a2def2c30c3bf227ad88" +dependencies = [ + "bitflags", + "coreaudio-sys", +] + +[[package]] +name = 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+dependencies = [ + "winapi", +] + +[[package]] name = "winapi-x86_64-pc-windows-gnu" version = "0.4.0" source = "registry+https://github.com/rust-lang/crates.io-index" diff --git a/klangfarbrs/Cargo.toml b/klangfarbrs/Cargo.toml index 0496724..14d2e64 100644 --- a/klangfarbrs/Cargo.toml +++ b/klangfarbrs/Cargo.toml @@ -10,3 +10,7 @@ crate-type = ["cdylib"] [dependencies] gdnative = "0.9" +anyhow = "1.0.44" +dasp = "0.11.0" +dasp_signal = "0.11.0" +cpal = "0.13.4" diff --git a/klangfarbrs/src/lib.rs b/klangfarbrs/src/lib.rs index 4843910..f116430 100644 --- a/klangfarbrs/src/lib.rs +++ b/klangfarbrs/src/lib.rs @@ -1,4 +1,10 @@ +use gdnative::api::Resource; use gdnative::prelude::*; +use cpal; +use cpal::traits::{DeviceTrait, HostTrait, StreamTrait}; +use dasp::{Sample}; +use dasp_signal::{self as signal, Signal}; +use std::sync::mpsc; /// The HelloWorld "class" #[derive(NativeClass)] @@ -19,6 +25,103 @@ impl HelloWorld { } } +#[derive(NativeClass)] +#[inherit(Resource)] +pub struct Synth { + frequency: f32 +} + +#[methods] +impl Synth { + #[export] + fn set_freq( + &mut self, + _owner: &Resource, + freq: f32 + ) { + self.frequency = freq; + } + + #[export] + fn _ready(&self, _owner: &Resource) { + let host = cpal::default_host(); + let device = host + .default_output_device() + .expect("failed to find a default output device"); + let config = device.default_output_config(); + + match config.sample_format() { + cpal::SampleFormat::F32 => run::<f32>(&device, &config.into()), + cpal::SampleFormat::I16 => run::<i16>(&device, &config.into()), + cpal::SampleFormat::U16 => run::<u16>(&device, &config.into()), + }; + + (); + } +} + +fn run<T>(device: &cpal::Device, config: &cpal::StreamConfig) -> Result<(), anyhow::Error> +where + T: cpal::Sample, +{ + // Create a signal chain to play back 1 second of each oscillator at A4. + let hz = signal::rate(config.sample_rate.0 as f64).const_hz(440.0); + let one_sec = config.sample_rate.0 as usize; + let mut synth = hz + .clone() + .sine() + .take(one_sec) + .chain(hz.clone().saw().take(one_sec)) + .chain(hz.clone().square().take(one_sec)) + .chain(hz.clone().noise_simplex().take(one_sec)) + .chain(signal::noise(0).take(one_sec)) + .map(|s| s.to_sample::<f32>() * 0.2); + + // A channel for indicating when playback has completed. + let (complete_tx, complete_rx) = mpsc::sync_channel(1); + + // Create and run the stream. + let err_fn = |err| eprintln!("an error occurred on stream: {}", err); + let channels = config.channels as usize; + let stream = device.build_output_stream( + config, + move |data: &mut [T], _: &cpal::OutputCallbackInfo| { + write_data(data, channels, &complete_tx, &mut synth) + }, + err_fn, + )?; + stream.play()?; + + // Wait for playback to complete. + complete_rx.recv().unwrap(); + stream.pause()?; + + Ok(()) +} + +fn write_data<T>( + output: &mut [T], + channels: usize, + complete_tx: &mpsc::SyncSender<()>, + signal: &mut dyn Iterator<Item = f32>, +) where + T: cpal::Sample, +{ + for frame in output.chunks_mut(channels) { + let sample = match signal.next() { + None => { + complete_tx.try_send(()).ok(); + 0.0 + } + Some(sample) => sample, + }; + let value: T = cpal::Sample::from::<f32>(&sample); + for sample in frame.iter_mut() { + *sample = value; + } + } +} + // Function that registers all exposed classes to Godot fn init(handle: InitHandle) { // Register the new `HelloWorld` type we just declared. |