67 lines
1.6 KiB
Rust
67 lines
1.6 KiB
Rust
#![allow(incomplete_features)]
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#![feature(generic_associated_types)]
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use baseplug::{Plugin, ProcessContext};
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use serde::{Deserialize, Serialize};
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baseplug::model! {
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#[derive(Debug, Serialize, Deserialize)]
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struct BistortionModel {
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#[model(min = 0.0, max = 10.0)]
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#[parameter(name = "a")]
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a: f32,
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#[model(min = 0.0, max = 30.0)]
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#[parameter(name = "b")]
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b: f32,
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}
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}
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impl Default for BistortionModel {
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fn default() -> Self {
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Self { a: 1.0, b: 1.0 }
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}
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}
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struct Bistortion {
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frame: usize,
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}
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impl Plugin for Bistortion {
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const NAME: &'static str = "bistortion";
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const PRODUCT: &'static str = "bistortion";
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const VENDOR: &'static str = "unnieversal";
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const INPUT_CHANNELS: usize = 2;
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const OUTPUT_CHANNELS: usize = 2;
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type Model = BistortionModel;
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#[inline]
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fn new(_sample_rate: f32, _model: &BistortionModel) -> Self {
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Self { frame: 0 }
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}
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#[inline]
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fn process(&mut self, model: &BistortionModelProcess, ctx: &mut ProcessContext<Self>) {
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let input = &ctx.inputs[0].buffers;
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let output = &mut ctx.outputs[0].buffers;
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for i in 0..ctx.nframes {
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let a = model.a[i];
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let b = model.b[i];
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let p = self.frame as f32 / ctx.sample_rate;
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output[0][i] = process(input[0][i], p, a, b);
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output[1][i] = process(input[1][i], p, a, b);
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self.frame += 1;
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}
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}
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}
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// https://www.desmos.com/calculator/8gmb283p0v
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fn process(v: f32, p: f32, a: f32, b: f32) -> f32 {
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(v * a * (b * v).cos()).tanh()
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}
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baseplug::vst2!(Bistortion, b"bist");
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