85 lines
2.2 KiB
Rust
85 lines
2.2 KiB
Rust
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#![allow(incomplete_features)]
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#![feature(generic_associated_types)]
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use baseplug::{event::Data, Event, MidiReceiver, 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 VelociterModel {
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#[model(min = 0.0, max = 127.9)]
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#[parameter(name = "min_vel")]
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min_vel: f32,
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#[model(min = 0.0, max = 127.9)]
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#[parameter(name = "max_vel")]
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max_vel: f32,
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}
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}
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impl Default for VelociterModel {
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fn default() -> Self {
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Self {
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min_vel: 0.0,
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max_vel: 127.9,
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}
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}
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}
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struct Velociter {
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notes: Vec<[u8; 3]>,
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}
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impl Plugin for Velociter {
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const NAME: &'static str = "velociter";
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const PRODUCT: &'static str = "velociter";
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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 = VelociterModel;
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#[inline]
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fn new(_sample_rate: f32, _model: &VelociterModel) -> Self {
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Self {
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notes: Vec::with_capacity(300),
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}
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}
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#[inline]
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fn process(&mut self, model: &VelociterModelProcess, 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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let enqueue_midi = &mut ctx.enqueue_event;
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use rand::{thread_rng, Rng};
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let mut rng = thread_rng();
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for i in 0..ctx.nframes {
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output[0][i] = input[0][i];
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output[1][i] = input[1][i];
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let min = model.min_vel[i];
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let max = model.max_vel[i];
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// make sure they're right
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let (min, max) = (min.min(max), max.max(min));
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for mut note in self.notes.drain(0..) {
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note[2] = rng.gen_range(min..max).trunc() as u8;
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let note = Event::<Velociter> {
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frame: 0,
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data: Data::Midi(note),
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};
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enqueue_midi(note);
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}
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}
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}
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}
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impl MidiReceiver for Velociter {
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fn midi_input(&mut self, _model: &VelociterModelProcess, data: [u8; 3]) {
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self.notes.push(data);
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}
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}
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baseplug::vst2!(Velociter, b"tAnE");
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