unnieversal/crates/cronchy_bits/src/lib.rs

100 lines
2.7 KiB
Rust

#![allow(incomplete_features)]
#![feature(generic_associated_types)]
use baseplug::{Plugin, ProcessContext};
use serde::{Deserialize, Serialize};
baseplug::model! {
#[derive(Debug, Serialize, Deserialize)]
struct CronchyBitsModel {
#[model(min = 1.0, max = 500.0)]
#[parameter(name = "cronch")]
cronch: f32,
#[model(min = 0.0, max = 1.0)]
#[parameter(name = "kind")]
kind: f32,
}
}
impl Default for CronchyBitsModel {
fn default() -> Self {
Self {
cronch: 500.0,
kind: 0.0,
}
}
}
struct CronchyBits;
impl Plugin for CronchyBits {
const NAME: &'static str = "cronchy bits";
const PRODUCT: &'static str = "cronchy bits";
const VENDOR: &'static str = "unnieversal";
const INPUT_CHANNELS: usize = 2;
const OUTPUT_CHANNELS: usize = 2;
type Model = CronchyBitsModel;
#[inline]
fn new(_sample_rate: f32, _model: &CronchyBitsModel) -> Self {
Self
}
#[inline]
fn process(&mut self, model: &CronchyBitsModelProcess, ctx: &mut ProcessContext<Self>) {
let input = &ctx.inputs[0].buffers;
let output = &mut ctx.outputs[0].buffers;
for i in 0..ctx.nframes {
let cronch = model.cronch[i];
let cronch_inv = 1.0 / cronch;
let l = input[0][i];
let r = input[1][i];
match model.kind[0].into() {
Kind::Round => {
output[0][i] = l.signum() * (l.abs() * cronch).round() * cronch_inv;
output[1][i] = r.signum() * (r.abs() * cronch).round() * cronch_inv;
}
Kind::Trunc => {
output[0][i] = l.signum() * (l.abs() * cronch).trunc() * cronch_inv;
output[1][i] = r.signum() * (r.abs() * cronch).trunc() * cronch_inv;
}
Kind::Ciel => {
output[0][i] = l.signum() * (l.abs() * cronch).ceil() * cronch_inv;
output[1][i] = r.signum() * (r.abs() * cronch).ceil() * cronch_inv;
}
Kind::Floor => {
output[0][i] = l.signum() * (l.abs() * cronch).floor() * cronch_inv;
output[1][i] = r.signum() * (r.abs() * cronch).floor() * cronch_inv;
}
}
}
}
}
enum Kind {
Round,
Trunc,
Ciel,
Floor,
}
impl From<f32> for Kind {
fn from(v: f32) -> Self {
if v < 0.25 {
Self::Round
} else if v < 0.5 {
Self::Trunc
} else if v < 0.75 {
Self::Ciel
} else {
Self::Floor
}
}
}
baseplug::vst2!(CronchyBits, b"bits");