85 lines
2.1 KiB
Rust
85 lines
2.1 KiB
Rust
#![allow(incomplete_features)]
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#![feature(generic_associated_types)]
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use serde::{Serialize, Deserialize};
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use packed_simd::f32x4;
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mod svf_simper;
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use svf_simper::SVFSimper;
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use baseplug::{
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Plugin,
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ProcessContext
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};
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baseplug::model! {
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#[derive(Debug, Serialize, Deserialize)]
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struct SVFModel {
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#[model(min = 10.0, max = 22000.0)]
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#[parameter(name = "cutoff", label = "hz", gradient = "Exponential")]
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cutoff: f32,
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#[model(min = 0.0, max = 1.0)]
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#[parameter(name = "resonance")]
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resonance: f32
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}
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}
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impl Default for SVFModel {
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fn default() -> Self {
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Self {
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cutoff: 10000.0,
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resonance: 0.6
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}
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}
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}
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struct SVFPlugin {
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lpf: SVFSimper
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}
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impl Plugin for SVFPlugin {
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const NAME: &'static str = "svf lowpass";
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const PRODUCT: &'static str = "svf lowpass";
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const VENDOR: &'static str = "spicy plugins & co";
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const INPUT_CHANNELS: usize = 2;
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const OUTPUT_CHANNELS: usize = 2;
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type Model = SVFModel;
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#[inline]
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fn new(sample_rate: f32, model: &SVFModel) -> Self {
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Self {
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lpf: SVFSimper::new(model.cutoff, model.resonance, sample_rate)
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}
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}
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#[inline]
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fn process(&mut self, model: &SVFModelProcess, 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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self.lpf.set(model.cutoff[i], model.resonance[i], ctx.sample_rate);
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let frame = f32x4::new(input[0][i], input[1][i], 0.0, 0.0);
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let lp = self.lpf.process(frame);
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// would be nice to align this, but doesn't seem possible with #[repr(align)].
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// ah well. not much of a perf penalty for unaligned writes these days.
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let mut frame_out = [0.0f32; 4];
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unsafe {
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lp.write_to_slice_unaligned_unchecked(&mut frame_out);
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}
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output[0][i] = frame_out[0];
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output[1][i] = frame_out[1];
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}
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}
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}
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baseplug::vst2!(SVFPlugin, b"sVf!");
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