mirror of
https://github.com/robbert-vdh/nih-plug.git
synced 2026-07-01 02:36:54 +00:00
126 lines
3.6 KiB
Rust
126 lines
3.6 KiB
Rust
// Buffr Glitch: a MIDI-controlled buffer repeater
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// Copyright (C) 2022 Robbert van der Helm
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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use nih_plug::prelude::*;
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use std::sync::Arc;
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mod buffer;
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struct BuffrGlitch {
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params: Arc<BuffrGlitchParams>,
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sample_rate: f32,
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/// The ring buffer we'll write samples to. When a key is held down, we'll stop writing samples
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/// and instead keep reading from this buffer until the key is released.
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buffer: buffer::RingBuffer,
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}
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#[derive(Params)]
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struct BuffrGlitchParams {}
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impl Default for BuffrGlitch {
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fn default() -> Self {
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Self {
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params: Arc::new(BuffrGlitchParams::default()),
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sample_rate: 1.0,
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buffer: buffer::RingBuffer::default(),
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}
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}
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}
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impl Default for BuffrGlitchParams {
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fn default() -> Self {
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Self {}
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}
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}
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impl Plugin for BuffrGlitch {
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const NAME: &'static str = "Buffr Glitch";
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const VENDOR: &'static str = "Robbert van der Helm";
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const URL: &'static str = "https://github.com/robbert-vdh/nih-plug";
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const EMAIL: &'static str = "mail@robbertvanderhelm.nl";
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const VERSION: &'static str = env!("CARGO_PKG_VERSION");
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const DEFAULT_INPUT_CHANNELS: u32 = 2;
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const DEFAULT_OUTPUT_CHANNELS: u32 = 2;
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type BackgroundTask = ();
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fn params(&self) -> Arc<dyn Params> {
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self.params.clone()
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}
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fn accepts_bus_config(&self, config: &BusConfig) -> bool {
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config.num_input_channels == config.num_output_channels && config.num_input_channels > 0
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}
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fn initialize(
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&mut self,
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bus_config: &BusConfig,
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buffer_config: &BufferConfig,
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_context: &mut impl InitContext<Self>,
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) -> bool {
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self.sample_rate = buffer_config.sample_rate;
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self.buffer.resize(
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bus_config.num_input_channels as usize,
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buffer_config.sample_rate,
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);
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true
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}
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fn reset(&mut self) {
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self.buffer.reset();
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}
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fn process(
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&mut self,
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buffer: &mut Buffer,
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_aux: &mut AuxiliaryBuffers,
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_context: &mut impl ProcessContext<Self>,
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) -> ProcessStatus {
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for channel_samples in buffer.iter_samples() {
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for (channel_idx, sample) in channel_samples.into_iter().enumerate() {
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self.buffer.push(channel_idx, *sample);
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}
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}
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ProcessStatus::Normal
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}
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}
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impl ClapPlugin for BuffrGlitch {
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const CLAP_ID: &'static str = "nl.robbertvanderhelm.buffr-glitch";
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const CLAP_DESCRIPTION: Option<&'static str> = Some("MIDI-controller buffer repeat");
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const CLAP_MANUAL_URL: Option<&'static str> = Some(Self::URL);
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const CLAP_SUPPORT_URL: Option<&'static str> = None;
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const CLAP_FEATURES: &'static [ClapFeature] = &[
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ClapFeature::AudioEffect,
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ClapFeature::Stereo,
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ClapFeature::Glitch,
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];
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}
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impl Vst3Plugin for BuffrGlitch {
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const VST3_CLASS_ID: [u8; 16] = *b"BuffrGlitch.RvdH";
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const VST3_CATEGORIES: &'static str = "Fx";
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}
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nih_export_clap!(BuffrGlitch);
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nih_export_vst3!(BuffrGlitch);
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