79 lines
2.7 KiB
Rust
79 lines
2.7 KiB
Rust
// Copyright (c) 2021 Weird Constructor <weirdconstructor@gmail.com>
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// This file is a part of HexoDSP. Released under GPL-3.0-or-later.
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// See README.md and COPYING for details.
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use crate::dsp::{DspNode, LedPhaseVals, NodeContext, NodeId, ProcBuf, SAtom};
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use crate::nodes::{NodeAudioContext, NodeExecContext};
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/// A 3 channel signal mixer
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#[derive(Debug, Clone)]
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pub struct Mix3 {}
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impl Mix3 {
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pub fn new(_nid: &NodeId) -> Self {
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Self {}
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}
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pub const ch1: &'static str = "Mix3 ch1\nChannel 1 Signal input\nRange: (-1..1)\n";
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pub const ch2: &'static str = "Mix3 ch2\nChannel 2 Signal input\nRange: (-1..1)\n";
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pub const ch3: &'static str = "Mix3 ch3\nChannel 3 Signal input\nRange: (-1..1)\n";
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pub const gain1: &'static str = "Mix3 gain1\nChannel 1 gain\nRange: (0..1)";
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pub const gain2: &'static str = "Mix3 gain2\nChannel 2 gain\nRange: (0..1)";
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pub const gain3: &'static str = "Mix3 gain3\nChannel 3 gain\nRange: (0..1)";
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pub const ogain: &'static str = "Mix3 ogain\nOutput gain of the sum\nRange: (0..1)";
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pub const sig: &'static str = "Mix3 sig\nMixed signal output\nRange: (-1..1)\n";
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pub const DESC: &'static str = r#"3 Ch. Signal Mixer
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A very simple 3 channel signal mixer.
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You can mix anything, from audio signals to control signals.
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"#;
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pub const HELP: &'static str = r#"Mix3 - 3 Channel Signal Mixer
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Just a small 3 channel mixer to create a sum of multiple signals.
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You can mix anything, from audio signals to control signals.
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There is even a convenient output gain knob,
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to turn down the output.
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"#;
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}
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impl DspNode for Mix3 {
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fn outputs() -> usize {
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1
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}
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fn set_sample_rate(&mut self, _srate: f32) {}
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fn reset(&mut self) {}
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#[inline]
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fn process<T: NodeAudioContext>(
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&mut self,
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ctx: &mut T,
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_ectx: &mut NodeExecContext,
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_nctx: &NodeContext,
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_atoms: &[SAtom],
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inputs: &[ProcBuf],
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outputs: &mut [ProcBuf],
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ctx_vals: LedPhaseVals,
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) {
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use crate::dsp::{denorm, inp, out};
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let inp1 = inp::Mix3::ch1(inputs);
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let inp2 = inp::Mix3::ch2(inputs);
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let inp3 = inp::Mix3::ch3(inputs);
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let g1 = inp::Mix3::gain1(inputs);
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let g2 = inp::Mix3::gain2(inputs);
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let g3 = inp::Mix3::gain3(inputs);
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let og = inp::Mix3::ogain(inputs);
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let out = out::Mix3::sig(outputs);
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for frame in 0..ctx.nframes() {
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let sum = inp1.read(frame) * denorm::Mix3::gain1(g1, frame)
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+ inp2.read(frame) * denorm::Mix3::gain2(g2, frame)
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+ inp3.read(frame) * denorm::Mix3::gain3(g3, frame);
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out.write(frame, sum * denorm::Mix3::ogain(og, frame));
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}
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ctx_vals[0].set(out.read(ctx.nframes() - 1));
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}
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}
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