88 lines
2.8 KiB
Rust
88 lines
2.8 KiB
Rust
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// Copyright (c) 2021 Weird Constructor <weirdconstructor@gmail.com>
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// This is a part of HexoDSP. Released under (A)GPLv3 or any later.
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// See README.md and COPYING for details.
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use crate::nodes::{NodeAudioContext, NodeExecContext};
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use crate::dsp::{NodeId, SAtom, ProcBuf, DspNode, LedPhaseVals, NodeContext};
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/// A simple amplifier
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#[derive(Debug, Clone)]
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pub struct Mix3 {
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}
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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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}
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pub const ch1 : &'static str =
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"Mix3 inp\nChannel 1 Signal input\nRange: (-1..1)\n";
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pub const ch2 : &'static str =
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"Mix3 inp2\nChannel 2 Signal input\nRange: (-1..1)\n";
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pub const ch3 : &'static str =
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"Mix3 inp3\nChannel 3 Signal input\nRange: (-1..1)\n";
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pub const gain1 : &'static str =
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"Mix3 gain1\nChannel 1 gain\nRange: (0..1)";
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pub const gain2 : &'static str =
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"Mix3 gain2\nChannel 2 gain\nRange: (0..1)";
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pub const gain3 : &'static str =
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"Mix3 gain3\nChannel 3 gain\nRange: (0..1)";
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pub const ogain : &'static str =
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"Mix3 ogain\nOutput gain of the sum\nRange: (0..1)";
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pub const sig : &'static str =
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"Mix3 sig\nMixed signal output\nRange: (-1..1)\n";
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pub const DESC : &'static str =
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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 =
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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 { 1 }
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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, ctx: &mut T, _ectx: &mut NodeExecContext,
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_nctx: &NodeContext,
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_atoms: &[SAtom], inputs: &[ProcBuf],
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outputs: &mut [ProcBuf], ctx_vals: LedPhaseVals)
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{
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use crate::dsp::{out, inp, denorm};
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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 =
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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(
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out.read(ctx.nframes() - 1));
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}
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}
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