78 lines
2.2 KiB
Rust
78 lines
2.2 KiB
Rust
// Copyright (c) 2022 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 super::helpers::{sqrt4_to_pow4, TrigSignal, Trigger};
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use crate::dsp::{
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DspNode, LedPhaseVals, NodeContext, NodeId, ProcBuf, SAtom,
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};
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use crate::nodes::{NodeAudioContext, NodeExecContext};
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use crate::UnsyncFloatBuf;
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/// A simple signal scope
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#[derive(Debug, Clone)]
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pub struct Scope {
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buf: UnsyncFloatBuf,
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idx: usize,
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}
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impl Scope {
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pub fn new(_nid: &NodeId) -> Self {
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Self { buf: UnsyncFloatBuf::new_with_len(1), idx: 0 }
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}
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pub const inp: &'static str = "Scope inp\nSignal input.\nRange: (-1..1)\n";
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pub const sig: &'static str =
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"Scope sig\nSignal output. The exact same signal that was received on 'inp'!\n";
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pub const DESC: &'static str = r#"Signal Oscilloscope Probe
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This is a signal oscilloscope probe node. You can have up to 16 of these,
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which will be displayed in the GUI.
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"#;
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pub const HELP: &'static str = r#"Scope - Signal Oscilloscope Probe
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You can have up to 16 of these probes in your patch. The received signal will be
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forwarded to the GUI and you can inspect the waveform there.
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"#;
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pub fn set_scope_buffer(&mut self, buf: UnsyncFloatBuf) {
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self.buf = buf;
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}
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}
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impl DspNode for Scope {
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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::{inp, out};
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let inp = inp::Ad::inp(inputs);
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let out = out::Scope::sig(outputs);
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for frame in 0..ctx.nframes() {
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let in_val = inp.read(frame);
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self.buf.write(self.idx, in_val);
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self.idx = (self.idx + 1) % self.buf.len();
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out.write(frame, in_val);
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}
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let last_frame = ctx.nframes() - 1;
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ctx_vals[0].set(out.read(last_frame));
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}
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}
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