130 lines
3.8 KiB
Rust
130 lines
3.8 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::nodes::{NodeAudioContext, NodeExecContext};
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use crate::dsp::{NodeId, SAtom, ProcBuf, DspNode, LedPhaseVals, NodeContext};
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use crate::dsp::helpers::CtrlPitchQuantizer;
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#[macro_export]
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macro_rules! fa_cqnt { ($formatter: expr, $v: expr, $denorm_v: expr) => { {
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write!($formatter, "?")
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} } }
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#[macro_export]
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macro_rules! fa_cqnt_omin { ($formatter: expr, $v: expr, $denorm_v: expr) => { {
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let s =
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match ($v.round() as usize) {
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0 => "-0",
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1 => "-1",
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2 => "-2",
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3 => "-3",
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4 => "-4",
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_ => "?",
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};
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write!($formatter, "{}", s)
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} } }
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#[macro_export]
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macro_rules! fa_cqnt_omax { ($formatter: expr, $v: expr, $denorm_v: expr) => { {
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let s =
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match ($v.round() as usize) {
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0 => "+0",
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1 => "+1",
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2 => "+2",
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3 => "+3",
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4 => "+4",
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_ => "?",
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};
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write!($formatter, "{}", s)
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} } }
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/// A 9 channel signal multiplexer
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#[derive(Debug, Clone)]
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pub struct CQnt {
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quant: Box<CtrlPitchQuantizer>,
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}
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impl CQnt {
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pub fn new(_nid: &NodeId) -> Self {
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Self {
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quant: Box::new(CtrlPitchQuantizer::new()),
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}
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}
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pub const inp : &'static str =
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"CQnt inp\n\nRange: (0..1)";
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pub const oct : &'static str =
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"CQnt oct\n\nRange: (-1..1)";
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pub const omin : &'static str =
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"CQnt omin\n\nRange: (-1..1)";
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pub const omax : &'static str =
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"CQnt omax\n\nRange: (-1..1)";
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pub const sig : &'static str =
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"CQnt sig\n\nRange: (-1..1)";
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pub const keys : &'static str =
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"CQnt keys\n";
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pub const DESC : &'static str =
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r#"Control Pitch Quantizer
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This special quantizer maps the 0..1 input range on 'inp' evenly to the selected keys and octaves.
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"#;
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pub const HELP : &'static str =
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r#"CQnt - A control signal to pitch quantizer
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This is a specialized quantizer to generate a pitch/frequency from a signal
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within the 0..1 range. It does not quantize a typical -1..1 frequency signal
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like the 'Quant' node.
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"#;
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}
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impl DspNode for CQnt {
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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::{at, out, inp, denorm};
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let inp = inp::CQnt::inp(inputs);
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let oct = inp::CQnt::oct(inputs);
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let out = out::CQnt::sig(outputs);
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let keys = at::CQnt::keys(atoms);
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let omin = at::CQnt::omin(atoms);
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let omax = at::CQnt::omax(atoms);
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self.quant.update_keys(keys.i(), omin.i(), omax.i());
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if self.quant.has_no_keys() {
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for frame in 0..ctx.nframes() {
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out.write(
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frame,
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denorm::CQnt::inp(inp, frame)
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+ denorm::CQnt::oct(oct, frame));
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}
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ctx_vals[1].set(100.0); // some unreachable value for Keys widget
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ctx_vals[0].set(out.read(ctx.nframes() - 1));
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} else {
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let mut last_key = 0;
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for frame in 0..ctx.nframes() {
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let pitch =
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self.quant.signal_to_pitch(
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denorm::CQnt::inp(inp, frame));
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out.write(frame, pitch + denorm::CQnt::oct(oct, frame));
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}
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let last_pitch = self.quant.last_key_pitch();
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ctx_vals[1].set(last_pitch * 10.0 + 0.0001);
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ctx_vals[0].set((last_pitch * 10.0 - 0.5) * 2.0);
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}
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}
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}
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