// Copyright (c) 2022 Weird Constructor // This file is a part of HexoDSP. Released under GPL-3.0-or-later. // See README.md and COPYING for details. use crate::dsp::{at, inp, out_idx, DspNode, LedPhaseVals, NodeContext, NodeId, ProcBuf, SAtom}; use crate::nodes::{HxMidiEvent, MidiEventPointer, NodeAudioContext, NodeExecContext}; use synfx_dsp::TrigSignal; #[macro_export] macro_rules! fa_midip_chan { ($formatter: expr, $v: expr, $denorm_v: expr) => {{ write!($formatter, "{}", $v.round() as usize) }}; } #[macro_export] macro_rules! fa_midip_gmode { ($formatter: expr, $v: expr, $denorm_v: expr) => {{ let s = match ($v.round() as usize) { 0 => "MIDI", 1 => "Trigger", 2 => "Gate Len", _ => "?", }; write!($formatter, "{}", s) }}; } /// The (stereo) output port of the plugin #[derive(Debug, Clone)] pub struct MidiP { next_gate: i8, cur_note: u8, cur_gate: u8, cur_vel: f32, trig_sig: TrigSignal, } impl MidiP { pub fn new(_nid: &NodeId) -> Self { Self { next_gate: 0, cur_note: 0, cur_gate: 0, cur_vel: 0.0, trig_sig: TrigSignal::new() } } pub const chan: &'static str = "MidiP chan\nMIDI Channel 0 to 15\n"; pub const gmode: &'static str = "MidiP gmode\nMIDI gate mode.\n- 'MIDI' gate same as MIDI input\n- 'Trigger' output only triggers on 'gate' output\n- 'Gate Len' output gate with the length of the 'gatel' parameter\n"; pub const glen: &'static str = "MidiP glen\nMIDI gate length\n\ If 'gmode' is set to 'Gate Len' this controls and overrides the gate length on a MIDI \ note event. 'Trigger' will just send a short trigger when a note event is received. \ 'MIDI' means the gate reflects the note on/off duration."; pub const det: &'static str = "MidiP det\nDetune input pitch a bit\nRange: (-1..1)"; pub const freq: &'static str = "MidiP freq\nMIDI note frequency, detuned by 'det'.\nRange: (-1..1)"; pub const gate: &'static str = "MidiP gate\nMIDI note gate\nRange: (0..1)"; pub const vel: &'static str = "MidiP vel\nMIDI note velocity\nRange: (0..1)"; pub const ch1: &'static str = "MidiP ch1\nAudio channel 1 (left)\nRange: (-1..1)"; pub const ch2: &'static str = "MidiP ch2\nAudio channel 2 (right)\nRange: (-1..1)"; pub const ch3: &'static str = "MidiP ch2\nAudio channel 2 (right)\nRange: (-1..1)"; pub const ch4: &'static str = "MidiP ch2\nAudio channel 2 (right)\nRange: (-1..1)"; pub const ch5: &'static str = "MidiP ch2\nAudio channel 2 (right)\nRange: (-1..1)"; pub const ch6: &'static str = "MidiP ch2\nAudio channel 2 (right)\nRange: (-1..1)"; pub const ch7: &'static str = "MidiP ch2\nAudio channel 2 (right)\nRange: (-1..1)"; pub const ch8: &'static str = "MidiP ch2\nAudio channel 2 (right)\nRange: (-1..1)"; pub const ch9: &'static str = "MidiP ch2\nAudio channel 2 (right)\nRange: (-1..1)"; pub const ch10: &'static str = "MidiP ch2\nAudio channel 2 (right)\nRange: (-1..1)"; pub const ch11: &'static str = "MidiP ch2\nAudio channel 2 (right)\nRange: (-1..1)"; pub const ch12: &'static str = "MidiP ch2\nAudio channel 2 (right)\nRange: (-1..1)"; pub const ch13: &'static str = "MidiP ch2\nAudio channel 2 (right)\nRange: (-1..1)"; pub const ch14: &'static str = "MidiP ch2\nAudio channel 2 (right)\nRange: (-1..1)"; pub const ch15: &'static str = "MidiP ch2\nAudio channel 2 (right)\nRange: (-1..1)"; pub const ch16: &'static str = "MidiP ch2\nAudio channel 2 (right)\nRange: (-1..1)"; pub const ch17: &'static str = "MidiP ch2\nAudio channel 2 (right)\nRange: (-1..1)"; pub const DESC: &'static str = "Audio Output Port\n\n\ This output port node allows you to send audio signals \ to audio devices or tracks in your DAW."; pub const HELP: &'static str = r#"Audio Output Port This output port node allows you to send audio signals to audio devices or tracks in your DAW. If you need a stereo output but only have a mono signal you can use the 'mono' setting to duplicate the signal on the 'ch1' input to the second channel 'ch2'. "#; } impl DspNode for MidiP { fn outputs() -> usize { 0 } fn set_sample_rate(&mut self, srate: f32) { self.trig_sig.set_sample_rate(srate); } fn reset(&mut self) { self.trig_sig.reset(); } #[inline] fn process( &mut self, ctx: &mut T, ectx: &mut NodeExecContext, _nctx: &NodeContext, atoms: &[SAtom], inputs: &[ProcBuf], outputs: &mut [ProcBuf], ctx_vals: LedPhaseVals, ) { let det = inp::MidiP::det(inputs); let chan = at::MidiP::chan(atoms); let gmode = at::MidiP::gmode(atoms); let out_i = out_idx::MidiP::gate(); let (freq, r) = outputs.split_at_mut(out_i); let (gate, vel) = r.split_at_mut(1); let freq = &mut freq[0]; let gate = &mut gate[0]; let vel = &mut vel[0]; let midip_channel = (chan.i() as usize % 16) as u8; let mut ptr = MidiEventPointer::new(&ectx.midi_notes[..]); let gmode = gmode.i(); for frame in 0..ctx.nframes() { if self.next_gate > 0 { self.cur_gate = 1; } else if self.next_gate < 0 { self.cur_gate = 0; } self.next_gate = 0; while let Some(ev) = ptr.next_at(frame) { match ev { HxMidiEvent::NoteOn { channel, note, vel } => { if channel != midip_channel { continue; } if self.cur_gate > 0 { self.next_gate = 1; self.cur_gate = 0; } else { self.cur_gate = 1; } self.trig_sig.trigger(); self.cur_note = note; self.cur_vel = vel; } HxMidiEvent::NoteOff { channel, note } => { if channel != midip_channel { continue; } if self.cur_note == note { self.next_gate = -1; } } _ => (), } } match gmode { 1 => { gate.write(frame, self.trig_sig.next()); } _ => { gate.write(frame, if self.cur_gate > 0 { 1.0 } else { 0.0 }); } } let note = (self.cur_note as f32 - 69.0) / 120.0; let note = note + det.read(frame); //d// println!("FRAME: {} => gate={}, freq={}, next_gate={}", frame, self.cur_gate, note, self.next_gate); freq.write(frame, note); vel.write(frame, self.cur_vel as f32); } let last_val = gate.read(ctx.nframes() - 1); ctx_vals[0].set(last_val); } }