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Better note recalculation

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This commit is contained in:
Weird Constructor 2022-08-11 05:11:26 +02:00
parent 90c948d272
commit fb3a7f9896
2 changed files with 21 additions and 13 deletions
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25
src/dsp/node_midip.rs
View file

@ -17,15 +17,12 @@ macro_rules! fa_midip_chan {
/// The (stereo) output port of the plugin
#[derive(Debug, Clone)]
pub struct MidiP {
/// - 0: signal channel 1
/// - 1: signal channel 2
#[allow(dead_code)]
input: [f32; 2],
prev_gate: u8,
}
impl MidiP {
pub fn new(_nid: &NodeId) -> Self {
Self { input: [0.0; 2] }
Self { prev_gate: 0 }
}
pub const chan: &'static str = "MidiP chan\nMIDI Channel 0 to 15\n";
@ -94,8 +91,22 @@ impl DspNode for MidiP {
for frame in 0..ctx.nframes() {
let chan = ectx.note_buffer.get_chan_at(0, frame as u8);
freq.write(frame, chan.note as f32 * 1.0 / 127.0);
gate.write(frame, chan.gate as f32);
let note = (chan.note as f32 - 57.0) / 120.0;
freq.write(frame, note);
if chan.gate > 0 {
// insert a single sample of silence, for retriggering
// any envelopes if the note changed but no note-off came.
if self.prev_gate > 0 && self.prev_gate != chan.gate {
gate.write(frame, 0.0);
} else {
gate.write(frame, 1.0);
}
} else {
gate.write(frame, 0.0);
}
self.prev_gate = chan.gate;
vel.write(frame, chan.vel as f32);
}

9
src/nodes/note_buffer.rs
View file

@ -61,18 +61,15 @@ impl NoteBuffer {
#[inline]
pub fn note_on(&mut self, channel: u8, note: u8) {
let mut chan = &mut self.interleaved_chans[(self.buf_idx * 16) + (channel as usize % 16)];
if chan.gate == 0 {
chan.gate = 1;
chan.note = note;
}
chan.gate = (chan.gate + 1) % 2 + 1;
chan.note = note;
}
#[inline]
pub fn note_off(&mut self, channel: u8, note: u8) {
let mut chan = &mut self.interleaved_chans[(self.buf_idx * 16) + (channel as usize % 16)];
if chan.gate == 1 && chan.note == note {
if chan.gate > 0 && chan.note == note {
chan.gate = 0;
chan.note = 0;
}
}