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extract TransportClock

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🪞👃🪞 2024-10-26 16:50:54 +03:00
parent ccc74fd743
commit 85e243f782
6 changed files with 130 additions and 145 deletions
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77
crates/tek_core/src/time.rs
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@ -103,6 +103,16 @@ pub trait UsecPosition<T> {
fn set_usec (&self, usec: T);
}
pub trait LaunchSync<T> {
fn sync (&self) -> T;
fn set_sync (&self, sync: T);
}
pub trait Quantize<T> {
fn quant (&self) -> T;
fn set_quant (&self, quant: T);
}
#[derive(Debug)]
/// Keeps track of global time units.
pub struct Timebase {
@ -133,47 +143,6 @@ impl PulsesPerQuaver<f64> for Timebase {
#[inline] fn set_ppq (&self, ppq: f64) { self.ppq.store(ppq, Ordering::Relaxed); }
}
#[derive(Debug)]
pub struct TransportTime {
/// Current sample sr, tempo, and PPQ.
pub timebase: Arc<Timebase>,
/// Note quantization factor
pub quant: usize,
/// Launch quantization factor
pub sync: usize,
/// Current time in frames
pub frame: usize,
/// Current time in pulses
pub pulse: usize,
/// Current time in microseconds
pub usecs: usize,
/// Pulses per quarter note
pub ppq: usize,
}
impl SampleRate<f64> for TransportTime {
#[inline] fn sr (&self) -> f64 { self.timebase.sr() }
#[inline] fn set_sr (&self, sr: f64) { self.timebase.set_sr(sr); }
}
impl BeatsPerMinute<f64> for TransportTime {
#[inline] fn bpm (&self) -> f64 { self.timebase.bpm() }
#[inline] fn set_bpm (&self, bpm: f64) { self.timebase.set_bpm(bpm); }
}
impl PulsesPerQuaver<f64> for TransportTime {
const DEFAULT_PPQ: f64 = Timebase::DEFAULT_PPQ;
#[inline] fn ppq (&self) -> f64 { self.timebase.ppq() }
#[inline] fn set_ppq (&self, ppq: f64) { self.timebase.set_ppq(ppq); }
}
pub trait LaunchSync<T> {
fn sync (&self) -> T;
fn set_sync (&self, sync: T) -> T;
}
pub trait Quantize<T> {
fn quant (&self) -> T;
fn set_quant (&self, quant: T);
}
/// (pulses, name)
pub const NOTE_DURATIONS: [(usize, &str);26] = [
(1, "1/384"),
@ -205,32 +174,22 @@ pub const NOTE_DURATIONS: [(usize, &str);26] = [
];
/// Returns the next shorter length
pub fn prev_note_length (ppq: usize) -> usize {
pub fn prev_note_length (pulses: usize) -> usize {
for i in 1..=16 {
let length = NOTE_DURATIONS[16-i].0;
if length < ppq {
return length
}
if length < pulses { return length }
}
ppq
pulses
}
/// Returns the next longer length
pub fn next_note_length (ppq: usize) -> usize {
for (length, _) in &NOTE_DURATIONS {
if *length > ppq {
return *length
}
}
ppq
pub fn next_note_length (pulses: usize) -> usize {
for (length, _) in &NOTE_DURATIONS { if *length > pulses { return *length } }
pulses
}
pub fn ppq_to_name (ppq: usize) -> &'static str {
for (length, name) in &NOTE_DURATIONS {
if *length == ppq {
return name
}
}
pub fn pulses_to_name (pulses: usize) -> &'static str {
for (length, name) in &NOTE_DURATIONS { if *length == pulses { return name } }
""
}