alex/nih-plug
1
0
Fork 0
Code Activity

Mark the utils functions as inlnie

Browse source 
So the compiler can decide what to do with them.
This commit is contained in:
Robbert van der Helm 2022-11-18 16:09:32 +01:00
parent 6d0c1eebbe
commit 4dbc0c1a87
1 changed files with 5 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
src/util.rs
View file

@ -26,6 +26,7 @@ pub fn permit_alloc<T, F: FnOnce() -> T>(func: F) -> T {
}
/// Convert decibels to a voltage gain ratio, treating anything below -100 dB as minus infinity.
#[inline]
pub fn db_to_gain(dbs: f32) -> f32 {
if dbs > MINUS_INFINITY_DB {
10.0f32.powf(dbs * 0.05)
@ -36,6 +37,7 @@ pub fn db_to_gain(dbs: f32) -> f32 {
/// Convert a voltage gain ratio to decibels. Gain ratios that aren't positive will be treated as
/// [`MINUS_INFINITY_DB`].
#[inline]
pub fn gain_to_db(gain: f32) -> f32 {
if gain > MINUS_INFINITY_GAIN {
gain.log10() * 20.0
@ -46,6 +48,7 @@ pub fn gain_to_db(gain: f32) -> f32 {
/// Convert a MIDI note ID to a frequency at A4 = 440 Hz equal temperament and middle C = note 60 =
/// C4.
#[inline]
pub fn midi_note_to_freq(note: u8) -> f32 {
f32_midi_note_to_freq(note as f32)
}
@ -53,6 +56,7 @@ pub fn midi_note_to_freq(note: u8) -> f32 {
/// The same as [`midi_note_to_freq()`], but for arbitrary note numbers including those outside of
/// the MIDI range. This also supports fractional note numbers, which is useful when working with
/// cents.
#[inline]
pub fn f32_midi_note_to_freq(note: f32) -> f32 {
2.0f32.powf((note - 69.0) / 12.0) * 440.0
}
@ -60,6 +64,7 @@ pub fn f32_midi_note_to_freq(note: f32) -> f32 {
/// The inverse of [`f32_midi_note_to_freq()`]. This returns a fractional note number. Round to a
/// whole number, subtract that from the result, and multiply the fractional part by 100 to get the
/// number of cents.
#[inline]
pub fn freq_to_midi_note(freq: f32) -> f32 {
((freq / 440.0).log2() * 12.0) + 69.0
}