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use core::cmp::PartialEq;
use core::fmt::*;
use num_enum::{IntoPrimitive, TryFromPrimitive};
use serde::{Deserialize, Serialize};
/// 10 octaves with notes
#[derive(
Default,
Serialize,
Deserialize,
TryFromPrimitive,
IntoPrimitive,
Copy,
Clone,
Eq,
Hash,
PartialEq,
)]
#[repr(u8)]
pub enum Pitch {
/// Octave 0
C0 = 0,
Cs0 = 1,
D0 = 2,
Ds0 = 3,
E0 = 4,
F0 = 5,
Fs0 = 6,
G0 = 7,
Gs0 = 8,
A0 = 9,
As0 = 10,
B0 = 11,
/// Octave 1
C1 = 12,
Cs1 = 13,
D1 = 14,
Ds1 = 15,
E1 = 16,
F1 = 17,
Fs1 = 18,
G1 = 19,
Gs1 = 20,
A1 = 21,
As1 = 22,
B1 = 23,
/// Octave 2
C2 = 24,
Cs2 = 25,
D2 = 26,
Ds2 = 27,
E2 = 28,
F2 = 29,
Fs2 = 30,
G2 = 31,
Gs2 = 32,
A2 = 33,
As2 = 34,
B2 = 35,
/// Octave 3
C3 = 36,
Cs3 = 37,
D3 = 38,
Ds3 = 39,
E3 = 40,
F3 = 41,
Fs3 = 42,
G3 = 43,
Gs3 = 44,
A3 = 45,
As3 = 46,
B3 = 47,
/// Octave 4
C4 = 48,
Cs4 = 49,
D4 = 50,
Ds4 = 51,
E4 = 52,
F4 = 53,
Fs4 = 54,
G4 = 55,
Gs4 = 56,
A4 = 57,
As4 = 58,
B4 = 59,
/// Octave 5
C5 = 60,
Cs5 = 61,
D5 = 62,
Ds5 = 63,
E5 = 64,
F5 = 65,
Fs5 = 66,
G5 = 67,
Gs5 = 68,
A5 = 69,
As5 = 70,
B5 = 71,
/// Octave 6
C6 = 72,
Cs6 = 73,
D6 = 74,
Ds6 = 75,
E6 = 76,
F6 = 77,
Fs6 = 78,
G6 = 79,
Gs6 = 80,
A6 = 81,
As6 = 82,
B6 = 83,
/// Octave 7
C7 = 84,
Cs7 = 85,
D7 = 86,
Ds7 = 87,
E7 = 88,
F7 = 89,
Fs7 = 90,
G7 = 91,
Gs7 = 92,
A7 = 93,
As7 = 94,
B7 = 95,
/// Octave 8
C8 = 96,
Cs8 = 97,
D8 = 98,
Ds8 = 99,
E8 = 100,
F8 = 101,
Fs8 = 102,
G8 = 103,
Gs8 = 104,
A8 = 105,
As8 = 106,
B8 = 107,
/// Octave 9
C9 = 108,
Cs9 = 109,
D9 = 110,
Ds9 = 111,
E9 = 112,
F9 = 113,
Fs9 = 114,
G9 = 115,
Gs9 = 116,
A9 = 117,
As9 = 118,
B9 = 119,
#[default]
None = 253,
/// Cut Note
Cut = 254, // Like IT, not like S3M.
/// Stop note, or Fadout
Off = 255, // Like IT, not like XM (97)
/// Note Fade. Triggers the volume fadeout (the instrument's
/// `volume_fadeout` register decays towards zero) without
/// releasing the envelopes — they keep ticking from where they
/// were. Distinct from `Off`, which sends a key-off (releases
/// envelopes AND starts fadeout). Distinct from `Cut`, which
/// kills the voice instantly.
///
/// The discriminant 252 is internal to xmrs — it has no
/// semantic link to any byte the IT file format encodes.
/// Like the discriminants of `None` (253), `Cut` (254) and
/// `Off` (255), it is just the next free slot in the u8
/// representation. The IT pattern stream does not encode
/// "fade" as a note byte at all; this variant exists because
/// schism's loader synthesises the concept internally
/// (`fmt/it.c:284`: "Impulse Tracker handles all unknown
/// notes as fade internally") and we mirror that behaviour
/// when decoding out-of-spec note bytes 120..=252 — see
/// `it_pattern.rs`. XM/MOD/S3M imports never produce this
/// variant.
Fade = 252,
}
impl Debug for Pitch {
fn fmt(&self, f: &mut Formatter<'_>) -> Result {
let text = match self {
// Octave 0
Pitch::C0 => "C-0",
Pitch::Cs0 => "C#0",
Pitch::D0 => "D-0",
Pitch::Ds0 => "D#0",
Pitch::E0 => "E-0",
Pitch::F0 => "F-0",
Pitch::Fs0 => "F#0",
Pitch::G0 => "G-0",
Pitch::Gs0 => "G#0",
Pitch::A0 => "A-0",
Pitch::As0 => "A#0",
Pitch::B0 => "B-0",
// Octave 1
Pitch::C1 => "C-1",
Pitch::Cs1 => "C#1",
Pitch::D1 => "D-1",
Pitch::Ds1 => "D#1",
Pitch::E1 => "E-1",
Pitch::F1 => "F-1",
Pitch::Fs1 => "F#1",
Pitch::G1 => "G-1",
Pitch::Gs1 => "G#1",
Pitch::A1 => "A-1",
Pitch::As1 => "A#1",
Pitch::B1 => "B-1",
// Octave 2
Pitch::C2 => "C-2",
Pitch::Cs2 => "C#2",
Pitch::D2 => "D-2",
Pitch::Ds2 => "D#2",
Pitch::E2 => "E-2",
Pitch::F2 => "F-2",
Pitch::Fs2 => "F#2",
Pitch::G2 => "G-2",
Pitch::Gs2 => "G#2",
Pitch::A2 => "A-2",
Pitch::As2 => "A#2",
Pitch::B2 => "B-2",
// Octave 3
Pitch::C3 => "C-3",
Pitch::Cs3 => "C#3",
Pitch::D3 => "D-3",
Pitch::Ds3 => "D#3",
Pitch::E3 => "E-3",
Pitch::F3 => "F-3",
Pitch::Fs3 => "F#3",
Pitch::G3 => "G-3",
Pitch::Gs3 => "G#3",
Pitch::A3 => "A-3",
Pitch::As3 => "A#3",
Pitch::B3 => "B-3",
// Octave 4
Pitch::C4 => "C-4",
Pitch::Cs4 => "C#4",
Pitch::D4 => "D-4",
Pitch::Ds4 => "D#4",
Pitch::E4 => "E-4",
Pitch::F4 => "F-4",
Pitch::Fs4 => "F#4",
Pitch::G4 => "G-4",
Pitch::Gs4 => "G#4",
Pitch::A4 => "A-4",
Pitch::As4 => "A#4",
Pitch::B4 => "B-4",
// Octave 5
Pitch::C5 => "C-5",
Pitch::Cs5 => "C#5",
Pitch::D5 => "D-5",
Pitch::Ds5 => "D#5",
Pitch::E5 => "E-5",
Pitch::F5 => "F-5",
Pitch::Fs5 => "F#5",
Pitch::G5 => "G-5",
Pitch::Gs5 => "G#5",
Pitch::A5 => "A-5",
Pitch::As5 => "A#5",
Pitch::B5 => "B-5",
// Octave 6
Pitch::C6 => "C-6",
Pitch::Cs6 => "C#6",
Pitch::D6 => "D-6",
Pitch::Ds6 => "D#6",
Pitch::E6 => "E-6",
Pitch::F6 => "F-6",
Pitch::Fs6 => "F#6",
Pitch::G6 => "G-6",
Pitch::Gs6 => "G#6",
Pitch::A6 => "A-6",
Pitch::As6 => "A#6",
Pitch::B6 => "B-6",
// Octave 7
Pitch::C7 => "C-7",
Pitch::Cs7 => "C#7",
Pitch::D7 => "D-7",
Pitch::Ds7 => "D#7",
Pitch::E7 => "E-7",
Pitch::F7 => "F-7",
Pitch::Fs7 => "F#7",
Pitch::G7 => "G-7",
Pitch::Gs7 => "G#7",
Pitch::A7 => "A-7",
Pitch::As7 => "A#7",
Pitch::B7 => "B-7",
// Octave 8
Pitch::C8 => "C-8",
Pitch::Cs8 => "C#8",
Pitch::D8 => "D-8",
Pitch::Ds8 => "D#8",
Pitch::E8 => "E-8",
Pitch::F8 => "F-8",
Pitch::Fs8 => "F#8",
Pitch::G8 => "G-8",
Pitch::Gs8 => "G#8",
Pitch::A8 => "A-8",
Pitch::As8 => "A#8",
Pitch::B8 => "B-8",
// Octave 9
Pitch::C9 => "C-9",
Pitch::Cs9 => "C#9",
Pitch::D9 => "D-9",
Pitch::Ds9 => "D#9",
Pitch::E9 => "E-9",
Pitch::F9 => "F-9",
Pitch::Fs9 => "F#9",
Pitch::G9 => "G-9",
Pitch::Gs9 => "G#9",
Pitch::A9 => "A-9",
Pitch::As9 => "A#9",
Pitch::B9 => "B-9",
Pitch::None => "---",
Pitch::Off => "===",
Pitch::Cut => "^^^",
Pitch::Fade => "~~~",
};
write!(f, "{}", text)
}
}
impl Pitch {
#[inline(always)]
pub fn is_none(&self) -> bool {
*self == Self::None
}
#[inline(always)]
pub fn is_keyoff(&self) -> bool {
*self == Self::Off
}
/// IT-only fade trigger. Distinct from `is_keyoff`: a fade
/// starts the volume fadeout WITHOUT releasing the envelopes
/// (envelopes keep ticking from where they were). Key-off
/// releases the envelopes AND starts fadeout.
#[inline(always)]
pub fn is_fade(&self) -> bool {
*self == Self::Fade
}
#[inline(always)]
pub fn is_valid(&self) -> bool {
self.value() < 120
}
#[inline(always)]
pub fn value(&self) -> u8 {
*self as u8
}
}