80 lines
3.2 KiB
C++
80 lines
3.2 KiB
C++
/* ✔ */
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#pragma once
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#include <Settings/NamespaceSettings.hpp>
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#include <stdint.h>
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BEGIN_CS_NAMESPACE
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/// @addtogroup MIDIConstants
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/// @{
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/// MIDI note names.
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/// Uses the [Scientific Pitch Notation system](https://en.wikipedia.org/wiki/Scientific_pitch_notation),
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/// where <b>A<sub>4</sub></b> is 440 Hz, and <b>C<sub>-1</sub></b> is 8.1758 Hz.
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///
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/// |Octave| C |C♯/D♭| D |D♯/E♭| E | F |F♯/G♭| G |G♯/A♭| A |A♯/B♭| B |
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/// |:-----|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|
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/// |-1 | 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 10| 11|
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/// |0 | 12| 13| 14| 15| 16| 17| 18| 19| 20| 21| 22| 23|
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/// |1 | 24| 25| 26| 27| 28| 29| 30| 31| 32| 33| 34| 35|
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/// |2 | 36| 37| 38| 39| 40| 41| 42| 43| 44| 45| 46| 47|
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/// |3 | 48| 49| 50| 51| 52| 53| 54| 55| 56| 57| 58| 59|
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/// |4 | 60| 61| 62| 63| 64| 65| 66| 67| 68| 69| 70| 71|
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/// |5 | 72| 73| 74| 75| 76| 77| 78| 79| 80| 81| 82| 83|
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/// |6 | 84| 85| 86| 87| 88| 89| 90| 91| 92| 93| 94| 95|
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/// |7 | 96| 97| 98| 99| 100| 101| 102| 103| 104| 105| 106| 107|
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/// |8 | 108| 109| 110| 111| 112| 113| 114| 115| 116| 117| 118| 119|
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namespace MIDI_Notes {
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class Note {
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private:
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int8_t base;
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constexpr Note(int8_t base) : base(base) {}
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public:
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constexpr int8_t operator()(int8_t octave = -1) const {
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return base + 12 * (octave + 1);
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}
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constexpr int8_t operator[](int8_t octave) const { return (*this)(octave); }
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constexpr static Note(C)() { return Note {0}; }
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constexpr static Note(Db)() { return Note {1}; }
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constexpr static Note(D)() { return Note {2}; }
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constexpr static Note(Eb)() { return Note {3}; }
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constexpr static Note(E)() { return Note {4}; }
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constexpr static Note(F)() { return Note {5}; }
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constexpr static Note(Gb)() { return Note {6}; }
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constexpr static Note(G)() { return Note {7}; }
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constexpr static Note(Ab)() { return Note {8}; }
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constexpr static Note(A)() { return Note {9}; }
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constexpr static Note(Bb)() { return Note {10}; }
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constexpr static Note(B)() { return Note {11}; }
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};
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constexpr Note C = (Note::C)(); ///< C (Do)
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constexpr Note Db = (Note::Db)(); ///< C♯, D♭ (Do sharp, Re flat)
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constexpr Note D = (Note::D)(); ///< D (Re)
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constexpr Note Eb = (Note::Eb)(); ///< D♯, E♭ (Re sharp, Mi flat)
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constexpr Note E = (Note::E)(); ///< E (Mi)
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constexpr Note F = (Note::F)(); ///< F (Fa)
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constexpr Note Gb = (Note::Gb)(); ///< F♯, G♭ (Fa sharp, Sol flat)
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constexpr Note G = (Note::G)(); ///< G (Sol)
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constexpr Note Ab = (Note::Ab)(); ///< G♯, A♭ (Sol sharp, La flat)
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constexpr Note A = (Note::A)(); ///< A (La)
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constexpr Note Bb = (Note::Bb)(); ///< A♯, B♭ (La sharp, Si flat)
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constexpr Note B = (Note::B)(); ///< B (Si)
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CS_DEPREC("Instead of `MIDI_Notes::F_(4)`, use `MIDI_Notes::F[4]`")
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constexpr Note F_ = (Note::F)(); ///< F (Fa)
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/// Get the MIDI note in the given octave.
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CS_DEPREC("Instead of `note(C, 4)`, use `MIDI_Notes::C(4)`")
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constexpr int8_t note(Note note, int8_t numOctave) { return note(numOctave); }
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} // namespace MIDI_Notes
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/// @}
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END_CS_NAMESPACE |