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LibDSP: Make the note frequencies an AK::Array instead of a C array

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This was a leftover from the early days of Piano, and there's no reason
to leave it that way especially if we want to use more complex
collection APIs in the future.
This commit is contained in:
kleines Filmröllchen 2022-05-11 21:59:49 +02:00 committed by Linus Groh
parent bcb331b862
commit f23aea0c4b
Notes: sideshowbarker 2024-07-17 10:55:32 +09:00 
Author: https://github.com/kleinesfilmroellchen
Commit: https://github.com/SerenityOS/serenity/commit/f23aea0c4b
Pull-request: https://github.com/SerenityOS/serenity/pull/14010
5 changed files with 6 additions and 7 deletions
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2
Userland/Libraries/LibDSP/Clip.cpp
View file

@ -16,7 +16,7 @@ Sample AudioClip::sample_at(u32 time)
void NoteClip::set_note(RollNote note)
{
VERIFY(note.pitch >= 0 && note.pitch < note_count);
VERIFY(note.pitch >= 0 && note.pitch < note_frequencies.size());
VERIFY(note.off_sample < m_length);
VERIFY(note.length() >= 2);

4
Userland/Libraries/LibDSP/Clip.h
View file

@ -47,10 +47,10 @@ class NoteClip final : public Clip {
public:
void set_note(RollNote note);
Array<SinglyLinkedList<RollNote>, note_count> const& notes() const { return m_notes; }
Array<SinglyLinkedList<RollNote>, note_frequencies.size()> const& notes() const { return m_notes; }
private:
Array<SinglyLinkedList<RollNote>, note_count> m_notes;
Array<SinglyLinkedList<RollNote>, note_frequencies.size()> m_notes;
};
}

3
Userland/Libraries/LibDSP/Music.h
View file

@ -84,7 +84,7 @@ struct Signal : public Variant<Sample, RollNotes> {
// We calculate note frequencies relative to A4:
// 440.0 * pow(pow(2.0, 1.0 / 12.0), N)
// Where N is the note distance from A.
constexpr double note_frequencies[] = {
constexpr Array<double, 84> note_frequencies = {
// Octave 1
32.703195662574764,
34.647828872108946,
@ -177,7 +177,6 @@ constexpr double note_frequencies[] = {
3729.3100921447249,
3951.0664100489994,
};
constexpr size_t const note_count = array_size(note_frequencies);
constexpr double const middle_c = note_frequencies[36];

2
Userland/Libraries/LibDSP/Synthesizers.cpp
View file

@ -41,7 +41,7 @@ Signal Classic::process_impl(Signal const& input_signal)
// "Press" the necessary notes in the internal representation,
// and "release" all of the others
for (u8 i = 0; i < note_count; ++i) {
for (u8 i = 0; i < note_frequencies.size(); ++i) {
if (auto maybe_note = in.get(i); maybe_note.has_value())
m_playing_notes.set(i, maybe_note.value());

2
Userland/Libraries/LibDSP/Synthesizers.h
View file

@ -66,7 +66,7 @@ private:
ProcessorRangeParameter m_release;
RollNotes m_playing_notes;
Array<double, note_count> last_random;
Array<double, note_frequencies.size()> last_random;
};
}