66 lines
1.5 KiB
C
66 lines
1.5 KiB
C
#include "audio.h"
|
|
#include "process_audio.h"
|
|
|
|
#ifndef VOICE_CHANGE_SONG
|
|
# define VOICE_CHANGE_SONG SONG(VOICE_CHANGE_SOUND)
|
|
#endif
|
|
float voice_change_song[][2] = VOICE_CHANGE_SONG;
|
|
|
|
#ifndef PITCH_STANDARD_A
|
|
# define PITCH_STANDARD_A 440.0f
|
|
#endif
|
|
|
|
float compute_freq_for_midi_note(uint8_t note) {
|
|
// https://en.wikipedia.org/wiki/MIDI_tuning_standard
|
|
return pow(2.0, (note - 69) / 12.0) * PITCH_STANDARD_A;
|
|
}
|
|
|
|
bool process_audio(uint16_t keycode, keyrecord_t *record) {
|
|
if (keycode == AU_ON && record->event.pressed) {
|
|
audio_on();
|
|
return false;
|
|
}
|
|
|
|
if (keycode == AU_OFF && record->event.pressed) {
|
|
audio_off();
|
|
return false;
|
|
}
|
|
|
|
if (keycode == AU_TOG && record->event.pressed) {
|
|
if (is_audio_on()) {
|
|
audio_off();
|
|
} else {
|
|
audio_on();
|
|
}
|
|
return false;
|
|
}
|
|
|
|
if (keycode == MUV_IN && record->event.pressed) {
|
|
voice_iterate();
|
|
PLAY_SONG(voice_change_song);
|
|
return false;
|
|
}
|
|
|
|
if (keycode == MUV_DE && record->event.pressed) {
|
|
voice_deiterate();
|
|
PLAY_SONG(voice_change_song);
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void process_audio_noteon(uint8_t note) {
|
|
play_note(compute_freq_for_midi_note(note), 0xF);
|
|
}
|
|
|
|
void process_audio_noteoff(uint8_t note) {
|
|
stop_note(compute_freq_for_midi_note(note));
|
|
}
|
|
|
|
void process_audio_all_notes_off(void) {
|
|
stop_all_notes();
|
|
}
|
|
|
|
__attribute__((weak)) void audio_on_user() {}
|
|
__attribute__((weak)) void audio_off_user() {}
|