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#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
#ifdef AUDIO_CLICKY
#ifdef AUDIO_CLICKY_ON
bool clicky_enable = true;
#else
bool clicky_enable = false;
#endif
#ifndef AUDIO_CLICKY_FREQ_DEFAULT
#define AUDIO_CLICKY_FREQ_DEFAULT 440.0f
#endif
#ifndef AUDIO_CLICKY_FREQ_MIN
#define AUDIO_CLICKY_FREQ_MIN 65.0f
#endif
#ifndef AUDIO_CLICKY_FREQ_MAX
#define AUDIO_CLICKY_FREQ_MAX 1500.0f
#endif
#ifndef AUDIO_CLICKY_FREQ_FACTOR
#define AUDIO_CLICKY_FREQ_FACTOR 1.18921f
#endif
#ifndef AUDIO_CLICKY_FREQ_RANDOMNESS
#define AUDIO_CLICKY_FREQ_RANDOMNESS 0.05f
#endif
float clicky_freq = AUDIO_CLICKY_FREQ_DEFAULT;
float clicky_song[][2] = {{AUDIO_CLICKY_FREQ_DEFAULT, 3}, {AUDIO_CLICKY_FREQ_DEFAULT, 1}}; // 3 and 1 --> durations
#ifndef NO_MUSIC_MODE
extern bool music_activated;
extern bool midi_activated;
#endif
void clicky_play(void) {
#ifndef NO_MUSIC_MODE
if (music_activated || midi_activated) return;
#endif
clicky_song[0][0] = 2.0f * clicky_freq * (1.0f + AUDIO_CLICKY_FREQ_RANDOMNESS * ( ((float)rand()) / ((float)(RAND_MAX)) ) );
clicky_song[1][0] = clicky_freq * (1.0f + AUDIO_CLICKY_FREQ_RANDOMNESS * ( ((float)rand()) / ((float)(RAND_MAX)) ) );
PLAY_SONG(clicky_song);
}
#endif
static 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;
}
#ifdef AUDIO_CLICKY
if (keycode == CLICKY_TOGGLE && record->event.pressed) { clicky_enable = !clicky_enable; }
if (keycode == CLICKY_RESET && record->event.pressed) { clicky_freq = AUDIO_CLICKY_FREQ_DEFAULT; }
if (keycode == CLICKY_UP && record->event.pressed) {
float new_freq = clicky_freq * AUDIO_CLICKY_FREQ_FACTOR;
if (new_freq < AUDIO_CLICKY_FREQ_MAX) {
clicky_freq = new_freq;
}
}
if (keycode == CLICKY_TOGGLE && record->event.pressed) {
float new_freq = clicky_freq / AUDIO_CLICKY_FREQ_FACTOR;
if (new_freq > AUDIO_CLICKY_FREQ_MIN) {
clicky_freq = new_freq;
}
}
if ( clicky_enable ) {
if (record->event.pressed) {
stop_all_notes();
clicky_play();;
}
}
#endif // AUDIO_CLICKY
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() {}
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