panki/fz-metronome
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working beats per bar, note size fixed to 4

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This commit is contained in:
Felix Pankratz 2022-09-18 20:24:42 +02:00
parent 7460e50be0
commit e6927559df
1 changed files with 23 additions and 11 deletions
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34
metronome.c
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@ -27,6 +27,7 @@ typedef struct {
bool playing;
int beats_per_bar;
int note_length;
int current_beat;
FuriTimer* timer;
} MetronomeState;
@ -73,20 +74,22 @@ static void input_callback(InputEvent* input_event, FuriMessageQueue* event_queu
furi_message_queue_put(event_queue, &event, FuriWaitForever);
}
static void timer_callback() {
//UNUSED(metronome_state);
furi_hal_speaker_start(440.0f, 1.0f);
static void timer_callback(void* ctx) {
MetronomeState* metronome_state = acquire_mutex((ValueMutex*)ctx, 25);
if (metronome_state->current_beat == 1) {
furi_hal_speaker_start(440.0f, 1.0f);
} else {
furi_hal_speaker_start(220.0f, 1.0f);
};
metronome_state->current_beat++;
if (metronome_state->current_beat > metronome_state->beats_per_bar) {
metronome_state->current_beat = 1;
}
furi_delay_ms(BEEP_DELAY_MS);
furi_hal_speaker_stop();
release_mutex((ValueMutex*)ctx, metronome_state);
}
static void metronome_state_init(MetronomeState* const metronome_state) {
metronome_state->bpm = 120.0;
metronome_state->playing = false;
metronome_state->beats_per_bar = 4;
metronome_state->note_length = 4;
metronome_state->timer = furi_timer_alloc(timer_callback, FuriTimerTypePeriodic, metronome_state);
}
static uint32_t bpm_to_sleep_ticks(double bpm) {
// calculate time between beeps
@ -128,6 +131,14 @@ static void cycle_beats_per_bar(MetronomeState* metronome_state) {
}
}
static void metronome_state_init(MetronomeState* const metronome_state) {
metronome_state->bpm = 120.0;
metronome_state->playing = false;
metronome_state->beats_per_bar = 4;
metronome_state->note_length = 4;
metronome_state->current_beat = 1;
}
int32_t metronome_app() {
FuriMessageQueue* event_queue = furi_message_queue_alloc(8, sizeof(PluginEvent));
@ -145,6 +156,7 @@ int32_t metronome_app() {
ViewPort* view_port = view_port_alloc();
view_port_draw_callback_set(view_port, render_callback, &state_mutex);
view_port_input_callback_set(view_port, input_callback, event_queue);
metronome_state->timer = furi_timer_alloc(timer_callback, FuriTimerTypePeriodic, &state_mutex);
// Open GUI and register view_port
Gui* gui = furi_record_open("gui");
@ -175,7 +187,7 @@ int32_t metronome_app() {
case InputKeyOk:
metronome_state->playing = !metronome_state->playing;
if (metronome_state->playing) {
furi_timer_start(metronome_state->timer, bpm_to_sleep_ticks(metronome_state->bpm));
furi_timer_start(metronome_state->timer, bpm_to_sleep_ticks(metronome_state->bpm));
} else {
furi_timer_stop(metronome_state->timer);
}