panki/fz-bpmtapper
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This commit is contained in:
Felix Pankratz 2022-09-17 19:52:25 +02:00
parent 7cf0096ccd
commit 3a70dcc28a
1 changed files with 10 additions and 5 deletions
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15
bpm.c
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@ -34,7 +34,7 @@ typedef struct {
static void init_queue(queue *q) {
q->size = 0;
q->max_size = 15;
q->max_size = 5;
q->front = NULL;
q->rear = NULL;
}
@ -57,10 +57,11 @@ static void queue_add(queue *q, int value) {
// check if empty
if (q->rear == NULL) {
q->front = tmp;
q->rear = tmp;
} else {
q->rear->next = tmp;
q->rear = tmp;
}
q->rear = tmp;
q->size++;
}
@ -70,14 +71,14 @@ static float queue_avg(queue *q) {
return avg;
} else {
node *tmp;
int sum = 0;
float sum = 0.0;
tmp = q->front;
while (tmp != NULL) {
sum = sum + tmp->interval;
tmp = tmp->next;
}
avg = (float)sum / q->size;
avg = sum / q->size;
return avg;
}
}
@ -143,6 +144,10 @@ static void render_callback(Canvas* const canvas, void* ctx) {
canvas_draw_str_aligned(canvas, 5, 15, AlignLeft, AlignBottom, string_get_cstr(tempStr));
string_reset(tempStr);
string_printf(tempStr, "Queue: %d", bpm_state->tap_queue->size);
canvas_draw_str_aligned(canvas, 50, 15, AlignLeft, AlignBottom, string_get_cstr(tempStr));
string_reset(tempStr);
string_printf(tempStr, "Interval: %dms", bpm_state->interval);
canvas_draw_str_aligned(canvas, 5, 25, AlignLeft, AlignBottom, string_get_cstr(tempStr));
string_reset(tempStr);
@ -214,8 +219,8 @@ int32_t bpm_tapper_app(void* p) {
bpm_state->taps++;
uint32_t new_stamp = furi_get_tick();
bpm_state->interval = new_stamp - bpm_state->last_stamp;
queue_add(bpm_state->tap_queue, bpm_state->interval);
bpm_state->last_stamp = new_stamp;
queue_add(bpm_state->tap_queue, bpm_state->interval);
float avg = queue_avg(bpm_state->tap_queue);
float bps = 1.0 / (avg / 1000.0);
bpm_state->bpm = bps * 60.0;