panki/fz-bpmtapper
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somewhat sliding window, but buggy if not full

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This commit is contained in:
Felix Pankratz 2022-09-17 18:54:41 +02:00
parent 5a293670ab
commit 7cf0096ccd
1 changed files with 25 additions and 16 deletions
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41
bpm.c
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@ -16,12 +16,6 @@ typedef struct {
InputEvent input;
} PluginEvent;
typedef struct {
int taps;
double bpm;
uint32_t last_stamp;
uint32_t interval;
} BPMTapper;
//QUEUE
@ -59,16 +53,15 @@ static void queue_add(queue *q, int value) {
tmp->next = NULL;
if (q->size == q->max_size) {
queue_remove(q);
}
// check if empty
if (q->rear == NULL) {
q->front = tmp;
} else {
// check if empty
if (q->rear == NULL) {
q->front = tmp;
} else {
q->rear->next = tmp;
}
q->rear = tmp;
q->size++;
q->rear->next = tmp;
}
q->rear = tmp;
q->size++;
}
static float queue_avg(queue *q) {
@ -95,6 +88,14 @@ static float queue_avg(queue *q) {
// furi_hal_rtc_get_datetime(&datetime);
// return furi_hal_rtc_datetime_to_timestamp(&datetime);
//}
//
typedef struct {
int taps;
double bpm;
uint32_t last_stamp;
uint32_t interval;
queue *tap_queue;
} BPMTapper;
static void show_hello() {
@ -162,6 +163,10 @@ static void bpm_state_init(BPMTapper* const plugin_state) {
plugin_state->bpm = 120.0;
plugin_state->last_stamp = 0;
plugin_state->interval = 500;
queue *q;
q = malloc(sizeof(queue));
init_queue(q);
plugin_state->tap_queue = q;
}
int32_t bpm_tapper_app(void* p) {
@ -209,8 +214,10 @@ 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;
float bps = 1.0 / (bpm_state->interval / 1000.0);
float avg = queue_avg(bpm_state->tap_queue);
float bps = 1.0 / (avg / 1000.0);
bpm_state->bpm = bps * 60.0;
break;
case InputKeyBack:
@ -233,7 +240,9 @@ int32_t bpm_tapper_app(void* p) {
view_port_free(view_port);
furi_message_queue_free(event_queue);
delete_mutex(&state_mutex);
//free(bpm_state);
queue *q = bpm_state->tap_queue;
free(q);
free(bpm_state);
return 0;
}