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#include <stdlib.h>
#include <string.h>
#include "beats_face.h"
#include "watch.h"
const uint8_t BEAT_REFRESH_FREQUENCY = 8;
void beats_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr) {
(void) settings;
(void) watch_face_index;
(void) context_ptr;
if (*context_ptr == NULL) {
*context_ptr = malloc(sizeof(beats_face_state_t));
}
}
void beats_face_activate(movement_settings_t *settings, void *context) {
(void) settings;
beats_face_state_t *state = (beats_face_state_t *)context;
state->next_subsecond_update = 0;
state->last_centibeat_displayed = 0;
movement_request_tick_frequency(BEAT_REFRESH_FREQUENCY);
}
bool beats_face_loop(movement_event_t event, movement_settings_t *settings, void *context) {
(void) settings;
beats_face_state_t *state = (beats_face_state_t *)context;
if (event.event_type == EVENT_TICK && event.subsecond != state->next_subsecond_update) {
return true; // math is hard, don't do it if we don't have to.
}
char buf[16];
uint32_t centibeats;
watch_date_time date_time;
switch (event.event_type) {
case EVENT_ACTIVATE:
case EVENT_TICK:
date_time = watch_rtc_get_date_time();
centibeats = clock2beats(date_time.unit.hour, date_time.unit.minute, date_time.unit.second, event.subsecond, movement_timezone_offsets[settings->bit.time_zone]);
if (centibeats == state->last_centibeat_displayed) {
// we missed this update, try again next subsecond
state->next_subsecond_update = (event.subsecond + 1) % BEAT_REFRESH_FREQUENCY;
} else {
state->next_subsecond_update = (event.subsecond + 1 + (BEAT_REFRESH_FREQUENCY * 2 / 3)) % BEAT_REFRESH_FREQUENCY;
state->last_centibeat_displayed = centibeats;
}
sprintf(buf, "bt %6lu", centibeats);
watch_display_string(buf, 0);
break;
case EVENT_LOW_ENERGY_UPDATE:
if (!watch_tick_animation_is_running()) watch_start_tick_animation(432);
date_time = watch_rtc_get_date_time();
centibeats = clock2beats(date_time.unit.hour, date_time.unit.minute, date_time.unit.second, event.subsecond, movement_timezone_offsets[settings->bit.time_zone]);
sprintf(buf, "bt %4lu ", centibeats / 100);
watch_display_string(buf, 0);
break;
default:
movement_default_loop_handler(event, settings);
break;
}
return true;
}
void beats_face_resign(movement_settings_t *settings, void *context) {
(void) settings;
(void) context;
}
uint32_t clock2beats(uint32_t hours, uint32_t minutes, uint32_t seconds, uint32_t subseconds, int16_t utc_offset) {
uint32_t retval = seconds * 1000 + (subseconds * 1000) / (BEAT_REFRESH_FREQUENCY);
retval += 60 * minutes * 1000;
retval += hours * 60 * 60 * 1000;
retval -= (utc_offset - 60) * 60 * 1000;
retval /= 864; // convert to centibeats
retval %= 100000;
return retval;
}
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