From 2504a922a369c8487b18b9d5f09aad9e9743e8b9 Mon Sep 17 00:00:00 2001 From: Joey Castillo Date: Wed, 1 Dec 2021 11:30:19 -0500 Subject: movement: help beats face update the screen less often --- movement/watch_faces/complications/beats_face.c | 19 +++++++++++++++++-- movement/watch_faces/complications/beats_face.h | 5 +++++ 2 files changed, 22 insertions(+), 2 deletions(-) (limited to 'movement') diff --git a/movement/watch_faces/complications/beats_face.c b/movement/watch_faces/complications/beats_face.c index 9241bf73..519d3e4e 100644 --- a/movement/watch_faces/complications/beats_face.c +++ b/movement/watch_faces/complications/beats_face.c @@ -8,17 +8,25 @@ const uint8_t BEAT_REFRESH_FREQUENCY = 8; void beats_face_setup(movement_settings_t *settings, void ** context_ptr) { (void) settings; (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; - (void) context; + 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; - (void) context; + 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; @@ -29,6 +37,13 @@ bool beats_face_loop(movement_event_t event, movement_settings_t *settings, void 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 %6ld", centibeats); watch_display_string(buf, 0); diff --git a/movement/watch_faces/complications/beats_face.h b/movement/watch_faces/complications/beats_face.h index 343e9a27..bbe2396c 100644 --- a/movement/watch_faces/complications/beats_face.h +++ b/movement/watch_faces/complications/beats_face.h @@ -3,6 +3,11 @@ #include "movement.h" +typedef struct { + int8_t next_subsecond_update; + uint32_t last_centibeat_displayed; +} beats_face_state_t; + uint32_t clock2beats(uint32_t hours, uint32_t minutes, uint32_t seconds, uint32_t subseconds, int16_t utc_offset); void beats_face_setup(movement_settings_t *settings, void ** context_ptr); void beats_face_activate(movement_settings_t *settings, void *context); -- cgit v1.2.3