116 lines
2.6 KiB
C
116 lines
2.6 KiB
C
/**
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* @file lv_refr.h
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*
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*/
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#ifndef LV_REFR_H
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#define LV_REFR_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*********************
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* INCLUDES
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*********************/
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#include "lv_obj.h"
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#include <stdbool.h>
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/*********************
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* DEFINES
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*********************/
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#define LV_REFR_TASK_PRIO LV_TASK_PRIO_MID
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/**********************
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* TYPEDEFS
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**********************/
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/**********************
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* STATIC PROTOTYPES
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**********************/
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/**********************
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* STATIC VARIABLES
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**********************/
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/**********************
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* MACROS
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**********************/
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/**********************
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* GLOBAL FUNCTIONS
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**********************/
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/**
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* Initialize the screen refresh subsystem
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*/
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void _lv_refr_init(void);
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/**
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* Redraw the invalidated areas now.
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* Normally the redrawing is periodically executed in `lv_timer_handler` but a long blocking process
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* can prevent the call of `lv_timer_handler`. In this case if the GUI is updated in the process
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* (e.g. progress bar) this function can be called when the screen should be updated.
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* @param disp pointer to display to refresh. NULL to refresh all displays.
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*/
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void lv_refr_now(lv_disp_t * disp);
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/**
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* Redrawn on object an all its children using the passed draw context
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* @param draw pointer to an initialized draw context
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* @param obj the start object from the redraw should start
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*/
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void lv_refr_obj(lv_draw_ctx_t * draw_ctx, lv_obj_t * obj);
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/**
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* Invalidate an area on display to redraw it
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* @param area_p pointer to area which should be invalidated (NULL: delete the invalidated areas)
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* @param disp pointer to display where the area should be invalidated (NULL can be used if there is
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* only one display)
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*/
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void _lv_inv_area(lv_disp_t * disp, const lv_area_t * area_p);
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/**
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* Get the display which is being refreshed
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* @return the display being refreshed
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*/
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lv_disp_t * _lv_refr_get_disp_refreshing(void);
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/**
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* Set the display which is being refreshed.
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* It shouldn't be used directly by the user.
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* It can be used to trick the drawing functions about there is an active display.
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* @param the display being refreshed
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*/
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void _lv_refr_set_disp_refreshing(lv_disp_t * disp);
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#if LV_USE_PERF_MONITOR
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/**
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* Reset FPS counter
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*/
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void lv_refr_reset_fps_counter(void);
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/**
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* Get the average FPS
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* @return the average FPS
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*/
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uint32_t lv_refr_get_fps_avg(void);
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#endif
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/**
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* Called periodically to handle the refreshing
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* @param timer pointer to the timer itself
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*/
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void _lv_disp_refr_timer(lv_timer_t * timer);
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/**********************
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* STATIC FUNCTIONS
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**********************/
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#ifdef __cplusplus
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} /*extern "C"*/
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#endif
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#endif /*LV_REFR_H*/
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