Files
lvgl/src/draw/lv_draw_line.c
2024-03-27 08:52:31 +01:00

76 lines
1.8 KiB
C

/**
* @file lv_draw_line.c
*
*/
/*********************
* INCLUDES
*********************/
#include "../core/lv_refr.h"
#include "../misc/lv_math.h"
#include "../misc/lv_types.h"
#include "../stdlib/lv_string.h"
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
/**********************
* STATIC PROTOTYPES
**********************/
/**********************
* STATIC VARIABLES
**********************/
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
void LV_ATTRIBUTE_FAST_MEM lv_draw_line_dsc_init(lv_draw_line_dsc_t * dsc)
{
lv_memzero(dsc, sizeof(lv_draw_line_dsc_t));
dsc->width = 1;
dsc->opa = LV_OPA_COVER;
dsc->color = lv_color_black();
}
lv_draw_line_dsc_t * lv_draw_task_get_line_dsc(lv_draw_task_t * task)
{
return task->type == LV_DRAW_TASK_TYPE_LINE ? (lv_draw_line_dsc_t *)task->draw_dsc : NULL;
}
void LV_ATTRIBUTE_FAST_MEM lv_draw_line(lv_layer_t * layer, const lv_draw_line_dsc_t * dsc)
{
if(dsc->width == 0) return;
if(dsc->opa <= LV_OPA_MIN) return;
LV_PROFILER_BEGIN;
lv_area_t a;
a.x1 = (int32_t)LV_MIN(dsc->p1.x, dsc->p2.x) - dsc->width;
a.x2 = (int32_t)LV_MAX(dsc->p1.x, dsc->p2.x) + dsc->width;
a.y1 = (int32_t)LV_MIN(dsc->p1.y, dsc->p2.y) - dsc->width;
a.y2 = (int32_t)LV_MAX(dsc->p1.y, dsc->p2.y) + dsc->width;
lv_draw_task_t * t = lv_draw_add_task(layer, &a);
t->draw_dsc = lv_malloc(sizeof(*dsc));
lv_memcpy(t->draw_dsc, dsc, sizeof(*dsc));
t->type = LV_DRAW_TASK_TYPE_LINE;
lv_draw_finalize_task_creation(layer, t);
LV_PROFILER_END;
}
/**********************
* STATIC FUNCTIONS
**********************/