1 /**
2  * @file lv_draw_line.c
3  *
4  */
5 
6 /*********************
7  *      INCLUDES
8  *********************/
9 #include "lv_draw_private.h"
10 #include "../core/lv_refr.h"
11 #include "../misc/lv_math.h"
12 #include "../misc/lv_types.h"
13 #include "../stdlib/lv_string.h"
14 
15 /*********************
16  *      DEFINES
17  *********************/
18 
19 /**********************
20  *      TYPEDEFS
21  **********************/
22 
23 /**********************
24  *  STATIC PROTOTYPES
25  **********************/
26 
27 /**********************
28  *  STATIC VARIABLES
29  **********************/
30 
31 /**********************
32  *      MACROS
33  **********************/
34 
35 /**********************
36  *   GLOBAL FUNCTIONS
37  **********************/
38 
lv_draw_line_dsc_init(lv_draw_line_dsc_t * dsc)39 void LV_ATTRIBUTE_FAST_MEM lv_draw_line_dsc_init(lv_draw_line_dsc_t * dsc)
40 {
41     lv_memzero(dsc, sizeof(lv_draw_line_dsc_t));
42     dsc->width = 1;
43     dsc->opa = LV_OPA_COVER;
44     dsc->color = lv_color_black();
45     dsc->base.dsc_size = sizeof(lv_draw_line_dsc_t);
46 }
47 
lv_draw_task_get_line_dsc(lv_draw_task_t * task)48 lv_draw_line_dsc_t * lv_draw_task_get_line_dsc(lv_draw_task_t * task)
49 {
50     return task->type == LV_DRAW_TASK_TYPE_LINE ? (lv_draw_line_dsc_t *)task->draw_dsc : NULL;
51 }
52 
lv_draw_line(lv_layer_t * layer,const lv_draw_line_dsc_t * dsc)53 void LV_ATTRIBUTE_FAST_MEM lv_draw_line(lv_layer_t * layer, const lv_draw_line_dsc_t * dsc)
54 {
55     if(dsc->width == 0) return;
56     if(dsc->opa <= LV_OPA_MIN) return;
57 
58     LV_PROFILER_DRAW_BEGIN;
59 
60     lv_area_t a;
61     a.x1 = (int32_t)LV_MIN(dsc->p1.x, dsc->p2.x) - dsc->width;
62     a.x2 = (int32_t)LV_MAX(dsc->p1.x, dsc->p2.x) + dsc->width;
63     a.y1 = (int32_t)LV_MIN(dsc->p1.y, dsc->p2.y) - dsc->width;
64     a.y2 = (int32_t)LV_MAX(dsc->p1.y, dsc->p2.y) + dsc->width;
65 
66     lv_draw_task_t * t = lv_draw_add_task(layer, &a);
67 
68     t->draw_dsc = lv_malloc(sizeof(*dsc));
69     LV_ASSERT_MALLOC(t->draw_dsc);
70     lv_memcpy(t->draw_dsc, dsc, sizeof(*dsc));
71     t->type = LV_DRAW_TASK_TYPE_LINE;
72 
73     lv_draw_finalize_task_creation(layer, t);
74     LV_PROFILER_DRAW_END;
75 }
76 
77 /**********************
78  *   STATIC FUNCTIONS
79  **********************/
80