1 /**
2 * @file lv_draw_vg_lite_triangle.c
3 *
4 */
5
6 /*********************
7 * INCLUDES
8 *********************/
9
10 #include "../../misc/lv_area_private.h"
11 #include "lv_draw_vg_lite.h"
12
13 #if LV_USE_DRAW_VG_LITE
14
15 #include "lv_vg_lite_utils.h"
16 #include "lv_vg_lite_path.h"
17 #include "lv_draw_vg_lite_type.h"
18 #include "lv_vg_lite_grad.h"
19
20 /*********************
21 * DEFINES
22 *********************/
23
24 /**********************
25 * TYPEDEFS
26 **********************/
27
28 /**********************
29 * STATIC PROTOTYPES
30 **********************/
31
32 /**********************
33 * STATIC VARIABLES
34 **********************/
35
36 /**********************
37 * MACROS
38 **********************/
39
40 /**********************
41 * GLOBAL FUNCTIONS
42 **********************/
43
lv_draw_vg_lite_triangle(lv_draw_unit_t * draw_unit,const lv_draw_triangle_dsc_t * dsc)44 void lv_draw_vg_lite_triangle(lv_draw_unit_t * draw_unit, const lv_draw_triangle_dsc_t * dsc)
45 {
46 lv_area_t tri_area;
47 tri_area.x1 = (int32_t)LV_MIN3(dsc->p[0].x, dsc->p[1].x, dsc->p[2].x);
48 tri_area.y1 = (int32_t)LV_MIN3(dsc->p[0].y, dsc->p[1].y, dsc->p[2].y);
49 tri_area.x2 = (int32_t)LV_MAX3(dsc->p[0].x, dsc->p[1].x, dsc->p[2].x);
50 tri_area.y2 = (int32_t)LV_MAX3(dsc->p[0].y, dsc->p[1].y, dsc->p[2].y);
51
52 bool is_common;
53 lv_area_t clip_area;
54 is_common = lv_area_intersect(&clip_area, &tri_area, draw_unit->clip_area);
55 if(!is_common) return;
56
57 LV_PROFILER_DRAW_BEGIN;
58
59 lv_draw_vg_lite_unit_t * u = (lv_draw_vg_lite_unit_t *)draw_unit;
60
61 lv_vg_lite_path_t * path = lv_vg_lite_path_get(u, VG_LITE_FP32);
62 lv_vg_lite_path_set_bounding_box_area(path, &clip_area);
63 lv_vg_lite_path_move_to(path, dsc->p[0].x, dsc->p[0].y);
64 lv_vg_lite_path_line_to(path, dsc->p[1].x, dsc->p[1].y);
65 lv_vg_lite_path_line_to(path, dsc->p[2].x, dsc->p[2].y);
66 lv_vg_lite_path_close(path);
67 lv_vg_lite_path_end(path);
68
69 vg_lite_path_t * vg_lite_path = lv_vg_lite_path_get_path(path);
70
71 LV_VG_LITE_ASSERT_DEST_BUFFER(&u->target_buffer);
72 LV_VG_LITE_ASSERT_PATH(vg_lite_path);
73
74 vg_lite_matrix_t matrix = u->global_matrix;
75 LV_VG_LITE_ASSERT_MATRIX(&matrix);
76
77 if(dsc->bg_grad.dir != LV_GRAD_DIR_NONE) {
78 #if LV_USE_VECTOR_GRAPHIC
79 lv_vg_lite_draw_grad_helper(
80 u,
81 &u->target_buffer,
82 vg_lite_path,
83 &tri_area,
84 &dsc->bg_grad,
85 &matrix,
86 VG_LITE_FILL_EVEN_ODD,
87 VG_LITE_BLEND_SRC_OVER);
88 #else
89 LV_LOG_WARN("Gradient fill is not supported without VECTOR_GRAPHIC");
90 #endif
91 }
92 else { /* normal fill */
93 vg_lite_color_t color = lv_vg_lite_color(dsc->bg_color, dsc->bg_opa, true);
94 LV_PROFILER_DRAW_BEGIN_TAG("vg_lite_draw");
95 LV_VG_LITE_CHECK_ERROR(vg_lite_draw(
96 &u->target_buffer,
97 vg_lite_path,
98 VG_LITE_FILL_EVEN_ODD,
99 &matrix,
100 VG_LITE_BLEND_SRC_OVER,
101 color));
102 LV_PROFILER_DRAW_END_TAG("vg_lite_draw");
103 }
104
105 lv_vg_lite_path_drop(u, path);
106
107 LV_PROFILER_DRAW_END;
108 }
109
110 /**********************
111 * STATIC FUNCTIONS
112 **********************/
113
114 #endif
115
