1 /**
2 * @file lv_draw_vglite_line.c
3 *
4 */
5
6 /**
7 * MIT License
8 *
9 * Copyright 2022, 2023 NXP
10 *
11 * Permission is hereby granted, free of charge, to any person obtaining a copy
12 * of this software and associated documentation files (the "Software"), to deal
13 * in the Software without restriction, including without limitation the rights to
14 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
15 * the Software, and to permit persons to whom the Software is furnished to do so,
16 * subject to the following conditions:
17 *
18 * The above copyright notice and this permission notice (including the next paragraph)
19 * shall be included in all copies or substantial portions of the Software.
20 *
21 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
22 * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
23 * PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
24 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
25 * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
26 * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27 *
28 */
29
30 /*********************
31 * INCLUDES
32 *********************/
33
34 #include "lv_draw_vglite_line.h"
35
36 #if LV_USE_GPU_NXP_VG_LITE
37 #include "lv_vglite_buf.h"
38 #include <math.h>
39
40 /*********************
41 * DEFINES
42 *********************/
43
44 /**********************
45 * TYPEDEFS
46 **********************/
47
48 /**********************
49 * STATIC PROTOTYPES
50 **********************/
51
52 /**********************
53 * STATIC VARIABLES
54 **********************/
55
56 /**********************
57 * MACROS
58 **********************/
59
60 /**********************
61 * GLOBAL FUNCTIONS
62 **********************/
63
lv_gpu_nxp_vglite_draw_line(const lv_point_t * point1,const lv_point_t * point2,const lv_area_t * clip_area,const lv_draw_line_dsc_t * dsc)64 lv_res_t lv_gpu_nxp_vglite_draw_line(const lv_point_t * point1, const lv_point_t * point2,
65 const lv_area_t * clip_area, const lv_draw_line_dsc_t * dsc)
66 {
67 vg_lite_error_t err = VG_LITE_SUCCESS;
68 vg_lite_path_t path;
69 vg_lite_color_t vgcol; /* vglite takes ABGR */
70 vg_lite_buffer_t * vgbuf = lv_vglite_get_dest_buf();
71 vg_lite_cap_style_t cap_style = (dsc->round_start || dsc->round_end) ? VG_LITE_CAP_ROUND : VG_LITE_CAP_BUTT;
72 vg_lite_join_style_t join_style = (dsc->round_start || dsc->round_end) ? VG_LITE_JOIN_ROUND : VG_LITE_JOIN_MITER;
73
74 bool is_dashed = (dsc->dash_width && dsc->dash_gap);
75
76 vg_lite_float_t stroke_dash_pattern[2] = {0, 0};
77 uint32_t stroke_dash_count = 0;
78 vg_lite_float_t stroke_dash_phase = 0;
79 if(is_dashed) {
80 stroke_dash_pattern[0] = (vg_lite_float_t)dsc->dash_width;
81 stroke_dash_pattern[1] = (vg_lite_float_t)dsc->dash_gap;
82 stroke_dash_count = sizeof(stroke_dash_pattern) / sizeof(vg_lite_float_t);
83 stroke_dash_phase = (vg_lite_float_t)dsc->dash_width / 2;
84 }
85
86 /* Choose vglite blend mode based on given lvgl blend mode */
87 vg_lite_blend_t vglite_blend_mode = lv_vglite_get_blend_mode(dsc->blend_mode);
88
89 /*** Init path ***/
90 lv_coord_t width = dsc->width;
91
92 int32_t line_path[] = { /*VG line path*/
93 VLC_OP_MOVE, point1->x, point1->y,
94 VLC_OP_LINE, point2->x, point2->y,
95 VLC_OP_END
96 };
97
98 err = vg_lite_init_path(&path, VG_LITE_S32, VG_LITE_HIGH, sizeof(line_path), line_path,
99 (vg_lite_float_t)clip_area->x1, (vg_lite_float_t)clip_area->y1,
100 ((vg_lite_float_t)clip_area->x2) + 1.0f, ((vg_lite_float_t)clip_area->y2) + 1.0f);
101 VG_LITE_ERR_RETURN_INV(err, "Init path failed.");
102
103 vg_lite_matrix_t matrix;
104 vg_lite_identity(&matrix);
105
106 lv_color32_t col32 = { .full = lv_color_to32(dsc->color) }; /*Convert color to RGBA8888*/
107 vg_lite_buffer_format_t color_format = LV_COLOR_DEPTH == 16 ? VG_LITE_BGRA8888 : VG_LITE_ABGR8888;
108 if(lv_vglite_premult_and_swizzle(&vgcol, col32, dsc->opa, color_format) != LV_RES_OK)
109 VG_LITE_RETURN_INV("Premultiplication and swizzle failed.");
110
111 /*** Draw line ***/
112 err = vg_lite_set_draw_path_type(&path, VG_LITE_DRAW_STROKE_PATH);
113 VG_LITE_ERR_RETURN_INV(err, "Set draw path type failed.");
114
115 err = vg_lite_set_stroke(&path, cap_style, join_style, width, 8, stroke_dash_pattern, stroke_dash_count,
116 stroke_dash_phase, vgcol);
117 VG_LITE_ERR_RETURN_INV(err, "Set stroke failed.");
118
119 err = vg_lite_update_stroke(&path);
120 VG_LITE_ERR_RETURN_INV(err, "Update stroke failed.");
121
122 lv_vglite_set_scissor(clip_area);
123
124 err = vg_lite_draw(vgbuf, &path, VG_LITE_FILL_NON_ZERO, &matrix, vglite_blend_mode, vgcol);
125 VG_LITE_ERR_RETURN_INV(err, "Draw line failed.");
126
127 if(lv_vglite_run() != LV_RES_OK)
128 VG_LITE_RETURN_INV("Run failed.");
129
130 lv_vglite_disable_scissor();
131
132 err = vg_lite_clear_path(&path);
133 VG_LITE_ERR_RETURN_INV(err, "Clear path failed.");
134
135 return LV_RES_OK;
136 }
137
138 /**********************
139 * STATIC FUNCTIONS
140 **********************/
141
142 #endif /*LV_USE_GPU_NXP_VG_LITE*/
143
