1 /*
2 * Copyright (c) 2019 Jan Van Winkel <jan.van_winkel@dxplore.eu>
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6
7 #include <zephyr.h>
8 #include <lvgl.h>
9 #include "lvgl_display.h"
10
lvgl_flush_cb_mono(struct _disp_drv_t * disp_drv,const lv_area_t * area,lv_color_t * color_p)11 void lvgl_flush_cb_mono(struct _disp_drv_t *disp_drv,
12 const lv_area_t *area, lv_color_t *color_p)
13 {
14 uint16_t w = area->x2 - area->x1 + 1;
15 uint16_t h = area->y2 - area->y1 + 1;
16 const struct device *display_dev = (const struct device *)disp_drv->user_data;
17 struct display_capabilities cap;
18 struct display_buffer_descriptor desc;
19
20 display_get_capabilities(display_dev, &cap);
21
22 desc.buf_size = (w * h)/8U;
23 desc.width = w;
24 desc.pitch = w;
25 desc.height = h;
26 display_write(display_dev, area->x1, area->y1, &desc, (void *) color_p);
27 if (cap.screen_info & SCREEN_INFO_DOUBLE_BUFFER) {
28 display_write(display_dev, area->x1, area->y1, &desc,
29 (void *) color_p);
30 }
31
32 lv_disp_flush_ready(disp_drv);
33 }
34
35
lvgl_set_px_cb_mono(struct _disp_drv_t * disp_drv,uint8_t * buf,lv_coord_t buf_w,lv_coord_t x,lv_coord_t y,lv_color_t color,lv_opa_t opa)36 void lvgl_set_px_cb_mono(struct _disp_drv_t *disp_drv,
37 uint8_t *buf, lv_coord_t buf_w, lv_coord_t x, lv_coord_t y,
38 lv_color_t color, lv_opa_t opa)
39 {
40 const struct device *display_dev = (const struct device *)disp_drv->user_data;
41 uint8_t *buf_xy;
42 uint8_t bit;
43 struct display_capabilities cap;
44
45 display_get_capabilities(display_dev, &cap);
46
47 if (cap.screen_info & SCREEN_INFO_MONO_VTILED) {
48 buf_xy = buf + x + y/8 * buf_w;
49
50 if (cap.screen_info & SCREEN_INFO_MONO_MSB_FIRST) {
51 bit = 7 - y%8;
52 } else {
53 bit = y%8;
54 }
55 } else {
56 buf_xy = buf + x/8 + y * buf_w/8;
57
58 if (cap.screen_info & SCREEN_INFO_MONO_MSB_FIRST) {
59 bit = 7 - x%8;
60 } else {
61 bit = x%8;
62 }
63 }
64
65 if (cap.current_pixel_format == PIXEL_FORMAT_MONO10) {
66 if (color.full == 0) {
67 *buf_xy &= ~BIT(bit);
68 } else {
69 *buf_xy |= BIT(bit);
70 }
71 } else {
72 if (color.full == 0) {
73 *buf_xy |= BIT(bit);
74 } else {
75 *buf_xy &= ~BIT(bit);
76 }
77 }
78 }
79
lvgl_rounder_cb_mono(struct _disp_drv_t * disp_drv,lv_area_t * area)80 void lvgl_rounder_cb_mono(struct _disp_drv_t *disp_drv,
81 lv_area_t *area)
82 {
83 const struct device *display_dev = (const struct device *)disp_drv->user_data;
84 struct display_capabilities cap;
85
86 display_get_capabilities(display_dev, &cap);
87
88 if (cap.screen_info & SCREEN_INFO_X_ALIGNMENT_WIDTH) {
89 area->x1 = 0;
90 area->x2 = cap.x_resolution - 1;
91 } else {
92 if (cap.screen_info & SCREEN_INFO_MONO_VTILED) {
93 area->y1 &= ~0x7;
94 area->y2 |= 0x7;
95 } else {
96 area->x1 &= ~0x7;
97 area->x2 |= 0x7;
98 }
99 }
100 }
101
