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/kernel.h>
8 #include <lvgl.h>
9 #include "lvgl_display.h"
10
lvgl_flush_cb_24bit(lv_disp_drv_t * disp_drv,const lv_area_t * area,lv_color_t * color_p)11 void lvgl_flush_cb_24bit(lv_disp_drv_t *disp_drv,
12 const lv_area_t *area, lv_color_t *color_p)
13 {
14 struct lvgl_disp_data *data =
15 (struct lvgl_disp_data *)disp_drv->user_data;
16 uint16_t w = area->x2 - area->x1 + 1;
17 uint16_t h = area->y2 - area->y1 + 1;
18 struct display_buffer_descriptor desc;
19
20 desc.buf_size = w * 3U * h;
21 desc.width = w;
22 desc.pitch = w;
23 desc.height = h;
24 display_write(data->display_dev, area->x1, area->y1, &desc,
25 (void *) color_p);
26
27 lv_disp_flush_ready(disp_drv);
28 }
29
lvgl_set_px_cb_24bit(lv_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)30 void lvgl_set_px_cb_24bit(lv_disp_drv_t *disp_drv,
31 uint8_t *buf, lv_coord_t buf_w, lv_coord_t x, lv_coord_t y,
32 lv_color_t color, lv_opa_t opa)
33 {
34 uint8_t *buf_xy = buf + x * 3U + y * 3U * buf_w;
35 lv_color32_t converted_color;
36
37 #ifdef CONFIG_LV_COLOR_DEPTH_32
38 if (opa != LV_OPA_COVER) {
39 lv_color_t mix_color;
40
41 mix_color.ch.red = *buf_xy;
42 mix_color.ch.green = *(buf_xy+1);
43 mix_color.ch.blue = *(buf_xy+2);
44 color = lv_color_mix(color, mix_color, opa);
45 }
46 #endif
47
48 converted_color.full = lv_color_to32(color);
49 *buf_xy = converted_color.ch.red;
50 *(buf_xy + 1) = converted_color.ch.green;
51 *(buf_xy + 2) = converted_color.ch.blue;
52 }
53
