blob: 07f84b7d19efc7a5de51bade452e82aa5cf1fd70 [file] [log] [blame]
/*
* Copyright (c) 2019 Jan Van Winkel <jan.van_winkel@dxplore.eu>
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <zephyr/kernel.h>
#include <lvgl.h>
#include "lvgl_display.h"
void lvgl_flush_cb_mono(lv_disp_drv_t *disp_drv, const lv_area_t *area, lv_color_t *color_p)
{
uint16_t w = area->x2 - area->x1 + 1;
uint16_t h = area->y2 - area->y1 + 1;
struct lvgl_disp_data *data = (struct lvgl_disp_data *)disp_drv->user_data;
const struct device *display_dev = data->display_dev;
struct display_buffer_descriptor desc;
const bool is_epd = data->cap.screen_info & SCREEN_INFO_EPD;
const bool is_last = lv_disp_flush_is_last(disp_drv);
if (is_epd && !data->blanking_on && !is_last) {
/*
* Turn on display blanking when using an EPD
* display. This prevents updates and the associated
* flicker if the screen is rendered in multiple
* steps.
*/
display_blanking_on(display_dev);
data->blanking_on = true;
}
desc.buf_size = (w * h) / 8U;
desc.width = w;
desc.pitch = w;
desc.height = h;
display_write(display_dev, area->x1, area->y1, &desc, (void *)color_p);
if (data->cap.screen_info & SCREEN_INFO_DOUBLE_BUFFER) {
display_write(display_dev, area->x1, area->y1, &desc, (void *)color_p);
}
if (is_epd && is_last && data->blanking_on) {
/*
* The entire screen has now been rendered. Update the
* display by disabling blanking.
*/
display_blanking_off(display_dev);
data->blanking_on = false;
}
lv_disp_flush_ready(disp_drv);
}
void lvgl_set_px_cb_mono(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)
{
struct lvgl_disp_data *data = (struct lvgl_disp_data *)disp_drv->user_data;
uint8_t *buf_xy;
uint8_t bit;
if (data->cap.screen_info & SCREEN_INFO_MONO_VTILED) {
buf_xy = buf + x + y / 8 * buf_w;
if (data->cap.screen_info & SCREEN_INFO_MONO_MSB_FIRST) {
bit = 7 - y % 8;
} else {
bit = y % 8;
}
} else {
buf_xy = buf + x / 8 + y * buf_w / 8;
if (data->cap.screen_info & SCREEN_INFO_MONO_MSB_FIRST) {
bit = 7 - x % 8;
} else {
bit = x % 8;
}
}
if (data->cap.current_pixel_format == PIXEL_FORMAT_MONO10) {
if (color.full == 0) {
*buf_xy &= ~BIT(bit);
} else {
*buf_xy |= BIT(bit);
}
} else {
if (color.full == 0) {
*buf_xy |= BIT(bit);
} else {
*buf_xy &= ~BIT(bit);
}
}
}
void lvgl_rounder_cb_mono(lv_disp_drv_t *disp_drv, lv_area_t *area)
{
struct lvgl_disp_data *data = (struct lvgl_disp_data *)disp_drv->user_data;
if (data->cap.screen_info & SCREEN_INFO_X_ALIGNMENT_WIDTH) {
area->x1 = 0;
area->x2 = data->cap.x_resolution - 1;
} else {
if (data->cap.screen_info & SCREEN_INFO_MONO_VTILED) {
area->y1 &= ~0x7;
area->y2 |= 0x7;
} else {
area->x1 &= ~0x7;
area->x2 |= 0x7;
}
}
}