61 lines
1.9 KiB
C
61 lines
1.9 KiB
C
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/*
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* Copyright (c) 2006-2022, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2022-02-01 Rudy Lo The first version
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*/
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#include <lvgl.h>
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#include <rtthread.h>
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#include "drv_spi_ili9488.h"
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#define MY_DISP_HOR_RES (LCD_W)
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#define DISP_BUFFER_LINES (LCD_H / 5)
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/*A static or global variable to store the buffers*/
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static lv_disp_draw_buf_t disp_buf;
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/*Descriptor of a display driver*/
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static lv_disp_drv_t disp_drv;
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/*Static or global buffer(s). The second buffer is optional*/
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static lv_color_t buf_1[MY_DISP_HOR_RES * DISP_BUFFER_LINES];
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//static lv_color_t buf_2[MY_DISP_HOR_RES * DISP_BUFFER_LINES];
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/*Flush the content of the internal buffer the specific area on the display
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*You can use DMA or any hardware acceleration to do this operation in the background but
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*'lv_disp_flush_ready()' has to be called when finished.*/
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static void disp_flush(lv_disp_drv_t * disp_drv, const lv_area_t * area, lv_color_t * color_p)
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{
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/* color_p is a buffer pointer; the buffer is provided by LVGL */
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lcd_fill_array(area->x1, area->y1, area->x2, area->y2, color_p);
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/*IMPORTANT!!!
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*Inform the graphics library that you are ready with the flushing*/
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lv_disp_flush_ready(disp_drv);
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}
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void lv_port_disp_init(void)
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{
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/*Initialize `disp_buf` with the buffer(s). With only one buffer use NULL instead buf_2 */
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lv_disp_draw_buf_init(&disp_buf, buf_1, RT_NULL, MY_DISP_HOR_RES * DISP_BUFFER_LINES);
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lv_disp_drv_init(&disp_drv); /*Basic initialization*/
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/*Set the resolution of the display*/
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disp_drv.hor_res = LCD_W;
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disp_drv.ver_res = LCD_H;
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/*Set a display buffer*/
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disp_drv.draw_buf = &disp_buf;
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/*Used to copy the buffer's content to the display*/
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disp_drv.flush_cb = disp_flush;
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/*Finally register the driver*/
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lv_disp_drv_register(&disp_drv);
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}
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