100 lines
2.7 KiB
C
100 lines
2.7 KiB
C
/*
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* Copyright (c) 2006-2021, 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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* 2021-12-17 Wayne The first version
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*/
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#include <lvgl.h>
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#define LOG_TAG "lvgl.disp"
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#define DBG_ENABLE
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#define DBG_SECTION_NAME LOG_TAG
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#define DBG_LEVEL DBG_ERROR
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#define DBG_COLOR
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#include <rtdbg.h>
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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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static lv_disp_drv_t disp_drv; /*Descriptor of a display driver*/
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static rt_device_t lcd_device = 0;
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static struct rt_device_graphic_info info;
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static void lcd_fb_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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/* Rendering */
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struct rt_device_rect_info rect;
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rect.x = area->x1;
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rect.y = area->y1;
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rect.width = area->x2 - area->x1 + 1;
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rect.height = area->y2 - area->y1 + 1;
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rt_device_control(lcd_device, RTGRAPHIC_CTRL_RECT_UPDATE, &rect);
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lv_disp_flush_ready(disp_drv);
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}
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void lcd_perf_monitor(struct _lv_disp_drv_t *disp_drv, uint32_t time, uint32_t px)
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{
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rt_kprintf("Elapsed: %dms, Pixel: %d, Bytes:%d\n", time, px, px * sizeof(lv_color_t));
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}
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void lv_port_disp_init(void)
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{
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rt_err_t result;
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void *buf1 = RT_NULL;
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lcd_device = rt_device_find("lcd");
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if (lcd_device == 0)
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{
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LOG_E("error!");
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return;
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}
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/* get framebuffer address */
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result = rt_device_control(lcd_device, RTGRAPHIC_CTRL_GET_INFO, &info);
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if (result != RT_EOK && info.framebuffer == RT_NULL)
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{
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LOG_E("error!");
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/* get device information failed */
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return;
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}
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RT_ASSERT(info.bits_per_pixel == 8 || info.bits_per_pixel == 16 ||
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info.bits_per_pixel == 24 || info.bits_per_pixel == 32);
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buf1 = (void *)info.framebuffer;
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rt_kprintf("LVGL: Use one buffers - buf1@%08x\n", buf1);
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/*Initialize `disp_buf` with the buffer(s).*/
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lv_disp_draw_buf_init(&disp_buf, buf1, RT_NULL, info.width * info.height);
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result = rt_device_open(lcd_device, 0);
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if (result != RT_EOK)
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{
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LOG_E("error!");
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return;
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}
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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 = info.width;
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disp_drv.ver_res = info.height;
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/*Set a display buffer*/
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disp_drv.draw_buf = &disp_buf;
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/*Write the internal buffer (draw_buf) to the display*/
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disp_drv.flush_cb = lcd_fb_flush;
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/* Called after every refresh cycle to tell the rendering and flushing time + the number of flushed pixels */
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//disp_drv.monitor_cb = lcd_perf_monitor;
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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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