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- /*
- * Copyright (c) 2006-2023, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date Author Notes
- * 2021-11-24 Rbb666 The first version
- */
- #include <lvgl.h>
- #include "hal_data.h"
- #if DLG_LVGL_USE_GPU_RA6M3
- #include "lv_port_gpu.h"
- #endif
- #ifdef PKG_USING_ILI9341
- #include "lcd_ili9341.h"
- #else
- #include "lcd_port.h"
- #endif
- #define COLOR_BUFFER (LV_HOR_RES_MAX * LV_VER_RES_MAX / 4)
- /*A static or global variable to store the buffers*/
- static lv_disp_draw_buf_t disp_buf;
- /*Descriptor of a display driver*/
- static lv_disp_drv_t disp_drv;
- static struct rt_device_graphic_info info;
- /*Static or global buffer(s). The second buffer is optional*/
- // 0x1FFE0000 0x20040000
- __attribute__((section(".ARM.__at_0x1FFE0000"))) lv_color_t buf_1[COLOR_BUFFER];
- #if !DLG_LVGL_USE_GPU_RA6M3
- static void color_to16_maybe(lv_color16_t *dst, lv_color_t *src)
- {
- #if (LV_COLOR_DEPTH == 16)
- dst->full = src->full;
- #else
- dst->ch.blue = src->ch.blue;
- dst->ch.green = src->ch.green;
- dst->ch.red = src->ch.red;
- #endif
- }
- #endif
- static void disp_flush(lv_disp_drv_t *disp_drv, const lv_area_t *area, lv_color_t *color_p)
- {
- #ifdef PKG_USING_ILI9341
- lcd_fill_array_spi(area->x1, area->y1, area->x2, area->y2, color_p);
- #elif DLG_LVGL_USE_GPU_RA6M3
- lv_port_gpu_flush();
- #else
- int x1, x2, y1, y2;
- x1 = area->x1;
- x2 = area->x2;
- y1 = area->y1;
- y2 = area->y2;
- /*Return if the area is out the screen*/
- if (x2 < 0)
- return;
- if (y2 < 0)
- return;
- if (x1 > info.width - 1)
- return;
- if (y1 > info.height - 1)
- return;
- /*Truncate the area to the screen*/
- int32_t act_x1 = x1 < 0 ? 0 : x1;
- int32_t act_y1 = y1 < 0 ? 0 : y1;
- int32_t act_x2 = x2 > info.width - 1 ? info.width - 1 : x2;
- int32_t act_y2 = y2 > info.height - 1 ? info.height - 1 : y2;
- uint32_t x;
- uint32_t y;
- long int location = 0;
- /* color_p is a buffer pointer; the buffer is provided by LVGL */
- lv_color16_t *fbp16 = (lv_color16_t *)info.framebuffer;
- for (y = act_y1; y <= act_y2; y++)
- {
- for (x = act_x1; x <= act_x2; x++)
- {
- location = (x) + (y) * info.width;
- color_to16_maybe(&fbp16[location], color_p);
- color_p++;
- }
- color_p += x2 - act_x2;
- }
- #endif
- lv_disp_flush_ready(disp_drv);
- }
- void lv_port_disp_init(void)
- {
- #ifdef PKG_USING_ILI9341
- spi_lcd_init(20);
- #else
- static rt_device_t device;
- /* LCD Device Init */
- device = rt_device_find("lcd");
- RT_ASSERT(device != RT_NULL);
- if (rt_device_open(device, RT_DEVICE_OFLAG_RDWR) == RT_EOK)
- {
- rt_device_control(device, RTGRAPHIC_CTRL_GET_INFO, &info);
- }
- RT_ASSERT(info.bits_per_pixel == 8 || info.bits_per_pixel == 16 ||
- info.bits_per_pixel == 24 || info.bits_per_pixel == 32);
- #endif
- /*Initialize `disp_buf` with the buffer(s). With only one buffer use NULL instead buf_2 */
- lv_disp_draw_buf_init(&disp_buf, buf_1, NULL, COLOR_BUFFER);
- lv_disp_drv_init(&disp_drv); /*Basic initialization*/
- /*Set the resolution of the display*/
- disp_drv.hor_res = LV_HOR_RES_MAX;
- disp_drv.ver_res = LV_VER_RES_MAX;
- /*Set a display buffer*/
- disp_drv.draw_buf = &disp_buf;
- /*Used to copy the buffer's content to the display*/
- disp_drv.flush_cb = disp_flush;
- #if DLG_LVGL_USE_GPU_RA6M3
- /* Initialize GPU module */
- lv_port_gpu_init();
- #endif /* LV_PORT_DISP_GPU_EN */
- /*Finally register the driver*/
- lv_disp_drv_register(&disp_drv);
- }
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