828F/drivers/lcd.c

/*
 * Copyright (c) 2006-2021, RT-Thread Development Team
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs:
 * Date           Author       Notes
 * 2025-12-06     Administrator       the first version
 */
/* lcd.c *//* lcd.c */
#include "lcd.h"
#include "lcdfont.h"  // 确保该文件存在，否则注释掉字体相关函数
#include <string.h>

uint32_t g_point_color = RED;
uint32_t g_back_color = WHITE;
_lcd_dev lcddev;

int lcd_init(void) {
  //  lcddev.id = 0x7016; // 模拟 ID

  //  rt_kprintf("LCD ID:%x\r\n", lcddev.id);

    if (lcdltdc.pwidth != 0) {
        lcd_display_dir(RGB_DIR); // 横屏
    }

    lcd_clear(WHITE);

    return 0;
}
INIT_APP_EXPORT(lcd_init);

void lcd_rgb_test(void)
{
    rt_kprintf("Starting LCD RGB flash test...\n");

    for (int cycle = 0; cycle < 10; cycle++) {
        lcd_clear(RED);     // 全屏红色
        rt_thread_mdelay(500);

        lcd_clear(GREEN);   // 全屏绿色
        rt_thread_mdelay(500);

        lcd_clear(BLUE);    // 全屏蓝色
        rt_thread_mdelay(500);
    }

    lcd_clear(WHITE);       // 最后恢复白色
    rt_kprintf("LCD RGB test finished.\n");
}

void lcd_display_dir(uint8_t dir) {
    lcddev.dir = dir;
    ltdc_display_dir(dir);
    lcddev.width = lcdltdc.width;
    lcddev.height = lcdltdc.height;
}

void lcd_clear(uint32_t color) {
    if (lcdltdc.pwidth != 0) {
        ltdc_clear(color);
    }
}

void lcd_draw_point(uint16_t x, uint16_t y, uint32_t color) {
    if (lcdltdc.pwidth != 0) {
        ltdc_draw_point(x, y, color);
    }
}

void lcd_fill(uint16_t sx, uint16_t sy, uint16_t ex, uint16_t ey, uint32_t color) {
    if (lcdltdc.pwidth != 0) {
        ltdc_fill(sx, sy, ex, ey, color);
    }
}

// === 最小实现：避免编译错误 ===
void lcd_draw_line(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, uint32_t color) {
    // 简单 Bresenham 算法（可选）
    lcd_draw_point(x1, y1, color);
    lcd_draw_point(x2, y2, color);
}

void lcd_draw_rectangle(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, uint32_t color) {
    lcd_draw_line(x1, y1, x2, y1, color);
    lcd_draw_line(x1, y2, x2, y2, color);
    lcd_draw_line(x1, y1, x1, y2, color);
    lcd_draw_line(x2, y1, x2, y2, color);
}

void lcd_draw_circle(uint16_t x0, uint16_t y0, uint8_t r, uint32_t color) {
    // 空实现或简单点
    lcd_draw_point(x0, y0, color);
}

void lcd_fill_circle(uint16_t x, uint16_t y, uint16_t r, uint32_t color) {
    lcd_draw_point(x, y, color);
}

void lcd_show_char(uint16_t x, uint16_t y, char chr, uint8_t size, uint8_t mode, uint32_t color) {
    // 若无字体，跳过
}

void lcd_show_num(uint16_t x, uint16_t y, uint32_t num, uint8_t len, uint8_t size, uint32_t color) {}
void lcd_show_xnum(uint16_t x, uint16_t y, uint32_t num, uint8_t len, uint8_t size, uint8_t mode, uint32_t color) {}
void lcd_show_string(uint16_t x, uint16_t y, uint16_t width, uint16_t height, uint8_t size, char *p, uint32_t color) {}

// 工具函数（若未使用可删除）
/*static uint32_t lcd_pow(uint8_t m, uint8_t n) {
    uint32_t result = 1;
    while (n--) result *= m;
    return result;
}*/