打点函数画圆角矩形

void LCD_DrawRoundedRectangles(int16_t x, int16_t y, int16_t xl, int16_t yl, int8_t r)
{
    int16_t i,k;
    uint16_t color;
    
    if(x>319 || y>239)
        return;
    
    if(xl-(r*2)<0 || yl-(r*2)<0)
        return;
    
    for(i=0;i<yl;i++)
        LCD_DrawLine(x,y+i,x+xl,y+i);
    
    color = POINT_COLOR;
    POINT_COLOR = BACK_COLOR;
    
    for(i=0;i<r;i++)
    {
        LCD_DrawLine(x,y+i,x+r,y+i);
        LCD_DrawLine(x+xl-r,y+i,x+xl,y+i);
        LCD_DrawLine(x,y+yl-i,x+r,y+yl-i);
        LCD_DrawLine(x+xl-r,y+yl-i,x+xl,y+yl-i);
    }
    
    POINT_COLOR = color;
    
    LCD_DrawFullCircle1(x+r,y+r,r);
    LCD_DrawFullCircle1(x+xl-r,y+r,r);
    LCD_DrawFullCircle1(x+r,y+yl-r,r);
    LCD_DrawFullCircle1(x+xl-r,y+yl-r,r);
}

最后

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