driver.h不一样了4.0 b2中STM32ZE的rtgui初始化函数如何写？

nukes

如题：
我用STM32ZE

我看3.2中rtgui是这样写的:
struct rtgui_graphic_driver _rtgui_lcd_driver =
{
    "lcd",
    2,
    240,
    320,
    rt_hw_lcd_update,
    rt_hw_lcd_get_framebuffer,
    rt_hw_lcd_set_pixel,
    rt_hw_lcd_get_pixel,
    rt_hw_lcd_draw_hline,
    rt_hw_lcd_draw_vline,
    rt_hw_lcd_draw_raw_hline
};

rt_err_t rt_hw_lcd_init(void)
{
  /* add lcd driver into graphic driver */
  rtgui_graphic_driver_add(&_rtgui_lcd_driver);

  return RT_EOK;
}

void rtgui_init(void *p)
{
  rtgui_rect_t rect;

  /* 初始化RT-Thread/GUI server */
  rtgui_system_server_init();

  /* 注_册面板1 */
  rect.x1 = 0;
  rect.y1 = 0;
  rect.x2 = 240;
  rect.y2 = 24;
  /* 注_册区域, 名字，以及位置 */
  rtgui_panel_register("info", &rect);

  /* 注_册面板2 */
  rect.x1 = 0;
  rect.y1 = 24;
  rect.x2 = 240;
  rect.y2 = 320;
  /* 注_册区域, 名字，以及位置 */
  rtgui_panel_register("main", &rect);
  rtgui_panel_set_default_focused("main");

  /* 初始化LCD驱动 */
  rt_hw_lcd_init();

  /* 初始化workbench应用 */
  workbench_init();
}

SVN66中增加了这段：
        _rtgui_lcd_driver.name            = "lcd";
        _rtgui_lcd_driver.byte_per_pixel  = 2;
        _rtgui_lcd_driver.width           = 240;
        _rtgui_lcd_driver.height          = 320;
        _rtgui_lcd_driver.draw_hline      = rt_hw_lcd_draw_hline;
        _rtgui_lcd_driver.draw_raw_hline  = rt_hw_lcd_draw_raw_hline;
        _rtgui_lcd_driver.draw_vline      = rt_hw_lcd_draw_vline;
        _rtgui_lcd_driver.get_pixel       = rt_hw_lcd_get_pixel;
        _rtgui_lcd_driver.set_pixel       = rt_hw_lcd_set_pixel;
        _rtgui_lcd_driver.screen_update   = rt_hw_lcd_update;
        _rtgui_lcd_driver.get_framebuffer = rt_hw_lcd_get_framebuffer;

mini4020中这样写：

struct rtgui_graphic_driver _rtgui_lcd_driver;
struct rtgui_graphic_driver_ops  _rtgui_graphic_driver_ops;      
void radio_rtgui_init(void)   
{
       rtgui_rect_t rect;   //      rtgui_color_t c=0xff;
       rtgui_system_server_init();
          /* register dock panel */
       rect.x1 = 0;
       rect.y1 = 0;
       rect.x2 = 320;
       rect.y2 = 25;
       rtgui_panel_register("info", &rect);
       rtgui_panel_set_nofocused("info");
          /* register main panel */
       rect.x1 = 0;
       rect.y1 = 25;
       rect.x2 = 320;
       rect.y2 = 240
;       rtgui_panel_register("main", &rect);
       rtgui_panel_set_default_focused("main");
      _rtgui_graphic_driver_ops.set_pixel=lcd_set_pixel;
      _rtgui_graphic_driver_ops.get_pixel=lcd_get_pixel;
   _rtgui_graphic_driver_ops.draw_hline=lcd_draw_hline;
   _rtgui_graphic_driver_ops.draw_vline=lcd_draw_vline;
   _rtgui_graphic_driver_ops.draw_raw_hline=lcd_draw_raw_hline;
                _rtgui_lcd_driver.bits_per_pixel  = 16;
           _rtgui_lcd_driver.width           = 320;
           _rtgui_lcd_driver.height          = 240;
           _rtgui_lcd_driver.ops = &_rtgui_graphic_driver_ops;
           //  _rtgui_lcd_driver.screen_update   = lcd_update;
           // _rtgui_lcd_driver.get_framebuffer = lcd_get_framebuffer;
              sep4020_lcd_init();
           rt_memset((char*)pVideoBuffer,0xff,320*240*2); // rt_memcpy((char*)pVideoBuffer,pic,320*240*2);  //TESTING IMAGE
  /* add lcd driver into graphic driver */
      // rtgui_graphic_driver_add(&_rtgui_lcd_driver);

这几种写法的区别是什么呢？？