EBOOT升级进度条

怼烎@ 2022-07-14 16:27 141阅读 0赞

VOID BspEbootUpdateShowProgressBar(BYTE phase, BYTE percent)
    
    {
      
    
        if (!g_bScreenInited || percent > 100)
    
            return;
    
    
    
        BspEbootUpdateProgressString(phase, 0);//，调用DrawString()来打印对应的字符串
    
    
        if (percent < oldPercent)
    
            FillRectangle(g_dwPgrBorderLeft + 1, g_dwPgrBorderTop + 1, g_dwPgrBorderLeft + PGR_BAR_WIDTH,
    
                          g_dwPgrBorderTop + PGR_BAR_HEIGHT, g_hCurrentDC->bkcolor);
    
    
    
        oldPercent = percent;
    
    
    
        FillRectangle(g_dwPgrBorderLeft + 1, g_dwPgrBorderTop + 1, g_dwPgrBorderLeft + PGR_BAR_WIDTH* percent / 100,
    
                      g_dwPgrBorderTop + PGR_BAR_HEIGHT, XBLUE);//设定填充宽度
    
    ..................................................................................................................................
    
    }

# 参考文章：(BSP不一样 代码不同)    #

# WINCE6开机进度条   #

大致思路，在NBoot 或EBoot 加开机进度条，由于WINCE 启动主要时间都花在读取NK ，因此每读取一定的页，就在屏上画一条固定高度的线，并记录画线的位置，下次接着画，直到读取完NK ，这样就产生的进度条的效果。  
参考Mini2440 Nboot。

先定义进度条颜色、位置及长宽，关键代码如下：

1.  \#define PROGRESS\_BAR\_R 0x00   
2.  \#define PROGRESS\_BAR\_G 0xFF   
3.  \#define PROGRESS\_BAR\_B 0x00   
4.    
5.  //设置启动条的位置和长宽   
6.  \#define PROGRESS\_BAR\_TOP    225   
7.  \#define PROGRESS\_BAR\_LEFT   145   
8.  \#define PROGRESS\_BAR\_WIDTH  512   
9.  \#define PROGRESS\_BAR\_HEIGHT  20   
10. \#define PROGRESS\_BAR\_COLOR  ( ( (PROGRESS\_BAR\_R >> 3) << 11) | ((PROGRESS\_BAR\_G >> 2) << 5) | (PROGRESS\_BAR\_B >> 3) )

\#define PROGRESS\_BAR\_R 0x00 \#define PROGRESS\_BAR\_G 0xFF \#define PROGRESS\_BAR\_B 0x00 //设置启动条的位置和长宽 \#define PROGRESS\_BAR\_TOP 225 \#define PROGRESS\_BAR\_LEFT 145 \#define PROGRESS\_BAR\_WIDTH 512 \#define PROGRESS\_BAR\_HEIGHT 20 \#define PROGRESS\_BAR\_COLOR ( ( (PROGRESS\_BAR\_R >> 3) << 11) | ((PROGRESS\_BAR\_G >> 2) << 5) | (PROGRESS\_BAR\_B >> 3) )

在读取NK 前计算出读取开始画线的位置

1.  unsigned  char  \*LCDCurrentAddr;  
2.  LCDCurrentAddr = (unsigned char  \*)LCD\_ADDR + PROGRESS\_BAR\_TOP \* LCD\_WIDTH \* 2 + PROGRESS\_BAR\_LEFT \* 2; // LCD\_ADDR为屏地址

unsigned char \*LCDCurrentAddr; LCDCurrentAddr = (unsigned char \*)LCD\_ADDR + PROGRESS\_BAR\_TOP \* LCD\_WIDTH \* 2 + PROGRESS\_BAR\_LEFT \* 2;// LCD\_ADDR为屏地址

根据 NK 长度及进条度长度，计算出每读取多少页就画一条线，画线关键代码

1.  unsigned  short  \*p = (unsigned  short  \*)LCDCurrentAddr;  
2.  for  (y = 0; y < PROGRESS\_BAR\_HEIGHT; y++)  
3.  \{  
4.      \*p = PROGRESS\_BAR\_COLOR;  
5.      p += LCD\_WIDTH;  
6.  \}  
7.  LCDCurrentAddr += 2;

unsigned short \*p = (unsigned short \*)LCDCurrentAddr; for (y = 0; y < PROGRESS\_BAR\_HEIGHT; y++) \{ \*p = PROGRESS\_BAR\_COLOR; p += LCD\_WIDTH; \} LCDCurrentAddr += 2;

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