绘图函数基于画点函数实现，单片机画一幅大图的时间太长，希望可以优化为字节的方式刷图

关于字节方式刷图可以参考以下函数，测试下基本没问题。

```
void bspLcdLattice_setAreaRam(STRU_DisAreaInfo Area, const INT8U *DisValue)
{
    INT8U X = Area.DisArea_X;
    INT8U Y = Area.DisArea_Y;
    INT8U Width = Area.DisArea_Width;
    INT8U High = Area.DisArea_High;
    INT8U drawPixX, drawPixY; //显示区域坐标
    INT8U fontPixX; //显示内容坐标
    INT8U pixIndex;
    const INT8U *pData;
    INT8U filData;
    INT8U filLen;

//判断显示区域信息并且刷新高度大于0，防止数据错误
    if (((X+Width) > LcdLattice_XPixel)||((Y+High) > LcdLattice_YPixel)||(Width == 0)||(High == 0))
    {
        return;
    }

drawPixX = X;
    fontPixX = 0;
    while (drawPixX <= (X+Width-1))
    {
        if (cfgIO_quitCondition())
        {
            return;
        }
        drawPixY = Y;
        pixIndex = 0;
        pData = DisValue + fontPixX;
        while (drawPixY <= (Y+High-1))
        {
            if (drawPixY%8 != 0)
            {
                filLen = (drawPixY+7)/8*8 - drawPixY;
                filData = *pData<<(8-filLen);
                cfgLCD_imageCache[drawPixY/8][drawPixX] |= filData;
            }
            else
            {
                filLen = (Y+High-drawPixY) > 8 ? 8 : (Y+High-drawPixY);
                filData = (*(pData+Width)<<(8-pixIndex))|(*pData>>pixIndex);
                cfgLCD_imageCache[drawPixY/8][drawPixX] |= (filData&(0xFF>>(8-filLen)));
            }
            drawPixY += filLen;
            pixIndex += filLen;
            if (pixIndex >= 8)
            {
                pixIndex %= 8;
                pData += Width;
            }
        }
        drawPixX++;
        fontPixX++;
    }
}
```

Polarix/SimpleGUI

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