if ( formatEntry->widthFactor > 1u )
  {
    widthMask = width / formatEntry->widthFactor;
    if ( widthMask )
    {
      mipTotal = 0;
      if ( !(_WORD)widthMask )
      {
        mipTotal = 16;
        widthMask = (unsigned int)widthMask >> 16;
      }
      if ( !(_BYTE)widthMask )
      {
        mipTotal += 8;
        widthMask = (unsigned int)widthMask >> 8;
      }
      if ( !(widthMask & 0xF) )
      {
        mipTotal += 4;
        widthMask = (unsigned int)widthMask >> 4;
      }
      if ( !(widthMask & 3) )
      {
        mipTotal += 2;
        widthMask = (unsigned int)widthMask >> 2;
      }
      if ( !(widthMask & 1) )
        ++mipTotal;
    }
    else
    {
      mipTotal = -1;
    }
    if ( (unsigned __int8)mipTotal < (unsigned int)mipShift )
      mipShift = (unsigned __int8)mipTotal;
    formatEntry = v47;
  }