class HexaPDF::Utils::BitStreamWriter

remaining bits (again as a string).
Once all data has been written, the #finalize method must be called to get the last
method returns those 16 bits as string and removes them from the internal cache.
stream using the #write method. Every time when at least 16 bits are available, the #write
This class allows one to write integers with a variable width of up to 16 bit to a bit
Helper class for writing out variable length integers one after another as bit stream.

def finalize

Retrieves the final (zero padded) bits as a string. 
def finalize
  result = [@bit_cache].pack('N')[0...(@available_bits / 8.0).ceil]
  initialize
  result
end

def initialize # :nodoc:

:nodoc: 
def initialize # :nodoc:
  @bit_cache = 0
  @available_bits = 0
end

def write(int, bits)

otherwise.
Returns a 16bit binary string if enough bits are available or an empty binary string

Writes the integer +int+ with a width of +bits+ to the bit stream. 
def write(int, bits)
  @available_bits += bits
  @bit_cache |= int << (32 - @available_bits)
  if @available_bits >= 16
    @available_bits -= 16
    result = (@bit_cache >> 24).chr << ((@bit_cache >> 16) & 0xFF).chr
    @bit_cache = (@bit_cache & 0xFFFF) << 16
    result
  else
    ''.b
  end
end