encode_bin.py 文件源码

def _add_array_helper(self, data, array_type, prop_type):
        assert(isinstance(data, array.array))
        assert(data.typecode == array_type)

        length = len(data)

        if _IS_BIG_ENDIAN:
            data = data[:]
            data.byteswap()
        data = data.tobytes()

        # mimic behavior of fbxconverter (also common sense)
        # we could make this configurable.
        encoding = 0 if len(data) <= 128 else 1
        if encoding == 0:
            pass
        elif encoding == 1:
            data = zlib.compress(data, 1)

        comp_len = len(data)

        data = pack('<3I', length, encoding, comp_len) + data

        self.props_type.append(prop_type)
        self.props.append(data)