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# Copyright 2018-2019 The glTF-Blender-IO authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import typing
import array
from io_scene_gltf2.io.com import gltf2_io_constants
class BinaryData:
"""Store for gltf binary data that can later be stored in a buffer."""
def __init__(self, data: bytes):
if not isinstance(data, bytes):
raise TypeError("Data is not a bytes array")
self.data = data
def __eq__(self, other):
return self.data == other.data
def __hash__(self):
return hash(self.data)
@classmethod
def from_list(cls, lst: typing.List[typing.Any], gltf_component_type: gltf2_io_constants.ComponentType):
format_char = gltf2_io_constants.ComponentType.to_type_code(gltf_component_type)
return BinaryData(array.array(format_char, lst).tobytes())
@property
def byte_length(self):
return len(self.data)
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