Initial commit of glTF 2.0 importer/exporter

Official Khronos Group Blender glTF 2.0 importer and exporter.

glTF specification: https://github.com/KhronosGroup/glTF
The upstream repository can be found here:
https://github.com/KhronosGroup/glTF-Blender-IO

Reviewed By: Bastien, Campbell

Differential Revision: https://developer.blender.org/D3929

1 files changed, 36 insertions, 0 deletions

diff --git a/io_scene_gltf2/io/exp/gltf2_io_binary_data.py b/io_scene_gltf2/io/exp/gltf2_io_binary_data.py
new file mode 100755
index 00000000..42f6d5d7
--- /dev/null
+++ b/io_scene_gltf2/io/exp/gltf2_io_binary_data.py
@@ -0,0 +1,36 @@
+# Copyright 2018 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
+
+    @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)
+