4.5.2 LTS Compatibility

4.5.2_LTS/io_scene_fbx/data_types.py

@@ -0,0 +1,62 @@
+# SPDX-FileCopyrightText: 2006-2012 assimp team
+# SPDX-FileCopyrightText: 2013 Blender Foundation
+#
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+BOOL = b'B'[0]
+CHAR = b'C'[0]
+INT8 = b'Z'[0]
+INT16 = b'Y'[0]
+INT32 = b'I'[0]
+INT64 = b'L'[0]
+FLOAT32 = b'F'[0]
+FLOAT64 = b'D'[0]
+BYTES = b'R'[0]
+STRING = b'S'[0]
+INT32_ARRAY = b'i'[0]
+INT64_ARRAY = b'l'[0]
+FLOAT32_ARRAY = b'f'[0]
+FLOAT64_ARRAY = b'd'[0]
+BOOL_ARRAY = b'b'[0]
+BYTE_ARRAY = b'c'[0]
+
+# Some other misc defines
+# Known combinations so far - supposed meaning: A = animatable, A+ = animated, U = UserProp
+# VALID_NUMBER_FLAGS = {b'A', b'A+', b'AU', b'A+U'}  # Not used...
+
+# array types - actual length may vary (depending on underlying C implementation)!
+import array
+
+# For now, bytes and bool are assumed always 1byte.
+ARRAY_BOOL = 'b'
+ARRAY_BYTE = 'B'
+
+ARRAY_INT32 = None
+ARRAY_INT64 = None
+for _t in 'ilq':
+    size = array.array(_t).itemsize
+    if size == 4:
+        ARRAY_INT32 = _t
+    elif size == 8:
+        ARRAY_INT64 = _t
+    if ARRAY_INT32 and ARRAY_INT64:
+        break
+if not ARRAY_INT32:
+    raise Exception("Impossible to get a 4-bytes integer type for array!")
+if not ARRAY_INT64:
+    raise Exception("Impossible to get an 8-bytes integer type for array!")
+
+ARRAY_FLOAT32 = None
+ARRAY_FLOAT64 = None
+for _t in 'fd':
+    size = array.array(_t).itemsize
+    if size == 4:
+        ARRAY_FLOAT32 = _t
+    elif size == 8:
+        ARRAY_FLOAT64 = _t
+    if ARRAY_FLOAT32 and ARRAY_FLOAT64:
+        break
+if not ARRAY_FLOAT32:
+    raise Exception("Impossible to get a 4-bytes float type for array!")
+if not ARRAY_FLOAT64:
+    raise Exception("Impossible to get an 8-bytes float type for array!")