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# SPDX-License-Identifier: Apache-2.0
# Copyright 2018-2021 The glTF-Blender-IO authors.
import os
import sys
from pathlib import Path
import bpy
from ...io.com.gltf2_io_debug import print_console
def dll_path() -> Path:
"""
Get the DLL path depending on the underlying platform.
:return: DLL path.
"""
lib_name = 'extern_draco'
blender_root = Path(bpy.app.binary_path).parent
python_lib = Path('{v[0]}.{v[1]}/python/lib'.format(v=bpy.app.version))
python_version = 'python{v[0]}.{v[1]}'.format(v=sys.version_info)
path = os.environ.get('BLENDER_EXTERN_DRACO_LIBRARY_PATH')
if path is None:
path = {
'win32': blender_root / python_lib / 'site-packages',
'linux': blender_root / python_lib / python_version / 'site-packages',
'darwin': blender_root.parent / 'Resources' / python_lib / python_version / 'site-packages'
}.get(sys.platform)
else:
path = Path(path)
library_name = {
'win32': '{}.dll'.format(lib_name),
'linux': 'lib{}.so'.format(lib_name),
'darwin': 'lib{}.dylib'.format(lib_name)
}.get(sys.platform)
if path is None or library_name is None:
print_console('WARNING', 'Unsupported platform {}, Draco mesh compression is unavailable'.format(sys.platform))
return path / library_name
def dll_exists(quiet=False) -> bool:
"""
Checks whether the DLL path exists.
:return: True if the DLL exists.
"""
exists = dll_path().exists()
if quiet is False:
print("'{}' ".format(dll_path().absolute()) + ("exists, draco mesh compression is available" if exists else
"{} {} {}".format(
"does not exist, draco mesh compression not available,",
"please add it or create environment variable BLENDER_EXTERN_DRACO_LIBRARY_PATH",
"pointing to the folder"
)))
return exists
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