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# Copyright 2018-2021 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 bpy
import os
import tempfile
from os.path import dirname, join, isfile, basename, normpath
import urllib.parse
import re
from ...io.imp.gltf2_io_binary import BinaryData
# Note that Image is not a glTF2.0 object
class BlenderImage():
"""Manage Image."""
def __new__(cls, *args, **kwargs):
raise RuntimeError("%s should not be instantiated" % cls)
@staticmethod
def create(gltf, img_idx):
"""Image creation."""
img = gltf.data.images[img_idx]
img_name = img.name
if img.blender_image_name is not None:
# Image is already used somewhere
return
is_binary = False
is_placeholder = False
num_images = len(bpy.data.images)
if img.uri is not None and not img.uri.startswith('data:'):
# Image stored in a file
path = join(dirname(gltf.filename), _uri_to_path(img.uri))
path = os.path.abspath(path)
if bpy.data.is_saved and bpy.context.preferences.filepaths.use_relative_paths:
try:
path = bpy.path.relpath(path)
except:
# May happen on Windows if on different drives, eg. C:\ and D:\
pass
img_name = img_name or basename(path)
try:
blender_image = bpy.data.images.load(
path,
check_existing=True,
)
except RuntimeError:
gltf.log.error("Missing image file (index %d): %s" % (img_idx, path))
blender_image = _placeholder_image(img_name, os.path.abspath(path))
is_placeholder = True
else:
# Image stored as data => pack
is_binary = True
img_data = BinaryData.get_image_data(gltf, img_idx)
if img_data is None:
return
img_name = 'Image_%d' % img_idx
# Create image, width and height are dummy values
img_pack = bpy.data.images.new(img_name, 8, 8)
# Set packed file data
img_pack.pack(data=img_data.tobytes(), data_len=len(img_data))
img_pack.source = 'FILE'
img.blender_image_name = img_pack.name
if is_binary is False:
if len(bpy.data.images) != num_images: # If created a new image
blender_image.name = img_name
img.blender_image_name = img_name
needs_pack = gltf.import_settings['import_pack_images']
if not is_placeholder and needs_pack:
blender_image.pack()
def _placeholder_image(name, path):
image = bpy.data.images.new(name, 128, 128)
# allow the path to be resolved later
image.filepath = path
image.source = 'FILE'
return image
def _uri_to_path(uri):
uri = urllib.parse.unquote(uri)
return normpath(uri)
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