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# 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 bpy
import os
import tempfile
from os.path import dirname, join, isfile, basename
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 get_image_path(gltf, img_idx):
"""Return image path."""
pyimage = gltf.data.images[img_idx]
image_name = "Image_" + str(img_idx)
if pyimage.uri:
sep = ';base64,'
if pyimage.uri[:5] == 'data:':
idx = pyimage.uri.find(sep)
if idx != -1:
return False, None, None
if isfile(join(dirname(gltf.filename), pyimage.uri)):
return True, join(dirname(gltf.filename), pyimage.uri), basename(join(dirname(gltf.filename), pyimage.uri))
else:
gltf.log.error("Missing file (index " + str(img_idx) + "): " + pyimage.uri)
return False, None, None
if pyimage.buffer_view is None:
return False, None, None
return False, None, None
@staticmethod
def create(gltf, img_idx, tex_index, tex_transform):
"""Image creation."""
img = gltf.data.images[img_idx]
img.blender_image_name = None
if gltf.import_settings['import_pack_images'] is False:
# Images are not packed (if image is a real file)
real, path, img_name = BlenderImage.get_image_path(gltf, img_idx)
if real is True:
# Check if image is already loaded
for img_ in bpy.data.images:
if img_.filepath == path:
# Already loaded, not needed to reload it
img.blender_image_name = img_.name
img_['tex_transform'][str(tex_index)] = tex_transform
return
blender_image = bpy.data.images.load(path)
blender_image.name = img_name
blender_image['tex_transform'] = {}
blender_image['tex_transform'][str(tex_index)] = tex_transform
img.blender_image_name = blender_image.name
return
# Check if the file is already loaded (packed file)
file_creation_needed = True
for img_ in bpy.data.images:
if hasattr(img_, "gltf_index") and img_['gltf_index'] == img_idx:
file_creation_needed = False
img.blender_image_name = img_.name
img_['tex_transform'][tex_index] = tex_transform
break
if file_creation_needed is True:
# Create a temp image, pack, and delete image
tmp_image = tempfile.NamedTemporaryFile(delete=False)
img_data, img_name = BinaryData.get_image_data(gltf, img_idx)
if img_name is not None:
tmp_image.write(img_data)
tmp_image.close()
blender_image = bpy.data.images.load(tmp_image.name)
blender_image.pack()
blender_image.name = img_name
blender_image['tex_transform'] = {}
blender_image['tex_transform'][str(tex_index)] = tex_transform
img.blender_image_name = blender_image.name
blender_image['gltf_index'] = img_idx
os.remove(tmp_image.name)
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