Difficult-Rocket/libs/pyglet/model/codecs/__init__.py

# ----------------------------------------------------------------------------
# pyglet
# Copyright (c) 2006-2008 Alex Holkner
# Copyright (c) 2008-2021 pyglet contributors
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
#  * Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#  * Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in
#    the documentation and/or other materials provided with the
#    distribution.
#  * Neither the name of pyglet nor the names of its
#    contributors may be used to endorse or promote products
#    derived from this software without specific prior written
#    permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
# ----------------------------------------------------------------------------

from pyglet.util import CodecRegistry, Decoder, Encoder, DecodeException, EncodeException


registry = CodecRegistry()
add_decoders = registry.add_decoders
add_encoders = registry.add_encoders
get_decoders = registry.get_decoders
get_encoders = registry.get_encoders


class ModelDecodeException(DecodeException):
    pass


class ModelEncodeException(EncodeException):
    pass


class ModelDecoder(Decoder):
    def decode(self, filename, file, batch, group):
        """Decode the given file object and return an instance of `Model`.
        Throws ModelDecodeException if there is an error.  filename
        can be a file type hint.
        """
        raise NotImplementedError()


class ModelEncoder(Encoder):

    def encode(self, model, filename, file):
        """Encode the given model to the given file.  filename
        provides a hint to the file format desired.  options are
        encoder-specific, and unknown options should be ignored or
        issue warnings.
        """
        raise NotImplementedError()


def add_default_codecs():
    # Add all bundled codecs. These should be listed in order of
    # preference. This is called automatically by pyglet.model.

    try:
        from pyglet.model.codecs import obj
        registry.add_decoders(obj)
    except ImportError:
        pass

    # TODO: complete this decoder, and enable it by default
    # try:
    #     from pyglet.model.codecs import gltf
    #     add_decoders(gltf)
    # except ImportError:
    #     pass