| # SPDX-FileCopyrightText: Copyright 2020-2021 Arm Limited and/or its affiliates <open-source-office@arm.com> |
| # |
| # SPDX-License-Identifier: Apache-2.0 |
| # |
| # 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 |
| # |
| # 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. |
| # |
| # Description: |
| # Dispatcher for reading a neural network model. |
| from . import tflite_model_semantic |
| from . import tflite_reader |
| from . import tosa_model_semantic |
| from . import tosa_reader |
| from .errors import InputFileError |
| from .nn_graph import NetworkType |
| |
| |
| class ModelReaderOptions: |
| def __init__(self, batch_size=1): |
| self.batch_size = batch_size |
| |
| def __str__(self): |
| return type(self).__name__ + ": " + str(self.__dict__) |
| |
| __repr__ = __str__ |
| |
| |
| def read_model(fname, options, feed_dict=None, output_node_names=None, initialisation_nodes=None): |
| if fname.endswith(".tflite"): |
| if feed_dict is None: |
| feed_dict = {} |
| if output_node_names is None: |
| output_node_names = [] |
| if initialisation_nodes is None: |
| initialisation_nodes = [] |
| |
| nng = tflite_reader.read_tflite( |
| fname, |
| options.batch_size, |
| feed_dict=feed_dict, |
| output_node_names=output_node_names, |
| initialisation_nodes=initialisation_nodes, |
| ) |
| nng = tflite_model_semantic.tflite_semantic_checker(nng) |
| |
| return (nng, NetworkType.TFLite) |
| elif fname.endswith(".tosa"): |
| if feed_dict is None: |
| feed_dict = {} |
| if output_node_names is None: |
| output_node_names = [] |
| if initialisation_nodes is None: |
| initialisation_nodes = [] |
| |
| nng = tosa_reader.read_tosa( |
| fname, |
| options.batch_size, |
| feed_dict=feed_dict, |
| output_node_names=output_node_names, |
| initialisation_nodes=initialisation_nodes, |
| ) |
| nng = tosa_model_semantic.tosa_semantic_checker(nng) |
| |
| return (nng, NetworkType.TOSA) |
| else: |
| raise InputFileError(fname, "Unsupported file extension. Only .tflite and .tosa files are supported") |