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# Copyright (C) 2020 Arm Limited or its affiliates. All rights reserved.
#
# 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:
# Defines the class Shape4D.
from .numeric_util import full_shape
class Shape4D:
"""
4D Shape (in NHWC format)
"""
def __init__(self, shape, base=1):
assert shape is not None
assert len(shape) <= 4
self._shape4D = tuple(full_shape(4, shape, base))
def __str__(self):
return f"<Shape4D {self.as_list()}>"
def __eq__(self, other):
return self._shape4D == other._shape4D
def clone(self):
return Shape4D(self.as_list())
@property
def batch(self):
return self._shape4D[0]
@property
def height(self):
return self._shape4D[1]
@property
def width(self):
return self._shape4D[2]
@property
def depth(self):
return self._shape4D[3]
@batch.setter
def batch(self, new_batch):
self._shape4D = (new_batch, self._shape4D[1], self._shape4D[2], self._shape4D[3])
@height.setter
def height(self, new_height):
self._shape4D = (self._shape4D[0], new_height, self._shape4D[2], self._shape4D[3])
@width.setter
def width(self, new_width):
self._shape4D = (self._shape4D[0], self._shape4D[1], new_width, self._shape4D[3])
@depth.setter
def depth(self, new_depth):
self._shape4D = (self._shape4D[0], self._shape4D[1], self._shape4D[2], new_depth)
def get_dim(self, dim):
assert -4 <= dim < 4
return self._shape4D[dim]
def as_list(self):
return list(self._shape4D)
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