util.py 1.94 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements.  See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you 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.
# pylint: disable=invalid-name, unused-variable
"""NN operator common utilities"""
19 20
from tvm.ir import container

21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56

def get_pad_tuple2d(padding):
    """Common code to get the pad option
    Parameters
    ----------
    padding : Union[int, Tuple[int, ...]]
        Padding size
    Returns
    -------
    pad_top : int
        Padding size on top
    pad_left : int
        Padding size on left
    pad_down : int
        Padding size on down.
    pad_right : int
        Padding size on right.
    """
    # compute the padding size
    if isinstance(padding, container.Array):
        padding = list(padding)
    if isinstance(padding, (tuple, list)):
        if len(padding) == 2:
            pad_h = padding[0] * 2
            pad_w = padding[1] * 2
        elif len(padding) == 4:
            return padding[0], padding[1], padding[2], padding[3]
        else:
            raise ValueError("Size of padding can only be 2 or 4")
    elif isinstance(padding, int):
        pad_h = pad_w = padding * 2
    else:
        raise ValueError("Unknown padding option %s" % padding)
    pad_top = (pad_h + 1) // 2
    pad_left = (pad_w + 1) // 2
    return pad_top, pad_left, pad_h - pad_top, pad_w - pad_left