# 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.
"""
REORG Operator
====================
Reorg operator, used in darknet.
"""
from __future__ import absolute_import as _abs
import tvm
from .. import cpp

@tvm.target.generic_func
def reorg(data, stride):
    """Reorg forward operators.

    Parameters
    ----------
    Input : tvm.Tensor
        4-D with shape [batch, in_channel, in_height, in_width]

    stride : int
        Stride value for reorganization

    Returns
    -------
    Output : tvm.Tensor
        4-D with shape [batch, out_channel, out_height, out_width]
    """
    return cpp.vision.reorg(data, stride)
