Compute Library
 21.08
BatchToSpaceLayer.cpp
Go to the documentation of this file.
1 /*
2  * Copyright (c) 2018 Arm Limited.
3  *
4  * SPDX-License-Identifier: MIT
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a copy
7  * of this software and associated documentation files (the "Software"), to
8  * deal in the Software without restriction, including without limitation the
9  * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
10  * sell copies of the Software, and to permit persons to whom the Software is
11  * furnished to do so, subject to the following conditions:
12  *
13  * The above copyright notice and this permission notice shall be included in all
14  * copies or substantial portions of the Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22  * SOFTWARE.
23  */
24 #include "BatchToSpaceLayer.h"
25 
27 
28 namespace arm_compute
29 {
30 namespace test
31 {
32 namespace validation
33 {
34 namespace reference
35 {
36 // Batch to Space
37 template <typename T>
39 {
40  ARM_COMPUTE_ERROR_ON(block_shape[0] <= 0);
41  ARM_COMPUTE_ERROR_ON(block_shape[1] <= 0);
42  SimpleTensor<T> result(dst_shape, src.data_type());
43 
44  int in_pos = 0;
45  const auto width_in = static_cast<int>(src.shape()[0]);
46  const auto height_in = static_cast<int>(src.shape()[1]);
47  const auto z_in = static_cast<int>(src.shape()[2]);
48  const auto batch_in = static_cast<int>(src.shape()[3]);
49 
50  for(int batch = 0; batch < batch_in; ++batch)
51  {
52  for(int z = 0; z < z_in; ++z)
53  {
54  for(int y = 0; y < height_in; ++y)
55  {
56  for(int x = 0; x < width_in; ++x)
57  {
58  const int r = src.shape()[3] / (block_shape[0] * block_shape[1]);
59  const int out_x = (block_shape[0] * x + (batch / r) % block_shape[0]);
60  const int out_y = (block_shape[1] * y + (batch / r) / block_shape[0]);
61  const int out_pos = out_x + dst_shape[0] * out_y + z * dst_shape[0] * dst_shape[1] + (batch % r) * dst_shape[0] * dst_shape[1] * dst_shape[2];
62  result[out_pos] = src[in_pos];
63  ++in_pos;
64  }
65  }
66  }
67  }
68 
69  return result;
70 }
72 template SimpleTensor<half> batch_to_space(const SimpleTensor<half> &src, const SimpleTensor<int32_t> &block_shape, const TensorShape &dst_shape);
73 } // namespace reference
74 } // namespace validation
75 } // namespace test
76 } // namespace arm_compute
Shape of a tensor.
Definition: TensorShape.h:39
DataType data_type() const override
Data type of the tensor.
Definition: SimpleTensor.h:357
#define ARM_COMPUTE_ERROR_ON(cond)
If the condition is true then an error message is printed and an exception thrown.
Definition: Error.h:466
TensorShape shape() const override
Shape of the tensor.
Definition: SimpleTensor.h:320
SimpleTensor< float > src
Definition: DFT.cpp:155
Copyright (c) 2017-2021 Arm Limited.
Simple tensor object that stores elements in a consecutive chunk of memory.
Definition: SimpleTensor.h:58
SimpleTensor< T > batch_to_space(const SimpleTensor< T > &src, const SimpleTensor< int32_t > &block_shape, const TensorShape &dst_shape)