xref: /aosp_15_r20/external/ComputeLibrary/src/core/helpers/SoftmaxHelpers.cpp (revision c217d954acce2dbc11938adb493fc0abd69584f3)
1 /*
2 * Copyright (c) 2017-2020 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 "src/core/helpers/SoftmaxHelpers.h"
25 
26 namespace arm_compute
27 {
28 namespace softmax_helpers
29 {
get_permutation_vector_from_softmax_axis(size_t axis)30 PermutationVector get_permutation_vector_from_softmax_axis(size_t axis)
31 {
32     switch(axis)
33     {
34         case 1:
35             return PermutationVector(1U, 0U, 2U, 3U);
36         case 2:
37             return PermutationVector(2U, 1U, 0U, 3U);
38         case 3:
39             return PermutationVector(3U, 1U, 2U, 0U);
40         default:
41             ARM_COMPUTE_ERROR("Axis not supported");
42     }
43 }
44 } // namespace softmax_helpers
45 } // namespace arm_compute
46