1 /*
2 * Copyright (c) 2020, 2022 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 #ifndef UTILS_CORE_SCALEUTILS_H
25 #define UTILS_CORE_SCALEUTILS_H
26
27 #include "arm_compute/core/Types.h"
28
29 namespace arm_compute
30 {
31 namespace scale_utils
32 {
33 /** Returns resize ratio between input and output with consideration of aligned corners
34 *
35 * @param[in] input_size The input size
36 * @param[in] output_size the output size
37 * @param[in] align_corners True to align corners of input and output. Defaults to false.
38 *
39 * @return The ratio between input and output (i.e., the input size divided by the output size)
40 */
41 float calculate_resize_ratio(size_t input_size, size_t output_size, bool align_corners = false);
42
43 /** Returns if aligned corners are allowed for the given sampling policy
44 *
45 * @param[in] sampling_policy The sampling policy to consider
46 *
47 * @return True if aligned corners are allowed
48 */
is_align_corners_allowed_sampling_policy(SamplingPolicy sampling_policy)49 inline bool is_align_corners_allowed_sampling_policy(SamplingPolicy sampling_policy)
50 {
51 return sampling_policy != SamplingPolicy::CENTER;
52 }
53
54 /** Returns if precomputation of indices and/or weights is required or/not
55 *
56 * @param[in] data_layout Data layout
57 * @param[in] data_type Data type
58 * @param[in] policy Interpolation policy
59 * @param[in] border_mode Border Mode
60 *
61 * @return True if precomputation is required
62 */
63 bool is_precomputation_required(DataLayout data_layout, DataType data_type, InterpolationPolicy policy, BorderMode border_mode);
64
65 } // namespace scale_utils
66 } // namespace arm_compute
67 #endif /* UTILS_CORE_SCALEUTILS_H */