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
25 #include "src/core/utils/ScaleUtils.h"
26 #include "src/common/cpuinfo/CpuIsaInfo.h"
27
28 #include "arm_compute/core/CPP/CPPTypes.h"
29 #include "arm_compute/core/TensorInfo.h"
30
calculate_resize_ratio(size_t input_size,size_t output_size,bool align_corners)31 float arm_compute::scale_utils::calculate_resize_ratio(size_t input_size, size_t output_size, bool align_corners)
32 {
33 const size_t offset = (align_corners && output_size > 1) ? 1 : 0;
34 const auto in = input_size - offset;
35 const auto out = output_size - offset;
36
37 ARM_COMPUTE_ERROR_ON((input_size == 0 || output_size == 0) && offset == 1);
38 ARM_COMPUTE_ERROR_ON(out == 0);
39
40 return static_cast<float>(in) / static_cast<float>(out);
41 }
42
is_precomputation_required(DataLayout data_layout,DataType data_type,InterpolationPolicy policy,BorderMode border_mode)43 bool arm_compute::scale_utils::is_precomputation_required(DataLayout data_layout, DataType data_type,
44 InterpolationPolicy policy, BorderMode border_mode)
45 {
46 // Do not calculate precomputed weights and indices if kernel code doesn't use them
47 if(data_layout == DataLayout::NHWC)
48 {
49 switch(data_type)
50 {
51 case DataType::F32:
52 case DataType::F16:
53 return (CPUInfo::get().get_isa().sve == true && policy == InterpolationPolicy::NEAREST_NEIGHBOR);
54 case DataType::U8:
55 case DataType::S8:
56 case DataType::QASYMM8:
57 case DataType::QASYMM8_SIGNED:
58 return (border_mode != BorderMode::REPLICATE) || (policy == InterpolationPolicy::NEAREST_NEIGHBOR);
59 default:
60 return true;
61 }
62 }
63
64 return true;
65 }