John Richardson | 3c5f949 | 2017-10-04 15:27:37 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2017 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 "Magnitude.h" |
| 25 | |
| 26 | namespace arm_compute |
| 27 | { |
| 28 | namespace test |
| 29 | { |
| 30 | namespace validation |
| 31 | { |
| 32 | namespace reference |
| 33 | { |
| 34 | template <typename T> |
| 35 | SimpleTensor<T> magnitude(const SimpleTensor<T> &gx, const SimpleTensor<T> &gy, MagnitudeType magnitude_type) |
| 36 | { |
| 37 | SimpleTensor<T> mag(gx.shape(), gx.data_type()); |
| 38 | |
| 39 | using intermediate_type = typename common_promoted_unsigned_type<T>::intermediate_type; |
| 40 | |
| 41 | for(int i = 0; i < gx.num_elements(); ++i) |
| 42 | { |
| 43 | double val = 0.f; |
| 44 | |
| 45 | if(magnitude_type == MagnitudeType::L1NORM) |
| 46 | { |
| 47 | val = static_cast<intermediate_type>(std::abs(gx[i])) + static_cast<intermediate_type>(std::abs(gy[i])); |
| 48 | } |
| 49 | else // MagnitudeType::L2NORM |
| 50 | { |
| 51 | // Note: kernel saturates to uint32_t instead of intermediate_type for S32 format |
| 52 | auto sum = static_cast<uint32_t>(gx[i] * gx[i]) + static_cast<uint32_t>(gy[i] * gy[i]); |
| 53 | val = std::sqrt(sum) + 0.5f; |
| 54 | } |
| 55 | |
| 56 | mag[i] = saturate_cast<T>(val); |
| 57 | } |
| 58 | |
| 59 | return mag; |
| 60 | } |
| 61 | |
| 62 | template SimpleTensor<int16_t> magnitude(const SimpleTensor<int16_t> &gx, const SimpleTensor<int16_t> &gy, MagnitudeType magnitude_type); |
| 63 | template SimpleTensor<int32_t> magnitude(const SimpleTensor<int32_t> &gx, const SimpleTensor<int32_t> &gy, MagnitudeType magnitude_type); |
| 64 | template SimpleTensor<half_float::half> magnitude(const SimpleTensor<half_float::half> &gx, const SimpleTensor<half_float::half> &gy, MagnitudeType magnitude_type); |
| 65 | } // namespace reference |
| 66 | } // namespace validation |
| 67 | } // namespace test |
| 68 | } // namespace arm_compute |