Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 1 | /* |
Michalis Spyrou | a4f378d | 2019-04-26 14:54:54 +0100 | [diff] [blame] | 2 | * Copyright (c) 2016-2019 ARM Limited. |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 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 "arm_compute/core/NEON/kernels/NETableLookupKernel.h" |
| 25 | |
| 26 | #include "arm_compute/core/Error.h" |
| 27 | #include "arm_compute/core/Helpers.h" |
| 28 | #include "arm_compute/core/ILut.h" |
| 29 | #include "arm_compute/core/ITensor.h" |
| 30 | #include "arm_compute/core/TensorInfo.h" |
| 31 | #include "arm_compute/core/Utils.h" |
| 32 | #include "arm_compute/core/Validate.h" |
| 33 | |
| 34 | #include <cstddef> |
| 35 | #include <cstdint> |
| 36 | |
| 37 | using namespace arm_compute; |
| 38 | |
| 39 | namespace arm_compute |
| 40 | { |
| 41 | class Coordinates; |
| 42 | |
| 43 | constexpr unsigned int num_num_elems_processed_per_iteration = 16; |
| 44 | } // namespace arm_compute |
| 45 | |
| 46 | NETableLookupKernel::NETableLookupKernel() |
| 47 | : _func(nullptr), _lut(nullptr) |
| 48 | { |
| 49 | } |
| 50 | |
| 51 | template <class T> |
| 52 | void NETableLookupKernel::tableLookup(const Window &window) |
| 53 | { |
| 54 | uint32_t offset = _lut->index_offset(); |
| 55 | size_t count = _lut->num_elements(); |
| 56 | const auto lut = reinterpret_cast<const T *>(_lut->buffer()); |
| 57 | unsigned int step = num_num_elems_processed_per_iteration; |
| 58 | |
| 59 | ARM_COMPUTE_ERROR_ON(lut == nullptr); |
| 60 | |
| 61 | Iterator input = Iterator(_input, window); |
| 62 | Iterator output = Iterator(_output, window); |
| 63 | |
Michalis Spyrou | a4f378d | 2019-04-26 14:54:54 +0100 | [diff] [blame] | 64 | execute_window_loop(window, [&](const Coordinates &) |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 65 | { |
| 66 | auto input_ptr = reinterpret_cast<const T *>(input.ptr()); |
| 67 | auto output_ptr = reinterpret_cast<T *>(output.ptr()); |
| 68 | |
| 69 | for(unsigned int i = 0; i < step; ++i, ++input_ptr, ++output_ptr) |
| 70 | { |
| 71 | const int32_t index = offset + *input_ptr; |
| 72 | |
| 73 | if(0 <= index && index < static_cast<int32_t>(count)) |
| 74 | { |
| 75 | *output_ptr = lut[index]; |
| 76 | } |
| 77 | } |
| 78 | }, |
| 79 | input, output); |
| 80 | } |
| 81 | |
| 82 | namespace arm_compute |
| 83 | { |
| 84 | template <> |
| 85 | void NETableLookupKernel::tableLookup<uint8_t>(const Window &window) |
| 86 | { |
| 87 | const uint8_t *const lut = _lut->buffer(); |
| 88 | unsigned int step = num_num_elems_processed_per_iteration; |
| 89 | |
| 90 | ARM_COMPUTE_ERROR_ON(lut == nullptr); |
| 91 | |
| 92 | Iterator input = Iterator(_input, window); |
| 93 | Iterator output = Iterator(_output, window); |
| 94 | |
Michalis Spyrou | a4f378d | 2019-04-26 14:54:54 +0100 | [diff] [blame] | 95 | execute_window_loop(window, [&](const Coordinates &) |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 96 | { |
| 97 | const uint8_t *input_ptr = input.ptr(); |
| 98 | uint8_t *output_ptr = output.ptr(); |
| 99 | |
| 100 | for(unsigned int i = 0; i < step; ++i) |
| 101 | { |
| 102 | *output_ptr++ = lut[*input_ptr++]; |
| 103 | } |
| 104 | }, |
| 105 | input, output); |
| 106 | } |
| 107 | } // namespace arm_compute |
| 108 | |
| 109 | void NETableLookupKernel::configure(const ITensor *input, const ILut *lut, ITensor *output) |
| 110 | { |
| 111 | ARM_COMPUTE_ERROR_ON(input == nullptr); |
| 112 | ARM_COMPUTE_ERROR_ON(lut == nullptr); |
| 113 | ARM_COMPUTE_ERROR_ON(output == nullptr); |
| 114 | ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(input, 1, DataType::U8, DataType::S16); |
| 115 | ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(output, 1, DataType::U8, DataType::S16); |
| 116 | ARM_COMPUTE_ERROR_ON_MISMATCHING_DATA_TYPES(input, output); |
| 117 | |
| 118 | _lut = lut; |
| 119 | |
| 120 | if(input->info()->data_type() == DataType::U8 && output->info()->data_type() == DataType::U8) |
| 121 | { |
| 122 | _func = &NETableLookupKernel::tableLookup<uint8_t>; |
| 123 | } |
| 124 | else if(input->info()->data_type() == DataType::S16 && output->info()->data_type() == DataType::S16) |
| 125 | { |
| 126 | _func = &NETableLookupKernel::tableLookup<int16_t>; |
| 127 | } |
| 128 | else |
| 129 | { |
| 130 | ARM_COMPUTE_ERROR("Unsupported combination of input and output DataType."); |
| 131 | } |
| 132 | |
| 133 | INESimpleKernel::configure(input, output, num_num_elems_processed_per_iteration); |
| 134 | } |
| 135 | |
Moritz Pflanzer | c186b57 | 2017-09-07 09:48:04 +0100 | [diff] [blame] | 136 | void NETableLookupKernel::run(const Window &window, const ThreadInfo &info) |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 137 | { |
Moritz Pflanzer | c186b57 | 2017-09-07 09:48:04 +0100 | [diff] [blame] | 138 | ARM_COMPUTE_UNUSED(info); |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 139 | ARM_COMPUTE_ERROR_ON_UNCONFIGURED_KERNEL(this); |
| 140 | ARM_COMPUTE_ERROR_ON_INVALID_SUBWINDOW(INESimpleKernel::window(), window); |
| 141 | ARM_COMPUTE_ERROR_ON(_func == nullptr); |
| 142 | (this->*_func)(window); |
| 143 | } |