John Kesapides | 2dce6cc | 2019-01-14 09:47:09 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2019 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 "arm_compute/core/NEON/kernels/NEGatherKernel.h" |
| 25 | |
Georgios Pinitas | 8f5802f | 2019-02-22 11:08:32 +0000 | [diff] [blame] | 26 | #include "arm_compute/core/CPP/Validate.h" |
John Kesapides | 2dce6cc | 2019-01-14 09:47:09 +0000 | [diff] [blame] | 27 | #include "arm_compute/core/Coordinates.h" |
| 28 | #include "arm_compute/core/Error.h" |
| 29 | #include "arm_compute/core/Helpers.h" |
| 30 | #include "arm_compute/core/IAccessWindow.h" |
| 31 | #include "arm_compute/core/TensorInfo.h" |
| 32 | #include "arm_compute/core/Validate.h" |
| 33 | #include "arm_compute/core/Window.h" |
| 34 | #include "arm_compute/core/utils/misc/ShapeCalculator.h" |
| 35 | |
| 36 | namespace arm_compute |
| 37 | { |
| 38 | namespace |
| 39 | { |
| 40 | /** Validate the indices |
| 41 | * |
| 42 | * Validate that indices are not negative |
| 43 | * |
| 44 | * @param[in] indices Indices tensor info. |
| 45 | */ |
| 46 | template <typename U> |
| 47 | void validate_indices(const ITensor *indices) |
| 48 | { |
| 49 | for(size_t i = 0; i < indices->info()->tensor_shape()[0]; ++i) |
| 50 | { |
| 51 | ARM_COMPUTE_ERROR_ON(*(reinterpret_cast<U *>(indices->ptr_to_element(Coordinates(i)))) < 0); |
| 52 | } |
| 53 | } |
| 54 | |
Georgios Pinitas | 3384356 | 2019-12-10 13:33:18 +0000 | [diff] [blame] | 55 | Status validate_arguments(const ITensorInfo *input, const ITensorInfo *indices, const ITensorInfo *output, int axis) |
| 56 | { |
| 57 | ARM_COMPUTE_RETURN_ERROR_ON_NULLPTR(input, indices, output); |
| 58 | ARM_COMPUTE_RETURN_ERROR_ON(indices->num_dimensions() > 1); |
| 59 | ARM_COMPUTE_RETURN_ERROR_ON(input->num_dimensions() > 4); |
| 60 | |
| 61 | if(axis < 0) |
| 62 | { |
| 63 | axis += input->num_dimensions(); |
| 64 | } |
| 65 | |
| 66 | ARM_COMPUTE_RETURN_ERROR_ON(0 > axis || axis >= static_cast<int32_t>(input->num_dimensions())); |
| 67 | ARM_COMPUTE_RETURN_ERROR_ON(input->data_type() == DataType::UNKNOWN); |
| 68 | |
| 69 | if(output->total_size() != 0) |
| 70 | { |
| 71 | ARM_COMPUTE_RETURN_ERROR_ON_MISMATCHING_DATA_TYPES(input, output); |
| 72 | ARM_COMPUTE_RETURN_ERROR_ON_MISMATCHING_QUANTIZATION_INFO(input, output); |
| 73 | TensorShape output_shape = arm_compute::misc::shape_calculator::compute_gather_shape(input->tensor_shape(), indices->tensor_shape(), axis); |
| 74 | ARM_COMPUTE_RETURN_ERROR_ON(output_shape.total_size() != output->tensor_shape().total_size()); |
| 75 | } |
| 76 | |
| 77 | ARM_COMPUTE_RETURN_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(indices, 1, DataType::U32, DataType::S32); |
| 78 | |
| 79 | return Status{}; |
| 80 | } |
John Kesapides | 2dce6cc | 2019-01-14 09:47:09 +0000 | [diff] [blame] | 81 | } // namespace |
| 82 | |
| 83 | NEGatherKernel::NEGatherKernel() |
| 84 | : _input{}, _indices{}, _axis{}, _output{}, _func{} |
| 85 | { |
| 86 | } |
| 87 | |
| 88 | template <typename U> |
| 89 | inline void NEGatherKernel::gather_0_axis(const Window &window, const ThreadInfo &info) |
| 90 | { |
| 91 | ARM_COMPUTE_UNUSED(info); |
| 92 | |
| 93 | // Validate that the indices are not negative |
| 94 | validate_indices<U>(_indices); |
| 95 | |
| 96 | Iterator output_it(_output, window); |
| 97 | execute_window_loop(window, [&](const Coordinates & id) |
| 98 | { |
| 99 | Coordinates gather_id(id); |
| 100 | |
| 101 | auto new_index = *(reinterpret_cast<U *>(_indices->ptr_to_element(Coordinates(id[0])))); |
| 102 | gather_id.set(0, new_index); |
| 103 | |
| 104 | std::copy_n(_input->ptr_to_element(gather_id), _output->info()->element_size(), output_it.ptr()); |
| 105 | }, |
| 106 | output_it); |
| 107 | } |
| 108 | |
| 109 | template <typename U> |
| 110 | void NEGatherKernel::gather_n_axis(const Window &window, const ThreadInfo &info) |
| 111 | { |
| 112 | ARM_COMPUTE_UNUSED(info); |
| 113 | |
| 114 | // Validate that the indices are not negative |
| 115 | validate_indices<U>(_indices); |
| 116 | |
| 117 | Window output_window{ window }; |
| 118 | output_window.set(Window::DimX, Window::Dimension(0, 1, 1)); |
| 119 | |
| 120 | Iterator output_it(_output, output_window); |
| 121 | execute_window_loop(output_window, [&](const Coordinates & id) |
| 122 | { |
| 123 | Coordinates gather_id(id); |
| 124 | |
| 125 | auto new_index = *(reinterpret_cast<U *>(_indices->ptr_to_element(Coordinates(id[_axis])))); |
| 126 | gather_id.set(_axis, new_index); |
| 127 | |
| 128 | std::copy_n(_input->ptr_to_element(gather_id), _input->info()->dimension(0) * _output->info()->element_size(), output_it.ptr()); |
| 129 | }, |
| 130 | output_it); |
| 131 | } |
| 132 | |
| 133 | void NEGatherKernel::configure(const ITensor *input, const ITensor *indices, ITensor *output, int axis) |
| 134 | { |
| 135 | ARM_COMPUTE_ERROR_ON_NULLPTR(input, output, indices); |
Georgios Pinitas | 3384356 | 2019-12-10 13:33:18 +0000 | [diff] [blame] | 136 | ARM_COMPUTE_ERROR_THROW_ON(validate_arguments(input->info(), indices->info(), output->info(), axis)); |
John Kesapides | 2dce6cc | 2019-01-14 09:47:09 +0000 | [diff] [blame] | 137 | |
| 138 | _input = input; |
| 139 | _indices = indices; |
| 140 | _output = output; |
| 141 | _axis = axis; |
| 142 | |
| 143 | if(_axis < 0) |
| 144 | { |
| 145 | _axis += input->info()->num_dimensions(); |
| 146 | } |
| 147 | ARM_COMPUTE_ERROR_ON(0 > _axis || _axis >= static_cast<int32_t>(input->info()->num_dimensions())); |
| 148 | |
| 149 | if(0 == _axis) |
| 150 | { |
| 151 | switch(_indices->info()->data_type()) |
| 152 | { |
| 153 | case DataType::U32: |
| 154 | _func = &NEGatherKernel::gather_0_axis<uint32_t>; |
| 155 | break; |
| 156 | case DataType::S32: |
| 157 | _func = &NEGatherKernel::gather_0_axis<int32_t>; |
| 158 | break; |
| 159 | default: |
| 160 | ARM_COMPUTE_ERROR("Not supported"); |
| 161 | break; |
| 162 | } |
| 163 | } |
| 164 | else |
| 165 | { |
| 166 | switch(_indices->info()->data_type()) |
| 167 | { |
| 168 | case DataType::U32: |
| 169 | _func = &NEGatherKernel::gather_n_axis<uint32_t>; |
| 170 | break; |
| 171 | case DataType::S32: |
| 172 | _func = &NEGatherKernel::gather_n_axis<int32_t>; |
| 173 | break; |
| 174 | default: |
| 175 | ARM_COMPUTE_ERROR("Not supported"); |
| 176 | break; |
| 177 | } |
| 178 | } |
| 179 | // Output auto initialization if not yet initialized |
| 180 | TensorShape output_shape = arm_compute::misc::shape_calculator::compute_gather_shape(input->info()->tensor_shape(), indices->info()->tensor_shape(), _axis); |
Georgios Pinitas | 3384356 | 2019-12-10 13:33:18 +0000 | [diff] [blame] | 181 | auto_init_if_empty(*output->info(), input->info()->clone()->set_tensor_shape(output_shape)); |
John Kesapides | 2dce6cc | 2019-01-14 09:47:09 +0000 | [diff] [blame] | 182 | |
| 183 | // Create window |
| 184 | Window win = calculate_max_window(*output->info(), Steps()); |
| 185 | output->info()->set_valid_region(ValidRegion(Coordinates(), output->info()->tensor_shape())); |
| 186 | |
| 187 | INEKernel::configure(win); |
| 188 | } |
| 189 | |
| 190 | Status NEGatherKernel::validate(const ITensorInfo *input, const ITensorInfo *indices, const ITensorInfo *output, int axis) |
| 191 | { |
Georgios Pinitas | 3384356 | 2019-12-10 13:33:18 +0000 | [diff] [blame] | 192 | ARM_COMPUTE_RETURN_ON_ERROR(validate_arguments(input, indices, output, axis)); |
John Kesapides | 2dce6cc | 2019-01-14 09:47:09 +0000 | [diff] [blame] | 193 | return Status{}; |
| 194 | } |
| 195 | |
| 196 | void NEGatherKernel::run(const Window &window, const ThreadInfo &info) |
| 197 | { |
| 198 | ARM_COMPUTE_UNUSED(info); |
| 199 | ARM_COMPUTE_ERROR_ON_UNCONFIGURED_KERNEL(this); |
| 200 | ARM_COMPUTE_ERROR_ON(_func == nullptr); |
| 201 | |
| 202 | (this->*_func)(window, info); |
| 203 | } |
| 204 | |
| 205 | } // namespace arm_compute |