Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2016, 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 "arm_compute/runtime/NEON/functions/NEScale.h" |
| 25 | |
| 26 | #include "arm_compute/core/Coordinates.h" |
| 27 | #include "arm_compute/core/Error.h" |
| 28 | #include "arm_compute/core/Helpers.h" |
| 29 | #include "arm_compute/core/ITensor.h" |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 30 | #include "arm_compute/core/PixelValue.h" |
| 31 | #include "arm_compute/core/TensorInfo.h" |
| 32 | #include "arm_compute/core/Window.h" |
Georgios Pinitas | 658039b | 2017-09-15 16:30:50 +0100 | [diff] [blame] | 33 | #include "arm_compute/runtime/NEON/NEScheduler.h" |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 34 | #include "arm_compute/runtime/TensorAllocator.h" |
Moritz Pflanzer | d0ae8b8 | 2017-06-29 14:51:57 +0100 | [diff] [blame] | 35 | #include "support/ToolchainSupport.h" |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 36 | |
| 37 | #include <cmath> |
| 38 | #include <cstddef> |
| 39 | #include <utility> |
| 40 | |
| 41 | using namespace arm_compute; |
| 42 | |
| 43 | namespace |
| 44 | { |
Daniil Efremov | 02bf80d | 2017-11-22 00:26:51 +0700 | [diff] [blame^] | 45 | void precompute_dx_dy_offsets(ITensor *dx, ITensor *dy, ITensor *offsets, float wr, float hr, size_t input_element_size, SamplingPolicy sampling_policy) |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 46 | { |
| 47 | ARM_COMPUTE_ERROR_ON(nullptr == offsets); |
Daniil Efremov | 02bf80d | 2017-11-22 00:26:51 +0700 | [diff] [blame^] | 48 | ARM_COMPUTE_ERROR_ON(sampling_policy != SamplingPolicy::CENTER); |
| 49 | ARM_COMPUTE_UNUSED(sampling_policy); |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 50 | |
| 51 | Window win; |
| 52 | win.set(Window::DimX, Window::Dimension(0, offsets->info()->dimension(0), 1)); |
| 53 | win.set(Window::DimY, Window::Dimension(0, offsets->info()->dimension(1), 1)); |
| 54 | |
| 55 | if(dx != nullptr && dy != nullptr) |
| 56 | { |
| 57 | // Pre-compute the offset and pixel's distance for BILINEAR interpolation |
| 58 | Iterator offsets_it(offsets, win); |
| 59 | Iterator dx_it(dx, win); |
| 60 | Iterator dy_it(dy, win); |
| 61 | |
| 62 | execute_window_loop(win, [&](const Coordinates & id) |
| 63 | { |
| 64 | const float in_x = (id.x() + 0.5f) * wr - 0.5f; |
| 65 | const float in_y = (id.y() + 0.5f) * hr - 0.5f; |
| 66 | const int in_xi = std::floor(in_x); |
| 67 | const int in_yi = std::floor(in_y); |
| 68 | |
| 69 | *reinterpret_cast<int32_t *>(offsets_it.ptr()) = in_xi * input_element_size; |
| 70 | *reinterpret_cast<float *>(dx_it.ptr()) = in_x - in_xi; |
| 71 | *reinterpret_cast<float *>(dy_it.ptr()) = in_y - in_yi; |
| 72 | }, |
| 73 | offsets_it, dx_it, dy_it); |
| 74 | } |
| 75 | else |
| 76 | { |
| 77 | // Pre-compute the offset for NEAREST interpolation |
| 78 | Iterator offsets_it(offsets, win); |
| 79 | |
| 80 | execute_window_loop(win, [&](const Coordinates & id) |
| 81 | { |
| 82 | const size_t in_xi = (id.x() + 0.5f) * wr; |
| 83 | |
| 84 | *reinterpret_cast<int32_t *>(offsets_it.ptr()) = in_xi * input_element_size; |
| 85 | }, |
| 86 | offsets_it); |
| 87 | } |
| 88 | } |
| 89 | } // namespace |
| 90 | |
Georgios Pinitas | 3021edf | 2017-09-18 17:55:22 +0100 | [diff] [blame] | 91 | NEScale::NEScale() // NOLINT |
| 92 | : _offsets(), |
Moritz Pflanzer | f4af76e | 2017-09-06 07:42:43 +0100 | [diff] [blame] | 93 | _dx(), |
Georgios Pinitas | 658039b | 2017-09-15 16:30:50 +0100 | [diff] [blame] | 94 | _dy(), |
| 95 | _scale_kernel(), |
| 96 | _border_handler() |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 97 | { |
| 98 | } |
| 99 | |
Daniil Efremov | 02bf80d | 2017-11-22 00:26:51 +0700 | [diff] [blame^] | 100 | void NEScale::configure(ITensor *input, ITensor *output, InterpolationPolicy policy, BorderMode border_mode, PixelValue constant_border_value, SamplingPolicy sampling_policy) |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 101 | { |
| 102 | ARM_COMPUTE_ERROR_ON(nullptr == input); |
| 103 | ARM_COMPUTE_ERROR_ON(nullptr == output); |
| 104 | |
| 105 | for(size_t i = 2; i < Coordinates::num_max_dimensions; ++i) |
| 106 | { |
| 107 | ARM_COMPUTE_ERROR_ON(input->info()->dimension(i) != output->info()->dimension(i)); |
| 108 | } |
| 109 | |
| 110 | // Get the tensor shape |
| 111 | const TensorShape shape(output->info()->dimension(0), output->info()->dimension(1)); |
| 112 | |
| 113 | // Compute the ratio between source width/height and destination width/height |
| 114 | const auto wr = static_cast<float>(input->info()->dimension(0)) / static_cast<float>(output->info()->dimension(0)); |
| 115 | const auto hr = static_cast<float>(input->info()->dimension(1)) / static_cast<float>(output->info()->dimension(1)); |
| 116 | |
| 117 | // Get the element size of the input image |
| 118 | const size_t input_element_size = input->info()->element_size(); |
| 119 | |
| 120 | // Area interpolation behaves as Nearest Neighbour in case of up-sampling |
| 121 | if(policy == InterpolationPolicy::AREA && wr <= 1.f && hr <= 1.f) |
| 122 | { |
| 123 | policy = InterpolationPolicy::NEAREST_NEIGHBOR; |
| 124 | } |
| 125 | |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 126 | // Check if the border mode is UNDEFINED |
| 127 | const bool border_undefined = border_mode == BorderMode::UNDEFINED; |
| 128 | |
| 129 | switch(policy) |
| 130 | { |
| 131 | case InterpolationPolicy::NEAREST_NEIGHBOR: |
| 132 | { |
| 133 | TensorInfo tensor_info_offsets(shape, Format::S32); |
| 134 | _offsets.allocator()->init(tensor_info_offsets); |
| 135 | |
Daniil Efremov | 02bf80d | 2017-11-22 00:26:51 +0700 | [diff] [blame^] | 136 | _scale_kernel.configure(input, nullptr, nullptr, &_offsets, output, policy, border_undefined, sampling_policy); |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 137 | |
| 138 | // Allocate once the configure methods have been called |
| 139 | _offsets.allocator()->allocate(); |
| 140 | |
| 141 | // Pre-compute offsets for nearest interpolation |
Daniil Efremov | 02bf80d | 2017-11-22 00:26:51 +0700 | [diff] [blame^] | 142 | precompute_dx_dy_offsets(nullptr, nullptr, &_offsets, wr, hr, input_element_size, sampling_policy); |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 143 | break; |
| 144 | } |
| 145 | case InterpolationPolicy::BILINEAR: |
| 146 | { |
| 147 | TensorInfo tensor_info_offsets(shape, Format::S32); |
| 148 | TensorInfo tensor_info_dxdy(shape, Format::F32); |
| 149 | |
| 150 | _offsets.allocator()->init(tensor_info_offsets); |
| 151 | _dx.allocator()->init(tensor_info_dxdy); |
| 152 | _dy.allocator()->init(tensor_info_dxdy); |
| 153 | |
Daniil Efremov | 02bf80d | 2017-11-22 00:26:51 +0700 | [diff] [blame^] | 154 | _scale_kernel.configure(input, &_dx, &_dy, &_offsets, output, policy, border_undefined, sampling_policy); |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 155 | |
| 156 | // Allocate once the configure methods have been called |
| 157 | _offsets.allocator()->allocate(); |
| 158 | _dx.allocator()->allocate(); |
| 159 | _dy.allocator()->allocate(); |
| 160 | |
| 161 | // Pre-compute dx, dy and offsets for bilinear interpolation |
Daniil Efremov | 02bf80d | 2017-11-22 00:26:51 +0700 | [diff] [blame^] | 162 | precompute_dx_dy_offsets(&_dx, &_dy, &_offsets, wr, hr, input_element_size, sampling_policy); |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 163 | break; |
| 164 | } |
| 165 | case InterpolationPolicy::AREA: |
| 166 | { |
Georgios Pinitas | 658039b | 2017-09-15 16:30:50 +0100 | [diff] [blame] | 167 | _scale_kernel.configure(input, nullptr, nullptr, nullptr, output, policy, border_undefined); |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 168 | break; |
| 169 | } |
| 170 | default: |
| 171 | ARM_COMPUTE_ERROR("Unsupported interpolation mode"); |
| 172 | } |
| 173 | |
Georgios Pinitas | 658039b | 2017-09-15 16:30:50 +0100 | [diff] [blame] | 174 | _border_handler.configure(input, _scale_kernel.border_size(), border_mode, PixelValue(constant_border_value)); |
| 175 | } |
| 176 | |
| 177 | void NEScale::run() |
| 178 | { |
Georgios Pinitas | 658039b | 2017-09-15 16:30:50 +0100 | [diff] [blame] | 179 | NEScheduler::get().schedule(&_border_handler, Window::DimZ); |
| 180 | NEScheduler::get().schedule(&_scale_kernel, Window::DimY); |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 181 | } |