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/core/CL/kernels/CLScaleKernel.h" |
| 25 | |
| 26 | #include "arm_compute/core/AccessWindowStatic.h" |
| 27 | #include "arm_compute/core/CL/CLHelpers.h" |
| 28 | #include "arm_compute/core/CL/CLKernelLibrary.h" |
| 29 | #include "arm_compute/core/CL/ICLKernel.h" |
| 30 | #include "arm_compute/core/CL/ICLTensor.h" |
| 31 | #include "arm_compute/core/CL/OpenCL.h" |
| 32 | #include "arm_compute/core/Error.h" |
| 33 | #include "arm_compute/core/Helpers.h" |
| 34 | #include "arm_compute/core/TensorInfo.h" |
| 35 | #include "arm_compute/core/Validate.h" |
| 36 | |
| 37 | #include <set> |
| 38 | #include <string> |
| 39 | |
| 40 | using namespace arm_compute; |
| 41 | |
| 42 | BorderSize CLScaleKernel::border_size() const |
| 43 | { |
| 44 | return BorderSize(1); |
| 45 | } |
| 46 | |
Daniil Efremov | 02bf80d | 2017-11-22 00:26:51 +0700 | [diff] [blame] | 47 | void CLScaleKernel::configure(const ICLTensor *input, ICLTensor *output, InterpolationPolicy policy, bool border_undefined, SamplingPolicy sampling_policy) |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 48 | { |
Georgios Pinitas | 583137c | 2017-08-31 18:12:42 +0100 | [diff] [blame] | 49 | ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(input, 1, DataType::U8, DataType::S16, DataType::F16, DataType::F32); |
| 50 | ARM_COMPUTE_ERROR_ON_NULLPTR(output); |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 51 | ARM_COMPUTE_ERROR_ON_MISMATCHING_DATA_TYPES(input, output); |
Georgios Pinitas | 583137c | 2017-08-31 18:12:42 +0100 | [diff] [blame] | 52 | ARM_COMPUTE_ERROR_ON(output == input); |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 53 | |
| 54 | _input = input; |
| 55 | _output = output; |
| 56 | |
Daniil Efremov | 7a49c79 | 2017-11-14 21:25:34 +0700 | [diff] [blame] | 57 | // Compute the ratio between source width/height and destination width/height |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 58 | const auto wr = static_cast<float>(input->info()->dimension(0)) / static_cast<float>(output->info()->dimension(0)); |
| 59 | const auto hr = static_cast<float>(input->info()->dimension(1)) / static_cast<float>(output->info()->dimension(1)); |
| 60 | |
Daniil Efremov | 7a49c79 | 2017-11-14 21:25:34 +0700 | [diff] [blame] | 61 | // Compute actual border size |
| 62 | BorderSize border = border_undefined ? BorderSize(0) : border_size(); |
| 63 | |
| 64 | // Area interpolation behaves as Nearest Neighbour in case of up-sampling |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 65 | if(policy == InterpolationPolicy::AREA && wr <= 1.f && hr <= 1.f) |
| 66 | { |
| 67 | policy = InterpolationPolicy::NEAREST_NEIGHBOR; |
| 68 | } |
| 69 | else |
| 70 | { |
| 71 | ARM_COMPUTE_ERROR_ON(policy == InterpolationPolicy::AREA); |
| 72 | } |
| 73 | |
| 74 | // Create kernel |
Daniil Efremov | 7a49c79 | 2017-11-14 21:25:34 +0700 | [diff] [blame] | 75 | CLBuildOptions build_opts; |
| 76 | build_opts.add_option("-DDATA_TYPE=" + get_cl_type_from_data_type(input->info()->data_type())); |
| 77 | build_opts.add_option("-DBORDER_SIZE=" + support::cpp11::to_string(border.right)); |
Daniil Efremov | 02bf80d | 2017-11-22 00:26:51 +0700 | [diff] [blame] | 78 | build_opts.add_option_if_else(sampling_policy == SamplingPolicy::CENTER, "-DSAMPLING_POLICY_CENTER", "-DSAMPLING_POLICY_TOP_LEFT"); |
Daniil Efremov | 7a49c79 | 2017-11-14 21:25:34 +0700 | [diff] [blame] | 79 | |
| 80 | std::string interpolation_name = string_from_interpolation_policy(policy); |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 81 | std::transform(interpolation_name.begin(), interpolation_name.end(), interpolation_name.begin(), ::tolower); |
| 82 | std::string kernel_name = "scale_" + interpolation_name; |
Daniil Efremov | 7a49c79 | 2017-11-14 21:25:34 +0700 | [diff] [blame] | 83 | _kernel = static_cast<cl::Kernel>(CLKernelLibrary::get().create_kernel(kernel_name, build_opts.options())); |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 84 | |
| 85 | // Configure kernel window |
| 86 | constexpr unsigned int num_elems_processed_per_iteration = 4; |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 87 | |
| 88 | Window win = calculate_max_window(*output->info(), Steps(num_elems_processed_per_iteration)); |
| 89 | |
Isabella Gottardi | 1fab09f | 2017-07-13 15:55:57 +0100 | [diff] [blame] | 90 | const ValidRegion &input_valid_region = input->info()->valid_region(); |
| 91 | |
| 92 | // Reads can occur within the valid region of the input |
| 93 | AccessWindowStatic input_access(input->info(), |
Daniil Efremov | 7a49c79 | 2017-11-14 21:25:34 +0700 | [diff] [blame] | 94 | input_valid_region.anchor[0] - border.left, input_valid_region.anchor[1] - border.top, |
| 95 | input_valid_region.anchor[0] + input_valid_region.shape[0] + border.right, |
| 96 | input_valid_region.anchor[1] + input_valid_region.shape[1] + border.bottom); |
Isabella Gottardi | 1fab09f | 2017-07-13 15:55:57 +0100 | [diff] [blame] | 97 | |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 98 | AccessWindowHorizontal output_access(output->info(), 0, num_elems_processed_per_iteration); |
| 99 | |
| 100 | update_window_and_padding(win, input_access, output_access); |
| 101 | |
Daniil Efremov | 7a49c79 | 2017-11-14 21:25:34 +0700 | [diff] [blame] | 102 | output_access.set_valid_region(win, calculate_valid_region_scale(*(input->info()), |
| 103 | output->info()->tensor_shape(), |
| 104 | policy, |
| 105 | border, |
Isabella Gottardi | 1fab09f | 2017-07-13 15:55:57 +0100 | [diff] [blame] | 106 | border_undefined)); |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 107 | |
| 108 | ICLKernel::configure(win); |
| 109 | |
| 110 | // Set static kernel arguments |
steniu01 | f81652d | 2017-09-11 15:29:12 +0100 | [diff] [blame] | 111 | const float scale_x = static_cast<float>(input->info()->dimension(0)) / output->info()->dimension(0); |
| 112 | const float scale_y = static_cast<float>(input->info()->dimension(1)) / output->info()->dimension(1); |
| 113 | |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 114 | unsigned int idx = 2 * num_arguments_per_2D_tensor(); //Skip the input and output parameters |
| 115 | _kernel.setArg<float>(idx++, input->info()->dimension(0)); |
| 116 | _kernel.setArg<float>(idx++, input->info()->dimension(1)); |
steniu01 | f81652d | 2017-09-11 15:29:12 +0100 | [diff] [blame] | 117 | _kernel.setArg<float>(idx++, scale_x); |
| 118 | _kernel.setArg<float>(idx++, scale_y); |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 119 | } |