Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 1 | /* |
Anthony Barbier | b6eb353 | 2018-08-08 13:20:04 +0100 | [diff] [blame] | 2 | * Copyright (c) 2016-2018 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/CL/kernels/CLSobel3x3Kernel.h" |
| 25 | |
| 26 | #include "arm_compute/core/CL/CLKernelLibrary.h" |
| 27 | #include "arm_compute/core/CL/ICLTensor.h" |
| 28 | #include "arm_compute/core/CL/OpenCL.h" |
| 29 | #include "arm_compute/core/Error.h" |
| 30 | #include "arm_compute/core/Helpers.h" |
| 31 | #include "arm_compute/core/Types.h" |
| 32 | #include "arm_compute/core/Validate.h" |
| 33 | #include "arm_compute/core/Window.h" |
| 34 | |
| 35 | #include <set> |
| 36 | #include <string> |
| 37 | |
| 38 | using namespace arm_compute; |
| 39 | |
| 40 | CLSobel3x3Kernel::CLSobel3x3Kernel() |
| 41 | : _input(nullptr), _output_x(nullptr), _output_y(nullptr), _run_sobel_x(false), _run_sobel_y(false) |
| 42 | { |
| 43 | } |
| 44 | |
| 45 | BorderSize CLSobel3x3Kernel::border_size() const |
| 46 | { |
| 47 | return BorderSize(1); |
| 48 | } |
| 49 | |
| 50 | void CLSobel3x3Kernel::configure(const ICLTensor *input, ICLTensor *output_x, ICLTensor *output_y, bool border_undefined) |
| 51 | { |
| 52 | ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(input, 1, DataType::U8); |
| 53 | ARM_COMPUTE_ERROR_ON((output_x == nullptr) && (output_y == nullptr)); |
| 54 | |
| 55 | _run_sobel_x = output_x != nullptr; |
| 56 | _run_sobel_y = output_y != nullptr; |
| 57 | |
| 58 | if(_run_sobel_x) |
| 59 | { |
| 60 | ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(output_x, 1, DataType::S16); |
| 61 | } |
| 62 | |
| 63 | if(_run_sobel_y) |
| 64 | { |
| 65 | ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(output_y, 1, DataType::S16); |
| 66 | } |
| 67 | |
| 68 | _input = input; |
| 69 | _output_x = output_x; |
| 70 | _output_y = output_y; |
| 71 | |
| 72 | // Set build options |
| 73 | std::set<std::string> build_opts; |
| 74 | |
| 75 | if(_run_sobel_x) |
| 76 | { |
| 77 | build_opts.insert("-DGRAD_X"); |
| 78 | } |
| 79 | |
| 80 | if(_run_sobel_y) |
| 81 | { |
| 82 | build_opts.insert("-DGRAD_Y"); |
| 83 | } |
| 84 | |
| 85 | // Create kernel |
| 86 | _kernel = static_cast<cl::Kernel>(CLKernelLibrary::get().create_kernel("sobel3x3", build_opts)); |
| 87 | |
| 88 | // Configure kernel window |
| 89 | constexpr unsigned int num_elems_processed_per_iteration = 8; |
| 90 | constexpr unsigned int num_elems_read_per_iteration = 16; |
| 91 | constexpr unsigned int num_elems_written_per_iteration = 8; |
| 92 | constexpr unsigned int num_rows_read_per_iteration = 3; |
| 93 | |
| 94 | Window win = calculate_max_window(*input->info(), Steps(num_elems_processed_per_iteration), border_undefined, border_size()); |
| 95 | |
| 96 | AccessWindowRectangle input_access(input->info(), -border_size().left, -border_size().top, num_elems_read_per_iteration, num_rows_read_per_iteration); |
| 97 | AccessWindowHorizontal output_x_access(output_x == nullptr ? nullptr : output_x->info(), 0, num_elems_written_per_iteration); |
| 98 | AccessWindowHorizontal output_y_access(output_y == nullptr ? nullptr : output_y->info(), 0, num_elems_written_per_iteration); |
| 99 | |
| 100 | update_window_and_padding(win, input_access, output_x_access, output_y_access); |
| 101 | |
| 102 | output_x_access.set_valid_region(win, input->info()->valid_region(), border_undefined, border_size()); |
| 103 | output_y_access.set_valid_region(win, input->info()->valid_region(), border_undefined, border_size()); |
| 104 | |
Anthony Barbier | b6eb353 | 2018-08-08 13:20:04 +0100 | [diff] [blame] | 105 | ICLKernel::configure_internal(win); |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 106 | } |
| 107 | |
| 108 | void CLSobel3x3Kernel::run(const Window &window, cl::CommandQueue &queue) |
| 109 | { |
| 110 | ARM_COMPUTE_ERROR_ON_UNCONFIGURED_KERNEL(this); |
| 111 | ARM_COMPUTE_ERROR_ON_INVALID_SUBWINDOW(ICLKernel::window(), window); |
| 112 | |
| 113 | Window slice = window.first_slice_window_2D(); |
| 114 | |
| 115 | do |
| 116 | { |
| 117 | unsigned int idx = 0; |
| 118 | add_2D_tensor_argument(idx, _input, slice); |
| 119 | |
| 120 | if(_run_sobel_x) |
| 121 | { |
| 122 | add_2D_tensor_argument(idx, _output_x, slice); |
| 123 | } |
| 124 | |
| 125 | if(_run_sobel_y) |
| 126 | { |
| 127 | add_2D_tensor_argument(idx, _output_y, slice); |
| 128 | } |
| 129 | |
| 130 | enqueue(queue, *this, slice); |
| 131 | } |
| 132 | while(window.slide_window_slice_2D(slice)); |
| 133 | } |