| /* |
| * Copyright (c) 2017-2020 Arm Limited. |
| * |
| * SPDX-License-Identifier: MIT |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to |
| * deal in the Software without restriction, including without limitation the |
| * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
| * sell copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in all |
| * copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| * SOFTWARE. |
| */ |
| #include "src/core/CL/kernels/CLNonLinearFilterKernel.h" |
| |
| #include "arm_compute/core/CL/CLHelpers.h" |
| #include "arm_compute/core/CL/CLKernelLibrary.h" |
| #include "arm_compute/core/CL/ICLTensor.h" |
| #include "arm_compute/core/CL/OpenCL.h" |
| #include "arm_compute/core/Helpers.h" |
| #include "arm_compute/core/TensorInfo.h" |
| #include "arm_compute/core/Utils.h" |
| #include "arm_compute/core/Validate.h" |
| #include "src/core/helpers/WindowHelpers.h" |
| |
| #include <algorithm> |
| #include <cmath> |
| #include <cstdlib> |
| #include <set> |
| #include <sstream> |
| #include <string> |
| |
| using namespace arm_compute; |
| |
| CLNonLinearFilterKernel::CLNonLinearFilterKernel() |
| : _border_size(0) |
| { |
| } |
| |
| BorderSize CLNonLinearFilterKernel::border_size() const |
| { |
| return _border_size; |
| } |
| |
| void CLNonLinearFilterKernel::configure(const ICLTensor *input, ICLTensor *output, NonLinearFilterFunction function, |
| unsigned int mask_size, MatrixPattern pattern, const uint8_t *mask, |
| bool border_undefined) |
| { |
| configure(CLKernelLibrary::get().get_compile_context(), input, output, function, mask_size, pattern, mask, border_undefined); |
| } |
| |
| void CLNonLinearFilterKernel::configure(const CLCompileContext &compile_context, const ICLTensor *input, ICLTensor *output, NonLinearFilterFunction function, |
| unsigned int mask_size, MatrixPattern pattern, const uint8_t *mask, |
| bool border_undefined) |
| { |
| ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(input, 1, DataType::U8); |
| ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(output, 1, DataType::U8); |
| ARM_COMPUTE_ERROR_ON(mask_size != 3 && mask_size != 5); |
| ARM_COMPUTE_ERROR_ON_MSG(pattern == MatrixPattern::OTHER, "MatrixPattern::OTHER is not supported!"); |
| ARM_COMPUTE_UNUSED(mask); |
| |
| _input = input; |
| _output = output; |
| _border_size = BorderSize(mask_size / 2); |
| |
| // Define build options |
| std::set<std::string> build_opts; |
| build_opts.emplace("-D" + string_from_non_linear_filter_function(function)); |
| |
| // Define kernel |
| std::string pattern_name = string_from_matrix_pattern(pattern); |
| std::transform(pattern_name.begin(), pattern_name.end(), pattern_name.begin(), ::tolower); |
| std::stringstream ss; |
| ss << "non_linear_filter_" << pattern_name << mask_size << "x" << mask_size; |
| |
| // Create kernel |
| _kernel = create_kernel(compile_context, ss.str(), build_opts); |
| |
| // Configure kernel window |
| constexpr unsigned int num_elems_processed_per_iteration = 8; |
| constexpr unsigned int num_elems_read_per_iteration = 16; |
| const unsigned int num_rows_read_per_iteration = mask_size; |
| |
| Window win = calculate_max_window(*input->info(), num_elems_processed_per_iteration, border_undefined, border_size()); |
| |
| AccessWindowRectangle input_access(input->info(), -border_size().left, -border_size().top, num_elems_read_per_iteration, num_rows_read_per_iteration); |
| AccessWindowHorizontal output_access(output->info(), 0, num_elems_processed_per_iteration); |
| |
| update_window_and_padding(win, input_access, output_access); |
| |
| output_access.set_valid_region(win, input->info()->valid_region(), border_undefined, border_size()); |
| |
| ICLKernel::configure_internal(win); |
| } |