COMPMID-344 Updated doxygen
Change-Id: I32f7b84daa560e460b77216add529c8fa8b327ae
diff --git a/src/core/CL/kernels/CLNonLinearFilterKernel.cpp b/src/core/CL/kernels/CLNonLinearFilterKernel.cpp
new file mode 100644
index 0000000..6afa582
--- /dev/null
+++ b/src/core/CL/kernels/CLNonLinearFilterKernel.cpp
@@ -0,0 +1,98 @@
+/*
+ * Copyright (c) 2017 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 "arm_compute/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/Error.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 "arm_compute/core/Window.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)
+{
+ 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 = static_cast<cl::Kernel>(CLKernelLibrary::get().create_kernel(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(win);
+}