COMPMID-344 Updated doxygen

Change-Id: I32f7b84daa560e460b77216add529c8fa8b327ae
diff --git a/src/core/NEON/kernels/NEFillArrayKernel.cpp b/src/core/NEON/kernels/NEFillArrayKernel.cpp
new file mode 100644
index 0000000..7e7e1c2
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+++ b/src/core/NEON/kernels/NEFillArrayKernel.cpp
@@ -0,0 +1,91 @@
+/*
+ * Copyright (c) 2016, 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/NEON/kernels/NEFillArrayKernel.h"
+
+#include "arm_compute/core/Coordinates.h"
+#include "arm_compute/core/Error.h"
+#include "arm_compute/core/Helpers.h"
+#include "arm_compute/core/IAccessWindow.h"
+#include "arm_compute/core/Validate.h"
+
+using namespace arm_compute;
+
+NEFillArrayKernel::NEFillArrayKernel()
+    : _input(nullptr), _output(nullptr), _threshold(0)
+{
+}
+
+void NEFillArrayKernel::configure(const IImage *input, uint8_t threshold, IKeyPointArray *output)
+{
+    ARM_COMPUTE_ERROR_ON_TENSOR_NOT_2D(input);
+    ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(input, 1, DataType::U8);
+    ARM_COMPUTE_ERROR_ON(nullptr == output);
+
+    _input     = input;
+    _output    = output;
+    _threshold = threshold;
+
+    constexpr unsigned int num_elems_processed_per_iteration = 1;
+    constexpr unsigned int num_elems_read_per_iteration      = 1;
+
+    // Configure kernel window
+    Window win = calculate_max_window(*input->info(), Steps(num_elems_processed_per_iteration));
+
+    update_window_and_padding(win, AccessWindowHorizontal(input->info(), 0, num_elems_read_per_iteration));
+
+    INEKernel::configure(win);
+}
+
+bool NEFillArrayKernel::is_parallelisable() const
+{
+    return false;
+}
+
+void NEFillArrayKernel::run(const Window &window)
+{
+    ARM_COMPUTE_ERROR_ON_UNCONFIGURED_KERNEL(this);
+    ARM_COMPUTE_ERROR_ON_INVALID_SUBWINDOW(INEKernel::window(), window);
+
+    Iterator input(_input, window);
+
+    execute_window_loop(window, [&](const Coordinates & id)
+    {
+        const uint8_t value = *input.ptr();
+
+        if(value >= _threshold)
+        {
+            KeyPoint p;
+            p.x               = id.x();
+            p.y               = id.y();
+            p.strength        = value;
+            p.tracking_status = 1;
+
+            if(!_output->push_back(p))
+            {
+                return; //Overflowed: stop trying to add more points
+            }
+        }
+    },
+    input);
+}