COMPMID-344 Updated doxygen

Change-Id: I32f7b84daa560e460b77216add529c8fa8b327ae
diff --git a/src/runtime/CL/functions/CLSobel7x7.cpp b/src/runtime/CL/functions/CLSobel7x7.cpp
new file mode 100644
index 0000000..db84fa9
--- /dev/null
+++ b/src/runtime/CL/functions/CLSobel7x7.cpp
@@ -0,0 +1,81 @@
+/*
+ * 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/runtime/CL/functions/CLSobel7x7.h"
+
+#include "arm_compute/core/CL/ICLTensor.h"
+#include "arm_compute/core/CL/kernels/CLSobel7x7Kernel.h"
+#include "arm_compute/core/PixelValue.h"
+#include "arm_compute/core/TensorInfo.h"
+#include "arm_compute/core/Validate.h"
+#include "arm_compute/runtime/CL/CLScheduler.h"
+#include "arm_compute/runtime/ITensorAllocator.h"
+
+using namespace arm_compute;
+
+CLSobel7x7::CLSobel7x7()
+    : _sobel_hor(), _sobel_vert(), _border_handler(), _tmp_x(), _tmp_y()
+{
+}
+
+void CLSobel7x7::configure(ICLTensor *input, ICLTensor *output_x, ICLTensor *output_y, BorderMode border_mode, uint8_t constant_border_value)
+{
+    ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(input, 1, DataType::U8);
+
+    const bool run_sobel_x = output_x != nullptr;
+    const bool run_sobel_y = output_y != nullptr;
+
+    TensorInfo tensor_info(input->info()->tensor_shape(), 1, DataType::S32);
+
+    if(run_sobel_x && run_sobel_y)
+    {
+        _tmp_x.allocator()->init(tensor_info);
+        _tmp_y.allocator()->init(tensor_info);
+        _sobel_hor.configure(input, &_tmp_x, &_tmp_y, border_mode == BorderMode::UNDEFINED);
+        _sobel_vert.configure(&_tmp_x, &_tmp_y, output_x, output_y, border_mode == BorderMode::UNDEFINED);
+        _tmp_x.allocator()->allocate();
+        _tmp_y.allocator()->allocate();
+    }
+    else if(run_sobel_x)
+    {
+        _tmp_x.allocator()->init(tensor_info);
+        _sobel_hor.configure(input, &_tmp_x, nullptr, border_mode == BorderMode::UNDEFINED);
+        _sobel_vert.configure(&_tmp_x, nullptr, output_x, nullptr, border_mode == BorderMode::UNDEFINED);
+        _tmp_x.allocator()->allocate();
+    }
+    else if(run_sobel_y)
+    {
+        _tmp_y.allocator()->init(tensor_info);
+        _sobel_hor.configure(input, nullptr, &_tmp_y, border_mode == BorderMode::UNDEFINED);
+        _sobel_vert.configure(nullptr, &_tmp_y, nullptr, output_y, border_mode == BorderMode::UNDEFINED);
+        _tmp_y.allocator()->allocate();
+    }
+    _border_handler.configure(input, _sobel_hor.border_size(), border_mode, PixelValue(constant_border_value));
+}
+
+void CLSobel7x7::run()
+{
+    CLScheduler::get().enqueue(_border_handler, false);
+    CLScheduler::get().enqueue(_sobel_hor, false);
+    CLScheduler::get().enqueue(_sobel_vert);
+}