COMPMID-: Implement L2NormalizationLayer.

Change-Id: I2223850b84826a87650729d287c57c22bcab7462
Reviewed-on: http://mpd-gerrit.cambridge.arm.com/82767
Tested-by: Kaizen <jeremy.johnson+kaizengerrit@arm.com>
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>

1 files changed, 84 insertions, 0 deletions

diff --git a/src/runtime/NEON/functions/NEReductionOperation.cpp b/src/runtime/NEON/functions/NEReductionOperation.cpp
new file mode 100644
index 0000000000..45c3e5dbc9
--- /dev/null
+++ b/src/runtime/NEON/functions/NEReductionOperation.cpp
@@ -0,0 +1,84 @@
+/*
+ * 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/runtime/NEON/functions/NEReductionOperation.h"
+
+#include "arm_compute/core/Helpers.h"
+#include "arm_compute/runtime/NEON/NEScheduler.h"
+
+using namespace arm_compute;
+
+namespace
+{
+/** Define dimension to split the window
+ *
+ * @param[in] axis Reduction axis
+ *
+ * @return The dimension to split the window
+ */
+size_t reduction_window_split_dimension(unsigned int axis)
+{
+    switch(axis)
+    {
+        case 0:
+            return Window::DimY;
+        default:
+            ARM_COMPUTE_ERROR("Unsupported reduction axis");
+    }
+}
+BorderMode reduction_operation_border_mode(ReductionOperation op)
+{
+    switch(op)
+    {
+        case ReductionOperation::SUM_SQUARE:
+            return BorderMode::CONSTANT;
+        default:
+            return BorderMode::CONSTANT;
+    }
+}
+} // namespace
+
+NEReductionOperation::NEReductionOperation()
+    : _reduction_kernel(), _fill_border_kernel(), _window_split(0)
+{
+}
+
+void NEReductionOperation::configure(ITensor *input, ITensor *output, unsigned int axis, ReductionOperation op)
+{
+    ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(input, 1, DataType::F32);
+
+    // Configure reduction kernel
+    _reduction_kernel.configure(input, output, axis, op);
+    _window_split = reduction_window_split_dimension(axis);
+
+    // Configure fill border kernel
+    BorderSize fill_border_size = (axis == 0) ? _reduction_kernel.border_size() : BorderSize();
+    BorderMode fill_border_mode = reduction_operation_border_mode(op);
+    _fill_border_kernel.configure(input, fill_border_size, fill_border_mode, PixelValue(0));
+}
+
+void NEReductionOperation::run()
+{
+    NEScheduler::get().schedule(&_fill_border_kernel, Window::DimY);
+    NEScheduler::get().schedule(&_reduction_kernel, _window_split);
+}