COMPMID-2387: Add support for NEMeanStdDevNormalizationLayer

Change-Id: If5a9558b78f9c696dfc72633f73e9e21e5c2970f
Signed-off-by: Michele Di Giorgio <michele.digiorgio@arm.com>
Reviewed-on: https://review.mlplatform.org/c/1351
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Pablo Marquez <pablo.tello@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>

2 files changed, 60 insertions, 0 deletions

diff --git a/arm_compute/runtime/NEON/NEFunctions.h b/arm_compute/runtime/NEON/NEFunctions.h
index 94607364b3..d44afcbb0f 100644
--- a/arm_compute/runtime/NEON/NEFunctions.h
+++ b/arm_compute/runtime/NEON/NEFunctions.h
@@ -100,6 +100,7 @@
 #include "arm_compute/runtime/NEON/functions/NELocallyConnectedLayer.h"
 #include "arm_compute/runtime/NEON/functions/NEMagnitude.h"
 #include "arm_compute/runtime/NEON/functions/NEMeanStdDev.h"
+#include "arm_compute/runtime/NEON/functions/NEMeanStdDevNormalizationLayer.h"
 #include "arm_compute/runtime/NEON/functions/NEMedian3x3.h"
 #include "arm_compute/runtime/NEON/functions/NEMinMaxLocation.h"
 #include "arm_compute/runtime/NEON/functions/NENonLinearFilter.h"
diff --git a/arm_compute/runtime/NEON/functions/NEMeanStdDevNormalizationLayer.h b/arm_compute/runtime/NEON/functions/NEMeanStdDevNormalizationLayer.h
new file mode 100644
index 0000000000..1a482bbebd
--- /dev/null
+++ b/arm_compute/runtime/NEON/functions/NEMeanStdDevNormalizationLayer.h
@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2019 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.
+ */
+#ifndef __ARM_COMPUTE_NEMEANSTDDEVNORMALIZATIONLAYER_H__
+#define __ARM_COMPUTE_NEMEANSTDDEVNORMALIZATIONLAYER_H__
+
+#include "arm_compute/core/Types.h"
+#include "arm_compute/runtime/NEON/INESimpleFunctionNoBorder.h"
+
+namespace arm_compute
+{
+class ITensor;
+
+/** Basic function to execute mean and standard deviation normalization by calling @ref NEMeanStdDevNormalizationKernel */
+class NEMeanStdDevNormalizationLayer : public INESimpleFunctionNoBorder
+{
+public:
+    /** Initialise the function's input and outputs.
+     *
+     * @note If the output tensor is a nullptr, the normalization will be performed in-place.
+     *
+     * @param[in, out] input   Input tensor with 2 dimensions. Data types supported: F16/F32.
+     * @param[out]     output  (Optional) Destination tensor. It can be nullptr in case of in-place computation. Data type supported: same as @p input
+     * @param[in]      epsilon (Optional) Small float to avoid division by zero in case of zero standard deviation. Defaults to 1e-8.
+     */
+    void configure(ITensor *input, ITensor *output = nullptr, float epsilon = 1e-8f);
+    /** Static function to check if given info will lead to a valid configuration of @ref NEMeanStdDevNormalizationKernel
+     *
+     * @param[in] input   Source tensor info with 2 dimensions. In case of @p output tensor info = nullptr,
+     *                    this tensor will store the result of the normalization. Data types supported: F16/F32.
+     * @param[in] output  (Optional) Destination tensor info. It can be nullptr in case of in-place computation. Data type supported: same as @p input
+     * @param[in] epsilon (Optional) Small float to avoid division by zero in case of zero standard deviation. Defaults to 1e-8.
+     *
+     * @return a status
+     */
+    static Status validate(const ITensorInfo *input, const ITensorInfo *output = nullptr, float epsilon = 1e-8f);
+};
+} // namespace arm_compute
+#endif /*__ARM_COMPUTE_NEMEANSTDDEVNORMALIZATIONLAYER_H__ */