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+/*
+ * Copyright (c) 2019 Samsung Electronics Co., Ltd. All Rights Reserved
+ * Copyright (c) 2016-2018 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_NEPRELUKERNEL_H__
+#define __ARM_COMPUTE_NEPRELUKERNEL_H__
+
+#include "arm_compute/core/NEON/INEKernel.h"
+
+namespace arm_compute
+{
+class ITensor;
+
+/** Interface for the kernel to perform Parametric Rectified Linear Unit
+ *
+ * Result is computed by:
+ * @f[ output(x) = alpha * x for x < 0, output(x) = x for x >= 0 @f]
+ */
+class NEPReLUKernel : public INEKernel
+{
+public:
+ const char *name() const override { return "NEPReLUKernel"; }
+ /** Default constructor */
+ NEPReLUKernel();
+ /** Prevent instances of this class from being copied (As this class contains pointers) */
+ NEPReLUKernel(const NEPReLUKernel &) = delete;
+ /** Prevent instances of this class from being copied (As this class contains pointers) */
+ NEPReLUKernel &operator=(const NEPReLUKernel &) = delete;
+ /** Allow instances of this class to be moved */
+ NEPReLUKernel(NEPReLUKernel &&) = default;
+ /** Allow instances of this class to be moved */
+ NEPReLUKernel &operator=(NEPReLUKernel &&) = default;
+ /** Initialise the kernel's inputs and output
+ *
+ * @param[in] input Input tensor. Data type supported: QASYMM8/F32
+ * @param[in] alpha Alpha tensor. Data types supported: Same as @p input
+ * @param[out] output Output tensor. Data types supported: Same as @p input
+ */
+ void configure(const ITensor *input, const ITensor *alpha, ITensor *output);
+
+ // Inherited methods overridden:
+ void run(const Window &window, const ThreadInfo &info) override;
+
+ /** Static function to check if given info will lead to a valid configuration of @ref
+ * NEPReLUKernel.h
+ *
+ * @param[in] input Input tensor input info. Data types supported: QASYMM8/F32.
+ * @param[in] alpha Alpha tensor input info. Data types supported: Same as @p input.
+ * @param[in] output Output tensor info. Data types supported: Same as @p input.
+ *
+ * @return a Status
+ */
+ static Status validate(const ITensorInfo *input, const ITensorInfo *alpha,
+ const ITensorInfo *output);
+ static Status validate_arguments(const ITensorInfo &input, const ITensorInfo &alpha,
+ const ITensorInfo &output);
+
+private:
+ const ITensor *_input; /**< Source tensor */
+ const ITensor *_alpha; /**< Alpha tensor */
+ ITensor *_output; /**< Destination tensor */
+};
+} // namespace arm_compute
+#endif /* __ARM_COMPUTE_NEPRELUKERNEL_H__ */