text: /*
   * Copyright (c) 2019-2020 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_NEPRELULAYER_H
  #define ARM_COMPUTE_NEPRELULAYER_H
  
  #include "arm_compute/core/Types.h"
  #include "arm_compute/runtime/IFunction.h"
  #include "arm_compute/runtime/NEON/INEOperator.h"
  
  namespace arm_compute
  {
  class ITensor;
  class ITensorInfo;
  
  namespace experimental
  {
  /** Basic function to run @ref NEArithmeticOperationKernel for PRELU
   *
   * @note The function implements an activation layer with the PRELU activation function.
   */
  class NEPRelu : public INEOperator
  {
  public:
      /** Set the input and output tensor.
       *
       * @param[in]  input  Source tensor info. Data types supported: QASYMM8/QASYMM8_SIGNED/F16/F32.
       * @param[in]  alpha  Source alpha tensor info. Data types supported: same of @p input.
       * @param[out] output Destination tensor info. Data type supported: same as @p input
       */
      void configure(const ITensorInfo *input, const ITensorInfo *alpha, ITensorInfo *output);
      /** Static function to check if given info will lead to a valid configuration of @ref NEComparisonOperationKernel
       *
       * @param[in] input  Source tensor info. Data types supported: QASYMM8/QASYMM8_SIGNED/F16/F32.
       * @param[in] alpha  Source alpha tensor info. Data types supported: same of @p input.
       * @param[in] output Destination tensor info. Data type supported: same as @p input
       *
       * @return a status
       */
      static Status validate(const ITensorInfo *input, const ITensorInfo *alpha, const ITensorInfo *output);
  };
  } // namespace experimental
  
  /** Basic function to run @ref NEArithmeticOperationKernel for PRELU
   *
   * @note The function implements an activation layer with the PRELU activation function.
   */
  class NEPReluLayer : public IFunction
  {
  public:
      /** Default Constructor */
      NEPReluLayer();
      /** Default Destructor */
      ~NEPReluLayer();
      /** Prevent instances of this class from being copied (As this class contains pointers) */
      NEPReluLayer(const NEPReluLayer &) = delete;
      /** Default move constructor */
      NEPReluLayer(NEPReluLayer &&);
      /** Prevent instances of this class from being copied (As this class contains pointers) */
      NEPReluLayer &operator=(const NEPReluLayer &) = delete;
      /** Default move assignment operator */
      NEPReluLayer &operator=(NEPReluLayer &&);
      /** Set the input and output tensor.
       *
       * @param[in]  input  Source tensor. Data types supported: QASYMM8/QASYMM8_SIGNED/F16/F32.
       * @param[in]  alpha  Source alpha tensor. Data types supported: same of @p input.
       * @param[out] output Destination tensor. Data type supported: same as @p input
       */
      void configure(const ITensor *input, const ITensor *alpha, ITensor *output);
      /** Static function to check if given info will lead to a valid configuration of @ref NEPReluLayer
       *
       * @param[in] input  Source tensor info. Data types supported: QASYMM8/QASYMM8_SIGNED/F16/F32.
       * @param[in] alpha  Source alpha tensor info. Data types supported: same of @p input.
       * @param[in] output Destination tensor info. Data type supported: same as @p input
       *
       * @return a status
       */
      static Status validate(const ITensorInfo *input, const ITensorInfo *alpha, const ITensorInfo *output);
  
      // Inherited methods overridden:
      void run() override;
  
  private:
      struct Impl;
      std::unique_ptr<Impl> _impl;
  };
  } // namespace arm_compute
  #endif /* ARM_COMPUTE_NEPRELULAYER_H */
  