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/*
* Copyright (c) 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_NEMAXUNPOOLINGLAYERKERNEL_H
#define ARM_COMPUTE_NEMAXUNPOOLINGLAYERKERNEL_H
#include "arm_compute/core/NEON/INEKernel.h"
namespace arm_compute
{
class ITensor;
/** Interface for the pooling layer kernel */
class NEMaxUnpoolingLayerKernel : public INEKernel
{
public:
const char *name() const override
{
return "NEMaxUnpoolingLayerKernel";
}
/** Default constructor */
NEMaxUnpoolingLayerKernel();
/** Prevent instances of this class from being copied (As this class contains pointers) */
NEMaxUnpoolingLayerKernel(const NEMaxUnpoolingLayerKernel &) = delete;
/** Prevent instances of this class from being copied (As this class contains pointers) */
NEMaxUnpoolingLayerKernel &operator=(const NEMaxUnpoolingLayerKernel &) = delete;
/** Allow instances of this class to be moved */
NEMaxUnpoolingLayerKernel(NEMaxUnpoolingLayerKernel &&) = default;
/** Allow instances of this class to be moved */
NEMaxUnpoolingLayerKernel &operator=(NEMaxUnpoolingLayerKernel &&) = default;
/** Default destructor */
~NEMaxUnpoolingLayerKernel() = default;
/** Set the input and output tensors.
*
* @note Output shape must be equal to the shape of the original input to pool.
*
* @param[in] input Source tensor. Data types supported: QASYMM8/QASYMM8_SIGNED/F16/F32.
* @param[out] indices The indices of the maximal values. Data type supported: U32.
* @param[out] output Destination tensor. Data types supported: Same as @p input.
* @param[in] pool_info Contains pooling operation information described in @ref PoolingLayerInfo.
*/
void configure(const ITensor *input, const ITensor *indices, ITensor *output, const PoolingLayerInfo &pool_info);
/** Static function to check if given info will lead to a valid configuration of @ref NEMaxUnpoolingLayerKernel
*
* @param[in] input Source tensor info. Data types supported: QASYMM8/QASYMM8_SIGNED/F16/F32.
* @param[in] output Destination tensor info. Data types supported: Same as @p input.
* @param[in] indices Tensor info of the indices of the maximal values. Data type supported: U32.
* @param[in] pool_info Contains pooling operation information described in @ref PoolingLayerInfo.
*
* @return a status
*/
static Status validate(const ITensorInfo *input, const ITensorInfo *indices, const ITensorInfo *output, const PoolingLayerInfo &pool_info);
// Inherited methods overridden:
void run(const Window &window, const ThreadInfo &info) override;
private:
/** Function to perform 2x2 pooling and compute the pooling indices. The indices can be used for max unpool.
*
* @param[in] window_input Input region on which to execute the kernel.
*/
template <typename T>
void unpooling2(const Window &window_input);
using UnpoolingFunction = void (NEMaxUnpoolingLayerKernel::*)(const Window &window);
private:
UnpoolingFunction _func;
const ITensor *_input;
ITensor *_output;
const ITensor *_indices;
};
} // namespace arm_compute
#endif /*ARM_COMPUTE_NEMAXUNPOOLINGLAYERKERNEL_H */
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