1 /* 2 * Copyright (c) 2020 Arm Limited. 3 * 4 * SPDX-License-Identifier: MIT 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a copy 7 * of this software and associated documentation files (the "Software"), to 8 * deal in the Software without restriction, including without limitation the 9 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or 10 * sell copies of the Software, and to permit persons to whom the Software is 11 * furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in all 14 * copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 22 * SOFTWARE. 23 */ 24 #ifndef ARM_COMPUTE_NEMAXUNPOOLINGLAYERKERNEL_H 25 #define ARM_COMPUTE_NEMAXUNPOOLINGLAYERKERNEL_H 26 27 #include "src/core/NEON/INEKernel.h" 28 29 namespace arm_compute 30 { 31 class ITensor; 32 33 /** Interface for the pooling layer kernel */ 34 class NEMaxUnpoolingLayerKernel : public INEKernel 35 { 36 public: name()37 const char *name() const override 38 { 39 return "NEMaxUnpoolingLayerKernel"; 40 } 41 /** Default constructor */ 42 NEMaxUnpoolingLayerKernel(); 43 /** Prevent instances of this class from being copied (As this class contains pointers) */ 44 NEMaxUnpoolingLayerKernel(const NEMaxUnpoolingLayerKernel &) = delete; 45 /** Prevent instances of this class from being copied (As this class contains pointers) */ 46 NEMaxUnpoolingLayerKernel &operator=(const NEMaxUnpoolingLayerKernel &) = delete; 47 /** Allow instances of this class to be moved */ 48 NEMaxUnpoolingLayerKernel(NEMaxUnpoolingLayerKernel &&) = default; 49 /** Allow instances of this class to be moved */ 50 NEMaxUnpoolingLayerKernel &operator=(NEMaxUnpoolingLayerKernel &&) = default; 51 /** Default destructor */ 52 ~NEMaxUnpoolingLayerKernel() = default; 53 /** Set the input and output tensors. 54 * 55 * @note Output shape must be equal to the shape of the original input to pool. 56 * 57 * @param[in] input Source tensor. Data types supported: QASYMM8/QASYMM8_SIGNED/F16/F32. 58 * @param[in] indices Tensor containing the offset to store the input elements in the output tensor. 59 * @ref NEPoolingLayerKernel with indices should precede this function in order to 60 * properly reconstruct the output tensor. 61 * The tensor shape of this tensor has to be equal to the input tensor shape. Data type supported: U32. 62 * @param[out] output Destination tensor. Data types supported: Same as @p input. 63 * @param[in] pool_info Contains pooling operation information described in @ref PoolingLayerInfo. 64 */ 65 void configure(const ITensor *input, const ITensor *indices, ITensor *output, const PoolingLayerInfo &pool_info); 66 /** Static function to check if given info will lead to a valid configuration of @ref NEMaxUnpoolingLayerKernel 67 * 68 * @param[in] input Source tensor info. Data types supported: QASYMM8/QASYMM8_SIGNED/F16/F32. 69 * @param[in] output Destination tensor info. Data types supported: Same as @p input. 70 * @param[in] indices Tensor info of the indices of the maximal values. Data type supported: U32. 71 * @param[in] pool_info Contains pooling operation information described in @ref PoolingLayerInfo. 72 * 73 * @return a status 74 */ 75 static Status validate(const ITensorInfo *input, const ITensorInfo *indices, const ITensorInfo *output, const PoolingLayerInfo &pool_info); 76 77 // Inherited methods overridden: 78 void run(const Window &window, const ThreadInfo &info) override; 79 80 private: 81 /** Function to perform 2x2 pooling and compute the pooling indices. The indices can be used for max unpool. 82 * 83 * @param[in] window_input Input region on which to execute the kernel. 84 */ 85 template <typename T> 86 void unpooling2(const Window &window_input); 87 88 using UnpoolingFunction = void (NEMaxUnpoolingLayerKernel::*)(const Window &window); 89 90 private: 91 UnpoolingFunction _func; 92 const ITensor *_input; 93 ITensor *_output; 94 const ITensor *_indices; 95 }; 96 } // namespace arm_compute 97 #endif /*ARM_COMPUTE_NEMAXUNPOOLINGLAYERKERNEL_H */ 98