1 /* 2 * Copyright (c) 2019-2022 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_NEINSTANCENORMALIZATIONLAYERKERNEL_H 25 #define ARM_COMPUTE_NEINSTANCENORMALIZATIONLAYERKERNEL_H 26 27 #include "src/core/NEON/INEKernel.h" 28 29 namespace arm_compute 30 { 31 class ITensor; 32 struct InstanceNormalizationLayerKernelInfo; 33 34 /** Interface for performing an instance normalization */ 35 class NEInstanceNormalizationLayerKernel : public INEKernel 36 { 37 public: name()38 const char *name() const override 39 { 40 return "NEInstanceNormalizationLayerKernel"; 41 } 42 /** Default constructor */ 43 NEInstanceNormalizationLayerKernel(); 44 /** Prevent instances of this class from being copied (As this class contains pointers) */ 45 NEInstanceNormalizationLayerKernel(const NEInstanceNormalizationLayerKernel &) = delete; 46 /** Prevent instances of this class from being copied (As this class contains pointers) */ 47 NEInstanceNormalizationLayerKernel &operator=(const NEInstanceNormalizationLayerKernel &) = delete; 48 /** Allow instances of this class to be moved */ 49 NEInstanceNormalizationLayerKernel(NEInstanceNormalizationLayerKernel &&) = default; 50 /** Allow instances of this class to be moved */ 51 NEInstanceNormalizationLayerKernel &operator=(NEInstanceNormalizationLayerKernel &&) = default; 52 /** Default destructor */ 53 ~NEInstanceNormalizationLayerKernel() = default; 54 /** Set the input and output tensors. 55 * 56 * @param[in, out] input Source tensor. Data types supported: F16/F32. Data layout supported: NCHW 57 * In case of @p output tensor = nullptr this tensor will store the result of the normalization. 58 * @param[out] output Destination tensor. Data types and data layouts supported: same as @p input. 59 * @param[in] info Kernel meta-data descriptor 60 */ 61 void configure(ITensor *input, ITensor *output, const InstanceNormalizationLayerKernelInfo &info); 62 63 /** Static function to check if given info will lead to a valid configuration of @ref NEInstanceNormalizationLayer. 64 * 65 * @param[in] input Source tensor info. Data types supported: F16/F32. Data layout supported: NCHW 66 * @param[in] output Destination tensor info. Data types and data layouts supported: same as @p input. 67 * @param[in] info Kernel meta-data descriptor 68 * 69 * @return a status 70 */ 71 static Status validate(const ITensorInfo *input, const ITensorInfo *output, const InstanceNormalizationLayerKernelInfo &info); 72 73 // Inherited methods overridden: 74 void run(const Window &window, const ThreadInfo &info) override; 75 76 private: 77 /** Common signature for all the specialized instance normalization functions 78 * 79 * @param[in, out] input An input tensor. In case of @p output tensor = nullptr this tensor will store the result of the normalization. 80 * @param[out] output The output tensor. 81 * @param[in] gamma The scale scalar value applied to the normalized tensor. Defaults to 1.0 82 * @param[in] beta The offset scalar value applied to the normalized tensor. Defaults to 0.0 83 * @param[in] epsilon Lower bound value for the normalization. Defaults to 1e-12 84 */ 85 using NormalizationFunction = void(ITensor *input, ITensor *output, float gamma, float beta, float epsilon, const Window &window); 86 87 ITensor *_input; 88 ITensor *_output; 89 float _gamma; 90 float _beta; 91 float _epsilon; 92 bool _use_mixed_precision{ true }; 93 }; 94 } // namespace arm_compute 95 #endif /*ARM_COMPUTE_NEINSTANCENORMALIZATIONLAYERKERNEL_H */ 96