1 /* 2 * Copyright (c) 2017-2020 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_NEACTIVATIONLAYERKERNEL_H 25 #define ARM_COMPUTE_NEACTIVATIONLAYERKERNEL_H 26 27 #include "arm_compute/core/utils/misc/Traits.h" 28 #include "src/core/NEON/INEKernel.h" 29 30 #ifdef __ARM_FEATURE_FP16_VECTOR_ARITHMETIC 31 #include <arm_fp16.h> 32 #endif /* __ARM_FEATURE_FP16_VECTOR_ARITHMETIC */ 33 34 namespace arm_compute 35 { 36 // Forward declarations 37 class ITensor; 38 39 /** Interface for the activation layer kernel. */ 40 class NEActivationLayerKernel : public INEKernel 41 { 42 public: name()43 const char *name() const override 44 { 45 return "NEActivationLayerKernel"; 46 } 47 /** Constructor */ 48 NEActivationLayerKernel(); 49 /** Prevent instances of this class from being copied (As this class contains pointers) */ 50 NEActivationLayerKernel(const NEActivationLayerKernel &) = delete; 51 /** Default move constructor */ 52 NEActivationLayerKernel(NEActivationLayerKernel &&) = default; 53 /** Prevent instances of this class from being copied (As this class contains pointers) */ 54 NEActivationLayerKernel &operator=(const NEActivationLayerKernel &) = delete; 55 /** Default move assignment operator */ 56 NEActivationLayerKernel &operator=(NEActivationLayerKernel &&) = default; 57 /** Default destructor */ 58 ~NEActivationLayerKernel() = default; 59 /** Set the input and output tensor. 60 * 61 * @note If the output tensor is a nullptr, the activation function will be performed in-place 62 * 63 * @param[in, out] input Source tensor info. In case of @p output tensor = nullptr, this tensor will store the result 64 * of the activation function. Data types supported: QASYMM8/QASYMM8_SIGNED/QSYMM16/F16/F32. 65 * @param[out] output Destination tensor info. Data type supported: same as @p input 66 * @param[in] activation_info Activation layer information. 67 */ 68 void configure(const ITensorInfo *input, ITensorInfo *output, ActivationLayerInfo activation_info); 69 /** Static function to check if given info will lead to a valid configuration of @ref NEActivationLayerKernel 70 * 71 * @param[in] input Source tensor info. In case of @p output tensor info = nullptr, this tensor will store the result 72 * of the activation function. Data types supported: QASYMM8/QASYMM8_SIGNED/QSYMM16/F16/F32. 73 * @param[in] output Destination tensor info. Data type supported: same as @p input 74 * @param[in] act_info Activation layer information. 75 * 76 * @return a status 77 */ 78 static Status validate(const ITensorInfo *input, const ITensorInfo *output, const ActivationLayerInfo &act_info); 79 80 // Inherited methods overridden: 81 void run_op(ITensorPack &tensors, const Window &window, const ThreadInfo &info) override; 82 83 private: 84 ActivationLayerInfo _act_info; 85 }; 86 } // namespace arm_compute 87 #endif /*ARM_COMPUTE_NEACTIVATIONLAYERKERNEL_H */ 88