1 /* 2 * Copyright (c) 2017-2021 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_NEACTIVATIONLAYER_H 25 #define ARM_COMPUTE_NEACTIVATIONLAYER_H 26 27 #include "arm_compute/runtime/IFunction.h" 28 29 #include "arm_compute/core/Types.h" 30 #include "arm_compute/runtime/IRuntimeContext.h" 31 32 #include <memory> 33 34 namespace arm_compute 35 { 36 // Forward declarations 37 class ITensor; 38 class ITensorInfo; 39 40 /** Basic function to run @ref cpu::kernels::CpuActivationKernel 41 * 42 * @note The function simulates an activation layer with the specified activation function. 43 */ 44 class NEActivationLayer : public IFunction 45 { 46 public: 47 /** Constructor 48 * 49 * @param[in] ctx Runtime context to be used by the function 50 */ 51 NEActivationLayer(IRuntimeContext *ctx = nullptr); 52 /** Prevent instances of this class from being copied (As this class contains pointers) */ 53 NEActivationLayer(const NEActivationLayer &) = delete; 54 /** Default move constructor */ 55 NEActivationLayer(NEActivationLayer &&); 56 /** Prevent instances of this class from being copied (As this class contains pointers) */ 57 NEActivationLayer &operator=(const NEActivationLayer &) = delete; 58 /** Default move assignment operator */ 59 NEActivationLayer &operator=(NEActivationLayer &&); 60 /** Destructor */ 61 ~NEActivationLayer(); 62 /** [NEActivationLayer snippet] **/ 63 /** Set the input and output tensor. 64 * 65 * Valid data layouts: 66 * - All 67 * 68 * Valid data type configurations: 69 * |src |dst | 70 * |:--------------|:--------------| 71 * |QASYMM8 |QASYMM8 | 72 * |QASYMM8_SIGNED |QASYMM8_SIGNED | 73 * |QSYMM16 |QSYMM16 | 74 * |F16 |F16 | 75 * |F32 |F32 | 76 * 77 * @note If the output tensor is a nullptr or is equal to the input, the activation function will be performed in-place 78 * 79 * @param[in, out] input Source tensor. In case of @p output tensor = nullptr, this tensor will store the result 80 * of the activation function. Data types supported: QASYMM8/QASYMM8_SIGNED/QSYMM16/F16/F32. 81 * @param[out] output Destination tensor. Data type supported: same as @p input 82 * @param[in] activation_info Activation layer parameters. 83 */ 84 void configure(ITensor *input, ITensor *output, ActivationLayerInfo activation_info); 85 /** [NEActivationLayer snippet] **/ 86 /** Static function to check if given info will lead to a valid configuration of @ref NEActivationLayer 87 * 88 * @param[in] input Source tensor info. In case of @p output tensor info = nullptr, this tensor will store the result 89 * of the activation function. Data types supported: QASYMM8/QASYMM8_SIGNED/QSYMM16/F16/F32. 90 * @param[in] output Destination tensor info. Data type supported: same as @p input 91 * @param[in] act_info Activation layer information. 92 * 93 * @return a status 94 */ 95 static Status validate(const ITensorInfo *input, const ITensorInfo *output, const ActivationLayerInfo &act_info); 96 97 // Inherited methods overridden 98 void run() override; 99 100 private: 101 struct Impl; 102 std::unique_ptr<Impl> _impl; 103 }; 104 } // namespace arm_computes 105 #endif /* ARM_COMPUTE_NEACTIVATIONLAYER_H */ 106