Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2017 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/FixedPoint.h" |
Gian Marco Iodice | b30dcc5 | 2017-06-20 09:07:21 +0100 | [diff] [blame^] | 28 | #include "arm_compute/core/NEON/INEKernel.h" |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 29 | |
| 30 | namespace arm_compute |
| 31 | { |
| 32 | class ITensor; |
| 33 | |
| 34 | /** Interface for the activation layer kernel. */ |
Gian Marco Iodice | b30dcc5 | 2017-06-20 09:07:21 +0100 | [diff] [blame^] | 35 | class NEActivationLayerKernel : public INEKernel |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 36 | { |
| 37 | public: |
| 38 | /** Constructor */ |
| 39 | NEActivationLayerKernel(); |
| 40 | /** Prevent instances of this class from being copied (As this class contains pointers) */ |
| 41 | NEActivationLayerKernel(const NEActivationLayerKernel &) = delete; |
| 42 | /** Default move constructor */ |
| 43 | NEActivationLayerKernel(NEActivationLayerKernel &&) = default; |
| 44 | /** Prevent instances of this class from being copied (As this class contains pointers) */ |
| 45 | NEActivationLayerKernel &operator=(const NEActivationLayerKernel &) = delete; |
| 46 | /** Default move assignment operator */ |
| 47 | NEActivationLayerKernel &operator=(NEActivationLayerKernel &&) = default; |
| 48 | /** Set the input and output tensor. |
| 49 | * |
Gian Marco Iodice | b30dcc5 | 2017-06-20 09:07:21 +0100 | [diff] [blame^] | 50 | * @note If the output tensor is a nullptr, the activation function will be performed in-place |
| 51 | * |
| 52 | * @param[in, out] input Source tensor. In case of @p output tensor = nullptr, this tensor will store the result |
| 53 | * of the activation function. Data types supported: QS8/F32. |
| 54 | * @param[out] output Destination tensor. Data type supported: same as @p input |
| 55 | * @param[in] activation_info Activation layer information. |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 56 | */ |
Gian Marco Iodice | b30dcc5 | 2017-06-20 09:07:21 +0100 | [diff] [blame^] | 57 | void configure(ITensor *input, ITensor *output, ActivationLayerInfo activation_info); |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 58 | |
| 59 | // Inherited methods overridden: |
| 60 | void run(const Window &window) override; |
| 61 | |
| 62 | private: |
| 63 | using ActivationFunction = ActivationLayerInfo::ActivationFunction; |
| 64 | /** Common signature for all the specialised @ref NEActivationLayerKernel functions |
| 65 | * |
| 66 | * @param[in] window Region on which to execute the kernel. |
| 67 | */ |
| 68 | using ActivationFunctionExecutorPtr = void (NEActivationLayerKernel::*)(const Window &window); |
| 69 | /** Function to apply an activation function on a tensor. |
| 70 | * |
| 71 | * @param[in] window Region on which to execute the kernel |
| 72 | */ |
| 73 | template <ActivationLayerInfo::ActivationFunction F, typename T> |
| 74 | typename std::enable_if<std::is_same<T, float>::value, void>::type activation(const Window &window); |
| 75 | /** Function to apply an activation function on a tensor. |
| 76 | * |
| 77 | * @param[in] window Region on which to execute the kernel |
| 78 | */ |
| 79 | template <ActivationLayerInfo::ActivationFunction F, typename T> |
| 80 | typename std::enable_if<std::is_same<T, qint8_t>::value, void>::type activation(const Window &window); |
| 81 | |
| 82 | private: |
Gian Marco Iodice | b30dcc5 | 2017-06-20 09:07:21 +0100 | [diff] [blame^] | 83 | ITensor *_input; |
| 84 | ITensor *_output; |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 85 | ActivationFunctionExecutorPtr _func; |
| 86 | ActivationLayerInfo _act_info; |
| 87 | }; |
| 88 | } |
| 89 | #endif /*__ARM_COMPUTE_NEACTIVATIONLAYERKERNEL_H__ */ |