| /* |
| * Copyright (c) 2017-2019 ARM Limited. |
| * |
| * SPDX-License-Identifier: MIT |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to |
| * deal in the Software without restriction, including without limitation the |
| * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
| * sell copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in all |
| * copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| * SOFTWARE. |
| */ |
| #ifndef ARM_COMPUTE_TEST_ACTIVATION_LAYER_H |
| #define ARM_COMPUTE_TEST_ACTIVATION_LAYER_H |
| |
| #include "tests/SimpleTensor.h" |
| #include "tests/validation/Helpers.h" |
| |
| namespace arm_compute |
| { |
| namespace test |
| { |
| namespace validation |
| { |
| namespace reference |
| { |
| template <typename T> |
| inline T activate_float(T x, T a, T b, ActivationLayerInfo::ActivationFunction activation) |
| { |
| T ret; |
| |
| switch(activation) |
| { |
| case ActivationLayerInfo::ActivationFunction::ABS: |
| ret = std::abs(x); |
| break; |
| case ActivationLayerInfo::ActivationFunction::LINEAR: |
| ret = a * x + b; |
| break; |
| case ActivationLayerInfo::ActivationFunction::LOGISTIC: |
| ret = static_cast<T>(1) / (static_cast<T>(1) + std::exp(-x)); |
| break; |
| case ActivationLayerInfo::ActivationFunction::RELU: |
| ret = std::max<T>(static_cast<T>(0), x); |
| break; |
| case ActivationLayerInfo::ActivationFunction::BOUNDED_RELU: |
| ret = std::min<T>(a, std::max(static_cast<T>(0), x)); |
| break; |
| case ActivationLayerInfo::ActivationFunction::LU_BOUNDED_RELU: |
| ret = std::min<T>(a, std::max<T>(b, x)); |
| break; |
| case ActivationLayerInfo::ActivationFunction::LEAKY_RELU: |
| ret = (x > 0) ? x : a * x; |
| break; |
| case ActivationLayerInfo::ActivationFunction::SOFT_RELU: |
| ret = std::log(static_cast<T>(1) + std::exp(x)); |
| break; |
| case ActivationLayerInfo::ActivationFunction::ELU: |
| ret = (x > 0) ? x : a * (std::exp(x) - static_cast<T>(1)); |
| break; |
| case ActivationLayerInfo::ActivationFunction::SQRT: |
| ret = std::sqrt(x); |
| break; |
| case ActivationLayerInfo::ActivationFunction::SQUARE: |
| ret = x * x; |
| break; |
| case ActivationLayerInfo::ActivationFunction::TANH: |
| ret = a * std::tanh(b * x); |
| break; |
| case ActivationLayerInfo::ActivationFunction::IDENTITY: |
| ret = x; |
| break; |
| default: |
| ARM_COMPUTE_ERROR("Unsupported activation function"); |
| break; |
| } |
| |
| return ret; |
| } |
| |
| template <typename T> |
| SimpleTensor<T> activation_layer(const SimpleTensor<T> &src, ActivationLayerInfo info, const QuantizationInfo &oq_info = QuantizationInfo()); |
| } // namespace reference |
| } // namespace validation |
| } // namespace test |
| } // namespace arm_compute |
| #endif /* ARM_COMPUTE_TEST_ACTIVATION_LAYER_H */ |