/* Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserve. Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. */ #pragma once #include "Function.h" namespace paddle { /** * \brief Function to multiply a value to values in specified sub continuous * region. Indices must be provided to indcate the location and shape of * the region and the multiplied value is passed by configure variable. * * * \param[out] outputs Output value. * \param[in] inputs Input data which contains NCHW information. * \param[in] indices Indices data to indcate the sub region. * \param[in] shape Tensor shape of input value. * \param[in] conf Configure variable which contains the multiplied value. */ template <DeviceType Device> void ScaleSubRegion(real* outputs, const real* inputs, const real* indices, const TensorShape shape, const FuncConfig& conf); /** * \brief Backward propagation function of ScaleSubRegion. * * \param[out] inGrad Gradients of previous layer. * \param[in] outGrad Output gradient. * \param[in] indices Indices data. * \param[in] shape The Shape of input tensor. * \param[in] conf Configure variable. */ template <DeviceType Device> void ScaleSubRegionGrad(const real* inGrad, real* outGrad, const real* indices, const TensorShape shape, const FuncConfig& conf); } // namespace paddle