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79 lines
2.6 KiB
79 lines
2.6 KiB
/* Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserve.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License. */
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#include "ScaleSubRegionLayer.h"
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#include "paddle/utils/Stat.h"
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namespace paddle {
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REGISTER_LAYER(scale_sub_region, ScaleSubRegionLayer);
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bool ScaleSubRegionLayer::init(const LayerMap& layerMap,
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const ParameterMap& parameterMap) {
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Layer::init(layerMap, parameterMap);
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CHECK_EQ(static_cast<int>(inputLayers_.size()), 2);
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auto& conf = config_.inputs(0).scale_sub_region_conf();
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value_ = conf.value();
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createFunction(forward_, "ScaleSubRegion", FuncConfig().set("value", value_));
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createFunction(
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backward_, "ScaleSubRegionGrad", FuncConfig().set("value", value_));
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return true;
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}
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void ScaleSubRegionLayer::forward(PassType passType) {
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Layer::forward(passType);
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auto in0 = getInput(0);
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imgH_ = in0.getFrameHeight();
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imgW_ = in0.getFrameWidth();
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if (imgH_ == 0 || imgW_ == 0) {
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auto& conf = config_.inputs(0).scale_sub_region_conf();
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imgH_ = conf.image_conf().img_size_y();
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imgW_ = conf.image_conf().img_size();
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}
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MatrixPtr imgV = in0.value;
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size_t batchSize = imgV->getHeight();
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size_t spatialSize = imgH_ * imgW_;
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channelsNum_ = imgV->getWidth() / spatialSize;
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shape_ = TensorShape({batchSize, channelsNum_, imgH_, imgW_});
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resetOutput(batchSize, imgV->getWidth());
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auto& out = getOutput();
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out.setFrameHeight(imgH_);
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out.setFrameWidth(imgW_);
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MatrixPtr indicesV = getInputValue(1);
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indicesShape_ = TensorShape({batchSize, 6});
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REGISTER_TIMER_INFO("ScaleSubRegionForward", getName().c_str());
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BufferArgs inArgs;
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BufferArgs outArgs;
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inArgs.addArg(*imgV, shape_);
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inArgs.addArg(*indicesV, indicesShape_);
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outArgs.addArg(*out.value, shape_, ASSIGN_TO);
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forward_[0]->calc(inArgs, outArgs);
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}
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void ScaleSubRegionLayer::backward(const UpdateCallback& callback) {
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REGISTER_TIMER_INFO("ScaleSubRegionBackward", getName().c_str());
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BufferArgs inArgs;
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BufferArgs outArgs;
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inArgs.addArg(*getOutputGrad(), shape_);
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inArgs.addArg(*getInputValue(1), indicesShape_);
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outArgs.addArg(*getInputGrad(0), shape_, ADD_TO);
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backward_[0]->calc(inArgs, outArgs);
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}
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} // namespace paddle
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