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108 lines
3.2 KiB
108 lines
3.2 KiB
/* Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved.
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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 "BilinearInterpLayer.h"
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#include "paddle/utils/Logging.h"
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#include "paddle/utils/Stat.h"
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namespace paddle {
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REGISTER_LAYER(bilinear_interp, BilinearInterpLayer);
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size_t BilinearInterpLayer::getSize() {
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inImgH_ = inputLayers_[0]->getOutput().getFrameHeight();
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inImgW_ = inputLayers_[0]->getOutput().getFrameWidth();
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const BilinearInterpConfig& conf = config_.inputs(0).bilinear_interp_conf();
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if (inImgH_ == 0) {
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inImgH_ = conf.image_conf().img_size_y();
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}
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if (inImgW_ == 0) {
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inImgW_ = conf.image_conf().img_size();
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}
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outImgH_ = conf.out_size_y();
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outImgW_ = conf.out_size_x();
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numChannels_ = conf.image_conf().channels();
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CHECK(outImgH_ > 0 && outImgW_ > 0);
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CHECK(inImgH_ > 0 && inImgW_ > 0);
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CHECK(numChannels_);
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ratioH_ =
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(outImgH_ > 1) ? static_cast<real>(inImgH_ - 1) / (outImgH_ - 1) : 0.f;
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ratioW_ =
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(outImgW_ > 1) ? static_cast<real>(inImgW_ - 1) / (outImgW_ - 1) : 0.f;
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getOutput().setFrameHeight(outImgH_);
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getOutput().setFrameWidth(outImgW_);
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return outImgH_ * outImgW_ * numChannels_;
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}
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bool BilinearInterpLayer::init(const LayerMap& layerMap,
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const ParameterMap& parameterMap) {
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/* Initialize the basic parent class */
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Layer::init(layerMap, parameterMap);
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CHECK_EQ(1, config_.inputs_size());
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return true;
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}
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void BilinearInterpLayer::forward(PassType passType) {
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Layer::forward(passType);
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size_t batchSize = getInput(0).getBatchSize();
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size_t size = getSize();
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{
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REGISTER_TIMER_INFO("FwResetTimer", getName().c_str());
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resetOutput(batchSize, size);
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}
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MatrixPtr inV = getInputValue(0);
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MatrixPtr outV = getOutputValue();
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{
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REGISTER_TIMER_INFO("FwBilinearInterpTimer", getName().c_str());
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outV->bilinearForward(*inV,
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inImgH_,
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inImgW_,
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outImgH_,
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outImgW_,
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numChannels_,
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ratioH_,
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ratioW_);
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}
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}
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void BilinearInterpLayer::backward(const UpdateCallback& callback) {
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(void)callback;
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MatrixPtr inputG = getInputGrad(0);
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MatrixPtr outG = getOutputGrad();
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{
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REGISTER_TIMER_INFO("BwBilinearInterpTimer", getName().c_str());
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if (inputG) {
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inputG->bilinearBackward(*outG,
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outImgH_,
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outImgW_,
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inImgH_,
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inImgW_,
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numChannels_,
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ratioH_,
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ratioW_);
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}
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}
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}
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} // namespace paddle
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