86 lines
3.1 KiB
C++
86 lines
3.1 KiB
C++
/*
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* Created by Marcos Luciano
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* https://www.github.com/marcoslucianops
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*/
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#include "upsample_layer.h"
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nvinfer1::ILayer* upsampleLayer(
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int layerIdx,
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std::map<std::string, std::string>& block,
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std::vector<float>& weights,
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std::vector<nvinfer1::Weights>& trtWeights,
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int& inputChannels,
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nvinfer1::ITensor* input,
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nvinfer1::INetworkDefinition* network)
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{
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assert(block.at("type") == "upsample");
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nvinfer1::Dims inpDims = input->getDimensions();
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assert(inpDims.nbDims == 3);
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assert(inpDims.d[1] == inpDims.d[2]);
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int h = inpDims.d[1];
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int w = inpDims.d[2];
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int stride = std::stoi(block.at("stride"));
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nvinfer1::Dims preDims{3,
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{1, stride * h, w},
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{nvinfer1::DimensionType::kCHANNEL, nvinfer1::DimensionType::kSPATIAL,
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nvinfer1::DimensionType::kSPATIAL}};
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int size = stride * h * w;
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nvinfer1::Weights preMul{nvinfer1::DataType::kFLOAT, nullptr, size};
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float* preWt = new float[size];
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for (int i = 0, idx = 0; i < h; ++i)
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{
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for (int s = 0; s < stride; ++s)
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{
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for (int j = 0; j < w; ++j, ++idx)
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{
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preWt[idx] = (i == j) ? 1.0 : 0.0;
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}
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}
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}
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preMul.values = preWt;
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trtWeights.push_back(preMul);
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nvinfer1::IConstantLayer* preM = network->addConstant(preDims, preMul);
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assert(preM != nullptr);
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std::string preLayerName = "preMul_" + std::to_string(layerIdx);
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preM->setName(preLayerName.c_str());
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nvinfer1::Dims postDims{3,
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{1, h, stride * w},
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{nvinfer1::DimensionType::kCHANNEL, nvinfer1::DimensionType::kSPATIAL,
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nvinfer1::DimensionType::kSPATIAL}};
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size = stride * h * w;
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nvinfer1::Weights postMul{nvinfer1::DataType::kFLOAT, nullptr, size};
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float* postWt = new float[size];
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for (int i = 0, idx = 0; i < h; ++i)
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{
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for (int j = 0; j < stride * w; ++j, ++idx)
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{
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postWt[idx] = (j / stride == i) ? 1.0 : 0.0;
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}
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}
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postMul.values = postWt;
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trtWeights.push_back(postMul);
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nvinfer1::IConstantLayer* post_m = network->addConstant(postDims, postMul);
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assert(post_m != nullptr);
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std::string postLayerName = "postMul_" + std::to_string(layerIdx);
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post_m->setName(postLayerName.c_str());
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nvinfer1::IMatrixMultiplyLayer* mm1
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= network->addMatrixMultiply(*preM->getOutput(0), nvinfer1::MatrixOperation::kNONE, *input,
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nvinfer1::MatrixOperation::kNONE);
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assert(mm1 != nullptr);
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std::string mm1LayerName = "mm1_" + std::to_string(layerIdx);
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mm1->setName(mm1LayerName.c_str());
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nvinfer1::IMatrixMultiplyLayer* mm2
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= network->addMatrixMultiply(*mm1->getOutput(0), nvinfer1::MatrixOperation::kNONE,
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*post_m->getOutput(0), nvinfer1::MatrixOperation::kNONE);
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assert(mm2 != nullptr);
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std::string mm2LayerName = "mm2_" + std::to_string(layerIdx);
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mm2->setName(mm2LayerName.c_str());
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return mm2;
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} |