/*
 * Created by Marcos Luciano
 * https://www.github.com/marcoslucianops
 */

#include "upsample_layer.h"

nvinfer1::ITensor* upsampleLayer(
    int layerIdx,
    std::map<std::string, std::string>& block,
    nvinfer1::ITensor* input,
    nvinfer1::INetworkDefinition* network)
{
    nvinfer1::ITensor* output;

    assert(block.at("type") == "upsample");
    assert(block.find("stride") != block.end());

    int stride = std::stoi(block.at("stride"));

    float scale[3] = {1, static_cast<float>(stride), static_cast<float>(stride)};

    nvinfer1::IResizeLayer* resize = network->addResize(*input);
    assert(resize != nullptr);
    std::string resizeLayerName = "upsample_" + std::to_string(layerIdx);
    resize->setName(resizeLayerName.c_str());
    resize->setResizeMode(nvinfer1::ResizeMode::kNEAREST);
    resize->setScales(scale, 3);
    output = resize->getOutput(0);

    return output;
}