162 lines
4.6 KiB
C++
162 lines
4.6 KiB
C++
/*
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* Copyright (c) 2019-2021, NVIDIA CORPORATION. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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* Edited by Marcos Luciano
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* https://www.github.com/marcoslucianops
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*/
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#include "utils.h"
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#include <iomanip>
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#include <algorithm>
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#include <experimental/filesystem>
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static void
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leftTrim(std::string& s)
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{
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s.erase(s.begin(), std::find_if(s.begin(), s.end(), [](int ch) { return !isspace(ch); }));
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}
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static void
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rightTrim(std::string& s)
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{
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s.erase(std::find_if(s.rbegin(), s.rend(), [](int ch) { return !isspace(ch); }).base(), s.end());
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}
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std::string
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trim(std::string s)
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{
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leftTrim(s);
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rightTrim(s);
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return s;
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}
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float
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clamp(const float val, const float minVal, const float maxVal)
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{
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assert(minVal <= maxVal);
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return std::min(maxVal, std::max(minVal, val));
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}
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bool
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fileExists(const std::string fileName, bool verbose)
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{
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if (!std::experimental::filesystem::exists(std::experimental::filesystem::path(fileName))) {
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if (verbose)
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std::cout << "\nFile does not exist: " << fileName << std::endl;
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return false;
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}
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return true;
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}
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std::vector<float>
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loadWeights(const std::string weightsFilePath, const std::string& networkType)
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{
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assert(fileExists(weightsFilePath));
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std::cout << "\nLoading pre-trained weights" << std::endl;
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std::vector<float> weights;
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if (weightsFilePath.find(".weights") != std::string::npos) {
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std::ifstream file(weightsFilePath, std::ios_base::binary);
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assert(file.good());
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std::string line;
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if (networkType.find("yolov2") != std::string::npos && networkType.find("yolov2-tiny") == std::string::npos) {
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// Remove 4 int32 bytes of data from the stream belonging to the header
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file.ignore(4 * 4);
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}
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else {
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// Remove 5 int32 bytes of data from the stream belonging to the header
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file.ignore(4 * 5);
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}
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char floatWeight[4];
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while (!file.eof()) {
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file.read(floatWeight, 4);
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assert(file.gcount() == 4);
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weights.push_back(*reinterpret_cast<float*>(floatWeight));
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if (file.peek() == std::istream::traits_type::eof())
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break;
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}
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}
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else if (weightsFilePath.find(".wts") != std::string::npos) {
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std::ifstream file(weightsFilePath);
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assert(file.good());
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int32_t count;
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file >> count;
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assert(count > 0 && "\nInvalid .wts file.");
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uint32_t floatWeight;
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std::string name;
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uint32_t size;
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while (count--) {
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file >> name >> std::dec >> size;
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for (uint32_t x = 0, y = size; x < y; ++x) {
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file >> std::hex >> floatWeight;
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weights.push_back(*reinterpret_cast<float*>(&floatWeight));
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};
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}
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}
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else {
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std::cerr << "\nFile " << weightsFilePath << " is not supported" << std::endl;
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assert(0);
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}
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std::cout << "Loading weights of " << networkType << " complete" << std::endl;
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std::cout << "Total weights read: " << weights.size() << std::endl;
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return weights;
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}
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std::string
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dimsToString(const nvinfer1::Dims d)
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{
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assert(d.nbDims >= 1);
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std::stringstream s;
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s << "[";
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for (int i = 0; i < d.nbDims - 1; ++i)
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s << d.d[i] << ", ";
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s << d.d[d.nbDims - 1] << "]";
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return s.str();
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}
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int
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getNumChannels(nvinfer1::ITensor* t)
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{
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nvinfer1::Dims d = t->getDimensions();
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assert(d.nbDims == 3);
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return d.d[0];
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}
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void
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printLayerInfo(std::string layerIndex, std::string layerName, std::string layerInput, std::string layerOutput,
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std::string weightPtr)
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{
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std::cout << std::setw(8) << std::left << layerIndex << std::setw(30) << std::left << layerName;
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std::cout << std::setw(20) << std::left << layerInput << std::setw(20) << std::left << layerOutput;
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std::cout << weightPtr << std::endl;
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}
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