51 lines
1.9 KiB
C++
51 lines
1.9 KiB
C++
#include "parseargs.hh"
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#include <boost/program_options.hpp>
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#include <cstdlib>
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#include <iostream>
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constexpr int DEFAULT_ITERATIONS = 5000;
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using path = std::filesystem::path;
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namespace po = boost::program_options;
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void processFilenames(po::variables_map const &vm, path const &t_input,
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path &t_output) {
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if (!vm.count("output")) {
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t_output.replace_filename("output_" +
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std::string{t_input.filename().string()});
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} else if (!t_output.has_extension()) {
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t_output.replace_extension(".png");
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}
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}
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[[nodiscard]] std::tuple<path, path, int, int, bool> parse_args(int t_ac,
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char **t_av) {
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po::options_description desc("Allowed options");
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desc.add_options()
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("help,h", "Display this help message")
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("input,i", po::value<path>(), "Input image")
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("output,o", po::value<path>(),
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"Image output path (default: input path + \"_output\")")
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("method,m", po::value<int>(), "Method number to be used (default: 1)")
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("iterations,n", po::value<int>(), "Number of iterations (default: 5000)")
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("verbose,v", "Enables verbosity");
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po::variables_map vm;
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po::store(po::parse_command_line(t_ac, t_av, desc), vm);
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po::notify(vm);
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if (vm.count("help") || !vm.count("input")) {
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std::cout << desc << "\n";
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std::exit(1);
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}
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auto const input_path = vm["input"].as<path>();
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auto output_path =
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vm.count("output") ? vm["output"].as<path>() : input_path.filename();
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processFilenames(vm, input_path, output_path);
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return std::make_tuple(input_path, output_path,
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vm.count("iterations") ? vm["iterations"].as<int>()
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: DEFAULT_ITERATIONS,
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vm.count("method") ? vm["method"].as<int>() : 1,
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vm.count("verbose") ? true : false);
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}
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