Stub program that can display a jpg passed through cli

links.txt

@@ -0,0 +1,9 @@
+https://www.mtgsalvation.com/forums/magic-fundamentals/other-magic-products/third-party-products/337224-mtg-gatherer-extractor-v7-0-database-pics
+
+https://github.com/devonmurphy/GathererImageGatherer
+
+https://mtgjson.com/
+
+https://gatherer.wizards.com/Pages/Default.aspx
+
+https://www.youtube.com/watch?v=kbYDjBa3Lyk

src/flann_maker/config.h.in

@@ -0,0 +1,3 @@
+#pragma once
+
+#define PROGRAM_NAME "@PROGRAM_NAME@"

src/flann_maker/main.cpp

@@ -0,0 +1,38 @@
+#include "config.h"
+#include <opencv2/flann.hpp>
+#include <opencv2/imgcodecs.hpp>
+#include <opencv2/highgui.hpp>
+#include <iostream>
+#include <stdexcept>
+#include <string>
+
+namespace mgs {
+} //namespace mgs
+
+int main (int argc, char* argv[]) {
+	using std::string;
+	using std::runtime_error;
+
+	if (2 != argc) {
+		std::cerr << "Wrong argument count " << argc - 1 << '\n';
+		return 2;
+	}
+
+	try {
+		cv::Mat image = cv::imread(argv[1]);
+		if (image.empty())
+			throw runtime_error(string("Unable to load image \"") + argv[1] + "\"");
+
+		cv::String win_name{PROGRAM_NAME};
+		cv::namedWindow(win_name);
+		cv::imshow(win_name, image);
+		cv::waitKey(0);
+		cv::destroyWindow(win_name);
+	}
+	catch (const runtime_error& err) {
+		std::cerr << "Unhandled exception: " << err.what() << '\n';
+		return 1;
+	}
+
+	return 0;
+}

src/flann_maker/meson.build

@@ -0,0 +1,15 @@
+project_name = fs.name(meson.current_source_dir())
+
+libopencv_dep = dependency('opencv4')
+
+conf = configuration_data()
+conf.set('PROGRAM_NAME', project_name)
+config_file = configure_file(input: 'config.h.in', output: 'config.h', configuration: conf)
+
+executable(project_name,
+  'main.cpp',
+  dependencies: [
+	libopencv_dep,
+  ],
+  install: true,
+)

src/meson.build

@@ -1 +1,2 @@
 subdir('recognition')
+subdir('flann_maker')

src/recognition/meson.build

@@ -20,4 +20,3 @@ executable(project_name,
   ],
   install: true,
 )
-