Qt: Fix passing command line options

CHANGES

@@ -66,6 +66,7 @@ Bugfixes:
  - GBA Cheats: Fix Pro Action Replay and GameShark issues when used together
  - Qt: Fix analog buttons not getting unmapped
  - GBA Video: Prevent tiles < 512 from being used in modes 3 - 5
+ - Qt: Fix passing command line options
 Misc:
  - Qt: Handle saving input settings better
  - Debugger: Free watchpoints in addition to breakpoints

src/platform/qt/ConfigController.cpp

@@ -115,8 +115,8 @@ ConfigController::ConfigController(QObject* parent)
 	m_opts.rewindBufferCapacity = 0;
 	m_opts.useBios = true;
 	m_opts.suspendScreensaver = true;
-	GBAConfigLoadDefaults(&m_config, &m_opts);
 	GBAConfigLoad(&m_config);
+	GBAConfigLoadDefaults(&m_config, &m_opts);
 	GBAConfigMap(&m_config, &m_opts);
 }
 
@@ -126,7 +126,11 @@ ConfigController::~ConfigController() {
 }
 
 bool ConfigController::parseArguments(GBAArguments* args, int argc, char* argv[]) {
-	return ::parseArguments(args, &m_config, argc, argv, 0);
+	if (::parseArguments(args, &m_config, argc, argv, 0)) {
+		GBAConfigMap(&m_config, &m_opts);
+		return true;
+	}
+	return false;
 }
 
 ConfigOption* ConfigController::addOption(const char* key) {

src/platform/qt/GBAApp.cpp

@@ -45,14 +45,21 @@ GBAApp::GBAApp(int& argc, char* argv[])
 		Display::setDriver(static_cast<Display::Driver>(m_configController.getQtOption("displayDriver").toInt()));
 	}
 
+	GBAArguments args;
+	bool loaded = m_configController.parseArguments(&args, argc, argv);
+	if (loaded && args.showHelp) {
+		usage(argv[0], 0);
+		::exit(0);
+		return;
+	}
+
 	Window* w = new Window(&m_configController);
 	connect(w, &Window::destroyed, [this]() {
 		m_windows[0] = nullptr;
 	});
 	m_windows[0] = w;
 
-	GBAArguments args;
-	if (m_configController.parseArguments(&args, argc, argv)) {
+	if (loaded) {
 		w->argumentsPassed(&args);
 	} else {
 		w->loadConfig();