decoder: add V_CMPX_U_F32 (#1120)

feat(decoder): add V_CMPX_U_F32

src/graphics/shader/recompiler/frontend/decode/ShaderDecoder.h

@@ -382,6 +382,7 @@ enum class Opcode {
 	V_CMPX_LG_F32,
 	V_CMPX_GE_F32,
 	V_CMPX_O_F32,
+	V_CMPX_U_F32,
 	V_CMPX_NGE_F32,
 	V_CMPX_NLG_F32,
 	V_CMPX_NGT_F32,

src/graphics/shader/recompiler/frontend/decode/VectorAluOps.cpp

@@ -232,7 +232,7 @@ constexpr VopcOpcodeInfo VOPC_OPCODE_LIST[] = {
     {0x11u, Opcode::V_CMPX_LT_F32},        {0x12u, Opcode::V_CMPX_EQ_F32},
     {0x13u, Opcode::V_CMPX_LE_F32},        {0x14u, Opcode::V_CMPX_GT_F32},
     {0x15u, Opcode::V_CMPX_LG_F32},        {0x16u, Opcode::V_CMPX_GE_F32},
-    {0x17u, Opcode::V_CMPX_O_F32},
+    {0x17u, Opcode::V_CMPX_O_F32},         {0x18u, Opcode::V_CMPX_U_F32},
     {0x19u, Opcode::V_CMPX_NGE_F32},       {0x1au, Opcode::V_CMPX_NLG_F32},
     {0x1bu, Opcode::V_CMPX_NGT_F32},       {0x1cu, Opcode::V_CMPX_NLE_F32},
     {0x1du, Opcode::V_CMPX_NEQ_F32},       {0x1eu, Opcode::V_CMPX_NLT_F32},
@@ -892,6 +892,7 @@ bool IsVopcFloatCompareOpcode(Opcode opcode) {
 		case Opcode::V_CMPX_LG_F32:
 		case Opcode::V_CMPX_GE_F32:
 		case Opcode::V_CMPX_O_F32:
+		case Opcode::V_CMPX_U_F32:
 		case Opcode::V_CMPX_NGE_F32:
 		case Opcode::V_CMPX_NLG_F32:
 		case Opcode::V_CMPX_NGT_F32:
@@ -1529,6 +1530,7 @@ bool IsVopcCompareExec(Opcode opcode) {
 		case Opcode::V_CMPX_LG_F32:
 		case Opcode::V_CMPX_GE_F32:
 		case Opcode::V_CMPX_O_F32:
+		case Opcode::V_CMPX_U_F32:
 		case Opcode::V_CMPX_NGE_F32:
 		case Opcode::V_CMPX_NLG_F32:
 		case Opcode::V_CMPX_NGT_F32:

src/graphics/shader/recompiler/frontend/translate/Vector.cpp

@@ -344,6 +344,7 @@ void Translator::EmitVector(const Decoder::Instruction& inst) {
 		case O::V_CMP_O_F32: EmitFloatOrderedCompare(inst, true, false); return;
 		case O::V_CMP_U_F32: EmitFloatOrderedCompare(inst, false, false); return;
 		case O::V_CMPX_O_F32: EmitFloatOrderedCompare(inst, true, true); return;
+		case O::V_CMPX_U_F32: EmitFloatOrderedCompare(inst, false, true); return;
 		case O::V_CMP_CLASS_F32: EmitFloatClassCompare(inst, false); return;
 		case O::V_CMPX_CLASS_F32: EmitFloatClassCompare(inst, true); return;
 		case O::V_CMPX_CLASS_F16: EmitFloatClassCompare(inst, true, true); return;

src/kernel/pthread.cpp

@@ -3200,6 +3200,11 @@ static void* RunThread(void* arg) {
 	os_thread_id = GetHostThreadId();
 #endif
 	thread->host_thread_id = os_thread_id;
+#if KYTY_PLATFORM == KYTY_PLATFORM_LINUX
+	if (!thread->name.empty()) {
+		pthread_setname_np(pthread_self(), thread->name.substr(0, 15).c_str());
+	}
+#endif
 
 	LOGF("\tPthread run begin: %s, id = %d, os_thread_id = %" PRIu64 ", entry = 0x%016" PRIx64
 	     ", arg = 0x%016" PRIx64 ", stack_addr = 0x%016" PRIx64 ", stack_size = %" PRIu64 "\n",

src/launcher/forms/configuration_edit_dialog.ui

@@ -6,7 +6,7 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>840</width>
+    <width>900</width>
     <height>620</height>
    </rect>
   </property>
@@ -400,6 +400,13 @@ To use your own sound, replace the emulator's assets/sounds/trophy-unlock.wav wi
        <property name="toolTip"><string>Restore default settings</string></property>
       </widget>
      </item>
+     <item>
+      <widget class="QPushButton" name="settings_button">
+       <property name="minimumSize"><size><width>80</width><height>25</height></size></property>
+       <property name="text"><string>Game Configs</string></property>
+       <property name="toolTip"><string>Import or export game configs</string></property>
+      </widget>
+     </item>
      <item>
       <spacer name="buttonSpacer">
        <property name="orientation"><enum>Qt::Horizontal</enum></property>

src/launcher/forms/configuration_list_widget.ui

@@ -125,7 +125,7 @@
             </size>
            </property>
            <property name="toolTip">
-            <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Edit configuration&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+            <string>Edit game config</string>
            </property>
            <property name="text">
             <string/>
@@ -150,7 +150,7 @@
             </size>
            </property>
            <property name="toolTip">
-            <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Delete configuration&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+            <string>Clear game config</string>
            </property>
            <property name="styleSheet">
             <string notr="true"/>

src/launcher/include/configuration.h

@@ -6,6 +6,7 @@
 #include <QByteArray>
 #include <QChar>
 #include <QColor>
+#include <QJsonObject>
 #include <QMetaEnum>
 #include <QMetaType>
 #include <QObject>
@@ -14,9 +15,6 @@
 #include <QStringList>
 #include <QVariant>
 
-#define KYTY_CFG_SET(n) s->setValue(#n, QVariant::fromValue(n).toString());
-#define KYTY_CFG_GET(n) n = s->value(#n).value<decltype(n)>();
-
 template <class T>
 inline QStringList EnumToList() {
 	QStringList ret;
@@ -126,7 +124,7 @@ public:
 	int                    vblank_frequency            = 60;
 	int                    console_language            = DEFAULT_CONSOLE_LANGUAGE;
 	bool                   vulkan_validation_enabled   = false;
-	bool                   shader_validation_enabled   = true;
+	bool                   shader_validation_enabled   = false;
 	ShaderOptimizationType shader_optimization_type    = ShaderOptimizationType::Performance;
 	LogDirection           shader_log_direction        = LogDirection::Silent;
 	QString                shader_log_folder           = "_Shaders";
@@ -188,90 +186,16 @@ public:
 		game_comment    = other.game_comment;
 	}
 
-	void WriteSettings(QSettings* s) const {
-		KYTY_CFG_SET(name);
-		KYTY_CFG_SET(basedir);
-		KYTY_CFG_SET(game_path);
-		KYTY_CFG_SET(custom_settings);
-		KYTY_CFG_SET(screen_resolution);
-		KYTY_CFG_SET(user_name);
-		KYTY_CFG_SET(user_id);
-		KYTY_CFG_SET(audio_input_device);
-		KYTY_CFG_SET(present_mode);
-		KYTY_CFG_SET(gpu_index);
-		KYTY_CFG_SET(fullscreen_enabled);
-		KYTY_CFG_SET(hide_cursor_enabled);
-		KYTY_CFG_SET(readback_linear_images);
-		KYTY_CFG_SET(tessellation_enabled);
-		KYTY_CFG_SET(trophy_enabled);
-		KYTY_CFG_SET(vblank_frequency);
-		KYTY_CFG_SET(console_language);
-		KYTY_CFG_SET(vulkan_validation_enabled);
-		KYTY_CFG_SET(shader_validation_enabled);
-		KYTY_CFG_SET(shader_optimization_type);
-		KYTY_CFG_SET(shader_log_direction);
-		KYTY_CFG_SET(shader_log_folder);
-		KYTY_CFG_SET(command_buffer_dump_enabled);
-		KYTY_CFG_SET(command_buffer_dump_folder);
-		KYTY_CFG_SET(printf_direction);
-		KYTY_CFG_SET(printf_output_file);
-		KYTY_CFG_SET(profiler_enabled);
-		KYTY_CFG_SET(renderdoc_enabled);
-		KYTY_CFG_SET(amd_cpu_enabled);
-#if defined(_WIN32)
-		KYTY_CFG_SET(red_zone_protection_enabled);
-#endif
-		s->setValue("host_input_mapping", host_input_mapping);
-		KYTY_CFG_SET(elf);
-	}
+	void WriteSettings(QSettings* s) const;
+	void ReadSettings(QSettings* s);
 
-	void ReadSettings(QSettings* s) {
-		KYTY_CFG_GET(name);
-		KYTY_CFG_GET(basedir);
-		KYTY_CFG_GET(game_path);
-		KYTY_CFG_GET(custom_settings);
-		KYTY_CFG_GET(screen_resolution);
-		user_name          = s->value("user_name", user_name).toString();
-		bool user_id_ok    = false;
-		auto saved_user_id = s->value("user_id", user_id).toInt(&user_id_ok);
-		user_id            = user_id_ok && Config::IsConfiguredUserIdValid(saved_user_id)
-		                         ? saved_user_id
-		                         : Config::DEFAULT_USER_ID;
-		audio_input_device = s->value("audio_input_device", audio_input_device).toString();
-		KYTY_CFG_GET(present_mode);
-		gpu_index = s->value("gpu_index", -1).toInt();
-		if (EnumToText(present_mode).isEmpty()) {
-			present_mode = PresentMode::Mailbox;
-		}
-		KYTY_CFG_GET(fullscreen_enabled);
-		KYTY_CFG_GET(hide_cursor_enabled);
-		KYTY_CFG_GET(readback_linear_images);
-		KYTY_CFG_GET(tessellation_enabled);
-		trophy_enabled = s->value("trophy_enabled", trophy_enabled).toBool();
-		vblank_frequency = s->value("vblank_frequency", vblank_frequency).toInt();
-		console_language = s->value("console_language", console_language).toInt();
-		if (console_language < 0 || console_language > MAX_CONSOLE_LANGUAGE) {
-			console_language = DEFAULT_CONSOLE_LANGUAGE;
-		}
-		KYTY_CFG_GET(vulkan_validation_enabled);
-		KYTY_CFG_GET(shader_validation_enabled);
-		KYTY_CFG_GET(shader_optimization_type);
-		KYTY_CFG_GET(shader_log_direction);
-		KYTY_CFG_GET(shader_log_folder);
-		KYTY_CFG_GET(command_buffer_dump_enabled);
-		KYTY_CFG_GET(command_buffer_dump_folder);
-		KYTY_CFG_GET(printf_direction);
-		KYTY_CFG_GET(printf_output_file);
-		KYTY_CFG_GET(profiler_enabled);
-		KYTY_CFG_GET(renderdoc_enabled);
-		amd_cpu_enabled = s->value("amd_cpu_enabled", false).toBool();
-#if defined(_WIN32)
-		red_zone_protection_enabled =
-		    s->value("red_zone_protection_enabled", red_zone_protection_enabled).toBool();
-#endif
-		host_input_mapping = s->value("host_input_mapping", host_input_mapping).toStringList();
-		elf                = s->value("elf", elf).toString();
-	}
+	[[nodiscard]] QVariantMap GameSettings() const;
+	// Call on a temporary configuration: validation can fail after loading values.
+	bool SetGameSettings(const QJsonObject& settings, QString& error);
+
+private:
+	template <class Settings>
+	void ReadGameSettingsValues(const Settings& s);
 };
 
 Q_DECLARE_METATYPE(Configuration*)

src/launcher/include/configurationEditDialog.h

@@ -33,6 +33,8 @@ public:
 
 signals:
 	void PreviewControllerColor(const QString& color);
+	void ImportGameSettings();
+	void ExportGameSettings();
 
 private:
 	Ui::ConfigurationEditDialog* m_ui = nullptr;

src/launcher/include/configurationListWidget.h

@@ -74,6 +74,8 @@ private:
 	void               SelectItem(QTreeWidgetItem* witem);
 	void               ApplyCompatibility();
 	void               UpdateToolbarIcons();
+	void               ImportGameSettings(QWidget* parent);
+	void               ExportGameSettings(QWidget* parent) const;
 	[[nodiscard]] bool HasValidGameDirectory() const;
 
 	ConfigurationItem*            m_selected_item = nullptr;

src/launcher/src/configuration.cpp

@@ -0,0 +1,145 @@
+#include "configuration.h"
+
+QVariantMap Configuration::GameSettings() const {
+	QVariantMap values;
+#define KYTY_CFG_SET(n) values.insert(QStringLiteral(#n), QVariant::fromValue(n).toString())
+	KYTY_CFG_SET(screen_resolution);
+	KYTY_CFG_SET(user_name);
+	KYTY_CFG_SET(user_id);
+	KYTY_CFG_SET(audio_input_device);
+	KYTY_CFG_SET(present_mode);
+	KYTY_CFG_SET(gpu_index);
+	KYTY_CFG_SET(fullscreen_enabled);
+	KYTY_CFG_SET(hide_cursor_enabled);
+	KYTY_CFG_SET(readback_linear_images);
+	KYTY_CFG_SET(tessellation_enabled);
+	KYTY_CFG_SET(trophy_enabled);
+	KYTY_CFG_SET(vblank_frequency);
+	KYTY_CFG_SET(console_language);
+	KYTY_CFG_SET(vulkan_validation_enabled);
+	KYTY_CFG_SET(shader_validation_enabled);
+	KYTY_CFG_SET(shader_optimization_type);
+	KYTY_CFG_SET(shader_log_direction);
+	KYTY_CFG_SET(shader_log_folder);
+	KYTY_CFG_SET(command_buffer_dump_enabled);
+	KYTY_CFG_SET(command_buffer_dump_folder);
+	KYTY_CFG_SET(printf_direction);
+	KYTY_CFG_SET(printf_output_file);
+	KYTY_CFG_SET(profiler_enabled);
+	KYTY_CFG_SET(renderdoc_enabled);
+	KYTY_CFG_SET(amd_cpu_enabled);
+#if defined(_WIN32)
+	KYTY_CFG_SET(red_zone_protection_enabled);
+#endif
+	KYTY_CFG_SET(elf);
+#undef KYTY_CFG_SET
+	return values;
+}
+
+template <class Settings>
+void Configuration::ReadGameSettingsValues(const Settings& s) {
+#define KYTY_CFG_GET(n) n = s.value(QStringLiteral(#n)).template value<decltype(n)>()
+	KYTY_CFG_GET(screen_resolution);
+	user_name          = s.value("user_name", user_name).toString();
+	bool user_id_ok    = false;
+	auto saved_user_id = s.value("user_id", user_id).toInt(&user_id_ok);
+	user_id            = user_id_ok && Config::IsConfiguredUserIdValid(saved_user_id)
+	                         ? saved_user_id
+	                         : Config::DEFAULT_USER_ID;
+	audio_input_device = s.value("audio_input_device", audio_input_device).toString();
+	KYTY_CFG_GET(present_mode);
+	gpu_index = s.value("gpu_index", -1).toInt();
+	if (EnumToText(present_mode).isEmpty()) {
+		present_mode = PresentMode::Mailbox;
+	}
+	KYTY_CFG_GET(fullscreen_enabled);
+	KYTY_CFG_GET(hide_cursor_enabled);
+	KYTY_CFG_GET(readback_linear_images);
+	KYTY_CFG_GET(tessellation_enabled);
+	trophy_enabled   = s.value("trophy_enabled", trophy_enabled).toBool();
+	vblank_frequency = s.value("vblank_frequency", vblank_frequency).toInt();
+	console_language = s.value("console_language", console_language).toInt();
+	if (console_language < 0 || console_language > MAX_CONSOLE_LANGUAGE) {
+		console_language = DEFAULT_CONSOLE_LANGUAGE;
+	}
+	KYTY_CFG_GET(vulkan_validation_enabled);
+	KYTY_CFG_GET(shader_validation_enabled);
+	KYTY_CFG_GET(shader_optimization_type);
+	KYTY_CFG_GET(shader_log_direction);
+	KYTY_CFG_GET(shader_log_folder);
+	KYTY_CFG_GET(command_buffer_dump_enabled);
+	KYTY_CFG_GET(command_buffer_dump_folder);
+	KYTY_CFG_GET(printf_direction);
+	KYTY_CFG_GET(printf_output_file);
+	KYTY_CFG_GET(profiler_enabled);
+	KYTY_CFG_GET(renderdoc_enabled);
+	amd_cpu_enabled = s.value("amd_cpu_enabled", false).toBool();
+#if defined(_WIN32)
+	red_zone_protection_enabled =
+	    s.value("red_zone_protection_enabled", red_zone_protection_enabled).toBool();
+#endif
+	elf = s.value("elf", elf).toString();
+#undef KYTY_CFG_GET
+}
+
+void Configuration::WriteSettings(QSettings* s) const {
+	const auto values = GameSettings();
+	for (auto it = values.constBegin(); it != values.constEnd(); ++it) {
+		s->setValue(it.key(), it.value());
+	}
+	s->setValue("name", name);
+	s->setValue("basedir", basedir);
+	s->setValue("game_path", game_path);
+	s->setValue("custom_settings", QVariant::fromValue(custom_settings).toString());
+	s->setValue("host_input_mapping", host_input_mapping);
+}
+
+void Configuration::ReadSettings(QSettings* s) {
+	ReadGameSettingsValues(*s);
+	name               = s->value("name").toString();
+	basedir            = s->value("basedir").toString();
+	game_path          = s->value("game_path").toString();
+	custom_settings    = s->value("custom_settings").toBool();
+	host_input_mapping = s->value("host_input_mapping", host_input_mapping).toStringList();
+}
+
+bool Configuration::SetGameSettings(const QJsonObject& settings, QString& error) {
+	const auto fail = [&error](const QString& message) {
+		error = message;
+		return false;
+	};
+	auto values = GameSettings();
+	for (auto it = settings.constBegin(); it != settings.constEnd(); ++it) {
+		if (!values.contains(it.key())) {
+			return fail(tr("Unknown game setting: %1").arg(it.key()));
+		}
+		if (!it.value().isString()) {
+			return fail(tr("Game setting %1 must be a string.").arg(it.key()));
+		}
+		values.insert(it.key(), it.value().toString());
+	}
+
+	ReadGameSettingsValues(values);
+	const auto canonical = GameSettings();
+	for (auto it = settings.constBegin(); it != settings.constEnd(); ++it) {
+		if (canonical.value(it.key()) != values.value(it.key())) {
+			return fail(tr("Invalid value for game setting: %1").arg(it.key()));
+		}
+	}
+	if (user_name.trimmed().isEmpty() || user_name.toUtf8().size() > Config::MAX_USER_NAME_LENGTH) {
+		return fail(tr("User name must contain 1-16 UTF-8 bytes."));
+	}
+	if (gpu_index < -1) {
+		return fail(tr("GPU index must be -1 or greater."));
+	}
+	if (vblank_frequency < 30 || vblank_frequency > 360) {
+		return fail(tr("Vblank frequency must be between 30 and 360."));
+	}
+	if ((shader_log_direction == LogDirection::File && shader_log_folder.isEmpty()) ||
+	    (printf_direction == LogDirection::File && printf_output_file.isEmpty()) ||
+	    (command_buffer_dump_enabled && command_buffer_dump_folder.isEmpty())) {
+		return fail(tr("Enabled logging and command buffer dumps require an output path."));
+	}
+
+	return true;
+}

src/launcher/src/configurationEditDialog.cpp

@@ -19,6 +19,7 @@
 #include <QLineEdit>
 #include <QListView>
 #include <QListWidget>
+#include <QMenu>
 #include <QMessageBox>
 #include <QPushButton>
 #include <QResizeEvent>
@@ -126,6 +127,7 @@ ConfigurationEditDialog::ConfigurationEditDialog(Configuration& info, QWidget* p
 	setMinimumWidth(width());
 	InitGameDirectories();
 	m_ui->controller_group->setVisible(false);
+	m_ui->settings_button->setVisible(false);
 
 	connect(m_ui->ok_button, &QPushButton::clicked, this, &ConfigurationEditDialog::save);
 	connect(m_ui->cancel_button, &QPushButton::clicked, this, &QDialog::reject);
@@ -354,6 +356,11 @@ void ConfigurationEditDialog::InitGameDirectories() {
 
 void ConfigurationEditDialog::SetGlobalSettings(const QStringList& dirs) {
 	m_global_settings = true;
+	auto* menu        = new QMenu(m_ui->settings_button);
+	menu->addAction(tr("Import..."), this, &ConfigurationEditDialog::ImportGameSettings);
+	menu->addAction(tr("Export..."), this, &ConfigurationEditDialog::ExportGameSettings);
+	m_ui->settings_button->setMenu(menu);
+	m_ui->settings_button->setVisible(true);
 	m_game_dirs_list->clear();
 	m_game_dirs_group->setMinimumWidth(GLOBAL_SETTINGS_GAME_DIRS_MIN_WIDTH);
 

src/launcher/src/configurationListWidget.cpp

@@ -24,9 +24,11 @@
 #include <QDialog>
 #include <QDir>
 #include <QFile>
+#include <QFileDialog>
 #include <QFileInfo>
 #include <QHeaderView>
 #include <QIcon>
+#include <QInputDialog>
 #include <QJsonDocument>
 #include <QJsonObject>
 #include <QJsonParseError>
@@ -40,6 +42,7 @@
 #include <QProcess>
 #include <QPushButton>
 #include <QRegularExpression>
+#include <QSaveFile>
 #include <QSet>
 #include <QSettings>
 #include <QSignalBlocker>
@@ -765,7 +768,7 @@ void ConfigurationListWidget::edit_configuration() {
 
 	auto                    info = CreateConfiguration(*item);
 	ConfigurationEditDialog dlg(*info, this);
-	dlg.setWindowTitle(tr("Edit game settings"));
+	dlg.setWindowTitle(tr("Edit game config"));
 	connect(&dlg, &ConfigurationEditDialog::PreviewControllerColor, this,
 	        &ConfigurationListWidget::PreviewControllerColor);
 
@@ -789,8 +792,8 @@ void ConfigurationListWidget::delete_configuartion() {
 		return;
 	}
 
-	if (QMessageBox::Yes == QMessageBox::question(this, tr("Clear custom settings"),
-	                                              tr("Do you want to clear custom settings?"))) {
+	if (QMessageBox::Yes == QMessageBox::question(this, tr("Clear game config"),
+	                                              tr("Clear this game's config and use global settings?"))) {
 		delete m_custom_infos.take(item->GetInfo().game_path);
 		item->GetInfo().custom_settings = false;
 		WriteSettings();
@@ -810,6 +813,10 @@ void ConfigurationListWidget::edit_global_settings() {
 	dlg.SetGlobalSettings(m_game_dirs);
 	connect(&dlg, &ConfigurationEditDialog::PreviewControllerColor, this,
 	        &ConfigurationListWidget::PreviewControllerColor);
+	connect(&dlg, &ConfigurationEditDialog::ImportGameSettings, this,
+	        [this, &dlg]() { ImportGameSettings(&dlg); });
+	connect(&dlg, &ConfigurationEditDialog::ExportGameSettings, this,
+	        [this, &dlg]() { ExportGameSettings(&dlg); });
 
 	if (dlg.exec() == QDialog::Accepted) {
 		m_global_info.CopyEmulatorSettingsFrom(info);
@@ -822,7 +829,133 @@ void ConfigurationListWidget::edit_global_settings() {
 			ScanGameDirectory();
 		}
 	}
-	emit Select();
+	SelectItem(m_ui->cfgs_list->currentItem());
+}
+
+static bool IsGameSettingsTitleId(const QString& title_id) {
+	static const QRegularExpression pattern(QStringLiteral("\\APPSA[0-9]{5}\\z"));
+	return pattern.match(title_id).hasMatch();
+}
+
+void ConfigurationListWidget::ImportGameSettings(QWidget* parent) {
+	const auto path = QFileDialog::getOpenFileName(parent, tr("Import game configs"), {},
+	                                               tr("JSON files (*.json)"));
+	if (path.isEmpty()) {
+		return;
+	}
+	QFile file(path);
+	if (!file.open(QIODevice::ReadOnly)) {
+		QMessageBox::warning(parent, tr("Import failed"), file.errorString());
+		return;
+	}
+	const auto document = QJsonDocument::fromJson(file.readAll());
+	if (!document.isObject() || document.object().isEmpty()) {
+		QMessageBox::warning(
+		    parent, tr("Import failed"),
+		    tr("Expected a JSON object containing game configs keyed by PPSA code."));
+		return;
+	}
+	const auto settings = document.object();
+	for (auto it = settings.constBegin(); it != settings.constEnd(); ++it) {
+		Configuration info;
+		QString       error;
+		if (!IsGameSettingsTitleId(it.key()) || !it.value().isObject() ||
+		    it.value().toObject().isEmpty() ||
+		    !info.SetGameSettings(it.value().toObject(), error)) {
+			QMessageBox::warning(parent, tr("Import failed"),
+			                     tr("Invalid game config for %1. %2").arg(it.key(), error));
+			return;
+		}
+	}
+	struct ImportedGame {
+		ConfigurationItem*             item;
+		std::unique_ptr<Configuration> info;
+	};
+	std::vector<ImportedGame> imported;
+	auto                      unmatched = settings.keys();
+	for (int index = 0; index < m_ui->cfgs_list->topLevelItemCount(); ++index) {
+		auto*      item     = static_cast<ConfigurationItem*>(m_ui->cfgs_list->topLevelItem(index));
+		const auto title_id = item->GetInfo().title_id.trimmed().toUpper();
+		if (!settings.contains(title_id)) {
+			continue;
+		}
+		auto    info = CreateConfiguration(*item);
+		QString error;
+		if (!info->SetGameSettings(settings.value(title_id).toObject(), error)) {
+			QMessageBox::warning(parent, tr("Import failed"),
+			                     tr("Invalid game config for %1. %2").arg(title_id, error));
+			return;
+		}
+		info->custom_settings = true;
+		imported.push_back({item, std::move(info)});
+		unmatched.removeAll(title_id);
+	}
+	auto message = imported.empty() ? tr("No matching games found in the library.")
+	                                : tr("Configs will be updated for the following games:\n");
+	for (const auto& game: imported) {
+		message += tr("\n%1 — %2").arg(game.info->title_id.trimmed().toUpper(), game.info->name);
+	}
+	if (!unmatched.isEmpty()) {
+		message += tr("\nGames not found: %1").arg(unmatched.join(QStringLiteral(", ")));
+	}
+	if (imported.empty()) {
+		QMessageBox::information(parent, tr("Import game configs"), message);
+		return;
+	}
+	QMessageBox confirmation(QMessageBox::Question, tr("Import game configs"), message,
+	                         QMessageBox::Apply | QMessageBox::Cancel, parent);
+	confirmation.setTextFormat(Qt::PlainText);
+	confirmation.setDefaultButton(QMessageBox::Cancel);
+	if (confirmation.exec() != QMessageBox::Apply) {
+		return;
+	}
+	for (auto& [item, info]: imported) {
+		const auto game_path = info->game_path;
+		delete m_custom_infos.take(game_path);
+		m_custom_infos.insert(game_path, info.release());
+		item->GetInfo().custom_settings = true;
+		item->Update();
+	}
+	WriteSettings();
+}
+
+void ConfigurationListWidget::ExportGameSettings(QWidget* parent) const {
+	QMap<QString, const ConfigurationItem*> games;
+	for (int index = 0; index < m_ui->cfgs_list->topLevelItemCount(); ++index) {
+		const auto* item = static_cast<ConfigurationItem*>(m_ui->cfgs_list->topLevelItem(index));
+		const auto& game = item->GetInfo();
+		const auto  title_id = game.title_id.trimmed().toUpper();
+		if (m_custom_infos.contains(game.game_path) && IsGameSettingsTitleId(title_id)) {
+			games.insert(tr("%1 — %2 (%3)").arg(title_id, game.name, game.game_path), item);
+		}
+	}
+	if (games.isEmpty()) {
+		QMessageBox::information(parent, tr("Export game config"),
+		                         tr("No game configs with a PPSA code were found."));
+		return;
+	}
+	bool       accepted = false;
+	const auto selected = QInputDialog::getItem(parent, tr("Export game config"), tr("Game:"),
+	                                            games.keys(), 0, false, &accepted);
+	if (!accepted) {
+		return;
+	}
+	const auto& game     = games.value(selected)->GetInfo();
+	const auto  title_id = game.title_id.trimmed().toUpper();
+	const auto  path =
+	    QFileDialog::getSaveFileName(parent, tr("Export game config"),
+	                                 title_id + QStringLiteral(".json"), tr("JSON files (*.json)"));
+	if (path.isEmpty()) {
+		return;
+	}
+	const auto settings =
+	    QJsonObject::fromVariantMap(m_custom_infos.value(game.game_path)->GameSettings());
+	const auto data =
+	    QJsonDocument(QJsonObject {{title_id, settings}}).toJson(QJsonDocument::Indented);
+	QSaveFile file(path);
+	if (!file.open(QIODevice::WriteOnly) || file.write(data) != data.size() || !file.commit()) {
+		QMessageBox::warning(parent, tr("Export failed"), file.errorString());
+	}
 }
 
 void ConfigurationListWidget::edit_input_mapping() {
@@ -1040,11 +1173,11 @@ void ConfigurationListWidget::show_context_menu(const QPoint& pos) {
 	                   tr("Remove save data..."), this, SLOT(remove_save_data()));
 	menu.addSeparator();
 	QAction* action_edit =
-	    menu.addAction(style()->standardIcon(QStyle::SP_FileIcon), tr("Edit game settings..."),
+	    menu.addAction(style()->standardIcon(QStyle::SP_FileIcon), tr("Edit game config..."),
 	                   this, SLOT(edit_configuration()));
 	QAction* action_delete =
 	    menu.addAction(style()->standardIcon(QStyle::SP_DialogDiscardButton),
-	                   tr("Clear custom settings"), this, SLOT(delete_configuartion()));
+	                   tr("Clear game config"), this, SLOT(delete_configuartion()));
 
 	if (item == nullptr) {
 		menu.addSeparator();