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path: root/Ryujinx/Program.cs
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using Gtk;
using Ryujinx.Common;
using Ryujinx.Common.Configuration;
using Ryujinx.Common.GraphicsDriver;
using Ryujinx.Common.Logging;
using Ryujinx.Common.SystemInfo;
using Ryujinx.Common.SystemInterop;
using Ryujinx.Modules;
using Ryujinx.SDL2.Common;
using Ryujinx.Ui;
using Ryujinx.Ui.Common;
using Ryujinx.Ui.Common.Configuration;
using Ryujinx.Ui.Common.Helper;
using Ryujinx.Ui.Widgets;
using SixLabors.ImageSharp.Formats.Jpeg;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Runtime.InteropServices;
using System.Runtime.Versioning;
using System.Threading.Tasks;

namespace Ryujinx
{
    partial class Program
    {
        public static double WindowScaleFactor { get; private set; }

        public static string Version { get; private set; }

        public static string ConfigurationPath { get; set; }

        public static string CommandLineProfile { get; set; }

        private const string X11LibraryName = "libX11";

        [LibraryImport(X11LibraryName)]
        private static partial int XInitThreads();

        [LibraryImport("user32.dll", SetLastError = true)]
        public static partial int MessageBoxA(IntPtr hWnd, [MarshalAs(UnmanagedType.LPStr)] string text, [MarshalAs(UnmanagedType.LPStr)] string caption, uint type);

        [LibraryImport("libc", SetLastError = true)]
        private static partial int setenv([MarshalAs(UnmanagedType.LPStr)] string name, [MarshalAs(UnmanagedType.LPStr)] string value, int overwrite);

        [LibraryImport("libc")]
        private static partial IntPtr getenv([MarshalAs(UnmanagedType.LPStr)] string name);

        private const uint MB_ICONWARNING = 0x30;

        static Program()
        {
            if (OperatingSystem.IsLinux())
            {
                NativeLibrary.SetDllImportResolver(typeof(Program).Assembly, (name, assembly, path) =>
                {
                    if (name != X11LibraryName)
                    {
                        return IntPtr.Zero;
                    }

                    if (!NativeLibrary.TryLoad("libX11.so.6", assembly, path, out IntPtr result))
                    {
                        if (!NativeLibrary.TryLoad("libX11.so", assembly, path, out result))
                        {
                            return IntPtr.Zero;
                        }
                    }

                    return result;
                });
            }
        }

        [SupportedOSPlatform("linux")]
        static void RegisterMimeTypes()
        {
            if (ReleaseInformation.IsFlatHubBuild())
            {
                return;
            }

            string mimeDbPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.UserProfile), ".local", "share", "mime");

            if (!File.Exists(Path.Combine(mimeDbPath, "packages", "Ryujinx.xml")))
            {
                string mimeTypesFile = Path.Combine(ReleaseInformation.GetBaseApplicationDirectory(), "mime", "Ryujinx.xml");
                using Process mimeProcess = new();

                mimeProcess.StartInfo.FileName = "xdg-mime";
                mimeProcess.StartInfo.Arguments = $"install --novendor --mode user {mimeTypesFile}";

                mimeProcess.Start();
                mimeProcess.WaitForExit();

                if (mimeProcess.ExitCode != 0)
                {
                    Logger.Error?.PrintMsg(LogClass.Application, $"Unable to install mime types. Make sure xdg-utils is installed. Process exited with code: {mimeProcess.ExitCode}");
                    return;
                }

                using Process updateMimeProcess = new();

                updateMimeProcess.StartInfo.FileName = "update-mime-database";
                updateMimeProcess.StartInfo.Arguments = mimeDbPath;

                updateMimeProcess.Start();
                updateMimeProcess.WaitForExit();

                if (updateMimeProcess.ExitCode != 0)
                {
                    Logger.Error?.PrintMsg(LogClass.Application, $"Could not update local mime database. Process exited with code: {updateMimeProcess.ExitCode}");
                }
            }
        }

        static void Main(string[] args)
        {
            Version = ReleaseInformation.GetVersion();

            if (OperatingSystem.IsWindows() && !OperatingSystem.IsWindowsVersionAtLeast(10, 0, 17134))
            {
                MessageBoxA(IntPtr.Zero, "You are running an outdated version of Windows.\n\nStarting on June 1st 2022, Ryujinx will only support Windows 10 1803 and newer.\n", $"Ryujinx {Version}", MB_ICONWARNING);
            }

            // Parse arguments
            CommandLineState.ParseArguments(args);

            // Hook unhandled exception and process exit events.
            GLib.ExceptionManager.UnhandledException   += (GLib.UnhandledExceptionArgs e)                => ProcessUnhandledException(e.ExceptionObject as Exception, e.IsTerminating);
            AppDomain.CurrentDomain.UnhandledException += (object sender, UnhandledExceptionEventArgs e) => ProcessUnhandledException(e.ExceptionObject as Exception, e.IsTerminating);
            AppDomain.CurrentDomain.ProcessExit        += (object sender, EventArgs e)                   => Exit();

            // Make process DPI aware for proper window sizing on high-res screens.
            ForceDpiAware.Windows();
            WindowScaleFactor = ForceDpiAware.GetWindowScaleFactor();

            // Delete backup files after updating.
            Task.Run(Updater.CleanupUpdate);

            // NOTE: GTK3 doesn't init X11 in a multi threaded way.
            // This ends up causing race condition and abort of XCB when a context is created by SPB (even if SPB do call XInitThreads).
            if (OperatingSystem.IsLinux())
            {
                XInitThreads();
                Environment.SetEnvironmentVariable("GDK_BACKEND", "x11");
                setenv("GDK_BACKEND", "x11", 1);
            }

            if (OperatingSystem.IsMacOS())
            {
                string baseDirectory = Path.GetDirectoryName(AppDomain.CurrentDomain.BaseDirectory);
                string resourcesDataDir;

                if (Path.GetFileName(baseDirectory) == "MacOS")
                {
                    resourcesDataDir = Path.Combine(Directory.GetParent(baseDirectory).FullName, "Resources");
                }
                else
                {
                    resourcesDataDir = baseDirectory;
                }

                void SetEnvironmentVariableNoCaching(string key, string value)
                {
                    int res = setenv(key, value, 1);
                    Debug.Assert(res != -1);
                }

                // On macOS, GTK3 needs XDG_DATA_DIRS to be set, otherwise it will try searching for "gschemas.compiled" in system directories.
                SetEnvironmentVariableNoCaching("XDG_DATA_DIRS", Path.Combine(resourcesDataDir, "share"));

                // On macOS, GTK3 needs GDK_PIXBUF_MODULE_FILE to be set, otherwise it will try searching for "loaders.cache" in system directories.
                SetEnvironmentVariableNoCaching("GDK_PIXBUF_MODULE_FILE", Path.Combine(resourcesDataDir, "lib", "gdk-pixbuf-2.0", "2.10.0", "loaders.cache"));

                SetEnvironmentVariableNoCaching("GTK_IM_MODULE_FILE", Path.Combine(resourcesDataDir, "lib", "gtk-3.0", "3.0.0", "immodules.cache"));
            }

            string systemPath = Environment.GetEnvironmentVariable("Path", EnvironmentVariableTarget.Machine);
            Environment.SetEnvironmentVariable("Path", $"{Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "bin")};{systemPath}");

            // Setup base data directory.
            AppDataManager.Initialize(CommandLineState.BaseDirPathArg);

            // Initialize the configuration.
            ConfigurationState.Initialize();

            // Initialize the logger system.
            LoggerModule.Initialize();

            // Register mime types on linux.
            if (OperatingSystem.IsLinux())
            {
                RegisterMimeTypes();
            }

            // Initialize Discord integration.
            DiscordIntegrationModule.Initialize();

            // Initialize SDL2 driver
            SDL2Driver.MainThreadDispatcher = action =>
            {
                Application.Invoke(delegate
                {
                    action();
                });
            };

            // Sets ImageSharp Jpeg Encoder Quality.
            SixLabors.ImageSharp.Configuration.Default.ImageFormatsManager.SetEncoder(JpegFormat.Instance, new JpegEncoder()
            {
                Quality = 100
            });

            string localConfigurationPath   = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Config.json");
            string appDataConfigurationPath = Path.Combine(AppDataManager.BaseDirPath,            "Config.json");

            // Now load the configuration as the other subsystems are now registered
            ConfigurationPath = File.Exists(localConfigurationPath)
                ? localConfigurationPath
                : File.Exists(appDataConfigurationPath)
                    ? appDataConfigurationPath
                    : null;

            bool showVulkanPrompt = false;

            if (ConfigurationPath == null)
            {
                // No configuration, we load the default values and save it to disk
                ConfigurationPath = appDataConfigurationPath;

                ConfigurationState.Instance.LoadDefault();
                ConfigurationState.Instance.ToFileFormat().SaveConfig(ConfigurationPath);

                showVulkanPrompt = true;
            }
            else
            {
                if (ConfigurationFileFormat.TryLoad(ConfigurationPath, out ConfigurationFileFormat configurationFileFormat))
                {
                    ConfigurationLoadResult result = ConfigurationState.Instance.Load(configurationFileFormat, ConfigurationPath);

                    if ((result & ConfigurationLoadResult.MigratedFromPreVulkan) != 0)
                    {
                        showVulkanPrompt = true;
                    }
                }
                else
                {
                    ConfigurationState.Instance.LoadDefault();

                    showVulkanPrompt = true;

                    Logger.Warning?.PrintMsg(LogClass.Application, $"Failed to load config! Loading the default config instead.\nFailed config location {ConfigurationPath}");
                }
            }

            // Check if graphics backend was overridden
            if (CommandLineState.OverrideGraphicsBackend != null)
            {
                if (CommandLineState.OverrideGraphicsBackend.ToLower() == "opengl")
                {
                    ConfigurationState.Instance.Graphics.GraphicsBackend.Value = GraphicsBackend.OpenGl;
                    showVulkanPrompt = false;
                }
                else if (CommandLineState.OverrideGraphicsBackend.ToLower() == "vulkan")
                {
                    ConfigurationState.Instance.Graphics.GraphicsBackend.Value = GraphicsBackend.Vulkan;
                    showVulkanPrompt = false;
                }
            }

            // Check if docked mode was overriden.
            if (CommandLineState.OverrideDockedMode.HasValue)
            {
                ConfigurationState.Instance.System.EnableDockedMode.Value = CommandLineState.OverrideDockedMode.Value;
            }

            // Logging system information.
            PrintSystemInfo();

            // Enable OGL multithreading on the driver, when available.
            BackendThreading threadingMode = ConfigurationState.Instance.Graphics.BackendThreading;
            DriverUtilities.ToggleOGLThreading(threadingMode == BackendThreading.Off);

            // Initialize Gtk.
            Application.Init();

            // Check if keys exists.
            bool hasSystemProdKeys = File.Exists(Path.Combine(AppDataManager.KeysDirPath, "prod.keys"));
            bool hasCommonProdKeys = AppDataManager.Mode == AppDataManager.LaunchMode.UserProfile && File.Exists(Path.Combine(AppDataManager.KeysDirPathUser, "prod.keys"));
            if (!hasSystemProdKeys && !hasCommonProdKeys)
            {
                UserErrorDialog.CreateUserErrorDialog(UserError.NoKeys);
            }

            // Show the main window UI.
            MainWindow mainWindow = new MainWindow();
            mainWindow.Show();

            if (CommandLineState.LaunchPathArg != null)
            {
                mainWindow.LoadApplication(CommandLineState.LaunchPathArg, CommandLineState.StartFullscreenArg);
            }

            if (ConfigurationState.Instance.CheckUpdatesOnStart.Value && Updater.CanUpdate(false))
            {
                Updater.BeginParse(mainWindow, false).ContinueWith(task =>
                {
                    Logger.Error?.Print(LogClass.Application, $"Updater Error: {task.Exception}");
                }, TaskContinuationOptions.OnlyOnFaulted);
            }

            if (showVulkanPrompt)
            {
                var buttonTexts = new Dictionary<int, string>()
                {
                    { 0, "Yes (Vulkan)" },
                    { 1, "No (OpenGL)" }
                };

                ResponseType response = GtkDialog.CreateCustomDialog(
                    "Ryujinx - Default graphics backend",
                    "Use Vulkan as default graphics backend?",
                    "Ryujinx now supports the Vulkan API. " +
                    "Vulkan greatly improves shader compilation performance, " +
                    "and fixes some graphical glitches; however, since it is a new feature, " +
                    "you may experience some issues that did not occur with OpenGL.\n\n" +
                    "Note that you will also lose any existing shader cache the first time you start a game " +
                    "on version 1.1.200 onwards, because Vulkan required changes to the shader cache that makes it incompatible with previous versions.\n\n" +
                    "Would you like to set Vulkan as the default graphics backend? " +
                    "You can change this at any time on the settings window.",
                    buttonTexts,
                    MessageType.Question);

                ConfigurationState.Instance.Graphics.GraphicsBackend.Value = response == 0
                    ? GraphicsBackend.Vulkan
                    : GraphicsBackend.OpenGl;

                ConfigurationState.Instance.ToFileFormat().SaveConfig(ConfigurationPath);
            }

            Application.Run();
        }

        private static void PrintSystemInfo()
        {
            Logger.Notice.Print(LogClass.Application, $"Ryujinx Version: {Version}");
            SystemInfo.Gather().Print();

            var enabledLogs = Logger.GetEnabledLevels();
            Logger.Notice.Print(LogClass.Application, $"Logs Enabled: {(enabledLogs.Count == 0 ? "<None>" : string.Join(", ", enabledLogs))}");

            if (AppDataManager.Mode == AppDataManager.LaunchMode.Custom)
            {
                Logger.Notice.Print(LogClass.Application, $"Launch Mode: Custom Path {AppDataManager.BaseDirPath}");
            }
            else
            {
                Logger.Notice.Print(LogClass.Application, $"Launch Mode: {AppDataManager.Mode}");
            }
        }

        private static void ProcessUnhandledException(Exception ex, bool isTerminating)
        {
            string message = $"Unhandled exception caught: {ex}";

            Logger.Error?.PrintMsg(LogClass.Application, message);

            if (Logger.Error == null)
            {
                Logger.Notice.PrintMsg(LogClass.Application, message);
            }

            if (isTerminating)
            {
                Exit();
            }
        }

        public static void Exit()
        {
            DiscordIntegrationModule.Exit();

            Logger.Shutdown();
        }
    }
}