Files
sharpemu/src/SharpEmu.GUI/MainWindow.axaml.cs

1257 lines
39 KiB
C#

// Copyright (C) 2026 SharpEmu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
using System.Collections.Concurrent;
using System.Collections.ObjectModel;
using System.Reflection;
using System.Text.Json;
using System.Diagnostics;
using Avalonia;
using Avalonia.Controls;
using Avalonia.Input;
using Avalonia.Interactivity;
using Avalonia.Media;
using Avalonia.Media.Imaging;
using Avalonia.Platform.Storage;
using Avalonia.Threading;
using Avalonia.VisualTree;
using SharpEmu.Libs.Pad;
using SharpEmu.Logging;
namespace SharpEmu.GUI;
public partial class MainWindow : Window
{
private const int MaxConsoleLines = 4000;
private static readonly IBrush DefaultLineBrush = new SolidColorBrush(Color.Parse("#C7CFDE"));
private static readonly IBrush DimLineBrush = new SolidColorBrush(Color.Parse("#6B7488"));
private static readonly IBrush InfoLineBrush = new SolidColorBrush(Color.Parse("#6FA8FF"));
private static readonly IBrush WarningLineBrush = new SolidColorBrush(Color.Parse("#E8B341"));
private static readonly IBrush ErrorLineBrush = new SolidColorBrush(Color.Parse("#F2777C"));
private static readonly IBrush SuccessLineBrush = new SolidColorBrush(Color.Parse("#63D489"));
private readonly List<GameEntry> _allGames = new();
private readonly ObservableCollection<GameEntry> _visibleGames = new();
private readonly ObservableCollection<LogLine> _consoleLines = new();
private readonly ConcurrentQueue<(string Line, bool IsError)> _pendingLines = new();
private readonly DispatcherTimer _consoleFlushTimer;
private GuiSettings _settings = new();
private EmulatorProcess? _emulator;
private StreamWriter? _fileLog;
private readonly SndPreviewPlayer _sndPreview = new();
private string? _emulatorExePath;
private bool _isRunning;
private int _autoScrollTicks;
private int _detailLoadGeneration;
private int _backdropGeneration;
// Controller navigation state.
private readonly DispatcherTimer _gamepadTimer;
private uint _previousPadButtons;
private long _navLeftNextAt;
private long _navRightNextAt;
private long _navUpNextAt;
private long _navDownNextAt;
public MainWindow()
{
InitializeComponent();
GameList.ItemsSource = _visibleGames;
ConsoleList.ItemsSource = _consoleLines;
_consoleFlushTimer = new DispatcherTimer
{
Interval = TimeSpan.FromMilliseconds(80),
};
_consoleFlushTimer.Tick += (_, _) =>
{
FlushPendingConsoleLines();
MaybeAutoScroll();
};
_consoleFlushTimer.Start();
TitleBar.PointerPressed += OnTitleBarPointerPressed;
GameList.SelectionChanged += (_, _) => UpdateSelectedGame();
GameList.DoubleTapped += (_, _) => LaunchSelected();
SearchBox.TextChanged += (_, _) => RefreshVisibleGames();
AddFolderButton.Click += async (_, _) => await AddFolderAsync();
EmptyAddFolderButton.Click += async (_, _) => await AddFolderAsync();
RescanButton.Click += async (_, _) => await RescanLibraryAsync();
OpenFileButton.Click += async (_, _) => await OpenFileAsync();
LaunchButton.Click += (_, _) => LaunchSelected();
StopButton.Click += (_, _) => _emulator?.Stop();
ClearLogButton.Click += (_, _) => _consoleLines.Clear();
CopyLogButton.Click += async (_, _) => await CopyConsoleAsync();
OptionsToggle.IsCheckedChanged += (_, _) => OptionsPanel.IsVisible = OptionsToggle.IsChecked == true;
ConsoleToggle.IsCheckedChanged += (_, _) => ConsolePanel.IsVisible = ConsoleToggle.IsChecked == true;
TitleMusicToggle.IsCheckedChanged += (_, _) => OnTitleMusicToggled();
GameList.AddHandler(ContextRequestedEvent, OnGameContextRequested, RoutingStrategies.Tunnel);
CtxLaunch.Click += (_, _) => LaunchSelected();
CtxOpenFolder.Click += (_, _) => OpenSelectedGameFolder();
CtxCopyPath.Click += async (_, _) =>
await CopyToClipboardAsync((GameList.SelectedItem as GameEntry)?.Path, "Path");
CtxCopyTitleId.Click += async (_, _) =>
await CopyToClipboardAsync((GameList.SelectedItem as GameEntry)?.TitleId, "Title ID");
CtxRemove.Click += (_, _) => RemoveSelectedFromLibrary();
Opened += async (_, _) => await OnOpenedAsync();
Closing += (_, _) => OnWindowClosing();
DualSenseReader.EnsureStarted();
XInputReader.EnsureStarted();
_gamepadTimer = new DispatcherTimer
{
Interval = TimeSpan.FromMilliseconds(50),
};
_gamepadTimer.Tick += (_, _) => PollGamepad();
_gamepadTimer.Start();
}
// ---- Controller navigation ----
private void PollGamepad()
{
// DualSense wins when both are connected; XInput covers Xbox pads.
if (!DualSenseReader.TryGetState(out var pad) && !XInputReader.TryGetState(out pad))
{
_previousPadButtons = 0;
return;
}
if (!IsActive)
{
// Ignore input while the launcher is in the background (e.g. the
// game window is focused and using the same controller).
_previousPadButtons = pad.Buttons;
return;
}
var now = Environment.TickCount64;
var left = (pad.Buttons & 0x0080) != 0 || pad.LeftX < 64;
var right = (pad.Buttons & 0x0020) != 0 || pad.LeftX > 192;
var up = (pad.Buttons & 0x0010) != 0 || pad.LeftY < 64;
var down = (pad.Buttons & 0x0040) != 0 || pad.LeftY > 192;
if (ShouldNavigate(left, ref _navLeftNextAt, now))
{
MoveSelection(-1);
}
if (ShouldNavigate(right, ref _navRightNextAt, now))
{
MoveSelection(1);
}
if (ShouldNavigate(up, ref _navUpNextAt, now))
{
MoveSelection(-TilesPerRow());
}
if (ShouldNavigate(down, ref _navDownNextAt, now))
{
MoveSelection(TilesPerRow());
}
var pressed = pad.Buttons & ~_previousPadButtons;
if ((pressed & 0x4000) != 0) // Cross
{
LaunchSelected();
}
if ((pressed & 0x2000) != 0) // Circle
{
_emulator?.Stop();
}
_previousPadButtons = pad.Buttons;
}
/// <summary>
/// Edge-triggered with hold-to-repeat: fires on press, then repeats
/// after 400ms at 130ms intervals while held.
/// </summary>
private static bool ShouldNavigate(bool held, ref long nextAt, long now)
{
if (!held)
{
nextAt = 0;
return false;
}
if (nextAt == 0)
{
nextAt = now + 400;
return true;
}
if (now >= nextAt)
{
nextAt = now + 130;
return true;
}
return false;
}
private void MoveSelection(int delta)
{
if (_visibleGames.Count == 0)
{
return;
}
var index = GameList.SelectedIndex < 0
? 0
: Math.Clamp(GameList.SelectedIndex + delta, 0, _visibleGames.Count - 1);
GameList.SelectedIndex = index;
GameList.ScrollIntoView(index);
}
private int TilesPerRow()
{
// Tile footprint: 128 content + 20 item padding + 10 item margin.
const double TileOuterWidth = 158;
var width = GameList.Bounds.Width;
return width > TileOuterWidth ? (int)(width / TileOuterWidth) : 1;
}
private async Task OnOpenedAsync()
{
var version = Assembly.GetExecutingAssembly().GetName().Version;
var display = version is not null ? $"v{version.ToString(3)}" : "v0.0.1";
display += BuildInfo.CommitSha is null
? " · dev"
: BuildInfo.IsOfficialRelease
? $" · {BuildInfo.CommitSha}"
: $" · UNOFFICIAL {BuildInfo.CommitSha}";
VersionText.Text = display;
Title = $"SharpEmu {display}";
ToolTip.SetTip(VersionText, BuildInfo.Banner);
_settings = GuiSettings.Load();
ApplySettingsToControls();
LocateEmulator();
await RescanLibraryAsync();
}
private void OnWindowClosing()
{
ReadControlsIntoSettings();
_settings.Save();
_consoleFlushTimer.Stop();
_gamepadTimer.Stop();
_sndPreview.Stop();
_emulator?.Dispose();
DropFileLog();
}
private void OnTitleBarPointerPressed(object? sender, PointerPressedEventArgs e)
{
if (e.GetCurrentPoint(this).Properties.IsLeftButtonPressed)
{
BeginMoveDrag(e);
}
}
// ---- Settings <-> controls ----
private void ApplySettingsToControls()
{
LogLevelBox.SelectedIndex = _settings.LogLevel.ToLowerInvariant() switch
{
"trace" => 0,
"debug" => 1,
"info" => 2,
"warning" or "warn" => 3,
"error" => 4,
"critical" or "fatal" => 5,
_ => 2,
};
TraceImportsBox.Value = Math.Clamp(_settings.ImportTraceLimit, 0, 4096);
StrictToggle.IsChecked = _settings.StrictDynlibResolution;
LogToFileToggle.IsChecked = _settings.LogToFile;
TitleMusicToggle.IsChecked = _settings.PlayTitleMusic;
}
private void ReadControlsIntoSettings()
{
_settings.LogLevel = SelectedLogLevel();
_settings.ImportTraceLimit = (int)(TraceImportsBox.Value ?? 0);
_settings.StrictDynlibResolution = StrictToggle.IsChecked == true;
_settings.LogToFile = LogToFileToggle.IsChecked == true;
_settings.PlayTitleMusic = TitleMusicToggle.IsChecked == true;
}
private string SelectedLogLevel()
{
return LogLevelBox.SelectedIndex switch
{
0 => "Trace",
1 => "Debug",
2 => "Info",
3 => "Warning",
4 => "Error",
5 => "Critical",
_ => "Info",
};
}
// ---- Emulator discovery ----
private void LocateEmulator()
{
var exeName = OperatingSystem.IsWindows() ? "SharpEmu.exe" : "SharpEmu";
var baseDirectory = AppContext.BaseDirectory;
var candidates = new List<string>();
if (!string.IsNullOrWhiteSpace(_settings.EmulatorPath))
{
candidates.Add(_settings.EmulatorPath);
}
// The GUI and the CLI are the same executable: with arguments it runs
// the emulator, so the preferred child process is this process itself.
if (Environment.ProcessPath is { } selfPath &&
Path.GetFileNameWithoutExtension(selfPath).Equals("SharpEmu", StringComparison.OrdinalIgnoreCase))
{
candidates.Add(selfPath);
}
candidates.Add(Path.Combine(baseDirectory, exeName));
candidates.Add(Path.Combine(baseDirectory, "win-x64", exeName));
candidates.Add(Path.Combine(baseDirectory, "..", exeName));
_emulatorExePath = candidates.FirstOrDefault(File.Exists) is { } found
? Path.GetFullPath(found)
: null;
EmulatorPathText.Text = _emulatorExePath is not null
? $"Emulator: {_emulatorExePath}"
: "Emulator: SharpEmu executable not found — build SharpEmu.CLI first.";
}
// ---- Game library ----
private async Task AddFolderAsync()
{
var folders = await StorageProvider.OpenFolderPickerAsync(new FolderPickerOpenOptions
{
Title = "Choose a folder containing games",
AllowMultiple = false,
});
var path = folders.FirstOrDefault()?.TryGetLocalPath();
if (string.IsNullOrEmpty(path))
{
return;
}
var changed = false;
if (!_settings.GameFolders.Contains(path, StringComparer.OrdinalIgnoreCase))
{
_settings.GameFolders.Add(path);
changed = true;
}
// Adding (or re-adding) a folder is an explicit signal to restore any
// games beneath it that were removed from the library earlier.
var prefix = Path.TrimEndingDirectorySeparator(path) + Path.DirectorySeparatorChar;
changed |= _settings.ExcludedGames.RemoveAll(excluded =>
excluded.StartsWith(prefix, StringComparison.OrdinalIgnoreCase)) > 0;
if (changed)
{
_settings.Save();
}
await RescanLibraryAsync();
}
private async Task RescanLibraryAsync()
{
var folders = _settings.GameFolders.ToArray();
var excluded = new HashSet<string>(_settings.ExcludedGames, StringComparer.OrdinalIgnoreCase);
StatusBarRight.Text = "Scanning library…";
var games = await Task.Run(() => ScanFolders(folders, excluded));
_allGames.Clear();
_allGames.AddRange(games);
RefreshVisibleGames();
LoadGameDetailsInBackground(games);
StatusBarRight.Text = folders.Length == 0
? "Add a game folder to populate the library."
: $"Library scanned: {games.Count} game(s) in {folders.Length} folder(s).";
}
/// <summary>
/// Enriches games off the UI thread — decodes cover art and totals each
/// game's install folder size — posting results back as they become
/// ready. A newer scan invalidates older loads.
/// </summary>
private void LoadGameDetailsInBackground(IReadOnlyList<GameEntry> games)
{
var generation = ++_detailLoadGeneration;
_ = Task.Run(() =>
{
// Covers first: they are cheap and the most visible, so the grid
// fills with art before the (potentially slow) size pass runs.
foreach (var game in games)
{
if (generation != _detailLoadGeneration)
{
return;
}
if (game.CoverPath is null)
{
continue;
}
try
{
using var stream = File.OpenRead(game.CoverPath);
var bitmap = Bitmap.DecodeToWidth(stream, 312);
Dispatcher.UIThread.Post(() =>
{
if (generation == _detailLoadGeneration)
{
game.Cover = bitmap;
}
});
}
catch (Exception)
{
// A missing or undecodable image keeps the placeholder.
}
}
foreach (var game in games)
{
if (generation != _detailLoadGeneration)
{
return;
}
var size = ComputeInstallSize(game.Path);
if (size > 0)
{
Dispatcher.UIThread.Post(() =>
{
if (generation == _detailLoadGeneration)
{
game.SizeBytes = size;
}
});
}
}
});
}
/// <summary>
/// Totals the size of the game's install folder (the directory holding
/// the eboot), which is far more accurate than the eboot alone.
/// </summary>
private static long ComputeInstallSize(string ebootPath)
{
var directory = Path.GetDirectoryName(ebootPath);
if (directory is null)
{
return 0;
}
long total = 0;
try
{
var enumeration = new EnumerationOptions
{
IgnoreInaccessible = true,
RecurseSubdirectories = true,
};
foreach (var file in new DirectoryInfo(directory).EnumerateFiles("*", enumeration))
{
total += file.Length;
}
}
catch (Exception)
{
// Fall back to whatever was accumulated so far.
}
return total;
}
private static List<GameEntry> ScanFolders(IReadOnlyList<string> folders, IReadOnlySet<string> excludedPaths)
{
var games = new List<GameEntry>();
var seen = new HashSet<string>(StringComparer.OrdinalIgnoreCase);
var enumeration = new EnumerationOptions
{
IgnoreInaccessible = true,
RecurseSubdirectories = true,
MaxRecursionDepth = 8,
};
foreach (var folder in folders)
{
if (!Directory.Exists(folder))
{
continue;
}
try
{
foreach (var file in Directory.EnumerateFiles(folder, "eboot.bin", enumeration))
{
var fullPath = Path.GetFullPath(file);
if (!seen.Add(fullPath) || excludedPaths.Contains(fullPath))
{
continue;
}
long size = 0;
try
{
size = new FileInfo(fullPath).Length;
}
catch (IOException)
{
}
var (title, titleId) = TryReadParamJson(fullPath);
games.Add(new GameEntry(
title ?? GameNameFor(fullPath), titleId, fullPath, size,
FindCoverFor(fullPath), FindBackgroundFor(fullPath)));
}
}
catch (Exception)
{
// Skip folders that fail to enumerate.
}
}
games.Sort((a, b) => string.Compare(a.Name, b.Name, StringComparison.OrdinalIgnoreCase));
return games;
}
/// <summary>
/// Reads the game title and title id from sce_sys/param.json next to the
/// executable, when present.
/// </summary>
private static (string? Title, string? TitleId) TryReadParamJson(string ebootPath)
{
try
{
var directory = Path.GetDirectoryName(ebootPath);
if (directory is null)
{
return (null, null);
}
var paramPath = Path.Combine(directory, "sce_sys", "param.json");
if (!File.Exists(paramPath))
{
return (null, null);
}
// ReadAllText handles a UTF-8 BOM, which JsonDocument rejects in
// raw bytes.
using var document = JsonDocument.Parse(File.ReadAllText(paramPath));
var root = document.RootElement;
string? titleId = null;
if (root.TryGetProperty("titleId", out var idElement) && idElement.ValueKind == JsonValueKind.String)
{
titleId = idElement.GetString();
}
string? title = null;
if (root.TryGetProperty("localizedParameters", out var localized) &&
localized.ValueKind == JsonValueKind.Object)
{
if (localized.TryGetProperty("defaultLanguage", out var language) &&
language.ValueKind == JsonValueKind.String &&
localized.TryGetProperty(language.GetString()!, out var defaultBlock) &&
defaultBlock.ValueKind == JsonValueKind.Object &&
defaultBlock.TryGetProperty("titleName", out var titleName) &&
titleName.ValueKind == JsonValueKind.String)
{
title = titleName.GetString();
}
else
{
foreach (var property in localized.EnumerateObject())
{
if (property.Value.ValueKind == JsonValueKind.Object &&
property.Value.TryGetProperty("titleName", out var anyTitleName) &&
anyTitleName.ValueKind == JsonValueKind.String)
{
title = anyTitleName.GetString();
break;
}
}
}
}
return (
string.IsNullOrWhiteSpace(title) ? null : title,
string.IsNullOrWhiteSpace(titleId) ? null : titleId);
}
catch (Exception)
{
return (null, null);
}
}
/// <summary>
/// Finds the cover art shipped with the game: sce_sys/icon0.png next to
/// the executable (falling back to pic0.png).
/// </summary>
private static string? FindCoverFor(string ebootPath)
{
var directory = Path.GetDirectoryName(ebootPath);
if (directory is null)
{
return null;
}
var sceSys = Path.Combine(directory, "sce_sys");
foreach (var candidate in new[] { "icon0.png", "pic0.png" })
{
var coverPath = Path.Combine(sceSys, candidate);
if (File.Exists(coverPath))
{
return coverPath;
}
}
return null;
}
/// <summary>
/// Finds the key art shipped with the game (sce_sys/pic0.png, falling
/// back to pic1.png), used as the window backdrop when selected.
/// </summary>
private static string? FindBackgroundFor(string ebootPath)
{
var directory = Path.GetDirectoryName(ebootPath);
if (directory is null)
{
return null;
}
var sceSys = Path.Combine(directory, "sce_sys");
foreach (var candidate in new[] { "pic0.png", "pic1.png" })
{
var backgroundPath = Path.Combine(sceSys, candidate);
if (File.Exists(backgroundPath))
{
return backgroundPath;
}
}
return null;
}
private static string GameNameFor(string ebootPath)
{
var directory = Path.GetDirectoryName(ebootPath);
var name = directory is not null ? Path.GetFileName(directory) : null;
return string.IsNullOrEmpty(name) ? Path.GetFileName(ebootPath) : name;
}
// ---- Game context menu ----
/// <summary>
/// Selects the tile under the pointer before its context menu opens, and
/// suppresses the menu on empty grid space.
/// </summary>
private void OnGameContextRequested(object? sender, ContextRequestedEventArgs e)
{
var item = (e.Source as Visual)?.FindAncestorOfType<ListBoxItem>(includeSelf: true);
if (item?.DataContext is not GameEntry game)
{
e.Handled = true;
return;
}
GameList.SelectedItem = game;
CtxLaunch.IsEnabled = !_isRunning;
CtxCopyTitleId.IsEnabled = game.TitleId is not null;
}
private void OpenSelectedGameFolder()
{
if (GameList.SelectedItem is not GameEntry game)
{
return;
}
try
{
if (OperatingSystem.IsWindows())
{
Process.Start(new ProcessStartInfo
{
FileName = "explorer.exe",
Arguments = $"/select,\"{game.Path}\"",
UseShellExecute = false,
});
}
else if (Path.GetDirectoryName(game.Path) is { } directory)
{
Process.Start(new ProcessStartInfo
{
FileName = OperatingSystem.IsMacOS() ? "open" : "xdg-open",
Arguments = $"\"{directory}\"",
UseShellExecute = false,
});
}
}
catch (Exception ex)
{
StatusBarRight.Text = $"Could not open folder: {ex.Message}";
}
}
private async Task CopyToClipboardAsync(string? text, string what)
{
if (string.IsNullOrEmpty(text) || Clipboard is null)
{
return;
}
await Clipboard.SetTextAsync(text);
StatusBarRight.Text = $"{what} copied to clipboard.";
}
private void RemoveSelectedFromLibrary()
{
if (GameList.SelectedItem is not GameEntry game)
{
return;
}
if (!_settings.ExcludedGames.Contains(game.Path, StringComparer.OrdinalIgnoreCase))
{
_settings.ExcludedGames.Add(game.Path);
_settings.Save();
}
_allGames.RemoveAll(g => string.Equals(g.Path, game.Path, StringComparison.OrdinalIgnoreCase));
GameList.SelectedItem = null;
RefreshVisibleGames();
StatusBarRight.Text = $"Removed “{game.Name}” from the library. Re-add its folder to restore it.";
}
private void RefreshVisibleGames()
{
var query = SearchBox.Text?.Trim() ?? string.Empty;
var selectedPath = (GameList.SelectedItem as GameEntry)?.Path;
_visibleGames.Clear();
foreach (var game in _allGames)
{
if (query.Length == 0 ||
game.Name.Contains(query, StringComparison.OrdinalIgnoreCase) ||
game.Path.Contains(query, StringComparison.OrdinalIgnoreCase) ||
(game.TitleId?.Contains(query, StringComparison.OrdinalIgnoreCase) ?? false))
{
_visibleGames.Add(game);
}
}
GameCountText.Text = _visibleGames.Count == 1 ? "1 game" : $"{_visibleGames.Count} games";
if (selectedPath is not null &&
_visibleGames.FirstOrDefault(g => g.Path.Equals(selectedPath, StringComparison.OrdinalIgnoreCase))
is { } reselected)
{
GameList.SelectedItem = reselected;
}
EmptyState.IsVisible = _visibleGames.Count == 0;
if (_visibleGames.Count == 0)
{
var hasFilter = query.Length > 0;
EmptyStateTitle.Text = hasFilter ? "No games match your search" : "Your library is empty";
EmptyStateHint.Text = hasFilter
? $"Nothing in the library matches “{query}”."
: "Add a folder containing your games to get started.";
EmptyAddFolderButton.IsVisible = !hasFilter;
}
UpdateSelectedGame();
}
private void UpdateSelectedGame()
{
if (GameList.SelectedItem is GameEntry game)
{
SelectedGameTitle.Text = game.Name;
SelectedGamePath.Text = game.Path;
SelectedCoverPanel.DataContext = game;
_ = UpdateBackdropAsync(game);
PlaySelectedGamePreview(game);
}
else
{
SelectedGameTitle.Text = "No game selected";
SelectedGamePath.Text = "Pick a game from the library, or open an eboot.bin directly.";
SelectedCoverPanel.DataContext = null;
_ = UpdateBackdropAsync(null);
_sndPreview.Stop();
}
UpdateRunButtons();
}
/// <summary>
/// Loops the selected game's sce_sys/snd0.at9 preview music, console
/// home screen style. Silent while a game is running or when disabled
/// in the options.
/// </summary>
private void PlaySelectedGamePreview(GameEntry game)
{
if (_isRunning || !_settings.PlayTitleMusic)
{
return;
}
var directory = Path.GetDirectoryName(game.Path);
var sndPath = directory is null ? null : Path.Combine(directory, "sce_sys", "snd0.at9");
if (sndPath is not null && File.Exists(sndPath))
{
_sndPreview.Play(sndPath);
}
else
{
_sndPreview.Stop();
}
}
private void OnTitleMusicToggled()
{
_settings.PlayTitleMusic = TitleMusicToggle.IsChecked == true;
if (!_settings.PlayTitleMusic)
{
_sndPreview.Stop();
}
else if (GameList.SelectedItem is GameEntry game)
{
PlaySelectedGamePreview(game);
}
}
/// <summary>Pauses the preview music while the window is minimized.</summary>
protected override void OnPropertyChanged(AvaloniaPropertyChangedEventArgs change)
{
base.OnPropertyChanged(change);
if (change.Property == WindowStateProperty)
{
if (WindowState == WindowState.Minimized)
{
_sndPreview.Pause();
}
else
{
_sndPreview.Resume();
}
}
}
/// <summary>
/// Fades the window backdrop to the selected game's key art. The image
/// decodes off the UI thread and is cached on the entry; a newer
/// selection cancels the fade-in of an older one.
/// </summary>
private async Task UpdateBackdropAsync(GameEntry? game)
{
var generation = ++_backdropGeneration;
BackdropImage.Opacity = 0;
if (game?.BackgroundPath is null)
{
return;
}
if (game.Background is null)
{
try
{
var path = game.BackgroundPath;
game.Background = await Task.Run(() =>
{
using var stream = File.OpenRead(path);
return Bitmap.DecodeToWidth(stream, 1600);
});
}
catch (Exception)
{
return; // undecodable key art: keep the plain background
}
}
if (generation == _backdropGeneration)
{
BackdropImage.Source = game.Background;
BackdropImage.Opacity = 1.0;
}
}
// ---- Launching ----
private async Task OpenFileAsync()
{
var files = await StorageProvider.OpenFilePickerAsync(new FilePickerOpenOptions
{
Title = "Open an executable to launch",
AllowMultiple = false,
FileTypeFilter = new[]
{
new FilePickerFileType("PS executables") { Patterns = new[] { "eboot.bin", "*.bin", "*.self", "*.elf" } },
FilePickerFileTypes.All,
},
});
var path = files.FirstOrDefault()?.TryGetLocalPath();
if (!string.IsNullOrEmpty(path))
{
Launch(path, Path.GetFileName(path));
}
}
private void LaunchSelected()
{
if (GameList.SelectedItem is GameEntry game)
{
Launch(game.Path, game.Name, game.TitleId);
}
}
private void Launch(string ebootPath, string displayName, string? titleId = null)
{
if (_isRunning)
{
return;
}
if (_emulatorExePath is null)
{
LocateEmulator();
if (_emulatorExePath is null)
{
AppendConsoleLine("SharpEmu executable not found. Build the SharpEmu.CLI project first (dotnet build).", ErrorLineBrush);
return;
}
}
_sndPreview.Stop();
ReadControlsIntoSettings();
_settings.Save();
var arguments = new List<string>
{
"--cpu-engine=native",
$"--log-level={_settings.LogLevel.ToLowerInvariant()}",
};
if (_settings.StrictDynlibResolution)
{
arguments.Add("--strict");
}
if (_settings.ImportTraceLimit > 0)
{
arguments.Add($"--trace-imports={_settings.ImportTraceLimit}");
}
arguments.Add(ebootPath);
_consoleLines.Clear();
ConsoleToggle.IsChecked = true;
// Mirror everything the console pane shows into a log file for the
// duration of the run, regardless of the emulator's log level.
DropFileLog();
if (_settings.LogToFile && BuildLogFilePath(titleId) is { } logFilePath)
{
try
{
_fileLog = new StreamWriter(logFilePath, append: false);
AppendConsoleLine($"Log file: {logFilePath}", DimLineBrush);
}
catch (Exception ex)
{
AppendConsoleLine($"Could not open the log file: {ex.Message}", WarningLineBrush);
}
}
AppendConsoleLine($"$ SharpEmu {string.Join(' ', arguments)}", DimLineBrush);
var emulator = new EmulatorProcess();
emulator.OutputReceived += (line, isError) => _pendingLines.Enqueue((line, isError));
emulator.Exited += code => Dispatcher.UIThread.Post(() => OnEmulatorExited(code));
try
{
emulator.Start(_emulatorExePath, arguments, Path.GetDirectoryName(ebootPath));
}
catch (Exception ex)
{
emulator.Dispose();
AppendConsoleLine($"Failed to start the emulator: {ex.Message}", ErrorLineBrush);
DropFileLog();
return;
}
_emulator = emulator;
_isRunning = true;
StatusDot.Fill = SuccessLineBrush;
StatusText.Text = $"Running — {displayName}";
StatusBarRight.Text = $"Running {displayName}";
UpdateRunButtons();
}
/// <summary>
/// Builds "user/logs/&lt;titleId&gt;-&lt;timestamp&gt;.log" next to the emulator
/// executable, following the same portable-data convention as savedata.
/// </summary>
private string? BuildLogFilePath(string? titleId)
{
try
{
var exeDirectory = Path.GetDirectoryName(_emulatorExePath);
if (string.IsNullOrEmpty(exeDirectory))
{
return null;
}
var logsDirectory = Path.Combine(exeDirectory, "user", "logs");
Directory.CreateDirectory(logsDirectory);
var id = string.IsNullOrWhiteSpace(titleId) ? "UNKNOWN" : titleId;
foreach (var invalid in Path.GetInvalidFileNameChars())
{
id = id.Replace(invalid, '_');
}
return Path.Combine(logsDirectory, $"{id}-{DateTime.Now:yyyyMMdd-HHmmss}.log");
}
catch (Exception)
{
return null; // unwritable location: launch continues without a log file
}
}
private void OnEmulatorExited(int exitCode)
{
FlushPendingConsoleLines();
_isRunning = false;
_emulator?.Dispose();
_emulator = null;
var meaning = exitCode switch
{
0 => "OK",
1 => "invalid arguments",
2 => "eboot not found",
3 => "runtime exception",
4 => "emulation error",
_ => "unknown",
};
var brush = exitCode == 0 ? SuccessLineBrush : ErrorLineBrush;
AppendConsoleLine($"Process exited with code {exitCode} ({meaning}).", brush);
CloseFileLogSoon();
StatusDot.Fill = exitCode == 0 ? (IBrush)SuccessLineBrush : ErrorLineBrush;
StatusText.Text = $"Exited with code {exitCode} ({meaning})";
StatusBarRight.Text = "Idle";
UpdateRunButtons();
}
private void UpdateRunButtons()
{
LaunchButton.IsEnabled = !_isRunning && GameList.SelectedItem is GameEntry;
StopButton.IsEnabled = _isRunning;
OpenFileButton.IsEnabled = !_isRunning;
}
// ---- Console ----
private void FlushPendingConsoleLines()
{
if (_pendingLines.IsEmpty)
{
return;
}
var incoming = new List<LogLine>();
while (_pendingLines.TryDequeue(out var pending))
{
WriteFileLog(pending.Line);
incoming.Add(new LogLine(pending.Line, BrushForLine(pending.Line)));
}
FlushFileLog();
if (incoming.Count >= MaxConsoleLines)
{
// A burst larger than the cap: keep only the newest lines.
_consoleLines.Clear();
for (var i = incoming.Count - MaxConsoleLines; i < incoming.Count; i++)
{
_consoleLines.Add(incoming[i]);
}
}
else
{
var overflow = _consoleLines.Count + incoming.Count - MaxConsoleLines;
for (var i = 0; i < overflow; i++)
{
_consoleLines.RemoveAt(0);
}
foreach (var line in incoming)
{
_consoleLines.Add(line);
}
}
_autoScrollTicks = 3;
}
private void AppendConsoleLine(string text, IBrush brush)
{
WriteFileLog(text);
FlushFileLog();
_consoleLines.Add(new LogLine(text, brush));
_autoScrollTicks = 3;
MaybeAutoScroll();
}
// ---- Console-to-file mirroring ----
private void WriteFileLog(string text)
{
if (_fileLog is not { } writer)
{
return;
}
try
{
writer.Write('[');
writer.Write(DateTime.Now.ToString("HH:mm:ss.fff"));
writer.Write("] ");
writer.WriteLine(text);
}
catch (Exception)
{
DropFileLog(); // unwritable (disk full, etc.): stop mirroring
}
}
private void FlushFileLog()
{
try
{
_fileLog?.Flush();
}
catch (Exception)
{
DropFileLog();
}
}
private void DropFileLog()
{
var writer = _fileLog;
_fileLog = null;
try
{
writer?.Dispose();
}
catch (Exception)
{
}
}
/// <summary>
/// The pipe reader threads can deliver a final burst after the exit
/// event, so the file stays open for one more flush cycle.
/// </summary>
private void CloseFileLogSoon()
{
if (_fileLog is not { } writer)
{
return;
}
DispatcherTimer.RunOnce(() =>
{
if (ReferenceEquals(_fileLog, writer))
{
FlushPendingConsoleLines();
DropFileLog();
}
}, TimeSpan.FromMilliseconds(400));
}
private void MaybeAutoScroll()
{
// ScrollToEnd is applied over a few flush-timer ticks because the
// virtualizing panel re-estimates its extent after large batches, and
// a single scroll can land short of the true end. A synchronous
// ScrollIntoView during rapid adds is avoided entirely — it can crash
// the panel with "Invalid Arrange rectangle".
if (_autoScrollTicks <= 0 || AutoScrollCheck.IsChecked != true)
{
return;
}
_autoScrollTicks--;
(ConsoleList.Scroll as ScrollViewer)?.ScrollToEnd();
}
private static IBrush BrushForLine(string line)
{
if (line.Contains("[ERROR]", StringComparison.Ordinal) ||
line.Contains("[CRITICAL]", StringComparison.Ordinal))
{
return ErrorLineBrush;
}
if (line.Contains("[WARNING]", StringComparison.Ordinal))
{
return WarningLineBrush;
}
if (line.Contains("[INFO]", StringComparison.Ordinal))
{
return InfoLineBrush;
}
if (line.Contains("[DEBUG]", StringComparison.Ordinal) ||
line.Contains("[TRACE]", StringComparison.Ordinal))
{
return DimLineBrush;
}
return DefaultLineBrush;
}
private async Task CopyConsoleAsync()
{
if (_consoleLines.Count == 0 || Clipboard is null)
{
return;
}
var text = string.Join(Environment.NewLine, _consoleLines.Select(line => line.Text));
await Clipboard.SetTextAsync(text);
}
}