misc: Refactor Discord integration to listen on TitleIDs.CurrentApplication changes instead of waiting to be directly told when to change states.

src/Ryujinx.Common/TitleIDs.cs

@@ -8,7 +8,20 @@ namespace Ryujinx.Common
 {
     public static class TitleIDs
     {
-        public static Optional<string> CurrentApplication;
+        private static string _currentApplication;
+
+        public static Optional<string> CurrentApplication
+        {
+            get => _currentApplication;
+            set
+            {
+                _currentApplication = value.OrElse(null);
+                
+                CurrentApplicationChanged?.Invoke(_currentApplication);
+            }
+        }
+
+        public static event Action<Optional<string>> CurrentApplicationChanged;
         
         public static GraphicsBackend SelectGraphicsBackend(string titleId, GraphicsBackend currentBackend)
         {

src/Ryujinx.Graphics.Gpu/GraphicsConfig.cs

@@ -46,6 +46,12 @@ namespace Ryujinx.Graphics.Gpu
         /// Enables or disables high-level emulation of common GPU Macro code.
         /// </summary>
         public static bool EnableMacroHLE = true;
+        
+        /// <summary>
+        /// Title id of the current running game.
+        /// Used by the shader cache.
+        /// </summary>
+        public static string TitleId;
 
         /// <summary>
         /// Enables or disables the shader cache.

src/Ryujinx.Graphics.Gpu/Shader/ShaderCache.cs

@@ -117,8 +117,8 @@ namespace Ryujinx.Graphics.Gpu.Shader
         /// </summary>
         private static string GetDiskCachePath()
         {
-            return GraphicsConfig.EnableShaderCache && TitleIDs.CurrentApplication.HasValue
-                ? Path.Combine(AppDataManager.GamesDirPath, TitleIDs.CurrentApplication, "cache", "shader")
+            return GraphicsConfig.EnableShaderCache && GraphicsConfig.TitleId != null
+                ? Path.Combine(AppDataManager.GamesDirPath, GraphicsConfig.TitleId, "cache", "shader")
                 : null;
         }
 

src/Ryujinx.Graphics.Metal/Window.cs

@@ -22,13 +22,15 @@ namespace Ryujinx.Graphics.Metal
 
         private int _requestedWidth;
         private int _requestedHeight;
-
-        // private bool _vsyncEnabled;
+        
         private AntiAliasing _currentAntiAliasing;
         private bool _updateEffect;
         private IPostProcessingEffect _effect;
         private IScalingFilter _scalingFilter;
         private bool _isLinear;
+
+        public bool IsVSyncEnabled => _metalLayer.DisplaySyncEnabled;
+        
         // private float _scalingFilterLevel;
         private bool _updateScalingFilter;
         private ScalingFilter _currentScalingFilter;
@@ -40,7 +42,7 @@ namespace Ryujinx.Graphics.Metal
             _metalLayer = metalLayer;
         }
 
-        private unsafe void ResizeIfNeeded()
+        private void ResizeIfNeeded()
         {
             if (_requestedWidth != 0 && _requestedHeight != 0)
             {
@@ -54,7 +56,7 @@ namespace Ryujinx.Graphics.Metal
             }
         }
 
-        public unsafe void Present(ITexture texture, ImageCrop crop, Action swapBuffersCallback)
+        public void Present(ITexture texture, ImageCrop crop, Action swapBuffersCallback)
         {
             if (_renderer.Pipeline is Pipeline pipeline && texture is Texture tex)
             {
@@ -141,15 +143,7 @@ namespace Ryujinx.Graphics.Metal
         
         public void ChangeVSyncMode(VSyncMode vSyncMode)
         {
-            switch (vSyncMode)
-            {
-                case VSyncMode.Unbounded:
-                    _metalLayer.DisplaySyncEnabled = false;
-                    break;
-                case VSyncMode.Switch:
-                    _metalLayer.DisplaySyncEnabled = true;
-                    break;
-            }
+            _metalLayer.DisplaySyncEnabled = vSyncMode is VSyncMode.Switch;
         }
 
         public void SetAntiAliasing(AntiAliasing effect)

src/Ryujinx.HLE/Loaders/Processes/Extensions/FileSystemExtensions.cs

@@ -7,6 +7,7 @@ using LibHac.Tools.FsSystem;
 using Ryujinx.Common;
 using Ryujinx.Common.Configuration;
 using Ryujinx.Common.Logging;
+using Ryujinx.Graphics.Gpu;
 using Ryujinx.HLE.Loaders.Executables;
 using Ryujinx.Memory;
 using System;
@@ -103,7 +104,7 @@ namespace Ryujinx.HLE.Loaders.Processes.Extensions
             }
 
             // Initialize GPU.
-            TitleIDs.CurrentApplication = programId.ToString("X16");
+            GraphicsConfig.TitleId = programId.ToString("X16");
             device.Gpu.HostInitalized.Set();
 
             if (!MemoryBlock.SupportsFlags(MemoryAllocationFlags.ViewCompatible))

src/Ryujinx.HLE/Loaders/Processes/ProcessLoader.cs

@@ -8,6 +8,7 @@ using LibHac.Tools.FsSystem;
 using LibHac.Tools.FsSystem.NcaUtils;
 using Ryujinx.Common;
 using Ryujinx.Common.Logging;
+using Ryujinx.Graphics.Gpu;
 using Ryujinx.HLE.Loaders.Executables;
 using Ryujinx.HLE.Loaders.Processes.Extensions;
 using System;
@@ -60,6 +61,8 @@ namespace Ryujinx.HLE.Loaders.Processes
                 {
                     _latestPid = processResult.ProcessId;
 
+                    TitleIDs.CurrentApplication = processResult.ProgramIdText;
+
                     return true;
                 }
             }
@@ -87,6 +90,8 @@ namespace Ryujinx.HLE.Loaders.Processes
                 {
                     _latestPid = processResult.ProcessId;
 
+                    TitleIDs.CurrentApplication = processResult.ProgramIdText;
+
                     return true;
                 }
             }
@@ -114,6 +119,8 @@ namespace Ryujinx.HLE.Loaders.Processes
                     if (processResult.ProgramId > 0x01000000000007FF)
                     {
                         _latestPid = processResult.ProcessId;
+
+                        TitleIDs.CurrentApplication = processResult.ProgramIdText;
                     }
 
                     return true;
@@ -133,6 +140,8 @@ namespace Ryujinx.HLE.Loaders.Processes
                 {
                     _latestPid = processResult.ProcessId;
 
+                    TitleIDs.CurrentApplication = processResult.ProgramIdText;
+
                     return true;
                 }
             }
@@ -184,14 +193,17 @@ namespace Ryujinx.HLE.Loaders.Processes
                     if (nacpData.Value.PresenceGroupId != 0)
                     {
                         programId = nacpData.Value.PresenceGroupId;
+                        TitleIDs.CurrentApplication = programId.ToString("X16");
                     }
                     else if (nacpData.Value.SaveDataOwnerId != 0)
                     {
                         programId = nacpData.Value.SaveDataOwnerId;
+                        TitleIDs.CurrentApplication = programId.ToString("X16");
                     }
                     else if (nacpData.Value.AddOnContentBaseId != 0)
                     {
                         programId = nacpData.Value.AddOnContentBaseId - 0x1000;
+                        TitleIDs.CurrentApplication = programId.ToString("X16");
                     }
                 }
 
@@ -205,7 +217,7 @@ namespace Ryujinx.HLE.Loaders.Processes
             }
 
             // Explicitly null TitleId to disable the shader cache.
-            TitleIDs.CurrentApplication = default;
+            GraphicsConfig.TitleId = null;
             _device.Gpu.HostInitalized.Set();
 
             ProcessResult processResult = ProcessLoaderHelper.LoadNsos(_device,

src/Ryujinx.HLE/Switch.cs

@@ -2,6 +2,7 @@ using LibHac.Common;
 using LibHac.Ns;
 using Ryujinx.Audio.Backends.CompatLayer;
 using Ryujinx.Audio.Integration;
+using Ryujinx.Common;
 using Ryujinx.Common.Configuration;
 using Ryujinx.Graphics.Gpu;
 using Ryujinx.HLE.FileSystem;
@@ -17,6 +18,8 @@ namespace Ryujinx.HLE
 {
     public class Switch : IDisposable
     {
+        public static Switch Shared { get; private set; }
+        
         public HLEConfiguration Configuration { get; }
         public IHardwareDeviceDriver AudioDeviceDriver { get; }
         public MemoryBlock Memory { get; }
@@ -77,6 +80,8 @@ namespace Ryujinx.HLE
             DirtyHacks                              = Configuration.Hacks;
             UpdateVSyncInterval();
 #pragma warning restore IDE0055
+
+            Shared = this;
         }
 
         public void ProcessFrame()
@@ -145,6 +150,9 @@ namespace Ryujinx.HLE
                 AudioDeviceDriver.Dispose();
                 FileSystem.Dispose();
                 Memory.Dispose();
+
+                TitleIDs.CurrentApplication = null;
+                Shared = null;
             }
         }
     }

src/Ryujinx.UI.Common/DiscordIntegrationModule.cs

@@ -2,6 +2,7 @@ using DiscordRPC;
 using Humanizer;
 using Humanizer.Localisation;
 using Ryujinx.Common;
+using Ryujinx.HLE;
 using Ryujinx.HLE.Loaders.Processes;
 using Ryujinx.UI.App.Common;
 using Ryujinx.UI.Common.Configuration;
@@ -44,6 +45,16 @@ namespace Ryujinx.UI.Common
             };
 
             ConfigurationState.Instance.EnableDiscordIntegration.Event += Update;
+            TitleIDs.CurrentApplicationChanged += titleId =>
+            {
+                if (titleId)
+                    SwitchToPlayingState(
+                        ApplicationLibrary.LoadAndSaveMetaData(titleId),
+                        Switch.Shared.Processes.ActiveApplication
+                        );
+                else 
+                    SwitchToMainState();
+            };
         }
 
         private static void Update(object sender, ReactiveEventArgs<bool> evnt)
@@ -69,7 +80,7 @@ namespace Ryujinx.UI.Common
             }
         }
 
-        public static void SwitchToPlayingState(ApplicationMetadata appMeta, ProcessResult procRes)
+        private static void SwitchToPlayingState(ApplicationMetadata appMeta, ProcessResult procRes)
         {
             _discordClient?.SetPresence(new RichPresence
             {
@@ -88,7 +99,7 @@ namespace Ryujinx.UI.Common
             });
         }
 
-        public static void SwitchToMainState() => _discordClient?.SetPresence(_discordPresenceMain);
+        private static void SwitchToMainState() => _discordClient?.SetPresence(_discordPresenceMain);
 
         private static string TruncateToByteLength(string input)
         {

src/Ryujinx/AppHost.cs

@@ -578,7 +578,6 @@ namespace Ryujinx.Ava
         public void Stop()
         {
             _isActive = false;
-            DiscordIntegrationModule.SwitchToMainState();
         }
 
         private void Exit()
@@ -862,13 +861,11 @@ namespace Ryujinx.Ava
 
                 return false;
             }
-
-            ApplicationMetadata appMeta = ApplicationLibrary.LoadAndSaveMetaData(Device.Processes.ActiveApplication.ProgramIdText,
+            
+            ApplicationLibrary.LoadAndSaveMetaData(Device.Processes.ActiveApplication.ProgramIdText,
                 appMetadata => appMetadata.UpdatePreGame()
             );
 
-            DiscordIntegrationModule.SwitchToPlayingState(appMeta, Device.Processes.ActiveApplication);
-
             return true;
         }