PPTC Profiles (#370)

Added functionality that allows ExeFS mods to compile to their own PPTC
Profile and therefore store PTC data between sessions.
The feature calculates the hash of the currently loaded ExeFS mods and
stores the PPTC data in a profile that matches said hash, so you can
have multiple ExeFS loadouts without causing issues. This includes
different versions of the same mod as their hashes will be different.
Using this PR should be seamless as the JIT Sparse PR already laid the
groundwork for PPTC Profiles and this PR just allows ExeFS mods to load
and store their own profiles besides the `default` profile.

 **WARNING!** 
**This will update your PPTC profile version, which means the
PPTC profile will be invalidated if you try to run a PR/Build/Branch
that does not include this change!**
**This is only relevant for the default PPTC Profile, as any other profiles do not exist to older versions!**

src/ARMeilleure/Translation/PTC/Ptc.cs

@@ -3,6 +3,7 @@ using ARMeilleure.CodeGen.Linking;
 using ARMeilleure.CodeGen.Unwinding;
 using ARMeilleure.Common;
 using ARMeilleure.Memory;
+using ARMeilleure.State;
 using Ryujinx.Common;
 using Ryujinx.Common.Configuration;
 using Ryujinx.Common.Logging;
@@ -30,8 +31,8 @@ namespace ARMeilleure.Translation.PTC
     {
         private const string OuterHeaderMagicString = "PTCohd\0\0";
         private const string InnerHeaderMagicString = "PTCihd\0\0";
-        
-        private const uint InternalVersion = 6998; //! To be incremented manually for each change to the ARMeilleure project.
+
+        private const uint InternalVersion = 7007; //! To be incremented manually for each change to the ARMeilleure project.
 
         private const string ActualDir = "0";
         private const string BackupDir = "1";
@@ -184,6 +185,36 @@ namespace ARMeilleure.Translation.PTC
             InitializeCarriers();
         }
 
+        private bool ContainsBlacklistedFunctions()
+        {
+            List<ulong> blacklist = Profiler.GetBlacklistedFunctions();
+            bool containsBlacklistedFunctions = false;
+            _infosStream.Seek(0L, SeekOrigin.Begin);
+            bool foundBadFunction = false;
+
+            for (int index = 0; index < GetEntriesCount(); index++)
+            {
+                InfoEntry infoEntry = DeserializeStructure<InfoEntry>(_infosStream);
+                foreach (ulong address in blacklist)
+                {
+                    if (infoEntry.Address == address)
+                    {
+                        containsBlacklistedFunctions = true;
+                        Logger.Warning?.Print(LogClass.Ptc, "PPTC cache invalidated: Found blacklisted functions in PPTC cache");
+                        foundBadFunction = true;
+                        break;
+                    }
+                }
+
+                if (foundBadFunction)
+                {
+                    break;
+                }
+            }
+
+            return containsBlacklistedFunctions;
+        }
+
         private void PreLoad()
         {
             string fileNameActual = $"{CachePathActual}.cache";
@@ -532,7 +563,7 @@ namespace ARMeilleure.Translation.PTC
 
         public void LoadTranslations(Translator translator)
         {
-            if (AreCarriersEmpty())
+            if (AreCarriersEmpty() || ContainsBlacklistedFunctions())
             {
                 return;
             }
@@ -835,10 +866,18 @@ namespace ARMeilleure.Translation.PTC
                 while (profiledFuncsToTranslate.TryDequeue(out (ulong address, PtcProfiler.FuncProfile funcProfile) item))
                 {
                     ulong address = item.address;
+                    ExecutionMode executionMode = item.funcProfile.Mode;
+                    bool highCq = item.funcProfile.HighCq;
 
                     Debug.Assert(Profiler.IsAddressInStaticCodeRange(address));
 
-                    TranslatedFunction func = translator.Translate(address, item.funcProfile.Mode, item.funcProfile.HighCq);
+                    TranslatedFunction func = translator.Translate(address, executionMode, highCq);
+
+                    if (func == null)
+                    {
+                        Profiler.UpdateEntry(address, executionMode, true, true);
+                        continue;
+                    }
 
                     bool isAddressUnique = translator.Functions.TryAdd(address, func.GuestSize, func);
 
@@ -885,7 +924,14 @@ namespace ARMeilleure.Translation.PTC
 
             PtcStateChanged?.Invoke(PtcLoadingState.Loaded, _translateCount, _translateTotalCount);
 
-            Logger.Info?.Print(LogClass.Ptc, $"{_translateCount} of {_translateTotalCount} functions translated | Thread count: {degreeOfParallelism} in {sw.Elapsed.TotalSeconds} s");
+            if (_translateCount == _translateTotalCount)
+            {
+                Logger.Info?.Print(LogClass.Ptc, $"{_translateCount} of {_translateTotalCount} functions translated | Thread count: {degreeOfParallelism} in {sw.Elapsed.TotalSeconds} s");
+            }
+            else
+            {
+                Logger.Info?.Print(LogClass.Ptc, $"{_translateCount} of {_translateTotalCount} functions translated | {_translateTotalCount - _translateCount} function{(_translateTotalCount - _translateCount != 1 ? "s" : "")} blacklisted | Thread count: {degreeOfParallelism} in {sw.Elapsed.TotalSeconds} s");
+            }
 
             Thread preSaveThread = new(PreSave)
             {

src/ARMeilleure/Translation/PTC/PtcProfiler.cs

@@ -24,11 +24,12 @@ namespace ARMeilleure.Translation.PTC
     {
         private const string OuterHeaderMagicString = "Pohd\0\0\0\0";
 
-        private const uint InternalVersion = 5518; //! Not to be incremented manually for each change to the ARMeilleure project.
+        private const uint InternalVersion = 7007; //! Not to be incremented manually for each change to the ARMeilleure project.
 
-        private static readonly uint[] _migrateInternalVersions =
+        private static readonly uint[] _migrateInternalVersions = 
         [
-            1866
+            1866,
+            5518,
         ];
 
         private const int SaveInterval = 30; // Seconds.
@@ -77,20 +78,30 @@ namespace ARMeilleure.Translation.PTC
         private void TimerElapsed(object _, ElapsedEventArgs __) 
             => new Thread(PreSave) { Name = "Ptc.DiskWriter" }.Start();
 
-        public void AddEntry(ulong address, ExecutionMode mode, bool highCq)
+        public void AddEntry(ulong address, ExecutionMode mode, bool highCq, bool blacklist = false)
         {
             if (IsAddressInStaticCodeRange(address))
             {
                 Debug.Assert(!highCq);
 
-                lock (_lock)
+                if (blacklist)
                 {
-                    ProfiledFuncs.TryAdd(address, new FuncProfile(mode, highCq: false));
+                    lock (_lock)
+                    {
+                        ProfiledFuncs[address] = new FuncProfile(mode, highCq: false, true);
+                    }
+                }
+                else
+                {
+                    lock (_lock)
+                    {
+                        ProfiledFuncs.TryAdd(address, new FuncProfile(mode, highCq: false, false));
+                    }
                 }
             }
         }
 
-        public void UpdateEntry(ulong address, ExecutionMode mode, bool highCq)
+        public void UpdateEntry(ulong address, ExecutionMode mode, bool highCq, bool? blacklist = null)
         {
             if (IsAddressInStaticCodeRange(address))
             {
@@ -100,7 +111,7 @@ namespace ARMeilleure.Translation.PTC
                 {
                     Debug.Assert(ProfiledFuncs.ContainsKey(address));
 
-                    ProfiledFuncs[address] = new FuncProfile(mode, highCq: true);
+                    ProfiledFuncs[address] = new FuncProfile(mode, highCq: true, blacklist ?? ProfiledFuncs[address].Blacklist);
                 }
             }
         }
@@ -116,7 +127,7 @@ namespace ARMeilleure.Translation.PTC
 
             foreach (KeyValuePair<ulong, FuncProfile> profiledFunc in ProfiledFuncs)
             {
-                if (!funcs.ContainsKey(profiledFunc.Key))
+                if (!funcs.ContainsKey(profiledFunc.Key) && !profiledFunc.Value.Blacklist)
                 {
                     profiledFuncsToTranslate.Enqueue((profiledFunc.Key, profiledFunc.Value));
                 }
@@ -131,6 +142,24 @@ namespace ARMeilleure.Translation.PTC
             ProfiledFuncs.TrimExcess();
         }
 
+        public List<ulong> GetBlacklistedFunctions()
+        {
+            List<ulong> funcs = new List<ulong>();
+
+            foreach (var profiledFunc in ProfiledFuncs)
+            {
+                if (profiledFunc.Value.Blacklist)
+                {
+                    if (!funcs.Contains(profiledFunc.Key))
+                    {
+                        funcs.Add(profiledFunc.Key);
+                    }
+                }
+            }
+
+            return funcs;
+        }
+
         public void PreLoad()
         {
             _lastHash = default;
@@ -221,13 +250,18 @@ namespace ARMeilleure.Translation.PTC
                     return false;
                 }
 
+                Func<ulong, FuncProfile, (ulong, FuncProfile)> migrateEntryFunc = null;
+
                 switch (outerHeader.InfoFileVersion)
                 {
                     case InternalVersion:
                         ProfiledFuncs = Deserialize(stream);
                         break;
                     case 1866:
-                        ProfiledFuncs = Deserialize(stream, (address, profile) => (address + 0x500000UL, profile));
+                        migrateEntryFunc = (address, profile) => (address + 0x500000UL, profile);
+                        goto case 5518;
+                    case 5518:
+                        ProfiledFuncs = DeserializeAddBlacklist(stream, migrateEntryFunc);
                         break;
                     default:
                         Logger.Error?.Print(LogClass.Ptc, $"No migration path for {nameof(outerHeader.InfoFileVersion)} '{outerHeader.InfoFileVersion}'. Discarding cache.");
@@ -257,6 +291,16 @@ namespace ARMeilleure.Translation.PTC
             return DeserializeDictionary<ulong, FuncProfile>(stream, DeserializeStructure<FuncProfile>);
         }
 
+        private static Dictionary<ulong, FuncProfile> DeserializeAddBlacklist(Stream stream, Func<ulong, FuncProfile, (ulong, FuncProfile)> migrateEntryFunc = null)
+        {
+            if (migrateEntryFunc != null)
+            {
+                return DeserializeAndUpdateDictionary(stream, (Stream stream) => { return new FuncProfile(DeserializeStructure<FuncProfilePreBlacklist>(stream)); }, migrateEntryFunc);
+            }
+
+            return DeserializeDictionary<ulong, FuncProfile>(stream, (Stream stream) => { return new FuncProfile(DeserializeStructure<FuncProfilePreBlacklist>(stream)); });
+        }
+
         private static ReadOnlySpan<byte> GetReadOnlySpan(MemoryStream memoryStream)
         {
             return new(memoryStream.GetBuffer(), (int)memoryStream.Position, (int)memoryStream.Length - (int)memoryStream.Position);
@@ -388,13 +432,35 @@ namespace ARMeilleure.Translation.PTC
             }
         }
 
-        [StructLayout(LayoutKind.Sequential, Pack = 1/*, Size = 5*/)]
+        [StructLayout(LayoutKind.Sequential, Pack = 1/*, Size = 6*/)]
         public struct FuncProfile
+        {
+            public ExecutionMode Mode;
+            public bool HighCq;
+            public bool Blacklist;
+
+            public FuncProfile(ExecutionMode mode, bool highCq, bool blacklist)
+            {
+                Mode = mode;
+                HighCq = highCq;
+                Blacklist = blacklist;
+            }
+
+            public FuncProfile(FuncProfilePreBlacklist fp)
+            {
+                Mode = fp.Mode;
+                HighCq = fp.HighCq;
+                Blacklist = false;
+            }
+        }
+
+        [StructLayout(LayoutKind.Sequential, Pack = 1/*, Size = 5*/)]
+        public struct FuncProfilePreBlacklist
         {
             public ExecutionMode Mode;
             public bool HighCq;
 
-            public FuncProfile(ExecutionMode mode, bool highCq)
+            public FuncProfilePreBlacklist(ExecutionMode mode, bool highCq)
             {
                 Mode = mode;
                 HighCq = highCq;

src/ARMeilleure/Translation/Translator.cs

@@ -249,6 +249,11 @@ namespace ARMeilleure.Translation
 
             ControlFlowGraph cfg = EmitAndGetCFG(context, blocks, out Range funcRange, out Counter<uint> counter);
 
+            if (cfg == null)
+            {
+                return null;
+            }
+
             ulong funcSize = funcRange.End - funcRange.Start;
 
             Logger.EndPass(PassName.Translation, cfg);
@@ -407,6 +412,11 @@ namespace ARMeilleure.Translation
                         if (opCode.Instruction.Emitter != null)
                         {
                             opCode.Instruction.Emitter(context);
+                            if (opCode.Instruction.Name == InstName.Und && blkIndex == 0)
+                            {
+                                range = new Range(rangeStart, rangeEnd);
+                                return null;
+                            }
                         }
                         else
                         {

src/Ryujinx.HLE/HOS/ArmProcessContextFactory.cs

@@ -20,6 +20,7 @@ namespace Ryujinx.HLE.HOS
         private readonly string _titleIdText;
         private readonly string _displayVersion;
         private readonly bool _diskCacheEnabled;
+        private readonly string _diskCacheSelector;
         private readonly ulong _codeAddress;
         private readonly ulong _codeSize;
 
@@ -31,6 +32,7 @@ namespace Ryujinx.HLE.HOS
             string titleIdText,
             string displayVersion,
             bool diskCacheEnabled,
+            string diskCacheSelector,
             ulong codeAddress,
             ulong codeSize)
         {
@@ -39,6 +41,7 @@ namespace Ryujinx.HLE.HOS
             _titleIdText = titleIdText;
             _displayVersion = displayVersion;
             _diskCacheEnabled = diskCacheEnabled;
+            _diskCacheSelector = diskCacheSelector;
             _codeAddress = codeAddress;
             _codeSize = codeSize;
         }
@@ -114,7 +117,7 @@ namespace Ryujinx.HLE.HOS
                 }
             }
 
-            DiskCacheLoadState = processContext.Initialize(_titleIdText, _displayVersion, _diskCacheEnabled, _codeAddress, _codeSize, "default"); //Ready for exefs profiles
+            DiskCacheLoadState = processContext.Initialize(_titleIdText, _displayVersion, _diskCacheEnabled, _codeAddress, _codeSize, _diskCacheSelector ?? "default");
 
             return processContext;
         }

src/Ryujinx.HLE/HOS/ModLoader.cs

@@ -6,6 +6,7 @@ using LibHac.Loader;
 using LibHac.Tools.Fs;
 using LibHac.Tools.FsSystem;
 using LibHac.Tools.FsSystem.RomFs;
+using LibHac.Util;
 using Ryujinx.Common.Configuration;
 using Ryujinx.Common.Logging;
 using Ryujinx.Common.Utilities;
@@ -19,6 +20,7 @@ using System.Collections.Specialized;
 using System.Globalization;
 using System.IO;
 using System.Linq;
+using System.Security.Cryptography;
 using LazyFile = Ryujinx.HLE.HOS.Services.Fs.FileSystemProxy.LazyFile;
 using Path = System.IO.Path;
 
@@ -581,6 +583,7 @@ namespace Ryujinx.HLE.HOS
             public BitVector32 Stubs;
             public BitVector32 Replaces;
             public MetaLoader Npdm;
+            public string Hash;
 
             public bool Modified => (Stubs.Data | Replaces.Data) != 0;
         }
@@ -591,8 +594,11 @@ namespace Ryujinx.HLE.HOS
             {
                 Stubs = new BitVector32(),
                 Replaces = new BitVector32(),
+                Hash = null,
             };
 
+            string tempHash = string.Empty;
+
             if (!_appMods.TryGetValue(applicationId, out ModCache mods) || mods.ExefsDirs.Count == 0)
             {
                 return modLoadResult;
@@ -628,8 +634,16 @@ namespace Ryujinx.HLE.HOS
 
                         modLoadResult.Replaces[1 << i] = true;
 
-                        nsos[i] = new NsoExecutable(nsoFile.OpenRead().AsStorage(), nsoName);
-                        Logger.Info?.Print(LogClass.ModLoader, $"NSO '{nsoName}' replaced");
+                        using (FileStream stream = nsoFile.OpenRead())
+                        {
+                            nsos[i] = new NsoExecutable(stream.AsStorage(), nsoName);
+                            Logger.Info?.Print(LogClass.ModLoader, $"NSO '{nsoName}' replaced");
+                            using (MD5 md5 = MD5.Create())
+                            {
+                                stream.Seek(0, SeekOrigin.Begin);
+                                tempHash += BitConverter.ToString(md5.ComputeHash(stream)).Replace("-", "").ToLowerInvariant();
+                            }
+                        }
                     }
 
                     modLoadResult.Stubs[1 << i] |= File.Exists(Path.Combine(mod.Path.FullName, nsoName + StubExtension));
@@ -661,6 +675,14 @@ namespace Ryujinx.HLE.HOS
                 }
             }
 
+            if (!string.IsNullOrEmpty(tempHash))
+            {
+                using (MD5 md5 = MD5.Create())
+                {
+                    modLoadResult.Hash += BitConverter.ToString(md5.ComputeHash(tempHash.ToBytes())).Replace("-", "").ToLowerInvariant();
+                }
+            }
+
             return modLoadResult;
         }
 

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

@@ -84,13 +84,6 @@ namespace Ryujinx.HLE.Loaders.Processes.Extensions
             // Apply Nsos patches.
             device.Configuration.VirtualFileSystem.ModLoader.ApplyNsoPatches(programId, nsoExecutables);
 
-            // Don't use PTC if ExeFS files have been replaced.
-            bool enablePtc = device.System.EnablePtc && !modLoadResult.Modified;
-            if (!enablePtc)
-            {
-                Logger.Warning?.Print(LogClass.Ptc, "Detected unsupported ExeFs modifications. PTC disabled.");
-            }
-
             string programName = string.Empty;
 
             if (!isHomebrew && programId > 0x010000000000FFFF)
@@ -117,7 +110,8 @@ namespace Ryujinx.HLE.Loaders.Processes.Extensions
                 device.System.KernelContext,
                 metaLoader,
                 nacpData,
-                enablePtc,
+                device.System.EnablePtc,
+                modLoadResult.Hash,
                 true,
                 programName,
                 metaLoader.GetProgramId(),

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

@@ -235,6 +235,7 @@ namespace Ryujinx.HLE.Loaders.Processes
                                                                        dummyExeFs.GetNpdm(),
                                                                        nacpData,
                                                                        diskCacheEnabled: false,
+                                                                       diskCacheSelector: null,
                                                                        allowCodeMemoryForJit: true,
                                                                        programName,
                                                                        programId,

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

@@ -186,6 +186,7 @@ namespace Ryujinx.HLE.Loaders.Processes
                 string.Empty,
                 string.Empty,
                 false,
+                null,
                 codeAddress,
                 codeSize);
 
@@ -226,6 +227,7 @@ namespace Ryujinx.HLE.Loaders.Processes
             MetaLoader metaLoader,
             BlitStruct<ApplicationControlProperty> applicationControlProperties,
             bool diskCacheEnabled,
+            string diskCacheSelector,
             bool allowCodeMemoryForJit,
             string name,
             ulong programId,
@@ -379,6 +381,7 @@ namespace Ryujinx.HLE.Loaders.Processes
                 $"{programId:x16}",
                 displayVersion,
                 diskCacheEnabled,
+                diskCacheSelector,
                 codeStart,
                 codeSize);
 

src/Ryujinx/Assets/locales.json

@@ -2022,6 +2022,56 @@
         "zh_TW": "下一次啟動遊戲時，觸發 PPTC 進行重建"
       }
     },
+    {
+      "ID": "GameListContextMenuCacheManagementNukePptc",
+      "Translations": {
+        "ar_SA": "",
+        "de_DE": "",
+        "el_GR": "",
+        "en_US": "Purge PPTC cache",
+        "es_ES": "",
+        "fr_FR": "",
+        "he_IL": "",
+        "it_IT": "",
+        "ja_JP": "",
+        "ko_KR": "",
+        "no_NO": "",
+        "pl_PL": "",
+        "pt_BR": "",
+        "ru_RU": "",
+        "sv_SE": "",
+        "th_TH": "",
+        "tr_TR": "",
+        "uk_UA": "",
+        "zh_CN": "",
+        "zh_TW": ""
+      }
+    },
+    {
+      "ID": "GameListContextMenuCacheManagementNukePptcToolTip",
+      "Translations": {
+        "ar_SA": "",
+        "de_DE": "",
+        "el_GR": "",
+        "en_US": "Deletes all PPTC cache files for the Application",
+        "es_ES": "",
+        "fr_FR": "",
+        "he_IL": "",
+        "it_IT": "",
+        "ja_JP": "",
+        "ko_KR": "",
+        "no_NO": "",
+        "pl_PL": "",
+        "pt_BR": "",
+        "ru_RU": "",
+        "sv_SE": "",
+        "th_TH": "",
+        "tr_TR": "",
+        "uk_UA": "",
+        "zh_CN": "",
+        "zh_TW": ""
+      }
+    },
     {
       "ID": "GameListContextMenuCacheManagementPurgeShaderCache",
       "Translations": {
@@ -12947,6 +12997,31 @@
         "zh_TW": "在 {0} 清除 PPTC 快取時出錯: {1}"
       }
     },
+    {
+      "ID": "DialogPPTCNukeMessage",
+      "Translations": {
+        "ar_SA": "",
+        "de_DE": "",
+        "el_GR": "",
+        "en_US": "You are about to purge all PPTC data from:\n\n{0}\n\nAre you sure you want to proceed?",
+        "es_ES": "",
+        "fr_FR": "",
+        "he_IL": "",
+        "it_IT": "",
+        "ja_JP": "",
+        "ko_KR": "",
+        "no_NO": "",
+        "pl_PL": "",
+        "pt_BR": "",
+        "ru_RU": "",
+        "sv_SE": "",
+        "th_TH": "",
+        "tr_TR": "",
+        "uk_UA": "",
+        "zh_CN": "",
+        "zh_TW": ""
+      }
+    },
     {
       "ID": "DialogShaderDeletionMessage",
       "Translations": {

src/Ryujinx/UI/Controls/ApplicationContextMenu.axaml

@@ -81,6 +81,11 @@
             Header="{ext:Locale GameListContextMenuCacheManagementPurgePptc}"
             Icon="{ext:Icon mdi-refresh}"
             ToolTip.Tip="{ext:Locale GameListContextMenuCacheManagementPurgePptcToolTip}" />
+        <MenuItem
+            Click="NukePtcCache_Click"
+            Header="{ext:Locale GameListContextMenuCacheManagementNukePptc}"
+            Icon="{ext:Icon mdi-delete-alert}"
+            ToolTip.Tip="{ext:Locale GameListContextMenuCacheManagementNukePptcToolTip}" />
         <MenuItem
             Click="PurgeShaderCache_Click"
             Header="{ext:Locale GameListContextMenuCacheManagementPurgeShaderCache}"

src/Ryujinx/UI/Controls/ApplicationContextMenu.axaml.cs

@@ -175,6 +175,52 @@ namespace Ryujinx.Ava.UI.Controls
             }
         }
 
+        public async void NukePtcCache_Click(object sender, RoutedEventArgs args)
+        {
+            if (sender is not MenuItem { DataContext: MainWindowViewModel { SelectedApplication: not null } viewModel })
+                return;
+
+            UserResult result = await ContentDialogHelper.CreateLocalizedConfirmationDialog(
+                LocaleManager.Instance[LocaleKeys.DialogWarning],
+                LocaleManager.Instance.UpdateAndGetDynamicValue(LocaleKeys.DialogPPTCNukeMessage, viewModel.SelectedApplication.Name)
+            );
+
+            if (result == UserResult.Yes)
+            {
+                DirectoryInfo mainDir = new(Path.Combine(AppDataManager.GamesDirPath, viewModel.SelectedApplication.IdString, "cache", "cpu", "0"));
+                DirectoryInfo backupDir = new(Path.Combine(AppDataManager.GamesDirPath, viewModel.SelectedApplication.IdString, "cache", "cpu", "1"));
+
+                List<FileInfo> cacheFiles = new();
+
+                if (mainDir.Exists)
+                {
+                    cacheFiles.AddRange(mainDir.EnumerateFiles("*.cache"));
+                    cacheFiles.AddRange(mainDir.EnumerateFiles("*.info"));
+                }
+
+                if (backupDir.Exists)
+                {
+                    cacheFiles.AddRange(backupDir.EnumerateFiles("*.cache"));
+                    cacheFiles.AddRange(mainDir.EnumerateFiles("*.info"));
+                }
+
+                if (cacheFiles.Count > 0)
+                {
+                    foreach (FileInfo file in cacheFiles)
+                    {
+                        try
+                        {
+                            file.Delete();
+                        }
+                        catch (Exception ex)
+                        {
+                            await ContentDialogHelper.CreateErrorDialog(LocaleManager.Instance.UpdateAndGetDynamicValue(LocaleKeys.DialogPPTCDeletionErrorMessage, file.Name, ex));
+                        }
+                    }
+                }
+            }
+        }
+
         public async void PurgeShaderCache_Click(object sender, RoutedEventArgs args)
         {
             if (sender is not MenuItem { DataContext: MainWindowViewModel { SelectedApplication: not null } viewModel })