Files
UnrealEngineUWP/Engine/Plugins/Runtime/Metasound/Source/MetasoundEngine/Private/MetasoundAssetSubsystem.cpp
Matt Peters 7bbd3c4bf0 Cooker,AssetRegistry,AssetManager: Remove deprecation handling for fields deprecated in 5.1 and earlier.
Make AssetManager required; engine startup gives a fatal error if AssetManager is not present.
#rn Minor, Cooking
#rb Zousar.Shaker
#preflight 63ffd322df66ed5fc11d963e

[CL 24493164 by Matt Peters in ue5-main branch]
2023-03-02 19:37:50 -05:00

720 lines
23 KiB
C++

// Copyright Epic Games, Inc. All Rights Reserved.
#include "MetasoundAssetSubsystem.h"
#include "Algo/Sort.h"
#include "Algo/Transform.h"
#include "AssetRegistry/AssetRegistryModule.h"
#include "Async/Async.h"
#include "Engine/AssetManager.h"
#include "Metasound.h"
#include "MetasoundAssetBase.h"
#include "MetasoundFrontendDocument.h"
#include "MetasoundFrontendRegistries.h"
#include "MetasoundFrontendTransform.h"
#include "MetasoundSettings.h"
#include "MetasoundSource.h"
#include "MetasoundTrace.h"
#include "MetasoundUObjectRegistry.h"
#include "Misc/CoreDelegates.h"
#include "UObject/NoExportTypes.h"
#include UE_INLINE_GENERATED_CPP_BY_NAME(MetasoundAssetSubsystem)
namespace Metasound
{
namespace AssetSubsystemPrivate
{
bool GetAssetClassInfo(const FAssetData& InAssetData, Frontend::FNodeClassInfo& OutInfo)
{
using namespace Metasound;
using namespace Metasound::Frontend;
bool bSuccess = true;
OutInfo.Type = EMetasoundFrontendClassType::External;
OutInfo.AssetPath = InAssetData.GetSoftObjectPath();
FString AssetClassID;
bSuccess &= InAssetData.GetTagValue(AssetTags::AssetClassID, AssetClassID);
OutInfo.AssetClassID = FGuid(AssetClassID);
OutInfo.ClassName = FMetasoundFrontendClassName(FName(), *AssetClassID, FName());
#if WITH_EDITORONLY_DATA
InAssetData.GetTagValue(AssetTags::IsPreset, OutInfo.bIsPreset);
#endif // WITH_EDITORONLY_DATA
int32 RegistryVersionMajor = 0;
bSuccess &= InAssetData.GetTagValue(AssetTags::RegistryVersionMajor, RegistryVersionMajor);
OutInfo.Version.Major = RegistryVersionMajor;
int32 RegistryVersionMinor = 0;
bSuccess &= InAssetData.GetTagValue(AssetTags::RegistryVersionMinor, RegistryVersionMinor);
OutInfo.Version.Minor = RegistryVersionMinor;
#if WITH_EDITORONLY_DATA
auto ParseTypesString = [&](const FName AssetTag, TSet<FName>& OutTypes)
{
FString TypesString;
if (InAssetData.GetTagValue(AssetTag, TypesString))
{
TArray<FString> DataTypeStrings;
TypesString.ParseIntoArray(DataTypeStrings, *AssetTags::ArrayDelim);
Algo::Transform(DataTypeStrings, OutTypes, [](const FString& DataType) { return *DataType; });
return true;
}
return false;
};
// These values are optional and not necessary to return successfully as MetaSounds
// don't require inputs or outputs for asset tags to be valid (ex. a new MetaSound,
// non-source asset has no inputs or outputs)
OutInfo.InputTypes.Reset();
ParseTypesString(AssetTags::RegistryInputTypes, OutInfo.InputTypes);
OutInfo.OutputTypes.Reset();
ParseTypesString(AssetTags::RegistryOutputTypes, OutInfo.OutputTypes);
#endif // WITH_EDITORONLY_DATA
return bSuccess;
}
// Remove the Map entry only if the key and value are equal.
//
// This protects against scenarios where a metasound is renamed or moved
// and the new entry was being erroneously removed from the PathMap
bool RemoveIfExactMatch(TMap<Frontend::FNodeRegistryKey, FSoftObjectPath>& InMap, const Frontend::FNodeRegistryKey& InKeyToRemove, const FSoftObjectPath& InPathToRemove)
{
if (const FSoftObjectPath* Path = InMap.Find(InKeyToRemove))
{
if (*Path == InPathToRemove)
{
InMap.Remove(InKeyToRemove);
return true;
}
else
{
UE_LOG(LogMetaSound, VeryVerbose, TEXT("Object paths do not match. Skipping removal of %s:%s from the asset subsystem."), *InKeyToRemove, *InPathToRemove.ToString());
}
}
return false;
}
}
}
void UMetaSoundAssetSubsystem::Initialize(FSubsystemCollectionBase& InCollection)
{
using namespace Metasound::Frontend;
IMetaSoundAssetManager::Set(*this);
FCoreDelegates::OnPostEngineInit.AddUObject(this, &UMetaSoundAssetSubsystem::PostEngineInit);
}
void UMetaSoundAssetSubsystem::PostEngineInit()
{
check(UAssetManager::IsInitialized());
UAssetManager& AssetManager = UAssetManager::Get();
AssetManager.CallOrRegister_OnCompletedInitialScan(FSimpleMulticastDelegate::FDelegate::CreateUObject(this, &UMetaSoundAssetSubsystem::PostInitAssetScan));
RebuildDenyListCache(AssetManager);
}
void UMetaSoundAssetSubsystem::PostInitAssetScan()
{
METASOUND_TRACE_CPUPROFILER_EVENT_SCOPE(UMetaSoundAssetSubsystem::PostInitAssetScan);
const UMetaSoundSettings* Settings = GetDefault<UMetaSoundSettings>();
if (ensureAlways(Settings))
{
SearchAndIterateDirectoryAssets(Settings->DirectoriesToRegister, [this](const FAssetData& AssetData)
{
AddOrUpdateAsset(AssetData);
});
}
bIsInitialAssetScanComplete = true;
}
#if WITH_EDITORONLY_DATA
void UMetaSoundAssetSubsystem::AddAssetReferences(FMetasoundAssetBase& InAssetBase)
{
using namespace Metasound;
using namespace Metasound::Frontend;
const FNodeClassInfo AssetClassInfo = InAssetBase.GetAssetClassInfo();
const FNodeRegistryKey AssetClassKey = NodeRegistryKey::CreateKey(AssetClassInfo);
if (!ContainsKey(AssetClassKey))
{
AddOrUpdateAsset(*InAssetBase.GetOwningAsset());
UE_LOG(LogMetaSound, Verbose, TEXT("Adding asset '%s' to MetaSoundAsset registry."), *InAssetBase.GetOwningAssetName());
}
bool bAddFromReferencedAssets = false;
const TSet<FString>& ReferencedAssetClassKeys = InAssetBase.GetReferencedAssetClassKeys();
for (const FString& ReferencedAssetClassKey : ReferencedAssetClassKeys)
{
if (!ContainsKey(ReferencedAssetClassKey))
{
UE_LOG(LogMetaSound, Verbose, TEXT("Missing referenced class '%s' asset entry."), *ReferencedAssetClassKey);
bAddFromReferencedAssets = true;
}
}
// All keys are loaded
if (!bAddFromReferencedAssets)
{
return;
}
UE_LOG(LogMetaSound, Verbose, TEXT("Attempting preemptive reference load..."));
TArray<FMetasoundAssetBase*> ReferencedAssets = InAssetBase.GetReferencedAssets();
for (FMetasoundAssetBase* Asset : ReferencedAssets)
{
if (Asset)
{
FNodeClassInfo ClassInfo = Asset->GetAssetClassInfo();
const FNodeRegistryKey ClassKey = NodeRegistryKey::CreateKey(ClassInfo);
if (!ContainsKey(ClassKey))
{
UE_LOG(LogMetaSound, Verbose,
TEXT("Preemptive load of class '%s' due to early "
"registration request (asset scan likely not complete)."),
*ClassKey);
UObject* MetaSoundObject = Asset->GetOwningAsset();
if (ensureAlways(MetaSoundObject))
{
AddOrUpdateAsset(*MetaSoundObject);
}
}
}
else
{
UE_LOG(LogMetaSound, Warning, TEXT("Null referenced dependent asset in %s. Resaving asset in editor may fix the issue"), *InAssetBase.GetOwningAssetName());
}
}
}
#endif
Metasound::Frontend::FNodeRegistryKey UMetaSoundAssetSubsystem::AddOrUpdateAsset(const UObject& InObject)
{
using namespace Metasound;
using namespace Metasound::AssetSubsystemPrivate;
using namespace Metasound::Frontend;
METASOUND_TRACE_CPUPROFILER_EVENT_SCOPE(UMetaSoundAssetSubsystem::AddOrUpdateAsset);
const FMetasoundAssetBase* MetaSoundAsset = Metasound::IMetasoundUObjectRegistry::Get().GetObjectAsAssetBase(&InObject);
check(MetaSoundAsset);
FNodeClassInfo ClassInfo = MetaSoundAsset->GetAssetClassInfo();
const FNodeRegistryKey RegistryKey = NodeRegistryKey::CreateKey(ClassInfo);
if (NodeRegistryKey::IsValid(RegistryKey))
{
PathMap.FindOrAdd(RegistryKey) = InObject.GetPathName();
}
return RegistryKey;
}
Metasound::Frontend::FNodeRegistryKey UMetaSoundAssetSubsystem::AddOrUpdateAsset(const FAssetData& InAssetData)
{
using namespace Metasound;
using namespace Metasound::AssetSubsystemPrivate;
using namespace Metasound::Frontend;
METASOUND_TRACE_CPUPROFILER_EVENT_SCOPE(UMetaSoundAssetSubsystem::AddOrUpdateAsset);
FNodeClassInfo ClassInfo;
bool bClassInfoFound = GetAssetClassInfo(InAssetData, ClassInfo);
if (!bClassInfoFound)
{
UObject* Object = nullptr;
FSoftObjectPath Path = InAssetData.ToSoftObjectPath();
if (!FPackageName::GetPackageMountPoint(InAssetData.GetObjectPathString()).IsNone())
{
if (InAssetData.IsAssetLoaded())
{
Object = Path.ResolveObject();
UE_LOG(LogMetaSound, Verbose, TEXT("Adding loaded asset '%s' to MetaSoundAsset registry."), *Object->GetName());
}
else
{
Object = Path.TryLoad();
UE_LOG(LogMetaSound, Verbose, TEXT("Loaded asset '%s' and adding to MetaSoundAsset registry."), *Object->GetName());
}
}
if (Object)
{
return AddOrUpdateAsset(*Object);
}
}
if (ClassInfo.AssetClassID.IsValid())
{
const FNodeRegistryKey RegistryKey = NodeRegistryKey::CreateKey(ClassInfo);
if (NodeRegistryKey::IsValid(RegistryKey))
{
PathMap.FindOrAdd(RegistryKey) = InAssetData.GetSoftObjectPath();
}
return RegistryKey;
}
// Invalid ClassID means the node could not be registered.
// Let caller report or ensure as necessary.
return NodeRegistryKey::GetInvalid();
}
bool UMetaSoundAssetSubsystem::CanAutoUpdate(const FMetasoundFrontendClassName& InClassName) const
{
const UMetaSoundSettings* Settings = GetDefault<UMetaSoundSettings>();
if (!Settings->bAutoUpdateEnabled)
{
return false;
}
return !AutoUpdateDenyListCache.Contains(InClassName.GetFullName());
}
bool UMetaSoundAssetSubsystem::ContainsKey(const Metasound::Frontend::FNodeRegistryKey& InRegistryKey) const
{
return PathMap.Contains(InRegistryKey);
}
void UMetaSoundAssetSubsystem::RebuildDenyListCache(const UAssetManager& InAssetManager)
{
using namespace Metasound::Frontend;
const UMetaSoundSettings* Settings = GetDefault<UMetaSoundSettings>();
if (Settings->DenyListCacheChangeID == AutoUpdateDenyListChangeID)
{
return;
}
AutoUpdateDenyListCache.Reset();
for (const FMetasoundFrontendClassName& ClassName : Settings->AutoUpdateDenylist)
{
AutoUpdateDenyListCache.Add(ClassName.GetFullName());
}
check(UAssetManager::IsInitialized());
UAssetManager& AssetManager = UAssetManager::Get();
for (const FDefaultMetaSoundAssetAutoUpdateSettings& UpdateSettings : Settings->AutoUpdateAssetDenylist)
{
FAssetData AssetData;
if (AssetManager.GetAssetDataForPath(UpdateSettings.MetaSound, AssetData))
{
FString AssetClassID;
if (AssetData.GetTagValue(AssetTags::AssetClassID, AssetClassID))
{
const FMetasoundFrontendClassName ClassName = { FName(), *AssetClassID, FName() };
AutoUpdateDenyListCache.Add(ClassName.GetFullName());
}
}
}
AutoUpdateDenyListChangeID = Settings->DenyListCacheChangeID;
}
#if WITH_EDITOR
TSet<UMetaSoundAssetSubsystem::FAssetInfo> UMetaSoundAssetSubsystem::GetReferencedAssetClasses(const FMetasoundAssetBase& InAssetBase) const
{
METASOUND_TRACE_CPUPROFILER_EVENT_SCOPE(UMetaSoundAssetSubsystem::GetReferencedAssetClasses);
using namespace Metasound::Frontend;
if (!bIsInitialAssetScanComplete)
{
UE_LOG(LogMetaSound, Warning, TEXT("Attempt to get registered dependent assets for %s before asset scan is complete may result in missed dependencies"), *InAssetBase.GetOwningAssetName());
}
TSet<FAssetInfo> OutAssetInfos;
const FMetasoundFrontendDocument& Document = InAssetBase.GetDocumentChecked();
for (const FMetasoundFrontendClass& Class : Document.Dependencies)
{
const FNodeRegistryKey Key = NodeRegistryKey::CreateKey(Class.Metadata);
if (const FSoftObjectPath* ObjectPath = PathMap.Find(Key))
{
OutAssetInfos.Add(FAssetInfo{Key, *ObjectPath});
}
}
return MoveTemp(OutAssetInfos);
}
#endif
void UMetaSoundAssetSubsystem::RescanAutoUpdateDenyList()
{
check(UAssetManager::IsInitialized());
RebuildDenyListCache(UAssetManager::Get());
}
FMetasoundAssetBase* UMetaSoundAssetSubsystem::TryLoadAssetFromKey(const Metasound::Frontend::FNodeRegistryKey& RegistryKey) const
{
if (const FSoftObjectPath* ObjectPath = FindObjectPathFromKey(RegistryKey))
{
return TryLoadAsset(*ObjectPath);
}
return nullptr;
}
bool UMetaSoundAssetSubsystem::TryLoadReferencedAssets(const FMetasoundAssetBase& InAssetBase, TArray<FMetasoundAssetBase*>& OutReferencedAssets) const
{
using namespace Metasound::Frontend;
bool bSucceeded = true;
OutReferencedAssets.Reset();
TArray<FMetasoundAssetBase*> ReferencedAssets;
const TSet<FString>& AssetClassKeys = InAssetBase.GetReferencedAssetClassKeys();
for (const FNodeRegistryKey& Key : AssetClassKeys)
{
if (FMetasoundAssetBase* MetaSound = TryLoadAssetFromKey(Key))
{
OutReferencedAssets.Add(MetaSound);
}
else
{
UE_LOG(LogMetaSound, Error, TEXT("Failed to find referenced MetaSound asset with key '%s'"), *Key);
bSucceeded = false;
}
}
return bSucceeded;
}
void UMetaSoundAssetSubsystem::RequestAsyncLoadReferencedAssets(FMetasoundAssetBase& InAssetBase)
{
const TSet<FSoftObjectPath>& AsyncReferences = InAssetBase.GetAsyncReferencedAssetClassPaths();
if (AsyncReferences.Num() > 0)
{
if (UObject* OwningAsset = InAssetBase.GetOwningAsset())
{
TArray<FSoftObjectPath> PathsToLoad = AsyncReferences.Array();
// Protect against duplicate calls to async load assets.
if (FMetaSoundAsyncAssetDependencies* ExistingAsyncLoad = FindLoadingDependencies(OwningAsset))
{
if (ExistingAsyncLoad->Dependencies == PathsToLoad)
{
// early out since these are already actively being loaded.
return;
}
}
int32 AsyncLoadID = AsyncLoadIDCounter++;
auto AssetsLoadedDelegate = [this, AsyncLoadID]()
{
this->OnAssetsLoaded(AsyncLoadID);
};
// Store async loading data for use when async load is complete.
FMetaSoundAsyncAssetDependencies& AsyncDependencies = LoadingDependencies.AddDefaulted_GetRef();
AsyncDependencies.LoadID = AsyncLoadID;
AsyncDependencies.MetaSound = OwningAsset;
AsyncDependencies.Dependencies = PathsToLoad;
AsyncDependencies.StreamableHandle = StreamableManager.RequestAsyncLoad(PathsToLoad, AssetsLoadedDelegate);
}
else
{
UE_LOG(LogMetaSound, Error, TEXT("Cannot load async asset as FMetasoundAssetBase null owning UObject"), *InAssetBase.GetOwningAssetName());
}
}
}
void UMetaSoundAssetSubsystem::WaitUntilAsyncLoadReferencedAssetsComplete(FMetasoundAssetBase& InAssetBase)
{
TSet<FMetasoundAssetBase*> TransitiveReferences;
TArray<FMetasoundAssetBase*> TransitiveReferencesQueue;
TransitiveReferences.Add(&InAssetBase);
TransitiveReferencesQueue.Add(&InAssetBase);
while (!TransitiveReferencesQueue.IsEmpty())
{
FMetasoundAssetBase* Reference = TransitiveReferencesQueue.Pop();
UObject* OwningAsset = Reference->GetOwningAsset();
if (!OwningAsset)
{
continue;
}
while (FMetaSoundAsyncAssetDependencies* LoadingDependency = FindLoadingDependencies(OwningAsset))
{
// Grab shared ptr to handle as LoadingDependencies may be deleted and have it's shared pointer removed.
TSharedPtr<FStreamableHandle> StreamableHandle = LoadingDependency->StreamableHandle;
if (StreamableHandle.IsValid())
{
UE_LOG(LogMetaSound, Verbose, TEXT("Waiting on async load (id: %d) from asset %s"), LoadingDependency->LoadID, *InAssetBase.GetOwningAssetName());
EAsyncPackageState::Type LoadState = StreamableHandle->WaitUntilComplete();
if (EAsyncPackageState::Complete != LoadState)
{
UE_LOG(LogMetaSound, Error, TEXT("Failed to complete loading of async dependent assets from parent asset %s"), *InAssetBase.GetOwningAssetName());
RemoveLoadingDependencies(LoadingDependency->LoadID);
}
else
{
// This will remove the loading dependencies from internal storage
OnAssetsLoaded(LoadingDependency->LoadID);
}
// This will prevent OnAssetsLoaded from being called via the streamables
// internal delegate complete callback.
StreamableHandle->CancelHandle();
}
}
for (FMetasoundAssetBase* NextReference : Reference->GetReferencedAssets())
{
bool bAlreadyInSet;
TransitiveReferences.Add(NextReference, &bAlreadyInSet);
if (!bAlreadyInSet)
{
TransitiveReferencesQueue.Add(NextReference);
}
}
}
}
FMetaSoundAsyncAssetDependencies* UMetaSoundAssetSubsystem::FindLoadingDependencies(const UObject* InParentAsset)
{
auto IsEqualMetaSoundUObject = [InParentAsset](const FMetaSoundAsyncAssetDependencies& InDependencies) -> bool
{
return (InDependencies.MetaSound == InParentAsset);
};
return LoadingDependencies.FindByPredicate(IsEqualMetaSoundUObject);
}
FMetaSoundAsyncAssetDependencies* UMetaSoundAssetSubsystem::FindLoadingDependencies(int32 InLoadID)
{
auto IsEqualID = [InLoadID](const FMetaSoundAsyncAssetDependencies& InDependencies) -> bool
{
return (InDependencies.LoadID == InLoadID);
};
return LoadingDependencies.FindByPredicate(IsEqualID);
}
void UMetaSoundAssetSubsystem::RemoveLoadingDependencies(int32 InLoadID)
{
auto IsEqualID = [InLoadID](const FMetaSoundAsyncAssetDependencies& InDependencies) -> bool
{
return (InDependencies.LoadID == InLoadID);
};
LoadingDependencies.RemoveAllSwap(IsEqualID);
}
void UMetaSoundAssetSubsystem::OnAssetsLoaded(int32 InLoadID)
{
FMetaSoundAsyncAssetDependencies* LoadedDependencies = FindLoadingDependencies(InLoadID);
if (ensureMsgf(LoadedDependencies, TEXT("Call to async asset load complete with invalid IDs %d"), InLoadID))
{
if (LoadedDependencies->StreamableHandle.IsValid())
{
if (LoadedDependencies->MetaSound)
{
Metasound::IMetasoundUObjectRegistry& UObjectRegistry = Metasound::IMetasoundUObjectRegistry::Get();
FMetasoundAssetBase* ParentAssetBase = UObjectRegistry.GetObjectAsAssetBase(LoadedDependencies->MetaSound);
if (ensureMsgf(ParentAssetBase, TEXT("UClass of Parent MetaSound asset %s is not registered in metasound UObject Registery"), *LoadedDependencies->MetaSound->GetPathName()))
{
// Get all async loaded assets
TArray<UObject*> LoadedAssets;
LoadedDependencies->StreamableHandle->GetLoadedAssets(LoadedAssets);
// Cast UObjects to FMetaSoundAssetBase
TArray<FMetasoundAssetBase*> LoadedAssetBases;
for (UObject* AssetDependency : LoadedAssets)
{
if (AssetDependency)
{
FMetasoundAssetBase* AssetDependencyBase = UObjectRegistry.GetObjectAsAssetBase(AssetDependency);
if (ensure(AssetDependencyBase))
{
LoadedAssetBases.Add(AssetDependencyBase);
}
}
}
// Update parent asset with loaded assets.
ParentAssetBase->OnAsyncReferencedAssetsLoaded(LoadedAssetBases);
}
}
}
// Remove from active array of loading dependencies.
RemoveLoadingDependencies(InLoadID);
}
}
const FSoftObjectPath* UMetaSoundAssetSubsystem::FindObjectPathFromKey(const Metasound::Frontend::FNodeRegistryKey& InRegistryKey) const
{
return PathMap.Find(InRegistryKey);
}
FMetasoundAssetBase* UMetaSoundAssetSubsystem::TryLoadAsset(const FSoftObjectPath& InObjectPath) const
{
return Metasound::IMetasoundUObjectRegistry::Get().GetObjectAsAssetBase(InObjectPath.TryLoad());
}
void UMetaSoundAssetSubsystem::RemoveAsset(const UObject& InObject)
{
using namespace Metasound;
using namespace Metasound::Frontend;
if (const FMetasoundAssetBase* MetaSoundAsset = Metasound::IMetasoundUObjectRegistry::Get().GetObjectAsAssetBase(&InObject))
{
const FNodeClassInfo ClassInfo = MetaSoundAsset->GetAssetClassInfo();
FNodeRegistryKey RegistryKey = FMetasoundFrontendRegistryContainer::Get()->GetRegistryKey(ClassInfo);
AssetSubsystemPrivate::RemoveIfExactMatch(PathMap, RegistryKey, FSoftObjectPath(&InObject));
}
}
void UMetaSoundAssetSubsystem::RemoveAsset(const FAssetData& InAssetData)
{
using namespace Metasound;
using namespace Metasound::Frontend;
FNodeClassInfo ClassInfo;
if (ensureAlways(AssetSubsystemPrivate::GetAssetClassInfo(InAssetData, ClassInfo)))
{
FNodeRegistryKey RegistryKey = FMetasoundFrontendRegistryContainer::Get()->GetRegistryKey(ClassInfo);
AssetSubsystemPrivate::RemoveIfExactMatch(PathMap, RegistryKey, InAssetData.GetSoftObjectPath());
}
}
void UMetaSoundAssetSubsystem::RenameAsset(const FAssetData& InAssetData, bool bInReregisterWithFrontend)
{
auto PerformRename = [this, &InAssetData]()
{
RemoveAsset(InAssetData);
ResetAssetClassDisplayName(InAssetData);
AddOrUpdateAsset(InAssetData);
};
if (bInReregisterWithFrontend)
{
FMetasoundAssetBase* MetaSoundAsset = Metasound::IMetasoundUObjectRegistry::Get().GetObjectAsAssetBase(InAssetData.GetAsset());
check(MetaSoundAsset);
MetaSoundAsset->UnregisterGraphWithFrontend();
PerformRename();
MetaSoundAsset->RegisterGraphWithFrontend();
}
else
{
PerformRename();
}
}
void UMetaSoundAssetSubsystem::ResetAssetClassDisplayName(const FAssetData& InAssetData)
{
UObject* Object = nullptr;
FSoftObjectPath Path = InAssetData.GetSoftObjectPath();
if (InAssetData.IsAssetLoaded())
{
Object = Path.ResolveObject();
}
else
{
Object = Path.TryLoad();
}
FMetasoundAssetBase* MetaSoundAsset = Metasound::IMetasoundUObjectRegistry::Get().GetObjectAsAssetBase(Object);
check(MetaSoundAsset);
FMetasoundFrontendGraphClass& Class = MetaSoundAsset->GetDocumentChecked().RootGraph;
#if WITH_EDITOR
Class.Metadata.SetDisplayName(FText());
#endif // WITH_EDITOR
}
void UMetaSoundAssetSubsystem::SearchAndIterateDirectoryAssets(const TArray<FDirectoryPath>& InDirectories, TFunctionRef<void(const FAssetData&)> InFunction)
{
if (InDirectories.IsEmpty())
{
return;
}
UAssetManager& AssetManager = UAssetManager::Get();
FAssetManagerSearchRules Rules;
for (const FDirectoryPath& Path : InDirectories)
{
Rules.AssetScanPaths.Add(*Path.Path);
}
Metasound::IMetasoundUObjectRegistry::Get().IterateRegisteredUClasses([&](UClass& RegisteredClass)
{
Rules.AssetBaseClass = &RegisteredClass;
TArray<FAssetData> MetaSoundAssets;
AssetManager.SearchAssetRegistryPaths(MetaSoundAssets, Rules);
for (const FAssetData& AssetData : MetaSoundAssets)
{
InFunction(AssetData);
}
});
}
void UMetaSoundAssetSubsystem::RegisterAssetClassesInDirectories(const TArray<FMetaSoundAssetDirectory>& InDirectories)
{
TArray<FDirectoryPath> Directories;
Algo::Transform(InDirectories, Directories, [](const FMetaSoundAssetDirectory& AssetDir) { return AssetDir.Directory; });
SearchAndIterateDirectoryAssets(Directories, [this](const FAssetData& AssetData)
{
AddOrUpdateAsset(AssetData);
FMetasoundAssetBase* MetaSoundAsset = Metasound::IMetasoundUObjectRegistry::Get().GetObjectAsAssetBase(AssetData.GetAsset());
check(MetaSoundAsset);
Metasound::Frontend::FMetaSoundAssetRegistrationOptions RegOptions;
if (const UMetaSoundSettings* Settings = GetDefault<UMetaSoundSettings>())
{
RegOptions.bAutoUpdateLogWarningOnDroppedConnection = Settings->bAutoUpdateLogWarningOnDroppedConnection;
}
MetaSoundAsset->RegisterGraphWithFrontend(RegOptions);
});
}
void UMetaSoundAssetSubsystem::UnregisterAssetClassesInDirectories(const TArray<FMetaSoundAssetDirectory>& InDirectories)
{
TArray<FDirectoryPath> Directories;
Algo::Transform(InDirectories, Directories, [](const FMetaSoundAssetDirectory& AssetDir) { return AssetDir.Directory; });
SearchAndIterateDirectoryAssets(Directories, [this](const FAssetData& AssetData)
{
using namespace Metasound;
using namespace Metasound::Frontend;
if (AssetData.IsAssetLoaded())
{
FMetasoundAssetBase* MetaSoundAsset = Metasound::IMetasoundUObjectRegistry::Get().GetObjectAsAssetBase(AssetData.GetAsset());
check(MetaSoundAsset);
MetaSoundAsset->UnregisterGraphWithFrontend();
RemoveAsset(AssetData);
}
else
{
FNodeClassInfo AssetClassInfo;
if (ensureAlways(AssetSubsystemPrivate::GetAssetClassInfo(AssetData, AssetClassInfo)))
{
const FNodeRegistryKey RegistryKey = NodeRegistryKey::CreateKey(AssetClassInfo);
const bool bIsRegistered = FMetasoundFrontendRegistryContainer::Get()->IsNodeRegistered(RegistryKey);
if (bIsRegistered)
{
FMetasoundFrontendRegistryContainer::Get()->UnregisterNode(RegistryKey);
AssetSubsystemPrivate::RemoveIfExactMatch(PathMap, RegistryKey, AssetData.GetSoftObjectPath());
}
}
}
});
}