void FDesktopPlatformWindows::EnumerateEngineInstallations(TMap<FString, FString> &OutInstallations)
{
// Enumerate the binary installations
EnumerateLauncherEngineInstallations(OutInstallations);
// Enumerate the per-user installations
HKEY hKey;
if (RegOpenKeyEx(HKEY_CURRENT_USER, InstallationsSubKey, 0, KEY_ALL_ACCESS, &hKey) == ERROR_SUCCESS)
{
// Get a list of all the directories
TArray<FString> UniqueDirectories;
OutInstallations.GenerateValueArray(UniqueDirectories);
// Enumerate all the installations
TArray<FString> InvalidKeys;
for (::DWORD Index = 0;; Index++)
{
TCHAR ValueName[256];
TCHAR ValueData[MAX_PATH];
::DWORD ValueType = 0;
::DWORD ValueNameLength = sizeof(ValueName) / sizeof(ValueName[0]);
::DWORD ValueDataSize = sizeof(ValueData);
LRESULT Result = RegEnumValue(hKey, Index, ValueName, &ValueNameLength, NULL, &ValueType, (BYTE*)&ValueData[0], &ValueDataSize);
if(Result == ERROR_SUCCESS)
{
int32 ValueDataLength = ValueDataSize / sizeof(TCHAR);
if(ValueDataLength > 0 && ValueData[ValueDataLength - 1] == 0) ValueDataLength--;
FString NormalizedInstalledDirectory(ValueDataLength, ValueData);
FPaths::NormalizeDirectoryName(NormalizedInstalledDirectory);
FPaths::CollapseRelativeDirectories(NormalizedInstalledDirectory);
if(IsValidRootDirectory(NormalizedInstalledDirectory) && !UniqueDirectories.Contains(NormalizedInstalledDirectory))
{
OutInstallations.Add(ValueName, NormalizedInstalledDirectory);
UniqueDirectories.Add(NormalizedInstalledDirectory);
}
else
{
InvalidKeys.Add(ValueName);
}
}
else if(Result == ERROR_NO_MORE_ITEMS)
{
break;
}
}
// Remove all the keys which weren't valid
for(const FString InvalidKey: InvalidKeys)
{
RegDeleteValue(hKey, *InvalidKey);
}
RegCloseKey(hKey);
}
}
//
// Empty the loaders.
//
void ResetLoaders( UObject* InPkg )
{
// Make sure we're not in the middle of loading something in the background.
FlushAsyncLoading();
// Top level package to reset loaders for.
UObject* TopLevelPackage = InPkg ? InPkg->GetOutermost() : NULL;
// Find loader/ linker associated with toplevel package. We do this upfront as Detach resets LinkerRoot.
if( TopLevelPackage )
{
// Linker to reset/ detach.
ULinkerLoad* LinkerToReset = ULinkerLoad::FindExistingLinkerForPackage(CastChecked<UPackage>(TopLevelPackage));
if ( LinkerToReset )
{
for (TMap<UPackage*, ULinkerLoad*>::TIterator It(GObjLoaders); It; ++It)
{
ULinkerLoad* Linker = It.Value();
// Detach LinkerToReset from other linker's import table.
if( Linker->LinkerRoot != TopLevelPackage )
{
for( int32 j=0; j<Linker->ImportMap.Num(); j++ )
{
if( Linker->ImportMap[j].SourceLinker == LinkerToReset )
{
Linker->ImportMap[j].SourceLinker = NULL;
Linker->ImportMap[j].SourceIndex = INDEX_NONE;
}
}
}
else
{
check(Linker == LinkerToReset);
}
}
// Detach linker, also removes from array and sets LinkerRoot to NULL.
LinkerToReset->Detach(true);
}
}
else
{
TArray<ULinkerLoad *> LinkersToDetach;
GObjLoaders.GenerateValueArray(LinkersToDetach);
for (int32 Index = 0; Index < LinkersToDetach.Num(); Index++)
{
ULinkerLoad* Linker = LinkersToDetach[Index];
// Detach linker, also removes from array and sets LinkerRoot to NULL.
Linker->Detach(true);
}
}
}
void FBlueprintCompileReinstancer::ReplaceInstancesOfClass(UClass* OldClass, UClass* NewClass, UObject* OriginalCDO, TSet<UObject*>* ObjectsThatShouldUseOldStuff)
{
USelection* SelectedActors;
bool bSelectionChanged = false;
TArray<UObject*> ObjectsToReplace;
const bool bLogConversions = false; // for debugging
// Map of old objects to new objects
TMap<UObject*, UObject*> OldToNewInstanceMap;
TMap<UClass*, UClass*> OldToNewClassMap;
OldToNewClassMap.Add(OldClass, NewClass);
TMap<FStringAssetReference, UObject*> ReinstancedObjectsWeakReferenceMap;
// actors being replace
TArray<FActorReplacementHelper> ReplacementActors;
// A list of objects (e.g. Blueprints) that potentially have editors open that we need to refresh
TArray<UObject*> PotentialEditorsForRefreshing;
// A list of component owners that need their construction scripts re-ran (because a component of theirs has been reinstanced)
TSet<AActor*> OwnersToReconstruct;
// Set global flag to let system know we are reconstructing blueprint instances
TGuardValue<bool> GuardTemplateNameFlag(GIsReconstructingBlueprintInstances, true);
struct FObjectRemappingHelper
{
void OnObjectsReplaced(const TMap<UObject*, UObject*>& InReplacedObjects)
{
ReplacedObjects.Append(InReplacedObjects);
}
TMap<UObject*, UObject*> ReplacedObjects;
} ObjectRemappingHelper;
FDelegateHandle OnObjectsReplacedHandle = GEditor->OnObjectsReplaced().AddRaw(&ObjectRemappingHelper,&FObjectRemappingHelper::OnObjectsReplaced);
{ BP_SCOPED_COMPILER_EVENT_STAT(EKismetReinstancerStats_ReplaceInstancesOfClass);
const bool bIncludeDerivedClasses = false;
GetObjectsOfClass(OldClass, ObjectsToReplace, bIncludeDerivedClasses);
SelectedActors = GEditor->GetSelectedActors();
SelectedActors->BeginBatchSelectOperation();
SelectedActors->Modify();
// Then fix 'real' (non archetype) instances of the class
for (UObject* OldObject : ObjectsToReplace)
{
// Skip non-archetype instances, EXCEPT for component templates
const bool bIsComponent = NewClass->IsChildOf(UActorComponent::StaticClass());
if ((!bIsComponent && OldObject->IsTemplate()) || OldObject->IsPendingKill())
{
continue;
}
UBlueprint* CorrespondingBlueprint = Cast<UBlueprint>(OldObject->GetClass()->ClassGeneratedBy);
UObject* OldBlueprintDebugObject = nullptr;
// If this object is being debugged, cache it off so we can preserve the 'object being debugged' association
if ((CorrespondingBlueprint != nullptr) && (CorrespondingBlueprint->GetObjectBeingDebugged() == OldObject))
{
OldBlueprintDebugObject = OldObject;
}
AActor* OldActor = Cast<AActor>(OldObject);
UObject* NewUObject = nullptr;
// if the object to replace is an actor...
if (OldActor != nullptr)
{
FVector Location = FVector::ZeroVector;
FRotator Rotation = FRotator::ZeroRotator;
if (USceneComponent* OldRootComponent = OldActor->GetRootComponent())
{
Location = OldActor->GetActorLocation();
Rotation = OldActor->GetActorRotation();
}
// If this actor was spawned from an Archetype, we spawn the new actor from the new version of that archetype
UObject* OldArchetype = OldActor->GetArchetype();
UWorld* World = OldActor->GetWorld();
AActor* NewArchetype = Cast<AActor>(OldToNewInstanceMap.FindRef(OldArchetype));
// Check that either this was an instance of the class directly, or we found a new archetype for it
check(OldArchetype == OldClass->GetDefaultObject() || NewArchetype);
// Spawn the new actor instance, in the same level as the original, but deferring running the construction script until we have transferred modified properties
ULevel* ActorLevel = OldActor->GetLevel();
UClass** MappedClass = OldToNewClassMap.Find(OldActor->GetClass());
UClass* SpawnClass = MappedClass ? *MappedClass : NewClass;
FActorSpawnParameters SpawnInfo;
SpawnInfo.OverrideLevel = ActorLevel;
SpawnInfo.Template = NewArchetype;
SpawnInfo.bNoCollisionFail = true;
SpawnInfo.bDeferConstruction = true;
// Temporarily remove the deprecated flag so we can respawn the Blueprint in the level
const bool bIsClassDeprecated = SpawnClass->HasAnyClassFlags(CLASS_Deprecated);
SpawnClass->ClassFlags &= ~CLASS_Deprecated;
AActor* NewActor = World->SpawnActor(SpawnClass, &Location, &Rotation, SpawnInfo);
// Reassign the deprecated flag if it was previously assigned
if (bIsClassDeprecated)
{
SpawnClass->ClassFlags |= CLASS_Deprecated;
}
check(NewActor != nullptr);
NewUObject = NewActor;
// store the new actor for the second pass (NOTE: this detaches
// OldActor from all child/parent attachments)
//
// running the NewActor's construction-script is saved for that
// second pass (because the construction-script may reference
// another instance that hasn't been replaced yet).
ReplacementActors.Add(FActorReplacementHelper(NewActor, OldActor));
ReinstancedObjectsWeakReferenceMap.Add(OldObject, NewUObject);
OldActor->DestroyConstructedComponents(); // don't want to serialize components from the old actor
// Unregister native components so we don't copy any sub-components they generate for themselves (like UCameraComponent does)
OldActor->UnregisterAllComponents();
// Unregister any native components, might have cached state based on properties we are going to overwrite
NewActor->UnregisterAllComponents();
UEditorEngine::CopyPropertiesForUnrelatedObjects(OldActor, NewActor);
// reset properties/streams
NewActor->ResetPropertiesForConstruction();
// register native components
NewActor->RegisterAllComponents();
//
// clean up the old actor (unselect it, remove it from the world, etc.)...
if (OldActor->IsSelected())
{
GEditor->SelectActor(OldActor, /*bInSelected =*/false, /*bNotify =*/false);
bSelectionChanged = true;
}
if (GEditor->Layers.IsValid()) // ensure(NULL != GEditor->Layers) ?? While cooking the Layers is NULL.
{
GEditor->Layers->DisassociateActorFromLayers(OldActor);
}
World->EditorDestroyActor(OldActor, /*bShouldModifyLevel =*/true);
OldToNewInstanceMap.Add(OldActor, NewActor);
}
else
{
FName OldName(OldObject->GetFName());
OldObject->Rename(NULL, OldObject->GetOuter(), REN_DoNotDirty | REN_DontCreateRedirectors);
NewUObject = NewObject<UObject>(OldObject->GetOuter(), NewClass, OldName);
check(NewUObject != nullptr);
UEditorEngine::CopyPropertiesForUnrelatedObjects(OldObject, NewUObject);
if (UAnimInstance* AnimTree = Cast<UAnimInstance>(NewUObject))
{
// Initialising the anim instance isn't enough to correctly set up the skeletal mesh again in a
// paused world, need to initialise the skeletal mesh component that contains the anim instance.
if (USkeletalMeshComponent* SkelComponent = Cast<USkeletalMeshComponent>(AnimTree->GetOuter()))
{
SkelComponent->InitAnim(true);
}
}
OldObject->RemoveFromRoot();
OldObject->MarkPendingKill();
OldToNewInstanceMap.Add(OldObject, NewUObject);
if (bIsComponent)
{
UActorComponent* Component = Cast<UActorComponent>(NewUObject);
AActor* OwningActor = Component->GetOwner();
if (OwningActor)
{
OwningActor->ResetOwnedComponents();
// Check to see if they have an editor that potentially needs to be refreshed
if (OwningActor->GetClass()->ClassGeneratedBy)
{
PotentialEditorsForRefreshing.AddUnique(OwningActor->GetClass()->ClassGeneratedBy);
}
// we need to keep track of actor instances that need
// their construction scripts re-ran (since we've just
// replaced a component they own)
OwnersToReconstruct.Add(OwningActor);
}
}
}
// If this original object came from a blueprint and it was in the selected debug set, change the debugging to the new object.
if ((CorrespondingBlueprint) && (OldBlueprintDebugObject) && (NewUObject))
{
CorrespondingBlueprint->SetObjectBeingDebugged(NewUObject);
}
if (bLogConversions)
{
UE_LOG(LogBlueprint, Log, TEXT("Converted instance '%s' to '%s'"), *OldObject->GetPathName(), *NewUObject->GetPathName());
}
}
}
GEditor->OnObjectsReplaced().Remove(OnObjectsReplacedHandle);
// Now replace any pointers to the old archetypes/instances with pointers to the new one
TArray<UObject*> SourceObjects;
TArray<UObject*> DstObjects;
OldToNewInstanceMap.GenerateKeyArray(SourceObjects);
OldToNewInstanceMap.GenerateValueArray(DstObjects); // Also look for references in new spawned objects.
SourceObjects.Append(DstObjects);
FReplaceReferenceHelper::IncludeCDO(OldClass, NewClass, OldToNewInstanceMap, SourceObjects, OriginalCDO);
FReplaceReferenceHelper::FindAndReplaceReferences(SourceObjects, ObjectsThatShouldUseOldStuff, ObjectsToReplace, OldToNewInstanceMap, ReinstancedObjectsWeakReferenceMap);
{ BP_SCOPED_COMPILER_EVENT_STAT(EKismetReinstancerStats_ReplacementConstruction);
// the process of setting up new replacement actors is split into two
// steps (this here, is the second)...
//
// the "finalization" here runs the replacement actor's construction-
// script and is left until late to account for a scenario where the
// construction-script attempts to modify another instance of the
// same class... if this were to happen above, in the ObjectsToReplace
// loop, then accessing that other instance would cause an assert in
// UProperty::ContainerPtrToValuePtrInternal() (which appropriatly
// complains that the other instance's type doesn't match because it
// hasn't been replaced yet... that's why we wait until after
// FArchiveReplaceObjectRef to run construction-scripts).
for (FActorReplacementHelper& ReplacementActor : ReplacementActors)
{
ReplacementActor.Finalize(ObjectRemappingHelper.ReplacedObjects);
}
}
SelectedActors->EndBatchSelectOperation();
if (bSelectionChanged)
{
GEditor->NoteSelectionChange();
}
if (GEditor)
{
// Refresh any editors for objects that we've updated components for
for (auto BlueprintAsset : PotentialEditorsForRefreshing)
{
FBlueprintEditor* BlueprintEditor = static_cast<FBlueprintEditor*>(FAssetEditorManager::Get().FindEditorForAsset(BlueprintAsset, /*bFocusIfOpen =*/false));
if (BlueprintEditor)
{
BlueprintEditor->RefreshEditors();
}
}
}
// in the case where we're replacing component instances, we need to make
// sure to re-run their owner's construction scripts
for (AActor* ActorInstance : OwnersToReconstruct)
{
ActorInstance->RerunConstructionScripts();
}
}
void DisplayProfileData( const TMap< FString, TSharedPtr< struct FProfiledFileStatsFileBase > >& InProfileData )
{
TArray< TSharedPtr<FProfiledFileStatsFileBase> > ProfileData;
InProfileData.GenerateValueArray( ProfileData );
// Single root data is required for bar visualizer to work properly
TSharedPtr< FVisualizerEvent > RootEvent( new FVisualizerEvent( 0.0, 1.0, 0.0, 0, TEXT("I/O") ) );
// Calculate Start time first
double StartTimeMs = FPlatformTime::Seconds() * 1000.0; // All timings happened before now
double EndTimeMs = 0.0;
for( int32 Index = 0; Index < ProfileData.Num(); Index++ )
{
TSharedPtr<FProfiledFileStatsFileBase> FileStat = ProfileData[ Index ];
double FileDurationMs = 0.0;
for( int32 ChildIndex = 0; ChildIndex < FileStat->Children.Num(); ChildIndex++ )
{
TSharedPtr<FProfiledFileStatsOp> FileOpStat = FileStat->Children[ ChildIndex ];
if( FileOpStat->Duration > 0.0 )
{
StartTimeMs = FMath::Min( FileOpStat->StartTime, StartTimeMs );
EndTimeMs = FMath::Max( FileOpStat->StartTime + FileOpStat->Duration, EndTimeMs );
FileDurationMs += FileOpStat->Duration;
}
}
// Create an event for each of the files
TSharedPtr< FVisualizerEvent > FileEvent( new FVisualizerEvent( 0.0, 1.0, FileDurationMs, Index, FileStat->Name ) );
FileEvent->ParentEvent = RootEvent;
RootEvent->Children.Add( FileEvent );
}
const double TotalTimeMs = EndTimeMs - StartTimeMs;
RootEvent->DurationMs = TotalTimeMs;
for( int32 FileIndex = 0; FileIndex < ProfileData.Num(); FileIndex++ )
{
TSharedPtr<FProfiledFileStatsFileBase> FileStat = ProfileData[ FileIndex ];
TSharedPtr<FVisualizerEvent> FileEvent( RootEvent->Children[ FileIndex ] );
for( int32 ChildIndex = 0; ChildIndex < FileStat->Children.Num(); ChildIndex++ )
{
TSharedPtr<FProfiledFileStatsOp> FileOpStat = FileStat->Children[ ChildIndex ];
if( FileOpStat->Duration > 0.0 )
{
FString EventName;
switch( FileOpStat->Type )
{
case FProfiledFileStatsOp::Tell:
EventName = TEXT("Tell"); break;
case FProfiledFileStatsOp::Seek:
EventName = TEXT("Seek"); break;
case FProfiledFileStatsOp::Read:
EventName = FString::Printf( TEXT("Read (%lld)"), FileOpStat->Bytes ); break;
case FProfiledFileStatsOp::Write:
EventName = FString::Printf( TEXT("Write (%lld)"), FileOpStat->Bytes ); break;
case FProfiledFileStatsOp::Size:
EventName = TEXT("Size"); break;
case FProfiledFileStatsOp::OpenRead:
EventName = TEXT("OpenRead"); break;
case FProfiledFileStatsOp::OpenWrite:
EventName = TEXT("OpenWrite"); break;
case FProfiledFileStatsOp::Exists:
EventName = TEXT("Exists"); break;
case FProfiledFileStatsOp::Delete:
EventName = TEXT("Delete"); break;
case FProfiledFileStatsOp::Move:
EventName = TEXT("Move"); break;
case FProfiledFileStatsOp::IsReadOnly:
EventName = TEXT("IsReadOnly"); break;
case FProfiledFileStatsOp::SetReadOnly:
EventName = TEXT("SetReadOnly"); break;
case FProfiledFileStatsOp::GetTimeStamp:
EventName = TEXT("GetTimeStamp"); break;
case FProfiledFileStatsOp::SetTimeStamp:
EventName = TEXT("SetTimeStamp"); break;
case FProfiledFileStatsOp::Create:
EventName = TEXT("Create"); break;
case FProfiledFileStatsOp::Copy:
EventName = TEXT("Copy"); break;
case FProfiledFileStatsOp::Iterate:
EventName = TEXT("Iterate"); break;
default:
EventName = TEXT("Unknown"); break;
}
const double StartTime = ( FileOpStat->StartTime - StartTimeMs ) / TotalTimeMs;
const double DurationTime = FileOpStat->Duration / TotalTimeMs;
TSharedPtr<FVisualizerEvent> ChildEvent( new FVisualizerEvent( StartTime, DurationTime, FileOpStat->Duration, FileIndex, EventName ) );
ChildEvent->ParentEvent = FileEvent;
FileEvent->Children.Add( ChildEvent );
}
}
}
static FName TaskGraphModule(TEXT("TaskGraph"));
if (FModuleManager::Get().IsModuleLoaded(TaskGraphModule))
{
IProfileVisualizerModule& ProfileVisualizer = FModuleManager::GetModuleChecked<IProfileVisualizerModule>(TaskGraphModule);
ProfileVisualizer.DisplayProfileVisualizer( RootEvent, TEXT("I/O") );
}
}
