void DoTask(ENamedThreads::Type CurrentThread, const FGraphEventRef& MyCompletionGraphEvent)
{
for (FTaskArray::TIterator It(*Components); It; ++It)
{
UActorComponent* Component = *It;
if (!Component->IsPendingKill() && Component->IsRegistered() && !Component->IsTemplate())
{
FScopeCycleCounterUObject ComponentScope(Component);
FScopeCycleCounterUObject AdditionalScope(STATS ? Component->AdditionalStatObject() : NULL);
Component->DoDeferredRenderUpdates_Concurrent();
}
}
}
/**
* Send all render updates to the rendering thread.
*/
void UWorld::SendAllEndOfFrameUpdates(FGraphEventArray* OutCompletion)
{
SCOPE_CYCLE_COUNTER(STAT_PostTickComponentUpdate);
// update all dirty components.
bPostTickComponentUpdate = true;
if (!OutCompletion)
{
// this is a viewer or something, just do everything on the gamethread
for (TSet<TWeakObjectPtr<UActorComponent> >::TIterator It(ComponentsThatNeedEndOfFrameUpdate); It; ++It)
{
ComponentsThatNeedEndOfFrameUpdate_OnGameThread.Add(*It);
}
ComponentsThatNeedEndOfFrameUpdate.Empty(ComponentsThatNeedEndOfFrameUpdate.Num());
}
else
{
// remove any gamethread updates from the async update list
for (TSet<TWeakObjectPtr<UActorComponent> >::TIterator It(ComponentsThatNeedEndOfFrameUpdate_OnGameThread); It; ++It)
{
ComponentsThatNeedEndOfFrameUpdate.Remove(*It);
}
}
// Game thread updates need to happen before we go wide on the other threads.
// These updates are things that have said that they are NOT SAFE to run concurrently.
for (TSet<TWeakObjectPtr<UActorComponent> >::TIterator It(ComponentsThatNeedEndOfFrameUpdate_OnGameThread); It; ++It)
{
UActorComponent* Component = It->Get();
if (Component && !Component->IsPendingKill() && Component->IsRegistered() && !Component->IsTemplate())
{
FScopeCycleCounterUObject ComponentScope(Component);
FScopeCycleCounterUObject AdditionalScope(STATS ? Component->AdditionalStatObject() : NULL);
Component->DoDeferredRenderUpdates_Concurrent();
}
}
if (ComponentsThatNeedEndOfFrameUpdate.Num())
{
check(OutCompletion);
enum
{
NUM_COMPONENTS_PER_TASK = 20
};
typedef TArray<UActorComponent*, TInlineAllocator<NUM_COMPONENTS_PER_TASK> > FTaskArray;
/** Helper class define the task of calling DoDeferredRenderUpdates_Concurrent on an array of components **/
class FDoRenderthreadUpdatesTask
{
/** Array of components to process, owned by the task **/
TScopedPointer<FTaskArray> Components;
public:
FDoRenderthreadUpdatesTask(FTaskArray* InComponents)
: Components(InComponents)
{
}
FORCEINLINE TStatId GetStatId() const
{
RETURN_QUICK_DECLARE_CYCLE_STAT(DoRenderthreadUpdatesTask, STATGROUP_TaskGraphTasks);
}
static ENamedThreads::Type GetDesiredThread()
{
return ENamedThreads::AnyThread;
}
static ESubsequentsMode::Type GetSubsequentsMode()
{
return ESubsequentsMode::TrackSubsequents;
}
void DoTask(ENamedThreads::Type CurrentThread, const FGraphEventRef& MyCompletionGraphEvent)
{
for (FTaskArray::TIterator It(*Components); It; ++It)
{
UActorComponent* Component = *It;
if (!Component->IsPendingKill() && Component->IsRegistered() && !Component->IsTemplate())
{
FScopeCycleCounterUObject ComponentScope(Component);
FScopeCycleCounterUObject AdditionalScope(STATS ? Component->AdditionalStatObject() : NULL);
Component->DoDeferredRenderUpdates_Concurrent();
}
}
}
};
{
//@todo optimization, this loop could be done on another thread
// First get the async transform and render data updates underway
FTaskArray* Array = NULL;
for (TSet<TWeakObjectPtr<UActorComponent> >::TIterator It(ComponentsThatNeedEndOfFrameUpdate); It; ++It)
{
UActorComponent* NextComponent = It->Get();
if (NextComponent && !NextComponent->IsPendingKill() && NextComponent->IsRegistered() && !NextComponent->IsTemplate())
{
if (!Array)
{
Array = new FTaskArray;
}
Array->Add(NextComponent);
if (Array->Num() == NUM_COMPONENTS_PER_TASK)
{
new (*OutCompletion) FGraphEventRef(TGraphTask<FDoRenderthreadUpdatesTask>::CreateTask(NULL, ENamedThreads::GameThread).ConstructAndDispatchWhenReady(Array));
Array = NULL; // Array belongs to the task
}
}
}
if (Array) // partial array if we had one
{
new (*OutCompletion) FGraphEventRef(TGraphTask<FDoRenderthreadUpdatesTask>::CreateTask(NULL, ENamedThreads::GameThread).ConstructAndDispatchWhenReady(Array));
Array = NULL; // Array belongs to the task
}
}
}
bPostTickComponentUpdate = false;
ComponentsThatNeedEndOfFrameUpdate.Empty(ComponentsThatNeedEndOfFrameUpdate.Num());
ComponentsThatNeedEndOfFrameUpdate_OnGameThread.Empty(ComponentsThatNeedEndOfFrameUpdate_OnGameThread.Num());
}
