DemoNetDriver.cpp File Reference

#include "Engine/DemoNetDriver.h"
#include "Async/TaskGraphInterfaces.h"
#include "Engine/DemoNetConnection.h"
#include "Engine/GameInstance.h"
#include "Engine/LevelStreaming.h"
#include "UObject/Package.h"
#include "Engine/NetConnection.h"
#include "GameFramework/PlayerStart.h"
#include "Engine/LocalPlayer.h"
#include "Engine/PendingNetGame.h"
#include "EngineUtils.h"
#include "Engine/DemoPendingNetGame.h"
#include "Engine/ReplicationDriver.h"
#include "Net/DataReplication.h"
#include "Engine/ActorChannel.h"
#include "Engine/NetworkObjectList.h"
#include "GameFramework/SpectatorPawn.h"
#include "GameFramework/SpectatorPawnMovement.h"
#include "Math/Interval.h"
#include "Net/UnrealNetwork.h"
#include "UnrealEngine.h"
#include "Net/NetworkProfiler.h"
#include "GameFramework/GameStateBase.h"
#include "Misc/CommandLine.h"
#include "Stats/StatsMisc.h"
#include "Engine/ChildConnection.h"
#include "Net/ReplayPlaylistTracker.h"
#include "Net/NetworkGranularMemoryLogging.h"
#include "HAL/LowLevelMemStats.h"
#include "ProfilingDebugging/AssetMetadataTrace.h"

Classes
struct	FDemoBudgetLogHelper
class	FPendingTaskHelper
class	FScopedAllowExistingChannelIndex
class	FJumpToLiveReplayTask
class	FGotoTimeInSecondsTask
class	FSkipTimeInSecondsTask
class	FFastForwardLevelsTask
class	FReplayViewer
class	FRepActorsParams
class	FDemoNetDriverReplayPlaylistHelper

Namespaces
namespace	ReplayTaskNames
namespace	UE
namespace	UE::Net
namespace	DemoNetDriverRecordingPrivate

Macros
#define	DEMO_CSV_PROFILING_HELPERS_ENABLED   (CSV_PROFILER && (!UE_BUILD_SHIPPING))

Functions
	DEFINE_LOG_CATEGORY (LogDemo)
	CSV_DEFINE_CATEGORY (Demo, true)

Variables
TAutoConsoleVariable< float >	CVarDemoRecordHz (TEXT("demo.RecordHz"), 8, TEXT("Maximum number of demo frames recorded per second"))
TAutoConsoleVariable< float >	CVarDemoMinRecordHz (TEXT("demo.MinRecordHz"), 0, TEXT("Minimum number of demo frames recorded per second (use with care)"))
TAutoConsoleVariable< int32 >	CVarEnableCheckpoints (TEXT("demo.EnableCheckpoints"), 1, TEXT("Whether or not checkpoints save on the server"))
TAutoConsoleVariable< float >	CVarCheckpointUploadDelayInSeconds (TEXT("demo.CheckpointUploadDelayInSeconds"), 30.0f, TEXT(""))
TAutoConsoleVariable< float >	CVarCheckpointSaveMaxMSPerFrameOverride (TEXT("demo.CheckpointSaveMaxMSPerFrameOverride"), -1.0f, TEXT("If >= 0, this value will override the CheckpointSaveMaxMSPerFrame member variable, which is the maximum time allowed each frame to spend on saving a checkpoint. If 0, it will save the checkpoint in a single frame, regardless of how long it takes."))
TAutoConsoleVariable< int32 >	CVarDemoClientRecordAsyncEndOfFrame (TEXT("demo.ClientRecordAsyncEndOfFrame"), 0, TEXT("If true, TickFlush will be called on a thread in parallel with Slate."))
TAutoConsoleVariable< int32 >	CVarDemoUseNetRelevancy (TEXT("demo.UseNetRelevancy"), 0, TEXT("If 1, will enable relevancy checks and distance culling, using all connected clients as reference."))
TAutoConsoleVariable< int32 >	CVarWithLevelStreamingFixes (TEXT("demo.WithLevelStreamingFixes"), 0, TEXT("If 1, provides fixes for level streaming (but breaks backwards compatibility)."))
TAutoConsoleVariable< int32 >	CVarWithDemoTimeBurnIn (TEXT("demo.WithTimeBurnIn"), 0, TEXT("If true, adds an on screen message with the current DemoTime and Changelist."))
TAutoConsoleVariable< int32 >	CVarWithDeltaCheckpoints (TEXT("demo.WithDeltaCheckpoints"), 0, TEXT("If true, record checkpoints as a delta from the previous checkpoint."))
TAutoConsoleVariable< int32 >	CVarWithGameSpecificFrameData (TEXT("demo.WithGameSpecificFrameData"), 0, TEXT("If true, allow game specific data to be recorded with each demo frame."))
double	GTickFlushDemoDriverTimeSeconds = 0.0

Macro Definition Documentation

DEMO_CSV_PROFILING_HELPERS_ENABLED

#define DEMO_CSV_PROFILING_HELPERS_ENABLED   (CSV_PROFILER && (!UE_BUILD_SHIPPING))

Function Documentation

CSV_DEFINE_CATEGORY()

CSV_DEFINE_CATEGORY	(	Demo	,
		true
	)

DEFINE_LOG_CATEGORY()

DEFINE_LOG_CATEGORY

(

LogDemo

)

Variable Documentation

CVarCheckpointSaveMaxMSPerFrameOverride

TAutoConsoleVariable< float > CVarCheckpointSaveMaxMSPerFrameOverride(TEXT("demo.CheckpointSaveMaxMSPerFrameOverride"), -1.0f, TEXT("If >= 0, this value will override the CheckpointSaveMaxMSPerFrame member variable, which is the maximum time allowed each frame to spend on saving a checkpoint. If 0, it will save the checkpoint in a single frame, regardless of how long it takes."))	(	TEXT("demo.CheckpointSaveMaxMSPerFrameOverride")	,
		-1.	0f,
		TEXT("If >= 0, this value will override the CheckpointSaveMaxMSPerFrame member variable, which is the maximum time allowed each frame to spend on saving a checkpoint. If 0, it will save the checkpoint in a single frame, regardless of how long it takes.")
	)

CVarCheckpointUploadDelayInSeconds

TAutoConsoleVariable< float > CVarCheckpointUploadDelayInSeconds(TEXT("demo.CheckpointUploadDelayInSeconds"), 30.0f, TEXT(""))	(	TEXT("demo.CheckpointUploadDelayInSeconds")	,
		30.	0f,
		TEXT("")
	)

CVarDemoClientRecordAsyncEndOfFrame

TAutoConsoleVariable< int32 > CVarDemoClientRecordAsyncEndOfFrame(TEXT("demo.ClientRecordAsyncEndOfFrame"), 0, TEXT("If true, TickFlush will be called on a thread in parallel with Slate."))	(	TEXT("demo.ClientRecordAsyncEndOfFrame")	,
		0	,
		TEXT("If true, TickFlush will be called on a thread in parallel with Slate.")
	)

CVarDemoMinRecordHz

TAutoConsoleVariable< float > CVarDemoMinRecordHz(TEXT("demo.MinRecordHz"), 0, TEXT("Minimum number of demo frames recorded per second (use with care)"))	(	TEXT("demo.MinRecordHz")	,
		0	,
		TEXT("Minimum number of demo frames recorded per second (use with care)")
	)

CVarDemoRecordHz

TAutoConsoleVariable< float > CVarDemoRecordHz(TEXT("demo.RecordHz"), 8, TEXT("Maximum number of demo frames recorded per second"))	(	TEXT("demo.RecordHz")	,
		8	,
		TEXT("Maximum number of demo frames recorded per second")
	)

CVarDemoUseNetRelevancy

TAutoConsoleVariable< int32 > CVarDemoUseNetRelevancy(TEXT("demo.UseNetRelevancy"), 0, TEXT("If 1, will enable relevancy checks and distance culling, using all connected clients as reference."))	(	TEXT("demo.UseNetRelevancy")	,
		0	,
		TEXT("If 1, will enable relevancy checks and distance culling, using all connected clients as reference.")
	)

CVarEnableCheckpoints

TAutoConsoleVariable< int32 > CVarEnableCheckpoints(TEXT("demo.EnableCheckpoints"), 1, TEXT("Whether or not checkpoints save on the server"))	(	TEXT("demo.EnableCheckpoints")	,
		1	,
		TEXT("Whether or not checkpoints save on the server")
	)

CVarWithDeltaCheckpoints

TAutoConsoleVariable< int32 > CVarWithDeltaCheckpoints(TEXT("demo.WithDeltaCheckpoints"), 0, TEXT("If true, record checkpoints as a delta from the previous checkpoint."))	(	TEXT("demo.WithDeltaCheckpoints")	,
		0	,
		TEXT("If true, record checkpoints as a delta from the previous checkpoint.")
	)

CVarWithDemoTimeBurnIn

TAutoConsoleVariable< int32 > CVarWithDemoTimeBurnIn(TEXT("demo.WithTimeBurnIn"), 0, TEXT("If true, adds an on screen message with the current DemoTime and Changelist."))	(	TEXT("demo.WithTimeBurnIn")	,
		0	,
		TEXT("If true, adds an on screen message with the current DemoTime and Changelist.")
	)

CVarWithGameSpecificFrameData

TAutoConsoleVariable< int32 > CVarWithGameSpecificFrameData(TEXT("demo.WithGameSpecificFrameData"), 0, TEXT("If true, allow game specific data to be recorded with each demo frame."))	(	TEXT("demo.WithGameSpecificFrameData")	,
		0	,
		TEXT("If true, allow game specific data to be recorded with each demo frame.")
	)

CVarWithLevelStreamingFixes

TAutoConsoleVariable< int32 > CVarWithLevelStreamingFixes(TEXT("demo.WithLevelStreamingFixes"), 0, TEXT("If 1, provides fixes for level streaming (but breaks backwards compatibility)."))	(	TEXT("demo.WithLevelStreamingFixes")	,
		0	,
		TEXT("If 1, provides fixes for level streaming (but breaks backwards compatibility).")
	)

GTickFlushDemoDriverTimeSeconds

double GTickFlushDemoDriverTimeSeconds = 0.0

Accounts for the network time we spent in the demo driver.