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Added Tobii from 4.23 + updated

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Litruv
2023-03-04 04:19:09 +11:00
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commit 1cde391516
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Source/TobiiCore/Private/TobiiEyetracker.h Normal file
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/******************************************************************************
* Copyright 2017- Tobii Technology AB. All rights reserved.
*
* @author Temaran | Fredrik Lindh | fredrik.lindh@tobii.com | https://github.com/Temaran
******************************************************************************/
#pragma once
#if TOBII_EYETRACKING_ACTIVE
#include "ITobiiEyeTracker.h"
#include "TobiiPlatformSpecific.h"
#include "TobiiInternalTypes.h"
#include "tobii_gameintegration.h"
#include "CoreMinimal.h"
#include "Containers/Ticker.h"
#include "GameFramework/PlayerController.h"
#include "Slate/SceneViewport.h"
/*
* FTickerObjectBase here is ticked almost last in a frame.
* The order seems to go 'IInputDevice', then shortly after that 'Actor/Components' and very late after that the 'TickerCore' and thereby also FTickerObjectBase.
* No matter if we choose IInputDevice or FTickerObjectBase we will be working with complete physics data from the last frame.
* Of course we would rather be working with current frame physics data, but doing that would make our data more TickGroup dependent.
* Maybe that's fine, but seeing as our traces are not really precise anyways, I think the simplicity of design of using FTickerObjectBase wins out.
*
* The big alternative would be to move all GTOM related objects to an actor that belongs to the PostPhysics tick group together with the focus managers and introduce a tick dependency.
* See FEngineLoop::Tick() for more detailed info.
*/
class FTobiiEyeTracker : public ITobiiEyeTracker, public FTickerObjectBase
{
public:
FTobiiEyeTracker();
virtual ~FTobiiEyeTracker();
virtual bool Tick(float DeltaTime) override;
void Shutdown();
bool IsConnectedToEyeTracker();
/************************************************************************/
/* ITobiiEyetracker */
/************************************************************************/
public:
virtual const FTobiiGazeData& GetCombinedGazeData() const override;
virtual const FTobiiGazeData& GetLeftGazeData() const override;
virtual const FTobiiGazeData& GetRightGazeData() const override;
virtual ETobiiGazeTrackerStatus GetGazeTrackerStatus() const override;
virtual bool GetGazeTrackerCapability(ETobiiGazeTrackerCapability Capability) const override;
virtual const FHitResult& GetCombinedWorldGazeHitData() const override;
virtual const FHitResult& GetLeftWorldGazeHitData() const override;
virtual const FHitResult& GetRightWorldGazeHitData() const override;
virtual const FTobiiDisplayInfo& GetDisplayInformation() const override;
virtual const FTobiiHeadPoseData& GetHeadPoseData() const override;
virtual const FTobiiDesktopTrackBox& GetDesktopTrackBox() const override;
virtual const FRotator& GetInfiniteScreenAngles() const override;
public:
virtual void SetEyeTrackedPlayer(APlayerController* PlayerController) override;
virtual bool IsStereoGazeDataAvailable() const override { return bIsXR; }
virtual bool GetEyeTrackerGazeData(FEyeTrackerGazeData& OutGazeData) const override;
virtual bool GetEyeTrackerStereoGazeData(FEyeTrackerStereoGazeData& OutGazeData) const override;
virtual EEyeTrackerStatus GetEyeTrackerStatus() const override;
private:
TobiiGameIntegration::ITobiiGameIntegrationApi* TgiApi;
FTobiiPlatformNotifications PlatformNotifications;
TWeakObjectPtr<APlayerController> ActivePlayerController;
FHitResult CombinedWorldGazeHitData;
FHitResult LeftWorldGazeHitData;
FHitResult RightWorldGazeHitData;
FTobiiGazeData LeftGazeData;
FTobiiGazeData RightGazeData;
FTobiiGazeData CombinedGazeData;
ETobiiGazeTrackerStatus GazeTrackerStatus;
FTobiiHeadPoseData HeadPoseData;
FTobiiDisplayInfo DisplayInfo;
FRotator InfiniteScreenAngles;
FTobiiDesktopTrackBox DesktopTrackBox;
FTobiiRawGazePoint RawGazePoint;
FTobiiRawHeadPose RawHeadPose;
FVector PrevCombinedGazeDirection;
bool bIsXR;
int64 GazeDataTimeStampMicroSecs;
uint64 GazePointDeltaTimeMicroSecs;
double CurrentAverageGazeAngularSpeedDegPerMicroSecs;
FDateTime StartTime;
void ResetData();
bool UpdateLowLevelResources();
void TickDesktop(float DeltaTime);
void TickXR(float DeltaTime);
void UpdateWorldSpaceData(float DeltaTime);
void UpdateStabilityData(float DeltaTime);
FVector2D ConvertRawGazePointUNormToGameViewportCoordinateUNorm(FSceneViewport* GameViewport, const FVector2D& InNormalizedPoint);
FVector2D& TickEmulatedGazePointUNorm(float DeltaTime);
};
#endif //TOBII_EYETRACKING_ACTIVE