117 lines
4.9 KiB
C
117 lines
4.9 KiB
C
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// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "IViveOpenXREyeTrackerModule.h"
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#include "IEyeTracker.h"
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#include "IOpenXRExtensionPlugin.h"
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#include "HTCEyeTrackerTypes.h"
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DECLARE_LOG_CATEGORY_EXTERN(LogViveOpenXREyeTracker, Log, All);
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class AHUD;
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class FDebugDisplayInfo;
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class UCanvas;
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struct FHTCEyeTrackerExtesionDispatchTable
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{
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PFN_xrGetSystemProperties xrGetSystemProperties;
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PFN_xrCreateEyeTrackerHTC xrCreateEyeTrackerHTC;
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PFN_xrDestroyEyeTrackerHTC xrDestroyEyeTrackerHTC;
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PFN_xrGetEyeGazeDataHTC xrGetEyeGazeDataHTC;
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PFN_xrGetEyePupilDataHTC xrGetEyePupilDataHTC;
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PFN_xrGetEyeGeometricDataHTC xrGetEyeGeometricDataHTC;
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};
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class FViveOpenXREyeTracker : public IEyeTracker, public IOpenXRExtensionPlugin
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{
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public:
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FViveOpenXREyeTracker();
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virtual ~FViveOpenXREyeTracker();
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/************************************************************************/
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/* IEyeTracker */
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/************************************************************************/
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void Destroy();
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virtual void SetEyeTrackedPlayer(APlayerController* PlayerController) override {};
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virtual bool GetEyeTrackerGazeData(FEyeTrackerGazeData& OutGazeData) const override;
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virtual bool GetEyeTrackerStereoGazeData(FEyeTrackerStereoGazeData& OutGazeData) const override;
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virtual EEyeTrackerStatus GetEyeTrackerStatus() const override;
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virtual bool IsStereoGazeDataAvailable() const override;
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/************************************************************************/
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/* IOpenXRExtensionPlugin */
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/************************************************************************/
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virtual FString GetDisplayName() override
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{
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return FString(TEXT("ViveOpenXREyeTracker"));
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}
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virtual bool GetRequiredExtensions(TArray<const ANSICHAR*>& OutExtensions) override;
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virtual void PostCreateInstance(XrInstance InInstance) override;
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virtual bool GetInteractionProfile(XrInstance InInstance, FString& OutKeyPrefix, XrPath& OutPath, bool& OutHasHaptics) override;
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virtual void AttachActionSets(TSet<XrActionSet>& OutActionSets) override;
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virtual void PostGetSystem(XrInstance InInstance, XrSystemId InSystem) override;
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virtual void PostCreateSession(XrSession InSession) override;
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virtual const void* OnCreateSession(XrInstance InInstance, XrSystemId InSystem, const void* InNext) override;
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virtual const void* OnBeginSession(XrSession InSession, const void* InNext) override;
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virtual void OnDestroySession(XrSession InSession) override;
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virtual void GetActiveActionSetsForSync(TArray<XrActiveActionSet>& OutActiveSets) override;
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virtual void PostSyncActions(XrSession InSession) override;
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virtual void UpdateDeviceLocations(XrSession InSession, XrTime DisplayTime, XrSpace TrackingSpace) override;
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void DrawDebug(AHUD* HUD, UCanvas* Canvas, const FDebugDisplayInfo& DisplayInfo, float& YL, float& YPos);
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public:
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XrEyeTrackerHTC EyeTrackerHTC = XR_NULL_HANDLE;
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XrEyeGazeDataHTC EyeGazesHTC{ XR_TYPE_EYE_GAZE_DATA_HTC, nullptr };
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XrEyePupilDataHTC PupilDatasHTC{ XR_TYPE_EYE_PUPIL_DATA_HTC, nullptr };
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XrEyeGeometricDataHTC EyeGeometricDatasHTC{ XR_TYPE_EYE_GEOMETRIC_DATA_HTC, nullptr };
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FXrGazeDataHTC GetEyeGazeValidDatas();
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FXrPupilDataHTC GetPupilDatas();
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FXrEyeGeometricDataHTC GetEyeGeometricDatas();
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private:
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bool isHTCEyeTrackerSupported = false;
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class IXRTrackingSystem* XRTrackingSystem = nullptr;
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XrInstance Instance = XR_NULL_HANDLE;
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XrSession Session = XR_NULL_HANDLE;
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XrSystemId SystemId;
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bool bSessionStarted = false;
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XrActionsSyncInfo SyncInfo{ XR_TYPE_ACTIONS_SYNC_INFO };
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XrAction EyeTrackerAction = XR_NULL_HANDLE;
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XrActionSet EyeTrackerActionSet = XR_NULL_HANDLE;
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XrSpace GazeActionSpace = XR_NULL_HANDLE;
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XrActionStatePose ActionStatePose{ XR_TYPE_ACTION_STATE_POSE };
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// EyeTracker cached data
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XrSpaceLocation EyeTrackerSpaceLocation{ XR_TYPE_SPACE_LOCATION };
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FHTCEyeTrackerExtesionDispatchTable FHTCEyeTracker_ext{};
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};
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class FViveOpenXREyeTrackerModule : public IViveOpenXREyeTrackerModule
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{
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/************************************************************************/
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/* IInputDeviceModule */
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/************************************************************************/
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public:
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FViveOpenXREyeTrackerModule();
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virtual void StartupModule() override;
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virtual void ShutdownModule() override;
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virtual TSharedPtr< class IEyeTracker, ESPMode::ThreadSafe > CreateEyeTracker() override;
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/************************************************************************/
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/* IEyeTrackerModule */
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/************************************************************************/
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virtual bool IsEyeTrackerConnected() const override;
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private:
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TSharedPtr<FViveOpenXREyeTracker, ESPMode::ThreadSafe> EyeTracker;
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FDelegateHandle OnDrawDebugHandle;
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void OnDrawDebug(AHUD* HUD, UCanvas* Canvas, const FDebugDisplayInfo& DisplayInfo, float& YL, float& YPos);
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};
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