VR2024_WizardVR/TheProject/VRWizardProject/Plugins/MetaXR/Source/OculusXRHMD/Private/OculusXRHMDPrivate.h

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// @lint-ignore-every LICENSELINT
// Copyright Epic Games, Inc. All Rights Reserved.
#pragma once
#include "GameFramework/WorldSettings.h"
#include "IOculusXRHMDModule.h"
#include "OculusXRFunctionLibrary.h"
#include "OculusXRPassthroughLayerShapes.h"
#include "StereoRendering.h"
#include "HAL/RunnableThread.h"
#include "RHI.h"
#include <functional>
#if OCULUS_HMD_SUPPORTED_PLATFORMS
#define OCULUS_HMD_SUPPORTED_PLATFORMS_D3D11 PLATFORM_WINDOWS
#define OCULUS_HMD_SUPPORTED_PLATFORMS_D3D12 PLATFORM_WINDOWS
#define OCULUS_HMD_SUPPORTED_PLATFORMS_VULKAN (PLATFORM_WINDOWS || PLATFORM_ANDROID)
#else
#define OCULUS_HMD_SUPPORTED_PLATFORMS_D3D11 0
#define OCULUS_HMD_SUPPORTED_PLATFORMS_D3D12 0
#define OCULUS_HMD_SUPPORTED_PLATFORMS_VULKAN 0
#endif // OCULUS_HMD_SUPPORTED_PLATFORMS
//-------------------------------------------------------------------------------------------------
// OVRPlugin
//-------------------------------------------------------------------------------------------------
#if OCULUS_HMD_SUPPORTED_PLATFORMS
#include "OculusXRPluginWrapper.h"
#endif // OCULUS_HMD_SUPPORTED_PLATFORMS
//-------------------------------------------------------------------------------------------------
// Utility functions
//-------------------------------------------------------------------------------------------------
namespace OculusXRHMD
{
#if OCULUS_HMD_SUPPORTED_PLATFORMS
struct FPose
{
FQuat Orientation;
FVector Position;
FPose()
: Orientation(EForceInit::ForceInit)
, Position(EForceInit::ForceInit)
{
}
FPose(const FQuat& InOrientation, const FVector& InPosition)
: Orientation(InOrientation), Position(InPosition) {}
FPose Inverse() const
{
FQuat InvOrientation = Orientation.Inverse();
FVector InvPosition = InvOrientation.RotateVector(-Position);
return FPose(InvOrientation, InvPosition);
}
FPose operator*(const FPose& other) const
{
return FPose(Orientation * other.Orientation, Orientation.RotateVector(other.Position) + Position);
}
};
/** Converts ovrpQuatf to FQuat */
FORCEINLINE FQuat ToFQuat(const ovrpQuatf& InQuat)
{
return FQuat(-InQuat.z, InQuat.x, InQuat.y, -InQuat.w);
}
/** Converts FQuat to ovrpQuatf */
FORCEINLINE ovrpQuatf ToOvrpQuatf(const FQuat& InQuat)
{
return ovrpQuatf{ static_cast<float>(InQuat.Y), static_cast<float>(InQuat.Z), static_cast<float>(-InQuat.X), static_cast<float>(-InQuat.W) };
}
/** Converts vector from Oculus to Unreal */
FORCEINLINE FVector ToFVector(const ovrpVector3f& InVec)
{
return FVector(-InVec.z, InVec.x, InVec.y);
}
/** Converts vector from Unreal to Oculus. */
FORCEINLINE ovrpVector3f ToOvrpVector3f(const FVector& InVec)
{
return ovrpVector3f{ static_cast<float>(InVec.Y), static_cast<float>(InVec.Z), static_cast<float>(-InVec.X) };
}
FORCEINLINE FMatrix ToFMatrix(const ovrpMatrix4f& vtm)
{
// Rows and columns are swapped between ovrpMatrix4f and FMatrix
return FMatrix(
FPlane(vtm.M[0][0], vtm.M[1][0], vtm.M[2][0], vtm.M[3][0]),
FPlane(vtm.M[0][1], vtm.M[1][1], vtm.M[2][1], vtm.M[3][1]),
FPlane(vtm.M[0][2], vtm.M[1][2], vtm.M[2][2], vtm.M[3][2]),
FPlane(vtm.M[0][3], vtm.M[1][3], vtm.M[2][3], vtm.M[3][3]));
}
FORCEINLINE ovrpVector4f LinearColorToOvrpVector4f(const FLinearColor& InColor)
{
return ovrpVector4f{ InColor.R, InColor.G, InColor.B, InColor.A };
}
FORCEINLINE ovrpRecti ToOvrpRecti(const FIntRect& rect)
{
return ovrpRecti{ { rect.Min.X, rect.Min.Y }, { rect.Size().X, rect.Size().Y } };
}
FORCEINLINE ovrpColorf ToOvrpColorf(const FLinearColor LinearColor)
{
return ovrpColorf{ LinearColor.R, LinearColor.G, LinearColor.B, LinearColor.A };
}
FORCEINLINE ovrpMatrix4f ToOvrpMatrix(FMatrix Matrix)
{
ovrpMatrix4f Result;
Result.M[0][0] = Matrix.M[0][0];
Result.M[0][1] = Matrix.M[0][1];
Result.M[0][2] = Matrix.M[0][2];
Result.M[0][3] = Matrix.M[0][3];
Result.M[1][0] = Matrix.M[1][0];
Result.M[1][1] = Matrix.M[1][1];
Result.M[1][2] = Matrix.M[1][2];
Result.M[1][3] = Matrix.M[1][3];
Result.M[2][0] = Matrix.M[2][0];
Result.M[2][1] = Matrix.M[2][1];
Result.M[2][2] = Matrix.M[2][2];
Result.M[2][3] = Matrix.M[2][3];
Result.M[3][0] = Matrix.M[3][0];
Result.M[3][1] = Matrix.M[3][1];
Result.M[3][2] = Matrix.M[3][2];
Result.M[3][3] = Matrix.M[3][3];
return Result;
}
/** Helper that converts ovrTrackedDeviceType to EOculusXRTrackedDeviceType */
FORCEINLINE EOculusXRTrackedDeviceType ToEOculusXRTrackedDeviceType(ovrpNode Source)
{
EOculusXRTrackedDeviceType Destination = EOculusXRTrackedDeviceType::All; // Best attempt at initialization
switch (Source)
{
case ovrpNode_None:
Destination = EOculusXRTrackedDeviceType::None;
break;
case ovrpNode_Head:
Destination = EOculusXRTrackedDeviceType::HMD;
break;
case ovrpNode_HandLeft:
Destination = EOculusXRTrackedDeviceType::LTouch;
break;
case ovrpNode_HandRight:
Destination = EOculusXRTrackedDeviceType::RTouch;
break;
case ovrpNode_DeviceObjectZero:
Destination = EOculusXRTrackedDeviceType::DeviceObjectZero;
break;
default:
break;
}
return Destination;
}
/** Helper that converts EOculusXRTrackedDeviceType to ovrTrackedDeviceType */
FORCEINLINE ovrpNode ToOvrpNode(EOculusXRTrackedDeviceType Source)
{
ovrpNode Destination = ovrpNode_None; // Best attempt at initialization
switch (Source)
{
case EOculusXRTrackedDeviceType::None:
Destination = ovrpNode_None;
break;
case EOculusXRTrackedDeviceType::HMD:
Destination = ovrpNode_Head;
break;
case EOculusXRTrackedDeviceType::LTouch:
Destination = ovrpNode_HandLeft;
break;
case EOculusXRTrackedDeviceType::RTouch:
Destination = ovrpNode_HandRight;
break;
case EOculusXRTrackedDeviceType::DeviceObjectZero:
Destination = ovrpNode_DeviceObjectZero;
break;
default:
break;
}
return Destination;
}
FORCEINLINE int32 ToExternalDeviceId(const ovrpNode Source)
{
int32 ExternalDeviceId = INDEX_NONE;
switch (Source)
{
case ovrpNode_Head:
// required to be zero (see IXRTrackingSystem::HMDDeviceId)
ExternalDeviceId = 0;
break;
case ovrpNode_None:
case ovrpNode_Count:
case ovrpNode_EnumSize:
// ExternalDeviceId = INDEX_NONE;
break;
default:
// add one, in case the enum value is zero (conflicting with the HMD)
ExternalDeviceId = 1 + (int32)Source;
break;
}
return ExternalDeviceId;
}
FORCEINLINE ovrpNode ToOvrpNode(const int32 ExternalDeviceId)
{
ovrpNode Destination = ovrpNode_None;
switch (ExternalDeviceId)
{
case 0:
// zero implies HMD (see ToExternalDeviceId/IXRTrackingSystem::HMDDeviceId)
Destination = ovrpNode_Head;
break;
case -1:
// Destination = ovrpNode_None;
break;
default:
// we added one to avoid collision with the HMD's ID (see ToExternalDeviceId)
Destination = ovrpNode(ExternalDeviceId - 1);
break;
}
return Destination;
}
bool ConvertPose_Internal(const FPose& InPose, FPose& OutPose, const FQuat BaseOrientation, const FVector BaseOffset, float WorldToMetersScale);
bool ConvertPose_Internal(const ovrpPosef& InPose, FPose& OutPose, const FQuat BaseOrientation, const FVector BaseOffset, float WorldToMetersScale);
bool ConvertPose_Internal(const FPose& InPose, ovrpPosef& OutPose, const FQuat BaseOrientation, const FVector BaseOffset, float WorldToMetersScale);
FORCEINLINE ovrpInsightPassthroughColorMapType ToOVRPColorMapType(EOculusXRColorMapType InColorMapType)
{
switch (InColorMapType)
{
case ColorMapType_GrayscaleToColor:
return ovrpInsightPassthroughColorMapType_MonoToRgba;
case ColorMapType_Grayscale:
return ovrpInsightPassthroughColorMapType_MonoToMono;
case ColorMapType_ColorAdjustment:
return ovrpInsightPassthroughColorMapType_BrightnessContrastSaturation;
case ColorMapType_ColorLut:
return ovrpInsightPassthroughColorMapType_ColorLut;
case ColorMapType_ColorLut_Interpolated:
return ovrpInsightPassthroughColorMapType_InterpolatedColorLut;
default:
return ovrpInsightPassthroughColorMapType_None;
}
}
#endif // OCULUS_HMD_SUPPORTED_PLATFORMS
/** Check currently executing from Game thread */
OCULUSXRHMD_API bool InGameThread();
FORCEINLINE void CheckInGameThread()
{
#if DO_CHECK
check(InGameThread());
#endif
}
/** Check currently executing from Render thread */
OCULUSXRHMD_API bool InRenderThread();
FORCEINLINE void CheckInRenderThread()
{
#if DO_CHECK
check(InRenderThread());
#endif
}
/** Check currently executing from RHI thread */
OCULUSXRHMD_API bool InRHIThread();
FORCEINLINE void CheckInRHIThread()
{
#if DO_CHECK
check(InRHIThread());
#endif
}
FORCEINLINE bool GetUnitScaleFactorFromSettings(UWorld* World, float& outWorldToMeters)
{
if (IsValid(World))
{
const auto* WorldSettings = World->GetWorldSettings();
if (IsValid(WorldSettings))
{
outWorldToMeters = WorldSettings->WorldToMeters;
return true;
}
}
return false;
}
} // namespace OculusXRHMD