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Separate GLRC for OpenXR to ensure uncontested access.

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Safety check on predictions to police that they are made only once per frame.
This commit is contained in:
Mads Buvik Sandvei 2020-06-02 21:46:22 +02:00
parent 9ad910a8e7
commit 8f38f0536c
2 changed files with 30 additions and 3 deletions
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30
apps/openmw/mwvr/openxrmanagerimpl.cpp
View file

@ -93,10 +93,16 @@ namespace MWVR
{ // Create Session
// TODO: Platform dependent
auto DC = wglGetCurrentDC();
auto GLRC = wglGetCurrentContext();
auto XRGLRC = wglCreateContext(DC);
wglShareLists(GLRC, XRGLRC);
wglMakeCurrent(DC, XRGLRC);
mGraphicsBinding.type = XR_TYPE_GRAPHICS_BINDING_OPENGL_WIN32_KHR;
mGraphicsBinding.next = nullptr;
mGraphicsBinding.hDC = wglGetCurrentDC();
mGraphicsBinding.hGLRC = wglGetCurrentContext();
mGraphicsBinding.hDC = DC;
mGraphicsBinding.hGLRC = XRGLRC;
if (!mGraphicsBinding.hDC)
std::cout << "Missing DC" << std::endl;
@ -108,6 +114,7 @@ namespace MWVR
createInfo.systemId = mSystemId;
CHECK_XRCMD(xrCreateSession(mInstance, &createInfo, &mSession));
assert(mSession);
wglMakeCurrent(DC, GLRC);
}
LogLayersAndExtensions();
@ -315,7 +322,11 @@ namespace MWVR
int64_t predictedDisplayTime,
TrackedSpace space)
{
if (!mPredictionsEnabled)
{
Log(Debug::Error) << "Prediction out of order";
throw std::logic_error("Prediction out of order");
}
std::array<XrView, 2> views{ {{XR_TYPE_VIEW}, {XR_TYPE_VIEW}} };
XrViewState viewState{ XR_TYPE_VIEW_STATE };
uint32_t viewCount = 2;
@ -339,6 +350,11 @@ namespace MWVR
MWVR::Pose OpenXRManagerImpl::getPredictedLimbPose(int64_t predictedDisplayTime, TrackedLimb limb, TrackedSpace space)
{
if (!mPredictionsEnabled)
{
Log(Debug::Error) << "Prediction out of order";
throw std::logic_error("Prediction out of order");
}
XrSpaceLocation location{ XR_TYPE_SPACE_LOCATION };
XrSpaceVelocity velocity{ XR_TYPE_SPACE_VELOCITY };
location.next = &velocity;
@ -500,6 +516,14 @@ namespace MWVR
referenceSpace = mReferenceSpaceView;
return referenceSpace;
}
void OpenXRManagerImpl::enablePredictions()
{
mPredictionsEnabled = true;
}
void OpenXRManagerImpl::disablePredictions()
{
mPredictionsEnabled = false;
}
}
namespace osg

3
apps/openmw/mwvr/openxrmanagerimpl.hpp
View file

@ -65,8 +65,11 @@ namespace MWVR
void HandleSessionStateChanged(const XrEventDataSessionStateChanged& stateChangedEvent);
XrFrameState frameState();
XrSpace getReferenceSpace(TrackedSpace space);
void enablePredictions();
void disablePredictions();
bool initialized = false;
bool mPredictionsEnabled = false;
long long mFrameIndex = 0;
XrInstance mInstance = XR_NULL_HANDLE;
XrSession mSession = XR_NULL_HANDLE;