OVR_PUBLIC_FUNCTION(ovrTrackingState) ovr_GetTrackingState(ovrSession session, double absTime, ovrBool latencyMarker)
{
ovrTrackingState state = { 0 };
if (!session)
return state;
// Gain focus for the compositor
float time = (float)ovr_GetTimeInSeconds();
// Get the absolute tracking poses
vr::TrackedDevicePose_t* poses = session->poses;
// Convert the head pose
state.HeadPose = REV_TrackedDevicePoseToOVRPose(poses[vr::k_unTrackedDeviceIndex_Hmd], time);
state.StatusFlags = REV_TrackedDevicePoseToOVRStatusFlags(poses[vr::k_unTrackedDeviceIndex_Hmd]);
// Convert the hand poses
vr::TrackedDeviceIndex_t hands[] = { g_VRSystem->GetTrackedDeviceIndexForControllerRole(vr::TrackedControllerRole_LeftHand),
g_VRSystem->GetTrackedDeviceIndexForControllerRole(vr::TrackedControllerRole_RightHand) };
for (int i = 0; i < ovrHand_Count; i++)
{
vr::TrackedDeviceIndex_t deviceIndex = hands[i];
if (deviceIndex == vr::k_unTrackedDeviceIndexInvalid)
{
state.HandPoses[i].ThePose = OVR::Posef::Identity();
continue;
}
state.HandPoses[i] = REV_TrackedDevicePoseToOVRPose(poses[deviceIndex], time);
state.HandStatusFlags[i] = REV_TrackedDevicePoseToOVRStatusFlags(poses[deviceIndex]);
}
OVR::Matrix4f origin = REV_HmdMatrixToOVRMatrix(g_VRSystem->GetSeatedZeroPoseToStandingAbsoluteTrackingPose());
// The calibrated origin should be the location of the seated origin relative to the absolute tracking space.
// It currently describes the location of the absolute origin relative to the seated origin, so we have to invert it.
origin.Invert();
state.CalibratedOrigin.Orientation = OVR::Quatf(origin);
state.CalibratedOrigin.Position = origin.GetTranslation();
return state;
}
OVR_PUBLIC_FUNCTION(ovrTrackingState) ovr_GetTrackingState(ovrSession session, double absTime, ovrBool latencyMarker)
{
ovrTrackingState state = { 0 };
// Gain focus for the compositor
float time = (float)ovr_GetTimeInSeconds();
// Get the absolute tracking poses
vr::TrackedDevicePose_t* poses = session->gamePoses;
// Convert the head pose
state.HeadPose = REV_TrackedDevicePoseToOVRPose(poses[vr::k_unTrackedDeviceIndex_Hmd], time);
state.StatusFlags = REV_TrackedDevicePoseToOVRStatusFlags(poses[vr::k_unTrackedDeviceIndex_Hmd]);
// Convert the hand poses
vr::TrackedDeviceIndex_t hands[] = { g_VRSystem->GetTrackedDeviceIndexForControllerRole(vr::TrackedControllerRole_LeftHand),
g_VRSystem->GetTrackedDeviceIndexForControllerRole(vr::TrackedControllerRole_RightHand) };
for (int i = 0; i < ovrHand_Count; i++)
{
vr::TrackedDeviceIndex_t deviceIndex = hands[i];
if (deviceIndex == (uint32_t)-1)
{
state.HandPoses[i].ThePose = OVR::Posef::Identity();
continue;
}
state.HandPoses[i] = REV_TrackedDevicePoseToOVRPose(poses[deviceIndex], time);
state.HandStatusFlags[i] = REV_TrackedDevicePoseToOVRStatusFlags(poses[deviceIndex]);
}
// TODO: It looks like this should be set to GetSeatedZeroPoseToStandingAbsoluteTrackingPose()?
state.CalibratedOrigin.Orientation = OVR::Quatf();
state.CalibratedOrigin.Position = OVR::Vector3f();
return state;
}