public void PollEventState(ref HeadsetState state)
{
GvrErrorType eventType;
try {
eventType = (GvrErrorType)gvr_poll_event(gvrContextPtr, gvrEventPtr);
} catch (EntryPointNotFoundException) {
Debug.LogError("GvrHeadset not supported by this version of Unity. " +
"Support starts in 5.6.3p3 and 2017.1.1p1.");
throw;
}
if (eventType == GvrErrorType.NoEventAvailable)
{
state.eventType = GvrEventType.Invalid;
return;
}
Marshal.PtrToStructure(gvrEventPtr, gvrEventHeader);
state.eventFlags = gvrEventHeader.flags;
state.eventTimestampNs = gvrEventHeader.timestamp;
state.eventType = (GvrEventType)gvrEventHeader.type;
// Event data begins after header.
IntPtr eventDataPtr = new IntPtr(gvrEventPtr.ToInt64() + Marshal.SizeOf(gvrEventHeader));
if (state.eventType == GvrEventType.Recenter)
{
Marshal.PtrToStructure(eventDataPtr, gvrRecenterEventData);
_HandleRecenterEvent(ref state, gvrRecenterEventData);
return;
}
}
private void _HandleRecenterEvent(ref HeadsetState state, gvr_recenter_event_data eventData)
{
state.recenterEventType = (GvrRecenterEventType)eventData.recenter_event_type;
state.recenterEventFlags = eventData.recenter_event_flags;
Matrix4x4 gvrMatrix = GvrMathHelpers.ConvertFloatArrayToMatrix(eventData.pose_transform);
GvrMathHelpers.GvrMatrixToUnitySpace(
gvrMatrix, out state.recenteredPosition, out state.recenteredRotation);
}
private void _HandleRecenterEvent(ref HeadsetState state, gvr_recenter_event_data eventData)
{
state.recenterEventType = (GvrRecenterEventType)eventData.recenter_event_type;
state.recenterEventFlags = eventData.recenter_event_flags;
Matrix4x4 poseTransform = MATRIX4X4_IDENTITY;
float[] poseRaw = eventData.pose_transform;
for (int i = 0; i < 4; i++)
{
int j = i * 4;
Vector4 row = new Vector4(poseRaw[j], poseRaw[j + 1], poseRaw[j + 2], poseRaw[j + 3]);
poseTransform.SetRow(i, row);
}
// Invert the matrix to go from row-major (GVR) to column-major (Unity),
// and change from LHS to RHS coordinates.
transientRecenteredPose3d.SetRightHanded(poseTransform.transpose);
state.recenteredPosition = transientRecenteredPose3d.Position;
state.recenteredRotation = transientRecenteredPose3d.Orientation;
}
public void PollEventState(ref HeadsetState state)
{
#if UNITY_ANDROID && UNITY_EDITOR
if (InstantPreview.Instance != null)
{
if (InstantPreview.Instance.events.Count > 0)
{
InstantPreview.UnityGvrEvent eventState = InstantPreview.Instance.events.Dequeue();
switch (eventState.type)
{
case InstantPreview.GvrEventType.GVR_EVENT_NONE:
state.eventType = GvrEventType.Invalid;
break;
case InstantPreview.GvrEventType.GVR_EVENT_RECENTER:
state.eventType = GvrEventType.Recenter;
break;
case InstantPreview.GvrEventType.GVR_EVENT_SAFETY_REGION_EXIT:
state.eventType = GvrEventType.SafetyRegionExit;
break;
case InstantPreview.GvrEventType.GVR_EVENT_SAFETY_REGION_ENTER:
state.eventType = GvrEventType.SafetyRegionEnter;
break;
case InstantPreview.GvrEventType.GVR_EVENT_HEAD_TRACKING_RESUMED:
// Currently not supported.
state.eventType = GvrEventType.Invalid;
break;
case InstantPreview.GvrEventType.GVR_EVENT_HEAD_TRACKING_PAUSED:
// Currently not supported.
state.eventType = GvrEventType.Invalid;
break;
}
state.eventFlags = (int)eventState.flags;
state.eventTimestampNs = eventState.timestamp;
// Only add recenter-specific fields if this is a recenter event.
if (eventState.type == InstantPreview.GvrEventType.GVR_EVENT_RECENTER)
{
switch (eventState.gvr_recenter_event_data.recenter_type)
{
case InstantPreview.GvrRecenterEventType.GVR_RECENTER_EVENT_NONE:
state.recenterEventType = GvrRecenterEventType.Invalid;
break;
case InstantPreview.GvrRecenterEventType.GVR_RECENTER_EVENT_RESTART:
state.recenterEventType = GvrRecenterEventType.RecenterEventRestart;
break;
case InstantPreview.GvrRecenterEventType.GVR_RECENTER_EVENT_ALIGNED:
state.recenterEventType = GvrRecenterEventType.RecenterEventAligned;
break;
case InstantPreview.GvrRecenterEventType.GVR_RECENTER_EVENT_DON:
// Currently not supported.
state.recenterEventType = GvrRecenterEventType.Invalid;
break;
}
state.recenterEventFlags = eventState.gvr_recenter_event_data.recenter_event_flags;
GvrMathHelpers.GvrMatrixToUnitySpace(
eventState.gvr_recenter_event_data.start_space_from_tracking_space_transform,
out state.recenteredPosition,
out state.recenteredRotation);
}
}
else
{
state.eventType = GvrEventType.Invalid;
}
}
return;
#endif // UNITY_ANDROID && UNITY_EDITOR
// Events are unavailable through emulation.
}
public void PollEventState(ref HeadsetState state)
{
// Emulation coming soon.
}
public void PollEventState(ref HeadsetState state)
{
}
