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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
#include "XRNativeOriginLocal.h"
#include "VRDisplayClient.h"
namespace mozilla::dom {
XRNativeOriginLocal::XRNativeOriginLocal(gfx::VRDisplayClient* aDisplay)
: mDisplay(aDisplay), mInitialPositionValid(false) {
MOZ_ASSERT(aDisplay);
}
gfx::PointDouble3D XRNativeOriginLocal::GetPosition() {
// Keep returning {0,0,0} until a position can be found
if (!mInitialPositionValid) {
const gfx::VRHMDSensorState& sensorState = mDisplay->GetSensorState();
gfx::PointDouble3D origin;
if (sensorState.flags & gfx::VRDisplayCapabilityFlags::Cap_Position ||
sensorState.flags &
gfx::VRDisplayCapabilityFlags::Cap_PositionEmulated) {
mInitialPosition.x = sensorState.pose.position[0];
mInitialPosition.y = sensorState.pose.position[1];
mInitialPosition.z = sensorState.pose.position[2];
mInitialPositionValid = true;
}
}
return mInitialPosition;
}
} // namespace mozilla::dom