зеркало из https://github.com/mozilla/gecko-dev.git
48 строки
1.9 KiB
C++
48 строки
1.9 KiB
C++
|
/* -*- 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,
|
||
|
|
* You can obtain one at http://mozilla.org/MPL/2.0/. */
|
||
|
|
|
||
|
|
#include "mozilla/dom/XRReferenceSpace.h"
|
||
|
|
#include "mozilla/dom/XRRigidTransform.h"
|
||
|
|
#include "VRDisplayClient.h"
|
||
|
|
|
||
|
|
namespace mozilla {
|
||
|
|
namespace dom {
|
||
|
|
|
||
|
|
XRReferenceSpace::XRReferenceSpace(nsIGlobalObject* aParent,
|
||
|
|
XRSession* aSession,
|
||
|
|
XRNativeOrigin* aNativeOrigin,
|
||
|
|
XRReferenceSpaceType aType)
|
||
|
|
: XRSpace(aParent, aSession, aNativeOrigin), mType(aType) {}
|
||
|
|
|
||
|
|
already_AddRefed<XRReferenceSpace> XRReferenceSpace::GetOffsetReferenceSpace(
|
||
|
|
const XRRigidTransform& aOriginOffset) {
|
||
|
|
RefPtr<XRReferenceSpace> offsetReferenceSpace =
|
||
|
|
new XRReferenceSpace(GetParentObject(), mSession, mNativeOrigin, mType);
|
||
|
|
|
||
|
|
// https://immersive-web.github.io/webxr/#multiply-transforms
|
||
|
|
// An XRRigidTransform is essentially a rotation followed by a translation
|
||
|
|
gfx::QuaternionDouble otherOrientation = aOriginOffset.RawOrientation();
|
||
|
|
// The resulting rotation is the two combined
|
||
|
|
offsetReferenceSpace->mOriginOffsetOrientation =
|
||
|
|
mOriginOffsetOrientation * otherOrientation;
|
||
|
|
// We first apply the rotation of aOriginOffset to
|
||
|
|
// mOriginOffsetPosition offset, then translate by the offset of
|
||
|
|
// aOriginOffset
|
||
|
|
offsetReferenceSpace->mOriginOffsetPosition =
|
||
|
|
otherOrientation.RotatePoint(mOriginOffsetPosition) +
|
||
|
|
aOriginOffset.RawPosition();
|
||
|
|
|
||
|
|
return offsetReferenceSpace.forget();
|
||
|
|
}
|
||
|
|
|
||
|
|
JSObject* XRReferenceSpace::WrapObject(JSContext* aCx,
|
||
|
|
JS::Handle<JSObject*> aGivenProto) {
|
||
|
|
return XRReferenceSpace_Binding::Wrap(aCx, this, aGivenProto);
|
||
|
|
}
|
||
|
|
|
||
|
|
} // namespace dom
|
||
|
|
} // namespace mozilla
|