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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
commit | 0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d (patch) | |
tree | a31f07c9bcca9d56ce61e9a1ffd30ef350d513aa /dom/vr/XRBoundedReferenceSpace.cpp | |
parent | Initial commit. (diff) | |
download | firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.tar.xz firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.zip |
Adding upstream version 115.8.0esr.upstream/115.8.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | dom/vr/XRBoundedReferenceSpace.cpp | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/dom/vr/XRBoundedReferenceSpace.cpp b/dom/vr/XRBoundedReferenceSpace.cpp new file mode 100644 index 0000000000..8d6eb25fdf --- /dev/null +++ b/dom/vr/XRBoundedReferenceSpace.cpp @@ -0,0 +1,73 @@ +/* -*- 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/XRBoundedReferenceSpace.h" +#include "mozilla/dom/XRRigidTransform.h" +#include "mozilla/dom/DOMPoint.h" +#include "VRDisplayClient.h" + +namespace mozilla::dom { + +XRBoundedReferenceSpace::XRBoundedReferenceSpace(nsIGlobalObject* aParent, + XRSession* aSession, + XRNativeOrigin* aNativeOrigin) + : XRReferenceSpace(aParent, aSession, aNativeOrigin, + XRReferenceSpaceType::Bounded_floor) {} + +JSObject* XRBoundedReferenceSpace::WrapObject( + JSContext* aCx, JS::Handle<JSObject*> aGivenProto) { + return XRBoundedReferenceSpace_Binding::Wrap(aCx, this, aGivenProto); +} + +void XRBoundedReferenceSpace::GetBoundsGeometry( + nsTArray<RefPtr<DOMPointReadOnly>>& result) { + const auto size = + mSession->GetDisplayClient()->GetDisplayInfo().GetStageSize(); + if (size.width == 0 || size.height == 0) { + return; + } + + // https://immersive-web.github.io/webxr/#dom-xrboundedreferencespace-boundsgeometry + // bounds geometry must be premultiplied by the inverse of the origin offset. + gfx::PointDouble3D offset = mNativeOrigin->GetPosition(); + + const auto addPoint = [&](const double x, const double z) { + RefPtr<DOMPointReadOnly> obj = new DOMPointReadOnly( + GetParentObject(), x - offset.x, 0.0f, z - offset.z, 1.0f); + result.EmplaceBack(obj); + }; + + addPoint(-size.width * 0.5f, size.height * 0.5f); + addPoint(size.width * 0.5f, size.height * 0.5f); + addPoint(size.width * 0.5f, -size.height * 0.5f); + addPoint(-size.width * 0.5f, -size.height * 0.5f); + + // TODO (Bug 1611526): Support WebXR bounded reference spaces +} + +already_AddRefed<XRReferenceSpace> +XRBoundedReferenceSpace::GetOffsetReferenceSpace( + const XRRigidTransform& aOriginOffset) { + RefPtr<XRBoundedReferenceSpace> offsetReferenceSpace = + new XRBoundedReferenceSpace(GetParentObject(), mSession, mNativeOrigin); + + // 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(); +} + +} // namespace mozilla::dom |