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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/XRSpace.cpp | |
parent | Initial commit. (diff) | |
download | firefox-esr-upstream/115.8.0esr.tar.xz firefox-esr-upstream/115.8.0esr.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/XRSpace.cpp | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/dom/vr/XRSpace.cpp b/dom/vr/XRSpace.cpp new file mode 100644 index 0000000000..1f6449e870 --- /dev/null +++ b/dom/vr/XRSpace.cpp @@ -0,0 +1,81 @@ +/* -*- 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/XRSpace.h" +#include "mozilla/dom/XRRigidTransform.h" +#include "VRDisplayClient.h" + +namespace mozilla::dom { + +NS_IMPL_CYCLE_COLLECTION_CLASS(XRSpace) + +NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(XRSpace, DOMEventTargetHelper) + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mSession) +NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END + +NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(XRSpace, DOMEventTargetHelper) + NS_IMPL_CYCLE_COLLECTION_UNLINK(mSession) + // Don't need NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER because + // DOMEventTargetHelper does it for us. +NS_IMPL_CYCLE_COLLECTION_UNLINK_END + +NS_IMPL_ISUPPORTS_CYCLE_COLLECTION_INHERITED_0(XRSpace, DOMEventTargetHelper) + +XRSpace::XRSpace(nsIGlobalObject* aParent, XRSession* aSession, + XRNativeOrigin* aNativeOrigin) + : DOMEventTargetHelper(aParent), + mSession(aSession), + mNativeOrigin(aNativeOrigin), + mOriginOffsetPosition(0.0f, 0.0f, 0.0f), + mOriginOffsetOrientation(0.0f, 0.0f, 0.0f, 1.0f) {} + +JSObject* XRSpace::WrapObject(JSContext* aCx, + JS::Handle<JSObject*> aGivenProto) { + return XRSpace_Binding::Wrap(aCx, this, aGivenProto); +} + +XRSession* XRSpace::GetSession() const { return mSession; } + +gfx::QuaternionDouble XRSpace::GetEffectiveOriginOrientation() const { + gfx::QuaternionDouble orientation = + mNativeOrigin->GetOrientation() * mOriginOffsetOrientation; + return orientation; +} + +gfx::PointDouble3D XRSpace::GetEffectiveOriginPosition() const { + gfx::PointDouble3D position; + position = mNativeOrigin->GetPosition(); + position = mOriginOffsetOrientation.RotatePoint(position); + position += mOriginOffsetPosition; + return position; +} + +gfx::Matrix4x4Double XRSpace::GetEffectiveOriginTransform() const { + gfx::Matrix4x4Double transform; + transform.SetRotationFromQuaternion(GetEffectiveOriginOrientation()); + transform.PostTranslate(GetEffectiveOriginPosition()); + return transform; +} + +bool XRSpace::IsPositionEmulated() const { + gfx::VRDisplayClient* display = mSession->GetDisplayClient(); + if (!display) { + // When there are no sensors, the position is considered emulated. + return true; + } + const gfx::VRDisplayInfo& displayInfo = display->GetDisplayInfo(); + if (displayInfo.GetCapabilities() & + gfx::VRDisplayCapabilityFlags::Cap_PositionEmulated) { + // Cap_PositionEmulated indicates that the position is always emulated. + return true; + } + const gfx::VRHMDSensorState& sensorState = display->GetSensorState(); + // When positional tracking is lost, the position is considered emulated. + return ((sensorState.flags & gfx::VRDisplayCapabilityFlags::Cap_Position) == + gfx::VRDisplayCapabilityFlags::Cap_None); +} + +} // namespace mozilla::dom |