зеркало из https://github.com/mozilla/gecko-dev.git
94 строки
3.0 KiB
C++
94 строки
3.0 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/dom/XRView.h"
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namespace mozilla {
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namespace dom {
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NS_IMPL_CYCLE_COLLECTION_CLASS(XRView)
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NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(XRView)
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NS_IMPL_CYCLE_COLLECTION_UNLINK(mParent, mTransform)
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NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER
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tmp->mJSProjectionMatrix = nullptr;
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NS_IMPL_CYCLE_COLLECTION_UNLINK_END
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(XRView)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mParent, mTransform)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
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NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN(XRView)
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NS_IMPL_CYCLE_COLLECTION_TRACE_PRESERVED_WRAPPER
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NS_IMPL_CYCLE_COLLECTION_TRACE_JS_MEMBER_CALLBACK(mJSProjectionMatrix)
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NS_IMPL_CYCLE_COLLECTION_TRACE_END
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NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(XRView, AddRef)
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NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(XRView, Release)
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XRView::XRView(nsISupports* aParent, const XREye& aEye)
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: mParent(aParent),
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mEye(aEye),
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mPosition(gfx::PointDouble3D()),
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mOrientation(gfx::QuaternionDouble()),
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mJSProjectionMatrix(nullptr) {
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mozilla::HoldJSObjects(this);
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}
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XRView::~XRView() { mozilla::DropJSObjects(this); }
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JSObject* XRView::WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) {
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return XRView_Binding::Wrap(aCx, this, aGivenProto);
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}
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void XRView::Update(const gfx::PointDouble3D& aPosition,
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const gfx::QuaternionDouble& aOrientation,
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const gfx::Matrix4x4& aProjectionMatrix) {
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mPosition = aPosition;
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mOrientation = aOrientation;
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mProjectionMatrix = aProjectionMatrix;
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if (mTransform) {
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mTransform->Update(aPosition, aOrientation);
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}
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if (aProjectionMatrix != mProjectionMatrix) {
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mProjectionNeedsUpdate = true;
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mProjectionMatrix = aProjectionMatrix;
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}
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}
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XREye XRView::Eye() const { return mEye; }
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void XRView::GetProjectionMatrix(JSContext* aCx,
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JS::MutableHandle<JSObject*> aRetval,
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ErrorResult& aRv) {
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if (!mJSProjectionMatrix || mProjectionNeedsUpdate) {
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mProjectionNeedsUpdate = false;
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gfx::Matrix4x4 mat;
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Pose::SetFloat32Array(aCx, this, aRetval, mJSProjectionMatrix,
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mProjectionMatrix.components, 16, aRv);
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if (!mJSProjectionMatrix) {
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return;
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}
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}
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if (mJSProjectionMatrix) {
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JS::ExposeObjectToActiveJS(mJSProjectionMatrix);
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}
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aRetval.set(mJSProjectionMatrix);
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}
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already_AddRefed<XRRigidTransform> XRView::GetTransform(ErrorResult& aRv) {
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if (!mTransform) {
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mTransform = new XRRigidTransform(mParent, mPosition, mOrientation);
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}
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RefPtr<XRRigidTransform> transform = mTransform;
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return transform.forget();
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}
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} // namespace dom
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} // namespace mozilla
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