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/*
* Copyright (C) 2020 Igalia S.L. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "WebXRSpace.h"
#if ENABLE(WEBXR)
#include "DOMPointReadOnly.h"
#include "Document.h"
#include "WebXRRigidTransform.h"
#include "WebXRSession.h"
#include <wtf/TZoneMallocInlines.h>
namespace WebCore {
WTF_MAKE_TZONE_OR_ISO_ALLOCATED_IMPL(WebXRSpace);
WebXRSpace::WebXRSpace(Document& document, Ref<WebXRRigidTransform>&& offset)
: ContextDestructionObserver(&document)
, m_originOffset(WTFMove(offset))
{
}
WebXRSpace::~WebXRSpace() = default;
std::optional<TransformationMatrix> WebXRSpace::effectiveOrigin() const
{
// https://immersive-web.github.io/webxr/#xrspace-effective-origin
// The effective origin can be obtained by multiplying origin offset and the native origin.
auto origin = nativeOrigin();
if (!origin)
return std::nullopt;
return origin.value() * m_originOffset->rawTransform();
}
std::optional<bool> WebXRSpace::isPositionEmulated() const
{
WebXRSession* xrSession = session();
if (!xrSession)
return std::nullopt;
return xrSession->isPositionEmulated();
}
WTF_MAKE_TZONE_OR_ISO_ALLOCATED_IMPL(WebXRViewerSpace);
WebXRViewerSpace::WebXRViewerSpace(Document& document, WebXRSession& session)
: WebXRSpace(document, WebXRRigidTransform::create())
, m_session(session)
{
}
WebXRViewerSpace::~WebXRViewerSpace() = default;
std::optional<TransformationMatrix> WebXRViewerSpace::nativeOrigin() const
{
if (!m_session)
return std::nullopt;
return WebXRFrame::matrixFromPose(m_session->frameData().origin);
}
} // namespace WebCore
#endif // ENABLE(WEBXR)
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