| /* |
| * Copyright (C) 2021 Apple, Inc. 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 "WebXRHand.h" |
| |
| #if ENABLE(WEBXR) && ENABLE(WEBXR_HANDS) |
| |
| #include "WebXRInputSource.h" |
| #include <wtf/IsoMallocInlines.h> |
| |
| namespace WebCore { |
| |
| WTF_MAKE_ISO_ALLOCATED_IMPL(WebXRHand); |
| |
| Ref<WebXRHand> WebXRHand::create(const WebXRInputSource& inputSource) |
| { |
| return adoptRef(*new WebXRHand(inputSource)); |
| } |
| |
| WebXRHand::WebXRHand(const WebXRInputSource& inputSource) |
| : m_inputSource(inputSource) |
| { |
| auto* session = this->session(); |
| auto* document = session ? downcast<Document>(session->scriptExecutionContext()) : nullptr; |
| if (!document) |
| return; |
| |
| size_t jointCount = static_cast<size_t>(XRHandJoint::Count); |
| Vector<Ref<WebXRJointSpace>> joints; |
| joints.reserveInitialCapacity(jointCount); |
| for (size_t i = 0; i < jointCount; ++i) |
| joints.uncheckedAppend(WebXRJointSpace::create(*document, *this, static_cast<XRHandJoint>(i))); |
| m_joints = WTFMove(joints); |
| } |
| |
| WebXRHand::~WebXRHand() = default; |
| |
| RefPtr<WebXRJointSpace> WebXRHand::get(const XRHandJoint& key) |
| { |
| size_t jointIndex = static_cast<size_t>(key); |
| if (jointIndex >= m_joints.size()) |
| return nullptr; |
| |
| return m_joints[jointIndex].ptr(); |
| } |
| |
| WebXRHand::Iterator::Iterator(WebXRHand& hand) |
| : m_hand(hand) |
| { |
| } |
| |
| std::optional<KeyValuePair<XRHandJoint, RefPtr<WebXRJointSpace>>> WebXRHand::Iterator::next() |
| { |
| if (m_index >= m_hand->m_joints.size()) |
| return std::nullopt; |
| |
| size_t index = m_index++; |
| return KeyValuePair<XRHandJoint, RefPtr<WebXRJointSpace>> { static_cast<XRHandJoint>(index), m_hand->m_joints[index].ptr() }; |
| } |
| |
| WebXRSession* WebXRHand::session() |
| { |
| if (!m_inputSource) |
| return nullptr; |
| |
| return m_inputSource.get()->session(); |
| } |
| |
| void WebXRHand::updateFromInputSource(const PlatformXR::Device::FrameData::InputSource& inputSource) |
| { |
| if (!inputSource.handJoints) { |
| m_hasMissingPoses = true; |
| return; |
| } |
| |
| auto& handJoints = *(inputSource.handJoints); |
| if (handJoints.size() != m_joints.size()) { |
| m_hasMissingPoses = true; |
| return; |
| } |
| |
| bool hasMissingPoses = false; |
| for (size_t i = 0; i < handJoints.size(); ++i) { |
| if (!handJoints[i]) |
| hasMissingPoses = true; |
| |
| m_joints[i]->updateFromJoint(handJoints[i]); |
| } |
| m_hasMissingPoses = hasMissingPoses; |
| } |
| |
| } |
| |
| #endif |