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/*
* Copyright (C) 2025 Igalia, S.L.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* aint with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "config.h"
#include "OpenXRInput.h"
#if ENABLE(WEBXR) && USE(OPENXR)
#include "OpenXRInputSource.h"
#include <openxr/openxr.h>
#include <wtf/TZoneMallocInlines.h>
namespace WebKit {
WTF_MAKE_TZONE_ALLOCATED_IMPL(OpenXRInput);
std::unique_ptr<OpenXRInput> OpenXRInput::create(XrInstance instance, XrSession session, OpenXRSystemProperties&& systemProperties)
{
auto input = std::unique_ptr<OpenXRInput>(new OpenXRInput(instance, session));
if (XR_FAILED(input->initialize(WTFMove(systemProperties))))
return nullptr;
return input;
}
OpenXRInput::OpenXRInput(XrInstance instance, XrSession session)
: m_instance(instance)
, m_session(session)
{
}
OpenXRInput::~OpenXRInput() = default;
XrResult OpenXRInput::initialize(OpenXRSystemProperties&& systemProperties)
{
for (auto handedness : { PlatformXR::XRHandedness::Left, PlatformXR::XRHandedness::Right }) {
m_handleIndex++;
if (auto inputSource = OpenXRInputSource::create(m_instance, m_session, handedness, m_handleIndex, WTFMove(systemProperties)))
m_inputSources.append(makeUniqueRefFromNonNullUniquePtr(WTFMove(inputSource)));
}
OpenXRInputSource::SuggestedBindings bindings;
Vector<XrActionSet> actionSets;
actionSets.reserveInitialCapacity(m_inputSources.size());
for (const auto& inputSource : m_inputSources) {
inputSource->suggestBindings(bindings);
actionSets.append(inputSource->actionSet());
}
for (const auto& binding : bindings) {
auto suggestedBinding = createOpenXRStruct<XrInteractionProfileSuggestedBinding, XR_TYPE_INTERACTION_PROFILE_SUGGESTED_BINDING>();
if (XR_FAILED(xrStringToPath(m_instance, binding.key, &suggestedBinding.interactionProfile)))
continue;
suggestedBinding.countSuggestedBindings = binding.value.size();
suggestedBinding.suggestedBindings = binding.value.span().data();
CHECK_XRCMD(xrSuggestInteractionProfileBindings(m_instance, &suggestedBinding));
}
auto attachInfo = createOpenXRStruct<XrSessionActionSetsAttachInfo, XR_TYPE_SESSION_ACTION_SETS_ATTACH_INFO>();
attachInfo.countActionSets = actionSets.size();
attachInfo.actionSets = actionSets.span().data();
return CHECK_XRCMD(xrAttachSessionActionSets(m_session, &attachInfo));
}
Vector<PlatformXR::FrameData::InputSource> OpenXRInput::collectInputSources(const XrFrameState& frameState, XrSpace space) const
{
Vector<XrActiveActionSet> actionSets;
actionSets.reserveInitialCapacity(m_inputSources.size());
for (const auto& input : m_inputSources)
actionSets.append(XrActiveActionSet { input->actionSet(), XR_NULL_PATH });
auto syncInfo = createOpenXRStruct<XrActionsSyncInfo, XR_TYPE_ACTIONS_SYNC_INFO>();
syncInfo.countActiveActionSets = actionSets.size();
syncInfo.activeActionSets = actionSets.span().data();
CHECK_XRCMD(xrSyncActions(m_session, &syncInfo));
Vector<PlatformXR::FrameData::InputSource> result;
result.reserveInitialCapacity(m_inputSources.size());
for (auto& input : m_inputSources) {
if (auto data = input->collectInputSource(space, frameState))
result.append(*data);
}
return result;
}
void OpenXRInput::updateInteractionProfile()
{
for (auto& input : m_inputSources)
input->updateInteractionProfile();
}
} // namespace WebKit
#endif // ENABLE(WEBXR) && USE(OPENXR)
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