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/*
* Copyright (C) 2021 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 <wtf/TZoneMallocInlines.h>
using namespace WebCore;
namespace PlatformXR {
WTF_MAKE_TZONE_ALLOCATED_IMPL(OpenXRInput);
std::unique_ptr<OpenXRInput> OpenXRInput::create(XrInstance instance, XrSession session, XrSpace space)
{
auto input = std::unique_ptr<OpenXRInput>(new OpenXRInput(instance, session, space));
if (XR_FAILED(input->initialize()))
return nullptr;
return input;
}
OpenXRInput::OpenXRInput(XrInstance instance, XrSession session, XrSpace space)
: m_instance(instance)
, m_session(session)
, m_localSpace(space)
{
}
XrResult OpenXRInput::initialize()
{
std::array<XRHandedness, 2> hands {
XRHandedness::Left, XRHandedness::Right
};
for (auto handedness : hands) {
m_handleIndex++;;
if (auto inputSource = OpenXRInputSource::create(m_instance, m_session, handedness, m_handleIndex))
m_inputSources.append(makeUniqueRefFromNonNullUniquePtr(WTFMove(inputSource)));
}
OpenXRInputSource::SuggestedBindings bindings;
Vector<XrActionSet> actionSets;
for (auto& input : m_inputSources) {
input->suggestBindings(bindings);
actionSets.append(input->actionSet());
}
for (auto& binding : bindings) {
auto suggestedBinding = createStructure<XrInteractionProfileSuggestedBinding, XR_TYPE_INTERACTION_PROFILE_SUGGESTED_BINDING>();
RETURN_RESULT_IF_FAILED(xrStringToPath(m_instance, binding.key, &suggestedBinding.interactionProfile), m_instance);
suggestedBinding.countSuggestedBindings = binding.value.size();
suggestedBinding.suggestedBindings = binding.value.data();
RETURN_RESULT_IF_FAILED(xrSuggestInteractionProfileBindings(m_instance, &suggestedBinding), m_instance);
}
auto attachInfo = createStructure<XrSessionActionSetsAttachInfo, XR_TYPE_SESSION_ACTION_SETS_ATTACH_INFO>();
attachInfo.countActionSets = actionSets.size();
attachInfo.actionSets = actionSets.data();
RETURN_RESULT_IF_FAILED(xrAttachSessionActionSets(m_session, &attachInfo), m_instance);
return XR_SUCCESS;
}
Vector<FrameData::InputSource> OpenXRInput::collectInputSources(const XrFrameState& frameState) const
{
Vector<XrActiveActionSet> actionSets;
for (auto& input : m_inputSources)
actionSets.append(XrActiveActionSet { input->actionSet(), XR_NULL_PATH });
auto syncInfo = createStructure<XrActionsSyncInfo, XR_TYPE_ACTIONS_SYNC_INFO>();
syncInfo.countActiveActionSets = actionSets.size();
syncInfo.activeActionSets = actionSets.data();
RETURN_IF_FAILED(xrSyncActions(m_session, &syncInfo), "xrSyncActions", m_instance, { });
Vector<FrameData::InputSource> result;
for (auto& input : m_inputSources) {
if (auto data = input->getInputSource(m_localSpace, frameState))
result.append(*data);
}
return result;
}
void OpenXRInput::updateInteractionProfile()
{
for (auto& input : m_inputSources)
input->updateInteractionProfile();
}
} // namespace PlatformXR
#endif // ENABLE(WEBXR) && USE(OPENXR)
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