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/*
* Copyright (C) 2021 Igalia, S.L.
* Copyright (C) 2022 Apple Inc. All rights reserved.
*
* 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 "OpenXRExtensions.h"
#if ENABLE(WEBXR) && USE(OPENXR)
using namespace WebCore;
namespace PlatformXR {
std::unique_ptr<OpenXRExtensions> OpenXRExtensions::create()
{
uint32_t extensionCount { 0 };
XrResult result = xrEnumerateInstanceExtensionProperties(nullptr, 0, &extensionCount, nullptr);
if (XR_FAILED(result) || !extensionCount) {
LOG(XR, "xrEnumerateInstanceExtensionProperties(): no extensions\n");
return nullptr;
}
Vector<XrExtensionProperties> extensions(extensionCount, [] {
return createStructure<XrExtensionProperties, XR_TYPE_EXTENSION_PROPERTIES>();
}());
result = xrEnumerateInstanceExtensionProperties(nullptr, extensionCount, &extensionCount, extensions.data());
if (XR_FAILED(result)) {
LOG(XR, "xrEnumerateInstanceExtensionProperties() failed: %d\n", result);
return nullptr;
}
return makeUnique<OpenXRExtensions>(WTFMove(extensions));
}
OpenXRExtensions::OpenXRExtensions(Vector<XrExtensionProperties>&& extensions)
: m_extensions(WTFMove(extensions))
{
}
void OpenXRExtensions::loadMethods(XrInstance instance)
{
#if USE(EGL)
m_methods.getProcAddressFunc = eglGetProcAddress;
#endif
xrGetInstanceProcAddr(instance, "xrGetOpenGLGraphicsRequirementsKHR", reinterpret_cast<PFN_xrVoidFunction*>(&m_methods.xrGetOpenGLGraphicsRequirementsKHR));
}
bool OpenXRExtensions::isExtensionSupported(const char* name) const
{
auto position = m_extensions.findIf([name](auto& property) {
return !strcmp(property.extensionName, name);
});
return position != notFound;
}
} // namespace PlatformXR
#endif // ENABLE(WEBXR) && USE(OPENXR)
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