vulkaninstance.cpp

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++ // Copyright (C) 2020 Klaralvdalens Datakonsult AB (KDAB).

++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only

++

++ #include "vulkaninstance_p.h"

++

++ #if QT_CONFIG(qt3d_vulkan)

++

++ #include <QVulkanInstance>

++

++ QT_BEGIN_NAMESPACE

++

++ namespace Qt3DRender {

++

++ QVulkanInstance &staticVulkanInstance() noexcept

++ {

++     static QVulkanInstance* vkInstance = []

++     {

++         QVulkanInstance* v = new QVulkanInstance;

++ #if defined(NDEBUG)

++         constexpr bool debug_mode = false;

++ #else

++         constexpr bool debug_mode = true;

++ #endif

++         if (debug_mode || qgetenv("QT3D_VULKAN_VALIDATION").toInt())

++             v->setLayers({ "VK_LAYER_KHRONOS_validation" });

++

++         if (!v->create())

++             qWarning("Failed to create Vulkan instance");

++

++         return v;

++     }();

++     return *vkInstance;

++ }

++

++ } // Qt3DRender

++

++ QT_END_NAMESPACE

++

++ #endif