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++ // Copyright (C) 2017 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
++
++ #include <QApplication>
++ #include <QLoggingCategory>
++ #include "mainwindow.h"
++ #include "vulkanwindow.h"
++
++ int main(int argc, char **argv)
++ {
++ QApplication app(argc, argv);
++
++ const bool dbg = qEnvironmentVariableIntValue("QT_VK_DEBUG");
++
++ QVulkanInstance inst;
++
++ if (dbg) {
++ QLoggingCategory::setFilterRules(QStringLiteral("qt.vulkan=true"));
++ inst.setLayers({ "VK_LAYER_KHRONOS_validation" });
++ }
++
++ if (!inst.create())
++ qFatal("Failed to create Vulkan instance: %d", inst.errorCode());
++
++ VulkanWindow *vulkanWindow = new VulkanWindow(dbg);
++ vulkanWindow->setVulkanInstance(&inst);
++
++ MainWindow mainWindow(vulkanWindow);
++ mainWindow.resize(1024, 768);
++ mainWindow.show();
++
++ return app.exec();
++ }