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50
51#include <QApplication>
52#include <QPlainTextEdit>
53#include <QVulkanInstance>
54#include <QLibraryInfo>
55#include <QLoggingCategory>
56#include <QPointer>
57#include "hellovulkanwidget.h"
58
59Q_LOGGING_CATEGORY(lcVk, "qt.vulkan")
60
61static QPointer<QPlainTextEdit> messageLogWidget;
62static QtMessageHandler oldMessageHandler = nullptr;
63
64static void messageHandler(QtMsgType msgType, const QMessageLogContext &logContext, const QString &text)
65{
66 if (!messageLogWidget.isNull())
67 messageLogWidget->appendPlainText(text);
68 if (oldMessageHandler)
69 oldMessageHandler(msgType, logContext, text);
70}
71
72int main(int argc, char *argv[])
73{
74 QApplication app(argc, argv);
75
76 messageLogWidget = new QPlainTextEdit(QLatin1String(QLibraryInfo::build()) + QLatin1Char('\n'));
77 messageLogWidget->setReadOnly(true);
78
79 oldMessageHandler = qInstallMessageHandler(messageHandler);
80
81 QLoggingCategory::setFilterRules(QStringLiteral("qt.vulkan=true"));
82
83 QVulkanInstance inst;
84
85#ifndef Q_OS_ANDROID
86 inst.setLayers(QByteArrayList() << "VK_LAYER_LUNARG_standard_validation");
87#else
88 inst.setLayers(QByteArrayList()
89 << "VK_LAYER_GOOGLE_threading"
90 << "VK_LAYER_LUNARG_parameter_validation"
91 << "VK_LAYER_LUNARG_object_tracker"
92 << "VK_LAYER_LUNARG_core_validation"
93 << "VK_LAYER_LUNARG_image"
94 << "VK_LAYER_LUNARG_swapchain"
95 << "VK_LAYER_GOOGLE_unique_objects");
96#endif
97
98 if (!inst.create())
99 qFatal(msg: "Failed to create Vulkan instance: %d", inst.errorCode());
100
101 VulkanWindow *vulkanWindow = new VulkanWindow;
102 vulkanWindow->setVulkanInstance(&inst);
103
104 MainWindow mainWindow(vulkanWindow, messageLogWidget.data());
105 QObject::connect(sender: vulkanWindow, signal: &VulkanWindow::vulkanInfoReceived, receiver: &mainWindow, slot: &MainWindow::onVulkanInfoReceived);
106 QObject::connect(sender: vulkanWindow, signal: &VulkanWindow::frameQueued, receiver: &mainWindow, slot: &MainWindow::onFrameQueued);
107
108 mainWindow.resize(w: 1024, h: 768);
109 mainWindow.show();
110
111 return app.exec();
112}
113

source code of qtbase/examples/vulkan/hellovulkanwidget/main.cpp