minor tweaks

Zhao Yuhang

2025-05-30 a4d0b98d40d0f740742e393db774ee53302ec64c

 examples/qml/main.cpp

@@ -4,22 +4,32 @@

#include <QtGui/QGuiApplication>
#include <QtQml/QQmlApplicationEngine>
#include <QtQml/QQmlContext>
#include <QtQuick/QQuickWindow>

#include <QWKQuick/qwkquickglobal.h>

#ifdef Q_OS_WIN
// Indicates to hybrid graphics systems to prefer the discrete part by default.
extern "C" {
    Q_DECL_EXPORT unsigned long NvOptimusEnablement = 0x00000001;
    Q_DECL_EXPORT int AmdPowerXpressRequestHighPerformance = 1;
}
#endif

int main(int argc, char *argv[]) {
    qputenv("QT_WIN_DEBUG_CONSOLE", "attach");
    qputenv("QT_WIN_DEBUG_CONSOLE", "attach"); // or "new": create a separate console window
    qputenv("QSG_INFO", "1");
    qputenv("QSG_NO_VSYNC", "1");
#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
    qputenv("QT_QUICK_CONTROLS_STYLE", "Basic");
#else
    qputenv("QT_QUICK_CONTROLS_STYLE", "Default");
#endif
#if 0
    qputenv("QSG_RHI_BACKEND", "opengl");
    //qputenv("QSG_RHI_HDR", "scrgb");
    //qputenv("QSG_RHI_BACKEND", "opengl"); // other options: d3d11, d3d12, vulkan
    //qputenv("QSG_RHI_HDR", "scrgb"); // other options: hdr10, p3
    //qputenv("QT_QPA_DISABLE_REDIRECTION_SURFACE", "1");
#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
    QGuiApplication::setHighDpiScaleFactorRoundingPolicy(
        Qt::HighDpiScaleFactorRoundingPolicy::PassThrough);
#endif
@@ -27,6 +37,12 @@
    // Make sure alpha channel is requested, our special effects on Windows depends on it.
    QQuickWindow::setDefaultAlphaBuffer(true);
    QQmlApplicationEngine engine;
#if QT_VERSION >= QT_VERSION_CHECK(6, 7, 0)
    const bool curveRenderingAvailable = true;
#else
    const bool curveRenderingAvailable = false;
#endif
    engine.rootContext()->setContextProperty(QStringLiteral("$curveRenderingAvailable"), QVariant(curveRenderingAvailable));
    QWK::registerTypes(&engine);
    engine.load(QUrl(QStringLiteral("qrc:///main.qml")));
    return application.exec();