main.cpp - mozsearch

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// Copyright (C) 2026 The Qt Company Ltd.

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

#include "benchwidget.h"

#include <QApplication>

#include <QButtonGroup>

#include <QDialog>

#include <QDialogButtonBox>

#include <QLabel>

#include <QList>

#include <QRadioButton>

#include <QVBoxLayout>

#include <QtGlobal>

namespace {

struct ApiEntry

    QRhiWidget::Api api;

    const char *label;

};

QList<ApiEntry> supportedApis()

    QList<ApiEntry> apis;

#if QT_CONFIG(opengl)

    apis.append({ QRhiWidget::Api::OpenGL, "OpenGL" });

#endif

#if QT_CONFIG(vulkan)

    apis.append({ QRhiWidget::Api::Vulkan, "Vulkan" });

#endif

#ifdef Q_OS_WIN

    apis.append({ QRhiWidget::Api::Direct3D11, "Direct3D 11" });

    apis.append({ QRhiWidget::Api::Direct3D12, "Direct3D 12" });

#endif

#ifdef Q_OS_DARWIN

    apis.append({ QRhiWidget::Api::Metal, "Metal" });

#endif

    apis.append({ QRhiWidget::Api::Null, "Null" });

    return apis;

QRhiWidget::Api defaultApi()

#ifdef Q_OS_DARWIN

    return QRhiWidget::Api::Metal;

#elif defined(Q_OS_WIN)

    return QRhiWidget::Api::Direct3D11;

#else

    return QRhiWidget::Api::OpenGL;

#endif

} // namespace

int main(int argc, char *argv[])

    QApplication app(argc, argv);

    qputenv("QSG_INFO", "1");

    const QList<ApiEntry> apis = supportedApis();

    const QRhiWidget::Api preselect = defaultApi();

    QRhiWidget::Api chosen = preselect;

        // The dialog is scoped so it is destroyed before BenchWidget is created.

        // On Android, QAndroidPlatformWindow picks SurfaceView (vsync-throttled

        // via SurfaceFlinger) only when the BenchWidget's platform window is the

        // sole window on the screen at initialize() time. If the dialog's window

        // is still around, BenchWidget falls back to TextureView, whose

        // SurfaceTexture-backed EGL surface does not block on display vsync, and

        // the measured fps no longer reflects the panel refresh rate.

        QDialog dialog;

        dialog.setWindowTitle(QStringLiteral("cpwidgettest - select graphics API"));

        auto *layout = new QVBoxLayout(&dialog);

        layout->addWidget(new QLabel(QStringLiteral("Select the QRhi backend to use:")));

        auto *group = new QButtonGroup(&dialog);

        for (int i = 0; i < apis.size(); ++i) {

            auto *button = new QRadioButton(QString::fromLatin1(apis[i].label));

            layout->addWidget(button);

            group->addButton(button, i);

            if (apis[i].api == preselect)

                button->setChecked(true);

        if (group->checkedId() < 0 && !apis.isEmpty())

            group->button(0)->setChecked(true);

        auto *buttons = new QDialogButtonBox(QDialogButtonBox::Ok | QDialogButtonBox::Cancel);

        layout->addWidget(buttons);

        QObject::connect(buttons, &QDialogButtonBox::accepted, &dialog, &QDialog::accept);

        QObject::connect(buttons, &QDialogButtonBox::rejected, &dialog, &QDialog::reject);

        if (dialog.exec() != QDialog::Accepted)

            return 0;

        const int idx = group->checkedId();

        chosen = idx >= 0 ? apis[idx].api : preselect;

    BenchWidget widget(chosen);

    widget.resize(800, 600);

    widget.setWindowTitle("cpwidgettest");

    widget.show();

    return QCoreApplication::exec();