qt5base-lts/examples/opengl/hellowindow/main.cpp

126 lines
5.1 KiB
C++
Raw Normal View History

/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
** the names of its contributors may be used to endorse or promote
** products derived from this software without specific prior written
** permission.
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QGuiApplication>
#include <QPlatformIntegration>
#include <private/qguiapplication_p.h>
#include <QScreen>
#include <QThread>
#include "hellowindow.h"
int main(int argc, char **argv)
{
QGuiApplication app(argc, argv);
const bool multipleWindows =
QGuiApplicationPrivate::platformIntegration()->hasCapability(QPlatformIntegration::ThreadedOpenGL)
&& !QGuiApplication::arguments().contains(QLatin1String("--single"));
QScreen *screen = QGuiApplication::primaryScreen();
QRect screenGeometry = screen->availableGeometry();
QSurfaceFormat format;
format.setDepthBufferSize(16);
format.setSamples(4);
QPoint center = QPoint(screenGeometry.center().x(), screenGeometry.top() + 80);
QSize windowSize(400, 320);
int delta = 40;
Renderer *rendererA = new Renderer(format);
HelloWindow *windowA = new HelloWindow(rendererA);
windowA->setGeometry(QRect(center, windowSize).translated(-windowSize.width() - delta / 2, 0));
windowA->setWindowTitle(QLatin1String("Thread A - Context A"));
windowA->setVisible(true);
QList<QThread *> renderThreads;
if (multipleWindows) {
Renderer *rendererB = new Renderer(format, rendererA);
QThread *renderThread = new QThread;
rendererB->moveToThread(renderThread);
renderThreads << renderThread;
HelloWindow *windowB = new HelloWindow(rendererA);
windowB->setGeometry(QRect(center, windowSize).translated(delta / 2, 0));
windowB->setWindowTitle(QLatin1String("Thread A - Context A"));
windowB->setVisible(true);
HelloWindow *windowC = new HelloWindow(rendererB);
windowC->setGeometry(QRect(center, windowSize).translated(-windowSize.width() / 2, windowSize.height() + delta));
windowC->setWindowTitle(QLatin1String("Thread B - Context B"));
windowC->setVisible(true);
for (int i = 1; i < QGuiApplication::screens().size(); ++i) {
QScreen *screen = QGuiApplication::screens().at(i);
Renderer *renderer = new Renderer(format, rendererA, screen);
renderThread = new QThread;
renderer->moveToThread(renderThread);
renderThreads << renderThread;
QRect screenGeometry = screen->availableGeometry();
QPoint center = screenGeometry.center();
QSize windowSize = screenGeometry.size() * 0.8;
HelloWindow *window = new HelloWindow(renderer);
window->setScreen(screen);
window->setGeometry(QRect(center, windowSize).translated(-windowSize.width() / 2, -windowSize.height() / 2));
QChar id = QChar('B' + i);
window->setWindowTitle(QLatin1String("Thread ") + id + QLatin1String(" - Context ") + id);
window->setVisible(true);
}
}
for (int i = 0; i < renderThreads.size(); ++i) {
QObject::connect(qGuiApp, SIGNAL(lastWindowClosed()), renderThreads.at(i), SLOT(quit()));
renderThreads.at(i)->start();
}
app.exec();
for (int i = 0; i < renderThreads.size(); ++i)
renderThreads.at(i)->wait();
}