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-rw-r--r--examples/opengl/threadedqopenglwidget/glwidget.cpp118
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diff --git a/examples/opengl/threadedqopenglwidget/glwidget.cpp b/examples/opengl/threadedqopenglwidget/glwidget.cpp
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--- a/examples/opengl/threadedqopenglwidget/glwidget.cpp
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-/****************************************************************************
-**
-** Copyright (C) 2022 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the examples of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:BSD$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** BSD License Usage
-** Alternatively, 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 The Qt Company Ltd 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 "glwidget.h"
-#include "renderer.h"
-
-#include <qmath.h>
-#include <QGuiApplication>
-
-GLWidget::GLWidget(QWidget *parent)
- : QOpenGLWidget(parent)
-{
- setMinimumSize(300, 250);
-
- connect(this, &QOpenGLWidget::aboutToCompose, this, &GLWidget::onAboutToCompose);
- connect(this, &QOpenGLWidget::frameSwapped, this, &GLWidget::onFrameSwapped);
- connect(this, &QOpenGLWidget::aboutToResize, this, &GLWidget::onAboutToResize);
- connect(this, &QOpenGLWidget::resized, this, &GLWidget::onResized);
-
- m_thread = new QThread;
- m_renderer = new Renderer(this);
- m_renderer->moveToThread(m_thread);
- connect(m_thread, &QThread::finished, m_renderer, &QObject::deleteLater);
-
- connect(this, &GLWidget::renderRequested, m_renderer, &Renderer::render);
- connect(m_renderer, &Renderer::contextWanted, this, &GLWidget::grabContext);
-
- m_thread->start();
-}
-
-GLWidget::~GLWidget()
-{
- m_renderer->prepareExit();
- m_thread->quit();
- m_thread->wait();
- delete m_thread;
-}
-
-void GLWidget::onAboutToCompose()
-{
- // We are on the gui thread here. Composition is about to
- // begin. Wait until the render thread finishes.
- m_renderer->lockRenderer();
-}
-
-void GLWidget::onFrameSwapped()
-{
- m_renderer->unlockRenderer();
- // Assuming a blocking swap, our animation is driven purely by the
- // vsync in this example.
- emit renderRequested();
-}
-
-void GLWidget::onAboutToResize()
-{
- m_renderer->lockRenderer();
-}
-
-void GLWidget::onResized()
-{
- m_renderer->unlockRenderer();
-}
-
-void GLWidget::grabContext()
-{
- m_renderer->lockRenderer();
- QMutexLocker lock(m_renderer->grabMutex());
- context()->moveToThread(m_thread);
- m_renderer->grabCond()->wakeAll();
- m_renderer->unlockRenderer();
-}