diff options
Diffstat (limited to 'examples/opengl/threadedqopenglwidget/glwidget.cpp')
-rw-r--r-- | examples/opengl/threadedqopenglwidget/glwidget.cpp | 118 |
1 files changed, 0 insertions, 118 deletions
diff --git a/examples/opengl/threadedqopenglwidget/glwidget.cpp b/examples/opengl/threadedqopenglwidget/glwidget.cpp deleted file mode 100644 index 8ffbddd2e3..0000000000 --- a/examples/opengl/threadedqopenglwidget/glwidget.cpp +++ /dev/null @@ -1,118 +0,0 @@ -/**************************************************************************** -** -** 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(); -} |