<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html> <html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>window_multithreaded.h Example File | Qt Quick 5.11</title> <link rel="stylesheet" type="text/css" href="style/offline-simple.css" /> <script type="text/javascript"> document.getElementsByTagName("link").item(0).setAttribute("href", "style/offline.css"); // loading style sheet breaks anchors that were jumped to before // so force jumping to anchor again setTimeout(function() { var anchor = location.hash; // need to jump to different anchor first (e.g. none) location.hash = "#"; setTimeout(function() { location.hash = anchor; }, 0); }, 0); </script> </head> <body> <div class="header" id="qtdocheader"> <div class="main"> <div class="main-rounded"> <div class="navigationbar"> <table><tr> <td ><a href="../qtdoc/index.html">Qt 5.11</a></td><td ><a href="qtquick-index.html">Qt Quick</a></td><td ><a href="qtquick-rendercontrol-example.html">QQuickRenderControl Example</a></td><td >window_multithreaded.h Example File</td></tr></table><table class="buildversion"><tr> <td id="buildversion" width="100%" align="right">Qt 5.11.2 Reference Documentation</td> </tr></table> </div> </div> <div class="content"> <div class="line"> <div class="content mainContent"> <div class="sidebar"><div class="sidebar-content" id="sidebar-content"></div></div> <h1 class="title">window_multithreaded.h Example File</h1> <span class="subtitle">rendercontrol/window_multithreaded.h</span> <!-- $$$rendercontrol/window_multithreaded.h-description --> <div class="descr"> <a name="details"></a> <pre class="cpp"> <span class="comment">/**************************************************************************** ** ** Copyright (C) 2017 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." ** ** $QT_END_LICENSE$ ** ****************************************************************************/</span> <span class="preprocessor">#ifndef WINDOW_MULTITHREADED_H</span> <span class="preprocessor">#define WINDOW_MULTITHREADED_H</span> <span class="preprocessor">#include <QWindow></span> <span class="preprocessor">#include <QMatrix4x4></span> <span class="preprocessor">#include <QThread></span> <span class="preprocessor">#include <QWaitCondition></span> <span class="preprocessor">#include <QMutex></span> QT_FORWARD_DECLARE_CLASS(<span class="type"><a href="../qtgui/qopenglcontext.html">QOpenGLContext</a></span>) QT_FORWARD_DECLARE_CLASS(<span class="type"><a href="../qtgui/qopenglframebufferobject.html">QOpenGLFramebufferObject</a></span>) QT_FORWARD_DECLARE_CLASS(<span class="type"><a href="../qtgui/qoffscreensurface.html">QOffscreenSurface</a></span>) QT_FORWARD_DECLARE_CLASS(<span class="type"><a href="qquickrendercontrol.html">QQuickRenderControl</a></span>) QT_FORWARD_DECLARE_CLASS(<span class="type"><a href="qquickwindow.html">QQuickWindow</a></span>) QT_FORWARD_DECLARE_CLASS(<span class="type"><a href="../qtqml/qqmlengine.html">QQmlEngine</a></span>) QT_FORWARD_DECLARE_CLASS(<span class="type"><a href="../qtqml/qqmlcomponent.html">QQmlComponent</a></span>) QT_FORWARD_DECLARE_CLASS(<span class="type"><a href="qquickitem.html">QQuickItem</a></span>) <span class="keyword">class</span> CubeRenderer; <span class="keyword">class</span> QuickRenderer : <span class="keyword">public</span> <span class="type"><a href="../qtcore/qobject.html">QObject</a></span> { Q_OBJECT <span class="keyword">public</span>: QuickRenderer(); <span class="type">void</span> requestInit(); <span class="type">void</span> requestRender(); <span class="type">void</span> requestResize(); <span class="type">void</span> requestStop(); <span class="type"><a href="../qtcore/qwaitcondition.html">QWaitCondition</a></span> <span class="operator">*</span><span class="type">cond</span>() { <span class="keyword">return</span> <span class="operator">&</span>m_cond; } <span class="type"><a href="../qtcore/qmutex.html">QMutex</a></span> <span class="operator">*</span>mutex() { <span class="keyword">return</span> <span class="operator">&</span>m_mutex; } <span class="type">void</span> setContext(<span class="type"><a href="../qtgui/qopenglcontext.html">QOpenGLContext</a></span> <span class="operator">*</span>ctx) { m_context <span class="operator">=</span> ctx; } <span class="type">void</span> setSurface(<span class="type"><a href="../qtgui/qoffscreensurface.html">QOffscreenSurface</a></span> <span class="operator">*</span>s) { m_surface <span class="operator">=</span> s; } <span class="type">void</span> setWindow(<span class="type"><a href="../qtgui/qwindow.html">QWindow</a></span> <span class="operator">*</span>w) { m_window <span class="operator">=</span> w; } <span class="type">void</span> setQuickWindow(<span class="type"><a href="qquickwindow.html">QQuickWindow</a></span> <span class="operator">*</span>w) { m_quickWindow <span class="operator">=</span> w; } <span class="type">void</span> setRenderControl(<span class="type"><a href="qquickrendercontrol.html">QQuickRenderControl</a></span> <span class="operator">*</span>r) { m_renderControl <span class="operator">=</span> r; } <span class="type">void</span> aboutToQuit(); <span class="keyword">private</span>: bool event(<span class="type"><a href="../qtcore/qevent.html">QEvent</a></span> <span class="operator">*</span>e) override; <span class="type">void</span> init(); <span class="type">void</span> cleanup(); <span class="type">void</span> ensureFbo(); <span class="type">void</span> render(<span class="type"><a href="../qtcore/qmutexlocker.html">QMutexLocker</a></span> <span class="operator">*</span>lock); <span class="type"><a href="../qtcore/qwaitcondition.html">QWaitCondition</a></span> m_cond; <span class="type"><a href="../qtcore/qmutex.html">QMutex</a></span> m_mutex; <span class="type"><a href="../qtgui/qopenglcontext.html">QOpenGLContext</a></span> <span class="operator">*</span>m_context; <span class="type"><a href="../qtgui/qoffscreensurface.html">QOffscreenSurface</a></span> <span class="operator">*</span>m_surface; <span class="type"><a href="../qtgui/qopenglframebufferobject.html">QOpenGLFramebufferObject</a></span> <span class="operator">*</span>m_fbo; <span class="type"><a href="../qtgui/qwindow.html">QWindow</a></span> <span class="operator">*</span>m_window; <span class="type"><a href="qquickwindow.html">QQuickWindow</a></span> <span class="operator">*</span>m_quickWindow; <span class="type"><a href="qquickrendercontrol.html">QQuickRenderControl</a></span> <span class="operator">*</span>m_renderControl; CubeRenderer <span class="operator">*</span>m_cubeRenderer; <span class="type"><a href="../qtcore/qmutex.html">QMutex</a></span> m_quitMutex; bool m_quit; }; <span class="keyword">class</span> WindowMultiThreaded : <span class="keyword">public</span> <span class="type"><a href="../qtgui/qwindow.html">QWindow</a></span> { Q_OBJECT <span class="keyword">public</span>: WindowMultiThreaded(); <span class="operator">~</span>WindowMultiThreaded(); <span class="keyword">protected</span>: <span class="type">void</span> exposeEvent(<span class="type"><a href="../qtgui/qexposeevent.html">QExposeEvent</a></span> <span class="operator">*</span>e) override; <span class="type">void</span> resizeEvent(<span class="type"><a href="../qtgui/qresizeevent.html">QResizeEvent</a></span> <span class="operator">*</span>e) override; <span class="type">void</span> mousePressEvent(<span class="type"><a href="../qtgui/qmouseevent.html">QMouseEvent</a></span> <span class="operator">*</span>e) override; <span class="type">void</span> mouseReleaseEvent(<span class="type"><a href="../qtgui/qmouseevent.html">QMouseEvent</a></span> <span class="operator">*</span>e) override; bool event(<span class="type"><a href="../qtcore/qevent.html">QEvent</a></span> <span class="operator">*</span>e) override; <span class="keyword">private</span> <span class="keyword">slots</span>: <span class="type">void</span> run(); <span class="type">void</span> requestUpdate(); <span class="type">void</span> polishSyncAndRender(); <span class="keyword">private</span>: <span class="type">void</span> startQuick(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&</span>filename); <span class="type">void</span> updateSizes(); QuickRenderer <span class="operator">*</span>m_quickRenderer; <span class="type"><a href="../qtcore/qthread.html">QThread</a></span> <span class="operator">*</span>m_quickRendererThread; <span class="type"><a href="../qtgui/qopenglcontext.html">QOpenGLContext</a></span> <span class="operator">*</span>m_context; <span class="type"><a href="../qtgui/qoffscreensurface.html">QOffscreenSurface</a></span> <span class="operator">*</span>m_offscreenSurface; <span class="type"><a href="qquickrendercontrol.html">QQuickRenderControl</a></span> <span class="operator">*</span>m_renderControl; <span class="type"><a href="qquickwindow.html">QQuickWindow</a></span> <span class="operator">*</span>m_quickWindow; <span class="type"><a href="../qtqml/qqmlengine.html">QQmlEngine</a></span> <span class="operator">*</span>m_qmlEngine; <span class="type"><a href="../qtqml/qqmlcomponent.html">QQmlComponent</a></span> <span class="operator">*</span>m_qmlComponent; <span class="type"><a href="qquickitem.html">QQuickItem</a></span> <span class="operator">*</span>m_rootItem; bool m_quickInitialized; bool m_psrRequested; }; <span class="preprocessor">#endif</span> </pre> </div> <!-- @@@rendercontrol/window_multithreaded.h --> </div> </div> </div> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2018 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners.<br/> The documentation provided herein is licensed under the terms of the <a href="http://www.gnu.org/licenses/fdl.html">GNU Free Documentation License version 1.3</a> as published by the Free Software Foundation.<br/> Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners. </p> </div> </body> </html>