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| 2 | ** |
| 3 | ** Copyright (C) 2016 Klaralvdalens Datakonsult AB (KDAB). |
| 4 | ** Contact: https://www.qt.io/licensing/ |
| 5 | ** |
| 6 | ** This file is part of the Qt3D module of the Qt Toolkit. |
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| 8 | ** $QT_BEGIN_LICENSE:LGPL$ |
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| 17 | ** GNU Lesser General Public License Usage |
| 18 | ** Alternatively, this file may be used under the terms of the GNU Lesser |
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| 24 | ** |
| 25 | ** GNU General Public License Usage |
| 26 | ** Alternatively, this file may be used under the terms of the GNU |
| 27 | ** General Public License version 2.0 or (at your option) the GNU General |
| 28 | ** Public license version 3 or any later version approved by the KDE Free |
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| 38 | ****************************************************************************/ |
| 39 | |
| 40 | #include "offscreensurfacehelper_p.h" |
| 41 | |
| 42 | #include <Qt3DRender/private/abstractrenderer_p.h> |
| 43 | #include <QtGui/qoffscreensurface.h> |
| 44 | #include <QtGui/qsurfaceformat.h> |
| 45 | #include <QtCore/qcoreapplication.h> |
| 46 | #include <QtCore/qthread.h> |
| 47 | |
| 48 | QT_BEGIN_NAMESPACE |
| 49 | |
| 50 | namespace Qt3DRender { |
| 51 | namespace Render { |
| 52 | |
| 53 | /*! \internal */ |
| 54 | OffscreenSurfaceHelper::OffscreenSurfaceHelper(AbstractRenderer *renderer, |
| 55 | QObject *parent) |
| 56 | : QObject(parent) |
| 57 | , m_renderer(renderer) |
| 58 | , m_offscreenSurface(nullptr) |
| 59 | { |
| 60 | Q_ASSERT(renderer); |
| 61 | } |
| 62 | |
| 63 | /*! |
| 64 | * \internal |
| 65 | * Called in context of main thread to create an offscreen surface |
| 66 | * which can later be made current with the Qt 3D OpenGL context to |
| 67 | * then allow graphics resources to be released cleanly. |
| 68 | */ |
| 69 | void OffscreenSurfaceHelper::createOffscreenSurface() |
| 70 | { |
| 71 | Q_ASSERT(QThread::currentThread() == QCoreApplication::instance()->thread()); |
| 72 | m_offscreenSurface = new QOffscreenSurface; |
| 73 | m_offscreenSurface->setParent(this); |
| 74 | m_offscreenSurface->setFormat(m_renderer->format()); |
| 75 | m_offscreenSurface->setScreen(m_renderer->screen()); |
| 76 | m_offscreenSurface->create(); |
| 77 | } |
| 78 | |
| 79 | } // namespace Render |
| 80 | } // namespace Qt3DRender |
| 81 | |
| 82 | QT_END_NAMESPACE |
| 83 |