| 1 | /**************************************************************************** | 
| 2 | ** | 
| 3 | ** Copyright (C) 2017 The Qt Company Ltd. | 
| 4 | ** Contact: http://www.qt.io/licensing/ | 
| 5 | ** | 
| 6 | ** This file is part of the Qt3D module of the Qt Toolkit. | 
| 7 | ** | 
| 8 | ** $QT_BEGIN_LICENSE:LGPL3$ | 
| 9 | ** Commercial License Usage | 
| 10 | ** Licensees holding valid commercial Qt licenses may use this file in | 
| 11 | ** accordance with the commercial license agreement provided with the | 
| 12 | ** Software or, alternatively, in accordance with the terms contained in | 
| 13 | ** a written agreement between you and The Qt Company. For licensing terms | 
| 14 | ** and conditions see http://www.qt.io/terms-conditions. For further | 
| 15 | ** information use the contact form at http://www.qt.io/contact-us. | 
| 16 | ** | 
| 17 | ** GNU Lesser General Public License Usage | 
| 18 | ** Alternatively, this file may be used under the terms of the GNU Lesser | 
| 19 | ** General Public License version 3 as published by the Free Software | 
| 20 | ** Foundation and appearing in the file LICENSE.LGPLv3 included in the | 
| 21 | ** packaging of this file. Please review the following information to | 
| 22 | ** ensure the GNU Lesser General Public License version 3 requirements | 
| 23 | ** will be met: https://www.gnu.org/licenses/lgpl.html. | 
| 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 later as published by the Free | 
| 28 | ** Software Foundation and appearing in the file LICENSE.GPL included in | 
| 29 | ** the packaging of this file. Please review the following information to | 
| 30 | ** ensure the GNU General Public License version 2.0 requirements will be | 
| 31 | ** met: http://www.gnu.org/licenses/gpl-2.0.html. | 
| 32 | ** | 
| 33 | ** $QT_END_LICENSE$ | 
| 34 | ** | 
| 35 | ****************************************************************************/ | 
| 36 |  | 
| 37 | #include "qscene2d.h" | 
| 38 | #include "qscene2d_p.h" | 
| 39 | #include "scene2d_p.h" | 
| 40 | #include "scene2dmanager_p.h" | 
| 41 | #include "scene2devent_p.h" | 
| 42 | #include "scene2dsharedobject_p.h" | 
| 43 |  | 
| 44 | QT_BEGIN_NAMESPACE | 
| 45 |  | 
| 46 | using namespace Qt3DCore; | 
| 47 |  | 
| 48 | namespace Qt3DRender { | 
| 49 |  | 
| 50 | namespace Quick { | 
| 51 |  | 
| 52 |  | 
| 53 | /*! | 
| 54 |     \internal | 
| 55 |      Constructs object shared by the front-end and back-end to synchronize the rendering. | 
| 56 |  */ | 
| 57 | Scene2DSharedObject::Scene2DSharedObject(Scene2DManager *manager) | 
| 58 |     : m_renderControl(nullptr) | 
| 59 |     , m_quickWindow(nullptr) | 
| 60 |     , m_renderManager(manager) | 
| 61 |     , m_surface(nullptr) | 
| 62 |     , m_renderThread(nullptr) | 
| 63 |     , m_renderObject(nullptr) | 
| 64 |     , m_disallowed(false) | 
| 65 |     , m_quit(false) | 
| 66 |     , m_requestSync(false) | 
| 67 |     , m_prepared(false) | 
| 68 |     , m_initialized(false) | 
| 69 | { | 
| 70 | } | 
| 71 |  | 
| 72 | Scene2DSharedObject::~Scene2DSharedObject() | 
| 73 | { | 
| 74 | } | 
| 75 |  | 
| 76 | void Scene2DSharedObject::cleanup() | 
| 77 | { | 
| 78 |     delete m_renderControl; | 
| 79 |     delete m_quickWindow; | 
| 80 |     delete m_surface; | 
| 81 |     m_renderControl = nullptr; | 
| 82 |     m_quickWindow = nullptr; | 
| 83 |     m_surface = nullptr; | 
| 84 |     m_initialized = false; | 
| 85 | } | 
| 86 |  | 
| 87 | bool Scene2DSharedObject::canRender() const | 
| 88 | { | 
| 89 |     return m_initialized && m_prepared && !m_disallowed; | 
| 90 | } | 
| 91 |  | 
| 92 | bool Scene2DSharedObject::isInitialized() const | 
| 93 | { | 
| 94 |     return m_initialized; | 
| 95 | } | 
| 96 |  | 
| 97 | void Scene2DSharedObject::disallowRender() | 
| 98 | { | 
| 99 |     m_disallowed = true; | 
| 100 | } | 
| 101 |  | 
| 102 | void Scene2DSharedObject::setInitialized() | 
| 103 | { | 
| 104 |     m_initialized = true; | 
| 105 | } | 
| 106 |  | 
| 107 | bool Scene2DSharedObject::isPrepared() const | 
| 108 | { | 
| 109 |     return m_prepared; | 
| 110 | } | 
| 111 |  | 
| 112 | void Scene2DSharedObject::setPrepared() | 
| 113 | { | 
| 114 |     m_prepared = true; | 
| 115 | } | 
| 116 |  | 
| 117 | // not protected, call only from main thread | 
| 118 | bool Scene2DSharedObject::isQuit() const | 
| 119 | { | 
| 120 |     Q_ASSERT(QThread::currentThread() == QCoreApplication::instance()->thread()); | 
| 121 |     return m_quit; | 
| 122 | } | 
| 123 |  | 
| 124 | // not protected, call only from main thread | 
| 125 | void Scene2DSharedObject::requestQuit() | 
| 126 | { | 
| 127 |     Q_ASSERT(QThread::currentThread() == QCoreApplication::instance()->thread()); | 
| 128 |     m_quit = true; | 
| 129 |     QCoreApplication::postEvent(receiver: m_renderObject, event: new Scene2DEvent(Scene2DEvent::Quit)); | 
| 130 | } | 
| 131 |  | 
| 132 | bool Scene2DSharedObject::isSyncRequested() const | 
| 133 | { | 
| 134 |     return m_requestSync; | 
| 135 | } | 
| 136 |  | 
| 137 | void Scene2DSharedObject::requestRender(bool sync) | 
| 138 | { | 
| 139 |     m_requestSync = sync; | 
| 140 |     QCoreApplication::postEvent(receiver: m_renderObject, event: new Scene2DEvent(Scene2DEvent::Render)); | 
| 141 | } | 
| 142 |  | 
| 143 | void Scene2DSharedObject::wait() | 
| 144 | { | 
| 145 |     m_cond.wait(lockedMutex: &m_mutex); | 
| 146 | } | 
| 147 |  | 
| 148 | void Scene2DSharedObject::wake() | 
| 149 | { | 
| 150 |     m_cond.wakeOne(); | 
| 151 | } | 
| 152 |  | 
| 153 | void Scene2DSharedObject::clearSyncRequest() | 
| 154 | { | 
| 155 |     m_requestSync = false; | 
| 156 | } | 
| 157 |  | 
| 158 | } // namespace Quick | 
| 159 | } // namespace Qt3DRender | 
| 160 |  | 
| 161 | QT_END_NAMESPACE | 
| 162 |  |