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 */
Scene2DSharedObject(Scene2DManager * manager)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
~Scene2DSharedObject()72 Scene2DSharedObject::~Scene2DSharedObject()
73 {
74 }
75
cleanup()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
canRender() const87 bool Scene2DSharedObject::canRender() const
88 {
89 return m_initialized && m_prepared && !m_disallowed;
90 }
91
isInitialized() const92 bool Scene2DSharedObject::isInitialized() const
93 {
94 return m_initialized;
95 }
96
disallowRender()97 void Scene2DSharedObject::disallowRender()
98 {
99 m_disallowed = true;
100 }
101
setInitialized()102 void Scene2DSharedObject::setInitialized()
103 {
104 m_initialized = true;
105 }
106
isPrepared() const107 bool Scene2DSharedObject::isPrepared() const
108 {
109 return m_prepared;
110 }
111
setPrepared()112 void Scene2DSharedObject::setPrepared()
113 {
114 m_prepared = true;
115 }
116
117 // not protected, call only from main thread
isQuit() const118 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
requestQuit()125 void Scene2DSharedObject::requestQuit()
126 {
127 Q_ASSERT(QThread::currentThread() == QCoreApplication::instance()->thread());
128 m_quit = true;
129 QCoreApplication::postEvent(m_renderObject, new Scene2DEvent(Scene2DEvent::Quit));
130 }
131
isSyncRequested() const132 bool Scene2DSharedObject::isSyncRequested() const
133 {
134 return m_requestSync;
135 }
136
requestRender(bool sync)137 void Scene2DSharedObject::requestRender(bool sync)
138 {
139 m_requestSync = sync;
140 QCoreApplication::postEvent(m_renderObject, new Scene2DEvent(Scene2DEvent::Render));
141 }
142
wait()143 void Scene2DSharedObject::wait()
144 {
145 m_cond.wait(&m_mutex);
146 }
147
wake()148 void Scene2DSharedObject::wake()
149 {
150 m_cond.wakeOne();
151 }
152
clearSyncRequest()153 void Scene2DSharedObject::clearSyncRequest()
154 {
155 m_requestSync = false;
156 }
157
158 } // namespace Quick
159 } // namespace Qt3DRender
160
161 QT_END_NAMESPACE
162