Absolute File Name: | /home/opencoverage/opencoverage/guest-scripts/qtdeclarative/src/qtdeclarative/src/quick/scenegraph/adaptations/software/qsgsoftwarerenderer.cpp |
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1 | /**************************************************************************** | - | ||||||||||||
2 | ** | - | ||||||||||||
3 | ** Copyright (C) 2016 The Qt Company Ltd. | - | ||||||||||||
4 | ** Contact: https://www.qt.io/licensing/ | - | ||||||||||||
5 | ** | - | ||||||||||||
6 | ** This file is part of the QtQuick module of the Qt Toolkit. | - | ||||||||||||
7 | ** | - | ||||||||||||
8 | ** $QT_BEGIN_LICENSE:LGPL$ | - | ||||||||||||
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 https://www.qt.io/terms-conditions. For further | - | ||||||||||||
15 | ** information use the contact form at https://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.LGPL3 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-3.0.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 (at your option) the GNU General | - | ||||||||||||
28 | ** Public license version 3 or any later version approved by the KDE Free | - | ||||||||||||
29 | ** Qt Foundation. The licenses are as published by the Free Software | - | ||||||||||||
30 | ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 | - | ||||||||||||
31 | ** included in the packaging of this file. Please review the following | - | ||||||||||||
32 | ** information to ensure the GNU General Public License requirements will | - | ||||||||||||
33 | ** be met: https://www.gnu.org/licenses/gpl-2.0.html and | - | ||||||||||||
34 | ** https://www.gnu.org/licenses/gpl-3.0.html. | - | ||||||||||||
35 | ** | - | ||||||||||||
36 | ** $QT_END_LICENSE$ | - | ||||||||||||
37 | ** | - | ||||||||||||
38 | ****************************************************************************/ | - | ||||||||||||
39 | - | |||||||||||||
40 | #include "qsgsoftwarerenderer_p.h" | - | ||||||||||||
41 | - | |||||||||||||
42 | #include "qsgsoftwarerenderablenodeupdater_p.h" | - | ||||||||||||
43 | #include "qsgsoftwarerenderlistbuilder_p.h" | - | ||||||||||||
44 | #include "qsgsoftwarecontext_p.h" | - | ||||||||||||
45 | #include "qsgsoftwarerenderablenode_p.h" | - | ||||||||||||
46 | - | |||||||||||||
47 | #include <QtGui/QPaintDevice> | - | ||||||||||||
48 | #include <QtGui/QBackingStore> | - | ||||||||||||
49 | #include <QElapsedTimer> | - | ||||||||||||
50 | - | |||||||||||||
51 | Q_LOGGING_CATEGORY(lcRenderer, "qt.scenegraph.softwarecontext.renderer") executed 24 times by 1 test: return category; Executed by:
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52 | - | |||||||||||||
53 | QT_BEGIN_NAMESPACE | - | ||||||||||||
54 | - | |||||||||||||
55 | QSGSoftwareRenderer::QSGSoftwareRenderer(QSGRenderContext *context) | - | ||||||||||||
56 | : QSGAbstractSoftwareRenderer(context) | - | ||||||||||||
57 | , m_paintDevice(nullptr) | - | ||||||||||||
58 | , m_backingStore(nullptr) | - | ||||||||||||
59 | { | - | ||||||||||||
60 | } executed 8 times by 1 test: end of block Executed by:
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61 | - | |||||||||||||
62 | QSGSoftwareRenderer::~QSGSoftwareRenderer() | - | ||||||||||||
63 | { | - | ||||||||||||
64 | } | - | ||||||||||||
65 | - | |||||||||||||
66 | void QSGSoftwareRenderer::setCurrentPaintDevice(QPaintDevice *device) | - | ||||||||||||
67 | { | - | ||||||||||||
68 | m_paintDevice = device; | - | ||||||||||||
69 | m_backingStore = nullptr; | - | ||||||||||||
70 | } never executed: end of block | 0 | ||||||||||||
71 | - | |||||||||||||
72 | QPaintDevice *QSGSoftwareRenderer::currentPaintDevice() const | - | ||||||||||||
73 | { | - | ||||||||||||
74 | return m_paintDevice; never executed: return m_paintDevice; | 0 | ||||||||||||
75 | } | - | ||||||||||||
76 | - | |||||||||||||
77 | void QSGSoftwareRenderer::setBackingStore(QBackingStore *backingStore) | - | ||||||||||||
78 | { | - | ||||||||||||
79 | m_backingStore = backingStore; | - | ||||||||||||
80 | m_paintDevice = nullptr; | - | ||||||||||||
81 | } executed 24 times by 1 test: end of block Executed by:
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82 | - | |||||||||||||
83 | QRegion QSGSoftwareRenderer::flushRegion() const | - | ||||||||||||
84 | { | - | ||||||||||||
85 | return m_flushRegion; never executed: return m_flushRegion; | 0 | ||||||||||||
86 | } | - | ||||||||||||
87 | - | |||||||||||||
88 | void QSGSoftwareRenderer::renderScene(uint) | - | ||||||||||||
89 | { | - | ||||||||||||
90 | class B : public QSGBindable | - | ||||||||||||
91 | { | - | ||||||||||||
92 | public: | - | ||||||||||||
93 | void bind() const override { } | - | ||||||||||||
94 | } bindable; | - | ||||||||||||
95 | QSGRenderer::renderScene(bindable); | - | ||||||||||||
96 | } executed 24 times by 1 test: end of block Executed by:
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97 | - | |||||||||||||
98 | void QSGSoftwareRenderer::render() | - | ||||||||||||
99 | { | - | ||||||||||||
100 | if (!m_paintDevice && !m_backingStore)
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101 | return; never executed: return; | 0 | ||||||||||||
102 | - | |||||||||||||
103 | // If there is a backingstore, set the current paint device | - | ||||||||||||
104 | if (m_backingStore) {
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105 | // For HiDPI QBackingStores, the paint device is not valid | - | ||||||||||||
106 | // until begin() has been called. See: QTBUG-55875 | - | ||||||||||||
107 | m_backingStore->beginPaint(QRegion()); | - | ||||||||||||
108 | m_paintDevice = m_backingStore->paintDevice(); | - | ||||||||||||
109 | m_backingStore->endPaint(); | - | ||||||||||||
110 | } executed 24 times by 1 test: end of block Executed by:
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111 | - | |||||||||||||
112 | QElapsedTimer renderTimer; | - | ||||||||||||
113 | - | |||||||||||||
114 | setBackgroundColor(clearColor()); | - | ||||||||||||
115 | setBackgroundRect(QRect(0, 0, | - | ||||||||||||
116 | m_paintDevice->width() / m_paintDevice->devicePixelRatio(), | - | ||||||||||||
117 | m_paintDevice->height() / m_paintDevice->devicePixelRatio())); | - | ||||||||||||
118 | - | |||||||||||||
119 | // Build Renderlist | - | ||||||||||||
120 | // The renderlist is created by visiting each node in the tree and when a | - | ||||||||||||
121 | // renderable node is reach, we find the coorosponding RenderableNode object | - | ||||||||||||
122 | // and append it to the renderlist. At this point the RenderableNode object | - | ||||||||||||
123 | // should not need any further updating so it is just a matter of appending | - | ||||||||||||
124 | // RenderableNodes | - | ||||||||||||
125 | renderTimer.start(); | - | ||||||||||||
126 | buildRenderList(); | - | ||||||||||||
127 | qint64 buildRenderListTime = renderTimer.restart(); | - | ||||||||||||
128 | - | |||||||||||||
129 | // Optimize Renderlist | - | ||||||||||||
130 | // This is a pass through the renderlist to determine what actually needs to | - | ||||||||||||
131 | // be painted. Without this pass the renderlist will simply render each item | - | ||||||||||||
132 | // from back to front, with a high potential for overdraw. It would also lead | - | ||||||||||||
133 | // to the entire window being flushed every frame. The objective of the | - | ||||||||||||
134 | // optimization pass is to only paint dirty nodes that are not occuluded. A | - | ||||||||||||
135 | // side effect of this is that additional nodes may need to be marked dirty to | - | ||||||||||||
136 | // force a repaint. It is also important that any item that needs to be | - | ||||||||||||
137 | // repainted only paints what is needed, via the use of clip regions. | - | ||||||||||||
138 | const QRegion updateRegion = optimizeRenderList(); | - | ||||||||||||
139 | qint64 optimizeRenderListTime = renderTimer.restart(); | - | ||||||||||||
140 | - | |||||||||||||
141 | // If Rendering to a backingstore, prepare it to be updated | - | ||||||||||||
142 | if (m_backingStore != nullptr) {
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143 | m_backingStore->beginPaint(updateRegion); | - | ||||||||||||
144 | // It is possible that a QBackingStore's paintDevice() will change | - | ||||||||||||
145 | // when begin() is called. | - | ||||||||||||
146 | m_paintDevice = m_backingStore->paintDevice(); | - | ||||||||||||
147 | } executed 24 times by 1 test: end of block Executed by:
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148 | - | |||||||||||||
149 | QPainter painter(m_paintDevice); | - | ||||||||||||
150 | painter.setRenderHint(QPainter::Antialiasing); | - | ||||||||||||
151 | auto rc = static_cast<QSGSoftwareRenderContext *>(context()); | - | ||||||||||||
152 | QPainter *prevPainter = rc->m_activePainter; | - | ||||||||||||
153 | rc->m_activePainter = &painter; | - | ||||||||||||
154 | - | |||||||||||||
155 | // Render the contents Renderlist | - | ||||||||||||
156 | m_flushRegion = renderNodes(&painter); | - | ||||||||||||
157 | qint64 renderTime = renderTimer.elapsed(); | - | ||||||||||||
158 | - | |||||||||||||
159 | painter.end(); | - | ||||||||||||
160 | if (m_backingStore != nullptr)
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161 | m_backingStore->endPaint(); executed 24 times by 1 test: m_backingStore->endPaint(); Executed by:
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162 | - | |||||||||||||
163 | rc->m_activePainter = prevPainter; | - | ||||||||||||
164 | qCDebug(lcRenderer) << "render" << m_flushRegion << buildRenderListTime << optimizeRenderListTime << renderTime; never executed: QMessageLogger(__FILE__, 164, __PRETTY_FUNCTION__, lcRenderer().categoryName()).debug() << "render" << m_flushRegion << buildRenderListTime << optimizeRenderListTime << renderTime;
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165 | } executed 24 times by 1 test: end of block Executed by:
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166 | - | |||||||||||||
167 | QT_END_NAMESPACE | - | ||||||||||||
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