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qsgsoftwarerenderer.cpp

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/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 -

Q_LOGGING_CATEGORY(lcRenderer, "qt.scenegraph.softwarecontext.renderer")

executed 24 times by 1 test: return category;

Executed by:

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24

52 -

53 QT_BEGIN_NAMESPACE -

54 -

55 QSGSoftwareRenderer::QSGSoftwareRenderer(QSGRenderContext *context) -

56 : QSGAbstractSoftwareRenderer(context) -

57 , m_paintDevice(nullptr) -

58 , m_backingStore(nullptr) -

59 { -

}

executed 8 times by 1 test: end of block

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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; -

}

never executed: end of block

0

71 -

72 QPaintDevice *QSGSoftwareRenderer::currentPaintDevice() const -

73 { -

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; -

}

executed 24 times by 1 test: end of block

Executed by:

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24

82 -

83 QRegion QSGSoftwareRenderer::flushRegion() const -

84 { -

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); -

}

executed 24 times by 1 test: end of block

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97 -

98 void QSGSoftwareRenderer::render() -

99 { -

if (!m_paintDevice && !m_backingStore)

!m_paintDevice	Description
TRUE	evaluated 24 times by 1 test Evaluated by: tst_qquickshape
FALSE	never evaluated

!m_backingStore	Description
TRUE	never evaluated
FALSE	evaluated 24 times by 1 test Evaluated by: tst_qquickshape

0-24

return;

never executed: return;

0

102 -

103 // If there is a backingstore, set the current paint device -

if (m_backingStore) {

m_backingStore	Description
TRUE	evaluated 24 times by 1 test Evaluated by: tst_qquickshape
FALSE	never evaluated

0-24

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(); -

}

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 -

if (m_backingStore != nullptr) {

m_backingStore != nullptr	Description
TRUE	evaluated 24 times by 1 test Evaluated by: tst_qquickshape
FALSE	never evaluated

0-24

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(); -

}

executed 24 times by 1 test: end of block

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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(); -

if (m_backingStore != nullptr)

m_backingStore != nullptr	Description
TRUE	evaluated 24 times by 1 test Evaluated by: tst_qquickshape
FALSE	never evaluated

0-24

m_backingStore->endPaint();

executed 24 times by 1 test: m_backingStore->endPaint();

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162 -

163 rc->m_activePainter = prevPainter; -

qCDebug(lcRenderer) << "render" << m_flushRegion << buildRenderListTime << optimizeRenderListTime << renderTime;

never executed:

QMessageLogger(__FILE__, 164, __PRETTY_FUNCTION__, lcRenderer().categoryName()).debug() << "render" << m_flushRegion << buildRenderListTime << optimizeRenderListTime << renderTime;

qt_category_enabled	Description
TRUE	never evaluated
FALSE	evaluated 24 times by 1 test Evaluated by: tst_qquickshape

0-24

}

executed 24 times by 1 test: end of block

Executed by:

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24

166 -

167 QT_END_NAMESPACE -

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