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qsgcontext_p.h

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/home/opencoverage/opencoverage/guest-scripts/qtdeclarative/src/qtdeclarative/src/quick/scenegraph/qsgcontext_p.h

Line	Source	Count
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	#ifndef QSGCONTEXT_H	-
41	#define QSGCONTEXT_H	-
42		-
43	//	-
44	// W A R N I N G	-
45	// -------------	-
46	//	-
47	// This file is not part of the Qt API. It exists purely as an	-
48	// implementation detail. This header file may change from version to	-
49	// version without notice, or even be removed.	-
50	//	-
51	// We mean it.	-
52	//	-
53		-
54	#include <QtCore/QObject>	-
55	#include <QtCore/qabstractanimation.h>	-
56	#include <QtCore/QMutex>	-
57		-
58	#include <QtGui/QImage>	-
59	#include <QtGui/QSurfaceFormat>	-
60		-
61	#include <private/qtquickglobal_p.h>	-
62	#include <private/qrawfont_p.h>	-
63		-
64	#include <QtQuick/qsgnode.h>	-
65		-
66	QT_BEGIN_NAMESPACE	-
67		-
68	class QSGContextPrivate;	-
69	class QSGInternalRectangleNode;	-
70	class QSGInternalImageNode;	-
71	class QSGPainterNode;	-
72	class QSGGlyphNode;	-
73	class QSGRenderer;	-
74	class QSGDistanceFieldGlyphCache;	-
75	class QQuickWindow;	-
76	class QSGTexture;	-
77	class QSGMaterial;	-
78	class QSGRenderLoop;	-
79	class QSGLayer;	-
80	class QQuickTextureFactory;	-
81	class QSGCompressedTextureFactory;	-
82	class QSGContext;	-
83	class QQuickPaintedItem;	-
84	class QSGRendererInterface;	-
85	class QSGShaderEffectNode;	-
86	class QSGGuiThreadShaderEffectManager;	-
87	class QSGRectangleNode;	-
88	class QSGImageNode;	-
89	class QSGNinePatchNode;	-
90	class QSGSpriteNode;	-
91	class QSGRenderContext;	-
92		-
93	Q_DECLARE_LOGGING_CATEGORY(QSG_LOG_TIME_RENDERLOOP)	-
94	Q_DECLARE_LOGGING_CATEGORY(QSG_LOG_TIME_COMPILATION)	-
95	Q_DECLARE_LOGGING_CATEGORY(QSG_LOG_TIME_TEXTURE)	-
96	Q_DECLARE_LOGGING_CATEGORY(QSG_LOG_TIME_GLYPH)	-
97	Q_DECLARE_LOGGING_CATEGORY(QSG_LOG_TIME_RENDERER)	-
98		-
99	Q_DECLARE_LOGGING_CATEGORY(QSG_LOG_INFO)	-
100	Q_DECLARE_LOGGING_CATEGORY(QSG_LOG_RENDERLOOP)	-
101		-
102	class Q_QUICK_PRIVATE_EXPORT QSGContext : public QObject	-
103	{	-
104	Q_OBJECT	-
105		-
106	public:	-
107	enum AntialiasingMethod {	-
108	UndecidedAntialiasing,	-
109	VertexAntialiasing,	-
110	MsaaAntialiasing	-
111	};	-
112		-
113	explicit QSGContext(QObject *parent = nullptr);	-
114	~QSGContext() override;	-
115		-
116	virtual void renderContextInitialized(QSGRenderContext *renderContext);	-
117	virtual void renderContextInvalidated(QSGRenderContext *renderContext);	-
118	virtual QSGRenderContext *createRenderContext() = 0;	-
119		-
120	QSGInternalRectangleNode *createInternalRectangleNode(const QRectF &rect, const QColor &c);	-
121	virtual QSGInternalRectangleNode *createInternalRectangleNode() = 0;	-
122	virtual QSGInternalImageNode *createInternalImageNode() = 0;	-
123	virtual QSGPainterNode createPainterNode(QQuickPaintedItem item) = 0;	-
124	virtual QSGGlyphNode createGlyphNode(QSGRenderContext rc, bool preferNativeGlyphNode) = 0;	-
125	virtual QSGLayer createLayer(QSGRenderContext renderContext) = 0;	-
126	virtual QSGGuiThreadShaderEffectManager *createGuiThreadShaderEffectManager();	-
127	virtual QSGShaderEffectNode createShaderEffectNode(QSGRenderContext renderContext,	-
128	QSGGuiThreadShaderEffectManager *mgr);	-
129	#if QT_CONFIG(quick_sprite)	-
130	virtual QSGSpriteNode *createSpriteNode() = 0;	-
131	#endif	-
132	virtual QAnimationDriver createAnimationDriver(QObject parent);	-
133		-
134	virtual QSize minimumFBOSize() const;	-
135	virtual QSurfaceFormat defaultSurfaceFormat() const = 0;	-
136		-
137	virtual QSGRendererInterface rendererInterface(QSGRenderContext renderContext);	-
138		-
139	virtual QSGRectangleNode *createRectangleNode() = 0;	-
140	virtual QSGImageNode *createImageNode() = 0;	-
141	virtual QSGNinePatchNode *createNinePatchNode() = 0;	-
142		-
143	static QSGContext *createDefaultContext();	-
144	static QQuickTextureFactory *createTextureFactoryFromImage(const QImage &image);	-
145	static QSGRenderLoop *createWindowManager();	-
146		-
147	static void setBackend(const QString &backend);	-
148	static QString backend();	-
149	};	-
150		-
151	class Q_QUICK_PRIVATE_EXPORT QSGRenderContext : public QObject	-
152	{	-
153	Q_OBJECT	-
154	public:	-
155	enum CreateTextureFlags {	-
156	CreateTexture_Alpha = 0x1,	-
157	CreateTexture_Atlas = 0x2,	-
158	CreateTexture_Mipmap = 0x4	-
159	};	-
160		-
161	QSGRenderContext(QSGContext *context);	-
162	~QSGRenderContext() override;	-
163		-
164	QSGContext *sceneGraphContext() const { return m_sg; } executed 330989 times by 74 tests: `return m_sg;` Executed by: tst_drawingmodes tst_examples tst_flickableinterop tst_multipointtoucharea_interop tst_qqmltypeloader tst_qquickage tst_qquickangleddirection tst_qquickanimatedimage tst_qquickanimatedsprite tst_qquickanimationcontroller tst_qquickanimations tst_qquickborderimage tst_qquickcumulativedirection tst_qquickcustomaffector tst_qquickcustomparticle tst_qquickdraghandler tst_qquickellipseextruder tst_qquickflickable tst_qquickfocusscope tst_qquickfontloader tst_qquickfontloader_static tst_qquickframebufferobject tst_qquickfriction tst_qquickgraphicsinfo tst_qquickgravity ...	330989
165	virtual bool isValid() const { return true; } executed 8 times by 1 test: `return true;` Executed by: tst_qquickshape	8
166		-
167	virtual void initialize(void *context);	-
168	virtual void invalidate();	-
169	virtual void renderNextFrame(QSGRenderer *renderer, uint fboId) = 0;	-
170	virtual void endSync();	-
171		-
172	virtual QSGDistanceFieldGlyphCache *distanceFieldGlyphCache(const QRawFont &font);	-
173	QSGTexture textureForFactory(QQuickTextureFactory factory, QQuickWindow *window);	-
174		-
175	virtual QSGTexture *createTexture(const QImage &image, uint flags = CreateTexture_Alpha) const = 0;	-
176	virtual QSGRenderer *createRenderer() = 0;	-
177	virtual QSGTexture compressedTextureForFactory(const QSGCompressedTextureFactory ) const;	-
178		-
179	virtual void setAttachToGraphicsContext(bool attach) { Q_UNUSED(attach); } never executed: `end of block`	0
180		-
181	virtual int maxTextureSize() const = 0;	-
182		-
183	void registerFontengineForCleanup(QFontEngine *engine);	-
184		-
185	Q_SIGNALS:	-
186	void initialized();	-
187	void invalidated();	-
188		-
189	public Q_SLOTS:	-
190	void textureFactoryDestroyed(QObject *o);	-
191		-
192	protected:	-
193	// Hold m_sg with QPointer in the rare case it gets deleted before us.	-
194	QPointer<QSGContext> m_sg;	-
195		-
196	QMutex m_mutex;	-
197	QHash<QQuickTextureFactory , QSGTexture > m_textures;	-
198	QSet<QSGTexture *> m_texturesToDelete;	-
199	QHash<QString, QSGDistanceFieldGlyphCache *> m_glyphCaches;	-
200		-
201	QSet<QFontEngine *> m_fontEnginesToClean;	-
202	};	-
203		-
204	QT_END_NAMESPACE	-
205		-
206	#endif // QSGCONTEXT_H	-

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/****************************************************************************

** Contact: https://www.qt.io/licensing/

** This file is part of the QtQuick module of the Qt Toolkit.

** $QT_BEGIN_LICENSE:LGPL$

** Commercial License Usage

** Licensees holding valid commercial Qt licenses may use this file in

** accordance with the commercial license agreement provided with the

** Software or, alternatively, in accordance with the terms contained in

** a written agreement between you and The Qt Company. For licensing terms

** and conditions see https://www.qt.io/terms-conditions. For further

** information use the contact form at https://www.qt.io/contact-us.

** GNU Lesser General Public License Usage

** Alternatively, this file may be used under the terms of the GNU Lesser

** General Public License version 3 as published by the Free Software

** Foundation and appearing in the file LICENSE.LGPL3 included in the

** packaging of this file. Please review the following information to

** ensure the GNU Lesser General Public License version 3 requirements

** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.

** GNU General Public License Usage

** Alternatively, this file may be used under the terms of the GNU

** General Public License version 2.0 or (at your option) the GNU General

** Public license version 3 or any later version approved by the KDE Free

** Qt Foundation. The licenses are as published by the Free Software

** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3

** included in the packaging of this file. Please review the following

** information to ensure the GNU General Public License requirements will

** be met: https://www.gnu.org/licenses/gpl-2.0.html and

** https://www.gnu.org/licenses/gpl-3.0.html.

** $QT_END_LICENSE$

****************************************************************************/

#ifndef QSGCONTEXT_H

#define QSGCONTEXT_H

// W A R N I N G

// -------------

// This file is not part of the Qt API. It exists purely as an

// implementation detail. This header file may change from version to

// version without notice, or even be removed.

// We mean it.

#include <QtCore/QObject>

#include <QtCore/qabstractanimation.h>

#include <QtCore/QMutex>

#include <QtGui/QImage>

#include <QtGui/QSurfaceFormat>

#include <private/qtquickglobal_p.h>

#include <private/qrawfont_p.h>

#include <QtQuick/qsgnode.h>

QT_BEGIN_NAMESPACE

class QSGContextPrivate;

class QSGInternalRectangleNode;

class QSGInternalImageNode;

class QSGPainterNode;

class QSGGlyphNode;

class QSGRenderer;

class QSGDistanceFieldGlyphCache;

class QQuickWindow;

class QSGTexture;

class QSGMaterial;

class QSGRenderLoop;

class QSGLayer;

class QQuickTextureFactory;

class QSGCompressedTextureFactory;

class QSGContext;

class QQuickPaintedItem;

class QSGRendererInterface;

class QSGShaderEffectNode;

class QSGGuiThreadShaderEffectManager;

class QSGRectangleNode;

class QSGImageNode;

class QSGNinePatchNode;

class QSGSpriteNode;

class QSGRenderContext;

Q_DECLARE_LOGGING_CATEGORY(QSG_LOG_TIME_RENDERLOOP)

Q_DECLARE_LOGGING_CATEGORY(QSG_LOG_TIME_COMPILATION)

Q_DECLARE_LOGGING_CATEGORY(QSG_LOG_TIME_TEXTURE)

Q_DECLARE_LOGGING_CATEGORY(QSG_LOG_TIME_GLYPH)

Q_DECLARE_LOGGING_CATEGORY(QSG_LOG_TIME_RENDERER)

Q_DECLARE_LOGGING_CATEGORY(QSG_LOG_INFO)

100

Q_DECLARE_LOGGING_CATEGORY(QSG_LOG_RENDERLOOP)

101

102

class Q_QUICK_PRIVATE_EXPORT QSGContext : public QObject

{

Q_OBJECT

public:

enum AntialiasingMethod {

108

UndecidedAntialiasing,

VertexAntialiasing,

MsaaAntialiasing

};

explicit QSGContext(QObject *parent = nullptr);

114

~QSGContext() override;

115

116

virtual void renderContextInitialized(QSGRenderContext *renderContext);

117

virtual void renderContextInvalidated(QSGRenderContext *renderContext);

118

virtual QSGRenderContext *createRenderContext() = 0;

119

120

QSGInternalRectangleNode *createInternalRectangleNode(const QRectF &rect, const QColor &c);

121

virtual QSGInternalRectangleNode *createInternalRectangleNode() = 0;

122

virtual QSGInternalImageNode *createInternalImageNode() = 0;

123

virtual QSGPainterNode *createPainterNode(QQuickPaintedItem *item) = 0;

124

virtual QSGGlyphNode *createGlyphNode(QSGRenderContext *rc, bool preferNativeGlyphNode) = 0;

125

virtual QSGLayer *createLayer(QSGRenderContext *renderContext) = 0;

126

virtual QSGGuiThreadShaderEffectManager *createGuiThreadShaderEffectManager();

127

virtual QSGShaderEffectNode *createShaderEffectNode(QSGRenderContext *renderContext,

128

QSGGuiThreadShaderEffectManager *mgr);

129

#if QT_CONFIG(quick_sprite)

130

virtual QSGSpriteNode *createSpriteNode() = 0;

131

#endif

132

virtual QAnimationDriver *createAnimationDriver(QObject *parent);

133

134

virtual QSize minimumFBOSize() const;

135

virtual QSurfaceFormat defaultSurfaceFormat() const = 0;

136

137

virtual QSGRendererInterface *rendererInterface(QSGRenderContext *renderContext);

138

139

virtual QSGRectangleNode *createRectangleNode() = 0;

140

virtual QSGImageNode *createImageNode() = 0;

141

virtual QSGNinePatchNode *createNinePatchNode() = 0;

142

143

static QSGContext *createDefaultContext();

144

static QQuickTextureFactory *createTextureFactoryFromImage(const QImage &image);

145

static QSGRenderLoop *createWindowManager();

146

147

static void setBackend(const QString &backend);

148

static QString backend();

149

};

150

151

class Q_QUICK_PRIVATE_EXPORT QSGRenderContext : public QObject

{

Q_OBJECT

public:

enum CreateTextureFlags {

156

CreateTexture_Alpha = 0x1,

157

CreateTexture_Atlas = 0x2,

158

CreateTexture_Mipmap = 0x4

159

};

160

161

QSGRenderContext(QSGContext *context);

162

~QSGRenderContext() override;

163

164

QSGContext *sceneGraphContext() const { return m_sg; }

executed 330989 times by 74 tests: return m_sg;

Executed by:

tst_drawingmodes
tst_examples
tst_flickableinterop
tst_multipointtoucharea_interop
tst_qqmltypeloader
tst_qquickage
tst_qquickangleddirection
tst_qquickanimatedimage
tst_qquickanimatedsprite
tst_qquickanimationcontroller
tst_qquickanimations
tst_qquickborderimage
tst_qquickcumulativedirection
tst_qquickcustomaffector
tst_qquickcustomparticle
tst_qquickdraghandler
tst_qquickellipseextruder
tst_qquickflickable
tst_qquickfocusscope
tst_qquickfontloader
tst_qquickfontloader_static
tst_qquickframebufferobject
tst_qquickfriction
tst_qquickgraphicsinfo
tst_qquickgravity
...

330989

165

virtual bool isValid() const { return true; }

executed 8 times by 1 test: return true;

Executed by:

tst_qquickshape

166

167

virtual void initialize(void *context);

168

virtual void invalidate();

169

virtual void renderNextFrame(QSGRenderer *renderer, uint fboId) = 0;

170

virtual void endSync();

171

172

virtual QSGDistanceFieldGlyphCache *distanceFieldGlyphCache(const QRawFont &font);

173

QSGTexture *textureForFactory(QQuickTextureFactory *factory, QQuickWindow *window);

174

175

virtual QSGTexture *createTexture(const QImage &image, uint flags = CreateTexture_Alpha) const = 0;

176

virtual QSGRenderer *createRenderer() = 0;

177

virtual QSGTexture *compressedTextureForFactory(const QSGCompressedTextureFactory *) const;

178

179

virtual void setAttachToGraphicsContext(bool attach) { Q_UNUSED(attach); }

never executed: end of block

180

181

virtual int maxTextureSize() const = 0;

182

183

void registerFontengineForCleanup(QFontEngine *engine);

Q_SIGNALS:

void initialized();

void invalidated();

public Q_SLOTS:

void textureFactoryDestroyed(QObject *o);

191

192

protected:

193

// Hold m_sg with QPointer in the rare case it gets deleted before us.

194

QPointer<QSGContext> m_sg;

195

196

QMutex m_mutex;

197

QHash<QQuickTextureFactory *, QSGTexture *> m_textures;

198

QSet<QSGTexture *> m_texturesToDelete;

199

QHash<QString, QSGDistanceFieldGlyphCache *> m_glyphCaches;

200

201

QSet<QFontEngine *> m_fontEnginesToClean;

};

QT_END_NAMESPACE

#endif // QSGCONTEXT_H

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