1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
|
/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the QtQuick module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** 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 http://www.qt.io/terms-conditions. For further
** information use the contact form at http://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 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#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 <QtGui/QImage>
#include <QtGui/QSurfaceFormat>
#include <private/qtquickglobal_p.h>
#include <private/qrawfont_p.h>
#include <QtQuick/qsgnode.h>
#include <QtQuick/private/qsgdepthstencilbuffer_p.h>
QT_BEGIN_NAMESPACE
namespace QSGAtlasTexture {
class Manager;
}
class QSGContextPrivate;
class QSGRectangleNode;
class QSGImageNode;
class QSGPainterNode;
class QSGGlyphNode;
class QSGNinePatchNode;
class QSGRenderer;
class QSGDistanceFieldGlyphCache;
class QQuickWindow;
class QSGTexture;
class QSGMaterial;
class QSGMaterialShader;
class QSGRenderLoop;
class QSGLayer;
class QOpenGLContext;
class QOpenGLFramebufferObject;
class QQuickTextureFactory;
class QSGDistanceFieldGlyphCacheManager;
class QSGContext;
class QQuickPaintedItem;
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)
Q_DECLARE_LOGGING_CATEGORY(QSG_LOG_RENDERLOOP)
class Q_QUICK_PRIVATE_EXPORT QSGRenderContext : public QObject
{
Q_OBJECT
public:
enum CreateTextureFlags {
CreateTexture_Alpha = 0x1,
CreateTexture_Atlas = 0x2,
CreateTexture_Mipmap = 0x4
};
QSGRenderContext(QSGContext *context);
~QSGRenderContext();
QOpenGLContext *openglContext() const { return m_gl; }
QSGContext *sceneGraphContext() const { return m_sg; }
virtual bool isValid() const { return m_gl; }
virtual void initialize(QOpenGLContext *context);
virtual void invalidate();
virtual void renderNextFrame(QSGRenderer *renderer, GLuint fboId);
virtual void endSync();
virtual QSharedPointer<QSGDepthStencilBuffer> depthStencilBufferForFbo(QOpenGLFramebufferObject *fbo);
QSGDepthStencilBufferManager *depthStencilBufferManager();
virtual QSGDistanceFieldGlyphCache *distanceFieldGlyphCache(const QRawFont &font);
QSGTexture *textureForFactory(QQuickTextureFactory *factory, QQuickWindow *window);
virtual QSGTexture *createTexture(const QImage &image, uint flags = CreateTexture_Alpha) const;
virtual QSGRenderer *createRenderer();
virtual void compile(QSGMaterialShader *shader, QSGMaterial *material, const char *vertexCode = 0, const char *fragmentCode = 0);
virtual void initialize(QSGMaterialShader *shader);
void setAttachToGLContext(bool attach);
void registerFontengineForCleanup(QFontEngine *engine);
static QSGRenderContext *from(QOpenGLContext *context);
bool hasBrokenIndexBufferObjects() const { return m_brokenIBOs; }
int maxTextureSize() const { return m_maxTextureSize; }
Q_SIGNALS:
void initialized();
void invalidated();
public Q_SLOTS:
void textureFactoryDestroyed(QObject *o);
protected:
QOpenGLContext *m_gl;
QSGContext *m_sg;
QMutex m_mutex;
QHash<QQuickTextureFactory *, QSGTexture *> m_textures;
QSet<QSGTexture *> m_texturesToDelete;
QSGAtlasTexture::Manager *m_atlasManager;
QSGDepthStencilBufferManager *m_depthStencilManager;
QSGDistanceFieldGlyphCacheManager *m_distanceFieldCacheManager;
QSet<QFontEngine *> m_fontEnginesToClean;
int m_maxTextureSize;
bool m_brokenIBOs;
bool m_serializedRender;
bool m_attachToGLContext;
};
class Q_QUICK_PRIVATE_EXPORT QSGContext : public QObject
{
Q_OBJECT
Q_DECLARE_PRIVATE(QSGContext)
public:
enum AntialiasingMethod {
UndecidedAntialiasing,
VertexAntialiasing,
MsaaAntialiasing
};
explicit QSGContext(QObject *parent = 0);
~QSGContext();
virtual void renderContextInitialized(QSGRenderContext *renderContext);
virtual void renderContextInvalidated(QSGRenderContext *renderContext);
virtual QSGRenderContext *createRenderContext();
QSGRectangleNode *createRectangleNode(const QRectF &rect, const QColor &c);
virtual QSGRectangleNode *createRectangleNode();
virtual QSGImageNode *createImageNode();
virtual QSGPainterNode *createPainterNode(QQuickPaintedItem *item);
virtual QSGGlyphNode *createGlyphNode(QSGRenderContext *rc, bool preferNativeGlyphNode);
virtual QSGNinePatchNode *createNinePatchNode();
virtual QSGLayer *createLayer(QSGRenderContext *renderContext);
virtual QAnimationDriver *createAnimationDriver(QObject *parent);
virtual QSize minimumFBOSize() const;
virtual QSurfaceFormat defaultSurfaceFormat() const;
void setDistanceFieldEnabled(bool enabled);
bool isDistanceFieldEnabled() const;
static QSGContext *createDefaultContext();
static QQuickTextureFactory *createTextureFactoryFromImage(const QImage &image);
static QSGRenderLoop *createWindowManager();
};
QT_END_NAMESPACE
#endif // QSGCONTEXT_H
|
