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
|
/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtOpenGL module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** 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 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QPIXMAPDATA_GL_P_H
#define QPIXMAPDATA_GL_P_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 "qgl_p.h"
#include "qgl.h"
#include "private/qpixmapdata_p.h"
#include "private/qglpaintdevice_p.h"
QT_BEGIN_NAMESPACE
class QPaintEngine;
class QGLFramebufferObject;
class QGLFramebufferObjectFormat;
class QGLPixmapData;
class QGLFramebufferObjectPool
{
public:
QGLFramebufferObject *acquire(const QSize &size, const QGLFramebufferObjectFormat &format, bool strictSize = false);
void release(QGLFramebufferObject *fbo);
private:
QList<QGLFramebufferObject *> m_fbos;
};
QGLFramebufferObjectPool* qgl_fbo_pool();
class QGLPixmapGLPaintDevice : public QGLPaintDevice
{
public:
QPaintEngine* paintEngine() const;
void beginPaint();
void endPaint();
QGLContext* context() const;
QSize size() const;
bool alphaRequested() const;
void setPixmapData(QGLPixmapData*);
private:
QGLPixmapData *data;
};
class Q_OPENGL_EXPORT QGLPixmapData : public QPixmapData
{
public:
QGLPixmapData(PixelType type);
~QGLPixmapData();
QPixmapData *createCompatiblePixmapData() const;
// Re-implemented from QPixmapData:
void resize(int width, int height);
void fromImage(const QImage &image, Qt::ImageConversionFlags flags);
bool fromFile(const QString &filename, const char *format,
Qt::ImageConversionFlags flags);
bool fromData(const uchar *buffer, uint len, const char *format,
Qt::ImageConversionFlags flags);
void copy(const QPixmapData *data, const QRect &rect);
bool scroll(int dx, int dy, const QRect &rect);
void fill(const QColor &color);
bool hasAlphaChannel() const;
QImage toImage() const;
QPaintEngine *paintEngine() const;
int metric(QPaintDevice::PaintDeviceMetric metric) const;
// For accessing as a target:
QGLPaintDevice *glDevice() const;
// For accessing as a source:
bool isValidContext(const QGLContext *ctx) const;
GLuint bind(bool copyBack = true) const;
QGLTexture *texture() const;
private:
bool isValid() const;
void ensureCreated() const;
bool isUninitialized() const { return m_dirty && m_source.isNull(); }
bool needsFill() const { return m_hasFillColor; }
QColor fillColor() const { return m_fillColor; }
QGLPixmapData(const QGLPixmapData &other);
QGLPixmapData &operator=(const QGLPixmapData &other);
void copyBackFromRenderFbo(bool keepCurrentFboBound) const;
QSize size() const { return QSize(w, h); }
bool useFramebufferObjects() const;
QImage fillImage(const QColor &color) const;
mutable QGLFramebufferObject *m_renderFbo;
mutable QPaintEngine *m_engine;
mutable QGLContext *m_ctx;
mutable QImage m_source;
mutable QGLTexture m_texture;
// the texture is not in sync with the source image
mutable bool m_dirty;
// fill has been called and no painting has been done, so the pixmap is
// represented by a single fill color
mutable QColor m_fillColor;
mutable bool m_hasFillColor;
mutable bool m_hasAlpha;
mutable QGLPixmapGLPaintDevice m_glDevice;
friend class QGLPixmapGLPaintDevice;
friend class QMeeGoPixmapData;
};
QT_END_NAMESPACE
#endif // QPIXMAPDATA_GL_P_H
|
