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
|
/****************************************************************************
**
** Copyright (C) 2011 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.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QGLFRAMEBUFFEROBJECT_H
#define QGLFRAMEBUFFEROBJECT_H
#include <QtOpenGL/qgl.h>
#include <QtGui/qpaintdevice.h>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(OpenGL)
class QGLFramebufferObjectPrivate;
class QGLFramebufferObjectFormat;
class Q_OPENGL_EXPORT QGLFramebufferObject : public QPaintDevice
{
Q_DECLARE_PRIVATE(QGLFramebufferObject)
public:
enum Attachment {
NoAttachment,
CombinedDepthStencil,
Depth
};
QGLFramebufferObject(const QSize &size, GLenum target = GL_TEXTURE_2D);
QGLFramebufferObject(int width, int height, GLenum target = GL_TEXTURE_2D);
#if !defined(QT_OPENGL_ES) || defined(Q_QDOC)
QGLFramebufferObject(const QSize &size, Attachment attachment,
GLenum target = GL_TEXTURE_2D, GLenum internal_format = GL_RGBA8);
QGLFramebufferObject(int width, int height, Attachment attachment,
GLenum target = GL_TEXTURE_2D, GLenum internal_format = GL_RGBA8);
#else
QGLFramebufferObject(const QSize &size, Attachment attachment,
GLenum target = GL_TEXTURE_2D, GLenum internal_format = GL_RGBA);
QGLFramebufferObject(int width, int height, Attachment attachment,
GLenum target = GL_TEXTURE_2D, GLenum internal_format = GL_RGBA);
#endif
QGLFramebufferObject(const QSize &size, const QGLFramebufferObjectFormat &format);
QGLFramebufferObject(int width, int height, const QGLFramebufferObjectFormat &format);
#ifdef Q_MAC_COMPAT_GL_FUNCTIONS
QGLFramebufferObject(const QSize &size, QMacCompatGLenum target = GL_TEXTURE_2D);
QGLFramebufferObject(int width, int height, QMacCompatGLenum target = GL_TEXTURE_2D);
QGLFramebufferObject(const QSize &size, Attachment attachment,
QMacCompatGLenum target = GL_TEXTURE_2D, QMacCompatGLenum internal_format = GL_RGBA8);
QGLFramebufferObject(int width, int height, Attachment attachment,
QMacCompatGLenum target = GL_TEXTURE_2D, QMacCompatGLenum internal_format = GL_RGBA8);
#endif
virtual ~QGLFramebufferObject();
QGLFramebufferObjectFormat format() const;
bool isValid() const;
bool isBound() const;
bool bind();
bool release();
GLuint texture() const;
QSize size() const;
QImage toImage() const;
Attachment attachment() const;
QPaintEngine *paintEngine() const;
GLuint handle() const;
static bool bindDefault();
static bool hasOpenGLFramebufferObjects();
void drawTexture(const QRectF &target, GLuint textureId, GLenum textureTarget = GL_TEXTURE_2D);
void drawTexture(const QPointF &point, GLuint textureId, GLenum textureTarget = GL_TEXTURE_2D);
#ifdef Q_MAC_COMPAT_GL_FUNCTIONS
void drawTexture(const QRectF &target, QMacCompatGLuint textureId, QMacCompatGLenum textureTarget = GL_TEXTURE_2D);
void drawTexture(const QPointF &point, QMacCompatGLuint textureId, QMacCompatGLenum textureTarget = GL_TEXTURE_2D);
#endif
static bool hasOpenGLFramebufferBlit();
static void blitFramebuffer(QGLFramebufferObject *target, const QRect &targetRect,
QGLFramebufferObject *source, const QRect &sourceRect,
GLbitfield buffers = GL_COLOR_BUFFER_BIT,
GLenum filter = GL_NEAREST);
protected:
int metric(PaintDeviceMetric metric) const;
int devType() const { return QInternal::FramebufferObject; }
private:
Q_DISABLE_COPY(QGLFramebufferObject)
QScopedPointer<QGLFramebufferObjectPrivate> d_ptr;
friend class QGLPaintDevice;
friend class QGLFBOGLPaintDevice;
};
class QGLFramebufferObjectFormatPrivate;
class Q_OPENGL_EXPORT QGLFramebufferObjectFormat
{
public:
QGLFramebufferObjectFormat();
QGLFramebufferObjectFormat(const QGLFramebufferObjectFormat &other);
QGLFramebufferObjectFormat &operator=(const QGLFramebufferObjectFormat &other);
~QGLFramebufferObjectFormat();
void setSamples(int samples);
int samples() const;
void setMipmap(bool enabled);
bool mipmap() const;
void setAttachment(QGLFramebufferObject::Attachment attachment);
QGLFramebufferObject::Attachment attachment() const;
void setTextureTarget(GLenum target);
GLenum textureTarget() const;
void setInternalTextureFormat(GLenum internalTextureFormat);
GLenum internalTextureFormat() const;
#ifdef Q_MAC_COMPAT_GL_FUNCTIONS
void setTextureTarget(QMacCompatGLenum target);
void setInternalTextureFormat(QMacCompatGLenum internalTextureFormat);
#endif
bool operator==(const QGLFramebufferObjectFormat& other) const;
bool operator!=(const QGLFramebufferObjectFormat& other) const;
private:
QGLFramebufferObjectFormatPrivate *d;
void detach();
};
QT_END_NAMESPACE
QT_END_HEADER
#endif // QGLFRAMEBUFFEROBJECT_H
|
