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
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
|
/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (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 either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** 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 1.0, 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.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at qt-sales@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QGLScreen>
#include <QGLContext>
#include <QGLWidget>
#include "private/qglwindowsurface_qws_p.h"
QT_BEGIN_NAMESPACE
class QGLScreenPrivate
{
public:
QGLScreen::Options options;
QGLScreenSurfaceFunctions *functions;
};
/*!
\internal
\preliminary
\class QGLScreen
\brief This class encapsulates an OpenGL screen driver.
*/
QGLScreen::QGLScreen(int displayId)
: QScreen(displayId, GLClass), d_ptr(new QGLScreenPrivate)
{
d_ptr->options = NoOptions;
d_ptr->functions = new QGLScreenSurfaceFunctions();
}
QGLScreen::~QGLScreen()
{
delete d_ptr->functions;
delete d_ptr;
}
/*!
\since 4.3
\obsolete
Initializes the \a context and sets up the QGLWindowSurface of the
QWidget of \a context based on the parameters of \a context and
based on its own requirements. The format() of \a context needs
to be updated with the actual parameters of the OpenGLES drawable
that was set up.
\a shareContext is used in the same way as for QGLContext. It is
the context with which \a context shares display lists and texture
ids etc. The window surface must be set up so that this sharing
works.
Returns true in case of success and false if it is not possible to
create the necessary OpenGLES drawable/context.
Since 4.4.2, this function will be not be called if options()
indicates that a native window or pixmap drawable can be created
via the functions in the surfaceFunctions() object.
This function is obsolete in Qt 4.5 and higher. Use surfaceFunctions()
instead.
\sa options(), surfaceFunctions()
*/
bool
QGLScreen::chooseContext(QGLContext *context, const QGLContext *shareContext)
{
Q_UNUSED(context);
Q_UNUSED(shareContext);
return false;
}
/*!
\enum QGLScreen::Option
This enum defines options that can be set on QGLScreen instances.
\value NoOptions There are no special options on the screen. This is the default.
\value NativeWindows Native windows can be created with QGLScreenSurfaceFunctions::createNativeWindow().
\value NativePixmaps Native pixmaps can be created with QGLScreenSurfaceFunctions::createNativePixmap().
\value NativeImages Native images can be created with QGLScreenSurfaceFunctions::createNativeImage().
\value Overlays The screen supports GL overlays.
*/
/*!
\since 4.4.2
Returns the options associated with this QGLScreen.
\sa setOptions()
*/
QGLScreen::Options QGLScreen::options() const
{
return d_ptr->options;
}
/*!
\since 4.4.2
Sets the options associated with this QGLScreen to \a value.
\sa options()
*/
void QGLScreen::setOptions(QGLScreen::Options value)
{
d_ptr->options = value;
}
/*!
\since 4.4.2
Returns the surface functions object for this QGLScreen.
\sa setSurfaceFunctions()
*/
QGLScreenSurfaceFunctions *QGLScreen::surfaceFunctions() const
{
return d_ptr->functions;
}
/*!
\since 4.4.2
Sets the surface functions object for this QGLScreen to \a functions.
The QGLScreen will take over ownership of \a functions and delete
it when the QGLScreen is deleted.
\sa setSurfaceFunctions()
*/
void QGLScreen::setSurfaceFunctions(QGLScreenSurfaceFunctions *functions)
{
if (functions && functions != d_ptr->functions) {
delete d_ptr->functions;
d_ptr->functions = functions;
}
}
/*!
\internal
\preliminary
\class QGLScreenSurfaceFunctions
\brief The QGLScreenSurfaceFunctions class encapsulates the functions for creating native windows and pixmaps for OpenGL ES.
*/
/*!
\since 4.4.2
Creates a native OpenGLES drawable for the surface of \a widget and
returns it in \a native. Returns true if the OpenGLES drawable could
be created, or false if windows are not supported.
This function will be called if the NativeWindows option is set on
the screen.
\sa createNativePixmap(), createNativeImage(), QGLScreen::options()
*/
bool QGLScreenSurfaceFunctions::createNativeWindow(QWidget *widget, EGLNativeWindowType *native)
{
Q_UNUSED(widget);
Q_UNUSED(native);
return false;
}
/*!
\since 4.4.2
Creates a native OpenGLES drawable for directly rendering into
\a pixmap and returns it in \a native. Returns true if the OpenGLES
drawable could be created, or false if direct rendering into pixmaps
is not supported.
This function will be called if the NativePixmaps option is set on
the screen.
\sa createNativeWindow(), createNativeImage(), QGLScreen::options()
*/
bool QGLScreenSurfaceFunctions::createNativePixmap(QPixmap *pixmap, EGLNativePixmapType *native)
{
Q_UNUSED(pixmap);
Q_UNUSED(native);
return false;
}
/*!
\since 4.4.2
Creates a native OpenGLES drawable for directly rendering into
\a image and returns it in \a native. Returns true if the OpenGLES
drawable could be created, or false if direct rendering into images
is not supported.
This function will be called if the NativeImages option is set on
the screen.
\sa createNativeWindow(), createNativePixmap(), QGLScreen::options()
*/
bool QGLScreenSurfaceFunctions::createNativeImage(QImage *image, EGLNativePixmapType *native)
{
Q_UNUSED(image);
Q_UNUSED(native);
return false;
}
QT_END_NAMESPACE
|
