1/****************************************************************************
2**
3** Copyright (C) 2014 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Sean Harmer <sean.harmer@kdab.com>
4** Contact: https://www.qt.io/licensing/
5**
6** This file is part of the QtGui 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
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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
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38****************************************************************************/
39
40#ifndef QOPENGLVERTEXARRAYOBJECT_H
41#define QOPENGLVERTEXARRAYOBJECT_H
42
43#include <QtGui/qtguiglobal.h>
44
45#ifndef QT_NO_OPENGL
46
47#include <QtCore/QObject>
48#include <QtGui/qopengl.h>
49
50QT_BEGIN_NAMESPACE
51
52class QOpenGLVertexArrayObjectPrivate;
53
54class Q_GUI_EXPORT QOpenGLVertexArrayObject : public QObject
55{
56 Q_OBJECT
57
58public:
59 explicit QOpenGLVertexArrayObject(QObject* parent = nullptr);
60 ~QOpenGLVertexArrayObject();
61
62 bool create();
63 void destroy();
64 bool isCreated() const;
65 GLuint objectId() const;
66 void bind();
67 void release();
68
69 class Q_GUI_EXPORT Binder
70 {
71 public:
72 inline Binder(QOpenGLVertexArrayObject *v)
73 : vao(v)
74 {
75 Q_ASSERT(v);
76 if (vao->isCreated() || vao->create())
77 vao->bind();
78 }
79
80 inline ~Binder()
81 {
82 release();
83 }
84
85 inline void release()
86 {
87 vao->release();
88 }
89
90 inline void rebind()
91 {
92 vao->bind();
93 }
94
95 private:
96 Q_DISABLE_COPY(Binder)
97 QOpenGLVertexArrayObject *vao;
98 };
99
100private:
101 Q_DISABLE_COPY(QOpenGLVertexArrayObject)
102 Q_DECLARE_PRIVATE(QOpenGLVertexArrayObject)
103 Q_PRIVATE_SLOT(d_func(), void _q_contextAboutToBeDestroyed())
104 QOpenGLVertexArrayObject(QOpenGLVertexArrayObjectPrivate &dd);
105};
106
107QT_END_NAMESPACE
108
109#endif
110
111#endif // QOPENGLVERTEXARRAYOBJECT_H
112