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
|
/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtOpenGL module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 https://www.qt.io/terms-conditions. For further
** information use the contact form at https://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 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QOPENGLBUFFER_H
#define QOPENGLBUFFER_H
#include <QtOpenGL/qtopenglglobal.h>
#ifndef QT_NO_OPENGL
#include <QtCore/qscopedpointer.h>
#include <QtGui/qopengl.h>
QT_BEGIN_NAMESPACE
class QOpenGLBufferPrivate;
class Q_OPENGL_EXPORT QOpenGLBuffer
{
public:
enum Type
{
VertexBuffer = 0x8892, // GL_ARRAY_BUFFER
IndexBuffer = 0x8893, // GL_ELEMENT_ARRAY_BUFFER
PixelPackBuffer = 0x88EB, // GL_PIXEL_PACK_BUFFER
PixelUnpackBuffer = 0x88EC // GL_PIXEL_UNPACK_BUFFER
};
QOpenGLBuffer();
explicit QOpenGLBuffer(QOpenGLBuffer::Type type);
QOpenGLBuffer(const QOpenGLBuffer &other);
~QOpenGLBuffer();
QOpenGLBuffer &operator=(const QOpenGLBuffer &other);
enum UsagePattern
{
StreamDraw = 0x88E0, // GL_STREAM_DRAW
StreamRead = 0x88E1, // GL_STREAM_READ
StreamCopy = 0x88E2, // GL_STREAM_COPY
StaticDraw = 0x88E4, // GL_STATIC_DRAW
StaticRead = 0x88E5, // GL_STATIC_READ
StaticCopy = 0x88E6, // GL_STATIC_COPY
DynamicDraw = 0x88E8, // GL_DYNAMIC_DRAW
DynamicRead = 0x88E9, // GL_DYNAMIC_READ
DynamicCopy = 0x88EA // GL_DYNAMIC_COPY
};
enum Access
{
ReadOnly = 0x88B8, // GL_READ_ONLY
WriteOnly = 0x88B9, // GL_WRITE_ONLY
ReadWrite = 0x88BA // GL_READ_WRITE
};
enum RangeAccessFlag
{
RangeRead = 0x0001, // GL_MAP_READ_BIT
RangeWrite = 0x0002, // GL_MAP_WRITE_BIT
RangeInvalidate = 0x0004, // GL_MAP_INVALIDATE_RANGE_BIT
RangeInvalidateBuffer = 0x0008, // GL_MAP_INVALIDATE_BUFFER_BIT
RangeFlushExplicit = 0x0010, // GL_MAP_FLUSH_EXPLICIT_BIT
RangeUnsynchronized = 0x0020 // GL_MAP_UNSYNCHRONIZED_BIT
};
Q_DECLARE_FLAGS(RangeAccessFlags, RangeAccessFlag)
QOpenGLBuffer::Type type() const;
QOpenGLBuffer::UsagePattern usagePattern() const;
void setUsagePattern(QOpenGLBuffer::UsagePattern value);
bool create();
bool isCreated() const;
void destroy();
bool bind();
void release();
static void release(QOpenGLBuffer::Type type);
GLuint bufferId() const;
int size() const;
bool read(int offset, void *data, int count);
void write(int offset, const void *data, int count);
void allocate(const void *data, int count);
inline void allocate(int count) { allocate(nullptr, count); }
void *map(QOpenGLBuffer::Access access);
void *mapRange(int offset, int count, QOpenGLBuffer::RangeAccessFlags access);
bool unmap();
private:
QOpenGLBufferPrivate *d_ptr;
Q_DECLARE_PRIVATE(QOpenGLBuffer)
};
Q_DECLARE_OPERATORS_FOR_FLAGS(QOpenGLBuffer::RangeAccessFlags)
QT_END_NAMESPACE
#endif // QT_NO_OPENGL
#endif
|
