1 | /**************************************************************************** |
2 | ** |
3 | ** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies). |
4 | ** Contact: http://www.qt-project.org/legal |
5 | ** |
6 | ** This file is part of the QtOpenGL 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 |
11 | ** accordance with the commercial license agreement provided with the |
12 | ** Software or, alternatively, in accordance with the terms contained in |
13 | ** a written agreement between you and Digia. For licensing terms and |
14 | ** conditions see http://qt.digia.com/licensing. For further information |
15 | ** use the contact form at http://qt.digia.com/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 2.1 as published by the Free Software |
20 | ** Foundation and appearing in the file LICENSE.LGPL included in the |
21 | ** packaging of this file. Please review the following information to |
22 | ** ensure the GNU Lesser General Public License version 2.1 requirements |
23 | ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
24 | ** |
25 | ** In addition, as a special exception, Digia gives you certain additional |
26 | ** rights. These rights are described in the Digia Qt LGPL Exception |
27 | ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
28 | ** |
29 | ** GNU General Public License Usage |
30 | ** Alternatively, this file may be used under the terms of the GNU |
31 | ** General Public License version 3.0 as published by the Free Software |
32 | ** Foundation and appearing in the file LICENSE.GPL included in the |
33 | ** packaging of this file. Please review the following information to |
34 | ** ensure the GNU General Public License version 3.0 requirements will be |
35 | ** met: http://www.gnu.org/copyleft/gpl.html. |
36 | ** |
37 | ** |
38 | ** $QT_END_LICENSE$ |
39 | ** |
40 | ****************************************************************************/ |
41 | |
42 | #ifndef QGLBUFFER_H |
43 | #define QGLBUFFER_H |
44 | |
45 | #include <QtCore/qscopedpointer.h> |
46 | #include <QtOpenGL/qgl.h> |
47 | |
48 | QT_BEGIN_HEADER |
49 | |
50 | QT_BEGIN_NAMESPACE |
51 | |
52 | QT_MODULE(OpenGL) |
53 | |
54 | class QGLBufferPrivate; |
55 | |
56 | class Q_OPENGL_EXPORT QGLBuffer |
57 | { |
58 | public: |
59 | enum Type |
60 | { |
61 | VertexBuffer = 0x8892, // GL_ARRAY_BUFFER |
62 | IndexBuffer = 0x8893, // GL_ELEMENT_ARRAY_BUFFER |
63 | PixelPackBuffer = 0x88EB, // GL_PIXEL_PACK_BUFFER |
64 | PixelUnpackBuffer = 0x88EC // GL_PIXEL_UNPACK_BUFFER |
65 | }; |
66 | |
67 | QGLBuffer(); |
68 | explicit QGLBuffer(QGLBuffer::Type type); |
69 | QGLBuffer(const QGLBuffer &other); |
70 | ~QGLBuffer(); |
71 | |
72 | QGLBuffer &operator=(const QGLBuffer &other); |
73 | |
74 | enum UsagePattern |
75 | { |
76 | StreamDraw = 0x88E0, // GL_STREAM_DRAW |
77 | StreamRead = 0x88E1, // GL_STREAM_READ |
78 | StreamCopy = 0x88E2, // GL_STREAM_COPY |
79 | StaticDraw = 0x88E4, // GL_STATIC_DRAW |
80 | StaticRead = 0x88E5, // GL_STATIC_READ |
81 | StaticCopy = 0x88E6, // GL_STATIC_COPY |
82 | DynamicDraw = 0x88E8, // GL_DYNAMIC_DRAW |
83 | DynamicRead = 0x88E9, // GL_DYNAMIC_READ |
84 | DynamicCopy = 0x88EA // GL_DYNAMIC_COPY |
85 | }; |
86 | |
87 | enum Access |
88 | { |
89 | ReadOnly = 0x88B8, // GL_READ_ONLY |
90 | WriteOnly = 0x88B9, // GL_WRITE_ONLY |
91 | ReadWrite = 0x88BA // GL_READ_WRITE |
92 | }; |
93 | |
94 | QGLBuffer::Type type() const; |
95 | |
96 | QGLBuffer::UsagePattern usagePattern() const; |
97 | void setUsagePattern(QGLBuffer::UsagePattern value); |
98 | |
99 | bool create(); |
100 | bool isCreated() const; |
101 | |
102 | void destroy(); |
103 | |
104 | bool bind(); |
105 | void release(); |
106 | |
107 | static void release(QGLBuffer::Type type); |
108 | |
109 | GLuint bufferId() const; |
110 | |
111 | int size() const; |
112 | |
113 | bool read(int offset, void *data, int count); |
114 | void write(int offset, const void *data, int count); |
115 | |
116 | void allocate(const void *data, int count); |
117 | inline void allocate(int count) { allocate(0, count); } |
118 | |
119 | void *map(QGLBuffer::Access access); |
120 | bool unmap(); |
121 | |
122 | private: |
123 | QGLBufferPrivate *d_ptr; |
124 | |
125 | Q_DECLARE_PRIVATE(QGLBuffer) |
126 | }; |
127 | |
128 | QT_END_NAMESPACE |
129 | |
130 | QT_END_HEADER |
131 | |
132 | #endif |
133 | |