source: trunk/demos/boxes/glextensions.h

Last change on this file was 846, checked in by Dmitry A. Kuminov, 14 years ago

trunk: Merged in qt 4.7.2 sources from branches/vendor/nokia/qt.
File size: 7.2 KB
RevLine 
[2]1/****************************************************************************
2**
[846]3** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
[561]4** All rights reserved.
5** Contact: Nokia Corporation (qt-info@nokia.com)
[2]6**
7** This file is part of the demonstration applications of the Qt Toolkit.
8**
9** $QT_BEGIN_LICENSE:LGPL$
10** Commercial Usage
11** Licensees holding valid Qt Commercial licenses may use this file in
12** accordance with the Qt Commercial License Agreement provided with the
13** Software or, alternatively, in accordance with the terms contained in
14** a written agreement between you and Nokia.
15**
16** GNU Lesser General Public License Usage
17** Alternatively, this file may be used under the terms of the GNU Lesser
18** General Public License version 2.1 as published by the Free Software
19** Foundation and appearing in the file LICENSE.LGPL included in the
20** packaging of this file. Please review the following information to
21** ensure the GNU Lesser General Public License version 2.1 requirements
22** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
23**
[561]24** In addition, as a special exception, Nokia gives you certain additional
25** rights. These rights are described in the Nokia Qt LGPL Exception
26** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
[2]27**
28** GNU General Public License Usage
29** Alternatively, this file may be used under the terms of the GNU
30** General Public License version 3.0 as published by the Free Software
31** Foundation and appearing in the file LICENSE.GPL included in the
32** packaging of this file. Please review the following information to
33** ensure the GNU General Public License version 3.0 requirements will be
34** met: http://www.gnu.org/copyleft/gpl.html.
35**
[561]36** If you have questions regarding the use of this file, please contact
37** Nokia at qt-info@nokia.com.
[2]38** $QT_END_LICENSE$
39**
40****************************************************************************/
41
42#ifndef GLEXTENSIONS_H
43#define GLEXTENSIONS_H
44
45#include <QtOpenGL>
46
47/*
48Functions resolved:
49
50glGenFramebuffersEXT
51glGenRenderbuffersEXT
52glBindRenderbufferEXT
53glRenderbufferStorageEXT
54glDeleteFramebuffersEXT
55glDeleteRenderbuffersEXT
56glBindFramebufferEXT
57glFramebufferTexture2DEXT
58glFramebufferRenderbufferEXT
59glCheckFramebufferStatusEXT
60
61glActiveTexture
62glTexImage3D
63
64glGenBuffers
65glBindBuffer
66glBufferData
67glDeleteBuffers
68glMapBuffer
69glUnmapBuffer
70*/
71
72#ifndef Q_WS_MAC
73# ifndef APIENTRYP
74# ifdef APIENTRY
75# define APIENTRYP APIENTRY *
76# else
77# define APIENTRY
78# define APIENTRYP *
79# endif
80# endif
81#else
82# define APIENTRY
83# define APIENTRYP *
84#endif
85
86#ifndef GL_VERSION_1_2
87#define GL_TEXTURE_3D 0x806F
88#define GL_TEXTURE_WRAP_R 0x8072
89#define GL_CLAMP_TO_EDGE 0x812F
90#define GL_BGRA 0x80E1
91#endif
92
93#ifndef GL_VERSION_1_3
94#define GL_TEXTURE0 0x84C0
95#define GL_TEXTURE1 0x84C1
96#define GL_TEXTURE2 0x84C2
97#define GL_TEXTURE_CUBE_MAP 0x8513
98#define GL_TEXTURE_CUBE_MAP_POSITIVE_X 0x8515
99//#define GL_TEXTURE_CUBE_MAP_NEGATIVE_X 0x8516
100//#define GL_TEXTURE_CUBE_MAP_POSITIVE_Y 0x8517
101//#define GL_TEXTURE_CUBE_MAP_NEGATIVE_Y 0x8518
102//#define GL_TEXTURE_CUBE_MAP_POSITIVE_Z 0x8519
103//#define GL_TEXTURE_CUBE_MAP_NEGATIVE_Z 0x851A
104#endif
105
[561]106#ifndef GL_ARB_vertex_buffer_object
107typedef ptrdiff_t GLsizeiptrARB;
108#endif
109
[2]110#ifndef GL_VERSION_1_5
111#define GL_ARRAY_BUFFER 0x8892
112#define GL_ELEMENT_ARRAY_BUFFER 0x8893
113#define GL_READ_WRITE 0x88BA
114#define GL_STATIC_DRAW 0x88E4
115#endif
116
117#ifndef GL_EXT_framebuffer_object
118#define GL_RENDERBUFFER_EXT 0x8D41
119#define GL_FRAMEBUFFER_EXT 0x8D40
120#define GL_FRAMEBUFFER_COMPLETE_EXT 0x8CD5
121#define GL_COLOR_ATTACHMENT0_EXT 0x8CE0
122#define GL_DEPTH_ATTACHMENT_EXT 0x8D00
123#endif
124
125typedef void (APIENTRY *_glGenFramebuffersEXT) (GLsizei, GLuint *);
126typedef void (APIENTRY *_glGenRenderbuffersEXT) (GLsizei, GLuint *);
127typedef void (APIENTRY *_glBindRenderbufferEXT) (GLenum, GLuint);
128typedef void (APIENTRY *_glRenderbufferStorageEXT) (GLenum, GLenum, GLsizei, GLsizei);
129typedef void (APIENTRY *_glDeleteFramebuffersEXT) (GLsizei, const GLuint*);
130typedef void (APIENTRY *_glDeleteRenderbuffersEXT) (GLsizei, const GLuint*);
131typedef void (APIENTRY *_glBindFramebufferEXT) (GLenum, GLuint);
132typedef void (APIENTRY *_glFramebufferTexture2DEXT) (GLenum, GLenum, GLenum, GLuint, GLint);
133typedef void (APIENTRY *_glFramebufferRenderbufferEXT) (GLenum, GLenum, GLenum, GLuint);
134typedef GLenum (APIENTRY *_glCheckFramebufferStatusEXT) (GLenum);
135
136typedef void (APIENTRY *_glActiveTexture) (GLenum);
137typedef void (APIENTRY *_glTexImage3D) (GLenum, GLint, GLenum, GLsizei, GLsizei, GLsizei, GLint, GLenum, GLenum, const GLvoid *);
138
139typedef void (APIENTRY *_glGenBuffers) (GLsizei, GLuint *);
140typedef void (APIENTRY *_glBindBuffer) (GLenum, GLuint);
[561]141typedef void (APIENTRY *_glBufferData) (GLenum, GLsizeiptrARB, const GLvoid *, GLenum);
[2]142typedef void (APIENTRY *_glDeleteBuffers) (GLsizei, const GLuint *);
143typedef void *(APIENTRY *_glMapBuffer) (GLenum, GLenum);
144typedef GLboolean (APIENTRY *_glUnmapBuffer) (GLenum);
145
146struct GLExtensionFunctions
147{
148 bool resolve(const QGLContext *context);
149
150 bool fboSupported();
151 bool openGL15Supported(); // the rest: multi-texture, 3D-texture, vertex buffer objects
152
153 _glGenFramebuffersEXT GenFramebuffersEXT;
154 _glGenRenderbuffersEXT GenRenderbuffersEXT;
155 _glBindRenderbufferEXT BindRenderbufferEXT;
156 _glRenderbufferStorageEXT RenderbufferStorageEXT;
157 _glDeleteFramebuffersEXT DeleteFramebuffersEXT;
158 _glDeleteRenderbuffersEXT DeleteRenderbuffersEXT;
159 _glBindFramebufferEXT BindFramebufferEXT;
160 _glFramebufferTexture2DEXT FramebufferTexture2DEXT;
161 _glFramebufferRenderbufferEXT FramebufferRenderbufferEXT;
162 _glCheckFramebufferStatusEXT CheckFramebufferStatusEXT;
163
164 _glActiveTexture ActiveTexture;
165 _glTexImage3D TexImage3D;
166
167 _glGenBuffers GenBuffers;
168 _glBindBuffer BindBuffer;
169 _glBufferData BufferData;
170 _glDeleteBuffers DeleteBuffers;
171 _glMapBuffer MapBuffer;
172 _glUnmapBuffer UnmapBuffer;
173};
174
175inline GLExtensionFunctions &getGLExtensionFunctions()
176{
177 static GLExtensionFunctions funcs;
178 return funcs;
179}
180
181#define glGenFramebuffersEXT getGLExtensionFunctions().GenFramebuffersEXT
182#define glGenRenderbuffersEXT getGLExtensionFunctions().GenRenderbuffersEXT
183#define glBindRenderbufferEXT getGLExtensionFunctions().BindRenderbufferEXT
184#define glRenderbufferStorageEXT getGLExtensionFunctions().RenderbufferStorageEXT
185#define glDeleteFramebuffersEXT getGLExtensionFunctions().DeleteFramebuffersEXT
186#define glDeleteRenderbuffersEXT getGLExtensionFunctions().DeleteRenderbuffersEXT
187#define glBindFramebufferEXT getGLExtensionFunctions().BindFramebufferEXT
188#define glFramebufferTexture2DEXT getGLExtensionFunctions().FramebufferTexture2DEXT
189#define glFramebufferRenderbufferEXT getGLExtensionFunctions().FramebufferRenderbufferEXT
190#define glCheckFramebufferStatusEXT getGLExtensionFunctions().CheckFramebufferStatusEXT
191
192#define glActiveTexture getGLExtensionFunctions().ActiveTexture
193#define glTexImage3D getGLExtensionFunctions().TexImage3D
194
195#define glGenBuffers getGLExtensionFunctions().GenBuffers
196#define glBindBuffer getGLExtensionFunctions().BindBuffer
197#define glBufferData getGLExtensionFunctions().BufferData
198#define glDeleteBuffers getGLExtensionFunctions().DeleteBuffers
199#define glMapBuffer getGLExtensionFunctions().MapBuffer
200#define glUnmapBuffer getGLExtensionFunctions().UnmapBuffer
201
202#endif
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