source: branches/4.5.1/demos/boxes/glextensions.h

Last change on this file was 2, checked in by Dmitry A. Kuminov, 16 years ago

Initially imported qt-all-opensource-src-4.5.1 from Trolltech.
File size: 10.7 KB
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1/****************************************************************************
2**
3** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
4** Contact: Qt Software Information ([email protected])
5**
6** This file is part of the demonstration applications of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:LGPL$
9** Commercial Usage
10** Licensees holding valid Qt Commercial licenses may use this file in
11** accordance with the Qt Commercial License Agreement provided with the
12** Software or, alternatively, in accordance with the terms contained in
13** a written agreement between you and Nokia.
14**
15** GNU Lesser General Public License Usage
16** Alternatively, this file may be used under the terms of the GNU Lesser
17** General Public License version 2.1 as published by the Free Software
18** Foundation and appearing in the file LICENSE.LGPL included in the
19** packaging of this file. Please review the following information to
20** ensure the GNU Lesser General Public License version 2.1 requirements
21** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
22**
23** In addition, as a special exception, Nokia gives you certain
24** additional rights. These rights are described in the Nokia Qt LGPL
25** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
26** package.
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**
36** If you are unsure which license is appropriate for your use, please
37** contact the sales department at [email protected].
38** $QT_END_LICENSE$
39**
40****************************************************************************/
41
42#ifndef GLEXTENSIONS_H
43#define GLEXTENSIONS_H
44
45#include <QtOpenGL>
46
47/*
48Functions resolved:
49
50glCreateShaderObjectARB
51glShaderSourceARB
52glCompileShaderARB
53glGetObjectParameterivARB
54glDeleteObjectARB
55glGetInfoLogARB
56glCreateProgramObjectARB
57glAttachObjectARB
58glDetachObjectARB
59glLinkProgramARB
60glUseProgramObjectARB
61glGetUniformLocationARB
62glUniform1iARB
63glUniform1fARB
64glUniform4fARB
65glUniformMatrix4fvARB
66
67glGenFramebuffersEXT
68glGenRenderbuffersEXT
69glBindRenderbufferEXT
70glRenderbufferStorageEXT
71glDeleteFramebuffersEXT
72glDeleteRenderbuffersEXT
73glBindFramebufferEXT
74glFramebufferTexture2DEXT
75glFramebufferRenderbufferEXT
76glCheckFramebufferStatusEXT
77
78glActiveTexture
79glTexImage3D
80
81glGenBuffers
82glBindBuffer
83glBufferData
84glDeleteBuffers
85glMapBuffer
86glUnmapBuffer
87*/
88
89#ifndef Q_WS_MAC
90# ifndef APIENTRYP
91# ifdef APIENTRY
92# define APIENTRYP APIENTRY *
93# else
94# define APIENTRY
95# define APIENTRYP *
96# endif
97# endif
98#else
99# define APIENTRY
100# define APIENTRYP *
101#endif
102
103#ifndef GL_VERSION_1_2
104#define GL_TEXTURE_3D 0x806F
105#define GL_TEXTURE_WRAP_R 0x8072
106#define GL_CLAMP_TO_EDGE 0x812F
107#define GL_BGRA 0x80E1
108#endif
109
110#ifndef GL_VERSION_1_3
111#define GL_TEXTURE0 0x84C0
112#define GL_TEXTURE1 0x84C1
113#define GL_TEXTURE2 0x84C2
114#define GL_TEXTURE_CUBE_MAP 0x8513
115#define GL_TEXTURE_CUBE_MAP_POSITIVE_X 0x8515
116//#define GL_TEXTURE_CUBE_MAP_NEGATIVE_X 0x8516
117//#define GL_TEXTURE_CUBE_MAP_POSITIVE_Y 0x8517
118//#define GL_TEXTURE_CUBE_MAP_NEGATIVE_Y 0x8518
119//#define GL_TEXTURE_CUBE_MAP_POSITIVE_Z 0x8519
120//#define GL_TEXTURE_CUBE_MAP_NEGATIVE_Z 0x851A
121#endif
122
123#ifndef GL_VERSION_1_5
124typedef ptrdiff_t GLsizeiptr;
125#define GL_ARRAY_BUFFER 0x8892
126#define GL_ELEMENT_ARRAY_BUFFER 0x8893
127#define GL_READ_WRITE 0x88BA
128#define GL_STATIC_DRAW 0x88E4
129#endif
130
131#ifndef GL_EXT_framebuffer_object
132#define GL_RENDERBUFFER_EXT 0x8D41
133#define GL_FRAMEBUFFER_EXT 0x8D40
134#define GL_FRAMEBUFFER_COMPLETE_EXT 0x8CD5
135#define GL_COLOR_ATTACHMENT0_EXT 0x8CE0
136#define GL_DEPTH_ATTACHMENT_EXT 0x8D00
137#endif
138
139#ifndef GL_ARB_vertex_shader
140#define GL_VERTEX_SHADER_ARB 0x8B31
141#endif
142
143#ifndef GL_ARB_fragment_shader
144#define GL_FRAGMENT_SHADER_ARB 0x8B30
145#endif
146
147#ifndef GL_ARB_shader_objects
148typedef char GLcharARB;
149typedef unsigned int GLhandleARB;
150#define GL_OBJECT_COMPILE_STATUS_ARB 0x8B81
151#define GL_OBJECT_LINK_STATUS_ARB 0x8B82
152#define GL_OBJECT_INFO_LOG_LENGTH_ARB 0x8B84
153#endif
154
155typedef GLhandleARB (APIENTRY *_glCreateShaderObjectARB) (GLenum);
156typedef void (APIENTRY *_glShaderSourceARB) (GLhandleARB, GLuint, const GLcharARB**, GLint *);
157typedef void (APIENTRY *_glCompileShaderARB) (GLhandleARB);
158typedef void (APIENTRY *_glGetObjectParameterivARB) (GLhandleARB, GLenum, int *);
159typedef void (APIENTRY *_glDeleteObjectARB) (GLhandleARB);
160typedef void (APIENTRY *_glGetInfoLogARB) (GLhandleARB, GLsizei, GLsizei *, GLcharARB *);
161typedef GLhandleARB (APIENTRY *_glCreateProgramObjectARB) ();
162typedef void (APIENTRY *_glAttachObjectARB) (GLhandleARB, GLhandleARB);
163typedef void (APIENTRY *_glDetachObjectARB) (GLhandleARB, GLhandleARB);
164typedef void (APIENTRY *_glLinkProgramARB) (GLhandleARB);
165typedef void (APIENTRY *_glUseProgramObjectARB) (GLhandleARB);
166typedef GLint (APIENTRY *_glGetUniformLocationARB) (GLhandleARB, const GLcharARB *);
167typedef void (APIENTRY *_glUniform1iARB) (GLint, GLint);
168typedef void (APIENTRY *_glUniform1fARB) (GLint, GLfloat);
169typedef void (APIENTRY *_glUniform4fARB) (GLint, GLfloat, GLfloat, GLfloat, GLfloat);
170typedef void (APIENTRY *_glUniformMatrix4fvARB) (GLint, GLuint, GLboolean, const GLfloat *);
171
172typedef void (APIENTRY *_glGenFramebuffersEXT) (GLsizei, GLuint *);
173typedef void (APIENTRY *_glGenRenderbuffersEXT) (GLsizei, GLuint *);
174typedef void (APIENTRY *_glBindRenderbufferEXT) (GLenum, GLuint);
175typedef void (APIENTRY *_glRenderbufferStorageEXT) (GLenum, GLenum, GLsizei, GLsizei);
176typedef void (APIENTRY *_glDeleteFramebuffersEXT) (GLsizei, const GLuint*);
177typedef void (APIENTRY *_glDeleteRenderbuffersEXT) (GLsizei, const GLuint*);
178typedef void (APIENTRY *_glBindFramebufferEXT) (GLenum, GLuint);
179typedef void (APIENTRY *_glFramebufferTexture2DEXT) (GLenum, GLenum, GLenum, GLuint, GLint);
180typedef void (APIENTRY *_glFramebufferRenderbufferEXT) (GLenum, GLenum, GLenum, GLuint);
181typedef GLenum (APIENTRY *_glCheckFramebufferStatusEXT) (GLenum);
182
183typedef void (APIENTRY *_glActiveTexture) (GLenum);
184typedef void (APIENTRY *_glTexImage3D) (GLenum, GLint, GLenum, GLsizei, GLsizei, GLsizei, GLint, GLenum, GLenum, const GLvoid *);
185
186typedef void (APIENTRY *_glGenBuffers) (GLsizei, GLuint *);
187typedef void (APIENTRY *_glBindBuffer) (GLenum, GLuint);
188typedef void (APIENTRY *_glBufferData) (GLenum, GLsizeiptr, const GLvoid *, GLenum);
189typedef void (APIENTRY *_glDeleteBuffers) (GLsizei, const GLuint *);
190typedef void *(APIENTRY *_glMapBuffer) (GLenum, GLenum);
191typedef GLboolean (APIENTRY *_glUnmapBuffer) (GLenum);
192
193struct GLExtensionFunctions
194{
195 bool resolve(const QGLContext *context);
196
197 bool glslSupported();
198 bool fboSupported();
199 bool openGL15Supported(); // the rest: multi-texture, 3D-texture, vertex buffer objects
200
201 _glCreateShaderObjectARB CreateShaderObjectARB;
202 _glShaderSourceARB ShaderSourceARB;
203 _glCompileShaderARB CompileShaderARB;
204 _glGetObjectParameterivARB GetObjectParameterivARB;
205 _glDeleteObjectARB DeleteObjectARB;
206 _glGetInfoLogARB GetInfoLogARB;
207 _glCreateProgramObjectARB CreateProgramObjectARB;
208 _glAttachObjectARB AttachObjectARB;
209 _glDetachObjectARB DetachObjectARB;
210 _glLinkProgramARB LinkProgramARB;
211 _glUseProgramObjectARB UseProgramObjectARB;
212 _glGetUniformLocationARB GetUniformLocationARB;
213 _glUniform1iARB Uniform1iARB;
214 _glUniform1fARB Uniform1fARB;
215 _glUniform4fARB Uniform4fARB;
216 _glUniformMatrix4fvARB UniformMatrix4fvARB;
217
218 _glGenFramebuffersEXT GenFramebuffersEXT;
219 _glGenRenderbuffersEXT GenRenderbuffersEXT;
220 _glBindRenderbufferEXT BindRenderbufferEXT;
221 _glRenderbufferStorageEXT RenderbufferStorageEXT;
222 _glDeleteFramebuffersEXT DeleteFramebuffersEXT;
223 _glDeleteRenderbuffersEXT DeleteRenderbuffersEXT;
224 _glBindFramebufferEXT BindFramebufferEXT;
225 _glFramebufferTexture2DEXT FramebufferTexture2DEXT;
226 _glFramebufferRenderbufferEXT FramebufferRenderbufferEXT;
227 _glCheckFramebufferStatusEXT CheckFramebufferStatusEXT;
228
229 _glActiveTexture ActiveTexture;
230 _glTexImage3D TexImage3D;
231
232 _glGenBuffers GenBuffers;
233 _glBindBuffer BindBuffer;
234 _glBufferData BufferData;
235 _glDeleteBuffers DeleteBuffers;
236 _glMapBuffer MapBuffer;
237 _glUnmapBuffer UnmapBuffer;
238};
239
240inline GLExtensionFunctions &getGLExtensionFunctions()
241{
242 static GLExtensionFunctions funcs;
243 return funcs;
244}
245
246#define glCreateShaderObjectARB getGLExtensionFunctions().CreateShaderObjectARB
247#define glShaderSourceARB getGLExtensionFunctions().ShaderSourceARB
248#define glCompileShaderARB getGLExtensionFunctions().CompileShaderARB
249#define glGetObjectParameterivARB getGLExtensionFunctions().GetObjectParameterivARB
250#define glDeleteObjectARB getGLExtensionFunctions().DeleteObjectARB
251#define glGetInfoLogARB getGLExtensionFunctions().GetInfoLogARB
252#define glCreateProgramObjectARB getGLExtensionFunctions().CreateProgramObjectARB
253#define glAttachObjectARB getGLExtensionFunctions().AttachObjectARB
254#define glDetachObjectARB getGLExtensionFunctions().DetachObjectARB
255#define glLinkProgramARB getGLExtensionFunctions().LinkProgramARB
256#define glUseProgramObjectARB getGLExtensionFunctions().UseProgramObjectARB
257#define glGetUniformLocationARB getGLExtensionFunctions().GetUniformLocationARB
258#define glUniform1iARB getGLExtensionFunctions().Uniform1iARB
259#define glUniform1fARB getGLExtensionFunctions().Uniform1fARB
260#define glUniform4fARB getGLExtensionFunctions().Uniform4fARB
261#define glUniformMatrix4fvARB getGLExtensionFunctions().UniformMatrix4fvARB
262
263#define glGenFramebuffersEXT getGLExtensionFunctions().GenFramebuffersEXT
264#define glGenRenderbuffersEXT getGLExtensionFunctions().GenRenderbuffersEXT
265#define glBindRenderbufferEXT getGLExtensionFunctions().BindRenderbufferEXT
266#define glRenderbufferStorageEXT getGLExtensionFunctions().RenderbufferStorageEXT
267#define glDeleteFramebuffersEXT getGLExtensionFunctions().DeleteFramebuffersEXT
268#define glDeleteRenderbuffersEXT getGLExtensionFunctions().DeleteRenderbuffersEXT
269#define glBindFramebufferEXT getGLExtensionFunctions().BindFramebufferEXT
270#define glFramebufferTexture2DEXT getGLExtensionFunctions().FramebufferTexture2DEXT
271#define glFramebufferRenderbufferEXT getGLExtensionFunctions().FramebufferRenderbufferEXT
272#define glCheckFramebufferStatusEXT getGLExtensionFunctions().CheckFramebufferStatusEXT
273
274#define glActiveTexture getGLExtensionFunctions().ActiveTexture
275#define glTexImage3D getGLExtensionFunctions().TexImage3D
276
277#define glGenBuffers getGLExtensionFunctions().GenBuffers
278#define glBindBuffer getGLExtensionFunctions().BindBuffer
279#define glBufferData getGLExtensionFunctions().BufferData
280#define glDeleteBuffers getGLExtensionFunctions().DeleteBuffers
281#define glMapBuffer getGLExtensionFunctions().MapBuffer
282#define glUnmapBuffer getGLExtensionFunctions().UnmapBuffer
283
284#endif
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