3 * Copyright (c) 2001 César Blecua Udías All Rights Reserved.
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be included
13 * in all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * CESAR BLECUA UDIAS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
19 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
20 * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
24 #ifndef __SG_EXTENSIONS_HXX
25 #define __SG_EXTENSIONS_HXX 1
27 #if defined(WIN32) && !defined(__CYGWIN__) && !defined(__MINGW32__)
36 #if defined(__cplusplus)
44 // static bool SGSearchExtensionsString(char *extString, char *extName);
45 bool SGIsOpenGLExtensionSupported(char *extName);
48 // don't use an inline function for symbol lookup, since it is too big
49 void* macosxGetGLProcAddress(const char *func);
52 inline void (*SGLookupFunction(const char *func))()
54 #if defined( WIN32 ) && !defined(__CYGWIN__) && !defined(__MINGW32__)
55 return (void (*)()) wglGetProcAddress(func);
57 #elif defined( __APPLE__ )
58 return (void (*)()) macosxGetGLProcAddress(func);
62 // If the target system s UNIX and the ARB_get_proc_address
63 // GLX extension is *not* guaranteed to be supported. An alternative
64 // dlsym-based approach will be used instead.
68 libHandle = dlopen("libGL.so", RTLD_LAZY);
69 fptr = (void (*)()) dlsym(libHandle, func);
77 /* OpenGL extension declarations */
80 * glPointParameterf and glPointParameterfv
82 #ifndef GL_EXT_point_parameters
83 #define GL_EXT_point_parameters 1
84 #define GL_POINT_SIZE_MIN_EXT 0x8126
85 #define GL_DISTANCE_ATTENUATION_EXT 0x8129
88 #ifndef GL_ARB_point_parameters
89 #define GL_ARB_point_parameters 1
90 #define GL_POINT_SIZE_MIN_ARB 0x8126
91 #define GL_DISTANCE_ATTENUATION_ARB 0x8129
94 typedef void (APIENTRY * glPointParameterfProc)(GLenum pname, GLfloat param);
95 typedef void (APIENTRY * glPointParameterfvProc)(GLenum pname, const GLfloat *params);
101 #ifndef GL_ARB_multitexture
102 #define GL_ARB_multitexture 1
103 #define GL_TEXTURE0_ARB 0x84C0
104 #define GL_TEXTURE1_ARB 0x84C1
105 #define GL_TEXTURE2_ARB 0x84C2
106 #define GL_TEXTURE3_ARB 0x84C3
107 #define GL_TEXTURE4_ARB 0x84C4
108 #define GL_TEXTURE5_ARB 0x84C5
109 #define GL_TEXTURE6_ARB 0x84C6
110 #define GL_TEXTURE7_ARB 0x84C7
111 #define GL_TEXTURE8_ARB 0x84C8
112 #define GL_TEXTURE9_ARB 0x84C9
113 #define GL_TEXTURE10_ARB 0x84CA
114 #define GL_TEXTURE11_ARB 0x84CB
115 #define GL_TEXTURE12_ARB 0x84CC
116 #define GL_TEXTURE13_ARB 0x84CD
117 #define GL_TEXTURE14_ARB 0x84CE
118 #define GL_TEXTURE15_ARB 0x84CF
119 #define GL_TEXTURE16_ARB 0x84D0
120 #define GL_TEXTURE17_ARB 0x84D1
121 #define GL_TEXTURE18_ARB 0x84D2
122 #define GL_TEXTURE19_ARB 0x84D3
123 #define GL_TEXTURE20_ARB 0x84D4
124 #define GL_TEXTURE21_ARB 0x84D5
125 #define GL_TEXTURE22_ARB 0x84D6
126 #define GL_TEXTURE23_ARB 0x84D7
127 #define GL_TEXTURE24_ARB 0x84D8
128 #define GL_TEXTURE25_ARB 0x84D9
129 #define GL_TEXTURE26_ARB 0x84DA
130 #define GL_TEXTURE27_ARB 0x84DB
131 #define GL_TEXTURE28_ARB 0x84DC
132 #define GL_TEXTURE29_ARB 0x84DD
133 #define GL_TEXTURE30_ARB 0x84DE
134 #define GL_TEXTURE31_ARB 0x84DF
135 #define GL_ACTIVE_TEXTURE_ARB 0x84E0
136 #define GL_CLIENT_ACTIVE_TEXTURE_ARB 0x84E1
137 #define GL_MAX_TEXTURE_UNITS_ARB 0x84E2
140 typedef void (APIENTRY * glActiveTextureProc)(GLenum texture);
142 #if defined(__cplusplus)
146 #endif // !__SG_EXTENSIONS_HXX