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(__CYGWIN__) /* && !defined(USING_X) */
31 #if defined(WIN32) /* MINGW and MSC predefine WIN32 */
42 #if defined(__cplusplus)
50 // static bool SGSearchExtensionsString(char *extString, char *extName);
51 bool SGIsOpenGLExtensionSupported(char *extName);
54 // don't use an inline function for symbol lookup, since it is too big
55 void* macosxGetGLProcAddress(const char *func);
58 inline void (*SGLookupFunction(const char *func))()
61 return (void (*)()) wglGetProcAddress(func);
63 #elif defined( __APPLE__ )
64 return (void (*)()) macosxGetGLProcAddress(func);
68 // If the target system s UNIX and the ARB_get_proc_address
69 // GLX extension is *not* guaranteed to be supported. An alternative
70 // dlsym-based approach will be used instead.
74 libHandle = dlopen("libGL.so", RTLD_LAZY);
75 fptr = (void (*)()) dlsym(libHandle, func);
83 /* OpenGL extension declarations */
86 * glPointParameterf and glPointParameterfv
88 #ifndef GL_EXT_point_parameters
89 #define GL_EXT_point_parameters 1
90 #define GL_POINT_SIZE_MIN_EXT 0x8126
91 #define GL_DISTANCE_ATTENUATION_EXT 0x8129
94 #ifndef GL_ARB_point_parameters
95 #define GL_ARB_point_parameters 1
96 #define GL_POINT_SIZE_MIN_ARB 0x8126
97 #define GL_DISTANCE_ATTENUATION_ARB 0x8129
100 typedef void (APIENTRY * glPointParameterfProc)(GLenum pname, GLfloat param);
101 typedef void (APIENTRY * glPointParameterfvProc)(GLenum pname, const GLfloat *params);
107 #ifndef GL_ARB_multitexture
108 #define GL_ARB_multitexture 1
109 #define GL_TEXTURE0_ARB 0x84C0
110 #define GL_TEXTURE1_ARB 0x84C1
111 #define GL_TEXTURE2_ARB 0x84C2
112 #define GL_TEXTURE3_ARB 0x84C3
113 #define GL_TEXTURE4_ARB 0x84C4
114 #define GL_TEXTURE5_ARB 0x84C5
115 #define GL_TEXTURE6_ARB 0x84C6
116 #define GL_TEXTURE7_ARB 0x84C7
117 #define GL_TEXTURE8_ARB 0x84C8
118 #define GL_TEXTURE9_ARB 0x84C9
119 #define GL_TEXTURE10_ARB 0x84CA
120 #define GL_TEXTURE11_ARB 0x84CB
121 #define GL_TEXTURE12_ARB 0x84CC
122 #define GL_TEXTURE13_ARB 0x84CD
123 #define GL_TEXTURE14_ARB 0x84CE
124 #define GL_TEXTURE15_ARB 0x84CF
125 #define GL_TEXTURE16_ARB 0x84D0
126 #define GL_TEXTURE17_ARB 0x84D1
127 #define GL_TEXTURE18_ARB 0x84D2
128 #define GL_TEXTURE19_ARB 0x84D3
129 #define GL_TEXTURE20_ARB 0x84D4
130 #define GL_TEXTURE21_ARB 0x84D5
131 #define GL_TEXTURE22_ARB 0x84D6
132 #define GL_TEXTURE23_ARB 0x84D7
133 #define GL_TEXTURE24_ARB 0x84D8
134 #define GL_TEXTURE25_ARB 0x84D9
135 #define GL_TEXTURE26_ARB 0x84DA
136 #define GL_TEXTURE27_ARB 0x84DB
137 #define GL_TEXTURE28_ARB 0x84DC
138 #define GL_TEXTURE29_ARB 0x84DD
139 #define GL_TEXTURE30_ARB 0x84DE
140 #define GL_TEXTURE31_ARB 0x84DF
141 #define GL_ACTIVE_TEXTURE_ARB 0x84E0
142 #define GL_CLIENT_ACTIVE_TEXTURE_ARB 0x84E1
143 #define GL_MAX_TEXTURE_UNITS_ARB 0x84E2
146 typedef void (APIENTRY * glActiveTextureProc)(GLenum texture);
149 * GL_EXT_separate_specular_color
152 #ifndef GL_LIGHT_MODEL_COLOR_CONTROL
153 #define GL_LIGHT_MODEL_COLOR_CONTROL 0x81F8
154 #define GL_SINGLE_COLOR 0x81F9
155 #define GL_SEPARATE_SPECULAR_COLOR 0x81FA
158 #if defined(__cplusplus)
162 #endif // !__SG_EXTENSIONS_HXX