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);
82 * OpenGL 1.2 and 1.3 enumerants
85 #ifndef GL_CLAMP_TO_EDGE
86 #define GL_CLAMP_TO_EDGE 0x812F
89 #ifndef GL_TEXTURE_WRAP_R
90 #define GL_TEXTURE_WRAP_R 0x8072
94 /* OpenGL extension declarations */
97 * glPointParameterf and glPointParameterfv
99 #ifndef GL_EXT_point_parameters
100 #define GL_EXT_point_parameters 1
101 #define GL_POINT_SIZE_MIN_EXT 0x8126
102 #define GL_DISTANCE_ATTENUATION_EXT 0x8129
105 #ifndef GL_ARB_point_parameters
106 #define GL_ARB_point_parameters 1
107 #define GL_POINT_SIZE_MIN_ARB 0x8126
108 #define GL_DISTANCE_ATTENUATION_ARB 0x8129
111 typedef void (APIENTRY * glPointParameterfProc)(GLenum pname, GLfloat param);
112 typedef void (APIENTRY * glPointParameterfvProc)(GLenum pname, const GLfloat *params);
118 #ifndef GL_ARB_multitexture
119 #define GL_ARB_multitexture 1
120 #define GL_TEXTURE0_ARB 0x84C0
121 #define GL_TEXTURE1_ARB 0x84C1
122 #define GL_TEXTURE2_ARB 0x84C2
123 #define GL_TEXTURE3_ARB 0x84C3
124 #define GL_TEXTURE4_ARB 0x84C4
125 #define GL_TEXTURE5_ARB 0x84C5
126 #define GL_TEXTURE6_ARB 0x84C6
127 #define GL_TEXTURE7_ARB 0x84C7
128 #define GL_TEXTURE8_ARB 0x84C8
129 #define GL_TEXTURE9_ARB 0x84C9
130 #define GL_TEXTURE10_ARB 0x84CA
131 #define GL_TEXTURE11_ARB 0x84CB
132 #define GL_TEXTURE12_ARB 0x84CC
133 #define GL_TEXTURE13_ARB 0x84CD
134 #define GL_TEXTURE14_ARB 0x84CE
135 #define GL_TEXTURE15_ARB 0x84CF
136 #define GL_TEXTURE16_ARB 0x84D0
137 #define GL_TEXTURE17_ARB 0x84D1
138 #define GL_TEXTURE18_ARB 0x84D2
139 #define GL_TEXTURE19_ARB 0x84D3
140 #define GL_TEXTURE20_ARB 0x84D4
141 #define GL_TEXTURE21_ARB 0x84D5
142 #define GL_TEXTURE22_ARB 0x84D6
143 #define GL_TEXTURE23_ARB 0x84D7
144 #define GL_TEXTURE24_ARB 0x84D8
145 #define GL_TEXTURE25_ARB 0x84D9
146 #define GL_TEXTURE26_ARB 0x84DA
147 #define GL_TEXTURE27_ARB 0x84DB
148 #define GL_TEXTURE28_ARB 0x84DC
149 #define GL_TEXTURE29_ARB 0x84DD
150 #define GL_TEXTURE30_ARB 0x84DE
151 #define GL_TEXTURE31_ARB 0x84DF
152 #define GL_ACTIVE_TEXTURE_ARB 0x84E0
153 #define GL_CLIENT_ACTIVE_TEXTURE_ARB 0x84E1
154 #define GL_MAX_TEXTURE_UNITS_ARB 0x84E2
157 typedef void (APIENTRY * glActiveTextureProc)(GLenum texture);
158 typedef void (APIENTRY * glClientActiveTextureProc)(GLenum texture);
161 * GL_EXT_separate_specular_color
164 #ifndef GL_LIGHT_MODEL_COLOR_CONTROL
165 #define GL_LIGHT_MODEL_COLOR_CONTROL 0x81F8
166 #define GL_SINGLE_COLOR 0x81F9
167 #define GL_SEPARATE_SPECULAR_COLOR 0x81FA
171 * GL_ARB_texture_cube_map
174 #ifndef GL_ARB_texture_cube_map
175 #define GL_ARB_texture_cube_map 1
176 #define GL_NORMAL_MAP_ARB 0x8511
177 #define GL_REFLECTION_MAP_ARB 0x8512
178 #define GL_TEXTURE_CUBE_MAP_ARB 0x8513
179 #define GL_TEXTURE_BINDING_CUBE_MAP_ARB 0x8514
180 #define GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB 0x8515
181 #define GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB 0x8516
182 #define GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB 0x8517
183 #define GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB 0x8518
184 #define GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB 0x8519
185 #define GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB 0x851A
186 #define GL_PROXY_TEXTURE_CUBE_MAP_ARB 0x851B
187 #define GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB 0x851C
191 * GL_ARB_texture_env_combine
194 #ifndef GL_ARB_texture_env_combine
195 #define GL_ARB_texture_env_combine 1
196 #define GL_COMBINE_ARB 0x8570
197 #define GL_COMBINE_RGB_ARB 0x8571
198 #define GL_COMBINE_ALPHA_ARB 0x8572
199 #define GL_RGB_SCALE_ARB 0x8573
200 #define GL_ADD_SIGNED_ARB 0x8574
201 #define GL_INTERPOLATE_ARB 0x8575
202 #define GL_CONSTANT_ARB 0x8576
203 #define GL_PRIMARY_COLOR_ARB 0x8577
204 #define GL_PREVIOUS_ARB 0x8578
205 #define GL_SOURCE0_RGB_ARB 0x8580
206 #define GL_SOURCE1_RGB_ARB 0x8581
207 #define GL_SOURCE2_RGB_ARB 0x8582
208 #define GL_SOURCE0_ALPHA_ARB 0x8588
209 #define GL_SOURCE1_ALPHA_ARB 0x8589
210 #define GL_SOURCE2_ALPHA_ARB 0x858A
211 #define GL_OPERAND0_RGB_ARB 0x8590
212 #define GL_OPERAND1_RGB_ARB 0x8591
213 #define GL_OPERAND2_RGB_ARB 0x8592
214 #define GL_OPERAND0_ALPHA_ARB 0x8598
215 #define GL_OPERAND1_ALPHA_ARB 0x8599
216 #define GL_OPERAND2_ALPHA_ARB 0x859A
220 * GL_ARB_texture_env_dot3
223 #ifndef GL_ARB_texture_env_dot3
224 #define GL_ARB_texture_env_dot3 1
225 #define GL_DOT3_RGB_ARB 0x86AE
226 #define GL_DOT3_RGBA_ARB 0x86AF
229 #if defined(__cplusplus)
233 #endif // !__SG_EXTENSIONS_HXX