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_VERSION_1_2
86 #define GL_CLAMP_TO_EDGE 0x812F
87 #define GL_TEXTURE_WRAP_R 0x8072
88 #define GL_BLEND_EQUATION 0x8009
91 #define GL_FUNC_ADD 0x8006
92 #define GL_FUNC_SUBTRACT 0x800A
93 #define GL_FUNC_REVERSE_SUBTRACT 0x800B
94 #define GL_BLEND_COLOR 0x8005
95 #define GL_CONSTANT_COLOR 0x8001
96 #define GL_ONE_MINUS_CONSTANT_COLOR 0x8002
97 #define GL_CONSTANT_ALPHA 0x8003
98 #define GL_ONE_MINUS_CONSTANT_ALPHA 0x8004
101 typedef void (APIENTRY * glBlendEquationProc) (GLenum mode );
102 typedef void (APIENTRY * glBlendColorProc) (GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha );
105 /* OpenGL extension declarations */
108 * glPointParameterf and glPointParameterfv
110 #ifndef GL_EXT_point_parameters
111 #define GL_EXT_point_parameters 1
112 #define GL_POINT_SIZE_MIN_EXT 0x8126
113 #define GL_DISTANCE_ATTENUATION_EXT 0x8129
116 #ifndef GL_ARB_point_parameters
117 #define GL_ARB_point_parameters 1
118 #define GL_POINT_SIZE_MIN_ARB 0x8126
119 #define GL_DISTANCE_ATTENUATION_ARB 0x8129
122 typedef void (APIENTRY * glPointParameterfProc)(GLenum pname, GLfloat param);
123 typedef void (APIENTRY * glPointParameterfvProc)(GLenum pname, const GLfloat *params);
129 #ifndef GL_ARB_multitexture
130 #define GL_ARB_multitexture 1
131 #define GL_TEXTURE0_ARB 0x84C0
132 #define GL_TEXTURE1_ARB 0x84C1
133 #define GL_TEXTURE2_ARB 0x84C2
134 #define GL_TEXTURE3_ARB 0x84C3
135 #define GL_TEXTURE4_ARB 0x84C4
136 #define GL_TEXTURE5_ARB 0x84C5
137 #define GL_TEXTURE6_ARB 0x84C6
138 #define GL_TEXTURE7_ARB 0x84C7
139 #define GL_TEXTURE8_ARB 0x84C8
140 #define GL_TEXTURE9_ARB 0x84C9
141 #define GL_TEXTURE10_ARB 0x84CA
142 #define GL_TEXTURE11_ARB 0x84CB
143 #define GL_TEXTURE12_ARB 0x84CC
144 #define GL_TEXTURE13_ARB 0x84CD
145 #define GL_TEXTURE14_ARB 0x84CE
146 #define GL_TEXTURE15_ARB 0x84CF
147 #define GL_TEXTURE16_ARB 0x84D0
148 #define GL_TEXTURE17_ARB 0x84D1
149 #define GL_TEXTURE18_ARB 0x84D2
150 #define GL_TEXTURE19_ARB 0x84D3
151 #define GL_TEXTURE20_ARB 0x84D4
152 #define GL_TEXTURE21_ARB 0x84D5
153 #define GL_TEXTURE22_ARB 0x84D6
154 #define GL_TEXTURE23_ARB 0x84D7
155 #define GL_TEXTURE24_ARB 0x84D8
156 #define GL_TEXTURE25_ARB 0x84D9
157 #define GL_TEXTURE26_ARB 0x84DA
158 #define GL_TEXTURE27_ARB 0x84DB
159 #define GL_TEXTURE28_ARB 0x84DC
160 #define GL_TEXTURE29_ARB 0x84DD
161 #define GL_TEXTURE30_ARB 0x84DE
162 #define GL_TEXTURE31_ARB 0x84DF
163 #define GL_ACTIVE_TEXTURE_ARB 0x84E0
164 #define GL_CLIENT_ACTIVE_TEXTURE_ARB 0x84E1
165 #define GL_MAX_TEXTURE_UNITS_ARB 0x84E2
168 typedef void (APIENTRY * glActiveTextureProc)(GLenum texture);
169 typedef void (APIENTRY * glClientActiveTextureProc)(GLenum texture);
172 * GL_EXT_separate_specular_color
175 #ifndef GL_LIGHT_MODEL_COLOR_CONTROL
176 #define GL_LIGHT_MODEL_COLOR_CONTROL 0x81F8
177 #define GL_SINGLE_COLOR 0x81F9
178 #define GL_SEPARATE_SPECULAR_COLOR 0x81FA
182 * GL_ARB_texture_cube_map
185 #ifndef GL_ARB_texture_cube_map
186 #define GL_ARB_texture_cube_map 1
187 #define GL_NORMAL_MAP_ARB 0x8511
188 #define GL_REFLECTION_MAP_ARB 0x8512
189 #define GL_TEXTURE_CUBE_MAP_ARB 0x8513
190 #define GL_TEXTURE_BINDING_CUBE_MAP_ARB 0x8514
191 #define GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB 0x8515
192 #define GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB 0x8516
193 #define GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB 0x8517
194 #define GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB 0x8518
195 #define GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB 0x8519
196 #define GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB 0x851A
197 #define GL_PROXY_TEXTURE_CUBE_MAP_ARB 0x851B
198 #define GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB 0x851C
202 * GL_ARB_texture_env_combine
205 #ifndef GL_ARB_texture_env_combine
206 #define GL_ARB_texture_env_combine 1
207 #define GL_COMBINE_ARB 0x8570
208 #define GL_COMBINE_RGB_ARB 0x8571
209 #define GL_COMBINE_ALPHA_ARB 0x8572
210 #define GL_RGB_SCALE_ARB 0x8573
211 #define GL_ADD_SIGNED_ARB 0x8574
212 #define GL_INTERPOLATE_ARB 0x8575
213 #define GL_CONSTANT_ARB 0x8576
214 #define GL_PRIMARY_COLOR_ARB 0x8577
215 #define GL_PREVIOUS_ARB 0x8578
216 #define GL_SOURCE0_RGB_ARB 0x8580
217 #define GL_SOURCE1_RGB_ARB 0x8581
218 #define GL_SOURCE2_RGB_ARB 0x8582
219 #define GL_SOURCE0_ALPHA_ARB 0x8588
220 #define GL_SOURCE1_ALPHA_ARB 0x8589
221 #define GL_SOURCE2_ALPHA_ARB 0x858A
222 #define GL_OPERAND0_RGB_ARB 0x8590
223 #define GL_OPERAND1_RGB_ARB 0x8591
224 #define GL_OPERAND2_RGB_ARB 0x8592
225 #define GL_OPERAND0_ALPHA_ARB 0x8598
226 #define GL_OPERAND1_ALPHA_ARB 0x8599
227 #define GL_OPERAND2_ALPHA_ARB 0x859A
231 * GL_ARB_texture_env_dot3
234 #ifndef GL_ARB_texture_env_dot3
235 #define GL_ARB_texture_env_dot3 1
236 #define GL_DOT3_RGB_ARB 0x86AE
237 #define GL_DOT3_RGBA_ARB 0x86AF
240 #if defined(__cplusplus)
244 #endif // !__SG_EXTENSIONS_HXX