simgear/screen/extensions.hxx

   1 /*
   2  *
   3  * Copyright (c) 2001 César Blecua Udías    All Rights Reserved.
   4  *
   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:
  11  *
  12  * The above copyright notice and this permission notice shall be included
  13  * in all copies or substantial portions of the Software.
  14  *
  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
  21  * SOFTWARE.
  22  *
  23  */
  24 #ifndef __SG_EXTENSIONS_HXX
  25 #define __SG_EXTENSIONS_HXX 1
  26
  27 #if defined(__CYGWIN__) && !defined(WIN32) /* && !defined(USING_X) */
  28 #define WIN32
  29 #endif
  30
  31 #if defined(WIN32)  /* MINGW and MSC predefine WIN32 */
  32 # include <windows.h>
  33 #endif
  34
  35 #include <simgear/compiler.h>
  36
  37 #include <osg/GL>
  38
  39 #if defined (WIN32)
  40 #  include <GL/wgl.h>
  41 #elif !defined(__APPLE__)
  42 #  include <GL/glx.h>
  43 #endif
  44
  45 #if defined(__cplusplus)
  46 extern "C" {
  47 #endif
  48
  49 #ifndef APIENTRY
  50 #define APIENTRY
  51 #endif
  52
  53 bool SGSearchExtensionsString(const char *extString, const char *extName);
  54 bool SGIsOpenGLExtensionSupported(const char *extName);
  55
  56 #ifdef __APPLE__
  57   // don't use an inline function for symbol lookup, since it is too big
  58   void* macosxGetGLProcAddress(const char *func);
  59
  60 #elif !defined( WIN32 )
  61
  62   void *SGGetGLProcAddress(const char *func);
  63
  64 #endif
  65
  66 inline void (*SGLookupFunction(const char *func))()
  67 {
  68 #if defined( WIN32 )
  69     return (void (*)()) wglGetProcAddress(func);
  70
  71 #elif defined( __APPLE__ )
  72     return (void (*)()) macosxGetGLProcAddress(func);
  73
  74 #else // UNIX, default
  75     return (void (*)()) SGGetGLProcAddress(func);
  76 #endif
  77 }
  78
  79 /*
  80  * OpenGL 1.2 and 1.3 enumerants
  81  */
  82
  83 #ifndef GL_VERSION_1_2
  84 #define GL_CLAMP_TO_EDGE                                        0x812F
  85 #define GL_TEXTURE_WRAP_R                                       0x8072
  86 #define GL_BLEND_EQUATION                                       0x8009
  87 #define GL_MIN                                                  0x8007
  88 #define GL_MAX                                                  0x8008
  89 #define GL_FUNC_ADD                                             0x8006
  90 #define GL_FUNC_SUBTRACT                                        0x800A
  91 #define GL_FUNC_REVERSE_SUBTRACT                                0x800B
  92 #define GL_BLEND_COLOR                                          0x8005
  93 #define GL_CONSTANT_COLOR                                       0x8001
  94 #define GL_ONE_MINUS_CONSTANT_COLOR                             0x8002
  95 #define GL_CONSTANT_ALPHA                                       0x8003
  96 #define GL_ONE_MINUS_CONSTANT_ALPHA                             0x8004
  97 #endif
  98
  99 typedef void (APIENTRY * glBlendEquationProc) (GLenum mode );
 100 typedef void (APIENTRY * glBlendColorProc) (GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha );
 101
 102
 103 /* OpenGL extension declarations */
 104
 105 /*
 106  * glPointParameterf and glPointParameterfv
 107  */
 108 #ifndef GL_EXT_point_parameters
 109 #define GL_EXT_point_parameters 1
 110 #define GL_POINT_SIZE_MIN_EXT                                   0x8126
 111 #define GL_DISTANCE_ATTENUATION_EXT                             0x8129
 112 #endif
 113
 114 #ifndef GL_ARB_point_parameters
 115 #define GL_ARB_point_parameters 1
 116 #define GL_POINT_SIZE_MIN_ARB                                   0x8126
 117 #define GL_DISTANCE_ATTENUATION_ARB                             0x8129
 118 #endif
 119
 120 typedef void (APIENTRY * glPointParameterfProc)(GLenum pname, GLfloat param);
 121 typedef void (APIENTRY * glPointParameterfvProc)(GLenum pname, const GLfloat *params);
 122
 123 /*
 124  * glActiveTextureARB
 125  */
 126
 127 #ifndef GL_ARB_multitexture
 128 #define GL_ARB_multitexture 1
 129 #define GL_TEXTURE0_ARB                                         0x84C0
 130 #define GL_TEXTURE1_ARB                                         0x84C1
 131 #define GL_TEXTURE2_ARB                                         0x84C2
 132 #define GL_TEXTURE3_ARB                                         0x84C3
 133 #define GL_TEXTURE4_ARB                                         0x84C4
 134 #define GL_TEXTURE5_ARB                                         0x84C5
 135 #define GL_TEXTURE6_ARB                                         0x84C6
 136 #define GL_TEXTURE7_ARB                                         0x84C7
 137 #define GL_TEXTURE8_ARB                                         0x84C8
 138 #define GL_TEXTURE9_ARB                                         0x84C9
 139 #define GL_TEXTURE10_ARB                                        0x84CA
 140 #define GL_TEXTURE11_ARB                                        0x84CB
 141 #define GL_TEXTURE12_ARB                                        0x84CC
 142 #define GL_TEXTURE13_ARB                                        0x84CD
 143 #define GL_TEXTURE14_ARB                                        0x84CE
 144 #define GL_TEXTURE15_ARB                                        0x84CF
 145 #define GL_TEXTURE16_ARB                                        0x84D0
 146 #define GL_TEXTURE17_ARB                                        0x84D1
 147 #define GL_TEXTURE18_ARB                                        0x84D2
 148 #define GL_TEXTURE19_ARB                                        0x84D3
 149 #define GL_TEXTURE20_ARB                                        0x84D4
 150 #define GL_TEXTURE21_ARB                                        0x84D5
 151 #define GL_TEXTURE22_ARB                                        0x84D6
 152 #define GL_TEXTURE23_ARB                                        0x84D7
 153 #define GL_TEXTURE24_ARB                                        0x84D8
 154 #define GL_TEXTURE25_ARB                                        0x84D9
 155 #define GL_TEXTURE26_ARB                                        0x84DA
 156 #define GL_TEXTURE27_ARB                                        0x84DB
 157 #define GL_TEXTURE28_ARB                                        0x84DC
 158 #define GL_TEXTURE29_ARB                                        0x84DD
 159 #define GL_TEXTURE30_ARB                                        0x84DE
 160 #define GL_TEXTURE31_ARB                                        0x84DF
 161 #define GL_ACTIVE_TEXTURE_ARB                                   0x84E0
 162 #define GL_CLIENT_ACTIVE_TEXTURE_ARB                            0x84E1
 163 #define GL_MAX_TEXTURE_UNITS_ARB                                0x84E2
 164 #endif
 165
 166 typedef void (APIENTRY * glActiveTextureProc)(GLenum texture);
 167 typedef void (APIENTRY * glClientActiveTextureProc)(GLenum texture);
 168
 169 /*
 170  * GL_EXT_separate_specular_color
 171  */
 172
 173 #ifndef GL_LIGHT_MODEL_COLOR_CONTROL
 174 #define GL_LIGHT_MODEL_COLOR_CONTROL                            0x81F8
 175 #define GL_SINGLE_COLOR                                         0x81F9
 176 #define GL_SEPARATE_SPECULAR_COLOR                              0x81FA
 177 #endif
 178
 179 /*
 180  * GL_ARB_texture_cube_map
 181  */
 182
 183 #ifndef GL_ARB_texture_cube_map
 184 #define GL_ARB_texture_cube_map 1
 185 #define GL_NORMAL_MAP_ARB                                       0x8511
 186 #define GL_REFLECTION_MAP_ARB                                   0x8512
 187 #define GL_TEXTURE_CUBE_MAP_ARB                                 0x8513
 188 #define GL_TEXTURE_BINDING_CUBE_MAP_ARB                         0x8514
 189 #define GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB                      0x8515
 190 #define GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB                      0x8516
 191 #define GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB                      0x8517
 192 #define GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB                      0x8518
 193 #define GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB                      0x8519
 194 #define GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB                      0x851A
 195 #define GL_PROXY_TEXTURE_CUBE_MAP_ARB                           0x851B
 196 #define GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB                        0x851C
 197 #endif
 198
 199 /*
 200  * GL_ARB_texture_env_combine
 201  */
 202
 203 #ifndef GL_ARB_texture_env_combine
 204 #define GL_ARB_texture_env_combine 1
 205 #define GL_COMBINE_ARB                                          0x8570
 206 #define GL_COMBINE_RGB_ARB                                      0x8571
 207 #define GL_COMBINE_ALPHA_ARB                                    0x8572
 208 #define GL_RGB_SCALE_ARB                                        0x8573
 209 #define GL_ADD_SIGNED_ARB                                       0x8574
 210 #define GL_INTERPOLATE_ARB                                      0x8575
 211 #define GL_SUBTRACT_ARB                       0x84E7
 212 #define GL_CONSTANT_ARB                                         0x8576
 213 #define GL_PRIMARY_COLOR_ARB                                    0x8577
 214 #define GL_PREVIOUS_ARB                                         0x8578
 215 #define GL_SOURCE0_RGB_ARB                                      0x8580
 216 #define GL_SOURCE1_RGB_ARB                                      0x8581
 217 #define GL_SOURCE2_RGB_ARB                                      0x8582
 218 #define GL_SOURCE0_ALPHA_ARB                                    0x8588
 219 #define GL_SOURCE1_ALPHA_ARB                                    0x8589
 220 #define GL_SOURCE2_ALPHA_ARB                                    0x858A
 221 #define GL_OPERAND0_RGB_ARB                                     0x8590
 222 #define GL_OPERAND1_RGB_ARB                                     0x8591
 223 #define GL_OPERAND2_RGB_ARB                                     0x8592
 224 #define GL_OPERAND0_ALPHA_ARB                                   0x8598
 225 #define GL_OPERAND1_ALPHA_ARB                                   0x8599
 226 #define GL_OPERAND2_ALPHA_ARB                                   0x859A
 227 #endif
 228
 229 /*
 230  * GL_ARB_texture_env_dot3
 231  */
 232
 233 #ifndef GL_ARB_texture_env_dot3
 234 #define GL_ARB_texture_env_dot3 1
 235 #define GL_DOT3_RGB_ARB                                         0x86AE
 236 #define GL_DOT3_RGBA_ARB                                        0x86AF
 237 #endif
 238
 239 /*
 240  * ARB_depth_texture
 241  */
 242 #ifndef GL_ARB_depth_texture
 243 #define GL_ARB_depth_texture 1
 244 #define GL_DEPTH_COMPONENT16_ARB                                0x81A5
 245 #define GL_DEPTH_COMPONENT24_ARB                                0x81A6
 246 #define GL_DEPTH_COMPONENT32_ARB                                0x81A7
 247 #define GL_TEXTURE_DEPTH_SIZE_ARB                               0x884A
 248 #define GL_DEPTH_TEXTURE_MODE_ARB                               0x884B
 249 #endif
 250
 251 /*
 252  * ARB_multisample
 253  */
 254 #ifndef GL_ARB_multisample
 255 #define GL_ARB_multisample 1
 256 #define GL_MULTISAMPLE_ARB                                      0x809D
 257 #define GL_SAMPLE_ALPHA_TO_COVERAGE_ARB                         0x809E
 258 #define GL_SAMPLE_ALPHA_TO_ONE_ARB                              0x809F
 259 #define GL_SAMPLE_COVERAGE_ARB                                  0x80A0
 260 #define GL_SAMPLE_BUFFERS_ARB                                   0x80A8
 261 #define GL_SAMPLES_ARB                                          0x80A9
 262 #define GL_SAMPLE_COVERAGE_VALUE_ARB                            0x80AA
 263 #define GL_SAMPLE_COVERAGE_INVERT_ARB                           0x80AB
 264 #define GL_MULTISAMPLE_BIT_ARB                                  0x20000000
 265 #define GL_DOUBLEBUFFER                                         0x0C32
 266 #define GL_AUX_BUFFERS                                          0x0C00
 267 #define WGL_SAMPLE_BUFFERS_ARB                                  0x2041
 268 #define WGL_SAMPLES_ARB                                         0x2042
 269 #endif
 270
 271 #ifndef GL_SGIS_generate_mipmap
 272 #define GL_SGIS_generate_mipmap 1
 273 #define GL_GENERATE_MIPMAP_SGIS                                 0x8191
 274 #define GL_GENERATE_MIPMAP_HINT_SGIS                            0x8192
 275 #endif
 276
 277 /* WGL spcific OpenGL extenstions */
 278 #ifdef WIN32
 279
 280 /*
 281  * WGL_ARB_extensions_string
 282  */
 283 #ifndef WGL_ARB_extensions_string
 284 #define WGL_ARB_extensions_string 1
 285 typedef const char * (APIENTRY * wglGetExtensionsStringARBProc) (HDC hDC);
 286 #endif
 287
 288 /*
 289  * WGL_ARB_pbuffer
 290  */
 291 #ifndef WGL_ARB_pbuffer
 292 #define WGL_ARB_pbuffer 1
 293 #define WGL_DRAW_TO_PBUFFER_ARB                                 0x202D
 294 #define WGL_MAX_PBUFFER_PIXELS_ARB                              0x202E
 295 #define WGL_MAX_PBUFFER_WIDTH_ARB                               0x202F
 296 #define WGL_MAX_PBUFFER_HEIGHT_ARB                              0x2030
 297 #define WGL_PBUFFER_LARGEST_ARB                                 0x2033
 298 #define WGL_PBUFFER_WIDTH_ARB                                   0x2034
 299 #define WGL_PBUFFER_HEIGHT_ARB                                  0x2035
 300 #define WGL_PBUFFER_LOST_ARB                                    0x2036
 301 DECLARE_HANDLE(HPBUFFERARB);
 302 typedef HPBUFFERARB (APIENTRY * wglCreatePbufferARBProc) (HDC hDC, int iPixelFormat, int iWidth, int iHeight, const int *piAttribList);
 303 typedef HDC (APIENTRY * wglGetPbufferDCARBProc) (HPBUFFERARB hPbuffer);
 304 typedef int (APIENTRY * wglReleasePbufferDCARBProc) (HPBUFFERARB hPbuffer, HDC hDC);
 305 typedef BOOL (APIENTRY * wglDestroyPbufferARBProc) (HPBUFFERARB hPbuffer);
 306 typedef BOOL (APIENTRY * wglQueryPbufferARBProc) (HPBUFFERARB hPbuffer, int iAttribute, int *piValue);
 307 #endif
 308
 309
 310 /*
 311  * ARB_pixel_format
 312  */
 313 #ifndef WGL_ARB_pixel_format
 314 #define WGL_ARB_pixel_format 1
 315 #define WGL_NUMBER_PIXEL_FORMATS_ARB                            0x2000
 316 #define WGL_DRAW_TO_WINDOW_ARB                                  0x2001
 317 #define WGL_DRAW_TO_BITMAP_ARB                                  0x2002
 318 #define WGL_ACCELERATION_ARB                                    0x2003
 319 #define WGL_NEED_PALETTE_ARB                                    0x2004
 320 #define WGL_NEED_SYSTEM_PALETTE_ARB                             0x2005
 321 #define WGL_SWAP_LAYER_BUFFERS_ARB                              0x2006
 322 #define WGL_SWAP_METHOD_ARB                                     0x2007
 323 #define WGL_NUMBER_OVERLAYS_ARB                                 0x2008
 324 #define WGL_NUMBER_UNDERLAYS_ARB                                0x2009
 325 #define WGL_TRANSPARENT_ARB                                     0x200A
 326 #define WGL_SHARE_DEPTH_ARB                                     0x200C
 327 #define WGL_SHARE_STENCIL_ARB                                   0x200D
 328 #define WGL_SHARE_ACCUM_ARB                                     0x200E
 329 #define WGL_SUPPORT_GDI_ARB                                     0x200F
 330 #define WGL_SUPPORT_OPENGL_ARB                                  0x2010
 331 #define WGL_DOUBLE_BUFFER_ARB                                   0x2011
 332 #define WGL_STEREO_ARB                                          0x2012
 333 #define WGL_PIXEL_TYPE_ARB                                      0x2013
 334 #define WGL_COLOR_BITS_ARB                                      0x2014
 335 #define WGL_RED_BITS_ARB                                        0x2015
 336 #define WGL_RED_SHIFT_ARB                                       0x2016
 337 #define WGL_GREEN_BITS_ARB                                      0x2017
 338 #define WGL_GREEN_SHIFT_ARB                                     0x2018
 339 #define WGL_BLUE_BITS_ARB                                       0x2019
 340 #define WGL_BLUE_SHIFT_ARB                                      0x201A
 341 #define WGL_ALPHA_BITS_ARB                                      0x201B
 342 #define WGL_ALPHA_SHIFT_ARB                                     0x201C
 343 #define WGL_ACCUM_BITS_ARB                                      0x201D
 344 #define WGL_ACCUM_RED_BITS_ARB                                  0x201E
 345 #define WGL_ACCUM_GREEN_BITS_ARB                                0x201F
 346 #define WGL_ACCUM_BLUE_BITS_ARB                                 0x2020
 347 #define WGL_ACCUM_ALPHA_BITS_ARB                                0x2021
 348 #define WGL_DEPTH_BITS_ARB                                      0x2022
 349 #define WGL_STENCIL_BITS_ARB                                    0x2023
 350 #define WGL_AUX_BUFFERS_ARB                                     0x2024
 351 #define WGL_NO_ACCELERATION_ARB                                 0x2025
 352 #define WGL_GENERIC_ACCELERATION_ARB                            0x2026
 353 #define WGL_FULL_ACCELERATION_ARB                               0x2027
 354 #define WGL_SWAP_EXCHANGE_ARB                                   0x2028
 355 #define WGL_SWAP_COPY_ARB                                       0x2029
 356 #define WGL_SWAP_UNDEFINED_ARB                                  0x202A
 357 #define WGL_TYPE_RGBA_ARB                                       0x202B
 358 #define WGL_TYPE_COLORINDEX_ARB                                 0x202C
 359 #define WGL_TRANSPARENT_RED_VALUE_ARB                           0x2037
 360 #define WGL_TRANSPARENT_GREEN_VALUE_ARB                         0x2038
 361 #define WGL_TRANSPARENT_BLUE_VALUE_ARB                          0x2039
 362 #define WGL_TRANSPARENT_ALPHA_VALUE_ARB                         0x203A
 363 #define WGL_TRANSPARENT_INDEX_VALUE_ARB                         0x203B
 364 typedef BOOL (APIENTRY * wglGetPixelFormatAttribivARBProc) (HDC hdc, int iPixelFormat, int iLayerPlane, UINT nAttributes, const int *piAttributes, int *piValues);
 365 typedef BOOL (APIENTRY * wglGetPixelFormatAttribfvARBProc) (HDC hdc, int iPixelFormat, int iLayerPlane, UINT nAttributes, const int *piAttributes, FLOAT *pfValues);
 366 typedef BOOL (APIENTRY * wglChoosePixelFormatARBProc) (HDC hdc, const int *piAttribIList, const FLOAT *pfAttribFList, UINT nMaxFormats, int *piFormats, UINT *nNumFormats);
 367 #endif
 368
 369 /*
 370  * ARB_render_texture
 371  */
 372 #ifndef WGL_ARB_render_texture
 373 #define WGL_ARB_render_texture 1
 374
 375 #define WGL_BIND_TO_TEXTURE_RGB_ARB                             0x2070
 376 #define WGL_BIND_TO_TEXTURE_RGBA_ARB                            0x2071
 377 #define WGL_TEXTURE_FORMAT_ARB                                  0x2072
 378 #define WGL_TEXTURE_TARGET_ARB                                  0x2073
 379 #define WGL_MIPMAP_TEXTURE_ARB                                  0x2074
 380 #define WGL_TEXTURE_RGB_ARB                                     0x2075
 381 #define WGL_TEXTURE_RGBA_ARB                                    0x2076
 382 #define WGL_NO_TEXTURE_ARB                                      0x2077
 383 #define WGL_TEXTURE_CUBE_MAP_ARB                                0x2078
 384 #define WGL_TEXTURE_1D_ARB                                      0x2079
 385 #define WGL_TEXTURE_2D_ARB                                      0x207A
 386 #define WGL_NO_TEXTURE_ARB                                      0x2077
 387 #define WGL_MIPMAP_LEVEL_ARB                                    0x207B
 388 #define WGL_CUBE_MAP_FACE_ARB                                   0x207C
 389 #define WGL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB                     0x207D
 390 #define WGL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB                     0x207E
 391 #define WGL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB                     0x207F
 392 #define WGL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB                     0x2080
 393 #define WGL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB                     0x2081
 394 #define WGL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB                     0x2082
 395 #define WGL_FRONT_LEFT_ARB                                      0x2083
 396 #define WGL_FRONT_RIGHT_ARB                                     0x2084
 397 #define WGL_BACK_LEFT_ARB                                       0x2085
 398 #define WGL_BACK_RIGHT_ARB                                      0x2086
 399 #define WGL_AUX0_ARB                                            0x2087
 400 #define WGL_AUX1_ARB                                            0x2088
 401 #define WGL_AUX2_ARB                                            0x2089
 402 #define WGL_AUX3_ARB                                            0x208A
 403 #define WGL_AUX4_ARB                                            0x208B
 404 #define WGL_AUX5_ARB                                            0x208C
 405 #define WGL_AUX6_ARB                                            0x208D
 406 #define WGL_AUX7_ARB                                            0x208E
 407 #define WGL_AUX8_ARB                                            0x208F
 408 #define WGL_AUX9_ARB                                            0x2090
 409 typedef BOOL (APIENTRY * wglBindTexImageARBProc) (HPBUFFERARB hPbuffer, int iBuffer);
 410 typedef BOOL (APIENTRY * wglReleaseTexImageARBProc) (HPBUFFERARB hPbuffer, int iBuffer);
 411 typedef BOOL (APIENTRY * wglSetPbufferAttribARBProc) (HPBUFFERARB hPbuffer, const int *piAttribList);
 412 #endif
 413
 414 #elif !defined(__APPLE__) /* !WIN32 */
 415
 416 /* GLX pcific OpenGL extenstions */
 417 #include <GL/glx.h>
 418
 419 #ifndef GLX_ARB_multisample
 420 #define GLX_ARB_multisample1
 421 #define GLX_SAMPLE_BUFFERS_ARB                                  100001
 422 #define GLX_SAMPLES_ARB                                         100000
 423 #endif
 424
 425 #ifndef GLX_SGIX_pbuffer
 426 #define GLX_SGIX_pbuffer 1
 427 #define GLX_DOUBLEBUFFER                                        5
 428 #define GLX_AUX_BUFFERS                                         0x00000010
 429 #endif
 430
 431 #ifndef GLXPbuffer
 432 # ifdef GLXPbufferSGIX
 433 #  define GLXPbuffer GLXPbufferSGIX
 434 # endif
 435 #endif
 436 #ifndef GLXFBConfig
 437 # ifdef GLXFBConfigSGIX
 438 #  define GLXFBConfig GLXFBConfigSGIX
 439 # endif
 440 #endif
 441
 442 typedef GLXFBConfig *(*glXChooseFBConfigProc) (Display *dpy, int screen, int *attribList, int *nitems);
 443 typedef GLXPbuffer (*glXCreateGLXPbufferProc) (Display *dpy, GLXFBConfig config, unsigned int width, unsigned int height, int *attrib_list);
 444 typedef GLXPbuffer (*glXCreatePbufferProc) (Display *dpy, GLXFBConfig config, int *attrib_list);
 445 typedef XVisualInfo *(*glXGetVisualFromFBConfigProc) (Display *dpy, GLXFBConfig config);
 446 typedef GLXContext (*glXCreateContextWithConfigProc) (Display *dpy,  GLXFBConfig config, int render_type, GLXContext share_list, Bool direct);
 447 typedef GLXContext (*glXCreateContextProc) (Display *dpy, XVisualInfo *vis, GLXContext shareList, Bool direct);
 448 typedef void (*glXDestroyPbufferProc) (Display *dpy, GLXPbuffer pbuf);
 449 typedef int (*glXQueryGLXPbufferSGIXProc) (Display *, GLXPbuffer, int, unsigned int *);
 450 typedef void (*glXQueryDrawableProc) (Display *, GLXDrawable, int, unsigned int *);
 451 #endif /* WIN32 */
 452
 453
 454 /* NVIDIA specific extension */
 455
 456 /*
 457  * NV_texture_rectangle
 458  */
 459
 460 #ifndef GL_NV_texture_rectangle
 461 #define GL_NV_texture_rectangle 1
 462 #define GL_TEXTURE_RECTANGLE_NV                                 0x84F5
 463 #define GL_TEXTURE_BINDING_RECTANGLE_NV                         0x84F6
 464 #define GL_PROXY_TEXTURE_RECTANGLE_NV                           0x84F7
 465 #define GL_MAX_RECTANGLE_TEXTURE_SIZE_NV                        0x84F8
 466 #endif
 467
 468 /*
 469  * NV_texture_rectangle
 470  */
 471
 472 #ifndef GL_EXT_texture_rectangle
 473 #define GL_EXT_texture_rectangle 1
 474 #define GL_TEXTURE_RECTANGLE_EXT                                0x84F5
 475 #define GL_TEXTURE_BINDING_RECTANGLE_EXT                        0x84F6
 476 #define GL_PROXY_TEXTURE_RECTANGLE_EXT                          0x84F7
 477 #define GL_MAX_RECTANGLE_TEXTURE_SIZE_EXT                       0x84F8
 478 #endif
 479
 480 /*
 481  * WGL_NV_texture_rectangle
 482  */
 483
 484 #ifndef WGL_NV_texture_rectangle
 485 #define WGL_NV_texture_rectangle 1
 486 #define WGL_BIND_TO_TEXTURE_RECTANGLE_RGB_NV                    0x20A0
 487 #define WGL_BIND_TO_TEXTURE_RECTANGLE_RGBA_NV                   0x20A1
 488 #define WGL_TEXTURE_RECTANGLE_NV                                0x20A2
 489 #endif
 490
 491 /*
 492  * NV_render_depth_texture
 493  */
 494
 495 #ifndef WGL_NV_render_depth_texture
 496 #define WGL_NV_render_depth_texture 1
 497 #define WGL_NO_TEXTURE_ARB                                      0x2077
 498 #define WGL_BIND_TO_TEXTURE_DEPTH_NV                            0x20A3
 499 #define WGL_BIND_TO_TEXTURE_RECTANGLE_DEPTH_NV                  0x20A4
 500 #define WGL_DEPTH_TEXTURE_FORMAT_NV                             0x20A5
 501 #define WGL_TEXTURE_DEPTH_COMPONENT_NV                          0x20A6
 502 #define WGL_DEPTH_COMPONENT_NV                                  0x20A7
 503 #endif
 504
 505 /*
 506  * NV_float_buffer
 507  */
 508 #ifndef GL_NV_float_buffer
 509 #define GL_NV_float_buffer 1
 510 #define GL_FLOAT_R_NV                                           0x8880
 511 #define GL_FLOAT_RG_NV                                          0x8881
 512 #define GL_FLOAT_RGB_NV                                         0x8882
 513 #define GL_FLOAT_RGBA_NV                                        0x8883
 514 #define GL_FLOAT_R16_NV                                         0x8884
 515 #define GL_FLOAT_R32_NV                                         0x8885
 516 #define GL_FLOAT_RG16_NV                                        0x8886
 517 #define GL_FLOAT_RG32_NV                                        0x8887
 518 #define GL_FLOAT_RGB16_NV                                       0x8888
 519 #define GL_FLOAT_RGB32_NV                                       0x8889
 520 #define GL_FLOAT_RGBA16_NV                                      0x888A
 521 #define GL_FLOAT_RGBA32_NV                                      0x888B
 522 #define GL_TEXTURE_FLOAT_COMPONENTS_NV                          0x888C
 523 #define GL_FLOAT_CLEAR_COLOR_VALUE_NV                           0x888D
 524 #define GL_FLOAT_RGBA_MODE_NV                                   0x888E
 525 #endif
 526 #ifndef GLX_NV_float_buffer
 527 #define GLX_NV_float_buffer 1
 528 #define GLX_FLOAT_COMPONENTS_NV                                 0x20B0
 529 #define GLX_BIND_TO_TEXTURE_RECTANGLE_FLOAT_R_NV                0x20B1
 530 #define GLX_BIND_TO_TEXTURE_RECTANGLE_FLOAT_RG_NV               0x20B2
 531 #define GLX_BIND_TO_TEXTURE_RECTANGLE_FLOAT_RGB_NV              0x20B3
 532 #define GLX_BIND_TO_TEXTURE_RECTANGLE_FLOAT_RGBA_NV             0x20B4
 533 #define GLX_TEXTURE_FLOAT_R_NV                                  0x20B5
 534 #define GLX_TEXTURE_FLOAT_RG_NV                                 0x20B6
 535 #define GLX_TEXTURE_FLOAT_RGB_NV                                0x20B7
 536 #define GLX_TEXTURE_FLOAT_RGBA_NV                               0x20B8
 537 #endif
 538 #ifndef WGL_NV_float_buffer
 539 #define WGL_NV_float_buffer 1
 540 #define WGL_FLOAT_COMPONENTS_NV                                 0x20B0
 541 #define WGL_BIND_TO_TEXTURE_RECTANGLE_FLOAT_R_NV                0x20B1
 542 #define WGL_BIND_TO_TEXTURE_RECTANGLE_FLOAT_RG_NV               0x20B2
 543 #define WGL_BIND_TO_TEXTURE_RECTANGLE_FLOAT_RGB_NV              0x20B3
 544 #define WGL_BIND_TO_TEXTURE_RECTANGLE_FLOAT_RGBA_NV             0x20B4
 545 #define WGL_TEXTURE_FLOAT_R_NV                                  0x20B5
 546 #define WGL_TEXTURE_FLOAT_RG_NV                                 0x20B6
 547 #define WGL_TEXTURE_FLOAT_RGB_NV                                0x20B7
 548 #define WGL_TEXTURE_FLOAT_RGBA_NV                               0x20B8
 549 #endif
 550
 551
 552 /* ATI specific extension */
 553
 554 /*
 555  * ATI_pixel_format_float
 556  */
 557 #ifndef WGL_ATI_pixel_format_float
 558 #define WGL_ATI_pixel_format_float 1
 559 #define WGL_TYPE_RGBA_FLOAT_ATI                                 0x21A0
 560 #define GL_RGBA_FLOAT_MODE_ATI                                  0x8820
 561 #define GL_COLOR_CLEAR_UNCLAMPED_VALUE_ATI                      0x8835
 562 #endif
 563
 564 /*
 565  * ATI_texture_float
 566  */
 567 #ifndef GL_ATI_texture_float
 568 #define GL_ATI_texture_float 1
 569 #define GL_RGBA_FLOAT32_ATI                                     0x8814
 570 #define GL_RGB_FLOAT32_ATI                                      0x8815
 571 #define GL_ALPHA_FLOAT32_ATI                                    0x8816
 572 #define GL_INTENSITY_FLOAT32_ATI                                0x8817
 573 #define GL_LUMINANCE_FLOAT32_ATI                                0x8818
 574 #define GL_LUMINANCE_ALPHA_FLOAT32_ATI                          0x8819
 575 #define GL_RGBA_FLOAT16_ATI                                     0x881A
 576 #define GL_RGB_FLOAT16_ATI                                      0x881B
 577 #define GL_ALPHA_FLOAT16_ATI                                    0x881C
 578 #define GL_INTENSITY_FLOAT16_ATI                                0x881D
 579 #define GL_LUMINANCE_FLOAT16_ATI                                0x881E
 580 #define GL_LUMINANCE_ALPHA_FLOAT16_ATI                          0x881F
 581 #endif
 582
 583 /*
 584  * ARB point sprite
 585  */
 586 #ifndef GL_ARB_point_sprite
 587 #define GL_ARB_point_sprite 1
 588 #define GL_POINT_SPRITE_ARB               0x8861
 589 #define GL_COORD_REPLACE_ARB              0x8862
 590 #endif
 591
 592 #ifndef GL_NV_point_sprite
 593 #define GL_NV_point_sprite 1
 594 #define GL_POINT_SPRITE_NV                0x8861
 595 #define GL_COORD_REPLACE_NV               0x8862
 596 #define GL_POINT_SPRITE_R_MODE_NV         0x8863
 597 #endif
 598
 599 #ifndef GL_VERSION_2_0
 600 #define GL_POINT_SPRITE                   0x8861
 601 #define GL_COORD_REPLACE                  0x8862
 602 #endif
 603
 604 /*
 605  * ARB_vertex_program
 606  */
 607 #ifndef GL_ARB_vertex_program
 608 #define GL_ARB_vertex_program 1
 609 #define GL_COLOR_SUM_ARB                  0x8458
 610 #define GL_VERTEX_PROGRAM_ARB             0x8620
 611 #define GL_VERTEX_ATTRIB_ARRAY_ENABLED_ARB 0x8622
 612 #define GL_VERTEX_ATTRIB_ARRAY_SIZE_ARB   0x8623
 613 #define GL_VERTEX_ATTRIB_ARRAY_STRIDE_ARB 0x8624
 614 #define GL_VERTEX_ATTRIB_ARRAY_TYPE_ARB   0x8625
 615 #define GL_CURRENT_VERTEX_ATTRIB_ARB      0x8626
 616 #define GL_PROGRAM_LENGTH_ARB             0x8627
 617 #define GL_PROGRAM_STRING_ARB             0x8628
 618 #define GL_MAX_PROGRAM_MATRIX_STACK_DEPTH_ARB 0x862E
 619 #define GL_MAX_PROGRAM_MATRICES_ARB       0x862F
 620 #define GL_CURRENT_MATRIX_STACK_DEPTH_ARB 0x8640
 621 #define GL_CURRENT_MATRIX_ARB             0x8641
 622 #define GL_VERTEX_PROGRAM_POINT_SIZE_ARB  0x8642
 623 #define GL_VERTEX_PROGRAM_TWO_SIDE_ARB    0x8643
 624 #define GL_VERTEX_ATTRIB_ARRAY_POINTER_ARB 0x8645
 625 #define GL_PROGRAM_ERROR_POSITION_ARB     0x864B
 626 #define GL_PROGRAM_BINDING_ARB            0x8677
 627 #define GL_MAX_VERTEX_ATTRIBS_ARB         0x8869
 628 #define GL_VERTEX_ATTRIB_ARRAY_NORMALIZED_ARB 0x886A
 629 #define GL_PROGRAM_ERROR_STRING_ARB       0x8874
 630 #define GL_PROGRAM_FORMAT_ASCII_ARB       0x8875
 631 #define GL_PROGRAM_FORMAT_ARB             0x8876
 632 #define GL_PROGRAM_INSTRUCTIONS_ARB       0x88A0
 633 #define GL_MAX_PROGRAM_INSTRUCTIONS_ARB   0x88A1
 634 #define GL_PROGRAM_NATIVE_INSTRUCTIONS_ARB 0x88A2
 635 #define GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB 0x88A3
 636 #define GL_PROGRAM_TEMPORARIES_ARB        0x88A4
 637 #define GL_MAX_PROGRAM_TEMPORARIES_ARB    0x88A5
 638 #define GL_PROGRAM_NATIVE_TEMPORARIES_ARB 0x88A6
 639 #define GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB 0x88A7
 640 #define GL_PROGRAM_PARAMETERS_ARB         0x88A8
 641 #define GL_MAX_PROGRAM_PARAMETERS_ARB     0x88A9
 642 #define GL_PROGRAM_NATIVE_PARAMETERS_ARB  0x88AA
 643 #define GL_MAX_PROGRAM_NATIVE_PARAMETERS_ARB 0x88AB
 644 #define GL_PROGRAM_ATTRIBS_ARB            0x88AC
 645 #define GL_MAX_PROGRAM_ATTRIBS_ARB        0x88AD
 646 #define GL_PROGRAM_NATIVE_ATTRIBS_ARB     0x88AE
 647 #define GL_MAX_PROGRAM_NATIVE_ATTRIBS_ARB 0x88AF
 648 #define GL_PROGRAM_ADDRESS_REGISTERS_ARB  0x88B0
 649 #define GL_MAX_PROGRAM_ADDRESS_REGISTERS_ARB 0x88B1
 650 #define GL_PROGRAM_NATIVE_ADDRESS_REGISTERS_ARB 0x88B2
 651 #define GL_MAX_PROGRAM_NATIVE_ADDRESS_REGISTERS_ARB 0x88B3
 652 #define GL_MAX_PROGRAM_LOCAL_PARAMETERS_ARB 0x88B4
 653 #define GL_MAX_PROGRAM_ENV_PARAMETERS_ARB 0x88B5
 654 #define GL_PROGRAM_UNDER_NATIVE_LIMITS_ARB 0x88B6
 655 #define GL_TRANSPOSE_CURRENT_MATRIX_ARB   0x88B7
 656 #define GL_MATRIX0_ARB                    0x88C0
 657 #define GL_MATRIX1_ARB                    0x88C1
 658 #define GL_MATRIX2_ARB                    0x88C2
 659 #define GL_MATRIX3_ARB                    0x88C3
 660 #define GL_MATRIX4_ARB                    0x88C4
 661 #define GL_MATRIX5_ARB                    0x88C5
 662 #define GL_MATRIX6_ARB                    0x88C6
 663 #define GL_MATRIX7_ARB                    0x88C7
 664 #define GL_MATRIX8_ARB                    0x88C8
 665 #define GL_MATRIX9_ARB                    0x88C9
 666 #define GL_MATRIX10_ARB                   0x88CA
 667 #define GL_MATRIX11_ARB                   0x88CB
 668 #define GL_MATRIX12_ARB                   0x88CC
 669 #define GL_MATRIX13_ARB                   0x88CD
 670 #define GL_MATRIX14_ARB                   0x88CE
 671 #define GL_MATRIX15_ARB                   0x88CF
 672 #define GL_MATRIX16_ARB                   0x88D0
 673 #define GL_MATRIX17_ARB                   0x88D1
 674 #define GL_MATRIX18_ARB                   0x88D2
 675 #define GL_MATRIX19_ARB                   0x88D3
 676 #define GL_MATRIX20_ARB                   0x88D4
 677 #define GL_MATRIX21_ARB                   0x88D5
 678 #define GL_MATRIX22_ARB                   0x88D6
 679 #define GL_MATRIX23_ARB                   0x88D7
 680 #define GL_MATRIX24_ARB                   0x88D8
 681 #define GL_MATRIX25_ARB                   0x88D9
 682 #define GL_MATRIX26_ARB                   0x88DA
 683 #define GL_MATRIX27_ARB                   0x88DB
 684 #define GL_MATRIX28_ARB                   0x88DC
 685 #define GL_MATRIX29_ARB                   0x88DD
 686 #define GL_MATRIX30_ARB                   0x88DE
 687 #define GL_MATRIX31_ARB                   0x88DF
 688 #endif
 689
 690 /*
 691  * ARB_fragment_program
 692  */
 693 #ifndef GL_ARB_fragment_program
 694 #define GL_ARB_fragment_program 1
 695 #define GL_FRAGMENT_PROGRAM_ARB           0x8804
 696 #define GL_PROGRAM_ALU_INSTRUCTIONS_ARB   0x8805
 697 #define GL_PROGRAM_TEX_INSTRUCTIONS_ARB   0x8806
 698 #define GL_PROGRAM_TEX_INDIRECTIONS_ARB   0x8807
 699 #define GL_PROGRAM_NATIVE_ALU_INSTRUCTIONS_ARB 0x8808
 700 #define GL_PROGRAM_NATIVE_TEX_INSTRUCTIONS_ARB 0x8809
 701 #define GL_PROGRAM_NATIVE_TEX_INDIRECTIONS_ARB 0x880A
 702 #define GL_MAX_PROGRAM_ALU_INSTRUCTIONS_ARB 0x880B
 703 #define GL_MAX_PROGRAM_TEX_INSTRUCTIONS_ARB 0x880C
 704 #define GL_MAX_PROGRAM_TEX_INDIRECTIONS_ARB 0x880D
 705 #define GL_MAX_PROGRAM_NATIVE_ALU_INSTRUCTIONS_ARB 0x880E
 706 #define GL_MAX_PROGRAM_NATIVE_TEX_INSTRUCTIONS_ARB 0x880F
 707 #define GL_MAX_PROGRAM_NATIVE_TEX_INDIRECTIONS_ARB 0x8810
 708 #define GL_MAX_TEXTURE_COORDS_ARB         0x8871
 709 #define GL_MAX_TEXTURE_IMAGE_UNITS_ARB    0x8872
 710 #endif
 711
 712 typedef void (APIENTRY * glVertexAttrib1dProc) (GLuint index, GLdouble x);
 713 typedef void (APIENTRY * glVertexAttrib1dvProc) (GLuint index, const GLdouble *v);
 714 typedef void (APIENTRY * glVertexAttrib1fProc) (GLuint index, GLfloat x);
 715 typedef void (APIENTRY * glVertexAttrib1fvProc) (GLuint index, const GLfloat *v);
 716 typedef void (APIENTRY * glVertexAttrib1sProc) (GLuint index, GLshort x);
 717 typedef void (APIENTRY * glVertexAttrib1svProc) (GLuint index, const GLshort *v);
 718 typedef void (APIENTRY * glVertexAttrib2dProc) (GLuint index, GLdouble x, GLdouble y);
 719 typedef void (APIENTRY * glVertexAttrib2dvProc) (GLuint index, const GLdouble *v);
 720 typedef void (APIENTRY * glVertexAttrib2fProc) (GLuint index, GLfloat x, GLfloat y);
 721 typedef void (APIENTRY * glVertexAttrib2fvProc) (GLuint index, const GLfloat *v);
 722 typedef void (APIENTRY * glVertexAttrib2sProc) (GLuint index, GLshort x, GLshort y);
 723 typedef void (APIENTRY * glVertexAttrib2svProc) (GLuint index, const GLshort *v);
 724 typedef void (APIENTRY * glVertexAttrib3dProc) (GLuint index, GLdouble x, GLdouble y, GLdouble z);
 725 typedef void (APIENTRY * glVertexAttrib3dvProc) (GLuint index, const GLdouble *v);
 726 typedef void (APIENTRY * glVertexAttrib3fProc) (GLuint index, GLfloat x, GLfloat y, GLfloat z);
 727 typedef void (APIENTRY * glVertexAttrib3fvProc) (GLuint index, const GLfloat *v);
 728 typedef void (APIENTRY * glVertexAttrib3sProc) (GLuint index, GLshort x, GLshort y, GLshort z);
 729 typedef void (APIENTRY * glVertexAttrib3svProc) (GLuint index, const GLshort *v);
 730 typedef void (APIENTRY * glVertexAttrib4NbvProc) (GLuint index, const GLbyte *v);
 731 typedef void (APIENTRY * glVertexAttrib4NivProc) (GLuint index, const GLint *v);
 732 typedef void (APIENTRY * glVertexAttrib4NsvProc) (GLuint index, const GLshort *v);
 733 typedef void (APIENTRY * glVertexAttrib4NubProc) (GLuint index, GLubyte x, GLubyte y, GLubyte z, GLubyte w);
 734 typedef void (APIENTRY * glVertexAttrib4NubvProc) (GLuint index, const GLubyte *v);
 735 typedef void (APIENTRY * glVertexAttrib4NuivProc) (GLuint index, const GLuint *v);
 736 typedef void (APIENTRY * glVertexAttrib4NusvProc) (GLuint index, const GLushort *v);
 737 typedef void (APIENTRY * glVertexAttrib4bvProc) (GLuint index, const GLbyte *v);
 738 typedef void (APIENTRY * glVertexAttrib4dProc) (GLuint index, GLdouble x, GLdouble y, GLdouble z, GLdouble w);
 739 typedef void (APIENTRY * glVertexAttrib4dvProc) (GLuint index, const GLdouble *v);
 740 typedef void (APIENTRY * glVertexAttrib4fProc) (GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w);
 741 typedef void (APIENTRY * glVertexAttrib4fvProc) (GLuint index, const GLfloat *v);
 742 typedef void (APIENTRY * glVertexAttrib4ivProc) (GLuint index, const GLint *v);
 743 typedef void (APIENTRY * glVertexAttrib4sProc) (GLuint index, GLshort x, GLshort y, GLshort z, GLshort w);
 744 typedef void (APIENTRY * glVertexAttrib4svProc) (GLuint index, const GLshort *v);
 745 typedef void (APIENTRY * glVertexAttrib4ubvProc) (GLuint index, const GLubyte *v);
 746 typedef void (APIENTRY * glVertexAttrib4uivProc) (GLuint index, const GLuint *v);
 747 typedef void (APIENTRY * glVertexAttrib4usvProc) (GLuint index, const GLushort *v);
 748 typedef void (APIENTRY * glVertexAttribPointerProc) (GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const GLvoid *pointer);
 749 typedef void (APIENTRY * glEnableVertexAttribArrayProc) (GLuint index);
 750 typedef void (APIENTRY * glDisableVertexAttribArrayProc) (GLuint index);
 751 typedef void (APIENTRY * glProgramStringProc) (GLenum target, GLenum format, GLsizei len, const GLvoid *string);
 752 typedef void (APIENTRY * glBindProgramProc) (GLenum target, GLuint program);
 753 typedef void (APIENTRY * glDeleteProgramsProc) (GLsizei n, const GLuint *programs);
 754 typedef void (APIENTRY * glGenProgramsProc) (GLsizei n, GLuint *programs);
 755 typedef void (APIENTRY * glProgramEnvParameter4dProc) (GLenum target, GLuint index, GLdouble x, GLdouble y, GLdouble z, GLdouble w);
 756 typedef void (APIENTRY * glProgramEnvParameter4dvProc) (GLenum target, GLuint index, const GLdouble *params);
 757 typedef void (APIENTRY * glProgramEnvParameter4fProc) (GLenum target, GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w);
 758 typedef void (APIENTRY * glProgramEnvParameter4fvProc) (GLenum target, GLuint index, const GLfloat *params);
 759 typedef void (APIENTRY * glProgramLocalParameter4dProc) (GLenum target, GLuint index, GLdouble x, GLdouble y, GLdouble z, GLdouble w);
 760 typedef void (APIENTRY * glProgramLocalParameter4dvProc) (GLenum target, GLuint index, const GLdouble *params);
 761 typedef void (APIENTRY * glProgramLocalParameter4fProc) (GLenum target, GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w);
 762 typedef void (APIENTRY * glProgramLocalParameter4fvProc) (GLenum target, GLuint index, const GLfloat *params);
 763 typedef void (APIENTRY * glGetProgramEnvParameterdvProc) (GLenum target, GLuint index, GLdouble *params);
 764 typedef void (APIENTRY * glGetProgramEnvParameterfvProc) (GLenum target, GLuint index, GLfloat *params);
 765 typedef void (APIENTRY * glGetProgramLocalParameterdvProc) (GLenum target, GLuint index, GLdouble *params);
 766 typedef void (APIENTRY * glGetProgramLocalParameterfvProc) (GLenum target, GLuint index, GLfloat *params);
 767 typedef void (APIENTRY * glGetProgramivProc) (GLenum target, GLenum pname, GLint *params);
 768 typedef void (APIENTRY * glGetProgramStringProc) (GLenum target, GLenum pname, GLvoid *string);
 769 typedef void (APIENTRY * glGetVertexAttribdvProc) (GLuint index, GLenum pname, GLdouble *params);
 770 typedef void (APIENTRY * glGetVertexAttribfvProc) (GLuint index, GLenum pname, GLfloat *params);
 771 typedef void (APIENTRY * glGetVertexAttribivProc) (GLuint index, GLenum pname, GLint *params);
 772 typedef void (APIENTRY * glGetVertexAttribPointervProc) (GLuint index, GLenum pname, GLvoid* *pointer);
 773 typedef GLboolean (APIENTRY * glIsProgramProc) (GLuint program);
 774
 775 /*
 776  * ARB_shader_objects
 777  */
 778 #ifndef GL_ARB_shader_objects
 779 #define GL_ARB_shader_objects 1
 780 /* GL types for handling shader object handles and program/shader text */
 781 typedef char GLcharARB;         /* native character */
 782 typedef unsigned int GLhandleARB;       /* shader object handle */
 783
 784 #define GL_PROGRAM_OBJECT_ARB             0x8B40
 785 #define GL_SHADER_OBJECT_ARB              0x8B48
 786 #define GL_OBJECT_TYPE_ARB                0x8B4E
 787 #define GL_OBJECT_SUBTYPE_ARB             0x8B4F
 788 #define GL_FLOAT_VEC2_ARB                 0x8B50
 789 #define GL_FLOAT_VEC3_ARB                 0x8B51
 790 #define GL_FLOAT_VEC4_ARB                 0x8B52
 791 #define GL_INT_VEC2_ARB                   0x8B53
 792 #define GL_INT_VEC3_ARB                   0x8B54
 793 #define GL_INT_VEC4_ARB                   0x8B55
 794 #define GL_BOOL_ARB                       0x8B56
 795 #define GL_BOOL_VEC2_ARB                  0x8B57
 796 #define GL_BOOL_VEC3_ARB                  0x8B58
 797 #define GL_BOOL_VEC4_ARB                  0x8B59
 798 #define GL_FLOAT_MAT2_ARB                 0x8B5A
 799 #define GL_FLOAT_MAT3_ARB                 0x8B5B
 800 #define GL_FLOAT_MAT4_ARB                 0x8B5C
 801 #define GL_SAMPLER_1D_ARB                 0x8B5D
 802 #define GL_SAMPLER_2D_ARB                 0x8B5E
 803 #define GL_SAMPLER_3D_ARB                 0x8B5F
 804 #define GL_SAMPLER_CUBE_ARB               0x8B60
 805 #define GL_SAMPLER_1D_SHADOW_ARB          0x8B61
 806 #define GL_SAMPLER_2D_SHADOW_ARB          0x8B62
 807 #define GL_SAMPLER_2D_RECT_ARB            0x8B63
 808 #define GL_SAMPLER_2D_RECT_SHADOW_ARB     0x8B64
 809 #define GL_OBJECT_DELETE_STATUS_ARB       0x8B80
 810 #define GL_OBJECT_COMPILE_STATUS_ARB      0x8B81
 811 #define GL_OBJECT_LINK_STATUS_ARB         0x8B82
 812 #define GL_OBJECT_VALIDATE_STATUS_ARB     0x8B83
 813 #define GL_OBJECT_INFO_LOG_LENGTH_ARB     0x8B84
 814 #define GL_OBJECT_ATTACHED_OBJECTS_ARB    0x8B85
 815 #define GL_OBJECT_ACTIVE_UNIFORMS_ARB     0x8B86
 816 #define GL_OBJECT_ACTIVE_UNIFORM_MAX_LENGTH_ARB 0x8B87
 817 #define GL_OBJECT_SHADER_SOURCE_LENGTH_ARB 0x8B88
 818 #endif
 819
 820 typedef void (APIENTRY * glDeleteObjectProc) (GLhandleARB obj);
 821 typedef GLhandleARB (APIENTRY * glGetHandleProc) (GLenum pname);
 822 typedef void (APIENTRY * glDetachObjectProc) (GLhandleARB containerObj, GLhandleARB attachedObj);
 823 typedef GLhandleARB (APIENTRY * glCreateShaderObjectProc) (GLenum shaderType);
 824 typedef void (APIENTRY * glShaderSourceProc) (GLhandleARB shaderObj, GLsizei count, const GLcharARB* *string, const GLint *length);
 825 typedef void (APIENTRY * glCompileShaderProc) (GLhandleARB shaderObj);
 826 typedef GLhandleARB (APIENTRY * glCreateProgramObjectProc) (void);
 827 typedef void (APIENTRY * glAttachObjectProc) (GLhandleARB containerObj, GLhandleARB obj);
 828 typedef void (APIENTRY * glLinkProgramProc) (GLhandleARB programObj);
 829 typedef void (APIENTRY * glUseProgramObjectProc) (GLhandleARB programObj);
 830 typedef void (APIENTRY * glValidateProgramProc) (GLhandleARB programObj);
 831 typedef void (APIENTRY * glUniform1fProc) (GLint location, GLfloat v0);
 832 typedef void (APIENTRY * glUniform2fProc) (GLint location, GLfloat v0, GLfloat v1);
 833 typedef void (APIENTRY * glUniform3fProc) (GLint location, GLfloat v0, GLfloat v1, GLfloat v2);
 834 typedef void (APIENTRY * glUniform4fProc) (GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3);
 835 typedef void (APIENTRY * glUniform1iProc) (GLint location, GLint v0);
 836 typedef void (APIENTRY * glUniform2iProc) (GLint location, GLint v0, GLint v1);
 837 typedef void (APIENTRY * glUniform3iProc) (GLint location, GLint v0, GLint v1, GLint v2);
 838 typedef void (APIENTRY * glUniform4iProc) (GLint location, GLint v0, GLint v1, GLint v2, GLint v3);
 839 typedef void (APIENTRY * glUniform1fvProc) (GLint location, GLsizei count, const GLfloat *value);
 840 typedef void (APIENTRY * glUniform2fvProc) (GLint location, GLsizei count, const GLfloat *value);
 841 typedef void (APIENTRY * glUniform3fvProc) (GLint location, GLsizei count, const GLfloat *value);
 842 typedef void (APIENTRY * glUniform4fvProc) (GLint location, GLsizei count, const GLfloat *value);
 843 typedef void (APIENTRY * glUniform1ivProc) (GLint location, GLsizei count, const GLint *value);
 844 typedef void (APIENTRY * glUniform2ivProc) (GLint location, GLsizei count, const GLint *value);
 845 typedef void (APIENTRY * glUniform3ivProc) (GLint location, GLsizei count, const GLint *value);
 846 typedef void (APIENTRY * glUniform4ivProc) (GLint location, GLsizei count, const GLint *value);
 847 typedef void (APIENTRY * glUniformMatrix2fvProc) (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
 848 typedef void (APIENTRY * glUniformMatrix3fvProc) (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
 849 typedef void (APIENTRY * glUniformMatrix4fvProc) (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
 850 typedef void (APIENTRY * glGetObjectParameterfvProc) (GLhandleARB obj, GLenum pname, GLfloat *params);
 851 typedef void (APIENTRY * glGetObjectParameterivProc) (GLhandleARB obj, GLenum pname, GLint *params);
 852 typedef void (APIENTRY * glGetInfoLogProc) (GLhandleARB obj, GLsizei maxLength, GLsizei *length, GLcharARB *infoLog);
 853 typedef void (APIENTRY * glGetAttachedObjectsProc) (GLhandleARB containerObj, GLsizei maxCount, GLsizei *count, GLhandleARB *obj);
 854 typedef GLint (APIENTRY * glGetUniformLocationProc) (GLhandleARB programObj, const GLcharARB *name);
 855 typedef void (APIENTRY * glGetActiveUniformProc) (GLhandleARB programObj, GLuint index, GLsizei maxLength, GLsizei *length, GLint *size, GLenum *type, GLcharARB *name);
 856 typedef void (APIENTRY * glGetUniformfvProc) (GLhandleARB programObj, GLint location, GLfloat *params);
 857 typedef void (APIENTRY * glGetUniformivProc) (GLhandleARB programObj, GLint location, GLint *params);
 858 typedef void (APIENTRY * glGetShaderSourceProc) (GLhandleARB obj, GLsizei maxLength, GLsizei *length, GLcharARB *source);
 859
 860 /*
 861  * ARB_vertex_shader
 862  */
 863 #ifndef GL_ARB_vertex_shader
 864 #define GL_ARB_vertex_shader 1
 865 #define GL_VERTEX_SHADER_ARB              0x8B31
 866 #define GL_MAX_VERTEX_UNIFORM_COMPONENTS_ARB 0x8B4A
 867 #define GL_MAX_VARYING_FLOATS_ARB         0x8B4B
 868 #define GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS_ARB 0x8B4C
 869 #define GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS_ARB 0x8B4D
 870 #define GL_OBJECT_ACTIVE_ATTRIBUTES_ARB   0x8B89
 871 #define GL_OBJECT_ACTIVE_ATTRIBUTE_MAX_LENGTH_ARB 0x8B8A
 872 #endif
 873
 874 typedef void (APIENTRY * glBindAttribLocationProc) (GLhandleARB programObj, GLuint index, const GLcharARB *name);
 875 typedef void (APIENTRY * glGetActiveAttribProc) (GLhandleARB programObj, GLuint index, GLsizei maxLength, GLsizei *length, GLint *size, GLenum *type, GLcharARB *name);
 876 typedef GLint (APIENTRY * glGetAttribLocationProc) (GLhandleARB programObj, const GLcharARB *name);
 877
 878 /*
 879  * ARB_fragment_shader
 880  */
 881 #ifndef GL_ARB_fragment_shader
 882 #define GL_ARB_fragment_shader1
 883 #define GL_FRAGMENT_SHADER_ARB            0x8B30
 884 #define GL_MAX_FRAGMENT_UNIFORM_COMPONENTS_ARB 0x8B49
 885 #define GL_FRAGMENT_SHADER_DERIVATIVE_HINT_ARB 0x8B8B
 886 #endif
 887
 888 /*
 889  * NV_fragment_program
 890  */
 891 #ifndef GL_NV_fragment_program
 892 #define GL_NV_fragment_program 1
 893 #define GL_MAX_FRAGMENT_PROGRAM_LOCAL_PARAMETERS_NV 0x8868
 894 #define GL_FRAGMENT_PROGRAM_NV            0x8870
 895 #define GL_MAX_TEXTURE_COORDS_NV          0x8871
 896 #define GL_MAX_TEXTURE_IMAGE_UNITS_NV     0x8872
 897 #define GL_FRAGMENT_PROGRAM_BINDING_NV    0x8873
 898 #define GL_PROGRAM_ERROR_STRING_NV        0x8874
 899 #endif
 900 #ifndef GL_NV_vertex_program
 901 #define GL_NV_vertex_program 1
 902 #define GL_VERTEX_PROGRAM_NV              0x8620
 903 #define GL_PROGRAM_ERROR_POSITION_NV      0x864B
 904 #endif
 905
 906 typedef void (APIENTRY * glBindProgramNVProc) (GLenum target, GLuint id);
 907 typedef void (APIENTRY * glDeleteProgramsNVProc) (GLsizei n, const GLuint *programs);
 908 typedef void (APIENTRY * glGenProgramsNVProc) (GLsizei n, GLuint *programs);
 909 typedef void (APIENTRY * glLoadProgramNVProc) (GLenum target, GLuint id, GLsizei len, const GLubyte *program);
 910 typedef void (APIENTRY * glProgramParameter4fvNVProc) (GLenum target, GLuint index, const GLfloat *v);
 911
 912 #if defined(__cplusplus)
 913 }
 914 #endif
 915
 916
 917 #endif // !__SG_EXTENSIONS_HXX
 918