simgear/scene/sky/clouds3d/extgl.c

   1 /* Copyright (c) 2001-2002 Lev Povalahev
   2
   3    levp@gmx.net
   4
   5    http://www.uni-karlsruhe.de/~uli2/
   6
   7 */
   8
   9 /* following extensions are supported:
  10
  11 GL_ARB_imaging
  12 GL_ARB_depth_texture
  13 GL_ARB_matrix_palette
  14 GL_ARB_multisample
  15 GL_ARB_multitexture
  16 GL_ARB_point_parameters
  17 GL_ARB_shadow
  18 GL_ARB_shadow_ambient
  19 GL_ARB_texture_compression
  20 GL_ARB_texture_env_add
  21 GL_ARB_texture_env_dot3
  22 GL_ARB_texture_env_combine
  23 GL_ARB_texture_env_crossbar
  24 GL_ARB_texture_border_clamp
  25 GL_ARB_texture_cube_map
  26 GL_ARB_texture_mirrored_repeat
  27 GL_ARB_transpose_matrix
  28 GL_ARB_vertex_blend
  29 GL_EXT_abgr
  30 GL_EXT_compiled_vertex_array
  31 GL_EXT_fog_coord
  32 GL_EXT_multi_draw_arrays
  33 GL_EXT_point_parameters
  34 GL_EXT_secondary_color
  35 GL_EXT_stencil_wrap
  36 GL_EXT_texture_filter_anisotropic
  37 GL_EXT_texture_lod_bias
  38 GL_EXT_vertex_shader
  39 GL_EXT_vertex_weighting
  40 GL_ATI_element_array
  41 GL_ATI_envmap_bumpmap
  42 GL_ATI_fragment_shader
  43 GL_ATI_pn_triangles
  44 GL_ATI_texture_mirror_once
  45 GL_ATI_vertex_array_object;
  46 GL_ATI_vertex_streams
  47 GL_ATIX_point_sprites
  48 GL_ATIX_texture_env_route
  49 GL_HP_occlusion_test
  50 GL_NV_blend_square
  51 GL_NV_copy_depth_to_color
  52 GL_NV_depth_clamp
  53 GL_NV_evaluators
  54 GL_NV_fence
  55 GL_NV_fog_distance
  56 GL_NV_light_max_exponent
  57 GL_NV_occlusion_query
  58 GL_NV_packed_depth_stencil
  59 GL_NV_point_sprite
  60 GL_NV_register_combiners
  61 GL_NV_register_combiners2
  62 GL_NV_texgen_reflection
  63 GL_NV_texture_env_combine4
  64 GL_NV_texture_rectangle
  65 GL_NV_texture_shader
  66 GL_NV_texture_shader2
  67 GL_NV_texture_shader3
  68 GL_NV_vertex_array_range
  69 GL_NV_vertex_array_range2
  70 GL_NV_vertex_program
  71 GL_NV_vertex_program1_1
  72 GL_SGIS_generate_mipmap
  73 GL_SGIX_shadow
  74 GL_SGIX_depth_texture
  75 WGL_ARB_buffer_region
  76 WGL_ARB_extensions_string
  77 WGL_ARB_pbuffer
  78 WGL_ARB_pixel_format
  79 WGL_ARB_render_texture
  80 WGL_EXT_extensions_string
  81
  82 */
  83
  84
  85 #include "extgl.h"
  86 #include <stdio.h>
  87
  88 /* function variables */
  89
  90 /*-------------------------------------*/
  91 /* WGL stuff */
  92 /*-------------------------------------*/
  93
  94 #ifdef WIN32
  95
  96 /* WGL_EXT_etxension_string */
  97
  98 wglGetExtensionsStringEXTPROC wglGetExtensionsStringEXT = NULL;
  99
 100 /* WGL_ARB_buffer_region */
 101
 102 wglCreateBufferRegionARBPROC wglCreateBufferRegionARB = NULL;
 103 wglDeleteBufferRegionARBPROC wglDeleteBufferRegionARB = NULL;
 104 wglSaveBufferRegionARBPROC wglSaveBufferRegionARB = NULL;
 105 wglRestoreBufferRegionARBPROC wglRestoreBufferRegionARB = NULL;
 106
 107 /* WGL_ARB_extension_string */
 108
 109 wglGetExtensionsStringARBPROC wglGetExtensionsStringARB = NULL;
 110
 111 /* WGL_ARB_pbuffer */
 112
 113 wglCreatePbufferARBPROC wglCreatePbufferARB = NULL;
 114 wglGetPbufferDCARBPROC wglGetPbufferDCARB = NULL;
 115 wglReleasePbufferDCARBPROC wglReleasePbufferDCARB = NULL;
 116 wglDestroyPbufferARBPROC wglDestroyPbufferARB = NULL;
 117 wglQueryPbufferARBPROC wglQueryPbufferARB = NULL;
 118
 119 /* WGL_ARB_pixel_format */
 120
 121 wglGetPixelFormatAttribivARBPROC wglGetPixelFormatAttribivARB = NULL;
 122 wglGetPixelFormatAttribfvARBPROC wglGetPixelFormatAttribfvARB = NULL;
 123 wglChoosePixelFormatARBPROC wglChoosePixelFormatARB = NULL;
 124
 125 /* WGL_ARB_render_texture */
 126
 127 wglBindTexImageARBPROC wglBindTexImageARB = NULL;
 128 wglReleaseTexImageARBPROC wglReleaseTexImageARB = NULL;
 129 wglSetPbufferAttribARBPROC wglSetPbufferAttribARB = NULL;
 130
 131 /* WGL_EXT_swap_control */
 132
 133 wglSwapIntervalEXTPROC wglSwapIntervalEXT = NULL;
 134 wglGetSwapIntervalEXTPROC wglGetSwapIntervalEXT = NULL;
 135
 136 /* WGL_ARB_make_current_read */
 137
 138 wglMakeContextCurrentARBPROC wglMakeContextCurrentARB = NULL;
 139 wglGetCurrentReadDCARBPROC wglGetCurrentReadDCARB = NULL;
 140
 141 /* VAR */
 142
 143 wglAllocateMemoryNVPROC wglAllocateMemoryNV = NULL;
 144 wglFreeMemoryNVPROC wglFreeMemoryNV = NULL;
 145
 146
 147
 148 #endif /* WIN32 */
 149
 150 /*-------------------------------------*/
 151 /*---WGL STUFF END---------------------*/
 152 /*-------------------------------------*/
 153
 154 glBlendColorPROC glBlendColor = NULL;
 155 glBlendEquationPROC glBlendEquation = NULL;
 156 glDrawRangeElementsPROC glDrawRangeElements = NULL;
 157 glColorTablePROC glColorTable = NULL;
 158 glColorTableParameterfvPROC glColorTableParameterfv = NULL;
 159 glColorTableParameterivPROC glColorTableParameteriv = NULL;
 160 glCopyColorTablePROC glCopyColorTable = NULL;
 161 glGetColorTablePROC glGetColorTable = NULL;
 162 glGetColorTableParameterfvPROC glGetColorTableParameterfv = NULL;
 163 glGetColorTableParameterivPROC glGetColorTableParameteriv = NULL;
 164 glColorSubTablePROC glColorSubTable = NULL;
 165 glCopyColorSubTablePROC glCopyColorSubTable = NULL;
 166 glConvolutionFilter1DPROC glConvolutionFilter1D = NULL;
 167 glConvolutionFilter2DPROC glConvolutionFilter2D = NULL;
 168 glConvolutionParameterfPROC glConvolutionParameterf = NULL;
 169 glConvolutionParameterfvPROC glConvolutionParameterfv = NULL;
 170 glConvolutionParameteriPROC glConvolutionParameteri = NULL;
 171 glConvolutionParameterivPROC glConvolutionParameteriv = NULL;
 172 glCopyConvolutionFilter1DPROC glCopyConvolutionFilter1D = NULL;
 173 glCopyConvolutionFilter2DPROC glCopyConvolutionFilter2D = NULL;
 174 glGetConvolutionFilterPROC glGetConvolutionFilter = NULL;
 175 glGetConvolutionParameterfvPROC glGetConvolutionParameterfv = NULL;
 176 glGetConvolutionParameterivPROC glGetConvolutionParameteriv = NULL;
 177 glGetSeparableFilterPROC glGetSeparableFilter = NULL;
 178 glSeparableFilter2DPROC glSeparableFilter2D = NULL;
 179 glGetHistogramPROC glGetHistogram = NULL;
 180 glGetHistogramParameterfvPROC glGetHistogramParameterfv = NULL;
 181 glGetHistogramParameterivPROC glGetHistogramParameteriv = NULL;
 182 glGetMinmaxPROC glGetMinmax = NULL;
 183 glGetMinmaxParameterfvPROC glGetMinmaxParameterfv = NULL;
 184 glGetMinmaxParameterivPROC glGetMinmaxParameteriv = NULL;
 185 glHistogramPROC glHistogram = NULL;
 186 glMinmaxPROC glMinmax = NULL;
 187 glResetHistogramPROC glResetHistogram = NULL;
 188 glResetMinmaxPROC glResetMinmax = NULL;
 189 glTexImage3DPROC glTexImage3D = NULL;
 190 glTexSubImage3DPROC glTexSubImage3D = NULL;
 191 glCopyTexSubImage3DPROC glCopyTexSubImage3D = NULL;
 192
 193 /* 1.3 */
 194
 195 glActiveTexturePROC glActiveTexture = NULL;
 196 glClientActiveTexturePROC glClientActiveTexture = NULL;
 197 glMultiTexCoord1dPROC glMultiTexCoord1d = NULL;
 198 glMultiTexCoord1dvPROC glMultiTexCoord1dv = NULL;
 199 glMultiTexCoord1fPROC glMultiTexCoord1f = NULL;
 200 glMultiTexCoord1fvPROC glMultiTexCoord1fv = NULL;
 201 glMultiTexCoord1iPROC glMultiTexCoord1i = NULL;
 202 glMultiTexCoord1ivPROC glMultiTexCoord1iv = NULL;
 203 glMultiTexCoord1sPROC glMultiTexCoord1s = NULL;
 204 glMultiTexCoord1svPROC glMultiTexCoord1sv = NULL;
 205 glMultiTexCoord2dPROC glMultiTexCoord2d = NULL;
 206 glMultiTexCoord2dvPROC glMultiTexCoord2dv = NULL;
 207 glMultiTexCoord2fPROC glMultiTexCoord2f = NULL;
 208 glMultiTexCoord2fvPROC glMultiTexCoord2fv = NULL;
 209 glMultiTexCoord2iPROC glMultiTexCoord2i = NULL;
 210 glMultiTexCoord2ivPROC glMultiTexCoord2iv = NULL;
 211 glMultiTexCoord2sPROC glMultiTexCoord2s = NULL;
 212 glMultiTexCoord2svPROC glMultiTexCoord2sv = NULL;
 213 glMultiTexCoord3dPROC glMultiTexCoord3d = NULL;
 214 glMultiTexCoord3dvPROC glMultiTexCoord3dv = NULL;
 215 glMultiTexCoord3fPROC glMultiTexCoord3f = NULL;
 216 glMultiTexCoord3fvPROC glMultiTexCoord3fv = NULL;
 217 glMultiTexCoord3iPROC glMultiTexCoord3i = NULL;
 218 glMultiTexCoord3ivPROC glMultiTexCoord3iv = NULL;
 219 glMultiTexCoord3sPROC glMultiTexCoord3s = NULL;
 220 glMultiTexCoord3svPROC glMultiTexCoord3sv = NULL;
 221 glMultiTexCoord4dPROC glMultiTexCoord4d = NULL;
 222 glMultiTexCoord4dvPROC glMultiTexCoord4dv = NULL;
 223 glMultiTexCoord4fPROC glMultiTexCoord4f = NULL;
 224 glMultiTexCoord4fvPROC glMultiTexCoord4fv = NULL;
 225 glMultiTexCoord4iPROC glMultiTexCoord4i = NULL;
 226 glMultiTexCoord4ivPROC glMultiTexCoord4iv = NULL;
 227 glMultiTexCoord4sPROC glMultiTexCoord4s = NULL;
 228 glMultiTexCoord4svPROC glMultiTexCoord4sv = NULL;
 229 glLoadTransposeMatrixfPROC glLoadTransposeMatrixf = NULL;
 230 glLoadTransposeMatrixdPROC glLoadTransposeMatrixd = NULL;
 231 glMultTransposeMatrixfPROC glMultTransposeMatrixf = NULL;
 232 glMultTransposeMatrixdPROC glMultTransposeMatrixd = NULL;
 233 glCompressedTexImage3DPROC glCompressedTexImage3D = NULL;
 234 glCompressedTexImage2DPROC glCompressedTexImage2D = NULL;
 235 glCompressedTexImage1DPROC glCompressedTexImage1D = NULL;
 236 glCompressedTexSubImage3DPROC glCompressedTexSubImage3D = NULL;
 237 glCompressedTexSubImage2DPROC glCompressedTexSubImage2D = NULL;
 238 glCompressedTexSubImage1DPROC glCompressedTexSubImage1D = NULL;
 239 glGetCompressedTexImagePROC glGetCompressedTexImage = NULL;
 240 glSampleCoveragePROC glSampleCoverage = NULL;
 241
 242 /* ARB_multitexture */
 243
 244 glActiveTexturePROC glActiveTextureARB = NULL;
 245 glClientActiveTexturePROC glClientActiveTextureARB = NULL;
 246 glMultiTexCoord1dPROC glMultiTexCoord1dARB = NULL;
 247 glMultiTexCoord1dvPROC glMultiTexCoord1dvARB = NULL;
 248 glMultiTexCoord1fPROC glMultiTexCoord1fARB = NULL;
 249 glMultiTexCoord1fvPROC glMultiTexCoord1fvARB = NULL;
 250 glMultiTexCoord1iPROC glMultiTexCoord1iARB = NULL;
 251 glMultiTexCoord1ivPROC glMultiTexCoord1ivARB = NULL;
 252 glMultiTexCoord1sPROC glMultiTexCoord1sARB = NULL;
 253 glMultiTexCoord1svPROC glMultiTexCoord1svARB = NULL;
 254 glMultiTexCoord2dPROC glMultiTexCoord2dARB = NULL;
 255 glMultiTexCoord2dvPROC glMultiTexCoord2dvARB = NULL;
 256 glMultiTexCoord2fPROC glMultiTexCoord2fARB = NULL;
 257 glMultiTexCoord2fvPROC glMultiTexCoord2fvARB = NULL;
 258 glMultiTexCoord2iPROC glMultiTexCoord2iARB = NULL;
 259 glMultiTexCoord2ivPROC glMultiTexCoord2ivARB = NULL;
 260 glMultiTexCoord2sPROC glMultiTexCoord2sARB = NULL;
 261 glMultiTexCoord2svPROC glMultiTexCoord2svARB = NULL;
 262 glMultiTexCoord3dPROC glMultiTexCoord3dARB = NULL;
 263 glMultiTexCoord3dvPROC glMultiTexCoord3dvARB = NULL;
 264 glMultiTexCoord3fPROC glMultiTexCoord3fARB = NULL;
 265 glMultiTexCoord3fvPROC glMultiTexCoord3fvARB = NULL;
 266 glMultiTexCoord3iPROC glMultiTexCoord3iARB = NULL;
 267 glMultiTexCoord3ivPROC glMultiTexCoord3ivARB = NULL;
 268 glMultiTexCoord3sPROC glMultiTexCoord3sARB = NULL;
 269 glMultiTexCoord3svPROC glMultiTexCoord3svARB = NULL;
 270 glMultiTexCoord4dPROC glMultiTexCoord4dARB = NULL;
 271 glMultiTexCoord4dvPROC glMultiTexCoord4dvARB = NULL;
 272 glMultiTexCoord4fPROC glMultiTexCoord4fARB = NULL;
 273 glMultiTexCoord4fvPROC glMultiTexCoord4fvARB = NULL;
 274 glMultiTexCoord4iPROC glMultiTexCoord4iARB = NULL;
 275 glMultiTexCoord4ivPROC glMultiTexCoord4ivARB = NULL;
 276 glMultiTexCoord4sPROC glMultiTexCoord4sARB = NULL;
 277 glMultiTexCoord4svPROC glMultiTexCoord4svARB = NULL;
 278
 279 /* ARB_transpose_matrix */
 280
 281 glLoadTransposeMatrixfPROC glLoadTransposeMatrixfARB = NULL;
 282 glLoadTransposeMatrixdPROC glLoadTransposeMatrixdARB = NULL;
 283 glMultTransposeMatrixfPROC glMultTransposeMatrixfARB = NULL;
 284 glMultTransposeMatrixdPROC glMultTransposeMatrixdARB = NULL;
 285
 286 /* ARB_texture_compression */
 287
 288 glCompressedTexImage3DPROC glCompressedTexImage3DARB = NULL;
 289 glCompressedTexImage2DPROC glCompressedTexImage2DARB = NULL;
 290 glCompressedTexImage1DPROC glCompressedTexImage1DARB = NULL;
 291 glCompressedTexSubImage3DPROC glCompressedTexSubImage3DARB = NULL;
 292 glCompressedTexSubImage2DPROC glCompressedTexSubImage2DARB = NULL;
 293 glCompressedTexSubImage1DPROC glCompressedTexSubImage1DARB = NULL;
 294 glGetCompressedTexImagePROC glGetCompressedTexImageARB = NULL;
 295
 296 glSecondaryColor3bEXTPROC glSecondaryColor3bEXT = NULL;
 297 glSecondaryColor3bvEXTPROC glSecondaryColor3bvEXT = NULL;
 298 glSecondaryColor3dEXTPROC glSecondaryColor3dEXT = NULL;
 299 glSecondaryColor3dvEXTPROC glSecondaryColor3dvEXT = NULL;
 300 glSecondaryColor3fEXTPROC glSecondaryColor3fEXT = NULL;
 301 glSecondaryColor3fvEXTPROC glSecondaryColor3fvEXT = NULL;
 302 glSecondaryColor3iEXTPROC glSecondaryColor3iEXT = NULL;
 303 glSecondaryColor3ivEXTPROC glSecondaryColor3ivEXT = NULL;
 304 glSecondaryColor3sEXTPROC glSecondaryColor3sEXT = NULL;
 305 glSecondaryColor3svEXTPROC glSecondaryColor3svEXT = NULL;
 306 glSecondaryColor3ubEXTPROC glSecondaryColor3ubEXT = NULL;
 307 glSecondaryColor3ubvEXTPROC glSecondaryColor3ubvEXT = NULL;
 308 glSecondaryColor3uiEXTPROC glSecondaryColor3uiEXT = NULL;
 309 glSecondaryColor3uivEXTPROC glSecondaryColor3uivEXT = NULL;
 310 glSecondaryColor3usEXTPROC glSecondaryColor3usEXT = NULL;
 311 glSecondaryColor3usvEXTPROC glSecondaryColor3usvEXT = NULL;
 312 glSecondaryColorPointerEXTPROC glSecondaryColorPointerEXT = NULL;
 313
 314 /* ETX_compiled_vertex_array */
 315
 316 glLockArraysEXTPROC glLockArraysEXT = NULL;
 317 glUnlockArraysEXTPROC glUnlockArraysEXT = NULL;
 318
 319
 320 /* EXT_fog_color */
 321
 322 glFogCoordfEXTPROC glFogCoordfEXT = NULL;
 323 glFogCoordfvEXTPROC glFogCoordfvEXT = NULL;
 324 glFogCoorddEXTPROC glFogCoorddEXT = NULL;
 325 glFogCoorddvEXTPROC glFogCoorddvEXT = NULL;
 326 glFogCoordPointerEXTPROC glFogCoordPointerEXT = NULL;
 327
 328 /* NV_vertex_array_range */
 329
 330 glFlushVertexArrayRangeNVPROC glFlushVertexArrayRangeNV = NULL;
 331 glVertexArrayRangeNVPROC glVertexArrayRangeNV = NULL;
 332
 333 /* EXT_point_parameters */
 334
 335 glPointParameterfEXTPROC glPointParameterfEXT = NULL;
 336 glPointParameterfvEXTPROC glPointParameterfvEXT = NULL;
 337
 338 /* NV_register_combiners */
 339
 340 glCombinerParameterfvNVPROC glCombinerParameterfvNV = NULL;
 341 glCombinerParameterfNVPROC  glCombinerParameterfNV = NULL;
 342 glCombinerParameterivNVPROC glCombinerParameterivNV = NULL;
 343 glCombinerParameteriNVPROC glCombinerParameteriNV = NULL;
 344 glCombinerInputNVPROC glCombinerInputNV = NULL;
 345 glCombinerOutputNVPROC glCombinerOutputNV = NULL;
 346 glFinalCombinerInputNVPROC glFinalCombinerInputNV = NULL;
 347 glGetCombinerInputParameterfvNVPROC glGetCombinerInputParameterfvNV = NULL;
 348 glGetCombinerInputParameterivNVPROC glGetCombinerInputParameterivNV = NULL;
 349 glGetCombinerOutputParameterfvNVPROC glGetCombinerOutputParameterfvNV = NULL;
 350 glGetCombinerOutputParameterivNVPROC glGetCombinerOutputParameterivNV = NULL;
 351 glGetFinalCombinerInputParameterfvNVPROC glGetFinalCombinerInputParameterfvNV = NULL;
 352 glGetFinalCombinerInputParameterivNVPROC glGetFinalCombinerInputParameterivNV = NULL;
 353
 354 /* ARB_multisample */
 355
 356 glSampleCoveragePROC glSampleCoverageARB = NULL;
 357
 358 /* EXT_vertex_weighting */
 359
 360 glVertexWeightfEXTPROC glVertexWeightfEXT = NULL;
 361 glVertexWeightfvEXTPROC glVertexWeightfvEXT = NULL;
 362 glVertexWeightPointerEXTPROC glVertexWeightPointerEXT = NULL;
 363
 364 /* NV_vertex_program */
 365
 366 glBindProgramNVPROC glBindProgramNV = NULL;
 367 glDeleteProgramsNVPROC glDeleteProgramsNV = NULL;
 368 glExecuteProgramNVPROC glExecuteProgramNV = NULL;
 369 glGenProgramsNVPROC glGenProgramsNV = NULL;
 370 glAreProgramsResidentNVPROC glAreProgramsResidentNV = NULL;
 371 glRequestResidentProgramsNVPROC glRequestResidentProgramsNV = NULL;
 372 glGetProgramParameterfvNVPROC glGetProgramParameterfvNV = NULL;
 373 glGetProgramParameterdvNVPROC glGetProgramParameterdvNV = NULL;
 374 glGetProgramivNVPROC glGetProgramivNV = NULL;
 375 glGetProgramStringNVPROC glGetProgramStringNV = NULL;
 376 glGetTrackMatrixivNVPROC glGetTrackMatrixivNV = NULL;
 377 glGetVertexAttribdvNVPROC glGetVertexAttribdvNV = NULL;
 378 glGetVertexAttribfvNVPROC glGetVertexAttribfvNV = NULL;
 379 glGetVertexAttribivNVPROC glGetVertexAttribivNV = NULL;
 380 glGetVertexAttribPointervNVPROC glGetVertexAttribPointervNV = NULL;
 381 glIsProgramNVPROC glIsProgramNV = NULL;
 382 glLoadProgramNVPROC glLoadProgramNV = NULL;
 383 glProgramParameter4fNVPROC glProgramParameter4fNV = NULL;
 384 glProgramParameter4dNVPROC glProgramParameter4dNV = NULL;
 385 glProgramParameter4dvNVPROC glProgramParameter4dvNV = NULL;
 386 glProgramParameter4fvNVPROC glProgramParameter4fvNV = NULL;
 387 glProgramParameters4dvNVPROC glProgramParameters4dvNV = NULL;
 388 glProgramParameters4fvNVPROC glProgramParameters4fvNV = NULL;
 389 glTrackMatrixNVPROC glTrackMatrixNV = NULL;
 390 glVertexAttribPointerNVPROC glVertexAttribPointerNV = NULL;
 391 glVertexAttrib1sNVPROC glVertexAttrib1sNV = NULL;
 392 glVertexAttrib1fNVPROC glVertexAttrib1fNV = NULL;
 393 glVertexAttrib1dNVPROC glVertexAttrib1dNV = NULL;
 394 glVertexAttrib2sNVPROC glVertexAttrib2sNV = NULL;
 395 glVertexAttrib2fNVPROC glVertexAttrib2fNV = NULL;
 396 glVertexAttrib2dNVPROC glVertexAttrib2dNV = NULL;
 397 glVertexAttrib3sNVPROC glVertexAttrib3sNV = NULL;
 398 glVertexAttrib3fNVPROC glVertexAttrib3fNV = NULL;
 399 glVertexAttrib3dNVPROC glVertexAttrib3dNV = NULL;
 400 glVertexAttrib4sNVPROC glVertexAttrib4sNV = NULL;
 401 glVertexAttrib4fNVPROC glVertexAttrib4fNV = NULL;
 402 glVertexAttrib4dNVPROC glVertexAttrib4dNV = NULL;
 403 glVertexAttrib4ubNVPROC glVertexAttrib4ubNV = NULL;
 404 glVertexAttrib1svNVPROC glVertexAttrib1svNV = NULL;
 405 glVertexAttrib1fvNVPROC glVertexAttrib1fvNV = NULL;
 406 glVertexAttrib1dvNVPROC glVertexAttrib1dvNV = NULL;
 407 glVertexAttrib2svNVPROC glVertexAttrib2svNV = NULL;
 408 glVertexAttrib2fvNVPROC glVertexAttrib2fvNV = NULL;
 409 glVertexAttrib2dvNVPROC glVertexAttrib2dvNV = NULL;
 410 glVertexAttrib3svNVPROC glVertexAttrib3svNV = NULL;
 411 glVertexAttrib3fvNVPROC glVertexAttrib3fvNV = NULL;
 412 glVertexAttrib3dvNVPROC glVertexAttrib3dvNV = NULL;
 413 glVertexAttrib4svNVPROC glVertexAttrib4svNV = NULL;
 414 glVertexAttrib4fvNVPROC glVertexAttrib4fvNV = NULL;
 415 glVertexAttrib4dvNVPROC glVertexAttrib4dvNV = NULL;
 416 glVertexAttrib4ubvNVPROC glVertexAttrib4ubvNV = NULL;
 417 glVertexAttribs1svNVPROC glVertexAttribs1svNV = NULL;
 418 glVertexAttribs1fvNVPROC glVertexAttribs1fvNV = NULL;
 419 glVertexAttribs1dvNVPROC glVertexAttribs1dvNV = NULL;
 420 glVertexAttribs2svNVPROC glVertexAttribs2svNV = NULL;
 421 glVertexAttribs2fvNVPROC glVertexAttribs2fvNV = NULL;
 422 glVertexAttribs2dvNVPROC glVertexAttribs2dvNV = NULL;
 423 glVertexAttribs3svNVPROC glVertexAttribs3svNV = NULL;
 424 glVertexAttribs3fvNVPROC glVertexAttribs3fvNV = NULL;
 425 glVertexAttribs3dvNVPROC glVertexAttribs3dvNV = NULL;
 426 glVertexAttribs4svNVPROC glVertexAttribs4svNV = NULL;
 427 glVertexAttribs4fvNVPROC glVertexAttribs4fvNV = NULL;
 428 glVertexAttribs4dvNVPROC glVertexAttribs4dvNV = NULL;
 429 glVertexAttribs4ubvNVPROC glVertexAttribs4ubvNV = NULL;
 430
 431 /* NV_fence */
 432
 433 glGenFencesNVPROC glGenFencesNV = NULL;
 434 glDeleteFencesNVPROC glDeleteFencesNV = NULL;
 435 glSetFenceNVPROC glSetFenceNV = NULL;
 436 glTestFenceNVPROC glTestFenceNV = NULL;
 437 glFinishFenceNVPROC glFinishFenceNV = NULL;
 438 glIsFenceNVPROC glIsFenceNV = NULL;
 439 glGetFenceivNVPROC glGetFenceivNV = NULL;
 440
 441 /* NV_register_combiners2 */
 442
 443 glCombinerStageParameterfvNVPROC glCombinerStageParameterfvNV = NULL;
 444 glGetCombinerStageParameterfvNVPROC glGetCombinerStageParameterfvNV = NULL;
 445
 446 /* NV_evaluators */
 447
 448 glMapControlPointsNVPROC glMapControlPointsNV = NULL;
 449 glMapParameterivNVPROC glMapParameterivNV = NULL;
 450 glMapParameterfvNVPROC glMapParameterfvNV = NULL;
 451 glGetMapControlPointsNVPROC glGetMapControlPointsNV = NULL;
 452 glGetMapParameterivNVPROC glGetMapParameterivNV = NULL;
 453 glGetMapParameterfvNVPROC glGetMapParameterfvNV = NULL;
 454 glGetMapAttribParameterivNVPROC glGetMapAttribParameterivNV = NULL;
 455 glGetMapAttribParameterfvNVPROC glGetMapAttribParameterfvNV = NULL;
 456 glEvalMapsNVPROC glEvalMapsNV = NULL;
 457
 458 /* ATI_pn_triangles */
 459
 460 glPNTrianglesiATIPROC glPNTrianglesiATI = NULL;
 461 glPNTrianglesfATIPROC glPNTrianglesfATI = NULL;
 462
 463 /* ARB_point_parameters */
 464
 465 glPointParameterfARBPROC glPointParameterfARB = NULL;
 466 glPointParameterfvARBPROC glPointParameterfvARB = NULL;
 467
 468 /* ARB_vertex_blend */
 469
 470 glWeightbvARBPROC glWeightbvARB = NULL;
 471 glWeightsvARBPROC glWeightsvARB = NULL;
 472 glWeightivARBPROC glWeightivARB = NULL;
 473 glWeightfvARBPROC glWeightfvARB = NULL;
 474 glWeightdvARBPROC glWeightdvARB = NULL;
 475 glWeightubvARBPROC glWeightubvARB = NULL;
 476 glWeightusvARBPROC glWeightusvARB = NULL;
 477 glWeightuivARBPROC glWeightuivARB = NULL;
 478 glWeightPointerARBPROC glWeightPointerARB = NULL;
 479 glVertexBlendARBPROC glVertexBlendARB = NULL;
 480
 481 /* EXT_multi_draw_arrays */
 482
 483 glMultiDrawArraysEXTPROC glMultiDrawArraysEXT = NULL;
 484 glMultiDrawElementsEXTPROC glMultiDrawElementsEXT = NULL;
 485
 486 /* ARB_matrix_palette */
 487
 488 glCurrentPaletteMatrixARBPROC glCurrentPaletteMatrixARB = NULL;
 489 glMatrixIndexubvARBPROC glMatrixIndexubvARB = NULL;
 490 glMatrixIndexusvARBPROC glMatrixIndexusvARB = NULL;
 491 glMatrixIndexuivARBPROC glMatrixIndexuivARB = NULL;
 492 glMatrixIndexPointerARBPROC glMatrixIndexPointerARB = NULL;
 493
 494 /* EXT_vertex_shader */
 495
 496 glBeginVertexShaderEXTPROC glBeginVertexShaderEXT = NULL;
 497 glEndVertexShaderEXTPROC glEndVertexShaderEXT = NULL;
 498 glBindVertexShaderEXTPROC glBindVertexShaderEXT = NULL;
 499 glGenVertexShadersEXTPROC glGenVertexShadersEXT = NULL;
 500 glDeleteVertexShaderEXTPROC glDeleteVertexShaderEXT = NULL;
 501 glShaderOp1EXTPROC glShaderOp1EXT = NULL;
 502 glShaderOp2EXTPROC glShaderOp2EXT = NULL;
 503 glShaderOp3EXTPROC glShaderOp3EXT = NULL;
 504 glSwizzleEXTPROC glSwizzleEXT = NULL;
 505 glWriteMaskEXTPROC glWriteMaskEXT = NULL;
 506 glInsertComponentEXTPROC glInsertComponentEXT = NULL;
 507 glExtractComponentEXTPROC glExtractComponentEXT = NULL;
 508 glGenSymbolsEXTPROC glGenSymbolsEXT = NULL;
 509 glSetInvariantEXTPROC glSetInvariantEXT = NULL;
 510 glSetLocalConstantEXTPROC glSetLocalConstantEXT = NULL;
 511 glVariantbvEXTPROC glVariantbvEXT = NULL;
 512 glVariantsvEXTPROC glVariantsvEXT = NULL;
 513 glVariantivEXTPROC glVariantivEXT = NULL;
 514 glVariantfvEXTPROC glVariantfvEXT = NULL;
 515 glVariantdvEXTPROC glVariantdvEXT = NULL;
 516 glVariantubvEXTPROC glVariantubvEXT = NULL;
 517 glVariantusvEXTPROC glVariantusvEXT = NULL;
 518 glVariantuivEXTPROC glVariantuivEXT = NULL;
 519 glVariantPointerEXTPROC glVariantPointerEXT = NULL;
 520 glEnableVariantClientStateEXTPROC glEnableVariantClientStateEXT = NULL;
 521 glDisableVariantClientStateEXTPROC glDisableVariantClientStateEXT = NULL;
 522 glBindLightParameterEXTPROC glBindLightParameterEXT = NULL;
 523 glBindMaterialParameterEXTPROC glBindMaterialParameterEXT = NULL;
 524 glBindTexGenParameterEXTPROC glBindTexGenParameterEXT = NULL;
 525 glBindTextureUnitParameterEXTPROC glBindTextureUnitParameterEXT = NULL;
 526 glBindParameterEXTPROC glBindParameterEXT = NULL;
 527 glIsVariantEnabledEXTPROC glIsVariantEnabledEXT = NULL;
 528 glGetVariantBooleanvEXTPROC glGetVariantBooleanvEXT = NULL;
 529 glGetVariantIntegervEXTPROC glGetVariantIntegervEXT = NULL;
 530 glGetVariantFloatvEXTPROC glGetVariantFloatvEXT = NULL;
 531 glGetVariantPointervEXTPROC glGetVariantPointervEXT = NULL;
 532 glGetInvariantBooleanvEXTPROC glGetInvariantBooleanvEXT = NULL;
 533 glGetInvariantIntegervEXTPROC glGetInvariantIntegervEXT = NULL;
 534 glGetInvariantFloatvEXTPROC glGetInvariantFloatvEXT = NULL;
 535 glGetLocalConstantBooleanvEXTPROC glGetLocalConstantBooleanvEXT = NULL;
 536 glGetLocalConstantIntegervEXTPROC glGetLocalConstantIntegervEXT = NULL;
 537 glGetLocalConstantFloatvEXTPROC glGetLocalConstantFloatvEXT = NULL;
 538
 539 /* ATI_envmap_bumpmap */
 540
 541 glTexBumpParameterivATIPROC glTexBumpParameterivATI = NULL;
 542 glTexBumpParameterfvATIPROC glTexBumpParameterfvATI = NULL;
 543 glGetTexBumpParameterivATIPROC glGetTexBumpParameterivATI = NULL;
 544 glGetTexBumpParameterfvATIPROC glGetTexBumpParameterfvATI = NULL;
 545
 546 /* ATI_fragment_shader */
 547
 548 glGenFragmentShadersATIPROC glGenFragmentShadersATI = NULL;
 549 glBindFragmentShaderATIPROC glBindFragmentShaderATI = NULL;
 550 glDeleteFragmentShaderATIPROC glDeleteFragmentShaderATI = NULL;
 551 glBeginFragmentShaderATIPROC glBeginFragmentShaderATI = NULL;
 552 glEndFragmentShaderATIPROC glEndFragmentShaderATI = NULL;
 553 glPassTexCoordATIPROC glPassTexCoordATI = NULL;
 554 glSampleMapATIPROC glSampleMapATI = NULL;
 555 glColorFragmentOp1ATIPROC glColorFragmentOp1ATI = NULL;
 556 glColorFragmentOp2ATIPROC glColorFragmentOp2ATI = NULL;
 557 glColorFragmentOp3ATIPROC glColorFragmentOp3ATI = NULL;
 558 glAlphaFragmentOp1ATIPROC glAlphaFragmentOp1ATI = NULL;
 559 glAlphaFragmentOp2ATIPROC glAlphaFragmentOp2ATI = NULL;
 560 glAlphaFragmentOp3ATIPROC glAlphaFragmentOp3ATI = NULL;
 561 glSetFragmentShaderConstantATIPROC glSetFragmentShaderConstantATI = NULL;
 562
 563 /* ATI_element_array */
 564
 565 glElementPointerATIPROC glElementPointerATI = NULL;
 566 glDrawElementArrayATIPROC glDrawElementArrayATI = NULL;
 567 glDrawRangeElementArrayATIPROC glDrawRangeElementArrayATI = NULL;
 568
 569 /* ATI_vertex_streams */
 570
 571 glClientActiveVertexStreamATIPROC glClientActiveVertexStreamATI = NULL;
 572 glVertexBlendEnviATIPROC glVertexBlendEnviATI = NULL;
 573 glVertexBlendEnvfATIPROC glVertexBlendEnvfATI = NULL;
 574 glVertexStream2sATIPROC glVertexStream2sATI = NULL;
 575 glVertexStream2svATIPROC glVertexStream2svATI = NULL;
 576 glVertexStream2iATIPROC glVertexStream2iATI = NULL;
 577 glVertexStream2ivATIPROC glVertexStream2ivATI = NULL;
 578 glVertexStream2fATIPROC glVertexStream2fATI = NULL;
 579 glVertexStream2fvATIPROC glVertexStream2fvATI = NULL;
 580 glVertexStream2dATIPROC glVertexStream2dATI = NULL;
 581 glVertexStream2dvATIPROC glVertexStream2dvATI = NULL;
 582 glVertexStream3sATIPROC glVertexStream3sATI = NULL;
 583 glVertexStream3svATIPROC glVertexStream3svATI = NULL;
 584 glVertexStream3iATIPROC glVertexStream3iATI = NULL;
 585 glVertexStream3ivATIPROC glVertexStream3ivATI = NULL;
 586 glVertexStream3fATIPROC glVertexStream3fATI = NULL;
 587 glVertexStream3fvATIPROC glVertexStream3fvATI = NULL;
 588 glVertexStream3dATIPROC glVertexStream3dATI = NULL;
 589 glVertexStream3dvATIPROC glVertexStream3dvATI = NULL;
 590 glVertexStream4sATIPROC glVertexStream4sATI = NULL;
 591 glVertexStream4svATIPROC glVertexStream4svATI = NULL;
 592 glVertexStream4iATIPROC glVertexStream4iATI = NULL;
 593 glVertexStream4ivATIPROC glVertexStream4ivATI = NULL;
 594 glVertexStream4fATIPROC glVertexStream4fATI = NULL;
 595 glVertexStream4fvATIPROC glVertexStream4fvATI = NULL;
 596 glVertexStream4dATIPROC glVertexStream4dATI = NULL;
 597 glVertexStream4dvATIPROC glVertexStream4dvATI = NULL;
 598 glNormalStream3bATIPROC glNormalStream3bATI = NULL;
 599 glNormalStream3bvATIPROC glNormalStream3bvATI = NULL;
 600 glNormalStream3sATIPROC glNormalStream3sATI = NULL;
 601 glNormalStream3svATIPROC glNormalStream3svATI = NULL;
 602 glNormalStream3iATIPROC glNormalStream3iATI = NULL;
 603 glNormalStream3ivATIPROC glNormalStream3ivATI = NULL;
 604 glNormalStream3fATIPROC glNormalStream3fATI = NULL;
 605 glNormalStream3fvATIPROC glNormalStream3fvATI = NULL;
 606 glNormalStream3dATIPROC glNormalStream3dATI = NULL;
 607 glNormalStream3dvATIPROC glNormalStream3dvATI = NULL;
 608
 609 /* ATI_vertex_array_object */
 610
 611 glNewObjectBufferATIPROC glNewObjectBufferATI = NULL;
 612 glIsObjectBufferATIPROC glIsObjectBufferATI = NULL;
 613 glUpdateObjectBufferATIPROC glUpdateObjectBufferATI = NULL;
 614 glGetObjectBufferfvATIPROC glGetObjectBufferfvATI = NULL;
 615 glGetObjectBufferivATIPROC glGetObjectBufferivATI = NULL;
 616 glFreeObjectBufferATIPROC glFreeObjectBufferATI = NULL;
 617 glArrayObjectATIPROC glArrayObjectATI = NULL;
 618 glGetArrayObjectfvATIPROC glGetArrayObjectfvATI = NULL;
 619 glGetArrayObjectivATIPROC glGetArrayObjectivATI = NULL;
 620 glVariantArrayObjectATIPROC glVariantArrayObjectATI = NULL;
 621 glGetVariantArrayObjectfvATIPROC glGetVariantArrayObjectfvATI = NULL;
 622 glGetVariantArrayObjectivATIPROC glGetVariantArrayObjectivATI = NULL;
 623
 624 /* NV_occlusion_query */
 625
 626 glGenOcclusionQueriesNVPROC glGenOcclusionQueriesNV = NULL;
 627 glDeleteOcclusionQueriesNVPROC glDeleteOcclusionQueriesNV = NULL;
 628 glIsOcclusionQueryNVPROC glIsOcclusionQueryNV = NULL;
 629 glBeginOcclusionQueryNVPROC glBeginOcclusionQueryNV = NULL;
 630 glEndOcclusionQueryNVPROC glEndOcclusionQueryNV = NULL;
 631 glGetOcclusionQueryivNVPROC glGetOcclusionQueryivNV = NULL;
 632 glGetOcclusionQueryuivNVPROC glGetOcclusionQueryuivNV = NULL;
 633
 634 /* NV_point_sprite */
 635
 636 glPointParameteriNVPROC glPointParameteriNV = NULL;
 637 glPointParameterivNVPROC glPointParameterivNV = NULL;
 638
 639 /* ARB_window_pos */
 640
 641 glWindowPos2dARBPROC glWindowPos2dARB = NULL;
 642 glWindowPos2fARBPROC glWindowPos2fARB = NULL;
 643 glWindowPos2iARBPROC glWindowPos2iARB = NULL;
 644 glWindowPos2sARBPROC glWindowPos2sARB = NULL;
 645 glWindowPos2dvARBPROC glWindowPos2dvARB = NULL;
 646 glWindowPos2fvARBPROC glWindowPos2fvARB = NULL;
 647 glWindowPos2ivARBPROC glWindowPos2ivARB = NULL;
 648 glWindowPos2svARBPROC glWindowPos2svARB = NULL;
 649 glWindowPos3dARBPROC glWindowPos3dARB = NULL;
 650 glWindowPos3fARBPROC glWindowPos3fARB = NULL;
 651 glWindowPos3iARBPROC glWindowPos3iARB = NULL;
 652 glWindowPos3sARBPROC glWindowPos3sARB = NULL;
 653 glWindowPos3dvARBPROC glWindowPos3dvARB = NULL;
 654 glWindowPos3fvARBPROC glWindowPos3fvARB = NULL;
 655 glWindowPos3ivARBPROC glWindowPos3ivARB = NULL;
 656 glWindowPos3svARBPROC glWindowPos3svARB = NULL;
 657
 658 /* misc  */
 659
 660 static int error = 0;
 661
 662 struct ExtensionTypes SupportedExtensions;
 663
 664 /* getProcAddress */
 665
 666 void *lglGetProcAddress(char *name)
 667 {
 668 #ifdef WIN32
 669     void *t = wglGetProcAddress(name);
 670 /*    char err[1000];*/
 671     if (t == NULL)
 672     {
 673         /*sprintf(err, "wglGetProcAddress on %s failed", name);*/
 674         error = 1;  /*      MessageBox(0, err, "Error", MB_OK | MB_ICONHAND);*/
 675     }
 676     return t;
 677 #else
 678     void *t = glXGetProcAddressARB((byte*)name);
 679     if (t == NULL)
 680     {
 681         error = 1:
 682     }
 683     return t;
 684 #endif
 685 }
 686
 687 /*-----------------------------------------------------*/
 688 /* WGL stuff */
 689 /*-----------------------------------------------------*/
 690
 691 #ifdef WIN32
 692
 693 static HDC _dc = 0;
 694
 695 #endif /* WIN32 */
 696
 697 #ifdef WIN32
 698
 699 /* set the DC you will be working with */
 700
 701 /** returns true if the extention is available */
 702 int QueryWGLExtension(const char *name)
 703 {
 704     const GLubyte *extensions = NULL;
 705     const GLubyte *start;
 706     GLubyte *where, *terminator;
 707
 708     /* Extension names should not have spaces. */
 709     where = (GLubyte *) strchr(name, ' ');
 710     if (where || *name == '\0')
 711         return 0;
 712     if ((wglGetExtensionsStringARB == NULL) || (_dc == 0))
 713         if (wglGetExtensionsStringEXT == NULL)
 714             return 0;
 715         else
 716             extensions = wglGetExtensionsStringEXT();
 717     else
 718         extensions = wglGetExtensionsStringARB(_dc);
 719     /* It takes a bit of care to be fool-proof about parsing the
 720          OpenGL extensions string. Don't be fooled by sub-strings,
 721         etc. */
 722     start = extensions;
 723     for (;;)
 724     {
 725         where = (GLubyte *) strstr((const char *) start, name);
 726         if (!where)
 727             break;
 728         terminator = where + strlen(name);
 729         if (where == start || *(where - 1) == ' ')
 730             if (*terminator == ' ' || *terminator == '\0')
 731                 return 1;
 732         start = terminator;
 733     }
 734     return 0;
 735 }
 736
 737 void InitWGLARBBufferRegion()
 738 {
 739     if (!SupportedExtensions.wgl.ARB_buffer_region)
 740         return;
 741     wglCreateBufferRegionARB = (wglCreateBufferRegionARBPROC) lglGetProcAddress("wglCreateBufferRegionARB");
 742     wglDeleteBufferRegionARB = (wglDeleteBufferRegionARBPROC) lglGetProcAddress("wglDeleteBufferRegionARB");
 743     wglSaveBufferRegionARB = (wglSaveBufferRegionARBPROC) lglGetProcAddress("wglSaveBufferRegionARB");
 744     wglRestoreBufferRegionARB = (wglRestoreBufferRegionARBPROC) lglGetProcAddress("wglRestoreBufferRegionARB");
 745
 746 }
 747
 748 void InitWGLARBPbuffer()
 749 {
 750     if (!SupportedExtensions.wgl.ARB_pbuffer)
 751         return;
 752     wglCreatePbufferARB = (wglCreatePbufferARBPROC) lglGetProcAddress("wglCreatePbufferARB");
 753     wglGetPbufferDCARB = (wglGetPbufferDCARBPROC) lglGetProcAddress("wglGetPbufferDCARB");
 754     wglReleasePbufferDCARB = (wglReleasePbufferDCARBPROC) lglGetProcAddress("wglReleasePbufferDCARB");
 755     wglDestroyPbufferARB = (wglDestroyPbufferARBPROC) lglGetProcAddress("wglDestroyPbufferARB");
 756     wglQueryPbufferARB = (wglQueryPbufferARBPROC) lglGetProcAddress("wglQueryPbufferARB");
 757 }
 758
 759 void InitWGLARBPixelFormat()
 760 {
 761     if (!SupportedExtensions.wgl.ARB_pixel_format)
 762         return;
 763     wglGetPixelFormatAttribivARB = (wglGetPixelFormatAttribivARBPROC) lglGetProcAddress("wglGetPixelFormatAttribivARB");
 764     wglGetPixelFormatAttribfvARB = (wglGetPixelFormatAttribfvARBPROC) lglGetProcAddress("wglGetPixelFormatAttribfvARB");
 765     wglChoosePixelFormatARB = (wglChoosePixelFormatARBPROC) lglGetProcAddress("wglChoosePixelFormatARB");
 766 }
 767
 768 void InitWGLARBRenderTexture()
 769 {
 770     if (!SupportedExtensions.wgl.ARB_render_texture)
 771         return;
 772     wglBindTexImageARB = (wglBindTexImageARBPROC) lglGetProcAddress("wglBindTexImageARB");
 773     wglReleaseTexImageARB = (wglReleaseTexImageARBPROC) lglGetProcAddress("wglReleaseTexImageARB");
 774     wglSetPbufferAttribARB = (wglSetPbufferAttribARBPROC) lglGetProcAddress("wglSetPbufferAttribARB");
 775 }
 776
 777 void InitWGLEXTSwapControl()
 778 {
 779     if (!SupportedExtensions.wgl.EXT_swap_control)
 780         return;
 781     wglSwapIntervalEXT = (wglSwapIntervalEXTPROC) lglGetProcAddress("wglSwapIntervalEXT");
 782     wglGetSwapIntervalEXT = (wglGetSwapIntervalEXTPROC) lglGetProcAddress("wglGetSwapIntervalEXT");
 783 }
 784
 785 void InitWGLARBMakeCurrentRead()
 786 {
 787     if (!SupportedExtensions.wgl.ARB_make_current_read)
 788         return;
 789     wglMakeContextCurrentARB = (wglMakeContextCurrentARBPROC) lglGetProcAddress("wglMakeContextCurrentARB");
 790     wglGetCurrentReadDCARB = (wglGetCurrentReadDCARBPROC) lglGetProcAddress("wglGetCurrentReadDCARB");
 791 }
 792
 793 void InitSupportedWGLExtensions()
 794 {
 795     SupportedExtensions.wgl.ARB_buffer_region = QueryWGLExtension("WGL_ARB_buffer_region");
 796     SupportedExtensions.wgl.ARB_pbuffer = QueryWGLExtension("WGL_ARB_pbuffer");
 797     SupportedExtensions.wgl.ARB_pixel_format = QueryWGLExtension("WGL_ARB_pixel_format");
 798     SupportedExtensions.wgl.ARB_render_texture = QueryWGLExtension("WGL_ARB_render_texture");
 799     SupportedExtensions.wgl.EXT_swap_control = QueryWGLExtension("WGL_EXT_swap_control");
 800     SupportedExtensions.wgl.ARB_make_current_read = QueryWGLExtension("WGL_ARB_make_current_read");
 801     SupportedExtensions.wgl.ARB_multisample = QueryWGLExtension("WGL_ARB_multisample");
 802 }
 803
 804 void _wglSetDC(HDC dc)
 805 {
 806     _dc = dc;
 807 }
 808
 809 int wglInitialize(HDC dc)
 810 {
 811     _dc = dc;
 812     error = 0;
 813     wglGetExtensionsStringARB = (wglGetExtensionsStringARBPROC) lglGetProcAddress("wglGetExtensionsStringARB");
 814     wglGetExtensionsStringEXT = (wglGetExtensionsStringEXTPROC) lglGetProcAddress("wglGetExtensionsStringEXT");
 815     SupportedExtensions.wgl.ARB_extensions_string = wglGetExtensionsStringARB != NULL;
 816     SupportedExtensions.wgl.EXT_extensions_string = wglGetExtensionsStringEXT != NULL;
 817     error = 0;
 818
 819     InitSupportedWGLExtensions();
 820
 821
 822     InitWGLARBMakeCurrentRead();
 823     InitWGLEXTSwapControl();
 824     InitWGLARBRenderTexture();
 825     InitWGLARBPixelFormat();
 826     InitWGLARBPbuffer();
 827     InitWGLARBBufferRegion();
 828
 829     return error;
 830 }
 831
 832 #endif /* WIN32 */
 833
 834 /*-----------------------------------------------------*/
 835 /* WGL stuff END*/
 836 /*-----------------------------------------------------*/
 837
 838 /** returns true if the extention is available */
 839 int QueryExtension(const char *name)
 840 {
 841     const GLubyte *extensions = NULL;
 842     const GLubyte *start;
 843     GLubyte *where, *terminator;
 844
 845     /* Extension names should not have spaces. */
 846     where = (GLubyte *) strchr(name, ' ');
 847     if (where || *name == '\0')
 848         return 0;
 849     extensions = glGetString(GL_EXTENSIONS);
 850     /* It takes a bit of care to be fool-proof about parsing the
 851          OpenGL extensions string. Don't be fooled by sub-strings,
 852         etc. */
 853     start = extensions;
 854     for (;;)
 855     {
 856         where = (GLubyte *) strstr((const char *) start, name);
 857         if (!where)
 858             break;
 859         terminator = where + strlen(name);
 860         if (where == start || *(where - 1) == ' ')
 861             if (*terminator == ' ' || *terminator == '\0')
 862                 return 1;
 863         start = terminator;
 864     }
 865     return 0;
 866
 867 /*    char *s = (char*)glGetString(GL_EXTENSIONS);
 868     char *temp = strstr(s, name);
 869     return temp!=NULL;*/
 870 }
 871
 872 void InitARBWindowPos()
 873 {
 874     if (!SupportedExtensions.ARB_window_pos)
 875         return;
 876     glWindowPos2dARB = (glWindowPos2dARBPROC) lglGetProcAddress("glWindowPos2dARB");
 877     glWindowPos2fARB = (glWindowPos2fARBPROC) lglGetProcAddress("glWindowPos2fARB");
 878     glWindowPos2iARB = (glWindowPos2iARBPROC) lglGetProcAddress("glWindowPos2iARB");
 879     glWindowPos2sARB = (glWindowPos2sARBPROC) lglGetProcAddress("glWindowPos2sARB");
 880     glWindowPos2dvARB = (glWindowPos2dvARBPROC) lglGetProcAddress("glWindowPos2dvARB");
 881     glWindowPos2fvARB = (glWindowPos2fvARBPROC) lglGetProcAddress("glWindowPos2fvARB");
 882     glWindowPos2ivARB = (glWindowPos2ivARBPROC) lglGetProcAddress("glWindowPos2ivARB");
 883     glWindowPos2svARB = (glWindowPos2svARBPROC) lglGetProcAddress("glWindowPos2svARB");
 884     glWindowPos3dARB = (glWindowPos3dARBPROC) lglGetProcAddress("glWindowPos3dARB");
 885     glWindowPos3fARB = (glWindowPos3fARBPROC) lglGetProcAddress("glWindowPos3fARB");
 886     glWindowPos3iARB = (glWindowPos3iARBPROC) lglGetProcAddress("glWindowPos3iARB");
 887     glWindowPos3sARB = (glWindowPos3sARBPROC) lglGetProcAddress("glWindowPos3sARB");
 888     glWindowPos3dvARB = (glWindowPos3dvARBPROC) lglGetProcAddress("glWindowPos3dvARB");
 889     glWindowPos3fvARB = (glWindowPos3fvARBPROC) lglGetProcAddress("glWindowPos3fvARB");
 890     glWindowPos3ivARB = (glWindowPos3ivARBPROC) lglGetProcAddress("glWindowPos3ivARB");
 891     glWindowPos3svARB = (glWindowPos3svARBPROC) lglGetProcAddress("glWindowPos3svARB");
 892 }
 893
 894 void InitARBTextureCompression()
 895 {
 896     if (!SupportedExtensions.ARB_texture_compression)
 897         return;
 898     glCompressedTexImage3DARB = (glCompressedTexImage3DPROC) lglGetProcAddress("glCompressedTexImage3DARB");
 899     glCompressedTexImage2DARB = (glCompressedTexImage2DPROC) lglGetProcAddress("glCompressedTexImage2DARB");
 900     glCompressedTexImage1DARB = (glCompressedTexImage1DPROC) lglGetProcAddress("glCompressedTexImage1DARB");
 901     glCompressedTexSubImage3DARB = (glCompressedTexSubImage3DPROC) lglGetProcAddress("glCompressedTexSubImage3DARB");
 902     glCompressedTexSubImage2DARB = (glCompressedTexSubImage2DPROC) lglGetProcAddress("glCompressedTexSubImage2DARB");
 903     glCompressedTexSubImage1DARB = (glCompressedTexSubImage1DPROC) lglGetProcAddress("glCompressedTexSubImage1DARB");
 904     glGetCompressedTexImageARB = (glGetCompressedTexImagePROC) lglGetProcAddress("glGetCompressedTexImageARB");
 905 }
 906
 907 void InitNVPointSprite()
 908 {
 909     if (!SupportedExtensions.NV_point_sprite)
 910         return;
 911     glPointParameteriNV = (glPointParameteriNVPROC) lglGetProcAddress("glPointParameteriNV");
 912     glPointParameterivNV = (glPointParameterivNVPROC) lglGetProcAddress("glPointParameterivNV");
 913 }
 914
 915 void InitNVOcclusionQuery()
 916 {
 917     if (!SupportedExtensions.NV_occlusion_query)
 918         return;
 919     glGenOcclusionQueriesNV = (glGenOcclusionQueriesNVPROC) lglGetProcAddress("glGenOcclusionQueriesNV");
 920     glDeleteOcclusionQueriesNV = (glDeleteOcclusionQueriesNVPROC) lglGetProcAddress("glDeleteOcclusionQueriesNV");
 921     glIsOcclusionQueryNV = (glIsOcclusionQueryNVPROC) lglGetProcAddress("glIsOcclusionQueryNV");
 922     glBeginOcclusionQueryNV = (glBeginOcclusionQueryNVPROC) lglGetProcAddress("glBeginOcclusionQueryNV");
 923     glEndOcclusionQueryNV = (glEndOcclusionQueryNVPROC) lglGetProcAddress("glEndOcclusionQueryNV");
 924     glGetOcclusionQueryivNV = (glGetOcclusionQueryivNVPROC) lglGetProcAddress("glGetOcclusionQueryivNV");
 925     glGetOcclusionQueryuivNV = (glGetOcclusionQueryuivNVPROC) lglGetProcAddress("glGetOcclusionQueryuivNV");
 926 }
 927
 928 #ifndef __PROTOTYPE__
 929
 930 void InitATIVertexArrayObject()
 931 {
 932     if (!SupportedExtensions.ATI_vertex_array_object)
 933         return;
 934     glNewObjectBufferATI = (glNewObjectBufferATIPROC) lglGetProcAddress("glNewObjectBufferATI");
 935     glIsObjectBufferATI = (glIsObjectBufferATIPROC) lglGetProcAddress("glIsObjectBufferATI");
 936     glUpdateObjectBufferATI = (glUpdateObjectBufferATIPROC) lglGetProcAddress("glUpdateObjectBufferATI");
 937     glGetObjectBufferfvATI = (glGetObjectBufferfvATIPROC) lglGetProcAddress("glGetObjectBufferfvATI");
 938     glGetObjectBufferivATI = (glGetObjectBufferivATIPROC) lglGetProcAddress("glGetObjectBufferivATI");
 939     glFreeObjectBufferATI = (glFreeObjectBufferATIPROC) lglGetProcAddress("glFreeObjectBufferATI");
 940     glArrayObjectATI = (glArrayObjectATIPROC) lglGetProcAddress("glArrayObjectATI");
 941     glGetArrayObjectfvATI = (glGetArrayObjectfvATIPROC) lglGetProcAddress("glGetArrayObjectfvATI");
 942     glGetArrayObjectivATI = (glGetArrayObjectivATIPROC) lglGetProcAddress("glGetArrayObjectivATI");
 943     glVariantArrayObjectATI = (glVariantArrayObjectATIPROC) lglGetProcAddress("glVariantArrayObjectATI");
 944     glGetVariantArrayObjectfvATI = (glGetVariantArrayObjectfvATIPROC) lglGetProcAddress("glGetVariantArrayObjectfvATI");
 945     glGetVariantArrayObjectivATI = (glGetVariantArrayObjectivATIPROC) lglGetProcAddress("glGetVariantArrayObjectivATI");
 946 }
 947
 948 void InitATIVertexStreams()
 949 {
 950     if (!SupportedExtensions.ATI_vertex_streams)
 951         return;
 952     glClientActiveVertexStreamATI = (glClientActiveVertexStreamATIPROC) lglGetProcAddress("glClientActiveVertexStreamATI");
 953     glVertexBlendEnviATI = (glVertexBlendEnviATIPROC) lglGetProcAddress("glVertexBlendEnviATI");
 954     glVertexBlendEnvfATI = (glVertexBlendEnvfATIPROC) lglGetProcAddress("glVertexBlendEnvfATI");
 955     glVertexStream2sATI = (glVertexStream2sATIPROC) lglGetProcAddress("glVertexStream2sATI");
 956     glVertexStream2svATI = (glVertexStream2svATIPROC) lglGetProcAddress("glVertexStream2svATI");
 957     glVertexStream2iATI = (glVertexStream2iATIPROC) lglGetProcAddress("glVertexStream2iATI");
 958     glVertexStream2ivATI = (glVertexStream2ivATIPROC) lglGetProcAddress("glVertexStream2ivATI");
 959     glVertexStream2fATI = (glVertexStream2fATIPROC) lglGetProcAddress("glVertexStream2fATI");
 960     glVertexStream2fvATI = (glVertexStream2fvATIPROC) lglGetProcAddress("glVertexStream2fvATI");
 961     glVertexStream2dATI = (glVertexStream2dATIPROC) lglGetProcAddress("glVertexStream2dATI");
 962     glVertexStream2dvATI = (glVertexStream2dvATIPROC) lglGetProcAddress("glVertexStream2dvATI");
 963     glVertexStream3sATI = (glVertexStream3sATIPROC) lglGetProcAddress("glVertexStream3sATI");
 964     glVertexStream3svATI = (glVertexStream3svATIPROC) lglGetProcAddress("glVertexStream3svATI");
 965     glVertexStream3iATI = (glVertexStream3iATIPROC) lglGetProcAddress("glVertexStream3iATI");
 966     glVertexStream3ivATI = (glVertexStream3ivATIPROC) lglGetProcAddress("glVertexStream3ivATI");
 967     glVertexStream3fATI = (glVertexStream3fATIPROC) lglGetProcAddress("glVertexStream3fATI");
 968     glVertexStream3fvATI = (glVertexStream3fvATIPROC) lglGetProcAddress("glVertexStream3fvATI");
 969     glVertexStream3dATI = (glVertexStream3dATIPROC) lglGetProcAddress("glVertexStream3dATI");
 970     glVertexStream3dvATI = (glVertexStream3dvATIPROC) lglGetProcAddress("glVertexStream3dvATI");
 971     glVertexStream4sATI = (glVertexStream4sATIPROC) lglGetProcAddress("glVertexStream4sATI");
 972     glVertexStream4svATI = (glVertexStream4svATIPROC) lglGetProcAddress("glVertexStream4svATI");
 973     glVertexStream4iATI = (glVertexStream4iATIPROC) lglGetProcAddress("glVertexStream4iATI");
 974     glVertexStream4ivATI = (glVertexStream4ivATIPROC) lglGetProcAddress("glVertexStream4ivATI");
 975     glVertexStream4fATI = (glVertexStream4fATIPROC) lglGetProcAddress("glVertexStream4fATI");
 976     glVertexStream4fvATI = (glVertexStream4fvATIPROC) lglGetProcAddress("glVertexStream4fvATI");
 977     glVertexStream4dATI = (glVertexStream4dATIPROC) lglGetProcAddress("glVertexStream4dATI");
 978     glVertexStream4dvATI = (glVertexStream4dvATIPROC) lglGetProcAddress("glVertexStream4dvATI");
 979     glNormalStream3bATI = (glNormalStream3bATIPROC) lglGetProcAddress("glNormalStream3bATI");
 980     glNormalStream3bvATI = (glNormalStream3bvATIPROC) lglGetProcAddress("glNormalStream3bvATI");
 981     glNormalStream3sATI = (glNormalStream3sATIPROC) lglGetProcAddress("glNormalStream3sATI");
 982     glNormalStream3svATI = (glNormalStream3svATIPROC) lglGetProcAddress("glNormalStream3svATI");
 983     glNormalStream3iATI = (glNormalStream3iATIPROC) lglGetProcAddress("glNormalStream3iATI");
 984     glNormalStream3ivATI = (glNormalStream3ivATIPROC) lglGetProcAddress("glNormalStream3ivATI");
 985     glNormalStream3fATI = (glNormalStream3fATIPROC) lglGetProcAddress("glNormalStream3fATI");
 986     glNormalStream3fvATI = (glNormalStream3fvATIPROC) lglGetProcAddress("glNormalStream3fvATI");
 987     glNormalStream3dATI = (glNormalStream3dATIPROC) lglGetProcAddress("glNormalStream3dATI");
 988     glNormalStream3dvATI = (glNormalStream3dvATIPROC) lglGetProcAddress("glNormalStream3dvATI");
 989 }
 990
 991 void InitATIElementArray()
 992 {
 993     if (!SupportedExtensions.ATI_element_array)
 994         return;
 995     glElementPointerATI = (glElementPointerATIPROC) lglGetProcAddress("glElementPointerATI");
 996     glDrawElementArrayATI = (glDrawElementArrayATIPROC) lglGetProcAddress("glDrawElementArrayATI");
 997     glDrawRangeElementArrayATI = (glDrawRangeElementArrayATIPROC) lglGetProcAddress("glDrawRangeElementArrayATI");
 998 }
 999
1000 void InitATIFragmentShader()
1001 {
1002     if (!SupportedExtensions.ATI_fragment_shader)
1003         return;
1004     glGenFragmentShadersATI = (glGenFragmentShadersATIPROC) lglGetProcAddress("glGenFragmentShadersATI");
1005     glBindFragmentShaderATI = (glBindFragmentShaderATIPROC) lglGetProcAddress("glBindFragmentShaderATI");
1006     glDeleteFragmentShaderATI = (glDeleteFragmentShaderATIPROC) lglGetProcAddress("glDeleteFragmentShaderATI");
1007     glBeginFragmentShaderATI = (glBeginFragmentShaderATIPROC) lglGetProcAddress("glBeginFragmentShaderATI");
1008     glEndFragmentShaderATI = (glEndFragmentShaderATIPROC) lglGetProcAddress("glEndFragmentShaderATI");
1009     glPassTexCoordATI = (glPassTexCoordATIPROC) lglGetProcAddress("glPassTexCoordATI");
1010     glSampleMapATI = (glSampleMapATIPROC) lglGetProcAddress("glSampleMapATI");
1011     glColorFragmentOp1ATI = (glColorFragmentOp1ATIPROC) lglGetProcAddress("glColorFragmentOp1ATI");
1012     glColorFragmentOp2ATI = (glColorFragmentOp2ATIPROC) lglGetProcAddress("glColorFragmentOp2ATI");
1013     glColorFragmentOp3ATI = (glColorFragmentOp3ATIPROC) lglGetProcAddress("glColorFragmentOp3ATI");
1014     glAlphaFragmentOp1ATI = (glAlphaFragmentOp1ATIPROC) lglGetProcAddress("glAlphaFragmentOp1ATI");
1015     glAlphaFragmentOp2ATI = (glAlphaFragmentOp2ATIPROC) lglGetProcAddress("glAlphaFragmentOp2ATI");
1016     glAlphaFragmentOp3ATI = (glAlphaFragmentOp3ATIPROC) lglGetProcAddress("glAlphaFragmentOp3ATI");
1017     glSetFragmentShaderConstantATI = (glSetFragmentShaderConstantATIPROC) lglGetProcAddress("glSetFragmentShaderConstantATI");
1018 }
1019
1020 void InitATIEnvmapBumpmap()
1021 {
1022     if (!SupportedExtensions.ATI_envmap_bumpmap)
1023         return;
1024     glTexBumpParameterivATI = (glTexBumpParameterivATIPROC) lglGetProcAddress("glTexBumpParameterivATI");
1025     glTexBumpParameterfvATI = (glTexBumpParameterfvATIPROC) lglGetProcAddress("glTexBumpParameterfvATI");
1026     glGetTexBumpParameterivATI = (glGetTexBumpParameterivATIPROC) lglGetProcAddress("glGetTexBumpParameterivATI");
1027     glGetTexBumpParameterfvATI = (glGetTexBumpParameterfvATIPROC) lglGetProcAddress("glGetTexBumpParameterfvATI");
1028 }
1029
1030 void InitEXTVertexShader()
1031 {
1032     if (!SupportedExtensions.EXT_vertex_shader)
1033         return;
1034     glBeginVertexShaderEXT = (glBeginVertexShaderEXTPROC) lglGetProcAddress("glBeginVertexShaderEXT");
1035     glEndVertexShaderEXT = (glEndVertexShaderEXTPROC) lglGetProcAddress("glEndVertexShaderEXT");
1036     glBindVertexShaderEXT = (glBindVertexShaderEXTPROC) lglGetProcAddress("glBindVertexShaderEXT");
1037     glGenVertexShadersEXT = (glGenVertexShadersEXTPROC) lglGetProcAddress("glGenVertexShadersEXT");
1038     glDeleteVertexShaderEXT = (glDeleteVertexShaderEXTPROC) lglGetProcAddress("glDeleteVertexShaderEXT");
1039     glShaderOp1EXT = (glShaderOp1EXTPROC) lglGetProcAddress("glShaderOp1EXT");
1040     glShaderOp2EXT = (glShaderOp2EXTPROC) lglGetProcAddress("glShaderOp2EXT");
1041     glShaderOp3EXT = (glShaderOp3EXTPROC) lglGetProcAddress("glShaderOp3EXT");
1042     glSwizzleEXT = (glSwizzleEXTPROC) lglGetProcAddress("glSwizzleEXT");
1043     glWriteMaskEXT = (glWriteMaskEXTPROC) lglGetProcAddress("glWriteMaskEXT");
1044     glInsertComponentEXT = (glInsertComponentEXTPROC) lglGetProcAddress("glInsertComponentEXT");
1045     glExtractComponentEXT = (glExtractComponentEXTPROC) lglGetProcAddress("glExtractComponentEXT");
1046     glGenSymbolsEXT = (glGenSymbolsEXTPROC) lglGetProcAddress("glGenSymbolsEXT");
1047     glSetInvariantEXT = (glSetInvariantEXTPROC) lglGetProcAddress("glSetInvarianceEXT");
1048     glSetLocalConstantEXT = (glSetLocalConstantEXTPROC) lglGetProcAddress("glSetLocalConstantEXT");
1049     glVariantbvEXT = (glVariantbvEXTPROC) lglGetProcAddress("glVariantbvEXT");
1050     glVariantsvEXT = (glVariantsvEXTPROC) lglGetProcAddress("glVariantsvEXT");
1051     glVariantivEXT = (glVariantivEXTPROC) lglGetProcAddress("glVariantivEXT");
1052     glVariantfvEXT = (glVariantfvEXTPROC) lglGetProcAddress("glVariantfvEXT");
1053     glVariantdvEXT = (glVariantdvEXTPROC) lglGetProcAddress("glVariantdvEXT");
1054     glVariantubvEXT = (glVariantubvEXTPROC) lglGetProcAddress("glVariantubvEXT");
1055     glVariantusvEXT = (glVariantusvEXTPROC) lglGetProcAddress("glVariantusvEXT");
1056     glVariantuivEXT = (glVariantuivEXTPROC) lglGetProcAddress("glVariantuivEXT");
1057     glVariantPointerEXT = (glVariantPointerEXTPROC) lglGetProcAddress("glVariantPointerEXT");
1058     glEnableVariantClientStateEXT = (glEnableVariantClientStateEXTPROC) lglGetProcAddress("glEnableVariantClientStateEXT");
1059     glDisableVariantClientStateEXT = (glDisableVariantClientStateEXTPROC) lglGetProcAddress("glDisableVariantClientStateEXT");
1060     glBindLightParameterEXT = (glBindLightParameterEXTPROC) lglGetProcAddress("glBindLightParameterEXT");
1061     glBindMaterialParameterEXT = (glBindMaterialParameterEXTPROC) lglGetProcAddress("glBindMaterialParameterEXT");
1062     glBindTexGenParameterEXT = (glBindTexGenParameterEXTPROC) lglGetProcAddress("glBindTexGenParameterEXT");
1063     glBindTextureUnitParameterEXT = (glBindTextureUnitParameterEXTPROC) lglGetProcAddress("glBindTextureUnitParameterEXT");
1064     glBindParameterEXT = (glBindParameterEXTPROC) lglGetProcAddress("glBindParameterEXT");
1065     glIsVariantEnabledEXT = (glIsVariantEnabledEXTPROC) lglGetProcAddress("glIsVariantEnabledEXT");
1066     glGetVariantBooleanvEXT = (glGetVariantBooleanvEXTPROC) lglGetProcAddress("glGetVariantBooleanvEXT");
1067     glGetVariantIntegervEXT = (glGetVariantIntegervEXTPROC) lglGetProcAddress("glGetVariantIntegervEXT");
1068     glGetVariantFloatvEXT = (glGetVariantFloatvEXTPROC) lglGetProcAddress("glGetVariantFloatvEXT");
1069     glGetVariantPointervEXT = (glGetVariantPointervEXTPROC) lglGetProcAddress("glGetVariantPointervEXT");
1070     glGetInvariantBooleanvEXT = (glGetInvariantBooleanvEXTPROC) lglGetProcAddress("glGetInvariantBooleanvEXT");
1071     glGetInvariantIntegervEXT = (glGetInvariantIntegervEXTPROC) lglGetProcAddress("glGetInvariantIntegervEXT");
1072     glGetInvariantFloatvEXT = (glGetInvariantFloatvEXTPROC) lglGetProcAddress("glGetInvariantFloatvEXT");
1073     glGetLocalConstantBooleanvEXT = (glGetLocalConstantBooleanvEXTPROC) lglGetProcAddress("glGetLocalConstantBooleanvEXT");
1074     glGetLocalConstantIntegervEXT = (glGetLocalConstantIntegervEXTPROC) lglGetProcAddress("glGetLocalConstantIntegervEXT");
1075     glGetLocalConstantFloatvEXT = (glGetLocalConstantFloatvEXTPROC) lglGetProcAddress("glGetLocalConstantFloatvEXT");
1076 }
1077
1078 void InitARBMatrixPalette()
1079 {
1080     if (!SupportedExtensions.ARB_matrix_palette)
1081         return;
1082     glCurrentPaletteMatrixARB = (glCurrentPaletteMatrixARBPROC) lglGetProcAddress("glCurrentPaletteMatrixARB");
1083     glMatrixIndexubvARB = (glMatrixIndexubvARBPROC) lglGetProcAddress("glMatrixIndexubvARB");
1084     glMatrixIndexusvARB = (glMatrixIndexusvARBPROC) lglGetProcAddress("glMatrixIndexusvARB");
1085     glMatrixIndexuivARB = (glMatrixIndexuivARBPROC) lglGetProcAddress("glMatrixIndexuivARB");
1086     glMatrixIndexPointerARB = (glMatrixIndexPointerARBPROC) lglGetProcAddress("glMatrixIndexPointerARB");
1087 }
1088
1089 void InitEXTMultiDrawArrays()
1090 {
1091     if (!SupportedExtensions.EXT_multi_draw_arrays)
1092         return;
1093     glMultiDrawArraysEXT = (glMultiDrawArraysEXTPROC) lglGetProcAddress("glMultiDrawArraysEXT");
1094     glMultiDrawElementsEXT = (glMultiDrawElementsEXTPROC) lglGetProcAddress("glMultiDrawElementsEXT");
1095 }
1096
1097 void InitARBVertexBlend()
1098 {
1099     if (!SupportedExtensions.ARB_vertex_blend)
1100         return;
1101     glWeightbvARB = (glWeightbvARBPROC) lglGetProcAddress("glWeightbvARB");
1102     glWeightsvARB = (glWeightsvARBPROC) lglGetProcAddress("glWeightsvARB");
1103     glWeightivARB = (glWeightivARBPROC) lglGetProcAddress("glWeightivARB");
1104     glWeightfvARB = (glWeightfvARBPROC) lglGetProcAddress("glWeightfvARB");
1105     glWeightdvARB = (glWeightdvARBPROC) lglGetProcAddress("glWeightdvARB");
1106     glWeightubvARB = (glWeightubvARBPROC) lglGetProcAddress("glWeightubvARB");
1107     glWeightusvARB = (glWeightusvARBPROC) lglGetProcAddress("glWeightusvARB");
1108     glWeightuivARB = (glWeightuivARBPROC) lglGetProcAddress("glWeightuivARB");
1109     glWeightPointerARB = (glWeightPointerARBPROC) lglGetProcAddress("glWeightPointerARB");
1110     glVertexBlendARB = (glVertexBlendARBPROC) lglGetProcAddress("glVertexBlendARB");
1111 }
1112
1113 void InitARBPointParameters()
1114 {
1115     if (!SupportedExtensions.ARB_point_parameters)
1116         return;
1117     glPointParameterfARB = (glPointParameterfARBPROC) lglGetProcAddress("glPointParameterfARB");
1118     glPointParameterfvARB = (glPointParameterfvARBPROC) lglGetProcAddress("glPointParameterfvARB");
1119 }
1120
1121 void InitATIPNTriangles()
1122 {
1123     if (!SupportedExtensions.ATI_pn_triangles)
1124         return;
1125     glPNTrianglesiATI = (glPNTrianglesiATIPROC) lglGetProcAddress("glPNTrianglesiATI");
1126     glPNTrianglesfATI = (glPNTrianglesfATIPROC) lglGetProcAddress("glPNTrianglesfATI");
1127 }
1128
1129 void InitNVEvaluators()
1130 {
1131     if (!SupportedExtensions.NV_evaluators)
1132         return;
1133     glMapControlPointsNV = (glMapControlPointsNVPROC) lglGetProcAddress("glMapControlPointsNV");
1134     glMapParameterivNV = (glMapParameterivNVPROC) lglGetProcAddress("glMapParameterivNV");
1135     glMapParameterfvNV = (glMapParameterfvNVPROC) lglGetProcAddress("glMapParameterfvNV");
1136     glGetMapControlPointsNV = (glGetMapControlPointsNVPROC) lglGetProcAddress("glGetMapControlPointsNV");
1137     glGetMapParameterivNV = (glGetMapParameterivNVPROC) lglGetProcAddress("glGetMapParameterivNV");
1138     glGetMapParameterfvNV = (glGetMapParameterfvNVPROC) lglGetProcAddress("glGetMapParameterfvNV");
1139     glGetMapAttribParameterivNV = (glGetMapAttribParameterivNVPROC) lglGetProcAddress("glGetMapAttribParameterivNV");
1140     glGetMapAttribParameterfvNV = (glGetMapAttribParameterfvNVPROC) lglGetProcAddress("glGetMapAttribParameterfvNV");
1141     glEvalMapsNV = (glEvalMapsNVPROC) lglGetProcAddress("glEvalMapsNV");
1142 }
1143
1144 void InitNVRegisterCombiners2()
1145 {
1146     if (!SupportedExtensions.NV_register_combiners2)
1147         return;
1148     glCombinerStageParameterfvNV = (glCombinerStageParameterfvNVPROC) lglGetProcAddress("glCombinerStageParameterfvNV");
1149     glGetCombinerStageParameterfvNV = (glGetCombinerStageParameterfvNVPROC) lglGetProcAddress("glGetCombinerStageParameterfvNV");
1150 }
1151
1152 void InitNVFence()
1153 {
1154     if (!SupportedExtensions.NV_fence)
1155         return;
1156     glGenFencesNV = (glGenFencesNVPROC) lglGetProcAddress("glGenFencesNV");
1157     glDeleteFencesNV = (glDeleteFencesNVPROC) lglGetProcAddress("glDeleteFencesNV");
1158     glSetFenceNV = (glSetFenceNVPROC) lglGetProcAddress("glSetFenceNV");
1159     glTestFenceNV = (glTestFenceNVPROC) lglGetProcAddress("glTestFenceNV");
1160     glFinishFenceNV = (glFinishFenceNVPROC) lglGetProcAddress("glFinishFenceNV");
1161     glIsFenceNV = (glIsFenceNVPROC) lglGetProcAddress("glIsFenceNV");
1162     glGetFenceivNV = (glGetFenceivNVPROC) lglGetProcAddress("glGetFenceivNV");
1163 }
1164
1165 void InitNVVertexProgram()
1166 {
1167     if (!SupportedExtensions.NV_vertex_program)
1168         return;
1169     glBindProgramNV = (glBindProgramNVPROC) lglGetProcAddress("glBindProgramNV");
1170     glDeleteProgramsNV = (glDeleteProgramsNVPROC) lglGetProcAddress("glDeleteProgramsNV");
1171     glExecuteProgramNV = (glExecuteProgramNVPROC) lglGetProcAddress("glExecuteProgramNV");
1172     glGenProgramsNV = (glGenProgramsNVPROC) lglGetProcAddress("glGenProgramsNV");
1173     glAreProgramsResidentNV = (glAreProgramsResidentNVPROC) lglGetProcAddress("glAreProgramsResidentNV");
1174     glRequestResidentProgramsNV = (glRequestResidentProgramsNVPROC) lglGetProcAddress("glRequestResidentProgramsNV");
1175     glGetProgramParameterfvNV = (glGetProgramParameterfvNVPROC) lglGetProcAddress("glGetProgramParameterfvNV");
1176     glGetProgramParameterdvNV = (glGetProgramParameterdvNVPROC) lglGetProcAddress("glGetProgramParameterdvNV");
1177     glGetProgramivNV = (glGetProgramivNVPROC) lglGetProcAddress("glGetProgramivNV");
1178     glGetProgramStringNV = (glGetProgramStringNVPROC) lglGetProcAddress("glGetProgramStringNV");
1179     glGetTrackMatrixivNV = (glGetTrackMatrixivNVPROC) lglGetProcAddress("glGetTrackMatrixivNV");
1180     glGetVertexAttribdvNV = (glGetVertexAttribdvNVPROC) lglGetProcAddress("glGetVertexAttribdvNV");
1181     glGetVertexAttribfvNV = (glGetVertexAttribfvNVPROC) lglGetProcAddress("glGetVertexAttribfvNV");
1182     glGetVertexAttribivNV = (glGetVertexAttribivNVPROC) lglGetProcAddress("glGetVertexAttribivNV");
1183     glGetVertexAttribPointervNV = (glGetVertexAttribPointervNVPROC) lglGetProcAddress("glGetVertexAttribPointervNV");
1184     glIsProgramNV = (glIsProgramNVPROC) lglGetProcAddress("glIsProgramNV");
1185     glLoadProgramNV = (glLoadProgramNVPROC) lglGetProcAddress("glLoadProgramNV");
1186     glProgramParameter4fNV = (glProgramParameter4fNVPROC) lglGetProcAddress("glProgramParameter4fNV");
1187     glProgramParameter4dNV = (glProgramParameter4dNVPROC) lglGetProcAddress("glProgramParameter4dNV");
1188     glProgramParameter4dvNV = (glProgramParameter4dvNVPROC) lglGetProcAddress("glProgramParameter4dvNV");
1189     glProgramParameter4fvNV = (glProgramParameter4fvNVPROC) lglGetProcAddress("glProgramParameter4fvNV");
1190     glProgramParameters4dvNV = (glProgramParameters4dvNVPROC) lglGetProcAddress("glProgramParameters4dvNV");
1191     glProgramParameters4fvNV = (glProgramParameters4fvNVPROC) lglGetProcAddress("glProgramParameters4fvNV");
1192     glTrackMatrixNV = (glTrackMatrixNVPROC) lglGetProcAddress("glTrackMatrixNV");
1193     glVertexAttribPointerNV = (glVertexAttribPointerNVPROC) lglGetProcAddress("glVertexAttribPointerNV");
1194     glVertexAttrib1sNV = (glVertexAttrib1sNVPROC) lglGetProcAddress("glVertexAttrib1sNV");
1195     glVertexAttrib1fNV = (glVertexAttrib1fNVPROC) lglGetProcAddress("glVertexAttrib1fNV");
1196     glVertexAttrib1dNV = (glVertexAttrib1dNVPROC) lglGetProcAddress("glVertexAttrib1dNV");
1197     glVertexAttrib2sNV = (glVertexAttrib2sNVPROC) lglGetProcAddress("glVertexAttrib2sNV");
1198     glVertexAttrib2fNV = (glVertexAttrib2fNVPROC) lglGetProcAddress("glVertexAttrib2fNV");
1199     glVertexAttrib2dNV = (glVertexAttrib2dNVPROC) lglGetProcAddress("glVertexAttrib2dNV");
1200     glVertexAttrib3sNV = (glVertexAttrib3sNVPROC) lglGetProcAddress("glVertexAttrib3sNV");
1201     glVertexAttrib3fNV = (glVertexAttrib3fNVPROC) lglGetProcAddress("glVertexAttrib3fNV");
1202     glVertexAttrib3dNV = (glVertexAttrib3dNVPROC) lglGetProcAddress("glVertexAttrib3dNV");
1203     glVertexAttrib4sNV = (glVertexAttrib4sNVPROC) lglGetProcAddress("glVertexAttrib4sNV");
1204     glVertexAttrib4fNV = (glVertexAttrib4fNVPROC) lglGetProcAddress("glVertexAttrib4fNV");
1205     glVertexAttrib4dNV = (glVertexAttrib4dNVPROC) lglGetProcAddress("glVertexAttrib4dNV");
1206     glVertexAttrib4ubNV = (glVertexAttrib4ubNVPROC) lglGetProcAddress("glVertexAttrib4ubNV");
1207     glVertexAttrib1svNV = (glVertexAttrib1svNVPROC) lglGetProcAddress("glVertexAttrib1svNV");
1208     glVertexAttrib1fvNV = (glVertexAttrib1fvNVPROC) lglGetProcAddress("glVertexAttrib1fvNV");
1209     glVertexAttrib1dvNV = (glVertexAttrib1dvNVPROC) lglGetProcAddress("glVertexAttrib1dvNV");
1210     glVertexAttrib2svNV = (glVertexAttrib2svNVPROC) lglGetProcAddress("glVertexAttrib2svNV");
1211     glVertexAttrib2fvNV = (glVertexAttrib2fvNVPROC) lglGetProcAddress("glVertexAttrib2fvNV");
1212     glVertexAttrib2dvNV = (glVertexAttrib2dvNVPROC) lglGetProcAddress("glVertexAttrib2dvNV");
1213     glVertexAttrib3svNV = (glVertexAttrib3svNVPROC) lglGetProcAddress("glVertexAttrib3svNV");
1214     glVertexAttrib3fvNV = (glVertexAttrib3fvNVPROC) lglGetProcAddress("glVertexAttrib3fvNV");
1215     glVertexAttrib3dvNV = (glVertexAttrib3dvNVPROC) lglGetProcAddress("glVertexAttrib3dvNV");
1216     glVertexAttrib4svNV = (glVertexAttrib4svNVPROC) lglGetProcAddress("glVertexAttrib4svNV");
1217     glVertexAttrib4fvNV = (glVertexAttrib4fvNVPROC) lglGetProcAddress("glVertexAttrib4fvNV");
1218     glVertexAttrib4dvNV = (glVertexAttrib4dvNVPROC) lglGetProcAddress("glVertexAttrib4dvNV");
1219     glVertexAttrib4ubvNV = (glVertexAttrib4ubvNVPROC) lglGetProcAddress("glVertexAttrib4ubvNV");
1220     glVertexAttribs1svNV = (glVertexAttribs1svNVPROC) lglGetProcAddress("glVertexAttribs1svNV");
1221     glVertexAttribs1fvNV = (glVertexAttribs1fvNVPROC) lglGetProcAddress("glVertexAttribs1fvNV");
1222     glVertexAttribs1dvNV = (glVertexAttribs1dvNVPROC) lglGetProcAddress("glVertexAttribs1dvNV");
1223     glVertexAttribs2svNV = (glVertexAttribs2svNVPROC) lglGetProcAddress("glVertexAttribs2svNV");
1224     glVertexAttribs2fvNV = (glVertexAttribs2fvNVPROC) lglGetProcAddress("glVertexAttribs2fvNV");
1225     glVertexAttribs2dvNV = (glVertexAttribs2dvNVPROC) lglGetProcAddress("glVertexAttribs2dvNV");
1226     glVertexAttribs3svNV = (glVertexAttribs3svNVPROC) lglGetProcAddress("glVertexAttribs3svNV");
1227     glVertexAttribs3fvNV = (glVertexAttribs3fvNVPROC) lglGetProcAddress("glVertexAttribs3fvNV");
1228     glVertexAttribs3dvNV = (glVertexAttribs3dvNVPROC) lglGetProcAddress("glVertexAttribs3dvNV");
1229     glVertexAttribs4svNV = (glVertexAttribs4svNVPROC) lglGetProcAddress("glVertexAttribs4svNV");
1230     glVertexAttribs4fvNV = (glVertexAttribs4fvNVPROC) lglGetProcAddress("glVertexAttribs4fvNV");
1231     glVertexAttribs4dvNV = (glVertexAttribs4dvNVPROC) lglGetProcAddress("glVertexAttribs4dvNV");
1232     glVertexAttribs4ubvNV = (glVertexAttribs4ubvNVPROC) lglGetProcAddress("glVertexAttribs4ubvNV");
1233 }
1234
1235 void InitEXTVertexWeighting()
1236 {
1237     if (!SupportedExtensions.EXT_vertex_weighting)
1238         return;
1239     glVertexWeightfEXT = (glVertexWeightfEXTPROC) lglGetProcAddress("glVertexWeightfEXT");
1240     glVertexWeightfvEXT = (glVertexWeightfvEXTPROC) lglGetProcAddress("glVertexWeightfvEXT");
1241     glVertexWeightPointerEXT = (glVertexWeightPointerEXTPROC) lglGetProcAddress("glVertexWeightPointerEXT");
1242 }
1243
1244 void InitARBMultisample()
1245 {
1246     if (!SupportedExtensions.ARB_multisample)
1247         return;
1248     glSampleCoverageARB = (glSampleCoveragePROC) lglGetProcAddress("glSampleCoverageARB");
1249 }
1250
1251 void InitNVRegisterCombiners()
1252 {
1253     if (!SupportedExtensions.NV_register_combiners)
1254         return;
1255     glCombinerParameterfvNV = (glCombinerParameterfvNVPROC) lglGetProcAddress("glCombinerParameterfvNV");
1256     glCombinerParameterfNV = (glCombinerParameterfNVPROC) lglGetProcAddress("glCombinerParameterfNV");
1257     glCombinerParameterivNV = (glCombinerParameterivNVPROC) lglGetProcAddress("glCombinerParameterivNV");
1258     glCombinerParameteriNV = (glCombinerParameteriNVPROC) lglGetProcAddress("glCombinerParameteriNV");
1259     glCombinerInputNV = (glCombinerInputNVPROC) lglGetProcAddress("glCombinerInputNV");
1260     glCombinerOutputNV = (glCombinerOutputNVPROC) lglGetProcAddress("glCombinerOutputNV");
1261     glFinalCombinerInputNV = (glFinalCombinerInputNVPROC) lglGetProcAddress("glFinalCombinerInputNV");
1262     glGetCombinerInputParameterfvNV = (glGetCombinerInputParameterfvNVPROC) lglGetProcAddress("glGetCombinerInputParameterfvNV");
1263     glGetCombinerInputParameterivNV = (glGetCombinerInputParameterivNVPROC) lglGetProcAddress("glGetCombinerInputParameterivNV");
1264     glGetCombinerOutputParameterfvNV = (glGetCombinerOutputParameterfvNVPROC) lglGetProcAddress("glGetCombinerOutputParameterfvNV");
1265     glGetCombinerOutputParameterivNV = (glGetCombinerOutputParameterivNVPROC) lglGetProcAddress("glGetCombinerOutputParameterivNV");
1266     glGetFinalCombinerInputParameterfvNV = (glGetFinalCombinerInputParameterfvNVPROC) lglGetProcAddress("glGetFinalCombinerInputParameterfvNV");
1267     glGetFinalCombinerInputParameterivNV = (glGetFinalCombinerInputParameterivNVPROC) lglGetProcAddress("glGetFinalCombinerInputParameterivNV");
1268 }
1269
1270 void InitEXTPointParameters()
1271 {
1272     if (!SupportedExtensions.EXT_point_parameters)
1273         return;
1274     glPointParameterfEXT = (glPointParameterfEXTPROC) lglGetProcAddress("glPointParameterfEXT");
1275     glPointParameterfvEXT = (glPointParameterfvEXTPROC) lglGetProcAddress("glPointParameterfvEXT");
1276 }
1277
1278 void InitNVVertexArrayRange()
1279 {
1280     if (!SupportedExtensions.NV_vertex_array_range)
1281         return;
1282     glFlushVertexArrayRangeNV = (glFlushVertexArrayRangeNVPROC) lglGetProcAddress("glFlushVertexArrayRangeNV");
1283     glVertexArrayRangeNV = (glVertexArrayRangeNVPROC) lglGetProcAddress("glVertexArrayRangeNV");
1284 #ifdef WIN32
1285     wglAllocateMemoryNV = (wglAllocateMemoryNVPROC) lglGetProcAddress("wglAllocateMemoryNV");
1286     wglFreeMemoryNV = (wglFreeMemoryNVPROC) lglGetProcAddress("wglFreeMemoryNV");
1287 #endif /* WIN32 */
1288 }
1289
1290 void InitEXTFogCoord()
1291 {
1292     if (!SupportedExtensions.EXT_fog_coord)
1293         return;
1294     glFogCoordfEXT = (glFogCoordfEXTPROC) lglGetProcAddress("glFogCoordfEXT");
1295     glFogCoordfvEXT = (glFogCoordfvEXTPROC) lglGetProcAddress("glFogCoordfvEXT");
1296     glFogCoorddEXT = (glFogCoorddEXTPROC) lglGetProcAddress("glFogCoorddEXT");
1297     glFogCoorddvEXT = (glFogCoorddvEXTPROC) lglGetProcAddress("glFogCoorddvEXT");
1298     glFogCoordPointerEXT = (glFogCoordPointerEXTPROC) lglGetProcAddress("glFogCoordPointerEXT");
1299 }
1300
1301 void InitEXTSecondaryColor()
1302 {
1303     if (!SupportedExtensions.EXT_secondary_color)
1304         return;
1305     glSecondaryColor3bEXT = (glSecondaryColor3bEXTPROC) lglGetProcAddress("glSecondaryColor3bEXT");
1306     glSecondaryColor3bvEXT = (glSecondaryColor3bvEXTPROC) lglGetProcAddress("glSecondaryColor3bvEXT");
1307     glSecondaryColor3dEXT = (glSecondaryColor3dEXTPROC) lglGetProcAddress("glSecondaryColor3dEXT");
1308     glSecondaryColor3dvEXT = (glSecondaryColor3dvEXTPROC) lglGetProcAddress("glSecondaryColor3dvEXT");
1309     glSecondaryColor3fEXT = (glSecondaryColor3fEXTPROC) lglGetProcAddress("glSecondaryColor3fEXT");
1310     glSecondaryColor3fvEXT = (glSecondaryColor3fvEXTPROC) lglGetProcAddress("glSecondaryColor3fvEXT");
1311     glSecondaryColor3iEXT = (glSecondaryColor3iEXTPROC) lglGetProcAddress("glSecondaryColor3iEXT");
1312     glSecondaryColor3ivEXT = (glSecondaryColor3ivEXTPROC) lglGetProcAddress("glSecondaryColor3ivEXT");
1313     glSecondaryColor3sEXT = (glSecondaryColor3sEXTPROC) lglGetProcAddress("glSecondaryColor3sEXT");
1314     glSecondaryColor3svEXT = (glSecondaryColor3svEXTPROC) lglGetProcAddress("glSecondaryColor3svEXT");
1315     glSecondaryColor3ubEXT = (glSecondaryColor3ubEXTPROC) lglGetProcAddress("glSecondaryColor3ubEXT");
1316     glSecondaryColor3ubvEXT = (glSecondaryColor3ubvEXTPROC) lglGetProcAddress("glSecondaryColor3ubvEXT");
1317     glSecondaryColor3uiEXT = (glSecondaryColor3uiEXTPROC) lglGetProcAddress("glSecondaryColor3uiEXT");
1318     glSecondaryColor3uivEXT = (glSecondaryColor3uivEXTPROC) lglGetProcAddress("glSecondaryColor3uivEXT");
1319     glSecondaryColor3usEXT = (glSecondaryColor3usEXTPROC) lglGetProcAddress("glSecondaryColor3usEXT");
1320     glSecondaryColor3usvEXT = (glSecondaryColor3usvEXTPROC) lglGetProcAddress("glSecondaryColor3usvEXT");
1321     glSecondaryColorPointerEXT = (glSecondaryColorPointerEXTPROC) lglGetProcAddress("glSecondaryColorPointerEXT");
1322 }
1323
1324 void InitEXTCompiledVertexArray()
1325 {
1326     if (!SupportedExtensions.EXT_compiled_vertex_array)
1327         return;
1328     glLockArraysEXT = (glLockArraysEXTPROC) lglGetProcAddress("glLockArraysEXT");
1329     glUnlockArraysEXT = (glUnlockArraysEXTPROC) lglGetProcAddress("glUnlockArraysEXT");
1330 }
1331
1332 void InitARBTransposeMatrix()
1333 {
1334     if (!SupportedExtensions.ARB_transpose_matrix)
1335         return;
1336     glLoadTransposeMatrixfARB = (glLoadTransposeMatrixfPROC) lglGetProcAddress("glLoadTransposeMatrixfARB");
1337     glLoadTransposeMatrixdARB = (glLoadTransposeMatrixdPROC) lglGetProcAddress("glLoadTransposeMatrixdARB");
1338     glMultTransposeMatrixfARB = (glMultTransposeMatrixfPROC) lglGetProcAddress("glMultTransposeMatrixfARB");
1339     glMultTransposeMatrixdARB = (glMultTransposeMatrixdPROC) lglGetProcAddress("glMultTransposeMatrixdARB");
1340 }
1341
1342 void InitARBMultitexture()
1343 {
1344     if (!SupportedExtensions.ARB_multitexture)
1345         return;
1346 #ifdef WIN32
1347     glActiveTextureARB = (glActiveTexturePROC) lglGetProcAddress("glActiveTextureARB");
1348     glClientActiveTextureARB = (glClientActiveTexturePROC) lglGetProcAddress("glClientActiveTextureARB");
1349
1350     glMultiTexCoord1dARB = (glMultiTexCoord1dPROC) lglGetProcAddress("glMultiTexCoord1dARB");
1351     glMultiTexCoord1dvARB = (glMultiTexCoord1dvPROC) lglGetProcAddress("glMultiTexCoord1dvARB");
1352     glMultiTexCoord1fARB = (glMultiTexCoord1fPROC) lglGetProcAddress("glMultiTexCoord1fARB");
1353     glMultiTexCoord1fvARB = (glMultiTexCoord1fvPROC) lglGetProcAddress("glMultiTexCoord1fvARB");
1354     glMultiTexCoord1iARB = (glMultiTexCoord1iPROC) lglGetProcAddress("glMultiTexCoord1iARB");
1355     glMultiTexCoord1ivARB = (glMultiTexCoord1ivPROC) lglGetProcAddress("glMultiTexCoord1ivARB");
1356     glMultiTexCoord1sARB = (glMultiTexCoord1sPROC) lglGetProcAddress("glMultiTexCoord1sARB");
1357     glMultiTexCoord1svARB = (glMultiTexCoord1svPROC) lglGetProcAddress("glMultiTexCoord1svARB");
1358
1359     glMultiTexCoord2dARB = (glMultiTexCoord2dPROC) lglGetProcAddress("glMultiTexCoord2dARB");
1360     glMultiTexCoord2dvARB = (glMultiTexCoord2dvPROC) lglGetProcAddress("glMultiTexCoord2dvARB");
1361     glMultiTexCoord2fARB = (glMultiTexCoord2fPROC) lglGetProcAddress("glMultiTexCoord2fARB");
1362     glMultiTexCoord2fvARB = (glMultiTexCoord2fvPROC) lglGetProcAddress("glMultiTexCoord2fvARB");
1363     glMultiTexCoord2iARB = (glMultiTexCoord2iPROC) lglGetProcAddress("glMultiTexCoord2iARB");
1364     glMultiTexCoord2ivARB = (glMultiTexCoord2ivPROC) lglGetProcAddress("glMultiTexCoord2ivARB");
1365     glMultiTexCoord2sARB = (glMultiTexCoord2sPROC) lglGetProcAddress("glMultiTexCoord2sARB");
1366     glMultiTexCoord2svARB = (glMultiTexCoord2svPROC) lglGetProcAddress("glMultiTexCoord2svARB");
1367
1368     glMultiTexCoord3dARB = (glMultiTexCoord3dPROC) lglGetProcAddress("glMultiTexCoord3dARB");
1369     glMultiTexCoord3dvARB = (glMultiTexCoord3dvPROC) lglGetProcAddress("glMultiTexCoord3dvARB");
1370     glMultiTexCoord3fARB = (glMultiTexCoord3fPROC) lglGetProcAddress("glMultiTexCoord3fARB");
1371     glMultiTexCoord3fvARB = (glMultiTexCoord3fvPROC) lglGetProcAddress("glMultiTexCoord3fvARB");
1372     glMultiTexCoord3iARB = (glMultiTexCoord3iPROC) lglGetProcAddress("glMultiTexCoord3iARB");
1373     glMultiTexCoord3ivARB = (glMultiTexCoord3ivPROC) lglGetProcAddress("glMultiTexCoord3ivARB");
1374     glMultiTexCoord3sARB = (glMultiTexCoord3sPROC) lglGetProcAddress("glMultiTexCoord3sARB");
1375     glMultiTexCoord3svARB = (glMultiTexCoord3svPROC) lglGetProcAddress("glMultiTexCoord3svARB");
1376
1377     glMultiTexCoord4dARB = (glMultiTexCoord4dPROC) lglGetProcAddress("glMultiTexCoord4dARB");
1378     glMultiTexCoord4dvARB = (glMultiTexCoord4dvPROC) lglGetProcAddress("glMultiTexCoord4dvARB");
1379     glMultiTexCoord4fARB = (glMultiTexCoord4fPROC) lglGetProcAddress("glMultiTexCoord4fARB");
1380     glMultiTexCoord4fvARB = (glMultiTexCoord4fvPROC) lglGetProcAddress("glMultiTexCoord4fvARB");
1381     glMultiTexCoord4iARB = (glMultiTexCoord4iPROC) lglGetProcAddress("glMultiTexCoord4iARB");
1382     glMultiTexCoord4ivARB = (glMultiTexCoord4ivPROC) lglGetProcAddress("glMultiTexCoord4ivARB");
1383     glMultiTexCoord4sARB = (glMultiTexCoord4sPROC) lglGetProcAddress("glMultiTexCoord4sARB");
1384     glMultiTexCoord4svARB = (glMultiTexCoord4svPROC) lglGetProcAddress("glMultiTexCoord4svARB");
1385 #endif
1386 }
1387
1388 void InitOpenGL1_2()
1389 {
1390     char *s = (char*) glGetString(GL_VERSION);
1391     if (!s)
1392         return;
1393     s = strstr(s, "1.");
1394     if (s == NULL) return;
1395     if (s[2] < '2') return;
1396 #ifdef WIN32
1397     glTexImage3D = (glTexImage3DPROC) lglGetProcAddress("glTexImage3D");
1398     glTexSubImage3D = (glTexSubImage3DPROC) lglGetProcAddress("glTexSubImage3D");
1399     glCopyTexSubImage3D = (glCopyTexSubImage3DPROC) lglGetProcAddress("glCopyTexSubImage3D");
1400     glDrawRangeElements = (glDrawRangeElementsPROC) lglGetProcAddress("glDrawRangeElements");
1401 #endif
1402 }
1403
1404 void InitARBImaging()
1405 {
1406     if (!SupportedExtensions.ARB_imaging)
1407         return;
1408     glBlendColor = (glBlendColorPROC) lglGetProcAddress("glBlendColor");
1409     glBlendEquation = (glBlendEquationPROC) lglGetProcAddress("glBlendEquation");
1410     glColorTable = (glColorTablePROC) lglGetProcAddress("glColorTable");
1411     glColorTableParameterfv = (glColorTableParameterfvPROC) lglGetProcAddress("glColorTableParameterfv");
1412     glColorTableParameteriv = (glColorTableParameterivPROC) lglGetProcAddress("glColorTableParameteriv");
1413     glCopyColorTable = (glCopyColorTablePROC) lglGetProcAddress("glCopyColorTable");
1414     glGetColorTable = (glGetColorTablePROC) lglGetProcAddress("glGetColorTable");
1415     glGetColorTableParameterfv = (glGetColorTableParameterfvPROC) lglGetProcAddress("glGetColorTableParameterfv");
1416     glGetColorTableParameteriv = (glGetColorTableParameterivPROC) lglGetProcAddress("glGetColorTableParameteriv");
1417     glColorSubTable = (glColorSubTablePROC) lglGetProcAddress("glColorSubTable");
1418     glCopyColorSubTable = (glCopyColorSubTablePROC) lglGetProcAddress("glCopyColorSubTable");
1419     glConvolutionFilter1D = (glConvolutionFilter1DPROC) lglGetProcAddress("glConvolutionFilter1D");
1420     glConvolutionFilter2D = (glConvolutionFilter2DPROC) lglGetProcAddress("glConvolutionFilter2D");
1421     glConvolutionParameterf = (glConvolutionParameterfPROC) lglGetProcAddress("glConvolutionParameterf");
1422     glConvolutionParameterfv = (glConvolutionParameterfvPROC) lglGetProcAddress("glConvolutionParameterfv");
1423     glConvolutionParameteri = (glConvolutionParameteriPROC) lglGetProcAddress("glConvolutionParameteri");
1424     glConvolutionParameteriv = (glConvolutionParameterivPROC) lglGetProcAddress("glConvolutionParameteriv");
1425     glCopyConvolutionFilter1D = (glCopyConvolutionFilter1DPROC) lglGetProcAddress("glCopyConvolutionFilter1D");
1426     glCopyConvolutionFilter2D = (glCopyConvolutionFilter2DPROC) lglGetProcAddress("glCopyConvolutionFilter2D");
1427     glGetConvolutionFilter = (glGetConvolutionFilterPROC) lglGetProcAddress("glGetConvolutionFilter");
1428     glGetConvolutionParameterfv = (glGetConvolutionParameterfvPROC) lglGetProcAddress("glGetConvolutionParameterfv");
1429     glGetConvolutionParameteriv = (glGetConvolutionParameterivPROC) lglGetProcAddress("glGetConvolutionParameteriv");
1430     glGetSeparableFilter = (glGetSeparableFilterPROC) lglGetProcAddress("glGetSeparableFilter");
1431     glSeparableFilter2D = (glSeparableFilter2DPROC) lglGetProcAddress("glSeparableFilter2D");
1432     glGetHistogram = (glGetHistogramPROC) lglGetProcAddress("glGetHistogram");
1433     glGetHistogramParameterfv = (glGetHistogramParameterfvPROC) lglGetProcAddress("glGetHistogramParameterfv");
1434     glGetHistogramParameteriv = (glGetHistogramParameterivPROC) lglGetProcAddress("glGetHistogramParameteriv");
1435     glGetMinmax = (glGetMinmaxPROC) lglGetProcAddress("glGetMinmax");
1436     glGetMinmaxParameterfv = (glGetMinmaxParameterfvPROC) lglGetProcAddress("glGetMinmaxParameterfv");
1437     glGetMinmaxParameteriv = (glGetMinmaxParameterivPROC) lglGetProcAddress("glGetMinmaxParameteriv");
1438     glHistogram = (glHistogramPROC) lglGetProcAddress("glHistogram");
1439     glMinmax = (glMinmaxPROC) lglGetProcAddress("glMinmax");
1440     glResetHistogram = (glResetHistogramPROC) lglGetProcAddress("glResetHistogram");
1441     glResetMinmax = (glResetMinmaxPROC) lglGetProcAddress("glResetMinmax");
1442 }
1443
1444 void InitOpenGL1_3()
1445 {
1446     char *s = (char*) glGetString(GL_VERSION);
1447     if (!s) return;
1448     s = strstr(s, "1.");
1449     if (s == NULL) return;
1450     if (s[2] < '3') return;
1451 #ifdef WIN32
1452     glActiveTexture = (glActiveTexturePROC) lglGetProcAddress("glActiveTexture");
1453     glClientActiveTexture = (glClientActiveTexturePROC) lglGetProcAddress("glClientActiveTexture");
1454
1455     glMultiTexCoord1d = (glMultiTexCoord1dPROC) lglGetProcAddress("glMultiTexCoord1d");
1456     glMultiTexCoord1dv = (glMultiTexCoord1dvPROC) lglGetProcAddress("glMultiTexCoord1dv");
1457     glMultiTexCoord1f = (glMultiTexCoord1fPROC) lglGetProcAddress("glMultiTexCoord1f");
1458     glMultiTexCoord1fv = (glMultiTexCoord1fvPROC) lglGetProcAddress("glMultiTexCoord1fv");
1459     glMultiTexCoord1i = (glMultiTexCoord1iPROC) lglGetProcAddress("glMultiTexCoord1i");
1460     glMultiTexCoord1iv = (glMultiTexCoord1ivPROC) lglGetProcAddress("glMultiTexCoord1iv");
1461     glMultiTexCoord1s = (glMultiTexCoord1sPROC) lglGetProcAddress("glMultiTexCoord1s");
1462     glMultiTexCoord1sv = (glMultiTexCoord1svPROC) lglGetProcAddress("glMultiTexCoord1sv");
1463
1464     glMultiTexCoord2d = (glMultiTexCoord2dPROC) lglGetProcAddress("glMultiTexCoord2d");
1465     glMultiTexCoord2dv = (glMultiTexCoord2dvPROC) lglGetProcAddress("glMultiTexCoord2dv");
1466     glMultiTexCoord2f = (glMultiTexCoord2fPROC) lglGetProcAddress("glMultiTexCoord2f");
1467     glMultiTexCoord2fv = (glMultiTexCoord2fvPROC) lglGetProcAddress("glMultiTexCoord2fv");
1468     glMultiTexCoord2i = (glMultiTexCoord2iPROC) lglGetProcAddress("glMultiTexCoord2i");
1469     glMultiTexCoord2iv = (glMultiTexCoord2ivPROC) lglGetProcAddress("glMultiTexCoord2iv");
1470     glMultiTexCoord2s = (glMultiTexCoord2sPROC) lglGetProcAddress("glMultiTexCoord2s");
1471     glMultiTexCoord2sv = (glMultiTexCoord2svPROC) lglGetProcAddress("glMultiTexCoord2sv");
1472
1473     glMultiTexCoord3d = (glMultiTexCoord3dPROC) lglGetProcAddress("glMultiTexCoord3d");
1474     glMultiTexCoord3dv = (glMultiTexCoord3dvPROC) lglGetProcAddress("glMultiTexCoord3dv");
1475     glMultiTexCoord3f = (glMultiTexCoord3fPROC) lglGetProcAddress("glMultiTexCoord3f");
1476     glMultiTexCoord3fv = (glMultiTexCoord3fvPROC) lglGetProcAddress("glMultiTexCoord3fv");
1477     glMultiTexCoord3i = (glMultiTexCoord3iPROC) lglGetProcAddress("glMultiTexCoord3i");
1478     glMultiTexCoord3iv = (glMultiTexCoord3ivPROC) lglGetProcAddress("glMultiTexCoord3iv");
1479     glMultiTexCoord3s = (glMultiTexCoord3sPROC) lglGetProcAddress("glMultiTexCoord3s");
1480     glMultiTexCoord3sv = (glMultiTexCoord3svPROC) lglGetProcAddress("glMultiTexCoord3sv");
1481
1482     glMultiTexCoord4d = (glMultiTexCoord4dPROC) lglGetProcAddress("glMultiTexCoord4d");
1483     glMultiTexCoord4dv = (glMultiTexCoord4dvPROC) lglGetProcAddress("glMultiTexCoord4dv");
1484     glMultiTexCoord4f = (glMultiTexCoord4fPROC) lglGetProcAddress("glMultiTexCoord4f");
1485     glMultiTexCoord4fv = (glMultiTexCoord4fvPROC) lglGetProcAddress("glMultiTexCoord4fv");
1486     glMultiTexCoord4i = (glMultiTexCoord4iPROC) lglGetProcAddress("glMultiTexCoord4i");
1487     glMultiTexCoord4iv = (glMultiTexCoord4ivPROC) lglGetProcAddress("glMultiTexCoord4iv");
1488     glMultiTexCoord4s = (glMultiTexCoord4sPROC) lglGetProcAddress("glMultiTexCoord4s");
1489     glMultiTexCoord4sv = (glMultiTexCoord4svPROC) lglGetProcAddress("glMultiTexCoord4sv");
1490
1491     glLoadTransposeMatrixf = (glLoadTransposeMatrixfPROC) lglGetProcAddress("glLoadTransposeMatrixf");
1492     glLoadTransposeMatrixd = (glLoadTransposeMatrixdPROC) lglGetProcAddress("glLoadTransposeMatrixd");
1493     glMultTransposeMatrixf = (glMultTransposeMatrixfPROC) lglGetProcAddress("glMultTransposeMatrixf");
1494     glMultTransposeMatrixd = (glMultTransposeMatrixdPROC) lglGetProcAddress("glMultTransposeMatrixd");
1495     glCompressedTexImage3D = (glCompressedTexImage3DPROC) lglGetProcAddress("glCompressedTexImage3D");
1496     glCompressedTexImage2D = (glCompressedTexImage2DPROC) lglGetProcAddress("glCompressedTexImage2D");
1497     glCompressedTexImage1D = (glCompressedTexImage1DPROC) lglGetProcAddress("glCompressedTexImage1D");
1498     glCompressedTexSubImage3D = (glCompressedTexSubImage3DPROC) lglGetProcAddress("glCompressedTexSubImage3D");
1499     glCompressedTexSubImage2D = (glCompressedTexSubImage2DPROC) lglGetProcAddress("glCompressedTexSubImage2D");
1500     glCompressedTexSubImage1D = (glCompressedTexSubImage1DPROC) lglGetProcAddress("glCompressedTexSubImage1D");
1501     glGetCompressedTexImage = (glGetCompressedTexImagePROC) lglGetProcAddress("glGetCompressedTexImage");
1502
1503     glSampleCoverage = (glSampleCoveragePROC) lglGetProcAddress("glSampleCoverage");
1504 #endif
1505 }
1506
1507 #endif /* __PROTOTYPE__ */
1508
1509 void InitSupportedExtensions()
1510 {
1511     char *s = (char*) glGetString(GL_VERSION);
1512     if (!s)
1513         return;
1514     s = strstr(s, "1.");
1515     if (s == NULL)
1516     {
1517         SupportedExtensions.OpenGL12 = 0;
1518         SupportedExtensions.OpenGL13 = 0;
1519     }
1520     if (s[2] < '2')
1521     {
1522         SupportedExtensions.OpenGL12 = 0;
1523         SupportedExtensions.OpenGL13 = 0;
1524     }
1525     if (s[2] <= '2')
1526     {
1527         SupportedExtensions.OpenGL12 = 1;
1528         SupportedExtensions.OpenGL13 = 0;
1529     }
1530     if (s[2] <= '3')
1531     {
1532         SupportedExtensions.OpenGL12 = 1;
1533         SupportedExtensions.OpenGL13 = 1;
1534     }
1535     SupportedExtensions.ARB_imaging = QueryExtension("GL_ARB_imaging");
1536     SupportedExtensions.ARB_matrix_palette = QueryExtension("GL_ARB_matrix_palette");
1537     SupportedExtensions.ARB_multisample = QueryExtension("GL_ARB_multisample");
1538     SupportedExtensions.ARB_multitexture = QueryExtension("GL_ARB_multitexture");
1539     SupportedExtensions.ARB_point_parameters = QueryExtension("GL_ARB_point_parameters");
1540     SupportedExtensions.ARB_texture_border_clamp = QueryExtension("GL_ARB_texture_border_clamp");
1541     SupportedExtensions.ARB_texture_compression = QueryExtension("GL_ARB_texture_compression");
1542     SupportedExtensions.ARB_texture_cube_map = QueryExtension("GL_ARB_texture_cube_map");
1543     SupportedExtensions.ARB_texture_env_add = QueryExtension("GL_ARB_texture_env_add");
1544     SupportedExtensions.ARB_texture_env_combine = QueryExtension("GL_ARB_texture_env_combine");
1545     SupportedExtensions.ARB_texture_env_crossbar = QueryExtension("GL_ARB_texture_env_crossbar");
1546     SupportedExtensions.ARB_texture_env_dot3 = QueryExtension("GL_ARB_texture_env_dot3");
1547     SupportedExtensions.ARB_transpose_matrix = QueryExtension("GL_ARB_transpose_matrix");
1548     SupportedExtensions.ARB_vertex_blend = QueryExtension("GL_ARB_vertex_blend");
1549     SupportedExtensions.ATI_element_array = QueryExtension("GL_ATI_element_array");
1550     SupportedExtensions.ATI_envmap_bumpmap = QueryExtension("GL_ATI_envmap_bumpmap");
1551     SupportedExtensions.ATI_fragment_shader = QueryExtension("GL_ATI_fragment_shader");
1552     SupportedExtensions.ATI_pn_triangles = QueryExtension("GL_ATI_pn_triangles");
1553     SupportedExtensions.ATI_texture_mirror_once = QueryExtension("GL_ATI_texture_mirror_once");
1554     SupportedExtensions.ATI_vertex_array_object = QueryExtension("GL_ATI_vertex_array_object");
1555     SupportedExtensions.ATI_vertex_streams = QueryExtension("GL_ATI_vertex_streams");
1556     SupportedExtensions.ATIX_point_sprites = QueryExtension("GL_ATIX_point_sprites");
1557     SupportedExtensions.ATIX_texture_env_route = QueryExtension("GL_ATIX_texture_env_route");
1558     SupportedExtensions.EXT_abgr = QueryExtension("GL_EXT_abgr");
1559     SupportedExtensions.EXT_compiled_vertex_array = QueryExtension("GL_EXT_compiled_vertex_array");
1560     SupportedExtensions.EXT_fog_coord = QueryExtension("GL_EXT_fog_coord");
1561     SupportedExtensions.EXT_multi_draw_arrays = QueryExtension("GL_EXT_multi_draw_arrays");
1562     SupportedExtensions.EXT_point_parameters = QueryExtension("GL_EXT_point_parameters");
1563     SupportedExtensions.EXT_secondary_color = QueryExtension("GL_EXT_secondary_color");
1564     SupportedExtensions.EXT_stencil_wrap = QueryExtension("GL_EXT_stencil_wrap");
1565     SupportedExtensions.EXT_texture_filter_anisotropic = QueryExtension("GL_EXT_texture_filter_anisotropic");
1566     SupportedExtensions.EXT_texture_lod_bias = QueryExtension("GL_EXT_texture_lod_bias");
1567     SupportedExtensions.EXT_vertex_shader = QueryExtension("GL_EXT_vertex_shader");
1568     SupportedExtensions.EXT_vertex_weighting = QueryExtension("GL_EXT_vertex_weighting");
1569     SupportedExtensions.HP_occlusion_test = QueryExtension("GL_HP_occlusion_test");
1570     SupportedExtensions.NV_blend_square = QueryExtension("GL_NV_blend_square");
1571     SupportedExtensions.NV_copy_depth_to_color = QueryExtension("GL_NV_copy_depth_to_color");
1572     SupportedExtensions.NV_depth_clamp = QueryExtension("GL_NV_depth_clamp");
1573     SupportedExtensions.NV_evaluators = QueryExtension("GL_NV_evaluators");
1574     SupportedExtensions.NV_fence = QueryExtension("GL_NV_fence");
1575     SupportedExtensions.NV_fog_distance = QueryExtension("GL_NV_fog_distance");
1576     SupportedExtensions.NV_light_max_exponent = QueryExtension("GL_NV_light_max_exponent");
1577     SupportedExtensions.NV_occlusion_query = QueryExtension("GL_NV_occlusion_query");
1578     SupportedExtensions.NV_packed_depth_stencil = QueryExtension("GL_NV_packed_depth_stencil");
1579     SupportedExtensions.NV_point_sprite = QueryExtension("GL_NV_point_sprite");
1580     SupportedExtensions.NV_register_combiners = QueryExtension("GL_NV_register_combiners");
1581     SupportedExtensions.NV_register_combiners2 = QueryExtension("GL_NV_register_combiners2");
1582     SupportedExtensions.NV_texgen_reflection = QueryExtension("GL_NV_texgen_reflection");
1583     SupportedExtensions.NV_texture_env_combine4 = QueryExtension("GL_NV_texture_env_combine4");
1584     SupportedExtensions.NV_texture_rectangle = QueryExtension("GL_NV_texture_rectangle");
1585     SupportedExtensions.NV_texture_shader = QueryExtension("GL_NV_texture_shader");
1586     SupportedExtensions.NV_texture_shader2 = QueryExtension("GL_NV_texture_shader2");
1587     SupportedExtensions.NV_texture_shader3 = QueryExtension("GL_NV_texture_shader3");
1588     SupportedExtensions.NV_vertex_array_range = QueryExtension("GL_NV_vertex_array_range");
1589     SupportedExtensions.NV_vertex_array_range2 = QueryExtension("GL_NV_vertex_array_range2");
1590     SupportedExtensions.NV_vertex_program = QueryExtension("GL_NV_vertex_program");
1591     SupportedExtensions.NV_vertex_program1_1 = QueryExtension("GL_NV_vertex_program1_1");
1592     SupportedExtensions.SGIS_generate_mipmap = QueryExtension("GL_SGIS_generate_mipmap");
1593     SupportedExtensions.SGIX_depth_texture = QueryExtension("GL_SGIX_depth_texture");
1594     SupportedExtensions.SGIX_shadow = QueryExtension("GL_SGIX_shadow");
1595     SupportedExtensions.ARB_texture_mirrored_repeat = QueryExtension("GL_ARB_texture_mirrored_repeat");
1596     SupportedExtensions.ARB_depth_texture = QueryExtension("GL_ARB_depth_texture");
1597     SupportedExtensions.ARB_shadow = QueryExtension("GL_ARB_shadow");
1598     SupportedExtensions.ARB_shadow_ambient = QueryExtension("GL_ARB_shadow_ambient");
1599     SupportedExtensions.ARB_window_pos = QueryExtension("GL_ARB_window_pos");
1600     SupportedExtensions.EXT_shadow_funcs = QueryExtension("GL_EXT_shadow_funcs");
1601 }
1602
1603 /* init the extensions and load all the functions */
1604 int glInitialize()
1605 {
1606     error = 0;
1607     InitSupportedExtensions();
1608
1609     /* first load the etensions */
1610     InitARBImaging();
1611     InitARBTransposeMatrix();
1612     InitARBMultisample();
1613     InitEXTCompiledVertexArray();
1614     InitEXTSecondaryColor();
1615     InitEXTFogCoord();
1616     InitNVVertexArrayRange();
1617     InitEXTPointParameters();
1618     InitNVRegisterCombiners();
1619     InitEXTVertexWeighting();
1620     InitNVVertexProgram();
1621     InitNVFence();
1622     InitNVRegisterCombiners2();
1623     InitATIPNTriangles();
1624     InitARBPointParameters();
1625     InitARBVertexBlend();
1626     InitEXTMultiDrawArrays();
1627     InitARBMatrixPalette();
1628     InitEXTVertexShader();
1629     InitATIEnvmapBumpmap();
1630     InitATIFragmentShader();
1631     InitATIElementArray();
1632     InitATIVertexStreams();
1633     InitATIVertexArrayObject();
1634     InitNVOcclusionQuery();
1635     InitNVPointSprite();
1636     InitARBWindowPos();
1637
1638 #ifdef WIN32
1639     InitARBMultitexture();
1640     /* now load core opengl */
1641     InitOpenGL1_2();
1642     InitOpenGL1_3();
1643     wglInitialize(_dc);
1644 #endif
1645     return error;
1646 }
1647