radiant/qgl.cpp

   1 /*
   2 Copyright (C) 1999-2006 Id Software, Inc. and contributors.
   3 For a list of contributors, see the accompanying CONTRIBUTORS file.
   4
   5 This file is part of GtkRadiant.
   6
   7 GtkRadiant is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 2 of the License, or
  10 (at your option) any later version.
  11
  12 GtkRadiant is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GtkRadiant; if not, write to the Free Software
  19 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  20 */
  21
  22
  23 #include "qgl.h"
  24
  25 #include "debugging/debugging.h"
  26
  27 #include <stdio.h>
  28 #include <stdlib.h>
  29 #include <string.h>
  30
  31 #if defined(_WIN32)
  32 #define WINGDIAPI __declspec(dllimport)
  33 #define APIENTRY __stdcall
  34 #endif
  35
  36 #include <GL/gl.h>
  37
  38 #if defined(_WIN32)
  39 #undef WINGDIAPI
  40 #undef APIENTRY
  41 #endif
  42
  43 #include "igl.h"
  44
  45
  46
  47
  48 #if defined(_WIN32)
  49
  50 #include <wtypes.h>
  51
  52 PROC  ( WINAPI * qwglGetProcAddress)(LPCSTR);
  53
  54 #elif defined (XWINDOWS)
  55
  56 #include <GL/glx.h>
  57 #include <dlfcn.h>
  58 #include <gdk/gdkx.h>
  59
  60 Bool         (*qglXQueryExtension)( Display *dpy, int *errorb, int *event );
  61 void*        (*qglXGetProcAddressARB) (const GLubyte *procName);
  62 typedef void* (*glXGetProcAddressARBProc) (const GLubyte *procName);
  63
  64 #else
  65 #error "unsupported platform"
  66 #endif
  67
  68
  69 void QGL_Shutdown(OpenGLBinding& table)
  70 {
  71   globalOutputStream() << "Shutting down OpenGL module...";
  72
  73 #if defined(WIN32)
  74   qwglGetProcAddress           = 0;
  75 #elif defined(XWINDOWS)
  76   qglXQueryExtension           = glXQueryExtension;
  77   qglXGetProcAddressARB        = 0;
  78 #else
  79 #error "unsupported platform"
  80 #endif
  81
  82   globalOutputStream() << "Done.\n";
  83 }
  84
  85
  86 typedef struct glu_error_struct
  87 {
  88     GLenum     errnum;
  89     const char *errstr;
  90 } GLU_ERROR_STRUCT;
  91
  92 GLU_ERROR_STRUCT glu_errlist[] = {
  93   {GL_NO_ERROR, "GL_NO_ERROR - no error"},
  94   {GL_INVALID_ENUM, "GL_INVALID_ENUM - An unacceptable value is specified for an enumerated argument."},
  95   {GL_INVALID_VALUE, "GL_INVALID_VALUE - A numeric argument is out of range."},
  96   {GL_INVALID_OPERATION, "GL_INVALID_OPERATION - The specified operation is not allowed in the current state."},
  97   {GL_STACK_OVERFLOW, "GL_STACK_OVERFLOW - Function would cause a stack overflow."},
  98   {GL_STACK_UNDERFLOW, "GL_STACK_UNDERFLOW - Function would cause a stack underflow."},
  99   {GL_OUT_OF_MEMORY, "GL_OUT_OF_MEMORY - There is not enough memory left to execute the function."},
 100   {0, 0}
 101 };
 102
 103 const GLubyte* qgluErrorString(GLenum errCode )
 104 {
 105   int search = 0;
 106   for (search = 0; glu_errlist[search].errstr; search++)
 107   {
 108     if (errCode == glu_errlist[search].errnum)
 109       return (const GLubyte *)glu_errlist[search].errstr;
 110   } //end for
 111   return (const GLubyte *)"Unknown error";
 112 }
 113
 114
 115 void glInvalidFunction()
 116 {
 117   ERROR_MESSAGE("calling an invalid OpenGL function");
 118 }
 119
 120 #define EXTENSIONS_ENABLED 1
 121
 122 bool QGL_ExtensionSupported(const char* extension)
 123 {
 124 #if EXTENSIONS_ENABLED
 125   const GLubyte *extensions = 0;
 126   const GLubyte *start;
 127   GLubyte *where, *terminator;
 128
 129   // Extension names should not have spaces.
 130   where = (GLubyte *) strchr (extension, ' ');
 131   if (where || *extension == '\0')
 132     return false;
 133
 134   extensions = GlobalOpenGL().m_glGetString (GL_EXTENSIONS);
 135 #ifndef __APPLE__
 136   if (!extensions)
 137     return false;
 138 #endif
 139
 140   // It takes a bit of care to be fool-proof about parsing the
 141   // OpenGL extensions string. Don't be fooled by sub-strings, etc.
 142   for (start = extensions; ;)
 143   {
 144     where = (GLubyte *) strstr ((const char *) start, extension);
 145     if (!where)
 146       break;
 147
 148     terminator = where + strlen (extension);
 149     if (where == start || *(where - 1) == ' ')
 150       if (*terminator == ' ' || *terminator == '\0')
 151         return true;
 152
 153     start = terminator;
 154   }
 155 #endif
 156
 157   return false;
 158 }
 159
 160 typedef int (QGL_DLLEXPORT *QGLFunctionPointer)();
 161
 162 QGLFunctionPointer QGL_getExtensionFunc(const char* symbol)
 163 {
 164 #if defined(XWINDOWS)
 165   //ASSERT_NOTNULL(qglXGetProcAddressARB);
 166   if (qglXGetProcAddressARB == 0)
 167   {
 168     return reinterpret_cast<QGLFunctionPointer>(glInvalidFunction);
 169   }
 170   else
 171   {
 172     return (QGLFunctionPointer)qglXGetProcAddressARB(reinterpret_cast<const GLubyte*>(symbol));
 173   }
 174 #elif defined(WIN32)
 175   ASSERT_NOTNULL(qwglGetProcAddress);
 176   return qwglGetProcAddress(symbol);
 177 #else
 178 #error "unsupported platform"
 179 #endif
 180 }
 181
 182
 183 template<typename Func>
 184 bool QGL_constructExtensionFunc(Func& func, const char* symbol)
 185 {
 186   func = reinterpret_cast<Func>(QGL_getExtensionFunc(symbol));
 187   return func != 0;
 188 }
 189
 190 template<typename Func>
 191 void QGL_invalidateExtensionFunc(Func& func)
 192 {
 193   func = reinterpret_cast<Func>(glInvalidFunction);
 194 }
 195
 196 void QGL_clear(OpenGLBinding& table)
 197 {
 198   QGL_invalidateExtensionFunc(table.m_glAccum);
 199   QGL_invalidateExtensionFunc(table.m_glAlphaFunc);
 200   QGL_invalidateExtensionFunc(table.m_glAreTexturesResident);
 201   QGL_invalidateExtensionFunc(table.m_glArrayElement);
 202   QGL_invalidateExtensionFunc(table.m_glBegin);
 203   QGL_invalidateExtensionFunc(table.m_glBindTexture);
 204   QGL_invalidateExtensionFunc(table.m_glBitmap);
 205   QGL_invalidateExtensionFunc(table.m_glBlendFunc);
 206   QGL_invalidateExtensionFunc(table.m_glCallList);
 207   QGL_invalidateExtensionFunc(table.m_glCallLists);
 208   QGL_invalidateExtensionFunc(table.m_glClear);
 209   QGL_invalidateExtensionFunc(table.m_glClearAccum);
 210   QGL_invalidateExtensionFunc(table.m_glClearColor);
 211   QGL_invalidateExtensionFunc(table.m_glClearDepth);
 212   QGL_invalidateExtensionFunc(table.m_glClearIndex);
 213   QGL_invalidateExtensionFunc(table.m_glClearStencil);
 214   QGL_invalidateExtensionFunc(table.m_glClipPlane);
 215   QGL_invalidateExtensionFunc(table.m_glColor3b);
 216   QGL_invalidateExtensionFunc(table.m_glColor3bv);
 217   QGL_invalidateExtensionFunc(table.m_glColor3d);
 218   QGL_invalidateExtensionFunc(table.m_glColor3dv);
 219   QGL_invalidateExtensionFunc(table.m_glColor3f);
 220   QGL_invalidateExtensionFunc(table.m_glColor3fv);
 221   QGL_invalidateExtensionFunc(table.m_glColor3i);
 222   QGL_invalidateExtensionFunc(table.m_glColor3iv);
 223   QGL_invalidateExtensionFunc(table.m_glColor3s);
 224   QGL_invalidateExtensionFunc(table.m_glColor3sv);
 225   QGL_invalidateExtensionFunc(table.m_glColor3ub);
 226   QGL_invalidateExtensionFunc(table.m_glColor3ubv);
 227   QGL_invalidateExtensionFunc(table.m_glColor3ui);
 228   QGL_invalidateExtensionFunc(table.m_glColor3uiv);
 229   QGL_invalidateExtensionFunc(table.m_glColor3us);
 230   QGL_invalidateExtensionFunc(table.m_glColor3usv);
 231   QGL_invalidateExtensionFunc(table.m_glColor4b);
 232   QGL_invalidateExtensionFunc(table.m_glColor4bv);
 233   QGL_invalidateExtensionFunc(table.m_glColor4d);
 234   QGL_invalidateExtensionFunc(table.m_glColor4dv);
 235   QGL_invalidateExtensionFunc(table.m_glColor4f);
 236   QGL_invalidateExtensionFunc(table.m_glColor4fv);
 237   QGL_invalidateExtensionFunc(table.m_glColor4i);
 238   QGL_invalidateExtensionFunc(table.m_glColor4iv);
 239   QGL_invalidateExtensionFunc(table.m_glColor4s);
 240   QGL_invalidateExtensionFunc(table.m_glColor4sv);
 241   QGL_invalidateExtensionFunc(table.m_glColor4ub);
 242   QGL_invalidateExtensionFunc(table.m_glColor4ubv);
 243   QGL_invalidateExtensionFunc(table.m_glColor4ui);
 244   QGL_invalidateExtensionFunc(table.m_glColor4uiv);
 245   QGL_invalidateExtensionFunc(table.m_glColor4us);
 246   QGL_invalidateExtensionFunc(table.m_glColor4usv);
 247   QGL_invalidateExtensionFunc(table.m_glColorMask);
 248   QGL_invalidateExtensionFunc(table.m_glColorMaterial);
 249   QGL_invalidateExtensionFunc(table.m_glColorPointer);
 250   QGL_invalidateExtensionFunc(table.m_glCopyPixels);
 251   QGL_invalidateExtensionFunc(table.m_glCopyTexImage1D);
 252   QGL_invalidateExtensionFunc(table.m_glCopyTexImage2D);
 253   QGL_invalidateExtensionFunc(table.m_glCopyTexSubImage1D);
 254   QGL_invalidateExtensionFunc(table.m_glCopyTexSubImage2D);
 255   QGL_invalidateExtensionFunc(table.m_glCullFace);
 256   QGL_invalidateExtensionFunc(table.m_glDeleteLists);
 257   QGL_invalidateExtensionFunc(table.m_glDeleteTextures);
 258   QGL_invalidateExtensionFunc(table.m_glDepthFunc);
 259   QGL_invalidateExtensionFunc(table.m_glDepthMask);
 260   QGL_invalidateExtensionFunc(table.m_glDepthRange);
 261   QGL_invalidateExtensionFunc(table.m_glDisable);
 262   QGL_invalidateExtensionFunc(table.m_glDisableClientState);
 263   QGL_invalidateExtensionFunc(table.m_glDrawArrays);
 264   QGL_invalidateExtensionFunc(table.m_glDrawBuffer);
 265   QGL_invalidateExtensionFunc(table.m_glDrawElements);
 266   QGL_invalidateExtensionFunc(table.m_glDrawPixels);
 267   QGL_invalidateExtensionFunc(table.m_glEdgeFlag);
 268   QGL_invalidateExtensionFunc(table.m_glEdgeFlagPointer);
 269   QGL_invalidateExtensionFunc(table.m_glEdgeFlagv);
 270   QGL_invalidateExtensionFunc(table.m_glEnable);
 271   QGL_invalidateExtensionFunc(table.m_glEnableClientState);
 272   QGL_invalidateExtensionFunc(table.m_glEnd);
 273   QGL_invalidateExtensionFunc(table.m_glEndList);
 274   QGL_invalidateExtensionFunc(table.m_glEvalCoord1d);
 275   QGL_invalidateExtensionFunc(table.m_glEvalCoord1dv);
 276   QGL_invalidateExtensionFunc(table.m_glEvalCoord1f);
 277   QGL_invalidateExtensionFunc(table.m_glEvalCoord1fv);
 278   QGL_invalidateExtensionFunc(table.m_glEvalCoord2d);
 279   QGL_invalidateExtensionFunc(table.m_glEvalCoord2dv);
 280   QGL_invalidateExtensionFunc(table.m_glEvalCoord2f);
 281   QGL_invalidateExtensionFunc(table.m_glEvalCoord2fv);
 282   QGL_invalidateExtensionFunc(table.m_glEvalMesh1);
 283   QGL_invalidateExtensionFunc(table.m_glEvalMesh2);
 284   QGL_invalidateExtensionFunc(table.m_glEvalPoint1);
 285   QGL_invalidateExtensionFunc(table.m_glEvalPoint2);
 286   QGL_invalidateExtensionFunc(table.m_glFeedbackBuffer);
 287   QGL_invalidateExtensionFunc(table.m_glFinish);
 288   QGL_invalidateExtensionFunc(table.m_glFlush);
 289   QGL_invalidateExtensionFunc(table.m_glFogf);
 290   QGL_invalidateExtensionFunc(table.m_glFogfv);
 291   QGL_invalidateExtensionFunc(table.m_glFogi);
 292   QGL_invalidateExtensionFunc(table.m_glFogiv);
 293   QGL_invalidateExtensionFunc(table.m_glFrontFace);
 294   QGL_invalidateExtensionFunc(table.m_glFrustum);
 295   QGL_invalidateExtensionFunc(table.m_glGenLists);
 296   QGL_invalidateExtensionFunc(table.m_glGenTextures);
 297   QGL_invalidateExtensionFunc(table.m_glGetBooleanv);
 298   QGL_invalidateExtensionFunc(table.m_glGetClipPlane);
 299   QGL_invalidateExtensionFunc(table.m_glGetDoublev);
 300   QGL_invalidateExtensionFunc(table.m_glGetError);
 301   QGL_invalidateExtensionFunc(table.m_glGetFloatv);
 302   QGL_invalidateExtensionFunc(table.m_glGetIntegerv);
 303   QGL_invalidateExtensionFunc(table.m_glGetLightfv);
 304   QGL_invalidateExtensionFunc(table.m_glGetLightiv);
 305   QGL_invalidateExtensionFunc(table.m_glGetMapdv);
 306   QGL_invalidateExtensionFunc(table.m_glGetMapfv);
 307   QGL_invalidateExtensionFunc(table.m_glGetMapiv);
 308   QGL_invalidateExtensionFunc(table.m_glGetMaterialfv);
 309   QGL_invalidateExtensionFunc(table.m_glGetMaterialiv);
 310   QGL_invalidateExtensionFunc(table.m_glGetPixelMapfv);
 311   QGL_invalidateExtensionFunc(table.m_glGetPixelMapuiv);
 312   QGL_invalidateExtensionFunc(table.m_glGetPixelMapusv);
 313   QGL_invalidateExtensionFunc(table.m_glGetPointerv);
 314   QGL_invalidateExtensionFunc(table.m_glGetPolygonStipple);
 315   table.m_glGetString = glGetString;
 316   QGL_invalidateExtensionFunc(table.m_glGetTexEnvfv);
 317   QGL_invalidateExtensionFunc(table.m_glGetTexEnviv);
 318   QGL_invalidateExtensionFunc(table.m_glGetTexGendv);
 319   QGL_invalidateExtensionFunc(table.m_glGetTexGenfv);
 320   QGL_invalidateExtensionFunc(table.m_glGetTexGeniv);
 321   QGL_invalidateExtensionFunc(table.m_glGetTexImage);
 322   QGL_invalidateExtensionFunc(table.m_glGetTexLevelParameterfv);
 323   QGL_invalidateExtensionFunc(table.m_glGetTexLevelParameteriv);
 324   QGL_invalidateExtensionFunc(table.m_glGetTexParameterfv);
 325   QGL_invalidateExtensionFunc(table.m_glGetTexParameteriv);
 326   QGL_invalidateExtensionFunc(table.m_glHint);
 327   QGL_invalidateExtensionFunc(table.m_glIndexMask);
 328   QGL_invalidateExtensionFunc(table.m_glIndexPointer);
 329   QGL_invalidateExtensionFunc(table.m_glIndexd);
 330   QGL_invalidateExtensionFunc(table.m_glIndexdv);
 331   QGL_invalidateExtensionFunc(table.m_glIndexf);
 332   QGL_invalidateExtensionFunc(table.m_glIndexfv);
 333   QGL_invalidateExtensionFunc(table.m_glIndexi);
 334   QGL_invalidateExtensionFunc(table.m_glIndexiv);
 335   QGL_invalidateExtensionFunc(table.m_glIndexs);
 336   QGL_invalidateExtensionFunc(table.m_glIndexsv);
 337   QGL_invalidateExtensionFunc(table.m_glIndexub);
 338   QGL_invalidateExtensionFunc(table.m_glIndexubv);
 339   QGL_invalidateExtensionFunc(table.m_glInitNames);
 340   QGL_invalidateExtensionFunc(table.m_glInterleavedArrays);
 341   QGL_invalidateExtensionFunc(table.m_glIsEnabled);
 342   QGL_invalidateExtensionFunc(table.m_glIsList);
 343   QGL_invalidateExtensionFunc(table.m_glIsTexture);
 344   QGL_invalidateExtensionFunc(table.m_glLightModelf);
 345   QGL_invalidateExtensionFunc(table.m_glLightModelfv);
 346   QGL_invalidateExtensionFunc(table.m_glLightModeli);
 347   QGL_invalidateExtensionFunc(table.m_glLightModeliv);
 348   QGL_invalidateExtensionFunc(table.m_glLightf);
 349   QGL_invalidateExtensionFunc(table.m_glLightfv);
 350   QGL_invalidateExtensionFunc(table.m_glLighti);
 351   QGL_invalidateExtensionFunc(table.m_glLightiv);
 352   QGL_invalidateExtensionFunc(table.m_glLineStipple);
 353   QGL_invalidateExtensionFunc(table.m_glLineWidth);
 354   QGL_invalidateExtensionFunc(table.m_glListBase);
 355   QGL_invalidateExtensionFunc(table.m_glLoadIdentity);
 356   QGL_invalidateExtensionFunc(table.m_glLoadMatrixd);
 357   QGL_invalidateExtensionFunc(table.m_glLoadMatrixf);
 358   QGL_invalidateExtensionFunc(table.m_glLoadName);
 359   QGL_invalidateExtensionFunc(table.m_glLogicOp);
 360   QGL_invalidateExtensionFunc(table.m_glMap1d);
 361   QGL_invalidateExtensionFunc(table.m_glMap1f);
 362   QGL_invalidateExtensionFunc(table.m_glMap2d);
 363   QGL_invalidateExtensionFunc(table.m_glMap2f);
 364   QGL_invalidateExtensionFunc(table.m_glMapGrid1d);
 365   QGL_invalidateExtensionFunc(table.m_glMapGrid1f);
 366   QGL_invalidateExtensionFunc(table.m_glMapGrid2d);
 367   QGL_invalidateExtensionFunc(table.m_glMapGrid2f);
 368   QGL_invalidateExtensionFunc(table.m_glMaterialf);
 369   QGL_invalidateExtensionFunc(table.m_glMaterialfv);
 370   QGL_invalidateExtensionFunc(table.m_glMateriali);
 371   QGL_invalidateExtensionFunc(table.m_glMaterialiv);
 372   QGL_invalidateExtensionFunc(table.m_glMatrixMode);
 373   QGL_invalidateExtensionFunc(table.m_glMultMatrixd);
 374   QGL_invalidateExtensionFunc(table.m_glMultMatrixf);
 375   QGL_invalidateExtensionFunc(table.m_glNewList);
 376   QGL_invalidateExtensionFunc(table.m_glNormal3b);
 377   QGL_invalidateExtensionFunc(table.m_glNormal3bv);
 378   QGL_invalidateExtensionFunc(table.m_glNormal3d);
 379   QGL_invalidateExtensionFunc(table.m_glNormal3dv);
 380   QGL_invalidateExtensionFunc(table.m_glNormal3f);
 381   QGL_invalidateExtensionFunc(table.m_glNormal3fv);
 382   QGL_invalidateExtensionFunc(table.m_glNormal3i);
 383   QGL_invalidateExtensionFunc(table.m_glNormal3iv);
 384   QGL_invalidateExtensionFunc(table.m_glNormal3s);
 385   QGL_invalidateExtensionFunc(table.m_glNormal3sv);
 386   QGL_invalidateExtensionFunc(table.m_glNormalPointer);
 387   QGL_invalidateExtensionFunc(table.m_glOrtho);
 388   QGL_invalidateExtensionFunc(table.m_glPassThrough);
 389   QGL_invalidateExtensionFunc(table.m_glPixelMapfv);
 390   QGL_invalidateExtensionFunc(table.m_glPixelMapuiv);
 391   QGL_invalidateExtensionFunc(table.m_glPixelMapusv);
 392   QGL_invalidateExtensionFunc(table.m_glPixelStoref);
 393   QGL_invalidateExtensionFunc(table.m_glPixelStorei);
 394   QGL_invalidateExtensionFunc(table.m_glPixelTransferf);
 395   QGL_invalidateExtensionFunc(table.m_glPixelTransferi);
 396   QGL_invalidateExtensionFunc(table.m_glPixelZoom);
 397   QGL_invalidateExtensionFunc(table.m_glPointSize);
 398   QGL_invalidateExtensionFunc(table.m_glPolygonMode);
 399   QGL_invalidateExtensionFunc(table.m_glPolygonOffset);
 400   QGL_invalidateExtensionFunc(table.m_glPolygonStipple);
 401   QGL_invalidateExtensionFunc(table.m_glPopAttrib);
 402   QGL_invalidateExtensionFunc(table.m_glPopClientAttrib);
 403   QGL_invalidateExtensionFunc(table.m_glPopMatrix);
 404   QGL_invalidateExtensionFunc(table.m_glPopName);
 405   QGL_invalidateExtensionFunc(table.m_glPrioritizeTextures);
 406   QGL_invalidateExtensionFunc(table.m_glPushAttrib);
 407   QGL_invalidateExtensionFunc(table.m_glPushClientAttrib);
 408   QGL_invalidateExtensionFunc(table.m_glPushMatrix);
 409   QGL_invalidateExtensionFunc(table.m_glPushName);
 410   QGL_invalidateExtensionFunc(table.m_glRasterPos2d);
 411   QGL_invalidateExtensionFunc(table.m_glRasterPos2dv);
 412   QGL_invalidateExtensionFunc(table.m_glRasterPos2f);
 413   QGL_invalidateExtensionFunc(table.m_glRasterPos2fv);
 414   QGL_invalidateExtensionFunc(table.m_glRasterPos2i);
 415   QGL_invalidateExtensionFunc(table.m_glRasterPos2iv);
 416   QGL_invalidateExtensionFunc(table.m_glRasterPos2s);
 417   QGL_invalidateExtensionFunc(table.m_glRasterPos2sv);
 418   QGL_invalidateExtensionFunc(table.m_glRasterPos3d);
 419   QGL_invalidateExtensionFunc(table.m_glRasterPos3dv);
 420   QGL_invalidateExtensionFunc(table.m_glRasterPos3f);
 421   QGL_invalidateExtensionFunc(table.m_glRasterPos3fv);
 422   QGL_invalidateExtensionFunc(table.m_glRasterPos3i);
 423   QGL_invalidateExtensionFunc(table.m_glRasterPos3iv);
 424   QGL_invalidateExtensionFunc(table.m_glRasterPos3s);
 425   QGL_invalidateExtensionFunc(table.m_glRasterPos3sv);
 426   QGL_invalidateExtensionFunc(table.m_glRasterPos4d);
 427   QGL_invalidateExtensionFunc(table.m_glRasterPos4dv);
 428   QGL_invalidateExtensionFunc(table.m_glRasterPos4f);
 429   QGL_invalidateExtensionFunc(table.m_glRasterPos4fv);
 430   QGL_invalidateExtensionFunc(table.m_glRasterPos4i);
 431   QGL_invalidateExtensionFunc(table.m_glRasterPos4iv);
 432   QGL_invalidateExtensionFunc(table.m_glRasterPos4s);
 433   QGL_invalidateExtensionFunc(table.m_glRasterPos4sv);
 434   QGL_invalidateExtensionFunc(table.m_glReadBuffer);
 435   QGL_invalidateExtensionFunc(table.m_glReadPixels);
 436   QGL_invalidateExtensionFunc(table.m_glRectd);
 437   QGL_invalidateExtensionFunc(table.m_glRectdv);
 438   QGL_invalidateExtensionFunc(table.m_glRectf);
 439   QGL_invalidateExtensionFunc(table.m_glRectfv);
 440   QGL_invalidateExtensionFunc(table.m_glRecti);
 441   QGL_invalidateExtensionFunc(table.m_glRectiv);
 442   QGL_invalidateExtensionFunc(table.m_glRects);
 443   QGL_invalidateExtensionFunc(table.m_glRectsv);
 444   QGL_invalidateExtensionFunc(table.m_glRenderMode);
 445   QGL_invalidateExtensionFunc(table.m_glRotated);
 446   QGL_invalidateExtensionFunc(table.m_glRotatef);
 447   QGL_invalidateExtensionFunc(table.m_glScaled);
 448   QGL_invalidateExtensionFunc(table.m_glScalef);
 449   QGL_invalidateExtensionFunc(table.m_glScissor);
 450   QGL_invalidateExtensionFunc(table.m_glSelectBuffer);
 451   QGL_invalidateExtensionFunc(table.m_glShadeModel);
 452   QGL_invalidateExtensionFunc(table.m_glStencilFunc);
 453   QGL_invalidateExtensionFunc(table.m_glStencilMask);
 454   QGL_invalidateExtensionFunc(table.m_glStencilOp);
 455   QGL_invalidateExtensionFunc(table.m_glTexCoord1d);
 456   QGL_invalidateExtensionFunc(table.m_glTexCoord1dv);
 457   QGL_invalidateExtensionFunc(table.m_glTexCoord1f);
 458   QGL_invalidateExtensionFunc(table.m_glTexCoord1fv);
 459   QGL_invalidateExtensionFunc(table.m_glTexCoord1i);
 460   QGL_invalidateExtensionFunc(table.m_glTexCoord1iv);
 461   QGL_invalidateExtensionFunc(table.m_glTexCoord1s);
 462   QGL_invalidateExtensionFunc(table.m_glTexCoord1sv);
 463   QGL_invalidateExtensionFunc(table.m_glTexCoord2d);
 464   QGL_invalidateExtensionFunc(table.m_glTexCoord2dv);
 465   QGL_invalidateExtensionFunc(table.m_glTexCoord2f);
 466   QGL_invalidateExtensionFunc(table.m_glTexCoord2fv);
 467   QGL_invalidateExtensionFunc(table.m_glTexCoord2i);
 468   QGL_invalidateExtensionFunc(table.m_glTexCoord2iv);
 469   QGL_invalidateExtensionFunc(table.m_glTexCoord2s);
 470   QGL_invalidateExtensionFunc(table.m_glTexCoord2sv);
 471   QGL_invalidateExtensionFunc(table.m_glTexCoord3d);
 472   QGL_invalidateExtensionFunc(table.m_glTexCoord3dv);
 473   QGL_invalidateExtensionFunc(table.m_glTexCoord3f);
 474   QGL_invalidateExtensionFunc(table.m_glTexCoord3fv);
 475   QGL_invalidateExtensionFunc(table.m_glTexCoord3i);
 476   QGL_invalidateExtensionFunc(table.m_glTexCoord3iv);
 477   QGL_invalidateExtensionFunc(table.m_glTexCoord3s);
 478   QGL_invalidateExtensionFunc(table.m_glTexCoord3sv);
 479   QGL_invalidateExtensionFunc(table.m_glTexCoord4d);
 480   QGL_invalidateExtensionFunc(table.m_glTexCoord4dv);
 481   QGL_invalidateExtensionFunc(table.m_glTexCoord4f);
 482   QGL_invalidateExtensionFunc(table.m_glTexCoord4fv);
 483   QGL_invalidateExtensionFunc(table.m_glTexCoord4i);
 484   QGL_invalidateExtensionFunc(table.m_glTexCoord4iv);
 485   QGL_invalidateExtensionFunc(table.m_glTexCoord4s);
 486   QGL_invalidateExtensionFunc(table.m_glTexCoord4sv);
 487   QGL_invalidateExtensionFunc(table.m_glTexCoordPointer);
 488   QGL_invalidateExtensionFunc(table.m_glTexEnvf);
 489   QGL_invalidateExtensionFunc(table.m_glTexEnvfv);
 490   QGL_invalidateExtensionFunc(table.m_glTexEnvi);
 491   QGL_invalidateExtensionFunc(table.m_glTexEnviv);
 492   QGL_invalidateExtensionFunc(table.m_glTexGend);
 493   QGL_invalidateExtensionFunc(table.m_glTexGendv);
 494   QGL_invalidateExtensionFunc(table.m_glTexGenf);
 495   QGL_invalidateExtensionFunc(table.m_glTexGenfv);
 496   QGL_invalidateExtensionFunc(table.m_glTexGeni);
 497   QGL_invalidateExtensionFunc(table.m_glTexGeniv);
 498   QGL_invalidateExtensionFunc(table.m_glTexImage1D);
 499   QGL_invalidateExtensionFunc(table.m_glTexImage2D);
 500   QGL_invalidateExtensionFunc(table.m_glTexParameterf);
 501   QGL_invalidateExtensionFunc(table.m_glTexParameterfv);
 502   QGL_invalidateExtensionFunc(table.m_glTexParameteri);
 503   QGL_invalidateExtensionFunc(table.m_glTexParameteriv);
 504   QGL_invalidateExtensionFunc(table.m_glTexSubImage1D);
 505   QGL_invalidateExtensionFunc(table.m_glTexSubImage2D);
 506   QGL_invalidateExtensionFunc(table.m_glTranslated);
 507   QGL_invalidateExtensionFunc(table.m_glTranslatef);
 508   QGL_invalidateExtensionFunc(table.m_glVertex2d);
 509   QGL_invalidateExtensionFunc(table.m_glVertex2dv);
 510   QGL_invalidateExtensionFunc(table.m_glVertex2f);
 511   QGL_invalidateExtensionFunc(table.m_glVertex2fv);
 512   QGL_invalidateExtensionFunc(table.m_glVertex2i);
 513   QGL_invalidateExtensionFunc(table.m_glVertex2iv);
 514   QGL_invalidateExtensionFunc(table.m_glVertex2s);
 515   QGL_invalidateExtensionFunc(table.m_glVertex2sv);
 516   QGL_invalidateExtensionFunc(table.m_glVertex3d);
 517   QGL_invalidateExtensionFunc(table.m_glVertex3dv);
 518   QGL_invalidateExtensionFunc(table.m_glVertex3f);
 519   QGL_invalidateExtensionFunc(table.m_glVertex3fv);
 520   QGL_invalidateExtensionFunc(table.m_glVertex3i);
 521   QGL_invalidateExtensionFunc(table.m_glVertex3iv);
 522   QGL_invalidateExtensionFunc(table.m_glVertex3s);
 523   QGL_invalidateExtensionFunc(table.m_glVertex3sv);
 524   QGL_invalidateExtensionFunc(table.m_glVertex4d);
 525   QGL_invalidateExtensionFunc(table.m_glVertex4dv);
 526   QGL_invalidateExtensionFunc(table.m_glVertex4f);
 527   QGL_invalidateExtensionFunc(table.m_glVertex4fv);
 528   QGL_invalidateExtensionFunc(table.m_glVertex4i);
 529   QGL_invalidateExtensionFunc(table.m_glVertex4iv);
 530   QGL_invalidateExtensionFunc(table.m_glVertex4s);
 531   QGL_invalidateExtensionFunc(table.m_glVertex4sv);
 532   QGL_invalidateExtensionFunc(table.m_glVertexPointer);
 533   QGL_invalidateExtensionFunc(table.m_glViewport);
 534 }
 535
 536 int QGL_Init(OpenGLBinding& table)
 537 {
 538   QGL_clear(table);
 539
 540 #if defined(WIN32)
 541   qwglGetProcAddress           = wglGetProcAddress;
 542 #elif defined(XWINDOWS)
 543   qglXGetProcAddressARB = (glXGetProcAddressARBProc)dlsym(RTLD_DEFAULT, "glXGetProcAddressARB");
 544   if ((qglXQueryExtension == 0) || (qglXQueryExtension(GDK_DISPLAY(),0,0) != True))
 545     return 0;
 546 #else
 547 #error "unsupported platform"
 548 #endif
 549
 550   return 1;
 551 }
 552
 553 int g_qglMajorVersion = 0;
 554 int g_qglMinorVersion = 0;
 555
 556 // requires a valid gl context
 557 void QGL_InitVersion()
 558 {
 559 #if EXTENSIONS_ENABLED
 560   const std::size_t versionSize = 256;
 561   char version[versionSize];
 562   strncpy(version, reinterpret_cast<const char*>(GlobalOpenGL().m_glGetString(GL_VERSION)), versionSize - 1);
 563   version[versionSize - 1] = '\0';
 564   char* firstDot = strchr(version, '.');
 565   ASSERT_NOTNULL(firstDot);
 566   *firstDot = '\0';
 567   g_qglMajorVersion = atoi(version);
 568   char* secondDot = strchr(firstDot + 1, '.');
 569   if(secondDot != 0)
 570   {
 571     *secondDot = '\0';
 572   }
 573   g_qglMinorVersion = atoi(firstDot + 1);
 574 #else
 575   g_qglMajorVersion = 1;
 576   g_qglMinorVersion = 1;
 577 #endif
 578 }
 579
 580
 581 inline void extension_not_implemented(const char* extension)
 582 {
 583   globalErrorStream() << "WARNING: OpenGL driver reports support for " << extension << " but does not implement it\n";
 584 }
 585
 586 float g_maxTextureAnisotropy;
 587
 588 float QGL_maxTextureAnisotropy()
 589 {
 590   return g_maxTextureAnisotropy;
 591 }
 592
 593 void QGL_sharedContextCreated(OpenGLBinding& table)
 594 {
 595   QGL_InitVersion();
 596
 597   table.major_version = g_qglMajorVersion;
 598   table.minor_version = g_qglMinorVersion;
 599
 600   table.m_glAccum                     = glAccum;
 601   table.m_glAlphaFunc                 = glAlphaFunc;
 602   table.m_glAreTexturesResident       = glAreTexturesResident;
 603   table.m_glArrayElement              = glArrayElement;
 604   table.m_glBegin                     = glBegin;
 605   table.m_glBindTexture               = glBindTexture;
 606   table.m_glBitmap                    = glBitmap;
 607   table.m_glBlendFunc                 = glBlendFunc;
 608   table.m_glCallList                  = glCallList;
 609   table.m_glCallLists                 = glCallLists;
 610   table.m_glClear                     = glClear;
 611   table.m_glClearAccum                = glClearAccum;
 612   table.m_glClearColor                = glClearColor;
 613   table.m_glClearDepth                = glClearDepth;
 614   table.m_glClearIndex                = glClearIndex;
 615   table.m_glClearStencil              = glClearStencil;
 616   table.m_glClipPlane                 = glClipPlane;
 617   table.m_glColor3b                   = glColor3b;
 618   table.m_glColor3bv                  = glColor3bv;
 619   table.m_glColor3d                   = glColor3d;
 620   table.m_glColor3dv                  = glColor3dv;
 621   table.m_glColor3f                   = glColor3f;
 622   table.m_glColor3fv                  = glColor3fv;
 623   table.m_glColor3i                   = glColor3i;
 624   table.m_glColor3iv                  = glColor3iv;
 625   table.m_glColor3s                   = glColor3s;
 626   table.m_glColor3sv                  = glColor3sv;
 627   table.m_glColor3ub                  = glColor3ub;
 628   table.m_glColor3ubv                 = glColor3ubv;
 629   table.m_glColor3ui                  = glColor3ui;
 630   table.m_glColor3uiv                 = glColor3uiv;
 631   table.m_glColor3us                  = glColor3us;
 632   table.m_glColor3usv                 = glColor3usv;
 633   table.m_glColor4b                   = glColor4b;
 634   table.m_glColor4bv                  = glColor4bv;
 635   table.m_glColor4d                   = glColor4d;
 636   table.m_glColor4dv                  = glColor4dv;
 637   table.m_glColor4f                   = glColor4f;
 638   table.m_glColor4fv                  = glColor4fv;
 639   table.m_glColor4i                   = glColor4i;
 640   table.m_glColor4iv                  = glColor4iv;
 641   table.m_glColor4s                   = glColor4s;
 642   table.m_glColor4sv                  = glColor4sv;
 643   table.m_glColor4ub                  = glColor4ub;
 644   table.m_glColor4ubv                 = glColor4ubv;
 645   table.m_glColor4ui                  = glColor4ui;
 646   table.m_glColor4uiv                 = glColor4uiv;
 647   table.m_glColor4us                  = glColor4us;
 648   table.m_glColor4usv                 = glColor4usv;
 649   table.m_glColorMask                 = glColorMask;
 650   table.m_glColorMaterial             = glColorMaterial;
 651   table.m_glColorPointer              = glColorPointer;
 652   table.m_glCopyPixels                = glCopyPixels;
 653   table.m_glCopyTexImage1D            = glCopyTexImage1D;
 654   table.m_glCopyTexImage2D            = glCopyTexImage2D;
 655   table.m_glCopyTexSubImage1D         = glCopyTexSubImage1D;
 656   table.m_glCopyTexSubImage2D         = glCopyTexSubImage2D;
 657   table.m_glCullFace                  = glCullFace;
 658   table.m_glDeleteLists               = glDeleteLists;
 659   table.m_glDeleteTextures            = glDeleteTextures;
 660   table.m_glDepthFunc                 = glDepthFunc;
 661   table.m_glDepthMask                 = glDepthMask;
 662   table.m_glDepthRange                = glDepthRange;
 663   table.m_glDisable                   = glDisable;
 664   table.m_glDisableClientState        = glDisableClientState;
 665   table.m_glDrawArrays                = glDrawArrays;
 666   table.m_glDrawBuffer                = glDrawBuffer;
 667   table.m_glDrawElements              = glDrawElements;
 668   table.m_glDrawPixels                = glDrawPixels;
 669   table.m_glEdgeFlag                  = glEdgeFlag;
 670   table.m_glEdgeFlagPointer           = glEdgeFlagPointer;
 671   table.m_glEdgeFlagv                 = glEdgeFlagv;
 672   table.m_glEnable                    = glEnable;
 673   table.m_glEnableClientState         = glEnableClientState;
 674   table.m_glEnd                       = glEnd;
 675   table.m_glEndList                   = glEndList;
 676   table.m_glEvalCoord1d               = glEvalCoord1d;
 677   table.m_glEvalCoord1dv              = glEvalCoord1dv;
 678   table.m_glEvalCoord1f               = glEvalCoord1f;
 679   table.m_glEvalCoord1fv              = glEvalCoord1fv;
 680   table.m_glEvalCoord2d               = glEvalCoord2d;
 681   table.m_glEvalCoord2dv              = glEvalCoord2dv;
 682   table.m_glEvalCoord2f               = glEvalCoord2f;
 683   table.m_glEvalCoord2fv              = glEvalCoord2fv;
 684   table.m_glEvalMesh1                 = glEvalMesh1;
 685   table.m_glEvalMesh2                 = glEvalMesh2;
 686   table.m_glEvalPoint1                = glEvalPoint1;
 687   table.m_glEvalPoint2                = glEvalPoint2;
 688   table.m_glFeedbackBuffer            = glFeedbackBuffer;
 689   table.m_glFinish                    = glFinish;
 690   table.m_glFlush                     = glFlush;
 691   table.m_glFogf                      = glFogf;
 692   table.m_glFogfv                     = glFogfv;
 693   table.m_glFogi                      = glFogi;
 694   table.m_glFogiv                     = glFogiv;
 695   table.m_glFrontFace                 = glFrontFace;
 696   table.m_glFrustum                   = glFrustum;
 697   table.m_glGenLists                  = glGenLists;
 698   table.m_glGenTextures               = glGenTextures;
 699   table.m_glGetBooleanv               = glGetBooleanv;
 700   table.m_glGetClipPlane              = glGetClipPlane;
 701   table.m_glGetDoublev                = glGetDoublev;
 702   table.m_glGetError                  = glGetError;
 703   table.m_glGetFloatv                 = glGetFloatv;
 704   table.m_glGetIntegerv               = glGetIntegerv;
 705   table.m_glGetLightfv                = glGetLightfv;
 706   table.m_glGetLightiv                = glGetLightiv;
 707   table.m_glGetMapdv                  = glGetMapdv;
 708   table.m_glGetMapfv                  = glGetMapfv;
 709   table.m_glGetMapiv                  = glGetMapiv;
 710   table.m_glGetMaterialfv             = glGetMaterialfv;
 711   table.m_glGetMaterialiv             = glGetMaterialiv;
 712   table.m_glGetPixelMapfv             = glGetPixelMapfv;
 713   table.m_glGetPixelMapuiv            = glGetPixelMapuiv;
 714   table.m_glGetPixelMapusv            = glGetPixelMapusv;
 715   table.m_glGetPointerv               = glGetPointerv;
 716   table.m_glGetPolygonStipple         = glGetPolygonStipple;
 717   table.m_glGetString                 = glGetString;
 718   table.m_glGetTexEnvfv               = glGetTexEnvfv;
 719   table.m_glGetTexEnviv               = glGetTexEnviv;
 720   table.m_glGetTexGendv               = glGetTexGendv;
 721   table.m_glGetTexGenfv               = glGetTexGenfv;
 722   table.m_glGetTexGeniv               = glGetTexGeniv;
 723   table.m_glGetTexImage               = glGetTexImage;
 724   table.m_glGetTexLevelParameterfv    = glGetTexLevelParameterfv;
 725   table.m_glGetTexLevelParameteriv    = glGetTexLevelParameteriv;
 726   table.m_glGetTexParameterfv         = glGetTexParameterfv;
 727   table.m_glGetTexParameteriv         = glGetTexParameteriv;
 728   table.m_glHint                      = glHint;
 729   table.m_glIndexMask                 = glIndexMask;
 730   table.m_glIndexPointer              = glIndexPointer;
 731   table.m_glIndexd                    = glIndexd;
 732   table.m_glIndexdv                   = glIndexdv;
 733   table.m_glIndexf                    = glIndexf;
 734   table.m_glIndexfv                   = glIndexfv;
 735   table.m_glIndexi                    = glIndexi;
 736   table.m_glIndexiv                   = glIndexiv;
 737   table.m_glIndexs                    = glIndexs;
 738   table.m_glIndexsv                   = glIndexsv;
 739   table.m_glIndexub                   = glIndexub;
 740   table.m_glIndexubv                  = glIndexubv;
 741   table.m_glInitNames                 = glInitNames;
 742   table.m_glInterleavedArrays         = glInterleavedArrays;
 743   table.m_glIsEnabled                 = glIsEnabled;
 744   table.m_glIsList                    = glIsList;
 745   table.m_glIsTexture                 = glIsTexture;
 746   table.m_glLightModelf               = glLightModelf;
 747   table.m_glLightModelfv              = glLightModelfv;
 748   table.m_glLightModeli               = glLightModeli;
 749   table.m_glLightModeliv              = glLightModeliv;
 750   table.m_glLightf                    = glLightf;
 751   table.m_glLightfv                   = glLightfv;
 752   table.m_glLighti                    = glLighti;
 753   table.m_glLightiv                   = glLightiv;
 754   table.m_glLineStipple               = glLineStipple;
 755   table.m_glLineWidth                 = glLineWidth;
 756   table.m_glListBase                  = glListBase;
 757   table.m_glLoadIdentity              = glLoadIdentity;
 758   table.m_glLoadMatrixd               = glLoadMatrixd;
 759   table.m_glLoadMatrixf               = glLoadMatrixf;
 760   table.m_glLoadName                  = glLoadName;
 761   table.m_glLogicOp                   = glLogicOp;
 762   table.m_glMap1d                     = glMap1d;
 763   table.m_glMap1f                     = glMap1f;
 764   table.m_glMap2d                     = glMap2d;
 765   table.m_glMap2f                     = glMap2f;
 766   table.m_glMapGrid1d                 = glMapGrid1d;
 767   table.m_glMapGrid1f                 = glMapGrid1f;
 768   table.m_glMapGrid2d                 = glMapGrid2d;
 769   table.m_glMapGrid2f                 = glMapGrid2f;
 770   table.m_glMaterialf                 = glMaterialf;
 771   table.m_glMaterialfv                = glMaterialfv;
 772   table.m_glMateriali                 = glMateriali;
 773   table.m_glMaterialiv                = glMaterialiv;
 774   table.m_glMatrixMode                = glMatrixMode;
 775   table.m_glMultMatrixd               = glMultMatrixd;
 776   table.m_glMultMatrixf               = glMultMatrixf;
 777   table.m_glNewList                   = glNewList;
 778   table.m_glNormal3b                  = glNormal3b;
 779   table.m_glNormal3bv                 = glNormal3bv;
 780   table.m_glNormal3d                  = glNormal3d;
 781   table.m_glNormal3dv                 = glNormal3dv;
 782   table.m_glNormal3f                  = glNormal3f;
 783   table.m_glNormal3fv                 = glNormal3fv;
 784   table.m_glNormal3i                  = glNormal3i;
 785   table.m_glNormal3iv                 = glNormal3iv;
 786   table.m_glNormal3s                  = glNormal3s;
 787   table.m_glNormal3sv                 = glNormal3sv;
 788   table.m_glNormalPointer             = glNormalPointer;
 789   table.m_glOrtho                     = glOrtho;
 790   table.m_glPassThrough               = glPassThrough;
 791   table.m_glPixelMapfv                = glPixelMapfv;
 792   table.m_glPixelMapuiv               = glPixelMapuiv;
 793   table.m_glPixelMapusv               = glPixelMapusv;
 794   table.m_glPixelStoref               = glPixelStoref;
 795   table.m_glPixelStorei               = glPixelStorei;
 796   table.m_glPixelTransferf            = glPixelTransferf;
 797   table.m_glPixelTransferi            = glPixelTransferi;
 798   table.m_glPixelZoom                 = glPixelZoom;
 799   table.m_glPointSize                 = glPointSize;
 800   table.m_glPolygonMode               = glPolygonMode;
 801   table.m_glPolygonOffset             = glPolygonOffset;
 802   table.m_glPolygonStipple            = glPolygonStipple;
 803   table.m_glPopAttrib                 = glPopAttrib;
 804   table.m_glPopClientAttrib           = glPopClientAttrib;
 805   table.m_glPopMatrix                 = glPopMatrix;
 806   table.m_glPopName                   = glPopName;
 807   table.m_glPrioritizeTextures        = glPrioritizeTextures;
 808   table.m_glPushAttrib                = glPushAttrib;
 809   table.m_glPushClientAttrib          = glPushClientAttrib;
 810   table.m_glPushMatrix                = glPushMatrix;
 811   table.m_glPushName                  = glPushName;
 812   table.m_glRasterPos2d               = glRasterPos2d;
 813   table.m_glRasterPos2dv              = glRasterPos2dv;
 814   table.m_glRasterPos2f               = glRasterPos2f;
 815   table.m_glRasterPos2fv              = glRasterPos2fv;
 816   table.m_glRasterPos2i               = glRasterPos2i;
 817   table.m_glRasterPos2iv              = glRasterPos2iv;
 818   table.m_glRasterPos2s               = glRasterPos2s;
 819   table.m_glRasterPos2sv              = glRasterPos2sv;
 820   table.m_glRasterPos3d               = glRasterPos3d;
 821   table.m_glRasterPos3dv              = glRasterPos3dv;
 822   table.m_glRasterPos3f               = glRasterPos3f;
 823   table.m_glRasterPos3fv              = glRasterPos3fv;
 824   table.m_glRasterPos3i               = glRasterPos3i;
 825   table.m_glRasterPos3iv              = glRasterPos3iv;
 826   table.m_glRasterPos3s               = glRasterPos3s;
 827   table.m_glRasterPos3sv              = glRasterPos3sv;
 828   table.m_glRasterPos4d               = glRasterPos4d;
 829   table.m_glRasterPos4dv              = glRasterPos4dv;
 830   table.m_glRasterPos4f               = glRasterPos4f;
 831   table.m_glRasterPos4fv              = glRasterPos4fv;
 832   table.m_glRasterPos4i               = glRasterPos4i;
 833   table.m_glRasterPos4iv              = glRasterPos4iv;
 834   table.m_glRasterPos4s               = glRasterPos4s;
 835   table.m_glRasterPos4sv              = glRasterPos4sv;
 836   table.m_glReadBuffer                = glReadBuffer;
 837   table.m_glReadPixels                = glReadPixels;
 838   table.m_glRectd                     = glRectd;
 839   table.m_glRectdv                    = glRectdv;
 840   table.m_glRectf                     = glRectf;
 841   table.m_glRectfv                    = glRectfv;
 842   table.m_glRecti                     = glRecti;
 843   table.m_glRectiv                    = glRectiv;
 844   table.m_glRects                     = glRects;
 845   table.m_glRectsv                    = glRectsv;
 846   table.m_glRenderMode                = glRenderMode;
 847   table.m_glRotated                   = glRotated;
 848   table.m_glRotatef                   = glRotatef;
 849   table.m_glScaled                    = glScaled;
 850   table.m_glScalef                    = glScalef;
 851   table.m_glScissor                   = glScissor;
 852   table.m_glSelectBuffer              = glSelectBuffer;
 853   table.m_glShadeModel                = glShadeModel;
 854   table.m_glStencilFunc               = glStencilFunc;
 855   table.m_glStencilMask               = glStencilMask;
 856   table.m_glStencilOp                 = glStencilOp;
 857   table.m_glTexCoord1d                = glTexCoord1d;
 858   table.m_glTexCoord1dv               = glTexCoord1dv;
 859   table.m_glTexCoord1f                = glTexCoord1f;
 860   table.m_glTexCoord1fv               = glTexCoord1fv;
 861   table.m_glTexCoord1i                = glTexCoord1i;
 862   table.m_glTexCoord1iv               = glTexCoord1iv;
 863   table.m_glTexCoord1s                = glTexCoord1s;
 864   table.m_glTexCoord1sv               = glTexCoord1sv;
 865   table.m_glTexCoord2d                = glTexCoord2d;
 866   table.m_glTexCoord2dv               = glTexCoord2dv;
 867   table.m_glTexCoord2f                = glTexCoord2f;
 868   table.m_glTexCoord2fv               = glTexCoord2fv;
 869   table.m_glTexCoord2i                = glTexCoord2i;
 870   table.m_glTexCoord2iv               = glTexCoord2iv;
 871   table.m_glTexCoord2s                = glTexCoord2s;
 872   table.m_glTexCoord2sv               = glTexCoord2sv;
 873   table.m_glTexCoord3d                = glTexCoord3d;
 874   table.m_glTexCoord3dv               = glTexCoord3dv;
 875   table.m_glTexCoord3f                = glTexCoord3f;
 876   table.m_glTexCoord3fv               = glTexCoord3fv;
 877   table.m_glTexCoord3i                = glTexCoord3i;
 878   table.m_glTexCoord3iv               = glTexCoord3iv;
 879   table.m_glTexCoord3s                = glTexCoord3s;
 880   table.m_glTexCoord3sv               = glTexCoord3sv;
 881   table.m_glTexCoord4d                = glTexCoord4d;
 882   table.m_glTexCoord4dv               = glTexCoord4dv;
 883   table.m_glTexCoord4f                = glTexCoord4f;
 884   table.m_glTexCoord4fv               = glTexCoord4fv;
 885   table.m_glTexCoord4i                = glTexCoord4i;
 886   table.m_glTexCoord4iv               = glTexCoord4iv;
 887   table.m_glTexCoord4s                = glTexCoord4s;
 888   table.m_glTexCoord4sv               = glTexCoord4sv;
 889   table.m_glTexCoordPointer           = glTexCoordPointer;
 890   table.m_glTexEnvf                   = glTexEnvf;
 891   table.m_glTexEnvfv                  = glTexEnvfv;
 892   table.m_glTexEnvi                   = glTexEnvi;
 893   table.m_glTexEnviv                  = glTexEnviv;
 894   table.m_glTexGend                   = glTexGend;
 895   table.m_glTexGendv                  = glTexGendv;
 896   table.m_glTexGenf                   = glTexGenf;
 897   table.m_glTexGenfv                  = glTexGenfv;
 898   table.m_glTexGeni                   = glTexGeni;
 899   table.m_glTexGeniv                  = glTexGeniv;
 900   table.m_glTexImage1D                = glTexImage1D;
 901   table.m_glTexImage2D                = glTexImage2D;
 902   table.m_glTexParameterf             = glTexParameterf;
 903   table.m_glTexParameterfv            = glTexParameterfv;
 904   table.m_glTexParameteri             = glTexParameteri;
 905   table.m_glTexParameteriv            = glTexParameteriv;
 906   table.m_glTexSubImage1D             = glTexSubImage1D;
 907   table.m_glTexSubImage2D             = glTexSubImage2D;
 908   table.m_glTranslated                = glTranslated;
 909   table.m_glTranslatef                = glTranslatef;
 910   table.m_glVertex2d                  = glVertex2d;
 911   table.m_glVertex2dv                 = glVertex2dv;
 912   table.m_glVertex2f                  = glVertex2f;
 913   table.m_glVertex2fv                 = glVertex2fv;
 914   table.m_glVertex2i                  = glVertex2i;
 915   table.m_glVertex2iv                 = glVertex2iv;
 916   table.m_glVertex2s                  = glVertex2s;
 917   table.m_glVertex2sv                 = glVertex2sv;
 918   table.m_glVertex3d                  = glVertex3d;
 919   table.m_glVertex3dv                 = glVertex3dv;
 920   table.m_glVertex3f                  = glVertex3f;
 921   table.m_glVertex3fv                 = glVertex3fv;
 922   table.m_glVertex3i                  = glVertex3i;
 923   table.m_glVertex3iv                 = glVertex3iv;
 924   table.m_glVertex3s                  = glVertex3s;
 925   table.m_glVertex3sv                 = glVertex3sv;
 926   table.m_glVertex4d                  = glVertex4d;
 927   table.m_glVertex4dv                 = glVertex4dv;
 928   table.m_glVertex4f                  = glVertex4f;
 929   table.m_glVertex4fv                 = glVertex4fv;
 930   table.m_glVertex4i                  = glVertex4i;
 931   table.m_glVertex4iv                 = glVertex4iv;
 932   table.m_glVertex4s                  = glVertex4s;
 933   table.m_glVertex4sv                 = glVertex4sv;
 934   table.m_glVertexPointer             = glVertexPointer;
 935   table.m_glViewport                  = glViewport;
 936
 937   if(QGL_ExtensionSupported("GL_ARB_multitexture"))
 938   {
 939     table.support_ARB_multitexture =
 940     QGL_constructExtensionFunc(table.m_glActiveTextureARB, "glActiveTextureARB")
 941     && QGL_constructExtensionFunc(table.m_glClientActiveTextureARB, "glClientActiveTextureARB")
 942     && QGL_constructExtensionFunc(table.m_glMultiTexCoord1dARB, "glMultiTexCoord1dARB")
 943     && QGL_constructExtensionFunc(table.m_glMultiTexCoord1dvARB, "glMultiTexCoord1dvARB")
 944     && QGL_constructExtensionFunc(table.m_glMultiTexCoord1fARB, "glMultiTexCoord1fARB")
 945     && QGL_constructExtensionFunc(table.m_glMultiTexCoord1fvARB, "glMultiTexCoord1fvARB")
 946     && QGL_constructExtensionFunc(table.m_glMultiTexCoord1iARB, "glMultiTexCoord1iARB")
 947     && QGL_constructExtensionFunc(table.m_glMultiTexCoord1ivARB, "glMultiTexCoord1ivARB")
 948     && QGL_constructExtensionFunc(table.m_glMultiTexCoord1sARB, "glMultiTexCoord1sARB")
 949     && QGL_constructExtensionFunc(table.m_glMultiTexCoord1svARB, "glMultiTexCoord1svARB")
 950     && QGL_constructExtensionFunc(table.m_glMultiTexCoord2dARB, "glMultiTexCoord2dARB")
 951     && QGL_constructExtensionFunc(table.m_glMultiTexCoord2dvARB, "glMultiTexCoord2dvARB")
 952     && QGL_constructExtensionFunc(table.m_glMultiTexCoord2fARB, "glMultiTexCoord2fARB")
 953     && QGL_constructExtensionFunc(table.m_glMultiTexCoord2fvARB, "glMultiTexCoord2fvARB")
 954     && QGL_constructExtensionFunc(table.m_glMultiTexCoord2iARB, "glMultiTexCoord2iARB")
 955     && QGL_constructExtensionFunc(table.m_glMultiTexCoord2ivARB, "glMultiTexCoord2ivARB")
 956     && QGL_constructExtensionFunc(table.m_glMultiTexCoord2sARB, "glMultiTexCoord2sARB")
 957     && QGL_constructExtensionFunc(table.m_glMultiTexCoord2svARB, "glMultiTexCoord2svARB")
 958     && QGL_constructExtensionFunc(table.m_glMultiTexCoord3dARB, "glMultiTexCoord3dARB")
 959     && QGL_constructExtensionFunc(table.m_glMultiTexCoord3dvARB, "glMultiTexCoord3dvARB")
 960     && QGL_constructExtensionFunc(table.m_glMultiTexCoord3fARB, "glMultiTexCoord3fARB")
 961     && QGL_constructExtensionFunc(table.m_glMultiTexCoord3fvARB, "glMultiTexCoord3fvARB")
 962     && QGL_constructExtensionFunc(table.m_glMultiTexCoord3iARB, "glMultiTexCoord3iARB")
 963     && QGL_constructExtensionFunc(table.m_glMultiTexCoord3ivARB, "glMultiTexCoord3ivARB")
 964     && QGL_constructExtensionFunc(table.m_glMultiTexCoord3sARB, "glMultiTexCoord3sARB")
 965     && QGL_constructExtensionFunc(table.m_glMultiTexCoord3svARB, "glMultiTexCoord3svARB")
 966     && QGL_constructExtensionFunc(table.m_glMultiTexCoord4dARB, "glMultiTexCoord4dARB")
 967     && QGL_constructExtensionFunc(table.m_glMultiTexCoord4dvARB, "glMultiTexCoord4dvARB")
 968     && QGL_constructExtensionFunc(table.m_glMultiTexCoord4fARB, "glMultiTexCoord4fARB")
 969     && QGL_constructExtensionFunc(table.m_glMultiTexCoord4fvARB, "glMultiTexCoord4fvARB")
 970     && QGL_constructExtensionFunc(table.m_glMultiTexCoord4iARB, "glMultiTexCoord4iARB")
 971     && QGL_constructExtensionFunc(table.m_glMultiTexCoord4ivARB, "glMultiTexCoord4ivARB")
 972     && QGL_constructExtensionFunc(table.m_glMultiTexCoord4sARB, "glMultiTexCoord4sARB")
 973     && QGL_constructExtensionFunc(table.m_glMultiTexCoord4svARB, "glMultiTexCoord4svARB");
 974
 975     if(!table.support_ARB_multitexture)
 976     {
 977       extension_not_implemented("GL_ARB_multitexture");
 978     }
 979   }
 980   else
 981   {
 982     table.support_ARB_multitexture = false;
 983   }
 984
 985   if(QGL_ExtensionSupported("GL_ARB_texture_compression"))
 986   {
 987     table.support_ARB_texture_compression =
 988     QGL_constructExtensionFunc(table.m_glCompressedTexImage3DARB, "glCompressedTexImage3DARB")
 989     && QGL_constructExtensionFunc(table.m_glCompressedTexImage2DARB, "glCompressedTexImage2DARB")
 990     && QGL_constructExtensionFunc(table.m_glCompressedTexImage1DARB, "glCompressedTexImage1DARB")
 991     && QGL_constructExtensionFunc(table.m_glCompressedTexSubImage3DARB, "glCompressedTexSubImage3DARB")
 992     && QGL_constructExtensionFunc(table.m_glCompressedTexSubImage2DARB, "glCompressedTexSubImage2DARB")
 993     && QGL_constructExtensionFunc(table.m_glCompressedTexSubImage1DARB, "glCompressedTexSubImage1DARB")
 994     && QGL_constructExtensionFunc(table.m_glGetCompressedTexImageARB, "glGetCompressedTexImageARB");
 995
 996     if(!table.support_ARB_texture_compression)
 997     {
 998       extension_not_implemented("GL_ARB_texture_compression");
 999     }
1000   }
1001   else
1002   {
1003     table.support_ARB_texture_compression = false;
1004   }
1005
1006   table.support_EXT_texture_compression_s3tc = QGL_ExtensionSupported("GL_EXT_texture_compression_s3tc");
1007
1008   // GL 1.2
1009   if(table.major_version > 1 || table.minor_version >= 2)
1010   {
1011     table.support_GL_1_2 =
1012     QGL_constructExtensionFunc(table.m_glCopyTexSubImage3D, "glCopyTexSubImage3D")
1013     && QGL_constructExtensionFunc(table.m_glDrawRangeElements, "glDrawRangeElements")
1014     && QGL_constructExtensionFunc(table.m_glTexImage3D, "glTexImage3D")
1015     && QGL_constructExtensionFunc(table.m_glTexSubImage3D, "glTexSubImage3D");
1016
1017     if(!table.support_GL_1_2)
1018     {
1019       extension_not_implemented("GL_VERSION_1_2");
1020     }
1021   }
1022   else
1023   {
1024     table.support_GL_1_2 = false;
1025   }
1026
1027   // GL 1.3
1028   if(table.major_version > 1 || table.minor_version >= 3)
1029   {
1030     table.support_GL_1_3 =
1031     QGL_constructExtensionFunc(table.m_glActiveTexture, "glActiveTexture")
1032     && QGL_constructExtensionFunc(table.m_glClientActiveTexture, "glClientActiveTexture")
1033     && QGL_constructExtensionFunc(table.m_glCompressedTexImage1D, "glCompressedTexImage1D")
1034     && QGL_constructExtensionFunc(table.m_glCompressedTexImage2D, "glCompressedTexImage2D")
1035     && QGL_constructExtensionFunc(table.m_glCompressedTexImage3D, "glCompressedTexImage3D")
1036     && QGL_constructExtensionFunc(table.m_glCompressedTexSubImage1D, "glCompressedTexSubImage1D")
1037     && QGL_constructExtensionFunc(table.m_glCompressedTexSubImage2D, "glCompressedTexSubImage2D")
1038     && QGL_constructExtensionFunc(table.m_glCompressedTexSubImage3D, "glCompressedTexSubImage3D")
1039     && QGL_constructExtensionFunc(table.m_glGetCompressedTexImage, "glGetCompressedTexImage")
1040     && QGL_constructExtensionFunc(table.m_glLoadTransposeMatrixd, "glLoadTransposeMatrixd")
1041     && QGL_constructExtensionFunc(table.m_glLoadTransposeMatrixf, "glLoadTransposeMatrixf")
1042     && QGL_constructExtensionFunc(table.m_glMultTransposeMatrixd, "glMultTransposeMatrixd")
1043     && QGL_constructExtensionFunc(table.m_glMultTransposeMatrixf, "glMultTransposeMatrixf")
1044     && QGL_constructExtensionFunc(table.m_glMultiTexCoord1d, "glMultiTexCoord1d")
1045     && QGL_constructExtensionFunc(table.m_glMultiTexCoord1dv, "glMultiTexCoord1dv")
1046     && QGL_constructExtensionFunc(table.m_glMultiTexCoord1f, "glMultiTexCoord1f")
1047     && QGL_constructExtensionFunc(table.m_glMultiTexCoord1fv, "glMultiTexCoord1fv")
1048     && QGL_constructExtensionFunc(table.m_glMultiTexCoord1i, "glMultiTexCoord1i")
1049     && QGL_constructExtensionFunc(table.m_glMultiTexCoord1iv, "glMultiTexCoord1iv")
1050     && QGL_constructExtensionFunc(table.m_glMultiTexCoord1s, "glMultiTexCoord1s")
1051     && QGL_constructExtensionFunc(table.m_glMultiTexCoord1sv, "glMultiTexCoord1sv")
1052     && QGL_constructExtensionFunc(table.m_glMultiTexCoord2d, "glMultiTexCoord2d")
1053     && QGL_constructExtensionFunc(table.m_glMultiTexCoord2dv, "glMultiTexCoord2dv")
1054     && QGL_constructExtensionFunc(table.m_glMultiTexCoord2f, "glMultiTexCoord2f")
1055     && QGL_constructExtensionFunc(table.m_glMultiTexCoord2fv, "glMultiTexCoord2fv")
1056     && QGL_constructExtensionFunc(table.m_glMultiTexCoord2i, "glMultiTexCoord2i")
1057     && QGL_constructExtensionFunc(table.m_glMultiTexCoord2iv, "glMultiTexCoord2iv")
1058     && QGL_constructExtensionFunc(table.m_glMultiTexCoord2s, "glMultiTexCoord2s")
1059     && QGL_constructExtensionFunc(table.m_glMultiTexCoord2sv, "glMultiTexCoord2sv")
1060     && QGL_constructExtensionFunc(table.m_glMultiTexCoord3d, "glMultiTexCoord3d")
1061     && QGL_constructExtensionFunc(table.m_glMultiTexCoord3dv, "glMultiTexCoord3dv")
1062     && QGL_constructExtensionFunc(table.m_glMultiTexCoord3f, "glMultiTexCoord3f")
1063     && QGL_constructExtensionFunc(table.m_glMultiTexCoord3fv, "glMultiTexCoord3fv")
1064     && QGL_constructExtensionFunc(table.m_glMultiTexCoord3i, "glMultiTexCoord3i")
1065     && QGL_constructExtensionFunc(table.m_glMultiTexCoord3iv, "glMultiTexCoord3iv")
1066     && QGL_constructExtensionFunc(table.m_glMultiTexCoord3s, "glMultiTexCoord3s")
1067     && QGL_constructExtensionFunc(table.m_glMultiTexCoord3sv, "glMultiTexCoord3sv")
1068     && QGL_constructExtensionFunc(table.m_glMultiTexCoord4d, "glMultiTexCoord4d")
1069     && QGL_constructExtensionFunc(table.m_glMultiTexCoord4dv, "glMultiTexCoord4dv")
1070     && QGL_constructExtensionFunc(table.m_glMultiTexCoord4f, "glMultiTexCoord4f")
1071     && QGL_constructExtensionFunc(table.m_glMultiTexCoord4fv, "glMultiTexCoord4fv")
1072     && QGL_constructExtensionFunc(table.m_glMultiTexCoord4i, "glMultiTexCoord4i")
1073     && QGL_constructExtensionFunc(table.m_glMultiTexCoord4iv, "glMultiTexCoord4iv")
1074     && QGL_constructExtensionFunc(table.m_glMultiTexCoord4s, "glMultiTexCoord4s")
1075     && QGL_constructExtensionFunc(table.m_glMultiTexCoord4sv, "glMultiTexCoord4sv")
1076     && QGL_constructExtensionFunc(table.m_glSampleCoverage, "glSampleCoverage");
1077
1078     if(!table.support_GL_1_3)
1079     {
1080       extension_not_implemented("GL_VERSION_1_3");
1081     }
1082   }
1083   else
1084   {
1085     table.support_GL_1_3 = false;
1086   }
1087
1088   // GL 1.4
1089   if(table.major_version > 1 || table.minor_version >= 4)
1090   {
1091     table.support_GL_1_4 =
1092     QGL_constructExtensionFunc(table.m_glBlendColor, "glBlendColor")
1093     && QGL_constructExtensionFunc(table.m_glBlendEquation, "glBlendEquation")
1094     && QGL_constructExtensionFunc(table.m_glBlendFuncSeparate, "glBlendFuncSeparate")
1095     && QGL_constructExtensionFunc(table.m_glFogCoordPointer, "glFogCoordPointer")
1096     && QGL_constructExtensionFunc(table.m_glFogCoordd, "glFogCoordd")
1097     && QGL_constructExtensionFunc(table.m_glFogCoorddv, "glFogCoorddv")
1098     && QGL_constructExtensionFunc(table.m_glFogCoordf, "glFogCoordf")
1099     && QGL_constructExtensionFunc(table.m_glFogCoordfv, "glFogCoordfv")
1100     && QGL_constructExtensionFunc(table.m_glMultiDrawArrays, "glMultiDrawArrays")
1101     && QGL_constructExtensionFunc(table.m_glMultiDrawElements, "glMultiDrawElements")
1102     && QGL_constructExtensionFunc(table.m_glPointParameterf, "glPointParameterf")
1103     && QGL_constructExtensionFunc(table.m_glPointParameterfv, "glPointParameterfv")
1104     && QGL_constructExtensionFunc(table.m_glSecondaryColor3b, "glSecondaryColor3b")
1105     && QGL_constructExtensionFunc(table.m_glSecondaryColor3bv, "glSecondaryColor3bv")
1106     && QGL_constructExtensionFunc(table.m_glSecondaryColor3d, "glSecondaryColor3d")
1107     && QGL_constructExtensionFunc(table.m_glSecondaryColor3dv, "glSecondaryColor3dv")
1108     && QGL_constructExtensionFunc(table.m_glSecondaryColor3f, "glSecondaryColor3f")
1109     && QGL_constructExtensionFunc(table.m_glSecondaryColor3fv, "glSecondaryColor3fv")
1110     && QGL_constructExtensionFunc(table.m_glSecondaryColor3i, "glSecondaryColor3i")
1111     && QGL_constructExtensionFunc(table.m_glSecondaryColor3iv, "glSecondaryColor3iv")
1112     && QGL_constructExtensionFunc(table.m_glSecondaryColor3s, "glSecondaryColor3s")
1113     && QGL_constructExtensionFunc(table.m_glSecondaryColor3sv, "glSecondaryColor3sv")
1114     && QGL_constructExtensionFunc(table.m_glSecondaryColor3ub, "glSecondaryColor3ub")
1115     && QGL_constructExtensionFunc(table.m_glSecondaryColor3ubv, "glSecondaryColor3ubv")
1116     && QGL_constructExtensionFunc(table.m_glSecondaryColor3ui, "glSecondaryColor3ui")
1117     && QGL_constructExtensionFunc(table.m_glSecondaryColor3uiv, "glSecondaryColor3uiv")
1118     && QGL_constructExtensionFunc(table.m_glSecondaryColor3us, "glSecondaryColor3us")
1119     && QGL_constructExtensionFunc(table.m_glSecondaryColor3usv, "glSecondaryColor3usv")
1120     && QGL_constructExtensionFunc(table.m_glSecondaryColorPointer, "glSecondaryColorPointer")
1121     && QGL_constructExtensionFunc(table.m_glWindowPos2d, "glWindowPos2d")
1122     && QGL_constructExtensionFunc(table.m_glWindowPos2dv, "glWindowPos2dv")
1123     && QGL_constructExtensionFunc(table.m_glWindowPos2f, "glWindowPos2f")
1124     && QGL_constructExtensionFunc(table.m_glWindowPos2fv, "glWindowPos2fv")
1125     && QGL_constructExtensionFunc(table.m_glWindowPos2i, "glWindowPos2i")
1126     && QGL_constructExtensionFunc(table.m_glWindowPos2iv, "glWindowPos2iv")
1127     && QGL_constructExtensionFunc(table.m_glWindowPos2s, "glWindowPos2s")
1128     && QGL_constructExtensionFunc(table.m_glWindowPos2sv, "glWindowPos2sv")
1129     && QGL_constructExtensionFunc(table.m_glWindowPos3d, "glWindowPos3d")
1130     && QGL_constructExtensionFunc(table.m_glWindowPos3dv, "glWindowPos3dv")
1131     && QGL_constructExtensionFunc(table.m_glWindowPos3f, "glWindowPos3f")
1132     && QGL_constructExtensionFunc(table.m_glWindowPos3fv, "glWindowPos3fv")
1133     && QGL_constructExtensionFunc(table.m_glWindowPos3i, "glWindowPos3i")
1134     && QGL_constructExtensionFunc(table.m_glWindowPos3iv, "glWindowPos3iv")
1135     && QGL_constructExtensionFunc(table.m_glWindowPos3s, "glWindowPos3s")
1136     && QGL_constructExtensionFunc(table.m_glWindowPos3sv, "glWindowPos3sv");
1137
1138     if(!table.support_GL_1_4)
1139     {
1140       extension_not_implemented("GL_VERSION_1_4");
1141     }
1142   }
1143   else
1144   {
1145     table.support_GL_1_4 = false;
1146   }
1147
1148   // GL 1.5
1149   if(table.major_version > 1 || table.minor_version >= 5)
1150   {
1151     table.support_GL_1_5 =
1152     QGL_constructExtensionFunc(table.m_glBeginQuery, "glBeginQuery")
1153     && QGL_constructExtensionFunc(table.m_glBindBuffer, "glBindBuffer")
1154     && QGL_constructExtensionFunc(table.m_glBufferData, "glBufferData")
1155     && QGL_constructExtensionFunc(table.m_glBufferSubData, "glBufferSubData")
1156     && QGL_constructExtensionFunc(table.m_glDeleteBuffers, "glDeleteBuffers")
1157     && QGL_constructExtensionFunc(table.m_glDeleteQueries, "glDeleteQueries")
1158     && QGL_constructExtensionFunc(table.m_glEndQuery, "glEndQuery")
1159     && QGL_constructExtensionFunc(table.m_glGenBuffers, "glGenBuffers")
1160     && QGL_constructExtensionFunc(table.m_glGenQueries, "glGenQueries")
1161     && QGL_constructExtensionFunc(table.m_glGetBufferParameteriv, "glGetBufferParameteriv")
1162     && QGL_constructExtensionFunc(table.m_glGetBufferPointerv, "glGetBufferPointerv")
1163     && QGL_constructExtensionFunc(table.m_glGetBufferSubData, "glGetBufferSubData")
1164     && QGL_constructExtensionFunc(table.m_glGetQueryObjectiv, "glGetQueryObjectiv")
1165     && QGL_constructExtensionFunc(table.m_glGetQueryObjectuiv, "glGetQueryObjectuiv")
1166     && QGL_constructExtensionFunc(table.m_glGetQueryiv, "glGetQueryiv")
1167     && QGL_constructExtensionFunc(table.m_glIsBuffer, "glIsBuffer")
1168     && QGL_constructExtensionFunc(table.m_glIsQuery, "glIsQuery")
1169     && QGL_constructExtensionFunc(table.m_glMapBuffer, "glMapBuffer")
1170     && QGL_constructExtensionFunc(table.m_glUnmapBuffer, "glUnmapBuffer");
1171
1172     if(!table.support_GL_1_5)
1173     {
1174       extension_not_implemented("GL_VERSION_1_5");
1175     }
1176   }
1177   else
1178   {
1179     table.support_GL_1_5 = false;
1180   }
1181
1182
1183   if(QGL_ExtensionSupported("GL_ARB_vertex_program"))
1184   {
1185     table.support_ARB_vertex_program =
1186     QGL_constructExtensionFunc(table.m_glVertexAttrib1sARB, "glVertexAttrib1sARB")
1187     && QGL_constructExtensionFunc(table.m_glVertexAttrib1fARB, "glVertexAttrib1fARB")
1188     && QGL_constructExtensionFunc(table.m_glVertexAttrib1dARB, "glVertexAttrib1dARB")
1189     && QGL_constructExtensionFunc(table.m_glVertexAttrib2sARB, "glVertexAttrib2sARB")
1190     && QGL_constructExtensionFunc(table.m_glVertexAttrib2fARB, "glVertexAttrib2fARB")
1191     && QGL_constructExtensionFunc(table.m_glVertexAttrib2dARB, "glVertexAttrib2dARB")
1192     && QGL_constructExtensionFunc(table.m_glVertexAttrib3sARB, "glVertexAttrib3sARB")
1193     && QGL_constructExtensionFunc(table.m_glVertexAttrib3fARB, "glVertexAttrib3fARB")
1194     && QGL_constructExtensionFunc(table.m_glVertexAttrib3dARB, "glVertexAttrib3dARB")
1195     && QGL_constructExtensionFunc(table.m_glVertexAttrib4sARB, "glVertexAttrib4sARB")
1196     && QGL_constructExtensionFunc(table.m_glVertexAttrib4fARB, "glVertexAttrib4fARB")
1197     && QGL_constructExtensionFunc(table.m_glVertexAttrib4dARB, "glVertexAttrib4dARB")
1198     && QGL_constructExtensionFunc(table.m_glVertexAttrib4NubARB, "glVertexAttrib4NubARB")
1199     && QGL_constructExtensionFunc(table.m_glVertexAttrib1svARB, "glVertexAttrib1svARB")
1200     && QGL_constructExtensionFunc(table.m_glVertexAttrib1fvARB, "glVertexAttrib1fvARB")
1201     && QGL_constructExtensionFunc(table.m_glVertexAttrib1dvARB, "glVertexAttrib1dvARB")
1202     && QGL_constructExtensionFunc(table.m_glVertexAttrib2svARB, "glVertexAttrib2svARB")
1203     && QGL_constructExtensionFunc(table.m_glVertexAttrib2fvARB, "glVertexAttrib2fvARB")
1204     && QGL_constructExtensionFunc(table.m_glVertexAttrib2dvARB, "glVertexAttrib2dvARB")
1205     && QGL_constructExtensionFunc(table.m_glVertexAttrib3svARB, "glVertexAttrib3svARB")
1206     && QGL_constructExtensionFunc(table.m_glVertexAttrib3fvARB, "glVertexAttrib3fvARB")
1207     && QGL_constructExtensionFunc(table.m_glVertexAttrib3dvARB, "glVertexAttrib3dvARB")
1208     && QGL_constructExtensionFunc(table.m_glVertexAttrib4bvARB, "glVertexAttrib4bvARB")
1209     && QGL_constructExtensionFunc(table.m_glVertexAttrib4svARB, "glVertexAttrib4svARB")
1210     && QGL_constructExtensionFunc(table.m_glVertexAttrib4ivARB, "glVertexAttrib4ivARB")
1211     && QGL_constructExtensionFunc(table.m_glVertexAttrib4ubvARB, "glVertexAttrib4ubvARB")
1212     && QGL_constructExtensionFunc(table.m_glVertexAttrib4usvARB, "glVertexAttrib4usvARB")
1213     && QGL_constructExtensionFunc(table.m_glVertexAttrib4uivARB, "glVertexAttrib4uivARB")
1214     && QGL_constructExtensionFunc(table.m_glVertexAttrib4fvARB, "glVertexAttrib4fvARB")
1215     && QGL_constructExtensionFunc(table.m_glVertexAttrib4dvARB, "glVertexAttrib4dvARB")
1216     && QGL_constructExtensionFunc(table.m_glVertexAttrib4NbvARB, "glVertexAttrib4NbvARB")
1217     && QGL_constructExtensionFunc(table.m_glVertexAttrib4NsvARB, "glVertexAttrib4NsvARB")
1218     && QGL_constructExtensionFunc(table.m_glVertexAttrib4NivARB, "glVertexAttrib4NivARB")
1219     && QGL_constructExtensionFunc(table.m_glVertexAttrib4NubvARB, "glVertexAttrib4NubvARB")
1220     && QGL_constructExtensionFunc(table.m_glVertexAttrib4NusvARB, "glVertexAttrib4NusvARB")
1221     && QGL_constructExtensionFunc(table.m_glVertexAttrib4NuivARB, "glVertexAttrib4NuivARB")
1222     && QGL_constructExtensionFunc(table.m_glVertexAttribPointerARB, "glVertexAttribPointerARB")
1223     && QGL_constructExtensionFunc(table.m_glEnableVertexAttribArrayARB, "glEnableVertexAttribArrayARB")
1224     && QGL_constructExtensionFunc(table.m_glDisableVertexAttribArrayARB, "glDisableVertexAttribArrayARB")
1225     && QGL_constructExtensionFunc(table.m_glProgramStringARB, "glProgramStringARB")
1226     && QGL_constructExtensionFunc(table.m_glBindProgramARB, "glBindProgramARB")
1227     && QGL_constructExtensionFunc(table.m_glDeleteProgramsARB, "glDeleteProgramsARB")
1228     && QGL_constructExtensionFunc(table.m_glGenProgramsARB, "glGenProgramsARB")
1229     && QGL_constructExtensionFunc(table.m_glProgramEnvParameter4dARB, "glProgramEnvParameter4dARB")
1230     && QGL_constructExtensionFunc(table.m_glProgramEnvParameter4dvARB, "glProgramEnvParameter4dvARB")
1231     && QGL_constructExtensionFunc(table.m_glProgramEnvParameter4fARB, "glProgramEnvParameter4fARB")
1232     && QGL_constructExtensionFunc(table.m_glProgramEnvParameter4fvARB, "glProgramEnvParameter4fvARB")
1233     && QGL_constructExtensionFunc(table.m_glProgramLocalParameter4dARB, "glProgramLocalParameter4dARB")
1234     && QGL_constructExtensionFunc(table.m_glProgramLocalParameter4dvARB, "glProgramLocalParameter4dvARB")
1235     && QGL_constructExtensionFunc(table.m_glProgramLocalParameter4fARB, "glProgramLocalParameter4fARB")
1236     && QGL_constructExtensionFunc(table.m_glProgramLocalParameter4fvARB, "glProgramLocalParameter4fvARB")
1237     && QGL_constructExtensionFunc(table.m_glGetProgramEnvParameterdvARB, "glGetProgramEnvParameterdvARB")
1238     && QGL_constructExtensionFunc(table.m_glGetProgramEnvParameterfvARB, "glGetProgramEnvParameterfvARB")
1239     && QGL_constructExtensionFunc(table.m_glGetProgramLocalParameterdvARB, "glGetProgramLocalParameterdvARB")
1240     && QGL_constructExtensionFunc(table.m_glGetProgramLocalParameterfvARB, "glGetProgramLocalParameterfvARB")
1241     && QGL_constructExtensionFunc(table.m_glGetProgramivARB, "glGetProgramivARB")
1242     && QGL_constructExtensionFunc(table.m_glGetProgramStringARB, "glGetProgramStringARB")
1243     && QGL_constructExtensionFunc(table.m_glGetVertexAttribdvARB, "glGetVertexAttribdvARB")
1244     && QGL_constructExtensionFunc(table.m_glGetVertexAttribfvARB, "glGetVertexAttribfvARB")
1245     && QGL_constructExtensionFunc(table.m_glGetVertexAttribivARB, "glGetVertexAttribivARB")
1246     && QGL_constructExtensionFunc(table.m_glGetVertexAttribPointervARB, "glGetVertexAttribPointervARB")
1247     && QGL_constructExtensionFunc(table.m_glIsProgramARB, "glIsProgramARB");
1248
1249     if(!table.support_ARB_vertex_program)
1250     {
1251       extension_not_implemented("GL_ARB_vertex_program");
1252     }
1253   }
1254   else
1255   {
1256     table.support_ARB_vertex_program = false;
1257   }
1258
1259
1260   table.support_ARB_fragment_program = QGL_ExtensionSupported("GL_ARB_fragment_program");
1261
1262   if(QGL_ExtensionSupported("GL_ARB_shader_objects"))
1263   {
1264     table.support_ARB_shader_objects =
1265     QGL_constructExtensionFunc(table.m_glDeleteObjectARB, "glDeleteObjectARB")
1266     && QGL_constructExtensionFunc(table.m_glGetHandleARB, "glGetHandleARB")
1267     && QGL_constructExtensionFunc(table.m_glDetachObjectARB, "glDetachObjectARB")
1268     && QGL_constructExtensionFunc(table.m_glCreateShaderObjectARB, "glCreateShaderObjectARB")
1269     && QGL_constructExtensionFunc(table.m_glShaderSourceARB, "glShaderSourceARB")
1270     && QGL_constructExtensionFunc(table.m_glCompileShaderARB, "glCompileShaderARB")
1271     && QGL_constructExtensionFunc(table.m_glCreateProgramObjectARB, "glCreateProgramObjectARB")
1272     && QGL_constructExtensionFunc(table.m_glAttachObjectARB, "glAttachObjectARB")
1273     && QGL_constructExtensionFunc(table.m_glLinkProgramARB, "glLinkProgramARB")
1274     && QGL_constructExtensionFunc(table.m_glUseProgramObjectARB, "glUseProgramObjectARB")
1275     && QGL_constructExtensionFunc(table.m_glValidateProgramARB, "glValidateProgramARB")
1276     && QGL_constructExtensionFunc(table.m_glUniform1fARB, "glUniform1fARB")
1277     && QGL_constructExtensionFunc(table.m_glUniform2fARB, "glUniform2fARB")
1278     && QGL_constructExtensionFunc(table.m_glUniform3fARB, "glUniform3fARB")
1279     && QGL_constructExtensionFunc(table.m_glUniform4fARB, "glUniform4fARB")
1280     && QGL_constructExtensionFunc(table.m_glUniform1iARB, "glUniform1iARB")
1281     && QGL_constructExtensionFunc(table.m_glUniform2iARB, "glUniform2iARB")
1282     && QGL_constructExtensionFunc(table.m_glUniform3iARB, "glUniform3iARB")
1283     && QGL_constructExtensionFunc(table.m_glUniform4iARB, "glUniform4iARB")
1284     && QGL_constructExtensionFunc(table.m_glUniform1fvARB, "glUniform1fvARB")
1285     && QGL_constructExtensionFunc(table.m_glUniform2fvARB, "glUniform2fvARB")
1286     && QGL_constructExtensionFunc(table.m_glUniform3fvARB, "glUniform3fvARB")
1287     && QGL_constructExtensionFunc(table.m_glUniform4fvARB, "glUniform4fvARB")
1288     && QGL_constructExtensionFunc(table.m_glUniform1ivARB, "glUniform1ivARB")
1289     && QGL_constructExtensionFunc(table.m_glUniform2ivARB, "glUniform2ivARB")
1290     && QGL_constructExtensionFunc(table.m_glUniform3ivARB, "glUniform3ivARB")
1291     && QGL_constructExtensionFunc(table.m_glUniform4ivARB, "glUniform4ivARB")
1292     && QGL_constructExtensionFunc(table.m_glUniformMatrix2fvARB, "glUniformMatrix2fvARB")
1293     && QGL_constructExtensionFunc(table.m_glUniformMatrix3fvARB, "glUniformMatrix3fvARB")
1294     && QGL_constructExtensionFunc(table.m_glUniformMatrix4fvARB, "glUniformMatrix4fvARB")
1295     && QGL_constructExtensionFunc(table.m_glGetObjectParameterfvARB, "glGetObjectParameterfvARB")
1296     && QGL_constructExtensionFunc(table.m_glGetObjectParameterivARB, "glGetObjectParameterivARB")
1297     && QGL_constructExtensionFunc(table.m_glGetInfoLogARB, "glGetInfoLogARB")
1298     && QGL_constructExtensionFunc(table.m_glGetAttachedObjectsARB, "glGetAttachedObjectsARB")
1299     && QGL_constructExtensionFunc(table.m_glGetUniformLocationARB, "glGetUniformLocationARB")
1300     && QGL_constructExtensionFunc(table.m_glGetActiveUniformARB, "glGetActiveUniformARB")
1301     && QGL_constructExtensionFunc(table.m_glGetUniformfvARB, "glGetUniformfvARB")
1302     && QGL_constructExtensionFunc(table.m_glGetUniformivARB, "glGetUniformivARB")
1303     && QGL_constructExtensionFunc(table.m_glGetShaderSourceARB, "glGetShaderSourceARB");
1304
1305     if(!table.support_ARB_shader_objects)
1306     {
1307       extension_not_implemented("GL_ARB_shader_objects");
1308     }
1309   }
1310   else
1311   {
1312     table.support_ARB_shader_objects = false;
1313   }
1314
1315   if(QGL_ExtensionSupported("GL_ARB_vertex_shader"))
1316   {
1317     table.support_ARB_vertex_shader =
1318     QGL_constructExtensionFunc(table.m_glVertexAttrib1fARB, "glVertexAttrib1fARB")
1319     && QGL_constructExtensionFunc(table.m_glVertexAttrib1sARB, "glVertexAttrib1sARB")
1320     && QGL_constructExtensionFunc(table.m_glVertexAttrib1dARB, "glVertexAttrib1dARB")
1321     && QGL_constructExtensionFunc(table.m_glVertexAttrib2fARB, "glVertexAttrib2fARB")
1322     && QGL_constructExtensionFunc(table.m_glVertexAttrib2sARB, "glVertexAttrib2sARB")
1323     && QGL_constructExtensionFunc(table.m_glVertexAttrib2dARB, "glVertexAttrib2dARB")
1324     && QGL_constructExtensionFunc(table.m_glVertexAttrib3fARB, "glVertexAttrib3fARB")
1325     && QGL_constructExtensionFunc(table.m_glVertexAttrib3sARB, "glVertexAttrib3sARB")
1326     && QGL_constructExtensionFunc(table.m_glVertexAttrib3dARB, "glVertexAttrib3dARB")
1327     && QGL_constructExtensionFunc(table.m_glVertexAttrib4fARB, "glVertexAttrib4fARB")
1328     && QGL_constructExtensionFunc(table.m_glVertexAttrib4sARB, "glVertexAttrib4sARB")
1329     && QGL_constructExtensionFunc(table.m_glVertexAttrib4dARB, "glVertexAttrib4dARB")
1330     && QGL_constructExtensionFunc(table.m_glVertexAttrib4NubARB, "glVertexAttrib4NubARB")
1331     && QGL_constructExtensionFunc(table.m_glVertexAttrib1fvARB, "glVertexAttrib1fvARB")
1332     && QGL_constructExtensionFunc(table.m_glVertexAttrib1svARB, "glVertexAttrib1svARB")
1333     && QGL_constructExtensionFunc(table.m_glVertexAttrib1dvARB, "glVertexAttrib1dvARB")
1334     && QGL_constructExtensionFunc(table.m_glVertexAttrib2fvARB, "glVertexAttrib2fvARB")
1335     && QGL_constructExtensionFunc(table.m_glVertexAttrib2svARB, "glVertexAttrib2svARB")
1336     && QGL_constructExtensionFunc(table.m_glVertexAttrib2dvARB, "glVertexAttrib2dvARB")
1337     && QGL_constructExtensionFunc(table.m_glVertexAttrib3fvARB, "glVertexAttrib3fvARB")
1338     && QGL_constructExtensionFunc(table.m_glVertexAttrib3svARB, "glVertexAttrib3svARB")
1339     && QGL_constructExtensionFunc(table.m_glVertexAttrib3dvARB, "glVertexAttrib3dvARB")
1340     && QGL_constructExtensionFunc(table.m_glVertexAttrib4fvARB, "glVertexAttrib4fvARB")
1341     && QGL_constructExtensionFunc(table.m_glVertexAttrib4svARB, "glVertexAttrib4svARB")
1342     && QGL_constructExtensionFunc(table.m_glVertexAttrib4dvARB, "glVertexAttrib4dvARB")
1343     && QGL_constructExtensionFunc(table.m_glVertexAttrib4ivARB, "glVertexAttrib4ivARB")
1344     && QGL_constructExtensionFunc(table.m_glVertexAttrib4bvARB, "glVertexAttrib4bvARB")
1345     && QGL_constructExtensionFunc(table.m_glVertexAttrib4ubvARB, "glVertexAttrib4ubvARB")
1346     && QGL_constructExtensionFunc(table.m_glVertexAttrib4usvARB, "glVertexAttrib4usvARB")
1347     && QGL_constructExtensionFunc(table.m_glVertexAttrib4uivARB, "glVertexAttrib4uivARB")
1348     && QGL_constructExtensionFunc(table.m_glVertexAttrib4NbvARB, "glVertexAttrib4NbvARB")
1349     && QGL_constructExtensionFunc(table.m_glVertexAttrib4NsvARB, "glVertexAttrib4NsvARB")
1350     && QGL_constructExtensionFunc(table.m_glVertexAttrib4NivARB, "glVertexAttrib4NivARB")
1351     && QGL_constructExtensionFunc(table.m_glVertexAttrib4NubvARB, "glVertexAttrib4NubvARB")
1352     && QGL_constructExtensionFunc(table.m_glVertexAttrib4NusvARB, "glVertexAttrib4NusvARB")
1353     && QGL_constructExtensionFunc(table.m_glVertexAttrib4NuivARB, "glVertexAttrib4NuivARB")
1354     && QGL_constructExtensionFunc(table.m_glVertexAttribPointerARB, "glVertexAttribPointerARB")
1355     && QGL_constructExtensionFunc(table.m_glEnableVertexAttribArrayARB, "glEnableVertexAttribArrayARB")
1356     && QGL_constructExtensionFunc(table.m_glDisableVertexAttribArrayARB, "glDisableVertexAttribArrayARB")
1357     && QGL_constructExtensionFunc(table.m_glGetVertexAttribdvARB, "glGetVertexAttribdvARB")
1358     && QGL_constructExtensionFunc(table.m_glGetVertexAttribfvARB, "glGetVertexAttribfvARB")
1359     && QGL_constructExtensionFunc(table.m_glGetVertexAttribivARB, "glGetVertexAttribivARB")
1360     && QGL_constructExtensionFunc(table.m_glGetVertexAttribPointervARB, "glGetVertexAttribPointervARB")
1361     && QGL_constructExtensionFunc(table.m_glBindAttribLocationARB, "glBindAttribLocationARB")
1362     && QGL_constructExtensionFunc(table.m_glGetActiveAttribARB, "glGetActiveAttribARB")
1363     && QGL_constructExtensionFunc(table.m_glGetAttribLocationARB, "glGetAttribLocationARB");
1364
1365     if(!table.support_ARB_vertex_shader)
1366     {
1367       extension_not_implemented("GL_ARB_vertex_shader");
1368     }
1369   }
1370   else
1371   {
1372     table.support_ARB_vertex_shader = false;
1373   }
1374
1375   if(QGL_ExtensionSupported("GL_NV_vertex_program2"))
1376   {
1377     table.support_NV_vertex_program2 =
1378     QGL_constructExtensionFunc(table.m_glAreProgramsResidentNV, "glAreProgramsResidentNV")
1379     && QGL_constructExtensionFunc(table.m_glBindProgramNV, "glBindProgramNV")
1380     && QGL_constructExtensionFunc(table.m_glDeleteProgramsNV, "glDeleteProgramsNV")
1381     && QGL_constructExtensionFunc(table.m_glExecuteProgramNV, "glExecuteProgramNV")
1382     && QGL_constructExtensionFunc(table.m_glGenProgramsNV, "glGenProgramsNV")
1383     && QGL_constructExtensionFunc(table.m_glGetProgramParameterdvNV, "glGetProgramParameterdvNV")
1384     && QGL_constructExtensionFunc(table.m_glGetProgramParameterfvNV, "glGetProgramParameterfvNV")
1385     && QGL_constructExtensionFunc(table.m_glGetProgramivNV, "glGetProgramivNV")
1386     && QGL_constructExtensionFunc(table.m_glGetProgramStringNV, "glGetProgramStringNV")
1387     && QGL_constructExtensionFunc(table.m_glGetTrackMatrixivNV, "glGetTrackMatrixivNV")
1388     && QGL_constructExtensionFunc(table.m_glGetVertexAttribdvNV, "glGetVertexAttribdvNV")
1389     && QGL_constructExtensionFunc(table.m_glGetVertexAttribfvNV, "glGetVertexAttribfvNV")
1390     && QGL_constructExtensionFunc(table.m_glGetVertexAttribivNV, "glGetVertexAttribivNV")
1391     && QGL_constructExtensionFunc(table.m_glGetVertexAttribPointervNV, "glGetVertexAttribPointervNV")
1392     && QGL_constructExtensionFunc(table.m_glIsProgramNV, "glIsProgramNV")
1393     && QGL_constructExtensionFunc(table.m_glLoadProgramNV, "glLoadProgramNV")
1394     && QGL_constructExtensionFunc(table.m_glProgramParameter4fNV, "glProgramParameter4fNV")
1395     && QGL_constructExtensionFunc(table.m_glProgramParameter4fvNV, "glProgramParameter4fvNV")
1396     && QGL_constructExtensionFunc(table.m_glProgramParameters4fvNV, "glProgramParameters4fvNV")
1397     && QGL_constructExtensionFunc(table.m_glRequestResidentProgramsNV, "glRequestResidentProgramsNV")
1398     && QGL_constructExtensionFunc(table.m_glTrackMatrixNV, "glTrackMatrixNV")
1399     && QGL_constructExtensionFunc(table.m_glVertexAttribPointerNV, "glVertexAttribPointerNV")
1400     && QGL_constructExtensionFunc(table.m_glVertexAttrib1fNV, "glVertexAttrib1fNV")
1401     && QGL_constructExtensionFunc(table.m_glVertexAttrib1fvNV, "glVertexAttrib1fvNV")
1402     && QGL_constructExtensionFunc(table.m_glVertexAttrib2fNV, "glVertexAttrib2fNV")
1403     && QGL_constructExtensionFunc(table.m_glVertexAttrib2fvNV, "glVertexAttrib2fvNV")
1404     && QGL_constructExtensionFunc(table.m_glVertexAttrib3fNV, "glVertexAttrib3fNV")
1405     && QGL_constructExtensionFunc(table.m_glVertexAttrib3fvNV, "glVertexAttrib3fvNV")
1406     && QGL_constructExtensionFunc(table.m_glVertexAttrib4fNV, "glVertexAttrib4fNV")
1407     && QGL_constructExtensionFunc(table.m_glVertexAttrib4fvNV, "glVertexAttrib4fvNV")
1408     && QGL_constructExtensionFunc(table.m_glVertexAttribs1fvNV, "glVertexAttribs1fvNV")
1409     && QGL_constructExtensionFunc(table.m_glVertexAttribs2fvNV, "glVertexAttribs2fvNV")
1410     && QGL_constructExtensionFunc(table.m_glVertexAttribs3fvNV, "glVertexAttribs3fvNV")
1411     && QGL_constructExtensionFunc(table.m_glVertexAttribs4fvNV, "glVertexAttribs4fvNV");
1412
1413     if(!table.support_NV_vertex_program2)
1414     {
1415       extension_not_implemented("GL_NV_vertex_program2");
1416     }
1417   }
1418   else
1419   {
1420     table.support_NV_vertex_program2 = false;
1421     QGL_invalidateExtensionFunc(table.m_glAreProgramsResidentNV);
1422     QGL_invalidateExtensionFunc(table.m_glBindProgramNV);
1423     QGL_invalidateExtensionFunc(table.m_glDeleteProgramsNV);
1424     QGL_invalidateExtensionFunc(table.m_glExecuteProgramNV);
1425     QGL_invalidateExtensionFunc(table.m_glGenProgramsNV);
1426     QGL_invalidateExtensionFunc(table.m_glGetProgramParameterdvNV);
1427     QGL_invalidateExtensionFunc(table.m_glGetProgramParameterfvNV);
1428     QGL_invalidateExtensionFunc(table.m_glGetProgramivNV);
1429     QGL_invalidateExtensionFunc(table.m_glGetProgramStringNV);
1430     QGL_invalidateExtensionFunc(table.m_glGetTrackMatrixivNV);
1431     QGL_invalidateExtensionFunc(table.m_glGetVertexAttribdvNV);
1432     QGL_invalidateExtensionFunc(table.m_glGetVertexAttribfvNV);
1433     QGL_invalidateExtensionFunc(table.m_glGetVertexAttribivNV);
1434     QGL_invalidateExtensionFunc(table.m_glGetVertexAttribPointervNV);
1435     QGL_invalidateExtensionFunc(table.m_glIsProgramNV);
1436     QGL_invalidateExtensionFunc(table.m_glLoadProgramNV);
1437     QGL_invalidateExtensionFunc(table.m_glProgramParameter4fNV);
1438     QGL_invalidateExtensionFunc(table.m_glProgramParameter4fvNV);
1439     QGL_invalidateExtensionFunc(table.m_glProgramParameters4fvNV);
1440     QGL_invalidateExtensionFunc(table.m_glRequestResidentProgramsNV);
1441     QGL_invalidateExtensionFunc(table.m_glTrackMatrixNV);
1442     QGL_invalidateExtensionFunc(table.m_glVertexAttribPointerNV);
1443     QGL_invalidateExtensionFunc(table.m_glVertexAttrib1fNV);
1444     QGL_invalidateExtensionFunc(table.m_glVertexAttrib1fvNV);
1445     QGL_invalidateExtensionFunc(table.m_glVertexAttrib2fNV);
1446     QGL_invalidateExtensionFunc(table.m_glVertexAttrib2fvNV);
1447     QGL_invalidateExtensionFunc(table.m_glVertexAttrib3fNV);
1448     QGL_invalidateExtensionFunc(table.m_glVertexAttrib3fvNV);
1449     QGL_invalidateExtensionFunc(table.m_glVertexAttrib4fNV);
1450     QGL_invalidateExtensionFunc(table.m_glVertexAttrib4fvNV);
1451     QGL_invalidateExtensionFunc(table.m_glVertexAttribs1fvNV);
1452     QGL_invalidateExtensionFunc(table.m_glVertexAttribs2fvNV);
1453     QGL_invalidateExtensionFunc(table.m_glVertexAttribs3fvNV);
1454     QGL_invalidateExtensionFunc(table.m_glVertexAttribs4fvNV);
1455   }
1456
1457   if(QGL_ExtensionSupported("GL_NV_fragment_program"))
1458   {
1459     table.support_NV_fragment_program =
1460     QGL_constructExtensionFunc(table.m_glProgramNamedParameter4fNV, "glProgramNamedParameter4fNV")
1461     && QGL_constructExtensionFunc(table.m_glProgramNamedParameter4fvNV, "glProgramNamedParameter4fvNV")
1462     && QGL_constructExtensionFunc(table.m_glGetProgramNamedParameterfvNV, "glGetProgramNamedParameterfvNV");
1463
1464     if(!table.support_NV_fragment_program)
1465     {
1466       extension_not_implemented("GL_NV_fragment_program");
1467     }
1468   }
1469   else
1470   {
1471     table.support_NV_fragment_program = false;
1472   }
1473
1474   table.support_ARB_fragment_shader = QGL_ExtensionSupported("GL_ARB_fragment_shader");
1475   table.support_ARB_shading_language_100 = QGL_ExtensionSupported("GL_ARB_shading_language_100");
1476
1477   if(QGL_ExtensionSupported("GL_EXT_texture_filter_anisotropic"))
1478   {
1479     glGetFloatv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &g_maxTextureAnisotropy);
1480     globalOutputStream() << "Anisotropic filtering possible (max " << g_maxTextureAnisotropy << "x)\n";
1481   }
1482   else
1483   {
1484     globalOutputStream() << "No Anisotropic filtering available\n";
1485         g_maxTextureAnisotropy = 0;
1486   }
1487 }
1488
1489 void QGL_sharedContextDestroyed(OpenGLBinding& table)
1490 {
1491   QGL_clear(table);
1492 }
1493
1494
1495 void QGL_assertNoErrors(const char *file, int line)
1496 {
1497   GLenum error = GlobalOpenGL().m_glGetError();
1498   while (error != GL_NO_ERROR)
1499   {
1500     const char* errorString = reinterpret_cast<const char*>(qgluErrorString(error));
1501     if (error == GL_OUT_OF_MEMORY)
1502     {
1503       ERROR_MESSAGE("OpenGL out of memory error at " << file << ":" << line << ": " << errorString);
1504     }
1505     else
1506     {
1507       ERROR_MESSAGE("OpenGL error at " << file << ":" << line << ": " << errorString);
1508     }
1509     error = GlobalOpenGL().m_glGetError();
1510   }
1511 }
1512
1513
1514 class QglAPI
1515 {
1516   OpenGLBinding m_qgl;
1517 public:
1518   typedef OpenGLBinding Type;
1519   STRING_CONSTANT(Name, "*");
1520
1521   QglAPI()
1522   {
1523     QGL_Init(m_qgl);
1524
1525     m_qgl.assertNoErrors = &QGL_assertNoErrors;
1526   }
1527   ~QglAPI()
1528   {
1529     QGL_Shutdown(m_qgl);
1530   }
1531   OpenGLBinding* getTable()
1532   {
1533     return &m_qgl;
1534   }
1535 };
1536
1537 #include "modulesystem/singletonmodule.h"
1538 #include "modulesystem/moduleregistry.h"
1539
1540 typedef SingletonModule<QglAPI> QglModule;
1541 typedef Static<QglModule> StaticQglModule;
1542 StaticRegisterModule staticRegisterQgl(StaticQglModule::instance());