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 int   ( WINAPI * qwglChoosePixelFormat )(HDC, CONST PIXELFORMATDESCRIPTOR *);
  53 int   ( WINAPI * qwglDescribePixelFormat) (HDC, int, UINT, LPPIXELFORMATDESCRIPTOR);
  54 int   ( WINAPI * qwglGetPixelFormat)(HDC);
  55 BOOL  ( WINAPI * qwglSetPixelFormat)(HDC, int, CONST PIXELFORMATDESCRIPTOR *);
  56 BOOL  ( WINAPI * qwglSwapBuffers)(HDC);
  57
  58 BOOL  ( WINAPI * qwglCopyContext)(HGLRC, HGLRC, UINT);
  59 HGLRC ( WINAPI * qwglCreateContext)(HDC);
  60 HGLRC ( WINAPI * qwglCreateLayerContext)(HDC, int);
  61 BOOL  ( WINAPI * qwglDeleteContext)(HGLRC);
  62 HGLRC ( WINAPI * qwglGetCurrentContext)(VOID);
  63 HDC   ( WINAPI * qwglGetCurrentDC)(VOID);
  64 PROC  ( WINAPI * qwglGetProcAddress)(LPCSTR);
  65 BOOL  ( WINAPI * qwglMakeCurrent)(HDC, HGLRC);
  66 BOOL  ( WINAPI * qwglShareLists)(HGLRC, HGLRC);
  67 BOOL  ( WINAPI * qwglUseFontBitmaps)(HDC, DWORD, DWORD, DWORD);
  68
  69 BOOL  ( WINAPI * qwglUseFontOutlines)(HDC, DWORD, DWORD, DWORD, FLOAT,
  70                                       FLOAT, int, LPGLYPHMETRICSFLOAT);
  71
  72 BOOL ( WINAPI * qwglDescribeLayerPlane)(HDC, int, int, UINT, LPLAYERPLANEDESCRIPTOR);
  73 int  ( WINAPI * qwglSetLayerPaletteEntries)(HDC, int, int, int, CONST COLORREF *);
  74 int  ( WINAPI * qwglGetLayerPaletteEntries)(HDC, int, int, int, COLORREF *);
  75 BOOL ( WINAPI * qwglRealizeLayerPalette)(HDC, int, BOOL);
  76 BOOL ( WINAPI * qwglSwapLayerBuffers)(HDC, UINT);
  77
  78 #elif defined (XWINDOWS)
  79
  80 #include <GL/glx.h>
  81 #include <dlfcn.h>
  82 #include <gdk/gdkx.h>
  83
  84 XVisualInfo* (*qglXChooseVisual)(Display *dpy, int screen, int *attribList);
  85 GLXContext   (*qglXCreateContext)(Display *dpy, XVisualInfo *vis, GLXContext shareList, Bool direct);
  86 void         (*qglXDestroyContext)(Display *dpy, GLXContext ctx);
  87 Bool         (*qglXMakeCurrent)(Display *dpy, GLXDrawable drawable, GLXContext ctx);
  88 void         (*qglXCopyContext)(Display *dpy, GLXContext src, GLXContext dst, GLuint mask);
  89 void         (*qglXSwapBuffers)( Display *dpy, GLXDrawable drawable );
  90 GLXPixmap    (*qglXCreateGLXPixmap)( Display *dpy, XVisualInfo *visual, Pixmap pixmap );
  91 void         (*qglXDestroyGLXPixmap)( Display *dpy, GLXPixmap pixmap );
  92 Bool         (*qglXQueryExtension)( Display *dpy, int *errorb, int *event );
  93 Bool         (*qglXQueryVersion)( Display *dpy, int *maj, int *min );
  94 Bool         (*qglXIsDirect)( Display *dpy, GLXContext ctx );
  95 int          (*qglXGetConfig)( Display *dpy, XVisualInfo *visual, int attrib, int *value );
  96 GLXContext   (*qglXGetCurrentContext)( void );
  97 GLXDrawable  (*qglXGetCurrentDrawable)( void );
  98 void         (*qglXWaitGL)( void );
  99 void         (*qglXWaitX)( void );
 100 void         (*qglXUseXFont)( Font font, int first, int count, int list );
 101 void*        (*qglXGetProcAddressARB) (const GLubyte *procName);
 102 typedef void* (*glXGetProcAddressARBProc) (const GLubyte *procName);
 103
 104 #else
 105 #error "unsupported platform"
 106 #endif
 107
 108
 109 void QGL_Shutdown(OpenGLBinding& table)
 110 {
 111   globalOutputStream() << "Shutting down OpenGL module...";
 112
 113 #if defined(WIN32)
 114   qwglCopyContext              = 0;
 115   qwglCreateContext            = 0;
 116   qwglCreateLayerContext       = 0;
 117   qwglDeleteContext            = 0;
 118   qwglDescribeLayerPlane       = 0;
 119   qwglGetCurrentContext        = 0;
 120   qwglGetCurrentDC             = 0;
 121   qwglGetLayerPaletteEntries   = 0;
 122   qwglGetProcAddress           = 0;
 123   qwglMakeCurrent              = 0;
 124   qwglRealizeLayerPalette      = 0;
 125   qwglSetLayerPaletteEntries   = 0;
 126   qwglShareLists               = 0;
 127   qwglSwapLayerBuffers         = 0;
 128   qwglUseFontBitmaps           = 0;
 129   qwglUseFontOutlines          = 0;
 130
 131   qwglChoosePixelFormat        = 0;
 132   qwglDescribePixelFormat      = 0;
 133   qwglGetPixelFormat           = 0;
 134   qwglSetPixelFormat           = 0;
 135   qwglSwapBuffers              = 0;
 136 #elif defined(XWINDOWS)
 137   qglXChooseVisual             = 0;
 138   qglXCreateContext            = 0;
 139   qglXDestroyContext           = 0;
 140   qglXMakeCurrent              = 0;
 141   qglXCopyContext              = 0;
 142   qglXSwapBuffers              = 0;
 143   qglXCreateGLXPixmap          = 0;
 144   qglXDestroyGLXPixmap         = 0;
 145   qglXQueryExtension           = 0;
 146   qglXQueryVersion             = 0;
 147   qglXIsDirect                 = 0;
 148   qglXGetConfig                = 0;
 149   qglXGetCurrentContext        = 0;
 150   qglXGetCurrentDrawable       = 0;
 151   qglXWaitGL                   = 0;
 152   qglXWaitX                    = 0;
 153   qglXUseXFont                 = 0;
 154   qglXGetProcAddressARB        = 0;
 155 #else
 156 #error "unsupported platform"
 157 #endif
 158
 159   globalOutputStream() << "Done.\n";
 160 }
 161
 162
 163 typedef struct glu_error_struct
 164 {
 165     GLenum     errnum;
 166     const char *errstr;
 167 } GLU_ERROR_STRUCT;
 168
 169 GLU_ERROR_STRUCT glu_errlist[] = {
 170   {GL_NO_ERROR, "GL_NO_ERROR - no error"},
 171   {GL_INVALID_ENUM, "GL_INVALID_ENUM - An unacceptable value is specified for an enumerated argument."},
 172   {GL_INVALID_VALUE, "GL_INVALID_VALUE - A numeric argument is out of range."},
 173   {GL_INVALID_OPERATION, "GL_INVALID_OPERATION - The specified operation is not allowed in the current state."},
 174   {GL_STACK_OVERFLOW, "GL_STACK_OVERFLOW - Function would cause a stack overflow."},
 175   {GL_STACK_UNDERFLOW, "GL_STACK_UNDERFLOW - Function would cause a stack underflow."},
 176   {GL_OUT_OF_MEMORY, "GL_OUT_OF_MEMORY - There is not enough memory left to execute the function."},
 177   {0, 0}
 178 };
 179
 180 const GLubyte* qgluErrorString(GLenum errCode )
 181 {
 182   int search = 0;
 183   for (search = 0; glu_errlist[search].errstr; search++)
 184   {
 185     if (errCode == glu_errlist[search].errnum)
 186       return (const GLubyte *)glu_errlist[search].errstr;
 187   } //end for
 188   return (const GLubyte *)"Unknown error";
 189 }
 190
 191
 192 void glInvalidFunction()
 193 {
 194   ERROR_MESSAGE("calling an invalid OpenGL function");
 195 }
 196
 197 #define EXTENSIONS_ENABLED 1
 198
 199 bool QGL_ExtensionSupported(const char* extension)
 200 {
 201 #if EXTENSIONS_ENABLED
 202   const GLubyte *extensions = 0;
 203   const GLubyte *start;
 204   GLubyte *where, *terminator;
 205
 206   // Extension names should not have spaces.
 207   where = (GLubyte *) strchr (extension, ' ');
 208   if (where || *extension == '\0')
 209     return false;
 210
 211   extensions = GlobalOpenGL().m_glGetString (GL_EXTENSIONS);
 212 #ifndef __APPLE__
 213   if (!extensions)
 214     return false;
 215 #endif
 216
 217   // It takes a bit of care to be fool-proof about parsing the
 218   // OpenGL extensions string. Don't be fooled by sub-strings, etc.
 219   for (start = extensions; ;)
 220   {
 221     where = (GLubyte *) strstr ((const char *) start, extension);
 222     if (!where)
 223       break;
 224
 225     terminator = where + strlen (extension);
 226     if (where == start || *(where - 1) == ' ')
 227       if (*terminator == ' ' || *terminator == '\0')
 228         return true;
 229
 230     start = terminator;
 231   }
 232 #endif
 233
 234   return false;
 235 }
 236
 237 typedef int (QGL_DLLEXPORT *QGLFunctionPointer)();
 238
 239 QGLFunctionPointer QGL_getExtensionFunc(const char* symbol)
 240 {
 241 #if defined(XWINDOWS)
 242   //ASSERT_NOTNULL(qglXGetProcAddressARB);
 243   if (qglXGetProcAddressARB == 0)
 244   {
 245     return reinterpret_cast<QGLFunctionPointer>(glInvalidFunction);
 246   }
 247   else
 248   {
 249     return (QGLFunctionPointer)qglXGetProcAddressARB(reinterpret_cast<const GLubyte*>(symbol));
 250   }
 251 #elif defined(WIN32)
 252   ASSERT_NOTNULL(qwglGetProcAddress);
 253   return qwglGetProcAddress(symbol);
 254 #else
 255 #error "unsupported platform"
 256 #endif
 257 }
 258
 259
 260 template<typename Func>
 261 bool QGL_constructExtensionFunc(Func& func, const char* symbol)
 262 {
 263   func = reinterpret_cast<Func>(QGL_getExtensionFunc(symbol));
 264   return func != 0;
 265 }
 266
 267 template<typename Func>
 268 void QGL_invalidateExtensionFunc(Func& func)
 269 {
 270   func = reinterpret_cast<Func>(glInvalidFunction);
 271 }
 272
 273 void QGL_clear(OpenGLBinding& table)
 274 {
 275   QGL_invalidateExtensionFunc(table.m_glAccum);
 276   QGL_invalidateExtensionFunc(table.m_glAlphaFunc);
 277   QGL_invalidateExtensionFunc(table.m_glAreTexturesResident);
 278   QGL_invalidateExtensionFunc(table.m_glArrayElement);
 279   QGL_invalidateExtensionFunc(table.m_glBegin);
 280   QGL_invalidateExtensionFunc(table.m_glBindTexture);
 281   QGL_invalidateExtensionFunc(table.m_glBitmap);
 282   QGL_invalidateExtensionFunc(table.m_glBlendFunc);
 283   QGL_invalidateExtensionFunc(table.m_glCallList);
 284   QGL_invalidateExtensionFunc(table.m_glCallLists);
 285   QGL_invalidateExtensionFunc(table.m_glClear);
 286   QGL_invalidateExtensionFunc(table.m_glClearAccum);
 287   QGL_invalidateExtensionFunc(table.m_glClearColor);
 288   QGL_invalidateExtensionFunc(table.m_glClearDepth);
 289   QGL_invalidateExtensionFunc(table.m_glClearIndex);
 290   QGL_invalidateExtensionFunc(table.m_glClearStencil);
 291   QGL_invalidateExtensionFunc(table.m_glClipPlane);
 292   QGL_invalidateExtensionFunc(table.m_glColor3b);
 293   QGL_invalidateExtensionFunc(table.m_glColor3bv);
 294   QGL_invalidateExtensionFunc(table.m_glColor3d);
 295   QGL_invalidateExtensionFunc(table.m_glColor3dv);
 296   QGL_invalidateExtensionFunc(table.m_glColor3f);
 297   QGL_invalidateExtensionFunc(table.m_glColor3fv);
 298   QGL_invalidateExtensionFunc(table.m_glColor3i);
 299   QGL_invalidateExtensionFunc(table.m_glColor3iv);
 300   QGL_invalidateExtensionFunc(table.m_glColor3s);
 301   QGL_invalidateExtensionFunc(table.m_glColor3sv);
 302   QGL_invalidateExtensionFunc(table.m_glColor3ub);
 303   QGL_invalidateExtensionFunc(table.m_glColor3ubv);
 304   QGL_invalidateExtensionFunc(table.m_glColor3ui);
 305   QGL_invalidateExtensionFunc(table.m_glColor3uiv);
 306   QGL_invalidateExtensionFunc(table.m_glColor3us);
 307   QGL_invalidateExtensionFunc(table.m_glColor3usv);
 308   QGL_invalidateExtensionFunc(table.m_glColor4b);
 309   QGL_invalidateExtensionFunc(table.m_glColor4bv);
 310   QGL_invalidateExtensionFunc(table.m_glColor4d);
 311   QGL_invalidateExtensionFunc(table.m_glColor4dv);
 312   QGL_invalidateExtensionFunc(table.m_glColor4f);
 313   QGL_invalidateExtensionFunc(table.m_glColor4fv);
 314   QGL_invalidateExtensionFunc(table.m_glColor4i);
 315   QGL_invalidateExtensionFunc(table.m_glColor4iv);
 316   QGL_invalidateExtensionFunc(table.m_glColor4s);
 317   QGL_invalidateExtensionFunc(table.m_glColor4sv);
 318   QGL_invalidateExtensionFunc(table.m_glColor4ub);
 319   QGL_invalidateExtensionFunc(table.m_glColor4ubv);
 320   QGL_invalidateExtensionFunc(table.m_glColor4ui);
 321   QGL_invalidateExtensionFunc(table.m_glColor4uiv);
 322   QGL_invalidateExtensionFunc(table.m_glColor4us);
 323   QGL_invalidateExtensionFunc(table.m_glColor4usv);
 324   QGL_invalidateExtensionFunc(table.m_glColorMask);
 325   QGL_invalidateExtensionFunc(table.m_glColorMaterial);
 326   QGL_invalidateExtensionFunc(table.m_glColorPointer);
 327   QGL_invalidateExtensionFunc(table.m_glCopyPixels);
 328   QGL_invalidateExtensionFunc(table.m_glCopyTexImage1D);
 329   QGL_invalidateExtensionFunc(table.m_glCopyTexImage2D);
 330   QGL_invalidateExtensionFunc(table.m_glCopyTexSubImage1D);
 331   QGL_invalidateExtensionFunc(table.m_glCopyTexSubImage2D);
 332   QGL_invalidateExtensionFunc(table.m_glCullFace);
 333   QGL_invalidateExtensionFunc(table.m_glDeleteLists);
 334   QGL_invalidateExtensionFunc(table.m_glDeleteTextures);
 335   QGL_invalidateExtensionFunc(table.m_glDepthFunc);
 336   QGL_invalidateExtensionFunc(table.m_glDepthMask);
 337   QGL_invalidateExtensionFunc(table.m_glDepthRange);
 338   QGL_invalidateExtensionFunc(table.m_glDisable);
 339   QGL_invalidateExtensionFunc(table.m_glDisableClientState);
 340   QGL_invalidateExtensionFunc(table.m_glDrawArrays);
 341   QGL_invalidateExtensionFunc(table.m_glDrawBuffer);
 342   QGL_invalidateExtensionFunc(table.m_glDrawElements);
 343   QGL_invalidateExtensionFunc(table.m_glDrawPixels);
 344   QGL_invalidateExtensionFunc(table.m_glEdgeFlag);
 345   QGL_invalidateExtensionFunc(table.m_glEdgeFlagPointer);
 346   QGL_invalidateExtensionFunc(table.m_glEdgeFlagv);
 347   QGL_invalidateExtensionFunc(table.m_glEnable);
 348   QGL_invalidateExtensionFunc(table.m_glEnableClientState);
 349   QGL_invalidateExtensionFunc(table.m_glEnd);
 350   QGL_invalidateExtensionFunc(table.m_glEndList);
 351   QGL_invalidateExtensionFunc(table.m_glEvalCoord1d);
 352   QGL_invalidateExtensionFunc(table.m_glEvalCoord1dv);
 353   QGL_invalidateExtensionFunc(table.m_glEvalCoord1f);
 354   QGL_invalidateExtensionFunc(table.m_glEvalCoord1fv);
 355   QGL_invalidateExtensionFunc(table.m_glEvalCoord2d);
 356   QGL_invalidateExtensionFunc(table.m_glEvalCoord2dv);
 357   QGL_invalidateExtensionFunc(table.m_glEvalCoord2f);
 358   QGL_invalidateExtensionFunc(table.m_glEvalCoord2fv);
 359   QGL_invalidateExtensionFunc(table.m_glEvalMesh1);
 360   QGL_invalidateExtensionFunc(table.m_glEvalMesh2);
 361   QGL_invalidateExtensionFunc(table.m_glEvalPoint1);
 362   QGL_invalidateExtensionFunc(table.m_glEvalPoint2);
 363   QGL_invalidateExtensionFunc(table.m_glFeedbackBuffer);
 364   QGL_invalidateExtensionFunc(table.m_glFinish);
 365   QGL_invalidateExtensionFunc(table.m_glFlush);
 366   QGL_invalidateExtensionFunc(table.m_glFogf);
 367   QGL_invalidateExtensionFunc(table.m_glFogfv);
 368   QGL_invalidateExtensionFunc(table.m_glFogi);
 369   QGL_invalidateExtensionFunc(table.m_glFogiv);
 370   QGL_invalidateExtensionFunc(table.m_glFrontFace);
 371   QGL_invalidateExtensionFunc(table.m_glFrustum);
 372   QGL_invalidateExtensionFunc(table.m_glGenLists);
 373   QGL_invalidateExtensionFunc(table.m_glGenTextures);
 374   QGL_invalidateExtensionFunc(table.m_glGetBooleanv);
 375   QGL_invalidateExtensionFunc(table.m_glGetClipPlane);
 376   QGL_invalidateExtensionFunc(table.m_glGetDoublev);
 377   QGL_invalidateExtensionFunc(table.m_glGetError);
 378   QGL_invalidateExtensionFunc(table.m_glGetFloatv);
 379   QGL_invalidateExtensionFunc(table.m_glGetIntegerv);
 380   QGL_invalidateExtensionFunc(table.m_glGetLightfv);
 381   QGL_invalidateExtensionFunc(table.m_glGetLightiv);
 382   QGL_invalidateExtensionFunc(table.m_glGetMapdv);
 383   QGL_invalidateExtensionFunc(table.m_glGetMapfv);
 384   QGL_invalidateExtensionFunc(table.m_glGetMapiv);
 385   QGL_invalidateExtensionFunc(table.m_glGetMaterialfv);
 386   QGL_invalidateExtensionFunc(table.m_glGetMaterialiv);
 387   QGL_invalidateExtensionFunc(table.m_glGetPixelMapfv);
 388   QGL_invalidateExtensionFunc(table.m_glGetPixelMapuiv);
 389   QGL_invalidateExtensionFunc(table.m_glGetPixelMapusv);
 390   QGL_invalidateExtensionFunc(table.m_glGetPointerv);
 391   QGL_invalidateExtensionFunc(table.m_glGetPolygonStipple);
 392   table.m_glGetString = glGetString;
 393   QGL_invalidateExtensionFunc(table.m_glGetTexEnvfv);
 394   QGL_invalidateExtensionFunc(table.m_glGetTexEnviv);
 395   QGL_invalidateExtensionFunc(table.m_glGetTexGendv);
 396   QGL_invalidateExtensionFunc(table.m_glGetTexGenfv);
 397   QGL_invalidateExtensionFunc(table.m_glGetTexGeniv);
 398   QGL_invalidateExtensionFunc(table.m_glGetTexImage);
 399   QGL_invalidateExtensionFunc(table.m_glGetTexLevelParameterfv);
 400   QGL_invalidateExtensionFunc(table.m_glGetTexLevelParameteriv);
 401   QGL_invalidateExtensionFunc(table.m_glGetTexParameterfv);
 402   QGL_invalidateExtensionFunc(table.m_glGetTexParameteriv);
 403   QGL_invalidateExtensionFunc(table.m_glHint);
 404   QGL_invalidateExtensionFunc(table.m_glIndexMask);
 405   QGL_invalidateExtensionFunc(table.m_glIndexPointer);
 406   QGL_invalidateExtensionFunc(table.m_glIndexd);
 407   QGL_invalidateExtensionFunc(table.m_glIndexdv);
 408   QGL_invalidateExtensionFunc(table.m_glIndexf);
 409   QGL_invalidateExtensionFunc(table.m_glIndexfv);
 410   QGL_invalidateExtensionFunc(table.m_glIndexi);
 411   QGL_invalidateExtensionFunc(table.m_glIndexiv);
 412   QGL_invalidateExtensionFunc(table.m_glIndexs);
 413   QGL_invalidateExtensionFunc(table.m_glIndexsv);
 414   QGL_invalidateExtensionFunc(table.m_glIndexub);
 415   QGL_invalidateExtensionFunc(table.m_glIndexubv);
 416   QGL_invalidateExtensionFunc(table.m_glInitNames);
 417   QGL_invalidateExtensionFunc(table.m_glInterleavedArrays);
 418   QGL_invalidateExtensionFunc(table.m_glIsEnabled);
 419   QGL_invalidateExtensionFunc(table.m_glIsList);
 420   QGL_invalidateExtensionFunc(table.m_glIsTexture);
 421   QGL_invalidateExtensionFunc(table.m_glLightModelf);
 422   QGL_invalidateExtensionFunc(table.m_glLightModelfv);
 423   QGL_invalidateExtensionFunc(table.m_glLightModeli);
 424   QGL_invalidateExtensionFunc(table.m_glLightModeliv);
 425   QGL_invalidateExtensionFunc(table.m_glLightf);
 426   QGL_invalidateExtensionFunc(table.m_glLightfv);
 427   QGL_invalidateExtensionFunc(table.m_glLighti);
 428   QGL_invalidateExtensionFunc(table.m_glLightiv);
 429   QGL_invalidateExtensionFunc(table.m_glLineStipple);
 430   QGL_invalidateExtensionFunc(table.m_glLineWidth);
 431   QGL_invalidateExtensionFunc(table.m_glListBase);
 432   QGL_invalidateExtensionFunc(table.m_glLoadIdentity);
 433   QGL_invalidateExtensionFunc(table.m_glLoadMatrixd);
 434   QGL_invalidateExtensionFunc(table.m_glLoadMatrixf);
 435   QGL_invalidateExtensionFunc(table.m_glLoadName);
 436   QGL_invalidateExtensionFunc(table.m_glLogicOp);
 437   QGL_invalidateExtensionFunc(table.m_glMap1d);
 438   QGL_invalidateExtensionFunc(table.m_glMap1f);
 439   QGL_invalidateExtensionFunc(table.m_glMap2d);
 440   QGL_invalidateExtensionFunc(table.m_glMap2f);
 441   QGL_invalidateExtensionFunc(table.m_glMapGrid1d);
 442   QGL_invalidateExtensionFunc(table.m_glMapGrid1f);
 443   QGL_invalidateExtensionFunc(table.m_glMapGrid2d);
 444   QGL_invalidateExtensionFunc(table.m_glMapGrid2f);
 445   QGL_invalidateExtensionFunc(table.m_glMaterialf);
 446   QGL_invalidateExtensionFunc(table.m_glMaterialfv);
 447   QGL_invalidateExtensionFunc(table.m_glMateriali);
 448   QGL_invalidateExtensionFunc(table.m_glMaterialiv);
 449   QGL_invalidateExtensionFunc(table.m_glMatrixMode);
 450   QGL_invalidateExtensionFunc(table.m_glMultMatrixd);
 451   QGL_invalidateExtensionFunc(table.m_glMultMatrixf);
 452   QGL_invalidateExtensionFunc(table.m_glNewList);
 453   QGL_invalidateExtensionFunc(table.m_glNormal3b);
 454   QGL_invalidateExtensionFunc(table.m_glNormal3bv);
 455   QGL_invalidateExtensionFunc(table.m_glNormal3d);
 456   QGL_invalidateExtensionFunc(table.m_glNormal3dv);
 457   QGL_invalidateExtensionFunc(table.m_glNormal3f);
 458   QGL_invalidateExtensionFunc(table.m_glNormal3fv);
 459   QGL_invalidateExtensionFunc(table.m_glNormal3i);
 460   QGL_invalidateExtensionFunc(table.m_glNormal3iv);
 461   QGL_invalidateExtensionFunc(table.m_glNormal3s);
 462   QGL_invalidateExtensionFunc(table.m_glNormal3sv);
 463   QGL_invalidateExtensionFunc(table.m_glNormalPointer);
 464   QGL_invalidateExtensionFunc(table.m_glOrtho);
 465   QGL_invalidateExtensionFunc(table.m_glPassThrough);
 466   QGL_invalidateExtensionFunc(table.m_glPixelMapfv);
 467   QGL_invalidateExtensionFunc(table.m_glPixelMapuiv);
 468   QGL_invalidateExtensionFunc(table.m_glPixelMapusv);
 469   QGL_invalidateExtensionFunc(table.m_glPixelStoref);
 470   QGL_invalidateExtensionFunc(table.m_glPixelStorei);
 471   QGL_invalidateExtensionFunc(table.m_glPixelTransferf);
 472   QGL_invalidateExtensionFunc(table.m_glPixelTransferi);
 473   QGL_invalidateExtensionFunc(table.m_glPixelZoom);
 474   QGL_invalidateExtensionFunc(table.m_glPointSize);
 475   QGL_invalidateExtensionFunc(table.m_glPolygonMode);
 476   QGL_invalidateExtensionFunc(table.m_glPolygonOffset);
 477   QGL_invalidateExtensionFunc(table.m_glPolygonStipple);
 478   QGL_invalidateExtensionFunc(table.m_glPopAttrib);
 479   QGL_invalidateExtensionFunc(table.m_glPopClientAttrib);
 480   QGL_invalidateExtensionFunc(table.m_glPopMatrix);
 481   QGL_invalidateExtensionFunc(table.m_glPopName);
 482   QGL_invalidateExtensionFunc(table.m_glPrioritizeTextures);
 483   QGL_invalidateExtensionFunc(table.m_glPushAttrib);
 484   QGL_invalidateExtensionFunc(table.m_glPushClientAttrib);
 485   QGL_invalidateExtensionFunc(table.m_glPushMatrix);
 486   QGL_invalidateExtensionFunc(table.m_glPushName);
 487   QGL_invalidateExtensionFunc(table.m_glRasterPos2d);
 488   QGL_invalidateExtensionFunc(table.m_glRasterPos2dv);
 489   QGL_invalidateExtensionFunc(table.m_glRasterPos2f);
 490   QGL_invalidateExtensionFunc(table.m_glRasterPos2fv);
 491   QGL_invalidateExtensionFunc(table.m_glRasterPos2i);
 492   QGL_invalidateExtensionFunc(table.m_glRasterPos2iv);
 493   QGL_invalidateExtensionFunc(table.m_glRasterPos2s);
 494   QGL_invalidateExtensionFunc(table.m_glRasterPos2sv);
 495   QGL_invalidateExtensionFunc(table.m_glRasterPos3d);
 496   QGL_invalidateExtensionFunc(table.m_glRasterPos3dv);
 497   QGL_invalidateExtensionFunc(table.m_glRasterPos3f);
 498   QGL_invalidateExtensionFunc(table.m_glRasterPos3fv);
 499   QGL_invalidateExtensionFunc(table.m_glRasterPos3i);
 500   QGL_invalidateExtensionFunc(table.m_glRasterPos3iv);
 501   QGL_invalidateExtensionFunc(table.m_glRasterPos3s);
 502   QGL_invalidateExtensionFunc(table.m_glRasterPos3sv);
 503   QGL_invalidateExtensionFunc(table.m_glRasterPos4d);
 504   QGL_invalidateExtensionFunc(table.m_glRasterPos4dv);
 505   QGL_invalidateExtensionFunc(table.m_glRasterPos4f);
 506   QGL_invalidateExtensionFunc(table.m_glRasterPos4fv);
 507   QGL_invalidateExtensionFunc(table.m_glRasterPos4i);
 508   QGL_invalidateExtensionFunc(table.m_glRasterPos4iv);
 509   QGL_invalidateExtensionFunc(table.m_glRasterPos4s);
 510   QGL_invalidateExtensionFunc(table.m_glRasterPos4sv);
 511   QGL_invalidateExtensionFunc(table.m_glReadBuffer);
 512   QGL_invalidateExtensionFunc(table.m_glReadPixels);
 513   QGL_invalidateExtensionFunc(table.m_glRectd);
 514   QGL_invalidateExtensionFunc(table.m_glRectdv);
 515   QGL_invalidateExtensionFunc(table.m_glRectf);
 516   QGL_invalidateExtensionFunc(table.m_glRectfv);
 517   QGL_invalidateExtensionFunc(table.m_glRecti);
 518   QGL_invalidateExtensionFunc(table.m_glRectiv);
 519   QGL_invalidateExtensionFunc(table.m_glRects);
 520   QGL_invalidateExtensionFunc(table.m_glRectsv);
 521   QGL_invalidateExtensionFunc(table.m_glRenderMode);
 522   QGL_invalidateExtensionFunc(table.m_glRotated);
 523   QGL_invalidateExtensionFunc(table.m_glRotatef);
 524   QGL_invalidateExtensionFunc(table.m_glScaled);
 525   QGL_invalidateExtensionFunc(table.m_glScalef);
 526   QGL_invalidateExtensionFunc(table.m_glScissor);
 527   QGL_invalidateExtensionFunc(table.m_glSelectBuffer);
 528   QGL_invalidateExtensionFunc(table.m_glShadeModel);
 529   QGL_invalidateExtensionFunc(table.m_glStencilFunc);
 530   QGL_invalidateExtensionFunc(table.m_glStencilMask);
 531   QGL_invalidateExtensionFunc(table.m_glStencilOp);
 532   QGL_invalidateExtensionFunc(table.m_glTexCoord1d);
 533   QGL_invalidateExtensionFunc(table.m_glTexCoord1dv);
 534   QGL_invalidateExtensionFunc(table.m_glTexCoord1f);
 535   QGL_invalidateExtensionFunc(table.m_glTexCoord1fv);
 536   QGL_invalidateExtensionFunc(table.m_glTexCoord1i);
 537   QGL_invalidateExtensionFunc(table.m_glTexCoord1iv);
 538   QGL_invalidateExtensionFunc(table.m_glTexCoord1s);
 539   QGL_invalidateExtensionFunc(table.m_glTexCoord1sv);
 540   QGL_invalidateExtensionFunc(table.m_glTexCoord2d);
 541   QGL_invalidateExtensionFunc(table.m_glTexCoord2dv);
 542   QGL_invalidateExtensionFunc(table.m_glTexCoord2f);
 543   QGL_invalidateExtensionFunc(table.m_glTexCoord2fv);
 544   QGL_invalidateExtensionFunc(table.m_glTexCoord2i);
 545   QGL_invalidateExtensionFunc(table.m_glTexCoord2iv);
 546   QGL_invalidateExtensionFunc(table.m_glTexCoord2s);
 547   QGL_invalidateExtensionFunc(table.m_glTexCoord2sv);
 548   QGL_invalidateExtensionFunc(table.m_glTexCoord3d);
 549   QGL_invalidateExtensionFunc(table.m_glTexCoord3dv);
 550   QGL_invalidateExtensionFunc(table.m_glTexCoord3f);
 551   QGL_invalidateExtensionFunc(table.m_glTexCoord3fv);
 552   QGL_invalidateExtensionFunc(table.m_glTexCoord3i);
 553   QGL_invalidateExtensionFunc(table.m_glTexCoord3iv);
 554   QGL_invalidateExtensionFunc(table.m_glTexCoord3s);
 555   QGL_invalidateExtensionFunc(table.m_glTexCoord3sv);
 556   QGL_invalidateExtensionFunc(table.m_glTexCoord4d);
 557   QGL_invalidateExtensionFunc(table.m_glTexCoord4dv);
 558   QGL_invalidateExtensionFunc(table.m_glTexCoord4f);
 559   QGL_invalidateExtensionFunc(table.m_glTexCoord4fv);
 560   QGL_invalidateExtensionFunc(table.m_glTexCoord4i);
 561   QGL_invalidateExtensionFunc(table.m_glTexCoord4iv);
 562   QGL_invalidateExtensionFunc(table.m_glTexCoord4s);
 563   QGL_invalidateExtensionFunc(table.m_glTexCoord4sv);
 564   QGL_invalidateExtensionFunc(table.m_glTexCoordPointer);
 565   QGL_invalidateExtensionFunc(table.m_glTexEnvf);
 566   QGL_invalidateExtensionFunc(table.m_glTexEnvfv);
 567   QGL_invalidateExtensionFunc(table.m_glTexEnvi);
 568   QGL_invalidateExtensionFunc(table.m_glTexEnviv);
 569   QGL_invalidateExtensionFunc(table.m_glTexGend);
 570   QGL_invalidateExtensionFunc(table.m_glTexGendv);
 571   QGL_invalidateExtensionFunc(table.m_glTexGenf);
 572   QGL_invalidateExtensionFunc(table.m_glTexGenfv);
 573   QGL_invalidateExtensionFunc(table.m_glTexGeni);
 574   QGL_invalidateExtensionFunc(table.m_glTexGeniv);
 575   QGL_invalidateExtensionFunc(table.m_glTexImage1D);
 576   QGL_invalidateExtensionFunc(table.m_glTexImage2D);
 577   QGL_invalidateExtensionFunc(table.m_glTexParameterf);
 578   QGL_invalidateExtensionFunc(table.m_glTexParameterfv);
 579   QGL_invalidateExtensionFunc(table.m_glTexParameteri);
 580   QGL_invalidateExtensionFunc(table.m_glTexParameteriv);
 581   QGL_invalidateExtensionFunc(table.m_glTexSubImage1D);
 582   QGL_invalidateExtensionFunc(table.m_glTexSubImage2D);
 583   QGL_invalidateExtensionFunc(table.m_glTranslated);
 584   QGL_invalidateExtensionFunc(table.m_glTranslatef);
 585   QGL_invalidateExtensionFunc(table.m_glVertex2d);
 586   QGL_invalidateExtensionFunc(table.m_glVertex2dv);
 587   QGL_invalidateExtensionFunc(table.m_glVertex2f);
 588   QGL_invalidateExtensionFunc(table.m_glVertex2fv);
 589   QGL_invalidateExtensionFunc(table.m_glVertex2i);
 590   QGL_invalidateExtensionFunc(table.m_glVertex2iv);
 591   QGL_invalidateExtensionFunc(table.m_glVertex2s);
 592   QGL_invalidateExtensionFunc(table.m_glVertex2sv);
 593   QGL_invalidateExtensionFunc(table.m_glVertex3d);
 594   QGL_invalidateExtensionFunc(table.m_glVertex3dv);
 595   QGL_invalidateExtensionFunc(table.m_glVertex3f);
 596   QGL_invalidateExtensionFunc(table.m_glVertex3fv);
 597   QGL_invalidateExtensionFunc(table.m_glVertex3i);
 598   QGL_invalidateExtensionFunc(table.m_glVertex3iv);
 599   QGL_invalidateExtensionFunc(table.m_glVertex3s);
 600   QGL_invalidateExtensionFunc(table.m_glVertex3sv);
 601   QGL_invalidateExtensionFunc(table.m_glVertex4d);
 602   QGL_invalidateExtensionFunc(table.m_glVertex4dv);
 603   QGL_invalidateExtensionFunc(table.m_glVertex4f);
 604   QGL_invalidateExtensionFunc(table.m_glVertex4fv);
 605   QGL_invalidateExtensionFunc(table.m_glVertex4i);
 606   QGL_invalidateExtensionFunc(table.m_glVertex4iv);
 607   QGL_invalidateExtensionFunc(table.m_glVertex4s);
 608   QGL_invalidateExtensionFunc(table.m_glVertex4sv);
 609   QGL_invalidateExtensionFunc(table.m_glVertexPointer);
 610   QGL_invalidateExtensionFunc(table.m_glViewport);
 611 }
 612
 613 int QGL_Init(OpenGLBinding& table)
 614 {
 615   QGL_clear(table);
 616
 617 #if defined(WIN32)
 618   qwglCopyContext              = wglCopyContext;
 619   qwglCreateContext            = wglCreateContext;
 620   qwglCreateLayerContext       = wglCreateLayerContext;
 621   qwglDeleteContext            = wglDeleteContext;
 622   qwglDescribeLayerPlane       = wglDescribeLayerPlane;
 623   qwglGetCurrentContext        = wglGetCurrentContext;
 624   qwglGetCurrentDC             = wglGetCurrentDC;
 625   qwglGetLayerPaletteEntries   = wglGetLayerPaletteEntries;
 626   qwglGetProcAddress           = wglGetProcAddress;
 627   qwglMakeCurrent              = wglMakeCurrent;
 628   qwglRealizeLayerPalette      = wglRealizeLayerPalette;
 629   qwglSetLayerPaletteEntries   = wglSetLayerPaletteEntries;
 630   qwglShareLists               = wglShareLists;
 631   qwglSwapLayerBuffers         = wglSwapLayerBuffers;
 632   qwglUseFontBitmaps           = wglUseFontBitmapsA;
 633   qwglUseFontOutlines          = wglUseFontOutlinesA;
 634
 635   qwglChoosePixelFormat        = ChoosePixelFormat;
 636   qwglDescribePixelFormat      = DescribePixelFormat;
 637   qwglGetPixelFormat           = GetPixelFormat;
 638   qwglSetPixelFormat           = SetPixelFormat;
 639   qwglSwapBuffers              = SwapBuffers;
 640 #elif defined(XWINDOWS)
 641   qglXChooseVisual             = glXChooseVisual;
 642   qglXCreateContext            = glXCreateContext;
 643   qglXDestroyContext           = glXDestroyContext;
 644   qglXMakeCurrent              = glXMakeCurrent;
 645   //qglXCopyContext              = glXCopyContext;
 646   qglXSwapBuffers              = glXSwapBuffers;
 647   qglXCreateGLXPixmap          = glXCreateGLXPixmap;
 648   qglXDestroyGLXPixmap         = glXDestroyGLXPixmap;
 649   qglXQueryExtension           = glXQueryExtension;
 650   qglXQueryVersion             = glXQueryVersion;
 651   qglXIsDirect                 = glXIsDirect;
 652   qglXGetConfig                = glXGetConfig;
 653   qglXGetCurrentContext        = glXGetCurrentContext;
 654   qglXGetCurrentDrawable       = glXGetCurrentDrawable;
 655   qglXWaitGL                   = glXWaitGL;
 656   qglXWaitX                    = glXWaitX;
 657   qglXUseXFont                 = glXUseXFont;
 658 //  qglXGetProcAddressARB        = glXGetProcAddressARB; // Utah-GLX fix
 659
 660   qglXGetProcAddressARB = (glXGetProcAddressARBProc)dlsym(RTLD_DEFAULT, "glXGetProcAddressARB");
 661   if ((qglXQueryExtension == 0) || (qglXQueryExtension(GDK_DISPLAY(),0,0) != True))
 662     return 0;
 663 #else
 664 #error "unsupported platform"
 665 #endif
 666
 667   return 1;
 668 }
 669
 670 int g_qglMajorVersion = 0;
 671 int g_qglMinorVersion = 0;
 672
 673 // requires a valid gl context
 674 void QGL_InitVersion()
 675 {
 676 #if EXTENSIONS_ENABLED
 677   const std::size_t versionSize = 256;
 678   char version[versionSize];
 679   strncpy(version, reinterpret_cast<const char*>(GlobalOpenGL().m_glGetString(GL_VERSION)), versionSize - 1);
 680   version[versionSize - 1] = '\0';
 681   char* firstDot = strchr(version, '.');
 682   ASSERT_NOTNULL(firstDot);
 683   *firstDot = '\0';
 684   g_qglMajorVersion = atoi(version);
 685   char* secondDot = strchr(firstDot + 1, '.');
 686   if(secondDot != 0)
 687   {
 688     *secondDot = '\0';
 689   }
 690   g_qglMinorVersion = atoi(firstDot + 1);
 691 #else
 692   g_qglMajorVersion = 1;
 693   g_qglMinorVersion = 1;
 694 #endif
 695 }
 696
 697
 698 inline void extension_not_implemented(const char* extension)
 699 {
 700   globalErrorStream() << "WARNING: OpenGL driver reports support for " << extension << " but does not implement it\n";
 701 }
 702
 703 void QGL_sharedContextCreated(OpenGLBinding& table)
 704 {
 705   QGL_InitVersion();
 706
 707   table.major_version = g_qglMajorVersion;
 708   table.minor_version = g_qglMinorVersion;
 709
 710   table.m_glAccum                     = glAccum;
 711   table.m_glAlphaFunc                 = glAlphaFunc;
 712   table.m_glAreTexturesResident       = glAreTexturesResident;
 713   table.m_glArrayElement              = glArrayElement;
 714   table.m_glBegin                     = glBegin;
 715   table.m_glBindTexture               = glBindTexture;
 716   table.m_glBitmap                    = glBitmap;
 717   table.m_glBlendFunc                 = glBlendFunc;
 718   table.m_glCallList                  = glCallList;
 719   table.m_glCallLists                 = glCallLists;
 720   table.m_glClear                     = glClear;
 721   table.m_glClearAccum                = glClearAccum;
 722   table.m_glClearColor                = glClearColor;
 723   table.m_glClearDepth                = glClearDepth;
 724   table.m_glClearIndex                = glClearIndex;
 725   table.m_glClearStencil              = glClearStencil;
 726   table.m_glClipPlane                 = glClipPlane;
 727   table.m_glColor3b                   = glColor3b;
 728   table.m_glColor3bv                  = glColor3bv;
 729   table.m_glColor3d                   = glColor3d;
 730   table.m_glColor3dv                  = glColor3dv;
 731   table.m_glColor3f                   = glColor3f;
 732   table.m_glColor3fv                  = glColor3fv;
 733   table.m_glColor3i                   = glColor3i;
 734   table.m_glColor3iv                  = glColor3iv;
 735   table.m_glColor3s                   = glColor3s;
 736   table.m_glColor3sv                  = glColor3sv;
 737   table.m_glColor3ub                  = glColor3ub;
 738   table.m_glColor3ubv                 = glColor3ubv;
 739   table.m_glColor3ui                  = glColor3ui;
 740   table.m_glColor3uiv                 = glColor3uiv;
 741   table.m_glColor3us                  = glColor3us;
 742   table.m_glColor3usv                 = glColor3usv;
 743   table.m_glColor4b                   = glColor4b;
 744   table.m_glColor4bv                  = glColor4bv;
 745   table.m_glColor4d                   = glColor4d;
 746   table.m_glColor4dv                  = glColor4dv;
 747   table.m_glColor4f                   = glColor4f;
 748   table.m_glColor4fv                  = glColor4fv;
 749   table.m_glColor4i                   = glColor4i;
 750   table.m_glColor4iv                  = glColor4iv;
 751   table.m_glColor4s                   = glColor4s;
 752   table.m_glColor4sv                  = glColor4sv;
 753   table.m_glColor4ub                  = glColor4ub;
 754   table.m_glColor4ubv                 = glColor4ubv;
 755   table.m_glColor4ui                  = glColor4ui;
 756   table.m_glColor4uiv                 = glColor4uiv;
 757   table.m_glColor4us                  = glColor4us;
 758   table.m_glColor4usv                 = glColor4usv;
 759   table.m_glColorMask                 = glColorMask;
 760   table.m_glColorMaterial             = glColorMaterial;
 761   table.m_glColorPointer              = glColorPointer;
 762   table.m_glCopyPixels                = glCopyPixels;
 763   table.m_glCopyTexImage1D            = glCopyTexImage1D;
 764   table.m_glCopyTexImage2D            = glCopyTexImage2D;
 765   table.m_glCopyTexSubImage1D         = glCopyTexSubImage1D;
 766   table.m_glCopyTexSubImage2D         = glCopyTexSubImage2D;
 767   table.m_glCullFace                  = glCullFace;
 768   table.m_glDeleteLists               = glDeleteLists;
 769   table.m_glDeleteTextures            = glDeleteTextures;
 770   table.m_glDepthFunc                 = glDepthFunc;
 771   table.m_glDepthMask                 = glDepthMask;
 772   table.m_glDepthRange                = glDepthRange;
 773   table.m_glDisable                   = glDisable;
 774   table.m_glDisableClientState        = glDisableClientState;
 775   table.m_glDrawArrays                = glDrawArrays;
 776   table.m_glDrawBuffer                = glDrawBuffer;
 777   table.m_glDrawElements              = glDrawElements;
 778   table.m_glDrawPixels                = glDrawPixels;
 779   table.m_glEdgeFlag                  = glEdgeFlag;
 780   table.m_glEdgeFlagPointer           = glEdgeFlagPointer;
 781   table.m_glEdgeFlagv                 = glEdgeFlagv;
 782   table.m_glEnable                    = glEnable;
 783   table.m_glEnableClientState         = glEnableClientState;
 784   table.m_glEnd                       = glEnd;
 785   table.m_glEndList                   = glEndList;
 786   table.m_glEvalCoord1d               = glEvalCoord1d;
 787   table.m_glEvalCoord1dv              = glEvalCoord1dv;
 788   table.m_glEvalCoord1f               = glEvalCoord1f;
 789   table.m_glEvalCoord1fv              = glEvalCoord1fv;
 790   table.m_glEvalCoord2d               = glEvalCoord2d;
 791   table.m_glEvalCoord2dv              = glEvalCoord2dv;
 792   table.m_glEvalCoord2f               = glEvalCoord2f;
 793   table.m_glEvalCoord2fv              = glEvalCoord2fv;
 794   table.m_glEvalMesh1                 = glEvalMesh1;
 795   table.m_glEvalMesh2                 = glEvalMesh2;
 796   table.m_glEvalPoint1                = glEvalPoint1;
 797   table.m_glEvalPoint2                = glEvalPoint2;
 798   table.m_glFeedbackBuffer            = glFeedbackBuffer;
 799   table.m_glFinish                    = glFinish;
 800   table.m_glFlush                     = glFlush;
 801   table.m_glFogf                      = glFogf;
 802   table.m_glFogfv                     = glFogfv;
 803   table.m_glFogi                      = glFogi;
 804   table.m_glFogiv                     = glFogiv;
 805   table.m_glFrontFace                 = glFrontFace;
 806   table.m_glFrustum                   = glFrustum;
 807   table.m_glGenLists                  = glGenLists;
 808   table.m_glGenTextures               = glGenTextures;
 809   table.m_glGetBooleanv               = glGetBooleanv;
 810   table.m_glGetClipPlane              = glGetClipPlane;
 811   table.m_glGetDoublev                = glGetDoublev;
 812   table.m_glGetError                  = glGetError;
 813   table.m_glGetFloatv                 = glGetFloatv;
 814   table.m_glGetIntegerv               = glGetIntegerv;
 815   table.m_glGetLightfv                = glGetLightfv;
 816   table.m_glGetLightiv                = glGetLightiv;
 817   table.m_glGetMapdv                  = glGetMapdv;
 818   table.m_glGetMapfv                  = glGetMapfv;
 819   table.m_glGetMapiv                  = glGetMapiv;
 820   table.m_glGetMaterialfv             = glGetMaterialfv;
 821   table.m_glGetMaterialiv             = glGetMaterialiv;
 822   table.m_glGetPixelMapfv             = glGetPixelMapfv;
 823   table.m_glGetPixelMapuiv            = glGetPixelMapuiv;
 824   table.m_glGetPixelMapusv            = glGetPixelMapusv;
 825   table.m_glGetPointerv               = glGetPointerv;
 826   table.m_glGetPolygonStipple         = glGetPolygonStipple;
 827   table.m_glGetString                 = glGetString;
 828   table.m_glGetTexEnvfv               = glGetTexEnvfv;
 829   table.m_glGetTexEnviv               = glGetTexEnviv;
 830   table.m_glGetTexGendv               = glGetTexGendv;
 831   table.m_glGetTexGenfv               = glGetTexGenfv;
 832   table.m_glGetTexGeniv               = glGetTexGeniv;
 833   table.m_glGetTexImage               = glGetTexImage;
 834   table.m_glGetTexLevelParameterfv    = glGetTexLevelParameterfv;
 835   table.m_glGetTexLevelParameteriv    = glGetTexLevelParameteriv;
 836   table.m_glGetTexParameterfv         = glGetTexParameterfv;
 837   table.m_glGetTexParameteriv         = glGetTexParameteriv;
 838   table.m_glHint                      = glHint;
 839   table.m_glIndexMask                 = glIndexMask;
 840   table.m_glIndexPointer              = glIndexPointer;
 841   table.m_glIndexd                    = glIndexd;
 842   table.m_glIndexdv                   = glIndexdv;
 843   table.m_glIndexf                    = glIndexf;
 844   table.m_glIndexfv                   = glIndexfv;
 845   table.m_glIndexi                    = glIndexi;
 846   table.m_glIndexiv                   = glIndexiv;
 847   table.m_glIndexs                    = glIndexs;
 848   table.m_glIndexsv                   = glIndexsv;
 849   table.m_glIndexub                   = glIndexub;
 850   table.m_glIndexubv                  = glIndexubv;
 851   table.m_glInitNames                 = glInitNames;
 852   table.m_glInterleavedArrays         = glInterleavedArrays;
 853   table.m_glIsEnabled                 = glIsEnabled;
 854   table.m_glIsList                    = glIsList;
 855   table.m_glIsTexture                 = glIsTexture;
 856   table.m_glLightModelf               = glLightModelf;
 857   table.m_glLightModelfv              = glLightModelfv;
 858   table.m_glLightModeli               = glLightModeli;
 859   table.m_glLightModeliv              = glLightModeliv;
 860   table.m_glLightf                    = glLightf;
 861   table.m_glLightfv                   = glLightfv;
 862   table.m_glLighti                    = glLighti;
 863   table.m_glLightiv                   = glLightiv;
 864   table.m_glLineStipple               = glLineStipple;
 865   table.m_glLineWidth                 = glLineWidth;
 866   table.m_glListBase                  = glListBase;
 867   table.m_glLoadIdentity              = glLoadIdentity;
 868   table.m_glLoadMatrixd               = glLoadMatrixd;
 869   table.m_glLoadMatrixf               = glLoadMatrixf;
 870   table.m_glLoadName                  = glLoadName;
 871   table.m_glLogicOp                   = glLogicOp;
 872   table.m_glMap1d                     = glMap1d;
 873   table.m_glMap1f                     = glMap1f;
 874   table.m_glMap2d                     = glMap2d;
 875   table.m_glMap2f                     = glMap2f;
 876   table.m_glMapGrid1d                 = glMapGrid1d;
 877   table.m_glMapGrid1f                 = glMapGrid1f;
 878   table.m_glMapGrid2d                 = glMapGrid2d;
 879   table.m_glMapGrid2f                 = glMapGrid2f;
 880   table.m_glMaterialf                 = glMaterialf;
 881   table.m_glMaterialfv                = glMaterialfv;
 882   table.m_glMateriali                 = glMateriali;
 883   table.m_glMaterialiv                = glMaterialiv;
 884   table.m_glMatrixMode                = glMatrixMode;
 885   table.m_glMultMatrixd               = glMultMatrixd;
 886   table.m_glMultMatrixf               = glMultMatrixf;
 887   table.m_glNewList                   = glNewList;
 888   table.m_glNormal3b                  = glNormal3b;
 889   table.m_glNormal3bv                 = glNormal3bv;
 890   table.m_glNormal3d                  = glNormal3d;
 891   table.m_glNormal3dv                 = glNormal3dv;
 892   table.m_glNormal3f                  = glNormal3f;
 893   table.m_glNormal3fv                 = glNormal3fv;
 894   table.m_glNormal3i                  = glNormal3i;
 895   table.m_glNormal3iv                 = glNormal3iv;
 896   table.m_glNormal3s                  = glNormal3s;
 897   table.m_glNormal3sv                 = glNormal3sv;
 898   table.m_glNormalPointer             = glNormalPointer;
 899   table.m_glOrtho                     = glOrtho;
 900   table.m_glPassThrough               = glPassThrough;
 901   table.m_glPixelMapfv                = glPixelMapfv;
 902   table.m_glPixelMapuiv               = glPixelMapuiv;
 903   table.m_glPixelMapusv               = glPixelMapusv;
 904   table.m_glPixelStoref               = glPixelStoref;
 905   table.m_glPixelStorei               = glPixelStorei;
 906   table.m_glPixelTransferf            = glPixelTransferf;
 907   table.m_glPixelTransferi            = glPixelTransferi;
 908   table.m_glPixelZoom                 = glPixelZoom;
 909   table.m_glPointSize                 = glPointSize;
 910   table.m_glPolygonMode               = glPolygonMode;
 911   table.m_glPolygonOffset             = glPolygonOffset;
 912   table.m_glPolygonStipple            = glPolygonStipple;
 913   table.m_glPopAttrib                 = glPopAttrib;
 914   table.m_glPopClientAttrib           = glPopClientAttrib;
 915   table.m_glPopMatrix                 = glPopMatrix;
 916   table.m_glPopName                   = glPopName;
 917   table.m_glPrioritizeTextures        = glPrioritizeTextures;
 918   table.m_glPushAttrib                = glPushAttrib;
 919   table.m_glPushClientAttrib          = glPushClientAttrib;
 920   table.m_glPushMatrix                = glPushMatrix;
 921   table.m_glPushName                  = glPushName;
 922   table.m_glRasterPos2d               = glRasterPos2d;
 923   table.m_glRasterPos2dv              = glRasterPos2dv;
 924   table.m_glRasterPos2f               = glRasterPos2f;
 925   table.m_glRasterPos2fv              = glRasterPos2fv;
 926   table.m_glRasterPos2i               = glRasterPos2i;
 927   table.m_glRasterPos2iv              = glRasterPos2iv;
 928   table.m_glRasterPos2s               = glRasterPos2s;
 929   table.m_glRasterPos2sv              = glRasterPos2sv;
 930   table.m_glRasterPos3d               = glRasterPos3d;
 931   table.m_glRasterPos3dv              = glRasterPos3dv;
 932   table.m_glRasterPos3f               = glRasterPos3f;
 933   table.m_glRasterPos3fv              = glRasterPos3fv;
 934   table.m_glRasterPos3i               = glRasterPos3i;
 935   table.m_glRasterPos3iv              = glRasterPos3iv;
 936   table.m_glRasterPos3s               = glRasterPos3s;
 937   table.m_glRasterPos3sv              = glRasterPos3sv;
 938   table.m_glRasterPos4d               = glRasterPos4d;
 939   table.m_glRasterPos4dv              = glRasterPos4dv;
 940   table.m_glRasterPos4f               = glRasterPos4f;
 941   table.m_glRasterPos4fv              = glRasterPos4fv;
 942   table.m_glRasterPos4i               = glRasterPos4i;
 943   table.m_glRasterPos4iv              = glRasterPos4iv;
 944   table.m_glRasterPos4s               = glRasterPos4s;
 945   table.m_glRasterPos4sv              = glRasterPos4sv;
 946   table.m_glReadBuffer                = glReadBuffer;
 947   table.m_glReadPixels                = glReadPixels;
 948   table.m_glRectd                     = glRectd;
 949   table.m_glRectdv                    = glRectdv;
 950   table.m_glRectf                     = glRectf;
 951   table.m_glRectfv                    = glRectfv;
 952   table.m_glRecti                     = glRecti;
 953   table.m_glRectiv                    = glRectiv;
 954   table.m_glRects                     = glRects;
 955   table.m_glRectsv                    = glRectsv;
 956   table.m_glRenderMode                = glRenderMode;
 957   table.m_glRotated                   = glRotated;
 958   table.m_glRotatef                   = glRotatef;
 959   table.m_glScaled                    = glScaled;
 960   table.m_glScalef                    = glScalef;
 961   table.m_glScissor                   = glScissor;
 962   table.m_glSelectBuffer              = glSelectBuffer;
 963   table.m_glShadeModel                = glShadeModel;
 964   table.m_glStencilFunc               = glStencilFunc;
 965   table.m_glStencilMask               = glStencilMask;
 966   table.m_glStencilOp                 = glStencilOp;
 967   table.m_glTexCoord1d                = glTexCoord1d;
 968   table.m_glTexCoord1dv               = glTexCoord1dv;
 969   table.m_glTexCoord1f                = glTexCoord1f;
 970   table.m_glTexCoord1fv               = glTexCoord1fv;
 971   table.m_glTexCoord1i                = glTexCoord1i;
 972   table.m_glTexCoord1iv               = glTexCoord1iv;
 973   table.m_glTexCoord1s                = glTexCoord1s;
 974   table.m_glTexCoord1sv               = glTexCoord1sv;
 975   table.m_glTexCoord2d                = glTexCoord2d;
 976   table.m_glTexCoord2dv               = glTexCoord2dv;
 977   table.m_glTexCoord2f                = glTexCoord2f;
 978   table.m_glTexCoord2fv               = glTexCoord2fv;
 979   table.m_glTexCoord2i                = glTexCoord2i;
 980   table.m_glTexCoord2iv               = glTexCoord2iv;
 981   table.m_glTexCoord2s                = glTexCoord2s;
 982   table.m_glTexCoord2sv               = glTexCoord2sv;
 983   table.m_glTexCoord3d                = glTexCoord3d;
 984   table.m_glTexCoord3dv               = glTexCoord3dv;
 985   table.m_glTexCoord3f                = glTexCoord3f;
 986   table.m_glTexCoord3fv               = glTexCoord3fv;
 987   table.m_glTexCoord3i                = glTexCoord3i;
 988   table.m_glTexCoord3iv               = glTexCoord3iv;
 989   table.m_glTexCoord3s                = glTexCoord3s;
 990   table.m_glTexCoord3sv               = glTexCoord3sv;
 991   table.m_glTexCoord4d                = glTexCoord4d;
 992   table.m_glTexCoord4dv               = glTexCoord4dv;
 993   table.m_glTexCoord4f                = glTexCoord4f;
 994   table.m_glTexCoord4fv               = glTexCoord4fv;
 995   table.m_glTexCoord4i                = glTexCoord4i;
 996   table.m_glTexCoord4iv               = glTexCoord4iv;
 997   table.m_glTexCoord4s                = glTexCoord4s;
 998   table.m_glTexCoord4sv               = glTexCoord4sv;
 999   table.m_glTexCoordPointer           = glTexCoordPointer;
1000   table.m_glTexEnvf                   = glTexEnvf;
1001   table.m_glTexEnvfv                  = glTexEnvfv;
1002   table.m_glTexEnvi                   = glTexEnvi;
1003   table.m_glTexEnviv                  = glTexEnviv;
1004   table.m_glTexGend                   = glTexGend;
1005   table.m_glTexGendv                  = glTexGendv;
1006   table.m_glTexGenf                   = glTexGenf;
1007   table.m_glTexGenfv                  = glTexGenfv;
1008   table.m_glTexGeni                   = glTexGeni;
1009   table.m_glTexGeniv                  = glTexGeniv;
1010   table.m_glTexImage1D                = glTexImage1D;
1011   table.m_glTexImage2D                = glTexImage2D;
1012   table.m_glTexParameterf             = glTexParameterf;
1013   table.m_glTexParameterfv            = glTexParameterfv;
1014   table.m_glTexParameteri             = glTexParameteri;
1015   table.m_glTexParameteriv            = glTexParameteriv;
1016   table.m_glTexSubImage1D             = glTexSubImage1D;
1017   table.m_glTexSubImage2D             = glTexSubImage2D;
1018   table.m_glTranslated                = glTranslated;
1019   table.m_glTranslatef                = glTranslatef;
1020   table.m_glVertex2d                  = glVertex2d;
1021   table.m_glVertex2dv                 = glVertex2dv;
1022   table.m_glVertex2f                  = glVertex2f;
1023   table.m_glVertex2fv                 = glVertex2fv;
1024   table.m_glVertex2i                  = glVertex2i;
1025   table.m_glVertex2iv                 = glVertex2iv;
1026   table.m_glVertex2s                  = glVertex2s;
1027   table.m_glVertex2sv                 = glVertex2sv;
1028   table.m_glVertex3d                  = glVertex3d;
1029   table.m_glVertex3dv                 = glVertex3dv;
1030   table.m_glVertex3f                  = glVertex3f;
1031   table.m_glVertex3fv                 = glVertex3fv;
1032   table.m_glVertex3i                  = glVertex3i;
1033   table.m_glVertex3iv                 = glVertex3iv;
1034   table.m_glVertex3s                  = glVertex3s;
1035   table.m_glVertex3sv                 = glVertex3sv;
1036   table.m_glVertex4d                  = glVertex4d;
1037   table.m_glVertex4dv                 = glVertex4dv;
1038   table.m_glVertex4f                  = glVertex4f;
1039   table.m_glVertex4fv                 = glVertex4fv;
1040   table.m_glVertex4i                  = glVertex4i;
1041   table.m_glVertex4iv                 = glVertex4iv;
1042   table.m_glVertex4s                  = glVertex4s;
1043   table.m_glVertex4sv                 = glVertex4sv;
1044   table.m_glVertexPointer             = glVertexPointer;
1045   table.m_glViewport                  = glViewport;
1046
1047   if(QGL_ExtensionSupported("GL_ARB_multitexture"))
1048   {
1049     table.support_ARB_multitexture =
1050     QGL_constructExtensionFunc(table.m_glActiveTextureARB, "glActiveTextureARB")
1051     && QGL_constructExtensionFunc(table.m_glClientActiveTextureARB, "glClientActiveTextureARB")
1052     && QGL_constructExtensionFunc(table.m_glMultiTexCoord1dARB, "glMultiTexCoord1dARB")
1053     && QGL_constructExtensionFunc(table.m_glMultiTexCoord1dvARB, "glMultiTexCoord1dvARB")
1054     && QGL_constructExtensionFunc(table.m_glMultiTexCoord1fARB, "glMultiTexCoord1fARB")
1055     && QGL_constructExtensionFunc(table.m_glMultiTexCoord1fvARB, "glMultiTexCoord1fvARB")
1056     && QGL_constructExtensionFunc(table.m_glMultiTexCoord1iARB, "glMultiTexCoord1iARB")
1057     && QGL_constructExtensionFunc(table.m_glMultiTexCoord1ivARB, "glMultiTexCoord1ivARB")
1058     && QGL_constructExtensionFunc(table.m_glMultiTexCoord1sARB, "glMultiTexCoord1sARB")
1059     && QGL_constructExtensionFunc(table.m_glMultiTexCoord1svARB, "glMultiTexCoord1svARB")
1060     && QGL_constructExtensionFunc(table.m_glMultiTexCoord2dARB, "glMultiTexCoord2dARB")
1061     && QGL_constructExtensionFunc(table.m_glMultiTexCoord2dvARB, "glMultiTexCoord2dvARB")
1062     && QGL_constructExtensionFunc(table.m_glMultiTexCoord2fARB, "glMultiTexCoord2fARB")
1063     && QGL_constructExtensionFunc(table.m_glMultiTexCoord2fvARB, "glMultiTexCoord2fvARB")
1064     && QGL_constructExtensionFunc(table.m_glMultiTexCoord2iARB, "glMultiTexCoord2iARB")
1065     && QGL_constructExtensionFunc(table.m_glMultiTexCoord2ivARB, "glMultiTexCoord2ivARB")
1066     && QGL_constructExtensionFunc(table.m_glMultiTexCoord2sARB, "glMultiTexCoord2sARB")
1067     && QGL_constructExtensionFunc(table.m_glMultiTexCoord2svARB, "glMultiTexCoord2svARB")
1068     && QGL_constructExtensionFunc(table.m_glMultiTexCoord3dARB, "glMultiTexCoord3dARB")
1069     && QGL_constructExtensionFunc(table.m_glMultiTexCoord3dvARB, "glMultiTexCoord3dvARB")
1070     && QGL_constructExtensionFunc(table.m_glMultiTexCoord3fARB, "glMultiTexCoord3fARB")
1071     && QGL_constructExtensionFunc(table.m_glMultiTexCoord3fvARB, "glMultiTexCoord3fvARB")
1072     && QGL_constructExtensionFunc(table.m_glMultiTexCoord3iARB, "glMultiTexCoord3iARB")
1073     && QGL_constructExtensionFunc(table.m_glMultiTexCoord3ivARB, "glMultiTexCoord3ivARB")
1074     && QGL_constructExtensionFunc(table.m_glMultiTexCoord3sARB, "glMultiTexCoord3sARB")
1075     && QGL_constructExtensionFunc(table.m_glMultiTexCoord3svARB, "glMultiTexCoord3svARB")
1076     && QGL_constructExtensionFunc(table.m_glMultiTexCoord4dARB, "glMultiTexCoord4dARB")
1077     && QGL_constructExtensionFunc(table.m_glMultiTexCoord4dvARB, "glMultiTexCoord4dvARB")
1078     && QGL_constructExtensionFunc(table.m_glMultiTexCoord4fARB, "glMultiTexCoord4fARB")
1079     && QGL_constructExtensionFunc(table.m_glMultiTexCoord4fvARB, "glMultiTexCoord4fvARB")
1080     && QGL_constructExtensionFunc(table.m_glMultiTexCoord4iARB, "glMultiTexCoord4iARB")
1081     && QGL_constructExtensionFunc(table.m_glMultiTexCoord4ivARB, "glMultiTexCoord4ivARB")
1082     && QGL_constructExtensionFunc(table.m_glMultiTexCoord4sARB, "glMultiTexCoord4sARB")
1083     && QGL_constructExtensionFunc(table.m_glMultiTexCoord4svARB, "glMultiTexCoord4svARB");
1084
1085     if(!table.support_ARB_multitexture)
1086     {
1087       extension_not_implemented("GL_ARB_multitexture");
1088     }
1089   }
1090   else
1091   {
1092     table.support_ARB_multitexture = false;
1093   }
1094
1095   if(QGL_ExtensionSupported("GL_ARB_texture_compression"))
1096   {
1097     table.support_ARB_texture_compression =
1098     QGL_constructExtensionFunc(table.m_glCompressedTexImage3DARB, "glCompressedTexImage3DARB")
1099     && QGL_constructExtensionFunc(table.m_glCompressedTexImage2DARB, "glCompressedTexImage2DARB")
1100     && QGL_constructExtensionFunc(table.m_glCompressedTexImage1DARB, "glCompressedTexImage1DARB")
1101     && QGL_constructExtensionFunc(table.m_glCompressedTexSubImage3DARB, "glCompressedTexSubImage3DARB")
1102     && QGL_constructExtensionFunc(table.m_glCompressedTexSubImage2DARB, "glCompressedTexSubImage2DARB")
1103     && QGL_constructExtensionFunc(table.m_glCompressedTexSubImage1DARB, "glCompressedTexSubImage1DARB")
1104     && QGL_constructExtensionFunc(table.m_glGetCompressedTexImageARB, "glGetCompressedTexImageARB");
1105
1106     if(!table.support_ARB_texture_compression)
1107     {
1108       extension_not_implemented("GL_ARB_texture_compression");
1109     }
1110   }
1111   else
1112   {
1113     table.support_ARB_texture_compression = false;
1114   }
1115
1116   table.support_EXT_texture_compression_s3tc = QGL_ExtensionSupported("GL_EXT_texture_compression_s3tc");
1117
1118   // GL 1.2
1119   if(table.major_version > 1 || table.minor_version >= 2)
1120   {
1121     table.support_GL_1_2 =
1122     QGL_constructExtensionFunc(table.m_glCopyTexSubImage3D, "glCopyTexSubImage3D")
1123     && QGL_constructExtensionFunc(table.m_glDrawRangeElements, "glDrawRangeElements")
1124     && QGL_constructExtensionFunc(table.m_glTexImage3D, "glTexImage3D")
1125     && QGL_constructExtensionFunc(table.m_glTexSubImage3D, "glTexSubImage3D");
1126
1127     if(!table.support_GL_1_2)
1128     {
1129       extension_not_implemented("GL_VERSION_1_2");
1130     }
1131   }
1132   else
1133   {
1134     table.support_GL_1_2 = false;
1135   }
1136
1137   // GL 1.3
1138   if(table.major_version > 1 || table.minor_version >= 3)
1139   {
1140     table.support_GL_1_3 =
1141     QGL_constructExtensionFunc(table.m_glActiveTexture, "glActiveTexture")
1142     && QGL_constructExtensionFunc(table.m_glClientActiveTexture, "glClientActiveTexture")
1143     && QGL_constructExtensionFunc(table.m_glCompressedTexImage1D, "glCompressedTexImage1D")
1144     && QGL_constructExtensionFunc(table.m_glCompressedTexImage2D, "glCompressedTexImage2D")
1145     && QGL_constructExtensionFunc(table.m_glCompressedTexImage3D, "glCompressedTexImage3D")
1146     && QGL_constructExtensionFunc(table.m_glCompressedTexSubImage1D, "glCompressedTexSubImage1D")
1147     && QGL_constructExtensionFunc(table.m_glCompressedTexSubImage2D, "glCompressedTexSubImage2D")
1148     && QGL_constructExtensionFunc(table.m_glCompressedTexSubImage3D, "glCompressedTexSubImage3D")
1149     && QGL_constructExtensionFunc(table.m_glGetCompressedTexImage, "glGetCompressedTexImage")
1150     && QGL_constructExtensionFunc(table.m_glLoadTransposeMatrixd, "glLoadTransposeMatrixd")
1151     && QGL_constructExtensionFunc(table.m_glLoadTransposeMatrixf, "glLoadTransposeMatrixf")
1152     && QGL_constructExtensionFunc(table.m_glMultTransposeMatrixd, "glMultTransposeMatrixd")
1153     && QGL_constructExtensionFunc(table.m_glMultTransposeMatrixf, "glMultTransposeMatrixf")
1154     && QGL_constructExtensionFunc(table.m_glMultiTexCoord1d, "glMultiTexCoord1d")
1155     && QGL_constructExtensionFunc(table.m_glMultiTexCoord1dv, "glMultiTexCoord1dv")
1156     && QGL_constructExtensionFunc(table.m_glMultiTexCoord1f, "glMultiTexCoord1f")
1157     && QGL_constructExtensionFunc(table.m_glMultiTexCoord1fv, "glMultiTexCoord1fv")
1158     && QGL_constructExtensionFunc(table.m_glMultiTexCoord1i, "glMultiTexCoord1i")
1159     && QGL_constructExtensionFunc(table.m_glMultiTexCoord1iv, "glMultiTexCoord1iv")
1160     && QGL_constructExtensionFunc(table.m_glMultiTexCoord1s, "glMultiTexCoord1s")
1161     && QGL_constructExtensionFunc(table.m_glMultiTexCoord1sv, "glMultiTexCoord1sv")
1162     && QGL_constructExtensionFunc(table.m_glMultiTexCoord2d, "glMultiTexCoord2d")
1163     && QGL_constructExtensionFunc(table.m_glMultiTexCoord2dv, "glMultiTexCoord2dv")
1164     && QGL_constructExtensionFunc(table.m_glMultiTexCoord2f, "glMultiTexCoord2f")
1165     && QGL_constructExtensionFunc(table.m_glMultiTexCoord2fv, "glMultiTexCoord2fv")
1166     && QGL_constructExtensionFunc(table.m_glMultiTexCoord2i, "glMultiTexCoord2i")
1167     && QGL_constructExtensionFunc(table.m_glMultiTexCoord2iv, "glMultiTexCoord2iv")
1168     && QGL_constructExtensionFunc(table.m_glMultiTexCoord2s, "glMultiTexCoord2s")
1169     && QGL_constructExtensionFunc(table.m_glMultiTexCoord2sv, "glMultiTexCoord2sv")
1170     && QGL_constructExtensionFunc(table.m_glMultiTexCoord3d, "glMultiTexCoord3d")
1171     && QGL_constructExtensionFunc(table.m_glMultiTexCoord3dv, "glMultiTexCoord3dv")
1172     && QGL_constructExtensionFunc(table.m_glMultiTexCoord3f, "glMultiTexCoord3f")
1173     && QGL_constructExtensionFunc(table.m_glMultiTexCoord3fv, "glMultiTexCoord3fv")
1174     && QGL_constructExtensionFunc(table.m_glMultiTexCoord3i, "glMultiTexCoord3i")
1175     && QGL_constructExtensionFunc(table.m_glMultiTexCoord3iv, "glMultiTexCoord3iv")
1176     && QGL_constructExtensionFunc(table.m_glMultiTexCoord3s, "glMultiTexCoord3s")
1177     && QGL_constructExtensionFunc(table.m_glMultiTexCoord3sv, "glMultiTexCoord3sv")
1178     && QGL_constructExtensionFunc(table.m_glMultiTexCoord4d, "glMultiTexCoord4d")
1179     && QGL_constructExtensionFunc(table.m_glMultiTexCoord4dv, "glMultiTexCoord4dv")
1180     && QGL_constructExtensionFunc(table.m_glMultiTexCoord4f, "glMultiTexCoord4f")
1181     && QGL_constructExtensionFunc(table.m_glMultiTexCoord4fv, "glMultiTexCoord4fv")
1182     && QGL_constructExtensionFunc(table.m_glMultiTexCoord4i, "glMultiTexCoord4i")
1183     && QGL_constructExtensionFunc(table.m_glMultiTexCoord4iv, "glMultiTexCoord4iv")
1184     && QGL_constructExtensionFunc(table.m_glMultiTexCoord4s, "glMultiTexCoord4s")
1185     && QGL_constructExtensionFunc(table.m_glMultiTexCoord4sv, "glMultiTexCoord4sv")
1186     && QGL_constructExtensionFunc(table.m_glSampleCoverage, "glSampleCoverage");
1187
1188     if(!table.support_GL_1_3)
1189     {
1190       extension_not_implemented("GL_VERSION_1_3");
1191     }
1192   }
1193   else
1194   {
1195     table.support_GL_1_3 = false;
1196   }
1197
1198   // GL 1.4
1199   if(table.major_version > 1 || table.minor_version >= 4)
1200   {
1201     table.support_GL_1_4 =
1202     QGL_constructExtensionFunc(table.m_glBlendColor, "glBlendColor")
1203     && QGL_constructExtensionFunc(table.m_glBlendEquation, "glBlendEquation")
1204     && QGL_constructExtensionFunc(table.m_glBlendFuncSeparate, "glBlendFuncSeparate")
1205     && QGL_constructExtensionFunc(table.m_glFogCoordPointer, "glFogCoordPointer")
1206     && QGL_constructExtensionFunc(table.m_glFogCoordd, "glFogCoordd")
1207     && QGL_constructExtensionFunc(table.m_glFogCoorddv, "glFogCoorddv")
1208     && QGL_constructExtensionFunc(table.m_glFogCoordf, "glFogCoordf")
1209     && QGL_constructExtensionFunc(table.m_glFogCoordfv, "glFogCoordfv")
1210     && QGL_constructExtensionFunc(table.m_glMultiDrawArrays, "glMultiDrawArrays")
1211     && QGL_constructExtensionFunc(table.m_glMultiDrawElements, "glMultiDrawElements")
1212     && QGL_constructExtensionFunc(table.m_glPointParameterf, "glPointParameterf")
1213     && QGL_constructExtensionFunc(table.m_glPointParameterfv, "glPointParameterfv")
1214     && QGL_constructExtensionFunc(table.m_glSecondaryColor3b, "glSecondaryColor3b")
1215     && QGL_constructExtensionFunc(table.m_glSecondaryColor3bv, "glSecondaryColor3bv")
1216     && QGL_constructExtensionFunc(table.m_glSecondaryColor3d, "glSecondaryColor3d")
1217     && QGL_constructExtensionFunc(table.m_glSecondaryColor3dv, "glSecondaryColor3dv")
1218     && QGL_constructExtensionFunc(table.m_glSecondaryColor3f, "glSecondaryColor3f")
1219     && QGL_constructExtensionFunc(table.m_glSecondaryColor3fv, "glSecondaryColor3fv")
1220     && QGL_constructExtensionFunc(table.m_glSecondaryColor3i, "glSecondaryColor3i")
1221     && QGL_constructExtensionFunc(table.m_glSecondaryColor3iv, "glSecondaryColor3iv")
1222     && QGL_constructExtensionFunc(table.m_glSecondaryColor3s, "glSecondaryColor3s")
1223     && QGL_constructExtensionFunc(table.m_glSecondaryColor3sv, "glSecondaryColor3sv")
1224     && QGL_constructExtensionFunc(table.m_glSecondaryColor3ub, "glSecondaryColor3ub")
1225     && QGL_constructExtensionFunc(table.m_glSecondaryColor3ubv, "glSecondaryColor3ubv")
1226     && QGL_constructExtensionFunc(table.m_glSecondaryColor3ui, "glSecondaryColor3ui")
1227     && QGL_constructExtensionFunc(table.m_glSecondaryColor3uiv, "glSecondaryColor3uiv")
1228     && QGL_constructExtensionFunc(table.m_glSecondaryColor3us, "glSecondaryColor3us")
1229     && QGL_constructExtensionFunc(table.m_glSecondaryColor3usv, "glSecondaryColor3usv")
1230     && QGL_constructExtensionFunc(table.m_glSecondaryColorPointer, "glSecondaryColorPointer")
1231     && QGL_constructExtensionFunc(table.m_glWindowPos2d, "glWindowPos2d")
1232     && QGL_constructExtensionFunc(table.m_glWindowPos2dv, "glWindowPos2dv")
1233     && QGL_constructExtensionFunc(table.m_glWindowPos2f, "glWindowPos2f")
1234     && QGL_constructExtensionFunc(table.m_glWindowPos2fv, "glWindowPos2fv")
1235     && QGL_constructExtensionFunc(table.m_glWindowPos2i, "glWindowPos2i")
1236     && QGL_constructExtensionFunc(table.m_glWindowPos2iv, "glWindowPos2iv")
1237     && QGL_constructExtensionFunc(table.m_glWindowPos2s, "glWindowPos2s")
1238     && QGL_constructExtensionFunc(table.m_glWindowPos2sv, "glWindowPos2sv")
1239     && QGL_constructExtensionFunc(table.m_glWindowPos3d, "glWindowPos3d")
1240     && QGL_constructExtensionFunc(table.m_glWindowPos3dv, "glWindowPos3dv")
1241     && QGL_constructExtensionFunc(table.m_glWindowPos3f, "glWindowPos3f")
1242     && QGL_constructExtensionFunc(table.m_glWindowPos3fv, "glWindowPos3fv")
1243     && QGL_constructExtensionFunc(table.m_glWindowPos3i, "glWindowPos3i")
1244     && QGL_constructExtensionFunc(table.m_glWindowPos3iv, "glWindowPos3iv")
1245     && QGL_constructExtensionFunc(table.m_glWindowPos3s, "glWindowPos3s")
1246     && QGL_constructExtensionFunc(table.m_glWindowPos3sv, "glWindowPos3sv");
1247
1248     if(!table.support_GL_1_4)
1249     {
1250       extension_not_implemented("GL_VERSION_1_4");
1251     }
1252   }
1253   else
1254   {
1255     table.support_GL_1_4 = false;
1256   }
1257
1258   // GL 1.5
1259   if(table.major_version > 1 || table.minor_version >= 5)
1260   {
1261     table.support_GL_1_5 =
1262     QGL_constructExtensionFunc(table.m_glBeginQuery, "glBeginQuery")
1263     && QGL_constructExtensionFunc(table.m_glBindBuffer, "glBindBuffer")
1264     && QGL_constructExtensionFunc(table.m_glBufferData, "glBufferData")
1265     && QGL_constructExtensionFunc(table.m_glBufferSubData, "glBufferSubData")
1266     && QGL_constructExtensionFunc(table.m_glDeleteBuffers, "glDeleteBuffers")
1267     && QGL_constructExtensionFunc(table.m_glDeleteQueries, "glDeleteQueries")
1268     && QGL_constructExtensionFunc(table.m_glEndQuery, "glEndQuery")
1269     && QGL_constructExtensionFunc(table.m_glGenBuffers, "glGenBuffers")
1270     && QGL_constructExtensionFunc(table.m_glGenQueries, "glGenQueries")
1271     && QGL_constructExtensionFunc(table.m_glGetBufferParameteriv, "glGetBufferParameteriv")
1272     && QGL_constructExtensionFunc(table.m_glGetBufferPointerv, "glGetBufferPointerv")
1273     && QGL_constructExtensionFunc(table.m_glGetBufferSubData, "glGetBufferSubData")
1274     && QGL_constructExtensionFunc(table.m_glGetQueryObjectiv, "glGetQueryObjectiv")
1275     && QGL_constructExtensionFunc(table.m_glGetQueryObjectuiv, "glGetQueryObjectuiv")
1276     && QGL_constructExtensionFunc(table.m_glGetQueryiv, "glGetQueryiv")
1277     && QGL_constructExtensionFunc(table.m_glIsBuffer, "glIsBuffer")
1278     && QGL_constructExtensionFunc(table.m_glIsQuery, "glIsQuery")
1279     && QGL_constructExtensionFunc(table.m_glMapBuffer, "glMapBuffer")
1280     && QGL_constructExtensionFunc(table.m_glUnmapBuffer, "glUnmapBuffer");
1281
1282     if(!table.support_GL_1_5)
1283     {
1284       extension_not_implemented("GL_VERSION_1_5");
1285     }
1286   }
1287   else
1288   {
1289     table.support_GL_1_5 = false;
1290   }
1291
1292
1293   if(QGL_ExtensionSupported("GL_ARB_vertex_program"))
1294   {
1295     table.support_ARB_vertex_program =
1296     QGL_constructExtensionFunc(table.m_glVertexAttrib1sARB, "glVertexAttrib1sARB")
1297     && QGL_constructExtensionFunc(table.m_glVertexAttrib1fARB, "glVertexAttrib1fARB")
1298     && QGL_constructExtensionFunc(table.m_glVertexAttrib1dARB, "glVertexAttrib1dARB")
1299     && QGL_constructExtensionFunc(table.m_glVertexAttrib2sARB, "glVertexAttrib2sARB")
1300     && QGL_constructExtensionFunc(table.m_glVertexAttrib2fARB, "glVertexAttrib2fARB")
1301     && QGL_constructExtensionFunc(table.m_glVertexAttrib2dARB, "glVertexAttrib2dARB")
1302     && QGL_constructExtensionFunc(table.m_glVertexAttrib3sARB, "glVertexAttrib3sARB")
1303     && QGL_constructExtensionFunc(table.m_glVertexAttrib3fARB, "glVertexAttrib3fARB")
1304     && QGL_constructExtensionFunc(table.m_glVertexAttrib3dARB, "glVertexAttrib3dARB")
1305     && QGL_constructExtensionFunc(table.m_glVertexAttrib4sARB, "glVertexAttrib4sARB")
1306     && QGL_constructExtensionFunc(table.m_glVertexAttrib4fARB, "glVertexAttrib4fARB")
1307     && QGL_constructExtensionFunc(table.m_glVertexAttrib4dARB, "glVertexAttrib4dARB")
1308     && QGL_constructExtensionFunc(table.m_glVertexAttrib4NubARB, "glVertexAttrib4NubARB")
1309     && QGL_constructExtensionFunc(table.m_glVertexAttrib1svARB, "glVertexAttrib1svARB")
1310     && QGL_constructExtensionFunc(table.m_glVertexAttrib1fvARB, "glVertexAttrib1fvARB")
1311     && QGL_constructExtensionFunc(table.m_glVertexAttrib1dvARB, "glVertexAttrib1dvARB")
1312     && QGL_constructExtensionFunc(table.m_glVertexAttrib2svARB, "glVertexAttrib2svARB")
1313     && QGL_constructExtensionFunc(table.m_glVertexAttrib2fvARB, "glVertexAttrib2fvARB")
1314     && QGL_constructExtensionFunc(table.m_glVertexAttrib2dvARB, "glVertexAttrib2dvARB")
1315     && QGL_constructExtensionFunc(table.m_glVertexAttrib3svARB, "glVertexAttrib3svARB")
1316     && QGL_constructExtensionFunc(table.m_glVertexAttrib3fvARB, "glVertexAttrib3fvARB")
1317     && QGL_constructExtensionFunc(table.m_glVertexAttrib3dvARB, "glVertexAttrib3dvARB")
1318     && QGL_constructExtensionFunc(table.m_glVertexAttrib4bvARB, "glVertexAttrib4bvARB")
1319     && QGL_constructExtensionFunc(table.m_glVertexAttrib4svARB, "glVertexAttrib4svARB")
1320     && QGL_constructExtensionFunc(table.m_glVertexAttrib4ivARB, "glVertexAttrib4ivARB")
1321     && QGL_constructExtensionFunc(table.m_glVertexAttrib4ubvARB, "glVertexAttrib4ubvARB")
1322     && QGL_constructExtensionFunc(table.m_glVertexAttrib4usvARB, "glVertexAttrib4usvARB")
1323     && QGL_constructExtensionFunc(table.m_glVertexAttrib4uivARB, "glVertexAttrib4uivARB")
1324     && QGL_constructExtensionFunc(table.m_glVertexAttrib4fvARB, "glVertexAttrib4fvARB")
1325     && QGL_constructExtensionFunc(table.m_glVertexAttrib4dvARB, "glVertexAttrib4dvARB")
1326     && QGL_constructExtensionFunc(table.m_glVertexAttrib4NbvARB, "glVertexAttrib4NbvARB")
1327     && QGL_constructExtensionFunc(table.m_glVertexAttrib4NsvARB, "glVertexAttrib4NsvARB")
1328     && QGL_constructExtensionFunc(table.m_glVertexAttrib4NivARB, "glVertexAttrib4NivARB")
1329     && QGL_constructExtensionFunc(table.m_glVertexAttrib4NubvARB, "glVertexAttrib4NubvARB")
1330     && QGL_constructExtensionFunc(table.m_glVertexAttrib4NusvARB, "glVertexAttrib4NusvARB")
1331     && QGL_constructExtensionFunc(table.m_glVertexAttrib4NuivARB, "glVertexAttrib4NuivARB")
1332     && QGL_constructExtensionFunc(table.m_glVertexAttribPointerARB, "glVertexAttribPointerARB")
1333     && QGL_constructExtensionFunc(table.m_glEnableVertexAttribArrayARB, "glEnableVertexAttribArrayARB")
1334     && QGL_constructExtensionFunc(table.m_glDisableVertexAttribArrayARB, "glDisableVertexAttribArrayARB")
1335     && QGL_constructExtensionFunc(table.m_glProgramStringARB, "glProgramStringARB")
1336     && QGL_constructExtensionFunc(table.m_glBindProgramARB, "glBindProgramARB")
1337     && QGL_constructExtensionFunc(table.m_glDeleteProgramsARB, "glDeleteProgramsARB")
1338     && QGL_constructExtensionFunc(table.m_glGenProgramsARB, "glGenProgramsARB")
1339     && QGL_constructExtensionFunc(table.m_glProgramEnvParameter4dARB, "glProgramEnvParameter4dARB")
1340     && QGL_constructExtensionFunc(table.m_glProgramEnvParameter4dvARB, "glProgramEnvParameter4dvARB")
1341     && QGL_constructExtensionFunc(table.m_glProgramEnvParameter4fARB, "glProgramEnvParameter4fARB")
1342     && QGL_constructExtensionFunc(table.m_glProgramEnvParameter4fvARB, "glProgramEnvParameter4fvARB")
1343     && QGL_constructExtensionFunc(table.m_glProgramLocalParameter4dARB, "glProgramLocalParameter4dARB")
1344     && QGL_constructExtensionFunc(table.m_glProgramLocalParameter4dvARB, "glProgramLocalParameter4dvARB")
1345     && QGL_constructExtensionFunc(table.m_glProgramLocalParameter4fARB, "glProgramLocalParameter4fARB")
1346     && QGL_constructExtensionFunc(table.m_glProgramLocalParameter4fvARB, "glProgramLocalParameter4fvARB")
1347     && QGL_constructExtensionFunc(table.m_glGetProgramEnvParameterdvARB, "glGetProgramEnvParameterdvARB")
1348     && QGL_constructExtensionFunc(table.m_glGetProgramEnvParameterfvARB, "glGetProgramEnvParameterfvARB")
1349     && QGL_constructExtensionFunc(table.m_glGetProgramLocalParameterdvARB, "glGetProgramLocalParameterdvARB")
1350     && QGL_constructExtensionFunc(table.m_glGetProgramLocalParameterfvARB, "glGetProgramLocalParameterfvARB")
1351     && QGL_constructExtensionFunc(table.m_glGetProgramivARB, "glGetProgramivARB")
1352     && QGL_constructExtensionFunc(table.m_glGetProgramStringARB, "glGetProgramStringARB")
1353     && QGL_constructExtensionFunc(table.m_glGetVertexAttribdvARB, "glGetVertexAttribdvARB")
1354     && QGL_constructExtensionFunc(table.m_glGetVertexAttribfvARB, "glGetVertexAttribfvARB")
1355     && QGL_constructExtensionFunc(table.m_glGetVertexAttribivARB, "glGetVertexAttribivARB")
1356     && QGL_constructExtensionFunc(table.m_glGetVertexAttribPointervARB, "glGetVertexAttribPointervARB")
1357     && QGL_constructExtensionFunc(table.m_glIsProgramARB, "glIsProgramARB");
1358
1359     if(!table.support_ARB_vertex_program)
1360     {
1361       extension_not_implemented("GL_ARB_vertex_program");
1362     }
1363   }
1364   else
1365   {
1366     table.support_ARB_vertex_program = false;
1367   }
1368
1369
1370   table.support_ARB_fragment_program = QGL_ExtensionSupported("GL_ARB_fragment_program");
1371
1372   if(QGL_ExtensionSupported("GL_ARB_shader_objects"))
1373   {
1374     table.support_ARB_shader_objects =
1375     QGL_constructExtensionFunc(table.m_glDeleteObjectARB, "glDeleteObjectARB")
1376     && QGL_constructExtensionFunc(table.m_glGetHandleARB, "glGetHandleARB")
1377     && QGL_constructExtensionFunc(table.m_glDetachObjectARB, "glDetachObjectARB")
1378     && QGL_constructExtensionFunc(table.m_glCreateShaderObjectARB, "glCreateShaderObjectARB")
1379     && QGL_constructExtensionFunc(table.m_glShaderSourceARB, "glShaderSourceARB")
1380     && QGL_constructExtensionFunc(table.m_glCompileShaderARB, "glCompileShaderARB")
1381     && QGL_constructExtensionFunc(table.m_glCreateProgramObjectARB, "glCreateProgramObjectARB")
1382     && QGL_constructExtensionFunc(table.m_glAttachObjectARB, "glAttachObjectARB")
1383     && QGL_constructExtensionFunc(table.m_glLinkProgramARB, "glLinkProgramARB")
1384     && QGL_constructExtensionFunc(table.m_glUseProgramObjectARB, "glUseProgramObjectARB")
1385     && QGL_constructExtensionFunc(table.m_glValidateProgramARB, "glValidateProgramARB")
1386     && QGL_constructExtensionFunc(table.m_glUniform1fARB, "glUniform1fARB")
1387     && QGL_constructExtensionFunc(table.m_glUniform2fARB, "glUniform2fARB")
1388     && QGL_constructExtensionFunc(table.m_glUniform3fARB, "glUniform3fARB")
1389     && QGL_constructExtensionFunc(table.m_glUniform4fARB, "glUniform4fARB")
1390     && QGL_constructExtensionFunc(table.m_glUniform1iARB, "glUniform1iARB")
1391     && QGL_constructExtensionFunc(table.m_glUniform2iARB, "glUniform2iARB")
1392     && QGL_constructExtensionFunc(table.m_glUniform3iARB, "glUniform3iARB")
1393     && QGL_constructExtensionFunc(table.m_glUniform4iARB, "glUniform4iARB")
1394     && QGL_constructExtensionFunc(table.m_glUniform1fvARB, "glUniform1fvARB")
1395     && QGL_constructExtensionFunc(table.m_glUniform2fvARB, "glUniform2fvARB")
1396     && QGL_constructExtensionFunc(table.m_glUniform3fvARB, "glUniform3fvARB")
1397     && QGL_constructExtensionFunc(table.m_glUniform4fvARB, "glUniform4fvARB")
1398     && QGL_constructExtensionFunc(table.m_glUniform1ivARB, "glUniform1ivARB")
1399     && QGL_constructExtensionFunc(table.m_glUniform2ivARB, "glUniform2ivARB")
1400     && QGL_constructExtensionFunc(table.m_glUniform3ivARB, "glUniform3ivARB")
1401     && QGL_constructExtensionFunc(table.m_glUniform4ivARB, "glUniform4ivARB")
1402     && QGL_constructExtensionFunc(table.m_glUniformMatrix2fvARB, "glUniformMatrix2fvARB")
1403     && QGL_constructExtensionFunc(table.m_glUniformMatrix3fvARB, "glUniformMatrix3fvARB")
1404     && QGL_constructExtensionFunc(table.m_glUniformMatrix4fvARB, "glUniformMatrix4fvARB")
1405     && QGL_constructExtensionFunc(table.m_glGetObjectParameterfvARB, "glGetObjectParameterfvARB")
1406     && QGL_constructExtensionFunc(table.m_glGetObjectParameterivARB, "glGetObjectParameterivARB")
1407     && QGL_constructExtensionFunc(table.m_glGetInfoLogARB, "glGetInfoLogARB")
1408     && QGL_constructExtensionFunc(table.m_glGetAttachedObjectsARB, "glGetAttachedObjectsARB")
1409     && QGL_constructExtensionFunc(table.m_glGetUniformLocationARB, "glGetUniformLocationARB")
1410     && QGL_constructExtensionFunc(table.m_glGetActiveUniformARB, "glGetActiveUniformARB")
1411     && QGL_constructExtensionFunc(table.m_glGetUniformfvARB, "glGetUniformfvARB")
1412     && QGL_constructExtensionFunc(table.m_glGetUniformivARB, "glGetUniformivARB")
1413     && QGL_constructExtensionFunc(table.m_glGetShaderSourceARB, "glGetShaderSourceARB");
1414
1415     if(!table.support_ARB_shader_objects)
1416     {
1417       extension_not_implemented("GL_ARB_shader_objects");
1418     }
1419   }
1420   else
1421   {
1422     table.support_ARB_shader_objects = false;
1423   }
1424
1425   if(QGL_ExtensionSupported("GL_ARB_vertex_shader"))
1426   {
1427     table.support_ARB_vertex_shader =
1428     QGL_constructExtensionFunc(table.m_glVertexAttrib1fARB, "glVertexAttrib1fARB")
1429     && QGL_constructExtensionFunc(table.m_glVertexAttrib1sARB, "glVertexAttrib1sARB")
1430     && QGL_constructExtensionFunc(table.m_glVertexAttrib1dARB, "glVertexAttrib1dARB")
1431     && QGL_constructExtensionFunc(table.m_glVertexAttrib2fARB, "glVertexAttrib2fARB")
1432     && QGL_constructExtensionFunc(table.m_glVertexAttrib2sARB, "glVertexAttrib2sARB")
1433     && QGL_constructExtensionFunc(table.m_glVertexAttrib2dARB, "glVertexAttrib2dARB")
1434     && QGL_constructExtensionFunc(table.m_glVertexAttrib3fARB, "glVertexAttrib3fARB")
1435     && QGL_constructExtensionFunc(table.m_glVertexAttrib3sARB, "glVertexAttrib3sARB")
1436     && QGL_constructExtensionFunc(table.m_glVertexAttrib3dARB, "glVertexAttrib3dARB")
1437     && QGL_constructExtensionFunc(table.m_glVertexAttrib4fARB, "glVertexAttrib4fARB")
1438     && QGL_constructExtensionFunc(table.m_glVertexAttrib4sARB, "glVertexAttrib4sARB")
1439     && QGL_constructExtensionFunc(table.m_glVertexAttrib4dARB, "glVertexAttrib4dARB")
1440     && QGL_constructExtensionFunc(table.m_glVertexAttrib4NubARB, "glVertexAttrib4NubARB")
1441     && QGL_constructExtensionFunc(table.m_glVertexAttrib1fvARB, "glVertexAttrib1fvARB")
1442     && QGL_constructExtensionFunc(table.m_glVertexAttrib1svARB, "glVertexAttrib1svARB")
1443     && QGL_constructExtensionFunc(table.m_glVertexAttrib1dvARB, "glVertexAttrib1dvARB")
1444     && QGL_constructExtensionFunc(table.m_glVertexAttrib2fvARB, "glVertexAttrib2fvARB")
1445     && QGL_constructExtensionFunc(table.m_glVertexAttrib2svARB, "glVertexAttrib2svARB")
1446     && QGL_constructExtensionFunc(table.m_glVertexAttrib2dvARB, "glVertexAttrib2dvARB")
1447     && QGL_constructExtensionFunc(table.m_glVertexAttrib3fvARB, "glVertexAttrib3fvARB")
1448     && QGL_constructExtensionFunc(table.m_glVertexAttrib3svARB, "glVertexAttrib3svARB")
1449     && QGL_constructExtensionFunc(table.m_glVertexAttrib3dvARB, "glVertexAttrib3dvARB")
1450     && QGL_constructExtensionFunc(table.m_glVertexAttrib4fvARB, "glVertexAttrib4fvARB")
1451     && QGL_constructExtensionFunc(table.m_glVertexAttrib4svARB, "glVertexAttrib4svARB")
1452     && QGL_constructExtensionFunc(table.m_glVertexAttrib4dvARB, "glVertexAttrib4dvARB")
1453     && QGL_constructExtensionFunc(table.m_glVertexAttrib4ivARB, "glVertexAttrib4ivARB")
1454     && QGL_constructExtensionFunc(table.m_glVertexAttrib4bvARB, "glVertexAttrib4bvARB")
1455     && QGL_constructExtensionFunc(table.m_glVertexAttrib4ubvARB, "glVertexAttrib4ubvARB")
1456     && QGL_constructExtensionFunc(table.m_glVertexAttrib4usvARB, "glVertexAttrib4usvARB")
1457     && QGL_constructExtensionFunc(table.m_glVertexAttrib4uivARB, "glVertexAttrib4uivARB")
1458     && QGL_constructExtensionFunc(table.m_glVertexAttrib4NbvARB, "glVertexAttrib4NbvARB")
1459     && QGL_constructExtensionFunc(table.m_glVertexAttrib4NsvARB, "glVertexAttrib4NsvARB")
1460     && QGL_constructExtensionFunc(table.m_glVertexAttrib4NivARB, "glVertexAttrib4NivARB")
1461     && QGL_constructExtensionFunc(table.m_glVertexAttrib4NubvARB, "glVertexAttrib4NubvARB")
1462     && QGL_constructExtensionFunc(table.m_glVertexAttrib4NusvARB, "glVertexAttrib4NusvARB")
1463     && QGL_constructExtensionFunc(table.m_glVertexAttrib4NuivARB, "glVertexAttrib4NuivARB")
1464     && QGL_constructExtensionFunc(table.m_glVertexAttribPointerARB, "glVertexAttribPointerARB")
1465     && QGL_constructExtensionFunc(table.m_glEnableVertexAttribArrayARB, "glEnableVertexAttribArrayARB")
1466     && QGL_constructExtensionFunc(table.m_glDisableVertexAttribArrayARB, "glDisableVertexAttribArrayARB")
1467     && QGL_constructExtensionFunc(table.m_glGetVertexAttribdvARB, "glGetVertexAttribdvARB")
1468     && QGL_constructExtensionFunc(table.m_glGetVertexAttribfvARB, "glGetVertexAttribfvARB")
1469     && QGL_constructExtensionFunc(table.m_glGetVertexAttribivARB, "glGetVertexAttribivARB")
1470     && QGL_constructExtensionFunc(table.m_glGetVertexAttribPointervARB, "glGetVertexAttribPointervARB")
1471     && QGL_constructExtensionFunc(table.m_glBindAttribLocationARB, "glBindAttribLocationARB")
1472     && QGL_constructExtensionFunc(table.m_glGetActiveAttribARB, "glGetActiveAttribARB")
1473     && QGL_constructExtensionFunc(table.m_glGetAttribLocationARB, "glGetAttribLocationARB");
1474
1475     if(!table.support_ARB_vertex_shader)
1476     {
1477       extension_not_implemented("GL_ARB_vertex_shader");
1478     }
1479   }
1480   else
1481   {
1482     table.support_ARB_vertex_shader = false;
1483   }
1484
1485   if(QGL_ExtensionSupported("GL_NV_vertex_program2"))
1486   {
1487     table.support_NV_vertex_program2 =
1488     QGL_constructExtensionFunc(table.m_glAreProgramsResidentNV, "glAreProgramsResidentNV")
1489     && QGL_constructExtensionFunc(table.m_glBindProgramNV, "glBindProgramNV")
1490     && QGL_constructExtensionFunc(table.m_glDeleteProgramsNV, "glDeleteProgramsNV")
1491     && QGL_constructExtensionFunc(table.m_glExecuteProgramNV, "glExecuteProgramNV")
1492     && QGL_constructExtensionFunc(table.m_glGenProgramsNV, "glGenProgramsNV")
1493     && QGL_constructExtensionFunc(table.m_glGetProgramParameterdvNV, "glGetProgramParameterdvNV")
1494     && QGL_constructExtensionFunc(table.m_glGetProgramParameterfvNV, "glGetProgramParameterfvNV")
1495     && QGL_constructExtensionFunc(table.m_glGetProgramivNV, "glGetProgramivNV")
1496     && QGL_constructExtensionFunc(table.m_glGetProgramStringNV, "glGetProgramStringNV")
1497     && QGL_constructExtensionFunc(table.m_glGetTrackMatrixivNV, "glGetTrackMatrixivNV")
1498     && QGL_constructExtensionFunc(table.m_glGetVertexAttribdvNV, "glGetVertexAttribdvNV")
1499     && QGL_constructExtensionFunc(table.m_glGetVertexAttribfvNV, "glGetVertexAttribfvNV")
1500     && QGL_constructExtensionFunc(table.m_glGetVertexAttribivNV, "glGetVertexAttribivNV")
1501     && QGL_constructExtensionFunc(table.m_glGetVertexAttribPointervNV, "glGetVertexAttribPointervNV")
1502     && QGL_constructExtensionFunc(table.m_glIsProgramNV, "glIsProgramNV")
1503     && QGL_constructExtensionFunc(table.m_glLoadProgramNV, "glLoadProgramNV")
1504     && QGL_constructExtensionFunc(table.m_glProgramParameter4fNV, "glProgramParameter4fNV")
1505     && QGL_constructExtensionFunc(table.m_glProgramParameter4fvNV, "glProgramParameter4fvNV")
1506     && QGL_constructExtensionFunc(table.m_glProgramParameters4fvNV, "glProgramParameters4fvNV")
1507     && QGL_constructExtensionFunc(table.m_glRequestResidentProgramsNV, "glRequestResidentProgramsNV")
1508     && QGL_constructExtensionFunc(table.m_glTrackMatrixNV, "glTrackMatrixNV")
1509     && QGL_constructExtensionFunc(table.m_glVertexAttribPointerNV, "glVertexAttribPointerNV")
1510     && QGL_constructExtensionFunc(table.m_glVertexAttrib1fNV, "glVertexAttrib1fNV")
1511     && QGL_constructExtensionFunc(table.m_glVertexAttrib1fvNV, "glVertexAttrib1fvNV")
1512     && QGL_constructExtensionFunc(table.m_glVertexAttrib2fNV, "glVertexAttrib2fNV")
1513     && QGL_constructExtensionFunc(table.m_glVertexAttrib2fvNV, "glVertexAttrib2fvNV")
1514     && QGL_constructExtensionFunc(table.m_glVertexAttrib3fNV, "glVertexAttrib3fNV")
1515     && QGL_constructExtensionFunc(table.m_glVertexAttrib3fvNV, "glVertexAttrib3fvNV")
1516     && QGL_constructExtensionFunc(table.m_glVertexAttrib4fNV, "glVertexAttrib4fNV")
1517     && QGL_constructExtensionFunc(table.m_glVertexAttrib4fvNV, "glVertexAttrib4fvNV")
1518     && QGL_constructExtensionFunc(table.m_glVertexAttribs1fvNV, "glVertexAttribs1fvNV")
1519     && QGL_constructExtensionFunc(table.m_glVertexAttribs2fvNV, "glVertexAttribs2fvNV")
1520     && QGL_constructExtensionFunc(table.m_glVertexAttribs3fvNV, "glVertexAttribs3fvNV")
1521     && QGL_constructExtensionFunc(table.m_glVertexAttribs4fvNV, "glVertexAttribs4fvNV");
1522
1523     if(!table.support_NV_vertex_program2)
1524     {
1525       extension_not_implemented("GL_NV_vertex_program2");
1526     }
1527   }
1528   else
1529   {
1530     table.support_NV_vertex_program2 = false;
1531     QGL_invalidateExtensionFunc(table.m_glAreProgramsResidentNV);
1532     QGL_invalidateExtensionFunc(table.m_glBindProgramNV);
1533     QGL_invalidateExtensionFunc(table.m_glDeleteProgramsNV);
1534     QGL_invalidateExtensionFunc(table.m_glExecuteProgramNV);
1535     QGL_invalidateExtensionFunc(table.m_glGenProgramsNV);
1536     QGL_invalidateExtensionFunc(table.m_glGetProgramParameterdvNV);
1537     QGL_invalidateExtensionFunc(table.m_glGetProgramParameterfvNV);
1538     QGL_invalidateExtensionFunc(table.m_glGetProgramivNV);
1539     QGL_invalidateExtensionFunc(table.m_glGetProgramStringNV);
1540     QGL_invalidateExtensionFunc(table.m_glGetTrackMatrixivNV);
1541     QGL_invalidateExtensionFunc(table.m_glGetVertexAttribdvNV);
1542     QGL_invalidateExtensionFunc(table.m_glGetVertexAttribfvNV);
1543     QGL_invalidateExtensionFunc(table.m_glGetVertexAttribivNV);
1544     QGL_invalidateExtensionFunc(table.m_glGetVertexAttribPointervNV);
1545     QGL_invalidateExtensionFunc(table.m_glIsProgramNV);
1546     QGL_invalidateExtensionFunc(table.m_glLoadProgramNV);
1547     QGL_invalidateExtensionFunc(table.m_glProgramParameter4fNV);
1548     QGL_invalidateExtensionFunc(table.m_glProgramParameter4fvNV);
1549     QGL_invalidateExtensionFunc(table.m_glProgramParameters4fvNV);
1550     QGL_invalidateExtensionFunc(table.m_glRequestResidentProgramsNV);
1551     QGL_invalidateExtensionFunc(table.m_glTrackMatrixNV);
1552     QGL_invalidateExtensionFunc(table.m_glVertexAttribPointerNV);
1553     QGL_invalidateExtensionFunc(table.m_glVertexAttrib1fNV);
1554     QGL_invalidateExtensionFunc(table.m_glVertexAttrib1fvNV);
1555     QGL_invalidateExtensionFunc(table.m_glVertexAttrib2fNV);
1556     QGL_invalidateExtensionFunc(table.m_glVertexAttrib2fvNV);
1557     QGL_invalidateExtensionFunc(table.m_glVertexAttrib3fNV);
1558     QGL_invalidateExtensionFunc(table.m_glVertexAttrib3fvNV);
1559     QGL_invalidateExtensionFunc(table.m_glVertexAttrib4fNV);
1560     QGL_invalidateExtensionFunc(table.m_glVertexAttrib4fvNV);
1561     QGL_invalidateExtensionFunc(table.m_glVertexAttribs1fvNV);
1562     QGL_invalidateExtensionFunc(table.m_glVertexAttribs2fvNV);
1563     QGL_invalidateExtensionFunc(table.m_glVertexAttribs3fvNV);
1564     QGL_invalidateExtensionFunc(table.m_glVertexAttribs4fvNV);
1565   }
1566
1567   if(QGL_ExtensionSupported("GL_NV_fragment_program"))
1568   {
1569     table.support_NV_fragment_program =
1570     QGL_constructExtensionFunc(table.m_glProgramNamedParameter4fNV, "glProgramNamedParameter4fNV")
1571     && QGL_constructExtensionFunc(table.m_glProgramNamedParameter4fvNV, "glProgramNamedParameter4fvNV")
1572     && QGL_constructExtensionFunc(table.m_glGetProgramNamedParameterfvNV, "glGetProgramNamedParameterfvNV");
1573
1574     if(!table.support_NV_fragment_program)
1575     {
1576       extension_not_implemented("GL_NV_fragment_program");
1577     }
1578   }
1579   else
1580   {
1581     table.support_NV_fragment_program = false;
1582   }
1583
1584   table.support_ARB_fragment_shader = QGL_ExtensionSupported("GL_ARB_fragment_shader");
1585   table.support_ARB_shading_language_100 = QGL_ExtensionSupported("GL_ARB_shading_language_100");
1586 }
1587
1588 void QGL_sharedContextDestroyed(OpenGLBinding& table)
1589 {
1590   QGL_clear(table);
1591 }
1592
1593
1594 void QGL_assertNoErrors()
1595 {
1596   GLenum error = GlobalOpenGL().m_glGetError();
1597   while (error != GL_NO_ERROR)
1598   {
1599     const char* errorString = reinterpret_cast<const char*>(qgluErrorString(error));
1600     if (error == GL_OUT_OF_MEMORY)
1601     {
1602       ERROR_MESSAGE("OpenGL out of memory error: " << errorString);
1603     }
1604     else
1605     {
1606       ERROR_MESSAGE("OpenGL error: " << errorString);
1607     }
1608     error = GlobalOpenGL().m_glGetError();
1609   }
1610 }
1611
1612
1613 class QglAPI
1614 {
1615   OpenGLBinding m_qgl;
1616 public:
1617   typedef OpenGLBinding Type;
1618   STRING_CONSTANT(Name, "*");
1619
1620   QglAPI()
1621   {
1622     QGL_Init(m_qgl);
1623
1624     m_qgl.assertNoErrors = &QGL_assertNoErrors;
1625   }
1626   ~QglAPI()
1627   {
1628     QGL_Shutdown(m_qgl);
1629   }
1630   OpenGLBinding* getTable()
1631   {
1632     return &m_qgl;
1633   }
1634 };
1635
1636 #include "modulesystem/singletonmodule.h"
1637 #include "modulesystem/moduleregistry.h"
1638
1639 typedef SingletonModule<QglAPI> QglModule;
1640 typedef Static<QglModule> StaticQglModule;
1641 StaticRegisterModule staticRegisterQgl(StaticQglModule::instance());