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