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