Merge commit '515673c08f8718a237e90c2130a1f5294f966d6a'
[xonotic/netradiant.git] / radiant / qgl.cpp
1 /*
2 Copyright (C) 1999-2006 Id Software, Inc. and contributors.
3 For a list of contributors, see the accompanying CONTRIBUTORS file.
4
5 This file is part of GtkRadiant.
6
7 GtkRadiant is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
11
12 GtkRadiant is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with GtkRadiant; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
20 */
21
22
23 #include "qgl.h"
24
25 #include "debugging/debugging.h"
26
27 #include <stdio.h>
28 #include <stdlib.h>
29 #include <string.h>
30
31 #if defined(_WIN32)
32 #define WINGDIAPI __declspec(dllimport)
33 #define APIENTRY __stdcall
34 #endif
35
36 #include <GL/gl.h>
37
38 #if defined(_WIN32)
39 #undef WINGDIAPI
40 #undef APIENTRY
41 #endif
42
43 #include "igl.h"
44
45
46
47
48 #if defined(_WIN32)
49
50 #include <wtypes.h>
51
52 PROC  ( WINAPI * qwglGetProcAddress)(LPCSTR);
53
54 #elif defined (XWINDOWS)
55
56 #include <GL/glx.h>
57 #include <dlfcn.h>
58 #include <gdk/gdkx.h>
59
60 Bool         (*qglXQueryExtension)( Display *dpy, int *errorb, int *event );
61 void*        (*qglXGetProcAddressARB) (const GLubyte *procName);
62 typedef void* (*glXGetProcAddressARBProc) (const GLubyte *procName);
63
64 #else
65 #error "unsupported platform"
66 #endif
67
68
69 void QGL_Shutdown(OpenGLBinding& table)
70 {
71   globalOutputStream() << "Shutting down OpenGL module...";
72
73 #if defined(WIN32)
74   qwglGetProcAddress           = 0;
75 #elif defined(XWINDOWS)
76   qglXQueryExtension           = glXQueryExtension;
77   qglXGetProcAddressARB        = 0;
78 #else
79 #error "unsupported platform"
80 #endif
81
82   globalOutputStream() << "Done.\n";
83 }
84
85
86 typedef struct glu_error_struct
87 {
88     GLenum     errnum;
89     const char *errstr;
90 } GLU_ERROR_STRUCT;
91
92 GLU_ERROR_STRUCT glu_errlist[] = {
93   {GL_NO_ERROR, "GL_NO_ERROR - no error"},
94   {GL_INVALID_ENUM, "GL_INVALID_ENUM - An unacceptable value is specified for an enumerated argument."},
95   {GL_INVALID_VALUE, "GL_INVALID_VALUE - A numeric argument is out of range."},
96   {GL_INVALID_OPERATION, "GL_INVALID_OPERATION - The specified operation is not allowed in the current state."},
97   {GL_STACK_OVERFLOW, "GL_STACK_OVERFLOW - Function would cause a stack overflow."},
98   {GL_STACK_UNDERFLOW, "GL_STACK_UNDERFLOW - Function would cause a stack underflow."},
99   {GL_OUT_OF_MEMORY, "GL_OUT_OF_MEMORY - There is not enough memory left to execute the function."},
100   {0, 0}
101 };
102
103 const GLubyte* qgluErrorString(GLenum errCode )
104 {
105   int search = 0;
106   for (search = 0; glu_errlist[search].errstr; search++)
107   {
108     if (errCode == glu_errlist[search].errnum)
109       return (const GLubyte *)glu_errlist[search].errstr;
110   } //end for
111   return (const GLubyte *)"Unknown error";
112 }
113
114
115 void glInvalidFunction()
116 {
117   ERROR_MESSAGE("calling an invalid OpenGL function");
118 }
119
120 #define EXTENSIONS_ENABLED 1
121
122 bool QGL_ExtensionSupported(const char* extension)
123 {
124 #if EXTENSIONS_ENABLED
125   const GLubyte *extensions = 0;
126   const GLubyte *start;
127   GLubyte *where, *terminator;
128
129   // Extension names should not have spaces.
130   where = (GLubyte *) strchr (extension, ' ');
131   if (where || *extension == '\0')
132     return false;
133
134   extensions = GlobalOpenGL().m_glGetString (GL_EXTENSIONS);
135 #ifndef __APPLE__
136   if (!extensions)
137     return false;
138 #endif
139
140   // It takes a bit of care to be fool-proof about parsing the
141   // OpenGL extensions string. Don't be fooled by sub-strings, etc.
142   for (start = extensions; ;)
143   {
144     where = (GLubyte *) strstr ((const char *) start, extension);
145     if (!where)
146       break;
147
148     terminator = where + strlen (extension);
149     if (where == start || *(where - 1) == ' ')
150       if (*terminator == ' ' || *terminator == '\0')
151         return true;
152
153     start = terminator;
154   }
155 #endif
156
157   return false;
158 }
159
160 typedef int (QGL_DLLEXPORT *QGLFunctionPointer)();
161
162 QGLFunctionPointer QGL_getExtensionFunc(const char* symbol)
163 {
164 #if defined(XWINDOWS)
165   //ASSERT_NOTNULL(qglXGetProcAddressARB);
166   if (qglXGetProcAddressARB == 0)
167   {
168     return reinterpret_cast<QGLFunctionPointer>(glInvalidFunction);
169   }
170   else
171   {
172     return (QGLFunctionPointer)qglXGetProcAddressARB(reinterpret_cast<const GLubyte*>(symbol));
173   }
174 #elif defined(WIN32)
175   ASSERT_NOTNULL(qwglGetProcAddress);
176   return qwglGetProcAddress(symbol);
177 #else
178 #error "unsupported platform"
179 #endif
180 }
181
182
183 template<typename Func>
184 bool QGL_constructExtensionFunc(Func& func, const char* symbol)
185 {
186   func = reinterpret_cast<Func>(QGL_getExtensionFunc(symbol));
187   return func != 0;
188 }
189
190 template<typename Func>
191 void QGL_invalidateExtensionFunc(Func& func)
192 {
193   func = reinterpret_cast<Func>(glInvalidFunction);
194 }
195
196 void QGL_clear(OpenGLBinding& table)
197 {
198   QGL_invalidateExtensionFunc(table.m_glAccum);
199   QGL_invalidateExtensionFunc(table.m_glAlphaFunc);
200   QGL_invalidateExtensionFunc(table.m_glAreTexturesResident);
201   QGL_invalidateExtensionFunc(table.m_glArrayElement);
202   QGL_invalidateExtensionFunc(table.m_glBegin);
203   QGL_invalidateExtensionFunc(table.m_glBindTexture);
204   QGL_invalidateExtensionFunc(table.m_glBitmap);
205   QGL_invalidateExtensionFunc(table.m_glBlendFunc);
206   QGL_invalidateExtensionFunc(table.m_glCallList);
207   QGL_invalidateExtensionFunc(table.m_glCallLists);
208   QGL_invalidateExtensionFunc(table.m_glClear);
209   QGL_invalidateExtensionFunc(table.m_glClearAccum);
210   QGL_invalidateExtensionFunc(table.m_glClearColor);
211   QGL_invalidateExtensionFunc(table.m_glClearDepth);
212   QGL_invalidateExtensionFunc(table.m_glClearIndex);
213   QGL_invalidateExtensionFunc(table.m_glClearStencil);
214   QGL_invalidateExtensionFunc(table.m_glClipPlane);
215   QGL_invalidateExtensionFunc(table.m_glColor3b);
216   QGL_invalidateExtensionFunc(table.m_glColor3bv);
217   QGL_invalidateExtensionFunc(table.m_glColor3d);
218   QGL_invalidateExtensionFunc(table.m_glColor3dv);
219   QGL_invalidateExtensionFunc(table.m_glColor3f);
220   QGL_invalidateExtensionFunc(table.m_glColor3fv);
221   QGL_invalidateExtensionFunc(table.m_glColor3i);
222   QGL_invalidateExtensionFunc(table.m_glColor3iv);
223   QGL_invalidateExtensionFunc(table.m_glColor3s);
224   QGL_invalidateExtensionFunc(table.m_glColor3sv);
225   QGL_invalidateExtensionFunc(table.m_glColor3ub);
226   QGL_invalidateExtensionFunc(table.m_glColor3ubv);
227   QGL_invalidateExtensionFunc(table.m_glColor3ui);
228   QGL_invalidateExtensionFunc(table.m_glColor3uiv);
229   QGL_invalidateExtensionFunc(table.m_glColor3us);
230   QGL_invalidateExtensionFunc(table.m_glColor3usv);
231   QGL_invalidateExtensionFunc(table.m_glColor4b);
232   QGL_invalidateExtensionFunc(table.m_glColor4bv);
233   QGL_invalidateExtensionFunc(table.m_glColor4d);
234   QGL_invalidateExtensionFunc(table.m_glColor4dv);
235   QGL_invalidateExtensionFunc(table.m_glColor4f);
236   QGL_invalidateExtensionFunc(table.m_glColor4fv);
237   QGL_invalidateExtensionFunc(table.m_glColor4i);
238   QGL_invalidateExtensionFunc(table.m_glColor4iv);
239   QGL_invalidateExtensionFunc(table.m_glColor4s);
240   QGL_invalidateExtensionFunc(table.m_glColor4sv);
241   QGL_invalidateExtensionFunc(table.m_glColor4ub);
242   QGL_invalidateExtensionFunc(table.m_glColor4ubv);
243   QGL_invalidateExtensionFunc(table.m_glColor4ui);
244   QGL_invalidateExtensionFunc(table.m_glColor4uiv);
245   QGL_invalidateExtensionFunc(table.m_glColor4us);
246   QGL_invalidateExtensionFunc(table.m_glColor4usv);
247   QGL_invalidateExtensionFunc(table.m_glColorMask);
248   QGL_invalidateExtensionFunc(table.m_glColorMaterial);
249   QGL_invalidateExtensionFunc(table.m_glColorPointer);
250   QGL_invalidateExtensionFunc(table.m_glCopyPixels);
251   QGL_invalidateExtensionFunc(table.m_glCopyTexImage1D);
252   QGL_invalidateExtensionFunc(table.m_glCopyTexImage2D);
253   QGL_invalidateExtensionFunc(table.m_glCopyTexSubImage1D);
254   QGL_invalidateExtensionFunc(table.m_glCopyTexSubImage2D);
255   QGL_invalidateExtensionFunc(table.m_glCullFace);
256   QGL_invalidateExtensionFunc(table.m_glDeleteLists);
257   QGL_invalidateExtensionFunc(table.m_glDeleteTextures);
258   QGL_invalidateExtensionFunc(table.m_glDepthFunc);
259   QGL_invalidateExtensionFunc(table.m_glDepthMask);
260   QGL_invalidateExtensionFunc(table.m_glDepthRange);
261   QGL_invalidateExtensionFunc(table.m_glDisable);
262   QGL_invalidateExtensionFunc(table.m_glDisableClientState);
263   QGL_invalidateExtensionFunc(table.m_glDrawArrays);
264   QGL_invalidateExtensionFunc(table.m_glDrawBuffer);
265   QGL_invalidateExtensionFunc(table.m_glDrawElements);
266   QGL_invalidateExtensionFunc(table.m_glDrawPixels);
267   QGL_invalidateExtensionFunc(table.m_glEdgeFlag);
268   QGL_invalidateExtensionFunc(table.m_glEdgeFlagPointer);
269   QGL_invalidateExtensionFunc(table.m_glEdgeFlagv);
270   QGL_invalidateExtensionFunc(table.m_glEnable);
271   QGL_invalidateExtensionFunc(table.m_glEnableClientState);
272   QGL_invalidateExtensionFunc(table.m_glEnd);
273   QGL_invalidateExtensionFunc(table.m_glEndList);
274   QGL_invalidateExtensionFunc(table.m_glEvalCoord1d);
275   QGL_invalidateExtensionFunc(table.m_glEvalCoord1dv);
276   QGL_invalidateExtensionFunc(table.m_glEvalCoord1f);
277   QGL_invalidateExtensionFunc(table.m_glEvalCoord1fv);
278   QGL_invalidateExtensionFunc(table.m_glEvalCoord2d);
279   QGL_invalidateExtensionFunc(table.m_glEvalCoord2dv);
280   QGL_invalidateExtensionFunc(table.m_glEvalCoord2f);
281   QGL_invalidateExtensionFunc(table.m_glEvalCoord2fv);
282   QGL_invalidateExtensionFunc(table.m_glEvalMesh1);
283   QGL_invalidateExtensionFunc(table.m_glEvalMesh2);
284   QGL_invalidateExtensionFunc(table.m_glEvalPoint1);
285   QGL_invalidateExtensionFunc(table.m_glEvalPoint2);
286   QGL_invalidateExtensionFunc(table.m_glFeedbackBuffer);
287   QGL_invalidateExtensionFunc(table.m_glFinish);
288   QGL_invalidateExtensionFunc(table.m_glFlush);
289   QGL_invalidateExtensionFunc(table.m_glFogf);
290   QGL_invalidateExtensionFunc(table.m_glFogfv);
291   QGL_invalidateExtensionFunc(table.m_glFogi);
292   QGL_invalidateExtensionFunc(table.m_glFogiv);
293   QGL_invalidateExtensionFunc(table.m_glFrontFace);
294   QGL_invalidateExtensionFunc(table.m_glFrustum);
295   QGL_invalidateExtensionFunc(table.m_glGenLists);
296   QGL_invalidateExtensionFunc(table.m_glGenTextures);
297   QGL_invalidateExtensionFunc(table.m_glGetBooleanv);
298   QGL_invalidateExtensionFunc(table.m_glGetClipPlane);
299   QGL_invalidateExtensionFunc(table.m_glGetDoublev);
300   QGL_invalidateExtensionFunc(table.m_glGetError);
301   QGL_invalidateExtensionFunc(table.m_glGetFloatv);
302   QGL_invalidateExtensionFunc(table.m_glGetIntegerv);
303   QGL_invalidateExtensionFunc(table.m_glGetLightfv);
304   QGL_invalidateExtensionFunc(table.m_glGetLightiv);
305   QGL_invalidateExtensionFunc(table.m_glGetMapdv);
306   QGL_invalidateExtensionFunc(table.m_glGetMapfv);
307   QGL_invalidateExtensionFunc(table.m_glGetMapiv);
308   QGL_invalidateExtensionFunc(table.m_glGetMaterialfv);
309   QGL_invalidateExtensionFunc(table.m_glGetMaterialiv);
310   QGL_invalidateExtensionFunc(table.m_glGetPixelMapfv);
311   QGL_invalidateExtensionFunc(table.m_glGetPixelMapuiv);
312   QGL_invalidateExtensionFunc(table.m_glGetPixelMapusv);
313   QGL_invalidateExtensionFunc(table.m_glGetPointerv);
314   QGL_invalidateExtensionFunc(table.m_glGetPolygonStipple);
315   table.m_glGetString = glGetString;
316   QGL_invalidateExtensionFunc(table.m_glGetTexEnvfv);
317   QGL_invalidateExtensionFunc(table.m_glGetTexEnviv);
318   QGL_invalidateExtensionFunc(table.m_glGetTexGendv);
319   QGL_invalidateExtensionFunc(table.m_glGetTexGenfv);
320   QGL_invalidateExtensionFunc(table.m_glGetTexGeniv);
321   QGL_invalidateExtensionFunc(table.m_glGetTexImage);
322   QGL_invalidateExtensionFunc(table.m_glGetTexLevelParameterfv);
323   QGL_invalidateExtensionFunc(table.m_glGetTexLevelParameteriv);
324   QGL_invalidateExtensionFunc(table.m_glGetTexParameterfv);
325   QGL_invalidateExtensionFunc(table.m_glGetTexParameteriv);
326   QGL_invalidateExtensionFunc(table.m_glHint);
327   QGL_invalidateExtensionFunc(table.m_glIndexMask);
328   QGL_invalidateExtensionFunc(table.m_glIndexPointer);
329   QGL_invalidateExtensionFunc(table.m_glIndexd);
330   QGL_invalidateExtensionFunc(table.m_glIndexdv);
331   QGL_invalidateExtensionFunc(table.m_glIndexf);
332   QGL_invalidateExtensionFunc(table.m_glIndexfv);
333   QGL_invalidateExtensionFunc(table.m_glIndexi);
334   QGL_invalidateExtensionFunc(table.m_glIndexiv);
335   QGL_invalidateExtensionFunc(table.m_glIndexs);
336   QGL_invalidateExtensionFunc(table.m_glIndexsv);
337   QGL_invalidateExtensionFunc(table.m_glIndexub);
338   QGL_invalidateExtensionFunc(table.m_glIndexubv);
339   QGL_invalidateExtensionFunc(table.m_glInitNames);
340   QGL_invalidateExtensionFunc(table.m_glInterleavedArrays);
341   QGL_invalidateExtensionFunc(table.m_glIsEnabled);
342   QGL_invalidateExtensionFunc(table.m_glIsList);
343   QGL_invalidateExtensionFunc(table.m_glIsTexture);
344   QGL_invalidateExtensionFunc(table.m_glLightModelf);
345   QGL_invalidateExtensionFunc(table.m_glLightModelfv);
346   QGL_invalidateExtensionFunc(table.m_glLightModeli);
347   QGL_invalidateExtensionFunc(table.m_glLightModeliv);
348   QGL_invalidateExtensionFunc(table.m_glLightf);
349   QGL_invalidateExtensionFunc(table.m_glLightfv);
350   QGL_invalidateExtensionFunc(table.m_glLighti);
351   QGL_invalidateExtensionFunc(table.m_glLightiv);
352   QGL_invalidateExtensionFunc(table.m_glLineStipple);
353   QGL_invalidateExtensionFunc(table.m_glLineWidth);
354   QGL_invalidateExtensionFunc(table.m_glListBase);
355   QGL_invalidateExtensionFunc(table.m_glLoadIdentity);
356   QGL_invalidateExtensionFunc(table.m_glLoadMatrixd);
357   QGL_invalidateExtensionFunc(table.m_glLoadMatrixf);
358   QGL_invalidateExtensionFunc(table.m_glLoadName);
359   QGL_invalidateExtensionFunc(table.m_glLogicOp);
360   QGL_invalidateExtensionFunc(table.m_glMap1d);
361   QGL_invalidateExtensionFunc(table.m_glMap1f);
362   QGL_invalidateExtensionFunc(table.m_glMap2d);
363   QGL_invalidateExtensionFunc(table.m_glMap2f);
364   QGL_invalidateExtensionFunc(table.m_glMapGrid1d);
365   QGL_invalidateExtensionFunc(table.m_glMapGrid1f);
366   QGL_invalidateExtensionFunc(table.m_glMapGrid2d);
367   QGL_invalidateExtensionFunc(table.m_glMapGrid2f);
368   QGL_invalidateExtensionFunc(table.m_glMaterialf);
369   QGL_invalidateExtensionFunc(table.m_glMaterialfv);
370   QGL_invalidateExtensionFunc(table.m_glMateriali);
371   QGL_invalidateExtensionFunc(table.m_glMaterialiv);
372   QGL_invalidateExtensionFunc(table.m_glMatrixMode);
373   QGL_invalidateExtensionFunc(table.m_glMultMatrixd);
374   QGL_invalidateExtensionFunc(table.m_glMultMatrixf);
375   QGL_invalidateExtensionFunc(table.m_glNewList);
376   QGL_invalidateExtensionFunc(table.m_glNormal3b);
377   QGL_invalidateExtensionFunc(table.m_glNormal3bv);
378   QGL_invalidateExtensionFunc(table.m_glNormal3d);
379   QGL_invalidateExtensionFunc(table.m_glNormal3dv);
380   QGL_invalidateExtensionFunc(table.m_glNormal3f);
381   QGL_invalidateExtensionFunc(table.m_glNormal3fv);
382   QGL_invalidateExtensionFunc(table.m_glNormal3i);
383   QGL_invalidateExtensionFunc(table.m_glNormal3iv);
384   QGL_invalidateExtensionFunc(table.m_glNormal3s);
385   QGL_invalidateExtensionFunc(table.m_glNormal3sv);
386   QGL_invalidateExtensionFunc(table.m_glNormalPointer);
387   QGL_invalidateExtensionFunc(table.m_glOrtho);
388   QGL_invalidateExtensionFunc(table.m_glPassThrough);
389   QGL_invalidateExtensionFunc(table.m_glPixelMapfv);
390   QGL_invalidateExtensionFunc(table.m_glPixelMapuiv);
391   QGL_invalidateExtensionFunc(table.m_glPixelMapusv);
392   QGL_invalidateExtensionFunc(table.m_glPixelStoref);
393   QGL_invalidateExtensionFunc(table.m_glPixelStorei);
394   QGL_invalidateExtensionFunc(table.m_glPixelTransferf);
395   QGL_invalidateExtensionFunc(table.m_glPixelTransferi);
396   QGL_invalidateExtensionFunc(table.m_glPixelZoom);
397   QGL_invalidateExtensionFunc(table.m_glPointSize);
398   QGL_invalidateExtensionFunc(table.m_glPolygonMode);
399   QGL_invalidateExtensionFunc(table.m_glPolygonOffset);
400   QGL_invalidateExtensionFunc(table.m_glPolygonStipple);
401   QGL_invalidateExtensionFunc(table.m_glPopAttrib);
402   QGL_invalidateExtensionFunc(table.m_glPopClientAttrib);
403   QGL_invalidateExtensionFunc(table.m_glPopMatrix);
404   QGL_invalidateExtensionFunc(table.m_glPopName);
405   QGL_invalidateExtensionFunc(table.m_glPrioritizeTextures);
406   QGL_invalidateExtensionFunc(table.m_glPushAttrib);
407   QGL_invalidateExtensionFunc(table.m_glPushClientAttrib);
408   QGL_invalidateExtensionFunc(table.m_glPushMatrix);
409   QGL_invalidateExtensionFunc(table.m_glPushName);
410   QGL_invalidateExtensionFunc(table.m_glRasterPos2d);
411   QGL_invalidateExtensionFunc(table.m_glRasterPos2dv);
412   QGL_invalidateExtensionFunc(table.m_glRasterPos2f);
413   QGL_invalidateExtensionFunc(table.m_glRasterPos2fv);
414   QGL_invalidateExtensionFunc(table.m_glRasterPos2i);
415   QGL_invalidateExtensionFunc(table.m_glRasterPos2iv);
416   QGL_invalidateExtensionFunc(table.m_glRasterPos2s);
417   QGL_invalidateExtensionFunc(table.m_glRasterPos2sv);
418   QGL_invalidateExtensionFunc(table.m_glRasterPos3d);
419   QGL_invalidateExtensionFunc(table.m_glRasterPos3dv);
420   QGL_invalidateExtensionFunc(table.m_glRasterPos3f);
421   QGL_invalidateExtensionFunc(table.m_glRasterPos3fv);
422   QGL_invalidateExtensionFunc(table.m_glRasterPos3i);
423   QGL_invalidateExtensionFunc(table.m_glRasterPos3iv);
424   QGL_invalidateExtensionFunc(table.m_glRasterPos3s);
425   QGL_invalidateExtensionFunc(table.m_glRasterPos3sv);
426   QGL_invalidateExtensionFunc(table.m_glRasterPos4d);
427   QGL_invalidateExtensionFunc(table.m_glRasterPos4dv);
428   QGL_invalidateExtensionFunc(table.m_glRasterPos4f);
429   QGL_invalidateExtensionFunc(table.m_glRasterPos4fv);
430   QGL_invalidateExtensionFunc(table.m_glRasterPos4i);
431   QGL_invalidateExtensionFunc(table.m_glRasterPos4iv);
432   QGL_invalidateExtensionFunc(table.m_glRasterPos4s);
433   QGL_invalidateExtensionFunc(table.m_glRasterPos4sv);
434   QGL_invalidateExtensionFunc(table.m_glReadBuffer);
435   QGL_invalidateExtensionFunc(table.m_glReadPixels);
436   QGL_invalidateExtensionFunc(table.m_glRectd);
437   QGL_invalidateExtensionFunc(table.m_glRectdv);
438   QGL_invalidateExtensionFunc(table.m_glRectf);
439   QGL_invalidateExtensionFunc(table.m_glRectfv);
440   QGL_invalidateExtensionFunc(table.m_glRecti);
441   QGL_invalidateExtensionFunc(table.m_glRectiv);
442   QGL_invalidateExtensionFunc(table.m_glRects);
443   QGL_invalidateExtensionFunc(table.m_glRectsv);
444   QGL_invalidateExtensionFunc(table.m_glRenderMode);
445   QGL_invalidateExtensionFunc(table.m_glRotated);
446   QGL_invalidateExtensionFunc(table.m_glRotatef);
447   QGL_invalidateExtensionFunc(table.m_glScaled);
448   QGL_invalidateExtensionFunc(table.m_glScalef);
449   QGL_invalidateExtensionFunc(table.m_glScissor);
450   QGL_invalidateExtensionFunc(table.m_glSelectBuffer);
451   QGL_invalidateExtensionFunc(table.m_glShadeModel);
452   QGL_invalidateExtensionFunc(table.m_glStencilFunc);
453   QGL_invalidateExtensionFunc(table.m_glStencilMask);
454   QGL_invalidateExtensionFunc(table.m_glStencilOp);
455   QGL_invalidateExtensionFunc(table.m_glTexCoord1d);
456   QGL_invalidateExtensionFunc(table.m_glTexCoord1dv);
457   QGL_invalidateExtensionFunc(table.m_glTexCoord1f);
458   QGL_invalidateExtensionFunc(table.m_glTexCoord1fv);
459   QGL_invalidateExtensionFunc(table.m_glTexCoord1i);
460   QGL_invalidateExtensionFunc(table.m_glTexCoord1iv);
461   QGL_invalidateExtensionFunc(table.m_glTexCoord1s);
462   QGL_invalidateExtensionFunc(table.m_glTexCoord1sv);
463   QGL_invalidateExtensionFunc(table.m_glTexCoord2d);
464   QGL_invalidateExtensionFunc(table.m_glTexCoord2dv);
465   QGL_invalidateExtensionFunc(table.m_glTexCoord2f);
466   QGL_invalidateExtensionFunc(table.m_glTexCoord2fv);
467   QGL_invalidateExtensionFunc(table.m_glTexCoord2i);
468   QGL_invalidateExtensionFunc(table.m_glTexCoord2iv);
469   QGL_invalidateExtensionFunc(table.m_glTexCoord2s);
470   QGL_invalidateExtensionFunc(table.m_glTexCoord2sv);
471   QGL_invalidateExtensionFunc(table.m_glTexCoord3d);
472   QGL_invalidateExtensionFunc(table.m_glTexCoord3dv);
473   QGL_invalidateExtensionFunc(table.m_glTexCoord3f);
474   QGL_invalidateExtensionFunc(table.m_glTexCoord3fv);
475   QGL_invalidateExtensionFunc(table.m_glTexCoord3i);
476   QGL_invalidateExtensionFunc(table.m_glTexCoord3iv);
477   QGL_invalidateExtensionFunc(table.m_glTexCoord3s);
478   QGL_invalidateExtensionFunc(table.m_glTexCoord3sv);
479   QGL_invalidateExtensionFunc(table.m_glTexCoord4d);
480   QGL_invalidateExtensionFunc(table.m_glTexCoord4dv);
481   QGL_invalidateExtensionFunc(table.m_glTexCoord4f);
482   QGL_invalidateExtensionFunc(table.m_glTexCoord4fv);
483   QGL_invalidateExtensionFunc(table.m_glTexCoord4i);
484   QGL_invalidateExtensionFunc(table.m_glTexCoord4iv);
485   QGL_invalidateExtensionFunc(table.m_glTexCoord4s);
486   QGL_invalidateExtensionFunc(table.m_glTexCoord4sv);
487   QGL_invalidateExtensionFunc(table.m_glTexCoordPointer);
488   QGL_invalidateExtensionFunc(table.m_glTexEnvf);
489   QGL_invalidateExtensionFunc(table.m_glTexEnvfv);
490   QGL_invalidateExtensionFunc(table.m_glTexEnvi);
491   QGL_invalidateExtensionFunc(table.m_glTexEnviv);
492   QGL_invalidateExtensionFunc(table.m_glTexGend);
493   QGL_invalidateExtensionFunc(table.m_glTexGendv);
494   QGL_invalidateExtensionFunc(table.m_glTexGenf);
495   QGL_invalidateExtensionFunc(table.m_glTexGenfv);
496   QGL_invalidateExtensionFunc(table.m_glTexGeni);
497   QGL_invalidateExtensionFunc(table.m_glTexGeniv);
498   QGL_invalidateExtensionFunc(table.m_glTexImage1D);
499   QGL_invalidateExtensionFunc(table.m_glTexImage2D);
500   QGL_invalidateExtensionFunc(table.m_glTexParameterf);
501   QGL_invalidateExtensionFunc(table.m_glTexParameterfv);
502   QGL_invalidateExtensionFunc(table.m_glTexParameteri);
503   QGL_invalidateExtensionFunc(table.m_glTexParameteriv);
504   QGL_invalidateExtensionFunc(table.m_glTexSubImage1D);
505   QGL_invalidateExtensionFunc(table.m_glTexSubImage2D);
506   QGL_invalidateExtensionFunc(table.m_glTranslated);
507   QGL_invalidateExtensionFunc(table.m_glTranslatef);
508   QGL_invalidateExtensionFunc(table.m_glVertex2d);
509   QGL_invalidateExtensionFunc(table.m_glVertex2dv);
510   QGL_invalidateExtensionFunc(table.m_glVertex2f);
511   QGL_invalidateExtensionFunc(table.m_glVertex2fv);
512   QGL_invalidateExtensionFunc(table.m_glVertex2i);
513   QGL_invalidateExtensionFunc(table.m_glVertex2iv);
514   QGL_invalidateExtensionFunc(table.m_glVertex2s);
515   QGL_invalidateExtensionFunc(table.m_glVertex2sv);
516   QGL_invalidateExtensionFunc(table.m_glVertex3d);
517   QGL_invalidateExtensionFunc(table.m_glVertex3dv);
518   QGL_invalidateExtensionFunc(table.m_glVertex3f);
519   QGL_invalidateExtensionFunc(table.m_glVertex3fv);
520   QGL_invalidateExtensionFunc(table.m_glVertex3i);
521   QGL_invalidateExtensionFunc(table.m_glVertex3iv);
522   QGL_invalidateExtensionFunc(table.m_glVertex3s);
523   QGL_invalidateExtensionFunc(table.m_glVertex3sv);
524   QGL_invalidateExtensionFunc(table.m_glVertex4d);
525   QGL_invalidateExtensionFunc(table.m_glVertex4dv);
526   QGL_invalidateExtensionFunc(table.m_glVertex4f);
527   QGL_invalidateExtensionFunc(table.m_glVertex4fv);
528   QGL_invalidateExtensionFunc(table.m_glVertex4i);
529   QGL_invalidateExtensionFunc(table.m_glVertex4iv);
530   QGL_invalidateExtensionFunc(table.m_glVertex4s);
531   QGL_invalidateExtensionFunc(table.m_glVertex4sv);
532   QGL_invalidateExtensionFunc(table.m_glVertexPointer);
533   QGL_invalidateExtensionFunc(table.m_glViewport);
534 }
535
536 int QGL_Init(OpenGLBinding& table)
537 {
538   QGL_clear(table);
539
540 #if defined(WIN32)
541   qwglGetProcAddress           = wglGetProcAddress;
542 #elif defined(XWINDOWS)
543   qglXGetProcAddressARB = (glXGetProcAddressARBProc)dlsym(RTLD_DEFAULT, "glXGetProcAddressARB"); 
544   if ((qglXQueryExtension == 0) || (qglXQueryExtension(GDK_DISPLAY(),0,0) != True))
545     return 0;
546 #else
547 #error "unsupported platform"
548 #endif
549
550   return 1;
551 }
552
553 int g_qglMajorVersion = 0;
554 int g_qglMinorVersion = 0;
555
556 // requires a valid gl context
557 void QGL_InitVersion()
558 {
559 #if EXTENSIONS_ENABLED
560   const std::size_t versionSize = 256;
561   char version[versionSize];
562   strncpy(version, reinterpret_cast<const char*>(GlobalOpenGL().m_glGetString(GL_VERSION)), versionSize - 1);
563   version[versionSize - 1] = '\0';
564   char* firstDot = strchr(version, '.');
565   ASSERT_NOTNULL(firstDot);
566   *firstDot = '\0';
567   g_qglMajorVersion = atoi(version);
568   char* secondDot = strchr(firstDot + 1, '.');
569   if(secondDot != 0)
570   {
571     *secondDot = '\0';
572   }
573   g_qglMinorVersion = atoi(firstDot + 1);
574 #else
575   g_qglMajorVersion = 1;
576   g_qglMinorVersion = 1;
577 #endif
578 }
579
580
581 inline void extension_not_implemented(const char* extension)
582 {
583   globalErrorStream() << "WARNING: OpenGL driver reports support for " << extension << " but does not implement it\n";
584 }
585
586 float g_maxTextureAnisotropy;
587
588 float QGL_maxTextureAnisotropy()
589 {
590   return g_maxTextureAnisotropy;
591 }
592
593 void QGL_sharedContextCreated(OpenGLBinding& table)
594 {
595   QGL_InitVersion();
596
597   table.major_version = g_qglMajorVersion;
598   table.minor_version = g_qglMinorVersion;
599
600   table.m_glAccum                     = glAccum;
601   table.m_glAlphaFunc                 = glAlphaFunc;
602   table.m_glAreTexturesResident       = glAreTexturesResident;
603   table.m_glArrayElement              = glArrayElement;
604   table.m_glBegin                     = glBegin;
605   table.m_glBindTexture               = glBindTexture;
606   table.m_glBitmap                    = glBitmap;
607   table.m_glBlendFunc                 = glBlendFunc;
608   table.m_glCallList                  = glCallList;
609   table.m_glCallLists                 = glCallLists;
610   table.m_glClear                     = glClear;
611   table.m_glClearAccum                = glClearAccum;
612   table.m_glClearColor                = glClearColor;
613   table.m_glClearDepth                = glClearDepth;
614   table.m_glClearIndex                = glClearIndex;
615   table.m_glClearStencil              = glClearStencil;
616   table.m_glClipPlane                 = glClipPlane;
617   table.m_glColor3b                   = glColor3b;
618   table.m_glColor3bv                  = glColor3bv;
619   table.m_glColor3d                   = glColor3d;
620   table.m_glColor3dv                  = glColor3dv;
621   table.m_glColor3f                   = glColor3f;
622   table.m_glColor3fv                  = glColor3fv;
623   table.m_glColor3i                   = glColor3i;
624   table.m_glColor3iv                  = glColor3iv;
625   table.m_glColor3s                   = glColor3s;
626   table.m_glColor3sv                  = glColor3sv;
627   table.m_glColor3ub                  = glColor3ub;
628   table.m_glColor3ubv                 = glColor3ubv;
629   table.m_glColor3ui                  = glColor3ui;
630   table.m_glColor3uiv                 = glColor3uiv;
631   table.m_glColor3us                  = glColor3us;
632   table.m_glColor3usv                 = glColor3usv;
633   table.m_glColor4b                   = glColor4b;
634   table.m_glColor4bv                  = glColor4bv;
635   table.m_glColor4d                   = glColor4d;
636   table.m_glColor4dv                  = glColor4dv;
637   table.m_glColor4f                   = glColor4f;
638   table.m_glColor4fv                  = glColor4fv;
639   table.m_glColor4i                   = glColor4i;
640   table.m_glColor4iv                  = glColor4iv;
641   table.m_glColor4s                   = glColor4s;
642   table.m_glColor4sv                  = glColor4sv;
643   table.m_glColor4ub                  = glColor4ub;
644   table.m_glColor4ubv                 = glColor4ubv;
645   table.m_glColor4ui                  = glColor4ui;
646   table.m_glColor4uiv                 = glColor4uiv;
647   table.m_glColor4us                  = glColor4us;
648   table.m_glColor4usv                 = glColor4usv;
649   table.m_glColorMask                 = glColorMask;
650   table.m_glColorMaterial             = glColorMaterial;
651   table.m_glColorPointer              = glColorPointer;
652   table.m_glCopyPixels                = glCopyPixels;
653   table.m_glCopyTexImage1D            = glCopyTexImage1D;
654   table.m_glCopyTexImage2D            = glCopyTexImage2D;
655   table.m_glCopyTexSubImage1D         = glCopyTexSubImage1D;
656   table.m_glCopyTexSubImage2D         = glCopyTexSubImage2D;
657   table.m_glCullFace                  = glCullFace;
658   table.m_glDeleteLists               = glDeleteLists;
659   table.m_glDeleteTextures            = glDeleteTextures;
660   table.m_glDepthFunc                 = glDepthFunc;
661   table.m_glDepthMask                 = glDepthMask;
662   table.m_glDepthRange                = glDepthRange;
663   table.m_glDisable                   = glDisable;
664   table.m_glDisableClientState        = glDisableClientState;
665   table.m_glDrawArrays                = glDrawArrays;
666   table.m_glDrawBuffer                = glDrawBuffer;
667   table.m_glDrawElements              = glDrawElements;
668   table.m_glDrawPixels                = glDrawPixels;
669   table.m_glEdgeFlag                  = glEdgeFlag;
670   table.m_glEdgeFlagPointer           = glEdgeFlagPointer;
671   table.m_glEdgeFlagv                 = glEdgeFlagv;
672   table.m_glEnable                    = glEnable;
673   table.m_glEnableClientState         = glEnableClientState;
674   table.m_glEnd                       = glEnd;
675   table.m_glEndList                   = glEndList;
676   table.m_glEvalCoord1d               = glEvalCoord1d;
677   table.m_glEvalCoord1dv              = glEvalCoord1dv;
678   table.m_glEvalCoord1f               = glEvalCoord1f;
679   table.m_glEvalCoord1fv              = glEvalCoord1fv;
680   table.m_glEvalCoord2d               = glEvalCoord2d;
681   table.m_glEvalCoord2dv              = glEvalCoord2dv;
682   table.m_glEvalCoord2f               = glEvalCoord2f;
683   table.m_glEvalCoord2fv              = glEvalCoord2fv;
684   table.m_glEvalMesh1                 = glEvalMesh1;
685   table.m_glEvalMesh2                 = glEvalMesh2;
686   table.m_glEvalPoint1                = glEvalPoint1;
687   table.m_glEvalPoint2                = glEvalPoint2;
688   table.m_glFeedbackBuffer            = glFeedbackBuffer;
689   table.m_glFinish                    = glFinish;
690   table.m_glFlush                     = glFlush;
691   table.m_glFogf                      = glFogf;
692   table.m_glFogfv                     = glFogfv;
693   table.m_glFogi                      = glFogi;
694   table.m_glFogiv                     = glFogiv;
695   table.m_glFrontFace                 = glFrontFace;
696   table.m_glFrustum                   = glFrustum;
697   table.m_glGenLists                  = glGenLists;
698   table.m_glGenTextures               = glGenTextures;
699   table.m_glGetBooleanv               = glGetBooleanv;
700   table.m_glGetClipPlane              = glGetClipPlane;
701   table.m_glGetDoublev                = glGetDoublev;
702   table.m_glGetError                  = glGetError;
703   table.m_glGetFloatv                 = glGetFloatv;
704   table.m_glGetIntegerv               = glGetIntegerv;
705   table.m_glGetLightfv                = glGetLightfv;
706   table.m_glGetLightiv                = glGetLightiv;
707   table.m_glGetMapdv                  = glGetMapdv;
708   table.m_glGetMapfv                  = glGetMapfv;
709   table.m_glGetMapiv                  = glGetMapiv;
710   table.m_glGetMaterialfv             = glGetMaterialfv;
711   table.m_glGetMaterialiv             = glGetMaterialiv;
712   table.m_glGetPixelMapfv             = glGetPixelMapfv;
713   table.m_glGetPixelMapuiv            = glGetPixelMapuiv;
714   table.m_glGetPixelMapusv            = glGetPixelMapusv;
715   table.m_glGetPointerv               = glGetPointerv;
716   table.m_glGetPolygonStipple         = glGetPolygonStipple;
717   table.m_glGetString                 = glGetString;
718   table.m_glGetTexEnvfv               = glGetTexEnvfv;
719   table.m_glGetTexEnviv               = glGetTexEnviv;
720   table.m_glGetTexGendv               = glGetTexGendv;
721   table.m_glGetTexGenfv               = glGetTexGenfv;
722   table.m_glGetTexGeniv               = glGetTexGeniv;
723   table.m_glGetTexImage               = glGetTexImage;
724   table.m_glGetTexLevelParameterfv    = glGetTexLevelParameterfv;
725   table.m_glGetTexLevelParameteriv    = glGetTexLevelParameteriv;
726   table.m_glGetTexParameterfv         = glGetTexParameterfv;
727   table.m_glGetTexParameteriv         = glGetTexParameteriv;
728   table.m_glHint                      = glHint;
729   table.m_glIndexMask                 = glIndexMask;
730   table.m_glIndexPointer              = glIndexPointer;
731   table.m_glIndexd                    = glIndexd;
732   table.m_glIndexdv                   = glIndexdv;
733   table.m_glIndexf                    = glIndexf;
734   table.m_glIndexfv                   = glIndexfv;
735   table.m_glIndexi                    = glIndexi;
736   table.m_glIndexiv                   = glIndexiv;
737   table.m_glIndexs                    = glIndexs;
738   table.m_glIndexsv                   = glIndexsv;
739   table.m_glIndexub                   = glIndexub;
740   table.m_glIndexubv                  = glIndexubv;
741   table.m_glInitNames                 = glInitNames;
742   table.m_glInterleavedArrays         = glInterleavedArrays;
743   table.m_glIsEnabled                 = glIsEnabled;
744   table.m_glIsList                    = glIsList;
745   table.m_glIsTexture                 = glIsTexture;
746   table.m_glLightModelf               = glLightModelf;
747   table.m_glLightModelfv              = glLightModelfv;
748   table.m_glLightModeli               = glLightModeli;
749   table.m_glLightModeliv              = glLightModeliv;
750   table.m_glLightf                    = glLightf;
751   table.m_glLightfv                   = glLightfv;
752   table.m_glLighti                    = glLighti;
753   table.m_glLightiv                   = glLightiv;
754   table.m_glLineStipple               = glLineStipple;
755   table.m_glLineWidth                 = glLineWidth;
756   table.m_glListBase                  = glListBase;
757   table.m_glLoadIdentity              = glLoadIdentity;
758   table.m_glLoadMatrixd               = glLoadMatrixd;
759   table.m_glLoadMatrixf               = glLoadMatrixf;
760   table.m_glLoadName                  = glLoadName;
761   table.m_glLogicOp                   = glLogicOp;
762   table.m_glMap1d                     = glMap1d;
763   table.m_glMap1f                     = glMap1f;
764   table.m_glMap2d                     = glMap2d;
765   table.m_glMap2f                     = glMap2f;
766   table.m_glMapGrid1d                 = glMapGrid1d;
767   table.m_glMapGrid1f                 = glMapGrid1f;
768   table.m_glMapGrid2d                 = glMapGrid2d;
769   table.m_glMapGrid2f                 = glMapGrid2f;
770   table.m_glMaterialf                 = glMaterialf;
771   table.m_glMaterialfv                = glMaterialfv;
772   table.m_glMateriali                 = glMateriali;
773   table.m_glMaterialiv                = glMaterialiv;
774   table.m_glMatrixMode                = glMatrixMode;
775   table.m_glMultMatrixd               = glMultMatrixd;
776   table.m_glMultMatrixf               = glMultMatrixf;
777   table.m_glNewList                   = glNewList;
778   table.m_glNormal3b                  = glNormal3b;
779   table.m_glNormal3bv                 = glNormal3bv;
780   table.m_glNormal3d                  = glNormal3d;
781   table.m_glNormal3dv                 = glNormal3dv;
782   table.m_glNormal3f                  = glNormal3f;
783   table.m_glNormal3fv                 = glNormal3fv;
784   table.m_glNormal3i                  = glNormal3i;
785   table.m_glNormal3iv                 = glNormal3iv;
786   table.m_glNormal3s                  = glNormal3s;
787   table.m_glNormal3sv                 = glNormal3sv;
788   table.m_glNormalPointer             = glNormalPointer;
789   table.m_glOrtho                     = glOrtho;
790   table.m_glPassThrough               = glPassThrough;
791   table.m_glPixelMapfv                = glPixelMapfv;
792   table.m_glPixelMapuiv               = glPixelMapuiv;
793   table.m_glPixelMapusv               = glPixelMapusv;
794   table.m_glPixelStoref               = glPixelStoref;
795   table.m_glPixelStorei               = glPixelStorei;
796   table.m_glPixelTransferf            = glPixelTransferf;
797   table.m_glPixelTransferi            = glPixelTransferi;
798   table.m_glPixelZoom                 = glPixelZoom;
799   table.m_glPointSize                 = glPointSize;
800   table.m_glPolygonMode               = glPolygonMode;
801   table.m_glPolygonOffset             = glPolygonOffset;
802   table.m_glPolygonStipple            = glPolygonStipple;
803   table.m_glPopAttrib                 = glPopAttrib;
804   table.m_glPopClientAttrib           = glPopClientAttrib;
805   table.m_glPopMatrix                 = glPopMatrix;
806   table.m_glPopName                   = glPopName;
807   table.m_glPrioritizeTextures        = glPrioritizeTextures;
808   table.m_glPushAttrib                = glPushAttrib;
809   table.m_glPushClientAttrib          = glPushClientAttrib;
810   table.m_glPushMatrix                = glPushMatrix;
811   table.m_glPushName                  = glPushName;
812   table.m_glRasterPos2d               = glRasterPos2d;
813   table.m_glRasterPos2dv              = glRasterPos2dv;
814   table.m_glRasterPos2f               = glRasterPos2f;
815   table.m_glRasterPos2fv              = glRasterPos2fv;
816   table.m_glRasterPos2i               = glRasterPos2i;
817   table.m_glRasterPos2iv              = glRasterPos2iv;
818   table.m_glRasterPos2s               = glRasterPos2s;
819   table.m_glRasterPos2sv              = glRasterPos2sv;
820   table.m_glRasterPos3d               = glRasterPos3d;
821   table.m_glRasterPos3dv              = glRasterPos3dv;
822   table.m_glRasterPos3f               = glRasterPos3f;
823   table.m_glRasterPos3fv              = glRasterPos3fv;
824   table.m_glRasterPos3i               = glRasterPos3i;
825   table.m_glRasterPos3iv              = glRasterPos3iv;
826   table.m_glRasterPos3s               = glRasterPos3s;
827   table.m_glRasterPos3sv              = glRasterPos3sv;
828   table.m_glRasterPos4d               = glRasterPos4d;
829   table.m_glRasterPos4dv              = glRasterPos4dv;
830   table.m_glRasterPos4f               = glRasterPos4f;
831   table.m_glRasterPos4fv              = glRasterPos4fv;
832   table.m_glRasterPos4i               = glRasterPos4i;
833   table.m_glRasterPos4iv              = glRasterPos4iv;
834   table.m_glRasterPos4s               = glRasterPos4s;
835   table.m_glRasterPos4sv              = glRasterPos4sv;
836   table.m_glReadBuffer                = glReadBuffer;
837   table.m_glReadPixels                = glReadPixels;
838   table.m_glRectd                     = glRectd;
839   table.m_glRectdv                    = glRectdv;
840   table.m_glRectf                     = glRectf;
841   table.m_glRectfv                    = glRectfv;
842   table.m_glRecti                     = glRecti;
843   table.m_glRectiv                    = glRectiv;
844   table.m_glRects                     = glRects;
845   table.m_glRectsv                    = glRectsv;
846   table.m_glRenderMode                = glRenderMode;
847   table.m_glRotated                   = glRotated;
848   table.m_glRotatef                   = glRotatef;
849   table.m_glScaled                    = glScaled;
850   table.m_glScalef                    = glScalef;
851   table.m_glScissor                   = glScissor;
852   table.m_glSelectBuffer              = glSelectBuffer;
853   table.m_glShadeModel                = glShadeModel;
854   table.m_glStencilFunc               = glStencilFunc;
855   table.m_glStencilMask               = glStencilMask;
856   table.m_glStencilOp                 = glStencilOp;
857   table.m_glTexCoord1d                = glTexCoord1d;
858   table.m_glTexCoord1dv               = glTexCoord1dv;
859   table.m_glTexCoord1f                = glTexCoord1f;
860   table.m_glTexCoord1fv               = glTexCoord1fv;
861   table.m_glTexCoord1i                = glTexCoord1i;
862   table.m_glTexCoord1iv               = glTexCoord1iv;
863   table.m_glTexCoord1s                = glTexCoord1s;
864   table.m_glTexCoord1sv               = glTexCoord1sv;
865   table.m_glTexCoord2d                = glTexCoord2d;
866   table.m_glTexCoord2dv               = glTexCoord2dv;
867   table.m_glTexCoord2f                = glTexCoord2f;
868   table.m_glTexCoord2fv               = glTexCoord2fv;
869   table.m_glTexCoord2i                = glTexCoord2i;
870   table.m_glTexCoord2iv               = glTexCoord2iv;
871   table.m_glTexCoord2s                = glTexCoord2s;
872   table.m_glTexCoord2sv               = glTexCoord2sv;
873   table.m_glTexCoord3d                = glTexCoord3d;
874   table.m_glTexCoord3dv               = glTexCoord3dv;
875   table.m_glTexCoord3f                = glTexCoord3f;
876   table.m_glTexCoord3fv               = glTexCoord3fv;
877   table.m_glTexCoord3i                = glTexCoord3i;
878   table.m_glTexCoord3iv               = glTexCoord3iv;
879   table.m_glTexCoord3s                = glTexCoord3s;
880   table.m_glTexCoord3sv               = glTexCoord3sv;
881   table.m_glTexCoord4d                = glTexCoord4d;
882   table.m_glTexCoord4dv               = glTexCoord4dv;
883   table.m_glTexCoord4f                = glTexCoord4f;
884   table.m_glTexCoord4fv               = glTexCoord4fv;
885   table.m_glTexCoord4i                = glTexCoord4i;
886   table.m_glTexCoord4iv               = glTexCoord4iv;
887   table.m_glTexCoord4s                = glTexCoord4s;
888   table.m_glTexCoord4sv               = glTexCoord4sv;
889   table.m_glTexCoordPointer           = glTexCoordPointer;
890   table.m_glTexEnvf                   = glTexEnvf;
891   table.m_glTexEnvfv                  = glTexEnvfv;
892   table.m_glTexEnvi                   = glTexEnvi;
893   table.m_glTexEnviv                  = glTexEnviv;
894   table.m_glTexGend                   = glTexGend;
895   table.m_glTexGendv                  = glTexGendv;
896   table.m_glTexGenf                   = glTexGenf;
897   table.m_glTexGenfv                  = glTexGenfv;
898   table.m_glTexGeni                   = glTexGeni;
899   table.m_glTexGeniv                  = glTexGeniv;
900   table.m_glTexImage1D                = glTexImage1D;
901   table.m_glTexImage2D                = glTexImage2D;
902   table.m_glTexParameterf             = glTexParameterf;
903   table.m_glTexParameterfv            = glTexParameterfv;
904   table.m_glTexParameteri             = glTexParameteri;
905   table.m_glTexParameteriv            = glTexParameteriv;
906   table.m_glTexSubImage1D             = glTexSubImage1D;
907   table.m_glTexSubImage2D             = glTexSubImage2D;
908   table.m_glTranslated                = glTranslated;
909   table.m_glTranslatef                = glTranslatef;
910   table.m_glVertex2d                  = glVertex2d;
911   table.m_glVertex2dv                 = glVertex2dv;
912   table.m_glVertex2f                  = glVertex2f;
913   table.m_glVertex2fv                 = glVertex2fv;
914   table.m_glVertex2i                  = glVertex2i;
915   table.m_glVertex2iv                 = glVertex2iv;
916   table.m_glVertex2s                  = glVertex2s;
917   table.m_glVertex2sv                 = glVertex2sv;
918   table.m_glVertex3d                  = glVertex3d;
919   table.m_glVertex3dv                 = glVertex3dv;
920   table.m_glVertex3f                  = glVertex3f;
921   table.m_glVertex3fv                 = glVertex3fv;
922   table.m_glVertex3i                  = glVertex3i;
923   table.m_glVertex3iv                 = glVertex3iv;
924   table.m_glVertex3s                  = glVertex3s;
925   table.m_glVertex3sv                 = glVertex3sv;
926   table.m_glVertex4d                  = glVertex4d;
927   table.m_glVertex4dv                 = glVertex4dv;
928   table.m_glVertex4f                  = glVertex4f;
929   table.m_glVertex4fv                 = glVertex4fv;
930   table.m_glVertex4i                  = glVertex4i;
931   table.m_glVertex4iv                 = glVertex4iv;
932   table.m_glVertex4s                  = glVertex4s;
933   table.m_glVertex4sv                 = glVertex4sv;
934   table.m_glVertexPointer             = glVertexPointer;
935   table.m_glViewport                  = glViewport;
936
937   if(QGL_ExtensionSupported("GL_ARB_multitexture"))
938   {
939     table.support_ARB_multitexture =
940     QGL_constructExtensionFunc(table.m_glActiveTextureARB, "glActiveTextureARB")
941     && QGL_constructExtensionFunc(table.m_glClientActiveTextureARB, "glClientActiveTextureARB")
942     && QGL_constructExtensionFunc(table.m_glMultiTexCoord1dARB, "glMultiTexCoord1dARB")
943     && QGL_constructExtensionFunc(table.m_glMultiTexCoord1dvARB, "glMultiTexCoord1dvARB")
944     && QGL_constructExtensionFunc(table.m_glMultiTexCoord1fARB, "glMultiTexCoord1fARB")
945     && QGL_constructExtensionFunc(table.m_glMultiTexCoord1fvARB, "glMultiTexCoord1fvARB")
946     && QGL_constructExtensionFunc(table.m_glMultiTexCoord1iARB, "glMultiTexCoord1iARB")
947     && QGL_constructExtensionFunc(table.m_glMultiTexCoord1ivARB, "glMultiTexCoord1ivARB")
948     && QGL_constructExtensionFunc(table.m_glMultiTexCoord1sARB, "glMultiTexCoord1sARB")
949     && QGL_constructExtensionFunc(table.m_glMultiTexCoord1svARB, "glMultiTexCoord1svARB")
950     && QGL_constructExtensionFunc(table.m_glMultiTexCoord2dARB, "glMultiTexCoord2dARB")
951     && QGL_constructExtensionFunc(table.m_glMultiTexCoord2dvARB, "glMultiTexCoord2dvARB")
952     && QGL_constructExtensionFunc(table.m_glMultiTexCoord2fARB, "glMultiTexCoord2fARB")
953     && QGL_constructExtensionFunc(table.m_glMultiTexCoord2fvARB, "glMultiTexCoord2fvARB")
954     && QGL_constructExtensionFunc(table.m_glMultiTexCoord2iARB, "glMultiTexCoord2iARB")
955     && QGL_constructExtensionFunc(table.m_glMultiTexCoord2ivARB, "glMultiTexCoord2ivARB")
956     && QGL_constructExtensionFunc(table.m_glMultiTexCoord2sARB, "glMultiTexCoord2sARB")
957     && QGL_constructExtensionFunc(table.m_glMultiTexCoord2svARB, "glMultiTexCoord2svARB")
958     && QGL_constructExtensionFunc(table.m_glMultiTexCoord3dARB, "glMultiTexCoord3dARB")
959     && QGL_constructExtensionFunc(table.m_glMultiTexCoord3dvARB, "glMultiTexCoord3dvARB")
960     && QGL_constructExtensionFunc(table.m_glMultiTexCoord3fARB, "glMultiTexCoord3fARB")
961     && QGL_constructExtensionFunc(table.m_glMultiTexCoord3fvARB, "glMultiTexCoord3fvARB")
962     && QGL_constructExtensionFunc(table.m_glMultiTexCoord3iARB, "glMultiTexCoord3iARB")
963     && QGL_constructExtensionFunc(table.m_glMultiTexCoord3ivARB, "glMultiTexCoord3ivARB")
964     && QGL_constructExtensionFunc(table.m_glMultiTexCoord3sARB, "glMultiTexCoord3sARB")
965     && QGL_constructExtensionFunc(table.m_glMultiTexCoord3svARB, "glMultiTexCoord3svARB")
966     && QGL_constructExtensionFunc(table.m_glMultiTexCoord4dARB, "glMultiTexCoord4dARB")
967     && QGL_constructExtensionFunc(table.m_glMultiTexCoord4dvARB, "glMultiTexCoord4dvARB")
968     && QGL_constructExtensionFunc(table.m_glMultiTexCoord4fARB, "glMultiTexCoord4fARB")
969     && QGL_constructExtensionFunc(table.m_glMultiTexCoord4fvARB, "glMultiTexCoord4fvARB")
970     && QGL_constructExtensionFunc(table.m_glMultiTexCoord4iARB, "glMultiTexCoord4iARB")
971     && QGL_constructExtensionFunc(table.m_glMultiTexCoord4ivARB, "glMultiTexCoord4ivARB")
972     && QGL_constructExtensionFunc(table.m_glMultiTexCoord4sARB, "glMultiTexCoord4sARB")
973     && QGL_constructExtensionFunc(table.m_glMultiTexCoord4svARB, "glMultiTexCoord4svARB");
974     
975     if(!table.support_ARB_multitexture)
976     {
977       extension_not_implemented("GL_ARB_multitexture");
978     }
979   }
980   else
981   {
982     table.support_ARB_multitexture = false;
983   }
984
985   if(QGL_ExtensionSupported("GL_ARB_texture_compression"))
986   {
987     table.support_ARB_texture_compression =
988     QGL_constructExtensionFunc(table.m_glCompressedTexImage3DARB, "glCompressedTexImage3DARB")
989     && QGL_constructExtensionFunc(table.m_glCompressedTexImage2DARB, "glCompressedTexImage2DARB")
990     && QGL_constructExtensionFunc(table.m_glCompressedTexImage1DARB, "glCompressedTexImage1DARB")
991     && QGL_constructExtensionFunc(table.m_glCompressedTexSubImage3DARB, "glCompressedTexSubImage3DARB")
992     && QGL_constructExtensionFunc(table.m_glCompressedTexSubImage2DARB, "glCompressedTexSubImage2DARB")
993     && QGL_constructExtensionFunc(table.m_glCompressedTexSubImage1DARB, "glCompressedTexSubImage1DARB")
994     && QGL_constructExtensionFunc(table.m_glGetCompressedTexImageARB, "glGetCompressedTexImageARB");
995     
996     if(!table.support_ARB_texture_compression)
997     {
998       extension_not_implemented("GL_ARB_texture_compression");
999     }
1000   }
1001   else
1002   {
1003     table.support_ARB_texture_compression = false;
1004   }
1005
1006   table.support_EXT_texture_compression_s3tc = QGL_ExtensionSupported("GL_EXT_texture_compression_s3tc");
1007
1008   // GL 1.2
1009   if(table.major_version > 1 || table.minor_version >= 2)
1010   {
1011     table.support_GL_1_2 =
1012     QGL_constructExtensionFunc(table.m_glCopyTexSubImage3D, "glCopyTexSubImage3D")
1013     && QGL_constructExtensionFunc(table.m_glDrawRangeElements, "glDrawRangeElements")
1014     && QGL_constructExtensionFunc(table.m_glTexImage3D, "glTexImage3D")
1015     && QGL_constructExtensionFunc(table.m_glTexSubImage3D, "glTexSubImage3D");
1016
1017     if(!table.support_GL_1_2)
1018     {
1019       extension_not_implemented("GL_VERSION_1_2");
1020     }
1021   }
1022   else
1023   {
1024     table.support_GL_1_2 = false;
1025   }
1026
1027   // GL 1.3
1028   if(table.major_version > 1 || table.minor_version >= 3)
1029   {
1030     table.support_GL_1_3 =
1031     QGL_constructExtensionFunc(table.m_glActiveTexture, "glActiveTexture")
1032     && QGL_constructExtensionFunc(table.m_glClientActiveTexture, "glClientActiveTexture")
1033     && QGL_constructExtensionFunc(table.m_glCompressedTexImage1D, "glCompressedTexImage1D")
1034     && QGL_constructExtensionFunc(table.m_glCompressedTexImage2D, "glCompressedTexImage2D")
1035     && QGL_constructExtensionFunc(table.m_glCompressedTexImage3D, "glCompressedTexImage3D")
1036     && QGL_constructExtensionFunc(table.m_glCompressedTexSubImage1D, "glCompressedTexSubImage1D")
1037     && QGL_constructExtensionFunc(table.m_glCompressedTexSubImage2D, "glCompressedTexSubImage2D")
1038     && QGL_constructExtensionFunc(table.m_glCompressedTexSubImage3D, "glCompressedTexSubImage3D")
1039     && QGL_constructExtensionFunc(table.m_glGetCompressedTexImage, "glGetCompressedTexImage")
1040     && QGL_constructExtensionFunc(table.m_glLoadTransposeMatrixd, "glLoadTransposeMatrixd")
1041     && QGL_constructExtensionFunc(table.m_glLoadTransposeMatrixf, "glLoadTransposeMatrixf")
1042     && QGL_constructExtensionFunc(table.m_glMultTransposeMatrixd, "glMultTransposeMatrixd")
1043     && QGL_constructExtensionFunc(table.m_glMultTransposeMatrixf, "glMultTransposeMatrixf")
1044     && QGL_constructExtensionFunc(table.m_glMultiTexCoord1d, "glMultiTexCoord1d")
1045     && QGL_constructExtensionFunc(table.m_glMultiTexCoord1dv, "glMultiTexCoord1dv")
1046     && QGL_constructExtensionFunc(table.m_glMultiTexCoord1f, "glMultiTexCoord1f")
1047     && QGL_constructExtensionFunc(table.m_glMultiTexCoord1fv, "glMultiTexCoord1fv")
1048     && QGL_constructExtensionFunc(table.m_glMultiTexCoord1i, "glMultiTexCoord1i")
1049     && QGL_constructExtensionFunc(table.m_glMultiTexCoord1iv, "glMultiTexCoord1iv")
1050     && QGL_constructExtensionFunc(table.m_glMultiTexCoord1s, "glMultiTexCoord1s")
1051     && QGL_constructExtensionFunc(table.m_glMultiTexCoord1sv, "glMultiTexCoord1sv")
1052     && QGL_constructExtensionFunc(table.m_glMultiTexCoord2d, "glMultiTexCoord2d")
1053     && QGL_constructExtensionFunc(table.m_glMultiTexCoord2dv, "glMultiTexCoord2dv")
1054     && QGL_constructExtensionFunc(table.m_glMultiTexCoord2f, "glMultiTexCoord2f")
1055     && QGL_constructExtensionFunc(table.m_glMultiTexCoord2fv, "glMultiTexCoord2fv")
1056     && QGL_constructExtensionFunc(table.m_glMultiTexCoord2i, "glMultiTexCoord2i")
1057     && QGL_constructExtensionFunc(table.m_glMultiTexCoord2iv, "glMultiTexCoord2iv")
1058     && QGL_constructExtensionFunc(table.m_glMultiTexCoord2s, "glMultiTexCoord2s")
1059     && QGL_constructExtensionFunc(table.m_glMultiTexCoord2sv, "glMultiTexCoord2sv")
1060     && QGL_constructExtensionFunc(table.m_glMultiTexCoord3d, "glMultiTexCoord3d")
1061     && QGL_constructExtensionFunc(table.m_glMultiTexCoord3dv, "glMultiTexCoord3dv")
1062     && QGL_constructExtensionFunc(table.m_glMultiTexCoord3f, "glMultiTexCoord3f")
1063     && QGL_constructExtensionFunc(table.m_glMultiTexCoord3fv, "glMultiTexCoord3fv")
1064     && QGL_constructExtensionFunc(table.m_glMultiTexCoord3i, "glMultiTexCoord3i")
1065     && QGL_constructExtensionFunc(table.m_glMultiTexCoord3iv, "glMultiTexCoord3iv")
1066     && QGL_constructExtensionFunc(table.m_glMultiTexCoord3s, "glMultiTexCoord3s")
1067     && QGL_constructExtensionFunc(table.m_glMultiTexCoord3sv, "glMultiTexCoord3sv")
1068     && QGL_constructExtensionFunc(table.m_glMultiTexCoord4d, "glMultiTexCoord4d")
1069     && QGL_constructExtensionFunc(table.m_glMultiTexCoord4dv, "glMultiTexCoord4dv")
1070     && QGL_constructExtensionFunc(table.m_glMultiTexCoord4f, "glMultiTexCoord4f")
1071     && QGL_constructExtensionFunc(table.m_glMultiTexCoord4fv, "glMultiTexCoord4fv")
1072     && QGL_constructExtensionFunc(table.m_glMultiTexCoord4i, "glMultiTexCoord4i")
1073     && QGL_constructExtensionFunc(table.m_glMultiTexCoord4iv, "glMultiTexCoord4iv")
1074     && QGL_constructExtensionFunc(table.m_glMultiTexCoord4s, "glMultiTexCoord4s")
1075     && QGL_constructExtensionFunc(table.m_glMultiTexCoord4sv, "glMultiTexCoord4sv")
1076     && QGL_constructExtensionFunc(table.m_glSampleCoverage, "glSampleCoverage");
1077
1078     if(!table.support_GL_1_3)
1079     {
1080       extension_not_implemented("GL_VERSION_1_3");
1081     }
1082   }
1083   else
1084   {
1085     table.support_GL_1_3 = false;
1086   }
1087
1088   // GL 1.4
1089   if(table.major_version > 1 || table.minor_version >= 4)
1090   {
1091     table.support_GL_1_4 =
1092     QGL_constructExtensionFunc(table.m_glBlendColor, "glBlendColor")
1093     && QGL_constructExtensionFunc(table.m_glBlendEquation, "glBlendEquation")
1094     && QGL_constructExtensionFunc(table.m_glBlendFuncSeparate, "glBlendFuncSeparate")
1095     && QGL_constructExtensionFunc(table.m_glFogCoordPointer, "glFogCoordPointer")
1096     && QGL_constructExtensionFunc(table.m_glFogCoordd, "glFogCoordd")
1097     && QGL_constructExtensionFunc(table.m_glFogCoorddv, "glFogCoorddv")
1098     && QGL_constructExtensionFunc(table.m_glFogCoordf, "glFogCoordf")
1099     && QGL_constructExtensionFunc(table.m_glFogCoordfv, "glFogCoordfv")
1100     && QGL_constructExtensionFunc(table.m_glMultiDrawArrays, "glMultiDrawArrays")
1101     && QGL_constructExtensionFunc(table.m_glMultiDrawElements, "glMultiDrawElements")
1102     && QGL_constructExtensionFunc(table.m_glPointParameterf, "glPointParameterf")
1103     && QGL_constructExtensionFunc(table.m_glPointParameterfv, "glPointParameterfv")
1104     && QGL_constructExtensionFunc(table.m_glSecondaryColor3b, "glSecondaryColor3b")
1105     && QGL_constructExtensionFunc(table.m_glSecondaryColor3bv, "glSecondaryColor3bv")
1106     && QGL_constructExtensionFunc(table.m_glSecondaryColor3d, "glSecondaryColor3d")
1107     && QGL_constructExtensionFunc(table.m_glSecondaryColor3dv, "glSecondaryColor3dv")
1108     && QGL_constructExtensionFunc(table.m_glSecondaryColor3f, "glSecondaryColor3f")
1109     && QGL_constructExtensionFunc(table.m_glSecondaryColor3fv, "glSecondaryColor3fv")
1110     && QGL_constructExtensionFunc(table.m_glSecondaryColor3i, "glSecondaryColor3i")
1111     && QGL_constructExtensionFunc(table.m_glSecondaryColor3iv, "glSecondaryColor3iv")
1112     && QGL_constructExtensionFunc(table.m_glSecondaryColor3s, "glSecondaryColor3s")
1113     && QGL_constructExtensionFunc(table.m_glSecondaryColor3sv, "glSecondaryColor3sv")
1114     && QGL_constructExtensionFunc(table.m_glSecondaryColor3ub, "glSecondaryColor3ub")
1115     && QGL_constructExtensionFunc(table.m_glSecondaryColor3ubv, "glSecondaryColor3ubv")
1116     && QGL_constructExtensionFunc(table.m_glSecondaryColor3ui, "glSecondaryColor3ui")
1117     && QGL_constructExtensionFunc(table.m_glSecondaryColor3uiv, "glSecondaryColor3uiv")
1118     && QGL_constructExtensionFunc(table.m_glSecondaryColor3us, "glSecondaryColor3us")
1119     && QGL_constructExtensionFunc(table.m_glSecondaryColor3usv, "glSecondaryColor3usv")
1120     && QGL_constructExtensionFunc(table.m_glSecondaryColorPointer, "glSecondaryColorPointer")
1121     && QGL_constructExtensionFunc(table.m_glWindowPos2d, "glWindowPos2d")
1122     && QGL_constructExtensionFunc(table.m_glWindowPos2dv, "glWindowPos2dv")
1123     && QGL_constructExtensionFunc(table.m_glWindowPos2f, "glWindowPos2f")
1124     && QGL_constructExtensionFunc(table.m_glWindowPos2fv, "glWindowPos2fv")
1125     && QGL_constructExtensionFunc(table.m_glWindowPos2i, "glWindowPos2i")
1126     && QGL_constructExtensionFunc(table.m_glWindowPos2iv, "glWindowPos2iv")
1127     && QGL_constructExtensionFunc(table.m_glWindowPos2s, "glWindowPos2s")
1128     && QGL_constructExtensionFunc(table.m_glWindowPos2sv, "glWindowPos2sv")
1129     && QGL_constructExtensionFunc(table.m_glWindowPos3d, "glWindowPos3d")
1130     && QGL_constructExtensionFunc(table.m_glWindowPos3dv, "glWindowPos3dv")
1131     && QGL_constructExtensionFunc(table.m_glWindowPos3f, "glWindowPos3f")
1132     && QGL_constructExtensionFunc(table.m_glWindowPos3fv, "glWindowPos3fv")
1133     && QGL_constructExtensionFunc(table.m_glWindowPos3i, "glWindowPos3i")
1134     && QGL_constructExtensionFunc(table.m_glWindowPos3iv, "glWindowPos3iv")
1135     && QGL_constructExtensionFunc(table.m_glWindowPos3s, "glWindowPos3s")
1136     && QGL_constructExtensionFunc(table.m_glWindowPos3sv, "glWindowPos3sv");
1137
1138     if(!table.support_GL_1_4)
1139     {
1140       extension_not_implemented("GL_VERSION_1_4");
1141     }
1142   }
1143   else
1144   {
1145     table.support_GL_1_4 = false;
1146   }
1147   
1148   // GL 1.5
1149   if(table.major_version > 1 || table.minor_version >= 5)
1150   {
1151     table.support_GL_1_5 =
1152     QGL_constructExtensionFunc(table.m_glBeginQuery, "glBeginQuery")
1153     && QGL_constructExtensionFunc(table.m_glBindBuffer, "glBindBuffer")
1154     && QGL_constructExtensionFunc(table.m_glBufferData, "glBufferData")
1155     && QGL_constructExtensionFunc(table.m_glBufferSubData, "glBufferSubData")
1156     && QGL_constructExtensionFunc(table.m_glDeleteBuffers, "glDeleteBuffers")
1157     && QGL_constructExtensionFunc(table.m_glDeleteQueries, "glDeleteQueries")
1158     && QGL_constructExtensionFunc(table.m_glEndQuery, "glEndQuery")
1159     && QGL_constructExtensionFunc(table.m_glGenBuffers, "glGenBuffers")
1160     && QGL_constructExtensionFunc(table.m_glGenQueries, "glGenQueries")
1161     && QGL_constructExtensionFunc(table.m_glGetBufferParameteriv, "glGetBufferParameteriv")
1162     && QGL_constructExtensionFunc(table.m_glGetBufferPointerv, "glGetBufferPointerv")
1163     && QGL_constructExtensionFunc(table.m_glGetBufferSubData, "glGetBufferSubData")
1164     && QGL_constructExtensionFunc(table.m_glGetQueryObjectiv, "glGetQueryObjectiv")
1165     && QGL_constructExtensionFunc(table.m_glGetQueryObjectuiv, "glGetQueryObjectuiv")
1166     && QGL_constructExtensionFunc(table.m_glGetQueryiv, "glGetQueryiv")
1167     && QGL_constructExtensionFunc(table.m_glIsBuffer, "glIsBuffer")
1168     && QGL_constructExtensionFunc(table.m_glIsQuery, "glIsQuery")
1169     && QGL_constructExtensionFunc(table.m_glMapBuffer, "glMapBuffer")
1170     && QGL_constructExtensionFunc(table.m_glUnmapBuffer, "glUnmapBuffer");
1171
1172     if(!table.support_GL_1_5)
1173     {
1174       extension_not_implemented("GL_VERSION_1_5");
1175     }
1176   }
1177   else
1178   {
1179     table.support_GL_1_5 = false;
1180   }
1181
1182
1183   if(QGL_ExtensionSupported("GL_ARB_vertex_program"))
1184   {
1185     table.support_ARB_vertex_program = 
1186     QGL_constructExtensionFunc(table.m_glVertexAttrib1sARB, "glVertexAttrib1sARB")
1187     && QGL_constructExtensionFunc(table.m_glVertexAttrib1fARB, "glVertexAttrib1fARB")
1188     && QGL_constructExtensionFunc(table.m_glVertexAttrib1dARB, "glVertexAttrib1dARB")
1189     && QGL_constructExtensionFunc(table.m_glVertexAttrib2sARB, "glVertexAttrib2sARB")
1190     && QGL_constructExtensionFunc(table.m_glVertexAttrib2fARB, "glVertexAttrib2fARB")
1191     && QGL_constructExtensionFunc(table.m_glVertexAttrib2dARB, "glVertexAttrib2dARB")
1192     && QGL_constructExtensionFunc(table.m_glVertexAttrib3sARB, "glVertexAttrib3sARB")
1193     && QGL_constructExtensionFunc(table.m_glVertexAttrib3fARB, "glVertexAttrib3fARB")
1194     && QGL_constructExtensionFunc(table.m_glVertexAttrib3dARB, "glVertexAttrib3dARB")
1195     && QGL_constructExtensionFunc(table.m_glVertexAttrib4sARB, "glVertexAttrib4sARB")
1196     && QGL_constructExtensionFunc(table.m_glVertexAttrib4fARB, "glVertexAttrib4fARB")
1197     && QGL_constructExtensionFunc(table.m_glVertexAttrib4dARB, "glVertexAttrib4dARB")
1198     && QGL_constructExtensionFunc(table.m_glVertexAttrib4NubARB, "glVertexAttrib4NubARB")
1199     && QGL_constructExtensionFunc(table.m_glVertexAttrib1svARB, "glVertexAttrib1svARB")
1200     && QGL_constructExtensionFunc(table.m_glVertexAttrib1fvARB, "glVertexAttrib1fvARB")
1201     && QGL_constructExtensionFunc(table.m_glVertexAttrib1dvARB, "glVertexAttrib1dvARB")
1202     && QGL_constructExtensionFunc(table.m_glVertexAttrib2svARB, "glVertexAttrib2svARB")
1203     && QGL_constructExtensionFunc(table.m_glVertexAttrib2fvARB, "glVertexAttrib2fvARB")
1204     && QGL_constructExtensionFunc(table.m_glVertexAttrib2dvARB, "glVertexAttrib2dvARB")
1205     && QGL_constructExtensionFunc(table.m_glVertexAttrib3svARB, "glVertexAttrib3svARB")
1206     && QGL_constructExtensionFunc(table.m_glVertexAttrib3fvARB, "glVertexAttrib3fvARB")
1207     && QGL_constructExtensionFunc(table.m_glVertexAttrib3dvARB, "glVertexAttrib3dvARB")
1208     && QGL_constructExtensionFunc(table.m_glVertexAttrib4bvARB, "glVertexAttrib4bvARB")
1209     && QGL_constructExtensionFunc(table.m_glVertexAttrib4svARB, "glVertexAttrib4svARB")
1210     && QGL_constructExtensionFunc(table.m_glVertexAttrib4ivARB, "glVertexAttrib4ivARB")
1211     && QGL_constructExtensionFunc(table.m_glVertexAttrib4ubvARB, "glVertexAttrib4ubvARB")
1212     && QGL_constructExtensionFunc(table.m_glVertexAttrib4usvARB, "glVertexAttrib4usvARB")
1213     && QGL_constructExtensionFunc(table.m_glVertexAttrib4uivARB, "glVertexAttrib4uivARB")
1214     && QGL_constructExtensionFunc(table.m_glVertexAttrib4fvARB, "glVertexAttrib4fvARB")
1215     && QGL_constructExtensionFunc(table.m_glVertexAttrib4dvARB, "glVertexAttrib4dvARB")
1216     && QGL_constructExtensionFunc(table.m_glVertexAttrib4NbvARB, "glVertexAttrib4NbvARB")
1217     && QGL_constructExtensionFunc(table.m_glVertexAttrib4NsvARB, "glVertexAttrib4NsvARB")
1218     && QGL_constructExtensionFunc(table.m_glVertexAttrib4NivARB, "glVertexAttrib4NivARB")
1219     && QGL_constructExtensionFunc(table.m_glVertexAttrib4NubvARB, "glVertexAttrib4NubvARB")
1220     && QGL_constructExtensionFunc(table.m_glVertexAttrib4NusvARB, "glVertexAttrib4NusvARB")
1221     && QGL_constructExtensionFunc(table.m_glVertexAttrib4NuivARB, "glVertexAttrib4NuivARB")
1222     && QGL_constructExtensionFunc(table.m_glVertexAttribPointerARB, "glVertexAttribPointerARB")
1223     && QGL_constructExtensionFunc(table.m_glEnableVertexAttribArrayARB, "glEnableVertexAttribArrayARB")
1224     && QGL_constructExtensionFunc(table.m_glDisableVertexAttribArrayARB, "glDisableVertexAttribArrayARB")
1225     && QGL_constructExtensionFunc(table.m_glProgramStringARB, "glProgramStringARB")
1226     && QGL_constructExtensionFunc(table.m_glBindProgramARB, "glBindProgramARB")
1227     && QGL_constructExtensionFunc(table.m_glDeleteProgramsARB, "glDeleteProgramsARB")
1228     && QGL_constructExtensionFunc(table.m_glGenProgramsARB, "glGenProgramsARB")
1229     && QGL_constructExtensionFunc(table.m_glProgramEnvParameter4dARB, "glProgramEnvParameter4dARB")
1230     && QGL_constructExtensionFunc(table.m_glProgramEnvParameter4dvARB, "glProgramEnvParameter4dvARB")
1231     && QGL_constructExtensionFunc(table.m_glProgramEnvParameter4fARB, "glProgramEnvParameter4fARB")
1232     && QGL_constructExtensionFunc(table.m_glProgramEnvParameter4fvARB, "glProgramEnvParameter4fvARB")
1233     && QGL_constructExtensionFunc(table.m_glProgramLocalParameter4dARB, "glProgramLocalParameter4dARB")
1234     && QGL_constructExtensionFunc(table.m_glProgramLocalParameter4dvARB, "glProgramLocalParameter4dvARB")
1235     && QGL_constructExtensionFunc(table.m_glProgramLocalParameter4fARB, "glProgramLocalParameter4fARB")
1236     && QGL_constructExtensionFunc(table.m_glProgramLocalParameter4fvARB, "glProgramLocalParameter4fvARB")
1237     && QGL_constructExtensionFunc(table.m_glGetProgramEnvParameterdvARB, "glGetProgramEnvParameterdvARB")
1238     && QGL_constructExtensionFunc(table.m_glGetProgramEnvParameterfvARB, "glGetProgramEnvParameterfvARB")
1239     && QGL_constructExtensionFunc(table.m_glGetProgramLocalParameterdvARB, "glGetProgramLocalParameterdvARB")
1240     && QGL_constructExtensionFunc(table.m_glGetProgramLocalParameterfvARB, "glGetProgramLocalParameterfvARB")
1241     && QGL_constructExtensionFunc(table.m_glGetProgramivARB, "glGetProgramivARB")
1242     && QGL_constructExtensionFunc(table.m_glGetProgramStringARB, "glGetProgramStringARB")
1243     && QGL_constructExtensionFunc(table.m_glGetVertexAttribdvARB, "glGetVertexAttribdvARB")
1244     && QGL_constructExtensionFunc(table.m_glGetVertexAttribfvARB, "glGetVertexAttribfvARB")
1245     && QGL_constructExtensionFunc(table.m_glGetVertexAttribivARB, "glGetVertexAttribivARB")
1246     && QGL_constructExtensionFunc(table.m_glGetVertexAttribPointervARB, "glGetVertexAttribPointervARB")
1247     && QGL_constructExtensionFunc(table.m_glIsProgramARB, "glIsProgramARB");
1248
1249     if(!table.support_ARB_vertex_program)
1250     {
1251       extension_not_implemented("GL_ARB_vertex_program");
1252     }
1253   }
1254   else
1255   {
1256     table.support_ARB_vertex_program = false;
1257   }
1258
1259
1260   table.support_ARB_fragment_program = QGL_ExtensionSupported("GL_ARB_fragment_program");
1261
1262   if(QGL_ExtensionSupported("GL_ARB_shader_objects"))
1263   {
1264     table.support_ARB_shader_objects =
1265     QGL_constructExtensionFunc(table.m_glDeleteObjectARB, "glDeleteObjectARB")
1266     && QGL_constructExtensionFunc(table.m_glGetHandleARB, "glGetHandleARB")
1267     && QGL_constructExtensionFunc(table.m_glDetachObjectARB, "glDetachObjectARB")
1268     && QGL_constructExtensionFunc(table.m_glCreateShaderObjectARB, "glCreateShaderObjectARB")
1269     && QGL_constructExtensionFunc(table.m_glShaderSourceARB, "glShaderSourceARB")
1270     && QGL_constructExtensionFunc(table.m_glCompileShaderARB, "glCompileShaderARB")
1271     && QGL_constructExtensionFunc(table.m_glCreateProgramObjectARB, "glCreateProgramObjectARB")
1272     && QGL_constructExtensionFunc(table.m_glAttachObjectARB, "glAttachObjectARB")
1273     && QGL_constructExtensionFunc(table.m_glLinkProgramARB, "glLinkProgramARB")
1274     && QGL_constructExtensionFunc(table.m_glUseProgramObjectARB, "glUseProgramObjectARB")
1275     && QGL_constructExtensionFunc(table.m_glValidateProgramARB, "glValidateProgramARB")
1276     && QGL_constructExtensionFunc(table.m_glUniform1fARB, "glUniform1fARB")
1277     && QGL_constructExtensionFunc(table.m_glUniform2fARB, "glUniform2fARB")
1278     && QGL_constructExtensionFunc(table.m_glUniform3fARB, "glUniform3fARB")
1279     && QGL_constructExtensionFunc(table.m_glUniform4fARB, "glUniform4fARB")
1280     && QGL_constructExtensionFunc(table.m_glUniform1iARB, "glUniform1iARB")
1281     && QGL_constructExtensionFunc(table.m_glUniform2iARB, "glUniform2iARB")
1282     && QGL_constructExtensionFunc(table.m_glUniform3iARB, "glUniform3iARB")
1283     && QGL_constructExtensionFunc(table.m_glUniform4iARB, "glUniform4iARB")
1284     && QGL_constructExtensionFunc(table.m_glUniform1fvARB, "glUniform1fvARB")
1285     && QGL_constructExtensionFunc(table.m_glUniform2fvARB, "glUniform2fvARB")
1286     && QGL_constructExtensionFunc(table.m_glUniform3fvARB, "glUniform3fvARB")
1287     && QGL_constructExtensionFunc(table.m_glUniform4fvARB, "glUniform4fvARB")
1288     && QGL_constructExtensionFunc(table.m_glUniform1ivARB, "glUniform1ivARB")
1289     && QGL_constructExtensionFunc(table.m_glUniform2ivARB, "glUniform2ivARB")
1290     && QGL_constructExtensionFunc(table.m_glUniform3ivARB, "glUniform3ivARB")
1291     && QGL_constructExtensionFunc(table.m_glUniform4ivARB, "glUniform4ivARB")
1292     && QGL_constructExtensionFunc(table.m_glUniformMatrix2fvARB, "glUniformMatrix2fvARB")
1293     && QGL_constructExtensionFunc(table.m_glUniformMatrix3fvARB, "glUniformMatrix3fvARB")
1294     && QGL_constructExtensionFunc(table.m_glUniformMatrix4fvARB, "glUniformMatrix4fvARB")
1295     && QGL_constructExtensionFunc(table.m_glGetObjectParameterfvARB, "glGetObjectParameterfvARB")
1296     && QGL_constructExtensionFunc(table.m_glGetObjectParameterivARB, "glGetObjectParameterivARB")
1297     && QGL_constructExtensionFunc(table.m_glGetInfoLogARB, "glGetInfoLogARB")
1298     && QGL_constructExtensionFunc(table.m_glGetAttachedObjectsARB, "glGetAttachedObjectsARB")
1299     && QGL_constructExtensionFunc(table.m_glGetUniformLocationARB, "glGetUniformLocationARB")
1300     && QGL_constructExtensionFunc(table.m_glGetActiveUniformARB, "glGetActiveUniformARB")
1301     && QGL_constructExtensionFunc(table.m_glGetUniformfvARB, "glGetUniformfvARB")
1302     && QGL_constructExtensionFunc(table.m_glGetUniformivARB, "glGetUniformivARB")
1303     && QGL_constructExtensionFunc(table.m_glGetShaderSourceARB, "glGetShaderSourceARB");
1304
1305     if(!table.support_ARB_shader_objects)
1306     {
1307       extension_not_implemented("GL_ARB_shader_objects");
1308     }
1309   }
1310   else
1311   {
1312     table.support_ARB_shader_objects = false;
1313   }
1314
1315   if(QGL_ExtensionSupported("GL_ARB_vertex_shader"))
1316   {
1317     table.support_ARB_vertex_shader =
1318     QGL_constructExtensionFunc(table.m_glVertexAttrib1fARB, "glVertexAttrib1fARB")
1319     && QGL_constructExtensionFunc(table.m_glVertexAttrib1sARB, "glVertexAttrib1sARB")
1320     && QGL_constructExtensionFunc(table.m_glVertexAttrib1dARB, "glVertexAttrib1dARB")
1321     && QGL_constructExtensionFunc(table.m_glVertexAttrib2fARB, "glVertexAttrib2fARB")
1322     && QGL_constructExtensionFunc(table.m_glVertexAttrib2sARB, "glVertexAttrib2sARB")
1323     && QGL_constructExtensionFunc(table.m_glVertexAttrib2dARB, "glVertexAttrib2dARB")
1324     && QGL_constructExtensionFunc(table.m_glVertexAttrib3fARB, "glVertexAttrib3fARB")
1325     && QGL_constructExtensionFunc(table.m_glVertexAttrib3sARB, "glVertexAttrib3sARB")
1326     && QGL_constructExtensionFunc(table.m_glVertexAttrib3dARB, "glVertexAttrib3dARB")
1327     && QGL_constructExtensionFunc(table.m_glVertexAttrib4fARB, "glVertexAttrib4fARB")
1328     && QGL_constructExtensionFunc(table.m_glVertexAttrib4sARB, "glVertexAttrib4sARB")
1329     && QGL_constructExtensionFunc(table.m_glVertexAttrib4dARB, "glVertexAttrib4dARB")
1330     && QGL_constructExtensionFunc(table.m_glVertexAttrib4NubARB, "glVertexAttrib4NubARB")
1331     && QGL_constructExtensionFunc(table.m_glVertexAttrib1fvARB, "glVertexAttrib1fvARB")
1332     && QGL_constructExtensionFunc(table.m_glVertexAttrib1svARB, "glVertexAttrib1svARB")
1333     && QGL_constructExtensionFunc(table.m_glVertexAttrib1dvARB, "glVertexAttrib1dvARB")
1334     && QGL_constructExtensionFunc(table.m_glVertexAttrib2fvARB, "glVertexAttrib2fvARB")
1335     && QGL_constructExtensionFunc(table.m_glVertexAttrib2svARB, "glVertexAttrib2svARB")
1336     && QGL_constructExtensionFunc(table.m_glVertexAttrib2dvARB, "glVertexAttrib2dvARB")
1337     && QGL_constructExtensionFunc(table.m_glVertexAttrib3fvARB, "glVertexAttrib3fvARB")
1338     && QGL_constructExtensionFunc(table.m_glVertexAttrib3svARB, "glVertexAttrib3svARB")
1339     && QGL_constructExtensionFunc(table.m_glVertexAttrib3dvARB, "glVertexAttrib3dvARB")
1340     && QGL_constructExtensionFunc(table.m_glVertexAttrib4fvARB, "glVertexAttrib4fvARB")
1341     && QGL_constructExtensionFunc(table.m_glVertexAttrib4svARB, "glVertexAttrib4svARB")
1342     && QGL_constructExtensionFunc(table.m_glVertexAttrib4dvARB, "glVertexAttrib4dvARB")
1343     && QGL_constructExtensionFunc(table.m_glVertexAttrib4ivARB, "glVertexAttrib4ivARB")
1344     && QGL_constructExtensionFunc(table.m_glVertexAttrib4bvARB, "glVertexAttrib4bvARB")
1345     && QGL_constructExtensionFunc(table.m_glVertexAttrib4ubvARB, "glVertexAttrib4ubvARB")
1346     && QGL_constructExtensionFunc(table.m_glVertexAttrib4usvARB, "glVertexAttrib4usvARB")
1347     && QGL_constructExtensionFunc(table.m_glVertexAttrib4uivARB, "glVertexAttrib4uivARB")
1348     && QGL_constructExtensionFunc(table.m_glVertexAttrib4NbvARB, "glVertexAttrib4NbvARB")
1349     && QGL_constructExtensionFunc(table.m_glVertexAttrib4NsvARB, "glVertexAttrib4NsvARB")
1350     && QGL_constructExtensionFunc(table.m_glVertexAttrib4NivARB, "glVertexAttrib4NivARB")
1351     && QGL_constructExtensionFunc(table.m_glVertexAttrib4NubvARB, "glVertexAttrib4NubvARB")
1352     && QGL_constructExtensionFunc(table.m_glVertexAttrib4NusvARB, "glVertexAttrib4NusvARB")
1353     && QGL_constructExtensionFunc(table.m_glVertexAttrib4NuivARB, "glVertexAttrib4NuivARB")
1354     && QGL_constructExtensionFunc(table.m_glVertexAttribPointerARB, "glVertexAttribPointerARB")
1355     && QGL_constructExtensionFunc(table.m_glEnableVertexAttribArrayARB, "glEnableVertexAttribArrayARB")
1356     && QGL_constructExtensionFunc(table.m_glDisableVertexAttribArrayARB, "glDisableVertexAttribArrayARB")
1357     && QGL_constructExtensionFunc(table.m_glGetVertexAttribdvARB, "glGetVertexAttribdvARB")
1358     && QGL_constructExtensionFunc(table.m_glGetVertexAttribfvARB, "glGetVertexAttribfvARB")
1359     && QGL_constructExtensionFunc(table.m_glGetVertexAttribivARB, "glGetVertexAttribivARB")
1360     && QGL_constructExtensionFunc(table.m_glGetVertexAttribPointervARB, "glGetVertexAttribPointervARB")
1361     && QGL_constructExtensionFunc(table.m_glBindAttribLocationARB, "glBindAttribLocationARB")
1362     && QGL_constructExtensionFunc(table.m_glGetActiveAttribARB, "glGetActiveAttribARB")
1363     && QGL_constructExtensionFunc(table.m_glGetAttribLocationARB, "glGetAttribLocationARB");
1364
1365     if(!table.support_ARB_vertex_shader)
1366     {
1367       extension_not_implemented("GL_ARB_vertex_shader");
1368     }
1369   }
1370   else
1371   {
1372     table.support_ARB_vertex_shader = false;
1373   }
1374
1375   if(QGL_ExtensionSupported("GL_NV_vertex_program2"))
1376   {
1377     table.support_NV_vertex_program2 =
1378     QGL_constructExtensionFunc(table.m_glAreProgramsResidentNV, "glAreProgramsResidentNV")
1379     && QGL_constructExtensionFunc(table.m_glBindProgramNV, "glBindProgramNV")
1380     && QGL_constructExtensionFunc(table.m_glDeleteProgramsNV, "glDeleteProgramsNV")
1381     && QGL_constructExtensionFunc(table.m_glExecuteProgramNV, "glExecuteProgramNV")
1382     && QGL_constructExtensionFunc(table.m_glGenProgramsNV, "glGenProgramsNV")
1383     && QGL_constructExtensionFunc(table.m_glGetProgramParameterdvNV, "glGetProgramParameterdvNV")
1384     && QGL_constructExtensionFunc(table.m_glGetProgramParameterfvNV, "glGetProgramParameterfvNV")
1385     && QGL_constructExtensionFunc(table.m_glGetProgramivNV, "glGetProgramivNV")
1386     && QGL_constructExtensionFunc(table.m_glGetProgramStringNV, "glGetProgramStringNV")
1387     && QGL_constructExtensionFunc(table.m_glGetTrackMatrixivNV, "glGetTrackMatrixivNV")
1388     && QGL_constructExtensionFunc(table.m_glGetVertexAttribdvNV, "glGetVertexAttribdvNV")
1389     && QGL_constructExtensionFunc(table.m_glGetVertexAttribfvNV, "glGetVertexAttribfvNV")
1390     && QGL_constructExtensionFunc(table.m_glGetVertexAttribivNV, "glGetVertexAttribivNV")
1391     && QGL_constructExtensionFunc(table.m_glGetVertexAttribPointervNV, "glGetVertexAttribPointervNV")
1392     && QGL_constructExtensionFunc(table.m_glIsProgramNV, "glIsProgramNV")
1393     && QGL_constructExtensionFunc(table.m_glLoadProgramNV, "glLoadProgramNV")
1394     && QGL_constructExtensionFunc(table.m_glProgramParameter4fNV, "glProgramParameter4fNV")
1395     && QGL_constructExtensionFunc(table.m_glProgramParameter4fvNV, "glProgramParameter4fvNV")
1396     && QGL_constructExtensionFunc(table.m_glProgramParameters4fvNV, "glProgramParameters4fvNV")
1397     && QGL_constructExtensionFunc(table.m_glRequestResidentProgramsNV, "glRequestResidentProgramsNV")
1398     && QGL_constructExtensionFunc(table.m_glTrackMatrixNV, "glTrackMatrixNV")
1399     && QGL_constructExtensionFunc(table.m_glVertexAttribPointerNV, "glVertexAttribPointerNV")
1400     && QGL_constructExtensionFunc(table.m_glVertexAttrib1fNV, "glVertexAttrib1fNV")
1401     && QGL_constructExtensionFunc(table.m_glVertexAttrib1fvNV, "glVertexAttrib1fvNV")
1402     && QGL_constructExtensionFunc(table.m_glVertexAttrib2fNV, "glVertexAttrib2fNV")
1403     && QGL_constructExtensionFunc(table.m_glVertexAttrib2fvNV, "glVertexAttrib2fvNV")
1404     && QGL_constructExtensionFunc(table.m_glVertexAttrib3fNV, "glVertexAttrib3fNV")
1405     && QGL_constructExtensionFunc(table.m_glVertexAttrib3fvNV, "glVertexAttrib3fvNV")
1406     && QGL_constructExtensionFunc(table.m_glVertexAttrib4fNV, "glVertexAttrib4fNV")
1407     && QGL_constructExtensionFunc(table.m_glVertexAttrib4fvNV, "glVertexAttrib4fvNV")
1408     && QGL_constructExtensionFunc(table.m_glVertexAttribs1fvNV, "glVertexAttribs1fvNV")
1409     && QGL_constructExtensionFunc(table.m_glVertexAttribs2fvNV, "glVertexAttribs2fvNV")
1410     && QGL_constructExtensionFunc(table.m_glVertexAttribs3fvNV, "glVertexAttribs3fvNV")
1411     && QGL_constructExtensionFunc(table.m_glVertexAttribs4fvNV, "glVertexAttribs4fvNV");
1412
1413     if(!table.support_NV_vertex_program2)
1414     {
1415       extension_not_implemented("GL_NV_vertex_program2");
1416     }
1417   }
1418   else
1419   {
1420     table.support_NV_vertex_program2 = false;
1421     QGL_invalidateExtensionFunc(table.m_glAreProgramsResidentNV);
1422     QGL_invalidateExtensionFunc(table.m_glBindProgramNV);
1423     QGL_invalidateExtensionFunc(table.m_glDeleteProgramsNV);
1424     QGL_invalidateExtensionFunc(table.m_glExecuteProgramNV);
1425     QGL_invalidateExtensionFunc(table.m_glGenProgramsNV);
1426     QGL_invalidateExtensionFunc(table.m_glGetProgramParameterdvNV);
1427     QGL_invalidateExtensionFunc(table.m_glGetProgramParameterfvNV);
1428     QGL_invalidateExtensionFunc(table.m_glGetProgramivNV);
1429     QGL_invalidateExtensionFunc(table.m_glGetProgramStringNV);
1430     QGL_invalidateExtensionFunc(table.m_glGetTrackMatrixivNV);
1431     QGL_invalidateExtensionFunc(table.m_glGetVertexAttribdvNV);
1432     QGL_invalidateExtensionFunc(table.m_glGetVertexAttribfvNV);
1433     QGL_invalidateExtensionFunc(table.m_glGetVertexAttribivNV);
1434     QGL_invalidateExtensionFunc(table.m_glGetVertexAttribPointervNV);
1435     QGL_invalidateExtensionFunc(table.m_glIsProgramNV);
1436     QGL_invalidateExtensionFunc(table.m_glLoadProgramNV);
1437     QGL_invalidateExtensionFunc(table.m_glProgramParameter4fNV);
1438     QGL_invalidateExtensionFunc(table.m_glProgramParameter4fvNV);
1439     QGL_invalidateExtensionFunc(table.m_glProgramParameters4fvNV);
1440     QGL_invalidateExtensionFunc(table.m_glRequestResidentProgramsNV);
1441     QGL_invalidateExtensionFunc(table.m_glTrackMatrixNV);
1442     QGL_invalidateExtensionFunc(table.m_glVertexAttribPointerNV);
1443     QGL_invalidateExtensionFunc(table.m_glVertexAttrib1fNV);
1444     QGL_invalidateExtensionFunc(table.m_glVertexAttrib1fvNV);
1445     QGL_invalidateExtensionFunc(table.m_glVertexAttrib2fNV);
1446     QGL_invalidateExtensionFunc(table.m_glVertexAttrib2fvNV);
1447     QGL_invalidateExtensionFunc(table.m_glVertexAttrib3fNV);
1448     QGL_invalidateExtensionFunc(table.m_glVertexAttrib3fvNV);
1449     QGL_invalidateExtensionFunc(table.m_glVertexAttrib4fNV);
1450     QGL_invalidateExtensionFunc(table.m_glVertexAttrib4fvNV);
1451     QGL_invalidateExtensionFunc(table.m_glVertexAttribs1fvNV);
1452     QGL_invalidateExtensionFunc(table.m_glVertexAttribs2fvNV);
1453     QGL_invalidateExtensionFunc(table.m_glVertexAttribs3fvNV);
1454     QGL_invalidateExtensionFunc(table.m_glVertexAttribs4fvNV);
1455   }
1456
1457   if(QGL_ExtensionSupported("GL_NV_fragment_program"))
1458   {
1459     table.support_NV_fragment_program = 
1460     QGL_constructExtensionFunc(table.m_glProgramNamedParameter4fNV, "glProgramNamedParameter4fNV")
1461     && QGL_constructExtensionFunc(table.m_glProgramNamedParameter4fvNV, "glProgramNamedParameter4fvNV")
1462     && QGL_constructExtensionFunc(table.m_glGetProgramNamedParameterfvNV, "glGetProgramNamedParameterfvNV");
1463
1464     if(!table.support_NV_fragment_program)
1465     {
1466       extension_not_implemented("GL_NV_fragment_program");
1467     }
1468   }
1469   else
1470   {
1471     table.support_NV_fragment_program = false;
1472   }
1473
1474   table.support_ARB_fragment_shader = QGL_ExtensionSupported("GL_ARB_fragment_shader");
1475   table.support_ARB_shading_language_100 = QGL_ExtensionSupported("GL_ARB_shading_language_100");
1476
1477   if(QGL_ExtensionSupported("GL_EXT_texture_filter_anisotropic"))
1478   {
1479     glGetFloatv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &g_maxTextureAnisotropy);
1480     globalOutputStream() << "Anisotropic filtering possible (max " << g_maxTextureAnisotropy << "x)\n";
1481   }
1482   else
1483   {
1484     globalOutputStream() << "No Anisotropic filtering available\n";
1485         g_maxTextureAnisotropy = 0;
1486   }
1487 }
1488
1489 void QGL_sharedContextDestroyed(OpenGLBinding& table)
1490 {
1491   QGL_clear(table);
1492 }
1493
1494
1495 void QGL_assertNoErrors(const char *file, int line)
1496 {
1497   GLenum error = GlobalOpenGL().m_glGetError();
1498   while (error != GL_NO_ERROR)
1499   {
1500     const char* errorString = reinterpret_cast<const char*>(qgluErrorString(error));
1501     if (error == GL_OUT_OF_MEMORY)
1502     {
1503       ERROR_MESSAGE("OpenGL out of memory error at " << file << ":" << line << ": " << errorString);
1504     }
1505     else
1506     {
1507       ERROR_MESSAGE("OpenGL error at " << file << ":" << line << ": " << errorString);
1508     }
1509     error = GlobalOpenGL().m_glGetError();
1510   }
1511 }
1512
1513
1514 class QglAPI
1515 {
1516   OpenGLBinding m_qgl;
1517 public:
1518   typedef OpenGLBinding Type;
1519   STRING_CONSTANT(Name, "*");
1520
1521   QglAPI()
1522   {
1523     QGL_Init(m_qgl);
1524
1525     m_qgl.assertNoErrors = &QGL_assertNoErrors;
1526   }
1527   ~QglAPI()
1528   {
1529     QGL_Shutdown(m_qgl);
1530   }
1531   OpenGLBinding* getTable()
1532   {
1533     return &m_qgl;
1534   }
1535 };
1536
1537 #include "modulesystem/singletonmodule.h"
1538 #include "modulesystem/moduleregistry.h"
1539
1540 typedef SingletonModule<QglAPI> QglModule;
1541 typedef Static<QglModule> StaticQglModule;
1542 StaticRegisterModule staticRegisterQgl(StaticQglModule::instance());