summaryrefslogtreecommitdiffstats
path: root/src/gui/opengl/qopenglfunctions.h
blob: 4554291bbd91bda08df085bb914506a4481cdede (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QOPENGLFUNCTIONS_H
#define QOPENGLFUNCTIONS_H

#include <QtGui/qtguiglobal.h>

#ifndef QT_NO_OPENGL

#ifdef __GLEW_H__
#if defined(Q_CC_GNU)
#warning qopenglfunctions.h is not compatible with GLEW, GLEW defines will be undefined
#warning To use GLEW with Qt, do not include <qopengl.h> or <QOpenGLFunctions> after glew.h
#endif
#endif

#include <QtGui/qopengl.h>
#include <QtGui/qopenglcontext.h>

//#define Q_ENABLE_OPENGL_FUNCTIONS_DEBUG

#ifdef QT_OPENGL_ES
typedef double GLdouble;
#endif

#ifdef Q_ENABLE_OPENGL_FUNCTIONS_DEBUG
#include <stdio.h>
#define Q_OPENGL_FUNCTIONS_DEBUG \
    GLenum error = glGetError(); \
    if (error != GL_NO_ERROR) { \
        unsigned clamped = qMin(unsigned(error - GL_INVALID_ENUM), 4U); \
        const char *errors[] = { "GL_INVALID_ENUM", "GL_INVALID_VALUE", "GL_INVALID_OPERATION", "Unknown" }; \
        printf("GL error at %s:%d: %s\n", __FILE__, __LINE__, errors[clamped]); \
        int *value = 0; \
        *value = 0; \
    }
#else
#define Q_OPENGL_FUNCTIONS_DEBUG
#endif

QT_BEGIN_NAMESPACE

struct QOpenGLFunctionsPrivate;

// Undefine any macros from GLEW, qopenglextensions_p.h, etc that
// may interfere with the definition of QOpenGLFunctions.
#undef glBindTexture
#undef glBlendFunc
#undef glClear
#undef glClearColor
#undef glClearStencil
#undef glColorMask
#undef glCopyTexImage2D
#undef glCopyTexSubImage2D
#undef glCullFace
#undef glDeleteTextures
#undef glDepthFunc
#undef glDepthMask
#undef glDisable
#undef glDrawArrays
#undef glDrawElements
#undef glEnable
#undef glFinish
#undef glFlush
#undef glFrontFace
#undef glGenTextures
#undef glGetBooleanv
#undef glGetError
#undef glGetFloatv
#undef glGetIntegerv
#undef glGetString
#undef glGetTexParameterfv
#undef glGetTexParameteriv
#undef glHint
#undef glIsEnabled
#undef glIsTexture
#undef glLineWidth
#undef glPixelStorei
#undef glPolygonOffset
#undef glReadPixels
#undef glScissor
#undef glStencilFunc
#undef glStencilMask
#undef glStencilOp
#undef glTexImage2D
#undef glTexParameterf
#undef glTexParameterfv
#undef glTexParameteri
#undef glTexParameteriv
#undef glTexSubImage2D
#undef glViewport

#undef glActiveTexture
#undef glAttachShader
#undef glBindAttribLocation
#undef glBindBuffer
#undef glBindFramebuffer
#undef glBindRenderbuffer
#undef glBlendColor
#undef glBlendEquation
#undef glBlendEquationSeparate
#undef glBlendFuncSeparate
#undef glBufferData
#undef glBufferSubData
#undef glCheckFramebufferStatus
#undef glClearDepthf
#undef glCompileShader
#undef glCompressedTexImage2D
#undef glCompressedTexSubImage2D
#undef glCreateProgram
#undef glCreateShader
#undef glDeleteBuffers
#undef glDeleteFramebuffers
#undef glDeleteProgram
#undef glDeleteRenderbuffers
#undef glDeleteShader
#undef glDepthRangef
#undef glDetachShader
#undef glDisableVertexAttribArray
#undef glEnableVertexAttribArray
#undef glFramebufferRenderbuffer
#undef glFramebufferTexture2D
#undef glGenBuffers
#undef glGenerateMipmap
#undef glGenFramebuffers
#undef glGenRenderbuffers
#undef glGetActiveAttrib
#undef glGetActiveUniform
#undef glGetAttachedShaders
#undef glGetAttribLocation
#undef glGetBufferParameteriv
#undef glGetFramebufferAttachmentParameteriv
#undef glGetProgramiv
#undef glGetProgramInfoLog
#undef glGetRenderbufferParameteriv
#undef glGetShaderiv
#undef glGetShaderInfoLog
#undef glGetShaderPrecisionFormat
#undef glGetShaderSource
#undef glGetUniformfv
#undef glGetUniformiv
#undef glGetUniformLocation
#undef glGetVertexAttribfv
#undef glGetVertexAttribiv
#undef glGetVertexAttribPointerv
#undef glIsBuffer
#undef glIsFramebuffer
#undef glIsProgram
#undef glIsRenderbuffer
#undef glIsShader
#undef glLinkProgram
#undef glReleaseShaderCompiler
#undef glRenderbufferStorage
#undef glSampleCoverage
#undef glShaderBinary
#undef glShaderSource
#undef glStencilFuncSeparate
#undef glStencilMaskSeparate
#undef glStencilOpSeparate
#undef glUniform1f
#undef glUniform1fv
#undef glUniform1i
#undef glUniform1iv
#undef glUniform2f
#undef glUniform2fv
#undef glUniform2i
#undef glUniform2iv
#undef glUniform3f
#undef glUniform3fv
#undef glUniform3i
#undef glUniform3iv
#undef glUniform4f
#undef glUniform4fv
#undef glUniform4i
#undef glUniform4iv
#undef glUniformMatrix2fv
#undef glUniformMatrix3fv
#undef glUniformMatrix4fv
#undef glUseProgram
#undef glValidateProgram
#undef glVertexAttrib1f
#undef glVertexAttrib1fv
#undef glVertexAttrib2f
#undef glVertexAttrib2fv
#undef glVertexAttrib3f
#undef glVertexAttrib3fv
#undef glVertexAttrib4f
#undef glVertexAttrib4fv
#undef glVertexAttribPointer

#undef glTexLevelParameteriv

#if defined(Q_CLANG_QDOC)
#undef GLbitfield
typedef unsigned int GLbitfield;
#undef GLchar
typedef char GLchar;
#endif

class Q_GUI_EXPORT QOpenGLFunctions
{
public:
    QOpenGLFunctions();
    explicit QOpenGLFunctions(QOpenGLContext *context);
    ~QOpenGLFunctions() {}

    enum OpenGLFeature
    {
        Multitexture          = 0x0001,
        Shaders               = 0x0002,
        Buffers               = 0x0004,
        Framebuffers          = 0x0008,
        BlendColor            = 0x0010,
        BlendEquation         = 0x0020,
        BlendEquationSeparate = 0x0040,
        BlendFuncSeparate     = 0x0080,
        BlendSubtract         = 0x0100,
        CompressedTextures    = 0x0200,
        Multisample           = 0x0400,
        StencilSeparate       = 0x0800,
        NPOTTextures          = 0x1000,
        NPOTTextureRepeat     = 0x2000,
        FixedFunctionPipeline = 0x4000,
        TextureRGFormats      = 0x8000,
        MultipleRenderTargets = 0x10000,
        BlendEquationAdvanced = 0x20000,
    };
    Q_DECLARE_FLAGS(OpenGLFeatures, OpenGLFeature)

    QOpenGLFunctions::OpenGLFeatures openGLFeatures() const;
    bool hasOpenGLFeature(QOpenGLFunctions::OpenGLFeature feature) const;

    void initializeOpenGLFunctions();

#if QT_DEPRECATED_SINCE(5, 0)
    QT_DEPRECATED void initializeGLFunctions() { initializeOpenGLFunctions(); }
#endif

    // GLES2 + OpenGL1 common subset
    void glBindTexture(GLenum target, GLuint texture);
    void glBlendFunc(GLenum sfactor, GLenum dfactor);
    void glClear(GLbitfield mask);
    void glClearColor(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha);
    void glClearStencil(GLint s);
    void glColorMask(GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha);
    void glCopyTexImage2D(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border);
    void glCopyTexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height);
    void glCullFace(GLenum mode);
    void glDeleteTextures(GLsizei n, const GLuint* textures);
    void glDepthFunc(GLenum func);
    void glDepthMask(GLboolean flag);
    void glDisable(GLenum cap);
    void glDrawArrays(GLenum mode, GLint first, GLsizei count);
    void glDrawElements(GLenum mode, GLsizei count, GLenum type, const GLvoid* indices);
    void glEnable(GLenum cap);
    void glFinish();
    void glFlush();
    void glFrontFace(GLenum mode);
    void glGenTextures(GLsizei n, GLuint* textures);
    void glGetBooleanv(GLenum pname, GLboolean* params);
    GLenum glGetError();
    void glGetFloatv(GLenum pname, GLfloat* params);
    void glGetIntegerv(GLenum pname, GLint* params);
    const GLubyte *glGetString(GLenum name);
    void glGetTexParameterfv(GLenum target, GLenum pname, GLfloat* params);
    void glGetTexParameteriv(GLenum target, GLenum pname, GLint* params);
    void glHint(GLenum target, GLenum mode);
    GLboolean glIsEnabled(GLenum cap);
    GLboolean glIsTexture(GLuint texture);
    void glLineWidth(GLfloat width);
    void glPixelStorei(GLenum pname, GLint param);
    void glPolygonOffset(GLfloat factor, GLfloat units);
    void glReadPixels(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLvoid* pixels);
    void glScissor(GLint x, GLint y, GLsizei width, GLsizei height);
    void glStencilFunc(GLenum func, GLint ref, GLuint mask);
    void glStencilMask(GLuint mask);
    void glStencilOp(GLenum fail, GLenum zfail, GLenum zpass);
    void glTexImage2D(GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const GLvoid* pixels);
    void glTexParameterf(GLenum target, GLenum pname, GLfloat param);
    void glTexParameterfv(GLenum target, GLenum pname, const GLfloat* params);
    void glTexParameteri(GLenum target, GLenum pname, GLint param);
    void glTexParameteriv(GLenum target, GLenum pname, const GLint* params);
    void glTexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid* pixels);
    void glViewport(GLint x, GLint y, GLsizei width, GLsizei height);

    // GL(ES)2
    void glActiveTexture(GLenum texture);
    void glAttachShader(GLuint program, GLuint shader);
    void glBindAttribLocation(GLuint program, GLuint index, const char* name);
    void glBindBuffer(GLenum target, GLuint buffer);
    void glBindFramebuffer(GLenum target, GLuint framebuffer);
    void glBindRenderbuffer(GLenum target, GLuint renderbuffer);
    void glBlendColor(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha);
    void glBlendEquation(GLenum mode);
    void glBlendEquationSeparate(GLenum modeRGB, GLenum modeAlpha);
    void glBlendFuncSeparate(GLenum srcRGB, GLenum dstRGB, GLenum srcAlpha, GLenum dstAlpha);
    void glBufferData(GLenum target, qopengl_GLsizeiptr size, const void* data, GLenum usage);
    void glBufferSubData(GLenum target, qopengl_GLintptr offset, qopengl_GLsizeiptr size, const void* data);
    GLenum glCheckFramebufferStatus(GLenum target);
    void glClearDepthf(GLclampf depth);
    void glCompileShader(GLuint shader);
    void glCompressedTexImage2D(GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLint border, GLsizei imageSize, const void* data);
    void glCompressedTexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLsizei imageSize, const void* data);
    GLuint glCreateProgram();
    GLuint glCreateShader(GLenum type);
    void glDeleteBuffers(GLsizei n, const GLuint* buffers);
    void glDeleteFramebuffers(GLsizei n, const GLuint* framebuffers);
    void glDeleteProgram(GLuint program);
    void glDeleteRenderbuffers(GLsizei n, const GLuint* renderbuffers);
    void glDeleteShader(GLuint shader);
    void glDepthRangef(GLclampf zNear, GLclampf zFar);
    void glDetachShader(GLuint program, GLuint shader);
    void glDisableVertexAttribArray(GLuint index);
    void glEnableVertexAttribArray(GLuint index);
    void glFramebufferRenderbuffer(GLenum target, GLenum attachment, GLenum renderbuffertarget, GLuint renderbuffer);
    void glFramebufferTexture2D(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level);
    void glGenBuffers(GLsizei n, GLuint* buffers);
    void glGenerateMipmap(GLenum target);
    void glGenFramebuffers(GLsizei n, GLuint* framebuffers);
    void glGenRenderbuffers(GLsizei n, GLuint* renderbuffers);
    void glGetActiveAttrib(GLuint program, GLuint index, GLsizei bufsize, GLsizei* length, GLint* size, GLenum* type, char* name);
    void glGetActiveUniform(GLuint program, GLuint index, GLsizei bufsize, GLsizei* length, GLint* size, GLenum* type, char* name);
    void glGetAttachedShaders(GLuint program, GLsizei maxcount, GLsizei* count, GLuint* shaders);
    GLint glGetAttribLocation(GLuint program, const char* name);
    void glGetBufferParameteriv(GLenum target, GLenum pname, GLint* params);
    void glGetFramebufferAttachmentParameteriv(GLenum target, GLenum attachment, GLenum pname, GLint* params);
    void glGetProgramiv(GLuint program, GLenum pname, GLint* params);
    void glGetProgramInfoLog(GLuint program, GLsizei bufsize, GLsizei* length, char* infolog);
    void glGetRenderbufferParameteriv(GLenum target, GLenum pname, GLint* params);
    void glGetShaderiv(GLuint shader, GLenum pname, GLint* params);
    void glGetShaderInfoLog(GLuint shader, GLsizei bufsize, GLsizei* length, char* infolog);
    void glGetShaderPrecisionFormat(GLenum shadertype, GLenum precisiontype, GLint* range, GLint* precision);
    void glGetShaderSource(GLuint shader, GLsizei bufsize, GLsizei* length, char* source);
    void glGetUniformfv(GLuint program, GLint location, GLfloat* params);
    void glGetUniformiv(GLuint program, GLint location, GLint* params);
    GLint glGetUniformLocation(GLuint program, const char* name);
    void glGetVertexAttribfv(GLuint index, GLenum pname, GLfloat* params);
    void glGetVertexAttribiv(GLuint index, GLenum pname, GLint* params);
    void glGetVertexAttribPointerv(GLuint index, GLenum pname, void** pointer);
    GLboolean glIsBuffer(GLuint buffer);
    GLboolean glIsFramebuffer(GLuint framebuffer);
    GLboolean glIsProgram(GLuint program);
    GLboolean glIsRenderbuffer(GLuint renderbuffer);
    GLboolean glIsShader(GLuint shader);
    void glLinkProgram(GLuint program);
    void glReleaseShaderCompiler();
    void glRenderbufferStorage(GLenum target, GLenum internalformat, GLsizei width, GLsizei height);
    void glSampleCoverage(GLclampf value, GLboolean invert);
    void glShaderBinary(GLint n, const GLuint* shaders, GLenum binaryformat, const void* binary, GLint length);
    void glShaderSource(GLuint shader, GLsizei count, const char** string, const GLint* length);
    void glStencilFuncSeparate(GLenum face, GLenum func, GLint ref, GLuint mask);
    void glStencilMaskSeparate(GLenum face, GLuint mask);
    void glStencilOpSeparate(GLenum face, GLenum fail, GLenum zfail, GLenum zpass);
    void glUniform1f(GLint location, GLfloat x);
    void glUniform1fv(GLint location, GLsizei count, const GLfloat* v);
    void glUniform1i(GLint location, GLint x);
    void glUniform1iv(GLint location, GLsizei count, const GLint* v);
    void glUniform2f(GLint location, GLfloat x, GLfloat y);
    void glUniform2fv(GLint location, GLsizei count, const GLfloat* v);
    void glUniform2i(GLint location, GLint x, GLint y);
    void glUniform2iv(GLint location, GLsizei count, const GLint* v);
    void glUniform3f(GLint location, GLfloat x, GLfloat y, GLfloat z);
    void glUniform3fv(GLint location, GLsizei count, const GLfloat* v);
    void glUniform3i(GLint location, GLint x, GLint y, GLint z);
    void glUniform3iv(GLint location, GLsizei count, const GLint* v);
    void glUniform4f(GLint location, GLfloat x, GLfloat y, GLfloat z, GLfloat w);
    void glUniform4fv(GLint location, GLsizei count, const GLfloat* v);
    void glUniform4i(GLint location, GLint x, GLint y, GLint z, GLint w);
    void glUniform4iv(GLint location, GLsizei count, const GLint* v);
    void glUniformMatrix2fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat* value);
    void glUniformMatrix3fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat* value);
    void glUniformMatrix4fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat* value);
    void glUseProgram(GLuint program);
    void glValidateProgram(GLuint program);
    void glVertexAttrib1f(GLuint indx, GLfloat x);
    void glVertexAttrib1fv(GLuint indx, const GLfloat* values);
    void glVertexAttrib2f(GLuint indx, GLfloat x, GLfloat y);
    void glVertexAttrib2fv(GLuint indx, const GLfloat* values);
    void glVertexAttrib3f(GLuint indx, GLfloat x, GLfloat y, GLfloat z);
    void glVertexAttrib3fv(GLuint indx, const GLfloat* values);
    void glVertexAttrib4f(GLuint indx, GLfloat x, GLfloat y, GLfloat z, GLfloat w);
    void glVertexAttrib4fv(GLuint indx, const GLfloat* values);
    void glVertexAttribPointer(GLuint indx, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const void* ptr);

protected:
    QOpenGLFunctionsPrivate *d_ptr;
    static bool isInitialized(const QOpenGLFunctionsPrivate *d) { return d != nullptr; }
};

Q_DECLARE_OPERATORS_FOR_FLAGS(QOpenGLFunctions::OpenGLFeatures)

#define QT_OPENGL_DECLARE_FUNCTIONS(ret, name, args) \
    ret (QOPENGLF_APIENTRYP name)args;
#define QT_OPENGL_COUNT_FUNCTIONS(ret, name, args) +1

#define QT_OPENGL_DECLARE(FUNCTIONS) \
public: \
    struct Functions { \
        FUNCTIONS(QT_OPENGL_DECLARE_FUNCTIONS) \
    }; \
    union { \
        QFunctionPointer functions[FUNCTIONS(QT_OPENGL_COUNT_FUNCTIONS)]; \
        Functions f; \
    }; \
private: \
    void init(QOpenGLContext *context);

struct QOpenGLFunctionsPrivate
{
    QOpenGLFunctionsPrivate(QOpenGLContext *ctx);

#define QT_OPENGL_FUNCTIONS(F) \
    F(void, BindTexture, (GLenum target, GLuint texture)) \
    F(void, BlendFunc, (GLenum sfactor, GLenum dfactor)) \
    F(void, Clear, (GLbitfield mask)) \
    F(void, ClearColor, (GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha)) \
    F(void, ClearDepthf, (GLclampf depth)) \
    F(void, ClearStencil, (GLint s)) \
    F(void, ColorMask, (GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha)) \
    F(void, CopyTexImage2D, (GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border)) \
    F(void, CopyTexSubImage2D, (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height)) \
    F(void, CullFace, (GLenum mode)) \
    F(void, DeleteTextures, (GLsizei n, const GLuint* textures)) \
    F(void, DepthFunc, (GLenum func)) \
    F(void, DepthMask, (GLboolean flag)) \
    F(void, DepthRangef, (GLclampf nearVal, GLclampf farVal)) \
    F(void, Disable, (GLenum cap)) \
    F(void, DrawArrays, (GLenum mode, GLint first, GLsizei count)) \
    F(void, DrawElements, (GLenum mode, GLsizei count, GLenum type, const GLvoid* indices)) \
    F(void, Enable, (GLenum cap)) \
    F(void, Finish, ()) \
    F(void, Flush, ()) \
    F(void, FrontFace, (GLenum mode)) \
    F(void, GenTextures, (GLsizei n, GLuint* textures)) \
    F(void, GetBooleanv, (GLenum pname, GLboolean* params)) \
    F(GLenum, GetError, ()) \
    F(void, GetFloatv, (GLenum pname, GLfloat* params)) \
    F(void, GetIntegerv, (GLenum pname, GLint* params)) \
    F(const GLubyte *, GetString, (GLenum name)) \
    F(void, GetTexParameterfv, (GLenum target, GLenum pname, GLfloat* params)) \
    F(void, GetTexParameteriv, (GLenum target, GLenum pname, GLint* params)) \
    F(void, Hint, (GLenum target, GLenum mode)) \
    F(GLboolean, IsEnabled, (GLenum cap)) \
    F(GLboolean, IsTexture, (GLuint texture)) \
    F(void, LineWidth, (GLfloat width)) \
    F(void, PixelStorei, (GLenum pname, GLint param)) \
    F(void, PolygonOffset, (GLfloat factor, GLfloat units)) \
    F(void, ReadPixels, (GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLvoid* pixels)) \
    F(void, Scissor, (GLint x, GLint y, GLsizei width, GLsizei height)) \
    F(void, StencilFunc, (GLenum func, GLint ref, GLuint mask)) \
    F(void, StencilMask, (GLuint mask)) \
    F(void, StencilOp, (GLenum fail, GLenum zfail, GLenum zpass)) \
    F(void, TexImage2D, (GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const GLvoid* pixels)) \
    F(void, TexParameterf, (GLenum target, GLenum pname, GLfloat param)) \
    F(void, TexParameterfv, (GLenum target, GLenum pname, const GLfloat* params)) \
    F(void, TexParameteri, (GLenum target, GLenum pname, GLint param)) \
    F(void, TexParameteriv, (GLenum target, GLenum pname, const GLint* params)) \
    F(void, TexSubImage2D, (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid* pixels)) \
    F(void, Viewport, (GLint x, GLint y, GLsizei width, GLsizei height)) \
    F(void, ActiveTexture, (GLenum texture)) \
    F(void, AttachShader, (GLuint program, GLuint shader)) \
    F(void, BindAttribLocation, (GLuint program, GLuint index, const char* name)) \
    F(void, BindBuffer, (GLenum target, GLuint buffer)) \
    F(void, BindFramebuffer, (GLenum target, GLuint framebuffer)) \
    F(void, BindRenderbuffer, (GLenum target, GLuint renderbuffer)) \
    F(void, BlendColor, (GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha)) \
    F(void, BlendEquation, (GLenum mode)) \
    F(void, BlendEquationSeparate, (GLenum modeRGB, GLenum modeAlpha)) \
    F(void, BlendFuncSeparate, (GLenum srcRGB, GLenum dstRGB, GLenum srcAlpha, GLenum dstAlpha)) \
    F(void, BufferData, (GLenum target, qopengl_GLsizeiptr size, const void* data, GLenum usage)) \
    F(void, BufferSubData, (GLenum target, qopengl_GLintptr offset, qopengl_GLsizeiptr size, const void* data)) \
    F(GLenum, CheckFramebufferStatus, (GLenum target)) \
    F(void, CompileShader, (GLuint shader)) \
    F(void, CompressedTexImage2D, (GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLint border, GLsizei imageSize, const void* data)) \
    F(void, CompressedTexSubImage2D, (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLsizei imageSize, const void* data)) \
    F(GLuint, CreateProgram, ()) \
    F(GLuint, CreateShader, (GLenum type)) \
    F(void, DeleteBuffers, (GLsizei n, const GLuint* buffers)) \
    F(void, DeleteFramebuffers, (GLsizei n, const GLuint* framebuffers)) \
    F(void, DeleteProgram, (GLuint program)) \
    F(void, DeleteRenderbuffers, (GLsizei n, const GLuint* renderbuffers)) \
    F(void, DeleteShader, (GLuint shader)) \
    F(void, DetachShader, (GLuint program, GLuint shader)) \
    F(void, DisableVertexAttribArray, (GLuint index)) \
    F(void, EnableVertexAttribArray, (GLuint index)) \
    F(void, FramebufferRenderbuffer, (GLenum target, GLenum attachment, GLenum renderbuffertarget, GLuint renderbuffer)) \
    F(void, FramebufferTexture2D, (GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level)) \
    F(void, GenBuffers, (GLsizei n, GLuint* buffers)) \
    F(void, GenerateMipmap, (GLenum target)) \
    F(void, GenFramebuffers, (GLsizei n, GLuint* framebuffers)) \
    F(void, GenRenderbuffers, (GLsizei n, GLuint* renderbuffers)) \
    F(void, GetActiveAttrib, (GLuint program, GLuint index, GLsizei bufsize, GLsizei* length, GLint* size, GLenum* type, char* name)) \
    F(void, GetActiveUniform, (GLuint program, GLuint index, GLsizei bufsize, GLsizei* length, GLint* size, GLenum* type, char* name)) \
    F(void, GetAttachedShaders, (GLuint program, GLsizei maxcount, GLsizei* count, GLuint* shaders)) \
    F(GLint, GetAttribLocation, (GLuint program, const char* name)) \
    F(void, GetBufferParameteriv, (GLenum target, GLenum pname, GLint* params)) \
    F(void, GetFramebufferAttachmentParameteriv, (GLenum target, GLenum attachment, GLenum pname, GLint* params)) \
    F(void, GetProgramiv, (GLuint program, GLenum pname, GLint* params)) \
    F(void, GetProgramInfoLog, (GLuint program, GLsizei bufsize, GLsizei* length, char* infolog)) \
    F(void, GetRenderbufferParameteriv, (GLenum target, GLenum pname, GLint* params)) \
    F(void, GetShaderiv, (GLuint shader, GLenum pname, GLint* params)) \
    F(void, GetShaderInfoLog, (GLuint shader, GLsizei bufsize, GLsizei* length, char* infolog)) \
    F(void, GetShaderPrecisionFormat, (GLenum shadertype, GLenum precisiontype, GLint* range, GLint* precision)) \
    F(void, GetShaderSource, (GLuint shader, GLsizei bufsize, GLsizei* length, char* source)) \
    F(void, GetUniformfv, (GLuint program, GLint location, GLfloat* params)) \
    F(void, GetUniformiv, (GLuint program, GLint location, GLint* params)) \
    F(GLint, GetUniformLocation, (GLuint program, const char* name)) \
    F(void, GetVertexAttribfv, (GLuint index, GLenum pname, GLfloat* params)) \
    F(void, GetVertexAttribiv, (GLuint index, GLenum pname, GLint* params)) \
    F(void, GetVertexAttribPointerv, (GLuint index, GLenum pname, void** pointer)) \
    F(GLboolean, IsBuffer, (GLuint buffer)) \
    F(GLboolean, IsFramebuffer, (GLuint framebuffer)) \
    F(GLboolean, IsProgram, (GLuint program)) \
    F(GLboolean, IsRenderbuffer, (GLuint renderbuffer)) \
    F(GLboolean, IsShader, (GLuint shader)) \
    F(void, LinkProgram, (GLuint program)) \
    F(void, ReleaseShaderCompiler, ()) \
    F(void, RenderbufferStorage, (GLenum target, GLenum internalformat, GLsizei width, GLsizei height)) \
    F(void, SampleCoverage, (GLclampf value, GLboolean invert)) \
    F(void, ShaderBinary, (GLint n, const GLuint* shaders, GLenum binaryformat, const void* binary, GLint length)) \
    F(void, ShaderSource, (GLuint shader, GLsizei count, const char** string, const GLint* length)) \
    F(void, StencilFuncSeparate, (GLenum face, GLenum func, GLint ref, GLuint mask)) \
    F(void, StencilMaskSeparate, (GLenum face, GLuint mask)) \
    F(void, StencilOpSeparate, (GLenum face, GLenum fail, GLenum zfail, GLenum zpass)) \
    F(void, Uniform1f, (GLint location, GLfloat x)) \
    F(void, Uniform1fv, (GLint location, GLsizei count, const GLfloat* v)) \
    F(void, Uniform1i, (GLint location, GLint x)) \
    F(void, Uniform1iv, (GLint location, GLsizei count, const GLint* v)) \
    F(void, Uniform2f, (GLint location, GLfloat x, GLfloat y)) \
    F(void, Uniform2fv, (GLint location, GLsizei count, const GLfloat* v)) \
    F(void, Uniform2i, (GLint location, GLint x, GLint y)) \
    F(void, Uniform2iv, (GLint location, GLsizei count, const GLint* v)) \
    F(void, Uniform3f, (GLint location, GLfloat x, GLfloat y, GLfloat z)) \
    F(void, Uniform3fv, (GLint location, GLsizei count, const GLfloat* v)) \
    F(void, Uniform3i, (GLint location, GLint x, GLint y, GLint z)) \
    F(void, Uniform3iv, (GLint location, GLsizei count, const GLint* v)) \
    F(void, Uniform4f, (GLint location, GLfloat x, GLfloat y, GLfloat z, GLfloat w)) \
    F(void, Uniform4fv, (GLint location, GLsizei count, const GLfloat* v)) \
    F(void, Uniform4i, (GLint location, GLint x, GLint y, GLint z, GLint w)) \
    F(void, Uniform4iv, (GLint location, GLsizei count, const GLint* v)) \
    F(void, UniformMatrix2fv, (GLint location, GLsizei count, GLboolean transpose, const GLfloat* value)) \
    F(void, UniformMatrix3fv, (GLint location, GLsizei count, GLboolean transpose, const GLfloat* value)) \
    F(void, UniformMatrix4fv, (GLint location, GLsizei count, GLboolean transpose, const GLfloat* value)) \
    F(void, UseProgram, (GLuint program)) \
    F(void, ValidateProgram, (GLuint program)) \
    F(void, VertexAttrib1f, (GLuint indx, GLfloat x)) \
    F(void, VertexAttrib1fv, (GLuint indx, const GLfloat* values)) \
    F(void, VertexAttrib2f, (GLuint indx, GLfloat x, GLfloat y)) \
    F(void, VertexAttrib2fv, (GLuint indx, const GLfloat* values)) \
    F(void, VertexAttrib3f, (GLuint indx, GLfloat x, GLfloat y, GLfloat z)) \
    F(void, VertexAttrib3fv, (GLuint indx, const GLfloat* values)) \
    F(void, VertexAttrib4f, (GLuint indx, GLfloat x, GLfloat y, GLfloat z, GLfloat w)) \
    F(void, VertexAttrib4fv, (GLuint indx, const GLfloat* values)) \
    F(void, VertexAttribPointer, (GLuint indx, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const void* ptr)) \
    F(void, ClearDepth, (GLdouble depth)) \
    F(void, DepthRange, (GLdouble zNear, GLdouble zFar)) \

    QT_OPENGL_DECLARE(QT_OPENGL_FUNCTIONS)
};

// GLES2 + OpenGL1 common subset

inline void QOpenGLFunctions::glBindTexture(GLenum target, GLuint texture)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glBindTexture(target, texture);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.BindTexture(target, texture);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glBlendFunc(GLenum sfactor, GLenum dfactor)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glBlendFunc(sfactor, dfactor);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.BlendFunc(sfactor, dfactor);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glClear(GLbitfield mask)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glClear(mask);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.Clear(mask);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glClearColor(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glClearColor(red, green, blue, alpha);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.ClearColor(red, green, blue, alpha);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glClearStencil(GLint s)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glClearStencil(s);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.ClearStencil(s);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glColorMask(GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glColorMask(red, green, blue, alpha);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.ColorMask(red, green, blue, alpha);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glCopyTexImage2D(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glCopyTexImage2D(target, level, internalformat, x, y, width,height, border);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.CopyTexImage2D(target, level, internalformat, x, y, width,height, border);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glCopyTexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glCopyTexSubImage2D(target, level, xoffset, yoffset, x, y, width, height);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.CopyTexSubImage2D(target, level, xoffset, yoffset, x, y, width, height);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glCullFace(GLenum mode)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glCullFace(mode);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.CullFace(mode);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glDeleteTextures(GLsizei n, const GLuint* textures)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glDeleteTextures(n, textures);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.DeleteTextures(n, textures);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glDepthFunc(GLenum func)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glDepthFunc(func);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.DepthFunc(func);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glDepthMask(GLboolean flag)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glDepthMask(flag);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.DepthMask(flag);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glDisable(GLenum cap)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glDisable(cap);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.Disable(cap);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glDrawArrays(GLenum mode, GLint first, GLsizei count)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glDrawArrays(mode, first, count);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.DrawArrays(mode, first, count);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glDrawElements(GLenum mode, GLsizei count, GLenum type, const GLvoid* indices)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glDrawElements(mode, count, type, indices);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.DrawElements(mode, count, type, indices);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glEnable(GLenum cap)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glEnable(cap);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.Enable(cap);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glFinish()
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glFinish();
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.Finish();
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glFlush()
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glFlush();
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.Flush();
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glFrontFace(GLenum mode)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glFrontFace(mode);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.FrontFace(mode);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glGenTextures(GLsizei n, GLuint* textures)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glGenTextures(n, textures);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.GenTextures(n, textures);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glGetBooleanv(GLenum pname, GLboolean* params)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glGetBooleanv(pname, params);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.GetBooleanv(pname, params);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline GLenum QOpenGLFunctions::glGetError()
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    GLenum result = ::glGetError();
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    GLenum result = d_ptr->f.GetError();
#endif
    return result;
}

inline void QOpenGLFunctions::glGetFloatv(GLenum pname, GLfloat* params)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glGetFloatv(pname, params);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.GetFloatv(pname, params);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glGetIntegerv(GLenum pname, GLint* params)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glGetIntegerv(pname, params);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.GetIntegerv(pname, params);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline const GLubyte *QOpenGLFunctions::glGetString(GLenum name)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    const GLubyte *result = ::glGetString(name);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    const GLubyte *result = d_ptr->f.GetString(name);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
    return result;
}

inline void QOpenGLFunctions::glGetTexParameterfv(GLenum target, GLenum pname, GLfloat* params)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glGetTexParameterfv(target, pname, params);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.GetTexParameterfv(target, pname, params);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glGetTexParameteriv(GLenum target, GLenum pname, GLint* params)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glGetTexParameteriv(target, pname, params);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.GetTexParameteriv(target, pname, params);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glHint(GLenum target, GLenum mode)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glHint(target, mode);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.Hint(target, mode);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline GLboolean QOpenGLFunctions::glIsEnabled(GLenum cap)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    GLboolean result = ::glIsEnabled(cap);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    GLboolean result = d_ptr->f.IsEnabled(cap);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
    return result;
}

inline GLboolean QOpenGLFunctions::glIsTexture(GLuint texture)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    GLboolean result = ::glIsTexture(texture);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    GLboolean result = d_ptr->f.IsTexture(texture);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
    return result;
}

inline void QOpenGLFunctions::glLineWidth(GLfloat width)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glLineWidth(width);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.LineWidth(width);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glPixelStorei(GLenum pname, GLint param)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glPixelStorei(pname, param);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.PixelStorei(pname, param);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glPolygonOffset(GLfloat factor, GLfloat units)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glPolygonOffset(factor, units);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.PolygonOffset(factor, units);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glReadPixels(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLvoid* pixels)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glReadPixels(x, y, width, height, format, type, pixels);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.ReadPixels(x, y, width, height, format, type, pixels);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glScissor(GLint x, GLint y, GLsizei width, GLsizei height)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glScissor(x, y, width, height);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.Scissor(x, y, width, height);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glStencilFunc(GLenum func, GLint ref, GLuint mask)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glStencilFunc(func, ref, mask);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.StencilFunc(func, ref, mask);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glStencilMask(GLuint mask)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glStencilMask(mask);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.StencilMask(mask);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glStencilOp(GLenum fail, GLenum zfail, GLenum zpass)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glStencilOp(fail, zfail, zpass);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.StencilOp(fail, zfail, zpass);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glTexImage2D(GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const GLvoid* pixels)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glTexImage2D(target, level, internalformat, width,height, border, format, type, pixels);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.TexImage2D(target, level, internalformat, width,height, border, format, type, pixels);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glTexParameterf(GLenum target, GLenum pname, GLfloat param)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glTexParameterf(target, pname, param);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.TexParameterf(target, pname, param);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glTexParameterfv(GLenum target, GLenum pname, const GLfloat* params)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glTexParameterfv(target, pname, params);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.TexParameterfv(target, pname, params);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glTexParameteri(GLenum target, GLenum pname, GLint param)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glTexParameteri(target, pname, param);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.TexParameteri(target, pname, param);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glTexParameteriv(GLenum target, GLenum pname, const GLint* params)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glTexParameteriv(target, pname, params);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.TexParameteriv(target, pname, params);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glTexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid* pixels)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glTexSubImage2D(target, level, xoffset, yoffset, width, height, format, type, pixels);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.TexSubImage2D(target, level, xoffset, yoffset, width, height, format, type, pixels);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glViewport(GLint x, GLint y, GLsizei width, GLsizei height)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glViewport(x, y, width, height);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.Viewport(x, y, width, height);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

// GL(ES)2

inline void QOpenGLFunctions::glActiveTexture(GLenum texture)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glActiveTexture(texture);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.ActiveTexture(texture);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glAttachShader(GLuint program, GLuint shader)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glAttachShader(program, shader);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.AttachShader(program, shader);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glBindAttribLocation(GLuint program, GLuint index, const char* name)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glBindAttribLocation(program, index, name);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.BindAttribLocation(program, index, name);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glBindBuffer(GLenum target, GLuint buffer)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glBindBuffer(target, buffer);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.BindBuffer(target, buffer);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glBindFramebuffer(GLenum target, GLuint framebuffer)
{
    if (framebuffer == 0)
        framebuffer = QOpenGLContext::currentContext()->defaultFramebufferObject();
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glBindFramebuffer(target, framebuffer);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.BindFramebuffer(target, framebuffer);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glBindRenderbuffer(GLenum target, GLuint renderbuffer)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glBindRenderbuffer(target, renderbuffer);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.BindRenderbuffer(target, renderbuffer);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glBlendColor(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glBlendColor(red, green, blue, alpha);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.BlendColor(red, green, blue, alpha);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glBlendEquation(GLenum mode)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glBlendEquation(mode);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.BlendEquation(mode);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glBlendEquationSeparate(GLenum modeRGB, GLenum modeAlpha)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glBlendEquationSeparate(modeRGB, modeAlpha);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.BlendEquationSeparate(modeRGB, modeAlpha);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glBlendFuncSeparate(GLenum srcRGB, GLenum dstRGB, GLenum srcAlpha, GLenum dstAlpha)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glBlendFuncSeparate(srcRGB, dstRGB, srcAlpha, dstAlpha);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.BlendFuncSeparate(srcRGB, dstRGB, srcAlpha, dstAlpha);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glBufferData(GLenum target, qopengl_GLsizeiptr size, const void* data, GLenum usage)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glBufferData(target, size, data, usage);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.BufferData(target, size, data, usage);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glBufferSubData(GLenum target, qopengl_GLintptr offset, qopengl_GLsizeiptr size, const void* data)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glBufferSubData(target, offset, size, data);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.BufferSubData(target, offset, size, data);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline GLenum QOpenGLFunctions::glCheckFramebufferStatus(GLenum target)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    GLenum result = ::glCheckFramebufferStatus(target);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    GLenum result = d_ptr->f.CheckFramebufferStatus(target);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
    return result;
}

inline void QOpenGLFunctions::glClearDepthf(GLclampf depth)
{
#if defined(QT_OPENGL_ES) && defined(Q_OS_ANDROID)
    ::glClearDepthf(depth);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.ClearDepthf(depth);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glCompileShader(GLuint shader)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glCompileShader(shader);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.CompileShader(shader);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glCompressedTexImage2D(GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLint border, GLsizei imageSize, const void* data)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glCompressedTexImage2D(target, level, internalformat, width, height, border, imageSize, data);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.CompressedTexImage2D(target, level, internalformat, width, height, border, imageSize, data);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glCompressedTexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLsizei imageSize, const void* data)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glCompressedTexSubImage2D(target, level, xoffset, yoffset, width, height, format, imageSize, data);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.CompressedTexSubImage2D(target, level, xoffset, yoffset, width, height, format, imageSize, data);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline GLuint QOpenGLFunctions::glCreateProgram()
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    GLuint result = ::glCreateProgram();
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    GLuint result = d_ptr->f.CreateProgram();
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
    return result;
}

inline GLuint QOpenGLFunctions::glCreateShader(GLenum type)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    GLuint result = ::glCreateShader(type);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    GLuint result = d_ptr->f.CreateShader(type);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
    return result;
}

inline void QOpenGLFunctions::glDeleteBuffers(GLsizei n, const GLuint* buffers)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glDeleteBuffers(n, buffers);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.DeleteBuffers(n, buffers);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glDeleteFramebuffers(GLsizei n, const GLuint* framebuffers)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glDeleteFramebuffers(n, framebuffers);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.DeleteFramebuffers(n, framebuffers);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glDeleteProgram(GLuint program)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glDeleteProgram(program);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.DeleteProgram(program);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glDeleteRenderbuffers(GLsizei n, const GLuint* renderbuffers)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glDeleteRenderbuffers(n, renderbuffers);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.DeleteRenderbuffers(n, renderbuffers);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glDeleteShader(GLuint shader)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glDeleteShader(shader);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.DeleteShader(shader);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glDepthRangef(GLclampf zNear, GLclampf zFar)
{
#if defined(QT_OPENGL_ES) && defined(Q_OS_ANDROID)
    ::glDepthRangef(zNear, zFar);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.DepthRangef(zNear, zFar);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glDetachShader(GLuint program, GLuint shader)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glDetachShader(program, shader);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.DetachShader(program, shader);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glDisableVertexAttribArray(GLuint index)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glDisableVertexAttribArray(index);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.DisableVertexAttribArray(index);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glEnableVertexAttribArray(GLuint index)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glEnableVertexAttribArray(index);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.EnableVertexAttribArray(index);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glFramebufferRenderbuffer(GLenum target, GLenum attachment, GLenum renderbuffertarget, GLuint renderbuffer)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glFramebufferRenderbuffer(target, attachment, renderbuffertarget, renderbuffer);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.FramebufferRenderbuffer(target, attachment, renderbuffertarget, renderbuffer);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glFramebufferTexture2D(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glFramebufferTexture2D(target, attachment, textarget, texture, level);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.FramebufferTexture2D(target, attachment, textarget, texture, level);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glGenBuffers(GLsizei n, GLuint* buffers)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glGenBuffers(n, buffers);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.GenBuffers(n, buffers);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glGenerateMipmap(GLenum target)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glGenerateMipmap(target);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.GenerateMipmap(target);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glGenFramebuffers(GLsizei n, GLuint* framebuffers)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glGenFramebuffers(n, framebuffers);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.GenFramebuffers(n, framebuffers);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glGenRenderbuffers(GLsizei n, GLuint* renderbuffers)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glGenRenderbuffers(n, renderbuffers);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.GenRenderbuffers(n, renderbuffers);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glGetActiveAttrib(GLuint program, GLuint index, GLsizei bufsize, GLsizei* length, GLint* size, GLenum* type, char* name)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glGetActiveAttrib(program, index, bufsize, length, size, type, name);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.GetActiveAttrib(program, index, bufsize, length, size, type, name);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glGetActiveUniform(GLuint program, GLuint index, GLsizei bufsize, GLsizei* length, GLint* size, GLenum* type, char* name)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glGetActiveUniform(program, index, bufsize, length, size, type, name);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.GetActiveUniform(program, index, bufsize, length, size, type, name);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glGetAttachedShaders(GLuint program, GLsizei maxcount, GLsizei* count, GLuint* shaders)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glGetAttachedShaders(program, maxcount, count, shaders);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.GetAttachedShaders(program, maxcount, count, shaders);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline GLint QOpenGLFunctions::glGetAttribLocation(GLuint program, const char* name)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    GLint result = ::glGetAttribLocation(program, name);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    GLint result = d_ptr->f.GetAttribLocation(program, name);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
    return result;
}

inline void QOpenGLFunctions::glGetBufferParameteriv(GLenum target, GLenum pname, GLint* params)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glGetBufferParameteriv(target, pname, params);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.GetBufferParameteriv(target, pname, params);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glGetFramebufferAttachmentParameteriv(GLenum target, GLenum attachment, GLenum pname, GLint* params)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glGetFramebufferAttachmentParameteriv(target, attachment, pname, params);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.GetFramebufferAttachmentParameteriv(target, attachment, pname, params);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glGetProgramiv(GLuint program, GLenum pname, GLint* params)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glGetProgramiv(program, pname, params);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.GetProgramiv(program, pname, params);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glGetProgramInfoLog(GLuint program, GLsizei bufsize, GLsizei* length, char* infolog)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glGetProgramInfoLog(program, bufsize, length, infolog);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.GetProgramInfoLog(program, bufsize, length, infolog);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glGetRenderbufferParameteriv(GLenum target, GLenum pname, GLint* params)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glGetRenderbufferParameteriv(target, pname, params);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.GetRenderbufferParameteriv(target, pname, params);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glGetShaderiv(GLuint shader, GLenum pname, GLint* params)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glGetShaderiv(shader, pname, params);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.GetShaderiv(shader, pname, params);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glGetShaderInfoLog(GLuint shader, GLsizei bufsize, GLsizei* length, char* infolog)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glGetShaderInfoLog(shader, bufsize, length, infolog);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.GetShaderInfoLog(shader, bufsize, length, infolog);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glGetShaderPrecisionFormat(GLenum shadertype, GLenum precisiontype, GLint* range, GLint* precision)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glGetShaderPrecisionFormat(shadertype, precisiontype, range, precision);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.GetShaderPrecisionFormat(shadertype, precisiontype, range, precision);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glGetShaderSource(GLuint shader, GLsizei bufsize, GLsizei* length, char* source)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glGetShaderSource(shader, bufsize, length, source);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.GetShaderSource(shader, bufsize, length, source);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glGetUniformfv(GLuint program, GLint location, GLfloat* params)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glGetUniformfv(program, location, params);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.GetUniformfv(program, location, params);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glGetUniformiv(GLuint program, GLint location, GLint* params)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glGetUniformiv(program, location, params);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.GetUniformiv(program, location, params);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline GLint QOpenGLFunctions::glGetUniformLocation(GLuint program, const char* name)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    GLint result = ::glGetUniformLocation(program, name);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    GLint result = d_ptr->f.GetUniformLocation(program, name);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
    return result;
}

inline void QOpenGLFunctions::glGetVertexAttribfv(GLuint index, GLenum pname, GLfloat* params)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glGetVertexAttribfv(index, pname, params);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.GetVertexAttribfv(index, pname, params);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glGetVertexAttribiv(GLuint index, GLenum pname, GLint* params)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glGetVertexAttribiv(index, pname, params);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.GetVertexAttribiv(index, pname, params);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glGetVertexAttribPointerv(GLuint index, GLenum pname, void** pointer)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glGetVertexAttribPointerv(index, pname, pointer);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.GetVertexAttribPointerv(index, pname, pointer);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline GLboolean QOpenGLFunctions::glIsBuffer(GLuint buffer)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    GLboolean result = ::glIsBuffer(buffer);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    GLboolean result = d_ptr->f.IsBuffer(buffer);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
    return result;
}

inline GLboolean QOpenGLFunctions::glIsFramebuffer(GLuint framebuffer)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    GLboolean result = ::glIsFramebuffer(framebuffer);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    GLboolean result = d_ptr->f.IsFramebuffer(framebuffer);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
    return result;
}

inline GLboolean QOpenGLFunctions::glIsProgram(GLuint program)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    GLboolean result = ::glIsProgram(program);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    GLboolean result = d_ptr->f.IsProgram(program);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
    return result;
}

inline GLboolean QOpenGLFunctions::glIsRenderbuffer(GLuint renderbuffer)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    GLboolean result = ::glIsRenderbuffer(renderbuffer);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    GLboolean result = d_ptr->f.IsRenderbuffer(renderbuffer);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
    return result;
}

inline GLboolean QOpenGLFunctions::glIsShader(GLuint shader)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    GLboolean result = ::glIsShader(shader);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    GLboolean result = d_ptr->f.IsShader(shader);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
    return result;
}

inline void QOpenGLFunctions::glLinkProgram(GLuint program)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glLinkProgram(program);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.LinkProgram(program);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glReleaseShaderCompiler()
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glReleaseShaderCompiler();
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.ReleaseShaderCompiler();
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glRenderbufferStorage(GLenum target, GLenum internalformat, GLsizei width, GLsizei height)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glRenderbufferStorage(target, internalformat, width, height);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.RenderbufferStorage(target, internalformat, width, height);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glSampleCoverage(GLclampf value, GLboolean invert)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glSampleCoverage(value, invert);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.SampleCoverage(value, invert);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glShaderBinary(GLint n, const GLuint* shaders, GLenum binaryformat, const void* binary, GLint length)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glShaderBinary(n, shaders, binaryformat, binary, length);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.ShaderBinary(n, shaders, binaryformat, binary, length);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glShaderSource(GLuint shader, GLsizei count, const char** string, const GLint* length)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glShaderSource(shader, count, string, length);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.ShaderSource(shader, count, string, length);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glStencilFuncSeparate(GLenum face, GLenum func, GLint ref, GLuint mask)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glStencilFuncSeparate(face, func, ref, mask);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.StencilFuncSeparate(face, func, ref, mask);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glStencilMaskSeparate(GLenum face, GLuint mask)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glStencilMaskSeparate(face, mask);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.StencilMaskSeparate(face, mask);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glStencilOpSeparate(GLenum face, GLenum fail, GLenum zfail, GLenum zpass)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glStencilOpSeparate(face, fail, zfail, zpass);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.StencilOpSeparate(face, fail, zfail, zpass);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glUniform1f(GLint location, GLfloat x)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glUniform1f(location, x);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.Uniform1f(location, x);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glUniform1fv(GLint location, GLsizei count, const GLfloat* v)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glUniform1fv(location, count, v);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.Uniform1fv(location, count, v);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glUniform1i(GLint location, GLint x)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glUniform1i(location, x);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.Uniform1i(location, x);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glUniform1iv(GLint location, GLsizei count, const GLint* v)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glUniform1iv(location, count, v);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.Uniform1iv(location, count, v);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glUniform2f(GLint location, GLfloat x, GLfloat y)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glUniform2f(location, x, y);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.Uniform2f(location, x, y);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glUniform2fv(GLint location, GLsizei count, const GLfloat* v)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glUniform2fv(location, count, v);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.Uniform2fv(location, count, v);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glUniform2i(GLint location, GLint x, GLint y)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glUniform2i(location, x, y);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.Uniform2i(location, x, y);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glUniform2iv(GLint location, GLsizei count, const GLint* v)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glUniform2iv(location, count, v);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.Uniform2iv(location, count, v);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glUniform3f(GLint location, GLfloat x, GLfloat y, GLfloat z)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glUniform3f(location, x, y, z);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.Uniform3f(location, x, y, z);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glUniform3fv(GLint location, GLsizei count, const GLfloat* v)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glUniform3fv(location, count, v);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.Uniform3fv(location, count, v);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glUniform3i(GLint location, GLint x, GLint y, GLint z)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glUniform3i(location, x, y, z);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.Uniform3i(location, x, y, z);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glUniform3iv(GLint location, GLsizei count, const GLint* v)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glUniform3iv(location, count, v);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.Uniform3iv(location, count, v);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glUniform4f(GLint location, GLfloat x, GLfloat y, GLfloat z, GLfloat w)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glUniform4f(location, x, y, z, w);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.Uniform4f(location, x, y, z, w);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glUniform4fv(GLint location, GLsizei count, const GLfloat* v)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glUniform4fv(location, count, v);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.Uniform4fv(location, count, v);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glUniform4i(GLint location, GLint x, GLint y, GLint z, GLint w)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glUniform4i(location, x, y, z, w);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.Uniform4i(location, x, y, z, w);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glUniform4iv(GLint location, GLsizei count, const GLint* v)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glUniform4iv(location, count, v);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.Uniform4iv(location, count, v);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glUniformMatrix2fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat* value)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glUniformMatrix2fv(location, count, transpose, value);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.UniformMatrix2fv(location, count, transpose, value);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glUniformMatrix3fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat* value)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glUniformMatrix3fv(location, count, transpose, value);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.UniformMatrix3fv(location, count, transpose, value);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glUniformMatrix4fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat* value)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glUniformMatrix4fv(location, count, transpose, value);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.UniformMatrix4fv(location, count, transpose, value);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glUseProgram(GLuint program)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glUseProgram(program);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.UseProgram(program);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glValidateProgram(GLuint program)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glValidateProgram(program);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.ValidateProgram(program);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glVertexAttrib1f(GLuint indx, GLfloat x)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glVertexAttrib1f(indx, x);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.VertexAttrib1f(indx, x);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glVertexAttrib1fv(GLuint indx, const GLfloat* values)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glVertexAttrib1fv(indx, values);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.VertexAttrib1fv(indx, values);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glVertexAttrib2f(GLuint indx, GLfloat x, GLfloat y)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glVertexAttrib2f(indx, x, y);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.VertexAttrib2f(indx, x, y);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glVertexAttrib2fv(GLuint indx, const GLfloat* values)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glVertexAttrib2fv(indx, values);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.VertexAttrib2fv(indx, values);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glVertexAttrib3f(GLuint indx, GLfloat x, GLfloat y, GLfloat z)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glVertexAttrib3f(indx, x, y, z);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.VertexAttrib3f(indx, x, y, z);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glVertexAttrib3fv(GLuint indx, const GLfloat* values)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glVertexAttrib3fv(indx, values);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.VertexAttrib3fv(indx, values);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glVertexAttrib4f(GLuint indx, GLfloat x, GLfloat y, GLfloat z, GLfloat w)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glVertexAttrib4f(indx, x, y, z, w);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.VertexAttrib4f(indx, x, y, z, w);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glVertexAttrib4fv(GLuint indx, const GLfloat* values)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glVertexAttrib4fv(indx, values);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.VertexAttrib4fv(indx, values);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

inline void QOpenGLFunctions::glVertexAttribPointer(GLuint indx, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const void* ptr)
{
#if defined(QT_OPENGL_ES_2) && defined(Q_OS_ANDROID)
    ::glVertexAttribPointer(indx, size, type, normalized, stride, ptr);
#else
    Q_ASSERT(QOpenGLFunctions::isInitialized(d_ptr));
    d_ptr->f.VertexAttribPointer(indx, size, type, normalized, stride, ptr);
#endif
    Q_OPENGL_FUNCTIONS_DEBUG
}

#undef QT_OPENGL_DECLARE_FUNCTIONS
#undef QT_OPENGL_COUNT_FUNCTIONS
#undef QT_OPENGL_DECLARE

QT_END_NAMESPACE

#endif // QT_NO_OPENGL

#endif