a cosmetic change as suggested by div0:
[divverent/darkplaces.git] / glquake.h
1 /*
2 Copyright (C) 1996-1997 Id Software, Inc.
3
4 This program is free software; you can redistribute it and/or
5 modify it under the terms of the GNU General Public License
6 as published by the Free Software Foundation; either version 2
7 of the License, or (at your option) any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
12
13 See the GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
18
19 */
20
21 #ifndef GLQUAKE_H
22 #define GLQUAKE_H
23
24 // disable data conversion warnings
25
26 #ifdef _MSC_VER
27 #pragma warning(disable : 4244)     // LordHavoc: MSVC++ 4 x86, double/float
28 #pragma warning(disable : 4305)         // LordHavoc: MSVC++ 6 x86, double/float
29 #endif
30
31
32 //====================================================
33
34 // wgl uses APIENTRY
35 #ifndef APIENTRY
36 #define APIENTRY
37 #endif
38
39 // for platforms (wgl) that do not use GLAPIENTRY
40 #ifndef GLAPIENTRY
41 #define GLAPIENTRY APIENTRY
42 #endif
43
44 #ifndef GL_PROJECTION
45 typedef unsigned int GLenum;
46 typedef unsigned char GLboolean;
47 typedef unsigned int GLbitfield;
48 typedef void GLvoid;
49 // 1-byte signed
50 typedef signed char GLbyte;
51 // 2-byte signed
52 typedef short GLshort;
53 // 4-byte signed
54 typedef int GLint;
55 // 1-byte unsigned
56 typedef unsigned char GLubyte;
57 // 2-byte unsigned
58 typedef unsigned short GLushort;
59 // 4-byte unsigned
60 typedef unsigned int GLuint;
61 // 4-byte signed
62 typedef int GLsizei;
63 // single precision float
64 typedef float GLfloat;
65 // single precision float in [0,1]
66 typedef float GLclampf;
67 // double precision float
68 typedef double GLdouble;
69 // double precision float in [0,1]
70 typedef double GLclampd;
71
72 #define GL_MODELVIEW                            0x1700
73 #define GL_PROJECTION                           0x1701
74 #define GL_TEXTURE                              0x1702
75 #define GL_MATRIX_MODE                          0x0BA0
76 #define GL_MODELVIEW_MATRIX                     0x0BA6
77 #define GL_PROJECTION_MATRIX                    0x0BA7
78 #define GL_TEXTURE_MATRIX                       0x0BA8
79
80 #define GL_DEPTH_TEST                           0x0B71
81
82 #define GL_CULL_FACE                            0x0B44
83
84 #define GL_BLEND                                0x0BE2
85 #define GL_ALPHA_TEST                   0x0BC0
86
87 #define GL_ZERO                                 0x0
88 #define GL_ONE                                  0x1
89 #define GL_SRC_COLOR                            0x0300
90 #define GL_ONE_MINUS_SRC_COLOR                  0x0301
91 #define GL_DST_COLOR                            0x0306
92 #define GL_ONE_MINUS_DST_COLOR                  0x0307
93 #define GL_SRC_ALPHA                            0x0302
94 #define GL_ONE_MINUS_SRC_ALPHA                  0x0303
95 #define GL_DST_ALPHA                            0x0304
96 #define GL_ONE_MINUS_DST_ALPHA                  0x0305
97 #define GL_SRC_ALPHA_SATURATE                   0x0308
98 #define GL_CONSTANT_COLOR                       0x8001
99 #define GL_ONE_MINUS_CONSTANT_COLOR             0x8002
100 #define GL_CONSTANT_ALPHA                       0x8003
101 #define GL_ONE_MINUS_CONSTANT_ALPHA             0x8004
102
103 #define GL_TEXTURE_ENV                          0x2300
104 #define GL_TEXTURE_ENV_MODE                     0x2200
105 #define GL_TEXTURE_1D                           0x0DE0
106 #define GL_TEXTURE_2D                           0x0DE1
107 #define GL_TEXTURE_WRAP_S                       0x2802
108 #define GL_TEXTURE_WRAP_T                       0x2803
109 #define GL_TEXTURE_WRAP_R                       0x8072
110 #define GL_TEXTURE_BORDER_COLOR                 0x1004
111 #define GL_TEXTURE_MAG_FILTER                   0x2800
112 #define GL_TEXTURE_MIN_FILTER                   0x2801
113 #define GL_PACK_ALIGNMENT                       0x0D05
114 #define GL_UNPACK_ALIGNMENT                     0x0CF5
115 #define GL_TEXTURE_BINDING_1D                   0x8068
116 #define GL_TEXTURE_BINDING_2D                   0x8069
117
118 #define GL_NEAREST                              0x2600
119 #define GL_LINEAR                               0x2601
120 #define GL_NEAREST_MIPMAP_NEAREST               0x2700
121 #define GL_NEAREST_MIPMAP_LINEAR                0x2702
122 #define GL_LINEAR_MIPMAP_NEAREST                0x2701
123 #define GL_LINEAR_MIPMAP_LINEAR                 0x2703
124
125 #define GL_LINE                                 0x1B01
126 #define GL_FILL                                 0x1B02
127
128 extern int gl_support_anisotropy;
129 extern int gl_max_anisotropy;
130 #define GL_TEXTURE_MAX_ANISOTROPY_EXT           0x84FE
131 #define GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT       0x84FF
132
133 #define GL_ADD                                  0x0104
134 #define GL_DECAL                                0x2101
135 #define GL_MODULATE                             0x2100
136
137 #define GL_REPEAT                               0x2901
138 #define GL_CLAMP                                0x2900
139
140 #define GL_POINTS                               0x0000
141 #define GL_LINES                                0x0001
142 #define GL_LINE_LOOP                    0x0002
143 #define GL_LINE_STRIP                   0x0003
144 #define GL_TRIANGLES                    0x0004
145 #define GL_TRIANGLE_STRIP               0x0005
146 #define GL_TRIANGLE_FAN                 0x0006
147 #define GL_QUADS                                0x0007
148 #define GL_QUAD_STRIP                   0x0008
149 #define GL_POLYGON                              0x0009
150
151 #define GL_FALSE                                0x0
152 #define GL_TRUE                                 0x1
153
154 #define GL_BYTE                                 0x1400
155 #define GL_UNSIGNED_BYTE                        0x1401
156 #define GL_SHORT                                0x1402
157 #define GL_UNSIGNED_SHORT                       0x1403
158 #define GL_INT                                  0x1404
159 #define GL_UNSIGNED_INT                         0x1405
160 #define GL_FLOAT                                0x1406
161 #define GL_DOUBLE                               0x140A
162 #define GL_2_BYTES                              0x1407
163 #define GL_3_BYTES                              0x1408
164 #define GL_4_BYTES                              0x1409
165
166 #define GL_VERTEX_ARRAY                         0x8074
167 #define GL_NORMAL_ARRAY                         0x8075
168 #define GL_COLOR_ARRAY                          0x8076
169 //#define GL_INDEX_ARRAY                                0x8077
170 #define GL_TEXTURE_COORD_ARRAY                  0x8078
171 //#define GL_EDGE_FLAG_ARRAY                    0x8079
172
173 #define GL_NONE                                 0
174 #define GL_FRONT_LEFT                   0x0400
175 #define GL_FRONT_RIGHT                  0x0401
176 #define GL_BACK_LEFT                    0x0402
177 #define GL_BACK_RIGHT                   0x0403
178 #define GL_FRONT                                0x0404
179 #define GL_BACK                                 0x0405
180 #define GL_LEFT                                 0x0406
181 #define GL_RIGHT                                0x0407
182 #define GL_FRONT_AND_BACK               0x0408
183 #define GL_AUX0                                 0x0409
184 #define GL_AUX1                                 0x040A
185 #define GL_AUX2                                 0x040B
186 #define GL_AUX3                                 0x040C
187
188 #define GL_VENDOR                               0x1F00
189 #define GL_RENDERER                             0x1F01
190 #define GL_VERSION                              0x1F02
191 #define GL_EXTENSIONS                           0x1F03
192
193 #define GL_NO_ERROR                             0x0
194 #define GL_INVALID_VALUE                        0x0501
195 #define GL_INVALID_ENUM                         0x0500
196 #define GL_INVALID_OPERATION                    0x0502
197 #define GL_STACK_OVERFLOW                       0x0503
198 #define GL_STACK_UNDERFLOW                      0x0504
199 #define GL_OUT_OF_MEMORY                        0x0505
200
201 #define GL_DITHER                               0x0BD0
202 #define GL_RGB                                  0x1907
203 #define GL_RGBA                                 0x1908
204
205 #define GL_MAX_TEXTURE_SIZE                     0x0D33
206
207 #define GL_NEVER                                0x0200
208 #define GL_LESS                                 0x0201
209 #define GL_EQUAL                                0x0202
210 #define GL_LEQUAL                               0x0203
211 #define GL_GREATER                              0x0204
212 #define GL_NOTEQUAL                             0x0205
213 #define GL_GEQUAL                               0x0206
214 #define GL_ALWAYS                               0x0207
215 #define GL_DEPTH_TEST                           0x0B71
216
217 #define GL_RED_SCALE                            0x0D14
218 #define GL_GREEN_SCALE                          0x0D18
219 #define GL_BLUE_SCALE                           0x0D1A
220 #define GL_ALPHA_SCALE                          0x0D1C
221
222 #define GL_DEPTH_BUFFER_BIT                     0x00000100
223 #define GL_ACCUM_BUFFER_BIT                     0x00000200
224 #define GL_STENCIL_BUFFER_BIT                   0x00000400
225 #define GL_COLOR_BUFFER_BIT                     0x00004000
226
227 #define GL_STENCIL_TEST                         0x0B90
228 #define GL_KEEP                                 0x1E00
229 #define GL_REPLACE                              0x1E01
230 #define GL_INCR                                 0x1E02
231 #define GL_DECR                                 0x1E03
232
233 #define GL_POLYGON_OFFSET_FACTOR          0x8038
234 #define GL_POLYGON_OFFSET_UNITS           0x2A00
235 #define GL_POLYGON_OFFSET_POINT           0x2A01
236 #define GL_POLYGON_OFFSET_LINE            0x2A02
237 #define GL_POLYGON_OFFSET_FILL            0x8037
238
239 #define GL_POINT_SMOOTH                         0x0B10
240 #define GL_LINE_SMOOTH                          0x0B20
241 #define GL_POLYGON_SMOOTH                       0x0B41
242
243 #define GL_POLYGON_STIPPLE                0x0B42
244
245 #endif
246
247 extern int gl_max_texture_size;
248
249 // GL_ARB_multitexture
250 extern int gl_textureunits;
251 extern void (GLAPIENTRY *qglMultiTexCoord1f) (GLenum, GLfloat);
252 extern void (GLAPIENTRY *qglMultiTexCoord2f) (GLenum, GLfloat, GLfloat);
253 extern void (GLAPIENTRY *qglMultiTexCoord3f) (GLenum, GLfloat, GLfloat, GLfloat);
254 extern void (GLAPIENTRY *qglMultiTexCoord4f) (GLenum, GLfloat, GLfloat, GLfloat, GLfloat);
255 extern void (GLAPIENTRY *qglActiveTexture) (GLenum);
256 extern void (GLAPIENTRY *qglClientActiveTexture) (GLenum);
257 #ifndef GL_ACTIVE_TEXTURE_ARB
258 #define GL_ACTIVE_TEXTURE_ARB                   0x84E0
259 #define GL_CLIENT_ACTIVE_TEXTURE_ARB    0x84E1
260 #define GL_MAX_TEXTURE_UNITS_ARB                0x84E2
261 #define GL_TEXTURE0_ARB                                 0x84C0
262 #define GL_TEXTURE1_ARB                                 0x84C1
263 #define GL_TEXTURE2_ARB                                 0x84C2
264 #define GL_TEXTURE3_ARB                                 0x84C3
265 #define GL_TEXTURE4_ARB                                 0x84C4
266 #define GL_TEXTURE5_ARB                                 0x84C5
267 #define GL_TEXTURE6_ARB                                 0x84C6
268 #define GL_TEXTURE7_ARB                                 0x84C7
269 #define GL_TEXTURE8_ARB                                 0x84C8
270 #define GL_TEXTURE9_ARB                                 0x84C9
271 #define GL_TEXTURE10_ARB                                0x84CA
272 #define GL_TEXTURE11_ARB                                0x84CB
273 #define GL_TEXTURE12_ARB                                0x84CC
274 #define GL_TEXTURE13_ARB                                0x84CD
275 #define GL_TEXTURE14_ARB                                0x84CE
276 #define GL_TEXTURE15_ARB                                0x84CF
277 #define GL_TEXTURE16_ARB                                0x84D0
278 #define GL_TEXTURE17_ARB                                0x84D1
279 #define GL_TEXTURE18_ARB                                0x84D2
280 #define GL_TEXTURE19_ARB                                0x84D3
281 #define GL_TEXTURE20_ARB                                0x84D4
282 #define GL_TEXTURE21_ARB                                0x84D5
283 #define GL_TEXTURE22_ARB                                0x84D6
284 #define GL_TEXTURE23_ARB                                0x84D7
285 #define GL_TEXTURE24_ARB                                0x84D8
286 #define GL_TEXTURE25_ARB                                0x84D9
287 #define GL_TEXTURE26_ARB                                0x84DA
288 #define GL_TEXTURE27_ARB                                0x84DB
289 #define GL_TEXTURE28_ARB                                0x84DC
290 #define GL_TEXTURE29_ARB                                0x84DD
291 #define GL_TEXTURE30_ARB                                0x84DE
292 #define GL_TEXTURE31_ARB                                0x84DF
293 #endif
294
295 // GL_EXT_compiled_vertex_array
296 extern int gl_supportslockarrays;
297 extern void (GLAPIENTRY *qglLockArraysEXT) (GLint first, GLint count);
298 extern void (GLAPIENTRY *qglUnlockArraysEXT) (void);
299
300 // GL_ARB_texture_env_combine
301 extern int gl_combine_extension;
302 #ifndef GL_COMBINE_ARB
303 #define GL_COMBINE_ARB                                  0x8570
304 #define GL_COMBINE_RGB_ARB                              0x8571
305 #define GL_COMBINE_ALPHA_ARB                    0x8572
306 #define GL_SOURCE0_RGB_ARB                              0x8580
307 #define GL_SOURCE1_RGB_ARB                              0x8581
308 #define GL_SOURCE2_RGB_ARB                              0x8582
309 #define GL_SOURCE0_ALPHA_ARB                    0x8588
310 #define GL_SOURCE1_ALPHA_ARB                    0x8589
311 #define GL_SOURCE2_ALPHA_ARB                    0x858A
312 #define GL_OPERAND0_RGB_ARB                             0x8590
313 #define GL_OPERAND1_RGB_ARB                             0x8591
314 #define GL_OPERAND2_RGB_ARB                             0x8592
315 #define GL_OPERAND0_ALPHA_ARB                   0x8598
316 #define GL_OPERAND1_ALPHA_ARB                   0x8599
317 #define GL_OPERAND2_ALPHA_ARB                   0x859A
318 #define GL_RGB_SCALE_ARB                                0x8573
319 #define GL_ADD_SIGNED_ARB                               0x8574
320 #define GL_INTERPOLATE_ARB                              0x8575
321 #define GL_SUBTRACT_ARB                                 0x84E7
322 #define GL_CONSTANT_ARB                                 0x8576
323 #define GL_PRIMARY_COLOR_ARB                    0x8577
324 #define GL_PREVIOUS_ARB                                 0x8578
325 #endif
326
327 #ifndef GL_MAX_ELEMENTS_VERTICES
328 #define GL_MAX_ELEMENTS_VERTICES                0x80E8
329 #endif
330 #ifndef GL_MAX_ELEMENTS_INDICES
331 #define GL_MAX_ELEMENTS_INDICES                 0x80E9
332 #endif
333
334
335 extern int gl_texture3d;
336 extern int gl_max_3d_texture_size;
337 #ifndef GL_TEXTURE_3D
338 #define GL_PACK_SKIP_IMAGES                     0x806B
339 #define GL_PACK_IMAGE_HEIGHT                    0x806C
340 #define GL_UNPACK_SKIP_IMAGES                   0x806D
341 #define GL_UNPACK_IMAGE_HEIGHT                  0x806E
342 #define GL_TEXTURE_3D                           0x806F
343 #define GL_PROXY_TEXTURE_3D                     0x8070
344 #define GL_TEXTURE_DEPTH                        0x8071
345 #define GL_TEXTURE_WRAP_R                       0x8072
346 #define GL_MAX_3D_TEXTURE_SIZE                  0x8073
347 #define GL_TEXTURE_BINDING_3D                   0x806A
348 extern void (GLAPIENTRY *qglTexImage3D)(GLenum target, GLint level, GLenum internalFormat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
349 extern void (GLAPIENTRY *qglTexSubImage3D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, const GLvoid *pixels);
350 extern void (GLAPIENTRY *qglCopyTexSubImage3D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLint x, GLint y, GLsizei width, GLsizei height);
351 #endif
352
353 extern int gl_texturecubemap;
354 extern int gl_max_cube_map_texture_size;
355 #ifndef GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
356 #define GL_NORMAL_MAP_ARB                           0x8511
357 #define GL_REFLECTION_MAP_ARB               0x8512
358 #define GL_TEXTURE_CUBE_MAP_ARB             0x8513
359 #define GL_TEXTURE_BINDING_CUBE_MAP_ARB     0x8514
360 #define GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB     0x8515
361 #define GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB     0x8516
362 #define GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB     0x8517
363 #define GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB     0x8518
364 #define GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB     0x8519
365 #define GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB     0x851A
366 #define GL_PROXY_TEXTURE_CUBE_MAP_ARB       0x851B
367 #define GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB                0x851C
368 #endif
369
370 extern int gl_dot3arb;
371 #ifndef GL_DOT3_RGB_ARB
372 #define GL_DOT3_RGB_ARB                         0x86AE
373 #define GL_DOT3_RGBA_ARB                                0x86AF
374 #endif
375
376 /*
377 // uncomment if this is actually needed by anyone
378 extern int gl_dot3ext;
379 #ifndef GL_DOT3_RGB_EXT
380 #define GL_DOT3_RGB_EXT                         0x8740
381 #define GL_DOT3_RGBA_EXT                        0x8741
382 #endif
383 */
384
385 #ifndef GL_SCISSOR_TEST
386 #define GL_SCISSOR_TEST                         0x0C11
387 #define GL_SCISSOR_BOX                          0x0C10
388 #endif
389
390 // GL_SGIS_texture_edge_clamp or GL_EXT_texture_edge_clamp
391 extern int gl_support_clamptoedge;
392 #ifndef GL_CLAMP_TO_EDGE
393 #define GL_CLAMP_TO_EDGE 0x812F
394 #endif
395
396 //GL_ATI_separate_stencil
397 extern int gl_support_separatestencil;
398 #ifndef GL_STENCIL_BACK_FUNC
399 #define GL_STENCIL_BACK_FUNC              0x8800
400 #define GL_STENCIL_BACK_FAIL              0x8801
401 #define GL_STENCIL_BACK_PASS_DEPTH_FAIL   0x8802
402 #define GL_STENCIL_BACK_PASS_DEPTH_PASS   0x8803
403 #endif
404 extern void (GLAPIENTRY *qglStencilOpSeparate)(GLenum, GLenum, GLenum, GLenum);
405 extern void (GLAPIENTRY *qglStencilFuncSeparate)(GLenum, GLenum, GLint, GLuint);
406
407 //GL_EXT_stencil_two_side
408 #define GL_STENCIL_TEST_TWO_SIDE_EXT      0x8910
409 #define GL_ACTIVE_STENCIL_FACE_EXT        0x8911
410 extern void (GLAPIENTRY *qglActiveStencilFaceEXT)(GLenum);
411 extern int gl_support_stenciltwoside;
412
413 //GL_EXT_blend_minmax
414 extern int gl_support_ext_blend_minmax;
415 #ifndef GL_FUNC_ADD_EXT
416 #define GL_FUNC_ADD_EXT                   0x8006 // also supplied by GL_EXT_blend_subtract
417 #define GL_MIN_EXT                        0x8007
418 #define GL_MAX_EXT                        0x8008
419 #define GL_BLEND_EQUATION_EXT             0x8009 // also supplied by GL_EXT_blend_subtract
420 extern void (GLAPIENTRY *qglBlendEquationEXT)(GLenum); // also supplied by GL_EXT_blend_subtract
421 #endif
422
423 //GL_EXT_blend_subtract
424 extern int gl_support_ext_blend_subtract;
425 #ifndef GL_FUNC_SUBTRACT_EXT
426 #define GL_FUNC_SUBTRACT_EXT              0x800A
427 #define GL_FUNC_REVERSE_SUBTRACT_EXT      0x800B
428 #endif
429
430 //GL_ARB_texture_non_power_of_two
431 extern int gl_support_arb_texture_non_power_of_two;
432
433 extern void (GLAPIENTRY *qglScissor)(GLint x, GLint y, GLsizei width, GLsizei height);
434
435 extern void (GLAPIENTRY *qglClearColor)(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha);
436
437 extern void (GLAPIENTRY *qglClear)(GLbitfield mask);
438
439 extern void (GLAPIENTRY *qglAlphaFunc)(GLenum func, GLclampf ref);
440 extern void (GLAPIENTRY *qglBlendFunc)(GLenum sfactor, GLenum dfactor);
441 extern void (GLAPIENTRY *qglCullFace)(GLenum mode);
442
443 extern void (GLAPIENTRY *qglDrawBuffer)(GLenum mode);
444 extern void (GLAPIENTRY *qglReadBuffer)(GLenum mode);
445 extern void (GLAPIENTRY *qglEnable)(GLenum cap);
446 extern void (GLAPIENTRY *qglDisable)(GLenum cap);
447 extern GLboolean (GLAPIENTRY *qglIsEnabled)(GLenum cap);
448
449 extern void (GLAPIENTRY *qglEnableClientState)(GLenum cap);
450 extern void (GLAPIENTRY *qglDisableClientState)(GLenum cap);
451
452 extern void (GLAPIENTRY *qglGetBooleanv)(GLenum pname, GLboolean *params);
453 extern void (GLAPIENTRY *qglGetDoublev)(GLenum pname, GLdouble *params);
454 extern void (GLAPIENTRY *qglGetFloatv)(GLenum pname, GLfloat *params);
455 extern void (GLAPIENTRY *qglGetIntegerv)(GLenum pname, GLint *params);
456
457 extern GLenum (GLAPIENTRY *qglGetError)(void);
458 extern const GLubyte* (GLAPIENTRY *qglGetString)(GLenum name);
459 extern void (GLAPIENTRY *qglFinish)(void);
460 extern void (GLAPIENTRY *qglFlush)(void);
461
462 extern void (GLAPIENTRY *qglClearDepth)(GLclampd depth);
463 extern void (GLAPIENTRY *qglDepthFunc)(GLenum func);
464 extern void (GLAPIENTRY *qglDepthMask)(GLboolean flag);
465 extern void (GLAPIENTRY *qglDepthRange)(GLclampd near_val, GLclampd far_val);
466 extern void (GLAPIENTRY *qglColorMask)(GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha);
467
468 extern void (GLAPIENTRY *qglDrawRangeElements)(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const GLvoid *indices);
469 extern void (GLAPIENTRY *qglDrawElements)(GLenum mode, GLsizei count, GLenum type, const GLvoid *indices);
470 extern void (GLAPIENTRY *qglVertexPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
471 extern void (GLAPIENTRY *qglNormalPointer)(GLenum type, GLsizei stride, const GLvoid *ptr);
472 extern void (GLAPIENTRY *qglColorPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
473 extern void (GLAPIENTRY *qglTexCoordPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
474 extern void (GLAPIENTRY *qglArrayElement)(GLint i);
475
476 extern void (GLAPIENTRY *qglColor4f)(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
477 extern void (GLAPIENTRY *qglTexCoord1f)(GLfloat s);
478 extern void (GLAPIENTRY *qglTexCoord2f)(GLfloat s, GLfloat t);
479 extern void (GLAPIENTRY *qglTexCoord3f)(GLfloat s, GLfloat t, GLfloat r);
480 extern void (GLAPIENTRY *qglTexCoord4f)(GLfloat s, GLfloat t, GLfloat r, GLfloat q);
481 extern void (GLAPIENTRY *qglVertex2f)(GLfloat x, GLfloat y);
482 extern void (GLAPIENTRY *qglVertex3f)(GLfloat x, GLfloat y, GLfloat z);
483 extern void (GLAPIENTRY *qglBegin)(GLenum mode);
484 extern void (GLAPIENTRY *qglEnd)(void);
485
486 extern void (GLAPIENTRY *qglMatrixMode)(GLenum mode);
487 extern void (GLAPIENTRY *qglOrtho)(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble near_val, GLdouble far_val);
488 extern void (GLAPIENTRY *qglFrustum)(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble near_val, GLdouble far_val);
489 extern void (GLAPIENTRY *qglViewport)(GLint x, GLint y, GLsizei width, GLsizei height);
490 extern void (GLAPIENTRY *qglPushMatrix)(void);
491 extern void (GLAPIENTRY *qglPopMatrix)(void);
492 extern void (GLAPIENTRY *qglLoadIdentity)(void);
493 extern void (GLAPIENTRY *qglLoadMatrixd)(const GLdouble *m);
494 extern void (GLAPIENTRY *qglLoadMatrixf)(const GLfloat *m);
495 extern void (GLAPIENTRY *qglMultMatrixd)(const GLdouble *m);
496 extern void (GLAPIENTRY *qglMultMatrixf)(const GLfloat *m);
497 extern void (GLAPIENTRY *qglRotated)(GLdouble angle, GLdouble x, GLdouble y, GLdouble z);
498 extern void (GLAPIENTRY *qglRotatef)(GLfloat angle, GLfloat x, GLfloat y, GLfloat z);
499 extern void (GLAPIENTRY *qglScaled)(GLdouble x, GLdouble y, GLdouble z);
500 extern void (GLAPIENTRY *qglScalef)(GLfloat x, GLfloat y, GLfloat z);
501 extern void (GLAPIENTRY *qglTranslated)(GLdouble x, GLdouble y, GLdouble z);
502 extern void (GLAPIENTRY *qglTranslatef)(GLfloat x, GLfloat y, GLfloat z);
503
504 extern void (GLAPIENTRY *qglReadPixels)(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLvoid *pixels);
505
506 extern void (GLAPIENTRY *qglStencilFunc)(GLenum func, GLint ref, GLuint mask);
507 extern void (GLAPIENTRY *qglStencilMask)(GLuint mask);
508 extern void (GLAPIENTRY *qglStencilOp)(GLenum fail, GLenum zfail, GLenum zpass);
509 extern void (GLAPIENTRY *qglClearStencil)(GLint s);
510
511 extern void (GLAPIENTRY *qglTexEnvf)(GLenum target, GLenum pname, GLfloat param);
512 extern void (GLAPIENTRY *qglTexEnvfv)(GLenum target, GLenum pname, const GLfloat *params);
513 extern void (GLAPIENTRY *qglTexEnvi)(GLenum target, GLenum pname, GLint param);
514 extern void (GLAPIENTRY *qglTexParameterf)(GLenum target, GLenum pname, GLfloat param);
515 extern void (GLAPIENTRY *qglTexParameterfv)(GLenum target, GLenum pname, GLfloat *params);
516 extern void (GLAPIENTRY *qglTexParameteri)(GLenum target, GLenum pname, GLint param);
517
518 extern void (GLAPIENTRY *qglGenTextures)(GLsizei n, GLuint *textures);
519 extern void (GLAPIENTRY *qglDeleteTextures)(GLsizei n, const GLuint *textures);
520 extern void (GLAPIENTRY *qglBindTexture)(GLenum target, GLuint texture);
521 //extern void (GLAPIENTRY *qglPrioritizeTextures)(GLsizei n, const GLuint *textures, const GLclampf *priorities);
522 //extern GLboolean (GLAPIENTRY *qglAreTexturesResident)(GLsizei n, const GLuint *textures, GLboolean *residences);
523 extern GLboolean (GLAPIENTRY *qglIsTexture)(GLuint texture);
524 extern void (GLAPIENTRY *qglPixelStoref)(GLenum pname, GLfloat param);
525 extern void (GLAPIENTRY *qglPixelStorei)(GLenum pname, GLint param);
526
527 extern void (GLAPIENTRY *qglTexImage1D)(GLenum target, GLint level, GLint internalFormat, GLsizei width, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
528 extern void (GLAPIENTRY *qglTexImage2D)(GLenum target, GLint level, GLint internalFormat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
529 extern void (GLAPIENTRY *qglTexSubImage1D)(GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLenum type, const GLvoid *pixels);
530 extern void (GLAPIENTRY *qglTexSubImage2D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid *pixels);
531 extern void (GLAPIENTRY *qglCopyTexImage1D)(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLint border);
532 extern void (GLAPIENTRY *qglCopyTexImage2D)(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border);
533 extern void (GLAPIENTRY *qglCopyTexSubImage1D)(GLenum target, GLint level, GLint xoffset, GLint x, GLint y, GLsizei width);
534 extern void (GLAPIENTRY *qglCopyTexSubImage2D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height);
535
536 extern void (GLAPIENTRY *qglPolygonOffset)(GLfloat factor, GLfloat units);
537 extern void (GLAPIENTRY *qglPolygonMode)(GLenum face, GLenum mode);
538
539 //[515]: added on 29.07.2005
540 extern void (GLAPIENTRY *qglLineWidth)(GLfloat width);
541 extern void (GLAPIENTRY *qglPointSize)(GLfloat size);
542
543 // GL_ARB_shader_objects
544 extern int gl_support_shader_objects;
545 #ifndef GL_PROGRAM_OBJECT_ARB
546 // 1-byte character string
547 typedef char GLcharARB;
548 // 4-byte integer handle to a shader object or program object
549 typedef int GLhandleARB;
550 #endif
551 extern void (GLAPIENTRY *qglDeleteObjectARB)(GLhandleARB obj);
552 extern GLhandleARB (GLAPIENTRY *qglGetHandleARB)(GLenum pname);
553 extern void (GLAPIENTRY *qglDetachObjectARB)(GLhandleARB containerObj, GLhandleARB attachedObj);
554 extern GLhandleARB (GLAPIENTRY *qglCreateShaderObjectARB)(GLenum shaderType);
555 extern void (GLAPIENTRY *qglShaderSourceARB)(GLhandleARB shaderObj, GLsizei count, const GLcharARB **string, const GLint *length);
556 extern void (GLAPIENTRY *qglCompileShaderARB)(GLhandleARB shaderObj);
557 extern GLhandleARB (GLAPIENTRY *qglCreateProgramObjectARB)(void);
558 extern void (GLAPIENTRY *qglAttachObjectARB)(GLhandleARB containerObj, GLhandleARB obj);
559 extern void (GLAPIENTRY *qglLinkProgramARB)(GLhandleARB programObj);
560 extern void (GLAPIENTRY *qglUseProgramObjectARB)(GLhandleARB programObj);
561 extern void (GLAPIENTRY *qglValidateProgramARB)(GLhandleARB programObj);
562 extern void (GLAPIENTRY *qglUniform1fARB)(GLint location, GLfloat v0);
563 extern void (GLAPIENTRY *qglUniform2fARB)(GLint location, GLfloat v0, GLfloat v1);
564 extern void (GLAPIENTRY *qglUniform3fARB)(GLint location, GLfloat v0, GLfloat v1, GLfloat v2);
565 extern void (GLAPIENTRY *qglUniform4fARB)(GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3);
566 extern void (GLAPIENTRY *qglUniform1iARB)(GLint location, GLint v0);
567 extern void (GLAPIENTRY *qglUniform2iARB)(GLint location, GLint v0, GLint v1);
568 extern void (GLAPIENTRY *qglUniform3iARB)(GLint location, GLint v0, GLint v1, GLint v2);
569 extern void (GLAPIENTRY *qglUniform4iARB)(GLint location, GLint v0, GLint v1, GLint v2, GLint v3);
570 extern void (GLAPIENTRY *qglUniform1fvARB)(GLint location, GLsizei count, const GLfloat *value);
571 extern void (GLAPIENTRY *qglUniform2fvARB)(GLint location, GLsizei count, const GLfloat *value);
572 extern void (GLAPIENTRY *qglUniform3fvARB)(GLint location, GLsizei count, const GLfloat *value);
573 extern void (GLAPIENTRY *qglUniform4fvARB)(GLint location, GLsizei count, const GLfloat *value);
574 extern void (GLAPIENTRY *qglUniform1ivARB)(GLint location, GLsizei count, const GLint *value);
575 extern void (GLAPIENTRY *qglUniform2ivARB)(GLint location, GLsizei count, const GLint *value);
576 extern void (GLAPIENTRY *qglUniform3ivARB)(GLint location, GLsizei count, const GLint *value);
577 extern void (GLAPIENTRY *qglUniform4ivARB)(GLint location, GLsizei count, const GLint *value);
578 extern void (GLAPIENTRY *qglUniformMatrix2fvARB)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
579 extern void (GLAPIENTRY *qglUniformMatrix3fvARB)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
580 extern void (GLAPIENTRY *qglUniformMatrix4fvARB)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
581 extern void (GLAPIENTRY *qglGetObjectParameterfvARB)(GLhandleARB obj, GLenum pname, GLfloat *params);
582 extern void (GLAPIENTRY *qglGetObjectParameterivARB)(GLhandleARB obj, GLenum pname, GLint *params);
583 extern void (GLAPIENTRY *qglGetInfoLogARB)(GLhandleARB obj, GLsizei maxLength, GLsizei *length, GLcharARB *infoLog);
584 extern void (GLAPIENTRY *qglGetAttachedObjectsARB)(GLhandleARB containerObj, GLsizei maxCount, GLsizei *count, GLhandleARB *obj);
585 extern GLint (GLAPIENTRY *qglGetUniformLocationARB)(GLhandleARB programObj, const GLcharARB *name);
586 extern void (GLAPIENTRY *qglGetActiveUniformARB)(GLhandleARB programObj, GLuint index, GLsizei maxLength, GLsizei *length, GLint *size, GLenum *type, GLcharARB *name);
587 extern void (GLAPIENTRY *qglGetUniformfvARB)(GLhandleARB programObj, GLint location, GLfloat *params);
588 extern void (GLAPIENTRY *qglGetUniformivARB)(GLhandleARB programObj, GLint location, GLint *params);
589 extern void (GLAPIENTRY *qglGetShaderSourceARB)(GLhandleARB obj, GLsizei maxLength, GLsizei *length, GLcharARB *source);
590 extern void (GLAPIENTRY *qglPolygonStipple)(const GLubyte *mask);
591 #ifndef GL_PROGRAM_OBJECT_ARB
592 #define GL_PROGRAM_OBJECT_ARB                                   0x8B40
593 #define GL_OBJECT_TYPE_ARB                                              0x8B4E
594 #define GL_OBJECT_SUBTYPE_ARB                                   0x8B4F
595 #define GL_OBJECT_DELETE_STATUS_ARB                             0x8B80
596 #define GL_OBJECT_COMPILE_STATUS_ARB                    0x8B81
597 #define GL_OBJECT_LINK_STATUS_ARB                               0x8B82
598 #define GL_OBJECT_VALIDATE_STATUS_ARB                   0x8B83
599 #define GL_OBJECT_INFO_LOG_LENGTH_ARB                   0x8B84
600 #define GL_OBJECT_ATTACHED_OBJECTS_ARB                  0x8B85
601 #define GL_OBJECT_ACTIVE_UNIFORMS_ARB                   0x8B86
602 #define GL_OBJECT_ACTIVE_UNIFORM_MAX_LENGTH_ARB 0x8B87
603 #define GL_OBJECT_SHADER_SOURCE_LENGTH_ARB              0x8B88
604 #define GL_SHADER_OBJECT_ARB                                    0x8B48
605 #define GL_FLOAT                                                                0x1406
606 #define GL_FLOAT_VEC2_ARB                                               0x8B50
607 #define GL_FLOAT_VEC3_ARB                                               0x8B51
608 #define GL_FLOAT_VEC4_ARB                                               0x8B52
609 #define GL_INT                                                                  0x1404
610 #define GL_INT_VEC2_ARB                                                 0x8B53
611 #define GL_INT_VEC3_ARB                                                 0x8B54
612 #define GL_INT_VEC4_ARB                                                 0x8B55
613 #define GL_BOOL_ARB                                                             0x8B56
614 #define GL_BOOL_VEC2_ARB                                                0x8B57
615 #define GL_BOOL_VEC3_ARB                                                0x8B58
616 #define GL_BOOL_VEC4_ARB                                                0x8B59
617 #define GL_FLOAT_MAT2_ARB                                               0x8B5A
618 #define GL_FLOAT_MAT3_ARB                                               0x8B5B
619 #define GL_FLOAT_MAT4_ARB                                               0x8B5C
620 #define GL_SAMPLER_1D_ARB                                               0x8B5D
621 #define GL_SAMPLER_2D_ARB                                               0x8B5E
622 #define GL_SAMPLER_3D_ARB                                               0x8B5F
623 #define GL_SAMPLER_CUBE_ARB                                             0x8B60
624 #define GL_SAMPLER_1D_SHADOW_ARB                                0x8B61
625 #define GL_SAMPLER_2D_SHADOW_ARB                                0x8B62
626 #define GL_SAMPLER_2D_RECT_ARB                                  0x8B63
627 #define GL_SAMPLER_2D_RECT_SHADOW_ARB                   0x8B64
628 #endif
629
630 // GL_ARB_vertex_shader
631 extern int gl_support_vertex_shader;
632 //extern void (GLAPIENTRY *qglVertexAttrib1fARB)(GLuint index, GLfloat v0);
633 //extern void (GLAPIENTRY *qglVertexAttrib1sARB)(GLuint index, GLshort v0);
634 //extern void (GLAPIENTRY *qglVertexAttrib1dARB)(GLuint index, GLdouble v0);
635 //extern void (GLAPIENTRY *qglVertexAttrib2fARB)(GLuint index, GLfloat v0, GLfloat v1);
636 //extern void (GLAPIENTRY *qglVertexAttrib2sARB)(GLuint index, GLshort v0, GLshort v1);
637 //extern void (GLAPIENTRY *qglVertexAttrib2dARB)(GLuint index, GLdouble v0, GLdouble v1);
638 //extern void (GLAPIENTRY *qglVertexAttrib3fARB)(GLuint index, GLfloat v0, GLfloat v1, GLfloat v2);
639 //extern void (GLAPIENTRY *qglVertexAttrib3sARB)(GLuint index, GLshort v0, GLshort v1, GLshort v2);
640 //extern void (GLAPIENTRY *qglVertexAttrib3dARB)(GLuint index, GLdouble v0, GLdouble v1, GLdouble v2);
641 //extern void (GLAPIENTRY *qglVertexAttrib4fARB)(GLuint index, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3);
642 //extern void (GLAPIENTRY *qglVertexAttrib4sARB)(GLuint index, GLshort v0, GLshort v1, GLshort v2, GLshort v3);
643 //extern void (GLAPIENTRY *qglVertexAttrib4dARB)(GLuint index, GLdouble v0, GLdouble v1, GLdouble v2, GLdouble v3);
644 //extern void (GLAPIENTRY *qglVertexAttrib4NubARB)(GLuint index, GLubyte x, GLubyte y, GLubyte z, GLubyte w);
645 //extern void (GLAPIENTRY *qglVertexAttrib1fvARB)(GLuint index, const GLfloat *v);
646 //extern void (GLAPIENTRY *qglVertexAttrib1svARB)(GLuint index, const GLshort *v);
647 //extern void (GLAPIENTRY *qglVertexAttrib1dvARB)(GLuint index, const GLdouble *v);
648 //extern void (GLAPIENTRY *qglVertexAttrib2fvARB)(GLuint index, const GLfloat *v);
649 //extern void (GLAPIENTRY *qglVertexAttrib2svARB)(GLuint index, const GLshort *v);
650 //extern void (GLAPIENTRY *qglVertexAttrib2dvARB)(GLuint index, const GLdouble *v);
651 //extern void (GLAPIENTRY *qglVertexAttrib3fvARB)(GLuint index, const GLfloat *v);
652 //extern void (GLAPIENTRY *qglVertexAttrib3svARB)(GLuint index, const GLshort *v);
653 //extern void (GLAPIENTRY *qglVertexAttrib3dvARB)(GLuint index, const GLdouble *v);
654 //extern void (GLAPIENTRY *qglVertexAttrib4fvARB)(GLuint index, const GLfloat *v);
655 //extern void (GLAPIENTRY *qglVertexAttrib4svARB)(GLuint index, const GLshort *v);
656 //extern void (GLAPIENTRY *qglVertexAttrib4dvARB)(GLuint index, const GLdouble *v);
657 //extern void (GLAPIENTRY *qglVertexAttrib4ivARB)(GLuint index, const GLint *v);
658 //extern void (GLAPIENTRY *qglVertexAttrib4bvARB)(GLuint index, const GLbyte *v);
659 //extern void (GLAPIENTRY *qglVertexAttrib4ubvARB)(GLuint index, const GLubyte *v);
660 //extern void (GLAPIENTRY *qglVertexAttrib4usvARB)(GLuint index, const GLushort *v);
661 //extern void (GLAPIENTRY *qglVertexAttrib4uivARB)(GLuint index, const GLuint *v);
662 //extern void (GLAPIENTRY *qglVertexAttrib4NbvARB)(GLuint index, const GLbyte *v);
663 //extern void (GLAPIENTRY *qglVertexAttrib4NsvARB)(GLuint index, const GLshort *v);
664 //extern void (GLAPIENTRY *qglVertexAttrib4NivARB)(GLuint index, const GLint *v);
665 //extern void (GLAPIENTRY *qglVertexAttrib4NubvARB)(GLuint index, const GLubyte *v);
666 //extern void (GLAPIENTRY *qglVertexAttrib4NusvARB)(GLuint index, const GLushort *v);
667 //extern void (GLAPIENTRY *qglVertexAttrib4NuivARB)(GLuint index, const GLuint *v);
668 extern void (GLAPIENTRY *qglVertexAttribPointerARB)(GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const GLvoid *pointer);
669 extern void (GLAPIENTRY *qglEnableVertexAttribArrayARB)(GLuint index);
670 extern void (GLAPIENTRY *qglDisableVertexAttribArrayARB)(GLuint index);
671 extern void (GLAPIENTRY *qglBindAttribLocationARB)(GLhandleARB programObj, GLuint index, const GLcharARB *name);
672 extern void (GLAPIENTRY *qglGetActiveAttribARB)(GLhandleARB programObj, GLuint index, GLsizei maxLength, GLsizei *length, GLint *size, GLenum *type, GLcharARB *name);
673 extern GLint (GLAPIENTRY *qglGetAttribLocationARB)(GLhandleARB programObj, const GLcharARB *name);
674 //extern void (GLAPIENTRY *qglGetVertexAttribdvARB)(GLuint index, GLenum pname, GLdouble *params);
675 //extern void (GLAPIENTRY *qglGetVertexAttribfvARB)(GLuint index, GLenum pname, GLfloat *params);
676 //extern void (GLAPIENTRY *qglGetVertexAttribivARB)(GLuint index, GLenum pname, GLint *params);
677 //extern void (GLAPIENTRY *qglGetVertexAttribPointervARB)(GLuint index, GLenum pname, GLvoid **pointer);
678 #ifndef GL_VERTEX_SHADER_ARB
679 #define GL_VERTEX_SHADER_ARB                                            0x8B31
680 #define GL_MAX_VERTEX_UNIFORM_COMPONENTS_ARB            0x8B4A
681 #define GL_MAX_VARYING_FLOATS_ARB                                       0x8B4B
682 #define GL_MAX_VERTEX_ATTRIBS_ARB                                       0x8869
683 #define GL_MAX_TEXTURE_IMAGE_UNITS_ARB                          0x8872
684 #define GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS_ARB           0x8B4C
685 #define GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS_ARB         0x8B4D
686 #define GL_MAX_TEXTURE_COORDS_ARB                                       0x8871
687 #define GL_VERTEX_PROGRAM_POINT_SIZE_ARB                        0x8642
688 #define GL_VERTEX_PROGRAM_TWO_SIDE_ARB                          0x8643
689 #define GL_OBJECT_ACTIVE_ATTRIBUTES_ARB                         0x8B89
690 #define GL_OBJECT_ACTIVE_ATTRIBUTE_MAX_LENGTH_ARB       0x8B8A
691 #define GL_VERTEX_ATTRIB_ARRAY_ENABLED_ARB                      0x8622
692 #define GL_VERTEX_ATTRIB_ARRAY_SIZE_ARB                         0x8623
693 #define GL_VERTEX_ATTRIB_ARRAY_STRIDE_ARB                       0x8624
694 #define GL_VERTEX_ATTRIB_ARRAY_TYPE_ARB                         0x8625
695 #define GL_VERTEX_ATTRIB_ARRAY_NORMALIZED_ARB           0x886A
696 #define GL_CURRENT_VERTEX_ATTRIB_ARB                            0x8626
697 #define GL_VERTEX_ATTRIB_ARRAY_POINTER_ARB                      0x8645
698 #define GL_FLOAT                                                                        0x1406
699 #define GL_FLOAT_VEC2_ARB                                                       0x8B50
700 #define GL_FLOAT_VEC3_ARB                                                       0x8B51
701 #define GL_FLOAT_VEC4_ARB                                                       0x8B52
702 #define GL_FLOAT_MAT2_ARB                                                       0x8B5A
703 #define GL_FLOAT_MAT3_ARB                                                       0x8B5B
704 #define GL_FLOAT_MAT4_ARB                                                       0x8B5C
705 #endif
706
707 // GL_ARB_fragment_shader
708 extern int gl_support_fragment_shader;
709 #ifndef GL_FRAGMENT_SHADER_ARB
710 #define GL_FRAGMENT_SHADER_ARB                                          0x8B30
711 #define GL_MAX_FRAGMENT_UNIFORM_COMPONENTS_ARB          0x8B49
712 #define GL_MAX_TEXTURE_COORDS_ARB                                       0x8871
713 #define GL_MAX_TEXTURE_IMAGE_UNITS_ARB                          0x8872
714 #define GL_FRAGMENT_SHADER_DERIVATIVE_HINT_ARB          0x8B8B
715 #endif
716
717 // GL_ARB_shading_language_100
718 extern int gl_support_shading_language_100;
719 #ifndef GL_SHADING_LANGUAGE_VERSION_ARB
720 #define GL_SHADING_LANGUAGE_VERSION_ARB                         0x8B8C
721 #endif
722
723 // GL_EXT_bgr
724 #define GL_BGR                                  0x80E0
725
726 // GL_EXT_bgra
727 #define GL_BGRA                                 0x80E1
728
729 #define DEBUGGL
730
731 #ifdef DEBUGGL
732 #define CHECKGLERROR {if (gl_paranoid.integer){if (gl_printcheckerror.integer) Con_Printf("CHECKGLERROR at %s:%d\n", __FILE__, __LINE__);errornumber = qglGetError();if (errornumber) GL_PrintError(errornumber, __FILE__, __LINE__);}}
733 extern int errornumber;
734 void GL_PrintError(int errornumber, char *filename, int linenumber);
735 #else
736 #define CHECKGLERROR
737 #endif
738
739 #endif
740