2 Copyright (C) 1996-1997 Id Software, Inc.
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.
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.
13 See the GNU General Public License for more details.
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.
24 // disable data conversion warnings
27 #pragma warning(disable : 4244) // LordHavoc: MSVC++ 4 x86, double/float
28 #pragma warning(disable : 4305) // LordHavoc: MSVC++ 6 x86, double/float
32 //====================================================
39 // for platforms (wgl) that do not use GLAPIENTRY
41 #define GLAPIENTRY APIENTRY
45 typedef unsigned int GLenum;
46 typedef unsigned char GLboolean;
47 typedef unsigned int GLbitfield;
50 typedef signed char GLbyte;
52 typedef short GLshort;
56 typedef unsigned char GLubyte;
58 typedef unsigned short GLushort;
60 typedef unsigned int GLuint;
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;
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
80 #define GL_DEPTH_TEST 0x0B71
82 #define GL_CULL_FACE 0x0B44
84 #define GL_BLEND 0x0BE2
88 #define GL_SRC_COLOR 0x0300
89 #define GL_ONE_MINUS_SRC_COLOR 0x0301
90 #define GL_DST_COLOR 0x0306
91 #define GL_ONE_MINUS_DST_COLOR 0x0307
92 #define GL_SRC_ALPHA 0x0302
93 #define GL_ONE_MINUS_SRC_ALPHA 0x0303
94 #define GL_DST_ALPHA 0x0304
95 #define GL_ONE_MINUS_DST_ALPHA 0x0305
96 #define GL_SRC_ALPHA_SATURATE 0x0308
97 #define GL_CONSTANT_COLOR 0x8001
98 #define GL_ONE_MINUS_CONSTANT_COLOR 0x8002
99 #define GL_CONSTANT_ALPHA 0x8003
100 #define GL_ONE_MINUS_CONSTANT_ALPHA 0x8004
102 #define GL_TEXTURE_ENV 0x2300
103 #define GL_TEXTURE_ENV_MODE 0x2200
104 #define GL_TEXTURE_1D 0x0DE0
105 #define GL_TEXTURE_2D 0x0DE1
106 #define GL_TEXTURE_WRAP_S 0x2802
107 #define GL_TEXTURE_WRAP_T 0x2803
108 #define GL_TEXTURE_WRAP_R 0x8072
109 #define GL_TEXTURE_BORDER_COLOR 0x1004
110 #define GL_TEXTURE_MAG_FILTER 0x2800
111 #define GL_TEXTURE_MIN_FILTER 0x2801
112 #define GL_UNPACK_ALIGNMENT 0x0CF5
113 #define GL_TEXTURE_BINDING_1D 0x8068
114 #define GL_TEXTURE_BINDING_2D 0x8069
116 #define GL_NEAREST 0x2600
117 #define GL_LINEAR 0x2601
118 #define GL_NEAREST_MIPMAP_NEAREST 0x2700
119 #define GL_NEAREST_MIPMAP_LINEAR 0x2702
120 #define GL_LINEAR_MIPMAP_NEAREST 0x2701
121 #define GL_LINEAR_MIPMAP_LINEAR 0x2703
123 extern int gl_support_anisotropy;
124 #define GL_TEXTURE_MAX_ANISOTROPY_EXT 0x84FE
125 #define GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT 0x84FF
127 #define GL_ADD 0x0104
128 #define GL_DECAL 0x2101
129 #define GL_MODULATE 0x2100
131 #define GL_REPEAT 0x2901
132 #define GL_CLAMP 0x2900
134 #define GL_POINTS 0x0000
135 #define GL_LINES 0x0001
136 #define GL_LINE_LOOP 0x0002
137 #define GL_LINE_STRIP 0x0003
138 #define GL_TRIANGLES 0x0004
139 #define GL_TRIANGLE_STRIP 0x0005
140 #define GL_TRIANGLE_FAN 0x0006
141 #define GL_QUADS 0x0007
142 #define GL_QUAD_STRIP 0x0008
143 #define GL_POLYGON 0x0009
148 #define GL_BYTE 0x1400
149 #define GL_UNSIGNED_BYTE 0x1401
150 #define GL_SHORT 0x1402
151 #define GL_UNSIGNED_SHORT 0x1403
152 #define GL_INT 0x1404
153 #define GL_UNSIGNED_INT 0x1405
154 #define GL_FLOAT 0x1406
155 #define GL_DOUBLE 0x140A
156 #define GL_2_BYTES 0x1407
157 #define GL_3_BYTES 0x1408
158 #define GL_4_BYTES 0x1409
160 #define GL_VERTEX_ARRAY 0x8074
161 #define GL_NORMAL_ARRAY 0x8075
162 #define GL_COLOR_ARRAY 0x8076
163 //#define GL_INDEX_ARRAY 0x8077
164 #define GL_TEXTURE_COORD_ARRAY 0x8078
165 //#define GL_EDGE_FLAG_ARRAY 0x8079
167 #define GL_FRONT 0x0404
168 #define GL_BACK 0x0405
170 #define GL_VENDOR 0x1F00
171 #define GL_RENDERER 0x1F01
172 #define GL_VERSION 0x1F02
173 #define GL_EXTENSIONS 0x1F03
175 #define GL_NO_ERROR 0x0
176 #define GL_INVALID_VALUE 0x0501
177 #define GL_INVALID_ENUM 0x0500
178 #define GL_INVALID_OPERATION 0x0502
179 #define GL_STACK_OVERFLOW 0x0503
180 #define GL_STACK_UNDERFLOW 0x0504
181 #define GL_OUT_OF_MEMORY 0x0505
183 #define GL_DITHER 0x0BD0
184 #define GL_RGB 0x1907
185 #define GL_RGBA 0x1908
187 #define GL_MAX_TEXTURE_SIZE 0x0D33
189 #define GL_NEVER 0x0200
190 #define GL_LESS 0x0201
191 #define GL_EQUAL 0x0202
192 #define GL_LEQUAL 0x0203
193 #define GL_GREATER 0x0204
194 #define GL_NOTEQUAL 0x0205
195 #define GL_GEQUAL 0x0206
196 #define GL_ALWAYS 0x0207
197 #define GL_DEPTH_TEST 0x0B71
199 #define GL_RED_SCALE 0x0D14
200 #define GL_GREEN_SCALE 0x0D18
201 #define GL_BLUE_SCALE 0x0D1A
202 #define GL_ALPHA_SCALE 0x0D1C
204 #define GL_DEPTH_BUFFER_BIT 0x00000100
205 #define GL_ACCUM_BUFFER_BIT 0x00000200
206 #define GL_STENCIL_BUFFER_BIT 0x00000400
207 #define GL_COLOR_BUFFER_BIT 0x00004000
209 #define GL_STENCIL_TEST 0x0B90
210 #define GL_KEEP 0x1E00
211 #define GL_REPLACE 0x1E01
212 #define GL_INCR 0x1E02
213 #define GL_DECR 0x1E03
215 #define GL_POLYGON_OFFSET_FACTOR 0x8038
216 #define GL_POLYGON_OFFSET_UNITS 0x2A00
217 #define GL_POLYGON_OFFSET_POINT 0x2A01
218 #define GL_POLYGON_OFFSET_LINE 0x2A02
219 #define GL_POLYGON_OFFSET_FILL 0x8037
222 // GL_ARB_multitexture
223 extern int gl_textureunits;
224 extern void (GLAPIENTRY *qglMultiTexCoord2f) (GLenum, GLfloat, GLfloat);
225 extern void (GLAPIENTRY *qglMultiTexCoord3f) (GLenum, GLfloat, GLfloat, GLfloat);
226 extern void (GLAPIENTRY *qglActiveTexture) (GLenum);
227 extern void (GLAPIENTRY *qglClientActiveTexture) (GLenum);
228 #ifndef GL_ACTIVE_TEXTURE_ARB
229 #define GL_ACTIVE_TEXTURE_ARB 0x84E0
230 #define GL_CLIENT_ACTIVE_TEXTURE_ARB 0x84E1
231 #define GL_MAX_TEXTURE_UNITS_ARB 0x84E2
232 #define GL_TEXTURE0_ARB 0x84C0
233 #define GL_TEXTURE1_ARB 0x84C1
234 #define GL_TEXTURE2_ARB 0x84C2
235 #define GL_TEXTURE3_ARB 0x84C3
236 #define GL_TEXTURE4_ARB 0x84C4
237 #define GL_TEXTURE5_ARB 0x84C5
238 #define GL_TEXTURE6_ARB 0x84C6
239 #define GL_TEXTURE7_ARB 0x84C7
240 #define GL_TEXTURE8_ARB 0x84C8
241 #define GL_TEXTURE9_ARB 0x84C9
242 #define GL_TEXTURE10_ARB 0x84CA
243 #define GL_TEXTURE11_ARB 0x84CB
244 #define GL_TEXTURE12_ARB 0x84CC
245 #define GL_TEXTURE13_ARB 0x84CD
246 #define GL_TEXTURE14_ARB 0x84CE
247 #define GL_TEXTURE15_ARB 0x84CF
248 #define GL_TEXTURE16_ARB 0x84D0
249 #define GL_TEXTURE17_ARB 0x84D1
250 #define GL_TEXTURE18_ARB 0x84D2
251 #define GL_TEXTURE19_ARB 0x84D3
252 #define GL_TEXTURE20_ARB 0x84D4
253 #define GL_TEXTURE21_ARB 0x84D5
254 #define GL_TEXTURE22_ARB 0x84D6
255 #define GL_TEXTURE23_ARB 0x84D7
256 #define GL_TEXTURE24_ARB 0x84D8
257 #define GL_TEXTURE25_ARB 0x84D9
258 #define GL_TEXTURE26_ARB 0x84DA
259 #define GL_TEXTURE27_ARB 0x84DB
260 #define GL_TEXTURE28_ARB 0x84DC
261 #define GL_TEXTURE29_ARB 0x84DD
262 #define GL_TEXTURE30_ARB 0x84DE
263 #define GL_TEXTURE31_ARB 0x84DF
266 // GL_EXT_compiled_vertex_array
267 extern int gl_supportslockarrays;
268 extern void (GLAPIENTRY *qglLockArraysEXT) (GLint first, GLint count);
269 extern void (GLAPIENTRY *qglUnlockArraysEXT) (void);
271 // GL_ARB_texture_env_combine
272 extern int gl_combine_extension;
273 #ifndef GL_COMBINE_ARB
274 #define GL_COMBINE_ARB 0x8570
275 #define GL_COMBINE_RGB_ARB 0x8571
276 #define GL_COMBINE_ALPHA_ARB 0x8572
277 #define GL_SOURCE0_RGB_ARB 0x8580
278 #define GL_SOURCE1_RGB_ARB 0x8581
279 #define GL_SOURCE2_RGB_ARB 0x8582
280 #define GL_SOURCE0_ALPHA_ARB 0x8588
281 #define GL_SOURCE1_ALPHA_ARB 0x8589
282 #define GL_SOURCE2_ALPHA_ARB 0x858A
283 #define GL_OPERAND0_RGB_ARB 0x8590
284 #define GL_OPERAND1_RGB_ARB 0x8591
285 #define GL_OPERAND2_RGB_ARB 0x8592
286 #define GL_OPERAND0_ALPHA_ARB 0x8598
287 #define GL_OPERAND1_ALPHA_ARB 0x8599
288 #define GL_OPERAND2_ALPHA_ARB 0x859A
289 #define GL_RGB_SCALE_ARB 0x8573
290 #define GL_ADD_SIGNED_ARB 0x8574
291 #define GL_INTERPOLATE_ARB 0x8575
292 #define GL_SUBTRACT_ARB 0x84E7
293 #define GL_CONSTANT_ARB 0x8576
294 #define GL_PRIMARY_COLOR_ARB 0x8577
295 #define GL_PREVIOUS_ARB 0x8578
298 #ifndef GL_MAX_ELEMENTS_VERTICES
299 #define GL_MAX_ELEMENTS_VERTICES 0x80E8
301 #ifndef GL_MAX_ELEMENTS_INDICES
302 #define GL_MAX_ELEMENTS_INDICES 0x80E9
305 extern cvar_t gl_combine;
307 extern int gl_textureshader;
308 #ifndef GL_TEXTURE_SHADER_NV
309 #define GL_TEXTURE_SHADER_NV 0x86DE
310 #define GL_SHADER_OPERATION_NV 0x86DF
311 #define GL_OFFSET_TEXTURE_MATRIX_NV 0x86E1
312 #define GL_PREVIOUS_TEXTURE_INPUT_NV 0x86E4
313 #define GL_OFFSET_TEXTURE_2D_NV 0x86E8
314 #define GL_DSDT_NV 0x86F5
315 #define GL_DSDT8_NV 0x8709
318 extern int gl_texture3d;
319 #ifndef GL_TEXTURE_3D
320 #define GL_PACK_SKIP_IMAGES 0x806B
321 #define GL_PACK_IMAGE_HEIGHT 0x806C
322 #define GL_UNPACK_SKIP_IMAGES 0x806D
323 #define GL_UNPACK_IMAGE_HEIGHT 0x806E
324 #define GL_TEXTURE_3D 0x806F
325 #define GL_PROXY_TEXTURE_3D 0x8070
326 #define GL_TEXTURE_DEPTH 0x8071
327 #define GL_TEXTURE_WRAP_R 0x8072
328 #define GL_MAX_3D_TEXTURE_SIZE 0x8073
329 #define GL_TEXTURE_BINDING_3D 0x806A
330 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);
331 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);
332 extern void (GLAPIENTRY *qglCopyTexSubImage3D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLint x, GLint y, GLsizei width, GLsizei height);
335 extern int gl_texturecubemap;
336 #ifndef GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
337 #define GL_NORMAL_MAP_ARB 0x8511
338 #define GL_REFLECTION_MAP_ARB 0x8512
339 #define GL_TEXTURE_CUBE_MAP_ARB 0x8513
340 #define GL_TEXTURE_BINDING_CUBE_MAP_ARB 0x8514
341 #define GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB 0x8515
342 #define GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB 0x8516
343 #define GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB 0x8517
344 #define GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB 0x8518
345 #define GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB 0x8519
346 #define GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB 0x851A
347 #define GL_PROXY_TEXTURE_CUBE_MAP_ARB 0x851B
348 #define GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB 0x851C
351 extern int gl_dot3arb;
352 #ifndef GL_DOT3_RGB_ARB
353 #define GL_DOT3_RGB_ARB 0x86AE
354 #define GL_DOT3_RGBA_ARB 0x86AF
358 // uncomment if this is actually needed by anyone
359 extern int gl_dot3ext;
360 #ifndef GL_DOT3_RGB_EXT
361 #define GL_DOT3_RGB_EXT 0x8740
362 #define GL_DOT3_RGBA_EXT 0x8741
366 #ifndef GL_SCISSOR_TEST
367 #define GL_SCISSOR_TEST 0x0C11
368 #define GL_SCISSOR_BOX 0x0C10
371 // GL_SGIS_texture_edge_clamp or GL_EXT_texture_edge_clamp
372 extern int gl_support_clamptoedge;
373 #ifndef GL_CLAMP_TO_EDGE
374 #define GL_CLAMP_TO_EDGE 0x812F
377 //GL_NV_vertex_array_range
378 extern GLvoid *(GLAPIENTRY *qglAllocateMemoryNV)(GLsizei size, GLfloat readFrequency, GLfloat writeFrequency, GLfloat priority);
379 extern GLvoid (GLAPIENTRY *qglFreeMemoryNV)(GLvoid *pointer);
380 extern GLvoid (GLAPIENTRY *qglVertexArrayRangeNV)(GLsizei length, GLvoid *pointer);
381 extern GLvoid (GLAPIENTRY *qglFlushVertexArrayRangeNV)(GLvoid);
382 #define GL_VERTEX_ARRAY_RANGE_NV 0x851D
383 #define GL_VERTEX_ARRAY_RANGE_LENGTH_NV 0x851E
384 #define GL_MAX_VERTEX_ARRAY_RANGE_ELEMENT_NV 0x8520
385 #define GL_VERTEX_ARRAY_RANGE_POINTER_NV 0x8521
386 extern int gl_support_var;
388 //GL_NV_vertex_array_range2
389 #define GL_VERTEX_ARRAY_RANGE_WITHOUT_FLUSH_NV 0x8533
390 extern int gl_support_var2;
392 //GL_EXT_stencil_two_side
393 #define GL_STENCIL_TEST_TWO_SIDE_EXT 0x8910
394 #define GL_ACTIVE_STENCIL_FACE_EXT 0x8911
395 extern void (GLAPIENTRY *qglActiveStencilFaceEXT)(GLenum);
396 extern int gl_support_stenciltwoside;
398 extern void (GLAPIENTRY *qglScissor)(GLint x, GLint y, GLsizei width, GLsizei height);
400 extern void (GLAPIENTRY *qglClearColor)(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha);
402 extern void (GLAPIENTRY *qglClear)(GLbitfield mask);
404 //extern void (GLAPIENTRY *qglAlphaFunc)(GLenum func, GLclampf ref);
405 extern void (GLAPIENTRY *qglBlendFunc)(GLenum sfactor, GLenum dfactor);
406 extern void (GLAPIENTRY *qglCullFace)(GLenum mode);
408 //extern void (GLAPIENTRY *qglDrawBuffer)(GLenum mode);
409 //extern void (GLAPIENTRY *qglReadBuffer)(GLenum mode);
410 extern void (GLAPIENTRY *qglEnable)(GLenum cap);
411 extern void (GLAPIENTRY *qglDisable)(GLenum cap);
412 extern GLboolean (GLAPIENTRY *qglIsEnabled)(GLenum cap);
414 extern void (GLAPIENTRY *qglEnableClientState)(GLenum cap);
415 extern void (GLAPIENTRY *qglDisableClientState)(GLenum cap);
417 //extern void (GLAPIENTRY *qglGetBooleanv)(GLenum pname, GLboolean *params);
418 //extern void (GLAPIENTRY *qglGetDoublev)(GLenum pname, GLdouble *params);
419 //extern void (GLAPIENTRY *qglGetFloatv)(GLenum pname, GLfloat *params);
420 extern void (GLAPIENTRY *qglGetIntegerv)(GLenum pname, GLint *params);
422 extern GLenum (GLAPIENTRY *qglGetError)(void);
423 extern const GLubyte* (GLAPIENTRY *qglGetString)(GLenum name);
424 extern void (GLAPIENTRY *qglFinish)(void);
425 extern void (GLAPIENTRY *qglFlush)(void);
427 extern void (GLAPIENTRY *qglClearDepth)(GLclampd depth);
428 extern void (GLAPIENTRY *qglDepthFunc)(GLenum func);
429 extern void (GLAPIENTRY *qglDepthMask)(GLboolean flag);
430 extern void (GLAPIENTRY *qglDepthRange)(GLclampd near_val, GLclampd far_val);
431 extern void (GLAPIENTRY *qglColorMask)(GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha);
433 extern void (GLAPIENTRY *qglDrawRangeElements)(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const GLvoid *indices);
434 extern void (GLAPIENTRY *qglDrawElements)(GLenum mode, GLsizei count, GLenum type, const GLvoid *indices);
435 extern void (GLAPIENTRY *qglVertexPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
436 extern void (GLAPIENTRY *qglNormalPointer)(GLenum type, GLsizei stride, const GLvoid *ptr);
437 extern void (GLAPIENTRY *qglColorPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
438 extern void (GLAPIENTRY *qglTexCoordPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
439 extern void (GLAPIENTRY *qglArrayElement)(GLint i);
441 extern void (GLAPIENTRY *qglColor4f)(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
442 extern void (GLAPIENTRY *qglTexCoord2f)(GLfloat s, GLfloat t);
443 extern void (GLAPIENTRY *qglTexCoord3f)(GLfloat s, GLfloat t, GLfloat r);
444 extern void (GLAPIENTRY *qglVertex2f)(GLfloat x, GLfloat y);
445 extern void (GLAPIENTRY *qglVertex3f)(GLfloat x, GLfloat y, GLfloat z);
446 extern void (GLAPIENTRY *qglBegin)(GLenum mode);
447 extern void (GLAPIENTRY *qglEnd)(void);
449 extern void (GLAPIENTRY *qglMatrixMode)(GLenum mode);
450 extern void (GLAPIENTRY *qglOrtho)(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble near_val, GLdouble far_val);
451 extern void (GLAPIENTRY *qglFrustum)(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble near_val, GLdouble far_val);
452 extern void (GLAPIENTRY *qglViewport)(GLint x, GLint y, GLsizei width, GLsizei height);
453 //extern void (GLAPIENTRY *qglPushMatrix)(void);
454 //extern void (GLAPIENTRY *qglPopMatrix)(void);
455 extern void (GLAPIENTRY *qglLoadIdentity)(void);
456 //extern void (GLAPIENTRY *qglLoadMatrixd)(const GLdouble *m);
457 extern void (GLAPIENTRY *qglLoadMatrixf)(const GLfloat *m);
458 //extern void (GLAPIENTRY *qglMultMatrixd)(const GLdouble *m);
459 //extern void (GLAPIENTRY *qglMultMatrixf)(const GLfloat *m);
460 //extern void (GLAPIENTRY *qglRotated)(GLdouble angle, GLdouble x, GLdouble y, GLdouble z);
461 //extern void (GLAPIENTRY *qglRotatef)(GLfloat angle, GLfloat x, GLfloat y, GLfloat z);
462 //extern void (GLAPIENTRY *qglScaled)(GLdouble x, GLdouble y, GLdouble z);
463 //extern void (GLAPIENTRY *qglScalef)(GLfloat x, GLfloat y, GLfloat z);
464 //extern void (GLAPIENTRY *qglTranslated)(GLdouble x, GLdouble y, GLdouble z);
465 //extern void (GLAPIENTRY *qglTranslatef)(GLfloat x, GLfloat y, GLfloat z);
467 extern void (GLAPIENTRY *qglReadPixels)(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLvoid *pixels);
469 extern void (GLAPIENTRY *qglStencilFunc)(GLenum func, GLint ref, GLuint mask);
470 extern void (GLAPIENTRY *qglStencilMask)(GLuint mask);
471 extern void (GLAPIENTRY *qglStencilOp)(GLenum fail, GLenum zfail, GLenum zpass);
472 extern void (GLAPIENTRY *qglClearStencil)(GLint s);
474 //extern void (GLAPIENTRY *qglTexEnvf)(GLenum target, GLenum pname, GLfloat param);
475 extern void (GLAPIENTRY *qglTexEnvfv)(GLenum target, GLenum pname, const GLfloat *params);
476 extern void (GLAPIENTRY *qglTexEnvi)(GLenum target, GLenum pname, GLint param);
477 extern void (GLAPIENTRY *qglTexParameterf)(GLenum target, GLenum pname, GLfloat param);
478 //extern void (GLAPIENTRY *qglTexParameterfv)(GLenum target, GLenum pname, GLfloat *params);
479 extern void (GLAPIENTRY *qglTexParameteri)(GLenum target, GLenum pname, GLint param);
481 extern void (GLAPIENTRY *qglGenTextures)(GLsizei n, GLuint *textures);
482 extern void (GLAPIENTRY *qglDeleteTextures)(GLsizei n, const GLuint *textures);
483 extern void (GLAPIENTRY *qglBindTexture)(GLenum target, GLuint texture);
484 //extern void (GLAPIENTRY *qglPrioritizeTextures)(GLsizei n, const GLuint *textures, const GLclampf *priorities);
485 //extern GLboolean (GLAPIENTRY *qglAreTexturesResident)(GLsizei n, const GLuint *textures, GLboolean *residences);
486 extern GLboolean (GLAPIENTRY *qglIsTexture)(GLuint texture);
487 //extern void (GLAPIENTRY *qglPixelStoref)(GLenum pname, GLfloat param);
488 extern void (GLAPIENTRY *qglPixelStorei)(GLenum pname, GLint param);
490 extern void (GLAPIENTRY *qglTexImage1D)(GLenum target, GLint level, GLint internalFormat, GLsizei width, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
491 extern void (GLAPIENTRY *qglTexImage2D)(GLenum target, GLint level, GLint internalFormat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
492 extern void (GLAPIENTRY *qglTexSubImage1D)(GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLenum type, const GLvoid *pixels);
493 extern void (GLAPIENTRY *qglTexSubImage2D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid *pixels);
494 extern void (GLAPIENTRY *qglCopyTexImage1D)(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLint border);
495 extern void (GLAPIENTRY *qglCopyTexImage2D)(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border);
496 extern void (GLAPIENTRY *qglCopyTexSubImage1D)(GLenum target, GLint level, GLint xoffset, GLint x, GLint y, GLsizei width);
497 extern void (GLAPIENTRY *qglCopyTexSubImage2D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height);
499 extern void (GLAPIENTRY *qglPolygonOffset)(GLfloat factor, GLfloat units);
502 extern int (WINAPI *qwglChoosePixelFormat)(HDC, CONST PIXELFORMATDESCRIPTOR *);
503 extern int (WINAPI *qwglDescribePixelFormat)(HDC, int, UINT, LPPIXELFORMATDESCRIPTOR);
504 //extern int (WINAPI *qwglGetPixelFormat)(HDC);
505 extern BOOL (WINAPI *qwglSetPixelFormat)(HDC, int, CONST PIXELFORMATDESCRIPTOR *);
506 extern BOOL (WINAPI *qwglSwapBuffers)(HDC);
507 extern HGLRC (WINAPI *qwglCreateContext)(HDC);
508 extern BOOL (WINAPI *qwglDeleteContext)(HGLRC);
509 extern PROC (WINAPI *qwglGetProcAddress)(LPCSTR);
510 extern BOOL (WINAPI *qwglMakeCurrent)(HDC, HGLRC);
511 extern BOOL (WINAPI *qwglSwapIntervalEXT)(int interval);
517 #define CHECKGLERROR {if (gl_printcheckerror.integer) Con_Printf("CHECKGLERROR at %s:%d\n", __FILE__, __LINE__);if (gl_paranoid.integer && (errornumber = qglGetError())) GL_PrintError(errornumber, __FILE__, __LINE__);}
518 extern int errornumber;
519 void GL_PrintError(int errornumber, char *filename, int linenumber);