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 extern int gl_max_anisotropy;
125 #define GL_TEXTURE_MAX_ANISOTROPY_EXT 0x84FE
126 #define GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT 0x84FF
128 #define GL_ADD 0x0104
129 #define GL_DECAL 0x2101
130 #define GL_MODULATE 0x2100
132 #define GL_REPEAT 0x2901
133 #define GL_CLAMP 0x2900
135 #define GL_POINTS 0x0000
136 #define GL_LINES 0x0001
137 #define GL_LINE_LOOP 0x0002
138 #define GL_LINE_STRIP 0x0003
139 #define GL_TRIANGLES 0x0004
140 #define GL_TRIANGLE_STRIP 0x0005
141 #define GL_TRIANGLE_FAN 0x0006
142 #define GL_QUADS 0x0007
143 #define GL_QUAD_STRIP 0x0008
144 #define GL_POLYGON 0x0009
149 #define GL_BYTE 0x1400
150 #define GL_UNSIGNED_BYTE 0x1401
151 #define GL_SHORT 0x1402
152 #define GL_UNSIGNED_SHORT 0x1403
153 #define GL_INT 0x1404
154 #define GL_UNSIGNED_INT 0x1405
155 #define GL_FLOAT 0x1406
156 #define GL_DOUBLE 0x140A
157 #define GL_2_BYTES 0x1407
158 #define GL_3_BYTES 0x1408
159 #define GL_4_BYTES 0x1409
161 #define GL_VERTEX_ARRAY 0x8074
162 #define GL_NORMAL_ARRAY 0x8075
163 #define GL_COLOR_ARRAY 0x8076
164 //#define GL_INDEX_ARRAY 0x8077
165 #define GL_TEXTURE_COORD_ARRAY 0x8078
166 //#define GL_EDGE_FLAG_ARRAY 0x8079
168 #define GL_FRONT 0x0404
169 #define GL_BACK 0x0405
171 #define GL_VENDOR 0x1F00
172 #define GL_RENDERER 0x1F01
173 #define GL_VERSION 0x1F02
174 #define GL_EXTENSIONS 0x1F03
176 #define GL_NO_ERROR 0x0
177 #define GL_INVALID_VALUE 0x0501
178 #define GL_INVALID_ENUM 0x0500
179 #define GL_INVALID_OPERATION 0x0502
180 #define GL_STACK_OVERFLOW 0x0503
181 #define GL_STACK_UNDERFLOW 0x0504
182 #define GL_OUT_OF_MEMORY 0x0505
184 #define GL_DITHER 0x0BD0
185 #define GL_RGB 0x1907
186 #define GL_RGBA 0x1908
188 #define GL_MAX_TEXTURE_SIZE 0x0D33
190 #define GL_NEVER 0x0200
191 #define GL_LESS 0x0201
192 #define GL_EQUAL 0x0202
193 #define GL_LEQUAL 0x0203
194 #define GL_GREATER 0x0204
195 #define GL_NOTEQUAL 0x0205
196 #define GL_GEQUAL 0x0206
197 #define GL_ALWAYS 0x0207
198 #define GL_DEPTH_TEST 0x0B71
200 #define GL_RED_SCALE 0x0D14
201 #define GL_GREEN_SCALE 0x0D18
202 #define GL_BLUE_SCALE 0x0D1A
203 #define GL_ALPHA_SCALE 0x0D1C
205 #define GL_DEPTH_BUFFER_BIT 0x00000100
206 #define GL_ACCUM_BUFFER_BIT 0x00000200
207 #define GL_STENCIL_BUFFER_BIT 0x00000400
208 #define GL_COLOR_BUFFER_BIT 0x00004000
210 #define GL_STENCIL_TEST 0x0B90
211 #define GL_KEEP 0x1E00
212 #define GL_REPLACE 0x1E01
213 #define GL_INCR 0x1E02
214 #define GL_DECR 0x1E03
216 #define GL_POLYGON_OFFSET_FACTOR 0x8038
217 #define GL_POLYGON_OFFSET_UNITS 0x2A00
218 #define GL_POLYGON_OFFSET_POINT 0x2A01
219 #define GL_POLYGON_OFFSET_LINE 0x2A02
220 #define GL_POLYGON_OFFSET_FILL 0x8037
222 #define GL_POINT_SMOOTH 0x0B10
223 #define GL_LINE_SMOOTH 0x0B20
224 #define GL_POLYGON_SMOOTH 0x0B41
227 // GL_ARB_multitexture
228 extern int gl_textureunits;
229 extern void (GLAPIENTRY *qglMultiTexCoord1f) (GLenum, GLfloat);
230 extern void (GLAPIENTRY *qglMultiTexCoord2f) (GLenum, GLfloat, GLfloat);
231 extern void (GLAPIENTRY *qglMultiTexCoord3f) (GLenum, GLfloat, GLfloat, GLfloat);
232 extern void (GLAPIENTRY *qglMultiTexCoord4f) (GLenum, GLfloat, GLfloat, GLfloat, GLfloat);
233 extern void (GLAPIENTRY *qglActiveTexture) (GLenum);
234 extern void (GLAPIENTRY *qglClientActiveTexture) (GLenum);
235 #ifndef GL_ACTIVE_TEXTURE_ARB
236 #define GL_ACTIVE_TEXTURE_ARB 0x84E0
237 #define GL_CLIENT_ACTIVE_TEXTURE_ARB 0x84E1
238 #define GL_MAX_TEXTURE_UNITS_ARB 0x84E2
239 #define GL_TEXTURE0_ARB 0x84C0
240 #define GL_TEXTURE1_ARB 0x84C1
241 #define GL_TEXTURE2_ARB 0x84C2
242 #define GL_TEXTURE3_ARB 0x84C3
243 #define GL_TEXTURE4_ARB 0x84C4
244 #define GL_TEXTURE5_ARB 0x84C5
245 #define GL_TEXTURE6_ARB 0x84C6
246 #define GL_TEXTURE7_ARB 0x84C7
247 #define GL_TEXTURE8_ARB 0x84C8
248 #define GL_TEXTURE9_ARB 0x84C9
249 #define GL_TEXTURE10_ARB 0x84CA
250 #define GL_TEXTURE11_ARB 0x84CB
251 #define GL_TEXTURE12_ARB 0x84CC
252 #define GL_TEXTURE13_ARB 0x84CD
253 #define GL_TEXTURE14_ARB 0x84CE
254 #define GL_TEXTURE15_ARB 0x84CF
255 #define GL_TEXTURE16_ARB 0x84D0
256 #define GL_TEXTURE17_ARB 0x84D1
257 #define GL_TEXTURE18_ARB 0x84D2
258 #define GL_TEXTURE19_ARB 0x84D3
259 #define GL_TEXTURE20_ARB 0x84D4
260 #define GL_TEXTURE21_ARB 0x84D5
261 #define GL_TEXTURE22_ARB 0x84D6
262 #define GL_TEXTURE23_ARB 0x84D7
263 #define GL_TEXTURE24_ARB 0x84D8
264 #define GL_TEXTURE25_ARB 0x84D9
265 #define GL_TEXTURE26_ARB 0x84DA
266 #define GL_TEXTURE27_ARB 0x84DB
267 #define GL_TEXTURE28_ARB 0x84DC
268 #define GL_TEXTURE29_ARB 0x84DD
269 #define GL_TEXTURE30_ARB 0x84DE
270 #define GL_TEXTURE31_ARB 0x84DF
273 // GL_EXT_compiled_vertex_array
274 extern int gl_supportslockarrays;
275 extern void (GLAPIENTRY *qglLockArraysEXT) (GLint first, GLint count);
276 extern void (GLAPIENTRY *qglUnlockArraysEXT) (void);
278 // GL_ARB_texture_env_combine
279 extern int gl_combine_extension;
280 #ifndef GL_COMBINE_ARB
281 #define GL_COMBINE_ARB 0x8570
282 #define GL_COMBINE_RGB_ARB 0x8571
283 #define GL_COMBINE_ALPHA_ARB 0x8572
284 #define GL_SOURCE0_RGB_ARB 0x8580
285 #define GL_SOURCE1_RGB_ARB 0x8581
286 #define GL_SOURCE2_RGB_ARB 0x8582
287 #define GL_SOURCE0_ALPHA_ARB 0x8588
288 #define GL_SOURCE1_ALPHA_ARB 0x8589
289 #define GL_SOURCE2_ALPHA_ARB 0x858A
290 #define GL_OPERAND0_RGB_ARB 0x8590
291 #define GL_OPERAND1_RGB_ARB 0x8591
292 #define GL_OPERAND2_RGB_ARB 0x8592
293 #define GL_OPERAND0_ALPHA_ARB 0x8598
294 #define GL_OPERAND1_ALPHA_ARB 0x8599
295 #define GL_OPERAND2_ALPHA_ARB 0x859A
296 #define GL_RGB_SCALE_ARB 0x8573
297 #define GL_ADD_SIGNED_ARB 0x8574
298 #define GL_INTERPOLATE_ARB 0x8575
299 #define GL_SUBTRACT_ARB 0x84E7
300 #define GL_CONSTANT_ARB 0x8576
301 #define GL_PRIMARY_COLOR_ARB 0x8577
302 #define GL_PREVIOUS_ARB 0x8578
305 #ifndef GL_MAX_ELEMENTS_VERTICES
306 #define GL_MAX_ELEMENTS_VERTICES 0x80E8
308 #ifndef GL_MAX_ELEMENTS_INDICES
309 #define GL_MAX_ELEMENTS_INDICES 0x80E9
313 extern int gl_textureshader;
314 #ifndef GL_TEXTURE_SHADER_NV
315 #define GL_TEXTURE_SHADER_NV 0x86DE
316 #define GL_SHADER_OPERATION_NV 0x86DF
317 #define GL_OFFSET_TEXTURE_MATRIX_NV 0x86E1
318 #define GL_PREVIOUS_TEXTURE_INPUT_NV 0x86E4
319 #define GL_OFFSET_TEXTURE_2D_NV 0x86E8
320 #define GL_DSDT_NV 0x86F5
321 #define GL_DSDT8_NV 0x8709
324 extern int gl_texture3d;
325 #ifndef GL_TEXTURE_3D
326 #define GL_PACK_SKIP_IMAGES 0x806B
327 #define GL_PACK_IMAGE_HEIGHT 0x806C
328 #define GL_UNPACK_SKIP_IMAGES 0x806D
329 #define GL_UNPACK_IMAGE_HEIGHT 0x806E
330 #define GL_TEXTURE_3D 0x806F
331 #define GL_PROXY_TEXTURE_3D 0x8070
332 #define GL_TEXTURE_DEPTH 0x8071
333 #define GL_TEXTURE_WRAP_R 0x8072
334 #define GL_MAX_3D_TEXTURE_SIZE 0x8073
335 #define GL_TEXTURE_BINDING_3D 0x806A
336 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);
337 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);
338 extern void (GLAPIENTRY *qglCopyTexSubImage3D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLint x, GLint y, GLsizei width, GLsizei height);
341 extern int gl_texturecubemap;
342 #ifndef GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
343 #define GL_NORMAL_MAP_ARB 0x8511
344 #define GL_REFLECTION_MAP_ARB 0x8512
345 #define GL_TEXTURE_CUBE_MAP_ARB 0x8513
346 #define GL_TEXTURE_BINDING_CUBE_MAP_ARB 0x8514
347 #define GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB 0x8515
348 #define GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB 0x8516
349 #define GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB 0x8517
350 #define GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB 0x8518
351 #define GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB 0x8519
352 #define GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB 0x851A
353 #define GL_PROXY_TEXTURE_CUBE_MAP_ARB 0x851B
354 #define GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB 0x851C
357 extern int gl_dot3arb;
358 #ifndef GL_DOT3_RGB_ARB
359 #define GL_DOT3_RGB_ARB 0x86AE
360 #define GL_DOT3_RGBA_ARB 0x86AF
364 // uncomment if this is actually needed by anyone
365 extern int gl_dot3ext;
366 #ifndef GL_DOT3_RGB_EXT
367 #define GL_DOT3_RGB_EXT 0x8740
368 #define GL_DOT3_RGBA_EXT 0x8741
372 #ifndef GL_SCISSOR_TEST
373 #define GL_SCISSOR_TEST 0x0C11
374 #define GL_SCISSOR_BOX 0x0C10
377 // GL_SGIS_texture_edge_clamp or GL_EXT_texture_edge_clamp
378 extern int gl_support_clamptoedge;
379 #ifndef GL_CLAMP_TO_EDGE
380 #define GL_CLAMP_TO_EDGE 0x812F
383 //GL_EXT_stencil_two_side
384 #define GL_STENCIL_TEST_TWO_SIDE_EXT 0x8910
385 #define GL_ACTIVE_STENCIL_FACE_EXT 0x8911
386 extern void (GLAPIENTRY *qglActiveStencilFaceEXT)(GLenum);
387 extern int gl_support_stenciltwoside;
389 extern void (GLAPIENTRY *qglScissor)(GLint x, GLint y, GLsizei width, GLsizei height);
391 extern void (GLAPIENTRY *qglClearColor)(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha);
393 extern void (GLAPIENTRY *qglClear)(GLbitfield mask);
395 extern void (GLAPIENTRY *qglAlphaFunc)(GLenum func, GLclampf ref);
396 extern void (GLAPIENTRY *qglBlendFunc)(GLenum sfactor, GLenum dfactor);
397 extern void (GLAPIENTRY *qglCullFace)(GLenum mode);
399 extern void (GLAPIENTRY *qglDrawBuffer)(GLenum mode);
400 extern void (GLAPIENTRY *qglReadBuffer)(GLenum mode);
401 extern void (GLAPIENTRY *qglEnable)(GLenum cap);
402 extern void (GLAPIENTRY *qglDisable)(GLenum cap);
403 extern GLboolean (GLAPIENTRY *qglIsEnabled)(GLenum cap);
405 extern void (GLAPIENTRY *qglEnableClientState)(GLenum cap);
406 extern void (GLAPIENTRY *qglDisableClientState)(GLenum cap);
408 extern void (GLAPIENTRY *qglGetBooleanv)(GLenum pname, GLboolean *params);
409 extern void (GLAPIENTRY *qglGetDoublev)(GLenum pname, GLdouble *params);
410 extern void (GLAPIENTRY *qglGetFloatv)(GLenum pname, GLfloat *params);
411 extern void (GLAPIENTRY *qglGetIntegerv)(GLenum pname, GLint *params);
413 extern GLenum (GLAPIENTRY *qglGetError)(void);
414 extern const GLubyte* (GLAPIENTRY *qglGetString)(GLenum name);
415 extern void (GLAPIENTRY *qglFinish)(void);
416 extern void (GLAPIENTRY *qglFlush)(void);
418 extern void (GLAPIENTRY *qglClearDepth)(GLclampd depth);
419 extern void (GLAPIENTRY *qglDepthFunc)(GLenum func);
420 extern void (GLAPIENTRY *qglDepthMask)(GLboolean flag);
421 extern void (GLAPIENTRY *qglDepthRange)(GLclampd near_val, GLclampd far_val);
422 extern void (GLAPIENTRY *qglColorMask)(GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha);
424 extern void (GLAPIENTRY *qglDrawRangeElements)(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const GLvoid *indices);
425 extern void (GLAPIENTRY *qglDrawElements)(GLenum mode, GLsizei count, GLenum type, const GLvoid *indices);
426 extern void (GLAPIENTRY *qglVertexPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
427 extern void (GLAPIENTRY *qglNormalPointer)(GLenum type, GLsizei stride, const GLvoid *ptr);
428 extern void (GLAPIENTRY *qglColorPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
429 extern void (GLAPIENTRY *qglTexCoordPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
430 extern void (GLAPIENTRY *qglArrayElement)(GLint i);
432 extern void (GLAPIENTRY *qglColor4f)(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
433 extern void (GLAPIENTRY *qglTexCoord1f)(GLfloat s);
434 extern void (GLAPIENTRY *qglTexCoord2f)(GLfloat s, GLfloat t);
435 extern void (GLAPIENTRY *qglTexCoord3f)(GLfloat s, GLfloat t, GLfloat r);
436 extern void (GLAPIENTRY *qglTexCoord4f)(GLfloat s, GLfloat t, GLfloat r, GLfloat q);
437 extern void (GLAPIENTRY *qglVertex2f)(GLfloat x, GLfloat y);
438 extern void (GLAPIENTRY *qglVertex3f)(GLfloat x, GLfloat y, GLfloat z);
439 extern void (GLAPIENTRY *qglBegin)(GLenum mode);
440 extern void (GLAPIENTRY *qglEnd)(void);
442 extern void (GLAPIENTRY *qglMatrixMode)(GLenum mode);
443 extern void (GLAPIENTRY *qglOrtho)(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble near_val, GLdouble far_val);
444 extern void (GLAPIENTRY *qglFrustum)(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble near_val, GLdouble far_val);
445 extern void (GLAPIENTRY *qglViewport)(GLint x, GLint y, GLsizei width, GLsizei height);
446 extern void (GLAPIENTRY *qglPushMatrix)(void);
447 extern void (GLAPIENTRY *qglPopMatrix)(void);
448 extern void (GLAPIENTRY *qglLoadIdentity)(void);
449 extern void (GLAPIENTRY *qglLoadMatrixd)(const GLdouble *m);
450 extern void (GLAPIENTRY *qglLoadMatrixf)(const GLfloat *m);
451 extern void (GLAPIENTRY *qglMultMatrixd)(const GLdouble *m);
452 extern void (GLAPIENTRY *qglMultMatrixf)(const GLfloat *m);
453 extern void (GLAPIENTRY *qglRotated)(GLdouble angle, GLdouble x, GLdouble y, GLdouble z);
454 extern void (GLAPIENTRY *qglRotatef)(GLfloat angle, GLfloat x, GLfloat y, GLfloat z);
455 extern void (GLAPIENTRY *qglScaled)(GLdouble x, GLdouble y, GLdouble z);
456 extern void (GLAPIENTRY *qglScalef)(GLfloat x, GLfloat y, GLfloat z);
457 extern void (GLAPIENTRY *qglTranslated)(GLdouble x, GLdouble y, GLdouble z);
458 extern void (GLAPIENTRY *qglTranslatef)(GLfloat x, GLfloat y, GLfloat z);
460 extern void (GLAPIENTRY *qglReadPixels)(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLvoid *pixels);
462 extern void (GLAPIENTRY *qglStencilFunc)(GLenum func, GLint ref, GLuint mask);
463 extern void (GLAPIENTRY *qglStencilMask)(GLuint mask);
464 extern void (GLAPIENTRY *qglStencilOp)(GLenum fail, GLenum zfail, GLenum zpass);
465 extern void (GLAPIENTRY *qglClearStencil)(GLint s);
467 extern void (GLAPIENTRY *qglTexEnvf)(GLenum target, GLenum pname, GLfloat param);
468 extern void (GLAPIENTRY *qglTexEnvfv)(GLenum target, GLenum pname, const GLfloat *params);
469 extern void (GLAPIENTRY *qglTexEnvi)(GLenum target, GLenum pname, GLint param);
470 extern void (GLAPIENTRY *qglTexParameterf)(GLenum target, GLenum pname, GLfloat param);
471 extern void (GLAPIENTRY *qglTexParameterfv)(GLenum target, GLenum pname, GLfloat *params);
472 extern void (GLAPIENTRY *qglTexParameteri)(GLenum target, GLenum pname, GLint param);
474 extern void (GLAPIENTRY *qglGenTextures)(GLsizei n, GLuint *textures);
475 extern void (GLAPIENTRY *qglDeleteTextures)(GLsizei n, const GLuint *textures);
476 extern void (GLAPIENTRY *qglBindTexture)(GLenum target, GLuint texture);
477 //extern void (GLAPIENTRY *qglPrioritizeTextures)(GLsizei n, const GLuint *textures, const GLclampf *priorities);
478 //extern GLboolean (GLAPIENTRY *qglAreTexturesResident)(GLsizei n, const GLuint *textures, GLboolean *residences);
479 extern GLboolean (GLAPIENTRY *qglIsTexture)(GLuint texture);
480 extern void (GLAPIENTRY *qglPixelStoref)(GLenum pname, GLfloat param);
481 extern void (GLAPIENTRY *qglPixelStorei)(GLenum pname, GLint param);
483 extern void (GLAPIENTRY *qglTexImage1D)(GLenum target, GLint level, GLint internalFormat, GLsizei width, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
484 extern void (GLAPIENTRY *qglTexImage2D)(GLenum target, GLint level, GLint internalFormat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
485 extern void (GLAPIENTRY *qglTexSubImage1D)(GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLenum type, const GLvoid *pixels);
486 extern void (GLAPIENTRY *qglTexSubImage2D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid *pixels);
487 extern void (GLAPIENTRY *qglCopyTexImage1D)(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLint border);
488 extern void (GLAPIENTRY *qglCopyTexImage2D)(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border);
489 extern void (GLAPIENTRY *qglCopyTexSubImage1D)(GLenum target, GLint level, GLint xoffset, GLint x, GLint y, GLsizei width);
490 extern void (GLAPIENTRY *qglCopyTexSubImage2D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height);
492 extern void (GLAPIENTRY *qglPolygonOffset)(GLfloat factor, GLfloat units);
494 // GL_ARB_shader_objects
495 extern int gl_support_shader_objects;
496 #ifndef GL_PROGRAM_OBJECT_ARB
497 // 1-byte character string
498 typedef char GLcharARB;
499 // 4-byte integer handle to a shader object or program object
500 typedef int GLhandleARB;
502 extern void (GLAPIENTRY *qglDeleteObjectARB)(GLhandleARB obj);
503 extern GLhandleARB (GLAPIENTRY *qglGetHandleARB)(GLenum pname);
504 extern void (GLAPIENTRY *qglDetachObjectARB)(GLhandleARB containerObj, GLhandleARB attachedObj);
505 extern GLhandleARB (GLAPIENTRY *qglCreateShaderObjectARB)(GLenum shaderType);
506 extern void (GLAPIENTRY *qglShaderSourceARB)(GLhandleARB shaderObj, GLsizei count, const GLcharARB **string, const GLint *length);
507 extern void (GLAPIENTRY *qglCompileShaderARB)(GLhandleARB shaderObj);
508 extern GLhandleARB (GLAPIENTRY *qglCreateProgramObjectARB)(void);
509 extern void (GLAPIENTRY *qglAttachObjectARB)(GLhandleARB containerObj, GLhandleARB obj);
510 extern void (GLAPIENTRY *qglLinkProgramARB)(GLhandleARB programObj);
511 extern void (GLAPIENTRY *qglUseProgramObjectARB)(GLhandleARB programObj);
512 extern void (GLAPIENTRY *qglValidateProgramARB)(GLhandleARB programObj);
513 extern void (GLAPIENTRY *qglUniform1fARB)(GLint location, GLfloat v0);
514 extern void (GLAPIENTRY *qglUniform2fARB)(GLint location, GLfloat v0, GLfloat v1);
515 extern void (GLAPIENTRY *qglUniform3fARB)(GLint location, GLfloat v0, GLfloat v1, GLfloat v2);
516 extern void (GLAPIENTRY *qglUniform4fARB)(GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3);
517 extern void (GLAPIENTRY *qglUniform1iARB)(GLint location, GLint v0);
518 extern void (GLAPIENTRY *qglUniform2iARB)(GLint location, GLint v0, GLint v1);
519 extern void (GLAPIENTRY *qglUniform3iARB)(GLint location, GLint v0, GLint v1, GLint v2);
520 extern void (GLAPIENTRY *qglUniform4iARB)(GLint location, GLint v0, GLint v1, GLint v2, GLint v3);
521 extern void (GLAPIENTRY *qglUniform1fvARB)(GLint location, GLsizei count, const GLfloat *value);
522 extern void (GLAPIENTRY *qglUniform2fvARB)(GLint location, GLsizei count, const GLfloat *value);
523 extern void (GLAPIENTRY *qglUniform3fvARB)(GLint location, GLsizei count, const GLfloat *value);
524 extern void (GLAPIENTRY *qglUniform4fvARB)(GLint location, GLsizei count, const GLfloat *value);
525 extern void (GLAPIENTRY *qglUniform1ivARB)(GLint location, GLsizei count, const GLint *value);
526 extern void (GLAPIENTRY *qglUniform2ivARB)(GLint location, GLsizei count, const GLint *value);
527 extern void (GLAPIENTRY *qglUniform3ivARB)(GLint location, GLsizei count, const GLint *value);
528 extern void (GLAPIENTRY *qglUniform4ivARB)(GLint location, GLsizei count, const GLint *value);
529 extern void (GLAPIENTRY *qglUniformMatrix2fvARB)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
530 extern void (GLAPIENTRY *qglUniformMatrix3fvARB)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
531 extern void (GLAPIENTRY *qglUniformMatrix4fvARB)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
532 extern void (GLAPIENTRY *qglGetObjectParameterfvARB)(GLhandleARB obj, GLenum pname, GLfloat *params);
533 extern void (GLAPIENTRY *qglGetObjectParameterivARB)(GLhandleARB obj, GLenum pname, GLint *params);
534 extern void (GLAPIENTRY *qglGetInfoLogARB)(GLhandleARB obj, GLsizei maxLength, GLsizei *length, GLcharARB *infoLog);
535 extern void (GLAPIENTRY *qglGetAttachedObjectsARB)(GLhandleARB containerObj, GLsizei maxCount, GLsizei *count, GLhandleARB *obj);
536 extern GLint (GLAPIENTRY *qglGetUniformLocationARB)(GLhandleARB programObj, const GLcharARB *name);
537 extern void (GLAPIENTRY *qglGetActiveUniformARB)(GLhandleARB programObj, GLuint index, GLsizei maxLength, GLsizei *length, GLint *size, GLenum *type, GLcharARB *name);
538 extern void (GLAPIENTRY *qglGetUniformfvARB)(GLhandleARB programObj, GLint location, GLfloat *params);
539 extern void (GLAPIENTRY *qglGetUniformivARB)(GLhandleARB programObj, GLint location, GLint *params);
540 extern void (GLAPIENTRY *qglGetShaderSourceARB)(GLhandleARB obj, GLsizei maxLength, GLsizei *length, GLcharARB *source);
541 #ifndef GL_PROGRAM_OBJECT_ARB
542 #define GL_PROGRAM_OBJECT_ARB 0x8B40
543 #define GL_OBJECT_TYPE_ARB 0x8B4E
544 #define GL_OBJECT_SUBTYPE_ARB 0x8B4F
545 #define GL_OBJECT_DELETE_STATUS_ARB 0x8B80
546 #define GL_OBJECT_COMPILE_STATUS_ARB 0x8B81
547 #define GL_OBJECT_LINK_STATUS_ARB 0x8B82
548 #define GL_OBJECT_VALIDATE_STATUS_ARB 0x8B83
549 #define GL_OBJECT_INFO_LOG_LENGTH_ARB 0x8B84
550 #define GL_OBJECT_ATTACHED_OBJECTS_ARB 0x8B85
551 #define GL_OBJECT_ACTIVE_UNIFORMS_ARB 0x8B86
552 #define GL_OBJECT_ACTIVE_UNIFORM_MAX_LENGTH_ARB 0x8B87
553 #define GL_OBJECT_SHADER_SOURCE_LENGTH_ARB 0x8B88
554 #define GL_SHADER_OBJECT_ARB 0x8B48
555 #define GL_FLOAT 0x1406
556 #define GL_FLOAT_VEC2_ARB 0x8B50
557 #define GL_FLOAT_VEC3_ARB 0x8B51
558 #define GL_FLOAT_VEC4_ARB 0x8B52
559 #define GL_INT 0x1404
560 #define GL_INT_VEC2_ARB 0x8B53
561 #define GL_INT_VEC3_ARB 0x8B54
562 #define GL_INT_VEC4_ARB 0x8B55
563 #define GL_BOOL_ARB 0x8B56
564 #define GL_BOOL_VEC2_ARB 0x8B57
565 #define GL_BOOL_VEC3_ARB 0x8B58
566 #define GL_BOOL_VEC4_ARB 0x8B59
567 #define GL_FLOAT_MAT2_ARB 0x8B5A
568 #define GL_FLOAT_MAT3_ARB 0x8B5B
569 #define GL_FLOAT_MAT4_ARB 0x8B5C
570 #define GL_SAMPLER_1D_ARB 0x8B5D
571 #define GL_SAMPLER_2D_ARB 0x8B5E
572 #define GL_SAMPLER_3D_ARB 0x8B5F
573 #define GL_SAMPLER_CUBE_ARB 0x8B60
574 #define GL_SAMPLER_1D_SHADOW_ARB 0x8B61
575 #define GL_SAMPLER_2D_SHADOW_ARB 0x8B62
576 #define GL_SAMPLER_2D_RECT_ARB 0x8B63
577 #define GL_SAMPLER_2D_RECT_SHADOW_ARB 0x8B64
580 // GL_ARB_vertex_shader
581 extern int gl_support_vertex_shader;
582 //extern void (GLAPIENTRY *qglVertexAttrib1fARB)(GLuint index, GLfloat v0);
583 //extern void (GLAPIENTRY *qglVertexAttrib1sARB)(GLuint index, GLshort v0);
584 //extern void (GLAPIENTRY *qglVertexAttrib1dARB)(GLuint index, GLdouble v0);
585 //extern void (GLAPIENTRY *qglVertexAttrib2fARB)(GLuint index, GLfloat v0, GLfloat v1);
586 //extern void (GLAPIENTRY *qglVertexAttrib2sARB)(GLuint index, GLshort v0, GLshort v1);
587 //extern void (GLAPIENTRY *qglVertexAttrib2dARB)(GLuint index, GLdouble v0, GLdouble v1);
588 //extern void (GLAPIENTRY *qglVertexAttrib3fARB)(GLuint index, GLfloat v0, GLfloat v1, GLfloat v2);
589 //extern void (GLAPIENTRY *qglVertexAttrib3sARB)(GLuint index, GLshort v0, GLshort v1, GLshort v2);
590 //extern void (GLAPIENTRY *qglVertexAttrib3dARB)(GLuint index, GLdouble v0, GLdouble v1, GLdouble v2);
591 //extern void (GLAPIENTRY *qglVertexAttrib4fARB)(GLuint index, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3);
592 //extern void (GLAPIENTRY *qglVertexAttrib4sARB)(GLuint index, GLshort v0, GLshort v1, GLshort v2, GLshort v3);
593 //extern void (GLAPIENTRY *qglVertexAttrib4dARB)(GLuint index, GLdouble v0, GLdouble v1, GLdouble v2, GLdouble v3);
594 //extern void (GLAPIENTRY *qglVertexAttrib4NubARB)(GLuint index, GLubyte x, GLubyte y, GLubyte z, GLubyte w);
595 //extern void (GLAPIENTRY *qglVertexAttrib1fvARB)(GLuint index, const GLfloat *v);
596 //extern void (GLAPIENTRY *qglVertexAttrib1svARB)(GLuint index, const GLshort *v);
597 //extern void (GLAPIENTRY *qglVertexAttrib1dvARB)(GLuint index, const GLdouble *v);
598 //extern void (GLAPIENTRY *qglVertexAttrib2fvARB)(GLuint index, const GLfloat *v);
599 //extern void (GLAPIENTRY *qglVertexAttrib2svARB)(GLuint index, const GLshort *v);
600 //extern void (GLAPIENTRY *qglVertexAttrib2dvARB)(GLuint index, const GLdouble *v);
601 //extern void (GLAPIENTRY *qglVertexAttrib3fvARB)(GLuint index, const GLfloat *v);
602 //extern void (GLAPIENTRY *qglVertexAttrib3svARB)(GLuint index, const GLshort *v);
603 //extern void (GLAPIENTRY *qglVertexAttrib3dvARB)(GLuint index, const GLdouble *v);
604 //extern void (GLAPIENTRY *qglVertexAttrib4fvARB)(GLuint index, const GLfloat *v);
605 //extern void (GLAPIENTRY *qglVertexAttrib4svARB)(GLuint index, const GLshort *v);
606 //extern void (GLAPIENTRY *qglVertexAttrib4dvARB)(GLuint index, const GLdouble *v);
607 //extern void (GLAPIENTRY *qglVertexAttrib4ivARB)(GLuint index, const GLint *v);
608 //extern void (GLAPIENTRY *qglVertexAttrib4bvARB)(GLuint index, const GLbyte *v);
609 //extern void (GLAPIENTRY *qglVertexAttrib4ubvARB)(GLuint index, const GLubyte *v);
610 //extern void (GLAPIENTRY *qglVertexAttrib4usvARB)(GLuint index, const GLushort *v);
611 //extern void (GLAPIENTRY *qglVertexAttrib4uivARB)(GLuint index, const GLuint *v);
612 //extern void (GLAPIENTRY *qglVertexAttrib4NbvARB)(GLuint index, const GLbyte *v);
613 //extern void (GLAPIENTRY *qglVertexAttrib4NsvARB)(GLuint index, const GLshort *v);
614 //extern void (GLAPIENTRY *qglVertexAttrib4NivARB)(GLuint index, const GLint *v);
615 //extern void (GLAPIENTRY *qglVertexAttrib4NubvARB)(GLuint index, const GLubyte *v);
616 //extern void (GLAPIENTRY *qglVertexAttrib4NusvARB)(GLuint index, const GLushort *v);
617 //extern void (GLAPIENTRY *qglVertexAttrib4NuivARB)(GLuint index, const GLuint *v);
618 extern void (GLAPIENTRY *qglVertexAttribPointerARB)(GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const GLvoid *pointer);
619 extern void (GLAPIENTRY *qglEnableVertexAttribArrayARB)(GLuint index);
620 extern void (GLAPIENTRY *qglDisableVertexAttribArrayARB)(GLuint index);
621 extern void (GLAPIENTRY *qglBindAttribLocationARB)(GLhandleARB programObj, GLuint index, const GLcharARB *name);
622 extern void (GLAPIENTRY *qglGetActiveAttribARB)(GLhandleARB programObj, GLuint index, GLsizei maxLength, GLsizei *length, GLint *size, GLenum *type, GLcharARB *name);
623 extern GLint (GLAPIENTRY *qglGetAttribLocationARB)(GLhandleARB programObj, const GLcharARB *name);
624 //extern void (GLAPIENTRY *qglGetVertexAttribdvARB)(GLuint index, GLenum pname, GLdouble *params);
625 //extern void (GLAPIENTRY *qglGetVertexAttribfvARB)(GLuint index, GLenum pname, GLfloat *params);
626 //extern void (GLAPIENTRY *qglGetVertexAttribivARB)(GLuint index, GLenum pname, GLint *params);
627 //extern void (GLAPIENTRY *qglGetVertexAttribPointervARB)(GLuint index, GLenum pname, GLvoid **pointer);
628 #ifndef GL_VERTEX_SHADER_ARB
629 #define GL_VERTEX_SHADER_ARB 0x8B31
630 #define GL_MAX_VERTEX_UNIFORM_COMPONENTS_ARB 0x8B4A
631 #define GL_MAX_VARYING_FLOATS_ARB 0x8B4B
632 #define GL_MAX_VERTEX_ATTRIBS_ARB 0x8869
633 #define GL_MAX_TEXTURE_IMAGE_UNITS_ARB 0x8872
634 #define GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS_ARB 0x8B4C
635 #define GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS_ARB 0x8B4D
636 #define GL_MAX_TEXTURE_COORDS_ARB 0x8871
637 #define GL_VERTEX_PROGRAM_POINT_SIZE_ARB 0x8642
638 #define GL_VERTEX_PROGRAM_TWO_SIDE_ARB 0x8643
639 #define GL_OBJECT_ACTIVE_ATTRIBUTES_ARB 0x8B89
640 #define GL_OBJECT_ACTIVE_ATTRIBUTE_MAX_LENGTH_ARB 0x8B8A
641 #define GL_VERTEX_ATTRIB_ARRAY_ENABLED_ARB 0x8622
642 #define GL_VERTEX_ATTRIB_ARRAY_SIZE_ARB 0x8623
643 #define GL_VERTEX_ATTRIB_ARRAY_STRIDE_ARB 0x8624
644 #define GL_VERTEX_ATTRIB_ARRAY_TYPE_ARB 0x8625
645 #define GL_VERTEX_ATTRIB_ARRAY_NORMALIZED_ARB 0x886A
646 #define GL_CURRENT_VERTEX_ATTRIB_ARB 0x8626
647 #define GL_VERTEX_ATTRIB_ARRAY_POINTER_ARB 0x8645
648 #define GL_FLOAT 0x1406
649 #define GL_FLOAT_VEC2_ARB 0x8B50
650 #define GL_FLOAT_VEC3_ARB 0x8B51
651 #define GL_FLOAT_VEC4_ARB 0x8B52
652 #define GL_FLOAT_MAT2_ARB 0x8B5A
653 #define GL_FLOAT_MAT3_ARB 0x8B5B
654 #define GL_FLOAT_MAT4_ARB 0x8B5C
657 // GL_ARB_fragment_shader
658 extern int gl_support_fragment_shader;
659 #ifndef GL_FRAGMENT_SHADER_ARB
660 #define GL_FRAGMENT_SHADER_ARB 0x8B30
661 #define GL_MAX_FRAGMENT_UNIFORM_COMPONENTS_ARB 0x8B49
662 #define GL_MAX_TEXTURE_COORDS_ARB 0x8871
663 #define GL_MAX_TEXTURE_IMAGE_UNITS_ARB 0x8872
664 #define GL_FRAGMENT_SHADER_DERIVATIVE_HINT_ARB 0x8B8B
667 // GL_ARB_shading_language_100
668 extern int gl_support_shading_language_100;
669 #ifndef GL_SHADING_LANGUAGE_VERSION_ARB
670 #define GL_SHADING_LANGUAGE_VERSION_ARB 0x8B8C
674 #define GL_BGR 0x80E0
677 #define GL_BGRA 0x80E1
680 extern int gl_support_half_float;
681 // note: this extension has GL_HALF stuff for feeding half floats but I don't use that
686 #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__);}
687 extern int errornumber;
688 void GL_PrintError(int errornumber, char *filename, int linenumber);