added code for enabling GL_LINE_SMOOTH (antialiased lines) in r_showtris mode, but...
[xonotic/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
86 #define GL_ZERO                                 0x0
87 #define GL_ONE                                  0x1
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
101
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
115
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
122
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
127
128 #define GL_ADD                                  0x0104
129 #define GL_DECAL                                0x2101
130 #define GL_MODULATE                             0x2100
131
132 #define GL_REPEAT                               0x2901
133 #define GL_CLAMP                                0x2900
134
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
145
146 #define GL_FALSE                                0x0
147 #define GL_TRUE                                 0x1
148
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
160
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
167
168 #define GL_FRONT                                0x0404
169 #define GL_BACK                                 0x0405
170
171 #define GL_VENDOR                               0x1F00
172 #define GL_RENDERER                             0x1F01
173 #define GL_VERSION                              0x1F02
174 #define GL_EXTENSIONS                           0x1F03
175
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
183
184 #define GL_DITHER                               0x0BD0
185 #define GL_RGB                                  0x1907
186 #define GL_RGBA                                 0x1908
187
188 #define GL_MAX_TEXTURE_SIZE                     0x0D33
189
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
199
200 #define GL_RED_SCALE                            0x0D14
201 #define GL_GREEN_SCALE                          0x0D18
202 #define GL_BLUE_SCALE                           0x0D1A
203 #define GL_ALPHA_SCALE                          0x0D1C
204
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
209
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
215
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
221
222 #define GL_POINT_SMOOTH                         0x0B10
223 #define GL_LINE_SMOOTH                          0x0B20
224 #define GL_POLYGON_SMOOTH                       0x0B41
225 #endif
226
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
271 #endif
272
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);
277
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
303 #endif
304
305 #ifndef GL_MAX_ELEMENTS_VERTICES
306 #define GL_MAX_ELEMENTS_VERTICES                0x80E8
307 #endif
308 #ifndef GL_MAX_ELEMENTS_INDICES
309 #define GL_MAX_ELEMENTS_INDICES                 0x80E9
310 #endif
311
312
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
322 #endif
323
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);
339 #endif
340
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
355 #endif
356
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
361 #endif
362
363 /*
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
369 #endif
370 */
371
372 #ifndef GL_SCISSOR_TEST
373 #define GL_SCISSOR_TEST                         0x0C11
374 #define GL_SCISSOR_BOX                          0x0C10
375 #endif
376
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
381 #endif
382
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;
388
389 extern void (GLAPIENTRY *qglScissor)(GLint x, GLint y, GLsizei width, GLsizei height);
390
391 extern void (GLAPIENTRY *qglClearColor)(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha);
392
393 extern void (GLAPIENTRY *qglClear)(GLbitfield mask);
394
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);
398
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);
404
405 extern void (GLAPIENTRY *qglEnableClientState)(GLenum cap);
406 extern void (GLAPIENTRY *qglDisableClientState)(GLenum cap);
407
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);
412
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);
417
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);
423
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);
431
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);
441
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);
459
460 extern void (GLAPIENTRY *qglReadPixels)(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLvoid *pixels);
461
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);
466
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);
473
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);
482
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);
491
492 extern void (GLAPIENTRY *qglPolygonOffset)(GLfloat factor, GLfloat units);
493
494 #if WIN32
495 extern int (WINAPI *qwglChoosePixelFormat)(HDC, CONST PIXELFORMATDESCRIPTOR *);
496 extern int (WINAPI *qwglDescribePixelFormat)(HDC, int, UINT, LPPIXELFORMATDESCRIPTOR);
497 //extern int (WINAPI *qwglGetPixelFormat)(HDC);
498 extern BOOL (WINAPI *qwglSetPixelFormat)(HDC, int, CONST PIXELFORMATDESCRIPTOR *);
499 extern BOOL (WINAPI *qwglSwapBuffers)(HDC);
500 extern HGLRC (WINAPI *qwglCreateContext)(HDC);
501 extern BOOL (WINAPI *qwglDeleteContext)(HGLRC);
502 extern PROC (WINAPI *qwglGetProcAddress)(LPCSTR);
503 extern BOOL (WINAPI *qwglMakeCurrent)(HDC, HGLRC);
504 extern BOOL (WINAPI *qwglSwapIntervalEXT)(int interval);
505 #endif
506
507 // GL_ARB_shader_objects
508 extern int gl_support_shader_objects;
509 #ifndef GL_PROGRAM_OBJECT_ARB
510 // 1-byte character string
511 typedef char GLcharARB;
512 // 4-byte integer handle to a shader object or program object
513 typedef int GLhandleARB;
514 #endif
515 extern void (GLAPIENTRY *qglDeleteObjectARB)(GLhandleARB obj);
516 extern GLhandleARB (GLAPIENTRY *qglGetHandleARB)(GLenum pname);
517 extern void (GLAPIENTRY *qglDetachObjectARB)(GLhandleARB containerObj, GLhandleARB attachedObj);
518 extern GLhandleARB (GLAPIENTRY *qglCreateShaderObjectARB)(GLenum shaderType);
519 extern void (GLAPIENTRY *qglShaderSourceARB)(GLhandleARB shaderObj, GLsizei count, const GLcharARB **string, const GLint *length);
520 extern void (GLAPIENTRY *qglCompileShaderARB)(GLhandleARB shaderObj);
521 extern GLhandleARB (GLAPIENTRY *qglCreateProgramObjectARB)(void);
522 extern void (GLAPIENTRY *qglAttachObjectARB)(GLhandleARB containerObj, GLhandleARB obj);
523 extern void (GLAPIENTRY *qglLinkProgramARB)(GLhandleARB programObj);
524 extern void (GLAPIENTRY *qglUseProgramObjectARB)(GLhandleARB programObj);
525 extern void (GLAPIENTRY *qglValidateProgramARB)(GLhandleARB programObj);
526 extern void (GLAPIENTRY *qglUniform1fARB)(GLint location, GLfloat v0);
527 extern void (GLAPIENTRY *qglUniform2fARB)(GLint location, GLfloat v0, GLfloat v1);
528 extern void (GLAPIENTRY *qglUniform3fARB)(GLint location, GLfloat v0, GLfloat v1, GLfloat v2);
529 extern void (GLAPIENTRY *qglUniform4fARB)(GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3);
530 extern void (GLAPIENTRY *qglUniform1iARB)(GLint location, GLint v0);
531 extern void (GLAPIENTRY *qglUniform2iARB)(GLint location, GLint v0, GLint v1);
532 extern void (GLAPIENTRY *qglUniform3iARB)(GLint location, GLint v0, GLint v1, GLint v2);
533 extern void (GLAPIENTRY *qglUniform4iARB)(GLint location, GLint v0, GLint v1, GLint v2, GLint v3);
534 extern void (GLAPIENTRY *qglUniform1fvARB)(GLint location, GLsizei count, const GLfloat *value);
535 extern void (GLAPIENTRY *qglUniform2fvARB)(GLint location, GLsizei count, const GLfloat *value);
536 extern void (GLAPIENTRY *qglUniform3fvARB)(GLint location, GLsizei count, const GLfloat *value);
537 extern void (GLAPIENTRY *qglUniform4fvARB)(GLint location, GLsizei count, const GLfloat *value);
538 extern void (GLAPIENTRY *qglUniform1ivARB)(GLint location, GLsizei count, const GLint *value);
539 extern void (GLAPIENTRY *qglUniform2ivARB)(GLint location, GLsizei count, const GLint *value);
540 extern void (GLAPIENTRY *qglUniform3ivARB)(GLint location, GLsizei count, const GLint *value);
541 extern void (GLAPIENTRY *qglUniform4ivARB)(GLint location, GLsizei count, const GLint *value);
542 extern void (GLAPIENTRY *qglUniformMatrix2fvARB)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
543 extern void (GLAPIENTRY *qglUniformMatrix3fvARB)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
544 extern void (GLAPIENTRY *qglUniformMatrix4fvARB)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
545 extern void (GLAPIENTRY *qglGetObjectParameterfvARB)(GLhandleARB obj, GLenum pname, GLfloat *params);
546 extern void (GLAPIENTRY *qglGetObjectParameterivARB)(GLhandleARB obj, GLenum pname, GLint *params);
547 extern void (GLAPIENTRY *qglGetInfoLogARB)(GLhandleARB obj, GLsizei maxLength, GLsizei *length, GLcharARB *infoLog);
548 extern void (GLAPIENTRY *qglGetAttachedObjectsARB)(GLhandleARB containerObj, GLsizei maxCount, GLsizei *count, GLhandleARB *obj);
549 extern GLint (GLAPIENTRY *qglGetUniformLocationARB)(GLhandleARB programObj, const GLcharARB *name);
550 extern void (GLAPIENTRY *qglGetActiveUniformARB)(GLhandleARB programObj, GLuint index, GLsizei maxLength, GLsizei *length, GLint *size, GLenum *type, GLcharARB *name);
551 extern void (GLAPIENTRY *qglGetUniformfvARB)(GLhandleARB programObj, GLint location, GLfloat *params);
552 extern void (GLAPIENTRY *qglGetUniformivARB)(GLhandleARB programObj, GLint location, GLint *params);
553 extern void (GLAPIENTRY *qglGetShaderSourceARB)(GLhandleARB obj, GLsizei maxLength, GLsizei *length, GLcharARB *source);
554 #ifndef GL_PROGRAM_OBJECT_ARB
555 #define GL_PROGRAM_OBJECT_ARB                                   0x8B40
556 #define GL_OBJECT_TYPE_ARB                                              0x8B4E
557 #define GL_OBJECT_SUBTYPE_ARB                                   0x8B4F
558 #define GL_OBJECT_DELETE_STATUS_ARB                             0x8B80
559 #define GL_OBJECT_COMPILE_STATUS_ARB                    0x8B81
560 #define GL_OBJECT_LINK_STATUS_ARB                               0x8B82
561 #define GL_OBJECT_VALIDATE_STATUS_ARB                   0x8B83
562 #define GL_OBJECT_INFO_LOG_LENGTH_ARB                   0x8B84
563 #define GL_OBJECT_ATTACHED_OBJECTS_ARB                  0x8B85
564 #define GL_OBJECT_ACTIVE_UNIFORMS_ARB                   0x8B86
565 #define GL_OBJECT_ACTIVE_UNIFORM_MAX_LENGTH_ARB 0x8B87
566 #define GL_OBJECT_SHADER_SOURCE_LENGTH_ARB              0x8B88
567 #define GL_SHADER_OBJECT_ARB                                    0x8B48
568 #define GL_FLOAT                                                                0x1406
569 #define GL_FLOAT_VEC2_ARB                                               0x8B50
570 #define GL_FLOAT_VEC3_ARB                                               0x8B51
571 #define GL_FLOAT_VEC4_ARB                                               0x8B52
572 #define GL_INT                                                                  0x1404
573 #define GL_INT_VEC2_ARB                                                 0x8B53
574 #define GL_INT_VEC3_ARB                                                 0x8B54
575 #define GL_INT_VEC4_ARB                                                 0x8B55
576 #define GL_BOOL_ARB                                                             0x8B56
577 #define GL_BOOL_VEC2_ARB                                                0x8B57
578 #define GL_BOOL_VEC3_ARB                                                0x8B58
579 #define GL_BOOL_VEC4_ARB                                                0x8B59
580 #define GL_FLOAT_MAT2_ARB                                               0x8B5A
581 #define GL_FLOAT_MAT3_ARB                                               0x8B5B
582 #define GL_FLOAT_MAT4_ARB                                               0x8B5C
583 #define GL_SAMPLER_1D_ARB                                               0x8B5D
584 #define GL_SAMPLER_2D_ARB                                               0x8B5E
585 #define GL_SAMPLER_3D_ARB                                               0x8B5F
586 #define GL_SAMPLER_CUBE_ARB                                             0x8B60
587 #define GL_SAMPLER_1D_SHADOW_ARB                                0x8B61
588 #define GL_SAMPLER_2D_SHADOW_ARB                                0x8B62
589 #define GL_SAMPLER_2D_RECT_ARB                                  0x8B63
590 #define GL_SAMPLER_2D_RECT_SHADOW_ARB                   0x8B64
591 #endif
592
593 // GL_ARB_vertex_shader
594 extern int gl_support_vertex_shader;
595 //extern void (GLAPIENTRY *qglVertexAttrib1fARB)(GLuint index, GLfloat v0);
596 //extern void (GLAPIENTRY *qglVertexAttrib1sARB)(GLuint index, GLshort v0);
597 //extern void (GLAPIENTRY *qglVertexAttrib1dARB)(GLuint index, GLdouble v0);
598 //extern void (GLAPIENTRY *qglVertexAttrib2fARB)(GLuint index, GLfloat v0, GLfloat v1);
599 //extern void (GLAPIENTRY *qglVertexAttrib2sARB)(GLuint index, GLshort v0, GLshort v1);
600 //extern void (GLAPIENTRY *qglVertexAttrib2dARB)(GLuint index, GLdouble v0, GLdouble v1);
601 //extern void (GLAPIENTRY *qglVertexAttrib3fARB)(GLuint index, GLfloat v0, GLfloat v1, GLfloat v2);
602 //extern void (GLAPIENTRY *qglVertexAttrib3sARB)(GLuint index, GLshort v0, GLshort v1, GLshort v2);
603 //extern void (GLAPIENTRY *qglVertexAttrib3dARB)(GLuint index, GLdouble v0, GLdouble v1, GLdouble v2);
604 //extern void (GLAPIENTRY *qglVertexAttrib4fARB)(GLuint index, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3);
605 //extern void (GLAPIENTRY *qglVertexAttrib4sARB)(GLuint index, GLshort v0, GLshort v1, GLshort v2, GLshort v3);
606 //extern void (GLAPIENTRY *qglVertexAttrib4dARB)(GLuint index, GLdouble v0, GLdouble v1, GLdouble v2, GLdouble v3);
607 //extern void (GLAPIENTRY *qglVertexAttrib4NubARB)(GLuint index, GLubyte x, GLubyte y, GLubyte z, GLubyte w);
608 //extern void (GLAPIENTRY *qglVertexAttrib1fvARB)(GLuint index, const GLfloat *v);
609 //extern void (GLAPIENTRY *qglVertexAttrib1svARB)(GLuint index, const GLshort *v);
610 //extern void (GLAPIENTRY *qglVertexAttrib1dvARB)(GLuint index, const GLdouble *v);
611 //extern void (GLAPIENTRY *qglVertexAttrib2fvARB)(GLuint index, const GLfloat *v);
612 //extern void (GLAPIENTRY *qglVertexAttrib2svARB)(GLuint index, const GLshort *v);
613 //extern void (GLAPIENTRY *qglVertexAttrib2dvARB)(GLuint index, const GLdouble *v);
614 //extern void (GLAPIENTRY *qglVertexAttrib3fvARB)(GLuint index, const GLfloat *v);
615 //extern void (GLAPIENTRY *qglVertexAttrib3svARB)(GLuint index, const GLshort *v);
616 //extern void (GLAPIENTRY *qglVertexAttrib3dvARB)(GLuint index, const GLdouble *v);
617 //extern void (GLAPIENTRY *qglVertexAttrib4fvARB)(GLuint index, const GLfloat *v);
618 //extern void (GLAPIENTRY *qglVertexAttrib4svARB)(GLuint index, const GLshort *v);
619 //extern void (GLAPIENTRY *qglVertexAttrib4dvARB)(GLuint index, const GLdouble *v);
620 //extern void (GLAPIENTRY *qglVertexAttrib4ivARB)(GLuint index, const GLint *v);
621 //extern void (GLAPIENTRY *qglVertexAttrib4bvARB)(GLuint index, const GLbyte *v);
622 //extern void (GLAPIENTRY *qglVertexAttrib4ubvARB)(GLuint index, const GLubyte *v);
623 //extern void (GLAPIENTRY *qglVertexAttrib4usvARB)(GLuint index, const GLushort *v);
624 //extern void (GLAPIENTRY *qglVertexAttrib4uivARB)(GLuint index, const GLuint *v);
625 //extern void (GLAPIENTRY *qglVertexAttrib4NbvARB)(GLuint index, const GLbyte *v);
626 //extern void (GLAPIENTRY *qglVertexAttrib4NsvARB)(GLuint index, const GLshort *v);
627 //extern void (GLAPIENTRY *qglVertexAttrib4NivARB)(GLuint index, const GLint *v);
628 //extern void (GLAPIENTRY *qglVertexAttrib4NubvARB)(GLuint index, const GLubyte *v);
629 //extern void (GLAPIENTRY *qglVertexAttrib4NusvARB)(GLuint index, const GLushort *v);
630 //extern void (GLAPIENTRY *qglVertexAttrib4NuivARB)(GLuint index, const GLuint *v);
631 extern void (GLAPIENTRY *qglVertexAttribPointerARB)(GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const GLvoid *pointer);
632 extern void (GLAPIENTRY *qglEnableVertexAttribArrayARB)(GLuint index);
633 extern void (GLAPIENTRY *qglDisableVertexAttribArrayARB)(GLuint index);
634 extern void (GLAPIENTRY *qglBindAttribLocationARB)(GLhandleARB programObj, GLuint index, const GLcharARB *name);
635 extern void (GLAPIENTRY *qglGetActiveAttribARB)(GLhandleARB programObj, GLuint index, GLsizei maxLength, GLsizei *length, GLint *size, GLenum *type, GLcharARB *name);
636 extern GLint (GLAPIENTRY *qglGetAttribLocationARB)(GLhandleARB programObj, const GLcharARB *name);
637 //extern void (GLAPIENTRY *qglGetVertexAttribdvARB)(GLuint index, GLenum pname, GLdouble *params);
638 //extern void (GLAPIENTRY *qglGetVertexAttribfvARB)(GLuint index, GLenum pname, GLfloat *params);
639 //extern void (GLAPIENTRY *qglGetVertexAttribivARB)(GLuint index, GLenum pname, GLint *params);
640 //extern void (GLAPIENTRY *qglGetVertexAttribPointervARB)(GLuint index, GLenum pname, GLvoid **pointer);
641 #ifndef GL_VERTEX_SHADER_ARB
642 #define GL_VERTEX_SHADER_ARB                                            0x8B31
643 #define GL_MAX_VERTEX_UNIFORM_COMPONENTS_ARB            0x8B4A
644 #define GL_MAX_VARYING_FLOATS_ARB                                       0x8B4B
645 #define GL_MAX_VERTEX_ATTRIBS_ARB                                       0x8869
646 #define GL_MAX_TEXTURE_IMAGE_UNITS_ARB                          0x8872
647 #define GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS_ARB           0x8B4C
648 #define GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS_ARB         0x8B4D
649 #define GL_MAX_TEXTURE_COORDS_ARB                                       0x8871
650 #define GL_VERTEX_PROGRAM_POINT_SIZE_ARB                        0x8642
651 #define GL_VERTEX_PROGRAM_TWO_SIDE_ARB                          0x8643
652 #define GL_OBJECT_ACTIVE_ATTRIBUTES_ARB                         0x8B89
653 #define GL_OBJECT_ACTIVE_ATTRIBUTE_MAX_LENGTH_ARB       0x8B8A
654 #define GL_VERTEX_ATTRIB_ARRAY_ENABLED_ARB                      0x8622
655 #define GL_VERTEX_ATTRIB_ARRAY_SIZE_ARB                         0x8623
656 #define GL_VERTEX_ATTRIB_ARRAY_STRIDE_ARB                       0x8624
657 #define GL_VERTEX_ATTRIB_ARRAY_TYPE_ARB                         0x8625
658 #define GL_VERTEX_ATTRIB_ARRAY_NORMALIZED_ARB           0x886A
659 #define GL_CURRENT_VERTEX_ATTRIB_ARB                            0x8626
660 #define GL_VERTEX_ATTRIB_ARRAY_POINTER_ARB                      0x8645
661 #define GL_FLOAT                                                                        0x1406
662 #define GL_FLOAT_VEC2_ARB                                                       0x8B50
663 #define GL_FLOAT_VEC3_ARB                                                       0x8B51
664 #define GL_FLOAT_VEC4_ARB                                                       0x8B52
665 #define GL_FLOAT_MAT2_ARB                                                       0x8B5A
666 #define GL_FLOAT_MAT3_ARB                                                       0x8B5B
667 #define GL_FLOAT_MAT4_ARB                                                       0x8B5C
668 #endif
669
670 // GL_ARB_fragment_shader
671 extern int gl_support_fragment_shader;
672 #ifndef GL_FRAGMENT_SHADER_ARB
673 #define GL_FRAGMENT_SHADER_ARB                                          0x8B30
674 #define GL_MAX_FRAGMENT_UNIFORM_COMPONENTS_ARB          0x8B49
675 #define GL_MAX_TEXTURE_COORDS_ARB                                       0x8871
676 #define GL_MAX_TEXTURE_IMAGE_UNITS_ARB                          0x8872
677 #define GL_FRAGMENT_SHADER_DERIVATIVE_HINT_ARB          0x8B8B
678 #endif
679
680 // GL_ARB_shading_language_100
681 extern int gl_support_shading_language_100;
682 #ifndef GL_SHADING_LANGUAGE_VERSION_ARB
683 #define GL_SHADING_LANGUAGE_VERSION_ARB                         0x8B8C
684 #endif
685
686 // GL_EXT_bgr
687 #define GL_BGR                                  0x80E0
688
689 // GL_EXT_bgra
690 #define GL_BGRA                                 0x80E1
691
692 #define DEBUGGL
693
694 #ifdef DEBUGGL
695 #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__);}
696 extern int errornumber;
697 void GL_PrintError(int errornumber, char *filename, int linenumber);
698 #else
699 #define CHECKGLERROR
700 #endif
701
702 #endif
703