vertex arrays renamed to varray_ and exposed to rest of engine
[divverent/darkplaces.git] / glquake.h
1 /*
2 Copyright (C) 1996-1997 Id Software, Inc.
3
4 This program is free software; you can redistribute it and/or
5 modify it under the terms of the GNU General Public License
6 as published by the Free Software Foundation; either version 2
7 of the License, or (at your option) any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
12
13 See the GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
18
19 */
20
21 #ifndef GLQUAKE_H
22 #define GLQUAKE_H
23
24 // disable data conversion warnings
25
26 #ifdef _MSC_VER
27 #pragma warning(disable : 4244)     // LordHavoc: MSVC++ 4 x86, double/float
28 #pragma warning(disable : 4305)         // LordHavoc: MSVC++ 6 x86, double/float
29 #pragma warning(disable : 4018)         // LordHavoc: MSVC++ 4 x86, signed/unsigned mismatch
30 #endif
31
32 #ifdef _WIN32
33 #include <windows.h>
34 #define strcasecmp stricmp
35 #define strncasecmp strnicmp
36 #endif
37
38 //#include <GL/gl.h>
39
40 extern qboolean isG200;
41 extern qboolean isRagePro;
42
43 //====================================================
44
45 extern const char *gl_vendor;
46 extern const char *gl_renderer;
47 extern const char *gl_version;
48 extern const char *gl_extensions;
49
50 void GL_OpenLibrary(void);
51 void GL_CloseLibrary(void);
52 void *GL_GetProcAddress(char *name);
53
54 // wgl uses APIENTRY
55 #ifndef APIENTRY
56 #define APIENTRY
57 #endif
58
59 // for platforms (wgl) that do not use GLAPIENTRY
60 #ifndef GLAPIENTRY
61 #define GLAPIENTRY APIENTRY
62 #endif
63
64 #ifndef GL_PROJECTION
65 typedef unsigned int GLenum;
66 typedef unsigned char GLboolean;
67 typedef unsigned int GLbitfield;
68 typedef void GLvoid;
69 // 1-byte signed
70 typedef signed char GLbyte;
71 // 2-byte signed
72 typedef short GLshort;
73 // 4-byte signed
74 typedef int GLint;
75 // 1-byte unsigned
76 typedef unsigned char GLubyte;
77 // 2-byte unsigned
78 typedef unsigned short GLushort;
79 // 4-byte unsigned
80 typedef unsigned int GLuint;
81 // 4-byte signed
82 typedef int GLsizei;
83 // single precision float
84 typedef float GLfloat;
85 // single precision float in [0,1]
86 typedef float GLclampf;
87 // double precision float
88 typedef double GLdouble;
89 // double precision float in [0,1]
90 typedef double GLclampd;
91
92 #define GL_MODELVIEW                            0x1700
93 #define GL_PROJECTION                           0x1701
94 #define GL_TEXTURE                              0x1702
95
96 #define GL_DEPTH_TEST                           0x0B71
97
98 #define GL_CULL_FACE                            0x0B44
99
100 #define GL_BLEND                                0x0BE2
101
102 #define GL_ZERO                                 0x0
103 #define GL_ONE                                  0x1
104 #define GL_SRC_COLOR                            0x0300
105 #define GL_ONE_MINUS_SRC_COLOR                  0x0301
106 #define GL_DST_COLOR                            0x0306
107 #define GL_ONE_MINUS_DST_COLOR                  0x0307
108 #define GL_SRC_ALPHA                            0x0302
109 #define GL_ONE_MINUS_SRC_ALPHA                  0x0303
110 #define GL_DST_ALPHA                            0x0304
111 #define GL_ONE_MINUS_DST_ALPHA                  0x0305
112 #define GL_SRC_ALPHA_SATURATE                   0x0308
113 #define GL_CONSTANT_COLOR                       0x8001
114 #define GL_ONE_MINUS_CONSTANT_COLOR             0x8002
115 #define GL_CONSTANT_ALPHA                       0x8003
116 #define GL_ONE_MINUS_CONSTANT_ALPHA             0x8004
117
118 #define GL_TEXTURE_ENV                          0x2300
119 #define GL_TEXTURE_ENV_MODE                     0x2200
120 #define GL_TEXTURE_1D                           0x0DE0
121 #define GL_TEXTURE_2D                           0x0DE1
122 #define GL_TEXTURE_WRAP_S                       0x2802
123 #define GL_TEXTURE_WRAP_T                       0x2803
124 #define GL_TEXTURE_MAG_FILTER                   0x2800
125 #define GL_TEXTURE_MIN_FILTER                   0x2801
126
127 #define GL_NEAREST                              0x2600
128 #define GL_LINEAR                               0x2601
129 #define GL_NEAREST_MIPMAP_NEAREST               0x2700
130 #define GL_NEAREST_MIPMAP_LINEAR                0x2702
131 #define GL_LINEAR_MIPMAP_NEAREST                0x2701
132 #define GL_LINEAR_MIPMAP_LINEAR                 0x2703
133
134 #define GL_DECAL                                0x2101
135 #define GL_MODULATE                             0x2100
136
137 #define GL_REPEAT                               0x2901
138 #define GL_CLAMP                                0x2900
139
140 #define GL_TRIANGLES                            0x0004
141
142 #define GL_FALSE                                0x0
143 #define GL_TRUE                                 0x1
144
145 #define GL_BYTE                                 0x1400
146 #define GL_UNSIGNED_BYTE                        0x1401
147 #define GL_SHORT                                0x1402
148 #define GL_UNSIGNED_SHORT                       0x1403
149 #define GL_INT                                  0x1404
150 #define GL_UNSIGNED_INT                         0x1405
151 #define GL_FLOAT                                0x1406
152 #define GL_DOUBLE                               0x140A
153 #define GL_2_BYTES                              0x1407
154 #define GL_3_BYTES                              0x1408
155 #define GL_4_BYTES                              0x1409
156
157 #define GL_VERTEX_ARRAY                         0x8074
158 #define GL_NORMAL_ARRAY                         0x8075
159 #define GL_COLOR_ARRAY                          0x8076
160 //#define GL_INDEX_ARRAY                                0x8077
161 #define GL_TEXTURE_COORD_ARRAY                  0x8078
162 //#define GL_EDGE_FLAG_ARRAY                    0x8079
163
164 #define GL_FRONT                                0x0404
165 #define GL_BACK                                 0x0405
166
167 #define GL_VENDOR                               0x1F00
168 #define GL_RENDERER                             0x1F01
169 #define GL_VERSION                              0x1F02
170 #define GL_EXTENSIONS                           0x1F03
171
172 #define GL_NO_ERROR                             0x0
173 #define GL_INVALID_VALUE                        0x0501
174 #define GL_INVALID_ENUM                         0x0500
175 #define GL_INVALID_OPERATION                    0x0502
176 #define GL_STACK_OVERFLOW                       0x0503
177 #define GL_STACK_UNDERFLOW                      0x0504
178 #define GL_OUT_OF_MEMORY                        0x0505
179
180 #define GL_DITHER                               0x0BD0
181 #define GL_RGB                                  0x1907
182 #define GL_RGBA                                 0x1908
183
184 #define GL_MAX_TEXTURE_SIZE                     0x0D33
185
186 #define GL_NEVER                                0x0200
187 #define GL_LESS                                 0x0201
188 #define GL_EQUAL                                0x0202
189 #define GL_LEQUAL                               0x0203
190 #define GL_GREATER                              0x0204
191 #define GL_NOTEQUAL                             0x0205
192 #define GL_GEQUAL                               0x0206
193 #define GL_ALWAYS                               0x0207
194 #define GL_DEPTH_TEST                           0x0B71
195
196 #define GL_RED_SCALE                            0x0D14
197 #define GL_GREEN_SCALE                          0x0D18
198 #define GL_BLUE_SCALE                           0x0D1A
199 #define GL_ALPHA_SCALE                          0x0D1C
200
201 #define GL_DEPTH_BUFFER_BIT                     0x00000100
202 #define GL_ACCUM_BUFFER_BIT                     0x00000200
203 #define GL_STENCIL_BUFFER_BIT                   0x00000400
204 #define GL_COLOR_BUFFER_BIT                     0x00004000
205 #endif
206
207 // GL_ARB_multitexture
208 extern int gl_textureunits;
209 extern void (GLAPIENTRY *qglMultiTexCoord2f) (GLenum, GLfloat, GLfloat);
210 extern void (GLAPIENTRY *qglActiveTexture) (GLenum);
211 extern void (GLAPIENTRY *qglClientActiveTexture) (GLenum);
212 #ifndef GL_ACTIVE_TEXTURE_ARB
213 #define GL_ACTIVE_TEXTURE_ARB                   0x84E0
214 #define GL_CLIENT_ACTIVE_TEXTURE_ARB    0x84E1
215 #define GL_MAX_TEXTURE_UNITS_ARB                0x84E2
216 #define GL_TEXTURE0_ARB                                 0x84C0
217 #define GL_TEXTURE1_ARB                                 0x84C1
218 #define GL_TEXTURE2_ARB                                 0x84C2
219 #define GL_TEXTURE3_ARB                                 0x84C3
220 #define GL_TEXTURE4_ARB                                 0x84C4
221 #define GL_TEXTURE5_ARB                                 0x84C5
222 #define GL_TEXTURE6_ARB                                 0x84C6
223 #define GL_TEXTURE7_ARB                                 0x84C7
224 #define GL_TEXTURE8_ARB                                 0x84C8
225 #define GL_TEXTURE9_ARB                                 0x84C9
226 #define GL_TEXTURE10_ARB                                0x84CA
227 #define GL_TEXTURE11_ARB                                0x84CB
228 #define GL_TEXTURE12_ARB                                0x84CC
229 #define GL_TEXTURE13_ARB                                0x84CD
230 #define GL_TEXTURE14_ARB                                0x84CE
231 #define GL_TEXTURE15_ARB                                0x84CF
232 #define GL_TEXTURE16_ARB                                0x84D0
233 #define GL_TEXTURE17_ARB                                0x84D1
234 #define GL_TEXTURE18_ARB                                0x84D2
235 #define GL_TEXTURE19_ARB                                0x84D3
236 #define GL_TEXTURE20_ARB                                0x84D4
237 #define GL_TEXTURE21_ARB                                0x84D5
238 #define GL_TEXTURE22_ARB                                0x84D6
239 #define GL_TEXTURE23_ARB                                0x84D7
240 #define GL_TEXTURE24_ARB                                0x84D8
241 #define GL_TEXTURE25_ARB                                0x84D9
242 #define GL_TEXTURE26_ARB                                0x84DA
243 #define GL_TEXTURE27_ARB                                0x84DB
244 #define GL_TEXTURE28_ARB                                0x84DC
245 #define GL_TEXTURE29_ARB                                0x84DD
246 #define GL_TEXTURE30_ARB                                0x84DE
247 #define GL_TEXTURE31_ARB                                0x84DF
248 #endif
249
250 // GL_EXT_compiled_vertex_array
251 extern int gl_supportslockarrays;
252 extern void (GLAPIENTRY *qglLockArraysEXT) (GLint first, GLint count);
253 extern void (GLAPIENTRY *qglUnlockArraysEXT) (void);
254
255 // GL_ARB_texture_env_combine
256 extern int gl_combine_extension;
257 #ifndef GL_COMBINE_ARB
258 #define GL_COMBINE_ARB                                  0x8570
259 #define GL_COMBINE_RGB_ARB                              0x8571
260 #define GL_COMBINE_ALPHA_ARB                    0x8572
261 #define GL_SOURCE0_RGB_ARB                              0x8580
262 #define GL_SOURCE1_RGB_ARB                              0x8581
263 #define GL_SOURCE2_RGB_ARB                              0x8582
264 #define GL_SOURCE0_ALPHA_ARB                    0x8588
265 #define GL_SOURCE1_ALPHA_ARB                    0x8589
266 #define GL_SOURCE2_ALPHA_ARB                    0x858A
267 #define GL_OPERAND0_RGB_ARB                             0x8590
268 #define GL_OPERAND1_RGB_ARB                             0x8591
269 #define GL_OPERAND2_RGB_ARB                             0x8592
270 #define GL_OPERAND0_ALPHA_ARB                   0x8598
271 #define GL_OPERAND1_ALPHA_ARB                   0x8599
272 #define GL_OPERAND2_ALPHA_ARB                   0x859A
273 #define GL_RGB_SCALE_ARB                                0x8573
274 #define GL_ADD_SIGNED_ARB                               0x8574
275 #define GL_INTERPOLATE_ARB                              0x8575
276 #define GL_SUBTRACT_ARB                                 0x84E7
277 #define GL_CONSTANT_ARB                                 0x8576
278 #define GL_PRIMARY_COLOR_ARB                    0x8577
279 #define GL_PREVIOUS_ARB                                 0x8578
280 #endif
281
282 #ifndef GL_MAX_ELEMENTS_VERTICES
283 #define GL_MAX_ELEMENTS_VERTICES                0x80E8
284 #endif
285 #ifndef GL_MAX_ELEMENTS_INDICES
286 #define GL_MAX_ELEMENTS_INDICES                 0x80E9
287 #endif
288
289 extern cvar_t gl_combine;
290
291 extern void (GLAPIENTRY *qglClearColor)(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha);
292
293 extern void (GLAPIENTRY *qglClear)(GLbitfield mask);
294
295 //extern void (GLAPIENTRY *qglAlphaFunc)(GLenum func, GLclampf ref);
296 extern void (GLAPIENTRY *qglBlendFunc)(GLenum sfactor, GLenum dfactor);
297 extern void (GLAPIENTRY *qglCullFace)(GLenum mode);
298
299 extern void (GLAPIENTRY *qglDrawBuffer)(GLenum mode);
300 extern void (GLAPIENTRY *qglReadBuffer)(GLenum mode);
301 extern void (GLAPIENTRY *qglEnable)(GLenum cap);
302 extern void (GLAPIENTRY *qglDisable)(GLenum cap);
303 //extern GLboolean GLAPIENTRY *qglIsEnabled)(GLenum cap);
304
305 extern void (GLAPIENTRY *qglEnableClientState)(GLenum cap);
306 extern void (GLAPIENTRY *qglDisableClientState)(GLenum cap);
307
308 //extern void (GLAPIENTRY *qglGetBooleanv)(GLenum pname, GLboolean *params);
309 //extern void (GLAPIENTRY *qglGetDoublev)(GLenum pname, GLdouble *params);
310 //extern void (GLAPIENTRY *qglGetFloatv)(GLenum pname, GLfloat *params);
311 extern void (GLAPIENTRY *qglGetIntegerv)(GLenum pname, GLint *params);
312
313 extern GLenum (GLAPIENTRY *qglGetError)(void);
314 extern const GLubyte* (GLAPIENTRY *qglGetString)(GLenum name);
315 extern void (GLAPIENTRY *qglFinish)(void);
316 extern void (GLAPIENTRY *qglFlush)(void);
317
318 extern void (GLAPIENTRY *qglClearDepth)(GLclampd depth);
319 extern void (GLAPIENTRY *qglDepthFunc)(GLenum func);
320 extern void (GLAPIENTRY *qglDepthMask)(GLboolean flag);
321 extern void (GLAPIENTRY *qglDepthRange)(GLclampd near_val, GLclampd far_val);
322
323 extern void (GLAPIENTRY *qglDrawRangeElements)(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const GLvoid *indices);
324 extern void (GLAPIENTRY *qglDrawElements)(GLenum mode, GLsizei count, GLenum type, const GLvoid *indices);
325 extern void (GLAPIENTRY *qglVertexPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
326 //extern void (GLAPIENTRY *qglNormalPointer)(GLenum type, GLsizei stride, const GLvoid *ptr);
327 extern void (GLAPIENTRY *qglColorPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
328 extern void (GLAPIENTRY *qglTexCoordPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
329 extern void (GLAPIENTRY *qglArrayElement)(GLint i);
330
331 extern void (GLAPIENTRY *qglColor4ub)(GLubyte red, GLubyte green, GLubyte blue, GLubyte alpha);
332 extern void (GLAPIENTRY *qglTexCoord2f)(GLfloat s, GLfloat t);
333 extern void (GLAPIENTRY *qglVertex2f)(GLfloat x, GLfloat y);
334 extern void (GLAPIENTRY *qglVertex3f)(GLfloat x, GLfloat y, GLfloat z);
335 extern void (GLAPIENTRY *qglBegin)(GLenum mode);
336 extern void (GLAPIENTRY *qglEnd)(void);
337
338 extern void (GLAPIENTRY *qglMatrixMode)(GLenum mode);
339 extern void (GLAPIENTRY *qglOrtho)(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble near_val, GLdouble far_val);
340 extern void (GLAPIENTRY *qglFrustum)(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble near_val, GLdouble far_val);
341 extern void (GLAPIENTRY *qglViewport)(GLint x, GLint y, GLsizei width, GLsizei height);
342 //extern void (GLAPIENTRY *qglPushMatrix)(void);
343 //extern void (GLAPIENTRY *qglPopMatrix)(void);
344 extern void (GLAPIENTRY *qglLoadIdentity)(void);
345 //extern void (GLAPIENTRY *qglLoadMatrixd)(const GLdouble *m);
346 //extern void (GLAPIENTRY *qglLoadMatrixf)(const GLfloat *m);
347 //extern void (GLAPIENTRY *qglMultMatrixd)(const GLdouble *m);
348 //extern void (GLAPIENTRY *qglMultMatrixf)(const GLfloat *m);
349 //extern void (GLAPIENTRY *qglRotated)(GLdouble angle, GLdouble x, GLdouble y, GLdouble z);
350 extern void (GLAPIENTRY *qglRotatef)(GLfloat angle, GLfloat x, GLfloat y, GLfloat z);
351 //extern void (GLAPIENTRY *qglScaled)(GLdouble x, GLdouble y, GLdouble z);
352 //extern void (GLAPIENTRY *qglScalef)(GLfloat x, GLfloat y, GLfloat z);
353 //extern void (GLAPIENTRY *qglTranslated)(GLdouble x, GLdouble y, GLdouble z);
354 extern void (GLAPIENTRY *qglTranslatef)(GLfloat x, GLfloat y, GLfloat z);
355
356 extern void (GLAPIENTRY *qglReadPixels)(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLvoid *pixels);
357
358 //extern void (GLAPIENTRY *qglStencilFunc)(GLenum func, GLint ref, GLuint mask);
359 //extern void (GLAPIENTRY *qglStencilMask)(GLuint mask);
360 //extern void (GLAPIENTRY *qglStencilOp)(GLenum fail, GLenum zfail, GLenum zpass);
361 //extern void (GLAPIENTRY *qglClearStencil)(GLint s);
362
363 //extern void (GLAPIENTRY *qglTexEnvf)(GLenum target, GLenum pname, GLfloat param);
364 extern void (GLAPIENTRY *qglTexEnvi)(GLenum target, GLenum pname, GLint param);
365
366 //extern void (GLAPIENTRY *qglTexParameterf)(GLenum target, GLenum pname, GLfloat param);
367 extern void (GLAPIENTRY *qglTexParameteri)(GLenum target, GLenum pname, GLint param);
368
369 extern void (GLAPIENTRY *qglBindTexture)(GLenum target, GLuint texture);
370 extern void (GLAPIENTRY *qglTexImage2D)(GLenum target, GLint level, GLint internalFormat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const GLvoid *pixels );
371 extern void (GLAPIENTRY *qglTexSubImage2D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid *pixels);
372 extern void (GLAPIENTRY *qglDeleteTextures)(GLsizei n, const GLuint *textures);
373
374 #if WIN32
375 extern int (WINAPI *qwglChoosePixelFormat)(HDC, CONST PIXELFORMATDESCRIPTOR *);
376 extern int (WINAPI *qwglDescribePixelFormat)(HDC, int, UINT, LPPIXELFORMATDESCRIPTOR);
377 //extern int (WINAPI *qwglGetPixelFormat)(HDC);
378 extern BOOL (WINAPI *qwglSetPixelFormat)(HDC, int, CONST PIXELFORMATDESCRIPTOR *);
379 extern BOOL (WINAPI *qwglSwapBuffers)(HDC);
380 extern HGLRC (WINAPI *qwglCreateContext)(HDC);
381 extern BOOL (WINAPI *qwglDeleteContext)(HGLRC);
382 extern PROC (WINAPI *qwglGetProcAddress)(LPCSTR);
383 extern BOOL (WINAPI *qwglMakeCurrent)(HDC, HGLRC);
384 extern BOOL (WINAPI *qwglSwapIntervalEXT)(int interval);
385 #endif
386
387 #define DEBUGGL
388
389 #ifdef DEBUGGL
390 #define CHECKGLERROR if ((errornumber = qglGetError())) GL_PrintError(errornumber, __FILE__, __LINE__);
391 extern int errornumber;
392 void GL_PrintError(int errornumber, char *filename, int linenumber);
393 #else
394 #define CHECKGLERROR
395 #endif
396
397 #endif
398