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