include/GL/glx.h

   1 /*
   2  * Mesa 3-D graphics library
   3  *
   4  * Copyright (C) 1999-2006  Brian Paul   All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included
  14  * in all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  17  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  22  * OTHER DEALINGS IN THE SOFTWARE.
  23  */
  24
  25
  26 #ifndef GLX_H
  27 #define GLX_H
  28
  29
  30 #include <X11/Xlib.h>
  31 #include <X11/Xutil.h>
  32 #include <GL/gl.h>
  33
  34
  35 #if defined(USE_MGL_NAMESPACE)
  36 #include "glx_mangle.h"
  37 #endif
  38
  39
  40 #ifdef __cplusplus
  41 extern "C" {
  42 #endif
  43
  44
  45 #define GLX_VERSION_1_1         1
  46 #define GLX_VERSION_1_2         1
  47 #define GLX_VERSION_1_3         1
  48 #define GLX_VERSION_1_4         1
  49
  50 #define GLX_EXTENSION_NAME   "GLX"
  51
  52
  53
  54 /*
  55  * Tokens for glXChooseVisual and glXGetConfig:
  56  */
  57 #define GLX_USE_GL              1
  58 #define GLX_BUFFER_SIZE         2
  59 #define GLX_LEVEL               3
  60 #define GLX_RGBA                4
  61 #define GLX_DOUBLEBUFFER        5
  62 #define GLX_STEREO              6
  63 #define GLX_AUX_BUFFERS         7
  64 #define GLX_RED_SIZE            8
  65 #define GLX_GREEN_SIZE          9
  66 #define GLX_BLUE_SIZE           10
  67 #define GLX_ALPHA_SIZE          11
  68 #define GLX_DEPTH_SIZE          12
  69 #define GLX_STENCIL_SIZE        13
  70 #define GLX_ACCUM_RED_SIZE      14
  71 #define GLX_ACCUM_GREEN_SIZE    15
  72 #define GLX_ACCUM_BLUE_SIZE     16
  73 #define GLX_ACCUM_ALPHA_SIZE    17
  74
  75
  76 /*
  77  * Error codes returned by glXGetConfig:
  78  */
  79 #define GLX_BAD_SCREEN          1
  80 #define GLX_BAD_ATTRIBUTE       2
  81 #define GLX_NO_EXTENSION        3
  82 #define GLX_BAD_VISUAL          4
  83 #define GLX_BAD_CONTEXT         5
  84 #define GLX_BAD_VALUE           6
  85 #define GLX_BAD_ENUM            7
  86
  87
  88 /*
  89  * GLX 1.1 and later:
  90  */
  91 #define GLX_VENDOR              1
  92 #define GLX_VERSION             2
  93 #define GLX_EXTENSIONS          3
  94
  95
  96 /*
  97  * GLX 1.3 and later:
  98  */
  99 #define GLX_CONFIG_CAVEAT               0x20
 100 #define GLX_DONT_CARE                   0xFFFFFFFF
 101 #define GLX_X_VISUAL_TYPE               0x22
 102 #define GLX_TRANSPARENT_TYPE            0x23
 103 #define GLX_TRANSPARENT_INDEX_VALUE     0x24
 104 #define GLX_TRANSPARENT_RED_VALUE       0x25
 105 #define GLX_TRANSPARENT_GREEN_VALUE     0x26
 106 #define GLX_TRANSPARENT_BLUE_VALUE      0x27
 107 #define GLX_TRANSPARENT_ALPHA_VALUE     0x28
 108 #define GLX_WINDOW_BIT                  0x00000001
 109 #define GLX_PIXMAP_BIT                  0x00000002
 110 #define GLX_PBUFFER_BIT                 0x00000004
 111 #define GLX_AUX_BUFFERS_BIT             0x00000010
 112 #define GLX_FRONT_LEFT_BUFFER_BIT       0x00000001
 113 #define GLX_FRONT_RIGHT_BUFFER_BIT      0x00000002
 114 #define GLX_BACK_LEFT_BUFFER_BIT        0x00000004
 115 #define GLX_BACK_RIGHT_BUFFER_BIT       0x00000008
 116 #define GLX_DEPTH_BUFFER_BIT            0x00000020
 117 #define GLX_STENCIL_BUFFER_BIT          0x00000040
 118 #define GLX_ACCUM_BUFFER_BIT            0x00000080
 119 #define GLX_NONE                        0x8000
 120 #define GLX_SLOW_CONFIG                 0x8001
 121 #define GLX_TRUE_COLOR                  0x8002
 122 #define GLX_DIRECT_COLOR                0x8003
 123 #define GLX_PSEUDO_COLOR                0x8004
 124 #define GLX_STATIC_COLOR                0x8005
 125 #define GLX_GRAY_SCALE                  0x8006
 126 #define GLX_STATIC_GRAY                 0x8007
 127 #define GLX_TRANSPARENT_RGB             0x8008
 128 #define GLX_TRANSPARENT_INDEX           0x8009
 129 #define GLX_VISUAL_ID                   0x800B
 130 #define GLX_SCREEN                      0x800C
 131 #define GLX_NON_CONFORMANT_CONFIG       0x800D
 132 #define GLX_DRAWABLE_TYPE               0x8010
 133 #define GLX_RENDER_TYPE                 0x8011
 134 #define GLX_X_RENDERABLE                0x8012
 135 #define GLX_FBCONFIG_ID                 0x8013
 136 #define GLX_RGBA_TYPE                   0x8014
 137 #define GLX_COLOR_INDEX_TYPE            0x8015
 138 #define GLX_MAX_PBUFFER_WIDTH           0x8016
 139 #define GLX_MAX_PBUFFER_HEIGHT          0x8017
 140 #define GLX_MAX_PBUFFER_PIXELS          0x8018
 141 #define GLX_PRESERVED_CONTENTS          0x801B
 142 #define GLX_LARGEST_PBUFFER             0x801C
 143 #define GLX_WIDTH                       0x801D
 144 #define GLX_HEIGHT                      0x801E
 145 #define GLX_EVENT_MASK                  0x801F
 146 #define GLX_DAMAGED                     0x8020
 147 #define GLX_SAVED                       0x8021
 148 #define GLX_WINDOW                      0x8022
 149 #define GLX_PBUFFER                     0x8023
 150 #define GLX_PBUFFER_HEIGHT              0x8040
 151 #define GLX_PBUFFER_WIDTH               0x8041
 152 #define GLX_RGBA_BIT                    0x00000001
 153 #define GLX_COLOR_INDEX_BIT             0x00000002
 154 #define GLX_PBUFFER_CLOBBER_MASK        0x08000000
 155
 156
 157 /*
 158  * GLX 1.4 and later:
 159  */
 160 #define GLX_SAMPLE_BUFFERS              0x186a0 /*100000*/
 161 #define GLX_SAMPLES                     0x186a1 /*100001*/
 162
 163
 164
 165 typedef struct __GLXcontextRec *GLXContext;
 166 typedef XID GLXPixmap;
 167 typedef XID GLXDrawable;
 168 /* GLX 1.3 and later */
 169 typedef struct __GLXFBConfigRec *GLXFBConfig;
 170 typedef XID GLXFBConfigID;
 171 typedef XID GLXWindow;
 172 typedef XID GLXPbuffer;
 173
 174
 175 /*
 176 ** Events.
 177 ** __GLX_NUMBER_EVENTS is set to 17 to account for the BufferClobberSGIX
 178 **  event - this helps initialization if the server supports the pbuffer
 179 **  extension and the client doesn't.
 180 */
 181 #define GLX_PbufferClobber      0
 182 #define GLX_BufferSwapComplete  1
 183
 184 #define __GLX_NUMBER_EVENTS 17
 185
 186 extern XVisualInfo* glXChooseVisual( Display *dpy, int screen,
 187                                      int *attribList );
 188
 189 extern GLXContext glXCreateContext( Display *dpy, XVisualInfo *vis,
 190                                     GLXContext shareList, Bool direct );
 191
 192 extern void glXDestroyContext( Display *dpy, GLXContext ctx );
 193
 194 extern Bool glXMakeCurrent( Display *dpy, GLXDrawable drawable,
 195                             GLXContext ctx);
 196
 197 extern void glXCopyContext( Display *dpy, GLXContext src, GLXContext dst,
 198                             unsigned long mask );
 199
 200 extern void glXSwapBuffers( Display *dpy, GLXDrawable drawable );
 201
 202 extern GLXPixmap glXCreateGLXPixmap( Display *dpy, XVisualInfo *visual,
 203                                      Pixmap pixmap );
 204
 205 extern void glXDestroyGLXPixmap( Display *dpy, GLXPixmap pixmap );
 206
 207 extern Bool glXQueryExtension( Display *dpy, int *errorb, int *event );
 208
 209 extern Bool glXQueryVersion( Display *dpy, int *maj, int *min );
 210
 211 extern Bool glXIsDirect( Display *dpy, GLXContext ctx );
 212
 213 extern int glXGetConfig( Display *dpy, XVisualInfo *visual,
 214                          int attrib, int *value );
 215
 216 extern GLXContext glXGetCurrentContext( void );
 217
 218 extern GLXDrawable glXGetCurrentDrawable( void );
 219
 220 extern void glXWaitGL( void );
 221
 222 extern void glXWaitX( void );
 223
 224 extern void glXUseXFont( Font font, int first, int count, int list );
 225
 226
 227
 228 /* GLX 1.1 and later */
 229 extern const char *glXQueryExtensionsString( Display *dpy, int screen );
 230
 231 extern const char *glXQueryServerString( Display *dpy, int screen, int name );
 232
 233 extern const char *glXGetClientString( Display *dpy, int name );
 234
 235
 236 /* GLX 1.2 and later */
 237 extern Display *glXGetCurrentDisplay( void );
 238
 239
 240 /* GLX 1.3 and later */
 241 extern GLXFBConfig *glXChooseFBConfig( Display *dpy, int screen,
 242                                        const int *attribList, int *nitems );
 243
 244 extern int glXGetFBConfigAttrib( Display *dpy, GLXFBConfig config,
 245                                  int attribute, int *value );
 246
 247 extern GLXFBConfig *glXGetFBConfigs( Display *dpy, int screen,
 248                                      int *nelements );
 249
 250 extern XVisualInfo *glXGetVisualFromFBConfig( Display *dpy,
 251                                               GLXFBConfig config );
 252
 253 extern GLXWindow glXCreateWindow( Display *dpy, GLXFBConfig config,
 254                                   Window win, const int *attribList );
 255
 256 extern void glXDestroyWindow( Display *dpy, GLXWindow window );
 257
 258 extern GLXPixmap glXCreatePixmap( Display *dpy, GLXFBConfig config,
 259                                   Pixmap pixmap, const int *attribList );
 260
 261 extern void glXDestroyPixmap( Display *dpy, GLXPixmap pixmap );
 262
 263 extern GLXPbuffer glXCreatePbuffer( Display *dpy, GLXFBConfig config,
 264                                     const int *attribList );
 265
 266 extern void glXDestroyPbuffer( Display *dpy, GLXPbuffer pbuf );
 267
 268 extern void glXQueryDrawable( Display *dpy, GLXDrawable draw, int attribute,
 269                               unsigned int *value );
 270
 271 extern GLXContext glXCreateNewContext( Display *dpy, GLXFBConfig config,
 272                                        int renderType, GLXContext shareList,
 273                                        Bool direct );
 274
 275 extern Bool glXMakeContextCurrent( Display *dpy, GLXDrawable draw,
 276                                    GLXDrawable read, GLXContext ctx );
 277
 278 extern GLXDrawable glXGetCurrentReadDrawable( void );
 279
 280 extern int glXQueryContext( Display *dpy, GLXContext ctx, int attribute,
 281                             int *value );
 282
 283 extern void glXSelectEvent( Display *dpy, GLXDrawable drawable,
 284                             unsigned long mask );
 285
 286 extern void glXGetSelectedEvent( Display *dpy, GLXDrawable drawable,
 287                                  unsigned long *mask );
 288
 289 /* GLX 1.3 function pointer typedefs */
 290 typedef GLXFBConfig * (* PFNGLXGETFBCONFIGSPROC) (Display *dpy, int screen, int *nelements);
 291 typedef GLXFBConfig * (* PFNGLXCHOOSEFBCONFIGPROC) (Display *dpy, int screen, const int *attrib_list, int *nelements);
 292 typedef int (* PFNGLXGETFBCONFIGATTRIBPROC) (Display *dpy, GLXFBConfig config, int attribute, int *value);
 293 typedef XVisualInfo * (* PFNGLXGETVISUALFROMFBCONFIGPROC) (Display *dpy, GLXFBConfig config);
 294 typedef GLXWindow (* PFNGLXCREATEWINDOWPROC) (Display *dpy, GLXFBConfig config, Window win, const int *attrib_list);
 295 typedef void (* PFNGLXDESTROYWINDOWPROC) (Display *dpy, GLXWindow win);
 296 typedef GLXPixmap (* PFNGLXCREATEPIXMAPPROC) (Display *dpy, GLXFBConfig config, Pixmap pixmap, const int *attrib_list);
 297 typedef void (* PFNGLXDESTROYPIXMAPPROC) (Display *dpy, GLXPixmap pixmap);
 298 typedef GLXPbuffer (* PFNGLXCREATEPBUFFERPROC) (Display *dpy, GLXFBConfig config, const int *attrib_list);
 299 typedef void (* PFNGLXDESTROYPBUFFERPROC) (Display *dpy, GLXPbuffer pbuf);
 300 typedef void (* PFNGLXQUERYDRAWABLEPROC) (Display *dpy, GLXDrawable draw, int attribute, unsigned int *value);
 301 typedef GLXContext (* PFNGLXCREATENEWCONTEXTPROC) (Display *dpy, GLXFBConfig config, int render_type, GLXContext share_list, Bool direct);
 302 typedef Bool (* PFNGLXMAKECONTEXTCURRENTPROC) (Display *dpy, GLXDrawable draw, GLXDrawable read, GLXContext ctx);
 303 typedef GLXDrawable (* PFNGLXGETCURRENTREADDRAWABLEPROC) (void);
 304 typedef Display * (* PFNGLXGETCURRENTDISPLAYPROC) (void);
 305 typedef int (* PFNGLXQUERYCONTEXTPROC) (Display *dpy, GLXContext ctx, int attribute, int *value);
 306 typedef void (* PFNGLXSELECTEVENTPROC) (Display *dpy, GLXDrawable draw, unsigned long event_mask);
 307 typedef void (* PFNGLXGETSELECTEDEVENTPROC) (Display *dpy, GLXDrawable draw, unsigned long *event_mask);
 308
 309
 310 /*
 311  * ARB 2. GLX_ARB_get_proc_address
 312  */
 313 #ifndef GLX_ARB_get_proc_address
 314 #define GLX_ARB_get_proc_address 1
 315
 316 typedef void (*__GLXextFuncPtr)(void);
 317 extern __GLXextFuncPtr glXGetProcAddressARB (const GLubyte *);
 318
 319 #endif /* GLX_ARB_get_proc_address */
 320
 321
 322
 323 /* GLX 1.4 and later */
 324 extern void (*glXGetProcAddress(const GLubyte *procname))( void );
 325
 326 /* GLX 1.4 function pointer typedefs */
 327 typedef __GLXextFuncPtr (* PFNGLXGETPROCADDRESSPROC) (const GLubyte *procName);
 328
 329
 330 #ifndef GLX_GLXEXT_LEGACY
 331
 332 #include <GL/glxext.h>
 333
 334 #endif /* GLX_GLXEXT_LEGACY */
 335
 336
 337 /**
 338  ** The following aren't in glxext.h yet.
 339  **/
 340
 341
 342 /*
 343  * ???. GLX_NV_vertex_array_range
 344  */
 345 #ifndef GLX_NV_vertex_array_range
 346 #define GLX_NV_vertex_array_range
 347
 348 extern void *glXAllocateMemoryNV(GLsizei size, GLfloat readfreq, GLfloat writefreq, GLfloat priority);
 349 extern void glXFreeMemoryNV(GLvoid *pointer);
 350 typedef void * ( * PFNGLXALLOCATEMEMORYNVPROC) (GLsizei size, GLfloat readfreq, GLfloat writefreq, GLfloat priority);
 351 typedef void ( * PFNGLXFREEMEMORYNVPROC) (GLvoid *pointer);
 352
 353 #endif /* GLX_NV_vertex_array_range */
 354
 355
 356 /*
 357  * ARB ?. GLX_ARB_render_texture
 358  * XXX This was never finalized!
 359  */
 360 #ifndef GLX_ARB_render_texture
 361 #define GLX_ARB_render_texture 1
 362
 363 extern Bool glXBindTexImageARB(Display *dpy, GLXPbuffer pbuffer, int buffer);
 364 extern Bool glXReleaseTexImageARB(Display *dpy, GLXPbuffer pbuffer, int buffer);
 365 extern Bool glXDrawableAttribARB(Display *dpy, GLXDrawable draw, const int *attribList);
 366
 367 #endif /* GLX_ARB_render_texture */
 368
 369
 370 /*
 371  * Remove this when glxext.h is updated.
 372  */
 373 #ifndef GLX_NV_float_buffer
 374 #define GLX_NV_float_buffer 1
 375
 376 #define GLX_FLOAT_COMPONENTS_NV         0x20B0
 377
 378 #endif /* GLX_NV_float_buffer */
 379
 380
 381
 382 /*
 383  * #?. GLX_MESA_swap_frame_usage
 384  */
 385 #ifndef GLX_MESA_swap_frame_usage
 386 #define GLX_MESA_swap_frame_usage 1
 387
 388 extern int glXGetFrameUsageMESA(Display *dpy, GLXDrawable drawable, float *usage);
 389 extern int glXBeginFrameTrackingMESA(Display *dpy, GLXDrawable drawable);
 390 extern int glXEndFrameTrackingMESA(Display *dpy, GLXDrawable drawable);
 391 extern int glXQueryFrameTrackingMESA(Display *dpy, GLXDrawable drawable, int64_t *swapCount, int64_t *missedFrames, float *lastMissedUsage);
 392
 393 typedef int (*PFNGLXGETFRAMEUSAGEMESAPROC) (Display *dpy, GLXDrawable drawable, float *usage);
 394 typedef int (*PFNGLXBEGINFRAMETRACKINGMESAPROC)(Display *dpy, GLXDrawable drawable);
 395 typedef int (*PFNGLXENDFRAMETRACKINGMESAPROC)(Display *dpy, GLXDrawable drawable);
 396 typedef int (*PFNGLXQUERYFRAMETRACKINGMESAPROC)(Display *dpy, GLXDrawable drawable, int64_t *swapCount, int64_t *missedFrames, float *lastMissedUsage);
 397
 398 #endif /* GLX_MESA_swap_frame_usage */
 399
 400
 401
 402 /*
 403  * #?. GLX_MESA_swap_control
 404  */
 405 #ifndef GLX_MESA_swap_control
 406 #define GLX_MESA_swap_control 1
 407
 408 extern int glXSwapIntervalMESA(unsigned int interval);
 409 extern int glXGetSwapIntervalMESA(void);
 410
 411 typedef int (*PFNGLXSWAPINTERVALMESAPROC)(unsigned int interval);
 412 typedef int (*PFNGLXGETSWAPINTERVALMESAPROC)(void);
 413
 414 #endif /* GLX_MESA_swap_control */
 415
 416
 417
 418 /*
 419  * #?. GLX_EXT_texture_from_pixmap
 420  * XXX not finished?
 421  */
 422 #ifndef GLX_EXT_texture_from_pixmap
 423 #define GLX_EXT_texture_from_pixmap 1
 424
 425 #define GLX_BIND_TO_TEXTURE_RGB_EXT        0x20D0
 426 #define GLX_BIND_TO_TEXTURE_RGBA_EXT       0x20D1
 427 #define GLX_BIND_TO_MIPMAP_TEXTURE_EXT     0x20D2
 428 #define GLX_BIND_TO_TEXTURE_TARGETS_EXT    0x20D3
 429 #define GLX_Y_INVERTED_EXT                 0x20D4
 430
 431 #define GLX_TEXTURE_FORMAT_EXT             0x20D5
 432 #define GLX_TEXTURE_TARGET_EXT             0x20D6
 433 #define GLX_MIPMAP_TEXTURE_EXT             0x20D7
 434
 435 #define GLX_TEXTURE_FORMAT_NONE_EXT        0x20D8
 436 #define GLX_TEXTURE_FORMAT_RGB_EXT         0x20D9
 437 #define GLX_TEXTURE_FORMAT_RGBA_EXT        0x20DA
 438
 439 #define GLX_TEXTURE_1D_BIT_EXT             0x00000001
 440 #define GLX_TEXTURE_2D_BIT_EXT             0x00000002
 441 #define GLX_TEXTURE_RECTANGLE_BIT_EXT      0x00000004
 442
 443 #define GLX_TEXTURE_1D_EXT                 0x20DB
 444 #define GLX_TEXTURE_2D_EXT                 0x20DC
 445 #define GLX_TEXTURE_RECTANGLE_EXT          0x20DD
 446
 447 #define GLX_FRONT_LEFT_EXT                 0x20DE
 448 #define GLX_FRONT_RIGHT_EXT                0x20DF
 449 #define GLX_BACK_LEFT_EXT                  0x20E0
 450 #define GLX_BACK_RIGHT_EXT                 0x20E1
 451 #define GLX_FRONT_EXT                      GLX_FRONT_LEFT_EXT
 452 #define GLX_BACK_EXT                       GLX_BACK_LEFT_EXT
 453 #define GLX_AUX0_EXT                       0x20E2
 454 #define GLX_AUX1_EXT                       0x20E3
 455 #define GLX_AUX2_EXT                       0x20E4
 456 #define GLX_AUX3_EXT                       0x20E5
 457 #define GLX_AUX4_EXT                       0x20E6
 458 #define GLX_AUX5_EXT                       0x20E7
 459 #define GLX_AUX6_EXT                       0x20E8
 460 #define GLX_AUX7_EXT                       0x20E9
 461 #define GLX_AUX8_EXT                       0x20EA
 462 #define GLX_AUX9_EXT                       0x20EB
 463
 464 extern void glXBindTexImageEXT(Display *dpy, GLXDrawable drawable, int buffer, const int *attrib_list);
 465 extern void glXReleaseTexImageEXT(Display *dpy, GLXDrawable drawable, int buffer);
 466
 467 #endif /* GLX_EXT_texture_from_pixmap */
 468
 469
 470
 471
 472 /*** Should these go here, or in another header? */
 473 /*
 474 ** GLX Events
 475 */
 476 typedef struct {
 477     int event_type;             /* GLX_DAMAGED or GLX_SAVED */
 478     int draw_type;              /* GLX_WINDOW or GLX_PBUFFER */
 479     unsigned long serial;       /* # of last request processed by server */
 480     Bool send_event;            /* true if this came for SendEvent request */
 481     Display *display;           /* display the event was read from */
 482     GLXDrawable drawable;       /* XID of Drawable */
 483     unsigned int buffer_mask;   /* mask indicating which buffers are affected */
 484     unsigned int aux_buffer;    /* which aux buffer was affected */
 485     int x, y;
 486     int width, height;
 487     int count;                  /* if nonzero, at least this many more */
 488 } GLXPbufferClobberEvent;
 489
 490 typedef struct {
 491     int type;
 492     unsigned long serial;       /* # of last request processed by server */
 493     Bool send_event;            /* true if this came from a SendEvent request */
 494     Display *display;           /* Display the event was read from */
 495     GLXDrawable drawable;       /* drawable on which event was requested in event mask */
 496     int event_type;
 497     int64_t ust;
 498     int64_t msc;
 499     int64_t sbc;
 500 } GLXBufferSwapComplete;
 501
 502 typedef union __GLXEvent {
 503     GLXPbufferClobberEvent glxpbufferclobber;
 504     GLXBufferSwapComplete glxbufferswapcomplete;
 505     long pad[24];
 506 } GLXEvent;
 507
 508 #ifdef __cplusplus
 509 }
 510 #endif
 511
 512 #endif