include/GL/glx.h

   1 /*
   2  * Mesa 3-D graphics library
   3  * Version:  6.5
   4  *
   5  * Copyright (C) 1999-2006  Brian Paul   All Rights Reserved.
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a
   8  * copy of this software and associated documentation files (the "Software"),
   9  * to deal in the Software without restriction, including without limitation
  10  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  11  * and/or sell copies of the Software, and to permit persons to whom the
  12  * Software is furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice shall be included
  15  * in all copies or substantial portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  21  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  22  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  23  */
  24
  25
  26 #ifndef GLX_H
  27 #define GLX_H
  28
  29
  30 #ifdef __VMS
  31 #include <GL/vms_x_fix.h>
  32 # ifdef __cplusplus
  33 /* VMS Xlib.h gives problems with C++.
  34  * this avoids a bunch of trivial warnings */
  35 #pragma message disable nosimpint
  36 #endif
  37 #endif
  38 #include <X11/Xlib.h>
  39 #include <X11/Xutil.h>
  40 #ifdef __VMS
  41 # ifdef __cplusplus
  42 #pragma message enable nosimpint
  43 #endif
  44 #endif
  45 #include <GL/gl.h>
  46
  47
  48 #if defined(USE_MGL_NAMESPACE)
  49 #include "glx_mangle.h"
  50 #endif
  51
  52
  53 #ifdef __cplusplus
  54 extern "C" {
  55 #endif
  56
  57
  58 #define GLX_VERSION_1_1         1
  59 #define GLX_VERSION_1_2         1
  60 #define GLX_VERSION_1_3         1
  61 #define GLX_VERSION_1_4         1
  62
  63 #define GLX_EXTENSION_NAME   "GLX"
  64
  65
  66
  67 /*
  68  * Tokens for glXChooseVisual and glXGetConfig:
  69  */
  70 #define GLX_USE_GL              1
  71 #define GLX_BUFFER_SIZE         2
  72 #define GLX_LEVEL               3
  73 #define GLX_RGBA                4
  74 #define GLX_DOUBLEBUFFER        5
  75 #define GLX_STEREO              6
  76 #define GLX_AUX_BUFFERS         7
  77 #define GLX_RED_SIZE            8
  78 #define GLX_GREEN_SIZE          9
  79 #define GLX_BLUE_SIZE           10
  80 #define GLX_ALPHA_SIZE          11
  81 #define GLX_DEPTH_SIZE          12
  82 #define GLX_STENCIL_SIZE        13
  83 #define GLX_ACCUM_RED_SIZE      14
  84 #define GLX_ACCUM_GREEN_SIZE    15
  85 #define GLX_ACCUM_BLUE_SIZE     16
  86 #define GLX_ACCUM_ALPHA_SIZE    17
  87
  88
  89 /*
  90  * Error codes returned by glXGetConfig:
  91  */
  92 #define GLX_BAD_SCREEN          1
  93 #define GLX_BAD_ATTRIBUTE       2
  94 #define GLX_NO_EXTENSION        3
  95 #define GLX_BAD_VISUAL          4
  96 #define GLX_BAD_CONTEXT         5
  97 #define GLX_BAD_VALUE           6
  98 #define GLX_BAD_ENUM            7
  99
 100
 101 /*
 102  * GLX 1.1 and later:
 103  */
 104 #define GLX_VENDOR              1
 105 #define GLX_VERSION             2
 106 #define GLX_EXTENSIONS          3
 107
 108
 109 /*
 110  * GLX 1.3 and later:
 111  */
 112 #define GLX_CONFIG_CAVEAT               0x20
 113 #define GLX_DONT_CARE                   0xFFFFFFFF
 114 #define GLX_X_VISUAL_TYPE               0x22
 115 #define GLX_TRANSPARENT_TYPE            0x23
 116 #define GLX_TRANSPARENT_INDEX_VALUE     0x24
 117 #define GLX_TRANSPARENT_RED_VALUE       0x25
 118 #define GLX_TRANSPARENT_GREEN_VALUE     0x26
 119 #define GLX_TRANSPARENT_BLUE_VALUE      0x27
 120 #define GLX_TRANSPARENT_ALPHA_VALUE     0x28
 121 #define GLX_WINDOW_BIT                  0x00000001
 122 #define GLX_PIXMAP_BIT                  0x00000002
 123 #define GLX_PBUFFER_BIT                 0x00000004
 124 #define GLX_AUX_BUFFERS_BIT             0x00000010
 125 #define GLX_FRONT_LEFT_BUFFER_BIT       0x00000001
 126 #define GLX_FRONT_RIGHT_BUFFER_BIT      0x00000002
 127 #define GLX_BACK_LEFT_BUFFER_BIT        0x00000004
 128 #define GLX_BACK_RIGHT_BUFFER_BIT       0x00000008
 129 #define GLX_DEPTH_BUFFER_BIT            0x00000020
 130 #define GLX_STENCIL_BUFFER_BIT          0x00000040
 131 #define GLX_ACCUM_BUFFER_BIT            0x00000080
 132 #define GLX_NONE                        0x8000
 133 #define GLX_SLOW_CONFIG                 0x8001
 134 #define GLX_TRUE_COLOR                  0x8002
 135 #define GLX_DIRECT_COLOR                0x8003
 136 #define GLX_PSEUDO_COLOR                0x8004
 137 #define GLX_STATIC_COLOR                0x8005
 138 #define GLX_GRAY_SCALE                  0x8006
 139 #define GLX_STATIC_GRAY                 0x8007
 140 #define GLX_TRANSPARENT_RGB             0x8008
 141 #define GLX_TRANSPARENT_INDEX           0x8009
 142 #define GLX_VISUAL_ID                   0x800B
 143 #define GLX_SCREEN                      0x800C
 144 #define GLX_NON_CONFORMANT_CONFIG       0x800D
 145 #define GLX_DRAWABLE_TYPE               0x8010
 146 #define GLX_RENDER_TYPE                 0x8011
 147 #define GLX_X_RENDERABLE                0x8012
 148 #define GLX_FBCONFIG_ID                 0x8013
 149 #define GLX_RGBA_TYPE                   0x8014
 150 #define GLX_COLOR_INDEX_TYPE            0x8015
 151 #define GLX_MAX_PBUFFER_WIDTH           0x8016
 152 #define GLX_MAX_PBUFFER_HEIGHT          0x8017
 153 #define GLX_MAX_PBUFFER_PIXELS          0x8018
 154 #define GLX_PRESERVED_CONTENTS          0x801B
 155 #define GLX_LARGEST_PBUFFER             0x801C
 156 #define GLX_WIDTH                       0x801D
 157 #define GLX_HEIGHT                      0x801E
 158 #define GLX_EVENT_MASK                  0x801F
 159 #define GLX_DAMAGED                     0x8020
 160 #define GLX_SAVED                       0x8021
 161 #define GLX_WINDOW                      0x8022
 162 #define GLX_PBUFFER                     0x8023
 163 #define GLX_PBUFFER_HEIGHT              0x8040
 164 #define GLX_PBUFFER_WIDTH               0x8041
 165 #define GLX_RGBA_BIT                    0x00000001
 166 #define GLX_COLOR_INDEX_BIT             0x00000002
 167 #define GLX_PBUFFER_CLOBBER_MASK        0x08000000
 168
 169
 170 /*
 171  * GLX 1.4 and later:
 172  */
 173 #define GLX_SAMPLE_BUFFERS              0x186a0 /*100000*/
 174 #define GLX_SAMPLES                     0x186a1 /*100001*/
 175
 176
 177
 178 typedef struct __GLXcontextRec *GLXContext;
 179 typedef XID GLXPixmap;
 180 typedef XID GLXDrawable;
 181 /* GLX 1.3 and later */
 182 typedef struct __GLXFBConfigRec *GLXFBConfig;
 183 typedef XID GLXFBConfigID;
 184 typedef XID GLXContextID;
 185 typedef XID GLXWindow;
 186 typedef XID GLXPbuffer;
 187
 188
 189
 190 extern XVisualInfo* glXChooseVisual( Display *dpy, int screen,
 191                                      int *attribList );
 192
 193 extern GLXContext glXCreateContext( Display *dpy, XVisualInfo *vis,
 194                                     GLXContext shareList, Bool direct );
 195
 196 extern void glXDestroyContext( Display *dpy, GLXContext ctx );
 197
 198 extern Bool glXMakeCurrent( Display *dpy, GLXDrawable drawable,
 199                             GLXContext ctx);
 200
 201 extern void glXCopyContext( Display *dpy, GLXContext src, GLXContext dst,
 202                             unsigned long mask );
 203
 204 extern void glXSwapBuffers( Display *dpy, GLXDrawable drawable );
 205
 206 extern GLXPixmap glXCreateGLXPixmap( Display *dpy, XVisualInfo *visual,
 207                                      Pixmap pixmap );
 208
 209 extern void glXDestroyGLXPixmap( Display *dpy, GLXPixmap pixmap );
 210
 211 extern Bool glXQueryExtension( Display *dpy, int *errorb, int *event );
 212
 213 extern Bool glXQueryVersion( Display *dpy, int *maj, int *min );
 214
 215 extern Bool glXIsDirect( Display *dpy, GLXContext ctx );
 216
 217 extern int glXGetConfig( Display *dpy, XVisualInfo *visual,
 218                          int attrib, int *value );
 219
 220 extern GLXContext glXGetCurrentContext( void );
 221
 222 extern GLXDrawable glXGetCurrentDrawable( void );
 223
 224 extern void glXWaitGL( void );
 225
 226 extern void glXWaitX( void );
 227
 228 extern void glXUseXFont( Font font, int first, int count, int list );
 229
 230
 231
 232 /* GLX 1.1 and later */
 233 extern const char *glXQueryExtensionsString( Display *dpy, int screen );
 234
 235 extern const char *glXQueryServerString( Display *dpy, int screen, int name );
 236
 237 extern const char *glXGetClientString( Display *dpy, int name );
 238
 239
 240 /* GLX 1.2 and later */
 241 extern Display *glXGetCurrentDisplay( void );
 242
 243
 244 /* GLX 1.3 and later */
 245 extern GLXFBConfig *glXChooseFBConfig( Display *dpy, int screen,
 246                                        const int *attribList, int *nitems );
 247
 248 extern int glXGetFBConfigAttrib( Display *dpy, GLXFBConfig config,
 249                                  int attribute, int *value );
 250
 251 extern GLXFBConfig *glXGetFBConfigs( Display *dpy, int screen,
 252                                      int *nelements );
 253
 254 extern XVisualInfo *glXGetVisualFromFBConfig( Display *dpy,
 255                                               GLXFBConfig config );
 256
 257 extern GLXWindow glXCreateWindow( Display *dpy, GLXFBConfig config,
 258                                   Window win, const int *attribList );
 259
 260 extern void glXDestroyWindow( Display *dpy, GLXWindow window );
 261
 262 extern GLXPixmap glXCreatePixmap( Display *dpy, GLXFBConfig config,
 263                                   Pixmap pixmap, const int *attribList );
 264
 265 extern void glXDestroyPixmap( Display *dpy, GLXPixmap pixmap );
 266
 267 extern GLXPbuffer glXCreatePbuffer( Display *dpy, GLXFBConfig config,
 268                                     const int *attribList );
 269
 270 extern void glXDestroyPbuffer( Display *dpy, GLXPbuffer pbuf );
 271
 272 extern void glXQueryDrawable( Display *dpy, GLXDrawable draw, int attribute,
 273                               unsigned int *value );
 274
 275 extern GLXContext glXCreateNewContext( Display *dpy, GLXFBConfig config,
 276                                        int renderType, GLXContext shareList,
 277                                        Bool direct );
 278
 279 extern Bool glXMakeContextCurrent( Display *dpy, GLXDrawable draw,
 280                                    GLXDrawable read, GLXContext ctx );
 281
 282 extern GLXDrawable glXGetCurrentReadDrawable( void );
 283
 284 extern int glXQueryContext( Display *dpy, GLXContext ctx, int attribute,
 285                             int *value );
 286
 287 extern void glXSelectEvent( Display *dpy, GLXDrawable drawable,
 288                             unsigned long mask );
 289
 290 extern void glXGetSelectedEvent( Display *dpy, GLXDrawable drawable,
 291                                  unsigned long *mask );
 292
 293 /* GLX 1.3 function pointer typedefs */
 294 typedef GLXFBConfig * (* PFNGLXGETFBCONFIGSPROC) (Display *dpy, int screen, int *nelements);
 295 typedef GLXFBConfig * (* PFNGLXCHOOSEFBCONFIGPROC) (Display *dpy, int screen, const int *attrib_list, int *nelements);
 296 typedef int (* PFNGLXGETFBCONFIGATTRIBPROC) (Display *dpy, GLXFBConfig config, int attribute, int *value);
 297 typedef XVisualInfo * (* PFNGLXGETVISUALFROMFBCONFIGPROC) (Display *dpy, GLXFBConfig config);
 298 typedef GLXWindow (* PFNGLXCREATEWINDOWPROC) (Display *dpy, GLXFBConfig config, Window win, const int *attrib_list);
 299 typedef void (* PFNGLXDESTROYWINDOWPROC) (Display *dpy, GLXWindow win);
 300 typedef GLXPixmap (* PFNGLXCREATEPIXMAPPROC) (Display *dpy, GLXFBConfig config, Pixmap pixmap, const int *attrib_list);
 301 typedef void (* PFNGLXDESTROYPIXMAPPROC) (Display *dpy, GLXPixmap pixmap);
 302 typedef GLXPbuffer (* PFNGLXCREATEPBUFFERPROC) (Display *dpy, GLXFBConfig config, const int *attrib_list);
 303 typedef void (* PFNGLXDESTROYPBUFFERPROC) (Display *dpy, GLXPbuffer pbuf);
 304 typedef void (* PFNGLXQUERYDRAWABLEPROC) (Display *dpy, GLXDrawable draw, int attribute, unsigned int *value);
 305 typedef GLXContext (* PFNGLXCREATENEWCONTEXTPROC) (Display *dpy, GLXFBConfig config, int render_type, GLXContext share_list, Bool direct);
 306 typedef Bool (* PFNGLXMAKECONTEXTCURRENTPROC) (Display *dpy, GLXDrawable draw, GLXDrawable read, GLXContext ctx);
 307 typedef GLXDrawable (* PFNGLXGETCURRENTREADDRAWABLEPROC) (void);
 308 typedef Display * (* PFNGLXGETCURRENTDISPLAYPROC) (void);
 309 typedef int (* PFNGLXQUERYCONTEXTPROC) (Display *dpy, GLXContext ctx, int attribute, int *value);
 310 typedef void (* PFNGLXSELECTEVENTPROC) (Display *dpy, GLXDrawable draw, unsigned long event_mask);
 311 typedef void (* PFNGLXGETSELECTEDEVENTPROC) (Display *dpy, GLXDrawable draw, unsigned long *event_mask);
 312
 313
 314 /*
 315  * ARB 2. GLX_ARB_get_proc_address
 316  */
 317 #ifndef GLX_ARB_get_proc_address
 318 #define GLX_ARB_get_proc_address 1
 319
 320 typedef void (*__GLXextFuncPtr)(void);
 321 extern __GLXextFuncPtr glXGetProcAddressARB (const GLubyte *);
 322
 323 #endif /* GLX_ARB_get_proc_address */
 324
 325
 326
 327 /* GLX 1.4 and later */
 328 extern void (*glXGetProcAddress(const GLubyte *procname))( void );
 329
 330 /* GLX 1.4 function pointer typedefs */
 331 typedef __GLXextFuncPtr (* PFNGLXGETPROCADDRESSPROC) (const GLubyte *procName);
 332
 333
 334 #ifndef GLX_GLXEXT_LEGACY
 335
 336 #include <GL/glxext.h>
 337
 338 #endif /* GLX_GLXEXT_LEGACY */
 339
 340
 341 /**
 342  ** The following aren't in glxext.h yet.
 343  **/
 344
 345
 346 /*
 347  * ???. GLX_NV_vertex_array_range
 348  */
 349 #ifndef GLX_NV_vertex_array_range
 350 #define GLX_NV_vertex_array_range
 351
 352 extern void *glXAllocateMemoryNV(GLsizei size, GLfloat readfreq, GLfloat writefreq, GLfloat priority);
 353 extern void glXFreeMemoryNV(GLvoid *pointer);
 354 typedef void * ( * PFNGLXALLOCATEMEMORYNVPROC) (GLsizei size, GLfloat readfreq, GLfloat writefreq, GLfloat priority);
 355 typedef void ( * PFNGLXFREEMEMORYNVPROC) (GLvoid *pointer);
 356
 357 #endif /* GLX_NV_vertex_array_range */
 358
 359
 360 /*
 361  * ???. GLX_MESA_allocate_memory
 362  */
 363 #ifndef GLX_MESA_allocate_memory
 364 #define GLX_MESA_allocate_memory 1
 365
 366 extern void *glXAllocateMemoryMESA(Display *dpy, int scrn, size_t size, float readfreq, float writefreq, float priority);
 367 extern void glXFreeMemoryMESA(Display *dpy, int scrn, void *pointer);
 368 extern GLuint glXGetMemoryOffsetMESA(Display *dpy, int scrn, const void *pointer);
 369 typedef void * ( * PFNGLXALLOCATEMEMORYMESAPROC) (Display *dpy, int scrn, size_t size, float readfreq, float writefreq, float priority);
 370 typedef void ( * PFNGLXFREEMEMORYMESAPROC) (Display *dpy, int scrn, void *pointer);
 371 typedef GLuint (* PFNGLXGETMEMORYOFFSETMESAPROC) (Display *dpy, int scrn, const void *pointer);
 372
 373 #endif /* GLX_MESA_allocate_memory */
 374
 375
 376 /*
 377  * ARB ?. GLX_ARB_render_texture
 378  * XXX This was never finalized!
 379  */
 380 #ifndef GLX_ARB_render_texture
 381 #define GLX_ARB_render_texture 1
 382
 383 extern Bool glXBindTexImageARB(Display *dpy, GLXPbuffer pbuffer, int buffer);
 384 extern Bool glXReleaseTexImageARB(Display *dpy, GLXPbuffer pbuffer, int buffer);
 385 extern Bool glXDrawableAttribARB(Display *dpy, GLXDrawable draw, const int *attribList);
 386
 387 #endif /* GLX_ARB_render_texture */
 388
 389
 390 /*
 391  * Remove this when glxext.h is updated.
 392  */
 393 #ifndef GLX_NV_float_buffer
 394 #define GLX_NV_float_buffer 1
 395
 396 #define GLX_FLOAT_COMPONENTS_NV         0x20B0
 397
 398 #endif /* GLX_NV_float_buffer */
 399
 400
 401
 402 /*
 403  * #?. GLX_MESA_swap_frame_usage
 404  */
 405 #ifndef GLX_MESA_swap_frame_usage
 406 #define GLX_MESA_swap_frame_usage 1
 407
 408 extern int glXGetFrameUsageMESA(Display *dpy, GLXDrawable drawable, float *usage);
 409 extern int glXBeginFrameTrackingMESA(Display *dpy, GLXDrawable drawable);
 410 extern int glXEndFrameTrackingMESA(Display *dpy, GLXDrawable drawable);
 411 extern int glXQueryFrameTrackingMESA(Display *dpy, GLXDrawable drawable, int64_t *swapCount, int64_t *missedFrames, float *lastMissedUsage);
 412
 413 typedef int (*PFNGLXGETFRAMEUSAGEMESAPROC) (Display *dpy, GLXDrawable drawable, float *usage);
 414 typedef int (*PFNGLXBEGINFRAMETRACKINGMESAPROC)(Display *dpy, GLXDrawable drawable);
 415 typedef int (*PFNGLXENDFRAMETRACKINGMESAPROC)(Display *dpy, GLXDrawable drawable);
 416 typedef int (*PFNGLXQUERYFRAMETRACKINGMESAPROC)(Display *dpy, GLXDrawable drawable, int64_t *swapCount, int64_t *missedFrames, float *lastMissedUsage);
 417
 418 #endif /* GLX_MESA_swap_frame_usage */
 419
 420
 421
 422 /*
 423  * #?. GLX_MESA_swap_control
 424  */
 425 #ifndef GLX_MESA_swap_control
 426 #define GLX_MESA_swap_control 1
 427
 428 extern int glXSwapIntervalMESA(unsigned int interval);
 429 extern int glXGetSwapIntervalMESA(void);
 430
 431 typedef int (*PFNGLXSWAPINTERVALMESAPROC)(unsigned int interval);
 432 typedef int (*PFNGLXGETSWAPINTERVALMESAPROC)(void);
 433
 434 #endif /* GLX_MESA_swap_control */
 435
 436
 437
 438 /*
 439  * #?. GLX_EXT_texture_from_pixmap
 440  * XXX not finished?
 441  */
 442 #ifndef GLX_EXT_texture_from_pixmap
 443 #define GLX_EXT_texture_from_pixmap 1
 444
 445 #define GLX_BIND_TO_TEXTURE_RGB_EXT        0x20D0
 446 #define GLX_BIND_TO_TEXTURE_RGBA_EXT       0x20D1
 447 #define GLX_BIND_TO_MIPMAP_TEXTURE_EXT     0x20D2
 448 #define GLX_BIND_TO_TEXTURE_TARGETS_EXT    0x20D3
 449 #define GLX_Y_INVERTED_EXT                 0x20D4
 450
 451 #define GLX_TEXTURE_FORMAT_EXT             0x20D5
 452 #define GLX_TEXTURE_TARGET_EXT             0x20D6
 453 #define GLX_MIPMAP_TEXTURE_EXT             0x20D7
 454
 455 #define GLX_TEXTURE_FORMAT_NONE_EXT        0x20D8
 456 #define GLX_TEXTURE_FORMAT_RGB_EXT         0x20D9
 457 #define GLX_TEXTURE_FORMAT_RGBA_EXT        0x20DA
 458
 459 #define GLX_TEXTURE_1D_BIT_EXT             0x00000001
 460 #define GLX_TEXTURE_2D_BIT_EXT             0x00000002
 461 #define GLX_TEXTURE_RECTANGLE_BIT_EXT      0x00000004
 462
 463 #define GLX_TEXTURE_1D_EXT                 0x20DB
 464 #define GLX_TEXTURE_2D_EXT                 0x20DC
 465 #define GLX_TEXTURE_RECTANGLE_EXT          0x20DD
 466
 467 #define GLX_FRONT_LEFT_EXT                 0x20DE
 468 #define GLX_FRONT_RIGHT_EXT                0x20DF
 469 #define GLX_BACK_LEFT_EXT                  0x20E0
 470 #define GLX_BACK_RIGHT_EXT                 0x20E1
 471 #define GLX_FRONT_EXT                      GLX_FRONT_LEFT_EXT
 472 #define GLX_BACK_EXT                       GLX_BACK_LEFT_EXT
 473 #define GLX_AUX0_EXT                       0x20E2
 474 #define GLX_AUX1_EXT                       0x20E3
 475 #define GLX_AUX2_EXT                       0x20E4
 476 #define GLX_AUX3_EXT                       0x20E5
 477 #define GLX_AUX4_EXT                       0x20E6
 478 #define GLX_AUX5_EXT                       0x20E7
 479 #define GLX_AUX6_EXT                       0x20E8
 480 #define GLX_AUX7_EXT                       0x20E9
 481 #define GLX_AUX8_EXT                       0x20EA
 482 #define GLX_AUX9_EXT                       0x20EB
 483
 484 extern void glXBindTexImageEXT(Display *dpy, GLXDrawable drawable, int buffer, const int *attrib_list);
 485 extern void glXReleaseTexImageEXT(Display *dpy, GLXDrawable drawable, int buffer);
 486
 487 #endif /* GLX_EXT_texture_from_pixmap */
 488
 489
 490
 491
 492 /*** Should these go here, or in another header? */
 493 /*
 494 ** GLX Events
 495 */
 496 typedef struct {
 497     int event_type;             /* GLX_DAMAGED or GLX_SAVED */
 498     int draw_type;              /* GLX_WINDOW or GLX_PBUFFER */
 499     unsigned long serial;       /* # of last request processed by server */
 500     Bool send_event;            /* true if this came for SendEvent request */
 501     Display *display;           /* display the event was read from */
 502     GLXDrawable drawable;       /* XID of Drawable */
 503     unsigned int buffer_mask;   /* mask indicating which buffers are affected */
 504     unsigned int aux_buffer;    /* which aux buffer was affected */
 505     int x, y;
 506     int width, height;
 507     int count;                  /* if nonzero, at least this many more */
 508 } GLXPbufferClobberEvent;
 509
 510 typedef union __GLXEvent {
 511     GLXPbufferClobberEvent glxpbufferclobber;
 512     long pad[24];
 513 } GLXEvent;
 514
 515 #ifdef __cplusplus
 516 }
 517 #endif
 518
 519 #endif