src/glx/x11/glxclient.h

   1 /*
   2 ** License Applicability. Except to the extent portions of this file are
   3 ** made subject to an alternative license as permitted in the SGI Free
   4 ** Software License B, Version 1.1 (the "License"), the contents of this
   5 ** file are subject only to the provisions of the License. You may not use
   6 ** this file except in compliance with the License. You may obtain a copy
   7 ** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
   8 ** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
   9 **
  10 ** http://oss.sgi.com/projects/FreeB
  11 **
  12 ** Note that, as provided in the License, the Software is distributed on an
  13 ** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
  14 ** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
  15 ** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
  16 ** PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
  17 **
  18 ** Original Code. The Original Code is: OpenGL Sample Implementation,
  19 ** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
  20 ** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
  21 ** Copyright in any portions created by third parties is as indicated
  22 ** elsewhere herein. All Rights Reserved.
  23 **
  24 ** Additional Notice Provisions: The application programming interfaces
  25 ** established by SGI in conjunction with the Original Code are The
  26 ** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
  27 ** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
  28 ** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
  29 ** Window System(R) (Version 1.3), released October 19, 1998. This software
  30 ** was created using the OpenGL(R) version 1.2.1 Sample Implementation
  31 ** published by SGI, but has not been independently verified as being
  32 ** compliant with the OpenGL(R) version 1.2.1 Specification.
  33 */
  34 /* $XFree86: xc/lib/GL/glx/glxclient.h,v 1.21 2004/02/09 23:46:31 alanh Exp $ */
  35
  36 /**
  37  * \file glxclient.h
  38  * Direct rendering support added by Precision Insight, Inc.
  39  *
  40  * \author Kevin E. Martin <kevin@precisioninsight.com>
  41  */
  42
  43 #ifndef _GLX_client_h_
  44 #define _GLX_client_h_
  45 #define NEED_REPLIES
  46 #define NEED_EVENTS
  47 #include <X11/Xproto.h>
  48 #include <X11/Xlibint.h>
  49 #define GLX_GLXEXT_PROTOTYPES
  50 #include <GL/glx.h>
  51 #include <GL/glxext.h>
  52 #include <string.h>
  53 #include <stdlib.h>
  54 #include <stdio.h>
  55 #ifdef WIN32
  56 #include <stdint.h>
  57 #endif
  58 #include "GL/glxint.h"
  59 #include "GL/glxproto.h"
  60 #include "GL/internal/glcore.h"
  61 #include "glapitable.h"
  62 #include "glxextensions.h"
  63 #if defined( USE_XTHREADS )
  64 # include <X11/Xthreads.h>
  65 #elif defined( PTHREADS )
  66 # include <pthread.h>
  67 #endif
  68
  69 #define GLX_MAJOR_VERSION       1       /* current version numbers */
  70 #define GLX_MINOR_VERSION       4
  71
  72 #define __GLX_MAX_TEXTURE_UNITS 32
  73
  74 typedef struct __GLXcontextRec __GLXcontext;
  75 typedef struct __GLXdisplayPrivateRec __GLXdisplayPrivate;
  76 typedef struct _glapi_table __GLapi;
  77
  78 /************************************************************************/
  79
  80 #ifdef GLX_DIRECT_RENDERING
  81
  82 #include <GL/internal/dri_interface.h>
  83
  84
  85 /**
  86  * Display dependent methods.  This structure is initialized during the
  87  * \c driCreateDisplay call.
  88  */
  89 struct __DRIdisplayRec {
  90     /**
  91      * Method to destroy the private DRI display data.
  92      */
  93     void (*destroyDisplay)(Display *dpy, void *displayPrivate);
  94
  95     /**
  96      * Opaque pointer to private per display direct rendering data.
  97      * \c NULL if direct rendering is not supported on this display.
  98      */
  99     struct __DRIdisplayPrivateRec *private;
 100
 101     /**
 102      * Array of pointers to methods to create and initialize the private DRI
 103      * screen data.
 104      */
 105     PFNCREATENEWSCREENFUNC * createNewScreen;
 106 };
 107
 108
 109 /*
 110 ** We keep a linked list of these structures, one per DRI device driver.
 111 */
 112 struct __DRIdriverRec {
 113    const char *name;
 114    void *handle;
 115    PFNCREATENEWSCREENFUNC createNewScreenFunc;
 116    struct __DRIdriverRec *next;
 117 };
 118
 119 /*
 120 ** Function to create and DRI display data and initialize the display
 121 ** dependent methods.
 122 */
 123 extern void *driCreateDisplay(Display *dpy, __DRIdisplay *pdisp);
 124
 125 extern  __DRIdriver *driGetDriver(Display *dpy, int scrNum);
 126
 127 extern void DRI_glXUseXFont( Font font, int first, int count, int listbase );
 128
 129 /*
 130 ** Functions to obtain driver configuration information from a direct
 131 ** rendering client application
 132 */
 133 extern const char *glXGetScreenDriver (Display *dpy, int scrNum);
 134
 135 extern const char *glXGetDriverConfig (const char *driverName);
 136
 137 extern Bool __glXWindowExists(Display *dpy, GLXDrawable draw);
 138
 139 #endif
 140
 141 /************************************************************************/
 142
 143 #define __GL_CLIENT_ATTRIB_STACK_DEPTH 16
 144
 145 typedef struct __GLXpixelStoreModeRec {
 146     GLboolean swapEndian;
 147     GLboolean lsbFirst;
 148     GLuint rowLength;
 149     GLuint imageHeight;
 150     GLuint imageDepth;
 151     GLuint skipRows;
 152     GLuint skipPixels;
 153     GLuint skipImages;
 154     GLuint alignment;
 155 } __GLXpixelStoreMode;
 156
 157
 158 typedef struct __GLXattributeRec {
 159     GLuint mask;
 160
 161     /**
 162      * Pixel storage state.  Most of the pixel store mode state is kept
 163      * here and used by the client code to manage the packing and
 164      * unpacking of data sent to/received from the server.
 165      */
 166     __GLXpixelStoreMode storePack, storeUnpack;
 167
 168     /**
 169      * Is EXT_vertex_array / GL 1.1 DrawArrays protocol specifically
 170      * disabled?
 171      */
 172     GLboolean NoDrawArraysProtocol;
 173
 174     /**
 175      * Vertex Array storage state.  The vertex array component
 176      * state is stored here and is used to manage the packing of
 177      * DrawArrays data sent to the server.
 178      */
 179     struct array_state_vector * array_state;
 180 } __GLXattribute;
 181
 182 typedef struct __GLXattributeMachineRec {
 183         __GLXattribute *stack[__GL_CLIENT_ATTRIB_STACK_DEPTH];
 184         __GLXattribute **stackPointer;
 185 } __GLXattributeMachine;
 186
 187 /**
 188  * GLX state that needs to be kept on the client.  One of these records
 189  * exist for each context that has been made current by this client.
 190  */
 191 struct __GLXcontextRec {
 192     /**
 193      * \name Drawing command buffer.
 194      *
 195      * Drawing commands are packed into this buffer before being sent as a
 196      * single GLX protocol request.  The buffer is sent when it overflows or
 197      * is flushed by \c __glXFlushRenderBuffer.  \c pc is the next location
 198      * in the buffer to be filled.  \c limit is described above in the buffer
 199      * slop discussion.
 200      *
 201      * Commands that require large amounts of data to be transfered will
 202      * also use this buffer to hold a header that describes the large
 203      * command.
 204      *
 205      * These must be the first 6 fields since they are static initialized
 206      * in the dummy context in glxext.c
 207      */
 208     /*@{*/
 209     GLubyte *buf;
 210     GLubyte *pc;
 211     GLubyte *limit;
 212     GLubyte *bufEnd;
 213     GLint bufSize;
 214     /*@}*/
 215
 216     /**
 217      * The XID of this rendering context.  When the context is created a
 218      * new XID is allocated.  This is set to None when the context is
 219      * destroyed but is still current to some thread. In this case the
 220      * context will be freed on next MakeCurrent.
 221      */
 222     XID xid;
 223
 224     /**
 225      * The XID of the \c shareList context.
 226      */
 227     XID share_xid;
 228
 229     /**
 230      * Visual id.
 231      *
 232      * \deprecated
 233      * This filed has been largely been replaced by the \c mode field, but
 234      * the work is not quite done.
 235      */
 236     VisualID vid;
 237
 238     /**
 239      * Screen number.
 240      */
 241     GLint screen;
 242
 243     /**
 244      * \c GL_TRUE if the context was created with ImportContext, which
 245      * means the server-side context was created by another X client.
 246      */
 247     GLboolean imported;
 248
 249     /**
 250      * The context tag returned by MakeCurrent when this context is made
 251      * current. This tag is used to identify the context that a thread has
 252      * current so that proper server context management can be done.  It is
 253      * used for all context specific commands (i.e., \c Render, \c RenderLarge,
 254      * \c WaitX, \c WaitGL, \c UseXFont, and \c MakeCurrent (for the old
 255      * context)).
 256      */
 257     GLXContextTag currentContextTag;
 258
 259     /**
 260      * \name Rendering mode
 261      *
 262      * The rendering mode is kept on the client as well as the server.
 263      * When \c glRenderMode is called, the buffer associated with the
 264      * previous rendering mode (feedback or select) is filled.
 265      */
 266     /*@{*/
 267     GLenum renderMode;
 268     GLfloat *feedbackBuf;
 269     GLuint *selectBuf;
 270     /*@}*/
 271
 272     /**
 273      * This is \c GL_TRUE if the pixel unpack modes are such that an image
 274      * can be unpacked from the clients memory by just copying.  It may
 275      * still be true that the server will have to do some work.  This
 276      * just promises that a straight copy will fetch the correct bytes.
 277      */
 278     GLboolean fastImageUnpack;
 279
 280     /**
 281      * Fill newImage with the unpacked form of \c oldImage getting it
 282      * ready for transport to the server.
 283      */
 284     void (*fillImage)(__GLXcontext*, GLint, GLint, GLint, GLint, GLenum,
 285                       GLenum, const GLvoid*, GLubyte*, GLubyte*);
 286
 287     /**
 288      * Client side attribs.
 289      */
 290     __GLXattributeMachine attributes;
 291
 292     /**
 293      * Client side error code.  This is set when client side gl API
 294      * routines need to set an error because of a bad enumerant or
 295      * running out of memory, etc.
 296      */
 297     GLenum error;
 298
 299     /**
 300      * Whether this context does direct rendering.
 301      */
 302     Bool isDirect;
 303
 304     /**
 305      * \c dpy of current display for this context.  Will be \c NULL if not
 306      * current to any display, or if this is the "dummy context".
 307      */
 308     Display *currentDpy;
 309
 310     /**
 311      * The current drawable for this context.  Will be None if this
 312      * context is not current to any drawable.  currentReadable is below.
 313      */
 314     GLXDrawable currentDrawable;
 315
 316     /**
 317      * \name GL Constant Strings
 318      *
 319      * Constant strings that describe the server implementation
 320      * These pertain to GL attributes, not to be confused with
 321      * GLX versioning attributes.
 322      */
 323     /*@{*/
 324     GLubyte *vendor;
 325     GLubyte *renderer;
 326     GLubyte *version;
 327     GLubyte *extensions;
 328     /*@}*/
 329
 330     /**
 331      * Record the dpy this context was created on for later freeing
 332      */
 333     Display *createDpy;
 334
 335     /**
 336      * Maximum small render command size.  This is the smaller of 64k and
 337      * the size of the above buffer.
 338      */
 339     GLint maxSmallRenderCommandSize;
 340
 341     /**
 342      * Major opcode for the extension.  Copied here so a lookup isn't
 343      * needed.
 344      */
 345     GLint majorOpcode;
 346
 347 #ifdef GLX_DIRECT_RENDERING
 348     /**
 349      * Per context direct rendering interface functions and data.
 350      */
 351     __DRIcontext driContext;
 352 #endif
 353
 354     /**
 355      * \c GLXFBConfigID used to create this context.  May be \c None.  This
 356      * field has been replaced by the \c mode field.
 357      *
 358      * \since Internal API version 20030317.
 359      *
 360      * \deprecated
 361      * This filed has been largely been replaced by the \c mode field, but
 362      * the work is not quite done.
 363      */
 364     GLXFBConfigID  fbconfigID;
 365
 366     /**
 367      * The current read-drawable for this context.  Will be None if this
 368      * context is not current to any drawable.
 369      *
 370      * \since Internal API version 20030606.
 371      */
 372     GLXDrawable currentReadable;
 373
 374    /**
 375     * Pointer to client-state data that is private to libGL.  This is only
 376     * used for indirect rendering contexts.
 377     *
 378     * No internal API version change was made for this change.  Client-side
 379     * drivers should NEVER use this data or even care that it exists.
 380     */
 381    void * client_state_private;
 382
 383    /**
 384     * Stored value for \c glXQueryContext attribute \c GLX_RENDER_TYPE.
 385     */
 386    int renderType;
 387
 388    /**
 389     * \name Raw server GL version
 390     *
 391     * True core GL version supported by the server.  This is the raw value
 392     * returned by the server, and it may not reflect what is actually
 393     * supported (or reported) by the client-side library.
 394     */
 395     /*@{*/
 396    int server_major;        /**< Major version number. */
 397    int server_minor;        /**< Minor version number. */
 398     /*@}*/
 399
 400     char gl_extension_bits[ __GL_EXT_BYTES ];
 401 };
 402
 403 #define __glXSetError(gc,code) \
 404     if (!(gc)->error) {        \
 405         (gc)->error = code;    \
 406     }
 407
 408 extern void __glFreeAttributeState(__GLXcontext *);
 409
 410 /************************************************************************/
 411
 412 /**
 413  * The size of the largest drawing command known to the implementation
 414  * that will use the GLXRender GLX command.  In this case it is
 415  * \c glPolygonStipple.
 416  */
 417 #define __GLX_MAX_SMALL_RENDER_CMD_SIZE 156
 418
 419 /**
 420  * To keep the implementation fast, the code uses a "limit" pointer
 421  * to determine when the drawing command buffer is too full to hold
 422  * another fixed size command.  This constant defines the amount of
 423  * space that must always be available in the drawing command buffer
 424  * at all times for the implementation to work.  It is important that
 425  * the number be just large enough, but not so large as to reduce the
 426  * efficacy of the buffer.  The "+32" is just to keep the code working
 427  * in case somebody counts wrong.
 428  */
 429 #define __GLX_BUFFER_LIMIT_SIZE (__GLX_MAX_SMALL_RENDER_CMD_SIZE + 32)
 430
 431 /**
 432  * This implementation uses a smaller threshold for switching
 433  * to the RenderLarge protocol than the protcol requires so that
 434  * large copies don't occur.
 435  */
 436 #define __GLX_RENDER_CMD_SIZE_LIMIT     4096
 437
 438 /**
 439  * One of these records exists per screen of the display.  It contains
 440  * a pointer to the config data for that screen (if the screen supports GL).
 441  */
 442 typedef struct __GLXscreenConfigsRec {
 443     /**
 444      * GLX extension string reported by the X-server.
 445      */
 446     const char *serverGLXexts;
 447
 448     /**
 449      * GLX extension string to be reported to applications.  This is the
 450      * set of extensions that the application can actually use.
 451      */
 452     char *effectiveGLXexts;
 453
 454 #ifdef GLX_DIRECT_RENDERING
 455     /**
 456      * Per screen direct rendering interface functions and data.
 457      */
 458     __DRIscreen driScreen;
 459 #endif
 460
 461     /**
 462      * Linked list of configurations for this screen.
 463      */
 464     __GLcontextModes *configs;
 465
 466     /**
 467      * Per-screen dynamic GLX extension tracking.  The \c direct_support
 468      * field only contains enough bits for 64 extensions.  Should libGL
 469      * ever need to track more than 64 GLX extensions, we can safely grow
 470      * this field.  The \c __GLXscreenConfigs structure is not used outside
 471      * libGL.
 472      */
 473     /*@{*/
 474     unsigned char direct_support[8];
 475     GLboolean ext_list_first_time;
 476     /*@}*/
 477
 478 } __GLXscreenConfigs;
 479
 480 /**
 481  * Per display private data.  One of these records exists for each display
 482  * that is using the OpenGL (GLX) extension.
 483  */
 484 struct __GLXdisplayPrivateRec {
 485     /**
 486      * Back pointer to the display
 487      */
 488     Display *dpy;
 489
 490     /**
 491      * The \c majorOpcode is common to all connections to the same server.
 492      * It is also copied into the context structure.
 493      */
 494     int majorOpcode;
 495
 496     /**
 497      * \name Server Version
 498      *
 499      * Major and minor version returned by the server during initialization.
 500      */
 501     /*@{*/
 502     int majorVersion, minorVersion;
 503     /*@}*/
 504
 505     /**
 506      * \name Storage for the servers GLX vendor and versions strings.
 507      *
 508      * These are the same for all screens on this display. These fields will
 509      * be filled in on demand.
 510      */
 511     /*@{*/
 512     const char *serverGLXvendor;
 513     const char *serverGLXversion;
 514     /*@}*/
 515
 516     /**
 517      * Configurations of visuals for all screens on this display.
 518      * Also, per screen data which now includes the server \c GLX_EXTENSION
 519      * string.
 520      */
 521     __GLXscreenConfigs *screenConfigs;
 522
 523 #ifdef GLX_DIRECT_RENDERING
 524     /**
 525      * Per display direct rendering interface functions and data.
 526      */
 527     __DRIdisplay driDisplay;
 528 #endif
 529 };
 530
 531 void __glXFreeContext(__GLXcontext*);
 532
 533 extern GLubyte *__glXFlushRenderBuffer(__GLXcontext*, GLubyte*);
 534
 535 extern void __glXSendLargeChunk(__GLXcontext *gc, GLint requestNumber,
 536                                 GLint totalRequests,
 537                                 const GLvoid * data, GLint dataLen);
 538
 539 extern void __glXSendLargeCommand(__GLXcontext *, const GLvoid *, GLint,
 540                                   const GLvoid *, GLint);
 541
 542 /* Initialize the GLX extension for dpy */
 543 extern __GLXdisplayPrivate *__glXInitialize(Display*);
 544
 545 /************************************************************************/
 546
 547 extern int __glXDebug;
 548
 549 /* This is per-thread storage in an MT environment */
 550 #if defined( USE_XTHREADS ) || defined( PTHREADS )
 551
 552 extern void __glXSetCurrentContext(__GLXcontext *c);
 553
 554 # if defined( GLX_USE_TLS )
 555
 556 extern __thread void * __glX_tls_Context
 557     __attribute__((tls_model("initial-exec")));
 558
 559 #  define __glXGetCurrentContext()      __glX_tls_Context
 560
 561 # else
 562
 563 extern __GLXcontext *__glXGetCurrentContext(void);
 564
 565 # endif /* defined( GLX_USE_TLS ) */
 566
 567 #else
 568
 569 extern __GLXcontext *__glXcurrentContext;
 570 #define __glXGetCurrentContext()        __glXcurrentContext
 571 #define __glXSetCurrentContext(gc)      __glXcurrentContext = gc
 572
 573 #endif /* defined( USE_XTHREADS ) || defined( PTHREADS ) */
 574
 575
 576 /*
 577 ** Global lock for all threads in this address space using the GLX
 578 ** extension
 579 */
 580 #if defined( USE_XTHREADS )
 581 extern xmutex_rec __glXmutex;
 582 #define __glXLock()    xmutex_lock(&__glXmutex)
 583 #define __glXUnlock()  xmutex_unlock(&__glXmutex)
 584 #elif defined( PTHREADS )
 585 extern pthread_mutex_t __glXmutex;
 586 #define __glXLock()    pthread_mutex_lock(&__glXmutex)
 587 #define __glXUnlock()  pthread_mutex_unlock(&__glXmutex)
 588 #else
 589 #define __glXLock()
 590 #define __glXUnlock()
 591 #endif
 592
 593 /*
 594 ** Setup for a command.  Initialize the extension for dpy if necessary.
 595 */
 596 extern CARD8 __glXSetupForCommand(Display *dpy);
 597
 598 /************************************************************************/
 599
 600 /*
 601 ** Data conversion and packing support.
 602 */
 603
 604 extern const GLuint __glXDefaultPixelStore[9];
 605
 606 /* Send an image to the server using RenderLarge. */
 607 extern void __glXSendLargeImage(__GLXcontext *gc, GLint compsize, GLint dim,
 608     GLint width, GLint height, GLint depth, GLenum format, GLenum type,
 609     const GLvoid *src, GLubyte *pc, GLubyte *modes);
 610
 611 /* Return the size, in bytes, of some pixel data */
 612 extern GLint __glImageSize(GLint, GLint, GLint, GLenum, GLenum, GLenum);
 613
 614 /* Return the number of elements per group of a specified format*/
 615 extern GLint __glElementsPerGroup(GLenum format, GLenum type);
 616
 617 /* Return the number of bytes per element, based on the element type (other
 618 ** than GL_BITMAP).
 619 */
 620 extern GLint __glBytesPerElement(GLenum type);
 621
 622 /*
 623 ** Fill the transport buffer with the data from the users buffer,
 624 ** applying some of the pixel store modes (unpack modes) to the data
 625 ** first.  As a side effect of this call, the "modes" field is
 626 ** updated to contain the modes needed by the server to decode the
 627 ** sent data.
 628 */
 629 extern void __glFillImage(__GLXcontext*, GLint, GLint, GLint, GLint, GLenum,
 630                           GLenum, const GLvoid*, GLubyte*, GLubyte*);
 631
 632 /* Copy map data with a stride into a packed buffer */
 633 extern void __glFillMap1f(GLint, GLint, GLint, const GLfloat *, GLubyte *);
 634 extern void __glFillMap1d(GLint, GLint, GLint, const GLdouble *, GLubyte *);
 635 extern void __glFillMap2f(GLint, GLint, GLint, GLint, GLint,
 636                           const GLfloat *, GLfloat *);
 637 extern void __glFillMap2d(GLint, GLint, GLint, GLint, GLint,
 638                           const GLdouble *, GLdouble *);
 639
 640 /*
 641 ** Empty an image out of the reply buffer into the clients memory applying
 642 ** the pack modes to pack back into the clients requested format.
 643 */
 644 extern void __glEmptyImage(__GLXcontext*, GLint, GLint, GLint, GLint, GLenum,
 645                            GLenum, const GLubyte *, GLvoid *);
 646
 647
 648 /*
 649 ** Allocate and Initialize Vertex Array client state
 650 */
 651 extern void __glXInitVertexArrayState(__GLXcontext*);
 652
 653 /*
 654 ** Inform the Server of the major and minor numbers and of the client
 655 ** libraries extension string.
 656 */
 657 extern void __glXClientInfo (  Display *dpy, int opcode );
 658
 659 /************************************************************************/
 660
 661 /*
 662 ** Declarations that should be in Xlib
 663 */
 664 #ifdef __GL_USE_OUR_PROTOTYPES
 665 extern void _XFlush(Display*);
 666 extern Status _XReply(Display*, xReply*, int, Bool);
 667 extern void _XRead(Display*, void*, long);
 668 extern void _XSend(Display*, const void*, long);
 669 #endif
 670
 671
 672 extern void __glXInitializeVisualConfigFromTags( __GLcontextModes *config,
 673     int count, const INT32 *bp, Bool tagged_only, Bool fbconfig_style_tags );
 674
 675 extern char * __glXGetStringFromServer( Display * dpy, int opcode,
 676     CARD32 glxCode, CARD32 for_whom, CARD32 name );
 677
 678 extern char *__glXstrdup(const char *str);
 679
 680
 681 extern const char __glXGLClientVersion[];
 682 extern const char __glXGLClientExtensions[];
 683
 684 /* Determine the internal API version */
 685 extern int __glXGetInternalVersion(void);
 686
 687 /* Get the unadjusted system time */
 688 extern int __glXGetUST( int64_t * ust );
 689
 690 extern Bool __glXGetMscRateOML(Display * dpy, GLXDrawable drawable,
 691     int32_t * numerator, int32_t * denominator);
 692
 693 #endif /* !__GLX_client_h__ */