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 "glxhash.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 __GLXscreenConfigsRec __GLXscreenConfigs;
  75 typedef struct __GLXcontextRec __GLXcontext;
  76 typedef struct __GLXdrawableRec __GLXdrawable;
  77 typedef struct __GLXdisplayPrivateRec __GLXdisplayPrivate;
  78 typedef struct _glapi_table __GLapi;
  79
  80 /************************************************************************/
  81
  82 #ifdef GLX_DIRECT_RENDERING
  83
  84 #define containerOf(ptr, type, member)                  \
  85     (type *)( (char *)ptr - offsetof(type,member) )
  86
  87 #include <GL/internal/dri_interface.h>
  88
  89
  90 /**
  91  * Display dependent methods.  This structure is initialized during the
  92  * \c driCreateDisplay call.
  93  */
  94 typedef struct __GLXDRIdisplayRec __GLXDRIdisplay;
  95 typedef struct __GLXDRIscreenRec __GLXDRIscreen;
  96 typedef struct __GLXDRIdrawableRec __GLXDRIdrawable;
  97 typedef struct __GLXDRIcontextRec __GLXDRIcontext;
  98
  99 #include "glxextensions.h"
 100
 101 struct __GLXDRIdisplayRec {
 102     /**
 103      * Method to destroy the private DRI display data.
 104      */
 105     void (*destroyDisplay)(__GLXDRIdisplay *display);
 106
 107     __GLXDRIscreen *(*createScreen)(__GLXscreenConfigs *psc, int screen,
 108                                     __GLXdisplayPrivate *priv);
 109 };
 110
 111 struct __GLXDRIscreenRec {
 112
 113     void (*destroyScreen)(__GLXscreenConfigs *psc);
 114
 115     __GLXDRIcontext *(*createContext)(__GLXscreenConfigs *psc,
 116                                       const __GLcontextModes *mode,
 117                                       GLXContext gc,
 118                                       GLXContext shareList, int renderType);
 119
 120     __GLXDRIdrawable *(*createDrawable)(__GLXscreenConfigs *psc,
 121                                         XID drawable,
 122                                         GLXDrawable glxDrawable,
 123                                         const __GLcontextModes *modes);
 124 };
 125
 126 struct __GLXDRIcontextRec {
 127     void (*destroyContext)(__GLXDRIcontext *context, __GLXscreenConfigs *psc,
 128                            Display *dpy);
 129     Bool (*bindContext)(__GLXDRIcontext *context,
 130                         __GLXDRIdrawable *pdraw,
 131                         __GLXDRIdrawable *pread);
 132
 133     void (*unbindContext)(__GLXDRIcontext *context);
 134 };
 135
 136 struct __GLXDRIdrawableRec {
 137     void (*destroyDrawable)(__GLXDRIdrawable *drawable);
 138
 139     XID xDrawable;
 140     XID drawable;
 141     __GLXscreenConfigs *psc;
 142     __DRIdrawable *driDrawable;
 143     GLenum textureTarget;
 144 };
 145
 146 /*
 147 ** Function to create and DRI display data and initialize the display
 148 ** dependent methods.
 149 */
 150 extern __GLXDRIdisplay *driCreateDisplay(Display *dpy);
 151 extern __GLXDRIdisplay *dri2CreateDisplay(Display *dpy);
 152
 153 extern void DRI_glXUseXFont( Font font, int first, int count, int listbase );
 154
 155 /*
 156 ** Functions to obtain driver configuration information from a direct
 157 ** rendering client application
 158 */
 159 extern const char *glXGetScreenDriver (Display *dpy, int scrNum);
 160
 161 extern const char *glXGetDriverConfig (const char *driverName);
 162
 163 #endif
 164
 165 /************************************************************************/
 166
 167 #define __GL_CLIENT_ATTRIB_STACK_DEPTH 16
 168
 169 typedef struct __GLXpixelStoreModeRec {
 170     GLboolean swapEndian;
 171     GLboolean lsbFirst;
 172     GLuint rowLength;
 173     GLuint imageHeight;
 174     GLuint imageDepth;
 175     GLuint skipRows;
 176     GLuint skipPixels;
 177     GLuint skipImages;
 178     GLuint alignment;
 179 } __GLXpixelStoreMode;
 180
 181
 182 typedef struct __GLXattributeRec {
 183     GLuint mask;
 184
 185     /**
 186      * Pixel storage state.  Most of the pixel store mode state is kept
 187      * here and used by the client code to manage the packing and
 188      * unpacking of data sent to/received from the server.
 189      */
 190     __GLXpixelStoreMode storePack, storeUnpack;
 191
 192     /**
 193      * Is EXT_vertex_array / GL 1.1 DrawArrays protocol specifically
 194      * disabled?
 195      */
 196     GLboolean NoDrawArraysProtocol;
 197
 198     /**
 199      * Vertex Array storage state.  The vertex array component
 200      * state is stored here and is used to manage the packing of
 201      * DrawArrays data sent to the server.
 202      */
 203     struct array_state_vector * array_state;
 204 } __GLXattribute;
 205
 206 typedef struct __GLXattributeMachineRec {
 207         __GLXattribute *stack[__GL_CLIENT_ATTRIB_STACK_DEPTH];
 208         __GLXattribute **stackPointer;
 209 } __GLXattributeMachine;
 210
 211 /**
 212  * GLX state that needs to be kept on the client.  One of these records
 213  * exist for each context that has been made current by this client.
 214  */
 215 struct __GLXcontextRec {
 216     /**
 217      * \name Drawing command buffer.
 218      *
 219      * Drawing commands are packed into this buffer before being sent as a
 220      * single GLX protocol request.  The buffer is sent when it overflows or
 221      * is flushed by \c __glXFlushRenderBuffer.  \c pc is the next location
 222      * in the buffer to be filled.  \c limit is described above in the buffer
 223      * slop discussion.
 224      *
 225      * Commands that require large amounts of data to be transfered will
 226      * also use this buffer to hold a header that describes the large
 227      * command.
 228      *
 229      * These must be the first 6 fields since they are static initialized
 230      * in the dummy context in glxext.c
 231      */
 232     /*@{*/
 233     GLubyte *buf;
 234     GLubyte *pc;
 235     GLubyte *limit;
 236     GLubyte *bufEnd;
 237     GLint bufSize;
 238     /*@}*/
 239
 240     /**
 241      * The XID of this rendering context.  When the context is created a
 242      * new XID is allocated.  This is set to None when the context is
 243      * destroyed but is still current to some thread. In this case the
 244      * context will be freed on next MakeCurrent.
 245      */
 246     XID xid;
 247
 248     /**
 249      * The XID of the \c shareList context.
 250      */
 251     XID share_xid;
 252
 253     /**
 254      * Screen number.
 255      */
 256     GLint screen;
 257     __GLXscreenConfigs *psc;
 258
 259     /**
 260      * \c GL_TRUE if the context was created with ImportContext, which
 261      * means the server-side context was created by another X client.
 262      */
 263     GLboolean imported;
 264
 265     /**
 266      * The context tag returned by MakeCurrent when this context is made
 267      * current. This tag is used to identify the context that a thread has
 268      * current so that proper server context management can be done.  It is
 269      * used for all context specific commands (i.e., \c Render, \c RenderLarge,
 270      * \c WaitX, \c WaitGL, \c UseXFont, and \c MakeCurrent (for the old
 271      * context)).
 272      */
 273     GLXContextTag currentContextTag;
 274
 275     /**
 276      * \name Rendering mode
 277      *
 278      * The rendering mode is kept on the client as well as the server.
 279      * When \c glRenderMode is called, the buffer associated with the
 280      * previous rendering mode (feedback or select) is filled.
 281      */
 282     /*@{*/
 283     GLenum renderMode;
 284     GLfloat *feedbackBuf;
 285     GLuint *selectBuf;
 286     /*@}*/
 287
 288     /**
 289      * This is \c GL_TRUE if the pixel unpack modes are such that an image
 290      * can be unpacked from the clients memory by just copying.  It may
 291      * still be true that the server will have to do some work.  This
 292      * just promises that a straight copy will fetch the correct bytes.
 293      */
 294     GLboolean fastImageUnpack;
 295
 296     /**
 297      * Fill newImage with the unpacked form of \c oldImage getting it
 298      * ready for transport to the server.
 299      */
 300     void (*fillImage)(__GLXcontext*, GLint, GLint, GLint, GLint, GLenum,
 301                       GLenum, const GLvoid*, GLubyte*, GLubyte*);
 302
 303     /**
 304      * Client side attribs.
 305      */
 306     __GLXattributeMachine attributes;
 307
 308     /**
 309      * Client side error code.  This is set when client side gl API
 310      * routines need to set an error because of a bad enumerant or
 311      * running out of memory, etc.
 312      */
 313     GLenum error;
 314
 315     /**
 316      * Whether this context does direct rendering.
 317      */
 318     Bool isDirect;
 319
 320     /**
 321      * \c dpy of current display for this context.  Will be \c NULL if not
 322      * current to any display, or if this is the "dummy context".
 323      */
 324     Display *currentDpy;
 325
 326     /**
 327      * The current drawable for this context.  Will be None if this
 328      * context is not current to any drawable.  currentReadable is below.
 329      */
 330     GLXDrawable currentDrawable;
 331
 332     /**
 333      * \name GL Constant Strings
 334      *
 335      * Constant strings that describe the server implementation
 336      * These pertain to GL attributes, not to be confused with
 337      * GLX versioning attributes.
 338      */
 339     /*@{*/
 340     GLubyte *vendor;
 341     GLubyte *renderer;
 342     GLubyte *version;
 343     GLubyte *extensions;
 344     /*@}*/
 345
 346     /**
 347      * Record the dpy this context was created on for later freeing
 348      */
 349     Display *createDpy;
 350
 351     /**
 352      * Maximum small render command size.  This is the smaller of 64k and
 353      * the size of the above buffer.
 354      */
 355     GLint maxSmallRenderCommandSize;
 356
 357     /**
 358      * Major opcode for the extension.  Copied here so a lookup isn't
 359      * needed.
 360      */
 361     GLint majorOpcode;
 362
 363     /**
 364      * Pointer to the mode used to create this context.
 365      */
 366     const __GLcontextModes * mode;
 367
 368 #ifdef GLX_DIRECT_RENDERING
 369     __GLXDRIcontext *driContext;
 370     __DRIcontext *__driContext;
 371 #endif
 372
 373     /**
 374      * The current read-drawable for this context.  Will be None if this
 375      * context is not current to any drawable.
 376      *
 377      * \since Internal API version 20030606.
 378      */
 379     GLXDrawable currentReadable;
 380
 381    /**
 382     * Pointer to client-state data that is private to libGL.  This is only
 383     * used for indirect rendering contexts.
 384     *
 385     * No internal API version change was made for this change.  Client-side
 386     * drivers should NEVER use this data or even care that it exists.
 387     */
 388    void * client_state_private;
 389
 390    /**
 391     * Stored value for \c glXQueryContext attribute \c GLX_RENDER_TYPE.
 392     */
 393    int renderType;
 394
 395    /**
 396     * \name Raw server GL version
 397     *
 398     * True core GL version supported by the server.  This is the raw value
 399     * returned by the server, and it may not reflect what is actually
 400     * supported (or reported) by the client-side library.
 401     */
 402     /*@{*/
 403    int server_major;        /**< Major version number. */
 404    int server_minor;        /**< Minor version number. */
 405     /*@}*/
 406
 407     char gl_extension_bits[ __GL_EXT_BYTES ];
 408 };
 409
 410 #define __glXSetError(gc,code) \
 411     if (!(gc)->error) {        \
 412         (gc)->error = code;    \
 413     }
 414
 415 extern void __glFreeAttributeState(__GLXcontext *);
 416
 417 /************************************************************************/
 418
 419 /**
 420  * The size of the largest drawing command known to the implementation
 421  * that will use the GLXRender GLX command.  In this case it is
 422  * \c glPolygonStipple.
 423  */
 424 #define __GLX_MAX_SMALL_RENDER_CMD_SIZE 156
 425
 426 /**
 427  * To keep the implementation fast, the code uses a "limit" pointer
 428  * to determine when the drawing command buffer is too full to hold
 429  * another fixed size command.  This constant defines the amount of
 430  * space that must always be available in the drawing command buffer
 431  * at all times for the implementation to work.  It is important that
 432  * the number be just large enough, but not so large as to reduce the
 433  * efficacy of the buffer.  The "+32" is just to keep the code working
 434  * in case somebody counts wrong.
 435  */
 436 #define __GLX_BUFFER_LIMIT_SIZE (__GLX_MAX_SMALL_RENDER_CMD_SIZE + 32)
 437
 438 /**
 439  * This implementation uses a smaller threshold for switching
 440  * to the RenderLarge protocol than the protcol requires so that
 441  * large copies don't occur.
 442  */
 443 #define __GLX_RENDER_CMD_SIZE_LIMIT     4096
 444
 445 /**
 446  * One of these records exists per screen of the display.  It contains
 447  * a pointer to the config data for that screen (if the screen supports GL).
 448  */
 449 struct __GLXscreenConfigsRec {
 450     /**
 451      * GLX extension string reported by the X-server.
 452      */
 453     const char *serverGLXexts;
 454
 455     /**
 456      * GLX extension string to be reported to applications.  This is the
 457      * set of extensions that the application can actually use.
 458      */
 459     char *effectiveGLXexts;
 460
 461 #ifdef GLX_DIRECT_RENDERING
 462     /**
 463      * Per screen direct rendering interface functions and data.
 464      */
 465     __DRIscreen *__driScreen;
 466     const __DRIcoreExtension *core;
 467     const __DRIlegacyExtension *legacy;
 468     __glxHashTable *drawHash;
 469     Display *dpy;
 470     int scr, fd;
 471     void *driver;
 472
 473     __GLXDRIscreen *driScreen;
 474
 475 #ifdef __DRI_COPY_SUB_BUFFER
 476     const __DRIcopySubBufferExtension *copySubBuffer;
 477 #endif
 478
 479 #ifdef __DRI_SWAP_CONTROL
 480     const __DRIswapControlExtension *swapControl;
 481 #endif
 482
 483 #ifdef __DRI_ALLOCATE
 484     const __DRIallocateExtension *allocate;
 485 #endif
 486
 487 #ifdef __DRI_FRAME_TRACKING
 488     const __DRIframeTrackingExtension *frameTracking;
 489 #endif
 490
 491 #ifdef __DRI_MEDIA_STREAM_COUNTER
 492     const __DRImediaStreamCounterExtension *msc;
 493 #endif
 494
 495 #ifdef __DRI_TEX_BUFFER
 496     const __DRItexBufferExtension *texBuffer;
 497 #endif
 498
 499 #endif
 500
 501     /**
 502      * Linked list of glx visuals and  fbconfigs for this screen.
 503      */
 504     __GLcontextModes *visuals, *configs;
 505
 506     /**
 507      * Per-screen dynamic GLX extension tracking.  The \c direct_support
 508      * field only contains enough bits for 64 extensions.  Should libGL
 509      * ever need to track more than 64 GLX extensions, we can safely grow
 510      * this field.  The \c __GLXscreenConfigs structure is not used outside
 511      * libGL.
 512      */
 513     /*@{*/
 514     unsigned char direct_support[8];
 515     GLboolean ext_list_first_time;
 516     /*@}*/
 517
 518 };
 519
 520 /**
 521  * Per display private data.  One of these records exists for each display
 522  * that is using the OpenGL (GLX) extension.
 523  */
 524 struct __GLXdisplayPrivateRec {
 525     /**
 526      * Back pointer to the display
 527      */
 528     Display *dpy;
 529
 530     /**
 531      * The \c majorOpcode is common to all connections to the same server.
 532      * It is also copied into the context structure.
 533      */
 534     int majorOpcode;
 535
 536     /**
 537      * \name Server Version
 538      *
 539      * Major and minor version returned by the server during initialization.
 540      */
 541     /*@{*/
 542     int majorVersion, minorVersion;
 543     /*@}*/
 544
 545     /**
 546      * \name Storage for the servers GLX vendor and versions strings.
 547      *
 548      * These are the same for all screens on this display. These fields will
 549      * be filled in on demand.
 550      */
 551     /*@{*/
 552     const char *serverGLXvendor;
 553     const char *serverGLXversion;
 554     /*@}*/
 555
 556     /**
 557      * Configurations of visuals for all screens on this display.
 558      * Also, per screen data which now includes the server \c GLX_EXTENSION
 559      * string.
 560      */
 561     __GLXscreenConfigs *screenConfigs;
 562
 563 #ifdef GLX_DIRECT_RENDERING
 564     /**
 565      * Per display direct rendering interface functions and data.
 566      */
 567     __GLXDRIdisplay *driDisplay;
 568     __GLXDRIdisplay *dri2Display;
 569 #endif
 570 };
 571
 572
 573 extern GLubyte *__glXFlushRenderBuffer(__GLXcontext*, GLubyte*);
 574
 575 extern void __glXSendLargeChunk(__GLXcontext *gc, GLint requestNumber,
 576                                 GLint totalRequests,
 577                                 const GLvoid * data, GLint dataLen);
 578
 579 extern void __glXSendLargeCommand(__GLXcontext *, const GLvoid *, GLint,
 580                                   const GLvoid *, GLint);
 581
 582 /* Initialize the GLX extension for dpy */
 583 extern __GLXdisplayPrivate *__glXInitialize(Display*);
 584
 585 /************************************************************************/
 586
 587 extern int __glXDebug;
 588
 589 /* This is per-thread storage in an MT environment */
 590 #if defined( USE_XTHREADS ) || defined( PTHREADS )
 591
 592 extern void __glXSetCurrentContext(__GLXcontext *c);
 593
 594 # if defined( GLX_USE_TLS )
 595
 596 extern __thread void * __glX_tls_Context
 597     __attribute__((tls_model("initial-exec")));
 598
 599 #  define __glXGetCurrentContext()      __glX_tls_Context
 600
 601 # else
 602
 603 extern __GLXcontext *__glXGetCurrentContext(void);
 604
 605 # endif /* defined( GLX_USE_TLS ) */
 606
 607 #else
 608
 609 extern __GLXcontext *__glXcurrentContext;
 610 #define __glXGetCurrentContext()        __glXcurrentContext
 611 #define __glXSetCurrentContext(gc)      __glXcurrentContext = gc
 612
 613 #endif /* defined( USE_XTHREADS ) || defined( PTHREADS ) */
 614
 615 extern void __glXSetCurrentContextNull(void);
 616
 617 extern void __glXFreeContext(__GLXcontext*);
 618
 619
 620 /*
 621 ** Global lock for all threads in this address space using the GLX
 622 ** extension
 623 */
 624 #if defined( USE_XTHREADS )
 625 extern xmutex_rec __glXmutex;
 626 #define __glXLock()    xmutex_lock(&__glXmutex)
 627 #define __glXUnlock()  xmutex_unlock(&__glXmutex)
 628 #elif defined( PTHREADS )
 629 extern pthread_mutex_t __glXmutex;
 630 #define __glXLock()    pthread_mutex_lock(&__glXmutex)
 631 #define __glXUnlock()  pthread_mutex_unlock(&__glXmutex)
 632 #else
 633 #define __glXLock()
 634 #define __glXUnlock()
 635 #endif
 636
 637 /*
 638 ** Setup for a command.  Initialize the extension for dpy if necessary.
 639 */
 640 extern CARD8 __glXSetupForCommand(Display *dpy);
 641
 642 /************************************************************************/
 643
 644 /*
 645 ** Data conversion and packing support.
 646 */
 647
 648 extern const GLuint __glXDefaultPixelStore[9];
 649
 650 /* Send an image to the server using RenderLarge. */
 651 extern void __glXSendLargeImage(__GLXcontext *gc, GLint compsize, GLint dim,
 652     GLint width, GLint height, GLint depth, GLenum format, GLenum type,
 653     const GLvoid *src, GLubyte *pc, GLubyte *modes);
 654
 655 /* Return the size, in bytes, of some pixel data */
 656 extern GLint __glImageSize(GLint, GLint, GLint, GLenum, GLenum, GLenum);
 657
 658 /* Return the number of elements per group of a specified format*/
 659 extern GLint __glElementsPerGroup(GLenum format, GLenum type);
 660
 661 /* Return the number of bytes per element, based on the element type (other
 662 ** than GL_BITMAP).
 663 */
 664 extern GLint __glBytesPerElement(GLenum type);
 665
 666 /*
 667 ** Fill the transport buffer with the data from the users buffer,
 668 ** applying some of the pixel store modes (unpack modes) to the data
 669 ** first.  As a side effect of this call, the "modes" field is
 670 ** updated to contain the modes needed by the server to decode the
 671 ** sent data.
 672 */
 673 extern void __glFillImage(__GLXcontext*, GLint, GLint, GLint, GLint, GLenum,
 674                           GLenum, const GLvoid*, GLubyte*, GLubyte*);
 675
 676 /* Copy map data with a stride into a packed buffer */
 677 extern void __glFillMap1f(GLint, GLint, GLint, const GLfloat *, GLubyte *);
 678 extern void __glFillMap1d(GLint, GLint, GLint, const GLdouble *, GLubyte *);
 679 extern void __glFillMap2f(GLint, GLint, GLint, GLint, GLint,
 680                           const GLfloat *, GLfloat *);
 681 extern void __glFillMap2d(GLint, GLint, GLint, GLint, GLint,
 682                           const GLdouble *, GLdouble *);
 683
 684 /*
 685 ** Empty an image out of the reply buffer into the clients memory applying
 686 ** the pack modes to pack back into the clients requested format.
 687 */
 688 extern void __glEmptyImage(__GLXcontext*, GLint, GLint, GLint, GLint, GLenum,
 689                            GLenum, const GLubyte *, GLvoid *);
 690
 691
 692 /*
 693 ** Allocate and Initialize Vertex Array client state
 694 */
 695 extern void __glXInitVertexArrayState(__GLXcontext*);
 696
 697 /*
 698 ** Inform the Server of the major and minor numbers and of the client
 699 ** libraries extension string.
 700 */
 701 extern void __glXClientInfo (  Display *dpy, int opcode );
 702
 703 /************************************************************************/
 704
 705 /*
 706 ** Declarations that should be in Xlib
 707 */
 708 #ifdef __GL_USE_OUR_PROTOTYPES
 709 extern void _XFlush(Display*);
 710 extern Status _XReply(Display*, xReply*, int, Bool);
 711 extern void _XRead(Display*, void*, long);
 712 extern void _XSend(Display*, const void*, long);
 713 #endif
 714
 715
 716 extern void __glXInitializeVisualConfigFromTags( __GLcontextModes *config,
 717     int count, const INT32 *bp, Bool tagged_only, Bool fbconfig_style_tags );
 718
 719 extern char * __glXGetStringFromServer( Display * dpy, int opcode,
 720     CARD32 glxCode, CARD32 for_whom, CARD32 name );
 721
 722 extern char *__glXstrdup(const char *str);
 723
 724
 725 extern const char __glXGLClientVersion[];
 726 extern const char __glXGLClientExtensions[];
 727
 728 /* Get the unadjusted system time */
 729 extern int __glXGetUST( int64_t * ust );
 730
 731 extern GLboolean __glXGetMscRateOML(Display * dpy, GLXDrawable drawable,
 732                                     int32_t * numerator, int32_t * denominator);
 733
 734 #ifdef GLX_DIRECT_RENDERING
 735 GLboolean
 736 __driGetMscRateOML(__DRIdrawable *draw,
 737                    int32_t *numerator, int32_t *denominator, void *private);
 738 #endif
 739
 740 #endif /* !__GLX_client_h__ */