src/glx/x11/glxclient.h

   1 /*
   2  * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
   3  * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice including the dates of first publication and
  13  * either this permission notice or a reference to
  14  * http://oss.sgi.com/projects/FreeB/
  15  * shall be included 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  * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  21  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
  22  * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  23  * SOFTWARE.
  24  *
  25  * Except as contained in this notice, the name of Silicon Graphics, Inc.
  26  * shall not be used in advertising or otherwise to promote the sale, use or
  27  * other dealings in this Software without prior written authorization from
  28  * Silicon Graphics, Inc.
  29  */
  30
  31 /**
  32  * \file glxclient.h
  33  * Direct rendering support added by Precision Insight, Inc.
  34  *
  35  * \author Kevin E. Martin <kevin@precisioninsight.com>
  36  */
  37
  38 #ifndef _GLX_client_h_
  39 #define _GLX_client_h_
  40 #define NEED_REPLIES
  41 #define NEED_EVENTS
  42 #include <X11/Xproto.h>
  43 #include <X11/Xlibint.h>
  44 #define GLX_GLXEXT_PROTOTYPES
  45 #include <GL/glx.h>
  46 #include <GL/glxext.h>
  47 #include <string.h>
  48 #include <stdlib.h>
  49 #include <stdio.h>
  50 #ifdef WIN32
  51 #include <stdint.h>
  52 #endif
  53 #include "GL/glxint.h"
  54 #include "GL/glxproto.h"
  55 #include "GL/internal/glcore.h"
  56 #include "glapi/glapitable.h"
  57 #include "glxhash.h"
  58 #if defined( USE_XTHREADS )
  59 # include <X11/Xthreads.h>
  60 #elif defined( PTHREADS )
  61 # include <pthread.h>
  62 #endif
  63
  64 #include "glxextensions.h"
  65
  66
  67 /* If we build the library with gcc's -fvisibility=hidden flag, we'll
  68  * use the PUBLIC macro to mark functions that are to be exported.
  69  *
  70  * We also need to define a USED attribute, so the optimizer doesn't
  71  * inline a static function that we later use in an alias. - ajax
  72  */
  73 #if defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__) >= 303
  74 #  define PUBLIC __attribute__((visibility("default")))
  75 #  define USED __attribute__((used))
  76 #else
  77 #  define PUBLIC
  78 #  define USED
  79 #endif
  80
  81
  82
  83 #define GLX_MAJOR_VERSION       1       /* current version numbers */
  84 #define GLX_MINOR_VERSION       4
  85
  86 #define __GLX_MAX_TEXTURE_UNITS 32
  87
  88 typedef struct __GLXscreenConfigsRec __GLXscreenConfigs;
  89 typedef struct __GLXcontextRec __GLXcontext;
  90 typedef struct __GLXdrawableRec __GLXdrawable;
  91 typedef struct __GLXdisplayPrivateRec __GLXdisplayPrivate;
  92 typedef struct _glapi_table __GLapi;
  93
  94 /************************************************************************/
  95
  96 #ifdef GLX_DIRECT_RENDERING
  97
  98 #define containerOf(ptr, type, member)                  \
  99     (type *)( (char *)ptr - offsetof(type,member) )
 100
 101 #include <GL/internal/dri_interface.h>
 102
 103
 104 /**
 105  * Display dependent methods.  This structure is initialized during the
 106  * \c driCreateDisplay call.
 107  */
 108 typedef struct __GLXDRIdisplayRec __GLXDRIdisplay;
 109 typedef struct __GLXDRIscreenRec __GLXDRIscreen;
 110 typedef struct __GLXDRIdrawableRec __GLXDRIdrawable;
 111 typedef struct __GLXDRIcontextRec __GLXDRIcontext;
 112
 113 #include "glxextensions.h"
 114
 115 struct __GLXDRIdisplayRec {
 116     /**
 117      * Method to destroy the private DRI display data.
 118      */
 119     void (*destroyDisplay)(__GLXDRIdisplay *display);
 120
 121     __GLXDRIscreen *(*createScreen)(__GLXscreenConfigs *psc, int screen,
 122                                     __GLXdisplayPrivate *priv);
 123 };
 124
 125 struct __GLXDRIscreenRec {
 126
 127     void (*destroyScreen)(__GLXscreenConfigs *psc);
 128
 129     __GLXDRIcontext *(*createContext)(__GLXscreenConfigs *psc,
 130                                       const __GLcontextModes *mode,
 131                                       GLXContext gc,
 132                                       GLXContext shareList, int renderType);
 133
 134     __GLXDRIdrawable *(*createDrawable)(__GLXscreenConfigs *psc,
 135                                         XID drawable,
 136                                         GLXDrawable glxDrawable,
 137                                         const __GLcontextModes *modes);
 138
 139     void (*swapBuffers)(__GLXDRIdrawable *pdraw);
 140 };
 141
 142 struct __GLXDRIcontextRec {
 143     void (*destroyContext)(__GLXDRIcontext *context, __GLXscreenConfigs *psc,
 144                            Display *dpy);
 145     Bool (*bindContext)(__GLXDRIcontext *context,
 146                         __GLXDRIdrawable *pdraw,
 147                         __GLXDRIdrawable *pread);
 148
 149     void (*unbindContext)(__GLXDRIcontext *context);
 150 };
 151
 152 struct __GLXDRIdrawableRec {
 153     void (*destroyDrawable)(__GLXDRIdrawable *drawable);
 154
 155     XID xDrawable;
 156     XID drawable;
 157     __GLXscreenConfigs *psc;
 158     GLenum textureTarget;
 159     __DRIdrawable *driDrawable;
 160 };
 161
 162 /*
 163 ** Function to create and DRI display data and initialize the display
 164 ** dependent methods.
 165 */
 166 extern __GLXDRIdisplay *driswCreateDisplay(Display *dpy);
 167 extern __GLXDRIdisplay *driCreateDisplay(Display *dpy);
 168 extern __GLXDRIdisplay *dri2CreateDisplay(Display *dpy);
 169
 170 extern void DRI_glXUseXFont( Font font, int first, int count, int listbase );
 171
 172 /*
 173 ** Functions to obtain driver configuration information from a direct
 174 ** rendering client application
 175 */
 176 extern const char *glXGetScreenDriver (Display *dpy, int scrNum);
 177
 178 extern const char *glXGetDriverConfig (const char *driverName);
 179
 180 #endif
 181
 182 /************************************************************************/
 183
 184 #define __GL_CLIENT_ATTRIB_STACK_DEPTH 16
 185
 186 typedef struct __GLXpixelStoreModeRec {
 187     GLboolean swapEndian;
 188     GLboolean lsbFirst;
 189     GLuint rowLength;
 190     GLuint imageHeight;
 191     GLuint imageDepth;
 192     GLuint skipRows;
 193     GLuint skipPixels;
 194     GLuint skipImages;
 195     GLuint alignment;
 196 } __GLXpixelStoreMode;
 197
 198
 199 typedef struct __GLXattributeRec {
 200     GLuint mask;
 201
 202     /**
 203      * Pixel storage state.  Most of the pixel store mode state is kept
 204      * here and used by the client code to manage the packing and
 205      * unpacking of data sent to/received from the server.
 206      */
 207     __GLXpixelStoreMode storePack, storeUnpack;
 208
 209     /**
 210      * Is EXT_vertex_array / GL 1.1 DrawArrays protocol specifically
 211      * disabled?
 212      */
 213     GLboolean NoDrawArraysProtocol;
 214
 215     /**
 216      * Vertex Array storage state.  The vertex array component
 217      * state is stored here and is used to manage the packing of
 218      * DrawArrays data sent to the server.
 219      */
 220     struct array_state_vector * array_state;
 221 } __GLXattribute;
 222
 223 typedef struct __GLXattributeMachineRec {
 224         __GLXattribute *stack[__GL_CLIENT_ATTRIB_STACK_DEPTH];
 225         __GLXattribute **stackPointer;
 226 } __GLXattributeMachine;
 227
 228 /**
 229  * GLX state that needs to be kept on the client.  One of these records
 230  * exist for each context that has been made current by this client.
 231  */
 232 struct __GLXcontextRec {
 233     /**
 234      * \name Drawing command buffer.
 235      *
 236      * Drawing commands are packed into this buffer before being sent as a
 237      * single GLX protocol request.  The buffer is sent when it overflows or
 238      * is flushed by \c __glXFlushRenderBuffer.  \c pc is the next location
 239      * in the buffer to be filled.  \c limit is described above in the buffer
 240      * slop discussion.
 241      *
 242      * Commands that require large amounts of data to be transfered will
 243      * also use this buffer to hold a header that describes the large
 244      * command.
 245      *
 246      * These must be the first 6 fields since they are static initialized
 247      * in the dummy context in glxext.c
 248      */
 249     /*@{*/
 250     GLubyte *buf;
 251     GLubyte *pc;
 252     GLubyte *limit;
 253     GLubyte *bufEnd;
 254     GLint bufSize;
 255     /*@}*/
 256
 257     /**
 258      * The XID of this rendering context.  When the context is created a
 259      * new XID is allocated.  This is set to None when the context is
 260      * destroyed but is still current to some thread. In this case the
 261      * context will be freed on next MakeCurrent.
 262      */
 263     XID xid;
 264
 265     /**
 266      * The XID of the \c shareList context.
 267      */
 268     XID share_xid;
 269
 270     /**
 271      * Screen number.
 272      */
 273     GLint screen;
 274     __GLXscreenConfigs *psc;
 275
 276     /**
 277      * \c GL_TRUE if the context was created with ImportContext, which
 278      * means the server-side context was created by another X client.
 279      */
 280     GLboolean imported;
 281
 282     /**
 283      * The context tag returned by MakeCurrent when this context is made
 284      * current. This tag is used to identify the context that a thread has
 285      * current so that proper server context management can be done.  It is
 286      * used for all context specific commands (i.e., \c Render, \c RenderLarge,
 287      * \c WaitX, \c WaitGL, \c UseXFont, and \c MakeCurrent (for the old
 288      * context)).
 289      */
 290     GLXContextTag currentContextTag;
 291
 292     /**
 293      * \name Rendering mode
 294      *
 295      * The rendering mode is kept on the client as well as the server.
 296      * When \c glRenderMode is called, the buffer associated with the
 297      * previous rendering mode (feedback or select) is filled.
 298      */
 299     /*@{*/
 300     GLenum renderMode;
 301     GLfloat *feedbackBuf;
 302     GLuint *selectBuf;
 303     /*@}*/
 304
 305     /**
 306      * This is \c GL_TRUE if the pixel unpack modes are such that an image
 307      * can be unpacked from the clients memory by just copying.  It may
 308      * still be true that the server will have to do some work.  This
 309      * just promises that a straight copy will fetch the correct bytes.
 310      */
 311     GLboolean fastImageUnpack;
 312
 313     /**
 314      * Fill newImage with the unpacked form of \c oldImage getting it
 315      * ready for transport to the server.
 316      */
 317     void (*fillImage)(__GLXcontext*, GLint, GLint, GLint, GLint, GLenum,
 318                       GLenum, const GLvoid*, GLubyte*, GLubyte*);
 319
 320     /**
 321      * Client side attribs.
 322      */
 323     __GLXattributeMachine attributes;
 324
 325     /**
 326      * Client side error code.  This is set when client side gl API
 327      * routines need to set an error because of a bad enumerant or
 328      * running out of memory, etc.
 329      */
 330     GLenum error;
 331
 332     /**
 333      * Whether this context does direct rendering.
 334      */
 335     Bool isDirect;
 336
 337     /**
 338      * \c dpy of current display for this context.  Will be \c NULL if not
 339      * current to any display, or if this is the "dummy context".
 340      */
 341     Display *currentDpy;
 342
 343     /**
 344      * The current drawable for this context.  Will be None if this
 345      * context is not current to any drawable.  currentReadable is below.
 346      */
 347     GLXDrawable currentDrawable;
 348
 349     /**
 350      * \name GL Constant Strings
 351      *
 352      * Constant strings that describe the server implementation
 353      * These pertain to GL attributes, not to be confused with
 354      * GLX versioning attributes.
 355      */
 356     /*@{*/
 357     GLubyte *vendor;
 358     GLubyte *renderer;
 359     GLubyte *version;
 360     GLubyte *extensions;
 361     /*@}*/
 362
 363     /**
 364      * Record the dpy this context was created on for later freeing
 365      */
 366     Display *createDpy;
 367
 368     /**
 369      * Maximum small render command size.  This is the smaller of 64k and
 370      * the size of the above buffer.
 371      */
 372     GLint maxSmallRenderCommandSize;
 373
 374     /**
 375      * Major opcode for the extension.  Copied here so a lookup isn't
 376      * needed.
 377      */
 378     GLint majorOpcode;
 379
 380     /**
 381      * Pointer to the mode used to create this context.
 382      */
 383     const __GLcontextModes * mode;
 384
 385 #ifdef GLX_DIRECT_RENDERING
 386     __GLXDRIcontext *driContext;
 387     __DRIcontext *__driContext;
 388 #endif
 389
 390     /**
 391      * The current read-drawable for this context.  Will be None if this
 392      * context is not current to any drawable.
 393      *
 394      * \since Internal API version 20030606.
 395      */
 396     GLXDrawable currentReadable;
 397
 398    /**
 399     * Pointer to client-state data that is private to libGL.  This is only
 400     * used for indirect rendering contexts.
 401     *
 402     * No internal API version change was made for this change.  Client-side
 403     * drivers should NEVER use this data or even care that it exists.
 404     */
 405    void * client_state_private;
 406
 407    /**
 408     * Stored value for \c glXQueryContext attribute \c GLX_RENDER_TYPE.
 409     */
 410    int renderType;
 411
 412    /**
 413     * \name Raw server GL version
 414     *
 415     * True core GL version supported by the server.  This is the raw value
 416     * returned by the server, and it may not reflect what is actually
 417     * supported (or reported) by the client-side library.
 418     */
 419     /*@{*/
 420    int server_major;        /**< Major version number. */
 421    int server_minor;        /**< Minor version number. */
 422     /*@}*/
 423
 424     char gl_extension_bits[ __GL_EXT_BYTES ];
 425 };
 426
 427 #define __glXSetError(gc,code) \
 428     if (!(gc)->error) {        \
 429         (gc)->error = code;    \
 430     }
 431
 432 extern void __glFreeAttributeState(__GLXcontext *);
 433
 434 /************************************************************************/
 435
 436 /**
 437  * The size of the largest drawing command known to the implementation
 438  * that will use the GLXRender GLX command.  In this case it is
 439  * \c glPolygonStipple.
 440  */
 441 #define __GLX_MAX_SMALL_RENDER_CMD_SIZE 156
 442
 443 /**
 444  * To keep the implementation fast, the code uses a "limit" pointer
 445  * to determine when the drawing command buffer is too full to hold
 446  * another fixed size command.  This constant defines the amount of
 447  * space that must always be available in the drawing command buffer
 448  * at all times for the implementation to work.  It is important that
 449  * the number be just large enough, but not so large as to reduce the
 450  * efficacy of the buffer.  The "+32" is just to keep the code working
 451  * in case somebody counts wrong.
 452  */
 453 #define __GLX_BUFFER_LIMIT_SIZE (__GLX_MAX_SMALL_RENDER_CMD_SIZE + 32)
 454
 455 /**
 456  * This implementation uses a smaller threshold for switching
 457  * to the RenderLarge protocol than the protcol requires so that
 458  * large copies don't occur.
 459  */
 460 #define __GLX_RENDER_CMD_SIZE_LIMIT     4096
 461
 462 /**
 463  * One of these records exists per screen of the display.  It contains
 464  * a pointer to the config data for that screen (if the screen supports GL).
 465  */
 466 struct __GLXscreenConfigsRec {
 467     /**
 468      * GLX extension string reported by the X-server.
 469      */
 470     const char *serverGLXexts;
 471
 472     /**
 473      * GLX extension string to be reported to applications.  This is the
 474      * set of extensions that the application can actually use.
 475      */
 476     char *effectiveGLXexts;
 477
 478 #ifdef GLX_DIRECT_RENDERING
 479     /**
 480      * Per screen direct rendering interface functions and data.
 481      */
 482     __DRIscreen *__driScreen;
 483     const __DRIcoreExtension *core;
 484     const __DRIlegacyExtension *legacy;
 485     const __DRIswrastExtension *swrast;
 486     const __DRIdri2Extension *dri2;
 487     __glxHashTable *drawHash;
 488     Display *dpy;
 489     int scr, fd;
 490     void *driver;
 491
 492     __GLXDRIscreen *driScreen;
 493
 494 #ifdef __DRI_COPY_SUB_BUFFER
 495     const __DRIcopySubBufferExtension *copySubBuffer;
 496 #endif
 497
 498 #ifdef __DRI_SWAP_CONTROL
 499     const __DRIswapControlExtension *swapControl;
 500 #endif
 501
 502 #ifdef __DRI_ALLOCATE
 503     const __DRIallocateExtension *allocate;
 504 #endif
 505
 506 #ifdef __DRI_FRAME_TRACKING
 507     const __DRIframeTrackingExtension *frameTracking;
 508 #endif
 509
 510 #ifdef __DRI_MEDIA_STREAM_COUNTER
 511     const __DRImediaStreamCounterExtension *msc;
 512 #endif
 513
 514 #ifdef __DRI_TEX_BUFFER
 515     const __DRItexBufferExtension *texBuffer;
 516 #endif
 517
 518 #endif
 519
 520     /**
 521      * Linked list of glx visuals and  fbconfigs for this screen.
 522      */
 523     __GLcontextModes *visuals, *configs;
 524
 525     /**
 526      * Per-screen dynamic GLX extension tracking.  The \c direct_support
 527      * field only contains enough bits for 64 extensions.  Should libGL
 528      * ever need to track more than 64 GLX extensions, we can safely grow
 529      * this field.  The \c __GLXscreenConfigs structure is not used outside
 530      * libGL.
 531      */
 532     /*@{*/
 533     unsigned char direct_support[8];
 534     GLboolean ext_list_first_time;
 535     /*@}*/
 536
 537 };
 538
 539 /**
 540  * Per display private data.  One of these records exists for each display
 541  * that is using the OpenGL (GLX) extension.
 542  */
 543 struct __GLXdisplayPrivateRec {
 544     /**
 545      * Back pointer to the display
 546      */
 547     Display *dpy;
 548
 549     /**
 550      * The \c majorOpcode is common to all connections to the same server.
 551      * It is also copied into the context structure.
 552      */
 553     int majorOpcode;
 554
 555     /**
 556      * \name Server Version
 557      *
 558      * Major and minor version returned by the server during initialization.
 559      */
 560     /*@{*/
 561     int majorVersion, minorVersion;
 562     /*@}*/
 563
 564     /**
 565      * \name Storage for the servers GLX vendor and versions strings.
 566      *
 567      * These are the same for all screens on this display. These fields will
 568      * be filled in on demand.
 569      */
 570     /*@{*/
 571     const char *serverGLXvendor;
 572     const char *serverGLXversion;
 573     /*@}*/
 574
 575     /**
 576      * Configurations of visuals for all screens on this display.
 577      * Also, per screen data which now includes the server \c GLX_EXTENSION
 578      * string.
 579      */
 580     __GLXscreenConfigs *screenConfigs;
 581
 582 #ifdef GLX_DIRECT_RENDERING
 583     /**
 584      * Per display direct rendering interface functions and data.
 585      */
 586     __GLXDRIdisplay *driswDisplay;
 587     __GLXDRIdisplay *driDisplay;
 588     __GLXDRIdisplay *dri2Display;
 589 #endif
 590 };
 591
 592
 593 extern GLubyte *__glXFlushRenderBuffer(__GLXcontext*, GLubyte*);
 594
 595 extern void __glXSendLargeChunk(__GLXcontext *gc, GLint requestNumber,
 596                                 GLint totalRequests,
 597                                 const GLvoid * data, GLint dataLen);
 598
 599 extern void __glXSendLargeCommand(__GLXcontext *, const GLvoid *, GLint,
 600                                   const GLvoid *, GLint);
 601
 602 /* Initialize the GLX extension for dpy */
 603 extern __GLXdisplayPrivate *__glXInitialize(Display*);
 604
 605 extern void __glXPreferEGL(int state);
 606
 607 /************************************************************************/
 608
 609 extern int __glXDebug;
 610
 611 /* This is per-thread storage in an MT environment */
 612 #if defined( USE_XTHREADS ) || defined( PTHREADS )
 613
 614 extern void __glXSetCurrentContext(__GLXcontext *c);
 615
 616 # if defined( GLX_USE_TLS )
 617
 618 extern __thread void * __glX_tls_Context
 619     __attribute__((tls_model("initial-exec")));
 620
 621 #  define __glXGetCurrentContext()      __glX_tls_Context
 622
 623 # else
 624
 625 extern __GLXcontext *__glXGetCurrentContext(void);
 626
 627 # endif /* defined( GLX_USE_TLS ) */
 628
 629 #else
 630
 631 extern __GLXcontext *__glXcurrentContext;
 632 #define __glXGetCurrentContext()        __glXcurrentContext
 633 #define __glXSetCurrentContext(gc)      __glXcurrentContext = gc
 634
 635 #endif /* defined( USE_XTHREADS ) || defined( PTHREADS ) */
 636
 637 extern void __glXSetCurrentContextNull(void);
 638
 639 extern void __glXFreeContext(__GLXcontext*);
 640
 641
 642 /*
 643 ** Global lock for all threads in this address space using the GLX
 644 ** extension
 645 */
 646 #if defined( USE_XTHREADS )
 647 extern xmutex_rec __glXmutex;
 648 #define __glXLock()    xmutex_lock(&__glXmutex)
 649 #define __glXUnlock()  xmutex_unlock(&__glXmutex)
 650 #elif defined( PTHREADS )
 651 extern pthread_mutex_t __glXmutex;
 652 #define __glXLock()    pthread_mutex_lock(&__glXmutex)
 653 #define __glXUnlock()  pthread_mutex_unlock(&__glXmutex)
 654 #else
 655 #define __glXLock()
 656 #define __glXUnlock()
 657 #endif
 658
 659 /*
 660 ** Setup for a command.  Initialize the extension for dpy if necessary.
 661 */
 662 extern CARD8 __glXSetupForCommand(Display *dpy);
 663
 664 /************************************************************************/
 665
 666 /*
 667 ** Data conversion and packing support.
 668 */
 669
 670 extern const GLuint __glXDefaultPixelStore[9];
 671
 672 /* Send an image to the server using RenderLarge. */
 673 extern void __glXSendLargeImage(__GLXcontext *gc, GLint compsize, GLint dim,
 674     GLint width, GLint height, GLint depth, GLenum format, GLenum type,
 675     const GLvoid *src, GLubyte *pc, GLubyte *modes);
 676
 677 /* Return the size, in bytes, of some pixel data */
 678 extern GLint __glImageSize(GLint, GLint, GLint, GLenum, GLenum, GLenum);
 679
 680 /* Return the number of elements per group of a specified format*/
 681 extern GLint __glElementsPerGroup(GLenum format, GLenum type);
 682
 683 /* Return the number of bytes per element, based on the element type (other
 684 ** than GL_BITMAP).
 685 */
 686 extern GLint __glBytesPerElement(GLenum type);
 687
 688 /*
 689 ** Fill the transport buffer with the data from the users buffer,
 690 ** applying some of the pixel store modes (unpack modes) to the data
 691 ** first.  As a side effect of this call, the "modes" field is
 692 ** updated to contain the modes needed by the server to decode the
 693 ** sent data.
 694 */
 695 extern void __glFillImage(__GLXcontext*, GLint, GLint, GLint, GLint, GLenum,
 696                           GLenum, const GLvoid*, GLubyte*, GLubyte*);
 697
 698 /* Copy map data with a stride into a packed buffer */
 699 extern void __glFillMap1f(GLint, GLint, GLint, const GLfloat *, GLubyte *);
 700 extern void __glFillMap1d(GLint, GLint, GLint, const GLdouble *, GLubyte *);
 701 extern void __glFillMap2f(GLint, GLint, GLint, GLint, GLint,
 702                           const GLfloat *, GLfloat *);
 703 extern void __glFillMap2d(GLint, GLint, GLint, GLint, GLint,
 704                           const GLdouble *, GLdouble *);
 705
 706 /*
 707 ** Empty an image out of the reply buffer into the clients memory applying
 708 ** the pack modes to pack back into the clients requested format.
 709 */
 710 extern void __glEmptyImage(__GLXcontext*, GLint, GLint, GLint, GLint, GLenum,
 711                            GLenum, const GLubyte *, GLvoid *);
 712
 713
 714 /*
 715 ** Allocate and Initialize Vertex Array client state, and free.
 716 */
 717 extern void __glXInitVertexArrayState(__GLXcontext *);
 718 extern void __glXFreeVertexArrayState(__GLXcontext *);
 719
 720 /*
 721 ** Inform the Server of the major and minor numbers and of the client
 722 ** libraries extension string.
 723 */
 724 extern void __glXClientInfo (  Display *dpy, int opcode );
 725
 726 /************************************************************************/
 727
 728 /*
 729 ** Declarations that should be in Xlib
 730 */
 731 #ifdef __GL_USE_OUR_PROTOTYPES
 732 extern void _XFlush(Display*);
 733 extern Status _XReply(Display*, xReply*, int, Bool);
 734 extern void _XRead(Display*, void*, long);
 735 extern void _XSend(Display*, const void*, long);
 736 #endif
 737
 738
 739 extern void __glXInitializeVisualConfigFromTags( __GLcontextModes *config,
 740     int count, const INT32 *bp, Bool tagged_only, Bool fbconfig_style_tags );
 741
 742 extern char * __glXGetStringFromServer( Display * dpy, int opcode,
 743     CARD32 glxCode, CARD32 for_whom, CARD32 name );
 744
 745 extern char *__glXstrdup(const char *str);
 746
 747
 748 extern const char __glXGLClientVersion[];
 749 extern const char __glXGLClientExtensions[];
 750
 751 /* Get the unadjusted system time */
 752 extern int __glXGetUST( int64_t * ust );
 753
 754 extern GLboolean __glXGetMscRateOML(Display * dpy, GLXDrawable drawable,
 755                                     int32_t * numerator, int32_t * denominator);
 756
 757 #ifdef GLX_DIRECT_RENDERING
 758 GLboolean
 759 __driGetMscRateOML(__DRIdrawable *draw,
 760                    int32_t *numerator, int32_t *denominator, void *private);
 761 #endif
 762
 763 #endif /* !__GLX_client_h__ */