src/glx/x11/glxclient.h

   1 /* -*- mode: c; tab-width: 3; indent-tabs-mode: nil; c-basic-offset: 3; coding: utf-8-unix -*- */
   2 /*
   3  * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
   4  * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice including the dates of first publication and
  14  * either this permission notice or a reference to
  15  * http://oss.sgi.com/projects/FreeB/
  16  * shall be included in all copies or substantial portions of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  21  * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  22  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
  23  * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  24  * SOFTWARE.
  25  *
  26  * Except as contained in this notice, the name of Silicon Graphics, Inc.
  27  * shall not be used in advertising or otherwise to promote the sale, use or
  28  * other dealings in this Software without prior written authorization from
  29  * Silicon Graphics, Inc.
  30  */
  31
  32 /**
  33  * \file glxclient.h
  34  * Direct rendering support added by Precision Insight, Inc.
  35  *
  36  * \author Kevin E. Martin <kevin@precisioninsight.com>
  37  */
  38
  39 #ifndef _GLX_client_h_
  40 #define _GLX_client_h_
  41 #define NEED_REPLIES
  42 #define NEED_EVENTS
  43 #include <X11/Xproto.h>
  44 #include <X11/Xlibint.h>
  45 #define GLX_GLXEXT_PROTOTYPES
  46 #include <GL/glx.h>
  47 #include <GL/glxext.h>
  48 #include <string.h>
  49 #include <stdlib.h>
  50 #include <stdio.h>
  51 #ifdef WIN32
  52 #include <stdint.h>
  53 #endif
  54 #include "GL/glxint.h"
  55 #include "GL/glxproto.h"
  56 #include "GL/internal/glcore.h"
  57 #include "glapi/glapitable.h"
  58 #include "glxhash.h"
  59 #if defined( USE_XTHREADS )
  60 # include <X11/Xthreads.h>
  61 #elif defined( PTHREADS )
  62 # include <pthread.h>
  63 #endif
  64
  65 #include "glxextensions.h"
  66
  67
  68 /* If we build the library with gcc's -fvisibility=hidden flag, we'll
  69  * use the PUBLIC macro to mark functions that are to be exported.
  70  *
  71  * We also need to define a USED attribute, so the optimizer doesn't
  72  * inline a static function that we later use in an alias. - ajax
  73  */
  74 #if defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__) >= 303
  75 #  define PUBLIC __attribute__((visibility("default")))
  76 #  define USED __attribute__((used))
  77 #else
  78 #  define PUBLIC
  79 #  define USED
  80 #endif
  81
  82
  83
  84 #define GLX_MAJOR_VERSION       1       /* current version numbers */
  85 #define GLX_MINOR_VERSION       4
  86
  87 #define __GLX_MAX_TEXTURE_UNITS 32
  88
  89 typedef struct __GLXscreenConfigsRec __GLXscreenConfigs;
  90 typedef struct __GLXcontextRec __GLXcontext;
  91 typedef struct __GLXdrawableRec __GLXdrawable;
  92 typedef struct __GLXdisplayPrivateRec __GLXdisplayPrivate;
  93 typedef struct _glapi_table __GLapi;
  94
  95 /************************************************************************/
  96
  97 #ifdef GLX_DIRECT_RENDERING
  98
  99 #define containerOf(ptr, type, member)                  \
 100     (type *)( (char *)ptr - offsetof(type,member) )
 101
 102 #include <GL/internal/dri_interface.h>
 103
 104
 105 /**
 106  * Display dependent methods.  This structure is initialized during the
 107  * \c driCreateDisplay call.
 108  */
 109 typedef struct __GLXDRIdisplayRec __GLXDRIdisplay;
 110 typedef struct __GLXDRIscreenRec __GLXDRIscreen;
 111 typedef struct __GLXDRIdrawableRec __GLXDRIdrawable;
 112 typedef struct __GLXDRIcontextRec __GLXDRIcontext;
 113
 114 #include "glxextensions.h"
 115
 116 struct __GLXDRIdisplayRec {
 117     /**
 118      * Method to destroy the private DRI display data.
 119      */
 120     void (*destroyDisplay)(__GLXDRIdisplay *display);
 121
 122     __GLXDRIscreen *(*createScreen)(__GLXscreenConfigs *psc, int screen,
 123                                     __GLXdisplayPrivate *priv);
 124 };
 125
 126 struct __GLXDRIscreenRec {
 127
 128     void (*destroyScreen)(__GLXscreenConfigs *psc);
 129
 130     __GLXDRIcontext *(*createContext)(__GLXscreenConfigs *psc,
 131                                       const __GLcontextModes *mode,
 132                                       GLXContext gc,
 133                                       GLXContext shareList, int renderType);
 134
 135     __GLXDRIdrawable *(*createDrawable)(__GLXscreenConfigs *psc,
 136                                         XID drawable,
 137                                         GLXDrawable glxDrawable,
 138                                         const __GLcontextModes *modes);
 139
 140     void (*swapBuffers)(__GLXDRIdrawable *pdraw);
 141 };
 142
 143 struct __GLXDRIcontextRec {
 144     void (*destroyContext)(__GLXDRIcontext *context, __GLXscreenConfigs *psc,
 145                            Display *dpy);
 146     Bool (*bindContext)(__GLXDRIcontext *context,
 147                         __GLXDRIdrawable *pdraw,
 148                         __GLXDRIdrawable *pread);
 149
 150     void (*unbindContext)(__GLXDRIcontext *context);
 151 };
 152
 153 struct __GLXDRIdrawableRec {
 154     void (*destroyDrawable)(__GLXDRIdrawable *drawable);
 155
 156     XID xDrawable;
 157     XID drawable;
 158     __GLXscreenConfigs *psc;
 159     GLenum textureTarget;
 160     __DRIdrawable *driDrawable;
 161 };
 162
 163 /*
 164 ** Function to create and DRI display data and initialize the display
 165 ** dependent methods.
 166 */
 167 extern __GLXDRIdisplay *driswCreateDisplay(Display *dpy);
 168 extern __GLXDRIdisplay *driCreateDisplay(Display *dpy);
 169 extern __GLXDRIdisplay *dri2CreateDisplay(Display *dpy);
 170
 171 extern void DRI_glXUseXFont( Font font, int first, int count, int listbase );
 172
 173 /*
 174 ** Functions to obtain driver configuration information from a direct
 175 ** rendering client application
 176 */
 177 extern const char *glXGetScreenDriver (Display *dpy, int scrNum);
 178
 179 extern const char *glXGetDriverConfig (const char *driverName);
 180
 181 #endif
 182
 183 /************************************************************************/
 184
 185 #define __GL_CLIENT_ATTRIB_STACK_DEPTH 16
 186
 187 typedef struct __GLXpixelStoreModeRec {
 188     GLboolean swapEndian;
 189     GLboolean lsbFirst;
 190     GLuint rowLength;
 191     GLuint imageHeight;
 192     GLuint imageDepth;
 193     GLuint skipRows;
 194     GLuint skipPixels;
 195     GLuint skipImages;
 196     GLuint alignment;
 197 } __GLXpixelStoreMode;
 198
 199
 200 typedef struct __GLXattributeRec {
 201     GLuint mask;
 202
 203     /**
 204      * Pixel storage state.  Most of the pixel store mode state is kept
 205      * here and used by the client code to manage the packing and
 206      * unpacking of data sent to/received from the server.
 207      */
 208     __GLXpixelStoreMode storePack, storeUnpack;
 209
 210     /**
 211      * Is EXT_vertex_array / GL 1.1 DrawArrays protocol specifically
 212      * disabled?
 213      */
 214     GLboolean NoDrawArraysProtocol;
 215
 216     /**
 217      * Vertex Array storage state.  The vertex array component
 218      * state is stored here and is used to manage the packing of
 219      * DrawArrays data sent to the server.
 220      */
 221     struct array_state_vector * array_state;
 222 } __GLXattribute;
 223
 224 typedef struct __GLXattributeMachineRec {
 225         __GLXattribute *stack[__GL_CLIENT_ATTRIB_STACK_DEPTH];
 226         __GLXattribute **stackPointer;
 227 } __GLXattributeMachine;
 228
 229 /**
 230  * GLX state that needs to be kept on the client.  One of these records
 231  * exist for each context that has been made current by this client.
 232  */
 233 struct __GLXcontextRec {
 234     /**
 235      * \name Drawing command buffer.
 236      *
 237      * Drawing commands are packed into this buffer before being sent as a
 238      * single GLX protocol request.  The buffer is sent when it overflows or
 239      * is flushed by \c __glXFlushRenderBuffer.  \c pc is the next location
 240      * in the buffer to be filled.  \c limit is described above in the buffer
 241      * slop discussion.
 242      *
 243      * Commands that require large amounts of data to be transfered will
 244      * also use this buffer to hold a header that describes the large
 245      * command.
 246      *
 247      * These must be the first 6 fields since they are static initialized
 248      * in the dummy context in glxext.c
 249      */
 250     /*@{*/
 251     GLubyte *buf;
 252     GLubyte *pc;
 253     GLubyte *limit;
 254     GLubyte *bufEnd;
 255     GLint bufSize;
 256     /*@}*/
 257
 258     /**
 259      * The XID of this rendering context.  When the context is created a
 260      * new XID is allocated.  This is set to None when the context is
 261      * destroyed but is still current to some thread. In this case the
 262      * context will be freed on next MakeCurrent.
 263      */
 264     XID xid;
 265
 266     /**
 267      * The XID of the \c shareList context.
 268      */
 269     XID share_xid;
 270
 271     /**
 272      * Screen number.
 273      */
 274     GLint screen;
 275     __GLXscreenConfigs *psc;
 276
 277     /**
 278      * \c GL_TRUE if the context was created with ImportContext, which
 279      * means the server-side context was created by another X client.
 280      */
 281     GLboolean imported;
 282
 283     /**
 284      * The context tag returned by MakeCurrent when this context is made
 285      * current. This tag is used to identify the context that a thread has
 286      * current so that proper server context management can be done.  It is
 287      * used for all context specific commands (i.e., \c Render, \c RenderLarge,
 288      * \c WaitX, \c WaitGL, \c UseXFont, and \c MakeCurrent (for the old
 289      * context)).
 290      */
 291     GLXContextTag currentContextTag;
 292
 293     /**
 294      * \name Rendering mode
 295      *
 296      * The rendering mode is kept on the client as well as the server.
 297      * When \c glRenderMode is called, the buffer associated with the
 298      * previous rendering mode (feedback or select) is filled.
 299      */
 300     /*@{*/
 301     GLenum renderMode;
 302     GLfloat *feedbackBuf;
 303     GLuint *selectBuf;
 304     /*@}*/
 305
 306     /**
 307      * This is \c GL_TRUE if the pixel unpack modes are such that an image
 308      * can be unpacked from the clients memory by just copying.  It may
 309      * still be true that the server will have to do some work.  This
 310      * just promises that a straight copy will fetch the correct bytes.
 311      */
 312     GLboolean fastImageUnpack;
 313
 314     /**
 315      * Fill newImage with the unpacked form of \c oldImage getting it
 316      * ready for transport to the server.
 317      */
 318     void (*fillImage)(__GLXcontext*, GLint, GLint, GLint, GLint, GLenum,
 319                       GLenum, const GLvoid*, GLubyte*, GLubyte*);
 320
 321     /**
 322      * Client side attribs.
 323      */
 324     __GLXattributeMachine attributes;
 325
 326     /**
 327      * Client side error code.  This is set when client side gl API
 328      * routines need to set an error because of a bad enumerant or
 329      * running out of memory, etc.
 330      */
 331     GLenum error;
 332
 333     /**
 334      * Whether this context does direct rendering.
 335      */
 336     Bool isDirect;
 337
 338     /**
 339      * \c dpy of current display for this context.  Will be \c NULL if not
 340      * current to any display, or if this is the "dummy context".
 341      */
 342     Display *currentDpy;
 343
 344     /**
 345      * The current drawable for this context.  Will be None if this
 346      * context is not current to any drawable.  currentReadable is below.
 347      */
 348     GLXDrawable currentDrawable;
 349
 350     /**
 351      * \name GL Constant Strings
 352      *
 353      * Constant strings that describe the server implementation
 354      * These pertain to GL attributes, not to be confused with
 355      * GLX versioning attributes.
 356      */
 357     /*@{*/
 358     GLubyte *vendor;
 359     GLubyte *renderer;
 360     GLubyte *version;
 361     GLubyte *extensions;
 362     /*@}*/
 363
 364     /**
 365      * Record the dpy this context was created on for later freeing
 366      */
 367     Display *createDpy;
 368
 369     /**
 370      * Maximum small render command size.  This is the smaller of 64k and
 371      * the size of the above buffer.
 372      */
 373     GLint maxSmallRenderCommandSize;
 374
 375     /**
 376      * Major opcode for the extension.  Copied here so a lookup isn't
 377      * needed.
 378      */
 379     GLint majorOpcode;
 380
 381     /**
 382      * Pointer to the mode used to create this context.
 383      */
 384     const __GLcontextModes * mode;
 385
 386 #ifdef GLX_DIRECT_RENDERING
 387     __GLXDRIcontext *driContext;
 388     __DRIcontext *__driContext;
 389 #endif
 390
 391     /**
 392      * The current read-drawable for this context.  Will be None if this
 393      * context is not current to any drawable.
 394      *
 395      * \since Internal API version 20030606.
 396      */
 397     GLXDrawable currentReadable;
 398
 399    /**
 400     * Pointer to client-state data that is private to libGL.  This is only
 401     * used for indirect rendering contexts.
 402     *
 403     * No internal API version change was made for this change.  Client-side
 404     * drivers should NEVER use this data or even care that it exists.
 405     */
 406    void * client_state_private;
 407
 408    /**
 409     * Stored value for \c glXQueryContext attribute \c GLX_RENDER_TYPE.
 410     */
 411    int renderType;
 412
 413    /**
 414     * \name Raw server GL version
 415     *
 416     * True core GL version supported by the server.  This is the raw value
 417     * returned by the server, and it may not reflect what is actually
 418     * supported (or reported) by the client-side library.
 419     */
 420     /*@{*/
 421    int server_major;        /**< Major version number. */
 422    int server_minor;        /**< Minor version number. */
 423     /*@}*/
 424
 425     char gl_extension_bits[ __GL_EXT_BYTES ];
 426 };
 427
 428 #define __glXSetError(gc,code) \
 429     if (!(gc)->error) {        \
 430         (gc)->error = code;    \
 431     }
 432
 433 extern void __glFreeAttributeState(__GLXcontext *);
 434
 435 /************************************************************************/
 436
 437 /**
 438  * The size of the largest drawing command known to the implementation
 439  * that will use the GLXRender GLX command.  In this case it is
 440  * \c glPolygonStipple.
 441  */
 442 #define __GLX_MAX_SMALL_RENDER_CMD_SIZE 156
 443
 444 /**
 445  * To keep the implementation fast, the code uses a "limit" pointer
 446  * to determine when the drawing command buffer is too full to hold
 447  * another fixed size command.  This constant defines the amount of
 448  * space that must always be available in the drawing command buffer
 449  * at all times for the implementation to work.  It is important that
 450  * the number be just large enough, but not so large as to reduce the
 451  * efficacy of the buffer.  The "+32" is just to keep the code working
 452  * in case somebody counts wrong.
 453  */
 454 #define __GLX_BUFFER_LIMIT_SIZE (__GLX_MAX_SMALL_RENDER_CMD_SIZE + 32)
 455
 456 /**
 457  * This implementation uses a smaller threshold for switching
 458  * to the RenderLarge protocol than the protcol requires so that
 459  * large copies don't occur.
 460  */
 461 #define __GLX_RENDER_CMD_SIZE_LIMIT     4096
 462
 463 /**
 464  * One of these records exists per screen of the display.  It contains
 465  * a pointer to the config data for that screen (if the screen supports GL).
 466  */
 467 struct __GLXscreenConfigsRec {
 468     /**
 469      * GLX extension string reported by the X-server.
 470      */
 471     const char *serverGLXexts;
 472
 473     /**
 474      * GLX extension string to be reported to applications.  This is the
 475      * set of extensions that the application can actually use.
 476      */
 477     char *effectiveGLXexts;
 478
 479 #ifdef GLX_DIRECT_RENDERING
 480     /**
 481      * Per screen direct rendering interface functions and data.
 482      */
 483     __DRIscreen *__driScreen;
 484     const __DRIcoreExtension *core;
 485     const __DRIlegacyExtension *legacy;
 486     const __DRIswrastExtension *swrast;
 487     const __DRIdri2Extension *dri2;
 488     __glxHashTable *drawHash;
 489     Display *dpy;
 490     int scr, fd;
 491     void *driver;
 492
 493     __GLXDRIscreen *driScreen;
 494
 495 #ifdef __DRI_COPY_SUB_BUFFER
 496     const __DRIcopySubBufferExtension *copySubBuffer;
 497 #endif
 498
 499 #ifdef __DRI_SWAP_CONTROL
 500     const __DRIswapControlExtension *swapControl;
 501 #endif
 502
 503 #ifdef __DRI_ALLOCATE
 504     const __DRIallocateExtension *allocate;
 505 #endif
 506
 507 #ifdef __DRI_FRAME_TRACKING
 508     const __DRIframeTrackingExtension *frameTracking;
 509 #endif
 510
 511 #ifdef __DRI_MEDIA_STREAM_COUNTER
 512     const __DRImediaStreamCounterExtension *msc;
 513 #endif
 514
 515 #ifdef __DRI_TEX_BUFFER
 516     const __DRItexBufferExtension *texBuffer;
 517 #endif
 518
 519 #endif
 520
 521     /**
 522      * Linked list of glx visuals and  fbconfigs for this screen.
 523      */
 524     __GLcontextModes *visuals, *configs;
 525
 526     /**
 527      * Per-screen dynamic GLX extension tracking.  The \c direct_support
 528      * field only contains enough bits for 64 extensions.  Should libGL
 529      * ever need to track more than 64 GLX extensions, we can safely grow
 530      * this field.  The \c __GLXscreenConfigs structure is not used outside
 531      * libGL.
 532      */
 533     /*@{*/
 534     unsigned char direct_support[8];
 535     GLboolean ext_list_first_time;
 536     /*@}*/
 537
 538 };
 539
 540 /**
 541  * Per display private data.  One of these records exists for each display
 542  * that is using the OpenGL (GLX) extension.
 543  */
 544 struct __GLXdisplayPrivateRec {
 545     /**
 546      * Back pointer to the display
 547      */
 548     Display *dpy;
 549
 550     /**
 551      * The \c majorOpcode is common to all connections to the same server.
 552      * It is also copied into the context structure.
 553      */
 554     int majorOpcode;
 555
 556     /**
 557      * \name Server Version
 558      *
 559      * Major and minor version returned by the server during initialization.
 560      */
 561     /*@{*/
 562     int majorVersion, minorVersion;
 563     /*@}*/
 564
 565     /**
 566      * \name Storage for the servers GLX vendor and versions strings.
 567      *
 568      * These are the same for all screens on this display. These fields will
 569      * be filled in on demand.
 570      */
 571     /*@{*/
 572     const char *serverGLXvendor;
 573     const char *serverGLXversion;
 574     /*@}*/
 575
 576     /**
 577      * Configurations of visuals for all screens on this display.
 578      * Also, per screen data which now includes the server \c GLX_EXTENSION
 579      * string.
 580      */
 581     __GLXscreenConfigs *screenConfigs;
 582
 583 #ifdef GLX_DIRECT_RENDERING
 584     /**
 585      * Per display direct rendering interface functions and data.
 586      */
 587     __GLXDRIdisplay *driswDisplay;
 588     __GLXDRIdisplay *driDisplay;
 589     __GLXDRIdisplay *dri2Display;
 590 #endif
 591 };
 592
 593
 594 extern GLubyte *__glXFlushRenderBuffer(__GLXcontext*, GLubyte*);
 595
 596 extern void __glXSendLargeChunk(__GLXcontext *gc, GLint requestNumber,
 597                                 GLint totalRequests,
 598                                 const GLvoid * data, GLint dataLen);
 599
 600 extern void __glXSendLargeCommand(__GLXcontext *, const GLvoid *, GLint,
 601                                   const GLvoid *, GLint);
 602
 603 /* Initialize the GLX extension for dpy */
 604 extern __GLXdisplayPrivate *__glXInitialize(Display*);
 605
 606 extern void __glXPreferEGL(int state);
 607
 608 /************************************************************************/
 609
 610 extern int __glXDebug;
 611
 612 /* This is per-thread storage in an MT environment */
 613 #if defined( USE_XTHREADS ) || defined( PTHREADS )
 614
 615 extern void __glXSetCurrentContext(__GLXcontext *c);
 616
 617 # if defined( GLX_USE_TLS )
 618
 619 extern __thread void * __glX_tls_Context
 620     __attribute__((tls_model("initial-exec")));
 621
 622 #  define __glXGetCurrentContext()      __glX_tls_Context
 623
 624 # else
 625
 626 extern __GLXcontext *__glXGetCurrentContext(void);
 627
 628 # endif /* defined( GLX_USE_TLS ) */
 629
 630 #else
 631
 632 extern __GLXcontext *__glXcurrentContext;
 633 #define __glXGetCurrentContext()        __glXcurrentContext
 634 #define __glXSetCurrentContext(gc)      __glXcurrentContext = gc
 635
 636 #endif /* defined( USE_XTHREADS ) || defined( PTHREADS ) */
 637
 638 extern void __glXSetCurrentContextNull(void);
 639
 640 extern void __glXFreeContext(__GLXcontext*);
 641
 642
 643 /*
 644 ** Global lock for all threads in this address space using the GLX
 645 ** extension
 646 */
 647 #if defined( USE_XTHREADS )
 648 extern xmutex_rec __glXmutex;
 649 #define __glXLock()    xmutex_lock(&__glXmutex)
 650 #define __glXUnlock()  xmutex_unlock(&__glXmutex)
 651 #elif defined( PTHREADS )
 652 extern pthread_mutex_t __glXmutex;
 653 #define __glXLock()    pthread_mutex_lock(&__glXmutex)
 654 #define __glXUnlock()  pthread_mutex_unlock(&__glXmutex)
 655 #else
 656 #define __glXLock()
 657 #define __glXUnlock()
 658 #endif
 659
 660 /*
 661 ** Setup for a command.  Initialize the extension for dpy if necessary.
 662 */
 663 extern CARD8 __glXSetupForCommand(Display *dpy);
 664
 665 /************************************************************************/
 666
 667 /*
 668 ** Data conversion and packing support.
 669 */
 670
 671 extern const GLuint __glXDefaultPixelStore[9];
 672
 673 /* Send an image to the server using RenderLarge. */
 674 extern void __glXSendLargeImage(__GLXcontext *gc, GLint compsize, GLint dim,
 675     GLint width, GLint height, GLint depth, GLenum format, GLenum type,
 676     const GLvoid *src, GLubyte *pc, GLubyte *modes);
 677
 678 /* Return the size, in bytes, of some pixel data */
 679 extern GLint __glImageSize(GLint, GLint, GLint, GLenum, GLenum, GLenum);
 680
 681 /* Return the number of elements per group of a specified format*/
 682 extern GLint __glElementsPerGroup(GLenum format, GLenum type);
 683
 684 /* Return the number of bytes per element, based on the element type (other
 685 ** than GL_BITMAP).
 686 */
 687 extern GLint __glBytesPerElement(GLenum type);
 688
 689 /*
 690 ** Fill the transport buffer with the data from the users buffer,
 691 ** applying some of the pixel store modes (unpack modes) to the data
 692 ** first.  As a side effect of this call, the "modes" field is
 693 ** updated to contain the modes needed by the server to decode the
 694 ** sent data.
 695 */
 696 extern void __glFillImage(__GLXcontext*, GLint, GLint, GLint, GLint, GLenum,
 697                           GLenum, const GLvoid*, GLubyte*, GLubyte*);
 698
 699 /* Copy map data with a stride into a packed buffer */
 700 extern void __glFillMap1f(GLint, GLint, GLint, const GLfloat *, GLubyte *);
 701 extern void __glFillMap1d(GLint, GLint, GLint, const GLdouble *, GLubyte *);
 702 extern void __glFillMap2f(GLint, GLint, GLint, GLint, GLint,
 703                           const GLfloat *, GLfloat *);
 704 extern void __glFillMap2d(GLint, GLint, GLint, GLint, GLint,
 705                           const GLdouble *, GLdouble *);
 706
 707 /*
 708 ** Empty an image out of the reply buffer into the clients memory applying
 709 ** the pack modes to pack back into the clients requested format.
 710 */
 711 extern void __glEmptyImage(__GLXcontext*, GLint, GLint, GLint, GLint, GLenum,
 712                            GLenum, const GLubyte *, GLvoid *);
 713
 714
 715 /*
 716 ** Allocate and Initialize Vertex Array client state, and free.
 717 */
 718 extern void __glXInitVertexArrayState(__GLXcontext *);
 719 extern void __glXFreeVertexArrayState(__GLXcontext *);
 720
 721 /*
 722 ** Inform the Server of the major and minor numbers and of the client
 723 ** libraries extension string.
 724 */
 725 extern void __glXClientInfo (  Display *dpy, int opcode );
 726
 727 /************************************************************************/
 728
 729 /*
 730 ** Declarations that should be in Xlib
 731 */
 732 #ifdef __GL_USE_OUR_PROTOTYPES
 733 extern void _XFlush(Display*);
 734 extern Status _XReply(Display*, xReply*, int, Bool);
 735 extern void _XRead(Display*, void*, long);
 736 extern void _XSend(Display*, const void*, long);
 737 #endif
 738
 739
 740 extern void __glXInitializeVisualConfigFromTags( __GLcontextModes *config,
 741     int count, const INT32 *bp, Bool tagged_only, Bool fbconfig_style_tags );
 742
 743 extern char * __glXGetStringFromServer( Display * dpy, int opcode,
 744     CARD32 glxCode, CARD32 for_whom, CARD32 name );
 745
 746 extern char *__glXstrdup(const char *str);
 747
 748
 749 extern const char __glXGLClientVersion[];
 750 extern const char __glXGLClientExtensions[];
 751
 752 /* Get the unadjusted system time */
 753 extern int __glXGetUST( int64_t * ust );
 754
 755 extern GLboolean __glXGetMscRateOML(Display * dpy, GLXDrawable drawable,
 756                                     int32_t * numerator, int32_t * denominator);
 757
 758 #ifdef GLX_DIRECT_RENDERING
 759 GLboolean
 760 __driGetMscRateOML(__DRIdrawable *draw,
 761                    int32_t *numerator, int32_t *denominator, void *private);
 762 #endif
 763
 764 #endif /* !__GLX_client_h__ */