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