src/glx/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 #include <X11/Xproto.h>
  41 #include <X11/Xlibint.h>
  42 #include <X11/Xfuncproto.h>
  43 #include <X11/extensions/extutil.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/glxproto.h"
  54 #include "glapi/glapitable.h"
  55 #include "glxconfig.h"
  56 #include "glxhash.h"
  57 #if defined( PTHREADS )
  58 # include <pthread.h>
  59 #endif
  60
  61 #include "glxextensions.h"
  62
  63 #define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
  64
  65 #define GLX_MAJOR_VERSION 1       /* current version numbers */
  66 #define GLX_MINOR_VERSION 4
  67
  68 #define __GLX_MAX_TEXTURE_UNITS 32
  69
  70 struct glx_display;
  71 struct glx_context;
  72
  73 /************************************************************************/
  74
  75 #ifdef GLX_DIRECT_RENDERING
  76
  77 extern void DRI_glXUseXFont(struct glx_context *ctx,
  78                             Font font, int first, int count, int listbase);
  79
  80 #endif
  81
  82 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
  83
  84 /**
  85  * Display dependent methods.  This structure is initialized during the
  86  * \c driCreateDisplay call.
  87  */
  88 typedef struct __GLXDRIdisplayRec __GLXDRIdisplay;
  89 typedef struct __GLXDRIscreenRec __GLXDRIscreen;
  90 typedef struct __GLXDRIdrawableRec __GLXDRIdrawable;
  91
  92 #include "glxextensions.h"
  93
  94 struct __GLXDRIdisplayRec
  95 {
  96     /**
  97      * Method to destroy the private DRI display data.
  98      */
  99    void (*destroyDisplay) (__GLXDRIdisplay * display);
 100
 101    struct glx_screen *(*createScreen)(int screen, struct glx_display * priv);
 102 };
 103
 104 struct __GLXDRIscreenRec {
 105
 106    void (*destroyScreen)(struct glx_screen *psc);
 107
 108    struct glx_context *(*createContext)(struct glx_screen *psc,
 109                                         struct glx_config *config,
 110                                         struct glx_context *shareList,
 111                                         int renderType);
 112
 113    __GLXDRIdrawable *(*createDrawable)(struct glx_screen *psc,
 114                                        XID drawable,
 115                                        GLXDrawable glxDrawable,
 116                                        struct glx_config *config);
 117
 118    int64_t (*swapBuffers)(__GLXDRIdrawable *pdraw, int64_t target_msc,
 119                           int64_t divisor, int64_t remainder);
 120    void (*copySubBuffer)(__GLXDRIdrawable *pdraw,
 121                          int x, int y, int width, int height);
 122    int (*getDrawableMSC)(struct glx_screen *psc, __GLXDRIdrawable *pdraw,
 123                          int64_t *ust, int64_t *msc, int64_t *sbc);
 124    int (*waitForMSC)(__GLXDRIdrawable *pdraw, int64_t target_msc,
 125                      int64_t divisor, int64_t remainder, int64_t *ust,
 126                      int64_t *msc, int64_t *sbc);
 127    int (*waitForSBC)(__GLXDRIdrawable *pdraw, int64_t target_sbc, int64_t *ust,
 128                      int64_t *msc, int64_t *sbc);
 129    int (*setSwapInterval)(__GLXDRIdrawable *pdraw, int interval);
 130    int (*getSwapInterval)(__GLXDRIdrawable *pdraw);
 131 };
 132
 133 struct __GLXDRIdrawableRec
 134 {
 135    void (*destroyDrawable) (__GLXDRIdrawable * drawable);
 136
 137    XID xDrawable;
 138    XID drawable;
 139    struct glx_screen *psc;
 140    GLenum textureTarget;
 141    GLenum textureFormat;        /* EXT_texture_from_pixmap support */
 142    unsigned long eventMask;
 143 };
 144
 145 /*
 146 ** Function to create and DRI display data and initialize the display
 147 ** dependent methods.
 148 */
 149 extern __GLXDRIdisplay *driswCreateDisplay(Display * dpy);
 150 extern __GLXDRIdisplay *driCreateDisplay(Display * dpy);
 151 extern __GLXDRIdisplay *dri2CreateDisplay(Display * dpy);
 152 extern void dri2InvalidateBuffers(Display *dpy, XID drawable);
 153 extern unsigned dri2GetSwapEventType(Display *dpy, XID drawable);
 154
 155
 156 /*
 157 ** Functions to obtain driver configuration information from a direct
 158 ** rendering client application
 159 */
 160 extern const char *glXGetScreenDriver(Display * dpy, int scrNum);
 161
 162 extern const char *glXGetDriverConfig(const char *driverName);
 163
 164 #endif
 165
 166 /************************************************************************/
 167
 168 #define __GL_CLIENT_ATTRIB_STACK_DEPTH 16
 169
 170 typedef struct __GLXpixelStoreModeRec
 171 {
 172    GLboolean swapEndian;
 173    GLboolean lsbFirst;
 174    GLuint rowLength;
 175    GLuint imageHeight;
 176    GLuint imageDepth;
 177    GLuint skipRows;
 178    GLuint skipPixels;
 179    GLuint skipImages;
 180    GLuint alignment;
 181 } __GLXpixelStoreMode;
 182
 183
 184 typedef struct __GLXattributeRec
 185 {
 186    GLuint mask;
 187
 188     /**
 189      * Pixel storage state.  Most of the pixel store mode state is kept
 190      * here and used by the client code to manage the packing and
 191      * unpacking of data sent to/received from the server.
 192      */
 193    __GLXpixelStoreMode storePack, storeUnpack;
 194
 195     /**
 196      * Is EXT_vertex_array / GL 1.1 DrawArrays protocol specifically
 197      * disabled?
 198      */
 199    GLboolean NoDrawArraysProtocol;
 200
 201     /**
 202      * Vertex Array storage state.  The vertex array component
 203      * state is stored here and is used to manage the packing of
 204      * DrawArrays data sent to the server.
 205      */
 206    struct array_state_vector *array_state;
 207 } __GLXattribute;
 208
 209 typedef struct __GLXattributeMachineRec
 210 {
 211    __GLXattribute *stack[__GL_CLIENT_ATTRIB_STACK_DEPTH];
 212    __GLXattribute **stackPointer;
 213 } __GLXattributeMachine;
 214
 215 struct glx_context_vtable {
 216    void (*destroy)(struct glx_context *ctx);
 217    int (*bind)(struct glx_context *context, struct glx_context *old,
 218                GLXDrawable draw, GLXDrawable read);
 219    void (*unbind)(struct glx_context *context, struct glx_context *new);
 220    void (*wait_gl)(struct glx_context *ctx);
 221    void (*wait_x)(struct glx_context *ctx);
 222    void (*use_x_font)(struct glx_context *ctx,
 223                       Font font, int first, int count, int listBase);
 224    void (*bind_tex_image)(Display * dpy,
 225                           GLXDrawable drawable,
 226                           int buffer, const int *attrib_list);
 227    void (*release_tex_image)(Display * dpy, GLXDrawable drawable, int buffer);
 228
 229 };
 230
 231 extern void
 232 glx_send_destroy_context(Display *dpy, XID xid);
 233
 234 /**
 235  * GLX state that needs to be kept on the client.  One of these records
 236  * exist for each context that has been made current by this client.
 237  */
 238 struct glx_context
 239 {
 240     /**
 241      * \name Drawing command buffer.
 242      *
 243      * Drawing commands are packed into this buffer before being sent as a
 244      * single GLX protocol request.  The buffer is sent when it overflows or
 245      * is flushed by \c __glXFlushRenderBuffer.  \c pc is the next location
 246      * in the buffer to be filled.  \c limit is described above in the buffer
 247      * slop discussion.
 248      *
 249      * Commands that require large amounts of data to be transfered will
 250      * also use this buffer to hold a header that describes the large
 251      * command.
 252      *
 253      * These must be the first 6 fields since they are static initialized
 254      * in the dummy context in glxext.c
 255      */
 256    /*@{ */
 257    GLubyte *buf;
 258    GLubyte *pc;
 259    GLubyte *limit;
 260    GLubyte *bufEnd;
 261    GLint bufSize;
 262    /*@} */
 263
 264    const struct glx_context_vtable *vtable;
 265
 266     /**
 267      * The XID of this rendering context.  When the context is created a
 268      * new XID is allocated.  This is set to None when the context is
 269      * destroyed but is still current to some thread. In this case the
 270      * context will be freed on next MakeCurrent.
 271      */
 272    XID xid;
 273
 274     /**
 275      * The XID of the \c shareList context.
 276      */
 277    XID share_xid;
 278
 279     /**
 280      * Screen number.
 281      */
 282    GLint screen;
 283    struct glx_screen *psc;
 284
 285     /**
 286      * \c GL_TRUE if the context was created with ImportContext, which
 287      * means the server-side context was created by another X client.
 288      */
 289    GLboolean imported;
 290
 291     /**
 292      * The context tag returned by MakeCurrent when this context is made
 293      * current. This tag is used to identify the context that a thread has
 294      * current so that proper server context management can be done.  It is
 295      * used for all context specific commands (i.e., \c Render, \c RenderLarge,
 296      * \c WaitX, \c WaitGL, \c UseXFont, and \c MakeCurrent (for the old
 297      * context)).
 298      */
 299    GLXContextTag currentContextTag;
 300
 301     /**
 302      * \name Rendering mode
 303      *
 304      * The rendering mode is kept on the client as well as the server.
 305      * When \c glRenderMode is called, the buffer associated with the
 306      * previous rendering mode (feedback or select) is filled.
 307      */
 308    /*@{ */
 309    GLenum renderMode;
 310    GLfloat *feedbackBuf;
 311    GLuint *selectBuf;
 312    /*@} */
 313
 314     /**
 315      * This is \c GL_TRUE if the pixel unpack modes are such that an image
 316      * can be unpacked from the clients memory by just copying.  It may
 317      * still be true that the server will have to do some work.  This
 318      * just promises that a straight copy will fetch the correct bytes.
 319      */
 320    GLboolean fastImageUnpack;
 321
 322     /**
 323      * Fill newImage with the unpacked form of \c oldImage getting it
 324      * ready for transport to the server.
 325      */
 326    void (*fillImage) (struct glx_context *, GLint, GLint, GLint, GLint, GLenum,
 327                       GLenum, const GLvoid *, GLubyte *, GLubyte *);
 328
 329     /**
 330      * Client side attribs.
 331      */
 332    __GLXattributeMachine attributes;
 333
 334     /**
 335      * Client side error code.  This is set when client side gl API
 336      * routines need to set an error because of a bad enumerant or
 337      * running out of memory, etc.
 338      */
 339    GLenum error;
 340
 341     /**
 342      * Whether this context does direct rendering.
 343      */
 344    Bool isDirect;
 345
 346     /**
 347      * \c dpy of current display for this context.  Will be \c NULL if not
 348      * current to any display, or if this is the "dummy context".
 349      */
 350    Display *currentDpy;
 351
 352     /**
 353      * The current drawable for this context.  Will be None if this
 354      * context is not current to any drawable.  currentReadable is below.
 355      */
 356    GLXDrawable currentDrawable;
 357
 358     /**
 359      * \name GL Constant Strings
 360      *
 361      * Constant strings that describe the server implementation
 362      * These pertain to GL attributes, not to be confused with
 363      * GLX versioning attributes.
 364      */
 365    /*@{ */
 366    GLubyte *vendor;
 367    GLubyte *renderer;
 368    GLubyte *version;
 369    GLubyte *extensions;
 370    /*@} */
 371
 372     /**
 373      * Maximum small render command size.  This is the smaller of 64k and
 374      * the size of the above buffer.
 375      */
 376    GLint maxSmallRenderCommandSize;
 377
 378     /**
 379      * Major opcode for the extension.  Copied here so a lookup isn't
 380      * needed.
 381      */
 382    GLint majorOpcode;
 383
 384     /**
 385      * Pointer to the config used to create this context.
 386      */
 387    struct glx_config *config;
 388
 389     /**
 390      * The current read-drawable for this context.  Will be None if this
 391      * context is not current to any drawable.
 392      *
 393      * \since Internal API version 20030606.
 394      */
 395    GLXDrawable currentReadable;
 396
 397    /**
 398     * Pointer to client-state data that is private to libGL.  This is only
 399     * used for indirect rendering contexts.
 400     *
 401     * No internal API version change was made for this change.  Client-side
 402     * drivers should NEVER use this data or even care that it exists.
 403     */
 404    void *client_state_private;
 405
 406    /**
 407     * Stored value for \c glXQueryContext attribute \c GLX_RENDER_TYPE.
 408     */
 409    int renderType;
 410
 411    /**
 412     * \name Raw server GL version
 413     *
 414     * True core GL version supported by the server.  This is the raw value
 415     * returned by the server, and it may not reflect what is actually
 416     * supported (or reported) by the client-side library.
 417     */
 418    /*@{ */
 419    int server_major;        /**< Major version number. */
 420    int server_minor;        /**< Minor version number. */
 421    /*@} */
 422
 423    /**
 424     * Thread ID we're currently current in. Zero if none.
 425     */
 426    unsigned long thread_id;
 427
 428    char gl_extension_bits[__GL_EXT_BYTES];
 429 };
 430
 431 extern Bool
 432 glx_context_init(struct glx_context *gc,
 433                  struct glx_screen *psc, struct glx_config *fbconfig);
 434
 435 #define __glXSetError(gc,code)  \
 436    if (!(gc)->error) {          \
 437       (gc)->error = code;       \
 438    }
 439
 440 extern void __glFreeAttributeState(struct glx_context *);
 441
 442 /************************************************************************/
 443
 444 /**
 445  * The size of the largest drawing command known to the implementation
 446  * that will use the GLXRender GLX command.  In this case it is
 447  * \c glPolygonStipple.
 448  */
 449 #define __GLX_MAX_SMALL_RENDER_CMD_SIZE 156
 450
 451 /**
 452  * To keep the implementation fast, the code uses a "limit" pointer
 453  * to determine when the drawing command buffer is too full to hold
 454  * another fixed size command.  This constant defines the amount of
 455  * space that must always be available in the drawing command buffer
 456  * at all times for the implementation to work.  It is important that
 457  * the number be just large enough, but not so large as to reduce the
 458  * efficacy of the buffer.  The "+32" is just to keep the code working
 459  * in case somebody counts wrong.
 460  */
 461 #define __GLX_BUFFER_LIMIT_SIZE (__GLX_MAX_SMALL_RENDER_CMD_SIZE + 32)
 462
 463 /**
 464  * This implementation uses a smaller threshold for switching
 465  * to the RenderLarge protocol than the protcol requires so that
 466  * large copies don't occur.
 467  */
 468 #define __GLX_RENDER_CMD_SIZE_LIMIT 4096
 469
 470 /**
 471  * One of these records exists per screen of the display.  It contains
 472  * a pointer to the config data for that screen (if the screen supports GL).
 473  */
 474 struct glx_screen_vtable {
 475    struct glx_context *(*create_context)(struct glx_screen *psc,
 476                                          struct glx_config *config,
 477                                          struct glx_context *shareList,
 478                                          int renderType);
 479 };
 480
 481 struct glx_screen
 482 {
 483    const struct glx_screen_vtable *vtable;
 484
 485     /**
 486      * GLX extension string reported by the X-server.
 487      */
 488    const char *serverGLXexts;
 489
 490     /**
 491      * GLX extension string to be reported to applications.  This is the
 492      * set of extensions that the application can actually use.
 493      */
 494    char *effectiveGLXexts;
 495
 496    struct glx_display *display;
 497
 498    Display *dpy;
 499    int scr;
 500
 501 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
 502     /**
 503      * Per screen direct rendering interface functions and data.
 504      */
 505    __GLXDRIscreen *driScreen;
 506 #endif
 507
 508     /**
 509      * Linked list of glx visuals and  fbconfigs for this screen.
 510      */
 511    struct glx_config *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 struct glx_screen 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 glx_display
 532 {
 533    /* The extension protocol codes */
 534    XExtCodes *codes;
 535    struct glx_display *next;
 536
 537     /**
 538      * Back pointer to the display
 539      */
 540    Display *dpy;
 541
 542     /**
 543      * The \c majorOpcode is common to all connections to the same server.
 544      * It is also copied into the context structure.
 545      */
 546    int majorOpcode;
 547
 548     /**
 549      * \name Server Version
 550      *
 551      * Major and minor version returned by the server during initialization.
 552      */
 553    /*@{ */
 554    int majorVersion, minorVersion;
 555    /*@} */
 556
 557     /**
 558      * \name Storage for the servers GLX vendor and versions strings.
 559      *
 560      * These are the same for all screens on this display. These fields will
 561      * be filled in on demand.
 562      */
 563    /*@{ */
 564    const char *serverGLXvendor;
 565    const char *serverGLXversion;
 566    /*@} */
 567
 568     /**
 569      * Configurations of visuals for all screens on this display.
 570      * Also, per screen data which now includes the server \c GLX_EXTENSION
 571      * string.
 572      */
 573    struct glx_screen **screens;
 574
 575 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
 576    __glxHashTable *drawHash;
 577
 578     /**
 579      * Per display direct rendering interface functions and data.
 580      */
 581    __GLXDRIdisplay *driswDisplay;
 582    __GLXDRIdisplay *driDisplay;
 583    __GLXDRIdisplay *dri2Display;
 584 #endif
 585 };
 586
 587 extern int
 588 glx_screen_init(struct glx_screen *psc,
 589                 int screen, struct glx_display * priv);
 590
 591 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
 592 extern __GLXDRIdrawable *
 593 dri2GetGlxDrawableFromXDrawableId(Display *dpy, XID id);
 594 #endif
 595
 596 extern GLubyte *__glXFlushRenderBuffer(struct glx_context *, GLubyte *);
 597
 598 extern void __glXSendLargeChunk(struct glx_context * gc, GLint requestNumber,
 599                                 GLint totalRequests,
 600                                 const GLvoid * data, GLint dataLen);
 601
 602 extern void __glXSendLargeCommand(struct glx_context *, const GLvoid *, GLint,
 603                                   const GLvoid *, GLint);
 604
 605 /* Initialize the GLX extension for dpy */
 606 extern struct glx_display *__glXInitialize(Display *);
 607
 608 extern void __glXPreferEGL(int state);
 609
 610 /************************************************************************/
 611
 612 extern int __glXDebug;
 613
 614 /* This is per-thread storage in an MT environment */
 615 #if defined( PTHREADS )
 616
 617 extern void __glXSetCurrentContext(struct glx_context * c);
 618
 619 # if defined( GLX_USE_TLS )
 620
 621 extern __thread void *__glX_tls_Context
 622    __attribute__ ((tls_model("initial-exec")));
 623
 624 #  define __glXGetCurrentContext() __glX_tls_Context
 625
 626 # else
 627
 628 extern struct glx_context *__glXGetCurrentContext(void);
 629
 630 # endif /* defined( GLX_USE_TLS ) */
 631
 632 #else
 633
 634 extern struct glx_context *__glXcurrentContext;
 635 #define __glXGetCurrentContext() __glXcurrentContext
 636 #define __glXSetCurrentContext(gc) __glXcurrentContext = gc
 637
 638 #endif /* defined( PTHREADS ) */
 639
 640 extern void __glXSetCurrentContextNull(void);
 641
 642
 643 /*
 644 ** Global lock for all threads in this address space using the GLX
 645 ** extension
 646 */
 647 #if defined( PTHREADS )
 648 extern pthread_mutex_t __glXmutex;
 649 #define __glXLock()    pthread_mutex_lock(&__glXmutex)
 650 #define __glXUnlock()  pthread_mutex_unlock(&__glXmutex)
 651 #else
 652 #define __glXLock()
 653 #define __glXUnlock()
 654 #endif
 655
 656 /*
 657 ** Setup for a command.  Initialize the extension for dpy if necessary.
 658 */
 659 extern CARD8 __glXSetupForCommand(Display * dpy);
 660
 661 /************************************************************************/
 662
 663 /*
 664 ** Data conversion and packing support.
 665 */
 666
 667 extern const GLuint __glXDefaultPixelStore[9];
 668
 669 /* Send an image to the server using RenderLarge. */
 670 extern void __glXSendLargeImage(struct glx_context * gc, GLint compsize, GLint dim,
 671                                 GLint width, GLint height, GLint depth,
 672                                 GLenum format, GLenum type,
 673                                 const GLvoid * src, GLubyte * pc,
 674                                 GLubyte * modes);
 675
 676 /* Return the size, in bytes, of some pixel data */
 677 extern GLint __glImageSize(GLint, GLint, GLint, GLenum, GLenum, GLenum);
 678
 679 /* Return the number of elements per group of a specified format*/
 680 extern GLint __glElementsPerGroup(GLenum format, GLenum type);
 681
 682 /* Return the number of bytes per element, based on the element type (other
 683 ** than GL_BITMAP).
 684 */
 685 extern GLint __glBytesPerElement(GLenum type);
 686
 687 /*
 688 ** Fill the transport buffer with the data from the users buffer,
 689 ** applying some of the pixel store modes (unpack modes) to the data
 690 ** first.  As a side effect of this call, the "modes" field is
 691 ** updated to contain the modes needed by the server to decode the
 692 ** sent data.
 693 */
 694 extern void __glFillImage(struct glx_context *, GLint, GLint, GLint, GLint, GLenum,
 695                           GLenum, const GLvoid *, GLubyte *, GLubyte *);
 696
 697 /* Copy map data with a stride into a packed buffer */
 698 extern void __glFillMap1f(GLint, GLint, GLint, const GLfloat *, GLubyte *);
 699 extern void __glFillMap1d(GLint, GLint, GLint, const GLdouble *, GLubyte *);
 700 extern void __glFillMap2f(GLint, GLint, GLint, GLint, GLint,
 701                           const GLfloat *, GLfloat *);
 702 extern void __glFillMap2d(GLint, GLint, GLint, GLint, GLint,
 703                           const GLdouble *, GLdouble *);
 704
 705 /*
 706 ** Empty an image out of the reply buffer into the clients memory applying
 707 ** the pack modes to pack back into the clients requested format.
 708 */
 709 extern void __glEmptyImage(struct glx_context *, GLint, GLint, GLint, GLint, GLenum,
 710                            GLenum, const GLubyte *, GLvoid *);
 711
 712
 713 /*
 714 ** Allocate and Initialize Vertex Array client state, and free.
 715 */
 716 extern void __glXInitVertexArrayState(struct glx_context *);
 717 extern void __glXFreeVertexArrayState(struct glx_context *);
 718
 719 /*
 720 ** Inform the Server of the major and minor numbers and of the client
 721 ** libraries extension string.
 722 */
 723 extern void __glXClientInfo(Display * dpy, int opcode);
 724
 725 /************************************************************************/
 726
 727 /*
 728 ** Declarations that should be in Xlib
 729 */
 730 #ifdef __GL_USE_OUR_PROTOTYPES
 731 extern void _XFlush(Display *);
 732 extern Status _XReply(Display *, xReply *, int, Bool);
 733 extern void _XRead(Display *, void *, long);
 734 extern void _XSend(Display *, const void *, long);
 735 #endif
 736
 737
 738 extern void __glXInitializeVisualConfigFromTags(struct glx_config * config,
 739                                                 int count, const INT32 * bp,
 740                                                 Bool tagged_only,
 741                                                 Bool fbconfig_style_tags);
 742
 743 extern char *__glXQueryServerString(Display * dpy, int opcode,
 744                                     CARD32 screen, CARD32 name);
 745 extern char *__glXGetString(Display * dpy, int opcode,
 746                             CARD32 screen, CARD32 name);
 747
 748 extern char *__glXstrdup(const char *str);
 749
 750
 751 extern const char __glXGLClientVersion[];
 752 extern const char __glXGLClientExtensions[];
 753
 754 /* Get the unadjusted system time */
 755 extern int __glXGetUST(int64_t * ust);
 756
 757 extern GLboolean __glXGetMscRateOML(Display * dpy, GLXDrawable drawable,
 758                                     int32_t * numerator,
 759                                     int32_t * denominator);
 760
 761 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
 762 extern GLboolean
 763 __glxGetMscRate(__GLXDRIdrawable *glxDraw,
 764                 int32_t * numerator, int32_t * denominator);
 765
 766 /* So that dri2.c:DRI2WireToEvent() can access
 767  * glx_info->codes->first_event */
 768 XExtDisplayInfo *__glXFindDisplay (Display *dpy);
 769
 770 extern void
 771 GarbageCollectDRIDrawables(struct glx_screen *psc);
 772
 773 extern __GLXDRIdrawable *
 774 GetGLXDRIDrawable(Display *dpy, GLXDrawable drawable);
 775
 776 #endif
 777
 778 extern struct glx_context dummyContext;
 779
 780 extern struct glx_screen *
 781 indirect_create_screen(int screen, struct glx_display * priv);
 782 extern struct glx_context *
 783 indirect_create_context(struct glx_screen *psc,
 784                         struct glx_config *mode,
 785                         struct glx_context *shareList, int renderType);
 786
 787 #endif /* !__GLX_client_h__ */