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 struct __GLXDRIdisplayRec
  93 {
  94     /**
  95      * Method to destroy the private DRI display data.
  96      */
  97    void (*destroyDisplay) (__GLXDRIdisplay * display);
  98
  99    struct glx_screen *(*createScreen)(int screen, struct glx_display * priv);
 100 };
 101
 102 struct __GLXDRIscreenRec {
 103
 104    void (*destroyScreen)(struct glx_screen *psc);
 105
 106    struct glx_context *(*createContext)(struct glx_screen *psc,
 107                                         struct glx_config *config,
 108                                         struct glx_context *shareList,
 109                                         int renderType);
 110
 111    __GLXDRIdrawable *(*createDrawable)(struct glx_screen *psc,
 112                                        XID drawable,
 113                                        GLXDrawable glxDrawable,
 114                                        struct glx_config *config);
 115
 116    int64_t (*swapBuffers)(__GLXDRIdrawable *pdraw, int64_t target_msc,
 117                           int64_t divisor, int64_t remainder);
 118    void (*copySubBuffer)(__GLXDRIdrawable *pdraw,
 119                          int x, int y, int width, int height);
 120    int (*getDrawableMSC)(struct glx_screen *psc, __GLXDRIdrawable *pdraw,
 121                          int64_t *ust, int64_t *msc, int64_t *sbc);
 122    int (*waitForMSC)(__GLXDRIdrawable *pdraw, int64_t target_msc,
 123                      int64_t divisor, int64_t remainder, int64_t *ust,
 124                      int64_t *msc, int64_t *sbc);
 125    int (*waitForSBC)(__GLXDRIdrawable *pdraw, int64_t target_sbc, int64_t *ust,
 126                      int64_t *msc, int64_t *sbc);
 127    int (*setSwapInterval)(__GLXDRIdrawable *pdraw, int interval);
 128    int (*getSwapInterval)(__GLXDRIdrawable *pdraw);
 129 };
 130
 131 struct __GLXDRIdrawableRec
 132 {
 133    void (*destroyDrawable) (__GLXDRIdrawable * drawable);
 134
 135    XID xDrawable;
 136    XID drawable;
 137    struct glx_screen *psc;
 138    GLenum textureTarget;
 139    GLenum textureFormat;        /* EXT_texture_from_pixmap support */
 140    unsigned long eventMask;
 141 };
 142
 143 /*
 144 ** Function to create and DRI display data and initialize the display
 145 ** dependent methods.
 146 */
 147 extern __GLXDRIdisplay *driswCreateDisplay(Display * dpy);
 148 extern __GLXDRIdisplay *driCreateDisplay(Display * dpy);
 149 extern __GLXDRIdisplay *dri2CreateDisplay(Display * dpy);
 150 extern void dri2InvalidateBuffers(Display *dpy, XID drawable);
 151 extern unsigned dri2GetSwapEventType(Display *dpy, XID drawable);
 152
 153
 154 /*
 155 ** Functions to obtain driver configuration information from a direct
 156 ** rendering client application
 157 */
 158 extern const char *glXGetScreenDriver(Display * dpy, int scrNum);
 159
 160 extern const char *glXGetDriverConfig(const char *driverName);
 161
 162 #endif
 163
 164 /************************************************************************/
 165
 166 #define __GL_CLIENT_ATTRIB_STACK_DEPTH 16
 167
 168 typedef struct __GLXpixelStoreModeRec
 169 {
 170    GLboolean swapEndian;
 171    GLboolean lsbFirst;
 172    GLuint rowLength;
 173    GLuint imageHeight;
 174    GLuint imageDepth;
 175    GLuint skipRows;
 176    GLuint skipPixels;
 177    GLuint skipImages;
 178    GLuint alignment;
 179 } __GLXpixelStoreMode;
 180
 181
 182 typedef struct __GLXattributeRec
 183 {
 184    GLuint mask;
 185
 186     /**
 187      * Pixel storage state.  Most of the pixel store mode state is kept
 188      * here and used by the client code to manage the packing and
 189      * unpacking of data sent to/received from the server.
 190      */
 191    __GLXpixelStoreMode storePack, storeUnpack;
 192
 193     /**
 194      * Is EXT_vertex_array / GL 1.1 DrawArrays protocol specifically
 195      * disabled?
 196      */
 197    GLboolean NoDrawArraysProtocol;
 198
 199     /**
 200      * Vertex Array storage state.  The vertex array component
 201      * state is stored here and is used to manage the packing of
 202      * DrawArrays data sent to the server.
 203      */
 204    struct array_state_vector *array_state;
 205 } __GLXattribute;
 206
 207 typedef struct __GLXattributeMachineRec
 208 {
 209    __GLXattribute *stack[__GL_CLIENT_ATTRIB_STACK_DEPTH];
 210    __GLXattribute **stackPointer;
 211 } __GLXattributeMachine;
 212
 213 struct glx_context_vtable {
 214    void (*destroy)(struct glx_context *ctx);
 215    int (*bind)(struct glx_context *context, struct glx_context *old,
 216                GLXDrawable draw, GLXDrawable read);
 217    void (*unbind)(struct glx_context *context, struct glx_context *new);
 218    void (*wait_gl)(struct glx_context *ctx);
 219    void (*wait_x)(struct glx_context *ctx);
 220    void (*use_x_font)(struct glx_context *ctx,
 221                       Font font, int first, int count, int listBase);
 222    void (*bind_tex_image)(Display * dpy,
 223                           GLXDrawable drawable,
 224                           int buffer, const int *attrib_list);
 225    void (*release_tex_image)(Display * dpy, GLXDrawable drawable, int buffer);
 226
 227 };
 228
 229 extern void
 230 glx_send_destroy_context(Display *dpy, XID xid);
 231
 232 /**
 233  * GLX state that needs to be kept on the client.  One of these records
 234  * exist for each context that has been made current by this client.
 235  */
 236 struct glx_context
 237 {
 238     /**
 239      * \name Drawing command buffer.
 240      *
 241      * Drawing commands are packed into this buffer before being sent as a
 242      * single GLX protocol request.  The buffer is sent when it overflows or
 243      * is flushed by \c __glXFlushRenderBuffer.  \c pc is the next location
 244      * in the buffer to be filled.  \c limit is described above in the buffer
 245      * slop discussion.
 246      *
 247      * Commands that require large amounts of data to be transfered will
 248      * also use this buffer to hold a header that describes the large
 249      * command.
 250      *
 251      * These must be the first 6 fields since they are static initialized
 252      * in the dummy context in glxext.c
 253      */
 254    /*@{ */
 255    GLubyte *buf;
 256    GLubyte *pc;
 257    GLubyte *limit;
 258    GLubyte *bufEnd;
 259    GLint bufSize;
 260    /*@} */
 261
 262    const struct glx_context_vtable *vtable;
 263
 264     /**
 265      * The XID of this rendering context.  When the context is created a
 266      * new XID is allocated.  This is set to None when the context is
 267      * destroyed but is still current to some thread. In this case the
 268      * context will be freed on next MakeCurrent.
 269      */
 270    XID xid;
 271
 272     /**
 273      * The XID of the \c shareList context.
 274      */
 275    XID share_xid;
 276
 277     /**
 278      * Screen number.
 279      */
 280    GLint screen;
 281    struct glx_screen *psc;
 282
 283     /**
 284      * \c GL_TRUE if the context was created with ImportContext, which
 285      * means the server-side context was created by another X client.
 286      */
 287    GLboolean imported;
 288
 289     /**
 290      * The context tag returned by MakeCurrent when this context is made
 291      * current. This tag is used to identify the context that a thread has
 292      * current so that proper server context management can be done.  It is
 293      * used for all context specific commands (i.e., \c Render, \c RenderLarge,
 294      * \c WaitX, \c WaitGL, \c UseXFont, and \c MakeCurrent (for the old
 295      * context)).
 296      */
 297    GLXContextTag currentContextTag;
 298
 299     /**
 300      * \name Rendering mode
 301      *
 302      * The rendering mode is kept on the client as well as the server.
 303      * When \c glRenderMode is called, the buffer associated with the
 304      * previous rendering mode (feedback or select) is filled.
 305      */
 306    /*@{ */
 307    GLenum renderMode;
 308    GLfloat *feedbackBuf;
 309    GLuint *selectBuf;
 310    /*@} */
 311
 312     /**
 313      * This is \c GL_TRUE if the pixel unpack modes are such that an image
 314      * can be unpacked from the clients memory by just copying.  It may
 315      * still be true that the server will have to do some work.  This
 316      * just promises that a straight copy will fetch the correct bytes.
 317      */
 318    GLboolean fastImageUnpack;
 319
 320     /**
 321      * Fill newImage with the unpacked form of \c oldImage getting it
 322      * ready for transport to the server.
 323      */
 324    void (*fillImage) (struct glx_context *, GLint, GLint, GLint, GLint, GLenum,
 325                       GLenum, const GLvoid *, GLubyte *, GLubyte *);
 326
 327     /**
 328      * Client side attribs.
 329      */
 330    __GLXattributeMachine attributes;
 331
 332     /**
 333      * Client side error code.  This is set when client side gl API
 334      * routines need to set an error because of a bad enumerant or
 335      * running out of memory, etc.
 336      */
 337    GLenum error;
 338
 339     /**
 340      * Whether this context does direct rendering.
 341      */
 342    Bool isDirect;
 343
 344     /**
 345      * \c dpy of current display for this context.  Will be \c NULL if not
 346      * current to any display, or if this is the "dummy context".
 347      */
 348    Display *currentDpy;
 349
 350     /**
 351      * The current drawable for this context.  Will be None if this
 352      * context is not current to any drawable.  currentReadable is below.
 353      */
 354    GLXDrawable currentDrawable;
 355
 356     /**
 357      * \name GL Constant Strings
 358      *
 359      * Constant strings that describe the server implementation
 360      * These pertain to GL attributes, not to be confused with
 361      * GLX versioning attributes.
 362      */
 363    /*@{ */
 364    GLubyte *vendor;
 365    GLubyte *renderer;
 366    GLubyte *version;
 367    GLubyte *extensions;
 368    /*@} */
 369
 370     /**
 371      * Maximum small render command size.  This is the smaller of 64k and
 372      * the size of the above buffer.
 373      */
 374    GLint maxSmallRenderCommandSize;
 375
 376     /**
 377      * Major opcode for the extension.  Copied here so a lookup isn't
 378      * needed.
 379      */
 380    GLint majorOpcode;
 381
 382     /**
 383      * Pointer to the config used to create this context.
 384      */
 385    struct glx_config *config;
 386
 387     /**
 388      * The current read-drawable for this context.  Will be None if this
 389      * context is not current to any drawable.
 390      *
 391      * \since Internal API version 20030606.
 392      */
 393    GLXDrawable currentReadable;
 394
 395    /**
 396     * Pointer to client-state data that is private to libGL.  This is only
 397     * used for indirect rendering contexts.
 398     *
 399     * No internal API version change was made for this change.  Client-side
 400     * drivers should NEVER use this data or even care that it exists.
 401     */
 402    void *client_state_private;
 403
 404    /**
 405     * Stored value for \c glXQueryContext attribute \c GLX_RENDER_TYPE.
 406     */
 407    int renderType;
 408
 409    /**
 410     * \name Raw server GL version
 411     *
 412     * True core GL version supported by the server.  This is the raw value
 413     * returned by the server, and it may not reflect what is actually
 414     * supported (or reported) by the client-side library.
 415     */
 416    /*@{ */
 417    int server_major;        /**< Major version number. */
 418    int server_minor;        /**< Minor version number. */
 419    /*@} */
 420
 421    /**
 422     * Thread ID we're currently current in. Zero if none.
 423     */
 424    unsigned long thread_id;
 425
 426    char gl_extension_bits[__GL_EXT_BYTES];
 427 };
 428
 429 extern Bool
 430 glx_context_init(struct glx_context *gc,
 431                  struct glx_screen *psc, struct glx_config *fbconfig);
 432
 433 #define __glXSetError(gc,code)  \
 434    if (!(gc)->error) {          \
 435       (gc)->error = code;       \
 436    }
 437
 438 extern void __glFreeAttributeState(struct glx_context *);
 439
 440 /************************************************************************/
 441
 442 /**
 443  * The size of the largest drawing command known to the implementation
 444  * that will use the GLXRender GLX command.  In this case it is
 445  * \c glPolygonStipple.
 446  */
 447 #define __GLX_MAX_SMALL_RENDER_CMD_SIZE 156
 448
 449 /**
 450  * To keep the implementation fast, the code uses a "limit" pointer
 451  * to determine when the drawing command buffer is too full to hold
 452  * another fixed size command.  This constant defines the amount of
 453  * space that must always be available in the drawing command buffer
 454  * at all times for the implementation to work.  It is important that
 455  * the number be just large enough, but not so large as to reduce the
 456  * efficacy of the buffer.  The "+32" is just to keep the code working
 457  * in case somebody counts wrong.
 458  */
 459 #define __GLX_BUFFER_LIMIT_SIZE (__GLX_MAX_SMALL_RENDER_CMD_SIZE + 32)
 460
 461 /**
 462  * This implementation uses a smaller threshold for switching
 463  * to the RenderLarge protocol than the protcol requires so that
 464  * large copies don't occur.
 465  */
 466 #define __GLX_RENDER_CMD_SIZE_LIMIT 4096
 467
 468 /**
 469  * One of these records exists per screen of the display.  It contains
 470  * a pointer to the config data for that screen (if the screen supports GL).
 471  */
 472 struct glx_screen_vtable {
 473    struct glx_context *(*create_context)(struct glx_screen *psc,
 474                                          struct glx_config *config,
 475                                          struct glx_context *shareList,
 476                                          int renderType);
 477 };
 478
 479 struct glx_screen
 480 {
 481    const struct glx_screen_vtable *vtable;
 482
 483     /**
 484      * GLX extension string reported by the X-server.
 485      */
 486    const char *serverGLXexts;
 487
 488     /**
 489      * GLX extension string to be reported to applications.  This is the
 490      * set of extensions that the application can actually use.
 491      */
 492    char *effectiveGLXexts;
 493
 494    struct glx_display *display;
 495
 496    Display *dpy;
 497    int scr;
 498
 499 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
 500     /**
 501      * Per screen direct rendering interface functions and data.
 502      */
 503    __GLXDRIscreen *driScreen;
 504 #endif
 505
 506     /**
 507      * Linked list of glx visuals and  fbconfigs for this screen.
 508      */
 509    struct glx_config *visuals, *configs;
 510
 511     /**
 512      * Per-screen dynamic GLX extension tracking.  The \c direct_support
 513      * field only contains enough bits for 64 extensions.  Should libGL
 514      * ever need to track more than 64 GLX extensions, we can safely grow
 515      * this field.  The \c struct glx_screen structure is not used outside
 516      * libGL.
 517      */
 518    /*@{ */
 519    unsigned char direct_support[8];
 520    GLboolean ext_list_first_time;
 521    /*@} */
 522
 523 };
 524
 525 /**
 526  * Per display private data.  One of these records exists for each display
 527  * that is using the OpenGL (GLX) extension.
 528  */
 529 struct glx_display
 530 {
 531    /* The extension protocol codes */
 532    XExtCodes *codes;
 533    struct glx_display *next;
 534
 535     /**
 536      * Back pointer to the display
 537      */
 538    Display *dpy;
 539
 540     /**
 541      * The \c majorOpcode is common to all connections to the same server.
 542      * It is also copied into the context structure.
 543      */
 544    int majorOpcode;
 545
 546     /**
 547      * \name Server Version
 548      *
 549      * Major and minor version returned by the server during initialization.
 550      */
 551    /*@{ */
 552    int majorVersion, minorVersion;
 553    /*@} */
 554
 555     /**
 556      * \name Storage for the servers GLX vendor and versions strings.
 557      *
 558      * These are the same for all screens on this display. These fields will
 559      * be filled in on demand.
 560      */
 561    /*@{ */
 562    const char *serverGLXvendor;
 563    const char *serverGLXversion;
 564    /*@} */
 565
 566     /**
 567      * Configurations of visuals for all screens on this display.
 568      * Also, per screen data which now includes the server \c GLX_EXTENSION
 569      * string.
 570      */
 571    struct glx_screen **screens;
 572
 573 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
 574    __glxHashTable *drawHash;
 575
 576     /**
 577      * Per display direct rendering interface functions and data.
 578      */
 579    __GLXDRIdisplay *driswDisplay;
 580    __GLXDRIdisplay *driDisplay;
 581    __GLXDRIdisplay *dri2Display;
 582 #endif
 583 };
 584
 585 extern int
 586 glx_screen_init(struct glx_screen *psc,
 587                 int screen, struct glx_display * priv);
 588
 589 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
 590 extern __GLXDRIdrawable *
 591 dri2GetGlxDrawableFromXDrawableId(Display *dpy, XID id);
 592 #endif
 593
 594 extern GLubyte *__glXFlushRenderBuffer(struct glx_context *, GLubyte *);
 595
 596 extern void __glXSendLargeChunk(struct glx_context * gc, GLint requestNumber,
 597                                 GLint totalRequests,
 598                                 const GLvoid * data, GLint dataLen);
 599
 600 extern void __glXSendLargeCommand(struct glx_context *, const GLvoid *, GLint,
 601                                   const GLvoid *, GLint);
 602
 603 /* Initialize the GLX extension for dpy */
 604 extern struct glx_display *__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( PTHREADS )
 614
 615 extern void __glXSetCurrentContext(struct glx_context * 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 struct glx_context *__glXGetCurrentContext(void);
 627
 628 # endif /* defined( GLX_USE_TLS ) */
 629
 630 #else
 631
 632 extern struct glx_context *__glXcurrentContext;
 633 #define __glXGetCurrentContext() __glXcurrentContext
 634 #define __glXSetCurrentContext(gc) __glXcurrentContext = gc
 635
 636 #endif /* defined( PTHREADS ) */
 637
 638 extern void __glXSetCurrentContextNull(void);
 639
 640
 641 /*
 642 ** Global lock for all threads in this address space using the GLX
 643 ** extension
 644 */
 645 #if defined( PTHREADS )
 646 extern pthread_mutex_t __glXmutex;
 647 #define __glXLock()    pthread_mutex_lock(&__glXmutex)
 648 #define __glXUnlock()  pthread_mutex_unlock(&__glXmutex)
 649 #else
 650 #define __glXLock()
 651 #define __glXUnlock()
 652 #endif
 653
 654 /*
 655 ** Setup for a command.  Initialize the extension for dpy if necessary.
 656 */
 657 extern CARD8 __glXSetupForCommand(Display * dpy);
 658
 659 /************************************************************************/
 660
 661 /*
 662 ** Data conversion and packing support.
 663 */
 664
 665 extern const GLuint __glXDefaultPixelStore[9];
 666
 667 /* Send an image to the server using RenderLarge. */
 668 extern void __glXSendLargeImage(struct glx_context * gc, GLint compsize, GLint dim,
 669                                 GLint width, GLint height, GLint depth,
 670                                 GLenum format, GLenum type,
 671                                 const GLvoid * src, GLubyte * pc,
 672                                 GLubyte * modes);
 673
 674 /* Return the size, in bytes, of some pixel data */
 675 extern GLint __glImageSize(GLint, GLint, GLint, GLenum, GLenum, GLenum);
 676
 677 /* Return the number of elements per group of a specified format*/
 678 extern GLint __glElementsPerGroup(GLenum format, GLenum type);
 679
 680 /* Return the number of bytes per element, based on the element type (other
 681 ** than GL_BITMAP).
 682 */
 683 extern GLint __glBytesPerElement(GLenum type);
 684
 685 /*
 686 ** Fill the transport buffer with the data from the users buffer,
 687 ** applying some of the pixel store modes (unpack modes) to the data
 688 ** first.  As a side effect of this call, the "modes" field is
 689 ** updated to contain the modes needed by the server to decode the
 690 ** sent data.
 691 */
 692 extern void __glFillImage(struct glx_context *, GLint, GLint, GLint, GLint, GLenum,
 693                           GLenum, const GLvoid *, GLubyte *, GLubyte *);
 694
 695 /* Copy map data with a stride into a packed buffer */
 696 extern void __glFillMap1f(GLint, GLint, GLint, const GLfloat *, GLubyte *);
 697 extern void __glFillMap1d(GLint, GLint, GLint, const GLdouble *, GLubyte *);
 698 extern void __glFillMap2f(GLint, GLint, GLint, GLint, GLint,
 699                           const GLfloat *, GLfloat *);
 700 extern void __glFillMap2d(GLint, GLint, GLint, GLint, GLint,
 701                           const GLdouble *, GLdouble *);
 702
 703 /*
 704 ** Empty an image out of the reply buffer into the clients memory applying
 705 ** the pack modes to pack back into the clients requested format.
 706 */
 707 extern void __glEmptyImage(struct glx_context *, GLint, GLint, GLint, GLint, GLenum,
 708                            GLenum, const GLubyte *, GLvoid *);
 709
 710
 711 /*
 712 ** Allocate and Initialize Vertex Array client state, and free.
 713 */
 714 extern void __glXInitVertexArrayState(struct glx_context *);
 715 extern void __glXFreeVertexArrayState(struct glx_context *);
 716
 717 /*
 718 ** Inform the Server of the major and minor numbers and of the client
 719 ** libraries extension string.
 720 */
 721 extern void __glXClientInfo(Display * dpy, int opcode);
 722
 723 /************************************************************************/
 724
 725 /*
 726 ** Declarations that should be in Xlib
 727 */
 728 #ifdef __GL_USE_OUR_PROTOTYPES
 729 extern void _XFlush(Display *);
 730 extern Status _XReply(Display *, xReply *, int, Bool);
 731 extern void _XRead(Display *, void *, long);
 732 extern void _XSend(Display *, const void *, long);
 733 #endif
 734
 735
 736 extern void __glXInitializeVisualConfigFromTags(struct glx_config * config,
 737                                                 int count, const INT32 * bp,
 738                                                 Bool tagged_only,
 739                                                 Bool fbconfig_style_tags);
 740
 741 extern char *__glXQueryServerString(Display * dpy, int opcode,
 742                                     CARD32 screen, CARD32 name);
 743 extern char *__glXGetString(Display * dpy, int opcode,
 744                             CARD32 screen, 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,
 757                                     int32_t * denominator);
 758
 759 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
 760 extern GLboolean
 761 __glxGetMscRate(__GLXDRIdrawable *glxDraw,
 762                 int32_t * numerator, int32_t * denominator);
 763
 764 /* So that dri2.c:DRI2WireToEvent() can access
 765  * glx_info->codes->first_event */
 766 XExtDisplayInfo *__glXFindDisplay (Display *dpy);
 767
 768 extern void
 769 GarbageCollectDRIDrawables(struct glx_screen *psc);
 770
 771 extern __GLXDRIdrawable *
 772 GetGLXDRIDrawable(Display *dpy, GLXDrawable drawable);
 773
 774 #endif
 775
 776 extern struct glx_context dummyContext;
 777
 778 extern struct glx_screen *
 779 indirect_create_screen(int screen, struct glx_display * priv);
 780 extern struct glx_context *
 781 indirect_create_context(struct glx_screen *psc,
 782                         struct glx_config *mode,
 783                         struct glx_context *shareList, int renderType);
 784
 785 #endif /* !__GLX_client_h__ */