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
 154
 155 /*
 156 ** Functions to obtain driver configuration information from a direct
 157 ** rendering client application
 158 */
 159 extern const char *glXGetScreenDriver(Display * dpy, int scrNum);
 160
 161 extern const char *glXGetDriverConfig(const char *driverName);
 162
 163 #endif
 164
 165 /************************************************************************/
 166
 167 #define __GL_CLIENT_ATTRIB_STACK_DEPTH 16
 168
 169 typedef struct __GLXpixelStoreModeRec
 170 {
 171    GLboolean swapEndian;
 172    GLboolean lsbFirst;
 173    GLuint rowLength;
 174    GLuint imageHeight;
 175    GLuint imageDepth;
 176    GLuint skipRows;
 177    GLuint skipPixels;
 178    GLuint skipImages;
 179    GLuint alignment;
 180 } __GLXpixelStoreMode;
 181
 182
 183 typedef struct __GLXattributeRec
 184 {
 185    GLuint mask;
 186
 187     /**
 188      * Pixel storage state.  Most of the pixel store mode state is kept
 189      * here and used by the client code to manage the packing and
 190      * unpacking of data sent to/received from the server.
 191      */
 192    __GLXpixelStoreMode storePack, storeUnpack;
 193
 194     /**
 195      * Is EXT_vertex_array / GL 1.1 DrawArrays protocol specifically
 196      * disabled?
 197      */
 198    GLboolean NoDrawArraysProtocol;
 199
 200     /**
 201      * Vertex Array storage state.  The vertex array component
 202      * state is stored here and is used to manage the packing of
 203      * DrawArrays data sent to the server.
 204      */
 205    struct array_state_vector *array_state;
 206 } __GLXattribute;
 207
 208 typedef struct __GLXattributeMachineRec
 209 {
 210    __GLXattribute *stack[__GL_CLIENT_ATTRIB_STACK_DEPTH];
 211    __GLXattribute **stackPointer;
 212 } __GLXattributeMachine;
 213
 214 struct glx_context_vtable {
 215    void (*destroy)(struct glx_context *ctx);
 216    int (*bind)(struct glx_context *context, struct glx_context *old,
 217                GLXDrawable draw, GLXDrawable read);
 218    void (*unbind)(struct glx_context *context, struct glx_context *new);
 219    void (*wait_gl)(struct glx_context *ctx);
 220    void (*wait_x)(struct glx_context *ctx);
 221    void (*use_x_font)(struct glx_context *ctx,
 222                       Font font, int first, int count, int listBase);
 223    void (*bind_tex_image)(Display * dpy,
 224                           GLXDrawable drawable,
 225                           int buffer, const int *attrib_list);
 226    void (*release_tex_image)(Display * dpy, GLXDrawable drawable, int buffer);
 227
 228 };
 229
 230 extern void
 231 glx_send_destroy_context(Display *dpy, XID xid);
 232
 233 /**
 234  * GLX state that needs to be kept on the client.  One of these records
 235  * exist for each context that has been made current by this client.
 236  */
 237 struct glx_context
 238 {
 239     /**
 240      * \name Drawing command buffer.
 241      *
 242      * Drawing commands are packed into this buffer before being sent as a
 243      * single GLX protocol request.  The buffer is sent when it overflows or
 244      * is flushed by \c __glXFlushRenderBuffer.  \c pc is the next location
 245      * in the buffer to be filled.  \c limit is described above in the buffer
 246      * slop discussion.
 247      *
 248      * Commands that require large amounts of data to be transfered will
 249      * also use this buffer to hold a header that describes the large
 250      * command.
 251      *
 252      * These must be the first 6 fields since they are static initialized
 253      * in the dummy context in glxext.c
 254      */
 255    /*@{ */
 256    GLubyte *buf;
 257    GLubyte *pc;
 258    GLubyte *limit;
 259    GLubyte *bufEnd;
 260    GLint bufSize;
 261    /*@} */
 262
 263     /**
 264      * The XID of this rendering context.  When the context is created a
 265      * new XID is allocated.  This is set to None when the context is
 266      * destroyed but is still current to some thread. In this case the
 267      * context will be freed on next MakeCurrent.
 268      */
 269    XID xid;
 270
 271     /**
 272      * The XID of the \c shareList context.
 273      */
 274    XID share_xid;
 275
 276     /**
 277      * Screen number.
 278      */
 279    GLint screen;
 280    struct glx_screen *psc;
 281
 282     /**
 283      * \c GL_TRUE if the context was created with ImportContext, which
 284      * means the server-side context was created by another X client.
 285      */
 286    GLboolean imported;
 287
 288     /**
 289      * The context tag returned by MakeCurrent when this context is made
 290      * current. This tag is used to identify the context that a thread has
 291      * current so that proper server context management can be done.  It is
 292      * used for all context specific commands (i.e., \c Render, \c RenderLarge,
 293      * \c WaitX, \c WaitGL, \c UseXFont, and \c MakeCurrent (for the old
 294      * context)).
 295      */
 296    GLXContextTag currentContextTag;
 297
 298     /**
 299      * \name Rendering mode
 300      *
 301      * The rendering mode is kept on the client as well as the server.
 302      * When \c glRenderMode is called, the buffer associated with the
 303      * previous rendering mode (feedback or select) is filled.
 304      */
 305    /*@{ */
 306    GLenum renderMode;
 307    GLfloat *feedbackBuf;
 308    GLuint *selectBuf;
 309    /*@} */
 310
 311     /**
 312      * This is \c GL_TRUE if the pixel unpack modes are such that an image
 313      * can be unpacked from the clients memory by just copying.  It may
 314      * still be true that the server will have to do some work.  This
 315      * just promises that a straight copy will fetch the correct bytes.
 316      */
 317    GLboolean fastImageUnpack;
 318
 319     /**
 320      * Fill newImage with the unpacked form of \c oldImage getting it
 321      * ready for transport to the server.
 322      */
 323    void (*fillImage) (struct glx_context *, GLint, GLint, GLint, GLint, GLenum,
 324                       GLenum, const GLvoid *, GLubyte *, GLubyte *);
 325
 326     /**
 327      * Client side attribs.
 328      */
 329    __GLXattributeMachine attributes;
 330
 331     /**
 332      * Client side error code.  This is set when client side gl API
 333      * routines need to set an error because of a bad enumerant or
 334      * running out of memory, etc.
 335      */
 336    GLenum error;
 337
 338     /**
 339      * Whether this context does direct rendering.
 340      */
 341    Bool isDirect;
 342
 343     /**
 344      * \c dpy of current display for this context.  Will be \c NULL if not
 345      * current to any display, or if this is the "dummy context".
 346      */
 347    Display *currentDpy;
 348
 349     /**
 350      * The current drawable for this context.  Will be None if this
 351      * context is not current to any drawable.  currentReadable is below.
 352      */
 353    GLXDrawable currentDrawable;
 354
 355     /**
 356      * \name GL Constant Strings
 357      *
 358      * Constant strings that describe the server implementation
 359      * These pertain to GL attributes, not to be confused with
 360      * GLX versioning attributes.
 361      */
 362    /*@{ */
 363    GLubyte *vendor;
 364    GLubyte *renderer;
 365    GLubyte *version;
 366    GLubyte *extensions;
 367    /*@} */
 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 config used to create this context.
 383      */
 384    struct glx_config *config;
 385
 386     /**
 387      * The current read-drawable for this context.  Will be None if this
 388      * context is not current to any drawable.
 389      *
 390      * \since Internal API version 20030606.
 391      */
 392    GLXDrawable currentReadable;
 393
 394    /**
 395     * Pointer to client-state data that is private to libGL.  This is only
 396     * used for indirect rendering contexts.
 397     *
 398     * No internal API version change was made for this change.  Client-side
 399     * drivers should NEVER use this data or even care that it exists.
 400     */
 401    void *client_state_private;
 402
 403    /**
 404     * Stored value for \c glXQueryContext attribute \c GLX_RENDER_TYPE.
 405     */
 406    int renderType;
 407
 408    /**
 409     * \name Raw server GL version
 410     *
 411     * True core GL version supported by the server.  This is the raw value
 412     * returned by the server, and it may not reflect what is actually
 413     * supported (or reported) by the client-side library.
 414     */
 415    /*@{ */
 416    int server_major;        /**< Major version number. */
 417    int server_minor;        /**< Minor version number. */
 418    /*@} */
 419
 420    /**
 421     * Thread ID we're currently current in. Zero if none.
 422     */
 423    unsigned long thread_id;
 424
 425    char gl_extension_bits[__GL_EXT_BYTES];
 426
 427    const struct glx_context_vtable *vtable;
 428 };
 429
 430 extern Bool
 431 glx_context_init(struct glx_context *gc,
 432                  struct glx_screen *psc, struct glx_config *fbconfig);
 433
 434 #define __glXSetError(gc,code)  \
 435    if (!(gc)->error) {          \
 436       (gc)->error = code;       \
 437    }
 438
 439 extern void __glFreeAttributeState(struct glx_context *);
 440
 441 /************************************************************************/
 442
 443 /**
 444  * The size of the largest drawing command known to the implementation
 445  * that will use the GLXRender GLX command.  In this case it is
 446  * \c glPolygonStipple.
 447  */
 448 #define __GLX_MAX_SMALL_RENDER_CMD_SIZE 156
 449
 450 /**
 451  * To keep the implementation fast, the code uses a "limit" pointer
 452  * to determine when the drawing command buffer is too full to hold
 453  * another fixed size command.  This constant defines the amount of
 454  * space that must always be available in the drawing command buffer
 455  * at all times for the implementation to work.  It is important that
 456  * the number be just large enough, but not so large as to reduce the
 457  * efficacy of the buffer.  The "+32" is just to keep the code working
 458  * in case somebody counts wrong.
 459  */
 460 #define __GLX_BUFFER_LIMIT_SIZE (__GLX_MAX_SMALL_RENDER_CMD_SIZE + 32)
 461
 462 /**
 463  * This implementation uses a smaller threshold for switching
 464  * to the RenderLarge protocol than the protcol requires so that
 465  * large copies don't occur.
 466  */
 467 #define __GLX_RENDER_CMD_SIZE_LIMIT 4096
 468
 469 /**
 470  * One of these records exists per screen of the display.  It contains
 471  * a pointer to the config data for that screen (if the screen supports GL).
 472  */
 473 struct glx_screen_vtable {
 474    struct glx_context *(*create_context)(struct glx_screen *psc,
 475                                          struct glx_config *config,
 476                                          struct glx_context *shareList,
 477                                          int renderType);
 478 };
 479
 480 struct glx_screen
 481 {
 482    const struct glx_screen_vtable *vtable;
 483
 484     /**
 485      * GLX extension string reported by the X-server.
 486      */
 487    const char *serverGLXexts;
 488
 489     /**
 490      * GLX extension string to be reported to applications.  This is the
 491      * set of extensions that the application can actually use.
 492      */
 493    char *effectiveGLXexts;
 494
 495    struct glx_display *display;
 496
 497 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
 498     /**
 499      * Per screen direct rendering interface functions and data.
 500      */
 501    Display *dpy;
 502    int scr;
 503
 504    __GLXDRIscreen *driScreen;
 505 #endif
 506
 507     /**
 508      * Linked list of glx visuals and  fbconfigs for this screen.
 509      */
 510    struct glx_config *visuals, *configs;
 511
 512     /**
 513      * Per-screen dynamic GLX extension tracking.  The \c direct_support
 514      * field only contains enough bits for 64 extensions.  Should libGL
 515      * ever need to track more than 64 GLX extensions, we can safely grow
 516      * this field.  The \c struct glx_screen structure is not used outside
 517      * libGL.
 518      */
 519    /*@{ */
 520    unsigned char direct_support[8];
 521    GLboolean ext_list_first_time;
 522    /*@} */
 523
 524 };
 525
 526 /**
 527  * Per display private data.  One of these records exists for each display
 528  * that is using the OpenGL (GLX) extension.
 529  */
 530 struct glx_display
 531 {
 532    /* The extension protocol codes */
 533    XExtCodes *codes;
 534    struct glx_display *next;
 535
 536     /**
 537      * Back pointer to the display
 538      */
 539    Display *dpy;
 540
 541     /**
 542      * The \c majorOpcode is common to all connections to the same server.
 543      * It is also copied into the context structure.
 544      */
 545    int majorOpcode;
 546
 547     /**
 548      * \name Server Version
 549      *
 550      * Major and minor version returned by the server during initialization.
 551      */
 552    /*@{ */
 553    int majorVersion, minorVersion;
 554    /*@} */
 555
 556     /**
 557      * \name Storage for the servers GLX vendor and versions strings.
 558      *
 559      * These are the same for all screens on this display. These fields will
 560      * be filled in on demand.
 561      */
 562    /*@{ */
 563    const char *serverGLXvendor;
 564    const char *serverGLXversion;
 565    /*@} */
 566
 567     /**
 568      * Configurations of visuals for all screens on this display.
 569      * Also, per screen data which now includes the server \c GLX_EXTENSION
 570      * string.
 571      */
 572    struct glx_screen **screens;
 573
 574 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
 575    __glxHashTable *drawHash;
 576
 577     /**
 578      * Per display direct rendering interface functions and data.
 579      */
 580    __GLXDRIdisplay *driswDisplay;
 581    __GLXDRIdisplay *driDisplay;
 582    __GLXDRIdisplay *dri2Display;
 583 #endif
 584 };
 585
 586 extern int
 587 glx_screen_init(struct glx_screen *psc,
 588                 int screen, struct glx_display * priv);
 589
 590 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
 591 extern __GLXDRIdrawable *
 592 dri2GetGlxDrawableFromXDrawableId(Display *dpy, XID id);
 593 #endif
 594
 595 extern GLubyte *__glXFlushRenderBuffer(struct glx_context *, GLubyte *);
 596
 597 extern void __glXSendLargeChunk(struct glx_context * gc, GLint requestNumber,
 598                                 GLint totalRequests,
 599                                 const GLvoid * data, GLint dataLen);
 600
 601 extern void __glXSendLargeCommand(struct glx_context *, const GLvoid *, GLint,
 602                                   const GLvoid *, GLint);
 603
 604 /* Initialize the GLX extension for dpy */
 605 extern struct glx_display *__glXInitialize(Display *);
 606
 607 extern void __glXPreferEGL(int state);
 608
 609 /************************************************************************/
 610
 611 extern int __glXDebug;
 612
 613 /* This is per-thread storage in an MT environment */
 614 #if defined( PTHREADS )
 615
 616 extern void __glXSetCurrentContext(struct glx_context * c);
 617
 618 # if defined( GLX_USE_TLS )
 619
 620 extern __thread void *__glX_tls_Context
 621    __attribute__ ((tls_model("initial-exec")));
 622
 623 #  define __glXGetCurrentContext() __glX_tls_Context
 624
 625 # else
 626
 627 extern struct glx_context *__glXGetCurrentContext(void);
 628
 629 # endif /* defined( GLX_USE_TLS ) */
 630
 631 #else
 632
 633 extern struct glx_context *__glXcurrentContext;
 634 #define __glXGetCurrentContext() __glXcurrentContext
 635 #define __glXSetCurrentContext(gc) __glXcurrentContext = gc
 636
 637 #endif /* defined( PTHREADS ) */
 638
 639 extern void __glXSetCurrentContextNull(void);
 640
 641
 642 /*
 643 ** Global lock for all threads in this address space using the GLX
 644 ** extension
 645 */
 646 #if defined( PTHREADS )
 647 extern pthread_mutex_t __glXmutex;
 648 #define __glXLock()    pthread_mutex_lock(&__glXmutex)
 649 #define __glXUnlock()  pthread_mutex_unlock(&__glXmutex)
 650 #else
 651 #define __glXLock()
 652 #define __glXUnlock()
 653 #endif
 654
 655 /*
 656 ** Setup for a command.  Initialize the extension for dpy if necessary.
 657 */
 658 extern CARD8 __glXSetupForCommand(Display * dpy);
 659
 660 /************************************************************************/
 661
 662 /*
 663 ** Data conversion and packing support.
 664 */
 665
 666 extern const GLuint __glXDefaultPixelStore[9];
 667
 668 /* Send an image to the server using RenderLarge. */
 669 extern void __glXSendLargeImage(struct glx_context * gc, GLint compsize, GLint dim,
 670                                 GLint width, GLint height, GLint depth,
 671                                 GLenum format, GLenum type,
 672                                 const GLvoid * src, GLubyte * pc,
 673                                 GLubyte * modes);
 674
 675 /* Return the size, in bytes, of some pixel data */
 676 extern GLint __glImageSize(GLint, GLint, GLint, GLenum, GLenum, GLenum);
 677
 678 /* Return the number of elements per group of a specified format*/
 679 extern GLint __glElementsPerGroup(GLenum format, GLenum type);
 680
 681 /* Return the number of bytes per element, based on the element type (other
 682 ** than GL_BITMAP).
 683 */
 684 extern GLint __glBytesPerElement(GLenum type);
 685
 686 /*
 687 ** Fill the transport buffer with the data from the users buffer,
 688 ** applying some of the pixel store modes (unpack modes) to the data
 689 ** first.  As a side effect of this call, the "modes" field is
 690 ** updated to contain the modes needed by the server to decode the
 691 ** sent data.
 692 */
 693 extern void __glFillImage(struct glx_context *, GLint, GLint, GLint, GLint, GLenum,
 694                           GLenum, const GLvoid *, GLubyte *, GLubyte *);
 695
 696 /* Copy map data with a stride into a packed buffer */
 697 extern void __glFillMap1f(GLint, GLint, GLint, const GLfloat *, GLubyte *);
 698 extern void __glFillMap1d(GLint, GLint, GLint, const GLdouble *, GLubyte *);
 699 extern void __glFillMap2f(GLint, GLint, GLint, GLint, GLint,
 700                           const GLfloat *, GLfloat *);
 701 extern void __glFillMap2d(GLint, GLint, GLint, GLint, GLint,
 702                           const GLdouble *, GLdouble *);
 703
 704 /*
 705 ** Empty an image out of the reply buffer into the clients memory applying
 706 ** the pack modes to pack back into the clients requested format.
 707 */
 708 extern void __glEmptyImage(struct glx_context *, GLint, GLint, GLint, GLint, GLenum,
 709                            GLenum, const GLubyte *, GLvoid *);
 710
 711
 712 /*
 713 ** Allocate and Initialize Vertex Array client state, and free.
 714 */
 715 extern void __glXInitVertexArrayState(struct glx_context *);
 716 extern void __glXFreeVertexArrayState(struct glx_context *);
 717
 718 /*
 719 ** Inform the Server of the major and minor numbers and of the client
 720 ** libraries extension string.
 721 */
 722 extern void __glXClientInfo(Display * dpy, int opcode);
 723
 724 /************************************************************************/
 725
 726 /*
 727 ** Declarations that should be in Xlib
 728 */
 729 #ifdef __GL_USE_OUR_PROTOTYPES
 730 extern void _XFlush(Display *);
 731 extern Status _XReply(Display *, xReply *, int, Bool);
 732 extern void _XRead(Display *, void *, long);
 733 extern void _XSend(Display *, const void *, long);
 734 #endif
 735
 736
 737 extern void __glXInitializeVisualConfigFromTags(struct glx_config * config,
 738                                                 int count, const INT32 * bp,
 739                                                 Bool tagged_only,
 740                                                 Bool fbconfig_style_tags);
 741
 742 extern char *__glXQueryServerString(Display * dpy, int opcode,
 743                                     CARD32 screen, CARD32 name);
 744 extern char *__glXGetString(Display * dpy, int opcode,
 745                             CARD32 screen, CARD32 name);
 746
 747 extern char *__glXstrdup(const char *str);
 748
 749
 750 extern const char __glXGLClientVersion[];
 751 extern const char __glXGLClientExtensions[];
 752
 753 /* Get the unadjusted system time */
 754 extern int __glXGetUST(int64_t * ust);
 755
 756 extern GLboolean __glXGetMscRateOML(Display * dpy, GLXDrawable drawable,
 757                                     int32_t * numerator,
 758                                     int32_t * denominator);
 759
 760 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
 761 extern GLboolean
 762 __glxGetMscRate(__GLXDRIdrawable *glxDraw,
 763                 int32_t * numerator, int32_t * denominator);
 764
 765 /* So that dri2.c:DRI2WireToEvent() can access
 766  * glx_info->codes->first_event */
 767 XExtDisplayInfo *__glXFindDisplay (Display *dpy);
 768
 769 extern void
 770 GarbageCollectDRIDrawables(struct glx_screen *psc);
 771
 772 extern __GLXDRIdrawable *
 773 GetGLXDRIDrawable(Display *dpy, GLXDrawable drawable);
 774
 775 #endif
 776
 777 extern struct glx_context dummyContext;
 778
 779 extern struct glx_screen *
 780 indirect_create_screen(int screen, struct glx_display * priv);
 781 extern struct glx_context *
 782 indirect_create_context(struct glx_screen *psc,
 783                         struct glx_config *mode,
 784                         struct glx_context *shareList, int renderType);
 785
 786 #endif /* !__GLX_client_h__ */