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      * Fill newImage with the unpacked form of \c oldImage getting it
 314      * ready for transport to the server.
 315      */
 316    void (*fillImage) (struct glx_context *, GLint, GLint, GLint, GLint, GLenum,
 317                       GLenum, const GLvoid *, GLubyte *, GLubyte *);
 318
 319     /**
 320      * Client side attribs.
 321      */
 322    __GLXattributeMachine attributes;
 323
 324     /**
 325      * Client side error code.  This is set when client side gl API
 326      * routines need to set an error because of a bad enumerant or
 327      * running out of memory, etc.
 328      */
 329    GLenum error;
 330
 331     /**
 332      * Whether this context does direct rendering.
 333      */
 334    Bool isDirect;
 335
 336 #if defined(GLX_DIRECT_RENDERING) && defined(GLX_USE_APPLEGL)
 337    void *driContext;
 338    Bool do_destroy;
 339 #endif
 340
 341     /**
 342      * \c dpy of current display for this context.  Will be \c NULL if not
 343      * current to any display, or if this is the "dummy context".
 344      */
 345    Display *currentDpy;
 346
 347     /**
 348      * The current drawable for this context.  Will be None if this
 349      * context is not current to any drawable.  currentReadable is below.
 350      */
 351    GLXDrawable currentDrawable;
 352
 353     /**
 354      * \name GL Constant Strings
 355      *
 356      * Constant strings that describe the server implementation
 357      * These pertain to GL attributes, not to be confused with
 358      * GLX versioning attributes.
 359      */
 360    /*@{ */
 361    GLubyte *vendor;
 362    GLubyte *renderer;
 363    GLubyte *version;
 364    GLubyte *extensions;
 365    /*@} */
 366
 367     /**
 368      * Maximum small render command size.  This is the smaller of 64k and
 369      * the size of the above buffer.
 370      */
 371    GLint maxSmallRenderCommandSize;
 372
 373     /**
 374      * Major opcode for the extension.  Copied here so a lookup isn't
 375      * needed.
 376      */
 377    GLint majorOpcode;
 378
 379     /**
 380      * Pointer to the config used to create this context.
 381      */
 382    struct glx_config *config;
 383
 384     /**
 385      * The current read-drawable for this context.  Will be None if this
 386      * context is not current to any drawable.
 387      *
 388      * \since Internal API version 20030606.
 389      */
 390    GLXDrawable currentReadable;
 391
 392    /**
 393     * Pointer to client-state data that is private to libGL.  This is only
 394     * used for indirect rendering contexts.
 395     *
 396     * No internal API version change was made for this change.  Client-side
 397     * drivers should NEVER use this data or even care that it exists.
 398     */
 399    void *client_state_private;
 400
 401    /**
 402     * Stored value for \c glXQueryContext attribute \c GLX_RENDER_TYPE.
 403     */
 404    int renderType;
 405
 406    /**
 407     * \name Raw server GL version
 408     *
 409     * True core GL version supported by the server.  This is the raw value
 410     * returned by the server, and it may not reflect what is actually
 411     * supported (or reported) by the client-side library.
 412     */
 413    /*@{ */
 414    int server_major;        /**< Major version number. */
 415    int server_minor;        /**< Minor version number. */
 416    /*@} */
 417
 418    /**
 419     * Number of threads we're currently current in.
 420     */
 421    unsigned long thread_refcount;
 422
 423    char gl_extension_bits[__GL_EXT_BYTES];
 424 };
 425
 426 extern Bool
 427 glx_context_init(struct glx_context *gc,
 428                  struct glx_screen *psc, struct glx_config *fbconfig);
 429
 430 #define __glXSetError(gc,code)  \
 431    if (!(gc)->error) {          \
 432       (gc)->error = code;       \
 433    }
 434
 435 extern void __glFreeAttributeState(struct glx_context *);
 436
 437 /************************************************************************/
 438
 439 /**
 440  * The size of the largest drawing command known to the implementation
 441  * that will use the GLXRender GLX command.  In this case it is
 442  * \c glPolygonStipple.
 443  */
 444 #define __GLX_MAX_SMALL_RENDER_CMD_SIZE 156
 445
 446 /**
 447  * To keep the implementation fast, the code uses a "limit" pointer
 448  * to determine when the drawing command buffer is too full to hold
 449  * another fixed size command.  This constant defines the amount of
 450  * space that must always be available in the drawing command buffer
 451  * at all times for the implementation to work.  It is important that
 452  * the number be just large enough, but not so large as to reduce the
 453  * efficacy of the buffer.  The "+32" is just to keep the code working
 454  * in case somebody counts wrong.
 455  */
 456 #define __GLX_BUFFER_LIMIT_SIZE (__GLX_MAX_SMALL_RENDER_CMD_SIZE + 32)
 457
 458 /**
 459  * This implementation uses a smaller threshold for switching
 460  * to the RenderLarge protocol than the protcol requires so that
 461  * large copies don't occur.
 462  */
 463 #define __GLX_RENDER_CMD_SIZE_LIMIT 4096
 464
 465 /**
 466  * One of these records exists per screen of the display.  It contains
 467  * a pointer to the config data for that screen (if the screen supports GL).
 468  */
 469 struct glx_screen_vtable {
 470    struct glx_context *(*create_context)(struct glx_screen *psc,
 471                                          struct glx_config *config,
 472                                          struct glx_context *shareList,
 473                                          int renderType);
 474 };
 475
 476 struct glx_screen
 477 {
 478    const struct glx_screen_vtable *vtable;
 479
 480     /**
 481      * GLX extension string reported by the X-server.
 482      */
 483    const char *serverGLXexts;
 484
 485     /**
 486      * GLX extension string to be reported to applications.  This is the
 487      * set of extensions that the application can actually use.
 488      */
 489    char *effectiveGLXexts;
 490
 491    struct glx_display *display;
 492
 493    Display *dpy;
 494    int scr;
 495
 496 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
 497     /**
 498      * Per screen direct rendering interface functions and data.
 499      */
 500    __GLXDRIscreen *driScreen;
 501 #endif
 502
 503     /**
 504      * Linked list of glx visuals and  fbconfigs for this screen.
 505      */
 506    struct glx_config *visuals, *configs;
 507
 508     /**
 509      * Per-screen dynamic GLX extension tracking.  The \c direct_support
 510      * field only contains enough bits for 64 extensions.  Should libGL
 511      * ever need to track more than 64 GLX extensions, we can safely grow
 512      * this field.  The \c struct glx_screen structure is not used outside
 513      * libGL.
 514      */
 515    /*@{ */
 516    unsigned char direct_support[8];
 517    GLboolean ext_list_first_time;
 518    /*@} */
 519
 520 };
 521
 522 /**
 523  * Per display private data.  One of these records exists for each display
 524  * that is using the OpenGL (GLX) extension.
 525  */
 526 struct glx_display
 527 {
 528    /* The extension protocol codes */
 529    XExtCodes *codes;
 530    struct glx_display *next;
 531
 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    struct glx_screen **screens;
 569
 570 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
 571    __glxHashTable *drawHash;
 572
 573     /**
 574      * Per display direct rendering interface functions and data.
 575      */
 576    __GLXDRIdisplay *driswDisplay;
 577    __GLXDRIdisplay *driDisplay;
 578    __GLXDRIdisplay *dri2Display;
 579 #endif
 580 };
 581
 582 extern int
 583 glx_screen_init(struct glx_screen *psc,
 584                 int screen, struct glx_display * priv);
 585 extern void
 586 glx_screen_cleanup(struct glx_screen *psc);
 587
 588 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
 589 extern __GLXDRIdrawable *
 590 dri2GetGlxDrawableFromXDrawableId(Display *dpy, XID id);
 591 #endif
 592
 593 extern GLubyte *__glXFlushRenderBuffer(struct glx_context *, GLubyte *);
 594
 595 extern void __glXSendLargeChunk(struct glx_context * gc, GLint requestNumber,
 596                                 GLint totalRequests,
 597                                 const GLvoid * data, GLint dataLen);
 598
 599 extern void __glXSendLargeCommand(struct glx_context *, const GLvoid *, GLint,
 600                                   const GLvoid *, GLint);
 601
 602 /* Initialize the GLX extension for dpy */
 603 extern struct glx_display *__glXInitialize(Display *);
 604
 605 extern void __glXPreferEGL(int state);
 606
 607 /************************************************************************/
 608
 609 extern int __glXDebug;
 610
 611 /* This is per-thread storage in an MT environment */
 612 #if defined( PTHREADS )
 613
 614 extern void __glXSetCurrentContext(struct glx_context * c);
 615
 616 # if defined( GLX_USE_TLS )
 617
 618 extern __thread void *__glX_tls_Context
 619    __attribute__ ((tls_model("initial-exec")));
 620
 621 #  define __glXGetCurrentContext() __glX_tls_Context
 622
 623 # else
 624
 625 extern struct glx_context *__glXGetCurrentContext(void);
 626
 627 # endif /* defined( GLX_USE_TLS ) */
 628
 629 #else
 630
 631 extern struct glx_context *__glXcurrentContext;
 632 #define __glXGetCurrentContext() __glXcurrentContext
 633 #define __glXSetCurrentContext(gc) __glXcurrentContext = gc
 634
 635 #endif /* defined( PTHREADS ) */
 636
 637 extern void __glXSetCurrentContextNull(void);
 638
 639
 640 /*
 641 ** Global lock for all threads in this address space using the GLX
 642 ** extension
 643 */
 644 #if defined( PTHREADS )
 645 extern pthread_mutex_t __glXmutex;
 646 #define __glXLock()    pthread_mutex_lock(&__glXmutex)
 647 #define __glXUnlock()  pthread_mutex_unlock(&__glXmutex)
 648 #else
 649 #define __glXLock()
 650 #define __glXUnlock()
 651 #endif
 652
 653 /*
 654 ** Setup for a command.  Initialize the extension for dpy if necessary.
 655 */
 656 extern CARD8 __glXSetupForCommand(Display * dpy);
 657
 658 /************************************************************************/
 659
 660 /*
 661 ** Data conversion and packing support.
 662 */
 663
 664 extern const GLuint __glXDefaultPixelStore[9];
 665
 666 /* Send an image to the server using RenderLarge. */
 667 extern void __glXSendLargeImage(struct glx_context * gc, GLint compsize, GLint dim,
 668                                 GLint width, GLint height, GLint depth,
 669                                 GLenum format, GLenum type,
 670                                 const GLvoid * src, GLubyte * pc,
 671                                 GLubyte * modes);
 672
 673 /* Return the size, in bytes, of some pixel data */
 674 extern GLint __glImageSize(GLint, GLint, GLint, GLenum, GLenum, GLenum);
 675
 676 /* Return the number of elements per group of a specified format*/
 677 extern GLint __glElementsPerGroup(GLenum format, GLenum type);
 678
 679 /* Return the number of bytes per element, based on the element type (other
 680 ** than GL_BITMAP).
 681 */
 682 extern GLint __glBytesPerElement(GLenum type);
 683
 684 /*
 685 ** Fill the transport buffer with the data from the users buffer,
 686 ** applying some of the pixel store modes (unpack modes) to the data
 687 ** first.  As a side effect of this call, the "modes" field is
 688 ** updated to contain the modes needed by the server to decode the
 689 ** sent data.
 690 */
 691 extern void __glFillImage(struct glx_context *, GLint, GLint, GLint, GLint, GLenum,
 692                           GLenum, const GLvoid *, GLubyte *, GLubyte *);
 693
 694 /* Copy map data with a stride into a packed buffer */
 695 extern void __glFillMap1f(GLint, GLint, GLint, const GLfloat *, GLubyte *);
 696 extern void __glFillMap1d(GLint, GLint, GLint, const GLdouble *, GLubyte *);
 697 extern void __glFillMap2f(GLint, GLint, GLint, GLint, GLint,
 698                           const GLfloat *, GLfloat *);
 699 extern void __glFillMap2d(GLint, GLint, GLint, GLint, GLint,
 700                           const GLdouble *, GLdouble *);
 701
 702 /*
 703 ** Empty an image out of the reply buffer into the clients memory applying
 704 ** the pack modes to pack back into the clients requested format.
 705 */
 706 extern void __glEmptyImage(struct glx_context *, GLint, GLint, GLint, GLint, GLenum,
 707                            GLenum, const GLubyte *, GLvoid *);
 708
 709
 710 /*
 711 ** Allocate and Initialize Vertex Array client state, and free.
 712 */
 713 extern void __glXInitVertexArrayState(struct glx_context *);
 714 extern void __glXFreeVertexArrayState(struct glx_context *);
 715
 716 /*
 717 ** Inform the Server of the major and minor numbers and of the client
 718 ** libraries extension string.
 719 */
 720 extern void __glXClientInfo(Display * dpy, int opcode);
 721
 722 /************************************************************************/
 723
 724 /*
 725 ** Declarations that should be in Xlib
 726 */
 727 #ifdef __GL_USE_OUR_PROTOTYPES
 728 extern void _XFlush(Display *);
 729 extern Status _XReply(Display *, xReply *, int, Bool);
 730 extern void _XRead(Display *, void *, long);
 731 extern void _XSend(Display *, const void *, long);
 732 #endif
 733
 734
 735 extern void __glXInitializeVisualConfigFromTags(struct glx_config * config,
 736                                                 int count, const INT32 * bp,
 737                                                 Bool tagged_only,
 738                                                 Bool fbconfig_style_tags);
 739
 740 extern char *__glXQueryServerString(Display * dpy, int opcode,
 741                                     CARD32 screen, CARD32 name);
 742 extern char *__glXGetString(Display * dpy, int opcode,
 743                             CARD32 screen, CARD32 name);
 744
 745 extern char *__glXstrdup(const char *str);
 746
 747
 748 extern const char __glXGLClientVersion[];
 749 extern const char __glXGLClientExtensions[];
 750
 751 /* Get the unadjusted system time */
 752 extern int __glXGetUST(int64_t * ust);
 753
 754 extern GLboolean __glXGetMscRateOML(Display * dpy, GLXDrawable drawable,
 755                                     int32_t * numerator,
 756                                     int32_t * denominator);
 757
 758 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
 759 extern GLboolean
 760 __glxGetMscRate(__GLXDRIdrawable *glxDraw,
 761                 int32_t * numerator, int32_t * denominator);
 762
 763 /* So that dri2.c:DRI2WireToEvent() can access
 764  * glx_info->codes->first_event */
 765 XExtDisplayInfo *__glXFindDisplay (Display *dpy);
 766
 767 extern void
 768 GarbageCollectDRIDrawables(struct glx_screen *psc);
 769
 770 extern __GLXDRIdrawable *
 771 GetGLXDRIDrawable(Display *dpy, GLXDrawable drawable);
 772 #endif
 773
 774 #ifdef GLX_USE_APPLEGL
 775 extern struct glx_screen *
 776 applegl_create_screen(int screen, struct glx_display * priv);
 777
 778 extern struct glx_context *
 779 applegl_create_context(struct glx_screen *psc,
 780                         struct glx_config *mode,
 781                         struct glx_context *shareList, int renderType);
 782
 783 extern int
 784 applegl_create_display(struct glx_display *display);
 785 #endif
 786
 787 extern struct glx_context dummyContext;
 788
 789 extern struct glx_screen *
 790 indirect_create_screen(int screen, struct glx_display * priv);
 791 extern struct glx_context *
 792 indirect_create_context(struct glx_screen *psc,
 793                         struct glx_config *mode,
 794                         struct glx_context *shareList, int renderType);
 795
 796 #endif /* !__GLX_client_h__ */