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 #endif
 339
 340     /**
 341      * \c dpy of current display for this context.  Will be \c NULL if not
 342      * current to any display, or if this is the "dummy context".
 343      */
 344    Display *currentDpy;
 345
 346     /**
 347      * The current drawable for this context.  Will be None if this
 348      * context is not current to any drawable.  currentReadable is below.
 349      */
 350    GLXDrawable currentDrawable;
 351
 352     /**
 353      * \name GL Constant Strings
 354      *
 355      * Constant strings that describe the server implementation
 356      * These pertain to GL attributes, not to be confused with
 357      * GLX versioning attributes.
 358      */
 359    /*@{ */
 360    GLubyte *vendor;
 361    GLubyte *renderer;
 362    GLubyte *version;
 363    GLubyte *extensions;
 364    /*@} */
 365
 366     /**
 367      * Maximum small render command size.  This is the smaller of 64k and
 368      * the size of the above buffer.
 369      */
 370    GLint maxSmallRenderCommandSize;
 371
 372     /**
 373      * Major opcode for the extension.  Copied here so a lookup isn't
 374      * needed.
 375      */
 376    GLint majorOpcode;
 377
 378     /**
 379      * Pointer to the config used to create this context.
 380      */
 381    struct glx_config *config;
 382
 383     /**
 384      * The current read-drawable for this context.  Will be None if this
 385      * context is not current to any drawable.
 386      *
 387      * \since Internal API version 20030606.
 388      */
 389    GLXDrawable currentReadable;
 390
 391    /**
 392     * Pointer to client-state data that is private to libGL.  This is only
 393     * used for indirect rendering contexts.
 394     *
 395     * No internal API version change was made for this change.  Client-side
 396     * drivers should NEVER use this data or even care that it exists.
 397     */
 398    void *client_state_private;
 399
 400    /**
 401     * Stored value for \c glXQueryContext attribute \c GLX_RENDER_TYPE.
 402     */
 403    int renderType;
 404
 405    /**
 406     * \name Raw server GL version
 407     *
 408     * True core GL version supported by the server.  This is the raw value
 409     * returned by the server, and it may not reflect what is actually
 410     * supported (or reported) by the client-side library.
 411     */
 412    /*@{ */
 413    int server_major;        /**< Major version number. */
 414    int server_minor;        /**< Minor version number. */
 415    /*@} */
 416
 417    /**
 418     * Number of threads we're currently current in.
 419     */
 420    unsigned long thread_refcount;
 421
 422    char gl_extension_bits[__GL_EXT_BYTES];
 423 };
 424
 425 extern Bool
 426 glx_context_init(struct glx_context *gc,
 427                  struct glx_screen *psc, struct glx_config *fbconfig);
 428
 429 #define __glXSetError(gc,code)  \
 430    if (!(gc)->error) {          \
 431       (gc)->error = code;       \
 432    }
 433
 434 extern void __glFreeAttributeState(struct glx_context *);
 435
 436 /************************************************************************/
 437
 438 /**
 439  * The size of the largest drawing command known to the implementation
 440  * that will use the GLXRender GLX command.  In this case it is
 441  * \c glPolygonStipple.
 442  */
 443 #define __GLX_MAX_SMALL_RENDER_CMD_SIZE 156
 444
 445 /**
 446  * To keep the implementation fast, the code uses a "limit" pointer
 447  * to determine when the drawing command buffer is too full to hold
 448  * another fixed size command.  This constant defines the amount of
 449  * space that must always be available in the drawing command buffer
 450  * at all times for the implementation to work.  It is important that
 451  * the number be just large enough, but not so large as to reduce the
 452  * efficacy of the buffer.  The "+32" is just to keep the code working
 453  * in case somebody counts wrong.
 454  */
 455 #define __GLX_BUFFER_LIMIT_SIZE (__GLX_MAX_SMALL_RENDER_CMD_SIZE + 32)
 456
 457 /**
 458  * This implementation uses a smaller threshold for switching
 459  * to the RenderLarge protocol than the protcol requires so that
 460  * large copies don't occur.
 461  */
 462 #define __GLX_RENDER_CMD_SIZE_LIMIT 4096
 463
 464 /**
 465  * One of these records exists per screen of the display.  It contains
 466  * a pointer to the config data for that screen (if the screen supports GL).
 467  */
 468 struct glx_screen_vtable {
 469    struct glx_context *(*create_context)(struct glx_screen *psc,
 470                                          struct glx_config *config,
 471                                          struct glx_context *shareList,
 472                                          int renderType);
 473 };
 474
 475 struct glx_screen
 476 {
 477    const struct glx_screen_vtable *vtable;
 478
 479     /**
 480      * GLX extension string reported by the X-server.
 481      */
 482    const char *serverGLXexts;
 483
 484     /**
 485      * GLX extension string to be reported to applications.  This is the
 486      * set of extensions that the application can actually use.
 487      */
 488    char *effectiveGLXexts;
 489
 490    struct glx_display *display;
 491
 492    Display *dpy;
 493    int scr;
 494
 495 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
 496     /**
 497      * Per screen direct rendering interface functions and data.
 498      */
 499    __GLXDRIscreen *driScreen;
 500 #endif
 501
 502     /**
 503      * Linked list of glx visuals and  fbconfigs for this screen.
 504      */
 505    struct glx_config *visuals, *configs;
 506
 507     /**
 508      * Per-screen dynamic GLX extension tracking.  The \c direct_support
 509      * field only contains enough bits for 64 extensions.  Should libGL
 510      * ever need to track more than 64 GLX extensions, we can safely grow
 511      * this field.  The \c struct glx_screen structure is not used outside
 512      * libGL.
 513      */
 514    /*@{ */
 515    unsigned char direct_support[8];
 516    GLboolean ext_list_first_time;
 517    /*@} */
 518
 519 };
 520
 521 /**
 522  * Per display private data.  One of these records exists for each display
 523  * that is using the OpenGL (GLX) extension.
 524  */
 525 struct glx_display
 526 {
 527    /* The extension protocol codes */
 528    XExtCodes *codes;
 529    struct glx_display *next;
 530
 531     /**
 532      * Back pointer to the display
 533      */
 534    Display *dpy;
 535
 536     /**
 537      * The \c majorOpcode is common to all connections to the same server.
 538      * It is also copied into the context structure.
 539      */
 540    int majorOpcode;
 541
 542     /**
 543      * \name Server Version
 544      *
 545      * Major and minor version returned by the server during initialization.
 546      */
 547    /*@{ */
 548    int majorVersion, minorVersion;
 549    /*@} */
 550
 551     /**
 552      * \name Storage for the servers GLX vendor and versions strings.
 553      *
 554      * These are the same for all screens on this display. These fields will
 555      * be filled in on demand.
 556      */
 557    /*@{ */
 558    const char *serverGLXvendor;
 559    const char *serverGLXversion;
 560    /*@} */
 561
 562     /**
 563      * Configurations of visuals for all screens on this display.
 564      * Also, per screen data which now includes the server \c GLX_EXTENSION
 565      * string.
 566      */
 567    struct glx_screen **screens;
 568
 569 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
 570    __glxHashTable *drawHash;
 571
 572     /**
 573      * Per display direct rendering interface functions and data.
 574      */
 575    __GLXDRIdisplay *driswDisplay;
 576    __GLXDRIdisplay *driDisplay;
 577    __GLXDRIdisplay *dri2Display;
 578 #endif
 579 };
 580
 581 extern int
 582 glx_screen_init(struct glx_screen *psc,
 583                 int screen, struct glx_display * priv);
 584 extern void
 585 glx_screen_cleanup(struct glx_screen *psc);
 586
 587 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
 588 extern __GLXDRIdrawable *
 589 dri2GetGlxDrawableFromXDrawableId(Display *dpy, XID id);
 590 #endif
 591
 592 extern GLubyte *__glXFlushRenderBuffer(struct glx_context *, GLubyte *);
 593
 594 extern void __glXSendLargeChunk(struct glx_context * gc, GLint requestNumber,
 595                                 GLint totalRequests,
 596                                 const GLvoid * data, GLint dataLen);
 597
 598 extern void __glXSendLargeCommand(struct glx_context *, const GLvoid *, GLint,
 599                                   const GLvoid *, GLint);
 600
 601 /* Initialize the GLX extension for dpy */
 602 extern struct glx_display *__glXInitialize(Display *);
 603
 604 extern void __glXPreferEGL(int state);
 605
 606 /************************************************************************/
 607
 608 extern int __glXDebug;
 609
 610 /* This is per-thread storage in an MT environment */
 611 #if defined( PTHREADS )
 612
 613 extern void __glXSetCurrentContext(struct glx_context * c);
 614
 615 # if defined( GLX_USE_TLS )
 616
 617 extern __thread void *__glX_tls_Context
 618    __attribute__ ((tls_model("initial-exec")));
 619
 620 #  define __glXGetCurrentContext() __glX_tls_Context
 621
 622 # else
 623
 624 extern struct glx_context *__glXGetCurrentContext(void);
 625
 626 # endif /* defined( GLX_USE_TLS ) */
 627
 628 #else
 629
 630 extern struct glx_context *__glXcurrentContext;
 631 #define __glXGetCurrentContext() __glXcurrentContext
 632 #define __glXSetCurrentContext(gc) __glXcurrentContext = gc
 633
 634 #endif /* defined( PTHREADS ) */
 635
 636 extern void __glXSetCurrentContextNull(void);
 637
 638
 639 /*
 640 ** Global lock for all threads in this address space using the GLX
 641 ** extension
 642 */
 643 #if defined( PTHREADS )
 644 extern pthread_mutex_t __glXmutex;
 645 #define __glXLock()    pthread_mutex_lock(&__glXmutex)
 646 #define __glXUnlock()  pthread_mutex_unlock(&__glXmutex)
 647 #else
 648 #define __glXLock()
 649 #define __glXUnlock()
 650 #endif
 651
 652 /*
 653 ** Setup for a command.  Initialize the extension for dpy if necessary.
 654 */
 655 extern CARD8 __glXSetupForCommand(Display * dpy);
 656
 657 /************************************************************************/
 658
 659 /*
 660 ** Data conversion and packing support.
 661 */
 662
 663 extern const GLuint __glXDefaultPixelStore[9];
 664
 665 /* Send an image to the server using RenderLarge. */
 666 extern void __glXSendLargeImage(struct glx_context * gc, GLint compsize, GLint dim,
 667                                 GLint width, GLint height, GLint depth,
 668                                 GLenum format, GLenum type,
 669                                 const GLvoid * src, GLubyte * pc,
 670                                 GLubyte * modes);
 671
 672 /* Return the size, in bytes, of some pixel data */
 673 extern GLint __glImageSize(GLint, GLint, GLint, GLenum, GLenum, GLenum);
 674
 675 /* Return the number of elements per group of a specified format*/
 676 extern GLint __glElementsPerGroup(GLenum format, GLenum type);
 677
 678 /* Return the number of bytes per element, based on the element type (other
 679 ** than GL_BITMAP).
 680 */
 681 extern GLint __glBytesPerElement(GLenum type);
 682
 683 /*
 684 ** Fill the transport buffer with the data from the users buffer,
 685 ** applying some of the pixel store modes (unpack modes) to the data
 686 ** first.  As a side effect of this call, the "modes" field is
 687 ** updated to contain the modes needed by the server to decode the
 688 ** sent data.
 689 */
 690 extern void __glFillImage(struct glx_context *, GLint, GLint, GLint, GLint, GLenum,
 691                           GLenum, const GLvoid *, GLubyte *, GLubyte *);
 692
 693 /* Copy map data with a stride into a packed buffer */
 694 extern void __glFillMap1f(GLint, GLint, GLint, const GLfloat *, GLubyte *);
 695 extern void __glFillMap1d(GLint, GLint, GLint, const GLdouble *, GLubyte *);
 696 extern void __glFillMap2f(GLint, GLint, GLint, GLint, GLint,
 697                           const GLfloat *, GLfloat *);
 698 extern void __glFillMap2d(GLint, GLint, GLint, GLint, GLint,
 699                           const GLdouble *, GLdouble *);
 700
 701 /*
 702 ** Empty an image out of the reply buffer into the clients memory applying
 703 ** the pack modes to pack back into the clients requested format.
 704 */
 705 extern void __glEmptyImage(struct glx_context *, GLint, GLint, GLint, GLint, GLenum,
 706                            GLenum, const GLubyte *, GLvoid *);
 707
 708
 709 /*
 710 ** Allocate and Initialize Vertex Array client state, and free.
 711 */
 712 extern void __glXInitVertexArrayState(struct glx_context *);
 713 extern void __glXFreeVertexArrayState(struct glx_context *);
 714
 715 /*
 716 ** Inform the Server of the major and minor numbers and of the client
 717 ** libraries extension string.
 718 */
 719 extern void __glXClientInfo(Display * dpy, int opcode);
 720
 721 /************************************************************************/
 722
 723 /*
 724 ** Declarations that should be in Xlib
 725 */
 726 #ifdef __GL_USE_OUR_PROTOTYPES
 727 extern void _XFlush(Display *);
 728 extern Status _XReply(Display *, xReply *, int, Bool);
 729 extern void _XRead(Display *, void *, long);
 730 extern void _XSend(Display *, const void *, long);
 731 #endif
 732
 733
 734 extern void __glXInitializeVisualConfigFromTags(struct glx_config * config,
 735                                                 int count, const INT32 * bp,
 736                                                 Bool tagged_only,
 737                                                 Bool fbconfig_style_tags);
 738
 739 extern char *__glXQueryServerString(Display * dpy, int opcode,
 740                                     CARD32 screen, CARD32 name);
 741 extern char *__glXGetString(Display * dpy, int opcode,
 742                             CARD32 screen, CARD32 name);
 743
 744 extern char *__glXstrdup(const char *str);
 745
 746
 747 extern const char __glXGLClientVersion[];
 748 extern const char __glXGLClientExtensions[];
 749
 750 /* Get the unadjusted system time */
 751 extern int __glXGetUST(int64_t * ust);
 752
 753 extern GLboolean __glXGetMscRateOML(Display * dpy, GLXDrawable drawable,
 754                                     int32_t * numerator,
 755                                     int32_t * denominator);
 756
 757 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
 758 extern GLboolean
 759 __glxGetMscRate(__GLXDRIdrawable *glxDraw,
 760                 int32_t * numerator, int32_t * denominator);
 761
 762 /* So that dri2.c:DRI2WireToEvent() can access
 763  * glx_info->codes->first_event */
 764 XExtDisplayInfo *__glXFindDisplay (Display *dpy);
 765
 766 extern void
 767 GarbageCollectDRIDrawables(struct glx_screen *psc);
 768
 769 extern __GLXDRIdrawable *
 770 GetGLXDRIDrawable(Display *dpy, GLXDrawable drawable);
 771 #endif
 772
 773 #ifdef GLX_USE_APPLEGL
 774 extern struct glx_screen *
 775 applegl_create_screen(int screen, struct glx_display * priv);
 776
 777 extern struct glx_context *
 778 applegl_create_context(struct glx_screen *psc,
 779                         struct glx_config *mode,
 780                         struct glx_context *shareList, int renderType);
 781
 782 extern int
 783 applegl_create_display(struct glx_display *display);
 784 #endif
 785
 786 extern struct glx_context dummyContext;
 787
 788 extern struct glx_screen *
 789 indirect_create_screen(int screen, struct glx_display * priv);
 790 extern struct glx_context *
 791 indirect_create_context(struct glx_screen *psc,
 792                         struct glx_config *mode,
 793                         struct glx_context *shareList, int renderType);
 794
 795 #endif /* !__GLX_client_h__ */