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 #include <pthread.h>
  51 #include <stdint.h>
  52 #include "GL/glxproto.h"
  53 #include "glxconfig.h"
  54 #include "glxhash.h"
  55 #include "util/macros.h"
  56
  57 #include "glxextensions.h"
  58
  59
  60 #define GLX_MAJOR_VERSION 1       /* current version numbers */
  61 #define GLX_MINOR_VERSION 4
  62
  63 #define __GLX_MAX_TEXTURE_UNITS 32
  64
  65 struct glx_display;
  66 struct glx_context;
  67
  68 /************************************************************************/
  69
  70 #ifdef GLX_DIRECT_RENDERING
  71
  72 extern void DRI_glXUseXFont(struct glx_context *ctx,
  73                             Font font, int first, int count, int listbase);
  74
  75 #endif
  76
  77 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
  78
  79 /**
  80  * Display dependent methods.  This structure is initialized during the
  81  * \c driCreateDisplay call.
  82  */
  83 typedef struct __GLXDRIdisplayRec __GLXDRIdisplay;
  84 typedef struct __GLXDRIscreenRec __GLXDRIscreen;
  85 typedef struct __GLXDRIdrawableRec __GLXDRIdrawable;
  86
  87 struct __GLXDRIdisplayRec
  88 {
  89     /**
  90      * Method to destroy the private DRI display data.
  91      */
  92    void (*destroyDisplay) (__GLXDRIdisplay * display);
  93
  94    struct glx_screen *(*createScreen)(int screen, struct glx_display * priv);
  95 };
  96
  97 struct __GLXDRIscreenRec {
  98
  99    void (*destroyScreen)(struct glx_screen *psc);
 100
 101    struct glx_context *(*createContext)(struct glx_screen *psc,
 102                                         struct glx_config *config,
 103                                         struct glx_context *shareList,
 104                                         int renderType);
 105
 106    __GLXDRIdrawable *(*createDrawable)(struct glx_screen *psc,
 107                                        XID drawable,
 108                                        GLXDrawable glxDrawable,
 109                                        struct glx_config *config);
 110
 111    int64_t (*swapBuffers)(__GLXDRIdrawable *pdraw, int64_t target_msc,
 112                           int64_t divisor, int64_t remainder, Bool flush);
 113    void (*copySubBuffer)(__GLXDRIdrawable *pdraw,
 114                          int x, int y, int width, int height, Bool flush);
 115    int (*getDrawableMSC)(struct glx_screen *psc, __GLXDRIdrawable *pdraw,
 116                          int64_t *ust, int64_t *msc, int64_t *sbc);
 117    int (*waitForMSC)(__GLXDRIdrawable *pdraw, int64_t target_msc,
 118                      int64_t divisor, int64_t remainder, int64_t *ust,
 119                      int64_t *msc, int64_t *sbc);
 120    int (*waitForSBC)(__GLXDRIdrawable *pdraw, int64_t target_sbc, int64_t *ust,
 121                      int64_t *msc, int64_t *sbc);
 122    int (*setSwapInterval)(__GLXDRIdrawable *pdraw, int interval);
 123    int (*getSwapInterval)(__GLXDRIdrawable *pdraw);
 124    int (*getBufferAge)(__GLXDRIdrawable *pdraw);
 125 };
 126
 127 struct __GLXDRIdrawableRec
 128 {
 129    void (*destroyDrawable) (__GLXDRIdrawable * drawable);
 130
 131    XID xDrawable;
 132    XID drawable;
 133    struct glx_screen *psc;
 134    GLenum textureTarget;
 135    GLenum textureFormat;        /* EXT_texture_from_pixmap support */
 136    unsigned long eventMask;
 137    int refcount;
 138 };
 139
 140 /*
 141 ** Function to create and DRI display data and initialize the display
 142 ** dependent methods.
 143 */
 144 extern __GLXDRIdisplay *driswCreateDisplay(Display * dpy);
 145 extern __GLXDRIdisplay *driCreateDisplay(Display * dpy);
 146 extern __GLXDRIdisplay *dri2CreateDisplay(Display * dpy);
 147 extern void dri2InvalidateBuffers(Display *dpy, XID drawable);
 148 extern unsigned dri2GetSwapEventType(Display *dpy, XID drawable);
 149
 150 extern __GLXDRIdisplay *dri3_create_display(Display * dpy);
 151
 152 /*
 153 ** Functions to obtain driver configuration information from a direct
 154 ** rendering client application
 155 */
 156 extern const char *glXGetScreenDriver(Display * dpy, int scrNum);
 157
 158 extern const char *glXGetDriverConfig(const char *driverName);
 159
 160 #endif
 161
 162 /************************************************************************/
 163
 164 #define __GL_CLIENT_ATTRIB_STACK_DEPTH 16
 165
 166 typedef struct __GLXpixelStoreModeRec
 167 {
 168    GLboolean swapEndian;
 169    GLboolean lsbFirst;
 170    GLuint rowLength;
 171    GLuint imageHeight;
 172    GLuint imageDepth;
 173    GLuint skipRows;
 174    GLuint skipPixels;
 175    GLuint skipImages;
 176    GLuint alignment;
 177 } __GLXpixelStoreMode;
 178
 179
 180 typedef struct __GLXattributeRec
 181 {
 182    GLuint mask;
 183
 184     /**
 185      * Pixel storage state.  Most of the pixel store mode state is kept
 186      * here and used by the client code to manage the packing and
 187      * unpacking of data sent to/received from the server.
 188      */
 189    __GLXpixelStoreMode storePack, storeUnpack;
 190
 191     /**
 192      * Is EXT_vertex_array / GL 1.1 DrawArrays protocol specifically
 193      * disabled?
 194      */
 195    GLboolean NoDrawArraysProtocol;
 196
 197     /**
 198      * Vertex Array storage state.  The vertex array component
 199      * state is stored here and is used to manage the packing of
 200      * DrawArrays data sent to the server.
 201      */
 202    struct array_state_vector *array_state;
 203 } __GLXattribute;
 204
 205 typedef struct __GLXattributeMachineRec
 206 {
 207    __GLXattribute *stack[__GL_CLIENT_ATTRIB_STACK_DEPTH];
 208    __GLXattribute **stackPointer;
 209 } __GLXattributeMachine;
 210
 211 struct glx_context_vtable {
 212    void (*destroy)(struct glx_context *ctx);
 213    int (*bind)(struct glx_context *context, struct glx_context *old,
 214                GLXDrawable draw, GLXDrawable read);
 215    void (*unbind)(struct glx_context *context, struct glx_context *new_ctx);
 216    void (*wait_gl)(struct glx_context *ctx);
 217    void (*wait_x)(struct glx_context *ctx);
 218    void (*use_x_font)(struct glx_context *ctx,
 219                       Font font, int first, int count, int listBase);
 220    void (*bind_tex_image)(Display * dpy,
 221                           GLXDrawable drawable,
 222                           int buffer, const int *attrib_list);
 223    void (*release_tex_image)(Display * dpy, GLXDrawable drawable, int buffer);
 224    void * (*get_proc_address)(const char *symbol);
 225 };
 226
 227 /**
 228  * GLX state that needs to be kept on the client.  One of these records
 229  * exist for each context that has been made current by this client.
 230  */
 231 struct glx_context
 232 {
 233     /**
 234      * \name Drawing command buffer.
 235      *
 236      * Drawing commands are packed into this buffer before being sent as a
 237      * single GLX protocol request.  The buffer is sent when it overflows or
 238      * is flushed by \c __glXFlushRenderBuffer.  \c pc is the next location
 239      * in the buffer to be filled.  \c limit is described above in the buffer
 240      * slop discussion.
 241      *
 242      * Commands that require large amounts of data to be transfered will
 243      * also use this buffer to hold a header that describes the large
 244      * command.
 245      *
 246      * These must be the first 6 fields since they are static initialized
 247      * in the dummy context in glxext.c
 248      */
 249    /*@{ */
 250    GLubyte *buf;
 251    GLubyte *pc;
 252    GLubyte *limit;
 253    GLubyte *bufEnd;
 254    GLint bufSize;
 255    /*@} */
 256
 257    const struct glx_context_vtable *vtable;
 258
 259     /**
 260      * The XID of this rendering context.  When the context is created a
 261      * new XID is allocated.  This is set to None when the context is
 262      * destroyed but is still current to some thread. In this case the
 263      * context will be freed on next MakeCurrent.
 264      */
 265    XID xid;
 266
 267     /**
 268      * The XID of the \c shareList context.
 269      */
 270    XID share_xid;
 271
 272     /**
 273      * Screen number.
 274      */
 275    GLint screen;
 276    struct glx_screen *psc;
 277
 278     /**
 279      * \c GL_TRUE if the context was created with ImportContext, which
 280      * means the server-side context was created by another X client.
 281      */
 282    GLboolean imported;
 283
 284     /**
 285      * The context tag returned by MakeCurrent when this context is made
 286      * current. This tag is used to identify the context that a thread has
 287      * current so that proper server context management can be done.  It is
 288      * used for all context specific commands (i.e., \c Render, \c RenderLarge,
 289      * \c WaitX, \c WaitGL, \c UseXFont, and \c MakeCurrent (for the old
 290      * context)).
 291      */
 292    GLXContextTag currentContextTag;
 293
 294     /**
 295      * \name Rendering mode
 296      *
 297      * The rendering mode is kept on the client as well as the server.
 298      * When \c glRenderMode is called, the buffer associated with the
 299      * previous rendering mode (feedback or select) is filled.
 300      */
 301    /*@{ */
 302    GLenum renderMode;
 303    GLfloat *feedbackBuf;
 304    GLuint *selectBuf;
 305    /*@} */
 306
 307     /**
 308      * Fill newImage with the unpacked form of \c oldImage getting it
 309      * ready for transport to the server.
 310      */
 311    void (*fillImage) (struct glx_context *, GLint, GLint, GLint, GLint, GLenum,
 312                       GLenum, const GLvoid *, GLubyte *, GLubyte *);
 313
 314     /**
 315      * Client side attribs.
 316      */
 317    __GLXattributeMachine attributes;
 318
 319     /**
 320      * Client side error code.  This is set when client side gl API
 321      * routines need to set an error because of a bad enumerant or
 322      * running out of memory, etc.
 323      */
 324    GLenum error;
 325
 326     /**
 327      * Whether this context does direct rendering.
 328      */
 329    Bool isDirect;
 330
 331 #if defined(GLX_DIRECT_RENDERING) && defined(GLX_USE_APPLEGL)
 332    void *driContext;
 333 #endif
 334
 335     /**
 336      * \c dpy of current display for this context.  Will be \c NULL if not
 337      * current to any display, or if this is the "dummy context".
 338      */
 339    Display *currentDpy;
 340
 341     /**
 342      * The current drawable for this context.  Will be None if this
 343      * context is not current to any drawable.  currentReadable is below.
 344      */
 345    GLXDrawable currentDrawable;
 346
 347     /**
 348      * \name GL Constant Strings
 349      *
 350      * Constant strings that describe the server implementation
 351      * These pertain to GL attributes, not to be confused with
 352      * GLX versioning attributes.
 353      */
 354    /*@{ */
 355    GLubyte *vendor;
 356    GLubyte *renderer;
 357    GLubyte *version;
 358    GLubyte *extensions;
 359    /*@} */
 360
 361     /**
 362      * Maximum small render command size.  This is the smaller of 64k and
 363      * the size of the above buffer.
 364      */
 365    GLint maxSmallRenderCommandSize;
 366
 367     /**
 368      * Major opcode for the extension.  Copied here so a lookup isn't
 369      * needed.
 370      */
 371    GLint majorOpcode;
 372
 373     /**
 374      * Pointer to the config used to create this context.
 375      */
 376    struct glx_config *config;
 377
 378     /**
 379      * The current read-drawable for this context.  Will be None if this
 380      * context is not current to any drawable.
 381      *
 382      * \since Internal API version 20030606.
 383      */
 384    GLXDrawable currentReadable;
 385
 386    /**
 387     * Pointer to client-state data that is private to libGL.  This is only
 388     * used for indirect rendering contexts.
 389     *
 390     * No internal API version change was made for this change.  Client-side
 391     * drivers should NEVER use this data or even care that it exists.
 392     */
 393    void *client_state_private;
 394
 395    /**
 396     * Stored value for \c glXQueryContext attribute \c GLX_RENDER_TYPE.
 397     */
 398    int renderType;
 399
 400    /**
 401     * \name Raw server GL version
 402     *
 403     * True core GL version supported by the server.  This is the raw value
 404     * returned by the server, and it may not reflect what is actually
 405     * supported (or reported) by the client-side library.
 406     */
 407    /*@{ */
 408    int server_major;        /**< Major version number. */
 409    int server_minor;        /**< Minor version number. */
 410    /*@} */
 411
 412    /**
 413     * Number of threads we're currently current in.
 414     */
 415    unsigned long thread_refcount;
 416
 417    char gl_extension_bits[__GL_EXT_BYTES];
 418 };
 419
 420 extern Bool
 421 glx_context_init(struct glx_context *gc,
 422                  struct glx_screen *psc, struct glx_config *fbconfig);
 423
 424 #define __glXSetError(gc,code)  \
 425    if (!(gc)->error) {          \
 426       (gc)->error = code;       \
 427    }
 428
 429 extern void __glFreeAttributeState(struct glx_context *);
 430
 431 /************************************************************************/
 432
 433 /**
 434  * The size of the largest drawing command known to the implementation
 435  * that will use the GLXRender GLX command.  In this case it is
 436  * \c glPolygonStipple.
 437  */
 438 #define __GLX_MAX_SMALL_RENDER_CMD_SIZE 156
 439
 440 /**
 441  * To keep the implementation fast, the code uses a "limit" pointer
 442  * to determine when the drawing command buffer is too full to hold
 443  * another fixed size command.  This constant defines the amount of
 444  * space that must always be available in the drawing command buffer
 445  * at all times for the implementation to work.  It is important that
 446  * the number be just large enough, but not so large as to reduce the
 447  * efficacy of the buffer.  The "+32" is just to keep the code working
 448  * in case somebody counts wrong.
 449  */
 450 #define __GLX_BUFFER_LIMIT_SIZE (__GLX_MAX_SMALL_RENDER_CMD_SIZE + 32)
 451
 452 /**
 453  * This implementation uses a smaller threshold for switching
 454  * to the RenderLarge protocol than the protcol requires so that
 455  * large copies don't occur.
 456  */
 457 #define __GLX_RENDER_CMD_SIZE_LIMIT 4096
 458
 459 /**
 460  * One of these records exists per screen of the display.  It contains
 461  * a pointer to the config data for that screen (if the screen supports GL).
 462  */
 463 struct glx_screen_vtable {
 464    struct glx_context *(*create_context)(struct glx_screen *psc,
 465                                          struct glx_config *config,
 466                                          struct glx_context *shareList,
 467                                          int renderType);
 468
 469    struct glx_context *(*create_context_attribs)(struct glx_screen *psc,
 470                                                  struct glx_config *config,
 471                                                  struct glx_context *shareList,
 472                                                  unsigned num_attrib,
 473                                                  const uint32_t *attribs,
 474                                                  unsigned *error);
 475    int (*query_renderer_integer)(struct glx_screen *psc,
 476                                  int attribute,
 477                                  unsigned int *value);
 478    int (*query_renderer_string)(struct glx_screen *psc,
 479                                 int attribute,
 480                                 const char **value);
 481 };
 482
 483 struct glx_screen
 484 {
 485    const struct glx_screen_vtable *vtable;
 486
 487     /**
 488      * GLX extension string reported by the X-server.
 489      */
 490    const char *serverGLXexts;
 491
 492     /**
 493      * GLX extension string to be reported to applications.  This is the
 494      * set of extensions that the application can actually use.
 495      */
 496    char *effectiveGLXexts;
 497
 498    struct glx_display *display;
 499
 500    Display *dpy;
 501    int scr;
 502
 503 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
 504     /**
 505      * Per screen direct rendering interface functions and data.
 506      */
 507    __GLXDRIscreen *driScreen;
 508 #endif
 509
 510     /**
 511      * Linked list of glx visuals and  fbconfigs for this screen.
 512      */
 513    struct glx_config *visuals, *configs;
 514
 515     /**
 516      * Per-screen dynamic GLX extension tracking.  The \c direct_support
 517      * field only contains enough bits for 64 extensions.  Should libGL
 518      * ever need to track more than 64 GLX extensions, we can safely grow
 519      * this field.  The \c struct glx_screen structure is not used outside
 520      * libGL.
 521      */
 522    /*@{ */
 523    unsigned char direct_support[8];
 524    GLboolean ext_list_first_time;
 525    /*@} */
 526
 527 };
 528
 529 /**
 530  * Per display private data.  One of these records exists for each display
 531  * that is using the OpenGL (GLX) extension.
 532  */
 533 struct glx_display
 534 {
 535    /* The extension protocol codes */
 536    XExtCodes *codes;
 537    struct glx_display *next;
 538
 539     /**
 540      * Back pointer to the display
 541      */
 542    Display *dpy;
 543
 544     /**
 545      * The \c majorOpcode is common to all connections to the same server.
 546      * It is also copied into the context structure.
 547      */
 548    int majorOpcode;
 549
 550     /**
 551      * \name Server Version
 552      *
 553      * Major and minor version returned by the server during initialization.
 554      */
 555    /*@{ */
 556    int majorVersion, minorVersion;
 557    /*@} */
 558
 559     /**
 560      * \name Storage for the servers GLX vendor and versions strings.
 561      *
 562      * These are the same for all screens on this display. These fields will
 563      * be filled in on demand.
 564      */
 565    /*@{ */
 566    const char *serverGLXvendor;
 567    const char *serverGLXversion;
 568    /*@} */
 569
 570     /**
 571      * Configurations of visuals for all screens on this display.
 572      * Also, per screen data which now includes the server \c GLX_EXTENSION
 573      * string.
 574      */
 575    struct glx_screen **screens;
 576
 577    __glxHashTable *glXDrawHash;
 578
 579 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
 580    __glxHashTable *drawHash;
 581
 582     /**
 583      * Per display direct rendering interface functions and data.
 584      */
 585    __GLXDRIdisplay *driswDisplay;
 586    __GLXDRIdisplay *driDisplay;
 587    __GLXDRIdisplay *dri2Display;
 588    __GLXDRIdisplay *dri3Display;
 589 #endif
 590 };
 591
 592 struct glx_drawable {
 593    XID xDrawable;
 594    XID drawable;
 595
 596    uint32_t lastEventSbc;
 597    int64_t eventSbcWrap;
 598 };
 599
 600 extern int
 601 glx_screen_init(struct glx_screen *psc,
 602                 int screen, struct glx_display * priv);
 603 extern void
 604 glx_screen_cleanup(struct glx_screen *psc);
 605
 606 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
 607 extern __GLXDRIdrawable *
 608 dri2GetGlxDrawableFromXDrawableId(Display *dpy, XID id);
 609 #endif
 610
 611 extern GLubyte *__glXFlushRenderBuffer(struct glx_context *, GLubyte *);
 612
 613 extern void __glXSendLargeChunk(struct glx_context * gc, GLint requestNumber,
 614                                 GLint totalRequests,
 615                                 const GLvoid * data, GLint dataLen);
 616
 617 extern void __glXSendLargeCommand(struct glx_context *, const GLvoid *, GLint,
 618                                   const GLvoid *, GLint);
 619
 620 /* Initialize the GLX extension for dpy */
 621 extern struct glx_display *__glXInitialize(Display *);
 622
 623 extern void __glXPreferEGL(int state);
 624
 625 /************************************************************************/
 626
 627 extern int __glXDebug;
 628
 629 /* This is per-thread storage in an MT environment */
 630
 631 extern void __glXSetCurrentContext(struct glx_context * c);
 632
 633 # if defined( GLX_USE_TLS )
 634
 635 extern __thread void *__glX_tls_Context
 636    __attribute__ ((tls_model("initial-exec")));
 637
 638 #  define __glXGetCurrentContext() __glX_tls_Context
 639
 640 # else
 641
 642 extern struct glx_context *__glXGetCurrentContext(void);
 643
 644 # endif /* defined( GLX_USE_TLS ) */
 645
 646 extern void __glXSetCurrentContextNull(void);
 647
 648
 649 /*
 650 ** Global lock for all threads in this address space using the GLX
 651 ** extension
 652 */
 653 extern pthread_mutex_t __glXmutex;
 654 #define __glXLock()    pthread_mutex_lock(&__glXmutex)
 655 #define __glXUnlock()  pthread_mutex_unlock(&__glXmutex)
 656
 657 /*
 658 ** Setup for a command.  Initialize the extension for dpy if necessary.
 659 */
 660 extern CARD8 __glXSetupForCommand(Display * dpy);
 661
 662 /************************************************************************/
 663
 664 /*
 665 ** Data conversion and packing support.
 666 */
 667
 668 extern const GLuint __glXDefaultPixelStore[9];
 669
 670 /* Send an image to the server using RenderLarge. */
 671 extern void __glXSendLargeImage(struct glx_context * gc, GLint compsize, GLint dim,
 672                                 GLint width, GLint height, GLint depth,
 673                                 GLenum format, GLenum type,
 674                                 const GLvoid * src, GLubyte * pc,
 675                                 GLubyte * modes);
 676
 677 /* Return the size, in bytes, of some pixel data */
 678 extern GLint __glImageSize(GLint, GLint, GLint, GLenum, GLenum, GLenum);
 679
 680 /* Return the number of elements per group of a specified format*/
 681 extern GLint __glElementsPerGroup(GLenum format, GLenum type);
 682
 683 /* Return the number of bytes per element, based on the element type (other
 684 ** than GL_BITMAP).
 685 */
 686 extern GLint __glBytesPerElement(GLenum type);
 687
 688 /*
 689 ** Fill the transport buffer with the data from the users buffer,
 690 ** applying some of the pixel store modes (unpack modes) to the data
 691 ** first.  As a side effect of this call, the "modes" field is
 692 ** updated to contain the modes needed by the server to decode the
 693 ** sent data.
 694 */
 695 extern void __glFillImage(struct glx_context *, GLint, GLint, GLint, GLint, GLenum,
 696                           GLenum, const GLvoid *, GLubyte *, GLubyte *);
 697
 698 /* Copy map data with a stride into a packed buffer */
 699 extern void __glFillMap1f(GLint, GLint, GLint, const GLfloat *, GLubyte *);
 700 extern void __glFillMap1d(GLint, GLint, GLint, const GLdouble *, GLubyte *);
 701 extern void __glFillMap2f(GLint, GLint, GLint, GLint, GLint,
 702                           const GLfloat *, GLfloat *);
 703 extern void __glFillMap2d(GLint, GLint, GLint, GLint, GLint,
 704                           const GLdouble *, GLdouble *);
 705
 706 /*
 707 ** Empty an image out of the reply buffer into the clients memory applying
 708 ** the pack modes to pack back into the clients requested format.
 709 */
 710 extern void __glEmptyImage(struct glx_context *, GLint, GLint, GLint, GLint, GLenum,
 711                            GLenum, const GLubyte *, GLvoid *);
 712
 713
 714 /*
 715 ** Allocate and Initialize Vertex Array client state, and free.
 716 */
 717 extern void __glXInitVertexArrayState(struct glx_context *);
 718 extern void __glXFreeVertexArrayState(struct glx_context *);
 719
 720 /*
 721 ** Inform the Server of the major and minor numbers and of the client
 722 ** libraries extension string.
 723 */
 724 extern void __glXClientInfo(Display * dpy, int opcode);
 725
 726 _X_HIDDEN void
 727 __glX_send_client_info(struct glx_display *glx_dpy);
 728
 729 /************************************************************************/
 730
 731 /*
 732 ** Declarations that should be in Xlib
 733 */
 734 #ifdef __GL_USE_OUR_PROTOTYPES
 735 extern void _XFlush(Display *);
 736 extern Status _XReply(Display *, xReply *, int, Bool);
 737 extern void _XRead(Display *, void *, long);
 738 extern void _XSend(Display *, const void *, long);
 739 #endif
 740
 741
 742 extern void __glXInitializeVisualConfigFromTags(struct glx_config * config,
 743                                                 int count, const INT32 * bp,
 744                                                 Bool tagged_only,
 745                                                 Bool fbconfig_style_tags);
 746
 747 extern char *__glXQueryServerString(Display * dpy, int opcode,
 748                                     CARD32 screen, CARD32 name);
 749 extern char *__glXGetString(Display * dpy, int opcode,
 750                             CARD32 screen, CARD32 name);
 751
 752 extern const char __glXGLClientVersion[];
 753 extern const char __glXGLClientExtensions[];
 754
 755 /* Get the unadjusted system time */
 756 extern int __glXGetUST(int64_t * ust);
 757
 758 extern GLboolean __glXGetMscRateOML(Display * dpy, GLXDrawable drawable,
 759                                     int32_t * numerator,
 760                                     int32_t * denominator);
 761
 762 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
 763 extern GLboolean
 764 __glxGetMscRate(struct glx_screen *psc,
 765                 int32_t * numerator, int32_t * denominator);
 766
 767 /* So that dri2.c:DRI2WireToEvent() can access
 768  * glx_info->codes->first_event */
 769 XExtDisplayInfo *__glXFindDisplay (Display *dpy);
 770
 771 extern void
 772 GarbageCollectDRIDrawables(struct glx_screen *psc);
 773
 774 extern __GLXDRIdrawable *
 775 GetGLXDRIDrawable(Display *dpy, GLXDrawable drawable);
 776 #endif
 777
 778 extern struct glx_screen *GetGLXScreenConfigs(Display * dpy, int scrn);
 779
 780 #ifdef GLX_USE_APPLEGL
 781 extern struct glx_screen *
 782 applegl_create_screen(int screen, struct glx_display * priv);
 783
 784 extern struct glx_context *
 785 applegl_create_context(struct glx_screen *psc,
 786                         struct glx_config *mode,
 787                         struct glx_context *shareList, int renderType);
 788
 789 extern int
 790 applegl_create_display(struct glx_display *display);
 791 #endif
 792
 793 extern Bool validate_renderType_against_config(const struct glx_config *config,
 794                                                int renderType);
 795
 796
 797 extern struct glx_drawable *GetGLXDrawable(Display *dpy, GLXDrawable drawable);
 798 extern int InitGLXDrawable(Display *dpy, struct glx_drawable *glxDraw,
 799                            XID xDrawable, GLXDrawable drawable);
 800 extern void DestroyGLXDrawable(Display *dpy, GLXDrawable drawable);
 801
 802 extern struct glx_context dummyContext;
 803
 804 extern struct glx_screen *
 805 indirect_create_screen(int screen, struct glx_display * priv);
 806 extern struct glx_context *
 807 indirect_create_context(struct glx_screen *psc,
 808                         struct glx_config *mode,
 809                         struct glx_context *shareList, int renderType);
 810 extern struct glx_context *
 811 indirect_create_context_attribs(struct glx_screen *base,
 812                                 struct glx_config *config_base,
 813                                 struct glx_context *shareList,
 814                                 unsigned num_attribs,
 815                                 const uint32_t *attribs,
 816                                 unsigned *error);
 817
 818 #endif /* !__GLX_client_h__ */