glxclient.h revision eeaab2047cfce8a7445fd9f835e737682eb503ac
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/extensions/extutil.h> 43#define GLX_GLXEXT_PROTOTYPES 44#include <GL/glx.h> 45#include <GL/glxext.h> 46#include <string.h> 47#include <stdlib.h> 48#include <stdio.h> 49#ifdef WIN32 50#include <stdint.h> 51#endif 52#include "GL/glxint.h" 53#include "GL/glxproto.h" 54#include "GL/internal/glcore.h" 55#include "glapi/glapitable.h" 56#include "glxhash.h" 57#if defined( PTHREADS ) 58# include <pthread.h> 59#endif 60 61#include "glxextensions.h" 62 63 64/* If we build the library with gcc's -fvisibility=hidden flag, we'll 65 * use the PUBLIC macro to mark functions that are to be exported. 66 * 67 * We also need to define a USED attribute, so the optimizer doesn't 68 * inline a static function that we later use in an alias. - ajax 69 */ 70#if defined(__GNUC__) 71# define PUBLIC __attribute__((visibility("default"))) 72# define USED __attribute__((used)) 73#else 74# define PUBLIC 75# define USED 76#endif 77 78 79 80#define GLX_MAJOR_VERSION 1 /* current version numbers */ 81#define GLX_MINOR_VERSION 4 82 83#define __GLX_MAX_TEXTURE_UNITS 32 84 85typedef struct __GLXscreenConfigsRec __GLXscreenConfigs; 86typedef struct __GLXcontextRec __GLXcontext; 87typedef struct __GLXdrawableRec __GLXdrawable; 88typedef struct __GLXdisplayPrivateRec __GLXdisplayPrivate; 89typedef struct _glapi_table __GLapi; 90 91/************************************************************************/ 92 93#ifdef GLX_DIRECT_RENDERING 94 95#define containerOf(ptr, type, member) \ 96 (type *)( (char *)ptr - offsetof(type,member) ) 97 98extern void DRI_glXUseXFont(GLXContext CC, 99 Font font, int first, int count, int listbase); 100 101#endif 102 103#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) 104 105/** 106 * Display dependent methods. This structure is initialized during the 107 * \c driCreateDisplay call. 108 */ 109typedef struct __GLXDRIdisplayRec __GLXDRIdisplay; 110typedef struct __GLXDRIscreenRec __GLXDRIscreen; 111typedef struct __GLXDRIdrawableRec __GLXDRIdrawable; 112typedef struct __GLXDRIcontextRec __GLXDRIcontext; 113 114#include "glxextensions.h" 115 116struct __GLXDRIdisplayRec 117{ 118 /** 119 * Method to destroy the private DRI display data. 120 */ 121 void (*destroyDisplay) (__GLXDRIdisplay * display); 122 123 __GLXscreenConfigs *(*createScreen)(int screen, __GLXdisplayPrivate * priv); 124}; 125 126struct __GLXDRIscreenRec { 127 128 void (*destroyScreen)(__GLXscreenConfigs *psc); 129 130 __GLXcontext *(*createContext)(__GLXscreenConfigs *psc, 131 const __GLcontextModes *mode, 132 GLXContext shareList, int renderType); 133 134 __GLXDRIdrawable *(*createDrawable)(__GLXscreenConfigs *psc, 135 XID drawable, 136 GLXDrawable glxDrawable, 137 const __GLcontextModes *modes); 138 139 int64_t (*swapBuffers)(__GLXDRIdrawable *pdraw, int64_t target_msc, 140 int64_t divisor, int64_t remainder); 141 void (*copySubBuffer)(__GLXDRIdrawable *pdraw, 142 int x, int y, int width, int height); 143 int (*getDrawableMSC)(__GLXscreenConfigs *psc, __GLXDRIdrawable *pdraw, 144 int64_t *ust, int64_t *msc, int64_t *sbc); 145 int (*waitForMSC)(__GLXDRIdrawable *pdraw, int64_t target_msc, 146 int64_t divisor, int64_t remainder, int64_t *ust, 147 int64_t *msc, int64_t *sbc); 148 int (*waitForSBC)(__GLXDRIdrawable *pdraw, int64_t target_sbc, int64_t *ust, 149 int64_t *msc, int64_t *sbc); 150 int (*setSwapInterval)(__GLXDRIdrawable *pdraw, int interval); 151 int (*getSwapInterval)(__GLXDRIdrawable *pdraw); 152}; 153 154struct __GLXDRIcontextRec 155{ 156 void (*destroyContext) (__GLXcontext *context); 157 Bool(*bindContext) (__GLXcontext *context, __GLXDRIdrawable *pdraw, 158 __GLXDRIdrawable *pread); 159 void (*unbindContext) (__GLXcontext *context); 160}; 161 162struct __GLXDRIdrawableRec 163{ 164 void (*destroyDrawable) (__GLXDRIdrawable * drawable); 165 166 XID xDrawable; 167 XID drawable; 168 __GLXscreenConfigs *psc; 169 GLenum textureTarget; 170 GLenum textureFormat; /* EXT_texture_from_pixmap support */ 171 unsigned long eventMask; 172}; 173 174/* 175** Function to create and DRI display data and initialize the display 176** dependent methods. 177*/ 178extern __GLXDRIdisplay *driswCreateDisplay(Display * dpy); 179extern __GLXDRIdisplay *driCreateDisplay(Display * dpy); 180extern __GLXDRIdisplay *dri2CreateDisplay(Display * dpy); 181extern void dri2InvalidateBuffers(Display *dpy, XID drawable); 182 183 184/* 185** Functions to obtain driver configuration information from a direct 186** rendering client application 187*/ 188extern const char *glXGetScreenDriver(Display * dpy, int scrNum); 189 190extern const char *glXGetDriverConfig(const char *driverName); 191 192#endif 193 194/************************************************************************/ 195 196#define __GL_CLIENT_ATTRIB_STACK_DEPTH 16 197 198typedef struct __GLXpixelStoreModeRec 199{ 200 GLboolean swapEndian; 201 GLboolean lsbFirst; 202 GLuint rowLength; 203 GLuint imageHeight; 204 GLuint imageDepth; 205 GLuint skipRows; 206 GLuint skipPixels; 207 GLuint skipImages; 208 GLuint alignment; 209} __GLXpixelStoreMode; 210 211 212typedef struct __GLXattributeRec 213{ 214 GLuint mask; 215 216 /** 217 * Pixel storage state. Most of the pixel store mode state is kept 218 * here and used by the client code to manage the packing and 219 * unpacking of data sent to/received from the server. 220 */ 221 __GLXpixelStoreMode storePack, storeUnpack; 222 223 /** 224 * Is EXT_vertex_array / GL 1.1 DrawArrays protocol specifically 225 * disabled? 226 */ 227 GLboolean NoDrawArraysProtocol; 228 229 /** 230 * Vertex Array storage state. The vertex array component 231 * state is stored here and is used to manage the packing of 232 * DrawArrays data sent to the server. 233 */ 234 struct array_state_vector *array_state; 235} __GLXattribute; 236 237typedef struct __GLXattributeMachineRec 238{ 239 __GLXattribute *stack[__GL_CLIENT_ATTRIB_STACK_DEPTH]; 240 __GLXattribute **stackPointer; 241} __GLXattributeMachine; 242 243struct glx_context_vtable { 244 void (*wait_gl)(__GLXcontext *ctx); 245 void (*wait_x)(__GLXcontext *ctx); 246 void (*use_x_font)(__GLXcontext *ctx, 247 Font font, int first, int count, int listBase); 248 void (*bind_tex_image)(Display * dpy, 249 GLXDrawable drawable, 250 int buffer, const int *attrib_list); 251 void (*release_tex_image)(Display * dpy, GLXDrawable drawable, int buffer); 252 253}; 254 255/** 256 * GLX state that needs to be kept on the client. One of these records 257 * exist for each context that has been made current by this client. 258 */ 259struct __GLXcontextRec 260{ 261 /** 262 * \name Drawing command buffer. 263 * 264 * Drawing commands are packed into this buffer before being sent as a 265 * single GLX protocol request. The buffer is sent when it overflows or 266 * is flushed by \c __glXFlushRenderBuffer. \c pc is the next location 267 * in the buffer to be filled. \c limit is described above in the buffer 268 * slop discussion. 269 * 270 * Commands that require large amounts of data to be transfered will 271 * also use this buffer to hold a header that describes the large 272 * command. 273 * 274 * These must be the first 6 fields since they are static initialized 275 * in the dummy context in glxext.c 276 */ 277 /*@{ */ 278 GLubyte *buf; 279 GLubyte *pc; 280 GLubyte *limit; 281 GLubyte *bufEnd; 282 GLint bufSize; 283 /*@} */ 284 285 /** 286 * The XID of this rendering context. When the context is created a 287 * new XID is allocated. This is set to None when the context is 288 * destroyed but is still current to some thread. In this case the 289 * context will be freed on next MakeCurrent. 290 */ 291 XID xid; 292 293 /** 294 * The XID of the \c shareList context. 295 */ 296 XID share_xid; 297 298 /** 299 * Screen number. 300 */ 301 GLint screen; 302 __GLXscreenConfigs *psc; 303 304 /** 305 * \c GL_TRUE if the context was created with ImportContext, which 306 * means the server-side context was created by another X client. 307 */ 308 GLboolean imported; 309 310 /** 311 * The context tag returned by MakeCurrent when this context is made 312 * current. This tag is used to identify the context that a thread has 313 * current so that proper server context management can be done. It is 314 * used for all context specific commands (i.e., \c Render, \c RenderLarge, 315 * \c WaitX, \c WaitGL, \c UseXFont, and \c MakeCurrent (for the old 316 * context)). 317 */ 318 GLXContextTag currentContextTag; 319 320 /** 321 * \name Rendering mode 322 * 323 * The rendering mode is kept on the client as well as the server. 324 * When \c glRenderMode is called, the buffer associated with the 325 * previous rendering mode (feedback or select) is filled. 326 */ 327 /*@{ */ 328 GLenum renderMode; 329 GLfloat *feedbackBuf; 330 GLuint *selectBuf; 331 /*@} */ 332 333 /** 334 * This is \c GL_TRUE if the pixel unpack modes are such that an image 335 * can be unpacked from the clients memory by just copying. It may 336 * still be true that the server will have to do some work. This 337 * just promises that a straight copy will fetch the correct bytes. 338 */ 339 GLboolean fastImageUnpack; 340 341 /** 342 * Fill newImage with the unpacked form of \c oldImage getting it 343 * ready for transport to the server. 344 */ 345 void (*fillImage) (__GLXcontext *, GLint, GLint, GLint, GLint, GLenum, 346 GLenum, const GLvoid *, GLubyte *, GLubyte *); 347 348 /** 349 * Client side attribs. 350 */ 351 __GLXattributeMachine attributes; 352 353 /** 354 * Client side error code. This is set when client side gl API 355 * routines need to set an error because of a bad enumerant or 356 * running out of memory, etc. 357 */ 358 GLenum error; 359 360 /** 361 * Whether this context does direct rendering. 362 */ 363 Bool isDirect; 364 365 /** 366 * \c dpy of current display for this context. Will be \c NULL if not 367 * current to any display, or if this is the "dummy context". 368 */ 369 Display *currentDpy; 370 371 /** 372 * The current drawable for this context. Will be None if this 373 * context is not current to any drawable. currentReadable is below. 374 */ 375 GLXDrawable currentDrawable; 376 377 /** 378 * \name GL Constant Strings 379 * 380 * Constant strings that describe the server implementation 381 * These pertain to GL attributes, not to be confused with 382 * GLX versioning attributes. 383 */ 384 /*@{ */ 385 GLubyte *vendor; 386 GLubyte *renderer; 387 GLubyte *version; 388 GLubyte *extensions; 389 /*@} */ 390 391 /** 392 * Maximum small render command size. This is the smaller of 64k and 393 * the size of the above buffer. 394 */ 395 GLint maxSmallRenderCommandSize; 396 397 /** 398 * Major opcode for the extension. Copied here so a lookup isn't 399 * needed. 400 */ 401 GLint majorOpcode; 402 403 /** 404 * Pointer to the mode used to create this context. 405 */ 406 const __GLcontextModes *mode; 407 408#ifdef GLX_DIRECT_RENDERING 409#ifdef GLX_USE_APPLEGL 410 void *driContext; 411 Bool do_destroy; 412#else 413 __GLXDRIcontext *driContext; 414#endif 415#endif 416 417 /** 418 * The current read-drawable for this context. Will be None if this 419 * context is not current to any drawable. 420 * 421 * \since Internal API version 20030606. 422 */ 423 GLXDrawable currentReadable; 424 425 /** 426 * Pointer to client-state data that is private to libGL. This is only 427 * used for indirect rendering contexts. 428 * 429 * No internal API version change was made for this change. Client-side 430 * drivers should NEVER use this data or even care that it exists. 431 */ 432 void *client_state_private; 433 434 /** 435 * Stored value for \c glXQueryContext attribute \c GLX_RENDER_TYPE. 436 */ 437 int renderType; 438 439 /** 440 * \name Raw server GL version 441 * 442 * True core GL version supported by the server. This is the raw value 443 * returned by the server, and it may not reflect what is actually 444 * supported (or reported) by the client-side library. 445 */ 446 /*@{ */ 447 int server_major; /**< Major version number. */ 448 int server_minor; /**< Minor version number. */ 449 /*@} */ 450 451 /** 452 * Thread ID we're currently current in. Zero if none. 453 */ 454 unsigned long thread_id; 455 456 char gl_extension_bits[__GL_EXT_BYTES]; 457 458 const struct glx_context_vtable *vtable; 459}; 460 461extern Bool 462glx_context_init(__GLXcontext *gc, 463 __GLXscreenConfigs *psc, const __GLcontextModes *fbconfig); 464 465#define __glXSetError(gc,code) \ 466 if (!(gc)->error) { \ 467 (gc)->error = code; \ 468 } 469 470extern void __glFreeAttributeState(__GLXcontext *); 471 472/************************************************************************/ 473 474/** 475 * The size of the largest drawing command known to the implementation 476 * that will use the GLXRender GLX command. In this case it is 477 * \c glPolygonStipple. 478 */ 479#define __GLX_MAX_SMALL_RENDER_CMD_SIZE 156 480 481/** 482 * To keep the implementation fast, the code uses a "limit" pointer 483 * to determine when the drawing command buffer is too full to hold 484 * another fixed size command. This constant defines the amount of 485 * space that must always be available in the drawing command buffer 486 * at all times for the implementation to work. It is important that 487 * the number be just large enough, but not so large as to reduce the 488 * efficacy of the buffer. The "+32" is just to keep the code working 489 * in case somebody counts wrong. 490 */ 491#define __GLX_BUFFER_LIMIT_SIZE (__GLX_MAX_SMALL_RENDER_CMD_SIZE + 32) 492 493/** 494 * This implementation uses a smaller threshold for switching 495 * to the RenderLarge protocol than the protcol requires so that 496 * large copies don't occur. 497 */ 498#define __GLX_RENDER_CMD_SIZE_LIMIT 4096 499 500/** 501 * One of these records exists per screen of the display. It contains 502 * a pointer to the config data for that screen (if the screen supports GL). 503 */ 504struct __GLXscreenConfigsRec 505{ 506 /** 507 * GLX extension string reported by the X-server. 508 */ 509 const char *serverGLXexts; 510 511 /** 512 * GLX extension string to be reported to applications. This is the 513 * set of extensions that the application can actually use. 514 */ 515 char *effectiveGLXexts; 516 517 __GLXdisplayPrivate *display; 518 519#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) 520 /** 521 * Per screen direct rendering interface functions and data. 522 */ 523 Display *dpy; 524 int scr; 525 526 __GLXDRIscreen *driScreen; 527#endif 528 529 /** 530 * Linked list of glx visuals and fbconfigs for this screen. 531 */ 532 __GLcontextModes *visuals, *configs; 533 534 /** 535 * Per-screen dynamic GLX extension tracking. The \c direct_support 536 * field only contains enough bits for 64 extensions. Should libGL 537 * ever need to track more than 64 GLX extensions, we can safely grow 538 * this field. The \c __GLXscreenConfigs structure is not used outside 539 * libGL. 540 */ 541 /*@{ */ 542 unsigned char direct_support[8]; 543 GLboolean ext_list_first_time; 544 /*@} */ 545 546}; 547 548/** 549 * Per display private data. One of these records exists for each display 550 * that is using the OpenGL (GLX) extension. 551 */ 552struct __GLXdisplayPrivateRec 553{ 554 /* The extension protocol codes */ 555 XExtCodes *codes; 556 struct __GLXdisplayPrivateRec *next; 557 558 /** 559 * Back pointer to the display 560 */ 561 Display *dpy; 562 563 /** 564 * The \c majorOpcode is common to all connections to the same server. 565 * It is also copied into the context structure. 566 */ 567 int majorOpcode; 568 569 /** 570 * \name Server Version 571 * 572 * Major and minor version returned by the server during initialization. 573 */ 574 /*@{ */ 575 int majorVersion, minorVersion; 576 /*@} */ 577 578 /** 579 * \name Storage for the servers GLX vendor and versions strings. 580 * 581 * These are the same for all screens on this display. These fields will 582 * be filled in on demand. 583 */ 584 /*@{ */ 585 const char *serverGLXvendor; 586 const char *serverGLXversion; 587 /*@} */ 588 589 /** 590 * Configurations of visuals for all screens on this display. 591 * Also, per screen data which now includes the server \c GLX_EXTENSION 592 * string. 593 */ 594 __GLXscreenConfigs **screenConfigs; 595 596#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) 597 __glxHashTable *drawHash; 598 599 /** 600 * Per display direct rendering interface functions and data. 601 */ 602 __GLXDRIdisplay *driswDisplay; 603 __GLXDRIdisplay *driDisplay; 604 __GLXDRIdisplay *dri2Display; 605#endif 606}; 607 608extern int 609glx_screen_init(__GLXscreenConfigs *psc, 610 int screen, __GLXdisplayPrivate * priv); 611 612#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) 613extern __GLXDRIdrawable * 614dri2GetGlxDrawableFromXDrawableId(Display *dpy, XID id); 615#endif 616 617extern GLubyte *__glXFlushRenderBuffer(__GLXcontext *, GLubyte *); 618 619extern void __glXSendLargeChunk(__GLXcontext * gc, GLint requestNumber, 620 GLint totalRequests, 621 const GLvoid * data, GLint dataLen); 622 623extern void __glXSendLargeCommand(__GLXcontext *, const GLvoid *, GLint, 624 const GLvoid *, GLint); 625 626/* Initialize the GLX extension for dpy */ 627extern __GLXdisplayPrivate *__glXInitialize(Display *); 628 629extern void __glXPreferEGL(int state); 630 631/************************************************************************/ 632 633extern int __glXDebug; 634 635/* This is per-thread storage in an MT environment */ 636#if defined( PTHREADS ) 637 638extern void __glXSetCurrentContext(__GLXcontext * c); 639 640# if defined( GLX_USE_TLS ) 641 642extern __thread void *__glX_tls_Context 643 __attribute__ ((tls_model("initial-exec"))); 644 645# define __glXGetCurrentContext() __glX_tls_Context 646 647# else 648 649extern __GLXcontext *__glXGetCurrentContext(void); 650 651# endif /* defined( GLX_USE_TLS ) */ 652 653#else 654 655extern __GLXcontext *__glXcurrentContext; 656#define __glXGetCurrentContext() __glXcurrentContext 657#define __glXSetCurrentContext(gc) __glXcurrentContext = gc 658 659#endif /* defined( PTHREADS ) */ 660 661extern void __glXSetCurrentContextNull(void); 662 663extern void __glXFreeContext(__GLXcontext *); 664 665 666/* 667** Global lock for all threads in this address space using the GLX 668** extension 669*/ 670#if defined( PTHREADS ) 671extern pthread_mutex_t __glXmutex; 672#define __glXLock() pthread_mutex_lock(&__glXmutex) 673#define __glXUnlock() pthread_mutex_unlock(&__glXmutex) 674#else 675#define __glXLock() 676#define __glXUnlock() 677#endif 678 679/* 680** Setup for a command. Initialize the extension for dpy if necessary. 681*/ 682extern CARD8 __glXSetupForCommand(Display * dpy); 683 684/************************************************************************/ 685 686/* 687** Data conversion and packing support. 688*/ 689 690extern const GLuint __glXDefaultPixelStore[9]; 691 692/* Send an image to the server using RenderLarge. */ 693extern void __glXSendLargeImage(__GLXcontext * gc, GLint compsize, GLint dim, 694 GLint width, GLint height, GLint depth, 695 GLenum format, GLenum type, 696 const GLvoid * src, GLubyte * pc, 697 GLubyte * modes); 698 699/* Return the size, in bytes, of some pixel data */ 700extern GLint __glImageSize(GLint, GLint, GLint, GLenum, GLenum, GLenum); 701 702/* Return the number of elements per group of a specified format*/ 703extern GLint __glElementsPerGroup(GLenum format, GLenum type); 704 705/* Return the number of bytes per element, based on the element type (other 706** than GL_BITMAP). 707*/ 708extern GLint __glBytesPerElement(GLenum type); 709 710/* 711** Fill the transport buffer with the data from the users buffer, 712** applying some of the pixel store modes (unpack modes) to the data 713** first. As a side effect of this call, the "modes" field is 714** updated to contain the modes needed by the server to decode the 715** sent data. 716*/ 717extern void __glFillImage(__GLXcontext *, GLint, GLint, GLint, GLint, GLenum, 718 GLenum, const GLvoid *, GLubyte *, GLubyte *); 719 720/* Copy map data with a stride into a packed buffer */ 721extern void __glFillMap1f(GLint, GLint, GLint, const GLfloat *, GLubyte *); 722extern void __glFillMap1d(GLint, GLint, GLint, const GLdouble *, GLubyte *); 723extern void __glFillMap2f(GLint, GLint, GLint, GLint, GLint, 724 const GLfloat *, GLfloat *); 725extern void __glFillMap2d(GLint, GLint, GLint, GLint, GLint, 726 const GLdouble *, GLdouble *); 727 728/* 729** Empty an image out of the reply buffer into the clients memory applying 730** the pack modes to pack back into the clients requested format. 731*/ 732extern void __glEmptyImage(__GLXcontext *, GLint, GLint, GLint, GLint, GLenum, 733 GLenum, const GLubyte *, GLvoid *); 734 735 736/* 737** Allocate and Initialize Vertex Array client state, and free. 738*/ 739extern void __glXInitVertexArrayState(__GLXcontext *); 740extern void __glXFreeVertexArrayState(__GLXcontext *); 741 742/* 743** Inform the Server of the major and minor numbers and of the client 744** libraries extension string. 745*/ 746extern void __glXClientInfo(Display * dpy, int opcode); 747 748/************************************************************************/ 749 750/* 751** Declarations that should be in Xlib 752*/ 753#ifdef __GL_USE_OUR_PROTOTYPES 754extern void _XFlush(Display *); 755extern Status _XReply(Display *, xReply *, int, Bool); 756extern void _XRead(Display *, void *, long); 757extern void _XSend(Display *, const void *, long); 758#endif 759 760 761extern void __glXInitializeVisualConfigFromTags(__GLcontextModes * config, 762 int count, const INT32 * bp, 763 Bool tagged_only, 764 Bool fbconfig_style_tags); 765 766extern char *__glXQueryServerString(Display * dpy, int opcode, 767 CARD32 screen, CARD32 name); 768extern char *__glXGetString(Display * dpy, int opcode, 769 CARD32 screen, CARD32 name); 770 771extern char *__glXstrdup(const char *str); 772 773 774extern const char __glXGLClientVersion[]; 775extern const char __glXGLClientExtensions[]; 776 777/* Get the unadjusted system time */ 778extern int __glXGetUST(int64_t * ust); 779 780extern GLboolean __glXGetMscRateOML(Display * dpy, GLXDrawable drawable, 781 int32_t * numerator, 782 int32_t * denominator); 783 784#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) 785extern GLboolean 786__glxGetMscRate(__GLXDRIdrawable *glxDraw, 787 int32_t * numerator, int32_t * denominator); 788 789/* So that dri2.c:DRI2WireToEvent() can access 790 * glx_info->codes->first_event */ 791XExtDisplayInfo *__glXFindDisplay (Display *dpy); 792 793extern __GLXDRIdrawable * 794GetGLXDRIDrawable(Display *dpy, GLXDrawable drawable); 795 796#endif 797 798#endif /* !__GLX_client_h__ */ 799