glxclient.h revision 60fce15447da7d4135ace6f1433896b0a02bcfee
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 70struct glx_display; 71struct glx_context; 72 73/************************************************************************/ 74 75#ifdef GLX_DIRECT_RENDERING 76 77extern 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 */ 88typedef struct __GLXDRIdisplayRec __GLXDRIdisplay; 89typedef struct __GLXDRIscreenRec __GLXDRIscreen; 90typedef struct __GLXDRIdrawableRec __GLXDRIdrawable; 91 92#include "glxextensions.h" 93 94struct __GLXDRIdisplayRec 95{ 96 /** 97 * Method to destroy the private DRI display data. 98 */ 99 void (*destroyDisplay) (__GLXDRIdisplay * display); 100 101 struct glx_screen *(*createScreen)(int screen, struct glx_display * priv); 102}; 103 104struct __GLXDRIscreenRec { 105 106 void (*destroyScreen)(struct glx_screen *psc); 107 108 struct glx_context *(*createContext)(struct glx_screen *psc, 109 struct glx_config *config, 110 struct glx_context *shareList, 111 int renderType); 112 113 __GLXDRIdrawable *(*createDrawable)(struct glx_screen *psc, 114 XID drawable, 115 GLXDrawable glxDrawable, 116 struct glx_config *config); 117 118 int64_t (*swapBuffers)(__GLXDRIdrawable *pdraw, int64_t target_msc, 119 int64_t divisor, int64_t remainder); 120 void (*copySubBuffer)(__GLXDRIdrawable *pdraw, 121 int x, int y, int width, int height); 122 int (*getDrawableMSC)(struct glx_screen *psc, __GLXDRIdrawable *pdraw, 123 int64_t *ust, int64_t *msc, int64_t *sbc); 124 int (*waitForMSC)(__GLXDRIdrawable *pdraw, int64_t target_msc, 125 int64_t divisor, int64_t remainder, int64_t *ust, 126 int64_t *msc, int64_t *sbc); 127 int (*waitForSBC)(__GLXDRIdrawable *pdraw, int64_t target_sbc, int64_t *ust, 128 int64_t *msc, int64_t *sbc); 129 int (*setSwapInterval)(__GLXDRIdrawable *pdraw, int interval); 130 int (*getSwapInterval)(__GLXDRIdrawable *pdraw); 131}; 132 133struct __GLXDRIdrawableRec 134{ 135 void (*destroyDrawable) (__GLXDRIdrawable * drawable); 136 137 XID xDrawable; 138 XID drawable; 139 struct glx_screen *psc; 140 GLenum textureTarget; 141 GLenum textureFormat; /* EXT_texture_from_pixmap support */ 142 unsigned long eventMask; 143}; 144 145/* 146** Function to create and DRI display data and initialize the display 147** dependent methods. 148*/ 149extern __GLXDRIdisplay *driswCreateDisplay(Display * dpy); 150extern __GLXDRIdisplay *driCreateDisplay(Display * dpy); 151extern __GLXDRIdisplay *dri2CreateDisplay(Display * dpy); 152extern void dri2InvalidateBuffers(Display *dpy, XID drawable); 153 154 155/* 156** Functions to obtain driver configuration information from a direct 157** rendering client application 158*/ 159extern const char *glXGetScreenDriver(Display * dpy, int scrNum); 160 161extern const char *glXGetDriverConfig(const char *driverName); 162 163#endif 164 165/************************************************************************/ 166 167#define __GL_CLIENT_ATTRIB_STACK_DEPTH 16 168 169typedef struct __GLXpixelStoreModeRec 170{ 171 GLboolean swapEndian; 172 GLboolean lsbFirst; 173 GLuint rowLength; 174 GLuint imageHeight; 175 GLuint imageDepth; 176 GLuint skipRows; 177 GLuint skipPixels; 178 GLuint skipImages; 179 GLuint alignment; 180} __GLXpixelStoreMode; 181 182 183typedef struct __GLXattributeRec 184{ 185 GLuint mask; 186 187 /** 188 * Pixel storage state. Most of the pixel store mode state is kept 189 * here and used by the client code to manage the packing and 190 * unpacking of data sent to/received from the server. 191 */ 192 __GLXpixelStoreMode storePack, storeUnpack; 193 194 /** 195 * Is EXT_vertex_array / GL 1.1 DrawArrays protocol specifically 196 * disabled? 197 */ 198 GLboolean NoDrawArraysProtocol; 199 200 /** 201 * Vertex Array storage state. The vertex array component 202 * state is stored here and is used to manage the packing of 203 * DrawArrays data sent to the server. 204 */ 205 struct array_state_vector *array_state; 206} __GLXattribute; 207 208typedef struct __GLXattributeMachineRec 209{ 210 __GLXattribute *stack[__GL_CLIENT_ATTRIB_STACK_DEPTH]; 211 __GLXattribute **stackPointer; 212} __GLXattributeMachine; 213 214struct glx_context_vtable { 215 void (*destroy)(struct glx_context *ctx); 216 int (*bind)(struct glx_context *context, struct glx_context *old, 217 GLXDrawable draw, GLXDrawable read); 218 void (*unbind)(struct glx_context *context, struct glx_context *new); 219 void (*wait_gl)(struct glx_context *ctx); 220 void (*wait_x)(struct glx_context *ctx); 221 void (*use_x_font)(struct glx_context *ctx, 222 Font font, int first, int count, int listBase); 223 void (*bind_tex_image)(Display * dpy, 224 GLXDrawable drawable, 225 int buffer, const int *attrib_list); 226 void (*release_tex_image)(Display * dpy, GLXDrawable drawable, int buffer); 227 228}; 229 230extern void 231glx_send_destroy_context(Display *dpy, XID xid); 232 233/** 234 * GLX state that needs to be kept on the client. One of these records 235 * exist for each context that has been made current by this client. 236 */ 237struct glx_context 238{ 239 /** 240 * \name Drawing command buffer. 241 * 242 * Drawing commands are packed into this buffer before being sent as a 243 * single GLX protocol request. The buffer is sent when it overflows or 244 * is flushed by \c __glXFlushRenderBuffer. \c pc is the next location 245 * in the buffer to be filled. \c limit is described above in the buffer 246 * slop discussion. 247 * 248 * Commands that require large amounts of data to be transfered will 249 * also use this buffer to hold a header that describes the large 250 * command. 251 * 252 * These must be the first 6 fields since they are static initialized 253 * in the dummy context in glxext.c 254 */ 255 /*@{ */ 256 GLubyte *buf; 257 GLubyte *pc; 258 GLubyte *limit; 259 GLubyte *bufEnd; 260 GLint bufSize; 261 /*@} */ 262 263 /** 264 * The XID of this rendering context. When the context is created a 265 * new XID is allocated. This is set to None when the context is 266 * destroyed but is still current to some thread. In this case the 267 * context will be freed on next MakeCurrent. 268 */ 269 XID xid; 270 271 /** 272 * The XID of the \c shareList context. 273 */ 274 XID share_xid; 275 276 /** 277 * Screen number. 278 */ 279 GLint screen; 280 struct glx_screen *psc; 281 282 /** 283 * \c GL_TRUE if the context was created with ImportContext, which 284 * means the server-side context was created by another X client. 285 */ 286 GLboolean imported; 287 288 /** 289 * The context tag returned by MakeCurrent when this context is made 290 * current. This tag is used to identify the context that a thread has 291 * current so that proper server context management can be done. It is 292 * used for all context specific commands (i.e., \c Render, \c RenderLarge, 293 * \c WaitX, \c WaitGL, \c UseXFont, and \c MakeCurrent (for the old 294 * context)). 295 */ 296 GLXContextTag currentContextTag; 297 298 /** 299 * \name Rendering mode 300 * 301 * The rendering mode is kept on the client as well as the server. 302 * When \c glRenderMode is called, the buffer associated with the 303 * previous rendering mode (feedback or select) is filled. 304 */ 305 /*@{ */ 306 GLenum renderMode; 307 GLfloat *feedbackBuf; 308 GLuint *selectBuf; 309 /*@} */ 310 311 /** 312 * This is \c GL_TRUE if the pixel unpack modes are such that an image 313 * can be unpacked from the clients memory by just copying. It may 314 * still be true that the server will have to do some work. This 315 * just promises that a straight copy will fetch the correct bytes. 316 */ 317 GLboolean fastImageUnpack; 318 319 /** 320 * Fill newImage with the unpacked form of \c oldImage getting it 321 * ready for transport to the server. 322 */ 323 void (*fillImage) (struct glx_context *, GLint, GLint, GLint, GLint, GLenum, 324 GLenum, const GLvoid *, GLubyte *, GLubyte *); 325 326 /** 327 * Client side attribs. 328 */ 329 __GLXattributeMachine attributes; 330 331 /** 332 * Client side error code. This is set when client side gl API 333 * routines need to set an error because of a bad enumerant or 334 * running out of memory, etc. 335 */ 336 GLenum error; 337 338 /** 339 * Whether this context does direct rendering. 340 */ 341 Bool isDirect; 342 343 /** 344 * \c dpy of current display for this context. Will be \c NULL if not 345 * current to any display, or if this is the "dummy context". 346 */ 347 Display *currentDpy; 348 349 /** 350 * The current drawable for this context. Will be None if this 351 * context is not current to any drawable. currentReadable is below. 352 */ 353 GLXDrawable currentDrawable; 354 355 /** 356 * \name GL Constant Strings 357 * 358 * Constant strings that describe the server implementation 359 * These pertain to GL attributes, not to be confused with 360 * GLX versioning attributes. 361 */ 362 /*@{ */ 363 GLubyte *vendor; 364 GLubyte *renderer; 365 GLubyte *version; 366 GLubyte *extensions; 367 /*@} */ 368 369 /** 370 * Maximum small render command size. This is the smaller of 64k and 371 * the size of the above buffer. 372 */ 373 GLint maxSmallRenderCommandSize; 374 375 /** 376 * Major opcode for the extension. Copied here so a lookup isn't 377 * needed. 378 */ 379 GLint majorOpcode; 380 381 /** 382 * Pointer to the config used to create this context. 383 */ 384 struct glx_config *config; 385 386 /** 387 * The current read-drawable for this context. Will be None if this 388 * context is not current to any drawable. 389 * 390 * \since Internal API version 20030606. 391 */ 392 GLXDrawable currentReadable; 393 394 /** 395 * Pointer to client-state data that is private to libGL. This is only 396 * used for indirect rendering contexts. 397 * 398 * No internal API version change was made for this change. Client-side 399 * drivers should NEVER use this data or even care that it exists. 400 */ 401 void *client_state_private; 402 403 /** 404 * Stored value for \c glXQueryContext attribute \c GLX_RENDER_TYPE. 405 */ 406 int renderType; 407 408 /** 409 * \name Raw server GL version 410 * 411 * True core GL version supported by the server. This is the raw value 412 * returned by the server, and it may not reflect what is actually 413 * supported (or reported) by the client-side library. 414 */ 415 /*@{ */ 416 int server_major; /**< Major version number. */ 417 int server_minor; /**< Minor version number. */ 418 /*@} */ 419 420 /** 421 * Thread ID we're currently current in. Zero if none. 422 */ 423 unsigned long thread_id; 424 425 char gl_extension_bits[__GL_EXT_BYTES]; 426 427 const struct glx_context_vtable *vtable; 428}; 429 430extern Bool 431glx_context_init(struct glx_context *gc, 432 struct glx_screen *psc, struct glx_config *fbconfig); 433 434#define __glXSetError(gc,code) \ 435 if (!(gc)->error) { \ 436 (gc)->error = code; \ 437 } 438 439extern void __glFreeAttributeState(struct glx_context *); 440 441/************************************************************************/ 442 443/** 444 * The size of the largest drawing command known to the implementation 445 * that will use the GLXRender GLX command. In this case it is 446 * \c glPolygonStipple. 447 */ 448#define __GLX_MAX_SMALL_RENDER_CMD_SIZE 156 449 450/** 451 * To keep the implementation fast, the code uses a "limit" pointer 452 * to determine when the drawing command buffer is too full to hold 453 * another fixed size command. This constant defines the amount of 454 * space that must always be available in the drawing command buffer 455 * at all times for the implementation to work. It is important that 456 * the number be just large enough, but not so large as to reduce the 457 * efficacy of the buffer. The "+32" is just to keep the code working 458 * in case somebody counts wrong. 459 */ 460#define __GLX_BUFFER_LIMIT_SIZE (__GLX_MAX_SMALL_RENDER_CMD_SIZE + 32) 461 462/** 463 * This implementation uses a smaller threshold for switching 464 * to the RenderLarge protocol than the protcol requires so that 465 * large copies don't occur. 466 */ 467#define __GLX_RENDER_CMD_SIZE_LIMIT 4096 468 469/** 470 * One of these records exists per screen of the display. It contains 471 * a pointer to the config data for that screen (if the screen supports GL). 472 */ 473struct glx_screen_vtable { 474 struct glx_context *(*create_context)(struct glx_screen *psc, 475 struct glx_config *config, 476 struct glx_context *shareList, 477 int renderType); 478}; 479 480struct glx_screen 481{ 482 const struct glx_screen_vtable *vtable; 483 484 /** 485 * GLX extension string reported by the X-server. 486 */ 487 const char *serverGLXexts; 488 489 /** 490 * GLX extension string to be reported to applications. This is the 491 * set of extensions that the application can actually use. 492 */ 493 char *effectiveGLXexts; 494 495 struct glx_display *display; 496 497 Display *dpy; 498 int scr; 499 500#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) 501 /** 502 * Per screen direct rendering interface functions and data. 503 */ 504 __GLXDRIscreen *driScreen; 505#endif 506 507 /** 508 * Linked list of glx visuals and fbconfigs for this screen. 509 */ 510 struct glx_config *visuals, *configs; 511 512 /** 513 * Per-screen dynamic GLX extension tracking. The \c direct_support 514 * field only contains enough bits for 64 extensions. Should libGL 515 * ever need to track more than 64 GLX extensions, we can safely grow 516 * this field. The \c struct glx_screen structure is not used outside 517 * libGL. 518 */ 519 /*@{ */ 520 unsigned char direct_support[8]; 521 GLboolean ext_list_first_time; 522 /*@} */ 523 524}; 525 526/** 527 * Per display private data. One of these records exists for each display 528 * that is using the OpenGL (GLX) extension. 529 */ 530struct glx_display 531{ 532 /* The extension protocol codes */ 533 XExtCodes *codes; 534 struct glx_display *next; 535 536 /** 537 * Back pointer to the display 538 */ 539 Display *dpy; 540 541 /** 542 * The \c majorOpcode is common to all connections to the same server. 543 * It is also copied into the context structure. 544 */ 545 int majorOpcode; 546 547 /** 548 * \name Server Version 549 * 550 * Major and minor version returned by the server during initialization. 551 */ 552 /*@{ */ 553 int majorVersion, minorVersion; 554 /*@} */ 555 556 /** 557 * \name Storage for the servers GLX vendor and versions strings. 558 * 559 * These are the same for all screens on this display. These fields will 560 * be filled in on demand. 561 */ 562 /*@{ */ 563 const char *serverGLXvendor; 564 const char *serverGLXversion; 565 /*@} */ 566 567 /** 568 * Configurations of visuals for all screens on this display. 569 * Also, per screen data which now includes the server \c GLX_EXTENSION 570 * string. 571 */ 572 struct glx_screen **screens; 573 574#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) 575 __glxHashTable *drawHash; 576 577 /** 578 * Per display direct rendering interface functions and data. 579 */ 580 __GLXDRIdisplay *driswDisplay; 581 __GLXDRIdisplay *driDisplay; 582 __GLXDRIdisplay *dri2Display; 583#endif 584}; 585 586extern int 587glx_screen_init(struct glx_screen *psc, 588 int screen, struct glx_display * priv); 589 590#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) 591extern __GLXDRIdrawable * 592dri2GetGlxDrawableFromXDrawableId(Display *dpy, XID id); 593#endif 594 595extern GLubyte *__glXFlushRenderBuffer(struct glx_context *, GLubyte *); 596 597extern void __glXSendLargeChunk(struct glx_context * gc, GLint requestNumber, 598 GLint totalRequests, 599 const GLvoid * data, GLint dataLen); 600 601extern void __glXSendLargeCommand(struct glx_context *, const GLvoid *, GLint, 602 const GLvoid *, GLint); 603 604/* Initialize the GLX extension for dpy */ 605extern struct glx_display *__glXInitialize(Display *); 606 607extern void __glXPreferEGL(int state); 608 609/************************************************************************/ 610 611extern int __glXDebug; 612 613/* This is per-thread storage in an MT environment */ 614#if defined( PTHREADS ) 615 616extern void __glXSetCurrentContext(struct glx_context * c); 617 618# if defined( GLX_USE_TLS ) 619 620extern __thread void *__glX_tls_Context 621 __attribute__ ((tls_model("initial-exec"))); 622 623# define __glXGetCurrentContext() __glX_tls_Context 624 625# else 626 627extern struct glx_context *__glXGetCurrentContext(void); 628 629# endif /* defined( GLX_USE_TLS ) */ 630 631#else 632 633extern struct glx_context *__glXcurrentContext; 634#define __glXGetCurrentContext() __glXcurrentContext 635#define __glXSetCurrentContext(gc) __glXcurrentContext = gc 636 637#endif /* defined( PTHREADS ) */ 638 639extern void __glXSetCurrentContextNull(void); 640 641 642/* 643** Global lock for all threads in this address space using the GLX 644** extension 645*/ 646#if defined( PTHREADS ) 647extern pthread_mutex_t __glXmutex; 648#define __glXLock() pthread_mutex_lock(&__glXmutex) 649#define __glXUnlock() pthread_mutex_unlock(&__glXmutex) 650#else 651#define __glXLock() 652#define __glXUnlock() 653#endif 654 655/* 656** Setup for a command. Initialize the extension for dpy if necessary. 657*/ 658extern CARD8 __glXSetupForCommand(Display * dpy); 659 660/************************************************************************/ 661 662/* 663** Data conversion and packing support. 664*/ 665 666extern const GLuint __glXDefaultPixelStore[9]; 667 668/* Send an image to the server using RenderLarge. */ 669extern void __glXSendLargeImage(struct glx_context * gc, GLint compsize, GLint dim, 670 GLint width, GLint height, GLint depth, 671 GLenum format, GLenum type, 672 const GLvoid * src, GLubyte * pc, 673 GLubyte * modes); 674 675/* Return the size, in bytes, of some pixel data */ 676extern GLint __glImageSize(GLint, GLint, GLint, GLenum, GLenum, GLenum); 677 678/* Return the number of elements per group of a specified format*/ 679extern GLint __glElementsPerGroup(GLenum format, GLenum type); 680 681/* Return the number of bytes per element, based on the element type (other 682** than GL_BITMAP). 683*/ 684extern GLint __glBytesPerElement(GLenum type); 685 686/* 687** Fill the transport buffer with the data from the users buffer, 688** applying some of the pixel store modes (unpack modes) to the data 689** first. As a side effect of this call, the "modes" field is 690** updated to contain the modes needed by the server to decode the 691** sent data. 692*/ 693extern void __glFillImage(struct glx_context *, GLint, GLint, GLint, GLint, GLenum, 694 GLenum, const GLvoid *, GLubyte *, GLubyte *); 695 696/* Copy map data with a stride into a packed buffer */ 697extern void __glFillMap1f(GLint, GLint, GLint, const GLfloat *, GLubyte *); 698extern void __glFillMap1d(GLint, GLint, GLint, const GLdouble *, GLubyte *); 699extern void __glFillMap2f(GLint, GLint, GLint, GLint, GLint, 700 const GLfloat *, GLfloat *); 701extern void __glFillMap2d(GLint, GLint, GLint, GLint, GLint, 702 const GLdouble *, GLdouble *); 703 704/* 705** Empty an image out of the reply buffer into the clients memory applying 706** the pack modes to pack back into the clients requested format. 707*/ 708extern void __glEmptyImage(struct glx_context *, GLint, GLint, GLint, GLint, GLenum, 709 GLenum, const GLubyte *, GLvoid *); 710 711 712/* 713** Allocate and Initialize Vertex Array client state, and free. 714*/ 715extern void __glXInitVertexArrayState(struct glx_context *); 716extern void __glXFreeVertexArrayState(struct glx_context *); 717 718/* 719** Inform the Server of the major and minor numbers and of the client 720** libraries extension string. 721*/ 722extern void __glXClientInfo(Display * dpy, int opcode); 723 724/************************************************************************/ 725 726/* 727** Declarations that should be in Xlib 728*/ 729#ifdef __GL_USE_OUR_PROTOTYPES 730extern void _XFlush(Display *); 731extern Status _XReply(Display *, xReply *, int, Bool); 732extern void _XRead(Display *, void *, long); 733extern void _XSend(Display *, const void *, long); 734#endif 735 736 737extern void __glXInitializeVisualConfigFromTags(struct glx_config * config, 738 int count, const INT32 * bp, 739 Bool tagged_only, 740 Bool fbconfig_style_tags); 741 742extern char *__glXQueryServerString(Display * dpy, int opcode, 743 CARD32 screen, CARD32 name); 744extern char *__glXGetString(Display * dpy, int opcode, 745 CARD32 screen, CARD32 name); 746 747extern char *__glXstrdup(const char *str); 748 749 750extern const char __glXGLClientVersion[]; 751extern const char __glXGLClientExtensions[]; 752 753/* Get the unadjusted system time */ 754extern int __glXGetUST(int64_t * ust); 755 756extern GLboolean __glXGetMscRateOML(Display * dpy, GLXDrawable drawable, 757 int32_t * numerator, 758 int32_t * denominator); 759 760#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) 761extern GLboolean 762__glxGetMscRate(__GLXDRIdrawable *glxDraw, 763 int32_t * numerator, int32_t * denominator); 764 765/* So that dri2.c:DRI2WireToEvent() can access 766 * glx_info->codes->first_event */ 767XExtDisplayInfo *__glXFindDisplay (Display *dpy); 768 769extern void 770GarbageCollectDRIDrawables(struct glx_screen *psc); 771 772extern __GLXDRIdrawable * 773GetGLXDRIDrawable(Display *dpy, GLXDrawable drawable); 774 775#endif 776 777extern struct glx_context dummyContext; 778 779extern struct glx_screen * 780indirect_create_screen(int screen, struct glx_display * priv); 781extern struct glx_context * 782indirect_create_context(struct glx_screen *psc, 783 struct glx_config *mode, 784 struct glx_context *shareList, int renderType); 785 786#endif /* !__GLX_client_h__ */ 787