glxclient.h revision 037755122e9011c768e5caa4d4cb83aba783d3e9
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(Font font, int first, int count, int listbase); 99 100#endif 101 102#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) 103 104#include <GL/internal/dri_interface.h> 105 106/** 107 * Display dependent methods. This structure is initialized during the 108 * \c driCreateDisplay call. 109 */ 110typedef struct __GLXDRIdisplayRec __GLXDRIdisplay; 111typedef struct __GLXDRIscreenRec __GLXDRIscreen; 112typedef struct __GLXDRIdrawableRec __GLXDRIdrawable; 113typedef struct __GLXDRIcontextRec __GLXDRIcontext; 114 115#include "glxextensions.h" 116 117struct __GLXDRIdisplayRec 118{ 119 /** 120 * Method to destroy the private DRI display data. 121 */ 122 void (*destroyDisplay) (__GLXDRIdisplay * display); 123 124 __GLXscreenConfigs *(*createScreen)(int screen, __GLXdisplayPrivate * priv); 125}; 126 127struct __GLXDRIscreenRec { 128 129 void (*destroyScreen)(__GLXscreenConfigs *psc); 130 131 __GLXDRIcontext *(*createContext)(__GLXscreenConfigs *psc, 132 const __GLcontextModes *mode, 133 GLXContext gc, 134 GLXContext shareList, int renderType); 135 136 __GLXDRIdrawable *(*createDrawable)(__GLXscreenConfigs *psc, 137 XID drawable, 138 GLXDrawable glxDrawable, 139 const __GLcontextModes *modes); 140 141 int64_t (*swapBuffers)(__GLXDRIdrawable *pdraw, int64_t target_msc, 142 int64_t divisor, int64_t remainder); 143 void (*copySubBuffer)(__GLXDRIdrawable *pdraw, 144 int x, int y, int width, int height); 145 void (*waitX)(__GLXDRIdrawable *pdraw); 146 void (*waitGL)(__GLXDRIdrawable *pdraw); 147 int (*getDrawableMSC)(__GLXscreenConfigs *psc, __GLXDRIdrawable *pdraw, 148 int64_t *ust, int64_t *msc, int64_t *sbc); 149 int (*waitForMSC)(__GLXDRIdrawable *pdraw, int64_t target_msc, 150 int64_t divisor, int64_t remainder, int64_t *ust, 151 int64_t *msc, int64_t *sbc); 152 int (*waitForSBC)(__GLXDRIdrawable *pdraw, int64_t target_sbc, int64_t *ust, 153 int64_t *msc, int64_t *sbc); 154 int (*setSwapInterval)(__GLXDRIdrawable *pdraw, int interval); 155 int (*getSwapInterval)(__GLXDRIdrawable *pdraw); 156}; 157 158struct __GLXDRIcontextRec 159{ 160 void (*destroyContext) (__GLXDRIcontext * context, 161 __GLXscreenConfigs * psc, Display * dpy); 162 Bool(*bindContext) (__GLXDRIcontext * context, __GLXDRIdrawable * pdraw, 163 __GLXDRIdrawable * pread); 164 165 void (*unbindContext) (__GLXDRIcontext * context); 166}; 167 168struct __GLXDRIdrawableRec 169{ 170 void (*destroyDrawable) (__GLXDRIdrawable * drawable); 171 172 XID xDrawable; 173 XID drawable; 174 __GLXscreenConfigs *psc; 175 GLenum textureTarget; 176 GLenum textureFormat; /* EXT_texture_from_pixmap support */ 177 unsigned long eventMask; 178}; 179 180/* 181** Function to create and DRI display data and initialize the display 182** dependent methods. 183*/ 184extern __GLXDRIdisplay *driswCreateDisplay(Display * dpy); 185extern __GLXDRIdisplay *driCreateDisplay(Display * dpy); 186extern __GLXDRIdisplay *dri2CreateDisplay(Display * dpy); 187extern void dri2InvalidateBuffers(Display *dpy, XID drawable); 188 189 190/* 191** Functions to obtain driver configuration information from a direct 192** rendering client application 193*/ 194extern const char *glXGetScreenDriver(Display * dpy, int scrNum); 195 196extern const char *glXGetDriverConfig(const char *driverName); 197 198#endif 199 200/************************************************************************/ 201 202#define __GL_CLIENT_ATTRIB_STACK_DEPTH 16 203 204typedef struct __GLXpixelStoreModeRec 205{ 206 GLboolean swapEndian; 207 GLboolean lsbFirst; 208 GLuint rowLength; 209 GLuint imageHeight; 210 GLuint imageDepth; 211 GLuint skipRows; 212 GLuint skipPixels; 213 GLuint skipImages; 214 GLuint alignment; 215} __GLXpixelStoreMode; 216 217 218typedef struct __GLXattributeRec 219{ 220 GLuint mask; 221 222 /** 223 * Pixel storage state. Most of the pixel store mode state is kept 224 * here and used by the client code to manage the packing and 225 * unpacking of data sent to/received from the server. 226 */ 227 __GLXpixelStoreMode storePack, storeUnpack; 228 229 /** 230 * Is EXT_vertex_array / GL 1.1 DrawArrays protocol specifically 231 * disabled? 232 */ 233 GLboolean NoDrawArraysProtocol; 234 235 /** 236 * Vertex Array storage state. The vertex array component 237 * state is stored here and is used to manage the packing of 238 * DrawArrays data sent to the server. 239 */ 240 struct array_state_vector *array_state; 241} __GLXattribute; 242 243typedef struct __GLXattributeMachineRec 244{ 245 __GLXattribute *stack[__GL_CLIENT_ATTRIB_STACK_DEPTH]; 246 __GLXattribute **stackPointer; 247} __GLXattributeMachine; 248 249struct glx_context_vtable { 250 void (*bind_tex_image)(Display * dpy, 251 GLXDrawable drawable, 252 int buffer, const int *attrib_list); 253 void (*release_tex_image)(Display * dpy, GLXDrawable drawable, int buffer); 254 255}; 256 257/** 258 * GLX state that needs to be kept on the client. One of these records 259 * exist for each context that has been made current by this client. 260 */ 261struct __GLXcontextRec 262{ 263 /** 264 * \name Drawing command buffer. 265 * 266 * Drawing commands are packed into this buffer before being sent as a 267 * single GLX protocol request. The buffer is sent when it overflows or 268 * is flushed by \c __glXFlushRenderBuffer. \c pc is the next location 269 * in the buffer to be filled. \c limit is described above in the buffer 270 * slop discussion. 271 * 272 * Commands that require large amounts of data to be transfered will 273 * also use this buffer to hold a header that describes the large 274 * command. 275 * 276 * These must be the first 6 fields since they are static initialized 277 * in the dummy context in glxext.c 278 */ 279 /*@{ */ 280 GLubyte *buf; 281 GLubyte *pc; 282 GLubyte *limit; 283 GLubyte *bufEnd; 284 GLint bufSize; 285 /*@} */ 286 287 /** 288 * The XID of this rendering context. When the context is created a 289 * new XID is allocated. This is set to None when the context is 290 * destroyed but is still current to some thread. In this case the 291 * context will be freed on next MakeCurrent. 292 */ 293 XID xid; 294 295 /** 296 * The XID of the \c shareList context. 297 */ 298 XID share_xid; 299 300 /** 301 * Screen number. 302 */ 303 GLint screen; 304 __GLXscreenConfigs *psc; 305 306 /** 307 * \c GL_TRUE if the context was created with ImportContext, which 308 * means the server-side context was created by another X client. 309 */ 310 GLboolean imported; 311 312 /** 313 * The context tag returned by MakeCurrent when this context is made 314 * current. This tag is used to identify the context that a thread has 315 * current so that proper server context management can be done. It is 316 * used for all context specific commands (i.e., \c Render, \c RenderLarge, 317 * \c WaitX, \c WaitGL, \c UseXFont, and \c MakeCurrent (for the old 318 * context)). 319 */ 320 GLXContextTag currentContextTag; 321 322 /** 323 * \name Rendering mode 324 * 325 * The rendering mode is kept on the client as well as the server. 326 * When \c glRenderMode is called, the buffer associated with the 327 * previous rendering mode (feedback or select) is filled. 328 */ 329 /*@{ */ 330 GLenum renderMode; 331 GLfloat *feedbackBuf; 332 GLuint *selectBuf; 333 /*@} */ 334 335 /** 336 * This is \c GL_TRUE if the pixel unpack modes are such that an image 337 * can be unpacked from the clients memory by just copying. It may 338 * still be true that the server will have to do some work. This 339 * just promises that a straight copy will fetch the correct bytes. 340 */ 341 GLboolean fastImageUnpack; 342 343 /** 344 * Fill newImage with the unpacked form of \c oldImage getting it 345 * ready for transport to the server. 346 */ 347 void (*fillImage) (__GLXcontext *, GLint, GLint, GLint, GLint, GLenum, 348 GLenum, const GLvoid *, GLubyte *, GLubyte *); 349 350 /** 351 * Client side attribs. 352 */ 353 __GLXattributeMachine attributes; 354 355 /** 356 * Client side error code. This is set when client side gl API 357 * routines need to set an error because of a bad enumerant or 358 * running out of memory, etc. 359 */ 360 GLenum error; 361 362 /** 363 * Whether this context does direct rendering. 364 */ 365 Bool isDirect; 366 367 /** 368 * \c dpy of current display for this context. Will be \c NULL if not 369 * current to any display, or if this is the "dummy context". 370 */ 371 Display *currentDpy; 372 373 /** 374 * The current drawable for this context. Will be None if this 375 * context is not current to any drawable. currentReadable is below. 376 */ 377 GLXDrawable currentDrawable; 378 379 /** 380 * \name GL Constant Strings 381 * 382 * Constant strings that describe the server implementation 383 * These pertain to GL attributes, not to be confused with 384 * GLX versioning attributes. 385 */ 386 /*@{ */ 387 GLubyte *vendor; 388 GLubyte *renderer; 389 GLubyte *version; 390 GLubyte *extensions; 391 /*@} */ 392 393 /** 394 * Record the dpy this context was created on for later freeing 395 */ 396 Display *createDpy; 397 398 /** 399 * Maximum small render command size. This is the smaller of 64k and 400 * the size of the above buffer. 401 */ 402 GLint maxSmallRenderCommandSize; 403 404 /** 405 * Major opcode for the extension. Copied here so a lookup isn't 406 * needed. 407 */ 408 GLint majorOpcode; 409 410 /** 411 * Pointer to the mode used to create this context. 412 */ 413 const __GLcontextModes *mode; 414 415#ifdef GLX_DIRECT_RENDERING 416#ifdef GLX_USE_APPLEGL 417 void *driContext; 418 Bool do_destroy; 419#else 420 __GLXDRIcontext *driContext; 421 __DRIcontext *__driContext; 422#endif 423#endif 424 425 /** 426 * The current read-drawable for this context. Will be None if this 427 * context is not current to any drawable. 428 * 429 * \since Internal API version 20030606. 430 */ 431 GLXDrawable currentReadable; 432 433 /** 434 * Pointer to client-state data that is private to libGL. This is only 435 * used for indirect rendering contexts. 436 * 437 * No internal API version change was made for this change. Client-side 438 * drivers should NEVER use this data or even care that it exists. 439 */ 440 void *client_state_private; 441 442 /** 443 * Stored value for \c glXQueryContext attribute \c GLX_RENDER_TYPE. 444 */ 445 int renderType; 446 447 /** 448 * \name Raw server GL version 449 * 450 * True core GL version supported by the server. This is the raw value 451 * returned by the server, and it may not reflect what is actually 452 * supported (or reported) by the client-side library. 453 */ 454 /*@{ */ 455 int server_major; /**< Major version number. */ 456 int server_minor; /**< Minor version number. */ 457 /*@} */ 458 459 /** 460 * Thread ID we're currently current in. Zero if none. 461 */ 462 unsigned long thread_id; 463 464 char gl_extension_bits[__GL_EXT_BYTES]; 465 466 const struct glx_context_vtable *vtable; 467}; 468 469#define __glXSetError(gc,code) \ 470 if (!(gc)->error) { \ 471 (gc)->error = code; \ 472 } 473 474extern void __glFreeAttributeState(__GLXcontext *); 475 476/************************************************************************/ 477 478/** 479 * The size of the largest drawing command known to the implementation 480 * that will use the GLXRender GLX command. In this case it is 481 * \c glPolygonStipple. 482 */ 483#define __GLX_MAX_SMALL_RENDER_CMD_SIZE 156 484 485/** 486 * To keep the implementation fast, the code uses a "limit" pointer 487 * to determine when the drawing command buffer is too full to hold 488 * another fixed size command. This constant defines the amount of 489 * space that must always be available in the drawing command buffer 490 * at all times for the implementation to work. It is important that 491 * the number be just large enough, but not so large as to reduce the 492 * efficacy of the buffer. The "+32" is just to keep the code working 493 * in case somebody counts wrong. 494 */ 495#define __GLX_BUFFER_LIMIT_SIZE (__GLX_MAX_SMALL_RENDER_CMD_SIZE + 32) 496 497/** 498 * This implementation uses a smaller threshold for switching 499 * to the RenderLarge protocol than the protcol requires so that 500 * large copies don't occur. 501 */ 502#define __GLX_RENDER_CMD_SIZE_LIMIT 4096 503 504/** 505 * One of these records exists per screen of the display. It contains 506 * a pointer to the config data for that screen (if the screen supports GL). 507 */ 508struct __GLXscreenConfigsRec 509{ 510 /** 511 * GLX extension string reported by the X-server. 512 */ 513 const char *serverGLXexts; 514 515 /** 516 * GLX extension string to be reported to applications. This is the 517 * set of extensions that the application can actually use. 518 */ 519 char *effectiveGLXexts; 520 521 /** 522 * Context vtable to use for direct contexts on this screen 523 */ 524 const struct glx_context_vtable *direct_context_vtable; 525 526 __GLXdisplayPrivate *display; 527 528#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) 529 /** 530 * Per screen direct rendering interface functions and data. 531 */ 532 __glxHashTable *drawHash; 533 Display *dpy; 534 int scr; 535 536 __GLXDRIscreen *driScreen; 537 538 const __DRIconfig **driver_configs; 539 540#ifdef __DRI_COPY_SUB_BUFFER 541 const __DRIcopySubBufferExtension *driCopySubBuffer; 542#endif 543 544#endif 545 546 /** 547 * Linked list of glx visuals and fbconfigs for this screen. 548 */ 549 __GLcontextModes *visuals, *configs; 550 551 /** 552 * Per-screen dynamic GLX extension tracking. The \c direct_support 553 * field only contains enough bits for 64 extensions. Should libGL 554 * ever need to track more than 64 GLX extensions, we can safely grow 555 * this field. The \c __GLXscreenConfigs structure is not used outside 556 * libGL. 557 */ 558 /*@{ */ 559 unsigned char direct_support[8]; 560 GLboolean ext_list_first_time; 561 /*@} */ 562 563}; 564 565/** 566 * Per display private data. One of these records exists for each display 567 * that is using the OpenGL (GLX) extension. 568 */ 569struct __GLXdisplayPrivateRec 570{ 571 /** 572 * Back pointer to the display 573 */ 574 Display *dpy; 575 576 /** 577 * The \c majorOpcode is common to all connections to the same server. 578 * It is also copied into the context structure. 579 */ 580 int majorOpcode; 581 582 /** 583 * \name Server Version 584 * 585 * Major and minor version returned by the server during initialization. 586 */ 587 /*@{ */ 588 int majorVersion, minorVersion; 589 /*@} */ 590 591 /** 592 * \name Storage for the servers GLX vendor and versions strings. 593 * 594 * These are the same for all screens on this display. These fields will 595 * be filled in on demand. 596 */ 597 /*@{ */ 598 const char *serverGLXvendor; 599 const char *serverGLXversion; 600 /*@} */ 601 602 /** 603 * Configurations of visuals for all screens on this display. 604 * Also, per screen data which now includes the server \c GLX_EXTENSION 605 * string. 606 */ 607 __GLXscreenConfigs **screenConfigs; 608 609#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) 610 /** 611 * Per display direct rendering interface functions and data. 612 */ 613 __GLXDRIdisplay *driswDisplay; 614 __GLXDRIdisplay *driDisplay; 615 __GLXDRIdisplay *dri2Display; 616#endif 617}; 618 619extern int 620glx_screen_init(__GLXscreenConfigs *psc, 621 int screen, __GLXdisplayPrivate * priv); 622 623extern __GLXDRIdrawable * 624dri2GetGlxDrawableFromXDrawableId(Display *dpy, XID id); 625 626extern GLubyte *__glXFlushRenderBuffer(__GLXcontext *, GLubyte *); 627 628extern void __glXSendLargeChunk(__GLXcontext * gc, GLint requestNumber, 629 GLint totalRequests, 630 const GLvoid * data, GLint dataLen); 631 632extern void __glXSendLargeCommand(__GLXcontext *, const GLvoid *, GLint, 633 const GLvoid *, GLint); 634 635/* Initialize the GLX extension for dpy */ 636extern __GLXdisplayPrivate *__glXInitialize(Display *); 637 638extern void __glXPreferEGL(int state); 639 640/************************************************************************/ 641 642extern int __glXDebug; 643 644/* This is per-thread storage in an MT environment */ 645#if defined( PTHREADS ) 646 647extern void __glXSetCurrentContext(__GLXcontext * c); 648 649# if defined( GLX_USE_TLS ) 650 651extern __thread void *__glX_tls_Context 652 __attribute__ ((tls_model("initial-exec"))); 653 654# define __glXGetCurrentContext() __glX_tls_Context 655 656# else 657 658extern __GLXcontext *__glXGetCurrentContext(void); 659 660# endif /* defined( GLX_USE_TLS ) */ 661 662#else 663 664extern __GLXcontext *__glXcurrentContext; 665#define __glXGetCurrentContext() __glXcurrentContext 666#define __glXSetCurrentContext(gc) __glXcurrentContext = gc 667 668#endif /* defined( PTHREADS ) */ 669 670extern void __glXSetCurrentContextNull(void); 671 672extern void __glXFreeContext(__GLXcontext *); 673 674 675/* 676** Global lock for all threads in this address space using the GLX 677** extension 678*/ 679#if defined( PTHREADS ) 680extern pthread_mutex_t __glXmutex; 681#define __glXLock() pthread_mutex_lock(&__glXmutex) 682#define __glXUnlock() pthread_mutex_unlock(&__glXmutex) 683#else 684#define __glXLock() 685#define __glXUnlock() 686#endif 687 688/* 689** Setup for a command. Initialize the extension for dpy if necessary. 690*/ 691extern CARD8 __glXSetupForCommand(Display * dpy); 692 693/************************************************************************/ 694 695/* 696** Data conversion and packing support. 697*/ 698 699extern const GLuint __glXDefaultPixelStore[9]; 700 701/* Send an image to the server using RenderLarge. */ 702extern void __glXSendLargeImage(__GLXcontext * gc, GLint compsize, GLint dim, 703 GLint width, GLint height, GLint depth, 704 GLenum format, GLenum type, 705 const GLvoid * src, GLubyte * pc, 706 GLubyte * modes); 707 708/* Return the size, in bytes, of some pixel data */ 709extern GLint __glImageSize(GLint, GLint, GLint, GLenum, GLenum, GLenum); 710 711/* Return the number of elements per group of a specified format*/ 712extern GLint __glElementsPerGroup(GLenum format, GLenum type); 713 714/* Return the number of bytes per element, based on the element type (other 715** than GL_BITMAP). 716*/ 717extern GLint __glBytesPerElement(GLenum type); 718 719/* 720** Fill the transport buffer with the data from the users buffer, 721** applying some of the pixel store modes (unpack modes) to the data 722** first. As a side effect of this call, the "modes" field is 723** updated to contain the modes needed by the server to decode the 724** sent data. 725*/ 726extern void __glFillImage(__GLXcontext *, GLint, GLint, GLint, GLint, GLenum, 727 GLenum, const GLvoid *, GLubyte *, GLubyte *); 728 729/* Copy map data with a stride into a packed buffer */ 730extern void __glFillMap1f(GLint, GLint, GLint, const GLfloat *, GLubyte *); 731extern void __glFillMap1d(GLint, GLint, GLint, const GLdouble *, GLubyte *); 732extern void __glFillMap2f(GLint, GLint, GLint, GLint, GLint, 733 const GLfloat *, GLfloat *); 734extern void __glFillMap2d(GLint, GLint, GLint, GLint, GLint, 735 const GLdouble *, GLdouble *); 736 737/* 738** Empty an image out of the reply buffer into the clients memory applying 739** the pack modes to pack back into the clients requested format. 740*/ 741extern void __glEmptyImage(__GLXcontext *, GLint, GLint, GLint, GLint, GLenum, 742 GLenum, const GLubyte *, GLvoid *); 743 744 745/* 746** Allocate and Initialize Vertex Array client state, and free. 747*/ 748extern void __glXInitVertexArrayState(__GLXcontext *); 749extern void __glXFreeVertexArrayState(__GLXcontext *); 750 751/* 752** Inform the Server of the major and minor numbers and of the client 753** libraries extension string. 754*/ 755extern void __glXClientInfo(Display * dpy, int opcode); 756 757/************************************************************************/ 758 759/* 760** Declarations that should be in Xlib 761*/ 762#ifdef __GL_USE_OUR_PROTOTYPES 763extern void _XFlush(Display *); 764extern Status _XReply(Display *, xReply *, int, Bool); 765extern void _XRead(Display *, void *, long); 766extern void _XSend(Display *, const void *, long); 767#endif 768 769 770extern void __glXInitializeVisualConfigFromTags(__GLcontextModes * config, 771 int count, const INT32 * bp, 772 Bool tagged_only, 773 Bool fbconfig_style_tags); 774 775extern char *__glXQueryServerString(Display * dpy, int opcode, 776 CARD32 screen, CARD32 name); 777extern char *__glXGetString(Display * dpy, int opcode, 778 CARD32 screen, CARD32 name); 779 780extern char *__glXstrdup(const char *str); 781 782 783extern const char __glXGLClientVersion[]; 784extern const char __glXGLClientExtensions[]; 785 786/* Get the unadjusted system time */ 787extern int __glXGetUST(int64_t * ust); 788 789extern GLboolean __glXGetMscRateOML(Display * dpy, GLXDrawable drawable, 790 int32_t * numerator, 791 int32_t * denominator); 792 793#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) 794GLboolean 795__driGetMscRateOML(__DRIdrawable * draw, 796 int32_t * numerator, int32_t * denominator, void *private); 797 798/* So that dri2.c:DRI2WireToEvent() can access 799 * glx_info->codes->first_event */ 800XExtDisplayInfo *__glXFindDisplay (Display *dpy); 801 802extern __GLXDRIdrawable * 803GetGLXDRIDrawable(Display *dpy, GLXDrawable drawable, int *const scrn_num); 804 805#endif 806 807#endif /* !__GLX_client_h__ */ 808