glxclient.h revision 5f1f229f8da255ca9b390da1757ad781978cf619
1ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com/* 2ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com** License Applicability. Except to the extent portions of this file are 3ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com** made subject to an alternative license as permitted in the SGI Free 4ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com** Software License B, Version 1.1 (the "License"), the contents of this 5ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com** file are subject only to the provisions of the License. You may not use 6ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com** this file except in compliance with the License. You may obtain a copy 7ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 8ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: 98a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com** 108a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com** http://oss.sgi.com/projects/FreeB 118a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com** 128a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com** Note that, as provided in the License, the Software is distributed on an 138a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS 148a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND 158a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A 168a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. 178a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com** 188a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com** Original Code. The Original Code is: OpenGL Sample Implementation, 198a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, 208a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. 218a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com** Copyright in any portions created by third parties is as indicated 228a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com** elsewhere herein. All Rights Reserved. 238a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com** 248a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com** Additional Notice Provisions: The application programming interfaces 258a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com** established by SGI in conjunction with the Original Code are The 268a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released 278a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version 288a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X 298a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com** Window System(R) (Version 1.3), released October 19, 1998. This software 308a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com** was created using the OpenGL(R) version 1.2.1 Sample Implementation 318a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com** published by SGI, but has not been independently verified as being 328a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com** compliant with the OpenGL(R) version 1.2.1 Specification. 338a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com*/ 348a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com/* $XFree86: xc/lib/GL/glx/glxclient.h,v 1.21 2004/02/09 23:46:31 alanh Exp $ */ 35d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 368a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com/** 378a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com * \file glxclient.h 388a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com * Direct rendering support added by Precision Insight, Inc. 398a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com * 408a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com * \author Kevin E. Martin <kevin@precisioninsight.com> 418a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com */ 428a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 438a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#ifndef _GLX_client_h_ 448a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#define _GLX_client_h_ 458a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#define NEED_REPLIES 468a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#define NEED_EVENTS 478a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include <X11/Xproto.h> 488a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include <X11/Xlibint.h> 498a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#define GLX_GLXEXT_PROTOTYPES 508a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include <GL/glx.h> 51d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com#include <GL/glxext.h> 528a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include <string.h> 538a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include <stdlib.h> 548a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include <stdio.h> 558a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#ifdef WIN32 568a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include <stdint.h> 578a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#endif 588a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "GL/glxint.h" 598a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "GL/glxproto.h" 608a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "GL/internal/glcore.h" 618a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "glapitable.h" 628a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#ifdef XTHREADS 638a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "Xthreads.h" 648a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#endif 6592f93264e760b74cc706d01b2d0fcfaa3d857f51commit-bot@chromium.org#ifdef GLX_BUILT_IN_XMESA 668a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "realglx.h" /* just silences prototype warnings */ 678a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#endif 688a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 698a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#define GLX_MAJOR_VERSION 1 /* current version numbers */ 708a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#define GLX_MINOR_VERSION 4 718a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 728a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#define __GLX_MAX_TEXTURE_UNITS 32 738a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 748a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comtypedef struct __GLXcontextRec __GLXcontext; 758a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comtypedef struct __GLXdisplayPrivateRec __GLXdisplayPrivate; 768a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comtypedef struct _glapi_table __GLapi; 77a7ed3cc6371e50a5beb3750c475fe23665dafa7dtomhudson@google.com 788a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com/************************************************************************/ 79a7ed3cc6371e50a5beb3750c475fe23665dafa7dtomhudson@google.com 808a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#ifdef GLX_DIRECT_RENDERING 818a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 828a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include <GL/internal/dri_interface.h> 838a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 848a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comtypedef void *(*CreateScreenFunc)(Display *dpy, int scrn, __DRIscreen *psc, 858a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int numConfigs, __GLXvisualConfig *config); 868a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 878a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comtypedef void *(*CreateNewScreenFunc)(Display *dpy, int scrn, __DRIscreen *psc, 88 const __GLcontextModes * modes, const __DRIversion * ddx_version, 89 const __DRIversion * dri_version, const __DRIversion * drm_version, 90 const __DRIframebuffer * frame_buffer, void * pSAREA, 91 int fd, int internal_api_version, __GLcontextModes ** driver_modes); 92 93 94/** 95 * Display dependent methods. This structure is initialized during the 96 * \c driCreateDisplay call. 97 */ 98struct __DRIdisplayRec { 99 /** 100 * Method to destroy the private DRI display data. 101 */ 102 void (*destroyDisplay)(Display *dpy, void *displayPrivate); 103 104 /** 105 * Methods to create the private DRI screen data and initialize the 106 * screen dependent methods. 107 * This is an array [indexed by screen number] of function pointers. 108 * 109 * \deprecated This array of function pointers has been replaced by 110 * \c __DRIdisplayRec::createNewScreen. 111 * \sa __DRIdisplayRec::createNewScreen 112 */ 113 CreateScreenFunc * createScreen; 114 115 /** 116 * Opaque pointer to private per display direct rendering data. 117 * \c NULL if direct rendering is not supported on this display. 118 */ 119 struct __DRIdisplayPrivateRec *private; 120 121 /** 122 * Array of pointers to methods to create and initialize the private DRI 123 * screen data. 124 * 125 * \sa __DRIdisplayRec::createScreen 126 */ 127 CreateNewScreenFunc * createNewScreen; 128}; 129 130 131/* 132** We keep a linked list of these structures, one per DRI device driver. 133*/ 134struct __DRIdriverRec { 135 const char *name; 136 void *handle; 137 CreateScreenFunc createScreenFunc; 138 CreateNewScreenFunc createNewScreenFunc; 139 struct __DRIdriverRec *next; 140}; 141 142/* 143** Function to create and DRI display data and initialize the display 144** dependent methods. 145*/ 146extern void *driCreateDisplay(Display *dpy, __DRIdisplay *pdisp); 147 148extern __DRIdriver *driGetDriver(Display *dpy, int scrNum); 149 150extern void DRI_glXUseXFont( Font font, int first, int count, int listbase ); 151 152/* 153** Functions to obtain driver configuration information from a direct 154** rendering client application 155*/ 156extern const char *glXGetScreenDriver (Display *dpy, int scrNum); 157 158extern const char *glXGetDriverConfig (const char *driverName); 159 160#endif 161 162/************************************************************************/ 163 164#define __GL_CLIENT_ATTRIB_STACK_DEPTH 16 165 166typedef struct __GLXpixelStoreModeRec { 167 GLboolean swapEndian; 168 GLboolean lsbFirst; 169 GLuint rowLength; 170 GLuint imageHeight; 171 GLuint imageDepth; 172 GLuint skipRows; 173 GLuint skipPixels; 174 GLuint skipImages; 175 GLuint alignment; 176} __GLXpixelStoreMode; 177 178/* The next 3 structures are deprecated. Client state is no longer tracked 179 * using them. They only remain to maintain the layout / structure offset of 180 * __GLXcontextRec. In XFree86 5.0 they will be removed altogether. 181 */ 182 183typedef struct __GLXvertexArrayPointerStateRecDEPRECATED { 184 GLboolean enable; 185 void (*proc)(const void *); 186 const GLubyte *ptr; 187 GLsizei skip; 188 GLint size; 189 GLenum type; 190 GLsizei stride; 191} __GLXvertexArrayPointerStateDEPRECATED; 192 193typedef struct __GLXvertArrayStateRecDEPRECATED { 194 __GLXvertexArrayPointerStateDEPRECATED vertex; 195 __GLXvertexArrayPointerStateDEPRECATED normal; 196 __GLXvertexArrayPointerStateDEPRECATED color; 197 __GLXvertexArrayPointerStateDEPRECATED index; 198 __GLXvertexArrayPointerStateDEPRECATED texCoord[__GLX_MAX_TEXTURE_UNITS]; 199 __GLXvertexArrayPointerStateDEPRECATED edgeFlag; 200 GLint maxElementsVertices; 201 GLint maxElementsIndices; 202 GLint activeTexture; 203} __GLXvertArrayStateDEPRECATED; 204 205typedef struct __GLXattributeRecDEPRECATED { 206 GLuint mask; 207 208 /* 209 ** Pixel storage state. Most of the pixel store mode state is kept 210 ** here and used by the client code to manage the packing and 211 ** unpacking of data sent to/received from the server. 212 */ 213 __GLXpixelStoreMode storePack, storeUnpack; 214 215 /* 216 ** Vertex Array storage state. The vertex array component 217 ** state is stored here and is used to manage the packing of 218 ** DrawArrays data sent to the server. 219 */ 220 __GLXvertArrayStateDEPRECATED vertArray; 221} __GLXattributeDEPRECATED; 222 223typedef struct __GLXvertexArrayPointerStateRec { 224 void (*proc)(const void *); 225 void (*mtex_proc)(GLenum, const void *); 226 const GLubyte *ptr; 227 GLsizei skip; 228 GLint size; 229 GLenum type; 230 GLsizei stride; 231} __GLXvertexArrayPointerState; 232 233/** 234 * Define which entries of \c __GLXvertArrayState::arrays match which 235 * vertex arrays in the client-state vector. These are only the one-of 236 * arrays. See the \c __GLXvertArrayState::arrays documentation for more 237 * details. 238 * 239 * \sa __GLXvertArrayState 240 */ 241enum { 242 edgeFlag_ARRAY, /**< \c GL_EDGE_FLAG_ARRAY */ 243 index_ARRAY, /**< \c GL_INDEX_ARRAY */ 244 fogCoord_ARRAY, /**< \c GL_FOG_COORD_ARRAY */ 245 secondaryColor_ARRAY, /**< \c GL_SECONDARY_COLOR_ARRAY */ 246 color_ARRAY, /**< \c GL_COLOR_ARRAY */ 247 normal_ARRAY, /**< \c GL_NORMAL_ARRAY */ 248 249 /** 250 * \c GL_VERTEX_ARRAY \b must be last! All of the code for emitting arrays 251 * and array elements is written based on the assumption that the vertex 252 * array is last. 253 */ 254 vertex_ARRAY, 255 256 __GLX_MAX_ARRAYS /**< Place holder entry. */ 257}; 258 259#define ENABLE_ARRAY(state,a) \ 260 do { (state)->vertArray.enables |= (1U << (a ## _ARRAY)); } while( 0 ) 261#define DISABLE_ARRAY(state,a) \ 262 do { (state)->vertArray.enables &= ~(1U << (a ## _ARRAY)); } while( 0 ) 263#define IS_ARRAY_ENABLED_BY_INDEX(state, i) \ 264 (((state)->vertArray.enables & (1U << (i))) != 0) 265#define IS_ARRAY_ENABLED(state, a) \ 266 IS_ARRAY_ENABLED_BY_INDEX(state, a ## _ARRAY) 267 268#define ENABLE_TEXARRAY(state,a) \ 269 do { (state)->vertArray.texture_enables |= (1U << a); } while( 0 ) 270#define DISABLE_TEXARRAY(state,a) \ 271 do { (state)->vertArray.texture_enables &= ~(1U << a); } while( 0 ) 272#define IS_TEXARRAY_ENABLED(state, a) \ 273 (((state)->vertArray.texture_enables & (1U << a)) != 0) 274 275/** 276 * Client-side vertex array state. 277 */ 278typedef struct __GLXvertArrayStateRec { 279 /** 280 * Which client-side arrays are enabled? These are the flag bits for 281 * all of the non-texture coordinate arrays. 282 */ 283 GLuint enables; 284 285 /** 286 * Which of the texture coordinate arrays are enabled? 287 */ 288 GLuint texture_enables; 289 290 /** 291 * State for "one-of" arrays. These are the arrays, such as 292 * GL_COLOR_ARRAY or GL_FOG_COORD_ARRAY for which there is only one 293 * array. There are also "many-of" arrays, such as 294 * GL_TEXTURE_COORD_ARRAY. 295 */ 296 __GLXvertexArrayPointerState arrays[__GLX_MAX_ARRAYS]; 297 298 __GLXvertexArrayPointerState texCoord[__GLX_MAX_TEXTURE_UNITS]; 299 300 GLint maxElementsVertices; 301 GLint maxElementsIndices; 302 GLint activeTexture; 303} __GLXvertArrayState; 304 305typedef struct __GLXattributeRec { 306 GLuint mask; 307 308 /* 309 ** Pixel storage state. Most of the pixel store mode state is kept 310 ** here and used by the client code to manage the packing and 311 ** unpacking of data sent to/received from the server. 312 */ 313 __GLXpixelStoreMode storePack, storeUnpack; 314 315 /* 316 ** Vertex Array storage state. The vertex array component 317 ** state is stored here and is used to manage the packing of 318 ** DrawArrays data sent to the server. 319 */ 320 __GLXvertArrayState vertArray; 321 322 /** 323 * Is EXT_vertex_array / GL 1.1 DrawArrays protocol specifically 324 * disabled? 325 */ 326 GLboolean NoDrawArraysProtocol; 327} __GLXattribute; 328 329typedef struct __GLXattributeMachineRec { 330 __GLXattribute *stack[__GL_CLIENT_ATTRIB_STACK_DEPTH]; 331 __GLXattribute **stackPointer; 332} __GLXattributeMachine; 333 334/** 335 * GLX state that needs to be kept on the client. One of these records 336 * exist for each context that has been made current by this client. 337 */ 338struct __GLXcontextRec { 339 /** 340 * \name Drawing command buffer. 341 * 342 * Drawing commands are packed into this buffer before being sent as a 343 * single GLX protocol request. The buffer is sent when it overflows or 344 * is flushed by \c __glXFlushRenderBuffer. \c pc is the next location 345 * in the buffer to be filled. \c limit is described above in the buffer 346 * slop discussion. 347 * 348 * Commands that require large amounts of data to be transfered will 349 * also use this buffer to hold a header that describes the large 350 * command. 351 * 352 * These must be the first 6 fields since they are static initialized 353 * in the dummy context in glxext.c 354 */ 355 /*@{*/ 356 GLubyte *buf; 357 GLubyte *pc; 358 GLubyte *limit; 359 GLubyte *bufEnd; 360 GLint bufSize; 361 /*@}*/ 362 363 /** 364 * The XID of this rendering context. When the context is created a 365 * new XID is allocated. This is set to None when the context is 366 * destroyed but is still current to some thread. In this case the 367 * context will be freed on next MakeCurrent. 368 */ 369 XID xid; 370 371 /** 372 * The XID of the \c shareList context. 373 */ 374 XID share_xid; 375 376 /** 377 * Visual id. 378 * 379 * \deprecated 380 * This filed has been largely been replaced by the \c mode field, but 381 * the work is not quite done. 382 */ 383 VisualID vid; 384 385 /** 386 * Screen number. 387 */ 388 GLint screen; 389 390 /** 391 * \c GL_TRUE if the context was created with ImportContext, which 392 * means the server-side context was created by another X client. 393 */ 394 GLboolean imported; 395 396 /** 397 * The context tag returned by MakeCurrent when this context is made 398 * current. This tag is used to identify the context that a thread has 399 * current so that proper server context management can be done. It is 400 * used for all context specific commands (i.e., \c Render, \c RenderLarge, 401 * \c WaitX, \c WaitGL, \c UseXFont, and \c MakeCurrent (for the old 402 * context)). 403 */ 404 GLXContextTag currentContextTag; 405 406 /** 407 * \name Rendering mode 408 * 409 * The rendering mode is kept on the client as well as the server. 410 * When \c glRenderMode is called, the buffer associated with the 411 * previous rendering mode (feedback or select) is filled. 412 */ 413 /*@{*/ 414 GLenum renderMode; 415 GLfloat *feedbackBuf; 416 GLuint *selectBuf; 417 /*@}*/ 418 419 /** 420 * This is \c GL_TRUE if the pixel unpack modes are such that an image 421 * can be unpacked from the clients memory by just copying. It may 422 * still be true that the server will have to do some work. This 423 * just promises that a straight copy will fetch the correct bytes. 424 */ 425 GLboolean fastImageUnpack; 426 427 /** 428 * Fill newImage with the unpacked form of \c oldImage getting it 429 * ready for transport to the server. 430 */ 431 void (*fillImage)(__GLXcontext*, GLint, GLint, GLint, GLint, GLenum, 432 GLenum, const GLvoid*, GLubyte*, GLubyte*); 433 434 /** 435 * \name Client side attribs. 436 */ 437 /*@{*/ 438 __GLXattributeDEPRECATED stateDEPRECATED; 439 __GLXattributeMachine attributes; 440 /*@}*/ 441 442 /** 443 * Client side error code. This is set when client side gl API 444 * routines need to set an error because of a bad enumerant or 445 * running out of memory, etc. 446 */ 447 GLenum error; 448 449 /** 450 * Whether this context does direct rendering. 451 */ 452 Bool isDirect; 453 454 /** 455 * \c dpy of current display for this context. Will be \c NULL if not 456 * current to any display, or if this is the "dummy context". 457 */ 458 Display *currentDpy; 459 460 /** 461 * The current drawable for this context. Will be None if this 462 * context is not current to any drawable. currentReadable is below. 463 */ 464 GLXDrawable currentDrawable; 465 466 /** 467 * \name GL Constant Strings 468 * 469 * Constant strings that describe the server implementation 470 * These pertain to GL attributes, not to be confused with 471 * GLX versioning attributes. 472 */ 473 /*@{*/ 474 GLubyte *vendor; 475 GLubyte *renderer; 476 GLubyte *version; 477 GLubyte *extensions; 478 /*@}*/ 479 480 /** 481 * Record the dpy this context was created on for later freeing 482 */ 483 Display *createDpy; 484 485 /** 486 * Maximum small render command size. This is the smaller of 64k and 487 * the size of the above buffer. 488 */ 489 GLint maxSmallRenderCommandSize; 490 491 /** 492 * Major opcode for the extension. Copied here so a lookup isn't 493 * needed. 494 */ 495 GLint majorOpcode; 496 497#ifdef GLX_DIRECT_RENDERING 498 /** 499 * Per context direct rendering interface functions and data. 500 */ 501 __DRIcontext driContext; 502#endif 503 504 /** 505 * \c GLXFBConfigID used to create this context. May be \c None. This 506 * field has been replaced by the \c mode field. 507 * 508 * \since Internal API version 20030317. 509 * 510 * \deprecated 511 * This filed has been largely been replaced by the \c mode field, but 512 * the work is not quite done. 513 */ 514 GLXFBConfigID fbconfigID; 515 516 /** 517 * The current read-drawable for this context. Will be None if this 518 * context is not current to any drawable. 519 * 520 * \since Internal API version 20030606. 521 */ 522 GLXDrawable currentReadable; 523 524 /** 525 * Pointer to client-state data that is private to libGL. This is only 526 * used for indirect rendering contexts. 527 * 528 * No internal API version change was made for this change. Client-side 529 * drivers should NEVER use this data or even care that it exists. 530 */ 531 void * client_state_private; 532 533 /** 534 * Stored value for \c glXQueryContext attribute \c GLX_RENDER_TYPE. 535 */ 536 int renderType; 537 538 /** 539 * \name Raw server GL version 540 * 541 * True core GL version supported by the server. This is the raw value 542 * returned by the server, and it may not reflect what is actually 543 * supported (or reported) by the client-side library. 544 */ 545 /*@{*/ 546 int server_major; /**< Major version number. */ 547 int server_minor; /**< Minor version number. */ 548 /*@}*/ 549}; 550 551#define __glXSetError(gc,code) \ 552 if (!(gc)->error) { \ 553 (gc)->error = code; \ 554 } 555 556extern void __glFreeAttributeState(__GLXcontext *); 557 558/************************************************************************/ 559 560/** 561 * The size of the largest drawing command known to the implementation 562 * that will use the GLXRender GLX command. In this case it is 563 * \c glPolygonStipple. 564 */ 565#define __GLX_MAX_SMALL_RENDER_CMD_SIZE 156 566 567/** 568 * To keep the implementation fast, the code uses a "limit" pointer 569 * to determine when the drawing command buffer is too full to hold 570 * another fixed size command. This constant defines the amount of 571 * space that must always be available in the drawing command buffer 572 * at all times for the implementation to work. It is important that 573 * the number be just large enough, but not so large as to reduce the 574 * efficacy of the buffer. The "+32" is just to keep the code working 575 * in case somebody counts wrong. 576 */ 577#define __GLX_BUFFER_LIMIT_SIZE (__GLX_MAX_SMALL_RENDER_CMD_SIZE + 32) 578 579/** 580 * This implementation uses a smaller threshold for switching 581 * to the RenderLarge protocol than the protcol requires so that 582 * large copies don't occur. 583 */ 584#define __GLX_RENDER_CMD_SIZE_LIMIT 4096 585 586/** 587 * One of these records exists per screen of the display. It contains 588 * a pointer to the config data for that screen (if the screen supports GL). 589 */ 590typedef struct __GLXscreenConfigsRec { 591 /** 592 * GLX visuals formated as \c __GLXvisualConfig structures. 593 */ 594 /*@{*/ 595 __GLXvisualConfig * old_configs; 596 int numOldConfigs; 597 /*@}*/ 598 599 /** 600 * GLX extension string reported by the X-server. 601 */ 602 const char *serverGLXexts; 603 604 /** 605 * GLX extension string to be reported to applications. This is the 606 * set of extensions that the application can actually use. 607 */ 608 char *effectiveGLXexts; 609 610#ifdef GLX_DIRECT_RENDERING 611 /** 612 * Per screen direct rendering interface functions and data. 613 */ 614 __DRIscreen driScreen; 615#endif 616 617 /** 618 * Linked list of configurations for this screen. This is intended to 619 * be a superset of \c old_configs. 620 */ 621 __GLcontextModes *configs; 622 /** 623 * Per-screen dynamic GLX extension tracking. The \c direct_support 624 * field only contains enough bits for 64 extensions. Should libGL 625 * ever need to track more than 64 GLX extensions, we can safely grow 626 * this field. The \c __GLXscreenConfigs structure is not used outside 627 * libGL. 628 */ 629 /*@{*/ 630 unsigned char direct_support[8]; 631 GLboolean ext_list_first_time; 632 /*@}*/ 633 634} __GLXscreenConfigs; 635 636/** 637 * Per display private data. One of these records exists for each display 638 * that is using the OpenGL (GLX) extension. 639 */ 640struct __GLXdisplayPrivateRec { 641 /** 642 * Back pointer to the display 643 */ 644 Display *dpy; 645 646 /** 647 * The \c majorOpcode is common to all connections to the same server. 648 * It is also copied into the context structure. 649 */ 650 int majorOpcode; 651 652 /** 653 * \name Server Version 654 * 655 * Major and minor version returned by the server during initialization. 656 */ 657 /*@{*/ 658 int majorVersion, minorVersion; 659 /*@}*/ 660 661 /** 662 * \name Storage for the servers GLX vendor and versions strings. 663 * 664 * These are the same for all screens on this display. These fields will 665 * be filled in on demand. 666 */ 667 /*@{*/ 668 const char *serverGLXvendor; 669 const char *serverGLXversion; 670 /*@}*/ 671 672 /** 673 * Configurations of visuals for all screens on this display. 674 * Also, per screen data which now includes the server \c GLX_EXTENSION 675 * string. 676 */ 677 __GLXscreenConfigs *screenConfigs; 678 679#ifdef GLX_DIRECT_RENDERING 680 /** 681 * Per display direct rendering interface functions and data. 682 */ 683 __DRIdisplay driDisplay; 684#endif 685}; 686 687void __glXFreeContext(__GLXcontext*); 688 689extern GLubyte *__glXFlushRenderBuffer(__GLXcontext*, GLubyte*); 690 691extern void __glXSendLargeChunk(__GLXcontext *gc, GLint requestNumber, 692 GLint totalRequests, 693 const GLvoid * data, GLint dataLen); 694 695extern void __glXSendLargeCommand(__GLXcontext *, const GLvoid *, GLint, 696 const GLvoid *, GLint); 697 698/* Initialize the GLX extension for dpy */ 699extern __GLXdisplayPrivate *__glXInitialize(Display*); 700 701/************************************************************************/ 702 703extern int __glXDebug; 704 705/* This is per-thread storage in an MT environment */ 706#if defined(GLX_DIRECT_RENDERING) && defined(XTHREADS) 707extern __GLXcontext *__glXGetCurrentContext(void); 708extern void __glXSetCurrentContext(__GLXcontext *c); 709#else 710extern __GLXcontext *__glXcurrentContext; 711#define __glXGetCurrentContext() __glXcurrentContext 712#define __glXSetCurrentContext(gc) __glXcurrentContext = gc 713#endif 714 715 716/* 717** Global lock for all threads in this address space using the GLX 718** extension 719*/ 720#if defined(GLX_DIRECT_RENDERING) && defined(XTHREADS) 721extern xmutex_rec __glXmutex; 722#define __glXLock() xmutex_lock(&__glXmutex) 723#define __glXUnlock() xmutex_unlock(&__glXmutex) 724#else 725#define __glXLock() 726#define __glXUnlock() 727#endif 728 729/* 730** Setup for a command. Initialize the extension for dpy if necessary. 731*/ 732extern CARD8 __glXSetupForCommand(Display *dpy); 733 734/************************************************************************/ 735 736/* 737** Data conversion and packing support. 738*/ 739 740extern const GLuint __glXDefaultPixelStore[9]; 741 742/* Send an image to the server using RenderLarge. */ 743extern void __glXSendLargeImage(__GLXcontext *gc, GLint compsize, GLint dim, 744 GLint width, GLint height, GLint depth, GLenum format, GLenum type, 745 const GLvoid *src, GLubyte *pc, GLubyte *modes); 746 747/* Return the size, in bytes, of some pixel data */ 748extern GLint __glImageSize(GLint, GLint, GLint, GLenum, GLenum, GLenum); 749 750/* Return the number of elements per group of a specified format*/ 751extern GLint __glElementsPerGroup(GLenum format, GLenum type); 752 753/* Return the number of bytes per element, based on the element type (other 754** than GL_BITMAP). 755*/ 756extern GLint __glBytesPerElement(GLenum type); 757 758/* 759** Fill the transport buffer with the data from the users buffer, 760** applying some of the pixel store modes (unpack modes) to the data 761** first. As a side effect of this call, the "modes" field is 762** updated to contain the modes needed by the server to decode the 763** sent data. 764*/ 765extern void __glFillImage(__GLXcontext*, GLint, GLint, GLint, GLint, GLenum, 766 GLenum, const GLvoid*, GLubyte*, GLubyte*); 767 768/* Copy map data with a stride into a packed buffer */ 769extern void __glFillMap1f(GLint, GLint, GLint, const GLfloat *, GLubyte *); 770extern void __glFillMap1d(GLint, GLint, GLint, const GLdouble *, GLubyte *); 771extern void __glFillMap2f(GLint, GLint, GLint, GLint, GLint, 772 const GLfloat *, GLfloat *); 773extern void __glFillMap2d(GLint, GLint, GLint, GLint, GLint, 774 const GLdouble *, GLdouble *); 775 776/* 777** Empty an image out of the reply buffer into the clients memory applying 778** the pack modes to pack back into the clients requested format. 779*/ 780extern void __glEmptyImage(__GLXcontext*, GLint, GLint, GLint, GLint, GLenum, 781 GLenum, const GLubyte *, GLvoid *); 782 783 784/* 785** Allocate and Initialize Vertex Array client state 786*/ 787extern void __glXInitVertexArrayState(__GLXcontext*); 788 789/* 790** Inform the Server of the major and minor numbers and of the client 791** libraries extension string. 792*/ 793extern void __glXClientInfo ( Display *dpy, int opcode ); 794 795/************************************************************************/ 796 797/* 798** Declarations that should be in Xlib 799*/ 800#ifdef __GL_USE_OUR_PROTOTYPES 801extern void _XFlush(Display*); 802extern Status _XReply(Display*, xReply*, int, Bool); 803extern void _XRead(Display*, void*, long); 804extern void _XSend(Display*, const void*, long); 805#endif 806 807 808/* 809** GLX_BUILT_IN_XMESA controls whether libGL has a built-in verions of 810** Mesa that can render to non-GLX displays. 811*/ 812#ifdef GLX_BUILT_IN_XMESA 813#define GLX_PREFIX(function) _real_##function 814#else 815#define GLX_PREFIX(function) function 816#endif 817 818 819extern void __glXInitializeVisualConfigFromTags( __GLcontextModes *config, 820 int count, const INT32 *bp, Bool tagged_only, Bool fbconfig_style_tags ); 821 822extern char * __glXGetStringFromServer( Display * dpy, int opcode, 823 CARD32 glxCode, CARD32 for_whom, CARD32 name ); 824 825extern char *__glXstrdup(const char *str); 826 827 828extern const char __glXGLClientVersion[]; 829extern const char __glXGLClientExtensions[]; 830 831/* Determine the internal API version */ 832extern int __glXGetInternalVersion(void); 833 834/* Get the unadjusted system time */ 835extern int __glXGetUST( int64_t * ust ); 836 837#endif /* !__GLX_client_h__ */ 838