Adam Jackson | cb3610e | 2004-10-25 21:09:16 +0000 | [diff] [blame^] | 1 | /* |
| 2 | ** License Applicability. Except to the extent portions of this file are |
| 3 | ** made subject to an alternative license as permitted in the SGI Free |
| 4 | ** Software License B, Version 1.1 (the "License"), the contents of this |
| 5 | ** file are subject only to the provisions of the License. You may not use |
| 6 | ** this file except in compliance with the License. You may obtain a copy |
| 7 | ** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 |
| 8 | ** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: |
| 9 | ** |
| 10 | ** http://oss.sgi.com/projects/FreeB |
| 11 | ** |
| 12 | ** Note that, as provided in the License, the Software is distributed on an |
| 13 | ** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS |
| 14 | ** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND |
| 15 | ** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A |
| 16 | ** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. |
| 17 | ** |
| 18 | ** Original Code. The Original Code is: OpenGL Sample Implementation, |
| 19 | ** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, |
| 20 | ** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. |
| 21 | ** Copyright in any portions created by third parties is as indicated |
| 22 | ** elsewhere herein. All Rights Reserved. |
| 23 | ** |
| 24 | ** Additional Notice Provisions: The application programming interfaces |
| 25 | ** established by SGI in conjunction with the Original Code are The |
| 26 | ** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released |
| 27 | ** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version |
| 28 | ** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X |
| 29 | ** Window System(R) (Version 1.3), released October 19, 1998. This software |
| 30 | ** was created using the OpenGL(R) version 1.2.1 Sample Implementation |
| 31 | ** published by SGI, but has not been independently verified as being |
| 32 | ** compliant with the OpenGL(R) version 1.2.1 Specification. |
| 33 | */ |
| 34 | /* $XFree86: xc/lib/GL/glx/glxclient.h,v 1.21 2004/02/09 23:46:31 alanh Exp $ */ |
| 35 | |
| 36 | /** |
| 37 | * \file glxclient.h |
| 38 | * Direct rendering support added by Precision Insight, Inc. |
| 39 | * |
| 40 | * \author Kevin E. Martin <kevin@precisioninsight.com> |
| 41 | */ |
| 42 | |
| 43 | #ifndef _GLX_client_h_ |
| 44 | #define _GLX_client_h_ |
| 45 | #define NEED_REPLIES |
| 46 | #define NEED_EVENTS |
| 47 | #include <X11/Xproto.h> |
| 48 | #include <X11/Xlibint.h> |
| 49 | #define GLX_GLXEXT_PROTOTYPES |
| 50 | #include <GL/glx.h> |
| 51 | #include <GL/glxext.h> |
| 52 | #include <string.h> |
| 53 | #include <stdlib.h> |
| 54 | #include <stdio.h> |
| 55 | #include "GL/glxint.h" |
| 56 | #include "GL/glxproto.h" |
| 57 | #include "GL/internal/glcore.h" |
| 58 | #include "glapitable.h" |
| 59 | #ifdef NEED_GL_FUNCS_WRAPPED |
| 60 | #include "indirect.h" |
| 61 | #endif |
| 62 | #ifdef XTHREADS |
| 63 | #include "Xthreads.h" |
| 64 | #endif |
| 65 | #ifdef GLX_BUILT_IN_XMESA |
| 66 | #include "realglx.h" /* just silences prototype warnings */ |
| 67 | #endif |
| 68 | |
| 69 | #define GLX_MAJOR_VERSION 1 /* current version numbers */ |
| 70 | #define GLX_MINOR_VERSION 4 |
| 71 | |
| 72 | #define __GLX_MAX_TEXTURE_UNITS 32 |
| 73 | |
| 74 | typedef struct __GLXcontextRec __GLXcontext; |
| 75 | typedef struct __GLXdisplayPrivateRec __GLXdisplayPrivate; |
| 76 | typedef struct _glapi_table __GLapi; |
| 77 | |
| 78 | /************************************************************************/ |
| 79 | |
| 80 | #ifdef GLX_DIRECT_RENDERING |
| 81 | |
| 82 | #include <GL/internal/dri_interface.h> |
| 83 | |
| 84 | typedef void *(*CreateScreenFunc)(Display *dpy, int scrn, __DRIscreen *psc, |
| 85 | int numConfigs, __GLXvisualConfig *config); |
| 86 | |
| 87 | typedef 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 | */ |
| 98 | struct __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 | */ |
| 134 | struct __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 | */ |
| 146 | extern void *driCreateDisplay(Display *dpy, __DRIdisplay *pdisp); |
| 147 | |
| 148 | extern __DRIdriver *driGetDriver(Display *dpy, int scrNum); |
| 149 | |
| 150 | extern 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 | */ |
| 156 | extern const char *glXGetScreenDriver (Display *dpy, int scrNum); |
| 157 | |
| 158 | extern const char *glXGetDriverConfig (const char *driverName); |
| 159 | |
| 160 | #endif |
| 161 | |
| 162 | /************************************************************************/ |
| 163 | |
| 164 | #define __GL_CLIENT_ATTRIB_STACK_DEPTH 16 |
| 165 | |
| 166 | typedef struct __GLXpixelStoreModeRec { |
| 167 | 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 | |
| 183 | typedef 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 | |
| 193 | typedef 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 | |
| 205 | typedef 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 | |
| 223 | typedef 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 | */ |
| 241 | enum { |
| 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 | */ |
| 278 | typedef 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 | |
| 305 | typedef 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 | |
| 329 | typedef 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 | */ |
| 338 | struct __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 | |
| 556 | extern 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 | */ |
| 590 | typedef 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 | */ |
| 640 | struct __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 | |
| 687 | void __glXFreeContext(__GLXcontext*); |
| 688 | |
| 689 | extern GLubyte *__glXFlushRenderBuffer(__GLXcontext*, GLubyte*); |
| 690 | |
| 691 | extern void __glXSendLargeChunk(__GLXcontext *gc, GLint requestNumber, |
| 692 | GLint totalRequests, |
| 693 | const GLvoid * data, GLint dataLen); |
| 694 | |
| 695 | extern void __glXSendLargeCommand(__GLXcontext *, const GLvoid *, GLint, |
| 696 | const GLvoid *, GLint); |
| 697 | |
| 698 | /* Initialize the GLX extension for dpy */ |
| 699 | extern __GLXdisplayPrivate *__glXInitialize(Display*); |
| 700 | |
| 701 | /************************************************************************/ |
| 702 | |
| 703 | extern int __glXDebug; |
| 704 | |
| 705 | /* This is per-thread storage in an MT environment */ |
| 706 | #if defined(GLX_DIRECT_RENDERING) && defined(XTHREADS) |
| 707 | extern __GLXcontext *__glXGetCurrentContext(void); |
| 708 | extern void __glXSetCurrentContext(__GLXcontext *c); |
| 709 | #else |
| 710 | extern __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) |
| 721 | extern 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 | */ |
| 732 | extern CARD8 __glXSetupForCommand(Display *dpy); |
| 733 | |
| 734 | /************************************************************************/ |
| 735 | |
| 736 | /* |
| 737 | ** Data conversion and packing support. |
| 738 | */ |
| 739 | |
| 740 | /* Return the size, in bytes, of some pixel data */ |
| 741 | extern GLint __glImageSize(GLint, GLint, GLint, GLenum, GLenum); |
| 742 | |
| 743 | /* Return the number of elements per group of a specified format*/ |
| 744 | extern GLint __glElementsPerGroup(GLenum format, GLenum type); |
| 745 | |
| 746 | /* Return the number of bytes per element, based on the element type (other |
| 747 | ** than GL_BITMAP). |
| 748 | */ |
| 749 | extern GLint __glBytesPerElement(GLenum type); |
| 750 | |
| 751 | /* Return the k value for a given map target */ |
| 752 | extern GLint __glEvalComputeK(GLenum); |
| 753 | |
| 754 | /* |
| 755 | ** Fill the transport buffer with the data from the users buffer, |
| 756 | ** applying some of the pixel store modes (unpack modes) to the data |
| 757 | ** first. As a side effect of this call, the "modes" field is |
| 758 | ** updated to contain the modes needed by the server to decode the |
| 759 | ** sent data. |
| 760 | */ |
| 761 | extern void __glFillImage(__GLXcontext*, GLint, GLint, GLint, GLint, GLenum, |
| 762 | GLenum, const GLvoid*, GLubyte*, GLubyte*); |
| 763 | |
| 764 | /* Copy map data with a stride into a packed buffer */ |
| 765 | extern void __glFillMap1f(GLint, GLint, GLint, const GLfloat *, GLubyte *); |
| 766 | extern void __glFillMap1d(GLint, GLint, GLint, const GLdouble *, GLubyte *); |
| 767 | extern void __glFillMap2f(GLint, GLint, GLint, GLint, GLint, |
| 768 | const GLfloat *, GLfloat *); |
| 769 | extern void __glFillMap2d(GLint, GLint, GLint, GLint, GLint, |
| 770 | const GLdouble *, GLdouble *); |
| 771 | |
| 772 | /* |
| 773 | ** Empty an image out of the reply buffer into the clients memory applying |
| 774 | ** the pack modes to pack back into the clients requested format. |
| 775 | */ |
| 776 | extern void __glEmptyImage(__GLXcontext*, GLint, GLint, GLint, GLint, GLenum, |
| 777 | GLenum, const GLubyte *, GLvoid *); |
| 778 | |
| 779 | |
| 780 | /* |
| 781 | ** Allocate and Initialize Vertex Array client state |
| 782 | */ |
| 783 | extern void __glXInitVertexArrayState(__GLXcontext*); |
| 784 | |
| 785 | /* |
| 786 | ** Inform the Server of the major and minor numbers and of the client |
| 787 | ** libraries extension string. |
| 788 | */ |
| 789 | extern void __glXClientInfo ( Display *dpy, int opcode ); |
| 790 | |
| 791 | /************************************************************************/ |
| 792 | |
| 793 | /* |
| 794 | ** Declarations that should be in Xlib |
| 795 | */ |
| 796 | #ifdef __GL_USE_OUR_PROTOTYPES |
| 797 | extern void _XFlush(Display*); |
| 798 | extern Status _XReply(Display*, xReply*, int, Bool); |
| 799 | extern void _XRead(Display*, void*, long); |
| 800 | extern void _XSend(Display*, const void*, long); |
| 801 | #endif |
| 802 | |
| 803 | |
| 804 | /* |
| 805 | ** GLX_BUILT_IN_XMESA controls whether libGL has a built-in verions of |
| 806 | ** Mesa that can render to non-GLX displays. |
| 807 | */ |
| 808 | #ifdef GLX_BUILT_IN_XMESA |
| 809 | #define GLX_PREFIX(function) _real_##function |
| 810 | #else |
| 811 | #define GLX_PREFIX(function) function |
| 812 | #endif |
| 813 | |
| 814 | |
| 815 | extern void __glXInitializeVisualConfigFromTags( __GLcontextModes *config, |
| 816 | int count, const INT32 *bp, Bool tagged_only, Bool fbconfig_style_tags ); |
| 817 | |
| 818 | extern char * __glXGetStringFromServer( Display * dpy, int opcode, |
| 819 | CARD32 glxCode, CARD32 for_whom, CARD32 name ); |
| 820 | |
| 821 | extern char *__glXstrdup(const char *str); |
| 822 | |
| 823 | |
| 824 | extern const char __glXGLClientVersion[]; |
| 825 | extern const char __glXGLClientExtensions[]; |
| 826 | |
| 827 | /* Determine the internal API version */ |
| 828 | extern int __glXGetInternalVersion(void); |
| 829 | |
| 830 | /* Get the unadjusted system time */ |
| 831 | extern int __glXGetUST( int64_t * ust ); |
| 832 | |
| 833 | #endif /* !__GLX_client_h__ */ |