glxcmds.c revision 4df137691ee29bb812347fa2c5f19095243ede22
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 glxcmds.c 33 * Client-side GLX interface. 34 */ 35 36#include "glxclient.h" 37#include "glapi.h" 38#include "glxextensions.h" 39#include "indirect.h" 40 41#ifdef GLX_DIRECT_RENDERING 42#ifdef GLX_USE_APPLEGL 43#include "apple_glx_context.h" 44#include "apple_glx.h" 45#include "glx_error.h" 46#else 47#include <sys/time.h> 48#ifdef XF86VIDMODE 49#include <X11/extensions/xf86vmode.h> 50#endif 51#include "xf86dri.h" 52#endif 53#else 54#endif 55 56#if defined(USE_XCB) 57#include <X11/Xlib-xcb.h> 58#include <xcb/xcb.h> 59#include <xcb/glx.h> 60#endif 61 62static const char __glXGLXClientVendorName[] = "Mesa Project and SGI"; 63static const char __glXGLXClientVersion[] = "1.4"; 64 65#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) 66 67/** 68 * Get the __DRIdrawable for the drawable associated with a GLXContext 69 * 70 * \param dpy The display associated with \c drawable. 71 * \param drawable GLXDrawable whose __DRIdrawable part is to be retrieved. 72 * \param scrn_num If non-NULL, the drawables screen is stored there 73 * \returns A pointer to the context's __DRIdrawable on success, or NULL if 74 * the drawable is not associated with a direct-rendering context. 75 */ 76_X_HIDDEN __GLXDRIdrawable * 77GetGLXDRIDrawable(Display * dpy, GLXDrawable drawable) 78{ 79 struct glx_display *priv = __glXInitialize(dpy); 80 __GLXDRIdrawable *pdraw; 81 82 if (priv == NULL) 83 return NULL; 84 85 if (__glxHashLookup(priv->drawHash, drawable, (void *) &pdraw) == 0) 86 return pdraw; 87 88 return NULL; 89} 90 91#endif 92 93_X_HIDDEN struct glx_drawable * 94GetGLXDrawable(Display *dpy, GLXDrawable drawable) 95{ 96 struct glx_display *priv = __glXInitialize(dpy); 97 struct glx_drawable *glxDraw; 98 99 if (priv == NULL) 100 return NULL; 101 102 if (__glxHashLookup(priv->glXDrawHash, drawable, (void *) &glxDraw) == 0) 103 return glxDraw; 104 105 return NULL; 106} 107 108_X_HIDDEN int 109InitGLXDrawable(Display *dpy, struct glx_drawable *glxDraw, XID xDrawable, 110 GLXDrawable drawable) 111{ 112 struct glx_display *priv = __glXInitialize(dpy); 113 114 if (!priv) 115 return -1; 116 117 glxDraw->xDrawable = xDrawable; 118 glxDraw->drawable = drawable; 119 glxDraw->lastEventSbc = 0; 120 glxDraw->eventSbcWrap = 0; 121 122 return __glxHashInsert(priv->glXDrawHash, drawable, glxDraw); 123} 124 125_X_HIDDEN void 126DestroyGLXDrawable(Display *dpy, GLXDrawable drawable) 127{ 128 struct glx_display *priv = __glXInitialize(dpy); 129 struct glx_drawable *glxDraw; 130 131 if (!priv) 132 return; 133 134 glxDraw = GetGLXDrawable(dpy, drawable); 135 __glxHashDelete(priv->glXDrawHash, drawable); 136 free(glxDraw); 137} 138 139/** 140 * Get the GLX per-screen data structure associated with a GLX context. 141 * 142 * \param dpy Display for which the GLX per-screen information is to be 143 * retrieved. 144 * \param scrn Screen on \c dpy for which the GLX per-screen information is 145 * to be retrieved. 146 * \returns A pointer to the GLX per-screen data if \c dpy and \c scrn 147 * specify a valid GLX screen, or NULL otherwise. 148 * 149 * \todo Should this function validate that \c scrn is within the screen 150 * number range for \c dpy? 151 */ 152 153static struct glx_screen * 154GetGLXScreenConfigs(Display * dpy, int scrn) 155{ 156 struct glx_display *const priv = __glXInitialize(dpy); 157 158 return (priv 159 && priv->screens != 160 NULL) ? priv->screens[scrn] : NULL; 161} 162 163 164static int 165GetGLXPrivScreenConfig(Display * dpy, int scrn, struct glx_display ** ppriv, 166 struct glx_screen ** ppsc) 167{ 168 /* Initialize the extension, if needed . This has the added value 169 * of initializing/allocating the display private 170 */ 171 172 if (dpy == NULL) { 173 return GLX_NO_EXTENSION; 174 } 175 176 *ppriv = __glXInitialize(dpy); 177 if (*ppriv == NULL) { 178 return GLX_NO_EXTENSION; 179 } 180 181 /* Check screen number to see if its valid */ 182 if ((scrn < 0) || (scrn >= ScreenCount(dpy))) { 183 return GLX_BAD_SCREEN; 184 } 185 186 /* Check to see if the GL is supported on this screen */ 187 *ppsc = (*ppriv)->screens[scrn]; 188 if ((*ppsc)->configs == NULL) { 189 /* No support for GL on this screen regardless of visual */ 190 return GLX_BAD_VISUAL; 191 } 192 193 return Success; 194} 195 196 197/** 198 * Determine if a \c GLXFBConfig supplied by the application is valid. 199 * 200 * \param dpy Application supplied \c Display pointer. 201 * \param config Application supplied \c GLXFBConfig. 202 * 203 * \returns If the \c GLXFBConfig is valid, the a pointer to the matching 204 * \c struct glx_config structure is returned. Otherwise, \c NULL 205 * is returned. 206 */ 207static struct glx_config * 208ValidateGLXFBConfig(Display * dpy, GLXFBConfig fbconfig) 209{ 210 struct glx_display *const priv = __glXInitialize(dpy); 211 int num_screens = ScreenCount(dpy); 212 unsigned i; 213 struct glx_config *config; 214 215 if (priv != NULL) { 216 for (i = 0; i < num_screens; i++) { 217 for (config = priv->screens[i]->configs; config != NULL; 218 config = config->next) { 219 if (config == (struct glx_config *) fbconfig) { 220 return config; 221 } 222 } 223 } 224 } 225 226 return NULL; 227} 228 229_X_HIDDEN Bool 230glx_context_init(struct glx_context *gc, 231 struct glx_screen *psc, struct glx_config *config) 232{ 233 gc->majorOpcode = __glXSetupForCommand(psc->display->dpy); 234 if (!gc->majorOpcode) 235 return GL_FALSE; 236 237 gc->screen = psc->scr; 238 gc->psc = psc; 239 gc->config = config; 240 gc->isDirect = GL_TRUE; 241 gc->currentContextTag = -1; 242 243 return GL_TRUE; 244} 245 246 247/** 248 * Create a new context. 249 * 250 * \param renderType For FBConfigs, what is the rendering type? 251 */ 252 253static GLXContext 254CreateContext(Display *dpy, int generic_id, struct glx_config *config, 255 GLXContext shareList_user, Bool allowDirect, 256 unsigned code, int renderType, int screen) 257{ 258 struct glx_context *gc; 259 struct glx_screen *psc; 260 struct glx_context *shareList = (struct glx_context *) shareList_user; 261 if (dpy == NULL) 262 return NULL; 263 264 psc = GetGLXScreenConfigs(dpy, screen); 265 if (psc == NULL) 266 return NULL; 267 268 if (generic_id == None) 269 return NULL; 270 271 gc = NULL; 272#ifdef GLX_USE_APPLEGL 273 gc = applegl_create_context(psc, config, shareList, renderType); 274#else 275 if (allowDirect && psc->vtable->create_context) 276 gc = psc->vtable->create_context(psc, config, shareList, renderType); 277 if (!gc) 278 gc = indirect_create_context(psc, config, shareList, renderType); 279#endif 280 if (!gc) 281 return NULL; 282 283 LockDisplay(dpy); 284 switch (code) { 285 case X_GLXCreateContext: { 286 xGLXCreateContextReq *req; 287 288 /* Send the glXCreateContext request */ 289 GetReq(GLXCreateContext, req); 290 req->reqType = gc->majorOpcode; 291 req->glxCode = X_GLXCreateContext; 292 req->context = gc->xid = XAllocID(dpy); 293 req->visual = generic_id; 294 req->screen = screen; 295 req->shareList = shareList ? shareList->xid : None; 296 req->isDirect = gc->isDirect; 297 break; 298 } 299 300 case X_GLXCreateNewContext: { 301 xGLXCreateNewContextReq *req; 302 303 /* Send the glXCreateNewContext request */ 304 GetReq(GLXCreateNewContext, req); 305 req->reqType = gc->majorOpcode; 306 req->glxCode = X_GLXCreateNewContext; 307 req->context = gc->xid = XAllocID(dpy); 308 req->fbconfig = generic_id; 309 req->screen = screen; 310 req->renderType = renderType; 311 req->shareList = shareList ? shareList->xid : None; 312 req->isDirect = gc->isDirect; 313 break; 314 } 315 316 case X_GLXvop_CreateContextWithConfigSGIX: { 317 xGLXVendorPrivateWithReplyReq *vpreq; 318 xGLXCreateContextWithConfigSGIXReq *req; 319 320 /* Send the glXCreateNewContext request */ 321 GetReqExtra(GLXVendorPrivateWithReply, 322 sz_xGLXCreateContextWithConfigSGIXReq - 323 sz_xGLXVendorPrivateWithReplyReq, vpreq); 324 req = (xGLXCreateContextWithConfigSGIXReq *) vpreq; 325 req->reqType = gc->majorOpcode; 326 req->glxCode = X_GLXVendorPrivateWithReply; 327 req->vendorCode = X_GLXvop_CreateContextWithConfigSGIX; 328 req->context = gc->xid = XAllocID(dpy); 329 req->fbconfig = generic_id; 330 req->screen = screen; 331 req->renderType = renderType; 332 req->shareList = shareList ? shareList->xid : None; 333 req->isDirect = gc->isDirect; 334 break; 335 } 336 337 default: 338 /* What to do here? This case is the sign of an internal error. It 339 * should never be reachable. 340 */ 341 break; 342 } 343 344 UnlockDisplay(dpy); 345 SyncHandle(); 346 347 gc->imported = GL_FALSE; 348 gc->renderType = renderType; 349 350 return (GLXContext) gc; 351} 352 353_X_EXPORT GLXContext 354glXCreateContext(Display * dpy, XVisualInfo * vis, 355 GLXContext shareList, Bool allowDirect) 356{ 357 struct glx_config *config = NULL; 358 int renderType = 0; 359 360#if defined(GLX_DIRECT_RENDERING) || defined(GLX_USE_APPLEGL) 361 struct glx_screen *const psc = GetGLXScreenConfigs(dpy, vis->screen); 362 363 config = glx_config_find_visual(psc->visuals, vis->visualid); 364 if (config == NULL) { 365 xError error; 366 367 error.errorCode = BadValue; 368 error.resourceID = vis->visualid; 369 error.sequenceNumber = dpy->request; 370 error.type = X_Error; 371 error.majorCode = __glXSetupForCommand(dpy); 372 error.minorCode = X_GLXCreateContext; 373 _XError(dpy, &error); 374 return None; 375 } 376 377 renderType = config->rgbMode ? GLX_RGBA_TYPE : GLX_COLOR_INDEX_TYPE; 378#endif 379 380 return CreateContext(dpy, vis->visualid, config, shareList, allowDirect, 381 X_GLXCreateContext, renderType, vis->screen); 382} 383 384_X_HIDDEN void 385glx_send_destroy_context(Display *dpy, XID xid) 386{ 387 CARD8 opcode = __glXSetupForCommand(dpy); 388 xGLXDestroyContextReq *req; 389 390 LockDisplay(dpy); 391 GetReq(GLXDestroyContext, req); 392 req->reqType = opcode; 393 req->glxCode = X_GLXDestroyContext; 394 req->context = xid; 395 UnlockDisplay(dpy); 396 SyncHandle(); 397} 398 399/* 400** Destroy the named context 401*/ 402 403_X_EXPORT void 404glXDestroyContext(Display * dpy, GLXContext ctx) 405{ 406 struct glx_context *gc = (struct glx_context *) ctx; 407 408 if (!gc) 409 return; 410 411 __glXLock(); 412 if (gc->currentDpy) { 413 /* This context is bound to some thread. According to the man page, 414 * we should not actually delete the context until it's unbound. 415 * Note that we set gc->xid = None above. In MakeContextCurrent() 416 * we check for that and delete the context there. 417 */ 418 if (!gc->imported) 419 glx_send_destroy_context(dpy, gc->xid); 420 gc->xid = None; 421 __glXUnlock(); 422 return; 423 } 424 __glXUnlock(); 425 426 gc->vtable->destroy(gc); 427} 428 429/* 430** Return the major and minor version #s for the GLX extension 431*/ 432_X_EXPORT Bool 433glXQueryVersion(Display * dpy, int *major, int *minor) 434{ 435 struct glx_display *priv; 436 437 /* Init the extension. This fetches the major and minor version. */ 438 priv = __glXInitialize(dpy); 439 if (!priv) 440 return GL_FALSE; 441 442 if (major) 443 *major = priv->majorVersion; 444 if (minor) 445 *minor = priv->minorVersion; 446 return GL_TRUE; 447} 448 449/* 450** Query the existance of the GLX extension 451*/ 452_X_EXPORT Bool 453glXQueryExtension(Display * dpy, int *errorBase, int *eventBase) 454{ 455 int major_op, erb, evb; 456 Bool rv; 457 458 rv = XQueryExtension(dpy, GLX_EXTENSION_NAME, &major_op, &evb, &erb); 459 if (rv) { 460 if (errorBase) 461 *errorBase = erb; 462 if (eventBase) 463 *eventBase = evb; 464 } 465 return rv; 466} 467 468/* 469** Put a barrier in the token stream that forces the GL to finish its 470** work before X can proceed. 471*/ 472_X_EXPORT void 473glXWaitGL(void) 474{ 475 struct glx_context *gc = __glXGetCurrentContext(); 476 477 if (gc && gc->vtable->wait_gl) 478 gc->vtable->wait_gl(gc); 479} 480 481/* 482** Put a barrier in the token stream that forces X to finish its 483** work before GL can proceed. 484*/ 485_X_EXPORT void 486glXWaitX(void) 487{ 488 struct glx_context *gc = __glXGetCurrentContext(); 489 490 if (gc && gc->vtable->wait_x) 491 gc->vtable->wait_x(gc); 492} 493 494_X_EXPORT void 495glXUseXFont(Font font, int first, int count, int listBase) 496{ 497 struct glx_context *gc = __glXGetCurrentContext(); 498 499 if (gc && gc->vtable->use_x_font) 500 gc->vtable->use_x_font(gc, font, first, count, listBase); 501} 502 503/************************************************************************/ 504 505/* 506** Copy the source context to the destination context using the 507** attribute "mask". 508*/ 509_X_EXPORT void 510glXCopyContext(Display * dpy, GLXContext source_user, 511 GLXContext dest_user, unsigned long mask) 512{ 513 struct glx_context *source = (struct glx_context *) source_user; 514 struct glx_context *dest = (struct glx_context *) dest_user; 515#ifdef GLX_USE_APPLEGL 516 struct glx_context *gc = __glXGetCurrentContext(); 517 int errorcode; 518 bool x11error; 519 520 if(apple_glx_copy_context(gc->driContext, source->driContext, dest->driContext, 521 mask, &errorcode, &x11error)) { 522 __glXSendError(dpy, errorcode, 0, X_GLXCopyContext, x11error); 523 } 524 525#else 526 xGLXCopyContextReq *req; 527 struct glx_context *gc = __glXGetCurrentContext(); 528 GLXContextTag tag; 529 CARD8 opcode; 530 531 opcode = __glXSetupForCommand(dpy); 532 if (!opcode) { 533 return; 534 } 535 536#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) 537 if (gc->isDirect) { 538 /* NOT_DONE: This does not work yet */ 539 } 540#endif 541 542 /* 543 ** If the source is the current context, send its tag so that the context 544 ** can be flushed before the copy. 545 */ 546 if (source == gc && dpy == gc->currentDpy) { 547 tag = gc->currentContextTag; 548 } 549 else { 550 tag = 0; 551 } 552 553 /* Send the glXCopyContext request */ 554 LockDisplay(dpy); 555 GetReq(GLXCopyContext, req); 556 req->reqType = opcode; 557 req->glxCode = X_GLXCopyContext; 558 req->source = source ? source->xid : None; 559 req->dest = dest ? dest->xid : None; 560 req->mask = mask; 561 req->contextTag = tag; 562 UnlockDisplay(dpy); 563 SyncHandle(); 564#endif /* GLX_USE_APPLEGL */ 565} 566 567 568/** 569 * Determine if a context uses direct rendering. 570 * 571 * \param dpy Display where the context was created. 572 * \param contextID ID of the context to be tested. 573 * 574 * \returns \c GL_TRUE if the context is direct rendering or not. 575 */ 576static Bool 577__glXIsDirect(Display * dpy, GLXContextID contextID) 578{ 579#if !defined(USE_XCB) 580 xGLXIsDirectReq *req; 581 xGLXIsDirectReply reply; 582#endif 583 CARD8 opcode; 584 585 opcode = __glXSetupForCommand(dpy); 586 if (!opcode) { 587 return GL_FALSE; 588 } 589 590#ifdef USE_XCB 591 xcb_connection_t *c = XGetXCBConnection(dpy); 592 xcb_glx_is_direct_reply_t *reply = xcb_glx_is_direct_reply(c, 593 xcb_glx_is_direct 594 (c, contextID), 595 NULL); 596 597 const Bool is_direct = reply->is_direct ? True : False; 598 free(reply); 599 600 return is_direct; 601#else 602 /* Send the glXIsDirect request */ 603 LockDisplay(dpy); 604 GetReq(GLXIsDirect, req); 605 req->reqType = opcode; 606 req->glxCode = X_GLXIsDirect; 607 req->context = contextID; 608 _XReply(dpy, (xReply *) & reply, 0, False); 609 UnlockDisplay(dpy); 610 SyncHandle(); 611 612 return reply.isDirect; 613#endif /* USE_XCB */ 614} 615 616/** 617 * \todo 618 * Shouldn't this function \b always return \c GL_FALSE when 619 * \c GLX_DIRECT_RENDERING is not defined? Do we really need to bother with 620 * the GLX protocol here at all? 621 */ 622_X_EXPORT Bool 623glXIsDirect(Display * dpy, GLXContext gc_user) 624{ 625 struct glx_context *gc = (struct glx_context *) gc_user; 626 627 if (!gc) { 628 return GL_FALSE; 629 } 630 else if (gc->isDirect) { 631 return GL_TRUE; 632 } 633#ifdef GLX_USE_APPLEGL /* TODO: indirect on darwin */ 634 return GL_FALSE; 635#else 636 return __glXIsDirect(dpy, gc->xid); 637#endif 638} 639 640_X_EXPORT GLXPixmap 641glXCreateGLXPixmap(Display * dpy, XVisualInfo * vis, Pixmap pixmap) 642{ 643#ifdef GLX_USE_APPLEGL 644 int screen = vis->screen; 645 struct glx_screen *const psc = GetGLXScreenConfigs(dpy, screen); 646 const struct glx_config *config; 647 648 config = glx_config_find_visual(psc->visuals, vis->visualid); 649 650 if(apple_glx_pixmap_create(dpy, vis->screen, pixmap, config)) 651 return None; 652 653 return pixmap; 654#else 655 xGLXCreateGLXPixmapReq *req; 656 struct glx_drawable *glxDraw; 657 GLXPixmap xid; 658 CARD8 opcode; 659 660 opcode = __glXSetupForCommand(dpy); 661 if (!opcode) { 662 return None; 663 } 664 665 glxDraw = Xmalloc(sizeof(*glxDraw)); 666 if (!glxDraw) 667 return None; 668 669 /* Send the glXCreateGLXPixmap request */ 670 LockDisplay(dpy); 671 GetReq(GLXCreateGLXPixmap, req); 672 req->reqType = opcode; 673 req->glxCode = X_GLXCreateGLXPixmap; 674 req->screen = vis->screen; 675 req->visual = vis->visualid; 676 req->pixmap = pixmap; 677 req->glxpixmap = xid = XAllocID(dpy); 678 UnlockDisplay(dpy); 679 SyncHandle(); 680 681 if (InitGLXDrawable(dpy, glxDraw, pixmap, req->glxpixmap)) { 682 free(glxDraw); 683 return None; 684 } 685 686#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) 687 do { 688 /* FIXME: Maybe delay __DRIdrawable creation until the drawable 689 * is actually bound to a context... */ 690 691 struct glx_display *const priv = __glXInitialize(dpy); 692 __GLXDRIdrawable *pdraw; 693 struct glx_screen *psc; 694 struct glx_config *config; 695 696 psc = priv->screens[vis->screen]; 697 if (psc->driScreen == NULL) 698 return xid; 699 700 config = glx_config_find_visual(psc->visuals, vis->visualid); 701 pdraw = psc->driScreen->createDrawable(psc, pixmap, xid, config); 702 if (pdraw == NULL) { 703 fprintf(stderr, "failed to create pixmap\n"); 704 xid = None; 705 break; 706 } 707 708 if (__glxHashInsert(priv->drawHash, xid, pdraw)) { 709 (*pdraw->destroyDrawable) (pdraw); 710 xid = None; 711 break; 712 } 713 } while (0); 714 715 if (xid == None) { 716 xGLXDestroyGLXPixmapReq *dreq; 717 LockDisplay(dpy); 718 GetReq(GLXDestroyGLXPixmap, dreq); 719 dreq->reqType = opcode; 720 dreq->glxCode = X_GLXDestroyGLXPixmap; 721 dreq->glxpixmap = xid; 722 UnlockDisplay(dpy); 723 SyncHandle(); 724 } 725#endif 726 727 return xid; 728#endif 729} 730 731/* 732** Destroy the named pixmap 733*/ 734_X_EXPORT void 735glXDestroyGLXPixmap(Display * dpy, GLXPixmap glxpixmap) 736{ 737#ifdef GLX_USE_APPLEGL 738 if(apple_glx_pixmap_destroy(dpy, glxpixmap)) 739 __glXSendError(dpy, GLXBadPixmap, glxpixmap, X_GLXDestroyPixmap, false); 740#else 741 xGLXDestroyGLXPixmapReq *req; 742 CARD8 opcode; 743 744 opcode = __glXSetupForCommand(dpy); 745 if (!opcode) { 746 return; 747 } 748 749 /* Send the glXDestroyGLXPixmap request */ 750 LockDisplay(dpy); 751 GetReq(GLXDestroyGLXPixmap, req); 752 req->reqType = opcode; 753 req->glxCode = X_GLXDestroyGLXPixmap; 754 req->glxpixmap = glxpixmap; 755 UnlockDisplay(dpy); 756 SyncHandle(); 757 758 DestroyGLXDrawable(dpy, glxpixmap); 759 760#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) 761 { 762 struct glx_display *const priv = __glXInitialize(dpy); 763 __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, glxpixmap); 764 765 if (pdraw != NULL) { 766 (*pdraw->destroyDrawable) (pdraw); 767 __glxHashDelete(priv->drawHash, glxpixmap); 768 } 769 } 770#endif 771#endif /* GLX_USE_APPLEGL */ 772} 773 774_X_EXPORT void 775glXSwapBuffers(Display * dpy, GLXDrawable drawable) 776{ 777#ifdef GLX_USE_APPLEGL 778 struct glx_context * gc = __glXGetCurrentContext(); 779 if(gc && apple_glx_is_current_drawable(dpy, gc->driContext, drawable)) { 780 apple_glx_swap_buffers(gc->driContext); 781 } else { 782 __glXSendError(dpy, GLXBadCurrentWindow, 0, X_GLXSwapBuffers, false); 783 } 784#else 785 struct glx_context *gc; 786 GLXContextTag tag; 787 CARD8 opcode; 788#ifdef USE_XCB 789 xcb_connection_t *c; 790#else 791 xGLXSwapBuffersReq *req; 792#endif 793 794 gc = __glXGetCurrentContext(); 795 796#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) 797 __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable); 798 799 if (pdraw != NULL) { 800 if (gc && drawable == gc->currentDrawable) { 801 glFlush(); 802 } 803 804 (*pdraw->psc->driScreen->swapBuffers)(pdraw, 0, 0, 0); 805 return; 806 } 807#endif 808 809 opcode = __glXSetupForCommand(dpy); 810 if (!opcode) { 811 return; 812 } 813 814 /* 815 ** The calling thread may or may not have a current context. If it 816 ** does, send the context tag so the server can do a flush. 817 */ 818 if ((gc != NULL) && (dpy == gc->currentDpy) && 819 ((drawable == gc->currentDrawable) 820 || (drawable == gc->currentReadable))) { 821 tag = gc->currentContextTag; 822 } 823 else { 824 tag = 0; 825 } 826 827#ifdef USE_XCB 828 c = XGetXCBConnection(dpy); 829 xcb_glx_swap_buffers(c, tag, drawable); 830 xcb_flush(c); 831#else 832 /* Send the glXSwapBuffers request */ 833 LockDisplay(dpy); 834 GetReq(GLXSwapBuffers, req); 835 req->reqType = opcode; 836 req->glxCode = X_GLXSwapBuffers; 837 req->drawable = drawable; 838 req->contextTag = tag; 839 UnlockDisplay(dpy); 840 SyncHandle(); 841 XFlush(dpy); 842#endif /* USE_XCB */ 843#endif /* GLX_USE_APPLEGL */ 844} 845 846 847/* 848** Return configuration information for the given display, screen and 849** visual combination. 850*/ 851_X_EXPORT int 852glXGetConfig(Display * dpy, XVisualInfo * vis, int attribute, 853 int *value_return) 854{ 855 struct glx_display *priv; 856 struct glx_screen *psc; 857 struct glx_config *config; 858 int status; 859 860 status = GetGLXPrivScreenConfig(dpy, vis->screen, &priv, &psc); 861 if (status == Success) { 862 config = glx_config_find_visual(psc->visuals, vis->visualid); 863 864 /* Lookup attribute after first finding a match on the visual */ 865 if (config != NULL) { 866 return glx_config_get(config, attribute, value_return); 867 } 868 869 status = GLX_BAD_VISUAL; 870 } 871 872 /* 873 ** If we can't find the config for this visual, this visual is not 874 ** supported by the OpenGL implementation on the server. 875 */ 876 if ((status == GLX_BAD_VISUAL) && (attribute == GLX_USE_GL)) { 877 *value_return = GL_FALSE; 878 status = Success; 879 } 880 881 return status; 882} 883 884/************************************************************************/ 885 886static void 887init_fbconfig_for_chooser(struct glx_config * config, 888 GLboolean fbconfig_style_tags) 889{ 890 memset(config, 0, sizeof(struct glx_config)); 891 config->visualID = (XID) GLX_DONT_CARE; 892 config->visualType = GLX_DONT_CARE; 893 894 /* glXChooseFBConfig specifies different defaults for these two than 895 * glXChooseVisual. 896 */ 897 if (fbconfig_style_tags) { 898 config->rgbMode = GL_TRUE; 899 config->doubleBufferMode = GLX_DONT_CARE; 900 } 901 902 config->visualRating = GLX_DONT_CARE; 903 config->transparentPixel = GLX_NONE; 904 config->transparentRed = GLX_DONT_CARE; 905 config->transparentGreen = GLX_DONT_CARE; 906 config->transparentBlue = GLX_DONT_CARE; 907 config->transparentAlpha = GLX_DONT_CARE; 908 config->transparentIndex = GLX_DONT_CARE; 909 910 config->drawableType = GLX_WINDOW_BIT; 911 config->renderType = 912 (config->rgbMode) ? GLX_RGBA_BIT : GLX_COLOR_INDEX_BIT; 913 config->xRenderable = GLX_DONT_CARE; 914 config->fbconfigID = (GLXFBConfigID) (GLX_DONT_CARE); 915 916 config->swapMethod = GLX_DONT_CARE; 917} 918 919#define MATCH_DONT_CARE( param ) \ 920 do { \ 921 if ( ((int) a-> param != (int) GLX_DONT_CARE) \ 922 && (a-> param != b-> param) ) { \ 923 return False; \ 924 } \ 925 } while ( 0 ) 926 927#define MATCH_MINIMUM( param ) \ 928 do { \ 929 if ( ((int) a-> param != (int) GLX_DONT_CARE) \ 930 && (a-> param > b-> param) ) { \ 931 return False; \ 932 } \ 933 } while ( 0 ) 934 935#define MATCH_EXACT( param ) \ 936 do { \ 937 if ( a-> param != b-> param) { \ 938 return False; \ 939 } \ 940 } while ( 0 ) 941 942/* Test that all bits from a are contained in b */ 943#define MATCH_MASK(param) \ 944 do { \ 945 if ((a->param & ~b->param) != 0) \ 946 return False; \ 947 } while (0); 948 949/** 950 * Determine if two GLXFBConfigs are compatible. 951 * 952 * \param a Application specified config to test. 953 * \param b Server specified config to test against \c a. 954 */ 955static Bool 956fbconfigs_compatible(const struct glx_config * const a, 957 const struct glx_config * const b) 958{ 959 MATCH_DONT_CARE(doubleBufferMode); 960 MATCH_DONT_CARE(visualType); 961 MATCH_DONT_CARE(visualRating); 962 MATCH_DONT_CARE(xRenderable); 963 MATCH_DONT_CARE(fbconfigID); 964 MATCH_DONT_CARE(swapMethod); 965 966 MATCH_MINIMUM(rgbBits); 967 MATCH_MINIMUM(numAuxBuffers); 968 MATCH_MINIMUM(redBits); 969 MATCH_MINIMUM(greenBits); 970 MATCH_MINIMUM(blueBits); 971 MATCH_MINIMUM(alphaBits); 972 MATCH_MINIMUM(depthBits); 973 MATCH_MINIMUM(stencilBits); 974 MATCH_MINIMUM(accumRedBits); 975 MATCH_MINIMUM(accumGreenBits); 976 MATCH_MINIMUM(accumBlueBits); 977 MATCH_MINIMUM(accumAlphaBits); 978 MATCH_MINIMUM(sampleBuffers); 979 MATCH_MINIMUM(maxPbufferWidth); 980 MATCH_MINIMUM(maxPbufferHeight); 981 MATCH_MINIMUM(maxPbufferPixels); 982 MATCH_MINIMUM(samples); 983 984 MATCH_DONT_CARE(stereoMode); 985 MATCH_EXACT(level); 986 987 MATCH_MASK(drawableType); 988 MATCH_MASK(renderType); 989 990 /* There is a bug in a few of the XFree86 DDX drivers. They contain 991 * visuals with a "transparent type" of 0 when they really mean GLX_NONE. 992 * Technically speaking, it is a bug in the DDX driver, but there is 993 * enough of an installed base to work around the problem here. In any 994 * case, 0 is not a valid value of the transparent type, so we'll treat 0 995 * from the app as GLX_DONT_CARE. We'll consider GLX_NONE from the app and 996 * 0 from the server to be a match to maintain backward compatibility with 997 * the (broken) drivers. 998 */ 999 1000 if (a->transparentPixel != (int) GLX_DONT_CARE && a->transparentPixel != 0) { 1001 if (a->transparentPixel == GLX_NONE) { 1002 if (b->transparentPixel != GLX_NONE && b->transparentPixel != 0) 1003 return False; 1004 } 1005 else { 1006 MATCH_EXACT(transparentPixel); 1007 } 1008 1009 switch (a->transparentPixel) { 1010 case GLX_TRANSPARENT_RGB: 1011 MATCH_DONT_CARE(transparentRed); 1012 MATCH_DONT_CARE(transparentGreen); 1013 MATCH_DONT_CARE(transparentBlue); 1014 MATCH_DONT_CARE(transparentAlpha); 1015 break; 1016 1017 case GLX_TRANSPARENT_INDEX: 1018 MATCH_DONT_CARE(transparentIndex); 1019 break; 1020 1021 default: 1022 break; 1023 } 1024 } 1025 1026 return True; 1027} 1028 1029 1030/* There's some trickly language in the GLX spec about how this is supposed 1031 * to work. Basically, if a given component size is either not specified 1032 * or the requested size is zero, it is supposed to act like PERFER_SMALLER. 1033 * Well, that's really hard to do with the code as-is. This behavior is 1034 * closer to correct, but still not technically right. 1035 */ 1036#define PREFER_LARGER_OR_ZERO(comp) \ 1037 do { \ 1038 if ( ((*a)-> comp) != ((*b)-> comp) ) { \ 1039 if ( ((*a)-> comp) == 0 ) { \ 1040 return -1; \ 1041 } \ 1042 else if ( ((*b)-> comp) == 0 ) { \ 1043 return 1; \ 1044 } \ 1045 else { \ 1046 return ((*b)-> comp) - ((*a)-> comp) ; \ 1047 } \ 1048 } \ 1049 } while( 0 ) 1050 1051#define PREFER_LARGER(comp) \ 1052 do { \ 1053 if ( ((*a)-> comp) != ((*b)-> comp) ) { \ 1054 return ((*b)-> comp) - ((*a)-> comp) ; \ 1055 } \ 1056 } while( 0 ) 1057 1058#define PREFER_SMALLER(comp) \ 1059 do { \ 1060 if ( ((*a)-> comp) != ((*b)-> comp) ) { \ 1061 return ((*a)-> comp) - ((*b)-> comp) ; \ 1062 } \ 1063 } while( 0 ) 1064 1065/** 1066 * Compare two GLXFBConfigs. This function is intended to be used as the 1067 * compare function passed in to qsort. 1068 * 1069 * \returns If \c a is a "better" config, according to the specification of 1070 * SGIX_fbconfig, a number less than zero is returned. If \c b is 1071 * better, then a number greater than zero is return. If both are 1072 * equal, zero is returned. 1073 * \sa qsort, glXChooseVisual, glXChooseFBConfig, glXChooseFBConfigSGIX 1074 */ 1075static int 1076fbconfig_compare(struct glx_config **a, struct glx_config **b) 1077{ 1078 /* The order of these comparisons must NOT change. It is defined by 1079 * the GLX 1.3 spec and ARB_multisample. 1080 */ 1081 1082 PREFER_SMALLER(visualSelectGroup); 1083 1084 /* The sort order for the visualRating is GLX_NONE, GLX_SLOW, and 1085 * GLX_NON_CONFORMANT_CONFIG. It just so happens that this is the 1086 * numerical sort order of the enums (0x8000, 0x8001, and 0x800D). 1087 */ 1088 PREFER_SMALLER(visualRating); 1089 1090 /* This isn't quite right. It is supposed to compare the sum of the 1091 * components the user specifically set minimums for. 1092 */ 1093 PREFER_LARGER_OR_ZERO(redBits); 1094 PREFER_LARGER_OR_ZERO(greenBits); 1095 PREFER_LARGER_OR_ZERO(blueBits); 1096 PREFER_LARGER_OR_ZERO(alphaBits); 1097 1098 PREFER_SMALLER(rgbBits); 1099 1100 if (((*a)->doubleBufferMode != (*b)->doubleBufferMode)) { 1101 /* Prefer single-buffer. 1102 */ 1103 return (!(*a)->doubleBufferMode) ? -1 : 1; 1104 } 1105 1106 PREFER_SMALLER(numAuxBuffers); 1107 1108 PREFER_LARGER_OR_ZERO(depthBits); 1109 PREFER_SMALLER(stencilBits); 1110 1111 /* This isn't quite right. It is supposed to compare the sum of the 1112 * components the user specifically set minimums for. 1113 */ 1114 PREFER_LARGER_OR_ZERO(accumRedBits); 1115 PREFER_LARGER_OR_ZERO(accumGreenBits); 1116 PREFER_LARGER_OR_ZERO(accumBlueBits); 1117 PREFER_LARGER_OR_ZERO(accumAlphaBits); 1118 1119 PREFER_SMALLER(visualType); 1120 1121 /* None of the multisample specs say where this comparison should happen, 1122 * so I put it near the end. 1123 */ 1124 PREFER_SMALLER(sampleBuffers); 1125 PREFER_SMALLER(samples); 1126 1127 /* None of the pbuffer or fbconfig specs say that this comparison needs 1128 * to happen at all, but it seems like it should. 1129 */ 1130 PREFER_LARGER(maxPbufferWidth); 1131 PREFER_LARGER(maxPbufferHeight); 1132 PREFER_LARGER(maxPbufferPixels); 1133 1134 return 0; 1135} 1136 1137 1138/** 1139 * Selects and sorts a subset of the supplied configs based on the attributes. 1140 * This function forms to basis of \c glXChooseVisual, \c glXChooseFBConfig, 1141 * and \c glXChooseFBConfigSGIX. 1142 * 1143 * \param configs Array of pointers to possible configs. The elements of 1144 * this array that do not meet the criteria will be set to 1145 * NULL. The remaining elements will be sorted according to 1146 * the various visual / FBConfig selection rules. 1147 * \param num_configs Number of elements in the \c configs array. 1148 * \param attribList Attributes used select from \c configs. This array is 1149 * terminated by a \c None tag. The array can either take 1150 * the form expected by \c glXChooseVisual (where boolean 1151 * tags do not have a value) or by \c glXChooseFBConfig 1152 * (where every tag has a value). 1153 * \param fbconfig_style_tags Selects whether \c attribList is in 1154 * \c glXChooseVisual style or 1155 * \c glXChooseFBConfig style. 1156 * \returns The number of valid elements left in \c configs. 1157 * 1158 * \sa glXChooseVisual, glXChooseFBConfig, glXChooseFBConfigSGIX 1159 */ 1160static int 1161choose_visual(struct glx_config ** configs, int num_configs, 1162 const int *attribList, GLboolean fbconfig_style_tags) 1163{ 1164 struct glx_config test_config; 1165 int base; 1166 int i; 1167 1168 /* This is a fairly direct implementation of the selection method 1169 * described by GLX_SGIX_fbconfig. Start by culling out all the 1170 * configs that are not compatible with the selected parameter 1171 * list. 1172 */ 1173 1174 init_fbconfig_for_chooser(&test_config, fbconfig_style_tags); 1175 __glXInitializeVisualConfigFromTags(&test_config, 512, 1176 (const INT32 *) attribList, 1177 GL_TRUE, fbconfig_style_tags); 1178 1179 base = 0; 1180 for (i = 0; i < num_configs; i++) { 1181 if (fbconfigs_compatible(&test_config, configs[i])) { 1182 configs[base] = configs[i]; 1183 base++; 1184 } 1185 } 1186 1187 if (base == 0) { 1188 return 0; 1189 } 1190 1191 if (base < num_configs) { 1192 (void) memset(&configs[base], 0, sizeof(void *) * (num_configs - base)); 1193 } 1194 1195 /* After the incompatible configs are removed, the resulting 1196 * list is sorted according to the rules set out in the various 1197 * specifications. 1198 */ 1199 1200 qsort(configs, base, sizeof(struct glx_config *), 1201 (int (*)(const void *, const void *)) fbconfig_compare); 1202 return base; 1203} 1204 1205 1206 1207 1208/* 1209** Return the visual that best matches the template. Return None if no 1210** visual matches the template. 1211*/ 1212_X_EXPORT XVisualInfo * 1213glXChooseVisual(Display * dpy, int screen, int *attribList) 1214{ 1215 XVisualInfo *visualList = NULL; 1216 struct glx_display *priv; 1217 struct glx_screen *psc; 1218 struct glx_config test_config; 1219 struct glx_config *config; 1220 struct glx_config *best_config = NULL; 1221 1222 /* 1223 ** Get a list of all visuals, return if list is empty 1224 */ 1225 if (GetGLXPrivScreenConfig(dpy, screen, &priv, &psc) != Success) { 1226 return None; 1227 } 1228 1229 1230 /* 1231 ** Build a template from the defaults and the attribute list 1232 ** Free visual list and return if an unexpected token is encountered 1233 */ 1234 init_fbconfig_for_chooser(&test_config, GL_FALSE); 1235 __glXInitializeVisualConfigFromTags(&test_config, 512, 1236 (const INT32 *) attribList, 1237 GL_TRUE, GL_FALSE); 1238 1239 /* 1240 ** Eliminate visuals that don't meet minimum requirements 1241 ** Compute a score for those that do 1242 ** Remember which visual, if any, got the highest score 1243 ** If no visual is acceptable, return None 1244 ** Otherwise, create an XVisualInfo list with just the selected X visual 1245 ** and return this. 1246 */ 1247 for (config = psc->visuals; config != NULL; config = config->next) { 1248 if (fbconfigs_compatible(&test_config, config) 1249 && ((best_config == NULL) || 1250 (fbconfig_compare (&config, &best_config) < 0))) { 1251 XVisualInfo visualTemplate; 1252 XVisualInfo *newList; 1253 int i; 1254 1255 visualTemplate.screen = screen; 1256 visualTemplate.visualid = config->visualID; 1257 newList = XGetVisualInfo(dpy, VisualScreenMask | VisualIDMask, 1258 &visualTemplate, &i); 1259 1260 if (newList) { 1261 Xfree(visualList); 1262 visualList = newList; 1263 best_config = config; 1264 } 1265 } 1266 } 1267 1268#ifdef GLX_USE_APPLEGL 1269 if(visualList && getenv("LIBGL_DUMP_VISUALID")) { 1270 printf("visualid 0x%lx\n", visualList[0].visualid); 1271 } 1272#endif 1273 1274 return visualList; 1275} 1276 1277 1278_X_EXPORT const char * 1279glXQueryExtensionsString(Display * dpy, int screen) 1280{ 1281 struct glx_screen *psc; 1282 struct glx_display *priv; 1283 1284 if (GetGLXPrivScreenConfig(dpy, screen, &priv, &psc) != Success) { 1285 return NULL; 1286 } 1287 1288 if (!psc->effectiveGLXexts) { 1289 if (!psc->serverGLXexts) { 1290 psc->serverGLXexts = 1291 __glXQueryServerString(dpy, priv->majorOpcode, screen, 1292 GLX_EXTENSIONS); 1293 } 1294 1295 __glXCalculateUsableExtensions(psc, 1296#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) 1297 (psc->driScreen != NULL), 1298#else 1299 GL_FALSE, 1300#endif 1301 priv->minorVersion); 1302 } 1303 1304 return psc->effectiveGLXexts; 1305} 1306 1307_X_EXPORT const char * 1308glXGetClientString(Display * dpy, int name) 1309{ 1310 (void) dpy; 1311 1312 switch (name) { 1313 case GLX_VENDOR: 1314 return (__glXGLXClientVendorName); 1315 case GLX_VERSION: 1316 return (__glXGLXClientVersion); 1317 case GLX_EXTENSIONS: 1318 return (__glXGetClientExtensions()); 1319 default: 1320 return NULL; 1321 } 1322} 1323 1324_X_EXPORT const char * 1325glXQueryServerString(Display * dpy, int screen, int name) 1326{ 1327 struct glx_screen *psc; 1328 struct glx_display *priv; 1329 const char **str; 1330 1331 1332 if (GetGLXPrivScreenConfig(dpy, screen, &priv, &psc) != Success) { 1333 return NULL; 1334 } 1335 1336 switch (name) { 1337 case GLX_VENDOR: 1338 str = &priv->serverGLXvendor; 1339 break; 1340 case GLX_VERSION: 1341 str = &priv->serverGLXversion; 1342 break; 1343 case GLX_EXTENSIONS: 1344 str = &psc->serverGLXexts; 1345 break; 1346 default: 1347 return NULL; 1348 } 1349 1350 if (*str == NULL) { 1351 *str = __glXQueryServerString(dpy, priv->majorOpcode, screen, name); 1352 } 1353 1354 return *str; 1355} 1356 1357void 1358__glXClientInfo(Display * dpy, int opcode) 1359{ 1360 char *ext_str = __glXGetClientGLExtensionString(); 1361 int size = strlen(ext_str) + 1; 1362 1363#ifdef USE_XCB 1364 xcb_connection_t *c = XGetXCBConnection(dpy); 1365 xcb_glx_client_info(c, 1366 GLX_MAJOR_VERSION, GLX_MINOR_VERSION, size, ext_str); 1367#else 1368 xGLXClientInfoReq *req; 1369 1370 /* Send the glXClientInfo request */ 1371 LockDisplay(dpy); 1372 GetReq(GLXClientInfo, req); 1373 req->reqType = opcode; 1374 req->glxCode = X_GLXClientInfo; 1375 req->major = GLX_MAJOR_VERSION; 1376 req->minor = GLX_MINOR_VERSION; 1377 1378 req->length += (size + 3) >> 2; 1379 req->numbytes = size; 1380 Data(dpy, ext_str, size); 1381 1382 UnlockDisplay(dpy); 1383 SyncHandle(); 1384#endif /* USE_XCB */ 1385 1386 Xfree(ext_str); 1387} 1388 1389 1390/* 1391** EXT_import_context 1392*/ 1393 1394_X_EXPORT Display * 1395glXGetCurrentDisplay(void) 1396{ 1397 struct glx_context *gc = __glXGetCurrentContext(); 1398 if (NULL == gc) 1399 return NULL; 1400 return gc->currentDpy; 1401} 1402 1403_X_EXPORT 1404GLX_ALIAS(Display *, glXGetCurrentDisplayEXT, (void), (), 1405 glXGetCurrentDisplay) 1406 1407#ifndef GLX_USE_APPLEGL 1408_X_EXPORT GLXContext 1409glXImportContextEXT(Display *dpy, GLXContextID contextID) 1410{ 1411 struct glx_display *priv = __glXInitialize(dpy); 1412 struct glx_screen *psc; 1413 xGLXQueryContextReply reply; 1414 CARD8 opcode; 1415 struct glx_context *ctx; 1416 int propList[__GLX_MAX_CONTEXT_PROPS * 2], *pProp, nPropListBytes; 1417 int i, renderType; 1418 XID share; 1419 struct glx_config *mode; 1420 1421 if (contextID == None || __glXIsDirect(dpy, contextID)) 1422 return NULL; 1423 1424 opcode = __glXSetupForCommand(dpy); 1425 if (!opcode) 1426 return 0; 1427 1428 /* Send the glXQueryContextInfoEXT request */ 1429 LockDisplay(dpy); 1430 1431 if (priv->majorVersion > 1 || priv->minorVersion >= 3) { 1432 xGLXQueryContextReq *req; 1433 1434 GetReq(GLXQueryContext, req); 1435 1436 req->reqType = opcode; 1437 req->glxCode = X_GLXQueryContext; 1438 req->context = contextID; 1439 } 1440 else { 1441 xGLXVendorPrivateReq *vpreq; 1442 xGLXQueryContextInfoEXTReq *req; 1443 1444 GetReqExtra(GLXVendorPrivate, 1445 sz_xGLXQueryContextInfoEXTReq - sz_xGLXVendorPrivateReq, 1446 vpreq); 1447 req = (xGLXQueryContextInfoEXTReq *) vpreq; 1448 req->reqType = opcode; 1449 req->glxCode = X_GLXVendorPrivateWithReply; 1450 req->vendorCode = X_GLXvop_QueryContextInfoEXT; 1451 req->context = contextID; 1452 } 1453 1454 _XReply(dpy, (xReply *) & reply, 0, False); 1455 1456 if (reply.n <= __GLX_MAX_CONTEXT_PROPS) 1457 nPropListBytes = reply.n * 2 * sizeof propList[0]; 1458 else 1459 nPropListBytes = 0; 1460 _XRead(dpy, (char *) propList, nPropListBytes); 1461 UnlockDisplay(dpy); 1462 SyncHandle(); 1463 1464 /* Look up screen first so we can look up visuals/fbconfigs later */ 1465 psc = NULL; 1466 for (i = 0, pProp = propList; i < reply.n; i++, pProp += 2) 1467 if (pProp[0] == GLX_SCREEN) 1468 psc = GetGLXScreenConfigs(dpy, pProp[1]); 1469 if (psc == NULL) 1470 return NULL; 1471 1472 share = None; 1473 mode = NULL; 1474 renderType = 0; 1475 pProp = propList; 1476 1477 for (i = 0, pProp = propList; i < reply.n; i++, pProp += 2) 1478 switch (pProp[0]) { 1479 case GLX_SHARE_CONTEXT_EXT: 1480 share = pProp[1]; 1481 break; 1482 case GLX_VISUAL_ID_EXT: 1483 mode = glx_config_find_visual(psc->visuals, pProp[1]); 1484 break; 1485 case GLX_FBCONFIG_ID: 1486 mode = glx_config_find_fbconfig(psc->configs, pProp[1]); 1487 break; 1488 case GLX_RENDER_TYPE: 1489 renderType = pProp[1]; 1490 break; 1491 } 1492 1493 if (mode == NULL) 1494 return NULL; 1495 1496 ctx = indirect_create_context(psc, mode, NULL, renderType); 1497 if (ctx == NULL) 1498 return NULL; 1499 1500 ctx->xid = contextID; 1501 ctx->imported = GL_TRUE; 1502 ctx->share_xid = share; 1503 1504 return (GLXContext) ctx; 1505} 1506 1507#endif 1508 1509_X_EXPORT int 1510glXQueryContext(Display * dpy, GLXContext ctx_user, int attribute, int *value) 1511{ 1512 struct glx_context *ctx = (struct glx_context *) ctx_user; 1513 1514 switch (attribute) { 1515 case GLX_SHARE_CONTEXT_EXT: 1516 *value = ctx->share_xid; 1517 break; 1518 case GLX_VISUAL_ID_EXT: 1519 *value = ctx->config ? ctx->config->visualID : None; 1520 break; 1521 case GLX_SCREEN: 1522 *value = ctx->screen; 1523 break; 1524 case GLX_FBCONFIG_ID: 1525 *value = ctx->config ? ctx->config->fbconfigID : None; 1526 break; 1527 case GLX_RENDER_TYPE: 1528 *value = ctx->renderType; 1529 break; 1530 default: 1531 return GLX_BAD_ATTRIBUTE; 1532 } 1533 return Success; 1534} 1535 1536_X_EXPORT 1537GLX_ALIAS(int, glXQueryContextInfoEXT, 1538 (Display * dpy, GLXContext ctx, int attribute, int *value), 1539 (dpy, ctx, attribute, value), glXQueryContext) 1540 1541_X_EXPORT GLXContextID glXGetContextIDEXT(const GLXContext ctx_user) 1542{ 1543 struct glx_context *ctx = (struct glx_context *) ctx_user; 1544 1545 return ctx->xid; 1546} 1547 1548_X_EXPORT 1549GLX_ALIAS_VOID(glXFreeContextEXT, (Display *dpy, GLXContext ctx), (dpy, ctx), 1550 glXDestroyContext); 1551 1552_X_EXPORT GLXFBConfig * 1553glXChooseFBConfig(Display * dpy, int screen, 1554 const int *attribList, int *nitems) 1555{ 1556 struct glx_config **config_list; 1557 int list_size; 1558 1559 1560 config_list = (struct glx_config **) 1561 glXGetFBConfigs(dpy, screen, &list_size); 1562 1563 if ((config_list != NULL) && (list_size > 0) && (attribList != NULL)) { 1564 list_size = choose_visual(config_list, list_size, attribList, GL_TRUE); 1565 if (list_size == 0) { 1566 XFree(config_list); 1567 config_list = NULL; 1568 } 1569 } 1570 1571 *nitems = list_size; 1572 return (GLXFBConfig *) config_list; 1573} 1574 1575 1576_X_EXPORT GLXContext 1577glXCreateNewContext(Display * dpy, GLXFBConfig fbconfig, 1578 int renderType, GLXContext shareList, Bool allowDirect) 1579{ 1580 struct glx_config *config = (struct glx_config *) fbconfig; 1581 1582 return CreateContext(dpy, config->fbconfigID, config, shareList, 1583 allowDirect, X_GLXCreateNewContext, renderType, 1584 config->screen); 1585} 1586 1587 1588_X_EXPORT GLXDrawable 1589glXGetCurrentReadDrawable(void) 1590{ 1591 struct glx_context *gc = __glXGetCurrentContext(); 1592 1593 return gc->currentReadable; 1594} 1595 1596 1597_X_EXPORT GLXFBConfig * 1598glXGetFBConfigs(Display * dpy, int screen, int *nelements) 1599{ 1600 struct glx_display *priv = __glXInitialize(dpy); 1601 struct glx_config **config_list = NULL; 1602 struct glx_config *config; 1603 unsigned num_configs = 0; 1604 int i; 1605 1606 *nelements = 0; 1607 if (priv && (priv->screens != NULL) 1608 && (screen >= 0) && (screen <= ScreenCount(dpy)) 1609 && (priv->screens[screen]->configs != NULL) 1610 && (priv->screens[screen]->configs->fbconfigID 1611 != (int) GLX_DONT_CARE)) { 1612 1613 for (config = priv->screens[screen]->configs; config != NULL; 1614 config = config->next) { 1615 if (config->fbconfigID != (int) GLX_DONT_CARE) { 1616 num_configs++; 1617 } 1618 } 1619 1620 config_list = Xmalloc(num_configs * sizeof *config_list); 1621 if (config_list != NULL) { 1622 *nelements = num_configs; 1623 i = 0; 1624 for (config = priv->screens[screen]->configs; config != NULL; 1625 config = config->next) { 1626 if (config->fbconfigID != (int) GLX_DONT_CARE) { 1627 config_list[i] = config; 1628 i++; 1629 } 1630 } 1631 } 1632 } 1633 1634 return (GLXFBConfig *) config_list; 1635} 1636 1637 1638_X_EXPORT int 1639glXGetFBConfigAttrib(Display * dpy, GLXFBConfig fbconfig, 1640 int attribute, int *value) 1641{ 1642 struct glx_config *config = ValidateGLXFBConfig(dpy, fbconfig); 1643 1644 if (config == NULL) 1645 return GLXBadFBConfig; 1646 1647 return glx_config_get(config, attribute, value); 1648} 1649 1650 1651_X_EXPORT XVisualInfo * 1652glXGetVisualFromFBConfig(Display * dpy, GLXFBConfig fbconfig) 1653{ 1654 XVisualInfo visualTemplate; 1655 struct glx_config *config = (struct glx_config *) fbconfig; 1656 int count; 1657 1658 /* 1659 ** Get a list of all visuals, return if list is empty 1660 */ 1661 visualTemplate.visualid = config->visualID; 1662 return XGetVisualInfo(dpy, VisualIDMask, &visualTemplate, &count); 1663} 1664 1665#ifndef GLX_USE_APPLEGL 1666/* 1667** GLX_SGI_swap_control 1668*/ 1669static int 1670__glXSwapIntervalSGI(int interval) 1671{ 1672 xGLXVendorPrivateReq *req; 1673 struct glx_context *gc = __glXGetCurrentContext(); 1674 struct glx_screen *psc; 1675 Display *dpy; 1676 CARD32 *interval_ptr; 1677 CARD8 opcode; 1678 1679 if (gc == NULL) { 1680 return GLX_BAD_CONTEXT; 1681 } 1682 1683 if (interval <= 0) { 1684 return GLX_BAD_VALUE; 1685 } 1686 1687 psc = GetGLXScreenConfigs( gc->currentDpy, gc->screen); 1688 1689#ifdef GLX_DIRECT_RENDERING 1690 if (gc->isDirect && psc->driScreen && psc->driScreen->setSwapInterval) { 1691 __GLXDRIdrawable *pdraw = 1692 GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable); 1693 psc->driScreen->setSwapInterval(pdraw, interval); 1694 return 0; 1695 } 1696#endif 1697 1698 dpy = gc->currentDpy; 1699 opcode = __glXSetupForCommand(dpy); 1700 if (!opcode) { 1701 return 0; 1702 } 1703 1704 /* Send the glXSwapIntervalSGI request */ 1705 LockDisplay(dpy); 1706 GetReqExtra(GLXVendorPrivate, sizeof(CARD32), req); 1707 req->reqType = opcode; 1708 req->glxCode = X_GLXVendorPrivate; 1709 req->vendorCode = X_GLXvop_SwapIntervalSGI; 1710 req->contextTag = gc->currentContextTag; 1711 1712 interval_ptr = (CARD32 *) (req + 1); 1713 *interval_ptr = interval; 1714 1715 UnlockDisplay(dpy); 1716 SyncHandle(); 1717 XFlush(dpy); 1718 1719 return 0; 1720} 1721 1722 1723/* 1724** GLX_MESA_swap_control 1725*/ 1726static int 1727__glXSwapIntervalMESA(unsigned int interval) 1728{ 1729#ifdef GLX_DIRECT_RENDERING 1730 struct glx_context *gc = __glXGetCurrentContext(); 1731 1732 if (gc != NULL && gc->isDirect) { 1733 struct glx_screen *psc; 1734 1735 psc = GetGLXScreenConfigs( gc->currentDpy, gc->screen); 1736 if (psc->driScreen && psc->driScreen->setSwapInterval) { 1737 __GLXDRIdrawable *pdraw = 1738 GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable); 1739 return psc->driScreen->setSwapInterval(pdraw, interval); 1740 } 1741 } 1742#endif 1743 1744 return GLX_BAD_CONTEXT; 1745} 1746 1747 1748static int 1749__glXGetSwapIntervalMESA(void) 1750{ 1751#ifdef GLX_DIRECT_RENDERING 1752 struct glx_context *gc = __glXGetCurrentContext(); 1753 1754 if (gc != NULL && gc->isDirect) { 1755 struct glx_screen *psc; 1756 1757 psc = GetGLXScreenConfigs( gc->currentDpy, gc->screen); 1758 if (psc->driScreen && psc->driScreen->getSwapInterval) { 1759 __GLXDRIdrawable *pdraw = 1760 GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable); 1761 return psc->driScreen->getSwapInterval(pdraw); 1762 } 1763 } 1764#endif 1765 1766 return 0; 1767} 1768 1769 1770/* 1771** GLX_SGI_video_sync 1772*/ 1773static int 1774__glXGetVideoSyncSGI(unsigned int *count) 1775{ 1776 int64_t ust, msc, sbc; 1777 int ret; 1778 struct glx_context *gc = __glXGetCurrentContext(); 1779 struct glx_screen *psc; 1780#ifdef GLX_DIRECT_RENDERING 1781 __GLXDRIdrawable *pdraw; 1782#endif 1783 1784 if (!gc) 1785 return GLX_BAD_CONTEXT; 1786 1787#ifdef GLX_DIRECT_RENDERING 1788 if (!gc->isDirect) 1789 return GLX_BAD_CONTEXT; 1790#endif 1791 1792 psc = GetGLXScreenConfigs(gc->currentDpy, gc->screen); 1793#ifdef GLX_DIRECT_RENDERING 1794 pdraw = GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable); 1795#endif 1796 1797 /* FIXME: Looking at the GLX_SGI_video_sync spec in the extension registry, 1798 * FIXME: there should be a GLX encoding for this call. I can find no 1799 * FIXME: documentation for the GLX encoding. 1800 */ 1801#ifdef GLX_DIRECT_RENDERING 1802 if (psc->driScreen && psc->driScreen->getDrawableMSC) { 1803 ret = psc->driScreen->getDrawableMSC(psc, pdraw, &ust, &msc, &sbc); 1804 *count = (unsigned) msc; 1805 return (ret == True) ? 0 : GLX_BAD_CONTEXT; 1806 } 1807#endif 1808 1809 return GLX_BAD_CONTEXT; 1810} 1811 1812static int 1813__glXWaitVideoSyncSGI(int divisor, int remainder, unsigned int *count) 1814{ 1815 struct glx_context *gc = __glXGetCurrentContext(); 1816 struct glx_screen *psc; 1817#ifdef GLX_DIRECT_RENDERING 1818 __GLXDRIdrawable *pdraw; 1819#endif 1820 int64_t ust, msc, sbc; 1821 int ret; 1822 1823 if (divisor <= 0 || remainder < 0) 1824 return GLX_BAD_VALUE; 1825 1826 if (!gc) 1827 return GLX_BAD_CONTEXT; 1828 1829#ifdef GLX_DIRECT_RENDERING 1830 if (!gc->isDirect) 1831 return GLX_BAD_CONTEXT; 1832#endif 1833 1834 psc = GetGLXScreenConfigs( gc->currentDpy, gc->screen); 1835#ifdef GLX_DIRECT_RENDERING 1836 pdraw = GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable); 1837#endif 1838 1839#ifdef GLX_DIRECT_RENDERING 1840 if (psc->driScreen && psc->driScreen->waitForMSC) { 1841 ret = psc->driScreen->waitForMSC(pdraw, 0, divisor, remainder, &ust, &msc, 1842 &sbc); 1843 *count = (unsigned) msc; 1844 return (ret == True) ? 0 : GLX_BAD_CONTEXT; 1845 } 1846#endif 1847 1848 return GLX_BAD_CONTEXT; 1849} 1850 1851#endif /* GLX_USE_APPLEGL */ 1852 1853/* 1854** GLX_SGIX_fbconfig 1855** Many of these functions are aliased to GLX 1.3 entry points in the 1856** GLX_functions table. 1857*/ 1858 1859_X_EXPORT 1860GLX_ALIAS(int, glXGetFBConfigAttribSGIX, 1861 (Display * dpy, GLXFBConfigSGIX config, int attribute, int *value), 1862 (dpy, config, attribute, value), glXGetFBConfigAttrib) 1863 1864_X_EXPORT GLX_ALIAS(GLXFBConfigSGIX *, glXChooseFBConfigSGIX, 1865 (Display * dpy, int screen, int *attrib_list, 1866 int *nelements), (dpy, screen, attrib_list, nelements), 1867 glXChooseFBConfig) 1868 1869_X_EXPORT GLX_ALIAS(XVisualInfo *, glXGetVisualFromFBConfigSGIX, 1870 (Display * dpy, GLXFBConfigSGIX config), 1871 (dpy, config), glXGetVisualFromFBConfig) 1872 1873_X_EXPORT GLXPixmap 1874glXCreateGLXPixmapWithConfigSGIX(Display * dpy, 1875 GLXFBConfigSGIX fbconfig, 1876 Pixmap pixmap) 1877{ 1878#ifndef GLX_USE_APPLEGL 1879 xGLXVendorPrivateWithReplyReq *vpreq; 1880 xGLXCreateGLXPixmapWithConfigSGIXReq *req; 1881 GLXPixmap xid = None; 1882 CARD8 opcode; 1883 struct glx_screen *psc; 1884#endif 1885 struct glx_config *config = (struct glx_config *) fbconfig; 1886 1887 1888 if ((dpy == NULL) || (config == NULL)) { 1889 return None; 1890 } 1891#ifdef GLX_USE_APPLEGL 1892 if(apple_glx_pixmap_create(dpy, config->screen, pixmap, config)) 1893 return None; 1894 return pixmap; 1895#else 1896 1897 psc = GetGLXScreenConfigs(dpy, config->screen); 1898 if ((psc != NULL) 1899 && __glXExtensionBitIsEnabled(psc, SGIX_fbconfig_bit)) { 1900 opcode = __glXSetupForCommand(dpy); 1901 if (!opcode) { 1902 return None; 1903 } 1904 1905 /* Send the glXCreateGLXPixmapWithConfigSGIX request */ 1906 LockDisplay(dpy); 1907 GetReqExtra(GLXVendorPrivateWithReply, 1908 sz_xGLXCreateGLXPixmapWithConfigSGIXReq - 1909 sz_xGLXVendorPrivateWithReplyReq, vpreq); 1910 req = (xGLXCreateGLXPixmapWithConfigSGIXReq *) vpreq; 1911 req->reqType = opcode; 1912 req->glxCode = X_GLXVendorPrivateWithReply; 1913 req->vendorCode = X_GLXvop_CreateGLXPixmapWithConfigSGIX; 1914 req->screen = config->screen; 1915 req->fbconfig = config->fbconfigID; 1916 req->pixmap = pixmap; 1917 req->glxpixmap = xid = XAllocID(dpy); 1918 UnlockDisplay(dpy); 1919 SyncHandle(); 1920 } 1921 1922 return xid; 1923#endif 1924} 1925 1926_X_EXPORT GLXContext 1927glXCreateContextWithConfigSGIX(Display * dpy, 1928 GLXFBConfigSGIX fbconfig, int renderType, 1929 GLXContext shareList, Bool allowDirect) 1930{ 1931 GLXContext gc = NULL; 1932 struct glx_config *config = (struct glx_config *) fbconfig; 1933 struct glx_screen *psc; 1934 1935 1936 if ((dpy == NULL) || (config == NULL)) { 1937 return None; 1938 } 1939 1940 psc = GetGLXScreenConfigs(dpy, config->screen); 1941 if ((psc != NULL) 1942 && __glXExtensionBitIsEnabled(psc, SGIX_fbconfig_bit)) { 1943 gc = CreateContext(dpy, config->fbconfigID, config, shareList, 1944 allowDirect, 1945 X_GLXvop_CreateContextWithConfigSGIX, renderType, 1946 config->screen); 1947 } 1948 1949 return gc; 1950} 1951 1952 1953_X_EXPORT GLXFBConfigSGIX 1954glXGetFBConfigFromVisualSGIX(Display * dpy, XVisualInfo * vis) 1955{ 1956 struct glx_display *priv; 1957 struct glx_screen *psc = NULL; 1958 1959 if ((GetGLXPrivScreenConfig(dpy, vis->screen, &priv, &psc) == Success) 1960 && __glXExtensionBitIsEnabled(psc, SGIX_fbconfig_bit) 1961 && (psc->configs->fbconfigID != (int) GLX_DONT_CARE)) { 1962 return (GLXFBConfigSGIX) glx_config_find_visual(psc->configs, 1963 vis->visualid); 1964 } 1965 1966 return NULL; 1967} 1968 1969#ifndef GLX_USE_APPLEGL 1970/* 1971** GLX_SGIX_swap_group 1972*/ 1973static void 1974__glXJoinSwapGroupSGIX(Display * dpy, GLXDrawable drawable, 1975 GLXDrawable member) 1976{ 1977 (void) dpy; 1978 (void) drawable; 1979 (void) member; 1980} 1981 1982 1983/* 1984** GLX_SGIX_swap_barrier 1985*/ 1986static void 1987__glXBindSwapBarrierSGIX(Display * dpy, GLXDrawable drawable, int barrier) 1988{ 1989 (void) dpy; 1990 (void) drawable; 1991 (void) barrier; 1992} 1993 1994static Bool 1995__glXQueryMaxSwapBarriersSGIX(Display * dpy, int screen, int *max) 1996{ 1997 (void) dpy; 1998 (void) screen; 1999 (void) max; 2000 return False; 2001} 2002 2003 2004/* 2005** GLX_OML_sync_control 2006*/ 2007static Bool 2008__glXGetSyncValuesOML(Display * dpy, GLXDrawable drawable, 2009 int64_t * ust, int64_t * msc, int64_t * sbc) 2010{ 2011 struct glx_display * const priv = __glXInitialize(dpy); 2012 int ret; 2013#ifdef GLX_DIRECT_RENDERING 2014 __GLXDRIdrawable *pdraw; 2015#endif 2016 struct glx_screen *psc; 2017 2018 if (!priv) 2019 return False; 2020 2021#ifdef GLX_DIRECT_RENDERING 2022 pdraw = GetGLXDRIDrawable(dpy, drawable); 2023 psc = pdraw ? pdraw->psc : NULL; 2024 if (pdraw && psc->driScreen->getDrawableMSC) { 2025 ret = psc->driScreen->getDrawableMSC(psc, pdraw, ust, msc, sbc); 2026 return ret; 2027 } 2028#endif 2029 2030 return False; 2031} 2032 2033#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) 2034_X_HIDDEN GLboolean 2035__glxGetMscRate(__GLXDRIdrawable *glxDraw, 2036 int32_t * numerator, int32_t * denominator) 2037{ 2038#ifdef XF86VIDMODE 2039 struct glx_screen *psc; 2040 XF86VidModeModeLine mode_line; 2041 int dot_clock; 2042 int i; 2043 2044 psc = glxDraw->psc; 2045 if (XF86VidModeQueryVersion(psc->dpy, &i, &i) && 2046 XF86VidModeGetModeLine(psc->dpy, psc->scr, &dot_clock, &mode_line)) { 2047 unsigned n = dot_clock * 1000; 2048 unsigned d = mode_line.vtotal * mode_line.htotal; 2049 2050# define V_INTERLACE 0x010 2051# define V_DBLSCAN 0x020 2052 2053 if (mode_line.flags & V_INTERLACE) 2054 n *= 2; 2055 else if (mode_line.flags & V_DBLSCAN) 2056 d *= 2; 2057 2058 /* The OML_sync_control spec requires that if the refresh rate is a 2059 * whole number, that the returned numerator be equal to the refresh 2060 * rate and the denominator be 1. 2061 */ 2062 2063 if (n % d == 0) { 2064 n /= d; 2065 d = 1; 2066 } 2067 else { 2068 static const unsigned f[] = { 13, 11, 7, 5, 3, 2, 0 }; 2069 2070 /* This is a poor man's way to reduce a fraction. It's far from 2071 * perfect, but it will work well enough for this situation. 2072 */ 2073 2074 for (i = 0; f[i] != 0; i++) { 2075 while (n % f[i] == 0 && d % f[i] == 0) { 2076 d /= f[i]; 2077 n /= f[i]; 2078 } 2079 } 2080 } 2081 2082 *numerator = n; 2083 *denominator = d; 2084 2085 return True; 2086 } 2087 else 2088#endif 2089 2090 return False; 2091} 2092#endif 2093 2094/** 2095 * Determine the refresh rate of the specified drawable and display. 2096 * 2097 * \param dpy Display whose refresh rate is to be determined. 2098 * \param drawable Drawable whose refresh rate is to be determined. 2099 * \param numerator Numerator of the refresh rate. 2100 * \param demoninator Denominator of the refresh rate. 2101 * \return If the refresh rate for the specified display and drawable could 2102 * be calculated, True is returned. Otherwise False is returned. 2103 * 2104 * \note This function is implemented entirely client-side. A lot of other 2105 * functionality is required to export GLX_OML_sync_control, so on 2106 * XFree86 this function can be called for direct-rendering contexts 2107 * when GLX_OML_sync_control appears in the client extension string. 2108 */ 2109 2110_X_HIDDEN GLboolean 2111__glXGetMscRateOML(Display * dpy, GLXDrawable drawable, 2112 int32_t * numerator, int32_t * denominator) 2113{ 2114#if defined( GLX_DIRECT_RENDERING ) && defined( XF86VIDMODE ) 2115 __GLXDRIdrawable *draw = GetGLXDRIDrawable(dpy, drawable); 2116 2117 if (draw == NULL) 2118 return False; 2119 2120 return __glxGetMscRate(draw, numerator, denominator); 2121#else 2122 (void) dpy; 2123 (void) drawable; 2124 (void) numerator; 2125 (void) denominator; 2126#endif 2127 return False; 2128} 2129 2130 2131static int64_t 2132__glXSwapBuffersMscOML(Display * dpy, GLXDrawable drawable, 2133 int64_t target_msc, int64_t divisor, int64_t remainder) 2134{ 2135 struct glx_context *gc = __glXGetCurrentContext(); 2136#ifdef GLX_DIRECT_RENDERING 2137 __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable); 2138 struct glx_screen *psc = pdraw ? pdraw->psc : NULL; 2139#endif 2140 2141 if (!gc) /* no GLX for this */ 2142 return -1; 2143 2144#ifdef GLX_DIRECT_RENDERING 2145 if (!pdraw || !gc->isDirect) 2146 return -1; 2147#endif 2148 2149 /* The OML_sync_control spec says these should "generate a GLX_BAD_VALUE 2150 * error", but it also says "It [glXSwapBuffersMscOML] will return a value 2151 * of -1 if the function failed because of errors detected in the input 2152 * parameters" 2153 */ 2154 if (divisor < 0 || remainder < 0 || target_msc < 0) 2155 return -1; 2156 if (divisor > 0 && remainder >= divisor) 2157 return -1; 2158 2159 if (target_msc == 0 && divisor == 0 && remainder == 0) 2160 remainder = 1; 2161 2162#ifdef GLX_DIRECT_RENDERING 2163 if (psc->driScreen && psc->driScreen->swapBuffers) 2164 return (*psc->driScreen->swapBuffers)(pdraw, target_msc, divisor, 2165 remainder); 2166#endif 2167 2168 return -1; 2169} 2170 2171 2172static Bool 2173__glXWaitForMscOML(Display * dpy, GLXDrawable drawable, 2174 int64_t target_msc, int64_t divisor, 2175 int64_t remainder, int64_t * ust, 2176 int64_t * msc, int64_t * sbc) 2177{ 2178#ifdef GLX_DIRECT_RENDERING 2179 __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable); 2180 struct glx_screen *psc = pdraw ? pdraw->psc : NULL; 2181 int ret; 2182#endif 2183 2184 2185 /* The OML_sync_control spec says these should "generate a GLX_BAD_VALUE 2186 * error", but the return type in the spec is Bool. 2187 */ 2188 if (divisor < 0 || remainder < 0 || target_msc < 0) 2189 return False; 2190 if (divisor > 0 && remainder >= divisor) 2191 return False; 2192 2193#ifdef GLX_DIRECT_RENDERING 2194 if (pdraw && psc->driScreen && psc->driScreen->waitForMSC) { 2195 ret = psc->driScreen->waitForMSC(pdraw, target_msc, divisor, remainder, 2196 ust, msc, sbc); 2197 return ret; 2198 } 2199#endif 2200 2201 return False; 2202} 2203 2204 2205static Bool 2206__glXWaitForSbcOML(Display * dpy, GLXDrawable drawable, 2207 int64_t target_sbc, int64_t * ust, 2208 int64_t * msc, int64_t * sbc) 2209{ 2210#ifdef GLX_DIRECT_RENDERING 2211 __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable); 2212 struct glx_screen *psc = pdraw ? pdraw->psc : NULL; 2213 int ret; 2214#endif 2215 2216 /* The OML_sync_control spec says this should "generate a GLX_BAD_VALUE 2217 * error", but the return type in the spec is Bool. 2218 */ 2219 if (target_sbc < 0) 2220 return False; 2221 2222#ifdef GLX_DIRECT_RENDERING 2223 if (pdraw && psc->driScreen && psc->driScreen->waitForSBC) { 2224 ret = psc->driScreen->waitForSBC(pdraw, target_sbc, ust, msc, sbc); 2225 return ret; 2226 } 2227#endif 2228 2229 return False; 2230} 2231 2232/*@}*/ 2233 2234 2235/** 2236 * Mesa extension stubs. These will help reduce portability problems. 2237 */ 2238/*@{*/ 2239 2240/** 2241 * Release all buffers associated with the specified GLX drawable. 2242 * 2243 * \todo 2244 * This function was intended for stand-alone Mesa. The issue there is that 2245 * the library doesn't get any notification when a window is closed. In 2246 * DRI there is a similar but slightly different issue. When GLX 1.3 is 2247 * supported, there are 3 different functions to destroy a drawable. It 2248 * should be possible to create GLX protocol (or have it determine which 2249 * protocol to use based on the type of the drawable) to have one function 2250 * do the work of 3. For the direct-rendering case, this function could 2251 * just call the driver's \c __DRIdrawableRec::destroyDrawable function. 2252 * This would reduce the frequency with which \c __driGarbageCollectDrawables 2253 * would need to be used. This really should be done as part of the new DRI 2254 * interface work. 2255 * 2256 * \sa http://oss.sgi.com/projects/ogl-sample/registry/MESA/release_buffers.txt 2257 * __driGarbageCollectDrawables 2258 * glXDestroyGLXPixmap 2259 * glXDestroyPbuffer glXDestroyPixmap glXDestroyWindow 2260 * glXDestroyGLXPbufferSGIX glXDestroyGLXVideoSourceSGIX 2261 */ 2262static Bool 2263__glXReleaseBuffersMESA(Display * dpy, GLXDrawable d) 2264{ 2265 (void) dpy; 2266 (void) d; 2267 return False; 2268} 2269 2270 2271_X_EXPORT GLXPixmap 2272glXCreateGLXPixmapMESA(Display * dpy, XVisualInfo * visual, 2273 Pixmap pixmap, Colormap cmap) 2274{ 2275 (void) dpy; 2276 (void) visual; 2277 (void) pixmap; 2278 (void) cmap; 2279 return 0; 2280} 2281 2282/*@}*/ 2283 2284 2285/** 2286 * GLX_MESA_copy_sub_buffer 2287 */ 2288#define X_GLXvop_CopySubBufferMESA 5154 /* temporary */ 2289static void 2290__glXCopySubBufferMESA(Display * dpy, GLXDrawable drawable, 2291 int x, int y, int width, int height) 2292{ 2293 xGLXVendorPrivateReq *req; 2294 struct glx_context *gc; 2295 GLXContextTag tag; 2296 CARD32 *drawable_ptr; 2297 INT32 *x_ptr, *y_ptr, *w_ptr, *h_ptr; 2298 CARD8 opcode; 2299 2300#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) 2301 __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable); 2302 if (pdraw != NULL) { 2303 struct glx_screen *psc = pdraw->psc; 2304 if (psc->driScreen->copySubBuffer != NULL) { 2305 glFlush(); 2306 (*psc->driScreen->copySubBuffer) (pdraw, x, y, width, height); 2307 } 2308 2309 return; 2310 } 2311#endif 2312 2313 opcode = __glXSetupForCommand(dpy); 2314 if (!opcode) 2315 return; 2316 2317 /* 2318 ** The calling thread may or may not have a current context. If it 2319 ** does, send the context tag so the server can do a flush. 2320 */ 2321 gc = __glXGetCurrentContext(); 2322 if ((gc != NULL) && (dpy == gc->currentDpy) && 2323 ((drawable == gc->currentDrawable) || 2324 (drawable == gc->currentReadable))) { 2325 tag = gc->currentContextTag; 2326 } 2327 else { 2328 tag = 0; 2329 } 2330 2331 LockDisplay(dpy); 2332 GetReqExtra(GLXVendorPrivate, sizeof(CARD32) + sizeof(INT32) * 4, req); 2333 req->reqType = opcode; 2334 req->glxCode = X_GLXVendorPrivate; 2335 req->vendorCode = X_GLXvop_CopySubBufferMESA; 2336 req->contextTag = tag; 2337 2338 drawable_ptr = (CARD32 *) (req + 1); 2339 x_ptr = (INT32 *) (drawable_ptr + 1); 2340 y_ptr = (INT32 *) (drawable_ptr + 2); 2341 w_ptr = (INT32 *) (drawable_ptr + 3); 2342 h_ptr = (INT32 *) (drawable_ptr + 4); 2343 2344 *drawable_ptr = drawable; 2345 *x_ptr = x; 2346 *y_ptr = y; 2347 *w_ptr = width; 2348 *h_ptr = height; 2349 2350 UnlockDisplay(dpy); 2351 SyncHandle(); 2352} 2353 2354/*@{*/ 2355static void 2356__glXBindTexImageEXT(Display * dpy, 2357 GLXDrawable drawable, int buffer, const int *attrib_list) 2358{ 2359 struct glx_context *gc = __glXGetCurrentContext(); 2360 2361 if (gc == NULL || gc->vtable->bind_tex_image == NULL) 2362 return; 2363 2364 gc->vtable->bind_tex_image(dpy, drawable, buffer, attrib_list); 2365} 2366 2367static void 2368__glXReleaseTexImageEXT(Display * dpy, GLXDrawable drawable, int buffer) 2369{ 2370 struct glx_context *gc = __glXGetCurrentContext(); 2371 2372 if (gc == NULL || gc->vtable->release_tex_image == NULL) 2373 return; 2374 2375 gc->vtable->release_tex_image(dpy, drawable, buffer); 2376} 2377 2378/*@}*/ 2379 2380#endif /* GLX_USE_APPLEGL */ 2381 2382/** 2383 * \c strdup is actually not a standard ANSI C or POSIX routine. 2384 * Irix will not define it if ANSI mode is in effect. 2385 * 2386 * \sa strdup 2387 */ 2388_X_HIDDEN char * 2389__glXstrdup(const char *str) 2390{ 2391 char *copy; 2392 copy = (char *) Xmalloc(strlen(str) + 1); 2393 if (!copy) 2394 return NULL; 2395 strcpy(copy, str); 2396 return copy; 2397} 2398 2399/* 2400** glXGetProcAddress support 2401*/ 2402 2403struct name_address_pair 2404{ 2405 const char *Name; 2406 GLvoid *Address; 2407}; 2408 2409#define GLX_FUNCTION(f) { # f, (GLvoid *) f } 2410#define GLX_FUNCTION2(n,f) { # n, (GLvoid *) f } 2411 2412static const struct name_address_pair GLX_functions[] = { 2413 /*** GLX_VERSION_1_0 ***/ 2414 GLX_FUNCTION(glXChooseVisual), 2415 GLX_FUNCTION(glXCopyContext), 2416 GLX_FUNCTION(glXCreateContext), 2417 GLX_FUNCTION(glXCreateGLXPixmap), 2418 GLX_FUNCTION(glXDestroyContext), 2419 GLX_FUNCTION(glXDestroyGLXPixmap), 2420 GLX_FUNCTION(glXGetConfig), 2421 GLX_FUNCTION(glXGetCurrentContext), 2422 GLX_FUNCTION(glXGetCurrentDrawable), 2423 GLX_FUNCTION(glXIsDirect), 2424 GLX_FUNCTION(glXMakeCurrent), 2425 GLX_FUNCTION(glXQueryExtension), 2426 GLX_FUNCTION(glXQueryVersion), 2427 GLX_FUNCTION(glXSwapBuffers), 2428 GLX_FUNCTION(glXUseXFont), 2429 GLX_FUNCTION(glXWaitGL), 2430 GLX_FUNCTION(glXWaitX), 2431 2432 /*** GLX_VERSION_1_1 ***/ 2433 GLX_FUNCTION(glXGetClientString), 2434 GLX_FUNCTION(glXQueryExtensionsString), 2435 GLX_FUNCTION(glXQueryServerString), 2436 2437 /*** GLX_VERSION_1_2 ***/ 2438 GLX_FUNCTION(glXGetCurrentDisplay), 2439 2440 /*** GLX_VERSION_1_3 ***/ 2441 GLX_FUNCTION(glXChooseFBConfig), 2442 GLX_FUNCTION(glXCreateNewContext), 2443 GLX_FUNCTION(glXCreatePbuffer), 2444 GLX_FUNCTION(glXCreatePixmap), 2445 GLX_FUNCTION(glXCreateWindow), 2446 GLX_FUNCTION(glXDestroyPbuffer), 2447 GLX_FUNCTION(glXDestroyPixmap), 2448 GLX_FUNCTION(glXDestroyWindow), 2449 GLX_FUNCTION(glXGetCurrentReadDrawable), 2450 GLX_FUNCTION(glXGetFBConfigAttrib), 2451 GLX_FUNCTION(glXGetFBConfigs), 2452 GLX_FUNCTION(glXGetSelectedEvent), 2453 GLX_FUNCTION(glXGetVisualFromFBConfig), 2454 GLX_FUNCTION(glXMakeContextCurrent), 2455 GLX_FUNCTION(glXQueryContext), 2456 GLX_FUNCTION(glXQueryDrawable), 2457 GLX_FUNCTION(glXSelectEvent), 2458 2459#ifndef GLX_USE_APPLEGL 2460 /*** GLX_SGI_swap_control ***/ 2461 GLX_FUNCTION2(glXSwapIntervalSGI, __glXSwapIntervalSGI), 2462 2463 /*** GLX_SGI_video_sync ***/ 2464 GLX_FUNCTION2(glXGetVideoSyncSGI, __glXGetVideoSyncSGI), 2465 GLX_FUNCTION2(glXWaitVideoSyncSGI, __glXWaitVideoSyncSGI), 2466 2467 /*** GLX_SGI_make_current_read ***/ 2468 GLX_FUNCTION2(glXMakeCurrentReadSGI, glXMakeContextCurrent), 2469 GLX_FUNCTION2(glXGetCurrentReadDrawableSGI, glXGetCurrentReadDrawable), 2470 2471 /*** GLX_EXT_import_context ***/ 2472 GLX_FUNCTION(glXFreeContextEXT), 2473 GLX_FUNCTION(glXGetContextIDEXT), 2474 GLX_FUNCTION2(glXGetCurrentDisplayEXT, glXGetCurrentDisplay), 2475 GLX_FUNCTION(glXImportContextEXT), 2476 GLX_FUNCTION2(glXQueryContextInfoEXT, glXQueryContext), 2477#endif 2478 2479 /*** GLX_SGIX_fbconfig ***/ 2480 GLX_FUNCTION2(glXGetFBConfigAttribSGIX, glXGetFBConfigAttrib), 2481 GLX_FUNCTION2(glXChooseFBConfigSGIX, glXChooseFBConfig), 2482 GLX_FUNCTION(glXCreateGLXPixmapWithConfigSGIX), 2483 GLX_FUNCTION(glXCreateContextWithConfigSGIX), 2484 GLX_FUNCTION2(glXGetVisualFromFBConfigSGIX, glXGetVisualFromFBConfig), 2485 GLX_FUNCTION(glXGetFBConfigFromVisualSGIX), 2486 2487#ifndef GLX_USE_APPLEGL 2488 /*** GLX_SGIX_pbuffer ***/ 2489 GLX_FUNCTION(glXCreateGLXPbufferSGIX), 2490 GLX_FUNCTION(glXDestroyGLXPbufferSGIX), 2491 GLX_FUNCTION(glXQueryGLXPbufferSGIX), 2492 GLX_FUNCTION(glXSelectEventSGIX), 2493 GLX_FUNCTION(glXGetSelectedEventSGIX), 2494 2495 /*** GLX_SGIX_swap_group ***/ 2496 GLX_FUNCTION2(glXJoinSwapGroupSGIX, __glXJoinSwapGroupSGIX), 2497 2498 /*** GLX_SGIX_swap_barrier ***/ 2499 GLX_FUNCTION2(glXBindSwapBarrierSGIX, __glXBindSwapBarrierSGIX), 2500 GLX_FUNCTION2(glXQueryMaxSwapBarriersSGIX, __glXQueryMaxSwapBarriersSGIX), 2501 2502 /*** GLX_MESA_copy_sub_buffer ***/ 2503 GLX_FUNCTION2(glXCopySubBufferMESA, __glXCopySubBufferMESA), 2504 2505 /*** GLX_MESA_pixmap_colormap ***/ 2506 GLX_FUNCTION(glXCreateGLXPixmapMESA), 2507 2508 /*** GLX_MESA_release_buffers ***/ 2509 GLX_FUNCTION2(glXReleaseBuffersMESA, __glXReleaseBuffersMESA), 2510 2511 /*** GLX_MESA_swap_control ***/ 2512 GLX_FUNCTION2(glXSwapIntervalMESA, __glXSwapIntervalMESA), 2513 GLX_FUNCTION2(glXGetSwapIntervalMESA, __glXGetSwapIntervalMESA), 2514#endif 2515 2516 /*** GLX_ARB_get_proc_address ***/ 2517 GLX_FUNCTION(glXGetProcAddressARB), 2518 2519 /*** GLX 1.4 ***/ 2520 GLX_FUNCTION2(glXGetProcAddress, glXGetProcAddressARB), 2521 2522#ifndef GLX_USE_APPLEGL 2523 /*** GLX_OML_sync_control ***/ 2524 GLX_FUNCTION2(glXWaitForSbcOML, __glXWaitForSbcOML), 2525 GLX_FUNCTION2(glXWaitForMscOML, __glXWaitForMscOML), 2526 GLX_FUNCTION2(glXSwapBuffersMscOML, __glXSwapBuffersMscOML), 2527 GLX_FUNCTION2(glXGetMscRateOML, __glXGetMscRateOML), 2528 GLX_FUNCTION2(glXGetSyncValuesOML, __glXGetSyncValuesOML), 2529 2530 /*** GLX_EXT_texture_from_pixmap ***/ 2531 GLX_FUNCTION2(glXBindTexImageEXT, __glXBindTexImageEXT), 2532 GLX_FUNCTION2(glXReleaseTexImageEXT, __glXReleaseTexImageEXT), 2533#endif 2534 2535#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) 2536 /*** DRI configuration ***/ 2537 GLX_FUNCTION(glXGetScreenDriver), 2538 GLX_FUNCTION(glXGetDriverConfig), 2539#endif 2540 2541 {NULL, NULL} /* end of list */ 2542}; 2543 2544static const GLvoid * 2545get_glx_proc_address(const char *funcName) 2546{ 2547 GLuint i; 2548 2549 /* try static functions */ 2550 for (i = 0; GLX_functions[i].Name; i++) { 2551 if (strcmp(GLX_functions[i].Name, funcName) == 0) 2552 return GLX_functions[i].Address; 2553 } 2554 2555 return NULL; 2556} 2557 2558/** 2559 * Get the address of a named GL function. This is the pre-GLX 1.4 name for 2560 * \c glXGetProcAddress. 2561 * 2562 * \param procName Name of a GL or GLX function. 2563 * \returns A pointer to the named function 2564 * 2565 * \sa glXGetProcAddress 2566 */ 2567_X_EXPORT void (*glXGetProcAddressARB(const GLubyte * procName)) (void) 2568{ 2569 typedef void (*gl_function) (void); 2570 gl_function f; 2571 2572 2573 /* Search the table of GLX and internal functions first. If that 2574 * fails and the supplied name could be a valid core GL name, try 2575 * searching the core GL function table. This check is done to prevent 2576 * DRI based drivers from searching the core GL function table for 2577 * internal API functions. 2578 */ 2579 f = (gl_function) get_glx_proc_address((const char *) procName); 2580 if ((f == NULL) && (procName[0] == 'g') && (procName[1] == 'l') 2581 && (procName[2] != 'X')) { 2582#ifdef GLX_SHARED_GLAPI 2583 f = (gl_function) __indirect_get_proc_address((const char *) procName); 2584#endif 2585 if (!f) 2586 f = (gl_function) _glapi_get_proc_address((const char *) procName); 2587 if (!f) { 2588 struct glx_context *gc = __glXGetCurrentContext(); 2589 2590 if (gc != NULL && gc->vtable->get_proc_address != NULL) 2591 f = gc->vtable->get_proc_address((const char *) procName); 2592 } 2593 } 2594 return f; 2595} 2596 2597/** 2598 * Get the address of a named GL function. This is the GLX 1.4 name for 2599 * \c glXGetProcAddressARB. 2600 * 2601 * \param procName Name of a GL or GLX function. 2602 * \returns A pointer to the named function 2603 * 2604 * \sa glXGetProcAddressARB 2605 */ 2606_X_EXPORT void (*glXGetProcAddress(const GLubyte * procName)) (void) 2607#if defined(__GNUC__) && !defined(GLX_ALIAS_UNSUPPORTED) 2608 __attribute__ ((alias("glXGetProcAddressARB"))); 2609#else 2610{ 2611 return glXGetProcAddressARB(procName); 2612} 2613#endif /* __GNUC__ */ 2614 2615 2616#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) 2617/** 2618 * Get the unadjusted system time (UST). Currently, the UST is measured in 2619 * microseconds since Epoc. The actual resolution of the UST may vary from 2620 * system to system, and the units may vary from release to release. 2621 * Drivers should not call this function directly. They should instead use 2622 * \c glXGetProcAddress to obtain a pointer to the function. 2623 * 2624 * \param ust Location to store the 64-bit UST 2625 * \returns Zero on success or a negative errno value on failure. 2626 * 2627 * \sa glXGetProcAddress, PFNGLXGETUSTPROC 2628 * 2629 * \since Internal API version 20030317. 2630 */ 2631_X_HIDDEN int 2632__glXGetUST(int64_t * ust) 2633{ 2634 struct timeval tv; 2635 2636 if (ust == NULL) { 2637 return -EFAULT; 2638 } 2639 2640 if (gettimeofday(&tv, NULL) == 0) { 2641 ust[0] = (tv.tv_sec * 1000000) + tv.tv_usec; 2642 return 0; 2643 } 2644 else { 2645 return -errno; 2646 } 2647} 2648#endif /* GLX_DIRECT_RENDERING */ 2649