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glx: be explicit about when mapping X <> GLX visuals
[mesa.git] / src / glx / glxcmds.c
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 #include "glx_error.h"
41
42 #ifdef GLX_DIRECT_RENDERING
43 #ifdef GLX_USE_APPLEGL
44 #include "apple/apple_glx_context.h"
45 #include "apple/apple_glx.h"
46 #include "util/debug.h"
47 #else
48 #include <sys/time.h>
49 #ifdef XF86VIDMODE
50 #include <X11/extensions/xf86vmode.h>
51 #endif
52 #endif
53 #endif
54
55 #include <X11/Xlib-xcb.h>
56 #include <xcb/xcb.h>
57 #include <xcb/glx.h>
58 #include "GL/mesa_glinterop.h"
59
60 static const char __glXGLXClientVendorName[] = "Mesa Project and SGI";
61 static const char __glXGLXClientVersion[] = "1.4";
62
63 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
64
65 /**
66 * Get the __DRIdrawable for the drawable associated with a GLXContext
67 *
68 * \param dpy The display associated with \c drawable.
69 * \param drawable GLXDrawable whose __DRIdrawable part is to be retrieved.
70 * \param scrn_num If non-NULL, the drawables screen is stored there
71 * \returns A pointer to the context's __DRIdrawable on success, or NULL if
72 * the drawable is not associated with a direct-rendering context.
73 */
74 _X_HIDDEN __GLXDRIdrawable *
75 GetGLXDRIDrawable(Display * dpy, GLXDrawable drawable)
76 {
77 struct glx_display *priv = __glXInitialize(dpy);
78 __GLXDRIdrawable *pdraw;
79
80 if (priv == NULL)
81 return NULL;
82
83 if (__glxHashLookup(priv->drawHash, drawable, (void *) &pdraw) == 0)
84 return pdraw;
85
86 return NULL;
87 }
88
89 #endif
90
91 _X_HIDDEN struct glx_drawable *
92 GetGLXDrawable(Display *dpy, GLXDrawable drawable)
93 {
94 struct glx_display *priv = __glXInitialize(dpy);
95 struct glx_drawable *glxDraw;
96
97 if (priv == NULL)
98 return NULL;
99
100 if (__glxHashLookup(priv->glXDrawHash, drawable, (void *) &glxDraw) == 0)
101 return glxDraw;
102
103 return NULL;
104 }
105
106 _X_HIDDEN int
107 InitGLXDrawable(Display *dpy, struct glx_drawable *glxDraw, XID xDrawable,
108 GLXDrawable drawable)
109 {
110 struct glx_display *priv = __glXInitialize(dpy);
111
112 if (!priv)
113 return -1;
114
115 glxDraw->xDrawable = xDrawable;
116 glxDraw->drawable = drawable;
117 glxDraw->lastEventSbc = 0;
118 glxDraw->eventSbcWrap = 0;
119
120 return __glxHashInsert(priv->glXDrawHash, drawable, glxDraw);
121 }
122
123 _X_HIDDEN void
124 DestroyGLXDrawable(Display *dpy, GLXDrawable drawable)
125 {
126 struct glx_display *priv = __glXInitialize(dpy);
127 struct glx_drawable *glxDraw;
128
129 if (!priv)
130 return;
131
132 glxDraw = GetGLXDrawable(dpy, drawable);
133 __glxHashDelete(priv->glXDrawHash, drawable);
134 free(glxDraw);
135 }
136
137 /**
138 * Get the GLX per-screen data structure associated with a GLX context.
139 *
140 * \param dpy Display for which the GLX per-screen information is to be
141 * retrieved.
142 * \param scrn Screen on \c dpy for which the GLX per-screen information is
143 * to be retrieved.
144 * \returns A pointer to the GLX per-screen data if \c dpy and \c scrn
145 * specify a valid GLX screen, or NULL otherwise.
146 *
147 * \todo Should this function validate that \c scrn is within the screen
148 * number range for \c dpy?
149 */
150
151 _X_HIDDEN struct glx_screen *
152 GetGLXScreenConfigs(Display * dpy, int scrn)
153 {
154 struct glx_display *const priv = __glXInitialize(dpy);
155
156 return (priv
157 && priv->screens !=
158 NULL) ? priv->screens[scrn] : NULL;
159 }
160
161
162 static int
163 GetGLXPrivScreenConfig(Display * dpy, int scrn, struct glx_display ** ppriv,
164 struct glx_screen ** ppsc)
165 {
166 /* Initialize the extension, if needed . This has the added value
167 * of initializing/allocating the display private
168 */
169
170 if (dpy == NULL) {
171 return GLX_NO_EXTENSION;
172 }
173
174 *ppriv = __glXInitialize(dpy);
175 if (*ppriv == NULL) {
176 return GLX_NO_EXTENSION;
177 }
178
179 /* Check screen number to see if its valid */
180 if ((scrn < 0) || (scrn >= ScreenCount(dpy))) {
181 return GLX_BAD_SCREEN;
182 }
183
184 /* Check to see if the GL is supported on this screen */
185 *ppsc = (*ppriv)->screens[scrn];
186 if ((*ppsc)->configs == NULL && (*ppsc)->visuals == NULL) {
187 /* No support for GL on this screen regardless of visual */
188 return GLX_BAD_VISUAL;
189 }
190
191 return Success;
192 }
193
194
195 /**
196 * Determine if a \c GLXFBConfig supplied by the application is valid.
197 *
198 * \param dpy Application supplied \c Display pointer.
199 * \param config Application supplied \c GLXFBConfig.
200 *
201 * \returns If the \c GLXFBConfig is valid, the a pointer to the matching
202 * \c struct glx_config structure is returned. Otherwise, \c NULL
203 * is returned.
204 */
205 static struct glx_config *
206 ValidateGLXFBConfig(Display * dpy, GLXFBConfig fbconfig)
207 {
208 struct glx_display *const priv = __glXInitialize(dpy);
209 int num_screens = ScreenCount(dpy);
210 unsigned i;
211 struct glx_config *config;
212
213 if (priv != NULL) {
214 for (i = 0; i < num_screens; i++) {
215 for (config = priv->screens[i]->configs; config != NULL;
216 config = config->next) {
217 if (config == (struct glx_config *) fbconfig) {
218 return config;
219 }
220 }
221 }
222 }
223
224 return NULL;
225 }
226
227 /**
228 * Verifies context's GLX_RENDER_TYPE value with config.
229 *
230 * \param config GLX FBConfig which will support the returned renderType.
231 * \param renderType The context render type to be verified.
232 * \return True if the value of context renderType was approved, or 0 if no
233 * valid value was found.
234 */
235 Bool
236 validate_renderType_against_config(const struct glx_config *config,
237 int renderType)
238 {
239 /* GLX_EXT_no_config_context supports any render type */
240 if (!config)
241 return True;
242
243 switch (renderType) {
244 case GLX_RGBA_TYPE:
245 return (config->renderType & GLX_RGBA_BIT) != 0;
246 case GLX_COLOR_INDEX_TYPE:
247 return (config->renderType & GLX_COLOR_INDEX_BIT) != 0;
248 case GLX_RGBA_FLOAT_TYPE_ARB:
249 return (config->renderType & GLX_RGBA_FLOAT_BIT_ARB) != 0;
250 case GLX_RGBA_UNSIGNED_FLOAT_TYPE_EXT:
251 return (config->renderType & GLX_RGBA_UNSIGNED_FLOAT_BIT_EXT) != 0;
252 default:
253 break;
254 }
255 return 0;
256 }
257
258 _X_HIDDEN Bool
259 glx_context_init(struct glx_context *gc,
260 struct glx_screen *psc, struct glx_config *config)
261 {
262 gc->majorOpcode = __glXSetupForCommand(psc->display->dpy);
263 if (!gc->majorOpcode)
264 return False;
265
266 gc->screen = psc->scr;
267 gc->psc = psc;
268 gc->config = config;
269 gc->isDirect = GL_TRUE;
270 gc->currentContextTag = -1;
271
272 return True;
273 }
274
275
276 /**
277 * Create a new context.
278 *
279 * \param renderType For FBConfigs, what is the rendering type?
280 */
281
282 static GLXContext
283 CreateContext(Display *dpy, int generic_id, struct glx_config *config,
284 GLXContext shareList_user, Bool allowDirect,
285 unsigned code, int renderType, int screen)
286 {
287 struct glx_context *gc;
288 struct glx_screen *psc;
289 struct glx_context *shareList = (struct glx_context *) shareList_user;
290 if (dpy == NULL)
291 return NULL;
292
293 psc = GetGLXScreenConfigs(dpy, screen);
294 if (psc == NULL)
295 return NULL;
296
297 if (generic_id == None)
298 return NULL;
299
300 gc = NULL;
301 #ifdef GLX_USE_APPLEGL
302 gc = applegl_create_context(psc, config, shareList, renderType);
303 #else
304 if (allowDirect && psc->vtable->create_context)
305 gc = psc->vtable->create_context(psc, config, shareList, renderType);
306 if (!gc)
307 gc = indirect_create_context(psc, config, shareList, renderType);
308 #endif
309 if (!gc)
310 return NULL;
311
312 LockDisplay(dpy);
313 switch (code) {
314 case X_GLXCreateContext: {
315 xGLXCreateContextReq *req;
316
317 /* Send the glXCreateContext request */
318 GetReq(GLXCreateContext, req);
319 req->reqType = gc->majorOpcode;
320 req->glxCode = X_GLXCreateContext;
321 req->context = gc->xid = XAllocID(dpy);
322 req->visual = generic_id;
323 req->screen = screen;
324 req->shareList = shareList ? shareList->xid : None;
325 req->isDirect = gc->isDirect;
326 break;
327 }
328
329 case X_GLXCreateNewContext: {
330 xGLXCreateNewContextReq *req;
331
332 /* Send the glXCreateNewContext request */
333 GetReq(GLXCreateNewContext, req);
334 req->reqType = gc->majorOpcode;
335 req->glxCode = X_GLXCreateNewContext;
336 req->context = gc->xid = XAllocID(dpy);
337 req->fbconfig = generic_id;
338 req->screen = screen;
339 req->renderType = renderType;
340 req->shareList = shareList ? shareList->xid : None;
341 req->isDirect = gc->isDirect;
342 break;
343 }
344
345 case X_GLXvop_CreateContextWithConfigSGIX: {
346 xGLXVendorPrivateWithReplyReq *vpreq;
347 xGLXCreateContextWithConfigSGIXReq *req;
348
349 /* Send the glXCreateNewContext request */
350 GetReqExtra(GLXVendorPrivateWithReply,
351 sz_xGLXCreateContextWithConfigSGIXReq -
352 sz_xGLXVendorPrivateWithReplyReq, vpreq);
353 req = (xGLXCreateContextWithConfigSGIXReq *) vpreq;
354 req->reqType = gc->majorOpcode;
355 req->glxCode = X_GLXVendorPrivateWithReply;
356 req->vendorCode = X_GLXvop_CreateContextWithConfigSGIX;
357 req->context = gc->xid = XAllocID(dpy);
358 req->fbconfig = generic_id;
359 req->screen = screen;
360 req->renderType = renderType;
361 req->shareList = shareList ? shareList->xid : None;
362 req->isDirect = gc->isDirect;
363 break;
364 }
365
366 default:
367 /* What to do here? This case is the sign of an internal error. It
368 * should never be reachable.
369 */
370 break;
371 }
372
373 UnlockDisplay(dpy);
374 SyncHandle();
375
376 gc->share_xid = shareList ? shareList->xid : None;
377 gc->imported = GL_FALSE;
378
379 return (GLXContext) gc;
380 }
381
382 _GLX_PUBLIC GLXContext
383 glXCreateContext(Display * dpy, XVisualInfo * vis,
384 GLXContext shareList, Bool allowDirect)
385 {
386 struct glx_config *config = NULL;
387 int renderType = GLX_RGBA_TYPE;
388
389 #if defined(GLX_DIRECT_RENDERING) || defined(GLX_USE_APPLEGL)
390 struct glx_screen *const psc = GetGLXScreenConfigs(dpy, vis->screen);
391
392 if (psc)
393 config = glx_config_find_visual(psc->visuals, vis->visualid);
394
395 if (config == NULL) {
396 __glXSendError(dpy, BadValue, vis->visualid, X_GLXCreateContext, True);
397 return None;
398 }
399
400 /* Choose the context render type based on DRI config values. It is
401 * unusual to set this type from config, but we have no other choice, as
402 * this old API does not provide renderType parameter.
403 */
404 if (config->renderType & GLX_RGBA_FLOAT_BIT_ARB) {
405 renderType = GLX_RGBA_FLOAT_TYPE_ARB;
406 } else if (config->renderType & GLX_RGBA_UNSIGNED_FLOAT_BIT_EXT) {
407 renderType = GLX_RGBA_UNSIGNED_FLOAT_TYPE_EXT;
408 } else if (config->renderType & GLX_RGBA_BIT) {
409 renderType = GLX_RGBA_TYPE;
410 } else if (config->renderType & GLX_COLOR_INDEX_BIT) {
411 renderType = GLX_COLOR_INDEX_TYPE;
412 } else if (config->rgbMode) {
413 /* If we're here, then renderType is not set correctly. Let's use a
414 * safeguard - any TrueColor or DirectColor mode is RGB mode. Such
415 * default value is needed by old DRI drivers, which didn't set
416 * renderType correctly as the value was just ignored.
417 */
418 renderType = GLX_RGBA_TYPE;
419 } else {
420 /* Safeguard - only one option left, all non-RGB modes are indexed
421 * modes. Again, this allows drivers with invalid renderType to work
422 * properly.
423 */
424 renderType = GLX_COLOR_INDEX_TYPE;
425 }
426 #endif
427
428 return CreateContext(dpy, vis->visualid, config, shareList, allowDirect,
429 X_GLXCreateContext, renderType, vis->screen);
430 }
431
432 static void
433 glx_send_destroy_context(Display *dpy, XID xid)
434 {
435 CARD8 opcode = __glXSetupForCommand(dpy);
436 xGLXDestroyContextReq *req;
437
438 LockDisplay(dpy);
439 GetReq(GLXDestroyContext, req);
440 req->reqType = opcode;
441 req->glxCode = X_GLXDestroyContext;
442 req->context = xid;
443 UnlockDisplay(dpy);
444 SyncHandle();
445 }
446
447 /*
448 ** Destroy the named context
449 */
450
451 _GLX_PUBLIC void
452 glXDestroyContext(Display * dpy, GLXContext ctx)
453 {
454 struct glx_context *gc = (struct glx_context *) ctx;
455
456 if (gc == NULL || gc->xid == None)
457 return;
458
459 __glXLock();
460 if (!gc->imported)
461 glx_send_destroy_context(dpy, gc->xid);
462
463 if (gc->currentDpy) {
464 /* This context is bound to some thread. According to the man page,
465 * we should not actually delete the context until it's unbound.
466 * Note that we set gc->xid = None above. In MakeContextCurrent()
467 * we check for that and delete the context there.
468 */
469 gc->xid = None;
470 } else {
471 gc->vtable->destroy(gc);
472 }
473 __glXUnlock();
474 }
475
476 /*
477 ** Return the major and minor version #s for the GLX extension
478 */
479 _GLX_PUBLIC Bool
480 glXQueryVersion(Display * dpy, int *major, int *minor)
481 {
482 struct glx_display *priv;
483
484 /* Init the extension. This fetches the major and minor version. */
485 priv = __glXInitialize(dpy);
486 if (!priv)
487 return False;
488
489 if (major)
490 *major = priv->majorVersion;
491 if (minor)
492 *minor = priv->minorVersion;
493 return True;
494 }
495
496 /*
497 ** Query the existence of the GLX extension
498 */
499 _GLX_PUBLIC Bool
500 glXQueryExtension(Display * dpy, int *errorBase, int *eventBase)
501 {
502 int major_op, erb, evb;
503 Bool rv;
504
505 rv = XQueryExtension(dpy, GLX_EXTENSION_NAME, &major_op, &evb, &erb);
506 if (rv) {
507 if (errorBase)
508 *errorBase = erb;
509 if (eventBase)
510 *eventBase = evb;
511 }
512 return rv;
513 }
514
515 /*
516 ** Put a barrier in the token stream that forces the GL to finish its
517 ** work before X can proceed.
518 */
519 _GLX_PUBLIC void
520 glXWaitGL(void)
521 {
522 struct glx_context *gc = __glXGetCurrentContext();
523
524 if (gc->vtable->wait_gl)
525 gc->vtable->wait_gl(gc);
526 }
527
528 /*
529 ** Put a barrier in the token stream that forces X to finish its
530 ** work before GL can proceed.
531 */
532 _GLX_PUBLIC void
533 glXWaitX(void)
534 {
535 struct glx_context *gc = __glXGetCurrentContext();
536
537 if (gc->vtable->wait_x)
538 gc->vtable->wait_x(gc);
539 }
540
541 _GLX_PUBLIC void
542 glXUseXFont(Font font, int first, int count, int listBase)
543 {
544 struct glx_context *gc = __glXGetCurrentContext();
545
546 if (gc->vtable->use_x_font)
547 gc->vtable->use_x_font(gc, font, first, count, listBase);
548 }
549
550 /************************************************************************/
551
552 /*
553 ** Copy the source context to the destination context using the
554 ** attribute "mask".
555 */
556 _GLX_PUBLIC void
557 glXCopyContext(Display * dpy, GLXContext source_user,
558 GLXContext dest_user, unsigned long mask)
559 {
560 struct glx_context *source = (struct glx_context *) source_user;
561 struct glx_context *dest = (struct glx_context *) dest_user;
562 #ifdef GLX_USE_APPLEGL
563 struct glx_context *gc = __glXGetCurrentContext();
564 int errorcode;
565 bool x11error;
566
567 if(apple_glx_copy_context(gc->driContext, source->driContext, dest->driContext,
568 mask, &errorcode, &x11error)) {
569 __glXSendError(dpy, errorcode, 0, X_GLXCopyContext, x11error);
570 }
571
572 #else
573 xGLXCopyContextReq *req;
574 struct glx_context *gc = __glXGetCurrentContext();
575 GLXContextTag tag;
576 CARD8 opcode;
577
578 opcode = __glXSetupForCommand(dpy);
579 if (!opcode) {
580 return;
581 }
582
583 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
584 if (gc->isDirect) {
585 /* NOT_DONE: This does not work yet */
586 }
587 #endif
588
589 /*
590 ** If the source is the current context, send its tag so that the context
591 ** can be flushed before the copy.
592 */
593 if (source == gc && dpy == gc->currentDpy) {
594 tag = gc->currentContextTag;
595 }
596 else {
597 tag = 0;
598 }
599
600 /* Send the glXCopyContext request */
601 LockDisplay(dpy);
602 GetReq(GLXCopyContext, req);
603 req->reqType = opcode;
604 req->glxCode = X_GLXCopyContext;
605 req->source = source ? source->xid : None;
606 req->dest = dest ? dest->xid : None;
607 req->mask = mask;
608 req->contextTag = tag;
609 UnlockDisplay(dpy);
610 SyncHandle();
611 #endif /* GLX_USE_APPLEGL */
612 }
613
614
615 /**
616 * Determine if a context uses direct rendering.
617 *
618 * \param dpy Display where the context was created.
619 * \param contextID ID of the context to be tested.
620 *
621 * \returns \c True if the context is direct rendering or not.
622 */
623 static Bool
624 __glXIsDirect(Display * dpy, GLXContextID contextID)
625 {
626 CARD8 opcode;
627 xcb_connection_t *c;
628 xcb_generic_error_t *err;
629 xcb_glx_is_direct_reply_t *reply;
630 Bool is_direct;
631
632 opcode = __glXSetupForCommand(dpy);
633 if (!opcode) {
634 return False;
635 }
636
637 c = XGetXCBConnection(dpy);
638 reply = xcb_glx_is_direct_reply(c, xcb_glx_is_direct(c, contextID), &err);
639 is_direct = (reply != NULL && reply->is_direct) ? True : False;
640
641 if (err != NULL) {
642 __glXSendErrorForXcb(dpy, err);
643 free(err);
644 }
645
646 free(reply);
647
648 return is_direct;
649 }
650
651 /**
652 * \todo
653 * Shouldn't this function \b always return \c False when
654 * \c GLX_DIRECT_RENDERING is not defined? Do we really need to bother with
655 * the GLX protocol here at all?
656 */
657 _GLX_PUBLIC Bool
658 glXIsDirect(Display * dpy, GLXContext gc_user)
659 {
660 struct glx_context *gc = (struct glx_context *) gc_user;
661
662 if (!gc) {
663 return False;
664 }
665 else if (gc->isDirect) {
666 return True;
667 }
668 #ifdef GLX_USE_APPLEGL /* TODO: indirect on darwin */
669 return False;
670 #else
671 return __glXIsDirect(dpy, gc->xid);
672 #endif
673 }
674
675 _GLX_PUBLIC GLXPixmap
676 glXCreateGLXPixmap(Display * dpy, XVisualInfo * vis, Pixmap pixmap)
677 {
678 #ifdef GLX_USE_APPLEGL
679 int screen = vis->screen;
680 struct glx_screen *const psc = GetGLXScreenConfigs(dpy, screen);
681 const struct glx_config *config;
682
683 config = glx_config_find_visual(psc->visuals, vis->visualid);
684
685 if(apple_glx_pixmap_create(dpy, vis->screen, pixmap, config))
686 return None;
687
688 return pixmap;
689 #else
690 xGLXCreateGLXPixmapReq *req;
691 struct glx_drawable *glxDraw;
692 GLXPixmap xid;
693 CARD8 opcode;
694
695 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
696 struct glx_display *const priv = __glXInitialize(dpy);
697
698 if (priv == NULL)
699 return None;
700 #endif
701
702 opcode = __glXSetupForCommand(dpy);
703 if (!opcode) {
704 return None;
705 }
706
707 glxDraw = malloc(sizeof(*glxDraw));
708 if (!glxDraw)
709 return None;
710
711 /* Send the glXCreateGLXPixmap request */
712 LockDisplay(dpy);
713 GetReq(GLXCreateGLXPixmap, req);
714 req->reqType = opcode;
715 req->glxCode = X_GLXCreateGLXPixmap;
716 req->screen = vis->screen;
717 req->visual = vis->visualid;
718 req->pixmap = pixmap;
719 req->glxpixmap = xid = XAllocID(dpy);
720 UnlockDisplay(dpy);
721 SyncHandle();
722
723 if (InitGLXDrawable(dpy, glxDraw, pixmap, req->glxpixmap)) {
724 free(glxDraw);
725 return None;
726 }
727
728 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
729 do {
730 /* FIXME: Maybe delay __DRIdrawable creation until the drawable
731 * is actually bound to a context... */
732
733 __GLXDRIdrawable *pdraw;
734 struct glx_screen *psc;
735 struct glx_config *config;
736
737 psc = priv->screens[vis->screen];
738 if (psc->driScreen == NULL)
739 return xid;
740
741 config = glx_config_find_visual(psc->visuals, vis->visualid);
742 pdraw = psc->driScreen->createDrawable(psc, pixmap, xid, config);
743 if (pdraw == NULL) {
744 fprintf(stderr, "failed to create pixmap\n");
745 xid = None;
746 break;
747 }
748
749 if (__glxHashInsert(priv->drawHash, xid, pdraw)) {
750 (*pdraw->destroyDrawable) (pdraw);
751 xid = None;
752 break;
753 }
754 } while (0);
755
756 if (xid == None) {
757 xGLXDestroyGLXPixmapReq *dreq;
758 LockDisplay(dpy);
759 GetReq(GLXDestroyGLXPixmap, dreq);
760 dreq->reqType = opcode;
761 dreq->glxCode = X_GLXDestroyGLXPixmap;
762 dreq->glxpixmap = xid;
763 UnlockDisplay(dpy);
764 SyncHandle();
765 }
766 #endif
767
768 return xid;
769 #endif
770 }
771
772 /*
773 ** Destroy the named pixmap
774 */
775 _GLX_PUBLIC void
776 glXDestroyGLXPixmap(Display * dpy, GLXPixmap glxpixmap)
777 {
778 #ifdef GLX_USE_APPLEGL
779 if(apple_glx_pixmap_destroy(dpy, glxpixmap))
780 __glXSendError(dpy, GLXBadPixmap, glxpixmap, X_GLXDestroyPixmap, false);
781 #else
782 xGLXDestroyGLXPixmapReq *req;
783 CARD8 opcode;
784
785 opcode = __glXSetupForCommand(dpy);
786 if (!opcode) {
787 return;
788 }
789
790 /* Send the glXDestroyGLXPixmap request */
791 LockDisplay(dpy);
792 GetReq(GLXDestroyGLXPixmap, req);
793 req->reqType = opcode;
794 req->glxCode = X_GLXDestroyGLXPixmap;
795 req->glxpixmap = glxpixmap;
796 UnlockDisplay(dpy);
797 SyncHandle();
798
799 DestroyGLXDrawable(dpy, glxpixmap);
800
801 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
802 {
803 struct glx_display *const priv = __glXInitialize(dpy);
804 __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, glxpixmap);
805
806 if (priv != NULL && pdraw != NULL) {
807 (*pdraw->destroyDrawable) (pdraw);
808 __glxHashDelete(priv->drawHash, glxpixmap);
809 }
810 }
811 #endif
812 #endif /* GLX_USE_APPLEGL */
813 }
814
815 _GLX_PUBLIC void
816 glXSwapBuffers(Display * dpy, GLXDrawable drawable)
817 {
818 #ifdef GLX_USE_APPLEGL
819 struct glx_context * gc = __glXGetCurrentContext();
820 if(gc != &dummyContext && apple_glx_is_current_drawable(dpy, gc->driContext, drawable)) {
821 apple_glx_swap_buffers(gc->driContext);
822 } else {
823 __glXSendError(dpy, GLXBadCurrentWindow, 0, X_GLXSwapBuffers, false);
824 }
825 #else
826 struct glx_context *gc;
827 GLXContextTag tag;
828 CARD8 opcode;
829 xcb_connection_t *c;
830
831 gc = __glXGetCurrentContext();
832
833 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
834 {
835 __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable);
836
837 if (pdraw != NULL) {
838 Bool flush = gc != &dummyContext && drawable == gc->currentDrawable;
839
840 (*pdraw->psc->driScreen->swapBuffers)(pdraw, 0, 0, 0, flush);
841 return;
842 }
843 }
844 #endif
845
846 opcode = __glXSetupForCommand(dpy);
847 if (!opcode) {
848 return;
849 }
850
851 /*
852 ** The calling thread may or may not have a current context. If it
853 ** does, send the context tag so the server can do a flush.
854 */
855 if ((gc != &dummyContext) && (dpy == gc->currentDpy) &&
856 ((drawable == gc->currentDrawable)
857 || (drawable == gc->currentReadable))) {
858 tag = gc->currentContextTag;
859 }
860 else {
861 tag = 0;
862 }
863
864 c = XGetXCBConnection(dpy);
865 xcb_glx_swap_buffers(c, tag, drawable);
866 xcb_flush(c);
867 #endif /* GLX_USE_APPLEGL */
868 }
869
870
871 /*
872 ** Return configuration information for the given display, screen and
873 ** visual combination.
874 */
875 _GLX_PUBLIC int
876 glXGetConfig(Display * dpy, XVisualInfo * vis, int attribute,
877 int *value_return)
878 {
879 struct glx_display *priv;
880 struct glx_screen *psc;
881 struct glx_config *config;
882 int status;
883
884 status = GetGLXPrivScreenConfig(dpy, vis->screen, &priv, &psc);
885 if (status == Success) {
886 config = glx_config_find_visual(psc->visuals, vis->visualid);
887
888 /* Lookup attribute after first finding a match on the visual */
889 if (config != NULL) {
890 return glx_config_get(config, attribute, value_return);
891 }
892
893 status = GLX_BAD_VISUAL;
894 }
895
896 /*
897 ** If we can't find the config for this visual, this visual is not
898 ** supported by the OpenGL implementation on the server.
899 */
900 if ((status == GLX_BAD_VISUAL) && (attribute == GLX_USE_GL)) {
901 *value_return = False;
902 status = Success;
903 }
904
905 return status;
906 }
907
908 /************************************************************************/
909
910 static void
911 init_fbconfig_for_chooser(struct glx_config * config,
912 GLboolean fbconfig_style_tags)
913 {
914 memset(config, 0, sizeof(struct glx_config));
915 config->visualID = (XID) GLX_DONT_CARE;
916 config->visualType = GLX_DONT_CARE;
917
918 /* glXChooseFBConfig specifies different defaults for these properties than
919 * glXChooseVisual.
920 */
921 if (fbconfig_style_tags) {
922 config->rgbMode = GL_TRUE;
923 config->doubleBufferMode = GLX_DONT_CARE;
924 config->renderType = GLX_RGBA_BIT;
925 }
926
927 config->drawableType = GLX_WINDOW_BIT;
928 config->visualRating = GLX_DONT_CARE;
929 config->transparentPixel = GLX_NONE;
930 config->transparentRed = GLX_DONT_CARE;
931 config->transparentGreen = GLX_DONT_CARE;
932 config->transparentBlue = GLX_DONT_CARE;
933 config->transparentAlpha = GLX_DONT_CARE;
934 config->transparentIndex = GLX_DONT_CARE;
935
936 config->xRenderable = GLX_DONT_CARE;
937 config->fbconfigID = (GLXFBConfigID) (GLX_DONT_CARE);
938
939 config->swapMethod = GLX_DONT_CARE;
940 config->sRGBCapable = GLX_DONT_CARE;
941 }
942
943 #define MATCH_DONT_CARE( param ) \
944 do { \
945 if ( ((int) a-> param != (int) GLX_DONT_CARE) \
946 && (a-> param != b-> param) ) { \
947 return False; \
948 } \
949 } while ( 0 )
950
951 #define MATCH_MINIMUM( param ) \
952 do { \
953 if ( ((int) a-> param != (int) GLX_DONT_CARE) \
954 && (a-> param > b-> param) ) { \
955 return False; \
956 } \
957 } while ( 0 )
958
959 #define MATCH_EXACT( param ) \
960 do { \
961 if ( a-> param != b-> param) { \
962 return False; \
963 } \
964 } while ( 0 )
965
966 /* Test that all bits from a are contained in b */
967 #define MATCH_MASK(param) \
968 do { \
969 if ( ((int) a-> param != (int) GLX_DONT_CARE) \
970 && ((a->param & ~b->param) != 0) ) { \
971 return False; \
972 } \
973 } while (0);
974
975 /**
976 * Determine if two GLXFBConfigs are compatible.
977 *
978 * \param a Application specified config to test.
979 * \param b Server specified config to test against \c a.
980 */
981 static Bool
982 fbconfigs_compatible(const struct glx_config * const a,
983 const struct glx_config * const b)
984 {
985 MATCH_DONT_CARE(doubleBufferMode);
986 MATCH_DONT_CARE(visualType);
987 MATCH_DONT_CARE(visualRating);
988 MATCH_DONT_CARE(xRenderable);
989 MATCH_DONT_CARE(fbconfigID);
990 MATCH_DONT_CARE(swapMethod);
991
992 MATCH_MINIMUM(rgbBits);
993 MATCH_MINIMUM(numAuxBuffers);
994 MATCH_MINIMUM(redBits);
995 MATCH_MINIMUM(greenBits);
996 MATCH_MINIMUM(blueBits);
997 MATCH_MINIMUM(alphaBits);
998 MATCH_MINIMUM(depthBits);
999 MATCH_MINIMUM(stencilBits);
1000 MATCH_MINIMUM(accumRedBits);
1001 MATCH_MINIMUM(accumGreenBits);
1002 MATCH_MINIMUM(accumBlueBits);
1003 MATCH_MINIMUM(accumAlphaBits);
1004 MATCH_MINIMUM(sampleBuffers);
1005 MATCH_MINIMUM(maxPbufferWidth);
1006 MATCH_MINIMUM(maxPbufferHeight);
1007 MATCH_MINIMUM(maxPbufferPixels);
1008 MATCH_MINIMUM(samples);
1009
1010 MATCH_DONT_CARE(stereoMode);
1011 MATCH_EXACT(level);
1012
1013 MATCH_MASK(drawableType);
1014 MATCH_MASK(renderType);
1015 MATCH_DONT_CARE(sRGBCapable);
1016
1017 /* There is a bug in a few of the XFree86 DDX drivers. They contain
1018 * visuals with a "transparent type" of 0 when they really mean GLX_NONE.
1019 * Technically speaking, it is a bug in the DDX driver, but there is
1020 * enough of an installed base to work around the problem here. In any
1021 * case, 0 is not a valid value of the transparent type, so we'll treat 0
1022 * from the app as GLX_DONT_CARE. We'll consider GLX_NONE from the app and
1023 * 0 from the server to be a match to maintain backward compatibility with
1024 * the (broken) drivers.
1025 */
1026
1027 if (a->transparentPixel != (int) GLX_DONT_CARE && a->transparentPixel != 0) {
1028 if (a->transparentPixel == GLX_NONE) {
1029 if (b->transparentPixel != GLX_NONE && b->transparentPixel != 0)
1030 return False;
1031 }
1032 else {
1033 MATCH_EXACT(transparentPixel);
1034 }
1035
1036 switch (a->transparentPixel) {
1037 case GLX_TRANSPARENT_RGB:
1038 MATCH_DONT_CARE(transparentRed);
1039 MATCH_DONT_CARE(transparentGreen);
1040 MATCH_DONT_CARE(transparentBlue);
1041 MATCH_DONT_CARE(transparentAlpha);
1042 break;
1043
1044 case GLX_TRANSPARENT_INDEX:
1045 MATCH_DONT_CARE(transparentIndex);
1046 break;
1047
1048 default:
1049 break;
1050 }
1051 }
1052
1053 return True;
1054 }
1055
1056
1057 /* There's some trickly language in the GLX spec about how this is supposed
1058 * to work. Basically, if a given component size is either not specified
1059 * or the requested size is zero, it is supposed to act like PERFER_SMALLER.
1060 * Well, that's really hard to do with the code as-is. This behavior is
1061 * closer to correct, but still not technically right.
1062 */
1063 #define PREFER_LARGER_OR_ZERO(comp) \
1064 do { \
1065 if ( ((*a)-> comp) != ((*b)-> comp) ) { \
1066 if ( ((*a)-> comp) == 0 ) { \
1067 return -1; \
1068 } \
1069 else if ( ((*b)-> comp) == 0 ) { \
1070 return 1; \
1071 } \
1072 else { \
1073 return ((*b)-> comp) - ((*a)-> comp) ; \
1074 } \
1075 } \
1076 } while( 0 )
1077
1078 #define PREFER_LARGER(comp) \
1079 do { \
1080 if ( ((*a)-> comp) != ((*b)-> comp) ) { \
1081 return ((*b)-> comp) - ((*a)-> comp) ; \
1082 } \
1083 } while( 0 )
1084
1085 #define PREFER_SMALLER(comp) \
1086 do { \
1087 if ( ((*a)-> comp) != ((*b)-> comp) ) { \
1088 return ((*a)-> comp) - ((*b)-> comp) ; \
1089 } \
1090 } while( 0 )
1091
1092 /**
1093 * Compare two GLXFBConfigs. This function is intended to be used as the
1094 * compare function passed in to qsort.
1095 *
1096 * \returns If \c a is a "better" config, according to the specification of
1097 * SGIX_fbconfig, a number less than zero is returned. If \c b is
1098 * better, then a number greater than zero is return. If both are
1099 * equal, zero is returned.
1100 * \sa qsort, glXChooseVisual, glXChooseFBConfig, glXChooseFBConfigSGIX
1101 */
1102 static int
1103 fbconfig_compare(struct glx_config **a, struct glx_config **b)
1104 {
1105 /* The order of these comparisons must NOT change. It is defined by
1106 * the GLX 1.4 specification.
1107 */
1108
1109 PREFER_SMALLER(visualSelectGroup);
1110
1111 /* The sort order for the visualRating is GLX_NONE, GLX_SLOW, and
1112 * GLX_NON_CONFORMANT_CONFIG. It just so happens that this is the
1113 * numerical sort order of the enums (0x8000, 0x8001, and 0x800D).
1114 */
1115 PREFER_SMALLER(visualRating);
1116
1117 /* This isn't quite right. It is supposed to compare the sum of the
1118 * components the user specifically set minimums for.
1119 */
1120 PREFER_LARGER_OR_ZERO(redBits);
1121 PREFER_LARGER_OR_ZERO(greenBits);
1122 PREFER_LARGER_OR_ZERO(blueBits);
1123 PREFER_LARGER_OR_ZERO(alphaBits);
1124
1125 PREFER_SMALLER(rgbBits);
1126
1127 if (((*a)->doubleBufferMode != (*b)->doubleBufferMode)) {
1128 /* Prefer single-buffer.
1129 */
1130 return (!(*a)->doubleBufferMode) ? -1 : 1;
1131 }
1132
1133 PREFER_SMALLER(numAuxBuffers);
1134
1135 PREFER_SMALLER(sampleBuffers);
1136 PREFER_SMALLER(samples);
1137
1138 PREFER_LARGER_OR_ZERO(depthBits);
1139 PREFER_SMALLER(stencilBits);
1140
1141 /* This isn't quite right. It is supposed to compare the sum of the
1142 * components the user specifically set minimums for.
1143 */
1144 PREFER_LARGER_OR_ZERO(accumRedBits);
1145 PREFER_LARGER_OR_ZERO(accumGreenBits);
1146 PREFER_LARGER_OR_ZERO(accumBlueBits);
1147 PREFER_LARGER_OR_ZERO(accumAlphaBits);
1148
1149 PREFER_SMALLER(visualType);
1150
1151 /* None of the pbuffer or fbconfig specs say that this comparison needs
1152 * to happen at all, but it seems like it should.
1153 */
1154 PREFER_LARGER(maxPbufferWidth);
1155 PREFER_LARGER(maxPbufferHeight);
1156 PREFER_LARGER(maxPbufferPixels);
1157
1158 return 0;
1159 }
1160
1161
1162 /**
1163 * Selects and sorts a subset of the supplied configs based on the attributes.
1164 * This function forms to basis of \c glXChooseFBConfig and
1165 * \c glXChooseFBConfigSGIX.
1166 *
1167 * \param configs Array of pointers to possible configs. The elements of
1168 * this array that do not meet the criteria will be set to
1169 * NULL. The remaining elements will be sorted according to
1170 * the various visual / FBConfig selection rules.
1171 * \param num_configs Number of elements in the \c configs array.
1172 * \param attribList Attributes used select from \c configs. This array is
1173 * terminated by a \c None tag. The array is of the form
1174 * expected by \c glXChooseFBConfig (where every tag has a
1175 * value).
1176 * \returns The number of valid elements left in \c configs.
1177 *
1178 * \sa glXChooseFBConfig, glXChooseFBConfigSGIX
1179 */
1180 static int
1181 choose_fbconfig(struct glx_config ** configs, int num_configs,
1182 const int *attribList)
1183 {
1184 struct glx_config test_config;
1185 int base;
1186 int i;
1187
1188 /* This is a fairly direct implementation of the selection method
1189 * described by GLX_SGIX_fbconfig. Start by culling out all the
1190 * configs that are not compatible with the selected parameter
1191 * list.
1192 */
1193
1194 init_fbconfig_for_chooser(&test_config, GL_TRUE);
1195 __glXInitializeVisualConfigFromTags(&test_config, 512,
1196 (const INT32 *) attribList,
1197 GL_TRUE, GL_TRUE);
1198
1199 base = 0;
1200 for (i = 0; i < num_configs; i++) {
1201 if (fbconfigs_compatible(&test_config, configs[i])) {
1202 configs[base] = configs[i];
1203 base++;
1204 }
1205 }
1206
1207 if (base == 0) {
1208 return 0;
1209 }
1210
1211 if (base < num_configs) {
1212 (void) memset(&configs[base], 0, sizeof(void *) * (num_configs - base));
1213 }
1214
1215 /* After the incompatible configs are removed, the resulting
1216 * list is sorted according to the rules set out in the various
1217 * specifications.
1218 */
1219
1220 qsort(configs, base, sizeof(struct glx_config *),
1221 (int (*)(const void *, const void *)) fbconfig_compare);
1222 return base;
1223 }
1224
1225
1226
1227
1228 /*
1229 ** Return the visual that best matches the template. Return None if no
1230 ** visual matches the template.
1231 */
1232 _GLX_PUBLIC XVisualInfo *
1233 glXChooseVisual(Display * dpy, int screen, int *attribList)
1234 {
1235 XVisualInfo *visualList = NULL;
1236 struct glx_display *priv;
1237 struct glx_screen *psc;
1238 struct glx_config test_config;
1239 struct glx_config *config;
1240 struct glx_config *best_config = NULL;
1241
1242 /*
1243 ** Get a list of all visuals, return if list is empty
1244 */
1245 if (GetGLXPrivScreenConfig(dpy, screen, &priv, &psc) != Success) {
1246 return None;
1247 }
1248
1249
1250 /*
1251 ** Build a template from the defaults and the attribute list
1252 ** Free visual list and return if an unexpected token is encountered
1253 */
1254 init_fbconfig_for_chooser(&test_config, GL_FALSE);
1255 __glXInitializeVisualConfigFromTags(&test_config, 512,
1256 (const INT32 *) attribList,
1257 GL_TRUE, GL_FALSE);
1258
1259 /*
1260 ** Eliminate visuals that don't meet minimum requirements
1261 ** Compute a score for those that do
1262 ** Remember which visual, if any, got the highest score
1263 ** If no visual is acceptable, return None
1264 ** Otherwise, create an XVisualInfo list with just the selected X visual
1265 ** and return this.
1266 */
1267 for (config = psc->visuals; config != NULL; config = config->next) {
1268 if (fbconfigs_compatible(&test_config, config)
1269 && ((best_config == NULL) ||
1270 (fbconfig_compare (&config, &best_config) < 0))) {
1271 XVisualInfo visualTemplate;
1272 XVisualInfo *newList;
1273 int i;
1274
1275 visualTemplate.screen = screen;
1276 visualTemplate.visualid = config->visualID;
1277 newList = XGetVisualInfo(dpy, VisualScreenMask | VisualIDMask,
1278 &visualTemplate, &i);
1279
1280 if (newList) {
1281 free(visualList);
1282 visualList = newList;
1283 best_config = config;
1284 }
1285 }
1286 }
1287
1288 #ifdef GLX_USE_APPLEGL
1289 if(visualList && env_var_as_boolean("LIBGL_DUMP_VISUALID", false)) {
1290 printf("visualid 0x%lx\n", visualList[0].visualid);
1291 }
1292 #endif
1293
1294 return visualList;
1295 }
1296
1297
1298 _GLX_PUBLIC const char *
1299 glXQueryExtensionsString(Display * dpy, int screen)
1300 {
1301 struct glx_screen *psc;
1302 struct glx_display *priv;
1303
1304 if (GetGLXPrivScreenConfig(dpy, screen, &priv, &psc) != Success) {
1305 return NULL;
1306 }
1307
1308 if (!psc->effectiveGLXexts) {
1309 if (!psc->serverGLXexts) {
1310 psc->serverGLXexts =
1311 __glXQueryServerString(dpy, priv->majorOpcode, screen,
1312 GLX_EXTENSIONS);
1313 }
1314
1315 __glXCalculateUsableExtensions(psc,
1316 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
1317 (psc->driScreen != NULL),
1318 #else
1319 GL_FALSE,
1320 #endif
1321 priv->minorVersion);
1322 }
1323
1324 return psc->effectiveGLXexts;
1325 }
1326
1327 _GLX_PUBLIC const char *
1328 glXGetClientString(Display * dpy, int name)
1329 {
1330 (void) dpy;
1331
1332 switch (name) {
1333 case GLX_VENDOR:
1334 return (__glXGLXClientVendorName);
1335 case GLX_VERSION:
1336 return (__glXGLXClientVersion);
1337 case GLX_EXTENSIONS:
1338 return (__glXGetClientExtensions());
1339 default:
1340 return NULL;
1341 }
1342 }
1343
1344 _GLX_PUBLIC const char *
1345 glXQueryServerString(Display * dpy, int screen, int name)
1346 {
1347 struct glx_screen *psc;
1348 struct glx_display *priv;
1349 const char **str;
1350
1351
1352 if (GetGLXPrivScreenConfig(dpy, screen, &priv, &psc) != Success) {
1353 return NULL;
1354 }
1355
1356 switch (name) {
1357 case GLX_VENDOR:
1358 str = &priv->serverGLXvendor;
1359 break;
1360 case GLX_VERSION:
1361 str = &priv->serverGLXversion;
1362 break;
1363 case GLX_EXTENSIONS:
1364 str = &psc->serverGLXexts;
1365 break;
1366 default:
1367 return NULL;
1368 }
1369
1370 if (*str == NULL) {
1371 *str = __glXQueryServerString(dpy, priv->majorOpcode, screen, name);
1372 }
1373
1374 return *str;
1375 }
1376
1377
1378 /*
1379 ** EXT_import_context
1380 */
1381
1382 _GLX_PUBLIC Display *
1383 glXGetCurrentDisplay(void)
1384 {
1385 struct glx_context *gc = __glXGetCurrentContext();
1386 if (gc == &dummyContext)
1387 return NULL;
1388 return gc->currentDpy;
1389 }
1390
1391 _GLX_PUBLIC
1392 GLX_ALIAS(Display *, glXGetCurrentDisplayEXT, (void), (),
1393 glXGetCurrentDisplay)
1394
1395 #ifndef GLX_USE_APPLEGL
1396 _GLX_PUBLIC GLXContext
1397 glXImportContextEXT(Display *dpy, GLXContextID contextID)
1398 {
1399 struct glx_display *priv = __glXInitialize(dpy);
1400 struct glx_screen *psc = NULL;
1401 xGLXQueryContextReply reply;
1402 CARD8 opcode;
1403 struct glx_context *ctx;
1404 int i, renderType = GLX_RGBA_TYPE; /* By default, assume RGBA context */
1405 XID share = None;
1406 struct glx_config *mode = NULL;
1407 uint32_t fbconfigID = 0;
1408 uint32_t visualID = 0;
1409 uint32_t screen = 0;
1410 Bool got_screen = False;
1411
1412 if (priv == NULL)
1413 return NULL;
1414
1415 /* The GLX_EXT_import_context spec says:
1416 *
1417 * "If <contextID> does not refer to a valid context, then a BadContext
1418 * error is generated; if <contextID> refers to direct rendering
1419 * context then no error is generated but glXImportContextEXT returns
1420 * NULL."
1421 *
1422 * If contextID is None, generate BadContext on the client-side. Other
1423 * sorts of invalid contexts will be detected by the server in the
1424 * __glXIsDirect call.
1425 */
1426 if (contextID == None) {
1427 __glXSendError(dpy, GLXBadContext, contextID, X_GLXIsDirect, false);
1428 return NULL;
1429 }
1430
1431 if (__glXIsDirect(dpy, contextID))
1432 return NULL;
1433
1434 opcode = __glXSetupForCommand(dpy);
1435 if (!opcode)
1436 return 0;
1437
1438 /* Send the glXQueryContextInfoEXT request */
1439 LockDisplay(dpy);
1440
1441 if (priv->majorVersion > 1 || priv->minorVersion >= 3) {
1442 xGLXQueryContextReq *req;
1443
1444 GetReq(GLXQueryContext, req);
1445
1446 req->reqType = opcode;
1447 req->glxCode = X_GLXQueryContext;
1448 req->context = contextID;
1449 }
1450 else {
1451 xGLXVendorPrivateReq *vpreq;
1452 xGLXQueryContextInfoEXTReq *req;
1453
1454 GetReqExtra(GLXVendorPrivate,
1455 sz_xGLXQueryContextInfoEXTReq - sz_xGLXVendorPrivateReq,
1456 vpreq);
1457 req = (xGLXQueryContextInfoEXTReq *) vpreq;
1458 req->reqType = opcode;
1459 req->glxCode = X_GLXVendorPrivateWithReply;
1460 req->vendorCode = X_GLXvop_QueryContextInfoEXT;
1461 req->context = contextID;
1462 }
1463
1464 if (_XReply(dpy, (xReply *) & reply, 0, False) &&
1465 reply.n < (INT32_MAX / 2)) {
1466
1467 for (i = 0; i < reply.n; i++) {
1468 int prop[2];
1469
1470 _XRead(dpy, (char *)prop, sizeof(prop));
1471 switch (prop[0]) {
1472 case GLX_SCREEN:
1473 screen = prop[1];
1474 got_screen = True;
1475 break;
1476 case GLX_SHARE_CONTEXT_EXT:
1477 share = prop[1];
1478 break;
1479 case GLX_VISUAL_ID_EXT:
1480 visualID = prop[1];
1481 break;
1482 case GLX_FBCONFIG_ID:
1483 fbconfigID = prop[1];
1484 break;
1485 case GLX_RENDER_TYPE:
1486 renderType = prop[1];
1487 break;
1488 }
1489 }
1490 }
1491 UnlockDisplay(dpy);
1492 SyncHandle();
1493
1494 if (!got_screen)
1495 return NULL;
1496
1497 psc = GetGLXScreenConfigs(dpy, screen);
1498 if (psc == NULL)
1499 return NULL;
1500
1501 if (fbconfigID != 0) {
1502 mode = glx_config_find_fbconfig(psc->configs, fbconfigID);
1503 } else if (visualID != 0) {
1504 mode = glx_config_find_visual(psc->visuals, visualID);
1505 }
1506
1507 if (mode == NULL)
1508 return NULL;
1509
1510 ctx = indirect_create_context(psc, mode, NULL, renderType);
1511 if (ctx == NULL)
1512 return NULL;
1513
1514 ctx->xid = contextID;
1515 ctx->imported = GL_TRUE;
1516 ctx->share_xid = share;
1517
1518 return (GLXContext) ctx;
1519 }
1520
1521 #endif
1522
1523 _GLX_PUBLIC int
1524 glXQueryContext(Display * dpy, GLXContext ctx_user, int attribute, int *value)
1525 {
1526 struct glx_context *ctx = (struct glx_context *) ctx_user;
1527
1528 switch (attribute) {
1529 case GLX_SHARE_CONTEXT_EXT:
1530 *value = ctx->share_xid;
1531 break;
1532 case GLX_VISUAL_ID_EXT:
1533 *value = ctx->config ? ctx->config->visualID : None;
1534 break;
1535 case GLX_SCREEN:
1536 *value = ctx->screen;
1537 break;
1538 case GLX_FBCONFIG_ID:
1539 *value = ctx->config ? ctx->config->fbconfigID : None;
1540 break;
1541 case GLX_RENDER_TYPE:
1542 *value = ctx->renderType;
1543 break;
1544 default:
1545 return GLX_BAD_ATTRIBUTE;
1546 }
1547 return Success;
1548 }
1549
1550 _GLX_PUBLIC
1551 GLX_ALIAS(int, glXQueryContextInfoEXT,
1552 (Display * dpy, GLXContext ctx, int attribute, int *value),
1553 (dpy, ctx, attribute, value), glXQueryContext)
1554
1555 _GLX_PUBLIC GLXContextID glXGetContextIDEXT(const GLXContext ctx_user)
1556 {
1557 struct glx_context *ctx = (struct glx_context *) ctx_user;
1558
1559 return (ctx == NULL) ? None : ctx->xid;
1560 }
1561
1562 _GLX_PUBLIC void
1563 glXFreeContextEXT(Display *dpy, GLXContext ctx)
1564 {
1565 struct glx_context *gc = (struct glx_context *) ctx;
1566
1567 if (gc == NULL || gc->xid == None)
1568 return;
1569
1570 /* The GLX_EXT_import_context spec says:
1571 *
1572 * "glXFreeContext does not free the server-side context information or
1573 * the XID associated with the server-side context."
1574 *
1575 * Don't send any protocol. Just destroy the client-side tracking of the
1576 * context. Also, only release the context structure if it's not current.
1577 */
1578 __glXLock();
1579 if (gc->currentDpy) {
1580 gc->xid = None;
1581 } else {
1582 gc->vtable->destroy(gc);
1583 }
1584 __glXUnlock();
1585 }
1586
1587 _GLX_PUBLIC GLXFBConfig *
1588 glXChooseFBConfig(Display * dpy, int screen,
1589 const int *attribList, int *nitems)
1590 {
1591 struct glx_config **config_list;
1592 int list_size;
1593
1594
1595 config_list = (struct glx_config **)
1596 glXGetFBConfigs(dpy, screen, &list_size);
1597
1598 if ((config_list != NULL) && (list_size > 0) && (attribList != NULL)) {
1599 list_size = choose_fbconfig(config_list, list_size, attribList);
1600 if (list_size == 0) {
1601 free(config_list);
1602 config_list = NULL;
1603 }
1604 }
1605
1606 *nitems = list_size;
1607 return (GLXFBConfig *) config_list;
1608 }
1609
1610
1611 _GLX_PUBLIC GLXContext
1612 glXCreateNewContext(Display * dpy, GLXFBConfig fbconfig,
1613 int renderType, GLXContext shareList, Bool allowDirect)
1614 {
1615 struct glx_config *config = (struct glx_config *) fbconfig;
1616 struct glx_config **config_list;
1617 int list_size;
1618 unsigned i;
1619
1620 if (!config) {
1621 __glXSendError(dpy, GLXBadFBConfig, 0, X_GLXCreateNewContext, false);
1622 return NULL;
1623 }
1624
1625 config_list = (struct glx_config **)
1626 glXGetFBConfigs(dpy, config->screen, &list_size);
1627
1628 for (i = 0; i < list_size; i++) {
1629 if (config_list[i] == config)
1630 break;
1631 }
1632 free(config_list);
1633
1634 if (i == list_size) {
1635 __glXSendError(dpy, GLXBadFBConfig, 0, X_GLXCreateNewContext, false);
1636 return NULL;
1637 }
1638
1639 return CreateContext(dpy, config->fbconfigID, config, shareList,
1640 allowDirect, X_GLXCreateNewContext, renderType,
1641 config->screen);
1642 }
1643
1644
1645 _GLX_PUBLIC GLXDrawable
1646 glXGetCurrentReadDrawable(void)
1647 {
1648 struct glx_context *gc = __glXGetCurrentContext();
1649
1650 return gc->currentReadable;
1651 }
1652
1653
1654 _GLX_PUBLIC GLXFBConfig *
1655 glXGetFBConfigs(Display * dpy, int screen, int *nelements)
1656 {
1657 struct glx_display *priv = __glXInitialize(dpy);
1658 struct glx_config **config_list = NULL;
1659 struct glx_config *config;
1660 unsigned num_configs = 0;
1661 int i;
1662
1663 *nelements = 0;
1664 if (priv && (priv->screens != NULL)
1665 && (screen >= 0) && (screen < ScreenCount(dpy))
1666 && (priv->screens[screen]->configs != NULL)
1667 && (priv->screens[screen]->configs->fbconfigID
1668 != (int) GLX_DONT_CARE)) {
1669
1670 for (config = priv->screens[screen]->configs; config != NULL;
1671 config = config->next) {
1672 if (config->fbconfigID != (int) GLX_DONT_CARE) {
1673 num_configs++;
1674 }
1675 }
1676
1677 config_list = malloc(num_configs * sizeof *config_list);
1678 if (config_list != NULL) {
1679 *nelements = num_configs;
1680 i = 0;
1681 for (config = priv->screens[screen]->configs; config != NULL;
1682 config = config->next) {
1683 if (config->fbconfigID != (int) GLX_DONT_CARE) {
1684 config_list[i] = config;
1685 i++;
1686 }
1687 }
1688 }
1689 }
1690
1691 return (GLXFBConfig *) config_list;
1692 }
1693
1694
1695 _GLX_PUBLIC int
1696 glXGetFBConfigAttrib(Display * dpy, GLXFBConfig fbconfig,
1697 int attribute, int *value)
1698 {
1699 struct glx_config *config = ValidateGLXFBConfig(dpy, fbconfig);
1700
1701 if (config == NULL)
1702 return GLXBadFBConfig;
1703
1704 return glx_config_get(config, attribute, value);
1705 }
1706
1707
1708 _GLX_PUBLIC XVisualInfo *
1709 glXGetVisualFromFBConfig(Display * dpy, GLXFBConfig fbconfig)
1710 {
1711 XVisualInfo visualTemplate;
1712 struct glx_config *config = (struct glx_config *) fbconfig;
1713 int count;
1714
1715 /*
1716 ** Get a list of all visuals, return if list is empty
1717 */
1718 visualTemplate.visualid = config->visualID;
1719 return XGetVisualInfo(dpy, VisualIDMask, &visualTemplate, &count);
1720 }
1721
1722 #ifndef GLX_USE_APPLEGL
1723 /*
1724 ** GLX_SGI_swap_control
1725 */
1726 static int
1727 __glXSwapIntervalSGI(int interval)
1728 {
1729 xGLXVendorPrivateReq *req;
1730 struct glx_context *gc = __glXGetCurrentContext();
1731 struct glx_screen *psc;
1732 Display *dpy;
1733 CARD32 *interval_ptr;
1734 CARD8 opcode;
1735
1736 if (gc == &dummyContext) {
1737 return GLX_BAD_CONTEXT;
1738 }
1739
1740 if (interval <= 0) {
1741 return GLX_BAD_VALUE;
1742 }
1743
1744 psc = GetGLXScreenConfigs( gc->currentDpy, gc->screen);
1745
1746 #ifdef GLX_DIRECT_RENDERING
1747 if (gc->isDirect && psc && psc->driScreen &&
1748 psc->driScreen->setSwapInterval) {
1749 __GLXDRIdrawable *pdraw =
1750 GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable);
1751 /* Simply ignore the command if the GLX drawable has been destroyed but
1752 * the context is still bound.
1753 */
1754 if (pdraw)
1755 psc->driScreen->setSwapInterval(pdraw, interval);
1756 return 0;
1757 }
1758 #endif
1759
1760 dpy = gc->currentDpy;
1761 opcode = __glXSetupForCommand(dpy);
1762 if (!opcode) {
1763 return 0;
1764 }
1765
1766 /* Send the glXSwapIntervalSGI request */
1767 LockDisplay(dpy);
1768 GetReqExtra(GLXVendorPrivate, sizeof(CARD32), req);
1769 req->reqType = opcode;
1770 req->glxCode = X_GLXVendorPrivate;
1771 req->vendorCode = X_GLXvop_SwapIntervalSGI;
1772 req->contextTag = gc->currentContextTag;
1773
1774 interval_ptr = (CARD32 *) (req + 1);
1775 *interval_ptr = interval;
1776
1777 UnlockDisplay(dpy);
1778 SyncHandle();
1779 XFlush(dpy);
1780
1781 return 0;
1782 }
1783
1784
1785 /*
1786 ** GLX_MESA_swap_control
1787 */
1788 static int
1789 __glXSwapIntervalMESA(unsigned int interval)
1790 {
1791 #ifdef GLX_DIRECT_RENDERING
1792 struct glx_context *gc = __glXGetCurrentContext();
1793
1794 if (gc != &dummyContext && gc->isDirect) {
1795 struct glx_screen *psc;
1796
1797 psc = GetGLXScreenConfigs( gc->currentDpy, gc->screen);
1798 if (psc && psc->driScreen && psc->driScreen->setSwapInterval) {
1799 __GLXDRIdrawable *pdraw =
1800 GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable);
1801
1802 /* Simply ignore the command if the GLX drawable has been destroyed but
1803 * the context is still bound.
1804 */
1805 if (!pdraw)
1806 return 0;
1807
1808 return psc->driScreen->setSwapInterval(pdraw, interval);
1809 }
1810 }
1811 #endif
1812
1813 return GLX_BAD_CONTEXT;
1814 }
1815
1816
1817 static int
1818 __glXGetSwapIntervalMESA(void)
1819 {
1820 #ifdef GLX_DIRECT_RENDERING
1821 struct glx_context *gc = __glXGetCurrentContext();
1822
1823 if (gc != &dummyContext && gc->isDirect) {
1824 struct glx_screen *psc;
1825
1826 psc = GetGLXScreenConfigs( gc->currentDpy, gc->screen);
1827 if (psc && psc->driScreen && psc->driScreen->getSwapInterval) {
1828 __GLXDRIdrawable *pdraw =
1829 GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable);
1830 if (pdraw)
1831 return psc->driScreen->getSwapInterval(pdraw);
1832 }
1833 }
1834 #endif
1835
1836 return 0;
1837 }
1838
1839
1840 /*
1841 ** GLX_SGI_video_sync
1842 */
1843 static int
1844 __glXGetVideoSyncSGI(unsigned int *count)
1845 {
1846 int64_t ust, msc, sbc;
1847 int ret;
1848 struct glx_context *gc = __glXGetCurrentContext();
1849 struct glx_screen *psc;
1850 #ifdef GLX_DIRECT_RENDERING
1851 __GLXDRIdrawable *pdraw;
1852 #endif
1853
1854 if (gc == &dummyContext)
1855 return GLX_BAD_CONTEXT;
1856
1857 #ifdef GLX_DIRECT_RENDERING
1858 if (!gc->isDirect)
1859 return GLX_BAD_CONTEXT;
1860 #endif
1861
1862 psc = GetGLXScreenConfigs(gc->currentDpy, gc->screen);
1863 #ifdef GLX_DIRECT_RENDERING
1864 pdraw = GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable);
1865 #endif
1866
1867 /* FIXME: Looking at the GLX_SGI_video_sync spec in the extension registry,
1868 * FIXME: there should be a GLX encoding for this call. I can find no
1869 * FIXME: documentation for the GLX encoding.
1870 */
1871 #ifdef GLX_DIRECT_RENDERING
1872 if (psc && psc->driScreen && psc->driScreen->getDrawableMSC) {
1873 ret = psc->driScreen->getDrawableMSC(psc, pdraw, &ust, &msc, &sbc);
1874 *count = (unsigned) msc;
1875 return (ret == True) ? 0 : GLX_BAD_CONTEXT;
1876 }
1877 #endif
1878
1879 return GLX_BAD_CONTEXT;
1880 }
1881
1882 static int
1883 __glXWaitVideoSyncSGI(int divisor, int remainder, unsigned int *count)
1884 {
1885 struct glx_context *gc = __glXGetCurrentContext();
1886 struct glx_screen *psc;
1887 #ifdef GLX_DIRECT_RENDERING
1888 __GLXDRIdrawable *pdraw;
1889 #endif
1890 int64_t ust, msc, sbc;
1891 int ret;
1892
1893 if (divisor <= 0 || remainder < 0)
1894 return GLX_BAD_VALUE;
1895
1896 if (gc == &dummyContext)
1897 return GLX_BAD_CONTEXT;
1898
1899 #ifdef GLX_DIRECT_RENDERING
1900 if (!gc->isDirect)
1901 return GLX_BAD_CONTEXT;
1902 #endif
1903
1904 psc = GetGLXScreenConfigs( gc->currentDpy, gc->screen);
1905 #ifdef GLX_DIRECT_RENDERING
1906 pdraw = GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable);
1907 #endif
1908
1909 #ifdef GLX_DIRECT_RENDERING
1910 if (psc && psc->driScreen && psc->driScreen->waitForMSC) {
1911 ret = psc->driScreen->waitForMSC(pdraw, 0, divisor, remainder, &ust, &msc,
1912 &sbc);
1913 *count = (unsigned) msc;
1914 return (ret == True) ? 0 : GLX_BAD_CONTEXT;
1915 }
1916 #endif
1917
1918 return GLX_BAD_CONTEXT;
1919 }
1920
1921 #endif /* GLX_USE_APPLEGL */
1922
1923 /*
1924 ** GLX_SGIX_fbconfig
1925 ** Many of these functions are aliased to GLX 1.3 entry points in the
1926 ** GLX_functions table.
1927 */
1928
1929 _GLX_PUBLIC
1930 GLX_ALIAS(int, glXGetFBConfigAttribSGIX,
1931 (Display * dpy, GLXFBConfigSGIX config, int attribute, int *value),
1932 (dpy, config, attribute, value), glXGetFBConfigAttrib)
1933
1934 _GLX_PUBLIC GLX_ALIAS(GLXFBConfigSGIX *, glXChooseFBConfigSGIX,
1935 (Display * dpy, int screen, int *attrib_list,
1936 int *nelements), (dpy, screen, attrib_list, nelements),
1937 glXChooseFBConfig)
1938
1939 _GLX_PUBLIC GLX_ALIAS(XVisualInfo *, glXGetVisualFromFBConfigSGIX,
1940 (Display * dpy, GLXFBConfigSGIX config),
1941 (dpy, config), glXGetVisualFromFBConfig)
1942
1943 _GLX_PUBLIC GLXPixmap
1944 glXCreateGLXPixmapWithConfigSGIX(Display * dpy,
1945 GLXFBConfigSGIX fbconfig,
1946 Pixmap pixmap)
1947 {
1948 #ifndef GLX_USE_APPLEGL
1949 xGLXVendorPrivateWithReplyReq *vpreq;
1950 xGLXCreateGLXPixmapWithConfigSGIXReq *req;
1951 GLXPixmap xid = None;
1952 CARD8 opcode;
1953 struct glx_screen *psc;
1954 #endif
1955 struct glx_config *config = (struct glx_config *) fbconfig;
1956
1957
1958 if ((dpy == NULL) || (config == NULL)) {
1959 return None;
1960 }
1961 #ifdef GLX_USE_APPLEGL
1962 if(apple_glx_pixmap_create(dpy, config->screen, pixmap, config))
1963 return None;
1964 return pixmap;
1965 #else
1966
1967 psc = GetGLXScreenConfigs(dpy, config->screen);
1968 if ((psc != NULL)
1969 && __glXExtensionBitIsEnabled(psc, SGIX_fbconfig_bit)) {
1970 opcode = __glXSetupForCommand(dpy);
1971 if (!opcode) {
1972 return None;
1973 }
1974
1975 /* Send the glXCreateGLXPixmapWithConfigSGIX request */
1976 LockDisplay(dpy);
1977 GetReqExtra(GLXVendorPrivateWithReply,
1978 sz_xGLXCreateGLXPixmapWithConfigSGIXReq -
1979 sz_xGLXVendorPrivateWithReplyReq, vpreq);
1980 req = (xGLXCreateGLXPixmapWithConfigSGIXReq *) vpreq;
1981 req->reqType = opcode;
1982 req->glxCode = X_GLXVendorPrivateWithReply;
1983 req->vendorCode = X_GLXvop_CreateGLXPixmapWithConfigSGIX;
1984 req->screen = config->screen;
1985 req->fbconfig = config->fbconfigID;
1986 req->pixmap = pixmap;
1987 req->glxpixmap = xid = XAllocID(dpy);
1988 UnlockDisplay(dpy);
1989 SyncHandle();
1990 }
1991
1992 return xid;
1993 #endif
1994 }
1995
1996 _GLX_PUBLIC GLXContext
1997 glXCreateContextWithConfigSGIX(Display * dpy,
1998 GLXFBConfigSGIX fbconfig, int renderType,
1999 GLXContext shareList, Bool allowDirect)
2000 {
2001 GLXContext gc = NULL;
2002 struct glx_config *config = (struct glx_config *) fbconfig;
2003 struct glx_screen *psc;
2004
2005
2006 if ((dpy == NULL) || (config == NULL)) {
2007 return None;
2008 }
2009
2010 psc = GetGLXScreenConfigs(dpy, config->screen);
2011 if ((psc != NULL)
2012 && __glXExtensionBitIsEnabled(psc, SGIX_fbconfig_bit)) {
2013 gc = CreateContext(dpy, config->fbconfigID, config, shareList,
2014 allowDirect,
2015 X_GLXvop_CreateContextWithConfigSGIX, renderType,
2016 config->screen);
2017 }
2018
2019 return gc;
2020 }
2021
2022
2023 _GLX_PUBLIC GLXFBConfigSGIX
2024 glXGetFBConfigFromVisualSGIX(Display * dpy, XVisualInfo * vis)
2025 {
2026 struct glx_display *priv;
2027 struct glx_screen *psc = NULL;
2028
2029 if ((GetGLXPrivScreenConfig(dpy, vis->screen, &priv, &psc) == Success)
2030 && __glXExtensionBitIsEnabled(psc, SGIX_fbconfig_bit)
2031 && (psc->configs->fbconfigID != (int) GLX_DONT_CARE)) {
2032 return (GLXFBConfigSGIX) glx_config_find_visual(psc->configs,
2033 vis->visualid);
2034 }
2035
2036 return NULL;
2037 }
2038
2039 #ifndef GLX_USE_APPLEGL
2040 /*
2041 ** GLX_OML_sync_control
2042 */
2043 static Bool
2044 __glXGetSyncValuesOML(Display * dpy, GLXDrawable drawable,
2045 int64_t * ust, int64_t * msc, int64_t * sbc)
2046 {
2047 struct glx_display * const priv = __glXInitialize(dpy);
2048 int ret;
2049 #ifdef GLX_DIRECT_RENDERING
2050 __GLXDRIdrawable *pdraw;
2051 #endif
2052 struct glx_screen *psc;
2053
2054 if (!priv)
2055 return False;
2056
2057 #ifdef GLX_DIRECT_RENDERING
2058 pdraw = GetGLXDRIDrawable(dpy, drawable);
2059 psc = pdraw ? pdraw->psc : NULL;
2060 if (pdraw && psc->driScreen->getDrawableMSC) {
2061 ret = psc->driScreen->getDrawableMSC(psc, pdraw, ust, msc, sbc);
2062 return ret;
2063 }
2064 #endif
2065
2066 return False;
2067 }
2068
2069 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
2070 _X_HIDDEN GLboolean
2071 __glxGetMscRate(struct glx_screen *psc,
2072 int32_t * numerator, int32_t * denominator)
2073 {
2074 #ifdef XF86VIDMODE
2075 XF86VidModeModeLine mode_line;
2076 int dot_clock;
2077 int i;
2078
2079 if (XF86VidModeQueryVersion(psc->dpy, &i, &i) &&
2080 XF86VidModeGetModeLine(psc->dpy, psc->scr, &dot_clock, &mode_line)) {
2081 unsigned n = dot_clock * 1000;
2082 unsigned d = mode_line.vtotal * mode_line.htotal;
2083
2084 # define V_INTERLACE 0x010
2085 # define V_DBLSCAN 0x020
2086
2087 if (mode_line.flags & V_INTERLACE)
2088 n *= 2;
2089 else if (mode_line.flags & V_DBLSCAN)
2090 d *= 2;
2091
2092 /* The OML_sync_control spec requires that if the refresh rate is a
2093 * whole number, that the returned numerator be equal to the refresh
2094 * rate and the denominator be 1.
2095 */
2096
2097 if (n % d == 0) {
2098 n /= d;
2099 d = 1;
2100 }
2101 else {
2102 static const unsigned f[] = { 13, 11, 7, 5, 3, 2, 0 };
2103
2104 /* This is a poor man's way to reduce a fraction. It's far from
2105 * perfect, but it will work well enough for this situation.
2106 */
2107
2108 for (i = 0; f[i] != 0; i++) {
2109 while (n % f[i] == 0 && d % f[i] == 0) {
2110 d /= f[i];
2111 n /= f[i];
2112 }
2113 }
2114 }
2115
2116 *numerator = n;
2117 *denominator = d;
2118
2119 return True;
2120 }
2121 else
2122 #endif
2123
2124 return False;
2125 }
2126 #endif
2127
2128 /**
2129 * Determine the refresh rate of the specified drawable and display.
2130 *
2131 * \param dpy Display whose refresh rate is to be determined.
2132 * \param drawable Drawable whose refresh rate is to be determined.
2133 * \param numerator Numerator of the refresh rate.
2134 * \param demoninator Denominator of the refresh rate.
2135 * \return If the refresh rate for the specified display and drawable could
2136 * be calculated, True is returned. Otherwise False is returned.
2137 *
2138 * \note This function is implemented entirely client-side. A lot of other
2139 * functionality is required to export GLX_OML_sync_control, so on
2140 * XFree86 this function can be called for direct-rendering contexts
2141 * when GLX_OML_sync_control appears in the client extension string.
2142 */
2143
2144 _X_HIDDEN GLboolean
2145 __glXGetMscRateOML(Display * dpy, GLXDrawable drawable,
2146 int32_t * numerator, int32_t * denominator)
2147 {
2148 #if defined( GLX_DIRECT_RENDERING ) && defined( XF86VIDMODE )
2149 __GLXDRIdrawable *draw = GetGLXDRIDrawable(dpy, drawable);
2150
2151 if (draw == NULL)
2152 return False;
2153
2154 return __glxGetMscRate(draw->psc, numerator, denominator);
2155 #else
2156 (void) dpy;
2157 (void) drawable;
2158 (void) numerator;
2159 (void) denominator;
2160 #endif
2161 return False;
2162 }
2163
2164
2165 static int64_t
2166 __glXSwapBuffersMscOML(Display * dpy, GLXDrawable drawable,
2167 int64_t target_msc, int64_t divisor, int64_t remainder)
2168 {
2169 struct glx_context *gc = __glXGetCurrentContext();
2170 #ifdef GLX_DIRECT_RENDERING
2171 __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable);
2172 struct glx_screen *psc = pdraw ? pdraw->psc : NULL;
2173 #endif
2174
2175 if (gc == &dummyContext) /* no GLX for this */
2176 return -1;
2177
2178 #ifdef GLX_DIRECT_RENDERING
2179 if (!pdraw || !gc->isDirect)
2180 return -1;
2181 #endif
2182
2183 /* The OML_sync_control spec says these should "generate a GLX_BAD_VALUE
2184 * error", but it also says "It [glXSwapBuffersMscOML] will return a value
2185 * of -1 if the function failed because of errors detected in the input
2186 * parameters"
2187 */
2188 if (divisor < 0 || remainder < 0 || target_msc < 0)
2189 return -1;
2190 if (divisor > 0 && remainder >= divisor)
2191 return -1;
2192
2193 if (target_msc == 0 && divisor == 0 && remainder == 0)
2194 remainder = 1;
2195
2196 #ifdef GLX_DIRECT_RENDERING
2197 if (psc->driScreen && psc->driScreen->swapBuffers)
2198 return (*psc->driScreen->swapBuffers)(pdraw, target_msc, divisor,
2199 remainder, False);
2200 #endif
2201
2202 return -1;
2203 }
2204
2205
2206 static Bool
2207 __glXWaitForMscOML(Display * dpy, GLXDrawable drawable,
2208 int64_t target_msc, int64_t divisor,
2209 int64_t remainder, int64_t * ust,
2210 int64_t * msc, int64_t * sbc)
2211 {
2212 #ifdef GLX_DIRECT_RENDERING
2213 __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable);
2214 struct glx_screen *psc = pdraw ? pdraw->psc : NULL;
2215 int ret;
2216 #endif
2217
2218
2219 /* The OML_sync_control spec says these should "generate a GLX_BAD_VALUE
2220 * error", but the return type in the spec is Bool.
2221 */
2222 if (divisor < 0 || remainder < 0 || target_msc < 0)
2223 return False;
2224 if (divisor > 0 && remainder >= divisor)
2225 return False;
2226
2227 #ifdef GLX_DIRECT_RENDERING
2228 if (pdraw && psc->driScreen && psc->driScreen->waitForMSC) {
2229 ret = psc->driScreen->waitForMSC(pdraw, target_msc, divisor, remainder,
2230 ust, msc, sbc);
2231 return ret;
2232 }
2233 #endif
2234
2235 return False;
2236 }
2237
2238
2239 static Bool
2240 __glXWaitForSbcOML(Display * dpy, GLXDrawable drawable,
2241 int64_t target_sbc, int64_t * ust,
2242 int64_t * msc, int64_t * sbc)
2243 {
2244 #ifdef GLX_DIRECT_RENDERING
2245 __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable);
2246 struct glx_screen *psc = pdraw ? pdraw->psc : NULL;
2247 int ret;
2248 #endif
2249
2250 /* The OML_sync_control spec says this should "generate a GLX_BAD_VALUE
2251 * error", but the return type in the spec is Bool.
2252 */
2253 if (target_sbc < 0)
2254 return False;
2255
2256 #ifdef GLX_DIRECT_RENDERING
2257 if (pdraw && psc->driScreen && psc->driScreen->waitForSBC) {
2258 ret = psc->driScreen->waitForSBC(pdraw, target_sbc, ust, msc, sbc);
2259 return ret;
2260 }
2261 #endif
2262
2263 return False;
2264 }
2265
2266 /*@}*/
2267
2268
2269 /**
2270 * Mesa extension stubs. These will help reduce portability problems.
2271 */
2272 /*@{*/
2273
2274 /**
2275 * Release all buffers associated with the specified GLX drawable.
2276 *
2277 * \todo
2278 * This function was intended for stand-alone Mesa. The issue there is that
2279 * the library doesn't get any notification when a window is closed. In
2280 * DRI there is a similar but slightly different issue. When GLX 1.3 is
2281 * supported, there are 3 different functions to destroy a drawable. It
2282 * should be possible to create GLX protocol (or have it determine which
2283 * protocol to use based on the type of the drawable) to have one function
2284 * do the work of 3. For the direct-rendering case, this function could
2285 * just call the driver's \c __DRIdrawableRec::destroyDrawable function.
2286 * This would reduce the frequency with which \c __driGarbageCollectDrawables
2287 * would need to be used. This really should be done as part of the new DRI
2288 * interface work.
2289 *
2290 * \sa http://oss.sgi.com/projects/ogl-sample/registry/MESA/release_buffers.txt
2291 * __driGarbageCollectDrawables
2292 * glXDestroyGLXPixmap
2293 * glXDestroyPbuffer glXDestroyPixmap glXDestroyWindow
2294 * glXDestroyGLXPbufferSGIX glXDestroyGLXVideoSourceSGIX
2295 */
2296 static Bool
2297 __glXReleaseBuffersMESA(Display * dpy, GLXDrawable d)
2298 {
2299 (void) dpy;
2300 (void) d;
2301 return False;
2302 }
2303
2304
2305 _GLX_PUBLIC GLXPixmap
2306 glXCreateGLXPixmapMESA(Display * dpy, XVisualInfo * visual,
2307 Pixmap pixmap, Colormap cmap)
2308 {
2309 (void) dpy;
2310 (void) visual;
2311 (void) pixmap;
2312 (void) cmap;
2313 return 0;
2314 }
2315
2316 /*@}*/
2317
2318
2319 /**
2320 * GLX_MESA_copy_sub_buffer
2321 */
2322 #define X_GLXvop_CopySubBufferMESA 5154 /* temporary */
2323 static void
2324 __glXCopySubBufferMESA(Display * dpy, GLXDrawable drawable,
2325 int x, int y, int width, int height)
2326 {
2327 xGLXVendorPrivateReq *req;
2328 struct glx_context *gc;
2329 GLXContextTag tag;
2330 CARD32 *drawable_ptr;
2331 INT32 *x_ptr, *y_ptr, *w_ptr, *h_ptr;
2332 CARD8 opcode;
2333
2334 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
2335 __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable);
2336 if (pdraw != NULL) {
2337 struct glx_screen *psc = pdraw->psc;
2338 if (psc->driScreen->copySubBuffer != NULL) {
2339 (*psc->driScreen->copySubBuffer) (pdraw, x, y, width, height, True);
2340 }
2341
2342 return;
2343 }
2344 #endif
2345
2346 opcode = __glXSetupForCommand(dpy);
2347 if (!opcode)
2348 return;
2349
2350 /*
2351 ** The calling thread may or may not have a current context. If it
2352 ** does, send the context tag so the server can do a flush.
2353 */
2354 gc = __glXGetCurrentContext();
2355 if ((gc != &dummyContext) && (dpy == gc->currentDpy) &&
2356 ((drawable == gc->currentDrawable) ||
2357 (drawable == gc->currentReadable))) {
2358 tag = gc->currentContextTag;
2359 }
2360 else {
2361 tag = 0;
2362 }
2363
2364 LockDisplay(dpy);
2365 GetReqExtra(GLXVendorPrivate, sizeof(CARD32) + sizeof(INT32) * 4, req);
2366 req->reqType = opcode;
2367 req->glxCode = X_GLXVendorPrivate;
2368 req->vendorCode = X_GLXvop_CopySubBufferMESA;
2369 req->contextTag = tag;
2370
2371 drawable_ptr = (CARD32 *) (req + 1);
2372 x_ptr = (INT32 *) (drawable_ptr + 1);
2373 y_ptr = (INT32 *) (drawable_ptr + 2);
2374 w_ptr = (INT32 *) (drawable_ptr + 3);
2375 h_ptr = (INT32 *) (drawable_ptr + 4);
2376
2377 *drawable_ptr = drawable;
2378 *x_ptr = x;
2379 *y_ptr = y;
2380 *w_ptr = width;
2381 *h_ptr = height;
2382
2383 UnlockDisplay(dpy);
2384 SyncHandle();
2385 }
2386
2387 /*@{*/
2388 static void
2389 __glXBindTexImageEXT(Display * dpy,
2390 GLXDrawable drawable, int buffer, const int *attrib_list)
2391 {
2392 struct glx_context *gc = __glXGetCurrentContext();
2393
2394 if (gc->vtable->bind_tex_image == NULL)
2395 return;
2396
2397 gc->vtable->bind_tex_image(dpy, drawable, buffer, attrib_list);
2398 }
2399
2400 static void
2401 __glXReleaseTexImageEXT(Display * dpy, GLXDrawable drawable, int buffer)
2402 {
2403 struct glx_context *gc = __glXGetCurrentContext();
2404
2405 if (gc->vtable->release_tex_image == NULL)
2406 return;
2407
2408 gc->vtable->release_tex_image(dpy, drawable, buffer);
2409 }
2410
2411 /*@}*/
2412
2413 #endif /* GLX_USE_APPLEGL */
2414
2415 /*
2416 ** glXGetProcAddress support
2417 */
2418
2419 struct name_address_pair
2420 {
2421 const char *Name;
2422 GLvoid *Address;
2423 };
2424
2425 #define GLX_FUNCTION(f) { # f, (GLvoid *) f }
2426 #define GLX_FUNCTION2(n,f) { # n, (GLvoid *) f }
2427
2428 static const struct name_address_pair GLX_functions[] = {
2429 /*** GLX_VERSION_1_0 ***/
2430 GLX_FUNCTION(glXChooseVisual),
2431 GLX_FUNCTION(glXCopyContext),
2432 GLX_FUNCTION(glXCreateContext),
2433 GLX_FUNCTION(glXCreateGLXPixmap),
2434 GLX_FUNCTION(glXDestroyContext),
2435 GLX_FUNCTION(glXDestroyGLXPixmap),
2436 GLX_FUNCTION(glXGetConfig),
2437 GLX_FUNCTION(glXGetCurrentContext),
2438 GLX_FUNCTION(glXGetCurrentDrawable),
2439 GLX_FUNCTION(glXIsDirect),
2440 GLX_FUNCTION(glXMakeCurrent),
2441 GLX_FUNCTION(glXQueryExtension),
2442 GLX_FUNCTION(glXQueryVersion),
2443 GLX_FUNCTION(glXSwapBuffers),
2444 GLX_FUNCTION(glXUseXFont),
2445 GLX_FUNCTION(glXWaitGL),
2446 GLX_FUNCTION(glXWaitX),
2447
2448 /*** GLX_VERSION_1_1 ***/
2449 GLX_FUNCTION(glXGetClientString),
2450 GLX_FUNCTION(glXQueryExtensionsString),
2451 GLX_FUNCTION(glXQueryServerString),
2452
2453 /*** GLX_VERSION_1_2 ***/
2454 GLX_FUNCTION(glXGetCurrentDisplay),
2455
2456 /*** GLX_VERSION_1_3 ***/
2457 GLX_FUNCTION(glXChooseFBConfig),
2458 GLX_FUNCTION(glXCreateNewContext),
2459 GLX_FUNCTION(glXCreatePbuffer),
2460 GLX_FUNCTION(glXCreatePixmap),
2461 GLX_FUNCTION(glXCreateWindow),
2462 GLX_FUNCTION(glXDestroyPbuffer),
2463 GLX_FUNCTION(glXDestroyPixmap),
2464 GLX_FUNCTION(glXDestroyWindow),
2465 GLX_FUNCTION(glXGetCurrentReadDrawable),
2466 GLX_FUNCTION(glXGetFBConfigAttrib),
2467 GLX_FUNCTION(glXGetFBConfigs),
2468 GLX_FUNCTION(glXGetSelectedEvent),
2469 GLX_FUNCTION(glXGetVisualFromFBConfig),
2470 GLX_FUNCTION(glXMakeContextCurrent),
2471 GLX_FUNCTION(glXQueryContext),
2472 GLX_FUNCTION(glXQueryDrawable),
2473 GLX_FUNCTION(glXSelectEvent),
2474
2475 #ifndef GLX_USE_APPLEGL
2476 /*** GLX_SGI_swap_control ***/
2477 GLX_FUNCTION2(glXSwapIntervalSGI, __glXSwapIntervalSGI),
2478
2479 /*** GLX_SGI_video_sync ***/
2480 GLX_FUNCTION2(glXGetVideoSyncSGI, __glXGetVideoSyncSGI),
2481 GLX_FUNCTION2(glXWaitVideoSyncSGI, __glXWaitVideoSyncSGI),
2482
2483 /*** GLX_SGI_make_current_read ***/
2484 GLX_FUNCTION2(glXMakeCurrentReadSGI, glXMakeContextCurrent),
2485 GLX_FUNCTION2(glXGetCurrentReadDrawableSGI, glXGetCurrentReadDrawable),
2486
2487 /*** GLX_EXT_import_context ***/
2488 GLX_FUNCTION(glXFreeContextEXT),
2489 GLX_FUNCTION(glXGetContextIDEXT),
2490 GLX_FUNCTION2(glXGetCurrentDisplayEXT, glXGetCurrentDisplay),
2491 GLX_FUNCTION(glXImportContextEXT),
2492 GLX_FUNCTION2(glXQueryContextInfoEXT, glXQueryContext),
2493 #endif
2494
2495 /*** GLX_SGIX_fbconfig ***/
2496 GLX_FUNCTION2(glXGetFBConfigAttribSGIX, glXGetFBConfigAttrib),
2497 GLX_FUNCTION2(glXChooseFBConfigSGIX, glXChooseFBConfig),
2498 GLX_FUNCTION(glXCreateGLXPixmapWithConfigSGIX),
2499 GLX_FUNCTION(glXCreateContextWithConfigSGIX),
2500 GLX_FUNCTION2(glXGetVisualFromFBConfigSGIX, glXGetVisualFromFBConfig),
2501 GLX_FUNCTION(glXGetFBConfigFromVisualSGIX),
2502
2503 #ifndef GLX_USE_APPLEGL
2504 /*** GLX_SGIX_pbuffer ***/
2505 GLX_FUNCTION(glXCreateGLXPbufferSGIX),
2506 GLX_FUNCTION(glXDestroyGLXPbufferSGIX),
2507 GLX_FUNCTION(glXQueryGLXPbufferSGIX),
2508 GLX_FUNCTION(glXSelectEventSGIX),
2509 GLX_FUNCTION(glXGetSelectedEventSGIX),
2510
2511 /*** GLX_MESA_copy_sub_buffer ***/
2512 GLX_FUNCTION2(glXCopySubBufferMESA, __glXCopySubBufferMESA),
2513
2514 /*** GLX_MESA_pixmap_colormap ***/
2515 GLX_FUNCTION(glXCreateGLXPixmapMESA),
2516
2517 /*** GLX_MESA_release_buffers ***/
2518 GLX_FUNCTION2(glXReleaseBuffersMESA, __glXReleaseBuffersMESA),
2519
2520 /*** GLX_MESA_swap_control ***/
2521 GLX_FUNCTION2(glXSwapIntervalMESA, __glXSwapIntervalMESA),
2522 GLX_FUNCTION2(glXGetSwapIntervalMESA, __glXGetSwapIntervalMESA),
2523 #endif
2524
2525 /*** GLX_ARB_get_proc_address ***/
2526 GLX_FUNCTION(glXGetProcAddressARB),
2527
2528 /*** GLX 1.4 ***/
2529 GLX_FUNCTION2(glXGetProcAddress, glXGetProcAddressARB),
2530
2531 #ifndef GLX_USE_APPLEGL
2532 /*** GLX_OML_sync_control ***/
2533 GLX_FUNCTION2(glXWaitForSbcOML, __glXWaitForSbcOML),
2534 GLX_FUNCTION2(glXWaitForMscOML, __glXWaitForMscOML),
2535 GLX_FUNCTION2(glXSwapBuffersMscOML, __glXSwapBuffersMscOML),
2536 GLX_FUNCTION2(glXGetMscRateOML, __glXGetMscRateOML),
2537 GLX_FUNCTION2(glXGetSyncValuesOML, __glXGetSyncValuesOML),
2538
2539 /*** GLX_EXT_texture_from_pixmap ***/
2540 GLX_FUNCTION2(glXBindTexImageEXT, __glXBindTexImageEXT),
2541 GLX_FUNCTION2(glXReleaseTexImageEXT, __glXReleaseTexImageEXT),
2542 #endif
2543
2544 #if defined(GLX_DIRECT_RENDERING) && defined(GLX_USE_DRM)
2545 /*** DRI configuration ***/
2546 GLX_FUNCTION(glXGetScreenDriver),
2547 GLX_FUNCTION(glXGetDriverConfig),
2548 #endif
2549
2550 /*** GLX_ARB_create_context and GLX_ARB_create_context_profile ***/
2551 GLX_FUNCTION(glXCreateContextAttribsARB),
2552
2553 /*** GLX_MESA_query_renderer ***/
2554 GLX_FUNCTION(glXQueryRendererIntegerMESA),
2555 GLX_FUNCTION(glXQueryRendererStringMESA),
2556 GLX_FUNCTION(glXQueryCurrentRendererIntegerMESA),
2557 GLX_FUNCTION(glXQueryCurrentRendererStringMESA),
2558
2559 {NULL, NULL} /* end of list */
2560 };
2561
2562 static const GLvoid *
2563 get_glx_proc_address(const char *funcName)
2564 {
2565 GLuint i;
2566
2567 /* try static functions */
2568 for (i = 0; GLX_functions[i].Name; i++) {
2569 if (strcmp(GLX_functions[i].Name, funcName) == 0)
2570 return GLX_functions[i].Address;
2571 }
2572
2573 return NULL;
2574 }
2575
2576 /**
2577 * Get the address of a named GL function. This is the pre-GLX 1.4 name for
2578 * \c glXGetProcAddress.
2579 *
2580 * \param procName Name of a GL or GLX function.
2581 * \returns A pointer to the named function
2582 *
2583 * \sa glXGetProcAddress
2584 */
2585 _GLX_PUBLIC void (*glXGetProcAddressARB(const GLubyte * procName)) (void)
2586 {
2587 typedef void (*gl_function) (void);
2588 gl_function f;
2589
2590
2591 /* Search the table of GLX and internal functions first. If that
2592 * fails and the supplied name could be a valid core GL name, try
2593 * searching the core GL function table. This check is done to prevent
2594 * DRI based drivers from searching the core GL function table for
2595 * internal API functions.
2596 */
2597 f = (gl_function) get_glx_proc_address((const char *) procName);
2598 if ((f == NULL) && (procName[0] == 'g') && (procName[1] == 'l')
2599 && (procName[2] != 'X')) {
2600 #ifdef GLX_INDIRECT_RENDERING
2601 f = (gl_function) __indirect_get_proc_address((const char *) procName);
2602 #endif
2603 if (!f)
2604 f = (gl_function) _glapi_get_proc_address((const char *) procName);
2605 if (!f) {
2606 struct glx_context *gc = __glXGetCurrentContext();
2607
2608 if (gc != NULL && gc->vtable->get_proc_address != NULL)
2609 f = gc->vtable->get_proc_address((const char *) procName);
2610 }
2611 }
2612 return f;
2613 }
2614
2615 /**
2616 * Get the address of a named GL function. This is the GLX 1.4 name for
2617 * \c glXGetProcAddressARB.
2618 *
2619 * \param procName Name of a GL or GLX function.
2620 * \returns A pointer to the named function
2621 *
2622 * \sa glXGetProcAddressARB
2623 */
2624 _GLX_PUBLIC
2625 GLX_ALIAS(__GLXextFuncPtr, glXGetProcAddress,
2626 (const GLubyte * procName),
2627 (procName), glXGetProcAddressARB)
2628
2629 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
2630 /**
2631 * Get the unadjusted system time (UST). Currently, the UST is measured in
2632 * microseconds since Epoc. The actual resolution of the UST may vary from
2633 * system to system, and the units may vary from release to release.
2634 * Drivers should not call this function directly. They should instead use
2635 * \c glXGetProcAddress to obtain a pointer to the function.
2636 *
2637 * \param ust Location to store the 64-bit UST
2638 * \returns Zero on success or a negative errno value on failure.
2639 *
2640 * \sa glXGetProcAddress, PFNGLXGETUSTPROC
2641 *
2642 * \since Internal API version 20030317.
2643 */
2644 _X_HIDDEN int
2645 __glXGetUST(int64_t * ust)
2646 {
2647 struct timeval tv;
2648
2649 if (ust == NULL) {
2650 return -EFAULT;
2651 }
2652
2653 if (gettimeofday(&tv, NULL) == 0) {
2654 ust[0] = (tv.tv_sec * 1000000) + tv.tv_usec;
2655 return 0;
2656 }
2657 else {
2658 return -errno;
2659 }
2660 }
2661 #endif /* GLX_DIRECT_RENDERING */
2662
2663 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
2664
2665 PUBLIC int
2666 MesaGLInteropGLXQueryDeviceInfo(Display *dpy, GLXContext context,
2667 struct mesa_glinterop_device_info *out)
2668 {
2669 struct glx_context *gc = (struct glx_context*)context;
2670 int ret;
2671
2672 __glXLock();
2673
2674 if (!gc || gc->xid == None || !gc->isDirect) {
2675 __glXUnlock();
2676 return MESA_GLINTEROP_INVALID_CONTEXT;
2677 }
2678
2679 if (!gc->vtable->interop_query_device_info) {
2680 __glXUnlock();
2681 return MESA_GLINTEROP_UNSUPPORTED;
2682 }
2683
2684 ret = gc->vtable->interop_query_device_info(gc, out);
2685 __glXUnlock();
2686 return ret;
2687 }
2688
2689 PUBLIC int
2690 MesaGLInteropGLXExportObject(Display *dpy, GLXContext context,
2691 struct mesa_glinterop_export_in *in,
2692 struct mesa_glinterop_export_out *out)
2693 {
2694 struct glx_context *gc = (struct glx_context*)context;
2695 int ret;
2696
2697 __glXLock();
2698
2699 if (!gc || gc->xid == None || !gc->isDirect) {
2700 __glXUnlock();
2701 return MESA_GLINTEROP_INVALID_CONTEXT;
2702 }
2703
2704 if (!gc->vtable->interop_export_object) {
2705 __glXUnlock();
2706 return MESA_GLINTEROP_UNSUPPORTED;
2707 }
2708
2709 ret = gc->vtable->interop_export_object(gc, in, out);
2710 __glXUnlock();
2711 return ret;
2712 }
2713
2714 #endif /* defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) */