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29b94b8810ee441e696e470b2fde3baedf284da2
[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 #else
47 #include <sys/time.h>
48 #ifdef XF86VIDMODE
49 #include <X11/extensions/xf86vmode.h>
50 #endif
51 #endif
52 #endif
53
54 #include <X11/Xlib-xcb.h>
55 #include <xcb/xcb.h>
56 #include <xcb/glx.h>
57 #include "GL/mesa_glinterop.h"
58
59 static const char __glXGLXClientVendorName[] = "Mesa Project and SGI";
60 static const char __glXGLXClientVersion[] = "1.4";
61
62 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
63
64 /**
65 * Get the __DRIdrawable for the drawable associated with a GLXContext
66 *
67 * \param dpy The display associated with \c drawable.
68 * \param drawable GLXDrawable whose __DRIdrawable part is to be retrieved.
69 * \param scrn_num If non-NULL, the drawables screen is stored there
70 * \returns A pointer to the context's __DRIdrawable on success, or NULL if
71 * the drawable is not associated with a direct-rendering context.
72 */
73 _X_HIDDEN __GLXDRIdrawable *
74 GetGLXDRIDrawable(Display * dpy, GLXDrawable drawable)
75 {
76 struct glx_display *priv = __glXInitialize(dpy);
77 __GLXDRIdrawable *pdraw;
78
79 if (priv == NULL)
80 return NULL;
81
82 if (__glxHashLookup(priv->drawHash, drawable, (void *) &pdraw) == 0)
83 return pdraw;
84
85 return NULL;
86 }
87
88 #endif
89
90 _X_HIDDEN struct glx_drawable *
91 GetGLXDrawable(Display *dpy, GLXDrawable drawable)
92 {
93 struct glx_display *priv = __glXInitialize(dpy);
94 struct glx_drawable *glxDraw;
95
96 if (priv == NULL)
97 return NULL;
98
99 if (__glxHashLookup(priv->glXDrawHash, drawable, (void *) &glxDraw) == 0)
100 return glxDraw;
101
102 return NULL;
103 }
104
105 _X_HIDDEN int
106 InitGLXDrawable(Display *dpy, struct glx_drawable *glxDraw, XID xDrawable,
107 GLXDrawable drawable)
108 {
109 struct glx_display *priv = __glXInitialize(dpy);
110
111 if (!priv)
112 return -1;
113
114 glxDraw->xDrawable = xDrawable;
115 glxDraw->drawable = drawable;
116 glxDraw->lastEventSbc = 0;
117 glxDraw->eventSbcWrap = 0;
118
119 return __glxHashInsert(priv->glXDrawHash, drawable, glxDraw);
120 }
121
122 _X_HIDDEN void
123 DestroyGLXDrawable(Display *dpy, GLXDrawable drawable)
124 {
125 struct glx_display *priv = __glXInitialize(dpy);
126 struct glx_drawable *glxDraw;
127
128 if (!priv)
129 return;
130
131 glxDraw = GetGLXDrawable(dpy, drawable);
132 __glxHashDelete(priv->glXDrawHash, drawable);
133 free(glxDraw);
134 }
135
136 /**
137 * Get the GLX per-screen data structure associated with a GLX context.
138 *
139 * \param dpy Display for which the GLX per-screen information is to be
140 * retrieved.
141 * \param scrn Screen on \c dpy for which the GLX per-screen information is
142 * to be retrieved.
143 * \returns A pointer to the GLX per-screen data if \c dpy and \c scrn
144 * specify a valid GLX screen, or NULL otherwise.
145 *
146 * \todo Should this function validate that \c scrn is within the screen
147 * number range for \c dpy?
148 */
149
150 _X_HIDDEN struct glx_screen *
151 GetGLXScreenConfigs(Display * dpy, int scrn)
152 {
153 struct glx_display *const priv = __glXInitialize(dpy);
154
155 return (priv
156 && priv->screens !=
157 NULL) ? priv->screens[scrn] : NULL;
158 }
159
160
161 static int
162 GetGLXPrivScreenConfig(Display * dpy, int scrn, struct glx_display ** ppriv,
163 struct glx_screen ** ppsc)
164 {
165 /* Initialize the extension, if needed . This has the added value
166 * of initializing/allocating the display private
167 */
168
169 if (dpy == NULL) {
170 return GLX_NO_EXTENSION;
171 }
172
173 *ppriv = __glXInitialize(dpy);
174 if (*ppriv == NULL) {
175 return GLX_NO_EXTENSION;
176 }
177
178 /* Check screen number to see if its valid */
179 if ((scrn < 0) || (scrn >= ScreenCount(dpy))) {
180 return GLX_BAD_SCREEN;
181 }
182
183 /* Check to see if the GL is supported on this screen */
184 *ppsc = (*ppriv)->screens[scrn];
185 if ((*ppsc)->configs == NULL && (*ppsc)->visuals == NULL) {
186 /* No support for GL on this screen regardless of visual */
187 return GLX_BAD_VISUAL;
188 }
189
190 return Success;
191 }
192
193
194 /**
195 * Determine if a \c GLXFBConfig supplied by the application is valid.
196 *
197 * \param dpy Application supplied \c Display pointer.
198 * \param config Application supplied \c GLXFBConfig.
199 *
200 * \returns If the \c GLXFBConfig is valid, the a pointer to the matching
201 * \c struct glx_config structure is returned. Otherwise, \c NULL
202 * is returned.
203 */
204 static struct glx_config *
205 ValidateGLXFBConfig(Display * dpy, GLXFBConfig fbconfig)
206 {
207 struct glx_display *const priv = __glXInitialize(dpy);
208 int num_screens = ScreenCount(dpy);
209 unsigned i;
210 struct glx_config *config;
211
212 if (priv != NULL) {
213 for (i = 0; i < num_screens; i++) {
214 for (config = priv->screens[i]->configs; config != NULL;
215 config = config->next) {
216 if (config == (struct glx_config *) fbconfig) {
217 return config;
218 }
219 }
220 }
221 }
222
223 return NULL;
224 }
225
226 /**
227 * Verifies context's GLX_RENDER_TYPE value with config.
228 *
229 * \param config GLX FBConfig which will support the returned renderType.
230 * \param renderType The context render type to be verified.
231 * \return True if the value of context renderType was approved, or 0 if no
232 * valid value was found.
233 */
234 Bool
235 validate_renderType_against_config(const struct glx_config *config,
236 int renderType)
237 {
238 switch (renderType) {
239 case GLX_RGBA_TYPE:
240 return (config->renderType & GLX_RGBA_BIT) != 0;
241 case GLX_COLOR_INDEX_TYPE:
242 return (config->renderType & GLX_COLOR_INDEX_BIT) != 0;
243 case GLX_RGBA_FLOAT_TYPE_ARB:
244 return (config->renderType & GLX_RGBA_FLOAT_BIT_ARB) != 0;
245 case GLX_RGBA_UNSIGNED_FLOAT_TYPE_EXT:
246 return (config->renderType & GLX_RGBA_UNSIGNED_FLOAT_BIT_EXT) != 0;
247 default:
248 break;
249 }
250 return 0;
251 }
252
253 _X_HIDDEN Bool
254 glx_context_init(struct glx_context *gc,
255 struct glx_screen *psc, struct glx_config *config)
256 {
257 gc->majorOpcode = __glXSetupForCommand(psc->display->dpy);
258 if (!gc->majorOpcode)
259 return False;
260
261 gc->screen = psc->scr;
262 gc->psc = psc;
263 gc->config = config;
264 gc->isDirect = GL_TRUE;
265 gc->currentContextTag = -1;
266
267 return True;
268 }
269
270
271 /**
272 * Create a new context.
273 *
274 * \param renderType For FBConfigs, what is the rendering type?
275 */
276
277 static GLXContext
278 CreateContext(Display *dpy, int generic_id, struct glx_config *config,
279 GLXContext shareList_user, Bool allowDirect,
280 unsigned code, int renderType, int screen)
281 {
282 struct glx_context *gc;
283 struct glx_screen *psc;
284 struct glx_context *shareList = (struct glx_context *) shareList_user;
285 if (dpy == NULL)
286 return NULL;
287
288 psc = GetGLXScreenConfigs(dpy, screen);
289 if (psc == NULL)
290 return NULL;
291
292 if (generic_id == None)
293 return NULL;
294
295 gc = NULL;
296 #ifdef GLX_USE_APPLEGL
297 gc = applegl_create_context(psc, config, shareList, renderType);
298 #else
299 if (allowDirect && psc->vtable->create_context)
300 gc = psc->vtable->create_context(psc, config, shareList, renderType);
301 if (!gc)
302 gc = indirect_create_context(psc, config, shareList, renderType);
303 #endif
304 if (!gc)
305 return NULL;
306
307 LockDisplay(dpy);
308 switch (code) {
309 case X_GLXCreateContext: {
310 xGLXCreateContextReq *req;
311
312 /* Send the glXCreateContext request */
313 GetReq(GLXCreateContext, req);
314 req->reqType = gc->majorOpcode;
315 req->glxCode = X_GLXCreateContext;
316 req->context = gc->xid = XAllocID(dpy);
317 req->visual = generic_id;
318 req->screen = screen;
319 req->shareList = shareList ? shareList->xid : None;
320 req->isDirect = gc->isDirect;
321 break;
322 }
323
324 case X_GLXCreateNewContext: {
325 xGLXCreateNewContextReq *req;
326
327 /* Send the glXCreateNewContext request */
328 GetReq(GLXCreateNewContext, req);
329 req->reqType = gc->majorOpcode;
330 req->glxCode = X_GLXCreateNewContext;
331 req->context = gc->xid = XAllocID(dpy);
332 req->fbconfig = generic_id;
333 req->screen = screen;
334 req->renderType = renderType;
335 req->shareList = shareList ? shareList->xid : None;
336 req->isDirect = gc->isDirect;
337 break;
338 }
339
340 case X_GLXvop_CreateContextWithConfigSGIX: {
341 xGLXVendorPrivateWithReplyReq *vpreq;
342 xGLXCreateContextWithConfigSGIXReq *req;
343
344 /* Send the glXCreateNewContext request */
345 GetReqExtra(GLXVendorPrivateWithReply,
346 sz_xGLXCreateContextWithConfigSGIXReq -
347 sz_xGLXVendorPrivateWithReplyReq, vpreq);
348 req = (xGLXCreateContextWithConfigSGIXReq *) vpreq;
349 req->reqType = gc->majorOpcode;
350 req->glxCode = X_GLXVendorPrivateWithReply;
351 req->vendorCode = X_GLXvop_CreateContextWithConfigSGIX;
352 req->context = gc->xid = XAllocID(dpy);
353 req->fbconfig = generic_id;
354 req->screen = screen;
355 req->renderType = renderType;
356 req->shareList = shareList ? shareList->xid : None;
357 req->isDirect = gc->isDirect;
358 break;
359 }
360
361 default:
362 /* What to do here? This case is the sign of an internal error. It
363 * should never be reachable.
364 */
365 break;
366 }
367
368 UnlockDisplay(dpy);
369 SyncHandle();
370
371 gc->share_xid = shareList ? shareList->xid : None;
372 gc->imported = GL_FALSE;
373
374 return (GLXContext) gc;
375 }
376
377 _GLX_PUBLIC GLXContext
378 glXCreateContext(Display * dpy, XVisualInfo * vis,
379 GLXContext shareList, Bool allowDirect)
380 {
381 struct glx_config *config = NULL;
382 int renderType = GLX_RGBA_TYPE;
383
384 #if defined(GLX_DIRECT_RENDERING) || defined(GLX_USE_APPLEGL)
385 struct glx_screen *const psc = GetGLXScreenConfigs(dpy, vis->screen);
386
387 if (psc)
388 config = glx_config_find_visual(psc->visuals, vis->visualid);
389
390 if (config == NULL) {
391 xError error;
392
393 error.errorCode = BadValue;
394 error.resourceID = vis->visualid;
395 error.sequenceNumber = dpy->request;
396 error.type = X_Error;
397 error.majorCode = __glXSetupForCommand(dpy);
398 error.minorCode = X_GLXCreateContext;
399 _XError(dpy, &error);
400 return None;
401 }
402
403 /* Choose the context render type based on DRI config values. It is
404 * unusual to set this type from config, but we have no other choice, as
405 * this old API does not provide renderType parameter.
406 */
407 if (config->renderType & GLX_RGBA_FLOAT_BIT_ARB) {
408 renderType = GLX_RGBA_FLOAT_TYPE_ARB;
409 } else if (config->renderType & GLX_RGBA_UNSIGNED_FLOAT_BIT_EXT) {
410 renderType = GLX_RGBA_UNSIGNED_FLOAT_TYPE_EXT;
411 } else if (config->renderType & GLX_RGBA_BIT) {
412 renderType = GLX_RGBA_TYPE;
413 } else if (config->renderType & GLX_COLOR_INDEX_BIT) {
414 renderType = GLX_COLOR_INDEX_TYPE;
415 } else if (config->rgbMode) {
416 /* If we're here, then renderType is not set correctly. Let's use a
417 * safeguard - any TrueColor or DirectColor mode is RGB mode. Such
418 * default value is needed by old DRI drivers, which didn't set
419 * renderType correctly as the value was just ignored.
420 */
421 renderType = GLX_RGBA_TYPE;
422 } else {
423 /* Safeguard - only one option left, all non-RGB modes are indexed
424 * modes. Again, this allows drivers with invalid renderType to work
425 * properly.
426 */
427 renderType = GLX_COLOR_INDEX_TYPE;
428 }
429 #endif
430
431 return CreateContext(dpy, vis->visualid, config, shareList, allowDirect,
432 X_GLXCreateContext, renderType, vis->screen);
433 }
434
435 static void
436 glx_send_destroy_context(Display *dpy, XID xid)
437 {
438 CARD8 opcode = __glXSetupForCommand(dpy);
439 xGLXDestroyContextReq *req;
440
441 LockDisplay(dpy);
442 GetReq(GLXDestroyContext, req);
443 req->reqType = opcode;
444 req->glxCode = X_GLXDestroyContext;
445 req->context = xid;
446 UnlockDisplay(dpy);
447 SyncHandle();
448 }
449
450 /*
451 ** Destroy the named context
452 */
453
454 _GLX_PUBLIC void
455 glXDestroyContext(Display * dpy, GLXContext ctx)
456 {
457 struct glx_context *gc = (struct glx_context *) ctx;
458
459 if (gc == NULL || gc->xid == None)
460 return;
461
462 __glXLock();
463 if (!gc->imported)
464 glx_send_destroy_context(dpy, gc->xid);
465
466 if (gc->currentDpy) {
467 /* This context is bound to some thread. According to the man page,
468 * we should not actually delete the context until it's unbound.
469 * Note that we set gc->xid = None above. In MakeContextCurrent()
470 * we check for that and delete the context there.
471 */
472 gc->xid = None;
473 } else {
474 gc->vtable->destroy(gc);
475 }
476 __glXUnlock();
477 }
478
479 /*
480 ** Return the major and minor version #s for the GLX extension
481 */
482 _GLX_PUBLIC Bool
483 glXQueryVersion(Display * dpy, int *major, int *minor)
484 {
485 struct glx_display *priv;
486
487 /* Init the extension. This fetches the major and minor version. */
488 priv = __glXInitialize(dpy);
489 if (!priv)
490 return False;
491
492 if (major)
493 *major = priv->majorVersion;
494 if (minor)
495 *minor = priv->minorVersion;
496 return True;
497 }
498
499 /*
500 ** Query the existence of the GLX extension
501 */
502 _GLX_PUBLIC Bool
503 glXQueryExtension(Display * dpy, int *errorBase, int *eventBase)
504 {
505 int major_op, erb, evb;
506 Bool rv;
507
508 rv = XQueryExtension(dpy, GLX_EXTENSION_NAME, &major_op, &evb, &erb);
509 if (rv) {
510 if (errorBase)
511 *errorBase = erb;
512 if (eventBase)
513 *eventBase = evb;
514 }
515 return rv;
516 }
517
518 /*
519 ** Put a barrier in the token stream that forces the GL to finish its
520 ** work before X can proceed.
521 */
522 _GLX_PUBLIC void
523 glXWaitGL(void)
524 {
525 struct glx_context *gc = __glXGetCurrentContext();
526
527 if (gc != &dummyContext && gc->vtable->wait_gl)
528 gc->vtable->wait_gl(gc);
529 }
530
531 /*
532 ** Put a barrier in the token stream that forces X to finish its
533 ** work before GL can proceed.
534 */
535 _GLX_PUBLIC void
536 glXWaitX(void)
537 {
538 struct glx_context *gc = __glXGetCurrentContext();
539
540 if (gc != &dummyContext && gc->vtable->wait_x)
541 gc->vtable->wait_x(gc);
542 }
543
544 _GLX_PUBLIC void
545 glXUseXFont(Font font, int first, int count, int listBase)
546 {
547 struct glx_context *gc = __glXGetCurrentContext();
548
549 if (gc != &dummyContext && gc->vtable->use_x_font)
550 gc->vtable->use_x_font(gc, font, first, count, listBase);
551 }
552
553 /************************************************************************/
554
555 /*
556 ** Copy the source context to the destination context using the
557 ** attribute "mask".
558 */
559 _GLX_PUBLIC void
560 glXCopyContext(Display * dpy, GLXContext source_user,
561 GLXContext dest_user, unsigned long mask)
562 {
563 struct glx_context *source = (struct glx_context *) source_user;
564 struct glx_context *dest = (struct glx_context *) dest_user;
565 #ifdef GLX_USE_APPLEGL
566 struct glx_context *gc = __glXGetCurrentContext();
567 int errorcode;
568 bool x11error;
569
570 if(apple_glx_copy_context(gc->driContext, source->driContext, dest->driContext,
571 mask, &errorcode, &x11error)) {
572 __glXSendError(dpy, errorcode, 0, X_GLXCopyContext, x11error);
573 }
574
575 #else
576 xGLXCopyContextReq *req;
577 struct glx_context *gc = __glXGetCurrentContext();
578 GLXContextTag tag;
579 CARD8 opcode;
580
581 opcode = __glXSetupForCommand(dpy);
582 if (!opcode) {
583 return;
584 }
585
586 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
587 if (gc->isDirect) {
588 /* NOT_DONE: This does not work yet */
589 }
590 #endif
591
592 /*
593 ** If the source is the current context, send its tag so that the context
594 ** can be flushed before the copy.
595 */
596 if (source == gc && dpy == gc->currentDpy) {
597 tag = gc->currentContextTag;
598 }
599 else {
600 tag = 0;
601 }
602
603 /* Send the glXCopyContext request */
604 LockDisplay(dpy);
605 GetReq(GLXCopyContext, req);
606 req->reqType = opcode;
607 req->glxCode = X_GLXCopyContext;
608 req->source = source ? source->xid : None;
609 req->dest = dest ? dest->xid : None;
610 req->mask = mask;
611 req->contextTag = tag;
612 UnlockDisplay(dpy);
613 SyncHandle();
614 #endif /* GLX_USE_APPLEGL */
615 }
616
617
618 /**
619 * Determine if a context uses direct rendering.
620 *
621 * \param dpy Display where the context was created.
622 * \param contextID ID of the context to be tested.
623 *
624 * \returns \c True if the context is direct rendering or not.
625 */
626 static Bool
627 __glXIsDirect(Display * dpy, GLXContextID contextID)
628 {
629 CARD8 opcode;
630 xcb_connection_t *c;
631 xcb_generic_error_t *err;
632 xcb_glx_is_direct_reply_t *reply;
633 Bool is_direct;
634
635 opcode = __glXSetupForCommand(dpy);
636 if (!opcode) {
637 return False;
638 }
639
640 c = XGetXCBConnection(dpy);
641 reply = xcb_glx_is_direct_reply(c, xcb_glx_is_direct(c, contextID), &err);
642 is_direct = (reply != NULL && reply->is_direct) ? True : False;
643
644 if (err != NULL) {
645 __glXSendErrorForXcb(dpy, err);
646 free(err);
647 }
648
649 free(reply);
650
651 return is_direct;
652 }
653
654 /**
655 * \todo
656 * Shouldn't this function \b always return \c False when
657 * \c GLX_DIRECT_RENDERING is not defined? Do we really need to bother with
658 * the GLX protocol here at all?
659 */
660 _GLX_PUBLIC Bool
661 glXIsDirect(Display * dpy, GLXContext gc_user)
662 {
663 struct glx_context *gc = (struct glx_context *) gc_user;
664
665 if (!gc) {
666 return False;
667 }
668 else if (gc->isDirect) {
669 return True;
670 }
671 #ifdef GLX_USE_APPLEGL /* TODO: indirect on darwin */
672 return False;
673 #else
674 return __glXIsDirect(dpy, gc->xid);
675 #endif
676 }
677
678 _GLX_PUBLIC GLXPixmap
679 glXCreateGLXPixmap(Display * dpy, XVisualInfo * vis, Pixmap pixmap)
680 {
681 #ifdef GLX_USE_APPLEGL
682 int screen = vis->screen;
683 struct glx_screen *const psc = GetGLXScreenConfigs(dpy, screen);
684 const struct glx_config *config;
685
686 config = glx_config_find_visual(psc->visuals, vis->visualid);
687
688 if(apple_glx_pixmap_create(dpy, vis->screen, pixmap, config))
689 return None;
690
691 return pixmap;
692 #else
693 xGLXCreateGLXPixmapReq *req;
694 struct glx_drawable *glxDraw;
695 GLXPixmap xid;
696 CARD8 opcode;
697
698 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
699 struct glx_display *const priv = __glXInitialize(dpy);
700
701 if (priv == NULL)
702 return None;
703 #endif
704
705 opcode = __glXSetupForCommand(dpy);
706 if (!opcode) {
707 return None;
708 }
709
710 glxDraw = malloc(sizeof(*glxDraw));
711 if (!glxDraw)
712 return None;
713
714 /* Send the glXCreateGLXPixmap request */
715 LockDisplay(dpy);
716 GetReq(GLXCreateGLXPixmap, req);
717 req->reqType = opcode;
718 req->glxCode = X_GLXCreateGLXPixmap;
719 req->screen = vis->screen;
720 req->visual = vis->visualid;
721 req->pixmap = pixmap;
722 req->glxpixmap = xid = XAllocID(dpy);
723 UnlockDisplay(dpy);
724 SyncHandle();
725
726 if (InitGLXDrawable(dpy, glxDraw, pixmap, req->glxpixmap)) {
727 free(glxDraw);
728 return None;
729 }
730
731 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
732 do {
733 /* FIXME: Maybe delay __DRIdrawable creation until the drawable
734 * is actually bound to a context... */
735
736 __GLXDRIdrawable *pdraw;
737 struct glx_screen *psc;
738 struct glx_config *config;
739
740 psc = priv->screens[vis->screen];
741 if (psc->driScreen == NULL)
742 return xid;
743
744 config = glx_config_find_visual(psc->visuals, vis->visualid);
745 pdraw = psc->driScreen->createDrawable(psc, pixmap, xid, config);
746 if (pdraw == NULL) {
747 fprintf(stderr, "failed to create pixmap\n");
748 xid = None;
749 break;
750 }
751
752 if (__glxHashInsert(priv->drawHash, xid, pdraw)) {
753 (*pdraw->destroyDrawable) (pdraw);
754 xid = None;
755 break;
756 }
757 } while (0);
758
759 if (xid == None) {
760 xGLXDestroyGLXPixmapReq *dreq;
761 LockDisplay(dpy);
762 GetReq(GLXDestroyGLXPixmap, dreq);
763 dreq->reqType = opcode;
764 dreq->glxCode = X_GLXDestroyGLXPixmap;
765 dreq->glxpixmap = xid;
766 UnlockDisplay(dpy);
767 SyncHandle();
768 }
769 #endif
770
771 return xid;
772 #endif
773 }
774
775 /*
776 ** Destroy the named pixmap
777 */
778 _GLX_PUBLIC void
779 glXDestroyGLXPixmap(Display * dpy, GLXPixmap glxpixmap)
780 {
781 #ifdef GLX_USE_APPLEGL
782 if(apple_glx_pixmap_destroy(dpy, glxpixmap))
783 __glXSendError(dpy, GLXBadPixmap, glxpixmap, X_GLXDestroyPixmap, false);
784 #else
785 xGLXDestroyGLXPixmapReq *req;
786 CARD8 opcode;
787
788 opcode = __glXSetupForCommand(dpy);
789 if (!opcode) {
790 return;
791 }
792
793 /* Send the glXDestroyGLXPixmap request */
794 LockDisplay(dpy);
795 GetReq(GLXDestroyGLXPixmap, req);
796 req->reqType = opcode;
797 req->glxCode = X_GLXDestroyGLXPixmap;
798 req->glxpixmap = glxpixmap;
799 UnlockDisplay(dpy);
800 SyncHandle();
801
802 DestroyGLXDrawable(dpy, glxpixmap);
803
804 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
805 {
806 struct glx_display *const priv = __glXInitialize(dpy);
807 __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, glxpixmap);
808
809 if (priv != NULL && pdraw != NULL) {
810 (*pdraw->destroyDrawable) (pdraw);
811 __glxHashDelete(priv->drawHash, glxpixmap);
812 }
813 }
814 #endif
815 #endif /* GLX_USE_APPLEGL */
816 }
817
818 _GLX_PUBLIC void
819 glXSwapBuffers(Display * dpy, GLXDrawable drawable)
820 {
821 #ifdef GLX_USE_APPLEGL
822 struct glx_context * gc = __glXGetCurrentContext();
823 if(gc != &dummyContext && apple_glx_is_current_drawable(dpy, gc->driContext, drawable)) {
824 apple_glx_swap_buffers(gc->driContext);
825 } else {
826 __glXSendError(dpy, GLXBadCurrentWindow, 0, X_GLXSwapBuffers, false);
827 }
828 #else
829 struct glx_context *gc;
830 GLXContextTag tag;
831 CARD8 opcode;
832 xcb_connection_t *c;
833
834 gc = __glXGetCurrentContext();
835
836 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
837 {
838 __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable);
839
840 if (pdraw != NULL) {
841 Bool flush = gc != &dummyContext && drawable == gc->currentDrawable;
842
843 (*pdraw->psc->driScreen->swapBuffers)(pdraw, 0, 0, 0, flush);
844 return;
845 }
846 }
847 #endif
848
849 opcode = __glXSetupForCommand(dpy);
850 if (!opcode) {
851 return;
852 }
853
854 /*
855 ** The calling thread may or may not have a current context. If it
856 ** does, send the context tag so the server can do a flush.
857 */
858 if ((gc != &dummyContext) && (dpy == gc->currentDpy) &&
859 ((drawable == gc->currentDrawable)
860 || (drawable == gc->currentReadable))) {
861 tag = gc->currentContextTag;
862 }
863 else {
864 tag = 0;
865 }
866
867 c = XGetXCBConnection(dpy);
868 xcb_glx_swap_buffers(c, tag, drawable);
869 xcb_flush(c);
870 #endif /* GLX_USE_APPLEGL */
871 }
872
873
874 /*
875 ** Return configuration information for the given display, screen and
876 ** visual combination.
877 */
878 _GLX_PUBLIC int
879 glXGetConfig(Display * dpy, XVisualInfo * vis, int attribute,
880 int *value_return)
881 {
882 struct glx_display *priv;
883 struct glx_screen *psc;
884 struct glx_config *config;
885 int status;
886
887 status = GetGLXPrivScreenConfig(dpy, vis->screen, &priv, &psc);
888 if (status == Success) {
889 config = glx_config_find_visual(psc->visuals, vis->visualid);
890
891 /* Lookup attribute after first finding a match on the visual */
892 if (config != NULL) {
893 return glx_config_get(config, attribute, value_return);
894 }
895
896 status = GLX_BAD_VISUAL;
897 }
898
899 /*
900 ** If we can't find the config for this visual, this visual is not
901 ** supported by the OpenGL implementation on the server.
902 */
903 if ((status == GLX_BAD_VISUAL) && (attribute == GLX_USE_GL)) {
904 *value_return = False;
905 status = Success;
906 }
907
908 return status;
909 }
910
911 /************************************************************************/
912
913 static void
914 init_fbconfig_for_chooser(struct glx_config * config,
915 GLboolean fbconfig_style_tags)
916 {
917 memset(config, 0, sizeof(struct glx_config));
918 config->visualID = (XID) GLX_DONT_CARE;
919 config->visualType = GLX_DONT_CARE;
920
921 /* glXChooseFBConfig specifies different defaults for these properties than
922 * glXChooseVisual.
923 */
924 if (fbconfig_style_tags) {
925 config->rgbMode = GL_TRUE;
926 config->doubleBufferMode = GLX_DONT_CARE;
927 config->renderType = GLX_RGBA_BIT;
928 }
929
930 config->drawableType = GLX_WINDOW_BIT;
931 config->visualRating = GLX_DONT_CARE;
932 config->transparentPixel = GLX_NONE;
933 config->transparentRed = GLX_DONT_CARE;
934 config->transparentGreen = GLX_DONT_CARE;
935 config->transparentBlue = GLX_DONT_CARE;
936 config->transparentAlpha = GLX_DONT_CARE;
937 config->transparentIndex = GLX_DONT_CARE;
938
939 config->xRenderable = GLX_DONT_CARE;
940 config->fbconfigID = (GLXFBConfigID) (GLX_DONT_CARE);
941
942 config->swapMethod = GLX_DONT_CARE;
943 }
944
945 #define MATCH_DONT_CARE( param ) \
946 do { \
947 if ( ((int) a-> param != (int) GLX_DONT_CARE) \
948 && (a-> param != b-> param) ) { \
949 return False; \
950 } \
951 } while ( 0 )
952
953 #define MATCH_MINIMUM( param ) \
954 do { \
955 if ( ((int) a-> param != (int) GLX_DONT_CARE) \
956 && (a-> param > b-> param) ) { \
957 return False; \
958 } \
959 } while ( 0 )
960
961 #define MATCH_EXACT( param ) \
962 do { \
963 if ( a-> param != b-> param) { \
964 return False; \
965 } \
966 } while ( 0 )
967
968 /* Test that all bits from a are contained in b */
969 #define MATCH_MASK(param) \
970 do { \
971 if ( ((int) a-> param != (int) GLX_DONT_CARE) \
972 && ((a->param & ~b->param) != 0) ) { \
973 return False; \
974 } \
975 } while (0);
976
977 /**
978 * Determine if two GLXFBConfigs are compatible.
979 *
980 * \param a Application specified config to test.
981 * \param b Server specified config to test against \c a.
982 */
983 static Bool
984 fbconfigs_compatible(const struct glx_config * const a,
985 const struct glx_config * const b)
986 {
987 MATCH_DONT_CARE(doubleBufferMode);
988 MATCH_DONT_CARE(visualType);
989 MATCH_DONT_CARE(visualRating);
990 MATCH_DONT_CARE(xRenderable);
991 MATCH_DONT_CARE(fbconfigID);
992 MATCH_DONT_CARE(swapMethod);
993
994 MATCH_MINIMUM(rgbBits);
995 MATCH_MINIMUM(numAuxBuffers);
996 MATCH_MINIMUM(redBits);
997 MATCH_MINIMUM(greenBits);
998 MATCH_MINIMUM(blueBits);
999 MATCH_MINIMUM(alphaBits);
1000 MATCH_MINIMUM(depthBits);
1001 MATCH_MINIMUM(stencilBits);
1002 MATCH_MINIMUM(accumRedBits);
1003 MATCH_MINIMUM(accumGreenBits);
1004 MATCH_MINIMUM(accumBlueBits);
1005 MATCH_MINIMUM(accumAlphaBits);
1006 MATCH_MINIMUM(sampleBuffers);
1007 MATCH_MINIMUM(maxPbufferWidth);
1008 MATCH_MINIMUM(maxPbufferHeight);
1009 MATCH_MINIMUM(maxPbufferPixels);
1010 MATCH_MINIMUM(samples);
1011
1012 MATCH_DONT_CARE(stereoMode);
1013 MATCH_EXACT(level);
1014
1015 MATCH_MASK(drawableType);
1016 MATCH_MASK(renderType);
1017 MATCH_DONT_CARE(sRGBCapable);
1018
1019 /* There is a bug in a few of the XFree86 DDX drivers. They contain
1020 * visuals with a "transparent type" of 0 when they really mean GLX_NONE.
1021 * Technically speaking, it is a bug in the DDX driver, but there is
1022 * enough of an installed base to work around the problem here. In any
1023 * case, 0 is not a valid value of the transparent type, so we'll treat 0
1024 * from the app as GLX_DONT_CARE. We'll consider GLX_NONE from the app and
1025 * 0 from the server to be a match to maintain backward compatibility with
1026 * the (broken) drivers.
1027 */
1028
1029 if (a->transparentPixel != (int) GLX_DONT_CARE && a->transparentPixel != 0) {
1030 if (a->transparentPixel == GLX_NONE) {
1031 if (b->transparentPixel != GLX_NONE && b->transparentPixel != 0)
1032 return False;
1033 }
1034 else {
1035 MATCH_EXACT(transparentPixel);
1036 }
1037
1038 switch (a->transparentPixel) {
1039 case GLX_TRANSPARENT_RGB:
1040 MATCH_DONT_CARE(transparentRed);
1041 MATCH_DONT_CARE(transparentGreen);
1042 MATCH_DONT_CARE(transparentBlue);
1043 MATCH_DONT_CARE(transparentAlpha);
1044 break;
1045
1046 case GLX_TRANSPARENT_INDEX:
1047 MATCH_DONT_CARE(transparentIndex);
1048 break;
1049
1050 default:
1051 break;
1052 }
1053 }
1054
1055 return True;
1056 }
1057
1058
1059 /* There's some trickly language in the GLX spec about how this is supposed
1060 * to work. Basically, if a given component size is either not specified
1061 * or the requested size is zero, it is supposed to act like PERFER_SMALLER.
1062 * Well, that's really hard to do with the code as-is. This behavior is
1063 * closer to correct, but still not technically right.
1064 */
1065 #define PREFER_LARGER_OR_ZERO(comp) \
1066 do { \
1067 if ( ((*a)-> comp) != ((*b)-> comp) ) { \
1068 if ( ((*a)-> comp) == 0 ) { \
1069 return -1; \
1070 } \
1071 else if ( ((*b)-> comp) == 0 ) { \
1072 return 1; \
1073 } \
1074 else { \
1075 return ((*b)-> comp) - ((*a)-> comp) ; \
1076 } \
1077 } \
1078 } while( 0 )
1079
1080 #define PREFER_LARGER(comp) \
1081 do { \
1082 if ( ((*a)-> comp) != ((*b)-> comp) ) { \
1083 return ((*b)-> comp) - ((*a)-> comp) ; \
1084 } \
1085 } while( 0 )
1086
1087 #define PREFER_SMALLER(comp) \
1088 do { \
1089 if ( ((*a)-> comp) != ((*b)-> comp) ) { \
1090 return ((*a)-> comp) - ((*b)-> comp) ; \
1091 } \
1092 } while( 0 )
1093
1094 /**
1095 * Compare two GLXFBConfigs. This function is intended to be used as the
1096 * compare function passed in to qsort.
1097 *
1098 * \returns If \c a is a "better" config, according to the specification of
1099 * SGIX_fbconfig, a number less than zero is returned. If \c b is
1100 * better, then a number greater than zero is return. If both are
1101 * equal, zero is returned.
1102 * \sa qsort, glXChooseVisual, glXChooseFBConfig, glXChooseFBConfigSGIX
1103 */
1104 static int
1105 fbconfig_compare(struct glx_config **a, struct glx_config **b)
1106 {
1107 /* The order of these comparisons must NOT change. It is defined by
1108 * the GLX 1.4 specification.
1109 */
1110
1111 PREFER_SMALLER(visualSelectGroup);
1112
1113 /* The sort order for the visualRating is GLX_NONE, GLX_SLOW, and
1114 * GLX_NON_CONFORMANT_CONFIG. It just so happens that this is the
1115 * numerical sort order of the enums (0x8000, 0x8001, and 0x800D).
1116 */
1117 PREFER_SMALLER(visualRating);
1118
1119 /* This isn't quite right. It is supposed to compare the sum of the
1120 * components the user specifically set minimums for.
1121 */
1122 PREFER_LARGER_OR_ZERO(redBits);
1123 PREFER_LARGER_OR_ZERO(greenBits);
1124 PREFER_LARGER_OR_ZERO(blueBits);
1125 PREFER_LARGER_OR_ZERO(alphaBits);
1126
1127 PREFER_SMALLER(rgbBits);
1128
1129 if (((*a)->doubleBufferMode != (*b)->doubleBufferMode)) {
1130 /* Prefer single-buffer.
1131 */
1132 return (!(*a)->doubleBufferMode) ? -1 : 1;
1133 }
1134
1135 PREFER_SMALLER(numAuxBuffers);
1136
1137 PREFER_SMALLER(sampleBuffers);
1138 PREFER_SMALLER(samples);
1139
1140 PREFER_LARGER_OR_ZERO(depthBits);
1141 PREFER_SMALLER(stencilBits);
1142
1143 /* This isn't quite right. It is supposed to compare the sum of the
1144 * components the user specifically set minimums for.
1145 */
1146 PREFER_LARGER_OR_ZERO(accumRedBits);
1147 PREFER_LARGER_OR_ZERO(accumGreenBits);
1148 PREFER_LARGER_OR_ZERO(accumBlueBits);
1149 PREFER_LARGER_OR_ZERO(accumAlphaBits);
1150
1151 PREFER_SMALLER(visualType);
1152
1153 /* None of the pbuffer or fbconfig specs say that this comparison needs
1154 * to happen at all, but it seems like it should.
1155 */
1156 PREFER_LARGER(maxPbufferWidth);
1157 PREFER_LARGER(maxPbufferHeight);
1158 PREFER_LARGER(maxPbufferPixels);
1159
1160 return 0;
1161 }
1162
1163
1164 /**
1165 * Selects and sorts a subset of the supplied configs based on the attributes.
1166 * This function forms to basis of \c glXChooseFBConfig and
1167 * \c glXChooseFBConfigSGIX.
1168 *
1169 * \param configs Array of pointers to possible configs. The elements of
1170 * this array that do not meet the criteria will be set to
1171 * NULL. The remaining elements will be sorted according to
1172 * the various visual / FBConfig selection rules.
1173 * \param num_configs Number of elements in the \c configs array.
1174 * \param attribList Attributes used select from \c configs. This array is
1175 * terminated by a \c None tag. The array is of the form
1176 * expected by \c glXChooseFBConfig (where every tag has a
1177 * value).
1178 * \returns The number of valid elements left in \c configs.
1179 *
1180 * \sa glXChooseFBConfig, glXChooseFBConfigSGIX
1181 */
1182 static int
1183 choose_fbconfig(struct glx_config ** configs, int num_configs,
1184 const int *attribList)
1185 {
1186 struct glx_config test_config;
1187 int base;
1188 int i;
1189
1190 /* This is a fairly direct implementation of the selection method
1191 * described by GLX_SGIX_fbconfig. Start by culling out all the
1192 * configs that are not compatible with the selected parameter
1193 * list.
1194 */
1195
1196 init_fbconfig_for_chooser(&test_config, GL_TRUE);
1197 __glXInitializeVisualConfigFromTags(&test_config, 512,
1198 (const INT32 *) attribList,
1199 GL_TRUE, GL_TRUE);
1200
1201 base = 0;
1202 for (i = 0; i < num_configs; i++) {
1203 if (fbconfigs_compatible(&test_config, configs[i])) {
1204 configs[base] = configs[i];
1205 base++;
1206 }
1207 }
1208
1209 if (base == 0) {
1210 return 0;
1211 }
1212
1213 if (base < num_configs) {
1214 (void) memset(&configs[base], 0, sizeof(void *) * (num_configs - base));
1215 }
1216
1217 /* After the incompatible configs are removed, the resulting
1218 * list is sorted according to the rules set out in the various
1219 * specifications.
1220 */
1221
1222 qsort(configs, base, sizeof(struct glx_config *),
1223 (int (*)(const void *, const void *)) fbconfig_compare);
1224 return base;
1225 }
1226
1227
1228
1229
1230 /*
1231 ** Return the visual that best matches the template. Return None if no
1232 ** visual matches the template.
1233 */
1234 _GLX_PUBLIC XVisualInfo *
1235 glXChooseVisual(Display * dpy, int screen, int *attribList)
1236 {
1237 XVisualInfo *visualList = NULL;
1238 struct glx_display *priv;
1239 struct glx_screen *psc;
1240 struct glx_config test_config;
1241 struct glx_config *config;
1242 struct glx_config *best_config = NULL;
1243
1244 /*
1245 ** Get a list of all visuals, return if list is empty
1246 */
1247 if (GetGLXPrivScreenConfig(dpy, screen, &priv, &psc) != Success) {
1248 return None;
1249 }
1250
1251
1252 /*
1253 ** Build a template from the defaults and the attribute list
1254 ** Free visual list and return if an unexpected token is encountered
1255 */
1256 init_fbconfig_for_chooser(&test_config, GL_FALSE);
1257 __glXInitializeVisualConfigFromTags(&test_config, 512,
1258 (const INT32 *) attribList,
1259 GL_TRUE, GL_FALSE);
1260
1261 /*
1262 ** Eliminate visuals that don't meet minimum requirements
1263 ** Compute a score for those that do
1264 ** Remember which visual, if any, got the highest score
1265 ** If no visual is acceptable, return None
1266 ** Otherwise, create an XVisualInfo list with just the selected X visual
1267 ** and return this.
1268 */
1269 for (config = psc->visuals; config != NULL; config = config->next) {
1270 if (fbconfigs_compatible(&test_config, config)
1271 && ((best_config == NULL) ||
1272 (fbconfig_compare (&config, &best_config) < 0))) {
1273 XVisualInfo visualTemplate;
1274 XVisualInfo *newList;
1275 int i;
1276
1277 visualTemplate.screen = screen;
1278 visualTemplate.visualid = config->visualID;
1279 newList = XGetVisualInfo(dpy, VisualScreenMask | VisualIDMask,
1280 &visualTemplate, &i);
1281
1282 if (newList) {
1283 free(visualList);
1284 visualList = newList;
1285 best_config = config;
1286 }
1287 }
1288 }
1289
1290 #ifdef GLX_USE_APPLEGL
1291 if(visualList && env_var_as_boolean("LIBGL_DUMP_VISUALID", false)) {
1292 printf("visualid 0x%lx\n", visualList[0].visualid);
1293 }
1294 #endif
1295
1296 return visualList;
1297 }
1298
1299
1300 _GLX_PUBLIC const char *
1301 glXQueryExtensionsString(Display * dpy, int screen)
1302 {
1303 struct glx_screen *psc;
1304 struct glx_display *priv;
1305
1306 if (GetGLXPrivScreenConfig(dpy, screen, &priv, &psc) != Success) {
1307 return NULL;
1308 }
1309
1310 if (!psc->effectiveGLXexts) {
1311 if (!psc->serverGLXexts) {
1312 psc->serverGLXexts =
1313 __glXQueryServerString(dpy, priv->majorOpcode, screen,
1314 GLX_EXTENSIONS);
1315 }
1316
1317 __glXCalculateUsableExtensions(psc,
1318 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
1319 (psc->driScreen != NULL),
1320 #else
1321 GL_FALSE,
1322 #endif
1323 priv->minorVersion);
1324 }
1325
1326 return psc->effectiveGLXexts;
1327 }
1328
1329 _GLX_PUBLIC const char *
1330 glXGetClientString(Display * dpy, int name)
1331 {
1332 (void) dpy;
1333
1334 switch (name) {
1335 case GLX_VENDOR:
1336 return (__glXGLXClientVendorName);
1337 case GLX_VERSION:
1338 return (__glXGLXClientVersion);
1339 case GLX_EXTENSIONS:
1340 return (__glXGetClientExtensions());
1341 default:
1342 return NULL;
1343 }
1344 }
1345
1346 _GLX_PUBLIC const char *
1347 glXQueryServerString(Display * dpy, int screen, int name)
1348 {
1349 struct glx_screen *psc;
1350 struct glx_display *priv;
1351 const char **str;
1352
1353
1354 if (GetGLXPrivScreenConfig(dpy, screen, &priv, &psc) != Success) {
1355 return NULL;
1356 }
1357
1358 switch (name) {
1359 case GLX_VENDOR:
1360 str = &priv->serverGLXvendor;
1361 break;
1362 case GLX_VERSION:
1363 str = &priv->serverGLXversion;
1364 break;
1365 case GLX_EXTENSIONS:
1366 str = &psc->serverGLXexts;
1367 break;
1368 default:
1369 return NULL;
1370 }
1371
1372 if (*str == NULL) {
1373 *str = __glXQueryServerString(dpy, priv->majorOpcode, screen, name);
1374 }
1375
1376 return *str;
1377 }
1378
1379
1380 /*
1381 ** EXT_import_context
1382 */
1383
1384 _GLX_PUBLIC Display *
1385 glXGetCurrentDisplay(void)
1386 {
1387 struct glx_context *gc = __glXGetCurrentContext();
1388 if (gc == &dummyContext)
1389 return NULL;
1390 return gc->currentDpy;
1391 }
1392
1393 _GLX_PUBLIC
1394 GLX_ALIAS(Display *, glXGetCurrentDisplayEXT, (void), (),
1395 glXGetCurrentDisplay)
1396
1397 #ifndef GLX_USE_APPLEGL
1398 _GLX_PUBLIC GLXContext
1399 glXImportContextEXT(Display *dpy, GLXContextID contextID)
1400 {
1401 struct glx_display *priv = __glXInitialize(dpy);
1402 struct glx_screen *psc = NULL;
1403 xGLXQueryContextReply reply;
1404 CARD8 opcode;
1405 struct glx_context *ctx;
1406
1407 /* This GLX implementation knows about 5 different properties, so
1408 * allow the server to send us one of each.
1409 */
1410 int propList[5 * 2], *pProp, nPropListBytes;
1411 int numProps;
1412 int i, renderType;
1413 XID share;
1414 struct glx_config *mode;
1415 uint32_t fbconfigID = 0;
1416 uint32_t visualID = 0;
1417 uint32_t screen = 0;
1418 Bool got_screen = False;
1419
1420 if (priv == NULL)
1421 return NULL;
1422
1423 /* The GLX_EXT_import_context spec says:
1424 *
1425 * "If <contextID> does not refer to a valid context, then a BadContext
1426 * error is generated; if <contextID> refers to direct rendering
1427 * context then no error is generated but glXImportContextEXT returns
1428 * NULL."
1429 *
1430 * If contextID is None, generate BadContext on the client-side. Other
1431 * sorts of invalid contexts will be detected by the server in the
1432 * __glXIsDirect call.
1433 */
1434 if (contextID == None) {
1435 __glXSendError(dpy, GLXBadContext, contextID, X_GLXIsDirect, false);
1436 return NULL;
1437 }
1438
1439 if (__glXIsDirect(dpy, contextID))
1440 return NULL;
1441
1442 opcode = __glXSetupForCommand(dpy);
1443 if (!opcode)
1444 return 0;
1445
1446 /* Send the glXQueryContextInfoEXT request */
1447 LockDisplay(dpy);
1448
1449 if (priv->majorVersion > 1 || priv->minorVersion >= 3) {
1450 xGLXQueryContextReq *req;
1451
1452 GetReq(GLXQueryContext, req);
1453
1454 req->reqType = opcode;
1455 req->glxCode = X_GLXQueryContext;
1456 req->context = contextID;
1457 }
1458 else {
1459 xGLXVendorPrivateReq *vpreq;
1460 xGLXQueryContextInfoEXTReq *req;
1461
1462 GetReqExtra(GLXVendorPrivate,
1463 sz_xGLXQueryContextInfoEXTReq - sz_xGLXVendorPrivateReq,
1464 vpreq);
1465 req = (xGLXQueryContextInfoEXTReq *) vpreq;
1466 req->reqType = opcode;
1467 req->glxCode = X_GLXVendorPrivateWithReply;
1468 req->vendorCode = X_GLXvop_QueryContextInfoEXT;
1469 req->context = contextID;
1470 }
1471
1472 _XReply(dpy, (xReply *) & reply, 0, False);
1473
1474 if (reply.n <= __GLX_MAX_CONTEXT_PROPS)
1475 nPropListBytes = reply.n * 2 * sizeof propList[0];
1476 else
1477 nPropListBytes = 0;
1478 _XRead(dpy, (char *) propList, nPropListBytes);
1479 UnlockDisplay(dpy);
1480 SyncHandle();
1481
1482 numProps = nPropListBytes / (2 * sizeof(propList[0]));
1483 share = None;
1484 mode = NULL;
1485 renderType = GLX_RGBA_TYPE; /* By default, assume RGBA context */
1486 pProp = propList;
1487
1488 for (i = 0, pProp = propList; i < numProps; i++, pProp += 2)
1489 switch (pProp[0]) {
1490 case GLX_SCREEN:
1491 screen = pProp[1];
1492 got_screen = True;
1493 break;
1494 case GLX_SHARE_CONTEXT_EXT:
1495 share = pProp[1];
1496 break;
1497 case GLX_VISUAL_ID_EXT:
1498 visualID = pProp[1];
1499 break;
1500 case GLX_FBCONFIG_ID:
1501 fbconfigID = pProp[1];
1502 break;
1503 case GLX_RENDER_TYPE:
1504 renderType = pProp[1];
1505 break;
1506 }
1507
1508 if (!got_screen)
1509 return NULL;
1510
1511 psc = GetGLXScreenConfigs(dpy, screen);
1512 if (psc == NULL)
1513 return NULL;
1514
1515 if (fbconfigID != 0) {
1516 mode = glx_config_find_fbconfig(psc->configs, fbconfigID);
1517 } else if (visualID != 0) {
1518 mode = glx_config_find_visual(psc->visuals, visualID);
1519 }
1520
1521 if (mode == NULL)
1522 return NULL;
1523
1524 ctx = indirect_create_context(psc, mode, NULL, renderType);
1525 if (ctx == NULL)
1526 return NULL;
1527
1528 ctx->xid = contextID;
1529 ctx->imported = GL_TRUE;
1530 ctx->share_xid = share;
1531
1532 return (GLXContext) ctx;
1533 }
1534
1535 #endif
1536
1537 _GLX_PUBLIC int
1538 glXQueryContext(Display * dpy, GLXContext ctx_user, int attribute, int *value)
1539 {
1540 struct glx_context *ctx = (struct glx_context *) ctx_user;
1541
1542 switch (attribute) {
1543 case GLX_SHARE_CONTEXT_EXT:
1544 *value = ctx->share_xid;
1545 break;
1546 case GLX_VISUAL_ID_EXT:
1547 *value = ctx->config ? ctx->config->visualID : None;
1548 break;
1549 case GLX_SCREEN:
1550 *value = ctx->screen;
1551 break;
1552 case GLX_FBCONFIG_ID:
1553 *value = ctx->config ? ctx->config->fbconfigID : None;
1554 break;
1555 case GLX_RENDER_TYPE:
1556 *value = ctx->renderType;
1557 break;
1558 default:
1559 return GLX_BAD_ATTRIBUTE;
1560 }
1561 return Success;
1562 }
1563
1564 _GLX_PUBLIC
1565 GLX_ALIAS(int, glXQueryContextInfoEXT,
1566 (Display * dpy, GLXContext ctx, int attribute, int *value),
1567 (dpy, ctx, attribute, value), glXQueryContext)
1568
1569 _GLX_PUBLIC GLXContextID glXGetContextIDEXT(const GLXContext ctx_user)
1570 {
1571 struct glx_context *ctx = (struct glx_context *) ctx_user;
1572
1573 return (ctx == NULL) ? None : ctx->xid;
1574 }
1575
1576 _GLX_PUBLIC void
1577 glXFreeContextEXT(Display *dpy, GLXContext ctx)
1578 {
1579 struct glx_context *gc = (struct glx_context *) ctx;
1580
1581 if (gc == NULL || gc->xid == None)
1582 return;
1583
1584 /* The GLX_EXT_import_context spec says:
1585 *
1586 * "glXFreeContext does not free the server-side context information or
1587 * the XID associated with the server-side context."
1588 *
1589 * Don't send any protocol. Just destroy the client-side tracking of the
1590 * context. Also, only release the context structure if it's not current.
1591 */
1592 __glXLock();
1593 if (gc->currentDpy) {
1594 gc->xid = None;
1595 } else {
1596 gc->vtable->destroy(gc);
1597 }
1598 __glXUnlock();
1599 }
1600
1601 _GLX_PUBLIC GLXFBConfig *
1602 glXChooseFBConfig(Display * dpy, int screen,
1603 const int *attribList, int *nitems)
1604 {
1605 struct glx_config **config_list;
1606 int list_size;
1607
1608
1609 config_list = (struct glx_config **)
1610 glXGetFBConfigs(dpy, screen, &list_size);
1611
1612 if ((config_list != NULL) && (list_size > 0) && (attribList != NULL)) {
1613 list_size = choose_fbconfig(config_list, list_size, attribList);
1614 if (list_size == 0) {
1615 free(config_list);
1616 config_list = NULL;
1617 }
1618 }
1619
1620 *nitems = list_size;
1621 return (GLXFBConfig *) config_list;
1622 }
1623
1624
1625 _GLX_PUBLIC GLXContext
1626 glXCreateNewContext(Display * dpy, GLXFBConfig fbconfig,
1627 int renderType, GLXContext shareList, Bool allowDirect)
1628 {
1629 struct glx_config *config = (struct glx_config *) fbconfig;
1630 struct glx_config **config_list;
1631 int list_size;
1632 unsigned i;
1633
1634 if (!config) {
1635 __glXSendError(dpy, GLXBadFBConfig, 0, X_GLXCreateNewContext, false);
1636 return NULL;
1637 }
1638
1639 config_list = (struct glx_config **)
1640 glXGetFBConfigs(dpy, config->screen, &list_size);
1641
1642 for (i = 0; i < list_size; i++) {
1643 if (config_list[i] == config)
1644 break;
1645 }
1646 free(config_list);
1647
1648 if (i == list_size) {
1649 __glXSendError(dpy, GLXBadFBConfig, 0, X_GLXCreateNewContext, false);
1650 return NULL;
1651 }
1652
1653 return CreateContext(dpy, config->fbconfigID, config, shareList,
1654 allowDirect, X_GLXCreateNewContext, renderType,
1655 config->screen);
1656 }
1657
1658
1659 _GLX_PUBLIC GLXDrawable
1660 glXGetCurrentReadDrawable(void)
1661 {
1662 struct glx_context *gc = __glXGetCurrentContext();
1663
1664 return gc->currentReadable;
1665 }
1666
1667
1668 _GLX_PUBLIC GLXFBConfig *
1669 glXGetFBConfigs(Display * dpy, int screen, int *nelements)
1670 {
1671 struct glx_display *priv = __glXInitialize(dpy);
1672 struct glx_config **config_list = NULL;
1673 struct glx_config *config;
1674 unsigned num_configs = 0;
1675 int i;
1676
1677 *nelements = 0;
1678 if (priv && (priv->screens != NULL)
1679 && (screen >= 0) && (screen < ScreenCount(dpy))
1680 && (priv->screens[screen]->configs != NULL)
1681 && (priv->screens[screen]->configs->fbconfigID
1682 != (int) GLX_DONT_CARE)) {
1683
1684 for (config = priv->screens[screen]->configs; config != NULL;
1685 config = config->next) {
1686 if (config->fbconfigID != (int) GLX_DONT_CARE) {
1687 num_configs++;
1688 }
1689 }
1690
1691 config_list = malloc(num_configs * sizeof *config_list);
1692 if (config_list != NULL) {
1693 *nelements = num_configs;
1694 i = 0;
1695 for (config = priv->screens[screen]->configs; config != NULL;
1696 config = config->next) {
1697 if (config->fbconfigID != (int) GLX_DONT_CARE) {
1698 config_list[i] = config;
1699 i++;
1700 }
1701 }
1702 }
1703 }
1704
1705 return (GLXFBConfig *) config_list;
1706 }
1707
1708
1709 _GLX_PUBLIC int
1710 glXGetFBConfigAttrib(Display * dpy, GLXFBConfig fbconfig,
1711 int attribute, int *value)
1712 {
1713 struct glx_config *config = ValidateGLXFBConfig(dpy, fbconfig);
1714
1715 if (config == NULL)
1716 return GLXBadFBConfig;
1717
1718 return glx_config_get(config, attribute, value);
1719 }
1720
1721
1722 _GLX_PUBLIC XVisualInfo *
1723 glXGetVisualFromFBConfig(Display * dpy, GLXFBConfig fbconfig)
1724 {
1725 XVisualInfo visualTemplate;
1726 struct glx_config *config = (struct glx_config *) fbconfig;
1727 int count;
1728
1729 /*
1730 ** Get a list of all visuals, return if list is empty
1731 */
1732 visualTemplate.visualid = config->visualID;
1733 return XGetVisualInfo(dpy, VisualIDMask, &visualTemplate, &count);
1734 }
1735
1736 #ifndef GLX_USE_APPLEGL
1737 /*
1738 ** GLX_SGI_swap_control
1739 */
1740 static int
1741 __glXSwapIntervalSGI(int interval)
1742 {
1743 xGLXVendorPrivateReq *req;
1744 struct glx_context *gc = __glXGetCurrentContext();
1745 struct glx_screen *psc;
1746 Display *dpy;
1747 CARD32 *interval_ptr;
1748 CARD8 opcode;
1749
1750 if (gc == &dummyContext) {
1751 return GLX_BAD_CONTEXT;
1752 }
1753
1754 if (interval <= 0) {
1755 return GLX_BAD_VALUE;
1756 }
1757
1758 psc = GetGLXScreenConfigs( gc->currentDpy, gc->screen);
1759
1760 #ifdef GLX_DIRECT_RENDERING
1761 if (gc->isDirect && psc && psc->driScreen &&
1762 psc->driScreen->setSwapInterval) {
1763 __GLXDRIdrawable *pdraw =
1764 GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable);
1765 /* Simply ignore the command if the GLX drawable has been destroyed but
1766 * the context is still bound.
1767 */
1768 if (pdraw)
1769 psc->driScreen->setSwapInterval(pdraw, interval);
1770 return 0;
1771 }
1772 #endif
1773
1774 dpy = gc->currentDpy;
1775 opcode = __glXSetupForCommand(dpy);
1776 if (!opcode) {
1777 return 0;
1778 }
1779
1780 /* Send the glXSwapIntervalSGI request */
1781 LockDisplay(dpy);
1782 GetReqExtra(GLXVendorPrivate, sizeof(CARD32), req);
1783 req->reqType = opcode;
1784 req->glxCode = X_GLXVendorPrivate;
1785 req->vendorCode = X_GLXvop_SwapIntervalSGI;
1786 req->contextTag = gc->currentContextTag;
1787
1788 interval_ptr = (CARD32 *) (req + 1);
1789 *interval_ptr = interval;
1790
1791 UnlockDisplay(dpy);
1792 SyncHandle();
1793 XFlush(dpy);
1794
1795 return 0;
1796 }
1797
1798
1799 /*
1800 ** GLX_MESA_swap_control
1801 */
1802 static int
1803 __glXSwapIntervalMESA(unsigned int interval)
1804 {
1805 #ifdef GLX_DIRECT_RENDERING
1806 struct glx_context *gc = __glXGetCurrentContext();
1807
1808 if (gc != &dummyContext && gc->isDirect) {
1809 struct glx_screen *psc;
1810
1811 psc = GetGLXScreenConfigs( gc->currentDpy, gc->screen);
1812 if (psc && psc->driScreen && psc->driScreen->setSwapInterval) {
1813 __GLXDRIdrawable *pdraw =
1814 GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable);
1815
1816 /* Simply ignore the command if the GLX drawable has been destroyed but
1817 * the context is still bound.
1818 */
1819 if (!pdraw)
1820 return 0;
1821
1822 return psc->driScreen->setSwapInterval(pdraw, interval);
1823 }
1824 }
1825 #endif
1826
1827 return GLX_BAD_CONTEXT;
1828 }
1829
1830
1831 static int
1832 __glXGetSwapIntervalMESA(void)
1833 {
1834 #ifdef GLX_DIRECT_RENDERING
1835 struct glx_context *gc = __glXGetCurrentContext();
1836
1837 if (gc != &dummyContext && gc->isDirect) {
1838 struct glx_screen *psc;
1839
1840 psc = GetGLXScreenConfigs( gc->currentDpy, gc->screen);
1841 if (psc && psc->driScreen && psc->driScreen->getSwapInterval) {
1842 __GLXDRIdrawable *pdraw =
1843 GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable);
1844 if (pdraw)
1845 return psc->driScreen->getSwapInterval(pdraw);
1846 }
1847 }
1848 #endif
1849
1850 return 0;
1851 }
1852
1853
1854 /*
1855 ** GLX_SGI_video_sync
1856 */
1857 static int
1858 __glXGetVideoSyncSGI(unsigned int *count)
1859 {
1860 int64_t ust, msc, sbc;
1861 int ret;
1862 struct glx_context *gc = __glXGetCurrentContext();
1863 struct glx_screen *psc;
1864 #ifdef GLX_DIRECT_RENDERING
1865 __GLXDRIdrawable *pdraw;
1866 #endif
1867
1868 if (gc == &dummyContext)
1869 return GLX_BAD_CONTEXT;
1870
1871 #ifdef GLX_DIRECT_RENDERING
1872 if (!gc->isDirect)
1873 return GLX_BAD_CONTEXT;
1874 #endif
1875
1876 psc = GetGLXScreenConfigs(gc->currentDpy, gc->screen);
1877 #ifdef GLX_DIRECT_RENDERING
1878 pdraw = GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable);
1879 #endif
1880
1881 /* FIXME: Looking at the GLX_SGI_video_sync spec in the extension registry,
1882 * FIXME: there should be a GLX encoding for this call. I can find no
1883 * FIXME: documentation for the GLX encoding.
1884 */
1885 #ifdef GLX_DIRECT_RENDERING
1886 if (psc && psc->driScreen && psc->driScreen->getDrawableMSC) {
1887 ret = psc->driScreen->getDrawableMSC(psc, pdraw, &ust, &msc, &sbc);
1888 *count = (unsigned) msc;
1889 return (ret == True) ? 0 : GLX_BAD_CONTEXT;
1890 }
1891 #endif
1892
1893 return GLX_BAD_CONTEXT;
1894 }
1895
1896 static int
1897 __glXWaitVideoSyncSGI(int divisor, int remainder, unsigned int *count)
1898 {
1899 struct glx_context *gc = __glXGetCurrentContext();
1900 struct glx_screen *psc;
1901 #ifdef GLX_DIRECT_RENDERING
1902 __GLXDRIdrawable *pdraw;
1903 #endif
1904 int64_t ust, msc, sbc;
1905 int ret;
1906
1907 if (divisor <= 0 || remainder < 0)
1908 return GLX_BAD_VALUE;
1909
1910 if (gc == &dummyContext)
1911 return GLX_BAD_CONTEXT;
1912
1913 #ifdef GLX_DIRECT_RENDERING
1914 if (!gc->isDirect)
1915 return GLX_BAD_CONTEXT;
1916 #endif
1917
1918 psc = GetGLXScreenConfigs( gc->currentDpy, gc->screen);
1919 #ifdef GLX_DIRECT_RENDERING
1920 pdraw = GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable);
1921 #endif
1922
1923 #ifdef GLX_DIRECT_RENDERING
1924 if (psc && psc->driScreen && psc->driScreen->waitForMSC) {
1925 ret = psc->driScreen->waitForMSC(pdraw, 0, divisor, remainder, &ust, &msc,
1926 &sbc);
1927 *count = (unsigned) msc;
1928 return (ret == True) ? 0 : GLX_BAD_CONTEXT;
1929 }
1930 #endif
1931
1932 return GLX_BAD_CONTEXT;
1933 }
1934
1935 #endif /* GLX_USE_APPLEGL */
1936
1937 /*
1938 ** GLX_SGIX_fbconfig
1939 ** Many of these functions are aliased to GLX 1.3 entry points in the
1940 ** GLX_functions table.
1941 */
1942
1943 _GLX_PUBLIC
1944 GLX_ALIAS(int, glXGetFBConfigAttribSGIX,
1945 (Display * dpy, GLXFBConfigSGIX config, int attribute, int *value),
1946 (dpy, config, attribute, value), glXGetFBConfigAttrib)
1947
1948 _GLX_PUBLIC GLX_ALIAS(GLXFBConfigSGIX *, glXChooseFBConfigSGIX,
1949 (Display * dpy, int screen, int *attrib_list,
1950 int *nelements), (dpy, screen, attrib_list, nelements),
1951 glXChooseFBConfig)
1952
1953 _GLX_PUBLIC GLX_ALIAS(XVisualInfo *, glXGetVisualFromFBConfigSGIX,
1954 (Display * dpy, GLXFBConfigSGIX config),
1955 (dpy, config), glXGetVisualFromFBConfig)
1956
1957 _GLX_PUBLIC GLXPixmap
1958 glXCreateGLXPixmapWithConfigSGIX(Display * dpy,
1959 GLXFBConfigSGIX fbconfig,
1960 Pixmap pixmap)
1961 {
1962 #ifndef GLX_USE_APPLEGL
1963 xGLXVendorPrivateWithReplyReq *vpreq;
1964 xGLXCreateGLXPixmapWithConfigSGIXReq *req;
1965 GLXPixmap xid = None;
1966 CARD8 opcode;
1967 struct glx_screen *psc;
1968 #endif
1969 struct glx_config *config = (struct glx_config *) fbconfig;
1970
1971
1972 if ((dpy == NULL) || (config == NULL)) {
1973 return None;
1974 }
1975 #ifdef GLX_USE_APPLEGL
1976 if(apple_glx_pixmap_create(dpy, config->screen, pixmap, config))
1977 return None;
1978 return pixmap;
1979 #else
1980
1981 psc = GetGLXScreenConfigs(dpy, config->screen);
1982 if ((psc != NULL)
1983 && __glXExtensionBitIsEnabled(psc, SGIX_fbconfig_bit)) {
1984 opcode = __glXSetupForCommand(dpy);
1985 if (!opcode) {
1986 return None;
1987 }
1988
1989 /* Send the glXCreateGLXPixmapWithConfigSGIX request */
1990 LockDisplay(dpy);
1991 GetReqExtra(GLXVendorPrivateWithReply,
1992 sz_xGLXCreateGLXPixmapWithConfigSGIXReq -
1993 sz_xGLXVendorPrivateWithReplyReq, vpreq);
1994 req = (xGLXCreateGLXPixmapWithConfigSGIXReq *) vpreq;
1995 req->reqType = opcode;
1996 req->glxCode = X_GLXVendorPrivateWithReply;
1997 req->vendorCode = X_GLXvop_CreateGLXPixmapWithConfigSGIX;
1998 req->screen = config->screen;
1999 req->fbconfig = config->fbconfigID;
2000 req->pixmap = pixmap;
2001 req->glxpixmap = xid = XAllocID(dpy);
2002 UnlockDisplay(dpy);
2003 SyncHandle();
2004 }
2005
2006 return xid;
2007 #endif
2008 }
2009
2010 _GLX_PUBLIC GLXContext
2011 glXCreateContextWithConfigSGIX(Display * dpy,
2012 GLXFBConfigSGIX fbconfig, int renderType,
2013 GLXContext shareList, Bool allowDirect)
2014 {
2015 GLXContext gc = NULL;
2016 struct glx_config *config = (struct glx_config *) fbconfig;
2017 struct glx_screen *psc;
2018
2019
2020 if ((dpy == NULL) || (config == NULL)) {
2021 return None;
2022 }
2023
2024 psc = GetGLXScreenConfigs(dpy, config->screen);
2025 if ((psc != NULL)
2026 && __glXExtensionBitIsEnabled(psc, SGIX_fbconfig_bit)) {
2027 gc = CreateContext(dpy, config->fbconfigID, config, shareList,
2028 allowDirect,
2029 X_GLXvop_CreateContextWithConfigSGIX, renderType,
2030 config->screen);
2031 }
2032
2033 return gc;
2034 }
2035
2036
2037 _GLX_PUBLIC GLXFBConfigSGIX
2038 glXGetFBConfigFromVisualSGIX(Display * dpy, XVisualInfo * vis)
2039 {
2040 struct glx_display *priv;
2041 struct glx_screen *psc = NULL;
2042
2043 if ((GetGLXPrivScreenConfig(dpy, vis->screen, &priv, &psc) == Success)
2044 && __glXExtensionBitIsEnabled(psc, SGIX_fbconfig_bit)
2045 && (psc->configs->fbconfigID != (int) GLX_DONT_CARE)) {
2046 return (GLXFBConfigSGIX) glx_config_find_visual(psc->configs,
2047 vis->visualid);
2048 }
2049
2050 return NULL;
2051 }
2052
2053 #ifndef GLX_USE_APPLEGL
2054 /*
2055 ** GLX_SGIX_swap_group
2056 */
2057 static void
2058 __glXJoinSwapGroupSGIX(Display * dpy, GLXDrawable drawable,
2059 GLXDrawable member)
2060 {
2061 (void) dpy;
2062 (void) drawable;
2063 (void) member;
2064 }
2065
2066
2067 /*
2068 ** GLX_SGIX_swap_barrier
2069 */
2070 static void
2071 __glXBindSwapBarrierSGIX(Display * dpy, GLXDrawable drawable, int barrier)
2072 {
2073 (void) dpy;
2074 (void) drawable;
2075 (void) barrier;
2076 }
2077
2078 static Bool
2079 __glXQueryMaxSwapBarriersSGIX(Display * dpy, int screen, int *max)
2080 {
2081 (void) dpy;
2082 (void) screen;
2083 (void) max;
2084 return False;
2085 }
2086
2087
2088 /*
2089 ** GLX_OML_sync_control
2090 */
2091 static Bool
2092 __glXGetSyncValuesOML(Display * dpy, GLXDrawable drawable,
2093 int64_t * ust, int64_t * msc, int64_t * sbc)
2094 {
2095 struct glx_display * const priv = __glXInitialize(dpy);
2096 int ret;
2097 #ifdef GLX_DIRECT_RENDERING
2098 __GLXDRIdrawable *pdraw;
2099 #endif
2100 struct glx_screen *psc;
2101
2102 if (!priv)
2103 return False;
2104
2105 #ifdef GLX_DIRECT_RENDERING
2106 pdraw = GetGLXDRIDrawable(dpy, drawable);
2107 psc = pdraw ? pdraw->psc : NULL;
2108 if (pdraw && psc->driScreen->getDrawableMSC) {
2109 ret = psc->driScreen->getDrawableMSC(psc, pdraw, ust, msc, sbc);
2110 return ret;
2111 }
2112 #endif
2113
2114 return False;
2115 }
2116
2117 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
2118 _X_HIDDEN GLboolean
2119 __glxGetMscRate(struct glx_screen *psc,
2120 int32_t * numerator, int32_t * denominator)
2121 {
2122 #ifdef XF86VIDMODE
2123 XF86VidModeModeLine mode_line;
2124 int dot_clock;
2125 int i;
2126
2127 if (XF86VidModeQueryVersion(psc->dpy, &i, &i) &&
2128 XF86VidModeGetModeLine(psc->dpy, psc->scr, &dot_clock, &mode_line)) {
2129 unsigned n = dot_clock * 1000;
2130 unsigned d = mode_line.vtotal * mode_line.htotal;
2131
2132 # define V_INTERLACE 0x010
2133 # define V_DBLSCAN 0x020
2134
2135 if (mode_line.flags & V_INTERLACE)
2136 n *= 2;
2137 else if (mode_line.flags & V_DBLSCAN)
2138 d *= 2;
2139
2140 /* The OML_sync_control spec requires that if the refresh rate is a
2141 * whole number, that the returned numerator be equal to the refresh
2142 * rate and the denominator be 1.
2143 */
2144
2145 if (n % d == 0) {
2146 n /= d;
2147 d = 1;
2148 }
2149 else {
2150 static const unsigned f[] = { 13, 11, 7, 5, 3, 2, 0 };
2151
2152 /* This is a poor man's way to reduce a fraction. It's far from
2153 * perfect, but it will work well enough for this situation.
2154 */
2155
2156 for (i = 0; f[i] != 0; i++) {
2157 while (n % f[i] == 0 && d % f[i] == 0) {
2158 d /= f[i];
2159 n /= f[i];
2160 }
2161 }
2162 }
2163
2164 *numerator = n;
2165 *denominator = d;
2166
2167 return True;
2168 }
2169 else
2170 #endif
2171
2172 return False;
2173 }
2174 #endif
2175
2176 /**
2177 * Determine the refresh rate of the specified drawable and display.
2178 *
2179 * \param dpy Display whose refresh rate is to be determined.
2180 * \param drawable Drawable whose refresh rate is to be determined.
2181 * \param numerator Numerator of the refresh rate.
2182 * \param demoninator Denominator of the refresh rate.
2183 * \return If the refresh rate for the specified display and drawable could
2184 * be calculated, True is returned. Otherwise False is returned.
2185 *
2186 * \note This function is implemented entirely client-side. A lot of other
2187 * functionality is required to export GLX_OML_sync_control, so on
2188 * XFree86 this function can be called for direct-rendering contexts
2189 * when GLX_OML_sync_control appears in the client extension string.
2190 */
2191
2192 _X_HIDDEN GLboolean
2193 __glXGetMscRateOML(Display * dpy, GLXDrawable drawable,
2194 int32_t * numerator, int32_t * denominator)
2195 {
2196 #if defined( GLX_DIRECT_RENDERING ) && defined( XF86VIDMODE )
2197 __GLXDRIdrawable *draw = GetGLXDRIDrawable(dpy, drawable);
2198
2199 if (draw == NULL)
2200 return False;
2201
2202 return __glxGetMscRate(draw->psc, numerator, denominator);
2203 #else
2204 (void) dpy;
2205 (void) drawable;
2206 (void) numerator;
2207 (void) denominator;
2208 #endif
2209 return False;
2210 }
2211
2212
2213 static int64_t
2214 __glXSwapBuffersMscOML(Display * dpy, GLXDrawable drawable,
2215 int64_t target_msc, int64_t divisor, int64_t remainder)
2216 {
2217 struct glx_context *gc = __glXGetCurrentContext();
2218 #ifdef GLX_DIRECT_RENDERING
2219 __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable);
2220 struct glx_screen *psc = pdraw ? pdraw->psc : NULL;
2221 #endif
2222
2223 if (gc == &dummyContext) /* no GLX for this */
2224 return -1;
2225
2226 #ifdef GLX_DIRECT_RENDERING
2227 if (!pdraw || !gc->isDirect)
2228 return -1;
2229 #endif
2230
2231 /* The OML_sync_control spec says these should "generate a GLX_BAD_VALUE
2232 * error", but it also says "It [glXSwapBuffersMscOML] will return a value
2233 * of -1 if the function failed because of errors detected in the input
2234 * parameters"
2235 */
2236 if (divisor < 0 || remainder < 0 || target_msc < 0)
2237 return -1;
2238 if (divisor > 0 && remainder >= divisor)
2239 return -1;
2240
2241 if (target_msc == 0 && divisor == 0 && remainder == 0)
2242 remainder = 1;
2243
2244 #ifdef GLX_DIRECT_RENDERING
2245 if (psc->driScreen && psc->driScreen->swapBuffers)
2246 return (*psc->driScreen->swapBuffers)(pdraw, target_msc, divisor,
2247 remainder, False);
2248 #endif
2249
2250 return -1;
2251 }
2252
2253
2254 static Bool
2255 __glXWaitForMscOML(Display * dpy, GLXDrawable drawable,
2256 int64_t target_msc, int64_t divisor,
2257 int64_t remainder, int64_t * ust,
2258 int64_t * msc, int64_t * sbc)
2259 {
2260 #ifdef GLX_DIRECT_RENDERING
2261 __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable);
2262 struct glx_screen *psc = pdraw ? pdraw->psc : NULL;
2263 int ret;
2264 #endif
2265
2266
2267 /* The OML_sync_control spec says these should "generate a GLX_BAD_VALUE
2268 * error", but the return type in the spec is Bool.
2269 */
2270 if (divisor < 0 || remainder < 0 || target_msc < 0)
2271 return False;
2272 if (divisor > 0 && remainder >= divisor)
2273 return False;
2274
2275 #ifdef GLX_DIRECT_RENDERING
2276 if (pdraw && psc->driScreen && psc->driScreen->waitForMSC) {
2277 ret = psc->driScreen->waitForMSC(pdraw, target_msc, divisor, remainder,
2278 ust, msc, sbc);
2279 return ret;
2280 }
2281 #endif
2282
2283 return False;
2284 }
2285
2286
2287 static Bool
2288 __glXWaitForSbcOML(Display * dpy, GLXDrawable drawable,
2289 int64_t target_sbc, int64_t * ust,
2290 int64_t * msc, int64_t * sbc)
2291 {
2292 #ifdef GLX_DIRECT_RENDERING
2293 __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable);
2294 struct glx_screen *psc = pdraw ? pdraw->psc : NULL;
2295 int ret;
2296 #endif
2297
2298 /* The OML_sync_control spec says this should "generate a GLX_BAD_VALUE
2299 * error", but the return type in the spec is Bool.
2300 */
2301 if (target_sbc < 0)
2302 return False;
2303
2304 #ifdef GLX_DIRECT_RENDERING
2305 if (pdraw && psc->driScreen && psc->driScreen->waitForSBC) {
2306 ret = psc->driScreen->waitForSBC(pdraw, target_sbc, ust, msc, sbc);
2307 return ret;
2308 }
2309 #endif
2310
2311 return False;
2312 }
2313
2314 /*@}*/
2315
2316
2317 /**
2318 * Mesa extension stubs. These will help reduce portability problems.
2319 */
2320 /*@{*/
2321
2322 /**
2323 * Release all buffers associated with the specified GLX drawable.
2324 *
2325 * \todo
2326 * This function was intended for stand-alone Mesa. The issue there is that
2327 * the library doesn't get any notification when a window is closed. In
2328 * DRI there is a similar but slightly different issue. When GLX 1.3 is
2329 * supported, there are 3 different functions to destroy a drawable. It
2330 * should be possible to create GLX protocol (or have it determine which
2331 * protocol to use based on the type of the drawable) to have one function
2332 * do the work of 3. For the direct-rendering case, this function could
2333 * just call the driver's \c __DRIdrawableRec::destroyDrawable function.
2334 * This would reduce the frequency with which \c __driGarbageCollectDrawables
2335 * would need to be used. This really should be done as part of the new DRI
2336 * interface work.
2337 *
2338 * \sa http://oss.sgi.com/projects/ogl-sample/registry/MESA/release_buffers.txt
2339 * __driGarbageCollectDrawables
2340 * glXDestroyGLXPixmap
2341 * glXDestroyPbuffer glXDestroyPixmap glXDestroyWindow
2342 * glXDestroyGLXPbufferSGIX glXDestroyGLXVideoSourceSGIX
2343 */
2344 static Bool
2345 __glXReleaseBuffersMESA(Display * dpy, GLXDrawable d)
2346 {
2347 (void) dpy;
2348 (void) d;
2349 return False;
2350 }
2351
2352
2353 _GLX_PUBLIC GLXPixmap
2354 glXCreateGLXPixmapMESA(Display * dpy, XVisualInfo * visual,
2355 Pixmap pixmap, Colormap cmap)
2356 {
2357 (void) dpy;
2358 (void) visual;
2359 (void) pixmap;
2360 (void) cmap;
2361 return 0;
2362 }
2363
2364 /*@}*/
2365
2366
2367 /**
2368 * GLX_MESA_copy_sub_buffer
2369 */
2370 #define X_GLXvop_CopySubBufferMESA 5154 /* temporary */
2371 static void
2372 __glXCopySubBufferMESA(Display * dpy, GLXDrawable drawable,
2373 int x, int y, int width, int height)
2374 {
2375 xGLXVendorPrivateReq *req;
2376 struct glx_context *gc;
2377 GLXContextTag tag;
2378 CARD32 *drawable_ptr;
2379 INT32 *x_ptr, *y_ptr, *w_ptr, *h_ptr;
2380 CARD8 opcode;
2381
2382 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
2383 __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable);
2384 if (pdraw != NULL) {
2385 struct glx_screen *psc = pdraw->psc;
2386 if (psc->driScreen->copySubBuffer != NULL) {
2387 (*psc->driScreen->copySubBuffer) (pdraw, x, y, width, height, True);
2388 }
2389
2390 return;
2391 }
2392 #endif
2393
2394 opcode = __glXSetupForCommand(dpy);
2395 if (!opcode)
2396 return;
2397
2398 /*
2399 ** The calling thread may or may not have a current context. If it
2400 ** does, send the context tag so the server can do a flush.
2401 */
2402 gc = __glXGetCurrentContext();
2403 if ((gc != &dummyContext) && (dpy == gc->currentDpy) &&
2404 ((drawable == gc->currentDrawable) ||
2405 (drawable == gc->currentReadable))) {
2406 tag = gc->currentContextTag;
2407 }
2408 else {
2409 tag = 0;
2410 }
2411
2412 LockDisplay(dpy);
2413 GetReqExtra(GLXVendorPrivate, sizeof(CARD32) + sizeof(INT32) * 4, req);
2414 req->reqType = opcode;
2415 req->glxCode = X_GLXVendorPrivate;
2416 req->vendorCode = X_GLXvop_CopySubBufferMESA;
2417 req->contextTag = tag;
2418
2419 drawable_ptr = (CARD32 *) (req + 1);
2420 x_ptr = (INT32 *) (drawable_ptr + 1);
2421 y_ptr = (INT32 *) (drawable_ptr + 2);
2422 w_ptr = (INT32 *) (drawable_ptr + 3);
2423 h_ptr = (INT32 *) (drawable_ptr + 4);
2424
2425 *drawable_ptr = drawable;
2426 *x_ptr = x;
2427 *y_ptr = y;
2428 *w_ptr = width;
2429 *h_ptr = height;
2430
2431 UnlockDisplay(dpy);
2432 SyncHandle();
2433 }
2434
2435 /*@{*/
2436 static void
2437 __glXBindTexImageEXT(Display * dpy,
2438 GLXDrawable drawable, int buffer, const int *attrib_list)
2439 {
2440 struct glx_context *gc = __glXGetCurrentContext();
2441
2442 if (gc == &dummyContext || gc->vtable->bind_tex_image == NULL)
2443 return;
2444
2445 gc->vtable->bind_tex_image(dpy, drawable, buffer, attrib_list);
2446 }
2447
2448 static void
2449 __glXReleaseTexImageEXT(Display * dpy, GLXDrawable drawable, int buffer)
2450 {
2451 struct glx_context *gc = __glXGetCurrentContext();
2452
2453 if (gc == &dummyContext || gc->vtable->release_tex_image == NULL)
2454 return;
2455
2456 gc->vtable->release_tex_image(dpy, drawable, buffer);
2457 }
2458
2459 /*@}*/
2460
2461 #endif /* GLX_USE_APPLEGL */
2462
2463 /*
2464 ** glXGetProcAddress support
2465 */
2466
2467 struct name_address_pair
2468 {
2469 const char *Name;
2470 GLvoid *Address;
2471 };
2472
2473 #define GLX_FUNCTION(f) { # f, (GLvoid *) f }
2474 #define GLX_FUNCTION2(n,f) { # n, (GLvoid *) f }
2475
2476 static const struct name_address_pair GLX_functions[] = {
2477 /*** GLX_VERSION_1_0 ***/
2478 GLX_FUNCTION(glXChooseVisual),
2479 GLX_FUNCTION(glXCopyContext),
2480 GLX_FUNCTION(glXCreateContext),
2481 GLX_FUNCTION(glXCreateGLXPixmap),
2482 GLX_FUNCTION(glXDestroyContext),
2483 GLX_FUNCTION(glXDestroyGLXPixmap),
2484 GLX_FUNCTION(glXGetConfig),
2485 GLX_FUNCTION(glXGetCurrentContext),
2486 GLX_FUNCTION(glXGetCurrentDrawable),
2487 GLX_FUNCTION(glXIsDirect),
2488 GLX_FUNCTION(glXMakeCurrent),
2489 GLX_FUNCTION(glXQueryExtension),
2490 GLX_FUNCTION(glXQueryVersion),
2491 GLX_FUNCTION(glXSwapBuffers),
2492 GLX_FUNCTION(glXUseXFont),
2493 GLX_FUNCTION(glXWaitGL),
2494 GLX_FUNCTION(glXWaitX),
2495
2496 /*** GLX_VERSION_1_1 ***/
2497 GLX_FUNCTION(glXGetClientString),
2498 GLX_FUNCTION(glXQueryExtensionsString),
2499 GLX_FUNCTION(glXQueryServerString),
2500
2501 /*** GLX_VERSION_1_2 ***/
2502 GLX_FUNCTION(glXGetCurrentDisplay),
2503
2504 /*** GLX_VERSION_1_3 ***/
2505 GLX_FUNCTION(glXChooseFBConfig),
2506 GLX_FUNCTION(glXCreateNewContext),
2507 GLX_FUNCTION(glXCreatePbuffer),
2508 GLX_FUNCTION(glXCreatePixmap),
2509 GLX_FUNCTION(glXCreateWindow),
2510 GLX_FUNCTION(glXDestroyPbuffer),
2511 GLX_FUNCTION(glXDestroyPixmap),
2512 GLX_FUNCTION(glXDestroyWindow),
2513 GLX_FUNCTION(glXGetCurrentReadDrawable),
2514 GLX_FUNCTION(glXGetFBConfigAttrib),
2515 GLX_FUNCTION(glXGetFBConfigs),
2516 GLX_FUNCTION(glXGetSelectedEvent),
2517 GLX_FUNCTION(glXGetVisualFromFBConfig),
2518 GLX_FUNCTION(glXMakeContextCurrent),
2519 GLX_FUNCTION(glXQueryContext),
2520 GLX_FUNCTION(glXQueryDrawable),
2521 GLX_FUNCTION(glXSelectEvent),
2522
2523 #ifndef GLX_USE_APPLEGL
2524 /*** GLX_SGI_swap_control ***/
2525 GLX_FUNCTION2(glXSwapIntervalSGI, __glXSwapIntervalSGI),
2526
2527 /*** GLX_SGI_video_sync ***/
2528 GLX_FUNCTION2(glXGetVideoSyncSGI, __glXGetVideoSyncSGI),
2529 GLX_FUNCTION2(glXWaitVideoSyncSGI, __glXWaitVideoSyncSGI),
2530
2531 /*** GLX_SGI_make_current_read ***/
2532 GLX_FUNCTION2(glXMakeCurrentReadSGI, glXMakeContextCurrent),
2533 GLX_FUNCTION2(glXGetCurrentReadDrawableSGI, glXGetCurrentReadDrawable),
2534
2535 /*** GLX_EXT_import_context ***/
2536 GLX_FUNCTION(glXFreeContextEXT),
2537 GLX_FUNCTION(glXGetContextIDEXT),
2538 GLX_FUNCTION2(glXGetCurrentDisplayEXT, glXGetCurrentDisplay),
2539 GLX_FUNCTION(glXImportContextEXT),
2540 GLX_FUNCTION2(glXQueryContextInfoEXT, glXQueryContext),
2541 #endif
2542
2543 /*** GLX_SGIX_fbconfig ***/
2544 GLX_FUNCTION2(glXGetFBConfigAttribSGIX, glXGetFBConfigAttrib),
2545 GLX_FUNCTION2(glXChooseFBConfigSGIX, glXChooseFBConfig),
2546 GLX_FUNCTION(glXCreateGLXPixmapWithConfigSGIX),
2547 GLX_FUNCTION(glXCreateContextWithConfigSGIX),
2548 GLX_FUNCTION2(glXGetVisualFromFBConfigSGIX, glXGetVisualFromFBConfig),
2549 GLX_FUNCTION(glXGetFBConfigFromVisualSGIX),
2550
2551 #ifndef GLX_USE_APPLEGL
2552 /*** GLX_SGIX_pbuffer ***/
2553 GLX_FUNCTION(glXCreateGLXPbufferSGIX),
2554 GLX_FUNCTION(glXDestroyGLXPbufferSGIX),
2555 GLX_FUNCTION(glXQueryGLXPbufferSGIX),
2556 GLX_FUNCTION(glXSelectEventSGIX),
2557 GLX_FUNCTION(glXGetSelectedEventSGIX),
2558
2559 /*** GLX_SGIX_swap_group ***/
2560 GLX_FUNCTION2(glXJoinSwapGroupSGIX, __glXJoinSwapGroupSGIX),
2561
2562 /*** GLX_SGIX_swap_barrier ***/
2563 GLX_FUNCTION2(glXBindSwapBarrierSGIX, __glXBindSwapBarrierSGIX),
2564 GLX_FUNCTION2(glXQueryMaxSwapBarriersSGIX, __glXQueryMaxSwapBarriersSGIX),
2565
2566 /*** GLX_MESA_copy_sub_buffer ***/
2567 GLX_FUNCTION2(glXCopySubBufferMESA, __glXCopySubBufferMESA),
2568
2569 /*** GLX_MESA_pixmap_colormap ***/
2570 GLX_FUNCTION(glXCreateGLXPixmapMESA),
2571
2572 /*** GLX_MESA_release_buffers ***/
2573 GLX_FUNCTION2(glXReleaseBuffersMESA, __glXReleaseBuffersMESA),
2574
2575 /*** GLX_MESA_swap_control ***/
2576 GLX_FUNCTION2(glXSwapIntervalMESA, __glXSwapIntervalMESA),
2577 GLX_FUNCTION2(glXGetSwapIntervalMESA, __glXGetSwapIntervalMESA),
2578 #endif
2579
2580 /*** GLX_ARB_get_proc_address ***/
2581 GLX_FUNCTION(glXGetProcAddressARB),
2582
2583 /*** GLX 1.4 ***/
2584 GLX_FUNCTION2(glXGetProcAddress, glXGetProcAddressARB),
2585
2586 #ifndef GLX_USE_APPLEGL
2587 /*** GLX_OML_sync_control ***/
2588 GLX_FUNCTION2(glXWaitForSbcOML, __glXWaitForSbcOML),
2589 GLX_FUNCTION2(glXWaitForMscOML, __glXWaitForMscOML),
2590 GLX_FUNCTION2(glXSwapBuffersMscOML, __glXSwapBuffersMscOML),
2591 GLX_FUNCTION2(glXGetMscRateOML, __glXGetMscRateOML),
2592 GLX_FUNCTION2(glXGetSyncValuesOML, __glXGetSyncValuesOML),
2593
2594 /*** GLX_EXT_texture_from_pixmap ***/
2595 GLX_FUNCTION2(glXBindTexImageEXT, __glXBindTexImageEXT),
2596 GLX_FUNCTION2(glXReleaseTexImageEXT, __glXReleaseTexImageEXT),
2597 #endif
2598
2599 #if defined(GLX_DIRECT_RENDERING) && defined(GLX_USE_DRM)
2600 /*** DRI configuration ***/
2601 GLX_FUNCTION(glXGetScreenDriver),
2602 GLX_FUNCTION(glXGetDriverConfig),
2603 #endif
2604
2605 /*** GLX_ARB_create_context and GLX_ARB_create_context_profile ***/
2606 GLX_FUNCTION(glXCreateContextAttribsARB),
2607
2608 /*** GLX_MESA_query_renderer ***/
2609 GLX_FUNCTION(glXQueryRendererIntegerMESA),
2610 GLX_FUNCTION(glXQueryRendererStringMESA),
2611 GLX_FUNCTION(glXQueryCurrentRendererIntegerMESA),
2612 GLX_FUNCTION(glXQueryCurrentRendererStringMESA),
2613
2614 {NULL, NULL} /* end of list */
2615 };
2616
2617 static const GLvoid *
2618 get_glx_proc_address(const char *funcName)
2619 {
2620 GLuint i;
2621
2622 /* try static functions */
2623 for (i = 0; GLX_functions[i].Name; i++) {
2624 if (strcmp(GLX_functions[i].Name, funcName) == 0)
2625 return GLX_functions[i].Address;
2626 }
2627
2628 return NULL;
2629 }
2630
2631 /**
2632 * Get the address of a named GL function. This is the pre-GLX 1.4 name for
2633 * \c glXGetProcAddress.
2634 *
2635 * \param procName Name of a GL or GLX function.
2636 * \returns A pointer to the named function
2637 *
2638 * \sa glXGetProcAddress
2639 */
2640 _GLX_PUBLIC void (*glXGetProcAddressARB(const GLubyte * procName)) (void)
2641 {
2642 typedef void (*gl_function) (void);
2643 gl_function f;
2644
2645
2646 /* Search the table of GLX and internal functions first. If that
2647 * fails and the supplied name could be a valid core GL name, try
2648 * searching the core GL function table. This check is done to prevent
2649 * DRI based drivers from searching the core GL function table for
2650 * internal API functions.
2651 */
2652 f = (gl_function) get_glx_proc_address((const char *) procName);
2653 if ((f == NULL) && (procName[0] == 'g') && (procName[1] == 'l')
2654 && (procName[2] != 'X')) {
2655 #ifdef GLX_INDIRECT_RENDERING
2656 f = (gl_function) __indirect_get_proc_address((const char *) procName);
2657 #endif
2658 if (!f)
2659 f = (gl_function) _glapi_get_proc_address((const char *) procName);
2660 if (!f) {
2661 struct glx_context *gc = __glXGetCurrentContext();
2662
2663 if (gc != NULL && gc->vtable->get_proc_address != NULL)
2664 f = gc->vtable->get_proc_address((const char *) procName);
2665 }
2666 }
2667 return f;
2668 }
2669
2670 /**
2671 * Get the address of a named GL function. This is the GLX 1.4 name for
2672 * \c glXGetProcAddressARB.
2673 *
2674 * \param procName Name of a GL or GLX function.
2675 * \returns A pointer to the named function
2676 *
2677 * \sa glXGetProcAddressARB
2678 */
2679 _GLX_PUBLIC
2680 GLX_ALIAS(__GLXextFuncPtr, glXGetProcAddress,
2681 (const GLubyte * procName),
2682 (procName), glXGetProcAddressARB)
2683
2684 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
2685 /**
2686 * Get the unadjusted system time (UST). Currently, the UST is measured in
2687 * microseconds since Epoc. The actual resolution of the UST may vary from
2688 * system to system, and the units may vary from release to release.
2689 * Drivers should not call this function directly. They should instead use
2690 * \c glXGetProcAddress to obtain a pointer to the function.
2691 *
2692 * \param ust Location to store the 64-bit UST
2693 * \returns Zero on success or a negative errno value on failure.
2694 *
2695 * \sa glXGetProcAddress, PFNGLXGETUSTPROC
2696 *
2697 * \since Internal API version 20030317.
2698 */
2699 _X_HIDDEN int
2700 __glXGetUST(int64_t * ust)
2701 {
2702 struct timeval tv;
2703
2704 if (ust == NULL) {
2705 return -EFAULT;
2706 }
2707
2708 if (gettimeofday(&tv, NULL) == 0) {
2709 ust[0] = (tv.tv_sec * 1000000) + tv.tv_usec;
2710 return 0;
2711 }
2712 else {
2713 return -errno;
2714 }
2715 }
2716 #endif /* GLX_DIRECT_RENDERING */
2717
2718 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
2719
2720 PUBLIC int
2721 MesaGLInteropGLXQueryDeviceInfo(Display *dpy, GLXContext context,
2722 struct mesa_glinterop_device_info *out)
2723 {
2724 struct glx_context *gc = (struct glx_context*)context;
2725 int ret;
2726
2727 __glXLock();
2728
2729 if (!gc || gc->xid == None || !gc->isDirect) {
2730 __glXUnlock();
2731 return MESA_GLINTEROP_INVALID_CONTEXT;
2732 }
2733
2734 if (!gc->vtable->interop_query_device_info) {
2735 __glXUnlock();
2736 return MESA_GLINTEROP_UNSUPPORTED;
2737 }
2738
2739 ret = gc->vtable->interop_query_device_info(gc, out);
2740 __glXUnlock();
2741 return ret;
2742 }
2743
2744 PUBLIC int
2745 MesaGLInteropGLXExportObject(Display *dpy, GLXContext context,
2746 struct mesa_glinterop_export_in *in,
2747 struct mesa_glinterop_export_out *out)
2748 {
2749 struct glx_context *gc = (struct glx_context*)context;
2750 int ret;
2751
2752 __glXLock();
2753
2754 if (!gc || gc->xid == None || !gc->isDirect) {
2755 __glXUnlock();
2756 return MESA_GLINTEROP_INVALID_CONTEXT;
2757 }
2758
2759 if (!gc->vtable->interop_export_object) {
2760 __glXUnlock();
2761 return MESA_GLINTEROP_UNSUPPORTED;
2762 }
2763
2764 ret = gc->vtable->interop_export_object(gc, in, out);
2765 __glXUnlock();
2766 return ret;
2767 }
2768
2769 #endif /* defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) */