2 * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
3 * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.
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:
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.
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
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.
33 * Client-side GLX interface.
36 #include "glxclient.h"
38 #include "glxextensions.h"
39 #include "glcontextmodes.h"
41 #ifdef GLX_DIRECT_RENDERING
42 #ifdef GLX_USE_APPLEGL
43 #include "apple_glx_context.h"
44 #include "apple_glx.h"
45 #include "glx_error.h"
46 #define GC_IS_DIRECT(gc) ((gc)->isDirect)
49 #include <X11/extensions/xf86vmode.h>
51 #define GC_IS_DIRECT(gc) ((gc)->driContext != NULL)
54 #define GC_IS_DIRECT(gc) (0)
58 #include <X11/Xlib-xcb.h>
63 static const char __glXGLXClientVendorName[] = "Mesa Project and SGI";
64 static const char __glXGLXClientVersion[] = "1.4";
65 static const struct glx_context_vtable glx_indirect_context_vtable;
67 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
69 static Bool windowExistsFlag;
71 windowExistsErrorHandler(Display * dpy, XErrorEvent * xerr)
75 if (xerr->error_code == BadWindow) {
76 windowExistsFlag = GL_FALSE;
82 * Find drawables in the local hash that have been destroyed on the
85 * \param dpy Display to destroy drawables for
86 * \param screen Screen number to destroy drawables for
89 GarbageCollectDRIDrawables(Display * dpy, __GLXscreenConfigs * sc)
92 __GLXDRIdrawable *pdraw;
93 XWindowAttributes xwa;
94 int (*oldXErrorHandler) (Display *, XErrorEvent *);
96 /* Set no-op error handler so Xlib doesn't bail out if the windows
97 * has alreay been destroyed on the server. */
99 oldXErrorHandler = XSetErrorHandler(windowExistsErrorHandler);
101 if (__glxHashFirst(sc->drawHash, &draw, (void *) &pdraw) == 1) {
103 windowExistsFlag = GL_TRUE;
104 XGetWindowAttributes(dpy, draw, &xwa); /* dummy request */
105 if (!windowExistsFlag) {
106 /* Destroy the local drawable data, if the drawable no
107 longer exists in the Xserver */
108 (*pdraw->destroyDrawable) (pdraw);
109 __glxHashDelete(sc->drawHash, draw);
111 } while (__glxHashNext(sc->drawHash, &draw, (void *) &pdraw) == 1);
114 XSync(dpy, GL_FALSE);
115 XSetErrorHandler(oldXErrorHandler);
119 * Get the __DRIdrawable for the drawable associated with a GLXContext
121 * \param dpy The display associated with \c drawable.
122 * \param drawable GLXDrawable whose __DRIdrawable part is to be retrieved.
123 * \param scrn_num If non-NULL, the drawables screen is stored there
124 * \returns A pointer to the context's __DRIdrawable on success, or NULL if
125 * the drawable is not associated with a direct-rendering context.
127 _X_HIDDEN __GLXDRIdrawable *
128 GetGLXDRIDrawable(Display * dpy, GLXDrawable drawable, int *const scrn_num)
130 __GLXdisplayPrivate *priv = __glXInitialize(dpy);
131 __GLXDRIdrawable *pdraw;
132 const unsigned screen_count = ScreenCount(dpy);
134 __GLXscreenConfigs *psc;
139 for (i = 0; i < screen_count; i++) {
140 psc = priv->screenConfigs[i];
141 if (psc->drawHash == NULL)
144 if (__glxHashLookup(psc->drawHash, drawable, (void *) &pdraw) == 0) {
145 if (scrn_num != NULL)
158 * Get the GLX per-screen data structure associated with a GLX context.
160 * \param dpy Display for which the GLX per-screen information is to be
162 * \param scrn Screen on \c dpy for which the GLX per-screen information is
164 * \returns A pointer to the GLX per-screen data if \c dpy and \c scrn
165 * specify a valid GLX screen, or NULL otherwise.
167 * \todo Should this function validate that \c scrn is within the screen
168 * number range for \c dpy?
171 static __GLXscreenConfigs *
172 GetGLXScreenConfigs(Display * dpy, int scrn)
174 __GLXdisplayPrivate *const priv = __glXInitialize(dpy);
177 && priv->screenConfigs !=
178 NULL) ? priv->screenConfigs[scrn] : NULL;
183 GetGLXPrivScreenConfig(Display * dpy, int scrn, __GLXdisplayPrivate ** ppriv,
184 __GLXscreenConfigs ** ppsc)
186 /* Initialize the extension, if needed . This has the added value
187 * of initializing/allocating the display private
191 return GLX_NO_EXTENSION;
194 *ppriv = __glXInitialize(dpy);
195 if (*ppriv == NULL) {
196 return GLX_NO_EXTENSION;
199 /* Check screen number to see if its valid */
200 if ((scrn < 0) || (scrn >= ScreenCount(dpy))) {
201 return GLX_BAD_SCREEN;
204 /* Check to see if the GL is supported on this screen */
205 *ppsc = (*ppriv)->screenConfigs[scrn];
206 if ((*ppsc)->configs == NULL) {
207 /* No support for GL on this screen regardless of visual */
208 return GLX_BAD_VISUAL;
216 * Determine if a \c GLXFBConfig supplied by the application is valid.
218 * \param dpy Application supplied \c Display pointer.
219 * \param config Application supplied \c GLXFBConfig.
221 * \returns If the \c GLXFBConfig is valid, the a pointer to the matching
222 * \c __GLcontextModes structure is returned. Otherwise, \c NULL
225 static __GLcontextModes *
226 ValidateGLXFBConfig(Display * dpy, GLXFBConfig config)
228 __GLXdisplayPrivate *const priv = __glXInitialize(dpy);
229 const unsigned num_screens = ScreenCount(dpy);
231 const __GLcontextModes *modes;
235 for (i = 0; i < num_screens; i++) {
236 for (modes = priv->screenConfigs[i]->configs; modes != NULL;
237 modes = modes->next) {
238 if (modes == (__GLcontextModes *) config) {
239 return (__GLcontextModes *) config;
250 * \todo It should be possible to move the allocate of \c client_state_private
251 * later in the function for direct-rendering contexts. Direct-rendering
252 * contexts don't need to track client state, so they don't need that memory
255 * \todo Eliminate \c __glXInitVertexArrayState. Replace it with a new
256 * function called \c __glXAllocateClientState that allocates the memory and
257 * does all the initialization (including the pixel pack / unpack).
260 AllocateGLXContext(Display * dpy)
265 __GLXattribute *state;
270 opcode = __glXSetupForCommand(dpy);
275 /* Allocate our context record */
276 gc = (GLXContext) Xmalloc(sizeof(struct __GLXcontextRec));
281 memset(gc, 0, sizeof(struct __GLXcontextRec));
283 state = Xmalloc(sizeof(struct __GLXattributeRec));
289 gc->client_state_private = state;
290 memset(gc->client_state_private, 0, sizeof(struct __GLXattributeRec));
291 state->NoDrawArraysProtocol = (getenv("LIBGL_NO_DRAWARRAYS") != NULL);
294 ** Create a temporary buffer to hold GLX rendering commands. The size
295 ** of the buffer is selected so that the maximum number of GLX rendering
296 ** commands can fit in a single X packet and still have room in the X
297 ** packet for the GLXRenderReq header.
300 bufSize = (XMaxRequestSize(dpy) * 4) - sz_xGLXRenderReq;
301 gc->buf = (GLubyte *) Xmalloc(bufSize);
303 Xfree(gc->client_state_private);
307 gc->bufSize = bufSize;
309 /* Fill in the new context */
310 gc->renderMode = GL_RENDER;
312 state->storePack.alignment = 4;
313 state->storeUnpack.alignment = 4;
315 gc->attributes.stackPointer = &gc->attributes.stack[0];
318 ** PERFORMANCE NOTE: A mode dependent fill image can speed things up.
319 ** Other code uses the fastImageUnpack bit, but it is never set
322 gc->fastImageUnpack = GL_FALSE;
323 gc->fillImage = __glFillImage;
325 gc->bufEnd = gc->buf + bufSize;
326 gc->isDirect = GL_FALSE;
329 ** Set limit register so that there will be one command per packet
334 gc->limit = gc->buf + bufSize - __GLX_BUFFER_LIMIT_SIZE;
337 gc->majorOpcode = opcode;
340 ** Constrain the maximum drawing command size allowed to be
341 ** transfered using the X_GLXRender protocol request. First
342 ** constrain by a software limit, then constrain by the protocl
345 if (bufSize > __GLX_RENDER_CMD_SIZE_LIMIT) {
346 bufSize = __GLX_RENDER_CMD_SIZE_LIMIT;
348 if (bufSize > __GLX_MAX_RENDER_CMD_SIZE) {
349 bufSize = __GLX_MAX_RENDER_CMD_SIZE;
351 gc->maxSmallRenderCommandSize = bufSize;
353 #ifdef GLX_USE_APPLEGL
354 gc->driContext = NULL;
355 gc->do_destroy = False;
363 * Create a new context. Exactly one of \c vis and \c fbconfig should be
366 * \param use_glx_1_3 For FBConfigs, should GLX 1.3 protocol or
367 * SGIX_fbconfig protocol be used?
368 * \param renderType For FBConfigs, what is the rendering type?
372 CreateContext(Display * dpy, int generic_id,
373 const __GLcontextModes * const fbconfig,
374 GLXContext shareList,
376 unsigned code, int renderType, int screen)
379 __GLXscreenConfigs *const psc = GetGLXScreenConfigs(dpy, screen);
380 #if defined(GLX_DIRECT_RENDERING) && defined(GLX_USE_APPLEGL)
388 if (generic_id == None)
391 gc = AllocateGLXContext(dpy);
395 #ifndef GLX_USE_APPLEGL /* TODO: darwin indirect */
396 #ifdef GLX_DIRECT_RENDERING
397 if (allowDirect && psc->driScreen) {
398 gc->driContext = psc->driScreen->createContext(psc, fbconfig, gc,
399 shareList, renderType);
400 if (gc->driContext != NULL) {
404 gc->isDirect = GL_TRUE;
409 if (gc->driContext != NULL)
410 gc->vtable = psc->direct_context_vtable;
412 gc->vtable = &glx_indirect_context_vtable;
416 case X_GLXCreateContext: {
417 xGLXCreateContextReq *req;
419 /* Send the glXCreateContext request */
420 GetReq(GLXCreateContext, req);
421 req->reqType = gc->majorOpcode;
422 req->glxCode = X_GLXCreateContext;
423 req->context = gc->xid = XAllocID(dpy);
424 req->visual = generic_id;
425 req->screen = screen;
426 req->shareList = shareList ? shareList->xid : None;
427 req->isDirect = GC_IS_DIRECT(gc);
431 case X_GLXCreateNewContext: {
432 xGLXCreateNewContextReq *req;
434 /* Send the glXCreateNewContext request */
435 GetReq(GLXCreateNewContext, req);
436 req->reqType = gc->majorOpcode;
437 req->glxCode = X_GLXCreateNewContext;
438 req->context = gc->xid = XAllocID(dpy);
439 req->fbconfig = generic_id;
440 req->screen = screen;
441 req->renderType = renderType;
442 req->shareList = shareList ? shareList->xid : None;
443 req->isDirect = GC_IS_DIRECT(gc);
447 case X_GLXvop_CreateContextWithConfigSGIX: {
448 xGLXVendorPrivateWithReplyReq *vpreq;
449 xGLXCreateContextWithConfigSGIXReq *req;
451 /* Send the glXCreateNewContext request */
452 GetReqExtra(GLXVendorPrivateWithReply,
453 sz_xGLXCreateContextWithConfigSGIXReq -
454 sz_xGLXVendorPrivateWithReplyReq, vpreq);
455 req = (xGLXCreateContextWithConfigSGIXReq *) vpreq;
456 req->reqType = gc->majorOpcode;
457 req->glxCode = X_GLXVendorPrivateWithReply;
458 req->vendorCode = X_GLXvop_CreateContextWithConfigSGIX;
459 req->context = gc->xid = XAllocID(dpy);
460 req->fbconfig = generic_id;
461 req->screen = screen;
462 req->renderType = renderType;
463 req->shareList = shareList ? shareList->xid : None;
464 req->isDirect = GC_IS_DIRECT(gc);
469 /* What to do here? This case is the sign of an internal error. It
470 * should never be reachable.
479 gc->imported = GL_FALSE;
480 gc->renderType = renderType;
482 /* TODO: darwin: Integrate with above to do indirect */
483 #ifdef GLX_USE_APPLEGL
484 if(apple_glx_create_context(&gc->driContext, dpy, screen, fbconfig,
485 shareList ? shareList->driContext : NULL,
486 &errorcode, &x11error)) {
487 __glXSendError(dpy, errorcode, 0, X_GLXCreateContext, x11error);
488 __glXFreeContext(gc);
492 gc->currentContextTag = -1;
494 gc->isDirect = allowDirect;
501 glXCreateContext(Display * dpy, XVisualInfo * vis,
502 GLXContext shareList, Bool allowDirect)
504 const __GLcontextModes *mode = NULL;
507 #if defined(GLX_DIRECT_RENDERING) || defined(GLX_USE_APPLEGL)
508 __GLXscreenConfigs *const psc = GetGLXScreenConfigs(dpy, vis->screen);
510 mode = _gl_context_modes_find_visual(psc->visuals, vis->visualid);
514 error.errorCode = BadValue;
515 error.resourceID = vis->visualid;
516 error.sequenceNumber = dpy->request;
517 error.type = X_Error;
518 error.majorCode = __glXSetupForCommand(dpy);
519 error.minorCode = X_GLXCreateContext;
520 _XError(dpy, &error);
524 renderType = mode->rgbMode ? GLX_RGBA_TYPE : GLX_COLOR_INDEX_TYPE;
527 return CreateContext(dpy, vis->visualid, mode, shareList, allowDirect,
528 X_GLXCreateContext, renderType, vis->screen);
532 __glXFreeContext(__GLXcontext * gc)
535 XFree((char *) gc->vendor);
537 XFree((char *) gc->renderer);
539 XFree((char *) gc->version);
541 XFree((char *) gc->extensions);
542 __glFreeAttributeState(gc);
543 XFree((char *) gc->buf);
544 Xfree((char *) gc->client_state_private);
550 ** Destroy the named context
553 DestroyContext(Display * dpy, GLXContext gc)
555 #ifndef GLX_USE_APPLEGL /* TODO: darwin: indirect */
556 xGLXDestroyContextReq *req;
561 opcode = __glXSetupForCommand(dpy);
562 if (!opcode || !gc) {
568 imported = gc->imported;
571 if (gc->currentDpy) {
572 /* This context is bound to some thread. According to the man page,
573 * we should not actually delete the context until it's unbound.
574 * Note that we set gc->xid = None above. In MakeContextCurrent()
575 * we check for that and delete the context there.
581 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
582 /* Destroy the direct rendering context */
583 if (gc->driContext) {
584 (*gc->driContext->destroyContext) (gc->driContext, gc->psc, dpy);
585 gc->driContext = NULL;
586 GarbageCollectDRIDrawables(dpy, gc->psc);
590 __glXFreeVertexArrayState(gc);
593 #endif /* GLX_USE_APPLEGL */
595 if (gc->currentDpy) {
596 #ifdef GLX_USE_APPLEGL
598 * Set the Bool that indicates that we should destroy this GLX context
599 * when the context is no longer current.
601 gc->do_destroy = True;
603 /* Have to free later cuz it's in use now */
607 /* Destroy the handle if not current to anybody */
609 #ifdef GLX_USE_APPLEGL
611 apple_glx_destroy_context(&gc->driContext, dpy);
613 __glXFreeContext(gc);
615 #ifndef GLX_USE_APPLEGL
618 ** This dpy also created the server side part of the context.
619 ** Send the glXDestroyContext request.
622 GetReq(GLXDestroyContext, req);
623 req->reqType = opcode;
624 req->glxCode = X_GLXDestroyContext;
633 glXDestroyContext(Display * dpy, GLXContext gc)
635 DestroyContext(dpy, gc);
639 ** Return the major and minor version #s for the GLX extension
642 glXQueryVersion(Display * dpy, int *major, int *minor)
644 __GLXdisplayPrivate *priv;
646 /* Init the extension. This fetches the major and minor version. */
647 priv = __glXInitialize(dpy);
652 *major = priv->majorVersion;
654 *minor = priv->minorVersion;
659 ** Query the existance of the GLX extension
662 glXQueryExtension(Display * dpy, int *errorBase, int *eventBase)
664 int major_op, erb, evb;
667 rv = XQueryExtension(dpy, GLX_EXTENSION_NAME, &major_op, &evb, &erb);
678 ** Put a barrier in the token stream that forces the GL to finish its
679 ** work before X can proceed.
684 #ifndef GLX_USE_APPLEGL
687 GLXContext gc = __glXGetCurrentContext();
688 Display *dpy = gc->currentDpy;
693 /* Flush any pending commands out */
694 __glXFlushRenderBuffer(gc, gc->pc);
695 #ifdef GLX_USE_APPLEGL
698 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
699 if (gc->driContext) {
701 __GLXDRIdrawable *pdraw =
702 GetGLXDRIDrawable(dpy, gc->currentDrawable, &screen);
705 __GLXscreenConfigs *const psc = GetGLXScreenConfigs(dpy, screen);
707 if (psc->driScreen->waitGL != NULL)
708 (*psc->driScreen->waitGL) (pdraw);
714 /* Send the glXWaitGL request */
716 GetReq(GLXWaitGL, req);
717 req->reqType = gc->majorOpcode;
718 req->glxCode = X_GLXWaitGL;
719 req->contextTag = gc->currentContextTag;
722 #endif /* GLX_USE_APPLEGL */
726 ** Put a barrier in the token stream that forces X to finish its
727 ** work before GL can proceed.
732 #ifndef GLX_USE_APPLEGL
735 GLXContext gc = __glXGetCurrentContext();
736 Display *dpy = gc->currentDpy;
741 /* Flush any pending commands out */
742 __glXFlushRenderBuffer(gc, gc->pc);
744 #ifdef GLX_USE_APPLEGL
745 apple_glx_waitx(dpy, gc->driContext);
747 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
748 if (gc->driContext) {
750 __GLXDRIdrawable *pdraw =
751 GetGLXDRIDrawable(dpy, gc->currentDrawable, &screen);
754 __GLXscreenConfigs *const psc = GetGLXScreenConfigs(dpy, screen);
755 if (psc->driScreen->waitX != NULL)
756 (*psc->driScreen->waitX) (pdraw);
765 ** Send the glXWaitX request.
768 GetReq(GLXWaitX, req);
769 req->reqType = gc->majorOpcode;
770 req->glxCode = X_GLXWaitX;
771 req->contextTag = gc->currentContextTag;
774 #endif /* GLX_USE_APPLEGL */
778 glXUseXFont(Font font, int first, int count, int listBase)
780 #ifndef GLX_USE_APPLEGL
781 xGLXUseXFontReq *req;
783 GLXContext gc = __glXGetCurrentContext();
784 Display *dpy = gc->currentDpy;
789 /* Flush any pending commands out */
790 (void) __glXFlushRenderBuffer(gc, gc->pc);
791 #ifdef GLX_USE_APPLEGL
792 DRI_glXUseXFont(font, first, count, listBase);
794 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
795 if (gc->driContext) {
796 DRI_glXUseXFont(font, first, count, listBase);
801 /* Send the glXUseFont request */
803 GetReq(GLXUseXFont, req);
804 req->reqType = gc->majorOpcode;
805 req->glxCode = X_GLXUseXFont;
806 req->contextTag = gc->currentContextTag;
810 req->listBase = listBase;
813 #endif /* GLX_USE_APPLEGL */
816 /************************************************************************/
819 ** Copy the source context to the destination context using the
823 glXCopyContext(Display * dpy, GLXContext source,
824 GLXContext dest, unsigned long mask)
826 #ifdef GLX_USE_APPLEGL
827 GLXContext gc = __glXGetCurrentContext();
831 if(apple_glx_copy_context(gc->driContext, source->driContext, dest->driContext,
832 mask, &errorcode, &x11error)) {
833 __glXSendError(dpy, errorcode, 0, X_GLXCopyContext, x11error);
837 xGLXCopyContextReq *req;
838 GLXContext gc = __glXGetCurrentContext();
842 opcode = __glXSetupForCommand(dpy);
847 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
848 if (gc->driContext) {
849 /* NOT_DONE: This does not work yet */
854 ** If the source is the current context, send its tag so that the context
855 ** can be flushed before the copy.
857 if (source == gc && dpy == gc->currentDpy) {
858 tag = gc->currentContextTag;
864 /* Send the glXCopyContext request */
866 GetReq(GLXCopyContext, req);
867 req->reqType = opcode;
868 req->glxCode = X_GLXCopyContext;
869 req->source = source ? source->xid : None;
870 req->dest = dest ? dest->xid : None;
872 req->contextTag = tag;
875 #endif /* GLX_USE_APPLEGL */
880 * Determine if a context uses direct rendering.
882 * \param dpy Display where the context was created.
883 * \param contextID ID of the context to be tested.
885 * \returns \c GL_TRUE if the context is direct rendering or not.
888 __glXIsDirect(Display * dpy, GLXContextID contextID)
890 #if !defined(USE_XCB)
891 xGLXIsDirectReq *req;
892 xGLXIsDirectReply reply;
896 opcode = __glXSetupForCommand(dpy);
902 xcb_connection_t *c = XGetXCBConnection(dpy);
903 xcb_glx_is_direct_reply_t *reply = xcb_glx_is_direct_reply(c,
908 const Bool is_direct = reply->is_direct ? True : False;
913 /* Send the glXIsDirect request */
915 GetReq(GLXIsDirect, req);
916 req->reqType = opcode;
917 req->glxCode = X_GLXIsDirect;
918 req->context = contextID;
919 _XReply(dpy, (xReply *) & reply, 0, False);
923 return reply.isDirect;
929 * Shouldn't this function \b always return \c GL_FALSE when
930 * \c GLX_DIRECT_RENDERING is not defined? Do we really need to bother with
931 * the GLX protocol here at all?
934 glXIsDirect(Display * dpy, GLXContext gc)
939 else if (GC_IS_DIRECT(gc)) {
942 #ifdef GLX_USE_APPLEGL /* TODO: indirect on darwin */
945 return __glXIsDirect(dpy, gc->xid);
950 glXCreateGLXPixmap(Display * dpy, XVisualInfo * vis, Pixmap pixmap)
952 #ifdef GLX_USE_APPLEGL
953 int screen = vis->screen;
954 __GLXscreenConfigs *const psc = GetGLXScreenConfigs(dpy, screen);
955 const __GLcontextModes *modes;
957 modes = _gl_context_modes_find_visual(psc->visuals, vis->visualid);
959 if(apple_glx_pixmap_create(dpy, vis->screen, pixmap, modes))
964 xGLXCreateGLXPixmapReq *req;
968 opcode = __glXSetupForCommand(dpy);
973 /* Send the glXCreateGLXPixmap request */
975 GetReq(GLXCreateGLXPixmap, req);
976 req->reqType = opcode;
977 req->glxCode = X_GLXCreateGLXPixmap;
978 req->screen = vis->screen;
979 req->visual = vis->visualid;
980 req->pixmap = pixmap;
981 req->glxpixmap = xid = XAllocID(dpy);
985 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
987 /* FIXME: Maybe delay __DRIdrawable creation until the drawable
988 * is actually bound to a context... */
990 __GLXdisplayPrivate *const priv = __glXInitialize(dpy);
991 __GLXDRIdrawable *pdraw;
992 __GLXscreenConfigs *psc;
993 __GLcontextModes *modes;
995 psc = priv->screenConfigs[vis->screen];
996 if (psc->driScreen == NULL)
998 modes = _gl_context_modes_find_visual(psc->visuals, vis->visualid);
999 pdraw = psc->driScreen->createDrawable(psc, pixmap, req->glxpixmap, modes);
1000 if (pdraw == NULL) {
1001 fprintf(stderr, "failed to create pixmap\n");
1005 if (__glxHashInsert(psc->drawHash, req->glxpixmap, pdraw)) {
1006 (*pdraw->destroyDrawable) (pdraw);
1007 return None; /* FIXME: Check what we're supposed to do here... */
1017 ** Destroy the named pixmap
1020 glXDestroyGLXPixmap(Display * dpy, GLXPixmap glxpixmap)
1022 #ifdef GLX_USE_APPLEGL
1023 if(apple_glx_pixmap_destroy(dpy, glxpixmap))
1024 __glXSendError(dpy, GLXBadPixmap, glxpixmap, X_GLXDestroyPixmap, false);
1026 xGLXDestroyGLXPixmapReq *req;
1029 opcode = __glXSetupForCommand(dpy);
1034 /* Send the glXDestroyGLXPixmap request */
1036 GetReq(GLXDestroyGLXPixmap, req);
1037 req->reqType = opcode;
1038 req->glxCode = X_GLXDestroyGLXPixmap;
1039 req->glxpixmap = glxpixmap;
1043 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
1046 __GLXdisplayPrivate *const priv = __glXInitialize(dpy);
1047 __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, glxpixmap, &screen);
1048 __GLXscreenConfigs *psc = priv->screenConfigs[screen];
1050 if (pdraw != NULL) {
1051 (*pdraw->destroyDrawable) (pdraw);
1052 __glxHashDelete(psc->drawHash, glxpixmap);
1056 #endif /* GLX_USE_APPLEGL */
1060 glXSwapBuffers(Display * dpy, GLXDrawable drawable)
1062 #ifdef GLX_USE_APPLEGL
1063 GLXContext gc = glXGetCurrentContext();
1064 if(gc && apple_glx_is_current_drawable(dpy, gc->driContext, drawable)) {
1065 apple_glx_swap_buffers(gc->driContext);
1067 __glXSendError(dpy, GLXBadCurrentWindow, 0, X_GLXSwapBuffers, false);
1074 xcb_connection_t *c;
1076 xGLXSwapBuffersReq *req;
1079 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
1080 __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable, NULL);
1082 if (pdraw != NULL) {
1084 (*pdraw->psc->driScreen->swapBuffers)(pdraw, 0, 0, 0);
1089 opcode = __glXSetupForCommand(dpy);
1095 ** The calling thread may or may not have a current context. If it
1096 ** does, send the context tag so the server can do a flush.
1098 gc = __glXGetCurrentContext();
1099 if ((gc != NULL) && (dpy == gc->currentDpy) &&
1100 ((drawable == gc->currentDrawable)
1101 || (drawable == gc->currentReadable))) {
1102 tag = gc->currentContextTag;
1109 c = XGetXCBConnection(dpy);
1110 xcb_glx_swap_buffers(c, tag, drawable);
1113 /* Send the glXSwapBuffers request */
1115 GetReq(GLXSwapBuffers, req);
1116 req->reqType = opcode;
1117 req->glxCode = X_GLXSwapBuffers;
1118 req->drawable = drawable;
1119 req->contextTag = tag;
1123 #endif /* USE_XCB */
1124 #endif /* GLX_USE_APPLEGL */
1129 ** Return configuration information for the given display, screen and
1130 ** visual combination.
1133 glXGetConfig(Display * dpy, XVisualInfo * vis, int attribute,
1136 __GLXdisplayPrivate *priv;
1137 __GLXscreenConfigs *psc;
1138 __GLcontextModes *modes;
1141 status = GetGLXPrivScreenConfig(dpy, vis->screen, &priv, &psc);
1142 if (status == Success) {
1143 modes = _gl_context_modes_find_visual(psc->visuals, vis->visualid);
1145 /* Lookup attribute after first finding a match on the visual */
1146 if (modes != NULL) {
1147 return _gl_get_context_mode_data(modes, attribute, value_return);
1150 status = GLX_BAD_VISUAL;
1154 ** If we can't find the config for this visual, this visual is not
1155 ** supported by the OpenGL implementation on the server.
1157 if ((status == GLX_BAD_VISUAL) && (attribute == GLX_USE_GL)) {
1158 *value_return = GL_FALSE;
1165 /************************************************************************/
1168 init_fbconfig_for_chooser(__GLcontextModes * config,
1169 GLboolean fbconfig_style_tags)
1171 memset(config, 0, sizeof(__GLcontextModes));
1172 config->visualID = (XID) GLX_DONT_CARE;
1173 config->visualType = GLX_DONT_CARE;
1175 /* glXChooseFBConfig specifies different defaults for these two than
1178 if (fbconfig_style_tags) {
1179 config->rgbMode = GL_TRUE;
1180 config->doubleBufferMode = GLX_DONT_CARE;
1183 config->visualRating = GLX_DONT_CARE;
1184 config->transparentPixel = GLX_NONE;
1185 config->transparentRed = GLX_DONT_CARE;
1186 config->transparentGreen = GLX_DONT_CARE;
1187 config->transparentBlue = GLX_DONT_CARE;
1188 config->transparentAlpha = GLX_DONT_CARE;
1189 config->transparentIndex = GLX_DONT_CARE;
1191 config->drawableType = GLX_WINDOW_BIT;
1192 config->renderType =
1193 (config->rgbMode) ? GLX_RGBA_BIT : GLX_COLOR_INDEX_BIT;
1194 config->xRenderable = GLX_DONT_CARE;
1195 config->fbconfigID = (GLXFBConfigID) (GLX_DONT_CARE);
1197 config->swapMethod = GLX_DONT_CARE;
1200 #define MATCH_DONT_CARE( param ) \
1202 if ( ((int) a-> param != (int) GLX_DONT_CARE) \
1203 && (a-> param != b-> param) ) { \
1208 #define MATCH_MINIMUM( param ) \
1210 if ( ((int) a-> param != (int) GLX_DONT_CARE) \
1211 && (a-> param > b-> param) ) { \
1216 #define MATCH_EXACT( param ) \
1218 if ( a-> param != b-> param) { \
1223 /* Test that all bits from a are contained in b */
1224 #define MATCH_MASK(param) \
1226 if ((a->param & ~b->param) != 0) \
1231 * Determine if two GLXFBConfigs are compatible.
1233 * \param a Application specified config to test.
1234 * \param b Server specified config to test against \c a.
1237 fbconfigs_compatible(const __GLcontextModes * const a,
1238 const __GLcontextModes * const b)
1240 MATCH_DONT_CARE(doubleBufferMode);
1241 MATCH_DONT_CARE(visualType);
1242 MATCH_DONT_CARE(visualRating);
1243 MATCH_DONT_CARE(xRenderable);
1244 MATCH_DONT_CARE(fbconfigID);
1245 MATCH_DONT_CARE(swapMethod);
1247 MATCH_MINIMUM(rgbBits);
1248 MATCH_MINIMUM(numAuxBuffers);
1249 MATCH_MINIMUM(redBits);
1250 MATCH_MINIMUM(greenBits);
1251 MATCH_MINIMUM(blueBits);
1252 MATCH_MINIMUM(alphaBits);
1253 MATCH_MINIMUM(depthBits);
1254 MATCH_MINIMUM(stencilBits);
1255 MATCH_MINIMUM(accumRedBits);
1256 MATCH_MINIMUM(accumGreenBits);
1257 MATCH_MINIMUM(accumBlueBits);
1258 MATCH_MINIMUM(accumAlphaBits);
1259 MATCH_MINIMUM(sampleBuffers);
1260 MATCH_MINIMUM(maxPbufferWidth);
1261 MATCH_MINIMUM(maxPbufferHeight);
1262 MATCH_MINIMUM(maxPbufferPixels);
1263 MATCH_MINIMUM(samples);
1265 MATCH_DONT_CARE(stereoMode);
1268 MATCH_MASK(drawableType);
1269 MATCH_MASK(renderType);
1271 /* There is a bug in a few of the XFree86 DDX drivers. They contain
1272 * visuals with a "transparent type" of 0 when they really mean GLX_NONE.
1273 * Technically speaking, it is a bug in the DDX driver, but there is
1274 * enough of an installed base to work around the problem here. In any
1275 * case, 0 is not a valid value of the transparent type, so we'll treat 0
1276 * from the app as GLX_DONT_CARE. We'll consider GLX_NONE from the app and
1277 * 0 from the server to be a match to maintain backward compatibility with
1278 * the (broken) drivers.
1281 if (a->transparentPixel != (int) GLX_DONT_CARE && a->transparentPixel != 0) {
1282 if (a->transparentPixel == GLX_NONE) {
1283 if (b->transparentPixel != GLX_NONE && b->transparentPixel != 0)
1287 MATCH_EXACT(transparentPixel);
1290 switch (a->transparentPixel) {
1291 case GLX_TRANSPARENT_RGB:
1292 MATCH_DONT_CARE(transparentRed);
1293 MATCH_DONT_CARE(transparentGreen);
1294 MATCH_DONT_CARE(transparentBlue);
1295 MATCH_DONT_CARE(transparentAlpha);
1298 case GLX_TRANSPARENT_INDEX:
1299 MATCH_DONT_CARE(transparentIndex);
1311 /* There's some trickly language in the GLX spec about how this is supposed
1312 * to work. Basically, if a given component size is either not specified
1313 * or the requested size is zero, it is supposed to act like PERFER_SMALLER.
1314 * Well, that's really hard to do with the code as-is. This behavior is
1315 * closer to correct, but still not technically right.
1317 #define PREFER_LARGER_OR_ZERO(comp) \
1319 if ( ((*a)-> comp) != ((*b)-> comp) ) { \
1320 if ( ((*a)-> comp) == 0 ) { \
1323 else if ( ((*b)-> comp) == 0 ) { \
1327 return ((*b)-> comp) - ((*a)-> comp) ; \
1332 #define PREFER_LARGER(comp) \
1334 if ( ((*a)-> comp) != ((*b)-> comp) ) { \
1335 return ((*b)-> comp) - ((*a)-> comp) ; \
1339 #define PREFER_SMALLER(comp) \
1341 if ( ((*a)-> comp) != ((*b)-> comp) ) { \
1342 return ((*a)-> comp) - ((*b)-> comp) ; \
1347 * Compare two GLXFBConfigs. This function is intended to be used as the
1348 * compare function passed in to qsort.
1350 * \returns If \c a is a "better" config, according to the specification of
1351 * SGIX_fbconfig, a number less than zero is returned. If \c b is
1352 * better, then a number greater than zero is return. If both are
1353 * equal, zero is returned.
1354 * \sa qsort, glXChooseVisual, glXChooseFBConfig, glXChooseFBConfigSGIX
1357 fbconfig_compare(const __GLcontextModes * const *const a,
1358 const __GLcontextModes * const *const b)
1360 /* The order of these comparisons must NOT change. It is defined by
1361 * the GLX 1.3 spec and ARB_multisample.
1364 PREFER_SMALLER(visualSelectGroup);
1366 /* The sort order for the visualRating is GLX_NONE, GLX_SLOW, and
1367 * GLX_NON_CONFORMANT_CONFIG. It just so happens that this is the
1368 * numerical sort order of the enums (0x8000, 0x8001, and 0x800D).
1370 PREFER_SMALLER(visualRating);
1372 /* This isn't quite right. It is supposed to compare the sum of the
1373 * components the user specifically set minimums for.
1375 PREFER_LARGER_OR_ZERO(redBits);
1376 PREFER_LARGER_OR_ZERO(greenBits);
1377 PREFER_LARGER_OR_ZERO(blueBits);
1378 PREFER_LARGER_OR_ZERO(alphaBits);
1380 PREFER_SMALLER(rgbBits);
1382 if (((*a)->doubleBufferMode != (*b)->doubleBufferMode)) {
1383 /* Prefer single-buffer.
1385 return (!(*a)->doubleBufferMode) ? -1 : 1;
1388 PREFER_SMALLER(numAuxBuffers);
1390 PREFER_LARGER_OR_ZERO(depthBits);
1391 PREFER_SMALLER(stencilBits);
1393 /* This isn't quite right. It is supposed to compare the sum of the
1394 * components the user specifically set minimums for.
1396 PREFER_LARGER_OR_ZERO(accumRedBits);
1397 PREFER_LARGER_OR_ZERO(accumGreenBits);
1398 PREFER_LARGER_OR_ZERO(accumBlueBits);
1399 PREFER_LARGER_OR_ZERO(accumAlphaBits);
1401 PREFER_SMALLER(visualType);
1403 /* None of the multisample specs say where this comparison should happen,
1404 * so I put it near the end.
1406 PREFER_SMALLER(sampleBuffers);
1407 PREFER_SMALLER(samples);
1409 /* None of the pbuffer or fbconfig specs say that this comparison needs
1410 * to happen at all, but it seems like it should.
1412 PREFER_LARGER(maxPbufferWidth);
1413 PREFER_LARGER(maxPbufferHeight);
1414 PREFER_LARGER(maxPbufferPixels);
1421 * Selects and sorts a subset of the supplied configs based on the attributes.
1422 * This function forms to basis of \c glXChooseVisual, \c glXChooseFBConfig,
1423 * and \c glXChooseFBConfigSGIX.
1425 * \param configs Array of pointers to possible configs. The elements of
1426 * this array that do not meet the criteria will be set to
1427 * NULL. The remaining elements will be sorted according to
1428 * the various visual / FBConfig selection rules.
1429 * \param num_configs Number of elements in the \c configs array.
1430 * \param attribList Attributes used select from \c configs. This array is
1431 * terminated by a \c None tag. The array can either take
1432 * the form expected by \c glXChooseVisual (where boolean
1433 * tags do not have a value) or by \c glXChooseFBConfig
1434 * (where every tag has a value).
1435 * \param fbconfig_style_tags Selects whether \c attribList is in
1436 * \c glXChooseVisual style or
1437 * \c glXChooseFBConfig style.
1438 * \returns The number of valid elements left in \c configs.
1440 * \sa glXChooseVisual, glXChooseFBConfig, glXChooseFBConfigSGIX
1443 choose_visual(__GLcontextModes ** configs, int num_configs,
1444 const int *attribList, GLboolean fbconfig_style_tags)
1446 __GLcontextModes test_config;
1450 /* This is a fairly direct implementation of the selection method
1451 * described by GLX_SGIX_fbconfig. Start by culling out all the
1452 * configs that are not compatible with the selected parameter
1456 init_fbconfig_for_chooser(&test_config, fbconfig_style_tags);
1457 __glXInitializeVisualConfigFromTags(&test_config, 512,
1458 (const INT32 *) attribList,
1459 GL_TRUE, fbconfig_style_tags);
1462 for (i = 0; i < num_configs; i++) {
1463 if (fbconfigs_compatible(&test_config, configs[i])) {
1464 configs[base] = configs[i];
1473 if (base < num_configs) {
1474 (void) memset(&configs[base], 0, sizeof(void *) * (num_configs - base));
1477 /* After the incompatible configs are removed, the resulting
1478 * list is sorted according to the rules set out in the various
1482 qsort(configs, base, sizeof(__GLcontextModes *),
1483 (int (*)(const void *, const void *)) fbconfig_compare);
1491 ** Return the visual that best matches the template. Return None if no
1492 ** visual matches the template.
1494 PUBLIC XVisualInfo *
1495 glXChooseVisual(Display * dpy, int screen, int *attribList)
1497 XVisualInfo *visualList = NULL;
1498 __GLXdisplayPrivate *priv;
1499 __GLXscreenConfigs *psc;
1500 __GLcontextModes test_config;
1501 __GLcontextModes *modes;
1502 const __GLcontextModes *best_config = NULL;
1505 ** Get a list of all visuals, return if list is empty
1507 if (GetGLXPrivScreenConfig(dpy, screen, &priv, &psc) != Success) {
1513 ** Build a template from the defaults and the attribute list
1514 ** Free visual list and return if an unexpected token is encountered
1516 init_fbconfig_for_chooser(&test_config, GL_FALSE);
1517 __glXInitializeVisualConfigFromTags(&test_config, 512,
1518 (const INT32 *) attribList,
1522 ** Eliminate visuals that don't meet minimum requirements
1523 ** Compute a score for those that do
1524 ** Remember which visual, if any, got the highest score
1525 ** If no visual is acceptable, return None
1526 ** Otherwise, create an XVisualInfo list with just the selected X visual
1529 for (modes = psc->visuals; modes != NULL; modes = modes->next) {
1530 if (fbconfigs_compatible(&test_config, modes)
1531 && ((best_config == NULL)
1534 ((const __GLcontextModes * const *const) &modes,
1535 &best_config) < 0))) {
1536 XVisualInfo visualTemplate;
1537 XVisualInfo *newList;
1540 visualTemplate.screen = screen;
1541 visualTemplate.visualid = modes->visualID;
1542 newList = XGetVisualInfo(dpy, VisualScreenMask | VisualIDMask,
1543 &visualTemplate, &i);
1547 visualList = newList;
1548 best_config = modes;
1553 #ifdef GLX_USE_APPLEGL
1554 if(visualList && getenv("LIBGL_DUMP_VISUALID")) {
1555 printf("visualid 0x%lx\n", visualList[0].visualid);
1564 glXQueryExtensionsString(Display * dpy, int screen)
1566 __GLXscreenConfigs *psc;
1567 __GLXdisplayPrivate *priv;
1569 if (GetGLXPrivScreenConfig(dpy, screen, &priv, &psc) != Success) {
1573 if (!psc->effectiveGLXexts) {
1574 if (!psc->serverGLXexts) {
1575 psc->serverGLXexts =
1576 __glXQueryServerString(dpy, priv->majorOpcode, screen,
1580 __glXCalculateUsableExtensions(psc,
1581 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
1582 (psc->driScreen != NULL),
1586 priv->minorVersion);
1589 return psc->effectiveGLXexts;
1593 glXGetClientString(Display * dpy, int name)
1599 return (__glXGLXClientVendorName);
1601 return (__glXGLXClientVersion);
1602 case GLX_EXTENSIONS:
1603 return (__glXGetClientExtensions());
1610 glXQueryServerString(Display * dpy, int screen, int name)
1612 __GLXscreenConfigs *psc;
1613 __GLXdisplayPrivate *priv;
1617 if (GetGLXPrivScreenConfig(dpy, screen, &priv, &psc) != Success) {
1623 str = &priv->serverGLXvendor;
1626 str = &priv->serverGLXversion;
1628 case GLX_EXTENSIONS:
1629 str = &psc->serverGLXexts;
1636 *str = __glXQueryServerString(dpy, priv->majorOpcode, screen, name);
1643 __glXClientInfo(Display * dpy, int opcode)
1645 char *ext_str = __glXGetClientGLExtensionString();
1646 int size = strlen(ext_str) + 1;
1649 xcb_connection_t *c = XGetXCBConnection(dpy);
1650 xcb_glx_client_info(c,
1651 GLX_MAJOR_VERSION, GLX_MINOR_VERSION, size, ext_str);
1653 xGLXClientInfoReq *req;
1655 /* Send the glXClientInfo request */
1657 GetReq(GLXClientInfo, req);
1658 req->reqType = opcode;
1659 req->glxCode = X_GLXClientInfo;
1660 req->major = GLX_MAJOR_VERSION;
1661 req->minor = GLX_MINOR_VERSION;
1663 req->length += (size + 3) >> 2;
1664 req->numbytes = size;
1665 Data(dpy, ext_str, size);
1669 #endif /* USE_XCB */
1676 ** EXT_import_context
1680 glXGetCurrentDisplay(void)
1682 GLXContext gc = __glXGetCurrentContext();
1685 return gc->currentDpy;
1689 GLX_ALIAS(Display *, glXGetCurrentDisplayEXT, (void), (),
1690 glXGetCurrentDisplay)
1692 #ifndef GLX_USE_APPLEGL
1694 * Used internally by libGL to send \c xGLXQueryContextinfoExtReq requests
1697 * \param dpy Display where \c ctx was created.
1698 * \param ctx Context to query.
1699 * \returns \c Success on success. \c GLX_BAD_CONTEXT if \c ctx is invalid,
1700 * or zero if the request failed due to internal problems (i.e.,
1701 * unable to allocate temporary memory, etc.)
1704 * This function dynamically determines whether to use the EXT_import_context
1705 * version of the protocol or the GLX 1.3 version of the protocol.
1707 static int __glXQueryContextInfo(Display * dpy, GLXContext ctx)
1709 __GLXdisplayPrivate *priv = __glXInitialize(dpy);
1710 xGLXQueryContextReply reply;
1716 return GLX_BAD_CONTEXT;
1718 opcode = __glXSetupForCommand(dpy);
1723 /* Send the glXQueryContextInfoEXT request */
1726 if ((priv->majorVersion > 1) || (priv->minorVersion >= 3)) {
1727 xGLXQueryContextReq *req;
1729 GetReq(GLXQueryContext, req);
1731 req->reqType = opcode;
1732 req->glxCode = X_GLXQueryContext;
1733 req->context = (unsigned int) (ctx->xid);
1736 xGLXVendorPrivateReq *vpreq;
1737 xGLXQueryContextInfoEXTReq *req;
1739 GetReqExtra(GLXVendorPrivate,
1740 sz_xGLXQueryContextInfoEXTReq - sz_xGLXVendorPrivateReq,
1742 req = (xGLXQueryContextInfoEXTReq *) vpreq;
1743 req->reqType = opcode;
1744 req->glxCode = X_GLXVendorPrivateWithReply;
1745 req->vendorCode = X_GLXvop_QueryContextInfoEXT;
1746 req->context = (unsigned int) (ctx->xid);
1749 _XReply(dpy, (xReply *) & reply, 0, False);
1751 numValues = reply.n;
1754 else if (numValues > __GLX_MAX_CONTEXT_PROPS)
1757 int *propList, *pProp;
1760 nPropListBytes = numValues << 3;
1761 propList = (int *) Xmalloc(nPropListBytes);
1762 if (NULL == propList) {
1768 _XRead(dpy, (char *) propList, nPropListBytes);
1770 /* Look up screen first so we can look up visuals/fbconfigs later */
1772 for (i = 0; i < numValues; i++, pProp += 2)
1773 if (pProp[0] == GLX_SCREEN) {
1774 ctx->screen = pProp[1];
1775 ctx->psc = GetGLXScreenConfigs(dpy, ctx->screen);
1779 for (i = 0; i < numValues; i++) {
1781 case GLX_SHARE_CONTEXT_EXT:
1782 ctx->share_xid = *pProp++;
1784 case GLX_VISUAL_ID_EXT:
1786 _gl_context_modes_find_visual(ctx->psc->visuals, *pProp++);
1788 case GLX_FBCONFIG_ID:
1790 _gl_context_modes_find_fbconfig(ctx->psc->configs,
1793 case GLX_RENDER_TYPE:
1794 ctx->renderType = *pProp++;
1802 Xfree((char *) propList);
1814 glXQueryContext(Display * dpy, GLXContext ctx, int attribute, int *value)
1816 #ifndef GLX_USE_APPLEGL
1819 /* get the information from the server if we don't have it already */
1820 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
1821 if (!ctx->driContext && (ctx->mode == NULL)) {
1823 if (ctx->mode == NULL) {
1825 retVal = __glXQueryContextInfo(dpy, ctx);
1826 if (Success != retVal)
1831 switch (attribute) {
1832 #ifndef GLX_USE_APPLEGL
1833 case GLX_SHARE_CONTEXT_EXT:
1834 *value = (int) (ctx->share_xid);
1836 case GLX_VISUAL_ID_EXT:
1837 *value = ctx->mode ? ctx->mode->visualID : None;
1841 *value = (int) (ctx->screen);
1843 case GLX_FBCONFIG_ID:
1844 *value = ctx->mode ? ctx->mode->fbconfigID : None;
1846 case GLX_RENDER_TYPE:
1847 *value = (int) (ctx->renderType);
1850 return GLX_BAD_ATTRIBUTE;
1856 GLX_ALIAS(int, glXQueryContextInfoEXT,
1857 (Display * dpy, GLXContext ctx, int attribute, int *value),
1858 (dpy, ctx, attribute, value), glXQueryContext)
1860 PUBLIC GLXContextID glXGetContextIDEXT(const GLXContext ctx)
1866 glXImportContextEXT(Display * dpy, GLXContextID contextID)
1868 #ifdef GLX_USE_APPLEGL
1873 if (contextID == None) {
1876 if (__glXIsDirect(dpy, contextID)) {
1880 ctx = AllocateGLXContext(dpy);
1882 ctx->xid = contextID;
1883 ctx->imported = GL_TRUE;
1885 if (Success != __glXQueryContextInfo(dpy, ctx)) {
1886 __glXFreeContext(ctx);
1895 glXFreeContextEXT(Display * dpy, GLXContext ctx)
1897 DestroyContext(dpy, ctx);
1903 * GLX 1.3 functions - these are just stubs for now!
1906 PUBLIC GLXFBConfig *
1907 glXChooseFBConfig(Display * dpy, int screen,
1908 const int *attribList, int *nitems)
1910 __GLcontextModes **config_list;
1914 config_list = (__GLcontextModes **)
1915 glXGetFBConfigs(dpy, screen, &list_size);
1917 if ((config_list != NULL) && (list_size > 0) && (attribList != NULL)) {
1918 list_size = choose_visual(config_list, list_size, attribList, GL_TRUE);
1919 if (list_size == 0) {
1925 *nitems = list_size;
1926 return (GLXFBConfig *) config_list;
1931 glXCreateNewContext(Display * dpy, GLXFBConfig config,
1932 int renderType, GLXContext shareList, Bool allowDirect)
1934 const __GLcontextModes *const fbconfig =
1935 (const __GLcontextModes *const) config;
1937 return CreateContext(dpy, fbconfig->fbconfigID, fbconfig, shareList,
1938 allowDirect, X_GLXCreateNewContext, renderType,
1944 glXGetCurrentReadDrawable(void)
1946 GLXContext gc = __glXGetCurrentContext();
1947 return gc->currentReadable;
1951 PUBLIC GLXFBConfig *
1952 glXGetFBConfigs(Display * dpy, int screen, int *nelements)
1954 __GLXdisplayPrivate *priv = __glXInitialize(dpy);
1955 __GLcontextModes **config = NULL;
1959 if (priv && (priv->screenConfigs != NULL)
1960 && (screen >= 0) && (screen <= ScreenCount(dpy))
1961 && (priv->screenConfigs[screen]->configs != NULL)
1962 && (priv->screenConfigs[screen]->configs->fbconfigID
1963 != (int) GLX_DONT_CARE)) {
1964 unsigned num_configs = 0;
1965 __GLcontextModes *modes;
1968 for (modes = priv->screenConfigs[screen]->configs; modes != NULL;
1969 modes = modes->next) {
1970 if (modes->fbconfigID != (int) GLX_DONT_CARE) {
1975 config = (__GLcontextModes **) Xmalloc(sizeof(__GLcontextModes *)
1977 if (config != NULL) {
1978 *nelements = num_configs;
1980 for (modes = priv->screenConfigs[screen]->configs; modes != NULL;
1981 modes = modes->next) {
1982 if (modes->fbconfigID != (int) GLX_DONT_CARE) {
1989 return (GLXFBConfig *) config;
1994 glXGetFBConfigAttrib(Display * dpy, GLXFBConfig config,
1995 int attribute, int *value)
1997 __GLcontextModes *const modes = ValidateGLXFBConfig(dpy, config);
1999 return (modes != NULL)
2000 ? _gl_get_context_mode_data(modes, attribute, value)
2005 PUBLIC XVisualInfo *
2006 glXGetVisualFromFBConfig(Display * dpy, GLXFBConfig config)
2008 XVisualInfo visualTemplate;
2009 __GLcontextModes *fbconfig = (__GLcontextModes *) config;
2013 ** Get a list of all visuals, return if list is empty
2015 visualTemplate.visualid = fbconfig->visualID;
2016 return XGetVisualInfo(dpy, VisualIDMask, &visualTemplate, &count);
2019 #ifndef GLX_USE_APPLEGL
2021 ** GLX_SGI_swap_control
2024 __glXSwapIntervalSGI(int interval)
2026 xGLXVendorPrivateReq *req;
2027 GLXContext gc = __glXGetCurrentContext();
2028 __GLXscreenConfigs *psc;
2030 CARD32 *interval_ptr;
2034 return GLX_BAD_CONTEXT;
2037 if (interval <= 0) {
2038 return GLX_BAD_VALUE;
2041 #ifdef __DRI_SWAP_CONTROL
2042 if (gc->driContext) {
2043 __GLXscreenConfigs * const psc = GetGLXScreenConfigs( gc->currentDpy,
2045 __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(gc->currentDpy,
2046 gc->currentDrawable,
2048 if (psc->swapControl != NULL && pdraw != NULL) {
2049 psc->swapControl->setSwapInterval(pdraw->driDrawable, interval);
2052 else if (pdraw == NULL) {
2053 return GLX_BAD_CONTEXT;
2057 psc = GetGLXScreenConfigs( gc->currentDpy, gc->screen);
2059 #ifdef GLX_DIRECT_RENDERING
2060 if (gc->driContext && psc->driScreen && psc->driScreen->setSwapInterval) {
2061 __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(gc->currentDpy,
2062 gc->currentDrawable,
2064 psc->driScreen->setSwapInterval(pdraw, interval);
2069 dpy = gc->currentDpy;
2070 opcode = __glXSetupForCommand(dpy);
2075 /* Send the glXSwapIntervalSGI request */
2077 GetReqExtra(GLXVendorPrivate, sizeof(CARD32), req);
2078 req->reqType = opcode;
2079 req->glxCode = X_GLXVendorPrivate;
2080 req->vendorCode = X_GLXvop_SwapIntervalSGI;
2081 req->contextTag = gc->currentContextTag;
2083 interval_ptr = (CARD32 *) (req + 1);
2084 *interval_ptr = interval;
2095 ** GLX_MESA_swap_control
2098 __glXSwapIntervalMESA(unsigned int interval)
2100 GLXContext gc = __glXGetCurrentContext();
2102 #ifdef __DRI_SWAP_CONTROL
2103 if (gc != NULL && gc->driContext) {
2104 __GLXscreenConfigs *const psc = GetGLXScreenConfigs(gc->currentDpy,
2107 if ((psc != NULL) && (psc->driScreen != NULL)) {
2108 __GLXDRIdrawable *pdraw =
2109 GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable, NULL);
2110 if (psc->swapControl != NULL && pdraw != NULL) {
2111 psc->swapControl->setSwapInterval(pdraw->driDrawable, interval);
2118 #ifdef GLX_DIRECT_RENDERING
2119 if (gc != NULL && gc->driContext) {
2120 __GLXscreenConfigs *psc;
2122 psc = GetGLXScreenConfigs( gc->currentDpy, gc->screen);
2123 if (psc->driScreen && psc->driScreen->setSwapInterval) {
2124 __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(gc->currentDpy,
2125 gc->currentDrawable, NULL);
2126 psc->driScreen->setSwapInterval(pdraw, interval);
2132 return GLX_BAD_CONTEXT;
2137 __glXGetSwapIntervalMESA(void)
2139 #ifdef __DRI_SWAP_CONTROL
2140 GLXContext gc = __glXGetCurrentContext();
2142 if (gc != NULL && gc->driContext) {
2143 __GLXscreenConfigs *const psc = GetGLXScreenConfigs(gc->currentDpy,
2146 if ((psc != NULL) && (psc->driScreen != NULL)) {
2147 __GLXDRIdrawable *pdraw =
2148 GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable, NULL);
2149 if (psc->swapControl != NULL && pdraw != NULL) {
2150 return psc->swapControl->getSwapInterval(pdraw->driDrawable);
2156 #ifdef GLX_DIRECT_RENDERING
2157 if (gc != NULL && gc->driContext) {
2158 __GLXscreenConfigs *psc;
2160 psc = GetGLXScreenConfigs( gc->currentDpy, gc->screen);
2161 if (psc->driScreen && psc->driScreen->getSwapInterval) {
2162 __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(gc->currentDpy,
2163 gc->currentDrawable, NULL);
2164 return psc->driScreen->getSwapInterval(pdraw);
2174 ** GLX_MESA_swap_frame_usage
2178 __glXBeginFrameTrackingMESA(Display * dpy, GLXDrawable drawable)
2180 int status = GLX_BAD_CONTEXT;
2181 #ifdef __DRI_FRAME_TRACKING
2183 __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable, &screen);
2184 __GLXscreenConfigs *const psc = GetGLXScreenConfigs(dpy, screen);
2186 if (pdraw != NULL && psc->frameTracking != NULL)
2187 status = psc->frameTracking->frameTracking(pdraw->driDrawable, GL_TRUE);
2197 __glXEndFrameTrackingMESA(Display * dpy, GLXDrawable drawable)
2199 int status = GLX_BAD_CONTEXT;
2200 #ifdef __DRI_FRAME_TRACKING
2202 __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable, &screen);
2203 __GLXscreenConfigs *psc = GetGLXScreenConfigs(dpy, screen);
2205 if (pdraw != NULL && psc->frameTracking != NULL)
2206 status = psc->frameTracking->frameTracking(pdraw->driDrawable,
2217 __glXGetFrameUsageMESA(Display * dpy, GLXDrawable drawable, GLfloat * usage)
2219 int status = GLX_BAD_CONTEXT;
2220 #ifdef __DRI_FRAME_TRACKING
2222 __GLXDRIdrawable *const pdraw = GetGLXDRIDrawable(dpy, drawable, &screen);
2223 __GLXscreenConfigs *const psc = GetGLXScreenConfigs(dpy, screen);
2225 if (pdraw != NULL && psc->frameTracking != NULL) {
2226 int64_t sbc, missedFrames;
2227 float lastMissedUsage;
2229 status = psc->frameTracking->queryFrameTracking(pdraw->driDrawable,
2245 __glXQueryFrameTrackingMESA(Display * dpy, GLXDrawable drawable,
2246 int64_t * sbc, int64_t * missedFrames,
2247 GLfloat * lastMissedUsage)
2249 int status = GLX_BAD_CONTEXT;
2250 #ifdef __DRI_FRAME_TRACKING
2252 __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable, &screen);
2253 __GLXscreenConfigs *const psc = GetGLXScreenConfigs(dpy, screen);
2255 if (pdraw != NULL && psc->frameTracking != NULL) {
2258 status = psc->frameTracking->queryFrameTracking(pdraw->driDrawable,
2267 (void) missedFrames;
2268 (void) lastMissedUsage;
2275 ** GLX_SGI_video_sync
2278 __glXGetVideoSyncSGI(unsigned int *count)
2280 int64_t ust, msc, sbc;
2282 GLXContext gc = __glXGetCurrentContext();
2283 __GLXscreenConfigs *psc;
2284 #ifdef GLX_DIRECT_RENDERING
2285 __GLXDRIdrawable *pdraw;
2289 return GLX_BAD_CONTEXT;
2291 #ifdef GLX_DIRECT_RENDERING
2292 if (!gc->driContext)
2293 return GLX_BAD_CONTEXT;
2296 psc = GetGLXScreenConfigs(gc->currentDpy, gc->screen);
2297 #ifdef GLX_DIRECT_RENDERING
2298 pdraw = GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable, NULL);
2301 /* FIXME: Looking at the GLX_SGI_video_sync spec in the extension registry,
2302 * FIXME: there should be a GLX encoding for this call. I can find no
2303 * FIXME: documentation for the GLX encoding.
2305 #ifdef __DRI_MEDIA_STREAM_COUNTER
2306 if ( psc->msc && psc->driScreen ) {
2307 ret = (*psc->msc->getDrawableMSC)(psc->__driScreen,
2308 pdraw->driDrawable, &msc);
2309 *count = (unsigned) msc;
2311 return (ret == 0) ? 0 : GLX_BAD_CONTEXT;
2315 #ifdef GLX_DIRECT_RENDERING
2316 if (psc->driScreen && psc->driScreen->getDrawableMSC) {
2317 ret = psc->driScreen->getDrawableMSC(psc, pdraw, &ust, &msc, &sbc);
2318 *count = (unsigned) msc;
2319 return (ret == True) ? 0 : GLX_BAD_CONTEXT;
2323 return GLX_BAD_CONTEXT;
2327 __glXWaitVideoSyncSGI(int divisor, int remainder, unsigned int *count)
2329 GLXContext gc = __glXGetCurrentContext();
2330 __GLXscreenConfigs *psc;
2331 #ifdef GLX_DIRECT_RENDERING
2332 __GLXDRIdrawable *pdraw;
2334 int64_t ust, msc, sbc;
2337 if (divisor <= 0 || remainder < 0)
2338 return GLX_BAD_VALUE;
2341 return GLX_BAD_CONTEXT;
2343 #ifdef GLX_DIRECT_RENDERING
2344 if (!gc->driContext)
2345 return GLX_BAD_CONTEXT;
2348 psc = GetGLXScreenConfigs( gc->currentDpy, gc->screen);
2349 #ifdef GLX_DIRECT_RENDERING
2350 pdraw = GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable, NULL);
2353 #ifdef __DRI_MEDIA_STREAM_COUNTER
2354 if (psc->msc != NULL && psc->driScreen ) {
2355 ret = (*psc->msc->waitForMSC)(pdraw->driDrawable, 0,
2356 divisor, remainder, &msc, &sbc);
2357 *count = (unsigned) msc;
2358 return (ret == 0) ? 0 : GLX_BAD_CONTEXT;
2362 #ifdef GLX_DIRECT_RENDERING
2363 if (psc->driScreen && psc->driScreen->waitForMSC) {
2364 ret = psc->driScreen->waitForMSC(pdraw, 0, divisor, remainder, &ust, &msc,
2366 *count = (unsigned) msc;
2367 return (ret == True) ? 0 : GLX_BAD_CONTEXT;
2371 return GLX_BAD_CONTEXT;
2374 #endif /* GLX_USE_APPLEGL */
2377 ** GLX_SGIX_fbconfig
2378 ** Many of these functions are aliased to GLX 1.3 entry points in the
2379 ** GLX_functions table.
2383 GLX_ALIAS(int, glXGetFBConfigAttribSGIX,
2384 (Display * dpy, GLXFBConfigSGIX config, int attribute, int *value),
2385 (dpy, config, attribute, value), glXGetFBConfigAttrib)
2387 PUBLIC GLX_ALIAS(GLXFBConfigSGIX *, glXChooseFBConfigSGIX,
2388 (Display * dpy, int screen, int *attrib_list,
2389 int *nelements), (dpy, screen, attrib_list, nelements),
2392 PUBLIC GLX_ALIAS(XVisualInfo *, glXGetVisualFromFBConfigSGIX,
2393 (Display * dpy, GLXFBConfigSGIX config),
2394 (dpy, config), glXGetVisualFromFBConfig)
2397 glXCreateGLXPixmapWithConfigSGIX(Display * dpy,
2398 GLXFBConfigSGIX config,
2401 #ifndef GLX_USE_APPLEGL
2402 xGLXVendorPrivateWithReplyReq *vpreq;
2403 xGLXCreateGLXPixmapWithConfigSGIXReq *req;
2404 GLXPixmap xid = None;
2406 __GLXscreenConfigs *psc;
2408 const __GLcontextModes *const fbconfig = (__GLcontextModes *) config;
2411 if ((dpy == NULL) || (config == NULL)) {
2414 #ifdef GLX_USE_APPLEGL
2415 if(apple_glx_pixmap_create(dpy, fbconfig->screen, pixmap, fbconfig))
2420 psc = GetGLXScreenConfigs(dpy, fbconfig->screen);
2422 && __glXExtensionBitIsEnabled(psc, SGIX_fbconfig_bit)) {
2423 opcode = __glXSetupForCommand(dpy);
2428 /* Send the glXCreateGLXPixmapWithConfigSGIX request */
2430 GetReqExtra(GLXVendorPrivateWithReply,
2431 sz_xGLXCreateGLXPixmapWithConfigSGIXReq -
2432 sz_xGLXVendorPrivateWithReplyReq, vpreq);
2433 req = (xGLXCreateGLXPixmapWithConfigSGIXReq *) vpreq;
2434 req->reqType = opcode;
2435 req->glxCode = X_GLXVendorPrivateWithReply;
2436 req->vendorCode = X_GLXvop_CreateGLXPixmapWithConfigSGIX;
2437 req->screen = fbconfig->screen;
2438 req->fbconfig = fbconfig->fbconfigID;
2439 req->pixmap = pixmap;
2440 req->glxpixmap = xid = XAllocID(dpy);
2450 glXCreateContextWithConfigSGIX(Display * dpy,
2451 GLXFBConfigSGIX config, int renderType,
2452 GLXContext shareList, Bool allowDirect)
2454 GLXContext gc = NULL;
2455 const __GLcontextModes *const fbconfig = (__GLcontextModes *) config;
2456 __GLXscreenConfigs *psc;
2459 if ((dpy == NULL) || (config == NULL)) {
2463 psc = GetGLXScreenConfigs(dpy, fbconfig->screen);
2465 && __glXExtensionBitIsEnabled(psc, SGIX_fbconfig_bit)) {
2466 gc = CreateContext(dpy, fbconfig->fbconfigID, fbconfig, shareList,
2468 X_GLXvop_CreateContextWithConfigSGIX, renderType,
2476 PUBLIC GLXFBConfigSGIX
2477 glXGetFBConfigFromVisualSGIX(Display * dpy, XVisualInfo * vis)
2479 __GLXdisplayPrivate *priv;
2480 __GLXscreenConfigs *psc = NULL;
2482 if ((GetGLXPrivScreenConfig(dpy, vis->screen, &priv, &psc) != Success)
2483 && __glXExtensionBitIsEnabled(psc, SGIX_fbconfig_bit)
2484 && (psc->configs->fbconfigID != (int) GLX_DONT_CARE)) {
2485 return (GLXFBConfigSGIX) _gl_context_modes_find_visual(psc->configs,
2492 #ifndef GLX_USE_APPLEGL
2494 ** GLX_SGIX_swap_group
2497 __glXJoinSwapGroupSGIX(Display * dpy, GLXDrawable drawable,
2507 ** GLX_SGIX_swap_barrier
2510 __glXBindSwapBarrierSGIX(Display * dpy, GLXDrawable drawable, int barrier)
2518 __glXQueryMaxSwapBarriersSGIX(Display * dpy, int screen, int *max)
2528 ** GLX_OML_sync_control
2531 __glXGetSyncValuesOML(Display * dpy, GLXDrawable drawable,
2532 int64_t * ust, int64_t * msc, int64_t * sbc)
2534 __GLXdisplayPrivate * const priv = __glXInitialize(dpy);
2536 #ifdef GLX_DIRECT_RENDERING
2537 __GLXDRIdrawable *pdraw;
2539 __GLXscreenConfigs *psc;
2544 #ifdef GLX_DIRECT_RENDERING
2545 pdraw = GetGLXDRIDrawable(dpy, drawable, &i);
2547 psc = priv->screenConfigs[i];
2549 #if defined(__DRI_SWAP_BUFFER_COUNTER) && defined(__DRI_MEDIA_STREAM_COUNTER)
2550 if (pdraw && psc->sbc && psc->msc)
2551 return ( (pdraw && psc->sbc && psc->msc)
2552 && ((*psc->msc->getMSC)(psc->driScreen, msc) == 0)
2553 && ((*psc->sbc->getSBC)(pdraw->driDrawable, sbc) == 0)
2554 && (__glXGetUST(ust) == 0) );
2557 #ifdef GLX_DIRECT_RENDERING
2558 if (pdraw && psc && psc->driScreen && psc->driScreen->getDrawableMSC) {
2559 ret = psc->driScreen->getDrawableMSC(psc, pdraw, ust, msc, sbc);
2567 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
2569 __driGetMscRateOML(__DRIdrawable * draw,
2570 int32_t * numerator, int32_t * denominator, void *private)
2573 __GLXscreenConfigs *psc;
2574 XF86VidModeModeLine mode_line;
2577 __GLXDRIdrawable *glxDraw = private;
2582 if (XF86VidModeQueryVersion(psc->dpy, &i, &i) &&
2583 XF86VidModeGetModeLine(psc->dpy, psc->scr, &dot_clock, &mode_line)) {
2584 unsigned n = dot_clock * 1000;
2585 unsigned d = mode_line.vtotal * mode_line.htotal;
2587 # define V_INTERLACE 0x010
2588 # define V_DBLSCAN 0x020
2590 if (mode_line.flags & V_INTERLACE)
2592 else if (mode_line.flags & V_DBLSCAN)
2595 /* The OML_sync_control spec requires that if the refresh rate is a
2596 * whole number, that the returned numerator be equal to the refresh
2597 * rate and the denominator be 1.
2605 static const unsigned f[] = { 13, 11, 7, 5, 3, 2, 0 };
2607 /* This is a poor man's way to reduce a fraction. It's far from
2608 * perfect, but it will work well enough for this situation.
2611 for (i = 0; f[i] != 0; i++) {
2612 while (n % f[i] == 0 && d % f[i] == 0) {
2638 * Determine the refresh rate of the specified drawable and display.
2640 * \param dpy Display whose refresh rate is to be determined.
2641 * \param drawable Drawable whose refresh rate is to be determined.
2642 * \param numerator Numerator of the refresh rate.
2643 * \param demoninator Denominator of the refresh rate.
2644 * \return If the refresh rate for the specified display and drawable could
2645 * be calculated, True is returned. Otherwise False is returned.
2647 * \note This function is implemented entirely client-side. A lot of other
2648 * functionality is required to export GLX_OML_sync_control, so on
2649 * XFree86 this function can be called for direct-rendering contexts
2650 * when GLX_OML_sync_control appears in the client extension string.
2654 __glXGetMscRateOML(Display * dpy, GLXDrawable drawable,
2655 int32_t * numerator, int32_t * denominator)
2657 #if defined( GLX_DIRECT_RENDERING ) && defined( XF86VIDMODE )
2658 __GLXDRIdrawable *draw = GetGLXDRIDrawable(dpy, drawable, NULL);
2663 return __driGetMscRateOML(draw->driDrawable, numerator, denominator, draw);
2675 __glXSwapBuffersMscOML(Display * dpy, GLXDrawable drawable,
2676 int64_t target_msc, int64_t divisor, int64_t remainder)
2678 GLXContext gc = __glXGetCurrentContext();
2680 #ifdef GLX_DIRECT_RENDERING
2681 __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable, &screen);
2683 __GLXscreenConfigs *const psc = GetGLXScreenConfigs(dpy, screen);
2685 if (!gc) /* no GLX for this */
2688 #ifdef GLX_DIRECT_RENDERING
2689 if (!pdraw || !gc->driContext)
2693 /* The OML_sync_control spec says these should "generate a GLX_BAD_VALUE
2694 * error", but it also says "It [glXSwapBuffersMscOML] will return a value
2695 * of -1 if the function failed because of errors detected in the input
2698 if (divisor < 0 || remainder < 0 || target_msc < 0)
2700 if (divisor > 0 && remainder >= divisor)
2703 if (target_msc == 0 && divisor == 0 && remainder == 0)
2706 #ifdef __DRI_SWAP_BUFFER_COUNTER
2707 if (psc->counters != NULL)
2708 return (*psc->sbc->swapBuffersMSC)(pdraw->driDrawable, target_msc,
2709 divisor, remainder);
2712 #ifdef GLX_DIRECT_RENDERING
2713 if (psc->driScreen && psc->driScreen->swapBuffers)
2714 return (*psc->driScreen->swapBuffers)(pdraw, target_msc, divisor,
2723 __glXWaitForMscOML(Display * dpy, GLXDrawable drawable,
2724 int64_t target_msc, int64_t divisor,
2725 int64_t remainder, int64_t * ust,
2726 int64_t * msc, int64_t * sbc)
2729 #ifdef GLX_DIRECT_RENDERING
2730 __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable, &screen);
2732 __GLXscreenConfigs * const psc = GetGLXScreenConfigs( dpy, screen );
2736 /* The OML_sync_control spec says these should "generate a GLX_BAD_VALUE
2737 * error", but the return type in the spec is Bool.
2739 if (divisor < 0 || remainder < 0 || target_msc < 0)
2741 if (divisor > 0 && remainder >= divisor)
2744 #ifdef __DRI_MEDIA_STREAM_COUNTER
2745 if (pdraw != NULL && psc->msc != NULL) {
2746 ret = (*psc->msc->waitForMSC) (pdraw->driDrawable, target_msc,
2747 divisor, remainder, msc, sbc);
2749 /* __glXGetUST returns zero on success and non-zero on failure.
2750 * This function returns True on success and False on failure.
2752 return ((ret == 0) && (__glXGetUST(ust) == 0));
2756 #ifdef GLX_DIRECT_RENDERING
2757 if (pdraw && psc->driScreen && psc->driScreen->waitForMSC) {
2758 ret = psc->driScreen->waitForMSC(pdraw, target_msc, divisor, remainder,
2769 __glXWaitForSbcOML(Display * dpy, GLXDrawable drawable,
2770 int64_t target_sbc, int64_t * ust,
2771 int64_t * msc, int64_t * sbc)
2774 #ifdef GLX_DIRECT_RENDERING
2775 __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable, &screen);
2777 __GLXscreenConfigs *const psc = GetGLXScreenConfigs(dpy, screen);
2780 /* The OML_sync_control spec says this should "generate a GLX_BAD_VALUE
2781 * error", but the return type in the spec is Bool.
2785 #ifdef __DRI_SWAP_BUFFER_COUNTER
2786 if (pdraw != NULL && psc->sbc != NULL) {
2788 (*psc->sbc->waitForSBC) (pdraw->driDrawable, target_sbc, msc, sbc);
2790 /* __glXGetUST returns zero on success and non-zero on failure.
2791 * This function returns True on success and False on failure.
2793 return ((ret == 0) && (__glXGetUST(ust) == 0));
2797 #ifdef GLX_DIRECT_RENDERING
2798 if (pdraw && psc->driScreen && psc->driScreen->waitForSBC) {
2799 ret = psc->driScreen->waitForSBC(pdraw, target_sbc, ust, msc, sbc);
2811 * Mesa extension stubs. These will help reduce portability problems.
2816 * Release all buffers associated with the specified GLX drawable.
2819 * This function was intended for stand-alone Mesa. The issue there is that
2820 * the library doesn't get any notification when a window is closed. In
2821 * DRI there is a similar but slightly different issue. When GLX 1.3 is
2822 * supported, there are 3 different functions to destroy a drawable. It
2823 * should be possible to create GLX protocol (or have it determine which
2824 * protocol to use based on the type of the drawable) to have one function
2825 * do the work of 3. For the direct-rendering case, this function could
2826 * just call the driver's \c __DRIdrawableRec::destroyDrawable function.
2827 * This would reduce the frequency with which \c __driGarbageCollectDrawables
2828 * would need to be used. This really should be done as part of the new DRI
2831 * \sa http://oss.sgi.com/projects/ogl-sample/registry/MESA/release_buffers.txt
2832 * __driGarbageCollectDrawables
2833 * glXDestroyGLXPixmap
2834 * glXDestroyPbuffer glXDestroyPixmap glXDestroyWindow
2835 * glXDestroyGLXPbufferSGIX glXDestroyGLXVideoSourceSGIX
2838 __glXReleaseBuffersMESA(Display * dpy, GLXDrawable d)
2847 glXCreateGLXPixmapMESA(Display * dpy, XVisualInfo * visual,
2848 Pixmap pixmap, Colormap cmap)
2861 * GLX_MESA_copy_sub_buffer
2863 #define X_GLXvop_CopySubBufferMESA 5154 /* temporary */
2865 __glXCopySubBufferMESA(Display * dpy, GLXDrawable drawable,
2866 int x, int y, int width, int height)
2868 xGLXVendorPrivateReq *req;
2871 CARD32 *drawable_ptr;
2872 INT32 *x_ptr, *y_ptr, *w_ptr, *h_ptr;
2875 #ifdef __DRI_COPY_SUB_BUFFER
2877 __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable, &screen);
2878 if (pdraw != NULL) {
2879 __GLXscreenConfigs *const psc = GetGLXScreenConfigs(dpy, screen);
2880 if (psc->driScreen->copySubBuffer != NULL) {
2882 (*psc->driScreen->copySubBuffer) (pdraw, x, y, width, height);
2889 opcode = __glXSetupForCommand(dpy);
2894 ** The calling thread may or may not have a current context. If it
2895 ** does, send the context tag so the server can do a flush.
2897 gc = __glXGetCurrentContext();
2898 if ((gc != NULL) && (dpy == gc->currentDpy) &&
2899 ((drawable == gc->currentDrawable) ||
2900 (drawable == gc->currentReadable))) {
2901 tag = gc->currentContextTag;
2908 GetReqExtra(GLXVendorPrivate, sizeof(CARD32) + sizeof(INT32) * 4, req);
2909 req->reqType = opcode;
2910 req->glxCode = X_GLXVendorPrivate;
2911 req->vendorCode = X_GLXvop_CopySubBufferMESA;
2912 req->contextTag = tag;
2914 drawable_ptr = (CARD32 *) (req + 1);
2915 x_ptr = (INT32 *) (drawable_ptr + 1);
2916 y_ptr = (INT32 *) (drawable_ptr + 2);
2917 w_ptr = (INT32 *) (drawable_ptr + 3);
2918 h_ptr = (INT32 *) (drawable_ptr + 4);
2920 *drawable_ptr = drawable;
2932 * GLX_EXT_texture_from_pixmap
2935 glx_indirect_bind_tex_image(Display * dpy,
2936 GLXDrawable drawable,
2937 int buffer, const int *attrib_list)
2939 xGLXVendorPrivateReq *req;
2940 GLXContext gc = __glXGetCurrentContext();
2941 CARD32 *drawable_ptr;
2943 CARD32 *num_attrib_ptr;
2950 while (attrib_list[i * 2] != None)
2954 opcode = __glXSetupForCommand(dpy);
2959 GetReqExtra(GLXVendorPrivate, 12 + 8 * i, req);
2960 req->reqType = opcode;
2961 req->glxCode = X_GLXVendorPrivate;
2962 req->vendorCode = X_GLXvop_BindTexImageEXT;
2963 req->contextTag = gc->currentContextTag;
2965 drawable_ptr = (CARD32 *) (req + 1);
2966 buffer_ptr = (INT32 *) (drawable_ptr + 1);
2967 num_attrib_ptr = (CARD32 *) (buffer_ptr + 1);
2968 attrib_ptr = (CARD32 *) (num_attrib_ptr + 1);
2970 *drawable_ptr = drawable;
2971 *buffer_ptr = buffer;
2972 *num_attrib_ptr = (CARD32) i;
2976 while (attrib_list[i * 2] != None) {
2977 *attrib_ptr++ = (CARD32) attrib_list[i * 2 + 0];
2978 *attrib_ptr++ = (CARD32) attrib_list[i * 2 + 1];
2988 glx_indirect_release_tex_image(Display * dpy, GLXDrawable drawable, int buffer)
2990 xGLXVendorPrivateReq *req;
2991 GLXContext gc = __glXGetCurrentContext();
2992 CARD32 *drawable_ptr;
2996 opcode = __glXSetupForCommand(dpy);
3001 GetReqExtra(GLXVendorPrivate, sizeof(CARD32) + sizeof(INT32), req);
3002 req->reqType = opcode;
3003 req->glxCode = X_GLXVendorPrivate;
3004 req->vendorCode = X_GLXvop_ReleaseTexImageEXT;
3005 req->contextTag = gc->currentContextTag;
3007 drawable_ptr = (CARD32 *) (req + 1);
3008 buffer_ptr = (INT32 *) (drawable_ptr + 1);
3010 *drawable_ptr = drawable;
3011 *buffer_ptr = buffer;
3017 static const struct glx_context_vtable glx_indirect_context_vtable = {
3018 glx_indirect_bind_tex_image,
3019 glx_indirect_release_tex_image,
3024 __glXBindTexImageEXT(Display * dpy,
3025 GLXDrawable drawable, int buffer, const int *attrib_list)
3027 GLXContext gc = __glXGetCurrentContext();
3029 if (gc == NULL || gc->vtable->bind_tex_image == NULL)
3032 gc->vtable->bind_tex_image(dpy, drawable, buffer, attrib_list);
3036 __glXReleaseTexImageEXT(Display * dpy, GLXDrawable drawable, int buffer)
3038 GLXContext gc = __glXGetCurrentContext();
3040 if (gc == NULL || gc->vtable->release_tex_image == NULL)
3043 gc->vtable->release_tex_image(dpy, drawable, buffer);
3048 #endif /* GLX_USE_APPLEGL */
3051 * \c strdup is actually not a standard ANSI C or POSIX routine.
3052 * Irix will not define it if ANSI mode is in effect.
3057 __glXstrdup(const char *str)
3060 copy = (char *) Xmalloc(strlen(str) + 1);
3068 ** glXGetProcAddress support
3071 struct name_address_pair
3077 #define GLX_FUNCTION(f) { # f, (GLvoid *) f }
3078 #define GLX_FUNCTION2(n,f) { # n, (GLvoid *) f }
3080 static const struct name_address_pair GLX_functions[] = {
3081 /*** GLX_VERSION_1_0 ***/
3082 GLX_FUNCTION(glXChooseVisual),
3083 GLX_FUNCTION(glXCopyContext),
3084 GLX_FUNCTION(glXCreateContext),
3085 GLX_FUNCTION(glXCreateGLXPixmap),
3086 GLX_FUNCTION(glXDestroyContext),
3087 GLX_FUNCTION(glXDestroyGLXPixmap),
3088 GLX_FUNCTION(glXGetConfig),
3089 GLX_FUNCTION(glXGetCurrentContext),
3090 GLX_FUNCTION(glXGetCurrentDrawable),
3091 GLX_FUNCTION(glXIsDirect),
3092 GLX_FUNCTION(glXMakeCurrent),
3093 GLX_FUNCTION(glXQueryExtension),
3094 GLX_FUNCTION(glXQueryVersion),
3095 GLX_FUNCTION(glXSwapBuffers),
3096 GLX_FUNCTION(glXUseXFont),
3097 GLX_FUNCTION(glXWaitGL),
3098 GLX_FUNCTION(glXWaitX),
3100 /*** GLX_VERSION_1_1 ***/
3101 GLX_FUNCTION(glXGetClientString),
3102 GLX_FUNCTION(glXQueryExtensionsString),
3103 GLX_FUNCTION(glXQueryServerString),
3105 /*** GLX_VERSION_1_2 ***/
3106 GLX_FUNCTION(glXGetCurrentDisplay),
3108 /*** GLX_VERSION_1_3 ***/
3109 GLX_FUNCTION(glXChooseFBConfig),
3110 GLX_FUNCTION(glXCreateNewContext),
3111 GLX_FUNCTION(glXCreatePbuffer),
3112 GLX_FUNCTION(glXCreatePixmap),
3113 GLX_FUNCTION(glXCreateWindow),
3114 GLX_FUNCTION(glXDestroyPbuffer),
3115 GLX_FUNCTION(glXDestroyPixmap),
3116 GLX_FUNCTION(glXDestroyWindow),
3117 GLX_FUNCTION(glXGetCurrentReadDrawable),
3118 GLX_FUNCTION(glXGetFBConfigAttrib),
3119 GLX_FUNCTION(glXGetFBConfigs),
3120 GLX_FUNCTION(glXGetSelectedEvent),
3121 GLX_FUNCTION(glXGetVisualFromFBConfig),
3122 GLX_FUNCTION(glXMakeContextCurrent),
3123 GLX_FUNCTION(glXQueryContext),
3124 GLX_FUNCTION(glXQueryDrawable),
3125 GLX_FUNCTION(glXSelectEvent),
3127 #ifndef GLX_USE_APPLEGL
3128 /*** GLX_SGI_swap_control ***/
3129 GLX_FUNCTION2(glXSwapIntervalSGI, __glXSwapIntervalSGI),
3131 /*** GLX_SGI_video_sync ***/
3132 GLX_FUNCTION2(glXGetVideoSyncSGI, __glXGetVideoSyncSGI),
3133 GLX_FUNCTION2(glXWaitVideoSyncSGI, __glXWaitVideoSyncSGI),
3135 /*** GLX_SGI_make_current_read ***/
3136 GLX_FUNCTION2(glXMakeCurrentReadSGI, glXMakeContextCurrent),
3137 GLX_FUNCTION2(glXGetCurrentReadDrawableSGI, glXGetCurrentReadDrawable),
3139 /*** GLX_EXT_import_context ***/
3140 GLX_FUNCTION(glXFreeContextEXT),
3141 GLX_FUNCTION(glXGetContextIDEXT),
3142 GLX_FUNCTION2(glXGetCurrentDisplayEXT, glXGetCurrentDisplay),
3143 GLX_FUNCTION(glXImportContextEXT),
3144 GLX_FUNCTION2(glXQueryContextInfoEXT, glXQueryContext),
3147 /*** GLX_SGIX_fbconfig ***/
3148 GLX_FUNCTION2(glXGetFBConfigAttribSGIX, glXGetFBConfigAttrib),
3149 GLX_FUNCTION2(glXChooseFBConfigSGIX, glXChooseFBConfig),
3150 GLX_FUNCTION(glXCreateGLXPixmapWithConfigSGIX),
3151 GLX_FUNCTION(glXCreateContextWithConfigSGIX),
3152 GLX_FUNCTION2(glXGetVisualFromFBConfigSGIX, glXGetVisualFromFBConfig),
3153 GLX_FUNCTION(glXGetFBConfigFromVisualSGIX),
3155 #ifndef GLX_USE_APPLEGL
3156 /*** GLX_SGIX_pbuffer ***/
3157 GLX_FUNCTION(glXCreateGLXPbufferSGIX),
3158 GLX_FUNCTION(glXDestroyGLXPbufferSGIX),
3159 GLX_FUNCTION(glXQueryGLXPbufferSGIX),
3160 GLX_FUNCTION(glXSelectEventSGIX),
3161 GLX_FUNCTION(glXGetSelectedEventSGIX),
3163 /*** GLX_SGIX_swap_group ***/
3164 GLX_FUNCTION2(glXJoinSwapGroupSGIX, __glXJoinSwapGroupSGIX),
3166 /*** GLX_SGIX_swap_barrier ***/
3167 GLX_FUNCTION2(glXBindSwapBarrierSGIX, __glXBindSwapBarrierSGIX),
3168 GLX_FUNCTION2(glXQueryMaxSwapBarriersSGIX, __glXQueryMaxSwapBarriersSGIX),
3170 /*** GLX_MESA_copy_sub_buffer ***/
3171 GLX_FUNCTION2(glXCopySubBufferMESA, __glXCopySubBufferMESA),
3173 /*** GLX_MESA_pixmap_colormap ***/
3174 GLX_FUNCTION(glXCreateGLXPixmapMESA),
3176 /*** GLX_MESA_release_buffers ***/
3177 GLX_FUNCTION2(glXReleaseBuffersMESA, __glXReleaseBuffersMESA),
3179 /*** GLX_MESA_swap_control ***/
3180 GLX_FUNCTION2(glXSwapIntervalMESA, __glXSwapIntervalMESA),
3181 GLX_FUNCTION2(glXGetSwapIntervalMESA, __glXGetSwapIntervalMESA),
3183 /*** GLX_MESA_swap_frame_usage ***/
3184 GLX_FUNCTION2(glXBeginFrameTrackingMESA, __glXBeginFrameTrackingMESA),
3185 GLX_FUNCTION2(glXEndFrameTrackingMESA, __glXEndFrameTrackingMESA),
3186 GLX_FUNCTION2(glXGetFrameUsageMESA, __glXGetFrameUsageMESA),
3187 GLX_FUNCTION2(glXQueryFrameTrackingMESA, __glXQueryFrameTrackingMESA),
3190 /*** GLX_ARB_get_proc_address ***/
3191 GLX_FUNCTION(glXGetProcAddressARB),
3194 GLX_FUNCTION2(glXGetProcAddress, glXGetProcAddressARB),
3196 #ifndef GLX_USE_APPLEGL
3197 /*** GLX_OML_sync_control ***/
3198 GLX_FUNCTION2(glXWaitForSbcOML, __glXWaitForSbcOML),
3199 GLX_FUNCTION2(glXWaitForMscOML, __glXWaitForMscOML),
3200 GLX_FUNCTION2(glXSwapBuffersMscOML, __glXSwapBuffersMscOML),
3201 GLX_FUNCTION2(glXGetMscRateOML, __glXGetMscRateOML),
3202 GLX_FUNCTION2(glXGetSyncValuesOML, __glXGetSyncValuesOML),
3204 /*** GLX_EXT_texture_from_pixmap ***/
3205 GLX_FUNCTION2(glXBindTexImageEXT, __glXBindTexImageEXT),
3206 GLX_FUNCTION2(glXReleaseTexImageEXT, __glXReleaseTexImageEXT),
3209 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
3210 /*** DRI configuration ***/
3211 GLX_FUNCTION(glXGetScreenDriver),
3212 GLX_FUNCTION(glXGetDriverConfig),
3215 {NULL, NULL} /* end of list */
3218 #ifndef GLX_USE_APPLEGL
3219 static const GLvoid *
3220 get_glx_proc_address(const char *funcName)
3224 /* try static functions */
3225 for (i = 0; GLX_functions[i].Name; i++) {
3226 if (strcmp(GLX_functions[i].Name, funcName) == 0)
3227 return GLX_functions[i].Address;
3235 * Get the address of a named GL function. This is the pre-GLX 1.4 name for
3236 * \c glXGetProcAddress.
3238 * \param procName Name of a GL or GLX function.
3239 * \returns A pointer to the named function
3241 * \sa glXGetProcAddress
3243 PUBLIC void (*glXGetProcAddressARB(const GLubyte * procName)) (void)
3245 typedef void (*gl_function) (void);
3249 /* Search the table of GLX and internal functions first. If that
3250 * fails and the supplied name could be a valid core GL name, try
3251 * searching the core GL function table. This check is done to prevent
3252 * DRI based drivers from searching the core GL function table for
3253 * internal API functions.
3255 #ifdef GLX_USE_APPLEGL
3256 f = (gl_function) apple_glx_get_proc_address(procName);
3258 f = (gl_function) get_glx_proc_address((const char *) procName);
3259 if ((f == NULL) && (procName[0] == 'g') && (procName[1] == 'l')
3260 && (procName[2] != 'X')) {
3261 f = (gl_function) _glapi_get_proc_address((const char *) procName);
3268 * Get the address of a named GL function. This is the GLX 1.4 name for
3269 * \c glXGetProcAddressARB.
3271 * \param procName Name of a GL or GLX function.
3272 * \returns A pointer to the named function
3274 * \sa glXGetProcAddressARB
3276 PUBLIC void (*glXGetProcAddress(const GLubyte * procName)) (void)
3277 #if defined(__GNUC__) && !defined(GLX_ALIAS_UNSUPPORTED)
3278 __attribute__ ((alias("glXGetProcAddressARB")));
3281 return glXGetProcAddressARB(procName);
3283 #endif /* __GNUC__ */
3286 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
3288 * Get the unadjusted system time (UST). Currently, the UST is measured in
3289 * microseconds since Epoc. The actual resolution of the UST may vary from
3290 * system to system, and the units may vary from release to release.
3291 * Drivers should not call this function directly. They should instead use
3292 * \c glXGetProcAddress to obtain a pointer to the function.
3294 * \param ust Location to store the 64-bit UST
3295 * \returns Zero on success or a negative errno value on failure.
3297 * \sa glXGetProcAddress, PFNGLXGETUSTPROC
3299 * \since Internal API version 20030317.
3302 __glXGetUST(int64_t * ust)
3310 if (gettimeofday(&tv, NULL) == 0) {
3311 ust[0] = (tv.tv_sec * 1000000) + tv.tv_usec;
3318 #endif /* GLX_DIRECT_RENDERING */