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
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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
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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"
40 #ifdef GLX_DIRECT_RENDERING
41 #ifdef GLX_USE_APPLEGL
42 #include "apple_glx_context.h"
43 #include "apple_glx.h"
44 #include "glx_error.h"
47 #include <X11/extensions/xf86vmode.h>
54 #include <X11/Xlib-xcb.h>
59 static const char __glXGLXClientVendorName[] = "Mesa Project and SGI";
60 static const char __glXGLXClientVersion[] = "1.4";
61 static const struct glx_context_vtable indirect_context_vtable;
63 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
65 static Bool windowExistsFlag;
67 windowExistsErrorHandler(Display * dpy, XErrorEvent * xerr)
71 if (xerr->error_code == BadWindow) {
72 windowExistsFlag = GL_FALSE;
78 * Find drawables in the local hash that have been destroyed on the
81 * \param dpy Display to destroy drawables for
82 * \param screen Screen number to destroy drawables for
85 GarbageCollectDRIDrawables(struct glx_screen * sc)
88 __GLXDRIdrawable *pdraw;
89 struct glx_display *priv = sc->display;
90 XWindowAttributes xwa;
91 int (*oldXErrorHandler) (Display *, XErrorEvent *);
93 /* Set no-op error handler so Xlib doesn't bail out if the windows
94 * has alreay been destroyed on the server. */
95 XSync(priv->dpy, GL_FALSE);
96 oldXErrorHandler = XSetErrorHandler(windowExistsErrorHandler);
98 if (__glxHashFirst(priv->drawHash, &draw, (void *) &pdraw) == 1) {
100 windowExistsFlag = GL_TRUE;
101 XGetWindowAttributes(priv->dpy, draw, &xwa); /* dummy request */
102 if (!windowExistsFlag) {
103 /* Destroy the local drawable data, if the drawable no
104 longer exists in the Xserver */
105 (*pdraw->destroyDrawable) (pdraw);
106 __glxHashDelete(priv->drawHash, draw);
108 } while (__glxHashNext(priv->drawHash, &draw, (void *) &pdraw) == 1);
111 XSync(priv->dpy, GL_FALSE);
112 XSetErrorHandler(oldXErrorHandler);
116 * Get the __DRIdrawable for the drawable associated with a GLXContext
118 * \param dpy The display associated with \c drawable.
119 * \param drawable GLXDrawable whose __DRIdrawable part is to be retrieved.
120 * \param scrn_num If non-NULL, the drawables screen is stored there
121 * \returns A pointer to the context's __DRIdrawable on success, or NULL if
122 * the drawable is not associated with a direct-rendering context.
124 _X_HIDDEN __GLXDRIdrawable *
125 GetGLXDRIDrawable(Display * dpy, GLXDrawable drawable)
127 struct glx_display *priv = __glXInitialize(dpy);
128 __GLXDRIdrawable *pdraw;
133 if (__glxHashLookup(priv->drawHash, drawable, (void *) &pdraw) == 0)
143 * Get the GLX per-screen data structure associated with a GLX context.
145 * \param dpy Display for which the GLX per-screen information is to be
147 * \param scrn Screen on \c dpy for which the GLX per-screen information is
149 * \returns A pointer to the GLX per-screen data if \c dpy and \c scrn
150 * specify a valid GLX screen, or NULL otherwise.
152 * \todo Should this function validate that \c scrn is within the screen
153 * number range for \c dpy?
156 static struct glx_screen *
157 GetGLXScreenConfigs(Display * dpy, int scrn)
159 struct glx_display *const priv = __glXInitialize(dpy);
163 NULL) ? priv->screens[scrn] : NULL;
168 GetGLXPrivScreenConfig(Display * dpy, int scrn, struct glx_display ** ppriv,
169 struct glx_screen ** ppsc)
171 /* Initialize the extension, if needed . This has the added value
172 * of initializing/allocating the display private
176 return GLX_NO_EXTENSION;
179 *ppriv = __glXInitialize(dpy);
180 if (*ppriv == NULL) {
181 return GLX_NO_EXTENSION;
184 /* Check screen number to see if its valid */
185 if ((scrn < 0) || (scrn >= ScreenCount(dpy))) {
186 return GLX_BAD_SCREEN;
189 /* Check to see if the GL is supported on this screen */
190 *ppsc = (*ppriv)->screens[scrn];
191 if ((*ppsc)->configs == NULL) {
192 /* No support for GL on this screen regardless of visual */
193 return GLX_BAD_VISUAL;
201 * Determine if a \c GLXFBConfig supplied by the application is valid.
203 * \param dpy Application supplied \c Display pointer.
204 * \param config Application supplied \c GLXFBConfig.
206 * \returns If the \c GLXFBConfig is valid, the a pointer to the matching
207 * \c struct glx_config structure is returned. Otherwise, \c NULL
210 static struct glx_config *
211 ValidateGLXFBConfig(Display * dpy, GLXFBConfig fbconfig)
213 struct glx_display *const priv = __glXInitialize(dpy);
214 int num_screens = ScreenCount(dpy);
216 struct glx_config *config;
219 for (i = 0; i < num_screens; i++) {
220 for (config = priv->screens[i]->configs; config != NULL;
221 config = config->next) {
222 if (config == (struct glx_config *) fbconfig) {
232 #ifdef GLX_USE_APPLEGL
234 static const struct glx_context_vtable applegl_context_vtable;
236 static struct glx_context *
237 applegl_create_context(struct glx_screen *psc,
238 struct glx_config *mode,
239 struct glx_context *shareList, int renderType)
241 struct glx_context *gc;
245 /* TODO: Integrate this with apple_glx_create_context and make
246 * struct apple_glx_context inherit from struct glx_context. */
248 gc = Xmalloc(sizeof *gc);
252 memset(gc, 0, sizeof *gc);
253 if (!glx_context_init(&gc->base, &psc->base, mode)) {
258 gc->vtable = &applegl_context_vtable;
259 gc->driContext = NULL;
260 gc->do_destroy = False;
262 /* TODO: darwin: Integrate with above to do indirect */
263 if(apple_glx_create_context(&gc->driContext, dpy, screen, fbconfig,
264 shareList ? shareList->driContext : NULL,
265 &errorcode, &x11error)) {
266 __glXSendError(dpy, errorcode, 0, X_GLXCreateContext, x11error);
267 gc->vtable->destroy(gc);
271 gc->currentContextTag = -1;
273 gc->isDirect = allowDirect;
274 gc->xid = 1; /* Just something not None, so we know when to destroy
275 * it in MakeContextCurrent. */
283 * \todo It should be possible to move the allocate of \c client_state_private
284 * later in the function for direct-rendering contexts. Direct-rendering
285 * contexts don't need to track client state, so they don't need that memory
288 * \todo Eliminate \c __glXInitVertexArrayState. Replace it with a new
289 * function called \c __glXAllocateClientState that allocates the memory and
290 * does all the initialization (including the pixel pack / unpack).
292 static struct glx_context *
293 indirect_create_context(struct glx_screen *psc,
294 struct glx_config *mode,
295 struct glx_context *shareList, int renderType)
297 struct glx_context *gc;
300 __GLXattribute *state;
302 opcode = __glXSetupForCommand(psc->dpy);
307 /* Allocate our context record */
308 gc = Xmalloc(sizeof *gc);
313 memset(gc, 0, sizeof *gc);
315 glx_context_init(gc, psc, mode);
316 gc->isDirect = GL_FALSE;
317 gc->vtable = &indirect_context_vtable;
318 state = Xmalloc(sizeof(struct __GLXattributeRec));
324 gc->client_state_private = state;
325 memset(gc->client_state_private, 0, sizeof(struct __GLXattributeRec));
326 state->NoDrawArraysProtocol = (getenv("LIBGL_NO_DRAWARRAYS") != NULL);
329 ** Create a temporary buffer to hold GLX rendering commands. The size
330 ** of the buffer is selected so that the maximum number of GLX rendering
331 ** commands can fit in a single X packet and still have room in the X
332 ** packet for the GLXRenderReq header.
335 bufSize = (XMaxRequestSize(psc->dpy) * 4) - sz_xGLXRenderReq;
336 gc->buf = (GLubyte *) Xmalloc(bufSize);
338 Xfree(gc->client_state_private);
342 gc->bufSize = bufSize;
344 /* Fill in the new context */
345 gc->renderMode = GL_RENDER;
347 state->storePack.alignment = 4;
348 state->storeUnpack.alignment = 4;
350 gc->attributes.stackPointer = &gc->attributes.stack[0];
353 ** PERFORMANCE NOTE: A mode dependent fill image can speed things up.
354 ** Other code uses the fastImageUnpack bit, but it is never set
357 gc->fastImageUnpack = GL_FALSE;
358 gc->fillImage = __glFillImage;
360 gc->bufEnd = gc->buf + bufSize;
361 gc->isDirect = GL_FALSE;
364 ** Set limit register so that there will be one command per packet
369 gc->limit = gc->buf + bufSize - __GLX_BUFFER_LIMIT_SIZE;
371 gc->majorOpcode = opcode;
374 ** Constrain the maximum drawing command size allowed to be
375 ** transfered using the X_GLXRender protocol request. First
376 ** constrain by a software limit, then constrain by the protocl
379 if (bufSize > __GLX_RENDER_CMD_SIZE_LIMIT) {
380 bufSize = __GLX_RENDER_CMD_SIZE_LIMIT;
382 if (bufSize > __GLX_MAX_RENDER_CMD_SIZE) {
383 bufSize = __GLX_MAX_RENDER_CMD_SIZE;
385 gc->maxSmallRenderCommandSize = bufSize;
391 struct glx_screen_vtable indirect_screen_vtable = {
392 indirect_create_context
395 _X_HIDDEN struct glx_screen *
396 indirect_create_screen(int screen, struct glx_display * priv)
398 struct glx_screen *psc;
400 psc = Xmalloc(sizeof *psc);
404 memset(psc, 0, sizeof *psc);
405 glx_screen_init(psc, screen, priv);
406 psc->vtable = &indirect_screen_vtable;
413 glx_context_init(struct glx_context *gc,
414 struct glx_screen *psc, struct glx_config *config)
416 gc->majorOpcode = __glXSetupForCommand(psc->display->dpy);
417 if (!gc->majorOpcode)
420 gc->screen = psc->scr;
423 gc->isDirect = GL_TRUE;
424 gc->currentContextTag = -1;
431 * Create a new context. Exactly one of \c vis and \c fbconfig should be
434 * \param use_glx_1_3 For FBConfigs, should GLX 1.3 protocol or
435 * SGIX_fbconfig protocol be used?
436 * \param renderType For FBConfigs, what is the rendering type?
440 CreateContext(Display * dpy, int generic_id,
441 struct glx_config *config,
442 GLXContext shareList_user,
444 unsigned code, int renderType, int screen)
446 struct glx_context *gc = NULL;
447 struct glx_screen *const psc = GetGLXScreenConfigs(dpy, screen);
448 struct glx_context *shareList = (struct glx_context *) shareList_user;
452 if (generic_id == None)
456 if (allowDirect && psc->vtable->create_context)
457 gc = psc->vtable->create_context(psc, config, shareList, renderType);
459 gc = indirect_create_context(psc, config, shareList, renderType);
465 case X_GLXCreateContext: {
466 xGLXCreateContextReq *req;
468 /* Send the glXCreateContext request */
469 GetReq(GLXCreateContext, req);
470 req->reqType = gc->majorOpcode;
471 req->glxCode = X_GLXCreateContext;
472 req->context = gc->xid = XAllocID(dpy);
473 req->visual = generic_id;
474 req->screen = screen;
475 req->shareList = shareList ? shareList->xid : None;
476 req->isDirect = gc->isDirect;
480 case X_GLXCreateNewContext: {
481 xGLXCreateNewContextReq *req;
483 /* Send the glXCreateNewContext request */
484 GetReq(GLXCreateNewContext, req);
485 req->reqType = gc->majorOpcode;
486 req->glxCode = X_GLXCreateNewContext;
487 req->context = gc->xid = XAllocID(dpy);
488 req->fbconfig = generic_id;
489 req->screen = screen;
490 req->renderType = renderType;
491 req->shareList = shareList ? shareList->xid : None;
492 req->isDirect = gc->isDirect;
496 case X_GLXvop_CreateContextWithConfigSGIX: {
497 xGLXVendorPrivateWithReplyReq *vpreq;
498 xGLXCreateContextWithConfigSGIXReq *req;
500 /* Send the glXCreateNewContext request */
501 GetReqExtra(GLXVendorPrivateWithReply,
502 sz_xGLXCreateContextWithConfigSGIXReq -
503 sz_xGLXVendorPrivateWithReplyReq, vpreq);
504 req = (xGLXCreateContextWithConfigSGIXReq *) vpreq;
505 req->reqType = gc->majorOpcode;
506 req->glxCode = X_GLXVendorPrivateWithReply;
507 req->vendorCode = X_GLXvop_CreateContextWithConfigSGIX;
508 req->context = gc->xid = XAllocID(dpy);
509 req->fbconfig = generic_id;
510 req->screen = screen;
511 req->renderType = renderType;
512 req->shareList = shareList ? shareList->xid : None;
513 req->isDirect = gc->isDirect;
518 /* What to do here? This case is the sign of an internal error. It
519 * should never be reachable.
527 gc->imported = GL_FALSE;
528 gc->renderType = renderType;
530 return (GLXContext) gc;
534 glXCreateContext(Display * dpy, XVisualInfo * vis,
535 GLXContext shareList, Bool allowDirect)
537 struct glx_config *config = NULL;
540 #if defined(GLX_DIRECT_RENDERING) || defined(GLX_USE_APPLEGL)
541 struct glx_screen *const psc = GetGLXScreenConfigs(dpy, vis->screen);
543 config = glx_config_find_visual(psc->visuals, vis->visualid);
544 if (config == NULL) {
547 error.errorCode = BadValue;
548 error.resourceID = vis->visualid;
549 error.sequenceNumber = dpy->request;
550 error.type = X_Error;
551 error.majorCode = __glXSetupForCommand(dpy);
552 error.minorCode = X_GLXCreateContext;
553 _XError(dpy, &error);
557 renderType = config->rgbMode ? GLX_RGBA_TYPE : GLX_COLOR_INDEX_TYPE;
560 return CreateContext(dpy, vis->visualid, config, shareList, allowDirect,
561 X_GLXCreateContext, renderType, vis->screen);
565 glx_send_destroy_context(Display *dpy, XID xid)
567 CARD8 opcode = __glXSetupForCommand(dpy);
568 xGLXDestroyContextReq *req;
571 GetReq(GLXDestroyContext, req);
572 req->reqType = opcode;
573 req->glxCode = X_GLXDestroyContext;
580 indirect_destroy_context(struct glx_context *gc)
582 if (!gc->imported && gc->xid)
583 glx_send_destroy_context(gc->psc->dpy, gc->xid);
585 __glXFreeVertexArrayState(gc);
588 XFree((char *) gc->vendor);
590 XFree((char *) gc->renderer);
592 XFree((char *) gc->version);
594 XFree((char *) gc->extensions);
595 __glFreeAttributeState(gc);
596 XFree((char *) gc->buf);
597 Xfree((char *) gc->client_state_private);
602 ** Destroy the named context
605 DestroyContext(Display * dpy, GLXContext ctx)
607 struct glx_context *gc = (struct glx_context *) ctx;
613 if (gc->currentDpy) {
614 /* This context is bound to some thread. According to the man page,
615 * we should not actually delete the context until it's unbound.
616 * Note that we set gc->xid = None above. In MakeContextCurrent()
617 * we check for that and delete the context there.
620 glx_send_destroy_context(dpy, gc->xid);
627 if (gc->vtable->destroy)
628 gc->vtable->destroy(gc);
632 glXDestroyContext(Display * dpy, GLXContext gc)
634 DestroyContext(dpy, gc);
638 ** Return the major and minor version #s for the GLX extension
641 glXQueryVersion(Display * dpy, int *major, int *minor)
643 struct glx_display *priv;
645 /* Init the extension. This fetches the major and minor version. */
646 priv = __glXInitialize(dpy);
651 *major = priv->majorVersion;
653 *minor = priv->minorVersion;
658 ** Query the existance of the GLX extension
661 glXQueryExtension(Display * dpy, int *errorBase, int *eventBase)
663 int major_op, erb, evb;
666 rv = XQueryExtension(dpy, GLX_EXTENSION_NAME, &major_op, &evb, &erb);
677 indirect_wait_gl(struct glx_context *gc)
680 Display *dpy = gc->currentDpy;
682 /* Flush any pending commands out */
683 __glXFlushRenderBuffer(gc, gc->pc);
685 /* Send the glXWaitGL request */
687 GetReq(GLXWaitGL, req);
688 req->reqType = gc->majorOpcode;
689 req->glxCode = X_GLXWaitGL;
690 req->contextTag = gc->currentContextTag;
696 ** Put a barrier in the token stream that forces the GL to finish its
697 ** work before X can proceed.
702 struct glx_context *gc = __glXGetCurrentContext();
704 if (gc && gc->vtable->use_x_font)
705 gc->vtable->wait_gl(gc);
709 indirect_wait_x(struct glx_context *gc)
712 Display *dpy = gc->currentDpy;
714 /* Flush any pending commands out */
715 __glXFlushRenderBuffer(gc, gc->pc);
718 GetReq(GLXWaitX, req);
719 req->reqType = gc->majorOpcode;
720 req->glxCode = X_GLXWaitX;
721 req->contextTag = gc->currentContextTag;
727 ** Put a barrier in the token stream that forces X to finish its
728 ** work before GL can proceed.
733 struct glx_context *gc = __glXGetCurrentContext();
735 if (gc && gc->vtable->use_x_font)
736 gc->vtable->wait_x(gc);
740 indirect_use_x_font(struct glx_context *gc,
741 Font font, int first, int count, int listBase)
743 xGLXUseXFontReq *req;
744 Display *dpy = gc->currentDpy;
746 /* Flush any pending commands out */
747 __glXFlushRenderBuffer(gc, gc->pc);
749 /* Send the glXUseFont request */
751 GetReq(GLXUseXFont, req);
752 req->reqType = gc->majorOpcode;
753 req->glxCode = X_GLXUseXFont;
754 req->contextTag = gc->currentContextTag;
758 req->listBase = listBase;
763 #ifdef GLX_USE_APPLEGL
766 applegl_destroy_context(struct glx_context *gc)
768 apple_glx_destroy_context(&gc->driContext, gc->currentDpy);
772 applegl_wait_gl(struct glx_context *gc)
778 applegl_wait_x(struct glx_context *gc)
780 apple_glx_waitx(gc->dpy, gc->driContext);
783 static const struct glx_context_vtable applegl_context_vtable = {
784 applegl_destroy_context,
788 NULL, /* bind_tex_image, */
789 NULL, /* release_tex_image, */
795 glXUseXFont(Font font, int first, int count, int listBase)
797 struct glx_context *gc = __glXGetCurrentContext();
799 if (gc && gc->vtable->use_x_font)
800 gc->vtable->use_x_font(gc, font, first, count, listBase);
803 /************************************************************************/
806 ** Copy the source context to the destination context using the
810 glXCopyContext(Display * dpy, GLXContext source_user,
811 GLXContext dest_user, unsigned long mask)
813 struct glx_context *source = (struct glx_context *) source_user;
814 struct glx_context *dest = (struct glx_context *) dest_user;
815 #ifdef GLX_USE_APPLEGL
816 struct glx_context *gc = __glXGetCurrentContext();
820 if(apple_glx_copy_context(gc->driContext, source->driContext, dest->driContext,
821 mask, &errorcode, &x11error)) {
822 __glXSendError(dpy, errorcode, 0, X_GLXCopyContext, x11error);
826 xGLXCopyContextReq *req;
827 struct glx_context *gc = __glXGetCurrentContext();
831 opcode = __glXSetupForCommand(dpy);
836 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
838 /* NOT_DONE: This does not work yet */
843 ** If the source is the current context, send its tag so that the context
844 ** can be flushed before the copy.
846 if (source == gc && dpy == gc->currentDpy) {
847 tag = gc->currentContextTag;
853 /* Send the glXCopyContext request */
855 GetReq(GLXCopyContext, req);
856 req->reqType = opcode;
857 req->glxCode = X_GLXCopyContext;
858 req->source = source ? source->xid : None;
859 req->dest = dest ? dest->xid : None;
861 req->contextTag = tag;
864 #endif /* GLX_USE_APPLEGL */
869 * Determine if a context uses direct rendering.
871 * \param dpy Display where the context was created.
872 * \param contextID ID of the context to be tested.
874 * \returns \c GL_TRUE if the context is direct rendering or not.
877 __glXIsDirect(Display * dpy, GLXContextID contextID)
879 #if !defined(USE_XCB)
880 xGLXIsDirectReq *req;
881 xGLXIsDirectReply reply;
885 opcode = __glXSetupForCommand(dpy);
891 xcb_connection_t *c = XGetXCBConnection(dpy);
892 xcb_glx_is_direct_reply_t *reply = xcb_glx_is_direct_reply(c,
897 const Bool is_direct = reply->is_direct ? True : False;
902 /* Send the glXIsDirect request */
904 GetReq(GLXIsDirect, req);
905 req->reqType = opcode;
906 req->glxCode = X_GLXIsDirect;
907 req->context = contextID;
908 _XReply(dpy, (xReply *) & reply, 0, False);
912 return reply.isDirect;
918 * Shouldn't this function \b always return \c GL_FALSE when
919 * \c GLX_DIRECT_RENDERING is not defined? Do we really need to bother with
920 * the GLX protocol here at all?
923 glXIsDirect(Display * dpy, GLXContext gc_user)
925 struct glx_context *gc = (struct glx_context *) gc_user;
930 else if (gc->isDirect) {
933 #ifdef GLX_USE_APPLEGL /* TODO: indirect on darwin */
936 return __glXIsDirect(dpy, gc->xid);
941 glXCreateGLXPixmap(Display * dpy, XVisualInfo * vis, Pixmap pixmap)
943 #ifdef GLX_USE_APPLEGL
944 int screen = vis->screen;
945 struct glx_screen *const psc = GetGLXScreenConfigs(dpy, screen);
946 const struct glx_config *config;
948 config = _gl_context_modes_find_visual(psc->visuals, vis->visualid);
950 if(apple_glx_pixmap_create(dpy, vis->screen, pixmap, config))
955 xGLXCreateGLXPixmapReq *req;
959 opcode = __glXSetupForCommand(dpy);
964 /* Send the glXCreateGLXPixmap request */
966 GetReq(GLXCreateGLXPixmap, req);
967 req->reqType = opcode;
968 req->glxCode = X_GLXCreateGLXPixmap;
969 req->screen = vis->screen;
970 req->visual = vis->visualid;
971 req->pixmap = pixmap;
972 req->glxpixmap = xid = XAllocID(dpy);
976 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
978 /* FIXME: Maybe delay __DRIdrawable creation until the drawable
979 * is actually bound to a context... */
981 struct glx_display *const priv = __glXInitialize(dpy);
982 __GLXDRIdrawable *pdraw;
983 struct glx_screen *psc;
984 struct glx_config *config;
986 psc = priv->screens[vis->screen];
987 if (psc->driScreen == NULL)
989 config = glx_config_find_visual(psc->visuals, vis->visualid);
990 pdraw = psc->driScreen->createDrawable(psc, pixmap, req->glxpixmap, config);
992 fprintf(stderr, "failed to create pixmap\n");
996 if (__glxHashInsert(priv->drawHash, req->glxpixmap, pdraw)) {
997 (*pdraw->destroyDrawable) (pdraw);
998 return None; /* FIXME: Check what we're supposed to do here... */
1008 ** Destroy the named pixmap
1011 glXDestroyGLXPixmap(Display * dpy, GLXPixmap glxpixmap)
1013 #ifdef GLX_USE_APPLEGL
1014 if(apple_glx_pixmap_destroy(dpy, glxpixmap))
1015 __glXSendError(dpy, GLXBadPixmap, glxpixmap, X_GLXDestroyPixmap, false);
1017 xGLXDestroyGLXPixmapReq *req;
1020 opcode = __glXSetupForCommand(dpy);
1025 /* Send the glXDestroyGLXPixmap request */
1027 GetReq(GLXDestroyGLXPixmap, req);
1028 req->reqType = opcode;
1029 req->glxCode = X_GLXDestroyGLXPixmap;
1030 req->glxpixmap = glxpixmap;
1034 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
1036 struct glx_display *const priv = __glXInitialize(dpy);
1037 __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, glxpixmap);
1039 if (pdraw != NULL) {
1040 (*pdraw->destroyDrawable) (pdraw);
1041 __glxHashDelete(priv->drawHash, glxpixmap);
1045 #endif /* GLX_USE_APPLEGL */
1049 glXSwapBuffers(Display * dpy, GLXDrawable drawable)
1051 #ifdef GLX_USE_APPLEGL
1052 GLXContext gc = glXGetCurrentContext();
1053 if(gc && apple_glx_is_current_drawable(dpy, gc->driContext, drawable)) {
1054 apple_glx_swap_buffers(gc->driContext);
1056 __glXSendError(dpy, GLXBadCurrentWindow, 0, X_GLXSwapBuffers, false);
1059 struct glx_context *gc;
1063 xcb_connection_t *c;
1065 xGLXSwapBuffersReq *req;
1068 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
1069 __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable);
1071 if (pdraw != NULL) {
1073 (*pdraw->psc->driScreen->swapBuffers)(pdraw, 0, 0, 0);
1078 opcode = __glXSetupForCommand(dpy);
1084 ** The calling thread may or may not have a current context. If it
1085 ** does, send the context tag so the server can do a flush.
1087 gc = __glXGetCurrentContext();
1088 if ((gc != NULL) && (dpy == gc->currentDpy) &&
1089 ((drawable == gc->currentDrawable)
1090 || (drawable == gc->currentReadable))) {
1091 tag = gc->currentContextTag;
1098 c = XGetXCBConnection(dpy);
1099 xcb_glx_swap_buffers(c, tag, drawable);
1102 /* Send the glXSwapBuffers request */
1104 GetReq(GLXSwapBuffers, req);
1105 req->reqType = opcode;
1106 req->glxCode = X_GLXSwapBuffers;
1107 req->drawable = drawable;
1108 req->contextTag = tag;
1112 #endif /* USE_XCB */
1113 #endif /* GLX_USE_APPLEGL */
1118 ** Return configuration information for the given display, screen and
1119 ** visual combination.
1122 glXGetConfig(Display * dpy, XVisualInfo * vis, int attribute,
1125 struct glx_display *priv;
1126 struct glx_screen *psc;
1127 struct glx_config *config;
1130 status = GetGLXPrivScreenConfig(dpy, vis->screen, &priv, &psc);
1131 if (status == Success) {
1132 config = glx_config_find_visual(psc->visuals, vis->visualid);
1134 /* Lookup attribute after first finding a match on the visual */
1135 if (config != NULL) {
1136 return glx_config_get(config, attribute, value_return);
1139 status = GLX_BAD_VISUAL;
1143 ** If we can't find the config for this visual, this visual is not
1144 ** supported by the OpenGL implementation on the server.
1146 if ((status == GLX_BAD_VISUAL) && (attribute == GLX_USE_GL)) {
1147 *value_return = GL_FALSE;
1154 /************************************************************************/
1157 init_fbconfig_for_chooser(struct glx_config * config,
1158 GLboolean fbconfig_style_tags)
1160 memset(config, 0, sizeof(struct glx_config));
1161 config->visualID = (XID) GLX_DONT_CARE;
1162 config->visualType = GLX_DONT_CARE;
1164 /* glXChooseFBConfig specifies different defaults for these two than
1167 if (fbconfig_style_tags) {
1168 config->rgbMode = GL_TRUE;
1169 config->doubleBufferMode = GLX_DONT_CARE;
1172 config->visualRating = GLX_DONT_CARE;
1173 config->transparentPixel = GLX_NONE;
1174 config->transparentRed = GLX_DONT_CARE;
1175 config->transparentGreen = GLX_DONT_CARE;
1176 config->transparentBlue = GLX_DONT_CARE;
1177 config->transparentAlpha = GLX_DONT_CARE;
1178 config->transparentIndex = GLX_DONT_CARE;
1180 config->drawableType = GLX_WINDOW_BIT;
1181 config->renderType =
1182 (config->rgbMode) ? GLX_RGBA_BIT : GLX_COLOR_INDEX_BIT;
1183 config->xRenderable = GLX_DONT_CARE;
1184 config->fbconfigID = (GLXFBConfigID) (GLX_DONT_CARE);
1186 config->swapMethod = GLX_DONT_CARE;
1189 #define MATCH_DONT_CARE( param ) \
1191 if ( ((int) a-> param != (int) GLX_DONT_CARE) \
1192 && (a-> param != b-> param) ) { \
1197 #define MATCH_MINIMUM( param ) \
1199 if ( ((int) a-> param != (int) GLX_DONT_CARE) \
1200 && (a-> param > b-> param) ) { \
1205 #define MATCH_EXACT( param ) \
1207 if ( a-> param != b-> param) { \
1212 /* Test that all bits from a are contained in b */
1213 #define MATCH_MASK(param) \
1215 if ((a->param & ~b->param) != 0) \
1220 * Determine if two GLXFBConfigs are compatible.
1222 * \param a Application specified config to test.
1223 * \param b Server specified config to test against \c a.
1226 fbconfigs_compatible(const struct glx_config * const a,
1227 const struct glx_config * const b)
1229 MATCH_DONT_CARE(doubleBufferMode);
1230 MATCH_DONT_CARE(visualType);
1231 MATCH_DONT_CARE(visualRating);
1232 MATCH_DONT_CARE(xRenderable);
1233 MATCH_DONT_CARE(fbconfigID);
1234 MATCH_DONT_CARE(swapMethod);
1236 MATCH_MINIMUM(rgbBits);
1237 MATCH_MINIMUM(numAuxBuffers);
1238 MATCH_MINIMUM(redBits);
1239 MATCH_MINIMUM(greenBits);
1240 MATCH_MINIMUM(blueBits);
1241 MATCH_MINIMUM(alphaBits);
1242 MATCH_MINIMUM(depthBits);
1243 MATCH_MINIMUM(stencilBits);
1244 MATCH_MINIMUM(accumRedBits);
1245 MATCH_MINIMUM(accumGreenBits);
1246 MATCH_MINIMUM(accumBlueBits);
1247 MATCH_MINIMUM(accumAlphaBits);
1248 MATCH_MINIMUM(sampleBuffers);
1249 MATCH_MINIMUM(maxPbufferWidth);
1250 MATCH_MINIMUM(maxPbufferHeight);
1251 MATCH_MINIMUM(maxPbufferPixels);
1252 MATCH_MINIMUM(samples);
1254 MATCH_DONT_CARE(stereoMode);
1257 MATCH_MASK(drawableType);
1258 MATCH_MASK(renderType);
1260 /* There is a bug in a few of the XFree86 DDX drivers. They contain
1261 * visuals with a "transparent type" of 0 when they really mean GLX_NONE.
1262 * Technically speaking, it is a bug in the DDX driver, but there is
1263 * enough of an installed base to work around the problem here. In any
1264 * case, 0 is not a valid value of the transparent type, so we'll treat 0
1265 * from the app as GLX_DONT_CARE. We'll consider GLX_NONE from the app and
1266 * 0 from the server to be a match to maintain backward compatibility with
1267 * the (broken) drivers.
1270 if (a->transparentPixel != (int) GLX_DONT_CARE && a->transparentPixel != 0) {
1271 if (a->transparentPixel == GLX_NONE) {
1272 if (b->transparentPixel != GLX_NONE && b->transparentPixel != 0)
1276 MATCH_EXACT(transparentPixel);
1279 switch (a->transparentPixel) {
1280 case GLX_TRANSPARENT_RGB:
1281 MATCH_DONT_CARE(transparentRed);
1282 MATCH_DONT_CARE(transparentGreen);
1283 MATCH_DONT_CARE(transparentBlue);
1284 MATCH_DONT_CARE(transparentAlpha);
1287 case GLX_TRANSPARENT_INDEX:
1288 MATCH_DONT_CARE(transparentIndex);
1300 /* There's some trickly language in the GLX spec about how this is supposed
1301 * to work. Basically, if a given component size is either not specified
1302 * or the requested size is zero, it is supposed to act like PERFER_SMALLER.
1303 * Well, that's really hard to do with the code as-is. This behavior is
1304 * closer to correct, but still not technically right.
1306 #define PREFER_LARGER_OR_ZERO(comp) \
1308 if ( ((*a)-> comp) != ((*b)-> comp) ) { \
1309 if ( ((*a)-> comp) == 0 ) { \
1312 else if ( ((*b)-> comp) == 0 ) { \
1316 return ((*b)-> comp) - ((*a)-> comp) ; \
1321 #define PREFER_LARGER(comp) \
1323 if ( ((*a)-> comp) != ((*b)-> comp) ) { \
1324 return ((*b)-> comp) - ((*a)-> comp) ; \
1328 #define PREFER_SMALLER(comp) \
1330 if ( ((*a)-> comp) != ((*b)-> comp) ) { \
1331 return ((*a)-> comp) - ((*b)-> comp) ; \
1336 * Compare two GLXFBConfigs. This function is intended to be used as the
1337 * compare function passed in to qsort.
1339 * \returns If \c a is a "better" config, according to the specification of
1340 * SGIX_fbconfig, a number less than zero is returned. If \c b is
1341 * better, then a number greater than zero is return. If both are
1342 * equal, zero is returned.
1343 * \sa qsort, glXChooseVisual, glXChooseFBConfig, glXChooseFBConfigSGIX
1346 fbconfig_compare(struct glx_config **a, struct glx_config **b)
1348 /* The order of these comparisons must NOT change. It is defined by
1349 * the GLX 1.3 spec and ARB_multisample.
1352 PREFER_SMALLER(visualSelectGroup);
1354 /* The sort order for the visualRating is GLX_NONE, GLX_SLOW, and
1355 * GLX_NON_CONFORMANT_CONFIG. It just so happens that this is the
1356 * numerical sort order of the enums (0x8000, 0x8001, and 0x800D).
1358 PREFER_SMALLER(visualRating);
1360 /* This isn't quite right. It is supposed to compare the sum of the
1361 * components the user specifically set minimums for.
1363 PREFER_LARGER_OR_ZERO(redBits);
1364 PREFER_LARGER_OR_ZERO(greenBits);
1365 PREFER_LARGER_OR_ZERO(blueBits);
1366 PREFER_LARGER_OR_ZERO(alphaBits);
1368 PREFER_SMALLER(rgbBits);
1370 if (((*a)->doubleBufferMode != (*b)->doubleBufferMode)) {
1371 /* Prefer single-buffer.
1373 return (!(*a)->doubleBufferMode) ? -1 : 1;
1376 PREFER_SMALLER(numAuxBuffers);
1378 PREFER_LARGER_OR_ZERO(depthBits);
1379 PREFER_SMALLER(stencilBits);
1381 /* This isn't quite right. It is supposed to compare the sum of the
1382 * components the user specifically set minimums for.
1384 PREFER_LARGER_OR_ZERO(accumRedBits);
1385 PREFER_LARGER_OR_ZERO(accumGreenBits);
1386 PREFER_LARGER_OR_ZERO(accumBlueBits);
1387 PREFER_LARGER_OR_ZERO(accumAlphaBits);
1389 PREFER_SMALLER(visualType);
1391 /* None of the multisample specs say where this comparison should happen,
1392 * so I put it near the end.
1394 PREFER_SMALLER(sampleBuffers);
1395 PREFER_SMALLER(samples);
1397 /* None of the pbuffer or fbconfig specs say that this comparison needs
1398 * to happen at all, but it seems like it should.
1400 PREFER_LARGER(maxPbufferWidth);
1401 PREFER_LARGER(maxPbufferHeight);
1402 PREFER_LARGER(maxPbufferPixels);
1409 * Selects and sorts a subset of the supplied configs based on the attributes.
1410 * This function forms to basis of \c glXChooseVisual, \c glXChooseFBConfig,
1411 * and \c glXChooseFBConfigSGIX.
1413 * \param configs Array of pointers to possible configs. The elements of
1414 * this array that do not meet the criteria will be set to
1415 * NULL. The remaining elements will be sorted according to
1416 * the various visual / FBConfig selection rules.
1417 * \param num_configs Number of elements in the \c configs array.
1418 * \param attribList Attributes used select from \c configs. This array is
1419 * terminated by a \c None tag. The array can either take
1420 * the form expected by \c glXChooseVisual (where boolean
1421 * tags do not have a value) or by \c glXChooseFBConfig
1422 * (where every tag has a value).
1423 * \param fbconfig_style_tags Selects whether \c attribList is in
1424 * \c glXChooseVisual style or
1425 * \c glXChooseFBConfig style.
1426 * \returns The number of valid elements left in \c configs.
1428 * \sa glXChooseVisual, glXChooseFBConfig, glXChooseFBConfigSGIX
1431 choose_visual(struct glx_config ** configs, int num_configs,
1432 const int *attribList, GLboolean fbconfig_style_tags)
1434 struct glx_config test_config;
1438 /* This is a fairly direct implementation of the selection method
1439 * described by GLX_SGIX_fbconfig. Start by culling out all the
1440 * configs that are not compatible with the selected parameter
1444 init_fbconfig_for_chooser(&test_config, fbconfig_style_tags);
1445 __glXInitializeVisualConfigFromTags(&test_config, 512,
1446 (const INT32 *) attribList,
1447 GL_TRUE, fbconfig_style_tags);
1450 for (i = 0; i < num_configs; i++) {
1451 if (fbconfigs_compatible(&test_config, configs[i])) {
1452 configs[base] = configs[i];
1461 if (base < num_configs) {
1462 (void) memset(&configs[base], 0, sizeof(void *) * (num_configs - base));
1465 /* After the incompatible configs are removed, the resulting
1466 * list is sorted according to the rules set out in the various
1470 qsort(configs, base, sizeof(struct glx_config *),
1471 (int (*)(const void *, const void *)) fbconfig_compare);
1479 ** Return the visual that best matches the template. Return None if no
1480 ** visual matches the template.
1482 _X_EXPORT XVisualInfo *
1483 glXChooseVisual(Display * dpy, int screen, int *attribList)
1485 XVisualInfo *visualList = NULL;
1486 struct glx_display *priv;
1487 struct glx_screen *psc;
1488 struct glx_config test_config;
1489 struct glx_config *config;
1490 struct glx_config *best_config = NULL;
1493 ** Get a list of all visuals, return if list is empty
1495 if (GetGLXPrivScreenConfig(dpy, screen, &priv, &psc) != Success) {
1501 ** Build a template from the defaults and the attribute list
1502 ** Free visual list and return if an unexpected token is encountered
1504 init_fbconfig_for_chooser(&test_config, GL_FALSE);
1505 __glXInitializeVisualConfigFromTags(&test_config, 512,
1506 (const INT32 *) attribList,
1510 ** Eliminate visuals that don't meet minimum requirements
1511 ** Compute a score for those that do
1512 ** Remember which visual, if any, got the highest score
1513 ** If no visual is acceptable, return None
1514 ** Otherwise, create an XVisualInfo list with just the selected X visual
1517 for (config = psc->visuals; config != NULL; config = config->next) {
1518 if (fbconfigs_compatible(&test_config, config)
1519 && ((best_config == NULL) ||
1520 (fbconfig_compare (&config, &best_config) < 0))) {
1521 XVisualInfo visualTemplate;
1522 XVisualInfo *newList;
1525 visualTemplate.screen = screen;
1526 visualTemplate.visualid = config->visualID;
1527 newList = XGetVisualInfo(dpy, VisualScreenMask | VisualIDMask,
1528 &visualTemplate, &i);
1532 visualList = newList;
1533 best_config = config;
1538 #ifdef GLX_USE_APPLEGL
1539 if(visualList && getenv("LIBGL_DUMP_VISUALID")) {
1540 printf("visualid 0x%lx\n", visualList[0].visualid);
1548 _X_EXPORT const char *
1549 glXQueryExtensionsString(Display * dpy, int screen)
1551 struct glx_screen *psc;
1552 struct glx_display *priv;
1554 if (GetGLXPrivScreenConfig(dpy, screen, &priv, &psc) != Success) {
1558 if (!psc->effectiveGLXexts) {
1559 if (!psc->serverGLXexts) {
1560 psc->serverGLXexts =
1561 __glXQueryServerString(dpy, priv->majorOpcode, screen,
1565 __glXCalculateUsableExtensions(psc,
1566 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
1567 (psc->driScreen != NULL),
1571 priv->minorVersion);
1574 return psc->effectiveGLXexts;
1577 _X_EXPORT const char *
1578 glXGetClientString(Display * dpy, int name)
1584 return (__glXGLXClientVendorName);
1586 return (__glXGLXClientVersion);
1587 case GLX_EXTENSIONS:
1588 return (__glXGetClientExtensions());
1594 _X_EXPORT const char *
1595 glXQueryServerString(Display * dpy, int screen, int name)
1597 struct glx_screen *psc;
1598 struct glx_display *priv;
1602 if (GetGLXPrivScreenConfig(dpy, screen, &priv, &psc) != Success) {
1608 str = &priv->serverGLXvendor;
1611 str = &priv->serverGLXversion;
1613 case GLX_EXTENSIONS:
1614 str = &psc->serverGLXexts;
1621 *str = __glXQueryServerString(dpy, priv->majorOpcode, screen, name);
1628 __glXClientInfo(Display * dpy, int opcode)
1630 char *ext_str = __glXGetClientGLExtensionString();
1631 int size = strlen(ext_str) + 1;
1634 xcb_connection_t *c = XGetXCBConnection(dpy);
1635 xcb_glx_client_info(c,
1636 GLX_MAJOR_VERSION, GLX_MINOR_VERSION, size, ext_str);
1638 xGLXClientInfoReq *req;
1640 /* Send the glXClientInfo request */
1642 GetReq(GLXClientInfo, req);
1643 req->reqType = opcode;
1644 req->glxCode = X_GLXClientInfo;
1645 req->major = GLX_MAJOR_VERSION;
1646 req->minor = GLX_MINOR_VERSION;
1648 req->length += (size + 3) >> 2;
1649 req->numbytes = size;
1650 Data(dpy, ext_str, size);
1654 #endif /* USE_XCB */
1661 ** EXT_import_context
1665 glXGetCurrentDisplay(void)
1667 struct glx_context *gc = __glXGetCurrentContext();
1670 return gc->currentDpy;
1674 GLX_ALIAS(Display *, glXGetCurrentDisplayEXT, (void), (),
1675 glXGetCurrentDisplay)
1677 #ifndef GLX_USE_APPLEGL
1678 _X_EXPORT GLXContext
1679 glXImportContextEXT(Display *dpy, GLXContextID contextID)
1681 struct glx_display *priv = __glXInitialize(dpy);
1682 struct glx_screen *psc;
1683 xGLXQueryContextReply reply;
1685 struct glx_context *ctx;
1686 int propList[__GLX_MAX_CONTEXT_PROPS * 2], *pProp, nPropListBytes;
1689 struct glx_config *mode;
1691 if (contextID == None || __glXIsDirect(dpy, contextID))
1694 opcode = __glXSetupForCommand(dpy);
1698 /* Send the glXQueryContextInfoEXT request */
1701 if (priv->majorVersion > 1 || priv->minorVersion >= 3) {
1702 xGLXQueryContextReq *req;
1704 GetReq(GLXQueryContext, req);
1706 req->reqType = opcode;
1707 req->glxCode = X_GLXQueryContext;
1708 req->context = contextID;
1711 xGLXVendorPrivateReq *vpreq;
1712 xGLXQueryContextInfoEXTReq *req;
1714 GetReqExtra(GLXVendorPrivate,
1715 sz_xGLXQueryContextInfoEXTReq - sz_xGLXVendorPrivateReq,
1717 req = (xGLXQueryContextInfoEXTReq *) vpreq;
1718 req->reqType = opcode;
1719 req->glxCode = X_GLXVendorPrivateWithReply;
1720 req->vendorCode = X_GLXvop_QueryContextInfoEXT;
1721 req->context = contextID;
1724 _XReply(dpy, (xReply *) & reply, 0, False);
1726 if (reply.n <= __GLX_MAX_CONTEXT_PROPS)
1727 nPropListBytes = reply.n * 2 * sizeof propList[0];
1730 _XRead(dpy, (char *) propList, nPropListBytes);
1734 /* Look up screen first so we can look up visuals/fbconfigs later */
1736 for (i = 0, pProp = propList; i < reply.n; i++, pProp += 2)
1737 if (pProp[0] == GLX_SCREEN)
1738 psc = GetGLXScreenConfigs(dpy, pProp[1]);
1747 for (i = 0, pProp = propList; i < reply.n; i++, pProp += 2)
1749 case GLX_SHARE_CONTEXT_EXT:
1752 case GLX_VISUAL_ID_EXT:
1753 mode = glx_config_find_visual(psc->visuals, pProp[1]);
1755 case GLX_FBCONFIG_ID:
1756 mode = glx_config_find_fbconfig(psc->configs, pProp[1]);
1758 case GLX_RENDER_TYPE:
1759 renderType = pProp[1];
1766 ctx = indirect_create_context(psc, mode, NULL, renderType);
1770 ctx->xid = contextID;
1771 ctx->imported = GL_TRUE;
1772 ctx->share_xid = share;
1774 return (GLXContext) ctx;
1780 glXQueryContext(Display * dpy, GLXContext ctx_user, int attribute, int *value)
1782 struct glx_context *ctx = (struct glx_context *) ctx_user;
1784 switch (attribute) {
1785 case GLX_SHARE_CONTEXT_EXT:
1786 *value = ctx->share_xid;
1788 case GLX_VISUAL_ID_EXT:
1789 *value = ctx->config ? ctx->config->visualID : None;
1792 *value = ctx->screen;
1794 case GLX_FBCONFIG_ID:
1795 *value = ctx->config ? ctx->config->fbconfigID : None;
1797 case GLX_RENDER_TYPE:
1798 *value = ctx->renderType;
1801 return GLX_BAD_ATTRIBUTE;
1807 GLX_ALIAS(int, glXQueryContextInfoEXT,
1808 (Display * dpy, GLXContext ctx, int attribute, int *value),
1809 (dpy, ctx, attribute, value), glXQueryContext)
1811 _X_EXPORT GLXContextID glXGetContextIDEXT(const GLXContext ctx_user)
1813 struct glx_context *ctx = (struct glx_context *) ctx_user;
1819 glXFreeContextEXT(Display * dpy, GLXContext ctx)
1821 DestroyContext(dpy, ctx);
1825 _X_EXPORT GLXFBConfig *
1826 glXChooseFBConfig(Display * dpy, int screen,
1827 const int *attribList, int *nitems)
1829 struct glx_config **config_list;
1833 config_list = (struct glx_config **)
1834 glXGetFBConfigs(dpy, screen, &list_size);
1836 if ((config_list != NULL) && (list_size > 0) && (attribList != NULL)) {
1837 list_size = choose_visual(config_list, list_size, attribList, GL_TRUE);
1838 if (list_size == 0) {
1844 *nitems = list_size;
1845 return (GLXFBConfig *) config_list;
1849 _X_EXPORT GLXContext
1850 glXCreateNewContext(Display * dpy, GLXFBConfig fbconfig,
1851 int renderType, GLXContext shareList, Bool allowDirect)
1853 struct glx_config *config = (struct glx_config *) fbconfig;
1855 return CreateContext(dpy, config->fbconfigID, config, shareList,
1856 allowDirect, X_GLXCreateNewContext, renderType,
1861 _X_EXPORT GLXDrawable
1862 glXGetCurrentReadDrawable(void)
1864 struct glx_context *gc = __glXGetCurrentContext();
1866 return gc->currentReadable;
1870 _X_EXPORT GLXFBConfig *
1871 glXGetFBConfigs(Display * dpy, int screen, int *nelements)
1873 struct glx_display *priv = __glXInitialize(dpy);
1874 struct glx_config **config_list = NULL;
1875 struct glx_config *config;
1876 unsigned num_configs = 0;
1880 if (priv && (priv->screens != NULL)
1881 && (screen >= 0) && (screen <= ScreenCount(dpy))
1882 && (priv->screens[screen]->configs != NULL)
1883 && (priv->screens[screen]->configs->fbconfigID
1884 != (int) GLX_DONT_CARE)) {
1886 for (config = priv->screens[screen]->configs; config != NULL;
1887 config = config->next) {
1888 if (config->fbconfigID != (int) GLX_DONT_CARE) {
1893 config_list = Xmalloc(num_configs * sizeof *config_list);
1894 if (config_list != NULL) {
1895 *nelements = num_configs;
1897 for (config = priv->screens[screen]->configs; config != NULL;
1898 config = config->next) {
1899 if (config->fbconfigID != (int) GLX_DONT_CARE) {
1900 config_list[i] = config;
1907 return (GLXFBConfig *) config_list;
1912 glXGetFBConfigAttrib(Display * dpy, GLXFBConfig fbconfig,
1913 int attribute, int *value)
1915 struct glx_config *config = ValidateGLXFBConfig(dpy, fbconfig);
1918 return GLXBadFBConfig;
1920 return glx_config_get(config, attribute, value);
1924 _X_EXPORT XVisualInfo *
1925 glXGetVisualFromFBConfig(Display * dpy, GLXFBConfig fbconfig)
1927 XVisualInfo visualTemplate;
1928 struct glx_config *config = (struct glx_config *) fbconfig;
1932 ** Get a list of all visuals, return if list is empty
1934 visualTemplate.visualid = config->visualID;
1935 return XGetVisualInfo(dpy, VisualIDMask, &visualTemplate, &count);
1938 #ifndef GLX_USE_APPLEGL
1940 ** GLX_SGI_swap_control
1943 __glXSwapIntervalSGI(int interval)
1945 xGLXVendorPrivateReq *req;
1946 struct glx_context *gc = __glXGetCurrentContext();
1947 struct glx_screen *psc;
1949 CARD32 *interval_ptr;
1953 return GLX_BAD_CONTEXT;
1956 if (interval <= 0) {
1957 return GLX_BAD_VALUE;
1960 psc = GetGLXScreenConfigs( gc->currentDpy, gc->screen);
1962 #ifdef GLX_DIRECT_RENDERING
1963 if (gc->isDirect && psc->driScreen && psc->driScreen->setSwapInterval) {
1964 __GLXDRIdrawable *pdraw =
1965 GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable);
1966 psc->driScreen->setSwapInterval(pdraw, interval);
1971 dpy = gc->currentDpy;
1972 opcode = __glXSetupForCommand(dpy);
1977 /* Send the glXSwapIntervalSGI request */
1979 GetReqExtra(GLXVendorPrivate, sizeof(CARD32), req);
1980 req->reqType = opcode;
1981 req->glxCode = X_GLXVendorPrivate;
1982 req->vendorCode = X_GLXvop_SwapIntervalSGI;
1983 req->contextTag = gc->currentContextTag;
1985 interval_ptr = (CARD32 *) (req + 1);
1986 *interval_ptr = interval;
1997 ** GLX_MESA_swap_control
2000 __glXSwapIntervalMESA(unsigned int interval)
2002 #ifdef GLX_DIRECT_RENDERING
2003 struct glx_context *gc = __glXGetCurrentContext();
2005 if (gc != NULL && gc->isDirect) {
2006 struct glx_screen *psc;
2008 psc = GetGLXScreenConfigs( gc->currentDpy, gc->screen);
2009 if (psc->driScreen && psc->driScreen->setSwapInterval) {
2010 __GLXDRIdrawable *pdraw =
2011 GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable);
2012 return psc->driScreen->setSwapInterval(pdraw, interval);
2017 return GLX_BAD_CONTEXT;
2022 __glXGetSwapIntervalMESA(void)
2024 #ifdef GLX_DIRECT_RENDERING
2025 struct glx_context *gc = __glXGetCurrentContext();
2027 if (gc != NULL && gc->isDirect) {
2028 struct glx_screen *psc;
2030 psc = GetGLXScreenConfigs( gc->currentDpy, gc->screen);
2031 if (psc->driScreen && psc->driScreen->getSwapInterval) {
2032 __GLXDRIdrawable *pdraw =
2033 GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable);
2034 return psc->driScreen->getSwapInterval(pdraw);
2044 ** GLX_SGI_video_sync
2047 __glXGetVideoSyncSGI(unsigned int *count)
2049 int64_t ust, msc, sbc;
2051 struct glx_context *gc = __glXGetCurrentContext();
2052 struct glx_screen *psc;
2053 #ifdef GLX_DIRECT_RENDERING
2054 __GLXDRIdrawable *pdraw;
2058 return GLX_BAD_CONTEXT;
2060 #ifdef GLX_DIRECT_RENDERING
2062 return GLX_BAD_CONTEXT;
2065 psc = GetGLXScreenConfigs(gc->currentDpy, gc->screen);
2066 #ifdef GLX_DIRECT_RENDERING
2067 pdraw = GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable);
2070 /* FIXME: Looking at the GLX_SGI_video_sync spec in the extension registry,
2071 * FIXME: there should be a GLX encoding for this call. I can find no
2072 * FIXME: documentation for the GLX encoding.
2074 #ifdef GLX_DIRECT_RENDERING
2075 if (psc->driScreen && psc->driScreen->getDrawableMSC) {
2076 ret = psc->driScreen->getDrawableMSC(psc, pdraw, &ust, &msc, &sbc);
2077 *count = (unsigned) msc;
2078 return (ret == True) ? 0 : GLX_BAD_CONTEXT;
2082 return GLX_BAD_CONTEXT;
2086 __glXWaitVideoSyncSGI(int divisor, int remainder, unsigned int *count)
2088 struct glx_context *gc = __glXGetCurrentContext();
2089 struct glx_screen *psc;
2090 #ifdef GLX_DIRECT_RENDERING
2091 __GLXDRIdrawable *pdraw;
2093 int64_t ust, msc, sbc;
2096 if (divisor <= 0 || remainder < 0)
2097 return GLX_BAD_VALUE;
2100 return GLX_BAD_CONTEXT;
2102 #ifdef GLX_DIRECT_RENDERING
2104 return GLX_BAD_CONTEXT;
2107 psc = GetGLXScreenConfigs( gc->currentDpy, gc->screen);
2108 #ifdef GLX_DIRECT_RENDERING
2109 pdraw = GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable);
2112 #ifdef GLX_DIRECT_RENDERING
2113 if (psc->driScreen && psc->driScreen->waitForMSC) {
2114 ret = psc->driScreen->waitForMSC(pdraw, 0, divisor, remainder, &ust, &msc,
2116 *count = (unsigned) msc;
2117 return (ret == True) ? 0 : GLX_BAD_CONTEXT;
2121 return GLX_BAD_CONTEXT;
2124 #endif /* GLX_USE_APPLEGL */
2127 ** GLX_SGIX_fbconfig
2128 ** Many of these functions are aliased to GLX 1.3 entry points in the
2129 ** GLX_functions table.
2133 GLX_ALIAS(int, glXGetFBConfigAttribSGIX,
2134 (Display * dpy, GLXFBConfigSGIX config, int attribute, int *value),
2135 (dpy, config, attribute, value), glXGetFBConfigAttrib)
2137 _X_EXPORT GLX_ALIAS(GLXFBConfigSGIX *, glXChooseFBConfigSGIX,
2138 (Display * dpy, int screen, int *attrib_list,
2139 int *nelements), (dpy, screen, attrib_list, nelements),
2142 _X_EXPORT GLX_ALIAS(XVisualInfo *, glXGetVisualFromFBConfigSGIX,
2143 (Display * dpy, GLXFBConfigSGIX config),
2144 (dpy, config), glXGetVisualFromFBConfig)
2147 glXCreateGLXPixmapWithConfigSGIX(Display * dpy,
2148 GLXFBConfigSGIX fbconfig,
2151 #ifndef GLX_USE_APPLEGL
2152 xGLXVendorPrivateWithReplyReq *vpreq;
2153 xGLXCreateGLXPixmapWithConfigSGIXReq *req;
2154 GLXPixmap xid = None;
2156 struct glx_screen *psc;
2158 struct glx_config *config = (struct glx_config *) fbconfig;
2161 if ((dpy == NULL) || (config == NULL)) {
2164 #ifdef GLX_USE_APPLEGL
2165 if(apple_glx_pixmap_create(dpy, config->screen, pixmap, config))
2170 psc = GetGLXScreenConfigs(dpy, config->screen);
2172 && __glXExtensionBitIsEnabled(psc, SGIX_fbconfig_bit)) {
2173 opcode = __glXSetupForCommand(dpy);
2178 /* Send the glXCreateGLXPixmapWithConfigSGIX request */
2180 GetReqExtra(GLXVendorPrivateWithReply,
2181 sz_xGLXCreateGLXPixmapWithConfigSGIXReq -
2182 sz_xGLXVendorPrivateWithReplyReq, vpreq);
2183 req = (xGLXCreateGLXPixmapWithConfigSGIXReq *) vpreq;
2184 req->reqType = opcode;
2185 req->glxCode = X_GLXVendorPrivateWithReply;
2186 req->vendorCode = X_GLXvop_CreateGLXPixmapWithConfigSGIX;
2187 req->screen = config->screen;
2188 req->fbconfig = config->fbconfigID;
2189 req->pixmap = pixmap;
2190 req->glxpixmap = xid = XAllocID(dpy);
2199 _X_EXPORT GLXContext
2200 glXCreateContextWithConfigSGIX(Display * dpy,
2201 GLXFBConfigSGIX fbconfig, int renderType,
2202 GLXContext shareList, Bool allowDirect)
2204 GLXContext gc = NULL;
2205 struct glx_config *config = (struct glx_config *) fbconfig;
2206 struct glx_screen *psc;
2209 if ((dpy == NULL) || (config == NULL)) {
2213 psc = GetGLXScreenConfigs(dpy, config->screen);
2215 && __glXExtensionBitIsEnabled(psc, SGIX_fbconfig_bit)) {
2216 gc = CreateContext(dpy, config->fbconfigID, config, shareList,
2218 X_GLXvop_CreateContextWithConfigSGIX, renderType,
2226 _X_EXPORT GLXFBConfigSGIX
2227 glXGetFBConfigFromVisualSGIX(Display * dpy, XVisualInfo * vis)
2229 struct glx_display *priv;
2230 struct glx_screen *psc = NULL;
2232 if ((GetGLXPrivScreenConfig(dpy, vis->screen, &priv, &psc) != Success)
2233 && __glXExtensionBitIsEnabled(psc, SGIX_fbconfig_bit)
2234 && (psc->configs->fbconfigID != (int) GLX_DONT_CARE)) {
2235 return (GLXFBConfigSGIX) glx_config_find_visual(psc->configs,
2242 #ifndef GLX_USE_APPLEGL
2244 ** GLX_SGIX_swap_group
2247 __glXJoinSwapGroupSGIX(Display * dpy, GLXDrawable drawable,
2257 ** GLX_SGIX_swap_barrier
2260 __glXBindSwapBarrierSGIX(Display * dpy, GLXDrawable drawable, int barrier)
2268 __glXQueryMaxSwapBarriersSGIX(Display * dpy, int screen, int *max)
2278 ** GLX_OML_sync_control
2281 __glXGetSyncValuesOML(Display * dpy, GLXDrawable drawable,
2282 int64_t * ust, int64_t * msc, int64_t * sbc)
2284 struct glx_display * const priv = __glXInitialize(dpy);
2286 #ifdef GLX_DIRECT_RENDERING
2287 __GLXDRIdrawable *pdraw;
2289 struct glx_screen *psc;
2294 #ifdef GLX_DIRECT_RENDERING
2295 pdraw = GetGLXDRIDrawable(dpy, drawable);
2296 psc = pdraw ? pdraw->psc : NULL;
2297 if (pdraw && psc->driScreen->getDrawableMSC) {
2298 ret = psc->driScreen->getDrawableMSC(psc, pdraw, ust, msc, sbc);
2306 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
2308 __glxGetMscRate(__GLXDRIdrawable *glxDraw,
2309 int32_t * numerator, int32_t * denominator)
2312 struct glx_screen *psc;
2313 XF86VidModeModeLine mode_line;
2318 if (XF86VidModeQueryVersion(psc->dpy, &i, &i) &&
2319 XF86VidModeGetModeLine(psc->dpy, psc->scr, &dot_clock, &mode_line)) {
2320 unsigned n = dot_clock * 1000;
2321 unsigned d = mode_line.vtotal * mode_line.htotal;
2323 # define V_INTERLACE 0x010
2324 # define V_DBLSCAN 0x020
2326 if (mode_line.flags & V_INTERLACE)
2328 else if (mode_line.flags & V_DBLSCAN)
2331 /* The OML_sync_control spec requires that if the refresh rate is a
2332 * whole number, that the returned numerator be equal to the refresh
2333 * rate and the denominator be 1.
2341 static const unsigned f[] = { 13, 11, 7, 5, 3, 2, 0 };
2343 /* This is a poor man's way to reduce a fraction. It's far from
2344 * perfect, but it will work well enough for this situation.
2347 for (i = 0; f[i] != 0; i++) {
2348 while (n % f[i] == 0 && d % f[i] == 0) {
2374 * Determine the refresh rate of the specified drawable and display.
2376 * \param dpy Display whose refresh rate is to be determined.
2377 * \param drawable Drawable whose refresh rate is to be determined.
2378 * \param numerator Numerator of the refresh rate.
2379 * \param demoninator Denominator of the refresh rate.
2380 * \return If the refresh rate for the specified display and drawable could
2381 * be calculated, True is returned. Otherwise False is returned.
2383 * \note This function is implemented entirely client-side. A lot of other
2384 * functionality is required to export GLX_OML_sync_control, so on
2385 * XFree86 this function can be called for direct-rendering contexts
2386 * when GLX_OML_sync_control appears in the client extension string.
2390 __glXGetMscRateOML(Display * dpy, GLXDrawable drawable,
2391 int32_t * numerator, int32_t * denominator)
2393 #if defined( GLX_DIRECT_RENDERING ) && defined( XF86VIDMODE )
2394 __GLXDRIdrawable *draw = GetGLXDRIDrawable(dpy, drawable);
2399 return __glxGetMscRate(draw, numerator, denominator);
2411 __glXSwapBuffersMscOML(Display * dpy, GLXDrawable drawable,
2412 int64_t target_msc, int64_t divisor, int64_t remainder)
2414 struct glx_context *gc = __glXGetCurrentContext();
2415 #ifdef GLX_DIRECT_RENDERING
2416 __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable);
2417 struct glx_screen *psc = pdraw ? pdraw->psc : NULL;
2420 if (!gc) /* no GLX for this */
2423 #ifdef GLX_DIRECT_RENDERING
2424 if (!pdraw || !gc->isDirect)
2428 /* The OML_sync_control spec says these should "generate a GLX_BAD_VALUE
2429 * error", but it also says "It [glXSwapBuffersMscOML] will return a value
2430 * of -1 if the function failed because of errors detected in the input
2433 if (divisor < 0 || remainder < 0 || target_msc < 0)
2435 if (divisor > 0 && remainder >= divisor)
2438 if (target_msc == 0 && divisor == 0 && remainder == 0)
2441 #ifdef GLX_DIRECT_RENDERING
2442 if (psc->driScreen && psc->driScreen->swapBuffers)
2443 return (*psc->driScreen->swapBuffers)(pdraw, target_msc, divisor,
2452 __glXWaitForMscOML(Display * dpy, GLXDrawable drawable,
2453 int64_t target_msc, int64_t divisor,
2454 int64_t remainder, int64_t * ust,
2455 int64_t * msc, int64_t * sbc)
2457 #ifdef GLX_DIRECT_RENDERING
2458 __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable);
2460 struct glx_screen *psc = pdraw ? pdraw->psc : NULL;
2464 /* The OML_sync_control spec says these should "generate a GLX_BAD_VALUE
2465 * error", but the return type in the spec is Bool.
2467 if (divisor < 0 || remainder < 0 || target_msc < 0)
2469 if (divisor > 0 && remainder >= divisor)
2472 #ifdef GLX_DIRECT_RENDERING
2473 if (pdraw && psc->driScreen && psc->driScreen->waitForMSC) {
2474 ret = psc->driScreen->waitForMSC(pdraw, target_msc, divisor, remainder,
2485 __glXWaitForSbcOML(Display * dpy, GLXDrawable drawable,
2486 int64_t target_sbc, int64_t * ust,
2487 int64_t * msc, int64_t * sbc)
2489 #ifdef GLX_DIRECT_RENDERING
2490 __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable);
2492 struct glx_screen *psc = pdraw ? pdraw->psc : NULL;
2495 /* The OML_sync_control spec says this should "generate a GLX_BAD_VALUE
2496 * error", but the return type in the spec is Bool.
2501 #ifdef GLX_DIRECT_RENDERING
2502 if (pdraw && psc->driScreen && psc->driScreen->waitForSBC) {
2503 ret = psc->driScreen->waitForSBC(pdraw, target_sbc, ust, msc, sbc);
2515 * Mesa extension stubs. These will help reduce portability problems.
2520 * Release all buffers associated with the specified GLX drawable.
2523 * This function was intended for stand-alone Mesa. The issue there is that
2524 * the library doesn't get any notification when a window is closed. In
2525 * DRI there is a similar but slightly different issue. When GLX 1.3 is
2526 * supported, there are 3 different functions to destroy a drawable. It
2527 * should be possible to create GLX protocol (or have it determine which
2528 * protocol to use based on the type of the drawable) to have one function
2529 * do the work of 3. For the direct-rendering case, this function could
2530 * just call the driver's \c __DRIdrawableRec::destroyDrawable function.
2531 * This would reduce the frequency with which \c __driGarbageCollectDrawables
2532 * would need to be used. This really should be done as part of the new DRI
2535 * \sa http://oss.sgi.com/projects/ogl-sample/registry/MESA/release_buffers.txt
2536 * __driGarbageCollectDrawables
2537 * glXDestroyGLXPixmap
2538 * glXDestroyPbuffer glXDestroyPixmap glXDestroyWindow
2539 * glXDestroyGLXPbufferSGIX glXDestroyGLXVideoSourceSGIX
2542 __glXReleaseBuffersMESA(Display * dpy, GLXDrawable d)
2551 glXCreateGLXPixmapMESA(Display * dpy, XVisualInfo * visual,
2552 Pixmap pixmap, Colormap cmap)
2565 * GLX_MESA_copy_sub_buffer
2567 #define X_GLXvop_CopySubBufferMESA 5154 /* temporary */
2569 __glXCopySubBufferMESA(Display * dpy, GLXDrawable drawable,
2570 int x, int y, int width, int height)
2572 xGLXVendorPrivateReq *req;
2573 struct glx_context *gc;
2575 CARD32 *drawable_ptr;
2576 INT32 *x_ptr, *y_ptr, *w_ptr, *h_ptr;
2579 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
2580 __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable);
2581 if (pdraw != NULL) {
2582 struct glx_screen *psc = pdraw->psc;
2583 if (psc->driScreen->copySubBuffer != NULL) {
2585 (*psc->driScreen->copySubBuffer) (pdraw, x, y, width, height);
2592 opcode = __glXSetupForCommand(dpy);
2597 ** The calling thread may or may not have a current context. If it
2598 ** does, send the context tag so the server can do a flush.
2600 gc = __glXGetCurrentContext();
2601 if ((gc != NULL) && (dpy == gc->currentDpy) &&
2602 ((drawable == gc->currentDrawable) ||
2603 (drawable == gc->currentReadable))) {
2604 tag = gc->currentContextTag;
2611 GetReqExtra(GLXVendorPrivate, sizeof(CARD32) + sizeof(INT32) * 4, req);
2612 req->reqType = opcode;
2613 req->glxCode = X_GLXVendorPrivate;
2614 req->vendorCode = X_GLXvop_CopySubBufferMESA;
2615 req->contextTag = tag;
2617 drawable_ptr = (CARD32 *) (req + 1);
2618 x_ptr = (INT32 *) (drawable_ptr + 1);
2619 y_ptr = (INT32 *) (drawable_ptr + 2);
2620 w_ptr = (INT32 *) (drawable_ptr + 3);
2621 h_ptr = (INT32 *) (drawable_ptr + 4);
2623 *drawable_ptr = drawable;
2635 * GLX_EXT_texture_from_pixmap
2638 indirect_bind_tex_image(Display * dpy,
2639 GLXDrawable drawable,
2640 int buffer, const int *attrib_list)
2642 xGLXVendorPrivateReq *req;
2643 struct glx_context *gc = __glXGetCurrentContext();
2644 CARD32 *drawable_ptr;
2646 CARD32 *num_attrib_ptr;
2653 while (attrib_list[i * 2] != None)
2657 opcode = __glXSetupForCommand(dpy);
2662 GetReqExtra(GLXVendorPrivate, 12 + 8 * i, req);
2663 req->reqType = opcode;
2664 req->glxCode = X_GLXVendorPrivate;
2665 req->vendorCode = X_GLXvop_BindTexImageEXT;
2666 req->contextTag = gc->currentContextTag;
2668 drawable_ptr = (CARD32 *) (req + 1);
2669 buffer_ptr = (INT32 *) (drawable_ptr + 1);
2670 num_attrib_ptr = (CARD32 *) (buffer_ptr + 1);
2671 attrib_ptr = (CARD32 *) (num_attrib_ptr + 1);
2673 *drawable_ptr = drawable;
2674 *buffer_ptr = buffer;
2675 *num_attrib_ptr = (CARD32) i;
2679 while (attrib_list[i * 2] != None) {
2680 *attrib_ptr++ = (CARD32) attrib_list[i * 2 + 0];
2681 *attrib_ptr++ = (CARD32) attrib_list[i * 2 + 1];
2691 indirect_release_tex_image(Display * dpy, GLXDrawable drawable, int buffer)
2693 xGLXVendorPrivateReq *req;
2694 struct glx_context *gc = __glXGetCurrentContext();
2695 CARD32 *drawable_ptr;
2699 opcode = __glXSetupForCommand(dpy);
2704 GetReqExtra(GLXVendorPrivate, sizeof(CARD32) + sizeof(INT32), req);
2705 req->reqType = opcode;
2706 req->glxCode = X_GLXVendorPrivate;
2707 req->vendorCode = X_GLXvop_ReleaseTexImageEXT;
2708 req->contextTag = gc->currentContextTag;
2710 drawable_ptr = (CARD32 *) (req + 1);
2711 buffer_ptr = (INT32 *) (drawable_ptr + 1);
2713 *drawable_ptr = drawable;
2714 *buffer_ptr = buffer;
2720 static const struct glx_context_vtable indirect_context_vtable = {
2721 indirect_destroy_context,
2722 indirect_bind_context,
2723 indirect_unbind_context,
2726 indirect_use_x_font,
2727 indirect_bind_tex_image,
2728 indirect_release_tex_image,
2733 __glXBindTexImageEXT(Display * dpy,
2734 GLXDrawable drawable, int buffer, const int *attrib_list)
2736 struct glx_context *gc = __glXGetCurrentContext();
2738 if (gc == NULL || gc->vtable->bind_tex_image == NULL)
2741 gc->vtable->bind_tex_image(dpy, drawable, buffer, attrib_list);
2745 __glXReleaseTexImageEXT(Display * dpy, GLXDrawable drawable, int buffer)
2747 struct glx_context *gc = __glXGetCurrentContext();
2749 if (gc == NULL || gc->vtable->release_tex_image == NULL)
2752 gc->vtable->release_tex_image(dpy, drawable, buffer);
2757 #endif /* GLX_USE_APPLEGL */
2760 * \c strdup is actually not a standard ANSI C or POSIX routine.
2761 * Irix will not define it if ANSI mode is in effect.
2766 __glXstrdup(const char *str)
2769 copy = (char *) Xmalloc(strlen(str) + 1);
2777 ** glXGetProcAddress support
2780 struct name_address_pair
2786 #define GLX_FUNCTION(f) { # f, (GLvoid *) f }
2787 #define GLX_FUNCTION2(n,f) { # n, (GLvoid *) f }
2789 static const struct name_address_pair GLX_functions[] = {
2790 /*** GLX_VERSION_1_0 ***/
2791 GLX_FUNCTION(glXChooseVisual),
2792 GLX_FUNCTION(glXCopyContext),
2793 GLX_FUNCTION(glXCreateContext),
2794 GLX_FUNCTION(glXCreateGLXPixmap),
2795 GLX_FUNCTION(glXDestroyContext),
2796 GLX_FUNCTION(glXDestroyGLXPixmap),
2797 GLX_FUNCTION(glXGetConfig),
2798 GLX_FUNCTION(glXGetCurrentContext),
2799 GLX_FUNCTION(glXGetCurrentDrawable),
2800 GLX_FUNCTION(glXIsDirect),
2801 GLX_FUNCTION(glXMakeCurrent),
2802 GLX_FUNCTION(glXQueryExtension),
2803 GLX_FUNCTION(glXQueryVersion),
2804 GLX_FUNCTION(glXSwapBuffers),
2805 GLX_FUNCTION(glXUseXFont),
2806 GLX_FUNCTION(glXWaitGL),
2807 GLX_FUNCTION(glXWaitX),
2809 /*** GLX_VERSION_1_1 ***/
2810 GLX_FUNCTION(glXGetClientString),
2811 GLX_FUNCTION(glXQueryExtensionsString),
2812 GLX_FUNCTION(glXQueryServerString),
2814 /*** GLX_VERSION_1_2 ***/
2815 GLX_FUNCTION(glXGetCurrentDisplay),
2817 /*** GLX_VERSION_1_3 ***/
2818 GLX_FUNCTION(glXChooseFBConfig),
2819 GLX_FUNCTION(glXCreateNewContext),
2820 GLX_FUNCTION(glXCreatePbuffer),
2821 GLX_FUNCTION(glXCreatePixmap),
2822 GLX_FUNCTION(glXCreateWindow),
2823 GLX_FUNCTION(glXDestroyPbuffer),
2824 GLX_FUNCTION(glXDestroyPixmap),
2825 GLX_FUNCTION(glXDestroyWindow),
2826 GLX_FUNCTION(glXGetCurrentReadDrawable),
2827 GLX_FUNCTION(glXGetFBConfigAttrib),
2828 GLX_FUNCTION(glXGetFBConfigs),
2829 GLX_FUNCTION(glXGetSelectedEvent),
2830 GLX_FUNCTION(glXGetVisualFromFBConfig),
2831 GLX_FUNCTION(glXMakeContextCurrent),
2832 GLX_FUNCTION(glXQueryContext),
2833 GLX_FUNCTION(glXQueryDrawable),
2834 GLX_FUNCTION(glXSelectEvent),
2836 #ifndef GLX_USE_APPLEGL
2837 /*** GLX_SGI_swap_control ***/
2838 GLX_FUNCTION2(glXSwapIntervalSGI, __glXSwapIntervalSGI),
2840 /*** GLX_SGI_video_sync ***/
2841 GLX_FUNCTION2(glXGetVideoSyncSGI, __glXGetVideoSyncSGI),
2842 GLX_FUNCTION2(glXWaitVideoSyncSGI, __glXWaitVideoSyncSGI),
2844 /*** GLX_SGI_make_current_read ***/
2845 GLX_FUNCTION2(glXMakeCurrentReadSGI, glXMakeContextCurrent),
2846 GLX_FUNCTION2(glXGetCurrentReadDrawableSGI, glXGetCurrentReadDrawable),
2848 /*** GLX_EXT_import_context ***/
2849 GLX_FUNCTION(glXFreeContextEXT),
2850 GLX_FUNCTION(glXGetContextIDEXT),
2851 GLX_FUNCTION2(glXGetCurrentDisplayEXT, glXGetCurrentDisplay),
2852 GLX_FUNCTION(glXImportContextEXT),
2853 GLX_FUNCTION2(glXQueryContextInfoEXT, glXQueryContext),
2856 /*** GLX_SGIX_fbconfig ***/
2857 GLX_FUNCTION2(glXGetFBConfigAttribSGIX, glXGetFBConfigAttrib),
2858 GLX_FUNCTION2(glXChooseFBConfigSGIX, glXChooseFBConfig),
2859 GLX_FUNCTION(glXCreateGLXPixmapWithConfigSGIX),
2860 GLX_FUNCTION(glXCreateContextWithConfigSGIX),
2861 GLX_FUNCTION2(glXGetVisualFromFBConfigSGIX, glXGetVisualFromFBConfig),
2862 GLX_FUNCTION(glXGetFBConfigFromVisualSGIX),
2864 #ifndef GLX_USE_APPLEGL
2865 /*** GLX_SGIX_pbuffer ***/
2866 GLX_FUNCTION(glXCreateGLXPbufferSGIX),
2867 GLX_FUNCTION(glXDestroyGLXPbufferSGIX),
2868 GLX_FUNCTION(glXQueryGLXPbufferSGIX),
2869 GLX_FUNCTION(glXSelectEventSGIX),
2870 GLX_FUNCTION(glXGetSelectedEventSGIX),
2872 /*** GLX_SGIX_swap_group ***/
2873 GLX_FUNCTION2(glXJoinSwapGroupSGIX, __glXJoinSwapGroupSGIX),
2875 /*** GLX_SGIX_swap_barrier ***/
2876 GLX_FUNCTION2(glXBindSwapBarrierSGIX, __glXBindSwapBarrierSGIX),
2877 GLX_FUNCTION2(glXQueryMaxSwapBarriersSGIX, __glXQueryMaxSwapBarriersSGIX),
2879 /*** GLX_MESA_copy_sub_buffer ***/
2880 GLX_FUNCTION2(glXCopySubBufferMESA, __glXCopySubBufferMESA),
2882 /*** GLX_MESA_pixmap_colormap ***/
2883 GLX_FUNCTION(glXCreateGLXPixmapMESA),
2885 /*** GLX_MESA_release_buffers ***/
2886 GLX_FUNCTION2(glXReleaseBuffersMESA, __glXReleaseBuffersMESA),
2888 /*** GLX_MESA_swap_control ***/
2889 GLX_FUNCTION2(glXSwapIntervalMESA, __glXSwapIntervalMESA),
2890 GLX_FUNCTION2(glXGetSwapIntervalMESA, __glXGetSwapIntervalMESA),
2893 /*** GLX_ARB_get_proc_address ***/
2894 GLX_FUNCTION(glXGetProcAddressARB),
2897 GLX_FUNCTION2(glXGetProcAddress, glXGetProcAddressARB),
2899 #ifndef GLX_USE_APPLEGL
2900 /*** GLX_OML_sync_control ***/
2901 GLX_FUNCTION2(glXWaitForSbcOML, __glXWaitForSbcOML),
2902 GLX_FUNCTION2(glXWaitForMscOML, __glXWaitForMscOML),
2903 GLX_FUNCTION2(glXSwapBuffersMscOML, __glXSwapBuffersMscOML),
2904 GLX_FUNCTION2(glXGetMscRateOML, __glXGetMscRateOML),
2905 GLX_FUNCTION2(glXGetSyncValuesOML, __glXGetSyncValuesOML),
2907 /*** GLX_EXT_texture_from_pixmap ***/
2908 GLX_FUNCTION2(glXBindTexImageEXT, __glXBindTexImageEXT),
2909 GLX_FUNCTION2(glXReleaseTexImageEXT, __glXReleaseTexImageEXT),
2912 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
2913 /*** DRI configuration ***/
2914 GLX_FUNCTION(glXGetScreenDriver),
2915 GLX_FUNCTION(glXGetDriverConfig),
2918 {NULL, NULL} /* end of list */
2921 #ifndef GLX_USE_APPLEGL
2922 static const GLvoid *
2923 get_glx_proc_address(const char *funcName)
2927 /* try static functions */
2928 for (i = 0; GLX_functions[i].Name; i++) {
2929 if (strcmp(GLX_functions[i].Name, funcName) == 0)
2930 return GLX_functions[i].Address;
2938 * Get the address of a named GL function. This is the pre-GLX 1.4 name for
2939 * \c glXGetProcAddress.
2941 * \param procName Name of a GL or GLX function.
2942 * \returns A pointer to the named function
2944 * \sa glXGetProcAddress
2946 _X_EXPORT void (*glXGetProcAddressARB(const GLubyte * procName)) (void)
2948 typedef void (*gl_function) (void);
2952 /* Search the table of GLX and internal functions first. If that
2953 * fails and the supplied name could be a valid core GL name, try
2954 * searching the core GL function table. This check is done to prevent
2955 * DRI based drivers from searching the core GL function table for
2956 * internal API functions.
2958 #ifdef GLX_USE_APPLEGL
2959 f = (gl_function) apple_glx_get_proc_address(procName);
2961 f = (gl_function) get_glx_proc_address((const char *) procName);
2962 if ((f == NULL) && (procName[0] == 'g') && (procName[1] == 'l')
2963 && (procName[2] != 'X')) {
2964 f = (gl_function) _glapi_get_proc_address((const char *) procName);
2971 * Get the address of a named GL function. This is the GLX 1.4 name for
2972 * \c glXGetProcAddressARB.
2974 * \param procName Name of a GL or GLX function.
2975 * \returns A pointer to the named function
2977 * \sa glXGetProcAddressARB
2979 _X_EXPORT void (*glXGetProcAddress(const GLubyte * procName)) (void)
2980 #if defined(__GNUC__) && !defined(GLX_ALIAS_UNSUPPORTED)
2981 __attribute__ ((alias("glXGetProcAddressARB")));
2984 return glXGetProcAddressARB(procName);
2986 #endif /* __GNUC__ */
2989 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
2991 * Get the unadjusted system time (UST). Currently, the UST is measured in
2992 * microseconds since Epoc. The actual resolution of the UST may vary from
2993 * system to system, and the units may vary from release to release.
2994 * Drivers should not call this function directly. They should instead use
2995 * \c glXGetProcAddress to obtain a pointer to the function.
2997 * \param ust Location to store the 64-bit UST
2998 * \returns Zero on success or a negative errno value on failure.
3000 * \sa glXGetProcAddress, PFNGLXGETUSTPROC
3002 * \since Internal API version 20030317.
3005 __glXGetUST(int64_t * ust)
3013 if (gettimeofday(&tv, NULL) == 0) {
3014 ust[0] = (tv.tv_sec * 1000000) + tv.tv_usec;
3021 #endif /* GLX_DIRECT_RENDERING */