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"
40 #include "glx_error.h"
42 #ifdef GLX_DIRECT_RENDERING
43 #ifdef GLX_USE_APPLEGL
44 #include "apple/apple_glx_context.h"
45 #include "apple/apple_glx.h"
49 #include <X11/extensions/xf86vmode.h>
54 #include <X11/Xlib-xcb.h>
57 #include "GL/mesa_glinterop.h"
59 static const char __glXGLXClientVendorName[] = "Mesa Project and SGI";
60 static const char __glXGLXClientVersion[] = "1.4";
62 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
65 * Get the __DRIdrawable for the drawable associated with a GLXContext
67 * \param dpy The display associated with \c drawable.
68 * \param drawable GLXDrawable whose __DRIdrawable part is to be retrieved.
69 * \param scrn_num If non-NULL, the drawables screen is stored there
70 * \returns A pointer to the context's __DRIdrawable on success, or NULL if
71 * the drawable is not associated with a direct-rendering context.
73 _X_HIDDEN __GLXDRIdrawable *
74 GetGLXDRIDrawable(Display * dpy, GLXDrawable drawable)
76 struct glx_display *priv = __glXInitialize(dpy);
77 __GLXDRIdrawable *pdraw;
82 if (__glxHashLookup(priv->drawHash, drawable, (void *) &pdraw) == 0)
90 _X_HIDDEN struct glx_drawable *
91 GetGLXDrawable(Display *dpy, GLXDrawable drawable)
93 struct glx_display *priv = __glXInitialize(dpy);
94 struct glx_drawable *glxDraw;
99 if (__glxHashLookup(priv->glXDrawHash, drawable, (void *) &glxDraw) == 0)
106 InitGLXDrawable(Display *dpy, struct glx_drawable *glxDraw, XID xDrawable,
107 GLXDrawable drawable)
109 struct glx_display *priv = __glXInitialize(dpy);
114 glxDraw->xDrawable = xDrawable;
115 glxDraw->drawable = drawable;
116 glxDraw->lastEventSbc = 0;
117 glxDraw->eventSbcWrap = 0;
119 return __glxHashInsert(priv->glXDrawHash, drawable, glxDraw);
123 DestroyGLXDrawable(Display *dpy, GLXDrawable drawable)
125 struct glx_display *priv = __glXInitialize(dpy);
126 struct glx_drawable *glxDraw;
131 glxDraw = GetGLXDrawable(dpy, drawable);
132 __glxHashDelete(priv->glXDrawHash, drawable);
137 * Get the GLX per-screen data structure associated with a GLX context.
139 * \param dpy Display for which the GLX per-screen information is to be
141 * \param scrn Screen on \c dpy for which the GLX per-screen information is
143 * \returns A pointer to the GLX per-screen data if \c dpy and \c scrn
144 * specify a valid GLX screen, or NULL otherwise.
146 * \todo Should this function validate that \c scrn is within the screen
147 * number range for \c dpy?
150 _X_HIDDEN struct glx_screen *
151 GetGLXScreenConfigs(Display * dpy, int scrn)
153 struct glx_display *const priv = __glXInitialize(dpy);
157 NULL) ? priv->screens[scrn] : NULL;
162 GetGLXPrivScreenConfig(Display * dpy, int scrn, struct glx_display ** ppriv,
163 struct glx_screen ** ppsc)
165 /* Initialize the extension, if needed . This has the added value
166 * of initializing/allocating the display private
170 return GLX_NO_EXTENSION;
173 *ppriv = __glXInitialize(dpy);
174 if (*ppriv == NULL) {
175 return GLX_NO_EXTENSION;
178 /* Check screen number to see if its valid */
179 if ((scrn < 0) || (scrn >= ScreenCount(dpy))) {
180 return GLX_BAD_SCREEN;
183 /* Check to see if the GL is supported on this screen */
184 *ppsc = (*ppriv)->screens[scrn];
185 if ((*ppsc)->configs == NULL && (*ppsc)->visuals == NULL) {
186 /* No support for GL on this screen regardless of visual */
187 return GLX_BAD_VISUAL;
195 * Determine if a \c GLXFBConfig supplied by the application is valid.
197 * \param dpy Application supplied \c Display pointer.
198 * \param config Application supplied \c GLXFBConfig.
200 * \returns If the \c GLXFBConfig is valid, the a pointer to the matching
201 * \c struct glx_config structure is returned. Otherwise, \c NULL
204 static struct glx_config *
205 ValidateGLXFBConfig(Display * dpy, GLXFBConfig fbconfig)
207 struct glx_display *const priv = __glXInitialize(dpy);
208 int num_screens = ScreenCount(dpy);
210 struct glx_config *config;
213 for (i = 0; i < num_screens; i++) {
214 for (config = priv->screens[i]->configs; config != NULL;
215 config = config->next) {
216 if (config == (struct glx_config *) fbconfig) {
227 * Verifies context's GLX_RENDER_TYPE value with config.
229 * \param config GLX FBConfig which will support the returned renderType.
230 * \param renderType The context render type to be verified.
231 * \return True if the value of context renderType was approved, or 0 if no
232 * valid value was found.
235 validate_renderType_against_config(const struct glx_config *config,
238 switch (renderType) {
240 return (config->renderType & GLX_RGBA_BIT) != 0;
241 case GLX_COLOR_INDEX_TYPE:
242 return (config->renderType & GLX_COLOR_INDEX_BIT) != 0;
243 case GLX_RGBA_FLOAT_TYPE_ARB:
244 return (config->renderType & GLX_RGBA_FLOAT_BIT_ARB) != 0;
245 case GLX_RGBA_UNSIGNED_FLOAT_TYPE_EXT:
246 return (config->renderType & GLX_RGBA_UNSIGNED_FLOAT_BIT_EXT) != 0;
254 glx_context_init(struct glx_context *gc,
255 struct glx_screen *psc, struct glx_config *config)
257 gc->majorOpcode = __glXSetupForCommand(psc->display->dpy);
258 if (!gc->majorOpcode)
261 gc->screen = psc->scr;
264 gc->isDirect = GL_TRUE;
265 gc->currentContextTag = -1;
272 * Create a new context.
274 * \param renderType For FBConfigs, what is the rendering type?
278 CreateContext(Display *dpy, int generic_id, struct glx_config *config,
279 GLXContext shareList_user, Bool allowDirect,
280 unsigned code, int renderType, int screen)
282 struct glx_context *gc;
283 struct glx_screen *psc;
284 struct glx_context *shareList = (struct glx_context *) shareList_user;
288 psc = GetGLXScreenConfigs(dpy, screen);
292 if (generic_id == None)
296 #ifdef GLX_USE_APPLEGL
297 gc = applegl_create_context(psc, config, shareList, renderType);
299 if (allowDirect && psc->vtable->create_context)
300 gc = psc->vtable->create_context(psc, config, shareList, renderType);
302 gc = indirect_create_context(psc, config, shareList, renderType);
309 case X_GLXCreateContext: {
310 xGLXCreateContextReq *req;
312 /* Send the glXCreateContext request */
313 GetReq(GLXCreateContext, req);
314 req->reqType = gc->majorOpcode;
315 req->glxCode = X_GLXCreateContext;
316 req->context = gc->xid = XAllocID(dpy);
317 req->visual = generic_id;
318 req->screen = screen;
319 req->shareList = shareList ? shareList->xid : None;
320 req->isDirect = gc->isDirect;
324 case X_GLXCreateNewContext: {
325 xGLXCreateNewContextReq *req;
327 /* Send the glXCreateNewContext request */
328 GetReq(GLXCreateNewContext, req);
329 req->reqType = gc->majorOpcode;
330 req->glxCode = X_GLXCreateNewContext;
331 req->context = gc->xid = XAllocID(dpy);
332 req->fbconfig = generic_id;
333 req->screen = screen;
334 req->renderType = renderType;
335 req->shareList = shareList ? shareList->xid : None;
336 req->isDirect = gc->isDirect;
340 case X_GLXvop_CreateContextWithConfigSGIX: {
341 xGLXVendorPrivateWithReplyReq *vpreq;
342 xGLXCreateContextWithConfigSGIXReq *req;
344 /* Send the glXCreateNewContext request */
345 GetReqExtra(GLXVendorPrivateWithReply,
346 sz_xGLXCreateContextWithConfigSGIXReq -
347 sz_xGLXVendorPrivateWithReplyReq, vpreq);
348 req = (xGLXCreateContextWithConfigSGIXReq *) vpreq;
349 req->reqType = gc->majorOpcode;
350 req->glxCode = X_GLXVendorPrivateWithReply;
351 req->vendorCode = X_GLXvop_CreateContextWithConfigSGIX;
352 req->context = gc->xid = XAllocID(dpy);
353 req->fbconfig = generic_id;
354 req->screen = screen;
355 req->renderType = renderType;
356 req->shareList = shareList ? shareList->xid : None;
357 req->isDirect = gc->isDirect;
362 /* What to do here? This case is the sign of an internal error. It
363 * should never be reachable.
371 gc->share_xid = shareList ? shareList->xid : None;
372 gc->imported = GL_FALSE;
374 return (GLXContext) gc;
377 _GLX_PUBLIC GLXContext
378 glXCreateContext(Display * dpy, XVisualInfo * vis,
379 GLXContext shareList, Bool allowDirect)
381 struct glx_config *config = NULL;
382 int renderType = GLX_RGBA_TYPE;
384 #if defined(GLX_DIRECT_RENDERING) || defined(GLX_USE_APPLEGL)
385 struct glx_screen *const psc = GetGLXScreenConfigs(dpy, vis->screen);
388 config = glx_config_find_visual(psc->visuals, vis->visualid);
390 if (config == NULL) {
393 error.errorCode = BadValue;
394 error.resourceID = vis->visualid;
395 error.sequenceNumber = dpy->request;
396 error.type = X_Error;
397 error.majorCode = __glXSetupForCommand(dpy);
398 error.minorCode = X_GLXCreateContext;
399 _XError(dpy, &error);
403 /* Choose the context render type based on DRI config values. It is
404 * unusual to set this type from config, but we have no other choice, as
405 * this old API does not provide renderType parameter.
407 if (config->renderType & GLX_RGBA_FLOAT_BIT_ARB) {
408 renderType = GLX_RGBA_FLOAT_TYPE_ARB;
409 } else if (config->renderType & GLX_RGBA_UNSIGNED_FLOAT_BIT_EXT) {
410 renderType = GLX_RGBA_UNSIGNED_FLOAT_TYPE_EXT;
411 } else if (config->renderType & GLX_RGBA_BIT) {
412 renderType = GLX_RGBA_TYPE;
413 } else if (config->renderType & GLX_COLOR_INDEX_BIT) {
414 renderType = GLX_COLOR_INDEX_TYPE;
415 } else if (config->rgbMode) {
416 /* If we're here, then renderType is not set correctly. Let's use a
417 * safeguard - any TrueColor or DirectColor mode is RGB mode. Such
418 * default value is needed by old DRI drivers, which didn't set
419 * renderType correctly as the value was just ignored.
421 renderType = GLX_RGBA_TYPE;
423 /* Safeguard - only one option left, all non-RGB modes are indexed
424 * modes. Again, this allows drivers with invalid renderType to work
427 renderType = GLX_COLOR_INDEX_TYPE;
431 return CreateContext(dpy, vis->visualid, config, shareList, allowDirect,
432 X_GLXCreateContext, renderType, vis->screen);
436 glx_send_destroy_context(Display *dpy, XID xid)
438 CARD8 opcode = __glXSetupForCommand(dpy);
439 xGLXDestroyContextReq *req;
442 GetReq(GLXDestroyContext, req);
443 req->reqType = opcode;
444 req->glxCode = X_GLXDestroyContext;
451 ** Destroy the named context
455 glXDestroyContext(Display * dpy, GLXContext ctx)
457 struct glx_context *gc = (struct glx_context *) ctx;
459 if (gc == NULL || gc->xid == None)
464 glx_send_destroy_context(dpy, gc->xid);
466 if (gc->currentDpy) {
467 /* This context is bound to some thread. According to the man page,
468 * we should not actually delete the context until it's unbound.
469 * Note that we set gc->xid = None above. In MakeContextCurrent()
470 * we check for that and delete the context there.
474 gc->vtable->destroy(gc);
480 ** Return the major and minor version #s for the GLX extension
483 glXQueryVersion(Display * dpy, int *major, int *minor)
485 struct glx_display *priv;
487 /* Init the extension. This fetches the major and minor version. */
488 priv = __glXInitialize(dpy);
493 *major = priv->majorVersion;
495 *minor = priv->minorVersion;
500 ** Query the existence of the GLX extension
503 glXQueryExtension(Display * dpy, int *errorBase, int *eventBase)
505 int major_op, erb, evb;
508 rv = XQueryExtension(dpy, GLX_EXTENSION_NAME, &major_op, &evb, &erb);
519 ** Put a barrier in the token stream that forces the GL to finish its
520 ** work before X can proceed.
525 struct glx_context *gc = __glXGetCurrentContext();
527 if (gc != &dummyContext && gc->vtable->wait_gl)
528 gc->vtable->wait_gl(gc);
532 ** Put a barrier in the token stream that forces X to finish its
533 ** work before GL can proceed.
538 struct glx_context *gc = __glXGetCurrentContext();
540 if (gc != &dummyContext && gc->vtable->wait_x)
541 gc->vtable->wait_x(gc);
545 glXUseXFont(Font font, int first, int count, int listBase)
547 struct glx_context *gc = __glXGetCurrentContext();
549 if (gc != &dummyContext && gc->vtable->use_x_font)
550 gc->vtable->use_x_font(gc, font, first, count, listBase);
553 /************************************************************************/
556 ** Copy the source context to the destination context using the
560 glXCopyContext(Display * dpy, GLXContext source_user,
561 GLXContext dest_user, unsigned long mask)
563 struct glx_context *source = (struct glx_context *) source_user;
564 struct glx_context *dest = (struct glx_context *) dest_user;
565 #ifdef GLX_USE_APPLEGL
566 struct glx_context *gc = __glXGetCurrentContext();
570 if(apple_glx_copy_context(gc->driContext, source->driContext, dest->driContext,
571 mask, &errorcode, &x11error)) {
572 __glXSendError(dpy, errorcode, 0, X_GLXCopyContext, x11error);
576 xGLXCopyContextReq *req;
577 struct glx_context *gc = __glXGetCurrentContext();
581 opcode = __glXSetupForCommand(dpy);
586 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
588 /* NOT_DONE: This does not work yet */
593 ** If the source is the current context, send its tag so that the context
594 ** can be flushed before the copy.
596 if (source == gc && dpy == gc->currentDpy) {
597 tag = gc->currentContextTag;
603 /* Send the glXCopyContext request */
605 GetReq(GLXCopyContext, req);
606 req->reqType = opcode;
607 req->glxCode = X_GLXCopyContext;
608 req->source = source ? source->xid : None;
609 req->dest = dest ? dest->xid : None;
611 req->contextTag = tag;
614 #endif /* GLX_USE_APPLEGL */
619 * Determine if a context uses direct rendering.
621 * \param dpy Display where the context was created.
622 * \param contextID ID of the context to be tested.
624 * \returns \c True if the context is direct rendering or not.
627 __glXIsDirect(Display * dpy, GLXContextID contextID)
631 xcb_generic_error_t *err;
632 xcb_glx_is_direct_reply_t *reply;
635 opcode = __glXSetupForCommand(dpy);
640 c = XGetXCBConnection(dpy);
641 reply = xcb_glx_is_direct_reply(c, xcb_glx_is_direct(c, contextID), &err);
642 is_direct = (reply != NULL && reply->is_direct) ? True : False;
645 __glXSendErrorForXcb(dpy, err);
656 * Shouldn't this function \b always return \c False when
657 * \c GLX_DIRECT_RENDERING is not defined? Do we really need to bother with
658 * the GLX protocol here at all?
661 glXIsDirect(Display * dpy, GLXContext gc_user)
663 struct glx_context *gc = (struct glx_context *) gc_user;
668 else if (gc->isDirect) {
671 #ifdef GLX_USE_APPLEGL /* TODO: indirect on darwin */
674 return __glXIsDirect(dpy, gc->xid);
678 _GLX_PUBLIC GLXPixmap
679 glXCreateGLXPixmap(Display * dpy, XVisualInfo * vis, Pixmap pixmap)
681 #ifdef GLX_USE_APPLEGL
682 int screen = vis->screen;
683 struct glx_screen *const psc = GetGLXScreenConfigs(dpy, screen);
684 const struct glx_config *config;
686 config = glx_config_find_visual(psc->visuals, vis->visualid);
688 if(apple_glx_pixmap_create(dpy, vis->screen, pixmap, config))
693 xGLXCreateGLXPixmapReq *req;
694 struct glx_drawable *glxDraw;
698 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
699 struct glx_display *const priv = __glXInitialize(dpy);
705 opcode = __glXSetupForCommand(dpy);
710 glxDraw = malloc(sizeof(*glxDraw));
714 /* Send the glXCreateGLXPixmap request */
716 GetReq(GLXCreateGLXPixmap, req);
717 req->reqType = opcode;
718 req->glxCode = X_GLXCreateGLXPixmap;
719 req->screen = vis->screen;
720 req->visual = vis->visualid;
721 req->pixmap = pixmap;
722 req->glxpixmap = xid = XAllocID(dpy);
726 if (InitGLXDrawable(dpy, glxDraw, pixmap, req->glxpixmap)) {
731 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
733 /* FIXME: Maybe delay __DRIdrawable creation until the drawable
734 * is actually bound to a context... */
736 __GLXDRIdrawable *pdraw;
737 struct glx_screen *psc;
738 struct glx_config *config;
740 psc = priv->screens[vis->screen];
741 if (psc->driScreen == NULL)
744 config = glx_config_find_visual(psc->visuals, vis->visualid);
745 pdraw = psc->driScreen->createDrawable(psc, pixmap, xid, config);
747 fprintf(stderr, "failed to create pixmap\n");
752 if (__glxHashInsert(priv->drawHash, xid, pdraw)) {
753 (*pdraw->destroyDrawable) (pdraw);
760 xGLXDestroyGLXPixmapReq *dreq;
762 GetReq(GLXDestroyGLXPixmap, dreq);
763 dreq->reqType = opcode;
764 dreq->glxCode = X_GLXDestroyGLXPixmap;
765 dreq->glxpixmap = xid;
776 ** Destroy the named pixmap
779 glXDestroyGLXPixmap(Display * dpy, GLXPixmap glxpixmap)
781 #ifdef GLX_USE_APPLEGL
782 if(apple_glx_pixmap_destroy(dpy, glxpixmap))
783 __glXSendError(dpy, GLXBadPixmap, glxpixmap, X_GLXDestroyPixmap, false);
785 xGLXDestroyGLXPixmapReq *req;
788 opcode = __glXSetupForCommand(dpy);
793 /* Send the glXDestroyGLXPixmap request */
795 GetReq(GLXDestroyGLXPixmap, req);
796 req->reqType = opcode;
797 req->glxCode = X_GLXDestroyGLXPixmap;
798 req->glxpixmap = glxpixmap;
802 DestroyGLXDrawable(dpy, glxpixmap);
804 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
806 struct glx_display *const priv = __glXInitialize(dpy);
807 __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, glxpixmap);
809 if (priv != NULL && pdraw != NULL) {
810 (*pdraw->destroyDrawable) (pdraw);
811 __glxHashDelete(priv->drawHash, glxpixmap);
815 #endif /* GLX_USE_APPLEGL */
819 glXSwapBuffers(Display * dpy, GLXDrawable drawable)
821 #ifdef GLX_USE_APPLEGL
822 struct glx_context * gc = __glXGetCurrentContext();
823 if(gc != &DummyContext && apple_glx_is_current_drawable(dpy, gc->driContext, drawable)) {
824 apple_glx_swap_buffers(gc->driContext);
826 __glXSendError(dpy, GLXBadCurrentWindow, 0, X_GLXSwapBuffers, false);
829 struct glx_context *gc;
834 gc = __glXGetCurrentContext();
836 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
838 __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable);
841 Bool flush = gc != &dummyContext && drawable == gc->currentDrawable;
843 (*pdraw->psc->driScreen->swapBuffers)(pdraw, 0, 0, 0, flush);
849 opcode = __glXSetupForCommand(dpy);
855 ** The calling thread may or may not have a current context. If it
856 ** does, send the context tag so the server can do a flush.
858 if ((gc != &dummyContext) && (dpy == gc->currentDpy) &&
859 ((drawable == gc->currentDrawable)
860 || (drawable == gc->currentReadable))) {
861 tag = gc->currentContextTag;
867 c = XGetXCBConnection(dpy);
868 xcb_glx_swap_buffers(c, tag, drawable);
870 #endif /* GLX_USE_APPLEGL */
875 ** Return configuration information for the given display, screen and
876 ** visual combination.
879 glXGetConfig(Display * dpy, XVisualInfo * vis, int attribute,
882 struct glx_display *priv;
883 struct glx_screen *psc;
884 struct glx_config *config;
887 status = GetGLXPrivScreenConfig(dpy, vis->screen, &priv, &psc);
888 if (status == Success) {
889 config = glx_config_find_visual(psc->visuals, vis->visualid);
891 /* Lookup attribute after first finding a match on the visual */
892 if (config != NULL) {
893 return glx_config_get(config, attribute, value_return);
896 status = GLX_BAD_VISUAL;
900 ** If we can't find the config for this visual, this visual is not
901 ** supported by the OpenGL implementation on the server.
903 if ((status == GLX_BAD_VISUAL) && (attribute == GLX_USE_GL)) {
904 *value_return = False;
911 /************************************************************************/
914 init_fbconfig_for_chooser(struct glx_config * config,
915 GLboolean fbconfig_style_tags)
917 memset(config, 0, sizeof(struct glx_config));
918 config->visualID = (XID) GLX_DONT_CARE;
919 config->visualType = GLX_DONT_CARE;
921 /* glXChooseFBConfig specifies different defaults for these properties than
924 if (fbconfig_style_tags) {
925 config->rgbMode = GL_TRUE;
926 config->doubleBufferMode = GLX_DONT_CARE;
927 config->renderType = GLX_RGBA_BIT;
930 config->drawableType = GLX_WINDOW_BIT;
931 config->visualRating = GLX_DONT_CARE;
932 config->transparentPixel = GLX_NONE;
933 config->transparentRed = GLX_DONT_CARE;
934 config->transparentGreen = GLX_DONT_CARE;
935 config->transparentBlue = GLX_DONT_CARE;
936 config->transparentAlpha = GLX_DONT_CARE;
937 config->transparentIndex = GLX_DONT_CARE;
939 config->xRenderable = GLX_DONT_CARE;
940 config->fbconfigID = (GLXFBConfigID) (GLX_DONT_CARE);
942 config->swapMethod = GLX_DONT_CARE;
945 #define MATCH_DONT_CARE( param ) \
947 if ( ((int) a-> param != (int) GLX_DONT_CARE) \
948 && (a-> param != b-> param) ) { \
953 #define MATCH_MINIMUM( param ) \
955 if ( ((int) a-> param != (int) GLX_DONT_CARE) \
956 && (a-> param > b-> param) ) { \
961 #define MATCH_EXACT( param ) \
963 if ( a-> param != b-> param) { \
968 /* Test that all bits from a are contained in b */
969 #define MATCH_MASK(param) \
971 if ( ((int) a-> param != (int) GLX_DONT_CARE) \
972 && ((a->param & ~b->param) != 0) ) { \
978 * Determine if two GLXFBConfigs are compatible.
980 * \param a Application specified config to test.
981 * \param b Server specified config to test against \c a.
984 fbconfigs_compatible(const struct glx_config * const a,
985 const struct glx_config * const b)
987 MATCH_DONT_CARE(doubleBufferMode);
988 MATCH_DONT_CARE(visualType);
989 MATCH_DONT_CARE(visualRating);
990 MATCH_DONT_CARE(xRenderable);
991 MATCH_DONT_CARE(fbconfigID);
992 MATCH_DONT_CARE(swapMethod);
994 MATCH_MINIMUM(rgbBits);
995 MATCH_MINIMUM(numAuxBuffers);
996 MATCH_MINIMUM(redBits);
997 MATCH_MINIMUM(greenBits);
998 MATCH_MINIMUM(blueBits);
999 MATCH_MINIMUM(alphaBits);
1000 MATCH_MINIMUM(depthBits);
1001 MATCH_MINIMUM(stencilBits);
1002 MATCH_MINIMUM(accumRedBits);
1003 MATCH_MINIMUM(accumGreenBits);
1004 MATCH_MINIMUM(accumBlueBits);
1005 MATCH_MINIMUM(accumAlphaBits);
1006 MATCH_MINIMUM(sampleBuffers);
1007 MATCH_MINIMUM(maxPbufferWidth);
1008 MATCH_MINIMUM(maxPbufferHeight);
1009 MATCH_MINIMUM(maxPbufferPixels);
1010 MATCH_MINIMUM(samples);
1012 MATCH_DONT_CARE(stereoMode);
1015 MATCH_MASK(drawableType);
1016 MATCH_MASK(renderType);
1018 /* There is a bug in a few of the XFree86 DDX drivers. They contain
1019 * visuals with a "transparent type" of 0 when they really mean GLX_NONE.
1020 * Technically speaking, it is a bug in the DDX driver, but there is
1021 * enough of an installed base to work around the problem here. In any
1022 * case, 0 is not a valid value of the transparent type, so we'll treat 0
1023 * from the app as GLX_DONT_CARE. We'll consider GLX_NONE from the app and
1024 * 0 from the server to be a match to maintain backward compatibility with
1025 * the (broken) drivers.
1028 if (a->transparentPixel != (int) GLX_DONT_CARE && a->transparentPixel != 0) {
1029 if (a->transparentPixel == GLX_NONE) {
1030 if (b->transparentPixel != GLX_NONE && b->transparentPixel != 0)
1034 MATCH_EXACT(transparentPixel);
1037 switch (a->transparentPixel) {
1038 case GLX_TRANSPARENT_RGB:
1039 MATCH_DONT_CARE(transparentRed);
1040 MATCH_DONT_CARE(transparentGreen);
1041 MATCH_DONT_CARE(transparentBlue);
1042 MATCH_DONT_CARE(transparentAlpha);
1045 case GLX_TRANSPARENT_INDEX:
1046 MATCH_DONT_CARE(transparentIndex);
1058 /* There's some trickly language in the GLX spec about how this is supposed
1059 * to work. Basically, if a given component size is either not specified
1060 * or the requested size is zero, it is supposed to act like PERFER_SMALLER.
1061 * Well, that's really hard to do with the code as-is. This behavior is
1062 * closer to correct, but still not technically right.
1064 #define PREFER_LARGER_OR_ZERO(comp) \
1066 if ( ((*a)-> comp) != ((*b)-> comp) ) { \
1067 if ( ((*a)-> comp) == 0 ) { \
1070 else if ( ((*b)-> comp) == 0 ) { \
1074 return ((*b)-> comp) - ((*a)-> comp) ; \
1079 #define PREFER_LARGER(comp) \
1081 if ( ((*a)-> comp) != ((*b)-> comp) ) { \
1082 return ((*b)-> comp) - ((*a)-> comp) ; \
1086 #define PREFER_SMALLER(comp) \
1088 if ( ((*a)-> comp) != ((*b)-> comp) ) { \
1089 return ((*a)-> comp) - ((*b)-> comp) ; \
1094 * Compare two GLXFBConfigs. This function is intended to be used as the
1095 * compare function passed in to qsort.
1097 * \returns If \c a is a "better" config, according to the specification of
1098 * SGIX_fbconfig, a number less than zero is returned. If \c b is
1099 * better, then a number greater than zero is return. If both are
1100 * equal, zero is returned.
1101 * \sa qsort, glXChooseVisual, glXChooseFBConfig, glXChooseFBConfigSGIX
1104 fbconfig_compare(struct glx_config **a, struct glx_config **b)
1106 /* The order of these comparisons must NOT change. It is defined by
1107 * the GLX 1.4 specification.
1110 PREFER_SMALLER(visualSelectGroup);
1112 /* The sort order for the visualRating is GLX_NONE, GLX_SLOW, and
1113 * GLX_NON_CONFORMANT_CONFIG. It just so happens that this is the
1114 * numerical sort order of the enums (0x8000, 0x8001, and 0x800D).
1116 PREFER_SMALLER(visualRating);
1118 /* This isn't quite right. It is supposed to compare the sum of the
1119 * components the user specifically set minimums for.
1121 PREFER_LARGER_OR_ZERO(redBits);
1122 PREFER_LARGER_OR_ZERO(greenBits);
1123 PREFER_LARGER_OR_ZERO(blueBits);
1124 PREFER_LARGER_OR_ZERO(alphaBits);
1126 PREFER_SMALLER(rgbBits);
1128 if (((*a)->doubleBufferMode != (*b)->doubleBufferMode)) {
1129 /* Prefer single-buffer.
1131 return (!(*a)->doubleBufferMode) ? -1 : 1;
1134 PREFER_SMALLER(numAuxBuffers);
1136 PREFER_SMALLER(sampleBuffers);
1137 PREFER_SMALLER(samples);
1139 PREFER_LARGER_OR_ZERO(depthBits);
1140 PREFER_SMALLER(stencilBits);
1142 /* This isn't quite right. It is supposed to compare the sum of the
1143 * components the user specifically set minimums for.
1145 PREFER_LARGER_OR_ZERO(accumRedBits);
1146 PREFER_LARGER_OR_ZERO(accumGreenBits);
1147 PREFER_LARGER_OR_ZERO(accumBlueBits);
1148 PREFER_LARGER_OR_ZERO(accumAlphaBits);
1150 PREFER_SMALLER(visualType);
1152 /* None of the pbuffer or fbconfig specs say that this comparison needs
1153 * to happen at all, but it seems like it should.
1155 PREFER_LARGER(maxPbufferWidth);
1156 PREFER_LARGER(maxPbufferHeight);
1157 PREFER_LARGER(maxPbufferPixels);
1164 * Selects and sorts a subset of the supplied configs based on the attributes.
1165 * This function forms to basis of \c glXChooseFBConfig and
1166 * \c glXChooseFBConfigSGIX.
1168 * \param configs Array of pointers to possible configs. The elements of
1169 * this array that do not meet the criteria will be set to
1170 * NULL. The remaining elements will be sorted according to
1171 * the various visual / FBConfig selection rules.
1172 * \param num_configs Number of elements in the \c configs array.
1173 * \param attribList Attributes used select from \c configs. This array is
1174 * terminated by a \c None tag. The array is of the form
1175 * expected by \c glXChooseFBConfig (where every tag has a
1177 * \returns The number of valid elements left in \c configs.
1179 * \sa glXChooseFBConfig, glXChooseFBConfigSGIX
1182 choose_fbconfig(struct glx_config ** configs, int num_configs,
1183 const int *attribList)
1185 struct glx_config test_config;
1189 /* This is a fairly direct implementation of the selection method
1190 * described by GLX_SGIX_fbconfig. Start by culling out all the
1191 * configs that are not compatible with the selected parameter
1195 init_fbconfig_for_chooser(&test_config, GL_TRUE);
1196 __glXInitializeVisualConfigFromTags(&test_config, 512,
1197 (const INT32 *) attribList,
1201 for (i = 0; i < num_configs; i++) {
1202 if (fbconfigs_compatible(&test_config, configs[i])) {
1203 configs[base] = configs[i];
1212 if (base < num_configs) {
1213 (void) memset(&configs[base], 0, sizeof(void *) * (num_configs - base));
1216 /* After the incompatible configs are removed, the resulting
1217 * list is sorted according to the rules set out in the various
1221 qsort(configs, base, sizeof(struct glx_config *),
1222 (int (*)(const void *, const void *)) fbconfig_compare);
1230 ** Return the visual that best matches the template. Return None if no
1231 ** visual matches the template.
1233 _GLX_PUBLIC XVisualInfo *
1234 glXChooseVisual(Display * dpy, int screen, int *attribList)
1236 XVisualInfo *visualList = NULL;
1237 struct glx_display *priv;
1238 struct glx_screen *psc;
1239 struct glx_config test_config;
1240 struct glx_config *config;
1241 struct glx_config *best_config = NULL;
1244 ** Get a list of all visuals, return if list is empty
1246 if (GetGLXPrivScreenConfig(dpy, screen, &priv, &psc) != Success) {
1252 ** Build a template from the defaults and the attribute list
1253 ** Free visual list and return if an unexpected token is encountered
1255 init_fbconfig_for_chooser(&test_config, GL_FALSE);
1256 __glXInitializeVisualConfigFromTags(&test_config, 512,
1257 (const INT32 *) attribList,
1261 ** Eliminate visuals that don't meet minimum requirements
1262 ** Compute a score for those that do
1263 ** Remember which visual, if any, got the highest score
1264 ** If no visual is acceptable, return None
1265 ** Otherwise, create an XVisualInfo list with just the selected X visual
1268 for (config = psc->visuals; config != NULL; config = config->next) {
1269 if (fbconfigs_compatible(&test_config, config)
1270 && ((best_config == NULL) ||
1271 (fbconfig_compare (&config, &best_config) < 0))) {
1272 XVisualInfo visualTemplate;
1273 XVisualInfo *newList;
1276 visualTemplate.screen = screen;
1277 visualTemplate.visualid = config->visualID;
1278 newList = XGetVisualInfo(dpy, VisualScreenMask | VisualIDMask,
1279 &visualTemplate, &i);
1283 visualList = newList;
1284 best_config = config;
1289 #ifdef GLX_USE_APPLEGL
1290 if(visualList && getenv("LIBGL_DUMP_VISUALID")) {
1291 printf("visualid 0x%lx\n", visualList[0].visualid);
1299 _GLX_PUBLIC const char *
1300 glXQueryExtensionsString(Display * dpy, int screen)
1302 struct glx_screen *psc;
1303 struct glx_display *priv;
1305 if (GetGLXPrivScreenConfig(dpy, screen, &priv, &psc) != Success) {
1309 if (!psc->effectiveGLXexts) {
1310 if (!psc->serverGLXexts) {
1311 psc->serverGLXexts =
1312 __glXQueryServerString(dpy, priv->majorOpcode, screen,
1316 __glXCalculateUsableExtensions(psc,
1317 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
1318 (psc->driScreen != NULL),
1322 priv->minorVersion);
1325 return psc->effectiveGLXexts;
1328 _GLX_PUBLIC const char *
1329 glXGetClientString(Display * dpy, int name)
1335 return (__glXGLXClientVendorName);
1337 return (__glXGLXClientVersion);
1338 case GLX_EXTENSIONS:
1339 return (__glXGetClientExtensions());
1345 _GLX_PUBLIC const char *
1346 glXQueryServerString(Display * dpy, int screen, int name)
1348 struct glx_screen *psc;
1349 struct glx_display *priv;
1353 if (GetGLXPrivScreenConfig(dpy, screen, &priv, &psc) != Success) {
1359 str = &priv->serverGLXvendor;
1362 str = &priv->serverGLXversion;
1364 case GLX_EXTENSIONS:
1365 str = &psc->serverGLXexts;
1372 *str = __glXQueryServerString(dpy, priv->majorOpcode, screen, name);
1380 ** EXT_import_context
1383 _GLX_PUBLIC Display *
1384 glXGetCurrentDisplay(void)
1386 struct glx_context *gc = __glXGetCurrentContext();
1387 if (gc == &dummyContext)
1389 return gc->currentDpy;
1393 GLX_ALIAS(Display *, glXGetCurrentDisplayEXT, (void), (),
1394 glXGetCurrentDisplay)
1396 #ifndef GLX_USE_APPLEGL
1397 _GLX_PUBLIC GLXContext
1398 glXImportContextEXT(Display *dpy, GLXContextID contextID)
1400 struct glx_display *priv = __glXInitialize(dpy);
1401 struct glx_screen *psc = NULL;
1402 xGLXQueryContextReply reply;
1404 struct glx_context *ctx;
1406 /* This GLX implementation knows about 5 different properties, so
1407 * allow the server to send us one of each.
1409 int propList[5 * 2], *pProp, nPropListBytes;
1413 struct glx_config *mode;
1414 uint32_t fbconfigID = 0;
1415 uint32_t visualID = 0;
1416 uint32_t screen = 0;
1417 Bool got_screen = False;
1422 /* The GLX_EXT_import_context spec says:
1424 * "If <contextID> does not refer to a valid context, then a BadContext
1425 * error is generated; if <contextID> refers to direct rendering
1426 * context then no error is generated but glXImportContextEXT returns
1429 * If contextID is None, generate BadContext on the client-side. Other
1430 * sorts of invalid contexts will be detected by the server in the
1431 * __glXIsDirect call.
1433 if (contextID == None) {
1434 __glXSendError(dpy, GLXBadContext, contextID, X_GLXIsDirect, false);
1438 if (__glXIsDirect(dpy, contextID))
1441 opcode = __glXSetupForCommand(dpy);
1445 /* Send the glXQueryContextInfoEXT request */
1448 if (priv->majorVersion > 1 || priv->minorVersion >= 3) {
1449 xGLXQueryContextReq *req;
1451 GetReq(GLXQueryContext, req);
1453 req->reqType = opcode;
1454 req->glxCode = X_GLXQueryContext;
1455 req->context = contextID;
1458 xGLXVendorPrivateReq *vpreq;
1459 xGLXQueryContextInfoEXTReq *req;
1461 GetReqExtra(GLXVendorPrivate,
1462 sz_xGLXQueryContextInfoEXTReq - sz_xGLXVendorPrivateReq,
1464 req = (xGLXQueryContextInfoEXTReq *) vpreq;
1465 req->reqType = opcode;
1466 req->glxCode = X_GLXVendorPrivateWithReply;
1467 req->vendorCode = X_GLXvop_QueryContextInfoEXT;
1468 req->context = contextID;
1471 _XReply(dpy, (xReply *) & reply, 0, False);
1473 if (reply.n <= __GLX_MAX_CONTEXT_PROPS)
1474 nPropListBytes = reply.n * 2 * sizeof propList[0];
1477 _XRead(dpy, (char *) propList, nPropListBytes);
1481 numProps = nPropListBytes / (2 * sizeof(propList[0]));
1484 renderType = GLX_RGBA_TYPE; /* By default, assume RGBA context */
1487 for (i = 0, pProp = propList; i < numProps; i++, pProp += 2)
1493 case GLX_SHARE_CONTEXT_EXT:
1496 case GLX_VISUAL_ID_EXT:
1497 visualID = pProp[1];
1499 case GLX_FBCONFIG_ID:
1500 fbconfigID = pProp[1];
1502 case GLX_RENDER_TYPE:
1503 renderType = pProp[1];
1510 psc = GetGLXScreenConfigs(dpy, screen);
1514 if (fbconfigID != 0) {
1515 mode = glx_config_find_fbconfig(psc->configs, fbconfigID);
1516 } else if (visualID != 0) {
1517 mode = glx_config_find_visual(psc->visuals, visualID);
1523 ctx = indirect_create_context(psc, mode, NULL, renderType);
1527 ctx->xid = contextID;
1528 ctx->imported = GL_TRUE;
1529 ctx->share_xid = share;
1531 return (GLXContext) ctx;
1537 glXQueryContext(Display * dpy, GLXContext ctx_user, int attribute, int *value)
1539 struct glx_context *ctx = (struct glx_context *) ctx_user;
1541 switch (attribute) {
1542 case GLX_SHARE_CONTEXT_EXT:
1543 *value = ctx->share_xid;
1545 case GLX_VISUAL_ID_EXT:
1546 *value = ctx->config ? ctx->config->visualID : None;
1549 *value = ctx->screen;
1551 case GLX_FBCONFIG_ID:
1552 *value = ctx->config ? ctx->config->fbconfigID : None;
1554 case GLX_RENDER_TYPE:
1555 *value = ctx->renderType;
1558 return GLX_BAD_ATTRIBUTE;
1564 GLX_ALIAS(int, glXQueryContextInfoEXT,
1565 (Display * dpy, GLXContext ctx, int attribute, int *value),
1566 (dpy, ctx, attribute, value), glXQueryContext)
1568 _GLX_PUBLIC GLXContextID glXGetContextIDEXT(const GLXContext ctx_user)
1570 struct glx_context *ctx = (struct glx_context *) ctx_user;
1572 return (ctx == NULL) ? None : ctx->xid;
1576 glXFreeContextEXT(Display *dpy, GLXContext ctx)
1578 struct glx_context *gc = (struct glx_context *) ctx;
1580 if (gc == NULL || gc->xid == None)
1583 /* The GLX_EXT_import_context spec says:
1585 * "glXFreeContext does not free the server-side context information or
1586 * the XID associated with the server-side context."
1588 * Don't send any protocol. Just destroy the client-side tracking of the
1589 * context. Also, only release the context structure if it's not current.
1592 if (gc->currentDpy) {
1595 gc->vtable->destroy(gc);
1600 _GLX_PUBLIC GLXFBConfig *
1601 glXChooseFBConfig(Display * dpy, int screen,
1602 const int *attribList, int *nitems)
1604 struct glx_config **config_list;
1608 config_list = (struct glx_config **)
1609 glXGetFBConfigs(dpy, screen, &list_size);
1611 if ((config_list != NULL) && (list_size > 0) && (attribList != NULL)) {
1612 list_size = choose_fbconfig(config_list, list_size, attribList);
1613 if (list_size == 0) {
1619 *nitems = list_size;
1620 return (GLXFBConfig *) config_list;
1624 _GLX_PUBLIC GLXContext
1625 glXCreateNewContext(Display * dpy, GLXFBConfig fbconfig,
1626 int renderType, GLXContext shareList, Bool allowDirect)
1628 struct glx_config *config = (struct glx_config *) fbconfig;
1629 struct glx_config **config_list;
1634 __glXSendError(dpy, GLXBadFBConfig, 0, X_GLXCreateNewContext, false);
1638 config_list = (struct glx_config **)
1639 glXGetFBConfigs(dpy, config->screen, &list_size);
1641 for (i = 0; i < list_size; i++) {
1642 if (config_list[i] == config)
1647 if (i == list_size) {
1648 __glXSendError(dpy, GLXBadFBConfig, 0, X_GLXCreateNewContext, false);
1652 return CreateContext(dpy, config->fbconfigID, config, shareList,
1653 allowDirect, X_GLXCreateNewContext, renderType,
1658 _GLX_PUBLIC GLXDrawable
1659 glXGetCurrentReadDrawable(void)
1661 struct glx_context *gc = __glXGetCurrentContext();
1663 return gc->currentReadable;
1667 _GLX_PUBLIC GLXFBConfig *
1668 glXGetFBConfigs(Display * dpy, int screen, int *nelements)
1670 struct glx_display *priv = __glXInitialize(dpy);
1671 struct glx_config **config_list = NULL;
1672 struct glx_config *config;
1673 unsigned num_configs = 0;
1677 if (priv && (priv->screens != NULL)
1678 && (screen >= 0) && (screen < ScreenCount(dpy))
1679 && (priv->screens[screen]->configs != NULL)
1680 && (priv->screens[screen]->configs->fbconfigID
1681 != (int) GLX_DONT_CARE)) {
1683 for (config = priv->screens[screen]->configs; config != NULL;
1684 config = config->next) {
1685 if (config->fbconfigID != (int) GLX_DONT_CARE) {
1690 config_list = malloc(num_configs * sizeof *config_list);
1691 if (config_list != NULL) {
1692 *nelements = num_configs;
1694 for (config = priv->screens[screen]->configs; config != NULL;
1695 config = config->next) {
1696 if (config->fbconfigID != (int) GLX_DONT_CARE) {
1697 config_list[i] = config;
1704 return (GLXFBConfig *) config_list;
1709 glXGetFBConfigAttrib(Display * dpy, GLXFBConfig fbconfig,
1710 int attribute, int *value)
1712 struct glx_config *config = ValidateGLXFBConfig(dpy, fbconfig);
1715 return GLXBadFBConfig;
1717 return glx_config_get(config, attribute, value);
1721 _GLX_PUBLIC XVisualInfo *
1722 glXGetVisualFromFBConfig(Display * dpy, GLXFBConfig fbconfig)
1724 XVisualInfo visualTemplate;
1725 struct glx_config *config = (struct glx_config *) fbconfig;
1729 ** Get a list of all visuals, return if list is empty
1731 visualTemplate.visualid = config->visualID;
1732 return XGetVisualInfo(dpy, VisualIDMask, &visualTemplate, &count);
1735 #ifndef GLX_USE_APPLEGL
1737 ** GLX_SGI_swap_control
1740 __glXSwapIntervalSGI(int interval)
1742 xGLXVendorPrivateReq *req;
1743 struct glx_context *gc = __glXGetCurrentContext();
1744 struct glx_screen *psc;
1746 CARD32 *interval_ptr;
1749 if (gc == &dummyContext) {
1750 return GLX_BAD_CONTEXT;
1753 if (interval <= 0) {
1754 return GLX_BAD_VALUE;
1757 psc = GetGLXScreenConfigs( gc->currentDpy, gc->screen);
1759 #ifdef GLX_DIRECT_RENDERING
1760 if (gc->isDirect && psc && psc->driScreen &&
1761 psc->driScreen->setSwapInterval) {
1762 __GLXDRIdrawable *pdraw =
1763 GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable);
1764 /* Simply ignore the command if the GLX drawable has been destroyed but
1765 * the context is still bound.
1768 psc->driScreen->setSwapInterval(pdraw, interval);
1773 dpy = gc->currentDpy;
1774 opcode = __glXSetupForCommand(dpy);
1779 /* Send the glXSwapIntervalSGI request */
1781 GetReqExtra(GLXVendorPrivate, sizeof(CARD32), req);
1782 req->reqType = opcode;
1783 req->glxCode = X_GLXVendorPrivate;
1784 req->vendorCode = X_GLXvop_SwapIntervalSGI;
1785 req->contextTag = gc->currentContextTag;
1787 interval_ptr = (CARD32 *) (req + 1);
1788 *interval_ptr = interval;
1799 ** GLX_MESA_swap_control
1802 __glXSwapIntervalMESA(unsigned int interval)
1804 #ifdef GLX_DIRECT_RENDERING
1805 struct glx_context *gc = __glXGetCurrentContext();
1807 if (gc != &dummyContext && gc->isDirect) {
1808 struct glx_screen *psc;
1810 psc = GetGLXScreenConfigs( gc->currentDpy, gc->screen);
1811 if (psc && psc->driScreen && psc->driScreen->setSwapInterval) {
1812 __GLXDRIdrawable *pdraw =
1813 GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable);
1815 /* Simply ignore the command if the GLX drawable has been destroyed but
1816 * the context is still bound.
1821 return psc->driScreen->setSwapInterval(pdraw, interval);
1826 return GLX_BAD_CONTEXT;
1831 __glXGetSwapIntervalMESA(void)
1833 #ifdef GLX_DIRECT_RENDERING
1834 struct glx_context *gc = __glXGetCurrentContext();
1836 if (gc != &dummyContext && gc->isDirect) {
1837 struct glx_screen *psc;
1839 psc = GetGLXScreenConfigs( gc->currentDpy, gc->screen);
1840 if (psc && psc->driScreen && psc->driScreen->getSwapInterval) {
1841 __GLXDRIdrawable *pdraw =
1842 GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable);
1844 return psc->driScreen->getSwapInterval(pdraw);
1854 ** GLX_SGI_video_sync
1857 __glXGetVideoSyncSGI(unsigned int *count)
1859 int64_t ust, msc, sbc;
1861 struct glx_context *gc = __glXGetCurrentContext();
1862 struct glx_screen *psc;
1863 #ifdef GLX_DIRECT_RENDERING
1864 __GLXDRIdrawable *pdraw;
1867 if (gc == &dummyContext)
1868 return GLX_BAD_CONTEXT;
1870 #ifdef GLX_DIRECT_RENDERING
1872 return GLX_BAD_CONTEXT;
1875 psc = GetGLXScreenConfigs(gc->currentDpy, gc->screen);
1876 #ifdef GLX_DIRECT_RENDERING
1877 pdraw = GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable);
1880 /* FIXME: Looking at the GLX_SGI_video_sync spec in the extension registry,
1881 * FIXME: there should be a GLX encoding for this call. I can find no
1882 * FIXME: documentation for the GLX encoding.
1884 #ifdef GLX_DIRECT_RENDERING
1885 if (psc && psc->driScreen && psc->driScreen->getDrawableMSC) {
1886 ret = psc->driScreen->getDrawableMSC(psc, pdraw, &ust, &msc, &sbc);
1887 *count = (unsigned) msc;
1888 return (ret == True) ? 0 : GLX_BAD_CONTEXT;
1892 return GLX_BAD_CONTEXT;
1896 __glXWaitVideoSyncSGI(int divisor, int remainder, unsigned int *count)
1898 struct glx_context *gc = __glXGetCurrentContext();
1899 struct glx_screen *psc;
1900 #ifdef GLX_DIRECT_RENDERING
1901 __GLXDRIdrawable *pdraw;
1903 int64_t ust, msc, sbc;
1906 if (divisor <= 0 || remainder < 0)
1907 return GLX_BAD_VALUE;
1909 if (gc == &dummyContext)
1910 return GLX_BAD_CONTEXT;
1912 #ifdef GLX_DIRECT_RENDERING
1914 return GLX_BAD_CONTEXT;
1917 psc = GetGLXScreenConfigs( gc->currentDpy, gc->screen);
1918 #ifdef GLX_DIRECT_RENDERING
1919 pdraw = GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable);
1922 #ifdef GLX_DIRECT_RENDERING
1923 if (psc && psc->driScreen && psc->driScreen->waitForMSC) {
1924 ret = psc->driScreen->waitForMSC(pdraw, 0, divisor, remainder, &ust, &msc,
1926 *count = (unsigned) msc;
1927 return (ret == True) ? 0 : GLX_BAD_CONTEXT;
1931 return GLX_BAD_CONTEXT;
1934 #endif /* GLX_USE_APPLEGL */
1937 ** GLX_SGIX_fbconfig
1938 ** Many of these functions are aliased to GLX 1.3 entry points in the
1939 ** GLX_functions table.
1943 GLX_ALIAS(int, glXGetFBConfigAttribSGIX,
1944 (Display * dpy, GLXFBConfigSGIX config, int attribute, int *value),
1945 (dpy, config, attribute, value), glXGetFBConfigAttrib)
1947 _GLX_PUBLIC GLX_ALIAS(GLXFBConfigSGIX *, glXChooseFBConfigSGIX,
1948 (Display * dpy, int screen, int *attrib_list,
1949 int *nelements), (dpy, screen, attrib_list, nelements),
1952 _GLX_PUBLIC GLX_ALIAS(XVisualInfo *, glXGetVisualFromFBConfigSGIX,
1953 (Display * dpy, GLXFBConfigSGIX config),
1954 (dpy, config), glXGetVisualFromFBConfig)
1956 _GLX_PUBLIC GLXPixmap
1957 glXCreateGLXPixmapWithConfigSGIX(Display * dpy,
1958 GLXFBConfigSGIX fbconfig,
1961 #ifndef GLX_USE_APPLEGL
1962 xGLXVendorPrivateWithReplyReq *vpreq;
1963 xGLXCreateGLXPixmapWithConfigSGIXReq *req;
1964 GLXPixmap xid = None;
1966 struct glx_screen *psc;
1968 struct glx_config *config = (struct glx_config *) fbconfig;
1971 if ((dpy == NULL) || (config == NULL)) {
1974 #ifdef GLX_USE_APPLEGL
1975 if(apple_glx_pixmap_create(dpy, config->screen, pixmap, config))
1980 psc = GetGLXScreenConfigs(dpy, config->screen);
1982 && __glXExtensionBitIsEnabled(psc, SGIX_fbconfig_bit)) {
1983 opcode = __glXSetupForCommand(dpy);
1988 /* Send the glXCreateGLXPixmapWithConfigSGIX request */
1990 GetReqExtra(GLXVendorPrivateWithReply,
1991 sz_xGLXCreateGLXPixmapWithConfigSGIXReq -
1992 sz_xGLXVendorPrivateWithReplyReq, vpreq);
1993 req = (xGLXCreateGLXPixmapWithConfigSGIXReq *) vpreq;
1994 req->reqType = opcode;
1995 req->glxCode = X_GLXVendorPrivateWithReply;
1996 req->vendorCode = X_GLXvop_CreateGLXPixmapWithConfigSGIX;
1997 req->screen = config->screen;
1998 req->fbconfig = config->fbconfigID;
1999 req->pixmap = pixmap;
2000 req->glxpixmap = xid = XAllocID(dpy);
2009 _GLX_PUBLIC GLXContext
2010 glXCreateContextWithConfigSGIX(Display * dpy,
2011 GLXFBConfigSGIX fbconfig, int renderType,
2012 GLXContext shareList, Bool allowDirect)
2014 GLXContext gc = NULL;
2015 struct glx_config *config = (struct glx_config *) fbconfig;
2016 struct glx_screen *psc;
2019 if ((dpy == NULL) || (config == NULL)) {
2023 psc = GetGLXScreenConfigs(dpy, config->screen);
2025 && __glXExtensionBitIsEnabled(psc, SGIX_fbconfig_bit)) {
2026 gc = CreateContext(dpy, config->fbconfigID, config, shareList,
2028 X_GLXvop_CreateContextWithConfigSGIX, renderType,
2036 _GLX_PUBLIC GLXFBConfigSGIX
2037 glXGetFBConfigFromVisualSGIX(Display * dpy, XVisualInfo * vis)
2039 struct glx_display *priv;
2040 struct glx_screen *psc = NULL;
2042 if ((GetGLXPrivScreenConfig(dpy, vis->screen, &priv, &psc) == Success)
2043 && __glXExtensionBitIsEnabled(psc, SGIX_fbconfig_bit)
2044 && (psc->configs->fbconfigID != (int) GLX_DONT_CARE)) {
2045 return (GLXFBConfigSGIX) glx_config_find_visual(psc->configs,
2052 #ifndef GLX_USE_APPLEGL
2054 ** GLX_SGIX_swap_group
2057 __glXJoinSwapGroupSGIX(Display * dpy, GLXDrawable drawable,
2067 ** GLX_SGIX_swap_barrier
2070 __glXBindSwapBarrierSGIX(Display * dpy, GLXDrawable drawable, int barrier)
2078 __glXQueryMaxSwapBarriersSGIX(Display * dpy, int screen, int *max)
2088 ** GLX_OML_sync_control
2091 __glXGetSyncValuesOML(Display * dpy, GLXDrawable drawable,
2092 int64_t * ust, int64_t * msc, int64_t * sbc)
2094 struct glx_display * const priv = __glXInitialize(dpy);
2096 #ifdef GLX_DIRECT_RENDERING
2097 __GLXDRIdrawable *pdraw;
2099 struct glx_screen *psc;
2104 #ifdef GLX_DIRECT_RENDERING
2105 pdraw = GetGLXDRIDrawable(dpy, drawable);
2106 psc = pdraw ? pdraw->psc : NULL;
2107 if (pdraw && psc->driScreen->getDrawableMSC) {
2108 ret = psc->driScreen->getDrawableMSC(psc, pdraw, ust, msc, sbc);
2116 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
2118 __glxGetMscRate(struct glx_screen *psc,
2119 int32_t * numerator, int32_t * denominator)
2122 XF86VidModeModeLine mode_line;
2126 if (XF86VidModeQueryVersion(psc->dpy, &i, &i) &&
2127 XF86VidModeGetModeLine(psc->dpy, psc->scr, &dot_clock, &mode_line)) {
2128 unsigned n = dot_clock * 1000;
2129 unsigned d = mode_line.vtotal * mode_line.htotal;
2131 # define V_INTERLACE 0x010
2132 # define V_DBLSCAN 0x020
2134 if (mode_line.flags & V_INTERLACE)
2136 else if (mode_line.flags & V_DBLSCAN)
2139 /* The OML_sync_control spec requires that if the refresh rate is a
2140 * whole number, that the returned numerator be equal to the refresh
2141 * rate and the denominator be 1.
2149 static const unsigned f[] = { 13, 11, 7, 5, 3, 2, 0 };
2151 /* This is a poor man's way to reduce a fraction. It's far from
2152 * perfect, but it will work well enough for this situation.
2155 for (i = 0; f[i] != 0; i++) {
2156 while (n % f[i] == 0 && d % f[i] == 0) {
2176 * Determine the refresh rate of the specified drawable and display.
2178 * \param dpy Display whose refresh rate is to be determined.
2179 * \param drawable Drawable whose refresh rate is to be determined.
2180 * \param numerator Numerator of the refresh rate.
2181 * \param demoninator Denominator of the refresh rate.
2182 * \return If the refresh rate for the specified display and drawable could
2183 * be calculated, True is returned. Otherwise False is returned.
2185 * \note This function is implemented entirely client-side. A lot of other
2186 * functionality is required to export GLX_OML_sync_control, so on
2187 * XFree86 this function can be called for direct-rendering contexts
2188 * when GLX_OML_sync_control appears in the client extension string.
2192 __glXGetMscRateOML(Display * dpy, GLXDrawable drawable,
2193 int32_t * numerator, int32_t * denominator)
2195 #if defined( GLX_DIRECT_RENDERING ) && defined( XF86VIDMODE )
2196 __GLXDRIdrawable *draw = GetGLXDRIDrawable(dpy, drawable);
2201 return __glxGetMscRate(draw->psc, numerator, denominator);
2213 __glXSwapBuffersMscOML(Display * dpy, GLXDrawable drawable,
2214 int64_t target_msc, int64_t divisor, int64_t remainder)
2216 struct glx_context *gc = __glXGetCurrentContext();
2217 #ifdef GLX_DIRECT_RENDERING
2218 __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable);
2219 struct glx_screen *psc = pdraw ? pdraw->psc : NULL;
2222 if (gc == &dummyContext) /* no GLX for this */
2225 #ifdef GLX_DIRECT_RENDERING
2226 if (!pdraw || !gc->isDirect)
2230 /* The OML_sync_control spec says these should "generate a GLX_BAD_VALUE
2231 * error", but it also says "It [glXSwapBuffersMscOML] will return a value
2232 * of -1 if the function failed because of errors detected in the input
2235 if (divisor < 0 || remainder < 0 || target_msc < 0)
2237 if (divisor > 0 && remainder >= divisor)
2240 if (target_msc == 0 && divisor == 0 && remainder == 0)
2243 #ifdef GLX_DIRECT_RENDERING
2244 if (psc->driScreen && psc->driScreen->swapBuffers)
2245 return (*psc->driScreen->swapBuffers)(pdraw, target_msc, divisor,
2254 __glXWaitForMscOML(Display * dpy, GLXDrawable drawable,
2255 int64_t target_msc, int64_t divisor,
2256 int64_t remainder, int64_t * ust,
2257 int64_t * msc, int64_t * sbc)
2259 #ifdef GLX_DIRECT_RENDERING
2260 __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable);
2261 struct glx_screen *psc = pdraw ? pdraw->psc : NULL;
2266 /* The OML_sync_control spec says these should "generate a GLX_BAD_VALUE
2267 * error", but the return type in the spec is Bool.
2269 if (divisor < 0 || remainder < 0 || target_msc < 0)
2271 if (divisor > 0 && remainder >= divisor)
2274 #ifdef GLX_DIRECT_RENDERING
2275 if (pdraw && psc->driScreen && psc->driScreen->waitForMSC) {
2276 ret = psc->driScreen->waitForMSC(pdraw, target_msc, divisor, remainder,
2287 __glXWaitForSbcOML(Display * dpy, GLXDrawable drawable,
2288 int64_t target_sbc, int64_t * ust,
2289 int64_t * msc, int64_t * sbc)
2291 #ifdef GLX_DIRECT_RENDERING
2292 __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable);
2293 struct glx_screen *psc = pdraw ? pdraw->psc : NULL;
2297 /* The OML_sync_control spec says this should "generate a GLX_BAD_VALUE
2298 * error", but the return type in the spec is Bool.
2303 #ifdef GLX_DIRECT_RENDERING
2304 if (pdraw && psc->driScreen && psc->driScreen->waitForSBC) {
2305 ret = psc->driScreen->waitForSBC(pdraw, target_sbc, ust, msc, sbc);
2317 * Mesa extension stubs. These will help reduce portability problems.
2322 * Release all buffers associated with the specified GLX drawable.
2325 * This function was intended for stand-alone Mesa. The issue there is that
2326 * the library doesn't get any notification when a window is closed. In
2327 * DRI there is a similar but slightly different issue. When GLX 1.3 is
2328 * supported, there are 3 different functions to destroy a drawable. It
2329 * should be possible to create GLX protocol (or have it determine which
2330 * protocol to use based on the type of the drawable) to have one function
2331 * do the work of 3. For the direct-rendering case, this function could
2332 * just call the driver's \c __DRIdrawableRec::destroyDrawable function.
2333 * This would reduce the frequency with which \c __driGarbageCollectDrawables
2334 * would need to be used. This really should be done as part of the new DRI
2337 * \sa http://oss.sgi.com/projects/ogl-sample/registry/MESA/release_buffers.txt
2338 * __driGarbageCollectDrawables
2339 * glXDestroyGLXPixmap
2340 * glXDestroyPbuffer glXDestroyPixmap glXDestroyWindow
2341 * glXDestroyGLXPbufferSGIX glXDestroyGLXVideoSourceSGIX
2344 __glXReleaseBuffersMESA(Display * dpy, GLXDrawable d)
2352 _GLX_PUBLIC GLXPixmap
2353 glXCreateGLXPixmapMESA(Display * dpy, XVisualInfo * visual,
2354 Pixmap pixmap, Colormap cmap)
2367 * GLX_MESA_copy_sub_buffer
2369 #define X_GLXvop_CopySubBufferMESA 5154 /* temporary */
2371 __glXCopySubBufferMESA(Display * dpy, GLXDrawable drawable,
2372 int x, int y, int width, int height)
2374 xGLXVendorPrivateReq *req;
2375 struct glx_context *gc;
2377 CARD32 *drawable_ptr;
2378 INT32 *x_ptr, *y_ptr, *w_ptr, *h_ptr;
2381 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
2382 __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable);
2383 if (pdraw != NULL) {
2384 struct glx_screen *psc = pdraw->psc;
2385 if (psc->driScreen->copySubBuffer != NULL) {
2386 (*psc->driScreen->copySubBuffer) (pdraw, x, y, width, height, True);
2393 opcode = __glXSetupForCommand(dpy);
2398 ** The calling thread may or may not have a current context. If it
2399 ** does, send the context tag so the server can do a flush.
2401 gc = __glXGetCurrentContext();
2402 if ((gc != &dummyContext) && (dpy == gc->currentDpy) &&
2403 ((drawable == gc->currentDrawable) ||
2404 (drawable == gc->currentReadable))) {
2405 tag = gc->currentContextTag;
2412 GetReqExtra(GLXVendorPrivate, sizeof(CARD32) + sizeof(INT32) * 4, req);
2413 req->reqType = opcode;
2414 req->glxCode = X_GLXVendorPrivate;
2415 req->vendorCode = X_GLXvop_CopySubBufferMESA;
2416 req->contextTag = tag;
2418 drawable_ptr = (CARD32 *) (req + 1);
2419 x_ptr = (INT32 *) (drawable_ptr + 1);
2420 y_ptr = (INT32 *) (drawable_ptr + 2);
2421 w_ptr = (INT32 *) (drawable_ptr + 3);
2422 h_ptr = (INT32 *) (drawable_ptr + 4);
2424 *drawable_ptr = drawable;
2436 __glXBindTexImageEXT(Display * dpy,
2437 GLXDrawable drawable, int buffer, const int *attrib_list)
2439 struct glx_context *gc = __glXGetCurrentContext();
2441 if (gc == &dummyContext || gc->vtable->bind_tex_image == NULL)
2444 gc->vtable->bind_tex_image(dpy, drawable, buffer, attrib_list);
2448 __glXReleaseTexImageEXT(Display * dpy, GLXDrawable drawable, int buffer)
2450 struct glx_context *gc = __glXGetCurrentContext();
2452 if (gc == &dummyContext || gc->vtable->release_tex_image == NULL)
2455 gc->vtable->release_tex_image(dpy, drawable, buffer);
2460 #endif /* GLX_USE_APPLEGL */
2463 ** glXGetProcAddress support
2466 struct name_address_pair
2472 #define GLX_FUNCTION(f) { # f, (GLvoid *) f }
2473 #define GLX_FUNCTION2(n,f) { # n, (GLvoid *) f }
2475 static const struct name_address_pair GLX_functions[] = {
2476 /*** GLX_VERSION_1_0 ***/
2477 GLX_FUNCTION(glXChooseVisual),
2478 GLX_FUNCTION(glXCopyContext),
2479 GLX_FUNCTION(glXCreateContext),
2480 GLX_FUNCTION(glXCreateGLXPixmap),
2481 GLX_FUNCTION(glXDestroyContext),
2482 GLX_FUNCTION(glXDestroyGLXPixmap),
2483 GLX_FUNCTION(glXGetConfig),
2484 GLX_FUNCTION(glXGetCurrentContext),
2485 GLX_FUNCTION(glXGetCurrentDrawable),
2486 GLX_FUNCTION(glXIsDirect),
2487 GLX_FUNCTION(glXMakeCurrent),
2488 GLX_FUNCTION(glXQueryExtension),
2489 GLX_FUNCTION(glXQueryVersion),
2490 GLX_FUNCTION(glXSwapBuffers),
2491 GLX_FUNCTION(glXUseXFont),
2492 GLX_FUNCTION(glXWaitGL),
2493 GLX_FUNCTION(glXWaitX),
2495 /*** GLX_VERSION_1_1 ***/
2496 GLX_FUNCTION(glXGetClientString),
2497 GLX_FUNCTION(glXQueryExtensionsString),
2498 GLX_FUNCTION(glXQueryServerString),
2500 /*** GLX_VERSION_1_2 ***/
2501 GLX_FUNCTION(glXGetCurrentDisplay),
2503 /*** GLX_VERSION_1_3 ***/
2504 GLX_FUNCTION(glXChooseFBConfig),
2505 GLX_FUNCTION(glXCreateNewContext),
2506 GLX_FUNCTION(glXCreatePbuffer),
2507 GLX_FUNCTION(glXCreatePixmap),
2508 GLX_FUNCTION(glXCreateWindow),
2509 GLX_FUNCTION(glXDestroyPbuffer),
2510 GLX_FUNCTION(glXDestroyPixmap),
2511 GLX_FUNCTION(glXDestroyWindow),
2512 GLX_FUNCTION(glXGetCurrentReadDrawable),
2513 GLX_FUNCTION(glXGetFBConfigAttrib),
2514 GLX_FUNCTION(glXGetFBConfigs),
2515 GLX_FUNCTION(glXGetSelectedEvent),
2516 GLX_FUNCTION(glXGetVisualFromFBConfig),
2517 GLX_FUNCTION(glXMakeContextCurrent),
2518 GLX_FUNCTION(glXQueryContext),
2519 GLX_FUNCTION(glXQueryDrawable),
2520 GLX_FUNCTION(glXSelectEvent),
2522 #ifndef GLX_USE_APPLEGL
2523 /*** GLX_SGI_swap_control ***/
2524 GLX_FUNCTION2(glXSwapIntervalSGI, __glXSwapIntervalSGI),
2526 /*** GLX_SGI_video_sync ***/
2527 GLX_FUNCTION2(glXGetVideoSyncSGI, __glXGetVideoSyncSGI),
2528 GLX_FUNCTION2(glXWaitVideoSyncSGI, __glXWaitVideoSyncSGI),
2530 /*** GLX_SGI_make_current_read ***/
2531 GLX_FUNCTION2(glXMakeCurrentReadSGI, glXMakeContextCurrent),
2532 GLX_FUNCTION2(glXGetCurrentReadDrawableSGI, glXGetCurrentReadDrawable),
2534 /*** GLX_EXT_import_context ***/
2535 GLX_FUNCTION(glXFreeContextEXT),
2536 GLX_FUNCTION(glXGetContextIDEXT),
2537 GLX_FUNCTION2(glXGetCurrentDisplayEXT, glXGetCurrentDisplay),
2538 GLX_FUNCTION(glXImportContextEXT),
2539 GLX_FUNCTION2(glXQueryContextInfoEXT, glXQueryContext),
2542 /*** GLX_SGIX_fbconfig ***/
2543 GLX_FUNCTION2(glXGetFBConfigAttribSGIX, glXGetFBConfigAttrib),
2544 GLX_FUNCTION2(glXChooseFBConfigSGIX, glXChooseFBConfig),
2545 GLX_FUNCTION(glXCreateGLXPixmapWithConfigSGIX),
2546 GLX_FUNCTION(glXCreateContextWithConfigSGIX),
2547 GLX_FUNCTION2(glXGetVisualFromFBConfigSGIX, glXGetVisualFromFBConfig),
2548 GLX_FUNCTION(glXGetFBConfigFromVisualSGIX),
2550 #ifndef GLX_USE_APPLEGL
2551 /*** GLX_SGIX_pbuffer ***/
2552 GLX_FUNCTION(glXCreateGLXPbufferSGIX),
2553 GLX_FUNCTION(glXDestroyGLXPbufferSGIX),
2554 GLX_FUNCTION(glXQueryGLXPbufferSGIX),
2555 GLX_FUNCTION(glXSelectEventSGIX),
2556 GLX_FUNCTION(glXGetSelectedEventSGIX),
2558 /*** GLX_SGIX_swap_group ***/
2559 GLX_FUNCTION2(glXJoinSwapGroupSGIX, __glXJoinSwapGroupSGIX),
2561 /*** GLX_SGIX_swap_barrier ***/
2562 GLX_FUNCTION2(glXBindSwapBarrierSGIX, __glXBindSwapBarrierSGIX),
2563 GLX_FUNCTION2(glXQueryMaxSwapBarriersSGIX, __glXQueryMaxSwapBarriersSGIX),
2565 /*** GLX_MESA_copy_sub_buffer ***/
2566 GLX_FUNCTION2(glXCopySubBufferMESA, __glXCopySubBufferMESA),
2568 /*** GLX_MESA_pixmap_colormap ***/
2569 GLX_FUNCTION(glXCreateGLXPixmapMESA),
2571 /*** GLX_MESA_release_buffers ***/
2572 GLX_FUNCTION2(glXReleaseBuffersMESA, __glXReleaseBuffersMESA),
2574 /*** GLX_MESA_swap_control ***/
2575 GLX_FUNCTION2(glXSwapIntervalMESA, __glXSwapIntervalMESA),
2576 GLX_FUNCTION2(glXGetSwapIntervalMESA, __glXGetSwapIntervalMESA),
2579 /*** GLX_ARB_get_proc_address ***/
2580 GLX_FUNCTION(glXGetProcAddressARB),
2583 GLX_FUNCTION2(glXGetProcAddress, glXGetProcAddressARB),
2585 #ifndef GLX_USE_APPLEGL
2586 /*** GLX_OML_sync_control ***/
2587 GLX_FUNCTION2(glXWaitForSbcOML, __glXWaitForSbcOML),
2588 GLX_FUNCTION2(glXWaitForMscOML, __glXWaitForMscOML),
2589 GLX_FUNCTION2(glXSwapBuffersMscOML, __glXSwapBuffersMscOML),
2590 GLX_FUNCTION2(glXGetMscRateOML, __glXGetMscRateOML),
2591 GLX_FUNCTION2(glXGetSyncValuesOML, __glXGetSyncValuesOML),
2593 /*** GLX_EXT_texture_from_pixmap ***/
2594 GLX_FUNCTION2(glXBindTexImageEXT, __glXBindTexImageEXT),
2595 GLX_FUNCTION2(glXReleaseTexImageEXT, __glXReleaseTexImageEXT),
2598 #if defined(GLX_DIRECT_RENDERING) && defined(GLX_USE_DRM)
2599 /*** DRI configuration ***/
2600 GLX_FUNCTION(glXGetScreenDriver),
2601 GLX_FUNCTION(glXGetDriverConfig),
2604 /*** GLX_ARB_create_context and GLX_ARB_create_context_profile ***/
2605 GLX_FUNCTION(glXCreateContextAttribsARB),
2607 /*** GLX_MESA_query_renderer ***/
2608 GLX_FUNCTION(glXQueryRendererIntegerMESA),
2609 GLX_FUNCTION(glXQueryRendererStringMESA),
2610 GLX_FUNCTION(glXQueryCurrentRendererIntegerMESA),
2611 GLX_FUNCTION(glXQueryCurrentRendererStringMESA),
2613 {NULL, NULL} /* end of list */
2616 static const GLvoid *
2617 get_glx_proc_address(const char *funcName)
2621 /* try static functions */
2622 for (i = 0; GLX_functions[i].Name; i++) {
2623 if (strcmp(GLX_functions[i].Name, funcName) == 0)
2624 return GLX_functions[i].Address;
2631 * Get the address of a named GL function. This is the pre-GLX 1.4 name for
2632 * \c glXGetProcAddress.
2634 * \param procName Name of a GL or GLX function.
2635 * \returns A pointer to the named function
2637 * \sa glXGetProcAddress
2639 _GLX_PUBLIC void (*glXGetProcAddressARB(const GLubyte * procName)) (void)
2641 typedef void (*gl_function) (void);
2645 /* Search the table of GLX and internal functions first. If that
2646 * fails and the supplied name could be a valid core GL name, try
2647 * searching the core GL function table. This check is done to prevent
2648 * DRI based drivers from searching the core GL function table for
2649 * internal API functions.
2651 f = (gl_function) get_glx_proc_address((const char *) procName);
2652 if ((f == NULL) && (procName[0] == 'g') && (procName[1] == 'l')
2653 && (procName[2] != 'X')) {
2654 #ifdef GLX_SHARED_GLAPI
2655 f = (gl_function) __indirect_get_proc_address((const char *) procName);
2658 f = (gl_function) _glapi_get_proc_address((const char *) procName);
2660 struct glx_context *gc = __glXGetCurrentContext();
2662 if (gc != NULL && gc->vtable->get_proc_address != NULL)
2663 f = gc->vtable->get_proc_address((const char *) procName);
2670 * Get the address of a named GL function. This is the GLX 1.4 name for
2671 * \c glXGetProcAddressARB.
2673 * \param procName Name of a GL or GLX function.
2674 * \returns A pointer to the named function
2676 * \sa glXGetProcAddressARB
2679 GLX_ALIAS(__GLXextFuncPtr, glXGetProcAddress,
2680 (const GLubyte * procName),
2681 (procName), glXGetProcAddressARB)
2683 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
2685 * Get the unadjusted system time (UST). Currently, the UST is measured in
2686 * microseconds since Epoc. The actual resolution of the UST may vary from
2687 * system to system, and the units may vary from release to release.
2688 * Drivers should not call this function directly. They should instead use
2689 * \c glXGetProcAddress to obtain a pointer to the function.
2691 * \param ust Location to store the 64-bit UST
2692 * \returns Zero on success or a negative errno value on failure.
2694 * \sa glXGetProcAddress, PFNGLXGETUSTPROC
2696 * \since Internal API version 20030317.
2699 __glXGetUST(int64_t * ust)
2707 if (gettimeofday(&tv, NULL) == 0) {
2708 ust[0] = (tv.tv_sec * 1000000) + tv.tv_usec;
2715 #endif /* GLX_DIRECT_RENDERING */
2717 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
2720 MesaGLInteropGLXQueryDeviceInfo(Display *dpy, GLXContext context,
2721 struct mesa_glinterop_device_info *out)
2723 struct glx_context *gc = (struct glx_context*)context;
2728 if (!gc || gc->xid == None || !gc->isDirect) {
2730 return MESA_GLINTEROP_INVALID_CONTEXT;
2733 if (!gc->vtable->interop_query_device_info) {
2735 return MESA_GLINTEROP_UNSUPPORTED;
2738 ret = gc->vtable->interop_query_device_info(gc, out);
2744 MesaGLInteropGLXExportObject(Display *dpy, GLXContext context,
2745 struct mesa_glinterop_export_in *in,
2746 struct mesa_glinterop_export_out *out)
2748 struct glx_context *gc = (struct glx_context*)context;
2753 if (!gc || gc->xid == None || !gc->isDirect) {
2755 return MESA_GLINTEROP_INVALID_CONTEXT;
2758 if (!gc->vtable->interop_export_object) {
2760 return MESA_GLINTEROP_UNSUPPORTED;
2763 ret = gc->vtable->interop_export_object(gc, in, out);
2768 #endif /* defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) */