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
;
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
&& 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
&& 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
&& 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
);
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
&& 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
&& 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
!= NULL
) && (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 glXChooseVisual, \c glXChooseFBConfig,
1166 * and \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 can either take
1175 * the form expected by \c glXChooseVisual (where boolean
1176 * tags do not have a value) or by \c glXChooseFBConfig
1177 * (where every tag has a value).
1178 * \param fbconfig_style_tags Selects whether \c attribList is in
1179 * \c glXChooseVisual style or
1180 * \c glXChooseFBConfig style.
1181 * \returns The number of valid elements left in \c configs.
1183 * \sa glXChooseVisual, glXChooseFBConfig, glXChooseFBConfigSGIX
1186 choose_visual(struct glx_config
** configs
, int num_configs
,
1187 const int *attribList
, GLboolean fbconfig_style_tags
)
1189 struct glx_config test_config
;
1193 /* This is a fairly direct implementation of the selection method
1194 * described by GLX_SGIX_fbconfig. Start by culling out all the
1195 * configs that are not compatible with the selected parameter
1199 init_fbconfig_for_chooser(&test_config
, fbconfig_style_tags
);
1200 __glXInitializeVisualConfigFromTags(&test_config
, 512,
1201 (const INT32
*) attribList
,
1202 GL_TRUE
, fbconfig_style_tags
);
1205 for (i
= 0; i
< num_configs
; i
++) {
1206 if (fbconfigs_compatible(&test_config
, configs
[i
])) {
1207 configs
[base
] = configs
[i
];
1216 if (base
< num_configs
) {
1217 (void) memset(&configs
[base
], 0, sizeof(void *) * (num_configs
- base
));
1220 /* After the incompatible configs are removed, the resulting
1221 * list is sorted according to the rules set out in the various
1225 qsort(configs
, base
, sizeof(struct glx_config
*),
1226 (int (*)(const void *, const void *)) fbconfig_compare
);
1234 ** Return the visual that best matches the template. Return None if no
1235 ** visual matches the template.
1237 _X_EXPORT XVisualInfo
*
1238 glXChooseVisual(Display
* dpy
, int screen
, int *attribList
)
1240 XVisualInfo
*visualList
= NULL
;
1241 struct glx_display
*priv
;
1242 struct glx_screen
*psc
;
1243 struct glx_config test_config
;
1244 struct glx_config
*config
;
1245 struct glx_config
*best_config
= NULL
;
1248 ** Get a list of all visuals, return if list is empty
1250 if (GetGLXPrivScreenConfig(dpy
, screen
, &priv
, &psc
) != Success
) {
1256 ** Build a template from the defaults and the attribute list
1257 ** Free visual list and return if an unexpected token is encountered
1259 init_fbconfig_for_chooser(&test_config
, GL_FALSE
);
1260 __glXInitializeVisualConfigFromTags(&test_config
, 512,
1261 (const INT32
*) attribList
,
1265 ** Eliminate visuals that don't meet minimum requirements
1266 ** Compute a score for those that do
1267 ** Remember which visual, if any, got the highest score
1268 ** If no visual is acceptable, return None
1269 ** Otherwise, create an XVisualInfo list with just the selected X visual
1272 for (config
= psc
->visuals
; config
!= NULL
; config
= config
->next
) {
1273 if (fbconfigs_compatible(&test_config
, config
)
1274 && ((best_config
== NULL
) ||
1275 (fbconfig_compare (&config
, &best_config
) < 0))) {
1276 XVisualInfo visualTemplate
;
1277 XVisualInfo
*newList
;
1280 visualTemplate
.screen
= screen
;
1281 visualTemplate
.visualid
= config
->visualID
;
1282 newList
= XGetVisualInfo(dpy
, VisualScreenMask
| VisualIDMask
,
1283 &visualTemplate
, &i
);
1287 visualList
= newList
;
1288 best_config
= config
;
1293 #ifdef GLX_USE_APPLEGL
1294 if(visualList
&& getenv("LIBGL_DUMP_VISUALID")) {
1295 printf("visualid 0x%lx\n", visualList
[0].visualid
);
1303 _X_EXPORT
const char *
1304 glXQueryExtensionsString(Display
* dpy
, int screen
)
1306 struct glx_screen
*psc
;
1307 struct glx_display
*priv
;
1309 if (GetGLXPrivScreenConfig(dpy
, screen
, &priv
, &psc
) != Success
) {
1313 if (!psc
->effectiveGLXexts
) {
1314 if (!psc
->serverGLXexts
) {
1315 psc
->serverGLXexts
=
1316 __glXQueryServerString(dpy
, priv
->majorOpcode
, screen
,
1320 __glXCalculateUsableExtensions(psc
,
1321 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
1322 (psc
->driScreen
!= NULL
),
1326 priv
->minorVersion
);
1329 return psc
->effectiveGLXexts
;
1332 _X_EXPORT
const char *
1333 glXGetClientString(Display
* dpy
, int name
)
1339 return (__glXGLXClientVendorName
);
1341 return (__glXGLXClientVersion
);
1342 case GLX_EXTENSIONS
:
1343 return (__glXGetClientExtensions());
1349 _X_EXPORT
const char *
1350 glXQueryServerString(Display
* dpy
, int screen
, int name
)
1352 struct glx_screen
*psc
;
1353 struct glx_display
*priv
;
1357 if (GetGLXPrivScreenConfig(dpy
, screen
, &priv
, &psc
) != Success
) {
1363 str
= &priv
->serverGLXvendor
;
1366 str
= &priv
->serverGLXversion
;
1368 case GLX_EXTENSIONS
:
1369 str
= &psc
->serverGLXexts
;
1376 *str
= __glXQueryServerString(dpy
, priv
->majorOpcode
, screen
, name
);
1384 ** EXT_import_context
1388 glXGetCurrentDisplay(void)
1390 struct glx_context
*gc
= __glXGetCurrentContext();
1393 return gc
->currentDpy
;
1397 GLX_ALIAS(Display
*, glXGetCurrentDisplayEXT
, (void), (),
1398 glXGetCurrentDisplay
)
1400 #ifndef GLX_USE_APPLEGL
1401 _X_EXPORT GLXContext
1402 glXImportContextEXT(Display
*dpy
, GLXContextID contextID
)
1404 struct glx_display
*priv
= __glXInitialize(dpy
);
1405 struct glx_screen
*psc
= NULL
;
1406 xGLXQueryContextReply reply
;
1408 struct glx_context
*ctx
;
1410 /* This GLX implementation knows about 5 different properties, so
1411 * allow the server to send us one of each.
1413 int propList
[5 * 2], *pProp
, nPropListBytes
;
1417 struct glx_config
*mode
;
1418 uint32_t fbconfigID
= 0;
1419 uint32_t visualID
= 0;
1420 uint32_t screen
= 0;
1421 Bool got_screen
= False
;
1426 /* The GLX_EXT_import_context spec says:
1428 * "If <contextID> does not refer to a valid context, then a BadContext
1429 * error is generated; if <contextID> refers to direct rendering
1430 * context then no error is generated but glXImportContextEXT returns
1433 * If contextID is None, generate BadContext on the client-side. Other
1434 * sorts of invalid contexts will be detected by the server in the
1435 * __glXIsDirect call.
1437 if (contextID
== None
) {
1438 __glXSendError(dpy
, GLXBadContext
, contextID
, X_GLXIsDirect
, false);
1442 if (__glXIsDirect(dpy
, contextID
))
1445 opcode
= __glXSetupForCommand(dpy
);
1449 /* Send the glXQueryContextInfoEXT request */
1452 if (priv
->majorVersion
> 1 || priv
->minorVersion
>= 3) {
1453 xGLXQueryContextReq
*req
;
1455 GetReq(GLXQueryContext
, req
);
1457 req
->reqType
= opcode
;
1458 req
->glxCode
= X_GLXQueryContext
;
1459 req
->context
= contextID
;
1462 xGLXVendorPrivateReq
*vpreq
;
1463 xGLXQueryContextInfoEXTReq
*req
;
1465 GetReqExtra(GLXVendorPrivate
,
1466 sz_xGLXQueryContextInfoEXTReq
- sz_xGLXVendorPrivateReq
,
1468 req
= (xGLXQueryContextInfoEXTReq
*) vpreq
;
1469 req
->reqType
= opcode
;
1470 req
->glxCode
= X_GLXVendorPrivateWithReply
;
1471 req
->vendorCode
= X_GLXvop_QueryContextInfoEXT
;
1472 req
->context
= contextID
;
1475 _XReply(dpy
, (xReply
*) & reply
, 0, False
);
1477 if (reply
.n
<= __GLX_MAX_CONTEXT_PROPS
)
1478 nPropListBytes
= reply
.n
* 2 * sizeof propList
[0];
1481 _XRead(dpy
, (char *) propList
, nPropListBytes
);
1485 numProps
= nPropListBytes
/ (2 * sizeof(propList
[0]));
1488 renderType
= GLX_RGBA_TYPE
; /* By default, assume RGBA context */
1491 for (i
= 0, pProp
= propList
; i
< numProps
; i
++, pProp
+= 2)
1497 case GLX_SHARE_CONTEXT_EXT
:
1500 case GLX_VISUAL_ID_EXT
:
1501 visualID
= pProp
[1];
1503 case GLX_FBCONFIG_ID
:
1504 fbconfigID
= pProp
[1];
1506 case GLX_RENDER_TYPE
:
1507 renderType
= pProp
[1];
1514 psc
= GetGLXScreenConfigs(dpy
, screen
);
1518 if (fbconfigID
!= 0) {
1519 mode
= glx_config_find_fbconfig(psc
->configs
, fbconfigID
);
1520 } else if (visualID
!= 0) {
1521 mode
= glx_config_find_visual(psc
->visuals
, visualID
);
1527 ctx
= indirect_create_context(psc
, mode
, NULL
, renderType
);
1531 ctx
->xid
= contextID
;
1532 ctx
->imported
= GL_TRUE
;
1533 ctx
->share_xid
= share
;
1535 return (GLXContext
) ctx
;
1541 glXQueryContext(Display
* dpy
, GLXContext ctx_user
, int attribute
, int *value
)
1543 struct glx_context
*ctx
= (struct glx_context
*) ctx_user
;
1545 switch (attribute
) {
1546 case GLX_SHARE_CONTEXT_EXT
:
1547 *value
= ctx
->share_xid
;
1549 case GLX_VISUAL_ID_EXT
:
1550 *value
= ctx
->config
? ctx
->config
->visualID
: None
;
1553 *value
= ctx
->screen
;
1555 case GLX_FBCONFIG_ID
:
1556 *value
= ctx
->config
? ctx
->config
->fbconfigID
: None
;
1558 case GLX_RENDER_TYPE
:
1559 *value
= ctx
->renderType
;
1562 return GLX_BAD_ATTRIBUTE
;
1568 GLX_ALIAS(int, glXQueryContextInfoEXT
,
1569 (Display
* dpy
, GLXContext ctx
, int attribute
, int *value
),
1570 (dpy
, ctx
, attribute
, value
), glXQueryContext
)
1572 _X_EXPORT GLXContextID
glXGetContextIDEXT(const GLXContext ctx_user
)
1574 struct glx_context
*ctx
= (struct glx_context
*) ctx_user
;
1576 return (ctx
== NULL
) ? None
: ctx
->xid
;
1580 glXFreeContextEXT(Display
*dpy
, GLXContext ctx
)
1582 struct glx_context
*gc
= (struct glx_context
*) ctx
;
1584 if (gc
== NULL
|| gc
->xid
== None
)
1587 /* The GLX_EXT_import_context spec says:
1589 * "glXFreeContext does not free the server-side context information or
1590 * the XID associated with the server-side context."
1592 * Don't send any protocol. Just destroy the client-side tracking of the
1593 * context. Also, only release the context structure if it's not current.
1596 if (gc
->currentDpy
) {
1599 gc
->vtable
->destroy(gc
);
1604 _X_EXPORT GLXFBConfig
*
1605 glXChooseFBConfig(Display
* dpy
, int screen
,
1606 const int *attribList
, int *nitems
)
1608 struct glx_config
**config_list
;
1612 config_list
= (struct glx_config
**)
1613 glXGetFBConfigs(dpy
, screen
, &list_size
);
1615 if ((config_list
!= NULL
) && (list_size
> 0) && (attribList
!= NULL
)) {
1616 list_size
= choose_visual(config_list
, list_size
, attribList
, GL_TRUE
);
1617 if (list_size
== 0) {
1623 *nitems
= list_size
;
1624 return (GLXFBConfig
*) config_list
;
1628 _X_EXPORT GLXContext
1629 glXCreateNewContext(Display
* dpy
, GLXFBConfig fbconfig
,
1630 int renderType
, GLXContext shareList
, Bool allowDirect
)
1632 struct glx_config
*config
= (struct glx_config
*) fbconfig
;
1634 return CreateContext(dpy
, config
->fbconfigID
, config
, shareList
,
1635 allowDirect
, X_GLXCreateNewContext
, renderType
,
1640 _X_EXPORT GLXDrawable
1641 glXGetCurrentReadDrawable(void)
1643 struct glx_context
*gc
= __glXGetCurrentContext();
1645 return gc
->currentReadable
;
1649 _X_EXPORT GLXFBConfig
*
1650 glXGetFBConfigs(Display
* dpy
, int screen
, int *nelements
)
1652 struct glx_display
*priv
= __glXInitialize(dpy
);
1653 struct glx_config
**config_list
= NULL
;
1654 struct glx_config
*config
;
1655 unsigned num_configs
= 0;
1659 if (priv
&& (priv
->screens
!= NULL
)
1660 && (screen
>= 0) && (screen
<= ScreenCount(dpy
))
1661 && (priv
->screens
[screen
]->configs
!= NULL
)
1662 && (priv
->screens
[screen
]->configs
->fbconfigID
1663 != (int) GLX_DONT_CARE
)) {
1665 for (config
= priv
->screens
[screen
]->configs
; config
!= NULL
;
1666 config
= config
->next
) {
1667 if (config
->fbconfigID
!= (int) GLX_DONT_CARE
) {
1672 config_list
= malloc(num_configs
* sizeof *config_list
);
1673 if (config_list
!= NULL
) {
1674 *nelements
= num_configs
;
1676 for (config
= priv
->screens
[screen
]->configs
; config
!= NULL
;
1677 config
= config
->next
) {
1678 if (config
->fbconfigID
!= (int) GLX_DONT_CARE
) {
1679 config_list
[i
] = config
;
1686 return (GLXFBConfig
*) config_list
;
1691 glXGetFBConfigAttrib(Display
* dpy
, GLXFBConfig fbconfig
,
1692 int attribute
, int *value
)
1694 struct glx_config
*config
= ValidateGLXFBConfig(dpy
, fbconfig
);
1697 return GLXBadFBConfig
;
1699 return glx_config_get(config
, attribute
, value
);
1703 _X_EXPORT XVisualInfo
*
1704 glXGetVisualFromFBConfig(Display
* dpy
, GLXFBConfig fbconfig
)
1706 XVisualInfo visualTemplate
;
1707 struct glx_config
*config
= (struct glx_config
*) fbconfig
;
1711 ** Get a list of all visuals, return if list is empty
1713 visualTemplate
.visualid
= config
->visualID
;
1714 return XGetVisualInfo(dpy
, VisualIDMask
, &visualTemplate
, &count
);
1717 #ifndef GLX_USE_APPLEGL
1719 ** GLX_SGI_swap_control
1722 __glXSwapIntervalSGI(int interval
)
1724 xGLXVendorPrivateReq
*req
;
1725 struct glx_context
*gc
= __glXGetCurrentContext();
1726 struct glx_screen
*psc
;
1728 CARD32
*interval_ptr
;
1732 return GLX_BAD_CONTEXT
;
1735 if (interval
<= 0) {
1736 return GLX_BAD_VALUE
;
1739 psc
= GetGLXScreenConfigs( gc
->currentDpy
, gc
->screen
);
1741 #ifdef GLX_DIRECT_RENDERING
1742 if (gc
->isDirect
&& psc
&& psc
->driScreen
&&
1743 psc
->driScreen
->setSwapInterval
) {
1744 __GLXDRIdrawable
*pdraw
=
1745 GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
);
1746 psc
->driScreen
->setSwapInterval(pdraw
, interval
);
1751 dpy
= gc
->currentDpy
;
1752 opcode
= __glXSetupForCommand(dpy
);
1757 /* Send the glXSwapIntervalSGI request */
1759 GetReqExtra(GLXVendorPrivate
, sizeof(CARD32
), req
);
1760 req
->reqType
= opcode
;
1761 req
->glxCode
= X_GLXVendorPrivate
;
1762 req
->vendorCode
= X_GLXvop_SwapIntervalSGI
;
1763 req
->contextTag
= gc
->currentContextTag
;
1765 interval_ptr
= (CARD32
*) (req
+ 1);
1766 *interval_ptr
= interval
;
1777 ** GLX_MESA_swap_control
1780 __glXSwapIntervalMESA(unsigned int interval
)
1782 #ifdef GLX_DIRECT_RENDERING
1783 struct glx_context
*gc
= __glXGetCurrentContext();
1785 if (gc
!= NULL
&& gc
->isDirect
) {
1786 struct glx_screen
*psc
;
1788 psc
= GetGLXScreenConfigs( gc
->currentDpy
, gc
->screen
);
1789 if (psc
&& psc
->driScreen
&& psc
->driScreen
->setSwapInterval
) {
1790 __GLXDRIdrawable
*pdraw
=
1791 GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
);
1792 return psc
->driScreen
->setSwapInterval(pdraw
, interval
);
1797 return GLX_BAD_CONTEXT
;
1802 __glXGetSwapIntervalMESA(void)
1804 #ifdef GLX_DIRECT_RENDERING
1805 struct glx_context
*gc
= __glXGetCurrentContext();
1807 if (gc
!= NULL
&& gc
->isDirect
) {
1808 struct glx_screen
*psc
;
1810 psc
= GetGLXScreenConfigs( gc
->currentDpy
, gc
->screen
);
1811 if (psc
&& psc
->driScreen
&& psc
->driScreen
->getSwapInterval
) {
1812 __GLXDRIdrawable
*pdraw
=
1813 GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
);
1814 return psc
->driScreen
->getSwapInterval(pdraw
);
1824 ** GLX_SGI_video_sync
1827 __glXGetVideoSyncSGI(unsigned int *count
)
1829 int64_t ust
, msc
, sbc
;
1831 struct glx_context
*gc
= __glXGetCurrentContext();
1832 struct glx_screen
*psc
;
1833 #ifdef GLX_DIRECT_RENDERING
1834 __GLXDRIdrawable
*pdraw
;
1838 return GLX_BAD_CONTEXT
;
1840 #ifdef GLX_DIRECT_RENDERING
1842 return GLX_BAD_CONTEXT
;
1845 psc
= GetGLXScreenConfigs(gc
->currentDpy
, gc
->screen
);
1846 #ifdef GLX_DIRECT_RENDERING
1847 pdraw
= GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
);
1850 /* FIXME: Looking at the GLX_SGI_video_sync spec in the extension registry,
1851 * FIXME: there should be a GLX encoding for this call. I can find no
1852 * FIXME: documentation for the GLX encoding.
1854 #ifdef GLX_DIRECT_RENDERING
1855 if (psc
&& psc
->driScreen
&& psc
->driScreen
->getDrawableMSC
) {
1856 ret
= psc
->driScreen
->getDrawableMSC(psc
, pdraw
, &ust
, &msc
, &sbc
);
1857 *count
= (unsigned) msc
;
1858 return (ret
== True
) ? 0 : GLX_BAD_CONTEXT
;
1862 return GLX_BAD_CONTEXT
;
1866 __glXWaitVideoSyncSGI(int divisor
, int remainder
, unsigned int *count
)
1868 struct glx_context
*gc
= __glXGetCurrentContext();
1869 struct glx_screen
*psc
;
1870 #ifdef GLX_DIRECT_RENDERING
1871 __GLXDRIdrawable
*pdraw
;
1873 int64_t ust
, msc
, sbc
;
1876 if (divisor
<= 0 || remainder
< 0)
1877 return GLX_BAD_VALUE
;
1880 return GLX_BAD_CONTEXT
;
1882 #ifdef GLX_DIRECT_RENDERING
1884 return GLX_BAD_CONTEXT
;
1887 psc
= GetGLXScreenConfigs( gc
->currentDpy
, gc
->screen
);
1888 #ifdef GLX_DIRECT_RENDERING
1889 pdraw
= GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
);
1892 #ifdef GLX_DIRECT_RENDERING
1893 if (psc
&& psc
->driScreen
&& psc
->driScreen
->waitForMSC
) {
1894 ret
= psc
->driScreen
->waitForMSC(pdraw
, 0, divisor
, remainder
, &ust
, &msc
,
1896 *count
= (unsigned) msc
;
1897 return (ret
== True
) ? 0 : GLX_BAD_CONTEXT
;
1901 return GLX_BAD_CONTEXT
;
1904 #endif /* GLX_USE_APPLEGL */
1907 ** GLX_SGIX_fbconfig
1908 ** Many of these functions are aliased to GLX 1.3 entry points in the
1909 ** GLX_functions table.
1913 GLX_ALIAS(int, glXGetFBConfigAttribSGIX
,
1914 (Display
* dpy
, GLXFBConfigSGIX config
, int attribute
, int *value
),
1915 (dpy
, config
, attribute
, value
), glXGetFBConfigAttrib
)
1917 _X_EXPORT
GLX_ALIAS(GLXFBConfigSGIX
*, glXChooseFBConfigSGIX
,
1918 (Display
* dpy
, int screen
, int *attrib_list
,
1919 int *nelements
), (dpy
, screen
, attrib_list
, nelements
),
1922 _X_EXPORT
GLX_ALIAS(XVisualInfo
*, glXGetVisualFromFBConfigSGIX
,
1923 (Display
* dpy
, GLXFBConfigSGIX config
),
1924 (dpy
, config
), glXGetVisualFromFBConfig
)
1927 glXCreateGLXPixmapWithConfigSGIX(Display
* dpy
,
1928 GLXFBConfigSGIX fbconfig
,
1931 #ifndef GLX_USE_APPLEGL
1932 xGLXVendorPrivateWithReplyReq
*vpreq
;
1933 xGLXCreateGLXPixmapWithConfigSGIXReq
*req
;
1934 GLXPixmap xid
= None
;
1936 struct glx_screen
*psc
;
1938 struct glx_config
*config
= (struct glx_config
*) fbconfig
;
1941 if ((dpy
== NULL
) || (config
== NULL
)) {
1944 #ifdef GLX_USE_APPLEGL
1945 if(apple_glx_pixmap_create(dpy
, config
->screen
, pixmap
, config
))
1950 psc
= GetGLXScreenConfigs(dpy
, config
->screen
);
1952 && __glXExtensionBitIsEnabled(psc
, SGIX_fbconfig_bit
)) {
1953 opcode
= __glXSetupForCommand(dpy
);
1958 /* Send the glXCreateGLXPixmapWithConfigSGIX request */
1960 GetReqExtra(GLXVendorPrivateWithReply
,
1961 sz_xGLXCreateGLXPixmapWithConfigSGIXReq
-
1962 sz_xGLXVendorPrivateWithReplyReq
, vpreq
);
1963 req
= (xGLXCreateGLXPixmapWithConfigSGIXReq
*) vpreq
;
1964 req
->reqType
= opcode
;
1965 req
->glxCode
= X_GLXVendorPrivateWithReply
;
1966 req
->vendorCode
= X_GLXvop_CreateGLXPixmapWithConfigSGIX
;
1967 req
->screen
= config
->screen
;
1968 req
->fbconfig
= config
->fbconfigID
;
1969 req
->pixmap
= pixmap
;
1970 req
->glxpixmap
= xid
= XAllocID(dpy
);
1979 _X_EXPORT GLXContext
1980 glXCreateContextWithConfigSGIX(Display
* dpy
,
1981 GLXFBConfigSGIX fbconfig
, int renderType
,
1982 GLXContext shareList
, Bool allowDirect
)
1984 GLXContext gc
= NULL
;
1985 struct glx_config
*config
= (struct glx_config
*) fbconfig
;
1986 struct glx_screen
*psc
;
1989 if ((dpy
== NULL
) || (config
== NULL
)) {
1993 psc
= GetGLXScreenConfigs(dpy
, config
->screen
);
1995 && __glXExtensionBitIsEnabled(psc
, SGIX_fbconfig_bit
)) {
1996 gc
= CreateContext(dpy
, config
->fbconfigID
, config
, shareList
,
1998 X_GLXvop_CreateContextWithConfigSGIX
, renderType
,
2006 _X_EXPORT GLXFBConfigSGIX
2007 glXGetFBConfigFromVisualSGIX(Display
* dpy
, XVisualInfo
* vis
)
2009 struct glx_display
*priv
;
2010 struct glx_screen
*psc
= NULL
;
2012 if ((GetGLXPrivScreenConfig(dpy
, vis
->screen
, &priv
, &psc
) == Success
)
2013 && __glXExtensionBitIsEnabled(psc
, SGIX_fbconfig_bit
)
2014 && (psc
->configs
->fbconfigID
!= (int) GLX_DONT_CARE
)) {
2015 return (GLXFBConfigSGIX
) glx_config_find_visual(psc
->configs
,
2022 #ifndef GLX_USE_APPLEGL
2024 ** GLX_SGIX_swap_group
2027 __glXJoinSwapGroupSGIX(Display
* dpy
, GLXDrawable drawable
,
2037 ** GLX_SGIX_swap_barrier
2040 __glXBindSwapBarrierSGIX(Display
* dpy
, GLXDrawable drawable
, int barrier
)
2048 __glXQueryMaxSwapBarriersSGIX(Display
* dpy
, int screen
, int *max
)
2058 ** GLX_OML_sync_control
2061 __glXGetSyncValuesOML(Display
* dpy
, GLXDrawable drawable
,
2062 int64_t * ust
, int64_t * msc
, int64_t * sbc
)
2064 struct glx_display
* const priv
= __glXInitialize(dpy
);
2066 #ifdef GLX_DIRECT_RENDERING
2067 __GLXDRIdrawable
*pdraw
;
2069 struct glx_screen
*psc
;
2074 #ifdef GLX_DIRECT_RENDERING
2075 pdraw
= GetGLXDRIDrawable(dpy
, drawable
);
2076 psc
= pdraw
? pdraw
->psc
: NULL
;
2077 if (pdraw
&& psc
->driScreen
->getDrawableMSC
) {
2078 ret
= psc
->driScreen
->getDrawableMSC(psc
, pdraw
, ust
, msc
, sbc
);
2086 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
2088 __glxGetMscRate(struct glx_screen
*psc
,
2089 int32_t * numerator
, int32_t * denominator
)
2092 XF86VidModeModeLine mode_line
;
2096 if (XF86VidModeQueryVersion(psc
->dpy
, &i
, &i
) &&
2097 XF86VidModeGetModeLine(psc
->dpy
, psc
->scr
, &dot_clock
, &mode_line
)) {
2098 unsigned n
= dot_clock
* 1000;
2099 unsigned d
= mode_line
.vtotal
* mode_line
.htotal
;
2101 # define V_INTERLACE 0x010
2102 # define V_DBLSCAN 0x020
2104 if (mode_line
.flags
& V_INTERLACE
)
2106 else if (mode_line
.flags
& V_DBLSCAN
)
2109 /* The OML_sync_control spec requires that if the refresh rate is a
2110 * whole number, that the returned numerator be equal to the refresh
2111 * rate and the denominator be 1.
2119 static const unsigned f
[] = { 13, 11, 7, 5, 3, 2, 0 };
2121 /* This is a poor man's way to reduce a fraction. It's far from
2122 * perfect, but it will work well enough for this situation.
2125 for (i
= 0; f
[i
] != 0; i
++) {
2126 while (n
% f
[i
] == 0 && d
% f
[i
] == 0) {
2146 * Determine the refresh rate of the specified drawable and display.
2148 * \param dpy Display whose refresh rate is to be determined.
2149 * \param drawable Drawable whose refresh rate is to be determined.
2150 * \param numerator Numerator of the refresh rate.
2151 * \param demoninator Denominator of the refresh rate.
2152 * \return If the refresh rate for the specified display and drawable could
2153 * be calculated, True is returned. Otherwise False is returned.
2155 * \note This function is implemented entirely client-side. A lot of other
2156 * functionality is required to export GLX_OML_sync_control, so on
2157 * XFree86 this function can be called for direct-rendering contexts
2158 * when GLX_OML_sync_control appears in the client extension string.
2162 __glXGetMscRateOML(Display
* dpy
, GLXDrawable drawable
,
2163 int32_t * numerator
, int32_t * denominator
)
2165 #if defined( GLX_DIRECT_RENDERING ) && defined( XF86VIDMODE )
2166 __GLXDRIdrawable
*draw
= GetGLXDRIDrawable(dpy
, drawable
);
2171 return __glxGetMscRate(draw
->psc
, numerator
, denominator
);
2183 __glXSwapBuffersMscOML(Display
* dpy
, GLXDrawable drawable
,
2184 int64_t target_msc
, int64_t divisor
, int64_t remainder
)
2186 struct glx_context
*gc
= __glXGetCurrentContext();
2187 #ifdef GLX_DIRECT_RENDERING
2188 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
);
2189 struct glx_screen
*psc
= pdraw
? pdraw
->psc
: NULL
;
2192 if (!gc
) /* no GLX for this */
2195 #ifdef GLX_DIRECT_RENDERING
2196 if (!pdraw
|| !gc
->isDirect
)
2200 /* The OML_sync_control spec says these should "generate a GLX_BAD_VALUE
2201 * error", but it also says "It [glXSwapBuffersMscOML] will return a value
2202 * of -1 if the function failed because of errors detected in the input
2205 if (divisor
< 0 || remainder
< 0 || target_msc
< 0)
2207 if (divisor
> 0 && remainder
>= divisor
)
2210 if (target_msc
== 0 && divisor
== 0 && remainder
== 0)
2213 #ifdef GLX_DIRECT_RENDERING
2214 if (psc
->driScreen
&& psc
->driScreen
->swapBuffers
)
2215 return (*psc
->driScreen
->swapBuffers
)(pdraw
, target_msc
, divisor
,
2224 __glXWaitForMscOML(Display
* dpy
, GLXDrawable drawable
,
2225 int64_t target_msc
, int64_t divisor
,
2226 int64_t remainder
, int64_t * ust
,
2227 int64_t * msc
, int64_t * sbc
)
2229 #ifdef GLX_DIRECT_RENDERING
2230 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
);
2231 struct glx_screen
*psc
= pdraw
? pdraw
->psc
: NULL
;
2236 /* The OML_sync_control spec says these should "generate a GLX_BAD_VALUE
2237 * error", but the return type in the spec is Bool.
2239 if (divisor
< 0 || remainder
< 0 || target_msc
< 0)
2241 if (divisor
> 0 && remainder
>= divisor
)
2244 #ifdef GLX_DIRECT_RENDERING
2245 if (pdraw
&& psc
->driScreen
&& psc
->driScreen
->waitForMSC
) {
2246 ret
= psc
->driScreen
->waitForMSC(pdraw
, target_msc
, divisor
, remainder
,
2257 __glXWaitForSbcOML(Display
* dpy
, GLXDrawable drawable
,
2258 int64_t target_sbc
, int64_t * ust
,
2259 int64_t * msc
, int64_t * sbc
)
2261 #ifdef GLX_DIRECT_RENDERING
2262 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
);
2263 struct glx_screen
*psc
= pdraw
? pdraw
->psc
: NULL
;
2267 /* The OML_sync_control spec says this should "generate a GLX_BAD_VALUE
2268 * error", but the return type in the spec is Bool.
2273 #ifdef GLX_DIRECT_RENDERING
2274 if (pdraw
&& psc
->driScreen
&& psc
->driScreen
->waitForSBC
) {
2275 ret
= psc
->driScreen
->waitForSBC(pdraw
, target_sbc
, ust
, msc
, sbc
);
2287 * Mesa extension stubs. These will help reduce portability problems.
2292 * Release all buffers associated with the specified GLX drawable.
2295 * This function was intended for stand-alone Mesa. The issue there is that
2296 * the library doesn't get any notification when a window is closed. In
2297 * DRI there is a similar but slightly different issue. When GLX 1.3 is
2298 * supported, there are 3 different functions to destroy a drawable. It
2299 * should be possible to create GLX protocol (or have it determine which
2300 * protocol to use based on the type of the drawable) to have one function
2301 * do the work of 3. For the direct-rendering case, this function could
2302 * just call the driver's \c __DRIdrawableRec::destroyDrawable function.
2303 * This would reduce the frequency with which \c __driGarbageCollectDrawables
2304 * would need to be used. This really should be done as part of the new DRI
2307 * \sa http://oss.sgi.com/projects/ogl-sample/registry/MESA/release_buffers.txt
2308 * __driGarbageCollectDrawables
2309 * glXDestroyGLXPixmap
2310 * glXDestroyPbuffer glXDestroyPixmap glXDestroyWindow
2311 * glXDestroyGLXPbufferSGIX glXDestroyGLXVideoSourceSGIX
2314 __glXReleaseBuffersMESA(Display
* dpy
, GLXDrawable d
)
2323 glXCreateGLXPixmapMESA(Display
* dpy
, XVisualInfo
* visual
,
2324 Pixmap pixmap
, Colormap cmap
)
2337 * GLX_MESA_copy_sub_buffer
2339 #define X_GLXvop_CopySubBufferMESA 5154 /* temporary */
2341 __glXCopySubBufferMESA(Display
* dpy
, GLXDrawable drawable
,
2342 int x
, int y
, int width
, int height
)
2344 xGLXVendorPrivateReq
*req
;
2345 struct glx_context
*gc
;
2347 CARD32
*drawable_ptr
;
2348 INT32
*x_ptr
, *y_ptr
, *w_ptr
, *h_ptr
;
2351 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
2352 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
);
2353 if (pdraw
!= NULL
) {
2354 struct glx_screen
*psc
= pdraw
->psc
;
2355 if (psc
->driScreen
->copySubBuffer
!= NULL
) {
2356 (*psc
->driScreen
->copySubBuffer
) (pdraw
, x
, y
, width
, height
, True
);
2363 opcode
= __glXSetupForCommand(dpy
);
2368 ** The calling thread may or may not have a current context. If it
2369 ** does, send the context tag so the server can do a flush.
2371 gc
= __glXGetCurrentContext();
2372 if ((gc
!= NULL
) && (dpy
== gc
->currentDpy
) &&
2373 ((drawable
== gc
->currentDrawable
) ||
2374 (drawable
== gc
->currentReadable
))) {
2375 tag
= gc
->currentContextTag
;
2382 GetReqExtra(GLXVendorPrivate
, sizeof(CARD32
) + sizeof(INT32
) * 4, req
);
2383 req
->reqType
= opcode
;
2384 req
->glxCode
= X_GLXVendorPrivate
;
2385 req
->vendorCode
= X_GLXvop_CopySubBufferMESA
;
2386 req
->contextTag
= tag
;
2388 drawable_ptr
= (CARD32
*) (req
+ 1);
2389 x_ptr
= (INT32
*) (drawable_ptr
+ 1);
2390 y_ptr
= (INT32
*) (drawable_ptr
+ 2);
2391 w_ptr
= (INT32
*) (drawable_ptr
+ 3);
2392 h_ptr
= (INT32
*) (drawable_ptr
+ 4);
2394 *drawable_ptr
= drawable
;
2406 __glXBindTexImageEXT(Display
* dpy
,
2407 GLXDrawable drawable
, int buffer
, const int *attrib_list
)
2409 struct glx_context
*gc
= __glXGetCurrentContext();
2411 if (gc
== NULL
|| gc
->vtable
->bind_tex_image
== NULL
)
2414 gc
->vtable
->bind_tex_image(dpy
, drawable
, buffer
, attrib_list
);
2418 __glXReleaseTexImageEXT(Display
* dpy
, GLXDrawable drawable
, int buffer
)
2420 struct glx_context
*gc
= __glXGetCurrentContext();
2422 if (gc
== NULL
|| gc
->vtable
->release_tex_image
== NULL
)
2425 gc
->vtable
->release_tex_image(dpy
, drawable
, buffer
);
2430 #endif /* GLX_USE_APPLEGL */
2433 ** glXGetProcAddress support
2436 struct name_address_pair
2442 #define GLX_FUNCTION(f) { # f, (GLvoid *) f }
2443 #define GLX_FUNCTION2(n,f) { # n, (GLvoid *) f }
2445 static const struct name_address_pair GLX_functions
[] = {
2446 /*** GLX_VERSION_1_0 ***/
2447 GLX_FUNCTION(glXChooseVisual
),
2448 GLX_FUNCTION(glXCopyContext
),
2449 GLX_FUNCTION(glXCreateContext
),
2450 GLX_FUNCTION(glXCreateGLXPixmap
),
2451 GLX_FUNCTION(glXDestroyContext
),
2452 GLX_FUNCTION(glXDestroyGLXPixmap
),
2453 GLX_FUNCTION(glXGetConfig
),
2454 GLX_FUNCTION(glXGetCurrentContext
),
2455 GLX_FUNCTION(glXGetCurrentDrawable
),
2456 GLX_FUNCTION(glXIsDirect
),
2457 GLX_FUNCTION(glXMakeCurrent
),
2458 GLX_FUNCTION(glXQueryExtension
),
2459 GLX_FUNCTION(glXQueryVersion
),
2460 GLX_FUNCTION(glXSwapBuffers
),
2461 GLX_FUNCTION(glXUseXFont
),
2462 GLX_FUNCTION(glXWaitGL
),
2463 GLX_FUNCTION(glXWaitX
),
2465 /*** GLX_VERSION_1_1 ***/
2466 GLX_FUNCTION(glXGetClientString
),
2467 GLX_FUNCTION(glXQueryExtensionsString
),
2468 GLX_FUNCTION(glXQueryServerString
),
2470 /*** GLX_VERSION_1_2 ***/
2471 GLX_FUNCTION(glXGetCurrentDisplay
),
2473 /*** GLX_VERSION_1_3 ***/
2474 GLX_FUNCTION(glXChooseFBConfig
),
2475 GLX_FUNCTION(glXCreateNewContext
),
2476 GLX_FUNCTION(glXCreatePbuffer
),
2477 GLX_FUNCTION(glXCreatePixmap
),
2478 GLX_FUNCTION(glXCreateWindow
),
2479 GLX_FUNCTION(glXDestroyPbuffer
),
2480 GLX_FUNCTION(glXDestroyPixmap
),
2481 GLX_FUNCTION(glXDestroyWindow
),
2482 GLX_FUNCTION(glXGetCurrentReadDrawable
),
2483 GLX_FUNCTION(glXGetFBConfigAttrib
),
2484 GLX_FUNCTION(glXGetFBConfigs
),
2485 GLX_FUNCTION(glXGetSelectedEvent
),
2486 GLX_FUNCTION(glXGetVisualFromFBConfig
),
2487 GLX_FUNCTION(glXMakeContextCurrent
),
2488 GLX_FUNCTION(glXQueryContext
),
2489 GLX_FUNCTION(glXQueryDrawable
),
2490 GLX_FUNCTION(glXSelectEvent
),
2492 #ifndef GLX_USE_APPLEGL
2493 /*** GLX_SGI_swap_control ***/
2494 GLX_FUNCTION2(glXSwapIntervalSGI
, __glXSwapIntervalSGI
),
2496 /*** GLX_SGI_video_sync ***/
2497 GLX_FUNCTION2(glXGetVideoSyncSGI
, __glXGetVideoSyncSGI
),
2498 GLX_FUNCTION2(glXWaitVideoSyncSGI
, __glXWaitVideoSyncSGI
),
2500 /*** GLX_SGI_make_current_read ***/
2501 GLX_FUNCTION2(glXMakeCurrentReadSGI
, glXMakeContextCurrent
),
2502 GLX_FUNCTION2(glXGetCurrentReadDrawableSGI
, glXGetCurrentReadDrawable
),
2504 /*** GLX_EXT_import_context ***/
2505 GLX_FUNCTION(glXFreeContextEXT
),
2506 GLX_FUNCTION(glXGetContextIDEXT
),
2507 GLX_FUNCTION2(glXGetCurrentDisplayEXT
, glXGetCurrentDisplay
),
2508 GLX_FUNCTION(glXImportContextEXT
),
2509 GLX_FUNCTION2(glXQueryContextInfoEXT
, glXQueryContext
),
2512 /*** GLX_SGIX_fbconfig ***/
2513 GLX_FUNCTION2(glXGetFBConfigAttribSGIX
, glXGetFBConfigAttrib
),
2514 GLX_FUNCTION2(glXChooseFBConfigSGIX
, glXChooseFBConfig
),
2515 GLX_FUNCTION(glXCreateGLXPixmapWithConfigSGIX
),
2516 GLX_FUNCTION(glXCreateContextWithConfigSGIX
),
2517 GLX_FUNCTION2(glXGetVisualFromFBConfigSGIX
, glXGetVisualFromFBConfig
),
2518 GLX_FUNCTION(glXGetFBConfigFromVisualSGIX
),
2520 #ifndef GLX_USE_APPLEGL
2521 /*** GLX_SGIX_pbuffer ***/
2522 GLX_FUNCTION(glXCreateGLXPbufferSGIX
),
2523 GLX_FUNCTION(glXDestroyGLXPbufferSGIX
),
2524 GLX_FUNCTION(glXQueryGLXPbufferSGIX
),
2525 GLX_FUNCTION(glXSelectEventSGIX
),
2526 GLX_FUNCTION(glXGetSelectedEventSGIX
),
2528 /*** GLX_SGIX_swap_group ***/
2529 GLX_FUNCTION2(glXJoinSwapGroupSGIX
, __glXJoinSwapGroupSGIX
),
2531 /*** GLX_SGIX_swap_barrier ***/
2532 GLX_FUNCTION2(glXBindSwapBarrierSGIX
, __glXBindSwapBarrierSGIX
),
2533 GLX_FUNCTION2(glXQueryMaxSwapBarriersSGIX
, __glXQueryMaxSwapBarriersSGIX
),
2535 /*** GLX_MESA_copy_sub_buffer ***/
2536 GLX_FUNCTION2(glXCopySubBufferMESA
, __glXCopySubBufferMESA
),
2538 /*** GLX_MESA_pixmap_colormap ***/
2539 GLX_FUNCTION(glXCreateGLXPixmapMESA
),
2541 /*** GLX_MESA_release_buffers ***/
2542 GLX_FUNCTION2(glXReleaseBuffersMESA
, __glXReleaseBuffersMESA
),
2544 /*** GLX_MESA_swap_control ***/
2545 GLX_FUNCTION2(glXSwapIntervalMESA
, __glXSwapIntervalMESA
),
2546 GLX_FUNCTION2(glXGetSwapIntervalMESA
, __glXGetSwapIntervalMESA
),
2549 /*** GLX_ARB_get_proc_address ***/
2550 GLX_FUNCTION(glXGetProcAddressARB
),
2553 GLX_FUNCTION2(glXGetProcAddress
, glXGetProcAddressARB
),
2555 #ifndef GLX_USE_APPLEGL
2556 /*** GLX_OML_sync_control ***/
2557 GLX_FUNCTION2(glXWaitForSbcOML
, __glXWaitForSbcOML
),
2558 GLX_FUNCTION2(glXWaitForMscOML
, __glXWaitForMscOML
),
2559 GLX_FUNCTION2(glXSwapBuffersMscOML
, __glXSwapBuffersMscOML
),
2560 GLX_FUNCTION2(glXGetMscRateOML
, __glXGetMscRateOML
),
2561 GLX_FUNCTION2(glXGetSyncValuesOML
, __glXGetSyncValuesOML
),
2563 /*** GLX_EXT_texture_from_pixmap ***/
2564 GLX_FUNCTION2(glXBindTexImageEXT
, __glXBindTexImageEXT
),
2565 GLX_FUNCTION2(glXReleaseTexImageEXT
, __glXReleaseTexImageEXT
),
2568 #if defined(GLX_DIRECT_RENDERING) && defined(GLX_USE_DRM)
2569 /*** DRI configuration ***/
2570 GLX_FUNCTION(glXGetScreenDriver
),
2571 GLX_FUNCTION(glXGetDriverConfig
),
2574 /*** GLX_ARB_create_context and GLX_ARB_create_context_profile ***/
2575 GLX_FUNCTION(glXCreateContextAttribsARB
),
2577 /*** GLX_MESA_query_renderer ***/
2578 GLX_FUNCTION(glXQueryRendererIntegerMESA
),
2579 GLX_FUNCTION(glXQueryRendererStringMESA
),
2580 GLX_FUNCTION(glXQueryCurrentRendererIntegerMESA
),
2581 GLX_FUNCTION(glXQueryCurrentRendererStringMESA
),
2583 {NULL
, NULL
} /* end of list */
2586 static const GLvoid
*
2587 get_glx_proc_address(const char *funcName
)
2591 /* try static functions */
2592 for (i
= 0; GLX_functions
[i
].Name
; i
++) {
2593 if (strcmp(GLX_functions
[i
].Name
, funcName
) == 0)
2594 return GLX_functions
[i
].Address
;
2601 * Get the address of a named GL function. This is the pre-GLX 1.4 name for
2602 * \c glXGetProcAddress.
2604 * \param procName Name of a GL or GLX function.
2605 * \returns A pointer to the named function
2607 * \sa glXGetProcAddress
2609 _X_EXPORT
void (*glXGetProcAddressARB(const GLubyte
* procName
)) (void)
2611 typedef void (*gl_function
) (void);
2615 /* Search the table of GLX and internal functions first. If that
2616 * fails and the supplied name could be a valid core GL name, try
2617 * searching the core GL function table. This check is done to prevent
2618 * DRI based drivers from searching the core GL function table for
2619 * internal API functions.
2621 f
= (gl_function
) get_glx_proc_address((const char *) procName
);
2622 if ((f
== NULL
) && (procName
[0] == 'g') && (procName
[1] == 'l')
2623 && (procName
[2] != 'X')) {
2624 #ifdef GLX_SHARED_GLAPI
2625 f
= (gl_function
) __indirect_get_proc_address((const char *) procName
);
2628 f
= (gl_function
) _glapi_get_proc_address((const char *) procName
);
2630 struct glx_context
*gc
= __glXGetCurrentContext();
2632 if (gc
!= NULL
&& gc
->vtable
->get_proc_address
!= NULL
)
2633 f
= gc
->vtable
->get_proc_address((const char *) procName
);
2640 * Get the address of a named GL function. This is the GLX 1.4 name for
2641 * \c glXGetProcAddressARB.
2643 * \param procName Name of a GL or GLX function.
2644 * \returns A pointer to the named function
2646 * \sa glXGetProcAddressARB
2648 _X_EXPORT
void (*glXGetProcAddress(const GLubyte
* procName
)) (void)
2649 #if defined(__GNUC__) && !defined(GLX_ALIAS_UNSUPPORTED)
2650 # if defined(USE_MGL_NAMESPACE)
2651 __attribute__ ((alias("mglXGetProcAddressARB")));
2653 __attribute__ ((alias("glXGetProcAddressARB")));
2657 return glXGetProcAddressARB(procName
);
2659 #endif /* __GNUC__ */
2662 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
2664 * Get the unadjusted system time (UST). Currently, the UST is measured in
2665 * microseconds since Epoc. The actual resolution of the UST may vary from
2666 * system to system, and the units may vary from release to release.
2667 * Drivers should not call this function directly. They should instead use
2668 * \c glXGetProcAddress to obtain a pointer to the function.
2670 * \param ust Location to store the 64-bit UST
2671 * \returns Zero on success or a negative errno value on failure.
2673 * \sa glXGetProcAddress, PFNGLXGETUSTPROC
2675 * \since Internal API version 20030317.
2678 __glXGetUST(int64_t * ust
)
2686 if (gettimeofday(&tv
, NULL
) == 0) {
2687 ust
[0] = (tv
.tv_sec
* 1000000) + tv
.tv_usec
;
2694 #endif /* GLX_DIRECT_RENDERING */
2696 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
2698 GLAPI
int GLAPIENTRY
2699 MesaGLInteropGLXQueryDeviceInfo(Display
*dpy
, GLXContext context
,
2700 mesa_glinterop_device_info
*out
)
2702 struct glx_context
*gc
= (struct glx_context
*)context
;
2707 if (!gc
|| gc
->xid
== None
|| !gc
->isDirect
) {
2709 return MESA_GLINTEROP_INVALID_CONTEXT
;
2712 if (!gc
->vtable
->interop_query_device_info
) {
2714 return MESA_GLINTEROP_UNSUPPORTED
;
2717 ret
= gc
->vtable
->interop_query_device_info(gc
, out
);
2722 GLAPI
int GLAPIENTRY
2723 MesaGLInteropGLXExportObject(Display
*dpy
, GLXContext context
,
2724 const mesa_glinterop_export_in
*in
,
2725 mesa_glinterop_export_out
*out
)
2727 struct glx_context
*gc
= (struct glx_context
*)context
;
2732 if (!gc
|| gc
->xid
== None
|| !gc
->isDirect
) {
2734 return MESA_GLINTEROP_INVALID_CONTEXT
;
2737 if (!gc
->vtable
->interop_export_object
) {
2739 return MESA_GLINTEROP_UNSUPPORTED
;
2742 ret
= gc
->vtable
->interop_export_object(gc
, in
, out
);
2747 #endif /* defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) */