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_glx_context.h"
45 #include "apple_glx.h"
49 #include <X11/extensions/xf86vmode.h>
56 #include <X11/Xlib-xcb.h>
60 static const char __glXGLXClientVendorName
[] = "Mesa Project and SGI";
61 static const char __glXGLXClientVersion
[] = "1.4";
63 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
66 * Get the __DRIdrawable for the drawable associated with a GLXContext
68 * \param dpy The display associated with \c drawable.
69 * \param drawable GLXDrawable whose __DRIdrawable part is to be retrieved.
70 * \param scrn_num If non-NULL, the drawables screen is stored there
71 * \returns A pointer to the context's __DRIdrawable on success, or NULL if
72 * the drawable is not associated with a direct-rendering context.
74 _X_HIDDEN __GLXDRIdrawable
*
75 GetGLXDRIDrawable(Display
* dpy
, GLXDrawable drawable
)
77 struct glx_display
*priv
= __glXInitialize(dpy
);
78 __GLXDRIdrawable
*pdraw
;
83 if (__glxHashLookup(priv
->drawHash
, drawable
, (void *) &pdraw
) == 0)
91 _X_HIDDEN
struct glx_drawable
*
92 GetGLXDrawable(Display
*dpy
, GLXDrawable drawable
)
94 struct glx_display
*priv
= __glXInitialize(dpy
);
95 struct glx_drawable
*glxDraw
;
100 if (__glxHashLookup(priv
->glXDrawHash
, drawable
, (void *) &glxDraw
) == 0)
107 InitGLXDrawable(Display
*dpy
, struct glx_drawable
*glxDraw
, XID xDrawable
,
108 GLXDrawable drawable
)
110 struct glx_display
*priv
= __glXInitialize(dpy
);
115 glxDraw
->xDrawable
= xDrawable
;
116 glxDraw
->drawable
= drawable
;
117 glxDraw
->lastEventSbc
= 0;
118 glxDraw
->eventSbcWrap
= 0;
120 return __glxHashInsert(priv
->glXDrawHash
, drawable
, glxDraw
);
124 DestroyGLXDrawable(Display
*dpy
, GLXDrawable drawable
)
126 struct glx_display
*priv
= __glXInitialize(dpy
);
127 struct glx_drawable
*glxDraw
;
132 glxDraw
= GetGLXDrawable(dpy
, drawable
);
133 __glxHashDelete(priv
->glXDrawHash
, drawable
);
138 * Get the GLX per-screen data structure associated with a GLX context.
140 * \param dpy Display for which the GLX per-screen information is to be
142 * \param scrn Screen on \c dpy for which the GLX per-screen information is
144 * \returns A pointer to the GLX per-screen data if \c dpy and \c scrn
145 * specify a valid GLX screen, or NULL otherwise.
147 * \todo Should this function validate that \c scrn is within the screen
148 * number range for \c dpy?
151 _X_HIDDEN
struct glx_screen
*
152 GetGLXScreenConfigs(Display
* dpy
, int scrn
)
154 struct glx_display
*const priv
= __glXInitialize(dpy
);
158 NULL
) ? priv
->screens
[scrn
] : NULL
;
163 GetGLXPrivScreenConfig(Display
* dpy
, int scrn
, struct glx_display
** ppriv
,
164 struct glx_screen
** ppsc
)
166 /* Initialize the extension, if needed . This has the added value
167 * of initializing/allocating the display private
171 return GLX_NO_EXTENSION
;
174 *ppriv
= __glXInitialize(dpy
);
175 if (*ppriv
== NULL
) {
176 return GLX_NO_EXTENSION
;
179 /* Check screen number to see if its valid */
180 if ((scrn
< 0) || (scrn
>= ScreenCount(dpy
))) {
181 return GLX_BAD_SCREEN
;
184 /* Check to see if the GL is supported on this screen */
185 *ppsc
= (*ppriv
)->screens
[scrn
];
186 if ((*ppsc
)->configs
== NULL
&& (*ppsc
)->visuals
== NULL
) {
187 /* No support for GL on this screen regardless of visual */
188 return GLX_BAD_VISUAL
;
196 * Determine if a \c GLXFBConfig supplied by the application is valid.
198 * \param dpy Application supplied \c Display pointer.
199 * \param config Application supplied \c GLXFBConfig.
201 * \returns If the \c GLXFBConfig is valid, the a pointer to the matching
202 * \c struct glx_config structure is returned. Otherwise, \c NULL
205 static struct glx_config
*
206 ValidateGLXFBConfig(Display
* dpy
, GLXFBConfig fbconfig
)
208 struct glx_display
*const priv
= __glXInitialize(dpy
);
209 int num_screens
= ScreenCount(dpy
);
211 struct glx_config
*config
;
214 for (i
= 0; i
< num_screens
; i
++) {
215 for (config
= priv
->screens
[i
]->configs
; config
!= NULL
;
216 config
= config
->next
) {
217 if (config
== (struct glx_config
*) fbconfig
) {
228 * Verifies context's GLX_RENDER_TYPE value with config.
230 * \param config GLX FBConfig which will support the returned renderType.
231 * \param renderType The context render type to be verified.
232 * \return True if the value of context renderType was approved, or 0 if no
233 * valid value was found.
236 validate_renderType_against_config(const struct glx_config
*config
,
239 switch (renderType
) {
241 return (config
->renderType
& GLX_RGBA_BIT
) != 0;
242 case GLX_COLOR_INDEX_TYPE
:
243 return (config
->renderType
& GLX_COLOR_INDEX_BIT
) != 0;
244 case GLX_RGBA_FLOAT_TYPE_ARB
:
245 return (config
->renderType
& GLX_RGBA_FLOAT_BIT_ARB
) != 0;
246 case GLX_RGBA_UNSIGNED_FLOAT_TYPE_EXT
:
247 return (config
->renderType
& GLX_RGBA_UNSIGNED_FLOAT_BIT_EXT
) != 0;
255 glx_context_init(struct glx_context
*gc
,
256 struct glx_screen
*psc
, struct glx_config
*config
)
258 gc
->majorOpcode
= __glXSetupForCommand(psc
->display
->dpy
);
259 if (!gc
->majorOpcode
)
262 gc
->screen
= psc
->scr
;
265 gc
->isDirect
= GL_TRUE
;
266 gc
->currentContextTag
= -1;
273 * Create a new context.
275 * \param renderType For FBConfigs, what is the rendering type?
279 CreateContext(Display
*dpy
, int generic_id
, struct glx_config
*config
,
280 GLXContext shareList_user
, Bool allowDirect
,
281 unsigned code
, int renderType
, int screen
)
283 struct glx_context
*gc
;
284 struct glx_screen
*psc
;
285 struct glx_context
*shareList
= (struct glx_context
*) shareList_user
;
289 psc
= GetGLXScreenConfigs(dpy
, screen
);
293 if (generic_id
== None
)
297 #ifdef GLX_USE_APPLEGL
298 gc
= applegl_create_context(psc
, config
, shareList
, renderType
);
300 if (allowDirect
&& psc
->vtable
->create_context
)
301 gc
= psc
->vtable
->create_context(psc
, config
, shareList
, renderType
);
303 gc
= indirect_create_context(psc
, config
, shareList
, renderType
);
310 case X_GLXCreateContext
: {
311 xGLXCreateContextReq
*req
;
313 /* Send the glXCreateContext request */
314 GetReq(GLXCreateContext
, req
);
315 req
->reqType
= gc
->majorOpcode
;
316 req
->glxCode
= X_GLXCreateContext
;
317 req
->context
= gc
->xid
= XAllocID(dpy
);
318 req
->visual
= generic_id
;
319 req
->screen
= screen
;
320 req
->shareList
= shareList
? shareList
->xid
: None
;
321 req
->isDirect
= gc
->isDirect
;
325 case X_GLXCreateNewContext
: {
326 xGLXCreateNewContextReq
*req
;
328 /* Send the glXCreateNewContext request */
329 GetReq(GLXCreateNewContext
, req
);
330 req
->reqType
= gc
->majorOpcode
;
331 req
->glxCode
= X_GLXCreateNewContext
;
332 req
->context
= gc
->xid
= XAllocID(dpy
);
333 req
->fbconfig
= generic_id
;
334 req
->screen
= screen
;
335 req
->renderType
= renderType
;
336 req
->shareList
= shareList
? shareList
->xid
: None
;
337 req
->isDirect
= gc
->isDirect
;
341 case X_GLXvop_CreateContextWithConfigSGIX
: {
342 xGLXVendorPrivateWithReplyReq
*vpreq
;
343 xGLXCreateContextWithConfigSGIXReq
*req
;
345 /* Send the glXCreateNewContext request */
346 GetReqExtra(GLXVendorPrivateWithReply
,
347 sz_xGLXCreateContextWithConfigSGIXReq
-
348 sz_xGLXVendorPrivateWithReplyReq
, vpreq
);
349 req
= (xGLXCreateContextWithConfigSGIXReq
*) vpreq
;
350 req
->reqType
= gc
->majorOpcode
;
351 req
->glxCode
= X_GLXVendorPrivateWithReply
;
352 req
->vendorCode
= X_GLXvop_CreateContextWithConfigSGIX
;
353 req
->context
= gc
->xid
= XAllocID(dpy
);
354 req
->fbconfig
= generic_id
;
355 req
->screen
= screen
;
356 req
->renderType
= renderType
;
357 req
->shareList
= shareList
? shareList
->xid
: None
;
358 req
->isDirect
= gc
->isDirect
;
363 /* What to do here? This case is the sign of an internal error. It
364 * should never be reachable.
372 gc
->share_xid
= shareList
? shareList
->xid
: None
;
373 gc
->imported
= GL_FALSE
;
375 return (GLXContext
) gc
;
379 glXCreateContext(Display
* dpy
, XVisualInfo
* vis
,
380 GLXContext shareList
, Bool allowDirect
)
382 struct glx_config
*config
= NULL
;
383 int renderType
= GLX_RGBA_TYPE
;
385 #if defined(GLX_DIRECT_RENDERING) || defined(GLX_USE_APPLEGL)
386 struct glx_screen
*const psc
= GetGLXScreenConfigs(dpy
, vis
->screen
);
389 config
= glx_config_find_visual(psc
->visuals
, vis
->visualid
);
391 if (config
== NULL
) {
394 error
.errorCode
= BadValue
;
395 error
.resourceID
= vis
->visualid
;
396 error
.sequenceNumber
= dpy
->request
;
397 error
.type
= X_Error
;
398 error
.majorCode
= __glXSetupForCommand(dpy
);
399 error
.minorCode
= X_GLXCreateContext
;
400 _XError(dpy
, &error
);
404 /* Choose the context render type based on DRI config values. It is
405 * unusual to set this type from config, but we have no other choice, as
406 * this old API does not provide renderType parameter.
408 if (config
->renderType
& GLX_RGBA_FLOAT_BIT_ARB
) {
409 renderType
= GLX_RGBA_FLOAT_TYPE_ARB
;
410 } else if (config
->renderType
& GLX_RGBA_UNSIGNED_FLOAT_BIT_EXT
) {
411 renderType
= GLX_RGBA_UNSIGNED_FLOAT_TYPE_EXT
;
412 } else if (config
->renderType
& GLX_RGBA_BIT
) {
413 renderType
= GLX_RGBA_TYPE
;
414 } else if (config
->renderType
& GLX_COLOR_INDEX_BIT
) {
415 renderType
= GLX_COLOR_INDEX_TYPE
;
416 } else if (config
->rgbMode
) {
417 /* If we're here, then renderType is not set correctly. Let's use a
418 * safeguard - any TrueColor or DirectColor mode is RGB mode. Such
419 * default value is needed by old DRI drivers, which didn't set
420 * renderType correctly as the value was just ignored.
422 renderType
= GLX_RGBA_TYPE
;
424 /* Safeguard - only one option left, all non-RGB modes are indexed
425 * modes. Again, this allows drivers with invalid renderType to work
428 renderType
= GLX_COLOR_INDEX_TYPE
;
432 return CreateContext(dpy
, vis
->visualid
, config
, shareList
, allowDirect
,
433 X_GLXCreateContext
, renderType
, vis
->screen
);
437 glx_send_destroy_context(Display
*dpy
, XID xid
)
439 CARD8 opcode
= __glXSetupForCommand(dpy
);
440 xGLXDestroyContextReq
*req
;
443 GetReq(GLXDestroyContext
, req
);
444 req
->reqType
= opcode
;
445 req
->glxCode
= X_GLXDestroyContext
;
452 ** Destroy the named context
456 glXDestroyContext(Display
* dpy
, GLXContext ctx
)
458 struct glx_context
*gc
= (struct glx_context
*) ctx
;
460 if (gc
== NULL
|| gc
->xid
== None
)
465 glx_send_destroy_context(dpy
, gc
->xid
);
467 if (gc
->currentDpy
) {
468 /* This context is bound to some thread. According to the man page,
469 * we should not actually delete the context until it's unbound.
470 * Note that we set gc->xid = None above. In MakeContextCurrent()
471 * we check for that and delete the context there.
475 gc
->vtable
->destroy(gc
);
481 ** Return the major and minor version #s for the GLX extension
484 glXQueryVersion(Display
* dpy
, int *major
, int *minor
)
486 struct glx_display
*priv
;
488 /* Init the extension. This fetches the major and minor version. */
489 priv
= __glXInitialize(dpy
);
494 *major
= priv
->majorVersion
;
496 *minor
= priv
->minorVersion
;
501 ** Query the existance of the GLX extension
504 glXQueryExtension(Display
* dpy
, int *errorBase
, int *eventBase
)
506 int major_op
, erb
, evb
;
509 rv
= XQueryExtension(dpy
, GLX_EXTENSION_NAME
, &major_op
, &evb
, &erb
);
520 ** Put a barrier in the token stream that forces the GL to finish its
521 ** work before X can proceed.
526 struct glx_context
*gc
= __glXGetCurrentContext();
528 if (gc
&& gc
->vtable
->wait_gl
)
529 gc
->vtable
->wait_gl(gc
);
533 ** Put a barrier in the token stream that forces X to finish its
534 ** work before GL can proceed.
539 struct glx_context
*gc
= __glXGetCurrentContext();
541 if (gc
&& gc
->vtable
->wait_x
)
542 gc
->vtable
->wait_x(gc
);
546 glXUseXFont(Font font
, int first
, int count
, int listBase
)
548 struct glx_context
*gc
= __glXGetCurrentContext();
550 if (gc
&& gc
->vtable
->use_x_font
)
551 gc
->vtable
->use_x_font(gc
, font
, first
, count
, listBase
);
554 /************************************************************************/
557 ** Copy the source context to the destination context using the
561 glXCopyContext(Display
* dpy
, GLXContext source_user
,
562 GLXContext dest_user
, unsigned long mask
)
564 struct glx_context
*source
= (struct glx_context
*) source_user
;
565 struct glx_context
*dest
= (struct glx_context
*) dest_user
;
566 #ifdef GLX_USE_APPLEGL
567 struct glx_context
*gc
= __glXGetCurrentContext();
571 if(apple_glx_copy_context(gc
->driContext
, source
->driContext
, dest
->driContext
,
572 mask
, &errorcode
, &x11error
)) {
573 __glXSendError(dpy
, errorcode
, 0, X_GLXCopyContext
, x11error
);
577 xGLXCopyContextReq
*req
;
578 struct glx_context
*gc
= __glXGetCurrentContext();
582 opcode
= __glXSetupForCommand(dpy
);
587 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
589 /* NOT_DONE: This does not work yet */
594 ** If the source is the current context, send its tag so that the context
595 ** can be flushed before the copy.
597 if (source
== gc
&& dpy
== gc
->currentDpy
) {
598 tag
= gc
->currentContextTag
;
604 /* Send the glXCopyContext request */
606 GetReq(GLXCopyContext
, req
);
607 req
->reqType
= opcode
;
608 req
->glxCode
= X_GLXCopyContext
;
609 req
->source
= source
? source
->xid
: None
;
610 req
->dest
= dest
? dest
->xid
: None
;
612 req
->contextTag
= tag
;
615 #endif /* GLX_USE_APPLEGL */
620 * Determine if a context uses direct rendering.
622 * \param dpy Display where the context was created.
623 * \param contextID ID of the context to be tested.
625 * \returns \c True if the context is direct rendering or not.
628 __glXIsDirect(Display
* dpy
, GLXContextID contextID
)
632 xcb_generic_error_t
*err
;
633 xcb_glx_is_direct_reply_t
*reply
;
636 opcode
= __glXSetupForCommand(dpy
);
641 c
= XGetXCBConnection(dpy
);
642 reply
= xcb_glx_is_direct_reply(c
, xcb_glx_is_direct(c
, contextID
), &err
);
643 is_direct
= (reply
!= NULL
&& reply
->is_direct
) ? True
: False
;
646 __glXSendErrorForXcb(dpy
, err
);
657 * Shouldn't this function \b always return \c False when
658 * \c GLX_DIRECT_RENDERING is not defined? Do we really need to bother with
659 * the GLX protocol here at all?
662 glXIsDirect(Display
* dpy
, GLXContext gc_user
)
664 struct glx_context
*gc
= (struct glx_context
*) gc_user
;
669 else if (gc
->isDirect
) {
672 #ifdef GLX_USE_APPLEGL /* TODO: indirect on darwin */
675 return __glXIsDirect(dpy
, gc
->xid
);
680 glXCreateGLXPixmap(Display
* dpy
, XVisualInfo
* vis
, Pixmap pixmap
)
682 #ifdef GLX_USE_APPLEGL
683 int screen
= vis
->screen
;
684 struct glx_screen
*const psc
= GetGLXScreenConfigs(dpy
, screen
);
685 const struct glx_config
*config
;
687 config
= glx_config_find_visual(psc
->visuals
, vis
->visualid
);
689 if(apple_glx_pixmap_create(dpy
, vis
->screen
, pixmap
, config
))
694 xGLXCreateGLXPixmapReq
*req
;
695 struct glx_drawable
*glxDraw
;
699 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
700 struct glx_display
*const priv
= __glXInitialize(dpy
);
706 opcode
= __glXSetupForCommand(dpy
);
711 glxDraw
= malloc(sizeof(*glxDraw
));
715 /* Send the glXCreateGLXPixmap request */
717 GetReq(GLXCreateGLXPixmap
, req
);
718 req
->reqType
= opcode
;
719 req
->glxCode
= X_GLXCreateGLXPixmap
;
720 req
->screen
= vis
->screen
;
721 req
->visual
= vis
->visualid
;
722 req
->pixmap
= pixmap
;
723 req
->glxpixmap
= xid
= XAllocID(dpy
);
727 if (InitGLXDrawable(dpy
, glxDraw
, pixmap
, req
->glxpixmap
)) {
732 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
734 /* FIXME: Maybe delay __DRIdrawable creation until the drawable
735 * is actually bound to a context... */
737 __GLXDRIdrawable
*pdraw
;
738 struct glx_screen
*psc
;
739 struct glx_config
*config
;
741 psc
= priv
->screens
[vis
->screen
];
742 if (psc
->driScreen
== NULL
)
745 config
= glx_config_find_visual(psc
->visuals
, vis
->visualid
);
746 pdraw
= psc
->driScreen
->createDrawable(psc
, pixmap
, xid
, config
);
748 fprintf(stderr
, "failed to create pixmap\n");
753 if (__glxHashInsert(priv
->drawHash
, xid
, pdraw
)) {
754 (*pdraw
->destroyDrawable
) (pdraw
);
761 xGLXDestroyGLXPixmapReq
*dreq
;
763 GetReq(GLXDestroyGLXPixmap
, dreq
);
764 dreq
->reqType
= opcode
;
765 dreq
->glxCode
= X_GLXDestroyGLXPixmap
;
766 dreq
->glxpixmap
= xid
;
777 ** Destroy the named pixmap
780 glXDestroyGLXPixmap(Display
* dpy
, GLXPixmap glxpixmap
)
782 #ifdef GLX_USE_APPLEGL
783 if(apple_glx_pixmap_destroy(dpy
, glxpixmap
))
784 __glXSendError(dpy
, GLXBadPixmap
, glxpixmap
, X_GLXDestroyPixmap
, false);
786 xGLXDestroyGLXPixmapReq
*req
;
789 opcode
= __glXSetupForCommand(dpy
);
794 /* Send the glXDestroyGLXPixmap request */
796 GetReq(GLXDestroyGLXPixmap
, req
);
797 req
->reqType
= opcode
;
798 req
->glxCode
= X_GLXDestroyGLXPixmap
;
799 req
->glxpixmap
= glxpixmap
;
803 DestroyGLXDrawable(dpy
, glxpixmap
);
805 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
807 struct glx_display
*const priv
= __glXInitialize(dpy
);
808 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, glxpixmap
);
810 if (priv
!= NULL
&& pdraw
!= NULL
) {
811 (*pdraw
->destroyDrawable
) (pdraw
);
812 __glxHashDelete(priv
->drawHash
, glxpixmap
);
816 #endif /* GLX_USE_APPLEGL */
820 glXSwapBuffers(Display
* dpy
, GLXDrawable drawable
)
822 #ifdef GLX_USE_APPLEGL
823 struct glx_context
* gc
= __glXGetCurrentContext();
824 if(gc
&& apple_glx_is_current_drawable(dpy
, gc
->driContext
, drawable
)) {
825 apple_glx_swap_buffers(gc
->driContext
);
827 __glXSendError(dpy
, GLXBadCurrentWindow
, 0, X_GLXSwapBuffers
, false);
830 struct glx_context
*gc
;
835 gc
= __glXGetCurrentContext();
837 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
839 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
);
842 Bool flush
= gc
&& drawable
== gc
->currentDrawable
;
844 (*pdraw
->psc
->driScreen
->swapBuffers
)(pdraw
, 0, 0, 0, flush
);
850 opcode
= __glXSetupForCommand(dpy
);
856 ** The calling thread may or may not have a current context. If it
857 ** does, send the context tag so the server can do a flush.
859 if ((gc
!= NULL
) && (dpy
== gc
->currentDpy
) &&
860 ((drawable
== gc
->currentDrawable
)
861 || (drawable
== gc
->currentReadable
))) {
862 tag
= gc
->currentContextTag
;
868 c
= XGetXCBConnection(dpy
);
869 xcb_glx_swap_buffers(c
, tag
, drawable
);
871 #endif /* GLX_USE_APPLEGL */
876 ** Return configuration information for the given display, screen and
877 ** visual combination.
880 glXGetConfig(Display
* dpy
, XVisualInfo
* vis
, int attribute
,
883 struct glx_display
*priv
;
884 struct glx_screen
*psc
;
885 struct glx_config
*config
;
888 status
= GetGLXPrivScreenConfig(dpy
, vis
->screen
, &priv
, &psc
);
889 if (status
== Success
) {
890 config
= glx_config_find_visual(psc
->visuals
, vis
->visualid
);
892 /* Lookup attribute after first finding a match on the visual */
893 if (config
!= NULL
) {
894 return glx_config_get(config
, attribute
, value_return
);
897 status
= GLX_BAD_VISUAL
;
901 ** If we can't find the config for this visual, this visual is not
902 ** supported by the OpenGL implementation on the server.
904 if ((status
== GLX_BAD_VISUAL
) && (attribute
== GLX_USE_GL
)) {
905 *value_return
= False
;
912 /************************************************************************/
915 init_fbconfig_for_chooser(struct glx_config
* config
,
916 GLboolean fbconfig_style_tags
)
918 memset(config
, 0, sizeof(struct glx_config
));
919 config
->visualID
= (XID
) GLX_DONT_CARE
;
920 config
->visualType
= GLX_DONT_CARE
;
922 /* glXChooseFBConfig specifies different defaults for these properties than
925 if (fbconfig_style_tags
) {
926 config
->rgbMode
= GL_TRUE
;
927 config
->doubleBufferMode
= GLX_DONT_CARE
;
928 config
->renderType
= GLX_RGBA_BIT
;
931 config
->drawableType
= GLX_WINDOW_BIT
;
932 config
->visualRating
= GLX_DONT_CARE
;
933 config
->transparentPixel
= GLX_NONE
;
934 config
->transparentRed
= GLX_DONT_CARE
;
935 config
->transparentGreen
= GLX_DONT_CARE
;
936 config
->transparentBlue
= GLX_DONT_CARE
;
937 config
->transparentAlpha
= GLX_DONT_CARE
;
938 config
->transparentIndex
= GLX_DONT_CARE
;
940 config
->xRenderable
= GLX_DONT_CARE
;
941 config
->fbconfigID
= (GLXFBConfigID
) (GLX_DONT_CARE
);
943 config
->swapMethod
= GLX_DONT_CARE
;
946 #define MATCH_DONT_CARE( param ) \
948 if ( ((int) a-> param != (int) GLX_DONT_CARE) \
949 && (a-> param != b-> param) ) { \
954 #define MATCH_MINIMUM( param ) \
956 if ( ((int) a-> param != (int) GLX_DONT_CARE) \
957 && (a-> param > b-> param) ) { \
962 #define MATCH_EXACT( param ) \
964 if ( a-> param != b-> param) { \
969 /* Test that all bits from a are contained in b */
970 #define MATCH_MASK(param) \
972 if ( ((int) a-> param != (int) GLX_DONT_CARE) \
973 && ((a->param & ~b->param) != 0) ) { \
979 * Determine if two GLXFBConfigs are compatible.
981 * \param a Application specified config to test.
982 * \param b Server specified config to test against \c a.
985 fbconfigs_compatible(const struct glx_config
* const a
,
986 const struct glx_config
* const b
)
988 MATCH_DONT_CARE(doubleBufferMode
);
989 MATCH_DONT_CARE(visualType
);
990 MATCH_DONT_CARE(visualRating
);
991 MATCH_DONT_CARE(xRenderable
);
992 MATCH_DONT_CARE(fbconfigID
);
993 MATCH_DONT_CARE(swapMethod
);
995 MATCH_MINIMUM(rgbBits
);
996 MATCH_MINIMUM(numAuxBuffers
);
997 MATCH_MINIMUM(redBits
);
998 MATCH_MINIMUM(greenBits
);
999 MATCH_MINIMUM(blueBits
);
1000 MATCH_MINIMUM(alphaBits
);
1001 MATCH_MINIMUM(depthBits
);
1002 MATCH_MINIMUM(stencilBits
);
1003 MATCH_MINIMUM(accumRedBits
);
1004 MATCH_MINIMUM(accumGreenBits
);
1005 MATCH_MINIMUM(accumBlueBits
);
1006 MATCH_MINIMUM(accumAlphaBits
);
1007 MATCH_MINIMUM(sampleBuffers
);
1008 MATCH_MINIMUM(maxPbufferWidth
);
1009 MATCH_MINIMUM(maxPbufferHeight
);
1010 MATCH_MINIMUM(maxPbufferPixels
);
1011 MATCH_MINIMUM(samples
);
1013 MATCH_DONT_CARE(stereoMode
);
1016 MATCH_MASK(drawableType
);
1017 MATCH_MASK(renderType
);
1019 /* There is a bug in a few of the XFree86 DDX drivers. They contain
1020 * visuals with a "transparent type" of 0 when they really mean GLX_NONE.
1021 * Technically speaking, it is a bug in the DDX driver, but there is
1022 * enough of an installed base to work around the problem here. In any
1023 * case, 0 is not a valid value of the transparent type, so we'll treat 0
1024 * from the app as GLX_DONT_CARE. We'll consider GLX_NONE from the app and
1025 * 0 from the server to be a match to maintain backward compatibility with
1026 * the (broken) drivers.
1029 if (a
->transparentPixel
!= (int) GLX_DONT_CARE
&& a
->transparentPixel
!= 0) {
1030 if (a
->transparentPixel
== GLX_NONE
) {
1031 if (b
->transparentPixel
!= GLX_NONE
&& b
->transparentPixel
!= 0)
1035 MATCH_EXACT(transparentPixel
);
1038 switch (a
->transparentPixel
) {
1039 case GLX_TRANSPARENT_RGB
:
1040 MATCH_DONT_CARE(transparentRed
);
1041 MATCH_DONT_CARE(transparentGreen
);
1042 MATCH_DONT_CARE(transparentBlue
);
1043 MATCH_DONT_CARE(transparentAlpha
);
1046 case GLX_TRANSPARENT_INDEX
:
1047 MATCH_DONT_CARE(transparentIndex
);
1059 /* There's some trickly language in the GLX spec about how this is supposed
1060 * to work. Basically, if a given component size is either not specified
1061 * or the requested size is zero, it is supposed to act like PERFER_SMALLER.
1062 * Well, that's really hard to do with the code as-is. This behavior is
1063 * closer to correct, but still not technically right.
1065 #define PREFER_LARGER_OR_ZERO(comp) \
1067 if ( ((*a)-> comp) != ((*b)-> comp) ) { \
1068 if ( ((*a)-> comp) == 0 ) { \
1071 else if ( ((*b)-> comp) == 0 ) { \
1075 return ((*b)-> comp) - ((*a)-> comp) ; \
1080 #define PREFER_LARGER(comp) \
1082 if ( ((*a)-> comp) != ((*b)-> comp) ) { \
1083 return ((*b)-> comp) - ((*a)-> comp) ; \
1087 #define PREFER_SMALLER(comp) \
1089 if ( ((*a)-> comp) != ((*b)-> comp) ) { \
1090 return ((*a)-> comp) - ((*b)-> comp) ; \
1095 * Compare two GLXFBConfigs. This function is intended to be used as the
1096 * compare function passed in to qsort.
1098 * \returns If \c a is a "better" config, according to the specification of
1099 * SGIX_fbconfig, a number less than zero is returned. If \c b is
1100 * better, then a number greater than zero is return. If both are
1101 * equal, zero is returned.
1102 * \sa qsort, glXChooseVisual, glXChooseFBConfig, glXChooseFBConfigSGIX
1105 fbconfig_compare(struct glx_config
**a
, struct glx_config
**b
)
1107 /* The order of these comparisons must NOT change. It is defined by
1108 * the GLX 1.4 specification.
1111 PREFER_SMALLER(visualSelectGroup
);
1113 /* The sort order for the visualRating is GLX_NONE, GLX_SLOW, and
1114 * GLX_NON_CONFORMANT_CONFIG. It just so happens that this is the
1115 * numerical sort order of the enums (0x8000, 0x8001, and 0x800D).
1117 PREFER_SMALLER(visualRating
);
1119 /* This isn't quite right. It is supposed to compare the sum of the
1120 * components the user specifically set minimums for.
1122 PREFER_LARGER_OR_ZERO(redBits
);
1123 PREFER_LARGER_OR_ZERO(greenBits
);
1124 PREFER_LARGER_OR_ZERO(blueBits
);
1125 PREFER_LARGER_OR_ZERO(alphaBits
);
1127 PREFER_SMALLER(rgbBits
);
1129 if (((*a
)->doubleBufferMode
!= (*b
)->doubleBufferMode
)) {
1130 /* Prefer single-buffer.
1132 return (!(*a
)->doubleBufferMode
) ? -1 : 1;
1135 PREFER_SMALLER(numAuxBuffers
);
1137 PREFER_SMALLER(sampleBuffers
);
1138 PREFER_SMALLER(samples
);
1140 PREFER_LARGER_OR_ZERO(depthBits
);
1141 PREFER_SMALLER(stencilBits
);
1143 /* This isn't quite right. It is supposed to compare the sum of the
1144 * components the user specifically set minimums for.
1146 PREFER_LARGER_OR_ZERO(accumRedBits
);
1147 PREFER_LARGER_OR_ZERO(accumGreenBits
);
1148 PREFER_LARGER_OR_ZERO(accumBlueBits
);
1149 PREFER_LARGER_OR_ZERO(accumAlphaBits
);
1151 PREFER_SMALLER(visualType
);
1153 /* None of the pbuffer or fbconfig specs say that this comparison needs
1154 * to happen at all, but it seems like it should.
1156 PREFER_LARGER(maxPbufferWidth
);
1157 PREFER_LARGER(maxPbufferHeight
);
1158 PREFER_LARGER(maxPbufferPixels
);
1165 * Selects and sorts a subset of the supplied configs based on the attributes.
1166 * This function forms to basis of \c glXChooseVisual, \c glXChooseFBConfig,
1167 * and \c glXChooseFBConfigSGIX.
1169 * \param configs Array of pointers to possible configs. The elements of
1170 * this array that do not meet the criteria will be set to
1171 * NULL. The remaining elements will be sorted according to
1172 * the various visual / FBConfig selection rules.
1173 * \param num_configs Number of elements in the \c configs array.
1174 * \param attribList Attributes used select from \c configs. This array is
1175 * terminated by a \c None tag. The array can either take
1176 * the form expected by \c glXChooseVisual (where boolean
1177 * tags do not have a value) or by \c glXChooseFBConfig
1178 * (where every tag has a value).
1179 * \param fbconfig_style_tags Selects whether \c attribList is in
1180 * \c glXChooseVisual style or
1181 * \c glXChooseFBConfig style.
1182 * \returns The number of valid elements left in \c configs.
1184 * \sa glXChooseVisual, glXChooseFBConfig, glXChooseFBConfigSGIX
1187 choose_visual(struct glx_config
** configs
, int num_configs
,
1188 const int *attribList
, GLboolean fbconfig_style_tags
)
1190 struct glx_config test_config
;
1194 /* This is a fairly direct implementation of the selection method
1195 * described by GLX_SGIX_fbconfig. Start by culling out all the
1196 * configs that are not compatible with the selected parameter
1200 init_fbconfig_for_chooser(&test_config
, fbconfig_style_tags
);
1201 __glXInitializeVisualConfigFromTags(&test_config
, 512,
1202 (const INT32
*) attribList
,
1203 GL_TRUE
, fbconfig_style_tags
);
1206 for (i
= 0; i
< num_configs
; i
++) {
1207 if (fbconfigs_compatible(&test_config
, configs
[i
])) {
1208 configs
[base
] = configs
[i
];
1217 if (base
< num_configs
) {
1218 (void) memset(&configs
[base
], 0, sizeof(void *) * (num_configs
- base
));
1221 /* After the incompatible configs are removed, the resulting
1222 * list is sorted according to the rules set out in the various
1226 qsort(configs
, base
, sizeof(struct glx_config
*),
1227 (int (*)(const void *, const void *)) fbconfig_compare
);
1235 ** Return the visual that best matches the template. Return None if no
1236 ** visual matches the template.
1238 _X_EXPORT XVisualInfo
*
1239 glXChooseVisual(Display
* dpy
, int screen
, int *attribList
)
1241 XVisualInfo
*visualList
= NULL
;
1242 struct glx_display
*priv
;
1243 struct glx_screen
*psc
;
1244 struct glx_config test_config
;
1245 struct glx_config
*config
;
1246 struct glx_config
*best_config
= NULL
;
1249 ** Get a list of all visuals, return if list is empty
1251 if (GetGLXPrivScreenConfig(dpy
, screen
, &priv
, &psc
) != Success
) {
1257 ** Build a template from the defaults and the attribute list
1258 ** Free visual list and return if an unexpected token is encountered
1260 init_fbconfig_for_chooser(&test_config
, GL_FALSE
);
1261 __glXInitializeVisualConfigFromTags(&test_config
, 512,
1262 (const INT32
*) attribList
,
1266 ** Eliminate visuals that don't meet minimum requirements
1267 ** Compute a score for those that do
1268 ** Remember which visual, if any, got the highest score
1269 ** If no visual is acceptable, return None
1270 ** Otherwise, create an XVisualInfo list with just the selected X visual
1273 for (config
= psc
->visuals
; config
!= NULL
; config
= config
->next
) {
1274 if (fbconfigs_compatible(&test_config
, config
)
1275 && ((best_config
== NULL
) ||
1276 (fbconfig_compare (&config
, &best_config
) < 0))) {
1277 XVisualInfo visualTemplate
;
1278 XVisualInfo
*newList
;
1281 visualTemplate
.screen
= screen
;
1282 visualTemplate
.visualid
= config
->visualID
;
1283 newList
= XGetVisualInfo(dpy
, VisualScreenMask
| VisualIDMask
,
1284 &visualTemplate
, &i
);
1288 visualList
= newList
;
1289 best_config
= config
;
1294 #ifdef GLX_USE_APPLEGL
1295 if(visualList
&& getenv("LIBGL_DUMP_VISUALID")) {
1296 printf("visualid 0x%lx\n", visualList
[0].visualid
);
1304 _X_EXPORT
const char *
1305 glXQueryExtensionsString(Display
* dpy
, int screen
)
1307 struct glx_screen
*psc
;
1308 struct glx_display
*priv
;
1310 if (GetGLXPrivScreenConfig(dpy
, screen
, &priv
, &psc
) != Success
) {
1314 if (!psc
->effectiveGLXexts
) {
1315 if (!psc
->serverGLXexts
) {
1316 psc
->serverGLXexts
=
1317 __glXQueryServerString(dpy
, priv
->majorOpcode
, screen
,
1321 __glXCalculateUsableExtensions(psc
,
1322 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
1323 (psc
->driScreen
!= NULL
),
1327 priv
->minorVersion
);
1330 return psc
->effectiveGLXexts
;
1333 _X_EXPORT
const char *
1334 glXGetClientString(Display
* dpy
, int name
)
1340 return (__glXGLXClientVendorName
);
1342 return (__glXGLXClientVersion
);
1343 case GLX_EXTENSIONS
:
1344 return (__glXGetClientExtensions());
1350 _X_EXPORT
const char *
1351 glXQueryServerString(Display
* dpy
, int screen
, int name
)
1353 struct glx_screen
*psc
;
1354 struct glx_display
*priv
;
1358 if (GetGLXPrivScreenConfig(dpy
, screen
, &priv
, &psc
) != Success
) {
1364 str
= &priv
->serverGLXvendor
;
1367 str
= &priv
->serverGLXversion
;
1369 case GLX_EXTENSIONS
:
1370 str
= &psc
->serverGLXexts
;
1377 *str
= __glXQueryServerString(dpy
, priv
->majorOpcode
, screen
, name
);
1384 __glXClientInfo(Display
* dpy
, int opcode
)
1386 char *ext_str
= __glXGetClientGLExtensionString();
1387 int size
= strlen(ext_str
) + 1;
1389 xcb_connection_t
*c
= XGetXCBConnection(dpy
);
1390 xcb_glx_client_info(c
,
1391 GLX_MAJOR_VERSION
, GLX_MINOR_VERSION
, size
, ext_str
);
1398 ** EXT_import_context
1402 glXGetCurrentDisplay(void)
1404 struct glx_context
*gc
= __glXGetCurrentContext();
1407 return gc
->currentDpy
;
1411 GLX_ALIAS(Display
*, glXGetCurrentDisplayEXT
, (void), (),
1412 glXGetCurrentDisplay
)
1414 #ifndef GLX_USE_APPLEGL
1415 _X_EXPORT GLXContext
1416 glXImportContextEXT(Display
*dpy
, GLXContextID contextID
)
1418 struct glx_display
*priv
= __glXInitialize(dpy
);
1419 struct glx_screen
*psc
= NULL
;
1420 xGLXQueryContextReply reply
;
1422 struct glx_context
*ctx
;
1424 /* This GLX implementation knows about 5 different properties, so
1425 * allow the server to send us one of each.
1427 int propList
[5 * 2], *pProp
, nPropListBytes
;
1431 struct glx_config
*mode
;
1432 uint32_t fbconfigID
= 0;
1433 uint32_t visualID
= 0;
1434 uint32_t screen
= 0;
1435 Bool got_screen
= False
;
1440 /* The GLX_EXT_import_context spec says:
1442 * "If <contextID> does not refer to a valid context, then a BadContext
1443 * error is generated; if <contextID> refers to direct rendering
1444 * context then no error is generated but glXImportContextEXT returns
1447 * If contextID is None, generate BadContext on the client-side. Other
1448 * sorts of invalid contexts will be detected by the server in the
1449 * __glXIsDirect call.
1451 if (contextID
== None
) {
1452 __glXSendError(dpy
, GLXBadContext
, contextID
, X_GLXIsDirect
, false);
1456 if (__glXIsDirect(dpy
, contextID
))
1459 opcode
= __glXSetupForCommand(dpy
);
1463 /* Send the glXQueryContextInfoEXT request */
1466 if (priv
->majorVersion
> 1 || priv
->minorVersion
>= 3) {
1467 xGLXQueryContextReq
*req
;
1469 GetReq(GLXQueryContext
, req
);
1471 req
->reqType
= opcode
;
1472 req
->glxCode
= X_GLXQueryContext
;
1473 req
->context
= contextID
;
1476 xGLXVendorPrivateReq
*vpreq
;
1477 xGLXQueryContextInfoEXTReq
*req
;
1479 GetReqExtra(GLXVendorPrivate
,
1480 sz_xGLXQueryContextInfoEXTReq
- sz_xGLXVendorPrivateReq
,
1482 req
= (xGLXQueryContextInfoEXTReq
*) vpreq
;
1483 req
->reqType
= opcode
;
1484 req
->glxCode
= X_GLXVendorPrivateWithReply
;
1485 req
->vendorCode
= X_GLXvop_QueryContextInfoEXT
;
1486 req
->context
= contextID
;
1489 _XReply(dpy
, (xReply
*) & reply
, 0, False
);
1491 if (reply
.n
<= __GLX_MAX_CONTEXT_PROPS
)
1492 nPropListBytes
= reply
.n
* 2 * sizeof propList
[0];
1495 _XRead(dpy
, (char *) propList
, nPropListBytes
);
1499 numProps
= nPropListBytes
/ (2 * sizeof(propList
[0]));
1502 renderType
= GLX_RGBA_TYPE
; /* By default, assume RGBA context */
1505 for (i
= 0, pProp
= propList
; i
< numProps
; i
++, pProp
+= 2)
1511 case GLX_SHARE_CONTEXT_EXT
:
1514 case GLX_VISUAL_ID_EXT
:
1515 visualID
= pProp
[1];
1517 case GLX_FBCONFIG_ID
:
1518 fbconfigID
= pProp
[1];
1520 case GLX_RENDER_TYPE
:
1521 renderType
= pProp
[1];
1528 psc
= GetGLXScreenConfigs(dpy
, screen
);
1532 if (fbconfigID
!= 0) {
1533 mode
= glx_config_find_fbconfig(psc
->configs
, fbconfigID
);
1534 } else if (visualID
!= 0) {
1535 mode
= glx_config_find_visual(psc
->visuals
, visualID
);
1541 ctx
= indirect_create_context(psc
, mode
, NULL
, renderType
);
1545 ctx
->xid
= contextID
;
1546 ctx
->imported
= GL_TRUE
;
1547 ctx
->share_xid
= share
;
1549 return (GLXContext
) ctx
;
1555 glXQueryContext(Display
* dpy
, GLXContext ctx_user
, int attribute
, int *value
)
1557 struct glx_context
*ctx
= (struct glx_context
*) ctx_user
;
1559 switch (attribute
) {
1560 case GLX_SHARE_CONTEXT_EXT
:
1561 *value
= ctx
->share_xid
;
1563 case GLX_VISUAL_ID_EXT
:
1564 *value
= ctx
->config
? ctx
->config
->visualID
: None
;
1567 *value
= ctx
->screen
;
1569 case GLX_FBCONFIG_ID
:
1570 *value
= ctx
->config
? ctx
->config
->fbconfigID
: None
;
1572 case GLX_RENDER_TYPE
:
1573 *value
= ctx
->renderType
;
1576 return GLX_BAD_ATTRIBUTE
;
1582 GLX_ALIAS(int, glXQueryContextInfoEXT
,
1583 (Display
* dpy
, GLXContext ctx
, int attribute
, int *value
),
1584 (dpy
, ctx
, attribute
, value
), glXQueryContext
)
1586 _X_EXPORT GLXContextID
glXGetContextIDEXT(const GLXContext ctx_user
)
1588 struct glx_context
*ctx
= (struct glx_context
*) ctx_user
;
1590 return (ctx
== NULL
) ? None
: ctx
->xid
;
1594 glXFreeContextEXT(Display
*dpy
, GLXContext ctx
)
1596 struct glx_context
*gc
= (struct glx_context
*) ctx
;
1598 if (gc
== NULL
|| gc
->xid
== None
)
1601 /* The GLX_EXT_import_context spec says:
1603 * "glXFreeContext does not free the server-side context information or
1604 * the XID associated with the server-side context."
1606 * Don't send any protocol. Just destroy the client-side tracking of the
1607 * context. Also, only release the context structure if it's not current.
1610 if (gc
->currentDpy
) {
1613 gc
->vtable
->destroy(gc
);
1618 _X_EXPORT GLXFBConfig
*
1619 glXChooseFBConfig(Display
* dpy
, int screen
,
1620 const int *attribList
, int *nitems
)
1622 struct glx_config
**config_list
;
1626 config_list
= (struct glx_config
**)
1627 glXGetFBConfigs(dpy
, screen
, &list_size
);
1629 if ((config_list
!= NULL
) && (list_size
> 0) && (attribList
!= NULL
)) {
1630 list_size
= choose_visual(config_list
, list_size
, attribList
, GL_TRUE
);
1631 if (list_size
== 0) {
1637 *nitems
= list_size
;
1638 return (GLXFBConfig
*) config_list
;
1642 _X_EXPORT GLXContext
1643 glXCreateNewContext(Display
* dpy
, GLXFBConfig fbconfig
,
1644 int renderType
, GLXContext shareList
, Bool allowDirect
)
1646 struct glx_config
*config
= (struct glx_config
*) fbconfig
;
1648 return CreateContext(dpy
, config
->fbconfigID
, config
, shareList
,
1649 allowDirect
, X_GLXCreateNewContext
, renderType
,
1654 _X_EXPORT GLXDrawable
1655 glXGetCurrentReadDrawable(void)
1657 struct glx_context
*gc
= __glXGetCurrentContext();
1659 return gc
->currentReadable
;
1663 _X_EXPORT GLXFBConfig
*
1664 glXGetFBConfigs(Display
* dpy
, int screen
, int *nelements
)
1666 struct glx_display
*priv
= __glXInitialize(dpy
);
1667 struct glx_config
**config_list
= NULL
;
1668 struct glx_config
*config
;
1669 unsigned num_configs
= 0;
1673 if (priv
&& (priv
->screens
!= NULL
)
1674 && (screen
>= 0) && (screen
<= ScreenCount(dpy
))
1675 && (priv
->screens
[screen
]->configs
!= NULL
)
1676 && (priv
->screens
[screen
]->configs
->fbconfigID
1677 != (int) GLX_DONT_CARE
)) {
1679 for (config
= priv
->screens
[screen
]->configs
; config
!= NULL
;
1680 config
= config
->next
) {
1681 if (config
->fbconfigID
!= (int) GLX_DONT_CARE
) {
1686 config_list
= malloc(num_configs
* sizeof *config_list
);
1687 if (config_list
!= NULL
) {
1688 *nelements
= num_configs
;
1690 for (config
= priv
->screens
[screen
]->configs
; config
!= NULL
;
1691 config
= config
->next
) {
1692 if (config
->fbconfigID
!= (int) GLX_DONT_CARE
) {
1693 config_list
[i
] = config
;
1700 return (GLXFBConfig
*) config_list
;
1705 glXGetFBConfigAttrib(Display
* dpy
, GLXFBConfig fbconfig
,
1706 int attribute
, int *value
)
1708 struct glx_config
*config
= ValidateGLXFBConfig(dpy
, fbconfig
);
1711 return GLXBadFBConfig
;
1713 return glx_config_get(config
, attribute
, value
);
1717 _X_EXPORT XVisualInfo
*
1718 glXGetVisualFromFBConfig(Display
* dpy
, GLXFBConfig fbconfig
)
1720 XVisualInfo visualTemplate
;
1721 struct glx_config
*config
= (struct glx_config
*) fbconfig
;
1725 ** Get a list of all visuals, return if list is empty
1727 visualTemplate
.visualid
= config
->visualID
;
1728 return XGetVisualInfo(dpy
, VisualIDMask
, &visualTemplate
, &count
);
1731 #ifndef GLX_USE_APPLEGL
1733 ** GLX_SGI_swap_control
1736 __glXSwapIntervalSGI(int interval
)
1738 xGLXVendorPrivateReq
*req
;
1739 struct glx_context
*gc
= __glXGetCurrentContext();
1740 struct glx_screen
*psc
;
1742 CARD32
*interval_ptr
;
1746 return GLX_BAD_CONTEXT
;
1749 if (interval
<= 0) {
1750 return GLX_BAD_VALUE
;
1753 psc
= GetGLXScreenConfigs( gc
->currentDpy
, gc
->screen
);
1755 #ifdef GLX_DIRECT_RENDERING
1756 if (gc
->isDirect
&& psc
&& psc
->driScreen
&&
1757 psc
->driScreen
->setSwapInterval
) {
1758 __GLXDRIdrawable
*pdraw
=
1759 GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
);
1760 psc
->driScreen
->setSwapInterval(pdraw
, interval
);
1765 dpy
= gc
->currentDpy
;
1766 opcode
= __glXSetupForCommand(dpy
);
1771 /* Send the glXSwapIntervalSGI request */
1773 GetReqExtra(GLXVendorPrivate
, sizeof(CARD32
), req
);
1774 req
->reqType
= opcode
;
1775 req
->glxCode
= X_GLXVendorPrivate
;
1776 req
->vendorCode
= X_GLXvop_SwapIntervalSGI
;
1777 req
->contextTag
= gc
->currentContextTag
;
1779 interval_ptr
= (CARD32
*) (req
+ 1);
1780 *interval_ptr
= interval
;
1791 ** GLX_MESA_swap_control
1794 __glXSwapIntervalMESA(unsigned int interval
)
1796 #ifdef GLX_DIRECT_RENDERING
1797 struct glx_context
*gc
= __glXGetCurrentContext();
1799 if (gc
!= NULL
&& gc
->isDirect
) {
1800 struct glx_screen
*psc
;
1802 psc
= GetGLXScreenConfigs( gc
->currentDpy
, gc
->screen
);
1803 if (psc
&& psc
->driScreen
&& psc
->driScreen
->setSwapInterval
) {
1804 __GLXDRIdrawable
*pdraw
=
1805 GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
);
1806 return psc
->driScreen
->setSwapInterval(pdraw
, interval
);
1811 return GLX_BAD_CONTEXT
;
1816 __glXGetSwapIntervalMESA(void)
1818 #ifdef GLX_DIRECT_RENDERING
1819 struct glx_context
*gc
= __glXGetCurrentContext();
1821 if (gc
!= NULL
&& gc
->isDirect
) {
1822 struct glx_screen
*psc
;
1824 psc
= GetGLXScreenConfigs( gc
->currentDpy
, gc
->screen
);
1825 if (psc
&& psc
->driScreen
&& psc
->driScreen
->getSwapInterval
) {
1826 __GLXDRIdrawable
*pdraw
=
1827 GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
);
1828 return psc
->driScreen
->getSwapInterval(pdraw
);
1838 ** GLX_SGI_video_sync
1841 __glXGetVideoSyncSGI(unsigned int *count
)
1843 int64_t ust
, msc
, sbc
;
1845 struct glx_context
*gc
= __glXGetCurrentContext();
1846 struct glx_screen
*psc
;
1847 #ifdef GLX_DIRECT_RENDERING
1848 __GLXDRIdrawable
*pdraw
;
1852 return GLX_BAD_CONTEXT
;
1854 #ifdef GLX_DIRECT_RENDERING
1856 return GLX_BAD_CONTEXT
;
1859 psc
= GetGLXScreenConfigs(gc
->currentDpy
, gc
->screen
);
1860 #ifdef GLX_DIRECT_RENDERING
1861 pdraw
= GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
);
1864 /* FIXME: Looking at the GLX_SGI_video_sync spec in the extension registry,
1865 * FIXME: there should be a GLX encoding for this call. I can find no
1866 * FIXME: documentation for the GLX encoding.
1868 #ifdef GLX_DIRECT_RENDERING
1869 if (psc
&& psc
->driScreen
&& psc
->driScreen
->getDrawableMSC
) {
1870 ret
= psc
->driScreen
->getDrawableMSC(psc
, pdraw
, &ust
, &msc
, &sbc
);
1871 *count
= (unsigned) msc
;
1872 return (ret
== True
) ? 0 : GLX_BAD_CONTEXT
;
1876 return GLX_BAD_CONTEXT
;
1880 __glXWaitVideoSyncSGI(int divisor
, int remainder
, unsigned int *count
)
1882 struct glx_context
*gc
= __glXGetCurrentContext();
1883 struct glx_screen
*psc
;
1884 #ifdef GLX_DIRECT_RENDERING
1885 __GLXDRIdrawable
*pdraw
;
1887 int64_t ust
, msc
, sbc
;
1890 if (divisor
<= 0 || remainder
< 0)
1891 return GLX_BAD_VALUE
;
1894 return GLX_BAD_CONTEXT
;
1896 #ifdef GLX_DIRECT_RENDERING
1898 return GLX_BAD_CONTEXT
;
1901 psc
= GetGLXScreenConfigs( gc
->currentDpy
, gc
->screen
);
1902 #ifdef GLX_DIRECT_RENDERING
1903 pdraw
= GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
);
1906 #ifdef GLX_DIRECT_RENDERING
1907 if (psc
&& psc
->driScreen
&& psc
->driScreen
->waitForMSC
) {
1908 ret
= psc
->driScreen
->waitForMSC(pdraw
, 0, divisor
, remainder
, &ust
, &msc
,
1910 *count
= (unsigned) msc
;
1911 return (ret
== True
) ? 0 : GLX_BAD_CONTEXT
;
1915 return GLX_BAD_CONTEXT
;
1918 #endif /* GLX_USE_APPLEGL */
1921 ** GLX_SGIX_fbconfig
1922 ** Many of these functions are aliased to GLX 1.3 entry points in the
1923 ** GLX_functions table.
1927 GLX_ALIAS(int, glXGetFBConfigAttribSGIX
,
1928 (Display
* dpy
, GLXFBConfigSGIX config
, int attribute
, int *value
),
1929 (dpy
, config
, attribute
, value
), glXGetFBConfigAttrib
)
1931 _X_EXPORT
GLX_ALIAS(GLXFBConfigSGIX
*, glXChooseFBConfigSGIX
,
1932 (Display
* dpy
, int screen
, int *attrib_list
,
1933 int *nelements
), (dpy
, screen
, attrib_list
, nelements
),
1936 _X_EXPORT
GLX_ALIAS(XVisualInfo
*, glXGetVisualFromFBConfigSGIX
,
1937 (Display
* dpy
, GLXFBConfigSGIX config
),
1938 (dpy
, config
), glXGetVisualFromFBConfig
)
1941 glXCreateGLXPixmapWithConfigSGIX(Display
* dpy
,
1942 GLXFBConfigSGIX fbconfig
,
1945 #ifndef GLX_USE_APPLEGL
1946 xGLXVendorPrivateWithReplyReq
*vpreq
;
1947 xGLXCreateGLXPixmapWithConfigSGIXReq
*req
;
1948 GLXPixmap xid
= None
;
1950 struct glx_screen
*psc
;
1952 struct glx_config
*config
= (struct glx_config
*) fbconfig
;
1955 if ((dpy
== NULL
) || (config
== NULL
)) {
1958 #ifdef GLX_USE_APPLEGL
1959 if(apple_glx_pixmap_create(dpy
, config
->screen
, pixmap
, config
))
1964 psc
= GetGLXScreenConfigs(dpy
, config
->screen
);
1966 && __glXExtensionBitIsEnabled(psc
, SGIX_fbconfig_bit
)) {
1967 opcode
= __glXSetupForCommand(dpy
);
1972 /* Send the glXCreateGLXPixmapWithConfigSGIX request */
1974 GetReqExtra(GLXVendorPrivateWithReply
,
1975 sz_xGLXCreateGLXPixmapWithConfigSGIXReq
-
1976 sz_xGLXVendorPrivateWithReplyReq
, vpreq
);
1977 req
= (xGLXCreateGLXPixmapWithConfigSGIXReq
*) vpreq
;
1978 req
->reqType
= opcode
;
1979 req
->glxCode
= X_GLXVendorPrivateWithReply
;
1980 req
->vendorCode
= X_GLXvop_CreateGLXPixmapWithConfigSGIX
;
1981 req
->screen
= config
->screen
;
1982 req
->fbconfig
= config
->fbconfigID
;
1983 req
->pixmap
= pixmap
;
1984 req
->glxpixmap
= xid
= XAllocID(dpy
);
1993 _X_EXPORT GLXContext
1994 glXCreateContextWithConfigSGIX(Display
* dpy
,
1995 GLXFBConfigSGIX fbconfig
, int renderType
,
1996 GLXContext shareList
, Bool allowDirect
)
1998 GLXContext gc
= NULL
;
1999 struct glx_config
*config
= (struct glx_config
*) fbconfig
;
2000 struct glx_screen
*psc
;
2003 if ((dpy
== NULL
) || (config
== NULL
)) {
2007 psc
= GetGLXScreenConfigs(dpy
, config
->screen
);
2009 && __glXExtensionBitIsEnabled(psc
, SGIX_fbconfig_bit
)) {
2010 gc
= CreateContext(dpy
, config
->fbconfigID
, config
, shareList
,
2012 X_GLXvop_CreateContextWithConfigSGIX
, renderType
,
2020 _X_EXPORT GLXFBConfigSGIX
2021 glXGetFBConfigFromVisualSGIX(Display
* dpy
, XVisualInfo
* vis
)
2023 struct glx_display
*priv
;
2024 struct glx_screen
*psc
= NULL
;
2026 if ((GetGLXPrivScreenConfig(dpy
, vis
->screen
, &priv
, &psc
) == Success
)
2027 && __glXExtensionBitIsEnabled(psc
, SGIX_fbconfig_bit
)
2028 && (psc
->configs
->fbconfigID
!= (int) GLX_DONT_CARE
)) {
2029 return (GLXFBConfigSGIX
) glx_config_find_visual(psc
->configs
,
2036 #ifndef GLX_USE_APPLEGL
2038 ** GLX_SGIX_swap_group
2041 __glXJoinSwapGroupSGIX(Display
* dpy
, GLXDrawable drawable
,
2051 ** GLX_SGIX_swap_barrier
2054 __glXBindSwapBarrierSGIX(Display
* dpy
, GLXDrawable drawable
, int barrier
)
2062 __glXQueryMaxSwapBarriersSGIX(Display
* dpy
, int screen
, int *max
)
2072 ** GLX_OML_sync_control
2075 __glXGetSyncValuesOML(Display
* dpy
, GLXDrawable drawable
,
2076 int64_t * ust
, int64_t * msc
, int64_t * sbc
)
2078 struct glx_display
* const priv
= __glXInitialize(dpy
);
2080 #ifdef GLX_DIRECT_RENDERING
2081 __GLXDRIdrawable
*pdraw
;
2083 struct glx_screen
*psc
;
2088 #ifdef GLX_DIRECT_RENDERING
2089 pdraw
= GetGLXDRIDrawable(dpy
, drawable
);
2090 psc
= pdraw
? pdraw
->psc
: NULL
;
2091 if (pdraw
&& psc
->driScreen
->getDrawableMSC
) {
2092 ret
= psc
->driScreen
->getDrawableMSC(psc
, pdraw
, ust
, msc
, sbc
);
2100 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
2102 __glxGetMscRate(struct glx_screen
*psc
,
2103 int32_t * numerator
, int32_t * denominator
)
2106 XF86VidModeModeLine mode_line
;
2110 if (XF86VidModeQueryVersion(psc
->dpy
, &i
, &i
) &&
2111 XF86VidModeGetModeLine(psc
->dpy
, psc
->scr
, &dot_clock
, &mode_line
)) {
2112 unsigned n
= dot_clock
* 1000;
2113 unsigned d
= mode_line
.vtotal
* mode_line
.htotal
;
2115 # define V_INTERLACE 0x010
2116 # define V_DBLSCAN 0x020
2118 if (mode_line
.flags
& V_INTERLACE
)
2120 else if (mode_line
.flags
& V_DBLSCAN
)
2123 /* The OML_sync_control spec requires that if the refresh rate is a
2124 * whole number, that the returned numerator be equal to the refresh
2125 * rate and the denominator be 1.
2133 static const unsigned f
[] = { 13, 11, 7, 5, 3, 2, 0 };
2135 /* This is a poor man's way to reduce a fraction. It's far from
2136 * perfect, but it will work well enough for this situation.
2139 for (i
= 0; f
[i
] != 0; i
++) {
2140 while (n
% f
[i
] == 0 && d
% f
[i
] == 0) {
2160 * Determine the refresh rate of the specified drawable and display.
2162 * \param dpy Display whose refresh rate is to be determined.
2163 * \param drawable Drawable whose refresh rate is to be determined.
2164 * \param numerator Numerator of the refresh rate.
2165 * \param demoninator Denominator of the refresh rate.
2166 * \return If the refresh rate for the specified display and drawable could
2167 * be calculated, True is returned. Otherwise False is returned.
2169 * \note This function is implemented entirely client-side. A lot of other
2170 * functionality is required to export GLX_OML_sync_control, so on
2171 * XFree86 this function can be called for direct-rendering contexts
2172 * when GLX_OML_sync_control appears in the client extension string.
2176 __glXGetMscRateOML(Display
* dpy
, GLXDrawable drawable
,
2177 int32_t * numerator
, int32_t * denominator
)
2179 #if defined( GLX_DIRECT_RENDERING ) && defined( XF86VIDMODE )
2180 __GLXDRIdrawable
*draw
= GetGLXDRIDrawable(dpy
, drawable
);
2185 return __glxGetMscRate(draw
->psc
, numerator
, denominator
);
2197 __glXSwapBuffersMscOML(Display
* dpy
, GLXDrawable drawable
,
2198 int64_t target_msc
, int64_t divisor
, int64_t remainder
)
2200 struct glx_context
*gc
= __glXGetCurrentContext();
2201 #ifdef GLX_DIRECT_RENDERING
2202 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
);
2203 struct glx_screen
*psc
= pdraw
? pdraw
->psc
: NULL
;
2206 if (!gc
) /* no GLX for this */
2209 #ifdef GLX_DIRECT_RENDERING
2210 if (!pdraw
|| !gc
->isDirect
)
2214 /* The OML_sync_control spec says these should "generate a GLX_BAD_VALUE
2215 * error", but it also says "It [glXSwapBuffersMscOML] will return a value
2216 * of -1 if the function failed because of errors detected in the input
2219 if (divisor
< 0 || remainder
< 0 || target_msc
< 0)
2221 if (divisor
> 0 && remainder
>= divisor
)
2224 if (target_msc
== 0 && divisor
== 0 && remainder
== 0)
2227 #ifdef GLX_DIRECT_RENDERING
2228 if (psc
->driScreen
&& psc
->driScreen
->swapBuffers
)
2229 return (*psc
->driScreen
->swapBuffers
)(pdraw
, target_msc
, divisor
,
2238 __glXWaitForMscOML(Display
* dpy
, GLXDrawable drawable
,
2239 int64_t target_msc
, int64_t divisor
,
2240 int64_t remainder
, int64_t * ust
,
2241 int64_t * msc
, int64_t * sbc
)
2243 #ifdef GLX_DIRECT_RENDERING
2244 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
);
2245 struct glx_screen
*psc
= pdraw
? pdraw
->psc
: NULL
;
2250 /* The OML_sync_control spec says these should "generate a GLX_BAD_VALUE
2251 * error", but the return type in the spec is Bool.
2253 if (divisor
< 0 || remainder
< 0 || target_msc
< 0)
2255 if (divisor
> 0 && remainder
>= divisor
)
2258 #ifdef GLX_DIRECT_RENDERING
2259 if (pdraw
&& psc
->driScreen
&& psc
->driScreen
->waitForMSC
) {
2260 ret
= psc
->driScreen
->waitForMSC(pdraw
, target_msc
, divisor
, remainder
,
2271 __glXWaitForSbcOML(Display
* dpy
, GLXDrawable drawable
,
2272 int64_t target_sbc
, int64_t * ust
,
2273 int64_t * msc
, int64_t * sbc
)
2275 #ifdef GLX_DIRECT_RENDERING
2276 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
);
2277 struct glx_screen
*psc
= pdraw
? pdraw
->psc
: NULL
;
2281 /* The OML_sync_control spec says this should "generate a GLX_BAD_VALUE
2282 * error", but the return type in the spec is Bool.
2287 #ifdef GLX_DIRECT_RENDERING
2288 if (pdraw
&& psc
->driScreen
&& psc
->driScreen
->waitForSBC
) {
2289 ret
= psc
->driScreen
->waitForSBC(pdraw
, target_sbc
, ust
, msc
, sbc
);
2301 * Mesa extension stubs. These will help reduce portability problems.
2306 * Release all buffers associated with the specified GLX drawable.
2309 * This function was intended for stand-alone Mesa. The issue there is that
2310 * the library doesn't get any notification when a window is closed. In
2311 * DRI there is a similar but slightly different issue. When GLX 1.3 is
2312 * supported, there are 3 different functions to destroy a drawable. It
2313 * should be possible to create GLX protocol (or have it determine which
2314 * protocol to use based on the type of the drawable) to have one function
2315 * do the work of 3. For the direct-rendering case, this function could
2316 * just call the driver's \c __DRIdrawableRec::destroyDrawable function.
2317 * This would reduce the frequency with which \c __driGarbageCollectDrawables
2318 * would need to be used. This really should be done as part of the new DRI
2321 * \sa http://oss.sgi.com/projects/ogl-sample/registry/MESA/release_buffers.txt
2322 * __driGarbageCollectDrawables
2323 * glXDestroyGLXPixmap
2324 * glXDestroyPbuffer glXDestroyPixmap glXDestroyWindow
2325 * glXDestroyGLXPbufferSGIX glXDestroyGLXVideoSourceSGIX
2328 __glXReleaseBuffersMESA(Display
* dpy
, GLXDrawable d
)
2337 glXCreateGLXPixmapMESA(Display
* dpy
, XVisualInfo
* visual
,
2338 Pixmap pixmap
, Colormap cmap
)
2351 * GLX_MESA_copy_sub_buffer
2353 #define X_GLXvop_CopySubBufferMESA 5154 /* temporary */
2355 __glXCopySubBufferMESA(Display
* dpy
, GLXDrawable drawable
,
2356 int x
, int y
, int width
, int height
)
2358 xGLXVendorPrivateReq
*req
;
2359 struct glx_context
*gc
;
2361 CARD32
*drawable_ptr
;
2362 INT32
*x_ptr
, *y_ptr
, *w_ptr
, *h_ptr
;
2365 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
2366 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
);
2367 if (pdraw
!= NULL
) {
2368 struct glx_screen
*psc
= pdraw
->psc
;
2369 if (psc
->driScreen
->copySubBuffer
!= NULL
) {
2370 (*psc
->driScreen
->copySubBuffer
) (pdraw
, x
, y
, width
, height
, True
);
2377 opcode
= __glXSetupForCommand(dpy
);
2382 ** The calling thread may or may not have a current context. If it
2383 ** does, send the context tag so the server can do a flush.
2385 gc
= __glXGetCurrentContext();
2386 if ((gc
!= NULL
) && (dpy
== gc
->currentDpy
) &&
2387 ((drawable
== gc
->currentDrawable
) ||
2388 (drawable
== gc
->currentReadable
))) {
2389 tag
= gc
->currentContextTag
;
2396 GetReqExtra(GLXVendorPrivate
, sizeof(CARD32
) + sizeof(INT32
) * 4, req
);
2397 req
->reqType
= opcode
;
2398 req
->glxCode
= X_GLXVendorPrivate
;
2399 req
->vendorCode
= X_GLXvop_CopySubBufferMESA
;
2400 req
->contextTag
= tag
;
2402 drawable_ptr
= (CARD32
*) (req
+ 1);
2403 x_ptr
= (INT32
*) (drawable_ptr
+ 1);
2404 y_ptr
= (INT32
*) (drawable_ptr
+ 2);
2405 w_ptr
= (INT32
*) (drawable_ptr
+ 3);
2406 h_ptr
= (INT32
*) (drawable_ptr
+ 4);
2408 *drawable_ptr
= drawable
;
2420 __glXBindTexImageEXT(Display
* dpy
,
2421 GLXDrawable drawable
, int buffer
, const int *attrib_list
)
2423 struct glx_context
*gc
= __glXGetCurrentContext();
2425 if (gc
== NULL
|| gc
->vtable
->bind_tex_image
== NULL
)
2428 gc
->vtable
->bind_tex_image(dpy
, drawable
, buffer
, attrib_list
);
2432 __glXReleaseTexImageEXT(Display
* dpy
, GLXDrawable drawable
, int buffer
)
2434 struct glx_context
*gc
= __glXGetCurrentContext();
2436 if (gc
== NULL
|| gc
->vtable
->release_tex_image
== NULL
)
2439 gc
->vtable
->release_tex_image(dpy
, drawable
, buffer
);
2444 #endif /* GLX_USE_APPLEGL */
2447 * \c strdup is actually not a standard ANSI C or POSIX routine.
2448 * Irix will not define it if ANSI mode is in effect.
2453 __glXstrdup(const char *str
)
2456 copy
= malloc(strlen(str
) + 1);
2464 ** glXGetProcAddress support
2467 struct name_address_pair
2473 #define GLX_FUNCTION(f) { # f, (GLvoid *) f }
2474 #define GLX_FUNCTION2(n,f) { # n, (GLvoid *) f }
2476 static const struct name_address_pair GLX_functions
[] = {
2477 /*** GLX_VERSION_1_0 ***/
2478 GLX_FUNCTION(glXChooseVisual
),
2479 GLX_FUNCTION(glXCopyContext
),
2480 GLX_FUNCTION(glXCreateContext
),
2481 GLX_FUNCTION(glXCreateGLXPixmap
),
2482 GLX_FUNCTION(glXDestroyContext
),
2483 GLX_FUNCTION(glXDestroyGLXPixmap
),
2484 GLX_FUNCTION(glXGetConfig
),
2485 GLX_FUNCTION(glXGetCurrentContext
),
2486 GLX_FUNCTION(glXGetCurrentDrawable
),
2487 GLX_FUNCTION(glXIsDirect
),
2488 GLX_FUNCTION(glXMakeCurrent
),
2489 GLX_FUNCTION(glXQueryExtension
),
2490 GLX_FUNCTION(glXQueryVersion
),
2491 GLX_FUNCTION(glXSwapBuffers
),
2492 GLX_FUNCTION(glXUseXFont
),
2493 GLX_FUNCTION(glXWaitGL
),
2494 GLX_FUNCTION(glXWaitX
),
2496 /*** GLX_VERSION_1_1 ***/
2497 GLX_FUNCTION(glXGetClientString
),
2498 GLX_FUNCTION(glXQueryExtensionsString
),
2499 GLX_FUNCTION(glXQueryServerString
),
2501 /*** GLX_VERSION_1_2 ***/
2502 GLX_FUNCTION(glXGetCurrentDisplay
),
2504 /*** GLX_VERSION_1_3 ***/
2505 GLX_FUNCTION(glXChooseFBConfig
),
2506 GLX_FUNCTION(glXCreateNewContext
),
2507 GLX_FUNCTION(glXCreatePbuffer
),
2508 GLX_FUNCTION(glXCreatePixmap
),
2509 GLX_FUNCTION(glXCreateWindow
),
2510 GLX_FUNCTION(glXDestroyPbuffer
),
2511 GLX_FUNCTION(glXDestroyPixmap
),
2512 GLX_FUNCTION(glXDestroyWindow
),
2513 GLX_FUNCTION(glXGetCurrentReadDrawable
),
2514 GLX_FUNCTION(glXGetFBConfigAttrib
),
2515 GLX_FUNCTION(glXGetFBConfigs
),
2516 GLX_FUNCTION(glXGetSelectedEvent
),
2517 GLX_FUNCTION(glXGetVisualFromFBConfig
),
2518 GLX_FUNCTION(glXMakeContextCurrent
),
2519 GLX_FUNCTION(glXQueryContext
),
2520 GLX_FUNCTION(glXQueryDrawable
),
2521 GLX_FUNCTION(glXSelectEvent
),
2523 #ifndef GLX_USE_APPLEGL
2524 /*** GLX_SGI_swap_control ***/
2525 GLX_FUNCTION2(glXSwapIntervalSGI
, __glXSwapIntervalSGI
),
2527 /*** GLX_SGI_video_sync ***/
2528 GLX_FUNCTION2(glXGetVideoSyncSGI
, __glXGetVideoSyncSGI
),
2529 GLX_FUNCTION2(glXWaitVideoSyncSGI
, __glXWaitVideoSyncSGI
),
2531 /*** GLX_SGI_make_current_read ***/
2532 GLX_FUNCTION2(glXMakeCurrentReadSGI
, glXMakeContextCurrent
),
2533 GLX_FUNCTION2(glXGetCurrentReadDrawableSGI
, glXGetCurrentReadDrawable
),
2535 /*** GLX_EXT_import_context ***/
2536 GLX_FUNCTION(glXFreeContextEXT
),
2537 GLX_FUNCTION(glXGetContextIDEXT
),
2538 GLX_FUNCTION2(glXGetCurrentDisplayEXT
, glXGetCurrentDisplay
),
2539 GLX_FUNCTION(glXImportContextEXT
),
2540 GLX_FUNCTION2(glXQueryContextInfoEXT
, glXQueryContext
),
2543 /*** GLX_SGIX_fbconfig ***/
2544 GLX_FUNCTION2(glXGetFBConfigAttribSGIX
, glXGetFBConfigAttrib
),
2545 GLX_FUNCTION2(glXChooseFBConfigSGIX
, glXChooseFBConfig
),
2546 GLX_FUNCTION(glXCreateGLXPixmapWithConfigSGIX
),
2547 GLX_FUNCTION(glXCreateContextWithConfigSGIX
),
2548 GLX_FUNCTION2(glXGetVisualFromFBConfigSGIX
, glXGetVisualFromFBConfig
),
2549 GLX_FUNCTION(glXGetFBConfigFromVisualSGIX
),
2551 #ifndef GLX_USE_APPLEGL
2552 /*** GLX_SGIX_pbuffer ***/
2553 GLX_FUNCTION(glXCreateGLXPbufferSGIX
),
2554 GLX_FUNCTION(glXDestroyGLXPbufferSGIX
),
2555 GLX_FUNCTION(glXQueryGLXPbufferSGIX
),
2556 GLX_FUNCTION(glXSelectEventSGIX
),
2557 GLX_FUNCTION(glXGetSelectedEventSGIX
),
2559 /*** GLX_SGIX_swap_group ***/
2560 GLX_FUNCTION2(glXJoinSwapGroupSGIX
, __glXJoinSwapGroupSGIX
),
2562 /*** GLX_SGIX_swap_barrier ***/
2563 GLX_FUNCTION2(glXBindSwapBarrierSGIX
, __glXBindSwapBarrierSGIX
),
2564 GLX_FUNCTION2(glXQueryMaxSwapBarriersSGIX
, __glXQueryMaxSwapBarriersSGIX
),
2566 /*** GLX_MESA_copy_sub_buffer ***/
2567 GLX_FUNCTION2(glXCopySubBufferMESA
, __glXCopySubBufferMESA
),
2569 /*** GLX_MESA_pixmap_colormap ***/
2570 GLX_FUNCTION(glXCreateGLXPixmapMESA
),
2572 /*** GLX_MESA_release_buffers ***/
2573 GLX_FUNCTION2(glXReleaseBuffersMESA
, __glXReleaseBuffersMESA
),
2575 /*** GLX_MESA_swap_control ***/
2576 GLX_FUNCTION2(glXSwapIntervalMESA
, __glXSwapIntervalMESA
),
2577 GLX_FUNCTION2(glXGetSwapIntervalMESA
, __glXGetSwapIntervalMESA
),
2580 /*** GLX_ARB_get_proc_address ***/
2581 GLX_FUNCTION(glXGetProcAddressARB
),
2584 GLX_FUNCTION2(glXGetProcAddress
, glXGetProcAddressARB
),
2586 #ifndef GLX_USE_APPLEGL
2587 /*** GLX_OML_sync_control ***/
2588 GLX_FUNCTION2(glXWaitForSbcOML
, __glXWaitForSbcOML
),
2589 GLX_FUNCTION2(glXWaitForMscOML
, __glXWaitForMscOML
),
2590 GLX_FUNCTION2(glXSwapBuffersMscOML
, __glXSwapBuffersMscOML
),
2591 GLX_FUNCTION2(glXGetMscRateOML
, __glXGetMscRateOML
),
2592 GLX_FUNCTION2(glXGetSyncValuesOML
, __glXGetSyncValuesOML
),
2594 /*** GLX_EXT_texture_from_pixmap ***/
2595 GLX_FUNCTION2(glXBindTexImageEXT
, __glXBindTexImageEXT
),
2596 GLX_FUNCTION2(glXReleaseTexImageEXT
, __glXReleaseTexImageEXT
),
2599 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
2600 /*** DRI configuration ***/
2601 GLX_FUNCTION(glXGetScreenDriver
),
2602 GLX_FUNCTION(glXGetDriverConfig
),
2605 /*** GLX_ARB_create_context and GLX_ARB_create_context_profile ***/
2606 GLX_FUNCTION(glXCreateContextAttribsARB
),
2608 /*** GLX_MESA_query_renderer ***/
2609 GLX_FUNCTION(glXQueryRendererIntegerMESA
),
2610 GLX_FUNCTION(glXQueryRendererStringMESA
),
2611 GLX_FUNCTION(glXQueryCurrentRendererIntegerMESA
),
2612 GLX_FUNCTION(glXQueryCurrentRendererStringMESA
),
2614 {NULL
, NULL
} /* end of list */
2617 static const GLvoid
*
2618 get_glx_proc_address(const char *funcName
)
2622 /* try static functions */
2623 for (i
= 0; GLX_functions
[i
].Name
; i
++) {
2624 if (strcmp(GLX_functions
[i
].Name
, funcName
) == 0)
2625 return GLX_functions
[i
].Address
;
2632 * Get the address of a named GL function. This is the pre-GLX 1.4 name for
2633 * \c glXGetProcAddress.
2635 * \param procName Name of a GL or GLX function.
2636 * \returns A pointer to the named function
2638 * \sa glXGetProcAddress
2640 _X_EXPORT
void (*glXGetProcAddressARB(const GLubyte
* procName
)) (void)
2642 typedef void (*gl_function
) (void);
2646 /* Search the table of GLX and internal functions first. If that
2647 * fails and the supplied name could be a valid core GL name, try
2648 * searching the core GL function table. This check is done to prevent
2649 * DRI based drivers from searching the core GL function table for
2650 * internal API functions.
2652 f
= (gl_function
) get_glx_proc_address((const char *) procName
);
2653 if ((f
== NULL
) && (procName
[0] == 'g') && (procName
[1] == 'l')
2654 && (procName
[2] != 'X')) {
2655 #ifdef GLX_SHARED_GLAPI
2656 f
= (gl_function
) __indirect_get_proc_address((const char *) procName
);
2659 f
= (gl_function
) _glapi_get_proc_address((const char *) procName
);
2661 struct glx_context
*gc
= __glXGetCurrentContext();
2663 if (gc
!= NULL
&& gc
->vtable
->get_proc_address
!= NULL
)
2664 f
= gc
->vtable
->get_proc_address((const char *) procName
);
2671 * Get the address of a named GL function. This is the GLX 1.4 name for
2672 * \c glXGetProcAddressARB.
2674 * \param procName Name of a GL or GLX function.
2675 * \returns A pointer to the named function
2677 * \sa glXGetProcAddressARB
2679 _X_EXPORT
void (*glXGetProcAddress(const GLubyte
* procName
)) (void)
2680 #if defined(__GNUC__) && !defined(GLX_ALIAS_UNSUPPORTED)
2681 __attribute__ ((alias("glXGetProcAddressARB")));
2684 return glXGetProcAddressARB(procName
);
2686 #endif /* __GNUC__ */
2689 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
2691 * Get the unadjusted system time (UST). Currently, the UST is measured in
2692 * microseconds since Epoc. The actual resolution of the UST may vary from
2693 * system to system, and the units may vary from release to release.
2694 * Drivers should not call this function directly. They should instead use
2695 * \c glXGetProcAddress to obtain a pointer to the function.
2697 * \param ust Location to store the 64-bit UST
2698 * \returns Zero on success or a negative errno value on failure.
2700 * \sa glXGetProcAddress, PFNGLXGETUSTPROC
2702 * \since Internal API version 20030317.
2705 __glXGetUST(int64_t * ust
)
2713 if (gettimeofday(&tv
, NULL
) == 0) {
2714 ust
[0] = (tv
.tv_sec
* 1000000) + tv
.tv_usec
;
2721 #endif /* GLX_DIRECT_RENDERING */