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"
46 #include "util/debug.h"
50 #include <X11/extensions/xf86vmode.h>
55 #include <X11/Xlib-xcb.h>
58 #include "GL/mesa_glinterop.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 /* GLX_EXT_no_config_context supports any render type */
243 switch (renderType
) {
245 return (config
->renderType
& GLX_RGBA_BIT
) != 0;
246 case GLX_COLOR_INDEX_TYPE
:
247 return (config
->renderType
& GLX_COLOR_INDEX_BIT
) != 0;
248 case GLX_RGBA_FLOAT_TYPE_ARB
:
249 return (config
->renderType
& GLX_RGBA_FLOAT_BIT_ARB
) != 0;
250 case GLX_RGBA_UNSIGNED_FLOAT_TYPE_EXT
:
251 return (config
->renderType
& GLX_RGBA_UNSIGNED_FLOAT_BIT_EXT
) != 0;
259 glx_context_init(struct glx_context
*gc
,
260 struct glx_screen
*psc
, struct glx_config
*config
)
262 gc
->majorOpcode
= __glXSetupForCommand(psc
->display
->dpy
);
263 if (!gc
->majorOpcode
)
266 gc
->screen
= psc
->scr
;
269 gc
->isDirect
= GL_TRUE
;
270 gc
->currentContextTag
= -1;
277 * Create a new context.
279 * \param renderType For FBConfigs, what is the rendering type?
283 CreateContext(Display
*dpy
, int generic_id
, struct glx_config
*config
,
284 GLXContext shareList_user
, Bool allowDirect
,
285 unsigned code
, int renderType
, int screen
)
287 struct glx_context
*gc
;
288 struct glx_screen
*psc
;
289 struct glx_context
*shareList
= (struct glx_context
*) shareList_user
;
293 psc
= GetGLXScreenConfigs(dpy
, screen
);
297 if (generic_id
== None
)
301 #ifdef GLX_USE_APPLEGL
302 gc
= applegl_create_context(psc
, config
, shareList
, renderType
);
304 if (allowDirect
&& psc
->vtable
->create_context
)
305 gc
= psc
->vtable
->create_context(psc
, config
, shareList
, renderType
);
307 gc
= indirect_create_context(psc
, config
, shareList
, renderType
);
314 case X_GLXCreateContext
: {
315 xGLXCreateContextReq
*req
;
317 /* Send the glXCreateContext request */
318 GetReq(GLXCreateContext
, req
);
319 req
->reqType
= gc
->majorOpcode
;
320 req
->glxCode
= X_GLXCreateContext
;
321 req
->context
= gc
->xid
= XAllocID(dpy
);
322 req
->visual
= generic_id
;
323 req
->screen
= screen
;
324 req
->shareList
= shareList
? shareList
->xid
: None
;
325 req
->isDirect
= gc
->isDirect
;
329 case X_GLXCreateNewContext
: {
330 xGLXCreateNewContextReq
*req
;
332 /* Send the glXCreateNewContext request */
333 GetReq(GLXCreateNewContext
, req
);
334 req
->reqType
= gc
->majorOpcode
;
335 req
->glxCode
= X_GLXCreateNewContext
;
336 req
->context
= gc
->xid
= XAllocID(dpy
);
337 req
->fbconfig
= generic_id
;
338 req
->screen
= screen
;
339 req
->renderType
= renderType
;
340 req
->shareList
= shareList
? shareList
->xid
: None
;
341 req
->isDirect
= gc
->isDirect
;
345 case X_GLXvop_CreateContextWithConfigSGIX
: {
346 xGLXVendorPrivateWithReplyReq
*vpreq
;
347 xGLXCreateContextWithConfigSGIXReq
*req
;
349 /* Send the glXCreateNewContext request */
350 GetReqExtra(GLXVendorPrivateWithReply
,
351 sz_xGLXCreateContextWithConfigSGIXReq
-
352 sz_xGLXVendorPrivateWithReplyReq
, vpreq
);
353 req
= (xGLXCreateContextWithConfigSGIXReq
*) vpreq
;
354 req
->reqType
= gc
->majorOpcode
;
355 req
->glxCode
= X_GLXVendorPrivateWithReply
;
356 req
->vendorCode
= X_GLXvop_CreateContextWithConfigSGIX
;
357 req
->context
= gc
->xid
= XAllocID(dpy
);
358 req
->fbconfig
= generic_id
;
359 req
->screen
= screen
;
360 req
->renderType
= renderType
;
361 req
->shareList
= shareList
? shareList
->xid
: None
;
362 req
->isDirect
= gc
->isDirect
;
367 /* What to do here? This case is the sign of an internal error. It
368 * should never be reachable.
376 gc
->share_xid
= shareList
? shareList
->xid
: None
;
377 gc
->imported
= GL_FALSE
;
379 return (GLXContext
) gc
;
382 _GLX_PUBLIC GLXContext
383 glXCreateContext(Display
* dpy
, XVisualInfo
* vis
,
384 GLXContext shareList
, Bool allowDirect
)
386 struct glx_config
*config
= NULL
;
387 int renderType
= GLX_RGBA_TYPE
;
389 #if defined(GLX_DIRECT_RENDERING) || defined(GLX_USE_APPLEGL)
390 struct glx_screen
*const psc
= GetGLXScreenConfigs(dpy
, vis
->screen
);
393 config
= glx_config_find_visual(psc
->visuals
, vis
->visualid
);
395 if (config
== NULL
) {
396 __glXSendError(dpy
, BadValue
, vis
->visualid
, X_GLXCreateContext
, True
);
400 /* Choose the context render type based on DRI config values. It is
401 * unusual to set this type from config, but we have no other choice, as
402 * this old API does not provide renderType parameter.
404 if (config
->renderType
& GLX_RGBA_FLOAT_BIT_ARB
) {
405 renderType
= GLX_RGBA_FLOAT_TYPE_ARB
;
406 } else if (config
->renderType
& GLX_RGBA_UNSIGNED_FLOAT_BIT_EXT
) {
407 renderType
= GLX_RGBA_UNSIGNED_FLOAT_TYPE_EXT
;
408 } else if (config
->renderType
& GLX_RGBA_BIT
) {
409 renderType
= GLX_RGBA_TYPE
;
410 } else if (config
->renderType
& GLX_COLOR_INDEX_BIT
) {
411 renderType
= GLX_COLOR_INDEX_TYPE
;
412 } else if (config
->rgbMode
) {
413 /* If we're here, then renderType is not set correctly. Let's use a
414 * safeguard - any TrueColor or DirectColor mode is RGB mode. Such
415 * default value is needed by old DRI drivers, which didn't set
416 * renderType correctly as the value was just ignored.
418 renderType
= GLX_RGBA_TYPE
;
420 /* Safeguard - only one option left, all non-RGB modes are indexed
421 * modes. Again, this allows drivers with invalid renderType to work
424 renderType
= GLX_COLOR_INDEX_TYPE
;
428 return CreateContext(dpy
, vis
->visualid
, config
, shareList
, allowDirect
,
429 X_GLXCreateContext
, renderType
, vis
->screen
);
433 glx_send_destroy_context(Display
*dpy
, XID xid
)
435 CARD8 opcode
= __glXSetupForCommand(dpy
);
436 xGLXDestroyContextReq
*req
;
439 GetReq(GLXDestroyContext
, req
);
440 req
->reqType
= opcode
;
441 req
->glxCode
= X_GLXDestroyContext
;
448 ** Destroy the named context
452 glXDestroyContext(Display
* dpy
, GLXContext ctx
)
454 struct glx_context
*gc
= (struct glx_context
*) ctx
;
456 if (gc
== NULL
|| gc
->xid
== None
)
461 glx_send_destroy_context(dpy
, gc
->xid
);
463 if (gc
->currentDpy
) {
464 /* This context is bound to some thread. According to the man page,
465 * we should not actually delete the context until it's unbound.
466 * Note that we set gc->xid = None above. In MakeContextCurrent()
467 * we check for that and delete the context there.
471 gc
->vtable
->destroy(gc
);
477 ** Return the major and minor version #s for the GLX extension
480 glXQueryVersion(Display
* dpy
, int *major
, int *minor
)
482 struct glx_display
*priv
;
484 /* Init the extension. This fetches the major and minor version. */
485 priv
= __glXInitialize(dpy
);
490 *major
= priv
->majorVersion
;
492 *minor
= priv
->minorVersion
;
497 ** Query the existence of the GLX extension
500 glXQueryExtension(Display
* dpy
, int *errorBase
, int *eventBase
)
502 int major_op
, erb
, evb
;
505 rv
= XQueryExtension(dpy
, GLX_EXTENSION_NAME
, &major_op
, &evb
, &erb
);
516 ** Put a barrier in the token stream that forces the GL to finish its
517 ** work before X can proceed.
522 struct glx_context
*gc
= __glXGetCurrentContext();
524 if (gc
->vtable
->wait_gl
)
525 gc
->vtable
->wait_gl(gc
);
529 ** Put a barrier in the token stream that forces X to finish its
530 ** work before GL can proceed.
535 struct glx_context
*gc
= __glXGetCurrentContext();
537 if (gc
->vtable
->wait_x
)
538 gc
->vtable
->wait_x(gc
);
542 glXUseXFont(Font font
, int first
, int count
, int listBase
)
544 struct glx_context
*gc
= __glXGetCurrentContext();
546 if (gc
->vtable
->use_x_font
)
547 gc
->vtable
->use_x_font(gc
, font
, first
, count
, listBase
);
550 /************************************************************************/
553 ** Copy the source context to the destination context using the
557 glXCopyContext(Display
* dpy
, GLXContext source_user
,
558 GLXContext dest_user
, unsigned long mask
)
560 struct glx_context
*source
= (struct glx_context
*) source_user
;
561 struct glx_context
*dest
= (struct glx_context
*) dest_user
;
562 #ifdef GLX_USE_APPLEGL
563 struct glx_context
*gc
= __glXGetCurrentContext();
567 if(apple_glx_copy_context(gc
->driContext
, source
->driContext
, dest
->driContext
,
568 mask
, &errorcode
, &x11error
)) {
569 __glXSendError(dpy
, errorcode
, 0, X_GLXCopyContext
, x11error
);
573 xGLXCopyContextReq
*req
;
574 struct glx_context
*gc
= __glXGetCurrentContext();
578 opcode
= __glXSetupForCommand(dpy
);
583 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
585 /* NOT_DONE: This does not work yet */
590 ** If the source is the current context, send its tag so that the context
591 ** can be flushed before the copy.
593 if (source
== gc
&& dpy
== gc
->currentDpy
) {
594 tag
= gc
->currentContextTag
;
600 /* Send the glXCopyContext request */
602 GetReq(GLXCopyContext
, req
);
603 req
->reqType
= opcode
;
604 req
->glxCode
= X_GLXCopyContext
;
605 req
->source
= source
? source
->xid
: None
;
606 req
->dest
= dest
? dest
->xid
: None
;
608 req
->contextTag
= tag
;
611 #endif /* GLX_USE_APPLEGL */
616 * Determine if a context uses direct rendering.
618 * \param dpy Display where the context was created.
619 * \param contextID ID of the context to be tested.
621 * \returns \c True if the context is direct rendering or not.
624 __glXIsDirect(Display
* dpy
, GLXContextID contextID
)
628 xcb_generic_error_t
*err
;
629 xcb_glx_is_direct_reply_t
*reply
;
632 opcode
= __glXSetupForCommand(dpy
);
637 c
= XGetXCBConnection(dpy
);
638 reply
= xcb_glx_is_direct_reply(c
, xcb_glx_is_direct(c
, contextID
), &err
);
639 is_direct
= (reply
!= NULL
&& reply
->is_direct
) ? True
: False
;
642 __glXSendErrorForXcb(dpy
, err
);
653 * Shouldn't this function \b always return \c False when
654 * \c GLX_DIRECT_RENDERING is not defined? Do we really need to bother with
655 * the GLX protocol here at all?
658 glXIsDirect(Display
* dpy
, GLXContext gc_user
)
660 struct glx_context
*gc
= (struct glx_context
*) gc_user
;
665 else if (gc
->isDirect
) {
668 #ifdef GLX_USE_APPLEGL /* TODO: indirect on darwin */
671 return __glXIsDirect(dpy
, gc
->xid
);
675 _GLX_PUBLIC GLXPixmap
676 glXCreateGLXPixmap(Display
* dpy
, XVisualInfo
* vis
, Pixmap pixmap
)
678 #ifdef GLX_USE_APPLEGL
679 int screen
= vis
->screen
;
680 struct glx_screen
*const psc
= GetGLXScreenConfigs(dpy
, screen
);
681 const struct glx_config
*config
;
683 config
= glx_config_find_visual(psc
->visuals
, vis
->visualid
);
685 if(apple_glx_pixmap_create(dpy
, vis
->screen
, pixmap
, config
))
690 xGLXCreateGLXPixmapReq
*req
;
691 struct glx_drawable
*glxDraw
;
695 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
696 struct glx_display
*const priv
= __glXInitialize(dpy
);
702 opcode
= __glXSetupForCommand(dpy
);
707 glxDraw
= malloc(sizeof(*glxDraw
));
711 /* Send the glXCreateGLXPixmap request */
713 GetReq(GLXCreateGLXPixmap
, req
);
714 req
->reqType
= opcode
;
715 req
->glxCode
= X_GLXCreateGLXPixmap
;
716 req
->screen
= vis
->screen
;
717 req
->visual
= vis
->visualid
;
718 req
->pixmap
= pixmap
;
719 req
->glxpixmap
= xid
= XAllocID(dpy
);
723 if (InitGLXDrawable(dpy
, glxDraw
, pixmap
, req
->glxpixmap
)) {
728 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
730 /* FIXME: Maybe delay __DRIdrawable creation until the drawable
731 * is actually bound to a context... */
733 __GLXDRIdrawable
*pdraw
;
734 struct glx_screen
*psc
;
735 struct glx_config
*config
;
737 psc
= priv
->screens
[vis
->screen
];
738 if (psc
->driScreen
== NULL
)
741 config
= glx_config_find_visual(psc
->visuals
, vis
->visualid
);
742 pdraw
= psc
->driScreen
->createDrawable(psc
, pixmap
, xid
, config
);
744 fprintf(stderr
, "failed to create pixmap\n");
749 if (__glxHashInsert(priv
->drawHash
, xid
, pdraw
)) {
750 (*pdraw
->destroyDrawable
) (pdraw
);
757 xGLXDestroyGLXPixmapReq
*dreq
;
759 GetReq(GLXDestroyGLXPixmap
, dreq
);
760 dreq
->reqType
= opcode
;
761 dreq
->glxCode
= X_GLXDestroyGLXPixmap
;
762 dreq
->glxpixmap
= xid
;
773 ** Destroy the named pixmap
776 glXDestroyGLXPixmap(Display
* dpy
, GLXPixmap glxpixmap
)
778 #ifdef GLX_USE_APPLEGL
779 if(apple_glx_pixmap_destroy(dpy
, glxpixmap
))
780 __glXSendError(dpy
, GLXBadPixmap
, glxpixmap
, X_GLXDestroyPixmap
, false);
782 xGLXDestroyGLXPixmapReq
*req
;
785 opcode
= __glXSetupForCommand(dpy
);
790 /* Send the glXDestroyGLXPixmap request */
792 GetReq(GLXDestroyGLXPixmap
, req
);
793 req
->reqType
= opcode
;
794 req
->glxCode
= X_GLXDestroyGLXPixmap
;
795 req
->glxpixmap
= glxpixmap
;
799 DestroyGLXDrawable(dpy
, glxpixmap
);
801 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
803 struct glx_display
*const priv
= __glXInitialize(dpy
);
804 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, glxpixmap
);
806 if (priv
!= NULL
&& pdraw
!= NULL
) {
807 (*pdraw
->destroyDrawable
) (pdraw
);
808 __glxHashDelete(priv
->drawHash
, glxpixmap
);
812 #endif /* GLX_USE_APPLEGL */
816 glXSwapBuffers(Display
* dpy
, GLXDrawable drawable
)
818 #ifdef GLX_USE_APPLEGL
819 struct glx_context
* gc
= __glXGetCurrentContext();
820 if(gc
!= &dummyContext
&& apple_glx_is_current_drawable(dpy
, gc
->driContext
, drawable
)) {
821 apple_glx_swap_buffers(gc
->driContext
);
823 __glXSendError(dpy
, GLXBadCurrentWindow
, 0, X_GLXSwapBuffers
, false);
826 struct glx_context
*gc
;
831 gc
= __glXGetCurrentContext();
833 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
835 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
);
838 Bool flush
= gc
!= &dummyContext
&& drawable
== gc
->currentDrawable
;
840 (*pdraw
->psc
->driScreen
->swapBuffers
)(pdraw
, 0, 0, 0, flush
);
846 opcode
= __glXSetupForCommand(dpy
);
852 ** The calling thread may or may not have a current context. If it
853 ** does, send the context tag so the server can do a flush.
855 if ((gc
!= &dummyContext
) && (dpy
== gc
->currentDpy
) &&
856 ((drawable
== gc
->currentDrawable
)
857 || (drawable
== gc
->currentReadable
))) {
858 tag
= gc
->currentContextTag
;
864 c
= XGetXCBConnection(dpy
);
865 xcb_glx_swap_buffers(c
, tag
, drawable
);
867 #endif /* GLX_USE_APPLEGL */
872 ** Return configuration information for the given display, screen and
873 ** visual combination.
876 glXGetConfig(Display
* dpy
, XVisualInfo
* vis
, int attribute
,
879 struct glx_display
*priv
;
880 struct glx_screen
*psc
;
881 struct glx_config
*config
;
884 status
= GetGLXPrivScreenConfig(dpy
, vis
->screen
, &priv
, &psc
);
885 if (status
== Success
) {
886 config
= glx_config_find_visual(psc
->visuals
, vis
->visualid
);
888 /* Lookup attribute after first finding a match on the visual */
889 if (config
!= NULL
) {
890 return glx_config_get(config
, attribute
, value_return
);
893 status
= GLX_BAD_VISUAL
;
897 ** If we can't find the config for this visual, this visual is not
898 ** supported by the OpenGL implementation on the server.
900 if ((status
== GLX_BAD_VISUAL
) && (attribute
== GLX_USE_GL
)) {
901 *value_return
= False
;
908 /************************************************************************/
911 init_fbconfig_for_chooser(struct glx_config
* config
,
912 GLboolean fbconfig_style_tags
)
914 memset(config
, 0, sizeof(struct glx_config
));
915 config
->visualID
= (XID
) GLX_DONT_CARE
;
916 config
->visualType
= GLX_DONT_CARE
;
918 /* glXChooseFBConfig specifies different defaults for these properties than
921 if (fbconfig_style_tags
) {
922 config
->rgbMode
= GL_TRUE
;
923 config
->doubleBufferMode
= GLX_DONT_CARE
;
924 config
->renderType
= GLX_RGBA_BIT
;
927 config
->drawableType
= GLX_WINDOW_BIT
;
928 config
->visualRating
= GLX_DONT_CARE
;
929 config
->transparentPixel
= GLX_NONE
;
930 config
->transparentRed
= GLX_DONT_CARE
;
931 config
->transparentGreen
= GLX_DONT_CARE
;
932 config
->transparentBlue
= GLX_DONT_CARE
;
933 config
->transparentAlpha
= GLX_DONT_CARE
;
934 config
->transparentIndex
= GLX_DONT_CARE
;
936 config
->xRenderable
= GLX_DONT_CARE
;
937 config
->fbconfigID
= (GLXFBConfigID
) (GLX_DONT_CARE
);
939 config
->swapMethod
= GLX_DONT_CARE
;
942 #define MATCH_DONT_CARE( param ) \
944 if ( ((int) a-> param != (int) GLX_DONT_CARE) \
945 && (a-> param != b-> param) ) { \
950 #define MATCH_MINIMUM( param ) \
952 if ( ((int) a-> param != (int) GLX_DONT_CARE) \
953 && (a-> param > b-> param) ) { \
958 #define MATCH_EXACT( param ) \
960 if ( a-> param != b-> param) { \
965 /* Test that all bits from a are contained in b */
966 #define MATCH_MASK(param) \
968 if ( ((int) a-> param != (int) GLX_DONT_CARE) \
969 && ((a->param & ~b->param) != 0) ) { \
975 * Determine if two GLXFBConfigs are compatible.
977 * \param a Application specified config to test.
978 * \param b Server specified config to test against \c a.
981 fbconfigs_compatible(const struct glx_config
* const a
,
982 const struct glx_config
* const b
)
984 MATCH_DONT_CARE(doubleBufferMode
);
985 MATCH_DONT_CARE(visualType
);
986 MATCH_DONT_CARE(visualRating
);
987 MATCH_DONT_CARE(xRenderable
);
988 MATCH_DONT_CARE(fbconfigID
);
989 MATCH_DONT_CARE(swapMethod
);
991 MATCH_MINIMUM(rgbBits
);
992 MATCH_MINIMUM(numAuxBuffers
);
993 MATCH_MINIMUM(redBits
);
994 MATCH_MINIMUM(greenBits
);
995 MATCH_MINIMUM(blueBits
);
996 MATCH_MINIMUM(alphaBits
);
997 MATCH_MINIMUM(depthBits
);
998 MATCH_MINIMUM(stencilBits
);
999 MATCH_MINIMUM(accumRedBits
);
1000 MATCH_MINIMUM(accumGreenBits
);
1001 MATCH_MINIMUM(accumBlueBits
);
1002 MATCH_MINIMUM(accumAlphaBits
);
1003 MATCH_MINIMUM(sampleBuffers
);
1004 MATCH_MINIMUM(maxPbufferWidth
);
1005 MATCH_MINIMUM(maxPbufferHeight
);
1006 MATCH_MINIMUM(maxPbufferPixels
);
1007 MATCH_MINIMUM(samples
);
1009 MATCH_DONT_CARE(stereoMode
);
1012 MATCH_MASK(drawableType
);
1013 MATCH_MASK(renderType
);
1014 MATCH_DONT_CARE(sRGBCapable
);
1016 /* There is a bug in a few of the XFree86 DDX drivers. They contain
1017 * visuals with a "transparent type" of 0 when they really mean GLX_NONE.
1018 * Technically speaking, it is a bug in the DDX driver, but there is
1019 * enough of an installed base to work around the problem here. In any
1020 * case, 0 is not a valid value of the transparent type, so we'll treat 0
1021 * from the app as GLX_DONT_CARE. We'll consider GLX_NONE from the app and
1022 * 0 from the server to be a match to maintain backward compatibility with
1023 * the (broken) drivers.
1026 if (a
->transparentPixel
!= (int) GLX_DONT_CARE
&& a
->transparentPixel
!= 0) {
1027 if (a
->transparentPixel
== GLX_NONE
) {
1028 if (b
->transparentPixel
!= GLX_NONE
&& b
->transparentPixel
!= 0)
1032 MATCH_EXACT(transparentPixel
);
1035 switch (a
->transparentPixel
) {
1036 case GLX_TRANSPARENT_RGB
:
1037 MATCH_DONT_CARE(transparentRed
);
1038 MATCH_DONT_CARE(transparentGreen
);
1039 MATCH_DONT_CARE(transparentBlue
);
1040 MATCH_DONT_CARE(transparentAlpha
);
1043 case GLX_TRANSPARENT_INDEX
:
1044 MATCH_DONT_CARE(transparentIndex
);
1056 /* There's some trickly language in the GLX spec about how this is supposed
1057 * to work. Basically, if a given component size is either not specified
1058 * or the requested size is zero, it is supposed to act like PERFER_SMALLER.
1059 * Well, that's really hard to do with the code as-is. This behavior is
1060 * closer to correct, but still not technically right.
1062 #define PREFER_LARGER_OR_ZERO(comp) \
1064 if ( ((*a)-> comp) != ((*b)-> comp) ) { \
1065 if ( ((*a)-> comp) == 0 ) { \
1068 else if ( ((*b)-> comp) == 0 ) { \
1072 return ((*b)-> comp) - ((*a)-> comp) ; \
1077 #define PREFER_LARGER(comp) \
1079 if ( ((*a)-> comp) != ((*b)-> comp) ) { \
1080 return ((*b)-> comp) - ((*a)-> comp) ; \
1084 #define PREFER_SMALLER(comp) \
1086 if ( ((*a)-> comp) != ((*b)-> comp) ) { \
1087 return ((*a)-> comp) - ((*b)-> comp) ; \
1092 * Compare two GLXFBConfigs. This function is intended to be used as the
1093 * compare function passed in to qsort.
1095 * \returns If \c a is a "better" config, according to the specification of
1096 * SGIX_fbconfig, a number less than zero is returned. If \c b is
1097 * better, then a number greater than zero is return. If both are
1098 * equal, zero is returned.
1099 * \sa qsort, glXChooseVisual, glXChooseFBConfig, glXChooseFBConfigSGIX
1102 fbconfig_compare(struct glx_config
**a
, struct glx_config
**b
)
1104 /* The order of these comparisons must NOT change. It is defined by
1105 * the GLX 1.4 specification.
1108 PREFER_SMALLER(visualSelectGroup
);
1110 /* The sort order for the visualRating is GLX_NONE, GLX_SLOW, and
1111 * GLX_NON_CONFORMANT_CONFIG. It just so happens that this is the
1112 * numerical sort order of the enums (0x8000, 0x8001, and 0x800D).
1114 PREFER_SMALLER(visualRating
);
1116 /* This isn't quite right. It is supposed to compare the sum of the
1117 * components the user specifically set minimums for.
1119 PREFER_LARGER_OR_ZERO(redBits
);
1120 PREFER_LARGER_OR_ZERO(greenBits
);
1121 PREFER_LARGER_OR_ZERO(blueBits
);
1122 PREFER_LARGER_OR_ZERO(alphaBits
);
1124 PREFER_SMALLER(rgbBits
);
1126 if (((*a
)->doubleBufferMode
!= (*b
)->doubleBufferMode
)) {
1127 /* Prefer single-buffer.
1129 return (!(*a
)->doubleBufferMode
) ? -1 : 1;
1132 PREFER_SMALLER(numAuxBuffers
);
1134 PREFER_SMALLER(sampleBuffers
);
1135 PREFER_SMALLER(samples
);
1137 PREFER_LARGER_OR_ZERO(depthBits
);
1138 PREFER_SMALLER(stencilBits
);
1140 /* This isn't quite right. It is supposed to compare the sum of the
1141 * components the user specifically set minimums for.
1143 PREFER_LARGER_OR_ZERO(accumRedBits
);
1144 PREFER_LARGER_OR_ZERO(accumGreenBits
);
1145 PREFER_LARGER_OR_ZERO(accumBlueBits
);
1146 PREFER_LARGER_OR_ZERO(accumAlphaBits
);
1148 PREFER_SMALLER(visualType
);
1150 /* None of the pbuffer or fbconfig specs say that this comparison needs
1151 * to happen at all, but it seems like it should.
1153 PREFER_LARGER(maxPbufferWidth
);
1154 PREFER_LARGER(maxPbufferHeight
);
1155 PREFER_LARGER(maxPbufferPixels
);
1162 * Selects and sorts a subset of the supplied configs based on the attributes.
1163 * This function forms to basis of \c glXChooseFBConfig and
1164 * \c glXChooseFBConfigSGIX.
1166 * \param configs Array of pointers to possible configs. The elements of
1167 * this array that do not meet the criteria will be set to
1168 * NULL. The remaining elements will be sorted according to
1169 * the various visual / FBConfig selection rules.
1170 * \param num_configs Number of elements in the \c configs array.
1171 * \param attribList Attributes used select from \c configs. This array is
1172 * terminated by a \c None tag. The array is of the form
1173 * expected by \c glXChooseFBConfig (where every tag has a
1175 * \returns The number of valid elements left in \c configs.
1177 * \sa glXChooseFBConfig, glXChooseFBConfigSGIX
1180 choose_fbconfig(struct glx_config
** configs
, int num_configs
,
1181 const int *attribList
)
1183 struct glx_config test_config
;
1187 /* This is a fairly direct implementation of the selection method
1188 * described by GLX_SGIX_fbconfig. Start by culling out all the
1189 * configs that are not compatible with the selected parameter
1193 init_fbconfig_for_chooser(&test_config
, GL_TRUE
);
1194 __glXInitializeVisualConfigFromTags(&test_config
, 512,
1195 (const INT32
*) attribList
,
1199 for (i
= 0; i
< num_configs
; i
++) {
1200 if (fbconfigs_compatible(&test_config
, configs
[i
])) {
1201 configs
[base
] = configs
[i
];
1210 if (base
< num_configs
) {
1211 (void) memset(&configs
[base
], 0, sizeof(void *) * (num_configs
- base
));
1214 /* After the incompatible configs are removed, the resulting
1215 * list is sorted according to the rules set out in the various
1219 qsort(configs
, base
, sizeof(struct glx_config
*),
1220 (int (*)(const void *, const void *)) fbconfig_compare
);
1228 ** Return the visual that best matches the template. Return None if no
1229 ** visual matches the template.
1231 _GLX_PUBLIC XVisualInfo
*
1232 glXChooseVisual(Display
* dpy
, int screen
, int *attribList
)
1234 XVisualInfo
*visualList
= NULL
;
1235 struct glx_display
*priv
;
1236 struct glx_screen
*psc
;
1237 struct glx_config test_config
;
1238 struct glx_config
*config
;
1239 struct glx_config
*best_config
= NULL
;
1242 ** Get a list of all visuals, return if list is empty
1244 if (GetGLXPrivScreenConfig(dpy
, screen
, &priv
, &psc
) != Success
) {
1250 ** Build a template from the defaults and the attribute list
1251 ** Free visual list and return if an unexpected token is encountered
1253 init_fbconfig_for_chooser(&test_config
, GL_FALSE
);
1254 __glXInitializeVisualConfigFromTags(&test_config
, 512,
1255 (const INT32
*) attribList
,
1259 ** Eliminate visuals that don't meet minimum requirements
1260 ** Compute a score for those that do
1261 ** Remember which visual, if any, got the highest score
1262 ** If no visual is acceptable, return None
1263 ** Otherwise, create an XVisualInfo list with just the selected X visual
1266 for (config
= psc
->visuals
; config
!= NULL
; config
= config
->next
) {
1267 if (fbconfigs_compatible(&test_config
, config
)
1268 && ((best_config
== NULL
) ||
1269 (fbconfig_compare (&config
, &best_config
) < 0))) {
1270 XVisualInfo visualTemplate
;
1271 XVisualInfo
*newList
;
1274 visualTemplate
.screen
= screen
;
1275 visualTemplate
.visualid
= config
->visualID
;
1276 newList
= XGetVisualInfo(dpy
, VisualScreenMask
| VisualIDMask
,
1277 &visualTemplate
, &i
);
1281 visualList
= newList
;
1282 best_config
= config
;
1287 #ifdef GLX_USE_APPLEGL
1288 if(visualList
&& env_var_as_boolean("LIBGL_DUMP_VISUALID", false)) {
1289 printf("visualid 0x%lx\n", visualList
[0].visualid
);
1297 _GLX_PUBLIC
const char *
1298 glXQueryExtensionsString(Display
* dpy
, int screen
)
1300 struct glx_screen
*psc
;
1301 struct glx_display
*priv
;
1303 if (GetGLXPrivScreenConfig(dpy
, screen
, &priv
, &psc
) != Success
) {
1307 if (!psc
->effectiveGLXexts
) {
1308 if (!psc
->serverGLXexts
) {
1309 psc
->serverGLXexts
=
1310 __glXQueryServerString(dpy
, priv
->majorOpcode
, screen
,
1314 __glXCalculateUsableExtensions(psc
,
1315 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
1316 (psc
->driScreen
!= NULL
),
1320 priv
->minorVersion
);
1323 return psc
->effectiveGLXexts
;
1326 _GLX_PUBLIC
const char *
1327 glXGetClientString(Display
* dpy
, int name
)
1333 return (__glXGLXClientVendorName
);
1335 return (__glXGLXClientVersion
);
1336 case GLX_EXTENSIONS
:
1337 return (__glXGetClientExtensions());
1343 _GLX_PUBLIC
const char *
1344 glXQueryServerString(Display
* dpy
, int screen
, int name
)
1346 struct glx_screen
*psc
;
1347 struct glx_display
*priv
;
1351 if (GetGLXPrivScreenConfig(dpy
, screen
, &priv
, &psc
) != Success
) {
1357 str
= &priv
->serverGLXvendor
;
1360 str
= &priv
->serverGLXversion
;
1362 case GLX_EXTENSIONS
:
1363 str
= &psc
->serverGLXexts
;
1370 *str
= __glXQueryServerString(dpy
, priv
->majorOpcode
, screen
, name
);
1378 ** EXT_import_context
1381 _GLX_PUBLIC Display
*
1382 glXGetCurrentDisplay(void)
1384 struct glx_context
*gc
= __glXGetCurrentContext();
1385 if (gc
== &dummyContext
)
1387 return gc
->currentDpy
;
1391 GLX_ALIAS(Display
*, glXGetCurrentDisplayEXT
, (void), (),
1392 glXGetCurrentDisplay
)
1394 #ifndef GLX_USE_APPLEGL
1395 _GLX_PUBLIC GLXContext
1396 glXImportContextEXT(Display
*dpy
, GLXContextID contextID
)
1398 struct glx_display
*priv
= __glXInitialize(dpy
);
1399 struct glx_screen
*psc
= NULL
;
1400 xGLXQueryContextReply reply
;
1402 struct glx_context
*ctx
;
1403 int i
, renderType
= GLX_RGBA_TYPE
; /* By default, assume RGBA context */
1405 struct glx_config
*mode
= NULL
;
1406 uint32_t fbconfigID
= 0;
1407 uint32_t visualID
= 0;
1408 uint32_t screen
= 0;
1409 Bool got_screen
= False
;
1414 /* The GLX_EXT_import_context spec says:
1416 * "If <contextID> does not refer to a valid context, then a BadContext
1417 * error is generated; if <contextID> refers to direct rendering
1418 * context then no error is generated but glXImportContextEXT returns
1421 * If contextID is None, generate BadContext on the client-side. Other
1422 * sorts of invalid contexts will be detected by the server in the
1423 * __glXIsDirect call.
1425 if (contextID
== None
) {
1426 __glXSendError(dpy
, GLXBadContext
, contextID
, X_GLXIsDirect
, false);
1430 if (__glXIsDirect(dpy
, contextID
))
1433 opcode
= __glXSetupForCommand(dpy
);
1437 /* Send the glXQueryContextInfoEXT request */
1440 if (priv
->majorVersion
> 1 || priv
->minorVersion
>= 3) {
1441 xGLXQueryContextReq
*req
;
1443 GetReq(GLXQueryContext
, req
);
1445 req
->reqType
= opcode
;
1446 req
->glxCode
= X_GLXQueryContext
;
1447 req
->context
= contextID
;
1450 xGLXVendorPrivateReq
*vpreq
;
1451 xGLXQueryContextInfoEXTReq
*req
;
1453 GetReqExtra(GLXVendorPrivate
,
1454 sz_xGLXQueryContextInfoEXTReq
- sz_xGLXVendorPrivateReq
,
1456 req
= (xGLXQueryContextInfoEXTReq
*) vpreq
;
1457 req
->reqType
= opcode
;
1458 req
->glxCode
= X_GLXVendorPrivateWithReply
;
1459 req
->vendorCode
= X_GLXvop_QueryContextInfoEXT
;
1460 req
->context
= contextID
;
1463 if (_XReply(dpy
, (xReply
*) & reply
, 0, False
) &&
1464 reply
.n
< (INT32_MAX
/ 2)) {
1466 for (i
= 0; i
< reply
.n
* 2; i
++) {
1469 _XRead(dpy
, (char *)prop
, sizeof(prop
));
1475 case GLX_SHARE_CONTEXT_EXT
:
1478 case GLX_VISUAL_ID_EXT
:
1481 case GLX_FBCONFIG_ID
:
1482 fbconfigID
= prop
[1];
1484 case GLX_RENDER_TYPE
:
1485 renderType
= prop
[1];
1496 psc
= GetGLXScreenConfigs(dpy
, screen
);
1500 if (fbconfigID
!= 0) {
1501 mode
= glx_config_find_fbconfig(psc
->configs
, fbconfigID
);
1502 } else if (visualID
!= 0) {
1503 mode
= glx_config_find_visual(psc
->visuals
, visualID
);
1509 ctx
= indirect_create_context(psc
, mode
, NULL
, renderType
);
1513 ctx
->xid
= contextID
;
1514 ctx
->imported
= GL_TRUE
;
1515 ctx
->share_xid
= share
;
1517 return (GLXContext
) ctx
;
1523 glXQueryContext(Display
* dpy
, GLXContext ctx_user
, int attribute
, int *value
)
1525 struct glx_context
*ctx
= (struct glx_context
*) ctx_user
;
1527 switch (attribute
) {
1528 case GLX_SHARE_CONTEXT_EXT
:
1529 *value
= ctx
->share_xid
;
1531 case GLX_VISUAL_ID_EXT
:
1532 *value
= ctx
->config
? ctx
->config
->visualID
: None
;
1535 *value
= ctx
->screen
;
1537 case GLX_FBCONFIG_ID
:
1538 *value
= ctx
->config
? ctx
->config
->fbconfigID
: None
;
1540 case GLX_RENDER_TYPE
:
1541 *value
= ctx
->renderType
;
1544 return GLX_BAD_ATTRIBUTE
;
1550 GLX_ALIAS(int, glXQueryContextInfoEXT
,
1551 (Display
* dpy
, GLXContext ctx
, int attribute
, int *value
),
1552 (dpy
, ctx
, attribute
, value
), glXQueryContext
)
1554 _GLX_PUBLIC GLXContextID
glXGetContextIDEXT(const GLXContext ctx_user
)
1556 struct glx_context
*ctx
= (struct glx_context
*) ctx_user
;
1558 return (ctx
== NULL
) ? None
: ctx
->xid
;
1562 glXFreeContextEXT(Display
*dpy
, GLXContext ctx
)
1564 struct glx_context
*gc
= (struct glx_context
*) ctx
;
1566 if (gc
== NULL
|| gc
->xid
== None
)
1569 /* The GLX_EXT_import_context spec says:
1571 * "glXFreeContext does not free the server-side context information or
1572 * the XID associated with the server-side context."
1574 * Don't send any protocol. Just destroy the client-side tracking of the
1575 * context. Also, only release the context structure if it's not current.
1578 if (gc
->currentDpy
) {
1581 gc
->vtable
->destroy(gc
);
1586 _GLX_PUBLIC GLXFBConfig
*
1587 glXChooseFBConfig(Display
* dpy
, int screen
,
1588 const int *attribList
, int *nitems
)
1590 struct glx_config
**config_list
;
1594 config_list
= (struct glx_config
**)
1595 glXGetFBConfigs(dpy
, screen
, &list_size
);
1597 if ((config_list
!= NULL
) && (list_size
> 0) && (attribList
!= NULL
)) {
1598 list_size
= choose_fbconfig(config_list
, list_size
, attribList
);
1599 if (list_size
== 0) {
1605 *nitems
= list_size
;
1606 return (GLXFBConfig
*) config_list
;
1610 _GLX_PUBLIC GLXContext
1611 glXCreateNewContext(Display
* dpy
, GLXFBConfig fbconfig
,
1612 int renderType
, GLXContext shareList
, Bool allowDirect
)
1614 struct glx_config
*config
= (struct glx_config
*) fbconfig
;
1615 struct glx_config
**config_list
;
1620 __glXSendError(dpy
, GLXBadFBConfig
, 0, X_GLXCreateNewContext
, false);
1624 config_list
= (struct glx_config
**)
1625 glXGetFBConfigs(dpy
, config
->screen
, &list_size
);
1627 for (i
= 0; i
< list_size
; i
++) {
1628 if (config_list
[i
] == config
)
1633 if (i
== list_size
) {
1634 __glXSendError(dpy
, GLXBadFBConfig
, 0, X_GLXCreateNewContext
, false);
1638 return CreateContext(dpy
, config
->fbconfigID
, config
, shareList
,
1639 allowDirect
, X_GLXCreateNewContext
, renderType
,
1644 _GLX_PUBLIC GLXDrawable
1645 glXGetCurrentReadDrawable(void)
1647 struct glx_context
*gc
= __glXGetCurrentContext();
1649 return gc
->currentReadable
;
1653 _GLX_PUBLIC GLXFBConfig
*
1654 glXGetFBConfigs(Display
* dpy
, int screen
, int *nelements
)
1656 struct glx_display
*priv
= __glXInitialize(dpy
);
1657 struct glx_config
**config_list
= NULL
;
1658 struct glx_config
*config
;
1659 unsigned num_configs
= 0;
1663 if (priv
&& (priv
->screens
!= NULL
)
1664 && (screen
>= 0) && (screen
< ScreenCount(dpy
))
1665 && (priv
->screens
[screen
]->configs
!= NULL
)
1666 && (priv
->screens
[screen
]->configs
->fbconfigID
1667 != (int) GLX_DONT_CARE
)) {
1669 for (config
= priv
->screens
[screen
]->configs
; config
!= NULL
;
1670 config
= config
->next
) {
1671 if (config
->fbconfigID
!= (int) GLX_DONT_CARE
) {
1676 config_list
= malloc(num_configs
* sizeof *config_list
);
1677 if (config_list
!= NULL
) {
1678 *nelements
= num_configs
;
1680 for (config
= priv
->screens
[screen
]->configs
; config
!= NULL
;
1681 config
= config
->next
) {
1682 if (config
->fbconfigID
!= (int) GLX_DONT_CARE
) {
1683 config_list
[i
] = config
;
1690 return (GLXFBConfig
*) config_list
;
1695 glXGetFBConfigAttrib(Display
* dpy
, GLXFBConfig fbconfig
,
1696 int attribute
, int *value
)
1698 struct glx_config
*config
= ValidateGLXFBConfig(dpy
, fbconfig
);
1701 return GLXBadFBConfig
;
1703 return glx_config_get(config
, attribute
, value
);
1707 _GLX_PUBLIC XVisualInfo
*
1708 glXGetVisualFromFBConfig(Display
* dpy
, GLXFBConfig fbconfig
)
1710 XVisualInfo visualTemplate
;
1711 struct glx_config
*config
= (struct glx_config
*) fbconfig
;
1715 ** Get a list of all visuals, return if list is empty
1717 visualTemplate
.visualid
= config
->visualID
;
1718 return XGetVisualInfo(dpy
, VisualIDMask
, &visualTemplate
, &count
);
1721 #ifndef GLX_USE_APPLEGL
1723 ** GLX_SGI_swap_control
1726 __glXSwapIntervalSGI(int interval
)
1728 xGLXVendorPrivateReq
*req
;
1729 struct glx_context
*gc
= __glXGetCurrentContext();
1730 struct glx_screen
*psc
;
1732 CARD32
*interval_ptr
;
1735 if (gc
== &dummyContext
) {
1736 return GLX_BAD_CONTEXT
;
1739 if (interval
<= 0) {
1740 return GLX_BAD_VALUE
;
1743 psc
= GetGLXScreenConfigs( gc
->currentDpy
, gc
->screen
);
1745 #ifdef GLX_DIRECT_RENDERING
1746 if (gc
->isDirect
&& psc
&& psc
->driScreen
&&
1747 psc
->driScreen
->setSwapInterval
) {
1748 __GLXDRIdrawable
*pdraw
=
1749 GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
);
1750 /* Simply ignore the command if the GLX drawable has been destroyed but
1751 * the context is still bound.
1754 psc
->driScreen
->setSwapInterval(pdraw
, interval
);
1759 dpy
= gc
->currentDpy
;
1760 opcode
= __glXSetupForCommand(dpy
);
1765 /* Send the glXSwapIntervalSGI request */
1767 GetReqExtra(GLXVendorPrivate
, sizeof(CARD32
), req
);
1768 req
->reqType
= opcode
;
1769 req
->glxCode
= X_GLXVendorPrivate
;
1770 req
->vendorCode
= X_GLXvop_SwapIntervalSGI
;
1771 req
->contextTag
= gc
->currentContextTag
;
1773 interval_ptr
= (CARD32
*) (req
+ 1);
1774 *interval_ptr
= interval
;
1785 ** GLX_MESA_swap_control
1788 __glXSwapIntervalMESA(unsigned int interval
)
1790 #ifdef GLX_DIRECT_RENDERING
1791 struct glx_context
*gc
= __glXGetCurrentContext();
1793 if (gc
!= &dummyContext
&& gc
->isDirect
) {
1794 struct glx_screen
*psc
;
1796 psc
= GetGLXScreenConfigs( gc
->currentDpy
, gc
->screen
);
1797 if (psc
&& psc
->driScreen
&& psc
->driScreen
->setSwapInterval
) {
1798 __GLXDRIdrawable
*pdraw
=
1799 GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
);
1801 /* Simply ignore the command if the GLX drawable has been destroyed but
1802 * the context is still bound.
1807 return psc
->driScreen
->setSwapInterval(pdraw
, interval
);
1812 return GLX_BAD_CONTEXT
;
1817 __glXGetSwapIntervalMESA(void)
1819 #ifdef GLX_DIRECT_RENDERING
1820 struct glx_context
*gc
= __glXGetCurrentContext();
1822 if (gc
!= &dummyContext
&& gc
->isDirect
) {
1823 struct glx_screen
*psc
;
1825 psc
= GetGLXScreenConfigs( gc
->currentDpy
, gc
->screen
);
1826 if (psc
&& psc
->driScreen
&& psc
->driScreen
->getSwapInterval
) {
1827 __GLXDRIdrawable
*pdraw
=
1828 GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
);
1830 return psc
->driScreen
->getSwapInterval(pdraw
);
1840 ** GLX_SGI_video_sync
1843 __glXGetVideoSyncSGI(unsigned int *count
)
1845 int64_t ust
, msc
, sbc
;
1847 struct glx_context
*gc
= __glXGetCurrentContext();
1848 struct glx_screen
*psc
;
1849 #ifdef GLX_DIRECT_RENDERING
1850 __GLXDRIdrawable
*pdraw
;
1853 if (gc
== &dummyContext
)
1854 return GLX_BAD_CONTEXT
;
1856 #ifdef GLX_DIRECT_RENDERING
1858 return GLX_BAD_CONTEXT
;
1861 psc
= GetGLXScreenConfigs(gc
->currentDpy
, gc
->screen
);
1862 #ifdef GLX_DIRECT_RENDERING
1863 pdraw
= GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
);
1866 /* FIXME: Looking at the GLX_SGI_video_sync spec in the extension registry,
1867 * FIXME: there should be a GLX encoding for this call. I can find no
1868 * FIXME: documentation for the GLX encoding.
1870 #ifdef GLX_DIRECT_RENDERING
1871 if (psc
&& psc
->driScreen
&& psc
->driScreen
->getDrawableMSC
) {
1872 ret
= psc
->driScreen
->getDrawableMSC(psc
, pdraw
, &ust
, &msc
, &sbc
);
1873 *count
= (unsigned) msc
;
1874 return (ret
== True
) ? 0 : GLX_BAD_CONTEXT
;
1878 return GLX_BAD_CONTEXT
;
1882 __glXWaitVideoSyncSGI(int divisor
, int remainder
, unsigned int *count
)
1884 struct glx_context
*gc
= __glXGetCurrentContext();
1885 struct glx_screen
*psc
;
1886 #ifdef GLX_DIRECT_RENDERING
1887 __GLXDRIdrawable
*pdraw
;
1889 int64_t ust
, msc
, sbc
;
1892 if (divisor
<= 0 || remainder
< 0)
1893 return GLX_BAD_VALUE
;
1895 if (gc
== &dummyContext
)
1896 return GLX_BAD_CONTEXT
;
1898 #ifdef GLX_DIRECT_RENDERING
1900 return GLX_BAD_CONTEXT
;
1903 psc
= GetGLXScreenConfigs( gc
->currentDpy
, gc
->screen
);
1904 #ifdef GLX_DIRECT_RENDERING
1905 pdraw
= GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
);
1908 #ifdef GLX_DIRECT_RENDERING
1909 if (psc
&& psc
->driScreen
&& psc
->driScreen
->waitForMSC
) {
1910 ret
= psc
->driScreen
->waitForMSC(pdraw
, 0, divisor
, remainder
, &ust
, &msc
,
1912 *count
= (unsigned) msc
;
1913 return (ret
== True
) ? 0 : GLX_BAD_CONTEXT
;
1917 return GLX_BAD_CONTEXT
;
1920 #endif /* GLX_USE_APPLEGL */
1923 ** GLX_SGIX_fbconfig
1924 ** Many of these functions are aliased to GLX 1.3 entry points in the
1925 ** GLX_functions table.
1929 GLX_ALIAS(int, glXGetFBConfigAttribSGIX
,
1930 (Display
* dpy
, GLXFBConfigSGIX config
, int attribute
, int *value
),
1931 (dpy
, config
, attribute
, value
), glXGetFBConfigAttrib
)
1933 _GLX_PUBLIC
GLX_ALIAS(GLXFBConfigSGIX
*, glXChooseFBConfigSGIX
,
1934 (Display
* dpy
, int screen
, int *attrib_list
,
1935 int *nelements
), (dpy
, screen
, attrib_list
, nelements
),
1938 _GLX_PUBLIC
GLX_ALIAS(XVisualInfo
*, glXGetVisualFromFBConfigSGIX
,
1939 (Display
* dpy
, GLXFBConfigSGIX config
),
1940 (dpy
, config
), glXGetVisualFromFBConfig
)
1942 _GLX_PUBLIC GLXPixmap
1943 glXCreateGLXPixmapWithConfigSGIX(Display
* dpy
,
1944 GLXFBConfigSGIX fbconfig
,
1947 #ifndef GLX_USE_APPLEGL
1948 xGLXVendorPrivateWithReplyReq
*vpreq
;
1949 xGLXCreateGLXPixmapWithConfigSGIXReq
*req
;
1950 GLXPixmap xid
= None
;
1952 struct glx_screen
*psc
;
1954 struct glx_config
*config
= (struct glx_config
*) fbconfig
;
1957 if ((dpy
== NULL
) || (config
== NULL
)) {
1960 #ifdef GLX_USE_APPLEGL
1961 if(apple_glx_pixmap_create(dpy
, config
->screen
, pixmap
, config
))
1966 psc
= GetGLXScreenConfigs(dpy
, config
->screen
);
1968 && __glXExtensionBitIsEnabled(psc
, SGIX_fbconfig_bit
)) {
1969 opcode
= __glXSetupForCommand(dpy
);
1974 /* Send the glXCreateGLXPixmapWithConfigSGIX request */
1976 GetReqExtra(GLXVendorPrivateWithReply
,
1977 sz_xGLXCreateGLXPixmapWithConfigSGIXReq
-
1978 sz_xGLXVendorPrivateWithReplyReq
, vpreq
);
1979 req
= (xGLXCreateGLXPixmapWithConfigSGIXReq
*) vpreq
;
1980 req
->reqType
= opcode
;
1981 req
->glxCode
= X_GLXVendorPrivateWithReply
;
1982 req
->vendorCode
= X_GLXvop_CreateGLXPixmapWithConfigSGIX
;
1983 req
->screen
= config
->screen
;
1984 req
->fbconfig
= config
->fbconfigID
;
1985 req
->pixmap
= pixmap
;
1986 req
->glxpixmap
= xid
= XAllocID(dpy
);
1995 _GLX_PUBLIC GLXContext
1996 glXCreateContextWithConfigSGIX(Display
* dpy
,
1997 GLXFBConfigSGIX fbconfig
, int renderType
,
1998 GLXContext shareList
, Bool allowDirect
)
2000 GLXContext gc
= NULL
;
2001 struct glx_config
*config
= (struct glx_config
*) fbconfig
;
2002 struct glx_screen
*psc
;
2005 if ((dpy
== NULL
) || (config
== NULL
)) {
2009 psc
= GetGLXScreenConfigs(dpy
, config
->screen
);
2011 && __glXExtensionBitIsEnabled(psc
, SGIX_fbconfig_bit
)) {
2012 gc
= CreateContext(dpy
, config
->fbconfigID
, config
, shareList
,
2014 X_GLXvop_CreateContextWithConfigSGIX
, renderType
,
2022 _GLX_PUBLIC GLXFBConfigSGIX
2023 glXGetFBConfigFromVisualSGIX(Display
* dpy
, XVisualInfo
* vis
)
2025 struct glx_display
*priv
;
2026 struct glx_screen
*psc
= NULL
;
2028 if ((GetGLXPrivScreenConfig(dpy
, vis
->screen
, &priv
, &psc
) == Success
)
2029 && __glXExtensionBitIsEnabled(psc
, SGIX_fbconfig_bit
)
2030 && (psc
->configs
->fbconfigID
!= (int) GLX_DONT_CARE
)) {
2031 return (GLXFBConfigSGIX
) glx_config_find_visual(psc
->configs
,
2038 #ifndef GLX_USE_APPLEGL
2040 ** GLX_OML_sync_control
2043 __glXGetSyncValuesOML(Display
* dpy
, GLXDrawable drawable
,
2044 int64_t * ust
, int64_t * msc
, int64_t * sbc
)
2046 struct glx_display
* const priv
= __glXInitialize(dpy
);
2048 #ifdef GLX_DIRECT_RENDERING
2049 __GLXDRIdrawable
*pdraw
;
2051 struct glx_screen
*psc
;
2056 #ifdef GLX_DIRECT_RENDERING
2057 pdraw
= GetGLXDRIDrawable(dpy
, drawable
);
2058 psc
= pdraw
? pdraw
->psc
: NULL
;
2059 if (pdraw
&& psc
->driScreen
->getDrawableMSC
) {
2060 ret
= psc
->driScreen
->getDrawableMSC(psc
, pdraw
, ust
, msc
, sbc
);
2068 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
2070 __glxGetMscRate(struct glx_screen
*psc
,
2071 int32_t * numerator
, int32_t * denominator
)
2074 XF86VidModeModeLine mode_line
;
2078 if (XF86VidModeQueryVersion(psc
->dpy
, &i
, &i
) &&
2079 XF86VidModeGetModeLine(psc
->dpy
, psc
->scr
, &dot_clock
, &mode_line
)) {
2080 unsigned n
= dot_clock
* 1000;
2081 unsigned d
= mode_line
.vtotal
* mode_line
.htotal
;
2083 # define V_INTERLACE 0x010
2084 # define V_DBLSCAN 0x020
2086 if (mode_line
.flags
& V_INTERLACE
)
2088 else if (mode_line
.flags
& V_DBLSCAN
)
2091 /* The OML_sync_control spec requires that if the refresh rate is a
2092 * whole number, that the returned numerator be equal to the refresh
2093 * rate and the denominator be 1.
2101 static const unsigned f
[] = { 13, 11, 7, 5, 3, 2, 0 };
2103 /* This is a poor man's way to reduce a fraction. It's far from
2104 * perfect, but it will work well enough for this situation.
2107 for (i
= 0; f
[i
] != 0; i
++) {
2108 while (n
% f
[i
] == 0 && d
% f
[i
] == 0) {
2128 * Determine the refresh rate of the specified drawable and display.
2130 * \param dpy Display whose refresh rate is to be determined.
2131 * \param drawable Drawable whose refresh rate is to be determined.
2132 * \param numerator Numerator of the refresh rate.
2133 * \param demoninator Denominator of the refresh rate.
2134 * \return If the refresh rate for the specified display and drawable could
2135 * be calculated, True is returned. Otherwise False is returned.
2137 * \note This function is implemented entirely client-side. A lot of other
2138 * functionality is required to export GLX_OML_sync_control, so on
2139 * XFree86 this function can be called for direct-rendering contexts
2140 * when GLX_OML_sync_control appears in the client extension string.
2144 __glXGetMscRateOML(Display
* dpy
, GLXDrawable drawable
,
2145 int32_t * numerator
, int32_t * denominator
)
2147 #if defined( GLX_DIRECT_RENDERING ) && defined( XF86VIDMODE )
2148 __GLXDRIdrawable
*draw
= GetGLXDRIDrawable(dpy
, drawable
);
2153 return __glxGetMscRate(draw
->psc
, numerator
, denominator
);
2165 __glXSwapBuffersMscOML(Display
* dpy
, GLXDrawable drawable
,
2166 int64_t target_msc
, int64_t divisor
, int64_t remainder
)
2168 struct glx_context
*gc
= __glXGetCurrentContext();
2169 #ifdef GLX_DIRECT_RENDERING
2170 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
);
2171 struct glx_screen
*psc
= pdraw
? pdraw
->psc
: NULL
;
2174 if (gc
== &dummyContext
) /* no GLX for this */
2177 #ifdef GLX_DIRECT_RENDERING
2178 if (!pdraw
|| !gc
->isDirect
)
2182 /* The OML_sync_control spec says these should "generate a GLX_BAD_VALUE
2183 * error", but it also says "It [glXSwapBuffersMscOML] will return a value
2184 * of -1 if the function failed because of errors detected in the input
2187 if (divisor
< 0 || remainder
< 0 || target_msc
< 0)
2189 if (divisor
> 0 && remainder
>= divisor
)
2192 if (target_msc
== 0 && divisor
== 0 && remainder
== 0)
2195 #ifdef GLX_DIRECT_RENDERING
2196 if (psc
->driScreen
&& psc
->driScreen
->swapBuffers
)
2197 return (*psc
->driScreen
->swapBuffers
)(pdraw
, target_msc
, divisor
,
2206 __glXWaitForMscOML(Display
* dpy
, GLXDrawable drawable
,
2207 int64_t target_msc
, int64_t divisor
,
2208 int64_t remainder
, int64_t * ust
,
2209 int64_t * msc
, int64_t * sbc
)
2211 #ifdef GLX_DIRECT_RENDERING
2212 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
);
2213 struct glx_screen
*psc
= pdraw
? pdraw
->psc
: NULL
;
2218 /* The OML_sync_control spec says these should "generate a GLX_BAD_VALUE
2219 * error", but the return type in the spec is Bool.
2221 if (divisor
< 0 || remainder
< 0 || target_msc
< 0)
2223 if (divisor
> 0 && remainder
>= divisor
)
2226 #ifdef GLX_DIRECT_RENDERING
2227 if (pdraw
&& psc
->driScreen
&& psc
->driScreen
->waitForMSC
) {
2228 ret
= psc
->driScreen
->waitForMSC(pdraw
, target_msc
, divisor
, remainder
,
2239 __glXWaitForSbcOML(Display
* dpy
, GLXDrawable drawable
,
2240 int64_t target_sbc
, 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
;
2249 /* The OML_sync_control spec says this should "generate a GLX_BAD_VALUE
2250 * error", but the return type in the spec is Bool.
2255 #ifdef GLX_DIRECT_RENDERING
2256 if (pdraw
&& psc
->driScreen
&& psc
->driScreen
->waitForSBC
) {
2257 ret
= psc
->driScreen
->waitForSBC(pdraw
, target_sbc
, ust
, msc
, sbc
);
2269 * Mesa extension stubs. These will help reduce portability problems.
2274 * Release all buffers associated with the specified GLX drawable.
2277 * This function was intended for stand-alone Mesa. The issue there is that
2278 * the library doesn't get any notification when a window is closed. In
2279 * DRI there is a similar but slightly different issue. When GLX 1.3 is
2280 * supported, there are 3 different functions to destroy a drawable. It
2281 * should be possible to create GLX protocol (or have it determine which
2282 * protocol to use based on the type of the drawable) to have one function
2283 * do the work of 3. For the direct-rendering case, this function could
2284 * just call the driver's \c __DRIdrawableRec::destroyDrawable function.
2285 * This would reduce the frequency with which \c __driGarbageCollectDrawables
2286 * would need to be used. This really should be done as part of the new DRI
2289 * \sa http://oss.sgi.com/projects/ogl-sample/registry/MESA/release_buffers.txt
2290 * __driGarbageCollectDrawables
2291 * glXDestroyGLXPixmap
2292 * glXDestroyPbuffer glXDestroyPixmap glXDestroyWindow
2293 * glXDestroyGLXPbufferSGIX glXDestroyGLXVideoSourceSGIX
2296 __glXReleaseBuffersMESA(Display
* dpy
, GLXDrawable d
)
2304 _GLX_PUBLIC GLXPixmap
2305 glXCreateGLXPixmapMESA(Display
* dpy
, XVisualInfo
* visual
,
2306 Pixmap pixmap
, Colormap cmap
)
2319 * GLX_MESA_copy_sub_buffer
2321 #define X_GLXvop_CopySubBufferMESA 5154 /* temporary */
2323 __glXCopySubBufferMESA(Display
* dpy
, GLXDrawable drawable
,
2324 int x
, int y
, int width
, int height
)
2326 xGLXVendorPrivateReq
*req
;
2327 struct glx_context
*gc
;
2329 CARD32
*drawable_ptr
;
2330 INT32
*x_ptr
, *y_ptr
, *w_ptr
, *h_ptr
;
2333 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
2334 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
);
2335 if (pdraw
!= NULL
) {
2336 struct glx_screen
*psc
= pdraw
->psc
;
2337 if (psc
->driScreen
->copySubBuffer
!= NULL
) {
2338 (*psc
->driScreen
->copySubBuffer
) (pdraw
, x
, y
, width
, height
, True
);
2345 opcode
= __glXSetupForCommand(dpy
);
2350 ** The calling thread may or may not have a current context. If it
2351 ** does, send the context tag so the server can do a flush.
2353 gc
= __glXGetCurrentContext();
2354 if ((gc
!= &dummyContext
) && (dpy
== gc
->currentDpy
) &&
2355 ((drawable
== gc
->currentDrawable
) ||
2356 (drawable
== gc
->currentReadable
))) {
2357 tag
= gc
->currentContextTag
;
2364 GetReqExtra(GLXVendorPrivate
, sizeof(CARD32
) + sizeof(INT32
) * 4, req
);
2365 req
->reqType
= opcode
;
2366 req
->glxCode
= X_GLXVendorPrivate
;
2367 req
->vendorCode
= X_GLXvop_CopySubBufferMESA
;
2368 req
->contextTag
= tag
;
2370 drawable_ptr
= (CARD32
*) (req
+ 1);
2371 x_ptr
= (INT32
*) (drawable_ptr
+ 1);
2372 y_ptr
= (INT32
*) (drawable_ptr
+ 2);
2373 w_ptr
= (INT32
*) (drawable_ptr
+ 3);
2374 h_ptr
= (INT32
*) (drawable_ptr
+ 4);
2376 *drawable_ptr
= drawable
;
2388 __glXBindTexImageEXT(Display
* dpy
,
2389 GLXDrawable drawable
, int buffer
, const int *attrib_list
)
2391 struct glx_context
*gc
= __glXGetCurrentContext();
2393 if (gc
->vtable
->bind_tex_image
== NULL
)
2396 gc
->vtable
->bind_tex_image(dpy
, drawable
, buffer
, attrib_list
);
2400 __glXReleaseTexImageEXT(Display
* dpy
, GLXDrawable drawable
, int buffer
)
2402 struct glx_context
*gc
= __glXGetCurrentContext();
2404 if (gc
->vtable
->release_tex_image
== NULL
)
2407 gc
->vtable
->release_tex_image(dpy
, drawable
, buffer
);
2412 #endif /* GLX_USE_APPLEGL */
2415 ** glXGetProcAddress support
2418 struct name_address_pair
2424 #define GLX_FUNCTION(f) { # f, (GLvoid *) f }
2425 #define GLX_FUNCTION2(n,f) { # n, (GLvoid *) f }
2427 static const struct name_address_pair GLX_functions
[] = {
2428 /*** GLX_VERSION_1_0 ***/
2429 GLX_FUNCTION(glXChooseVisual
),
2430 GLX_FUNCTION(glXCopyContext
),
2431 GLX_FUNCTION(glXCreateContext
),
2432 GLX_FUNCTION(glXCreateGLXPixmap
),
2433 GLX_FUNCTION(glXDestroyContext
),
2434 GLX_FUNCTION(glXDestroyGLXPixmap
),
2435 GLX_FUNCTION(glXGetConfig
),
2436 GLX_FUNCTION(glXGetCurrentContext
),
2437 GLX_FUNCTION(glXGetCurrentDrawable
),
2438 GLX_FUNCTION(glXIsDirect
),
2439 GLX_FUNCTION(glXMakeCurrent
),
2440 GLX_FUNCTION(glXQueryExtension
),
2441 GLX_FUNCTION(glXQueryVersion
),
2442 GLX_FUNCTION(glXSwapBuffers
),
2443 GLX_FUNCTION(glXUseXFont
),
2444 GLX_FUNCTION(glXWaitGL
),
2445 GLX_FUNCTION(glXWaitX
),
2447 /*** GLX_VERSION_1_1 ***/
2448 GLX_FUNCTION(glXGetClientString
),
2449 GLX_FUNCTION(glXQueryExtensionsString
),
2450 GLX_FUNCTION(glXQueryServerString
),
2452 /*** GLX_VERSION_1_2 ***/
2453 GLX_FUNCTION(glXGetCurrentDisplay
),
2455 /*** GLX_VERSION_1_3 ***/
2456 GLX_FUNCTION(glXChooseFBConfig
),
2457 GLX_FUNCTION(glXCreateNewContext
),
2458 GLX_FUNCTION(glXCreatePbuffer
),
2459 GLX_FUNCTION(glXCreatePixmap
),
2460 GLX_FUNCTION(glXCreateWindow
),
2461 GLX_FUNCTION(glXDestroyPbuffer
),
2462 GLX_FUNCTION(glXDestroyPixmap
),
2463 GLX_FUNCTION(glXDestroyWindow
),
2464 GLX_FUNCTION(glXGetCurrentReadDrawable
),
2465 GLX_FUNCTION(glXGetFBConfigAttrib
),
2466 GLX_FUNCTION(glXGetFBConfigs
),
2467 GLX_FUNCTION(glXGetSelectedEvent
),
2468 GLX_FUNCTION(glXGetVisualFromFBConfig
),
2469 GLX_FUNCTION(glXMakeContextCurrent
),
2470 GLX_FUNCTION(glXQueryContext
),
2471 GLX_FUNCTION(glXQueryDrawable
),
2472 GLX_FUNCTION(glXSelectEvent
),
2474 #ifndef GLX_USE_APPLEGL
2475 /*** GLX_SGI_swap_control ***/
2476 GLX_FUNCTION2(glXSwapIntervalSGI
, __glXSwapIntervalSGI
),
2478 /*** GLX_SGI_video_sync ***/
2479 GLX_FUNCTION2(glXGetVideoSyncSGI
, __glXGetVideoSyncSGI
),
2480 GLX_FUNCTION2(glXWaitVideoSyncSGI
, __glXWaitVideoSyncSGI
),
2482 /*** GLX_SGI_make_current_read ***/
2483 GLX_FUNCTION2(glXMakeCurrentReadSGI
, glXMakeContextCurrent
),
2484 GLX_FUNCTION2(glXGetCurrentReadDrawableSGI
, glXGetCurrentReadDrawable
),
2486 /*** GLX_EXT_import_context ***/
2487 GLX_FUNCTION(glXFreeContextEXT
),
2488 GLX_FUNCTION(glXGetContextIDEXT
),
2489 GLX_FUNCTION2(glXGetCurrentDisplayEXT
, glXGetCurrentDisplay
),
2490 GLX_FUNCTION(glXImportContextEXT
),
2491 GLX_FUNCTION2(glXQueryContextInfoEXT
, glXQueryContext
),
2494 /*** GLX_SGIX_fbconfig ***/
2495 GLX_FUNCTION2(glXGetFBConfigAttribSGIX
, glXGetFBConfigAttrib
),
2496 GLX_FUNCTION2(glXChooseFBConfigSGIX
, glXChooseFBConfig
),
2497 GLX_FUNCTION(glXCreateGLXPixmapWithConfigSGIX
),
2498 GLX_FUNCTION(glXCreateContextWithConfigSGIX
),
2499 GLX_FUNCTION2(glXGetVisualFromFBConfigSGIX
, glXGetVisualFromFBConfig
),
2500 GLX_FUNCTION(glXGetFBConfigFromVisualSGIX
),
2502 #ifndef GLX_USE_APPLEGL
2503 /*** GLX_SGIX_pbuffer ***/
2504 GLX_FUNCTION(glXCreateGLXPbufferSGIX
),
2505 GLX_FUNCTION(glXDestroyGLXPbufferSGIX
),
2506 GLX_FUNCTION(glXQueryGLXPbufferSGIX
),
2507 GLX_FUNCTION(glXSelectEventSGIX
),
2508 GLX_FUNCTION(glXGetSelectedEventSGIX
),
2510 /*** GLX_MESA_copy_sub_buffer ***/
2511 GLX_FUNCTION2(glXCopySubBufferMESA
, __glXCopySubBufferMESA
),
2513 /*** GLX_MESA_pixmap_colormap ***/
2514 GLX_FUNCTION(glXCreateGLXPixmapMESA
),
2516 /*** GLX_MESA_release_buffers ***/
2517 GLX_FUNCTION2(glXReleaseBuffersMESA
, __glXReleaseBuffersMESA
),
2519 /*** GLX_MESA_swap_control ***/
2520 GLX_FUNCTION2(glXSwapIntervalMESA
, __glXSwapIntervalMESA
),
2521 GLX_FUNCTION2(glXGetSwapIntervalMESA
, __glXGetSwapIntervalMESA
),
2524 /*** GLX_ARB_get_proc_address ***/
2525 GLX_FUNCTION(glXGetProcAddressARB
),
2528 GLX_FUNCTION2(glXGetProcAddress
, glXGetProcAddressARB
),
2530 #ifndef GLX_USE_APPLEGL
2531 /*** GLX_OML_sync_control ***/
2532 GLX_FUNCTION2(glXWaitForSbcOML
, __glXWaitForSbcOML
),
2533 GLX_FUNCTION2(glXWaitForMscOML
, __glXWaitForMscOML
),
2534 GLX_FUNCTION2(glXSwapBuffersMscOML
, __glXSwapBuffersMscOML
),
2535 GLX_FUNCTION2(glXGetMscRateOML
, __glXGetMscRateOML
),
2536 GLX_FUNCTION2(glXGetSyncValuesOML
, __glXGetSyncValuesOML
),
2538 /*** GLX_EXT_texture_from_pixmap ***/
2539 GLX_FUNCTION2(glXBindTexImageEXT
, __glXBindTexImageEXT
),
2540 GLX_FUNCTION2(glXReleaseTexImageEXT
, __glXReleaseTexImageEXT
),
2543 #if defined(GLX_DIRECT_RENDERING) && defined(GLX_USE_DRM)
2544 /*** DRI configuration ***/
2545 GLX_FUNCTION(glXGetScreenDriver
),
2546 GLX_FUNCTION(glXGetDriverConfig
),
2549 /*** GLX_ARB_create_context and GLX_ARB_create_context_profile ***/
2550 GLX_FUNCTION(glXCreateContextAttribsARB
),
2552 /*** GLX_MESA_query_renderer ***/
2553 GLX_FUNCTION(glXQueryRendererIntegerMESA
),
2554 GLX_FUNCTION(glXQueryRendererStringMESA
),
2555 GLX_FUNCTION(glXQueryCurrentRendererIntegerMESA
),
2556 GLX_FUNCTION(glXQueryCurrentRendererStringMESA
),
2558 {NULL
, NULL
} /* end of list */
2561 static const GLvoid
*
2562 get_glx_proc_address(const char *funcName
)
2566 /* try static functions */
2567 for (i
= 0; GLX_functions
[i
].Name
; i
++) {
2568 if (strcmp(GLX_functions
[i
].Name
, funcName
) == 0)
2569 return GLX_functions
[i
].Address
;
2576 * Get the address of a named GL function. This is the pre-GLX 1.4 name for
2577 * \c glXGetProcAddress.
2579 * \param procName Name of a GL or GLX function.
2580 * \returns A pointer to the named function
2582 * \sa glXGetProcAddress
2584 _GLX_PUBLIC
void (*glXGetProcAddressARB(const GLubyte
* procName
)) (void)
2586 typedef void (*gl_function
) (void);
2590 /* Search the table of GLX and internal functions first. If that
2591 * fails and the supplied name could be a valid core GL name, try
2592 * searching the core GL function table. This check is done to prevent
2593 * DRI based drivers from searching the core GL function table for
2594 * internal API functions.
2596 f
= (gl_function
) get_glx_proc_address((const char *) procName
);
2597 if ((f
== NULL
) && (procName
[0] == 'g') && (procName
[1] == 'l')
2598 && (procName
[2] != 'X')) {
2599 #ifdef GLX_INDIRECT_RENDERING
2600 f
= (gl_function
) __indirect_get_proc_address((const char *) procName
);
2603 f
= (gl_function
) _glapi_get_proc_address((const char *) procName
);
2605 struct glx_context
*gc
= __glXGetCurrentContext();
2607 if (gc
!= NULL
&& gc
->vtable
->get_proc_address
!= NULL
)
2608 f
= gc
->vtable
->get_proc_address((const char *) procName
);
2615 * Get the address of a named GL function. This is the GLX 1.4 name for
2616 * \c glXGetProcAddressARB.
2618 * \param procName Name of a GL or GLX function.
2619 * \returns A pointer to the named function
2621 * \sa glXGetProcAddressARB
2624 GLX_ALIAS(__GLXextFuncPtr
, glXGetProcAddress
,
2625 (const GLubyte
* procName
),
2626 (procName
), glXGetProcAddressARB
)
2628 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
2630 * Get the unadjusted system time (UST). Currently, the UST is measured in
2631 * microseconds since Epoc. The actual resolution of the UST may vary from
2632 * system to system, and the units may vary from release to release.
2633 * Drivers should not call this function directly. They should instead use
2634 * \c glXGetProcAddress to obtain a pointer to the function.
2636 * \param ust Location to store the 64-bit UST
2637 * \returns Zero on success or a negative errno value on failure.
2639 * \sa glXGetProcAddress, PFNGLXGETUSTPROC
2641 * \since Internal API version 20030317.
2644 __glXGetUST(int64_t * ust
)
2652 if (gettimeofday(&tv
, NULL
) == 0) {
2653 ust
[0] = (tv
.tv_sec
* 1000000) + tv
.tv_usec
;
2660 #endif /* GLX_DIRECT_RENDERING */
2662 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
2665 MesaGLInteropGLXQueryDeviceInfo(Display
*dpy
, GLXContext context
,
2666 struct mesa_glinterop_device_info
*out
)
2668 struct glx_context
*gc
= (struct glx_context
*)context
;
2673 if (!gc
|| gc
->xid
== None
|| !gc
->isDirect
) {
2675 return MESA_GLINTEROP_INVALID_CONTEXT
;
2678 if (!gc
->vtable
->interop_query_device_info
) {
2680 return MESA_GLINTEROP_UNSUPPORTED
;
2683 ret
= gc
->vtable
->interop_query_device_info(gc
, out
);
2689 MesaGLInteropGLXExportObject(Display
*dpy
, GLXContext context
,
2690 struct mesa_glinterop_export_in
*in
,
2691 struct mesa_glinterop_export_out
*out
)
2693 struct glx_context
*gc
= (struct glx_context
*)context
;
2698 if (!gc
|| gc
->xid
== None
|| !gc
->isDirect
) {
2700 return MESA_GLINTEROP_INVALID_CONTEXT
;
2703 if (!gc
->vtable
->interop_export_object
) {
2705 return MESA_GLINTEROP_UNSUPPORTED
;
2708 ret
= gc
->vtable
->interop_export_object(gc
, in
, out
);
2713 #endif /* defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) */