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"
39 #include "glcontextmodes.h"
41 #ifdef GLX_DIRECT_RENDERING
42 #ifdef GLX_USE_APPLEGL
43 #include "apple_glx_context.h"
44 #include "apple_glx.h"
45 #include "glx_error.h"
46 #define GC_IS_DIRECT(gc) ((gc)->isDirect)
49 #include <X11/extensions/xf86vmode.h>
51 #define GC_IS_DIRECT(gc) ((gc)->driContext != NULL)
54 #define GC_IS_DIRECT(gc) (0)
58 #include <X11/Xlib-xcb.h>
63 static const char __glXGLXClientVendorName
[] = "Mesa Project and SGI";
64 static const char __glXGLXClientVersion
[] = "1.4";
67 /****************************************************************************/
69 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
71 static Bool windowExistsFlag
;
73 windowExistsErrorHandler(Display
* dpy
, XErrorEvent
* xerr
)
77 if (xerr
->error_code
== BadWindow
) {
78 windowExistsFlag
= GL_FALSE
;
84 * Find drawables in the local hash that have been destroyed on the
87 * \param dpy Display to destroy drawables for
88 * \param screen Screen number to destroy drawables for
91 GarbageCollectDRIDrawables(Display
* dpy
, __GLXscreenConfigs
* sc
)
94 __GLXDRIdrawable
*pdraw
;
95 XWindowAttributes xwa
;
96 int (*oldXErrorHandler
) (Display
*, XErrorEvent
*);
98 /* Set no-op error handler so Xlib doesn't bail out if the windows
99 * has alreay been destroyed on the server. */
100 XSync(dpy
, GL_FALSE
);
101 oldXErrorHandler
= XSetErrorHandler(windowExistsErrorHandler
);
103 if (__glxHashFirst(sc
->drawHash
, &draw
, (void *) &pdraw
) == 1) {
105 windowExistsFlag
= GL_TRUE
;
106 XGetWindowAttributes(dpy
, draw
, &xwa
); /* dummy request */
107 if (!windowExistsFlag
) {
108 /* Destroy the local drawable data, if the drawable no
109 longer exists in the Xserver */
110 (*pdraw
->destroyDrawable
) (pdraw
);
111 __glxHashDelete(sc
->drawHash
, draw
);
113 } while (__glxHashNext(sc
->drawHash
, &draw
, (void *) &pdraw
) == 1);
116 XSync(dpy
, GL_FALSE
);
117 XSetErrorHandler(oldXErrorHandler
);
121 * Get the __DRIdrawable for the drawable associated with a GLXContext
123 * \param dpy The display associated with \c drawable.
124 * \param drawable GLXDrawable whose __DRIdrawable part is to be retrieved.
125 * \param scrn_num If non-NULL, the drawables screen is stored there
126 * \returns A pointer to the context's __DRIdrawable on success, or NULL if
127 * the drawable is not associated with a direct-rendering context.
129 _X_HIDDEN __GLXDRIdrawable
*
130 GetGLXDRIDrawable(Display
* dpy
, GLXDrawable drawable
, int *const scrn_num
)
132 __GLXdisplayPrivate
*priv
= __glXInitialize(dpy
);
133 __GLXDRIdrawable
*pdraw
;
134 const unsigned screen_count
= ScreenCount(dpy
);
136 __GLXscreenConfigs
*psc
;
141 for (i
= 0; i
< screen_count
; i
++) {
142 psc
= &priv
->screenConfigs
[i
];
143 if (psc
->drawHash
== NULL
)
146 if (__glxHashLookup(psc
->drawHash
, drawable
, (void *) &pdraw
) == 0) {
147 if (scrn_num
!= NULL
)
160 * Get the GLX per-screen data structure associated with a GLX context.
162 * \param dpy Display for which the GLX per-screen information is to be
164 * \param scrn Screen on \c dpy for which the GLX per-screen information is
166 * \returns A pointer to the GLX per-screen data if \c dpy and \c scrn
167 * specify a valid GLX screen, or NULL otherwise.
169 * \todo Should this function validate that \c scrn is within the screen
170 * number range for \c dpy?
173 static __GLXscreenConfigs
*
174 GetGLXScreenConfigs(Display
* dpy
, int scrn
)
176 __GLXdisplayPrivate
*const priv
= __glXInitialize(dpy
);
179 && priv
->screenConfigs
!=
180 NULL
) ? &priv
->screenConfigs
[scrn
] : NULL
;
185 GetGLXPrivScreenConfig(Display
* dpy
, int scrn
, __GLXdisplayPrivate
** ppriv
,
186 __GLXscreenConfigs
** ppsc
)
188 /* Initialize the extension, if needed . This has the added value
189 * of initializing/allocating the display private
193 return GLX_NO_EXTENSION
;
196 *ppriv
= __glXInitialize(dpy
);
197 if (*ppriv
== NULL
) {
198 return GLX_NO_EXTENSION
;
201 /* Check screen number to see if its valid */
202 if ((scrn
< 0) || (scrn
>= ScreenCount(dpy
))) {
203 return GLX_BAD_SCREEN
;
206 /* Check to see if the GL is supported on this screen */
207 *ppsc
= &((*ppriv
)->screenConfigs
[scrn
]);
208 if ((*ppsc
)->configs
== NULL
) {
209 /* No support for GL on this screen regardless of visual */
210 return GLX_BAD_VISUAL
;
218 * Determine if a \c GLXFBConfig supplied by the application is valid.
220 * \param dpy Application supplied \c Display pointer.
221 * \param config Application supplied \c GLXFBConfig.
223 * \returns If the \c GLXFBConfig is valid, the a pointer to the matching
224 * \c __GLcontextModes structure is returned. Otherwise, \c NULL
227 static __GLcontextModes
*
228 ValidateGLXFBConfig(Display
* dpy
, GLXFBConfig config
)
230 __GLXdisplayPrivate
*const priv
= __glXInitialize(dpy
);
231 const unsigned num_screens
= ScreenCount(dpy
);
233 const __GLcontextModes
*modes
;
237 for (i
= 0; i
< num_screens
; i
++) {
238 for (modes
= priv
->screenConfigs
[i
].configs
; modes
!= NULL
;
239 modes
= modes
->next
) {
240 if (modes
== (__GLcontextModes
*) config
) {
241 return (__GLcontextModes
*) config
;
252 * \todo It should be possible to move the allocate of \c client_state_private
253 * later in the function for direct-rendering contexts. Direct-rendering
254 * contexts don't need to track client state, so they don't need that memory
257 * \todo Eliminate \c __glXInitVertexArrayState. Replace it with a new
258 * function called \c __glXAllocateClientState that allocates the memory and
259 * does all the initialization (including the pixel pack / unpack).
262 AllocateGLXContext(Display
* dpy
)
267 __GLXattribute
*state
;
272 opcode
= __glXSetupForCommand(dpy
);
277 /* Allocate our context record */
278 gc
= (GLXContext
) Xmalloc(sizeof(struct __GLXcontextRec
));
283 memset(gc
, 0, sizeof(struct __GLXcontextRec
));
285 state
= Xmalloc(sizeof(struct __GLXattributeRec
));
291 gc
->client_state_private
= state
;
292 memset(gc
->client_state_private
, 0, sizeof(struct __GLXattributeRec
));
293 state
->NoDrawArraysProtocol
= (getenv("LIBGL_NO_DRAWARRAYS") != NULL
);
296 ** Create a temporary buffer to hold GLX rendering commands. The size
297 ** of the buffer is selected so that the maximum number of GLX rendering
298 ** commands can fit in a single X packet and still have room in the X
299 ** packet for the GLXRenderReq header.
302 bufSize
= (XMaxRequestSize(dpy
) * 4) - sz_xGLXRenderReq
;
303 gc
->buf
= (GLubyte
*) Xmalloc(bufSize
);
305 Xfree(gc
->client_state_private
);
309 gc
->bufSize
= bufSize
;
311 /* Fill in the new context */
312 gc
->renderMode
= GL_RENDER
;
314 state
->storePack
.alignment
= 4;
315 state
->storeUnpack
.alignment
= 4;
317 gc
->attributes
.stackPointer
= &gc
->attributes
.stack
[0];
320 ** PERFORMANCE NOTE: A mode dependent fill image can speed things up.
321 ** Other code uses the fastImageUnpack bit, but it is never set
324 gc
->fastImageUnpack
= GL_FALSE
;
325 gc
->fillImage
= __glFillImage
;
327 gc
->bufEnd
= gc
->buf
+ bufSize
;
328 gc
->isDirect
= GL_FALSE
;
331 ** Set limit register so that there will be one command per packet
336 gc
->limit
= gc
->buf
+ bufSize
- __GLX_BUFFER_LIMIT_SIZE
;
339 gc
->majorOpcode
= opcode
;
342 ** Constrain the maximum drawing command size allowed to be
343 ** transfered using the X_GLXRender protocol request. First
344 ** constrain by a software limit, then constrain by the protocl
347 if (bufSize
> __GLX_RENDER_CMD_SIZE_LIMIT
) {
348 bufSize
= __GLX_RENDER_CMD_SIZE_LIMIT
;
350 if (bufSize
> __GLX_MAX_RENDER_CMD_SIZE
) {
351 bufSize
= __GLX_MAX_RENDER_CMD_SIZE
;
353 gc
->maxSmallRenderCommandSize
= bufSize
;
355 #ifdef GLX_USE_APPLEGL
356 gc
->driContext
= NULL
;
357 gc
->do_destroy
= False
;
365 * Create a new context. Exactly one of \c vis and \c fbconfig should be
368 * \param use_glx_1_3 For FBConfigs, should GLX 1.3 protocol or
369 * SGIX_fbconfig protocol be used?
370 * \param renderType For FBConfigs, what is the rendering type?
374 CreateContext(Display
* dpy
, int generic_id
,
375 const __GLcontextModes
* const fbconfig
,
376 GLXContext shareList
,
378 unsigned code
, int renderType
, int screen
)
381 #ifdef GLX_DIRECT_RENDERING
382 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, screen
);
383 #ifdef GLX_USE_APPLEGL
384 const __GLcontextModes
*mode
;
393 if (generic_id
== None
)
396 gc
= AllocateGLXContext(dpy
);
400 #ifndef GLX_USE_APPLEGL /* TODO: darwin indirect */
401 #ifdef GLX_DIRECT_RENDERING
402 if (allowDirect
&& psc
->driScreen
) {
403 gc
->driContext
= psc
->driScreen
->createContext(psc
, fbconfig
, gc
,
404 shareList
, renderType
);
405 if (gc
->driContext
!= NULL
) {
409 gc
->isDirect
= GL_TRUE
;
416 case X_GLXCreateContext
: {
417 xGLXCreateContextReq
*req
;
419 /* Send the glXCreateContext request */
420 GetReq(GLXCreateContext
, req
);
421 req
->reqType
= gc
->majorOpcode
;
422 req
->glxCode
= X_GLXCreateContext
;
423 req
->context
= gc
->xid
= XAllocID(dpy
);
424 req
->visual
= generic_id
;
425 req
->screen
= screen
;
426 req
->shareList
= shareList
? shareList
->xid
: None
;
427 req
->isDirect
= GC_IS_DIRECT(gc
);
431 case X_GLXCreateNewContext
: {
432 xGLXCreateNewContextReq
*req
;
434 /* Send the glXCreateNewContext request */
435 GetReq(GLXCreateNewContext
, req
);
436 req
->reqType
= gc
->majorOpcode
;
437 req
->glxCode
= X_GLXCreateNewContext
;
438 req
->context
= gc
->xid
= XAllocID(dpy
);
439 req
->fbconfig
= generic_id
;
440 req
->screen
= screen
;
441 req
->renderType
= renderType
;
442 req
->shareList
= shareList
? shareList
->xid
: None
;
443 req
->isDirect
= GC_IS_DIRECT(gc
);
447 case X_GLXvop_CreateContextWithConfigSGIX
: {
448 xGLXVendorPrivateWithReplyReq
*vpreq
;
449 xGLXCreateContextWithConfigSGIXReq
*req
;
451 /* Send the glXCreateNewContext request */
452 GetReqExtra(GLXVendorPrivateWithReply
,
453 sz_xGLXCreateContextWithConfigSGIXReq
-
454 sz_xGLXVendorPrivateWithReplyReq
, vpreq
);
455 req
= (xGLXCreateContextWithConfigSGIXReq
*) vpreq
;
456 req
->reqType
= gc
->majorOpcode
;
457 req
->glxCode
= X_GLXVendorPrivateWithReply
;
458 req
->vendorCode
= X_GLXvop_CreateContextWithConfigSGIX
;
459 req
->context
= gc
->xid
= XAllocID(dpy
);
460 req
->fbconfig
= generic_id
;
461 req
->screen
= screen
;
462 req
->renderType
= renderType
;
463 req
->shareList
= shareList
? shareList
->xid
: None
;
464 req
->isDirect
= GC_IS_DIRECT(gc
);
469 /* What to do here? This case is the sign of an internal error. It
470 * should never be reachable.
479 gc
->imported
= GL_FALSE
;
480 gc
->renderType
= renderType
;
482 /* TODO: darwin: Integrate with above to do indirect */
483 #ifdef GLX_USE_APPLEGL
484 mode
= _gl_context_modes_find_fbconfig(psc
->configs
,
485 fbconfig
->fbconfigID
);
488 __glXSendError(dpy
, BadValue
, fbconfig
->fbconfigID
, X_GLXCreateContext
,
490 __glXFreeContext(gc
);
494 if(apple_glx_create_context(&gc
->driContext
, dpy
, screen
, mode
,
495 shareList
? shareList
->driContext
: NULL
,
496 &errorcode
, &x11error
)) {
497 __glXSendError(dpy
, errorcode
, 0, X_GLXCreateContext
, x11error
);
498 __glXFreeContext(gc
);
502 gc
->currentContextTag
= -1;
504 gc
->isDirect
= allowDirect
;
511 glXCreateContext(Display
* dpy
, XVisualInfo
* vis
,
512 GLXContext shareList
, Bool allowDirect
)
514 const __GLcontextModes
*mode
= NULL
;
517 #ifdef GLX_DIRECT_RENDERING
518 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, vis
->screen
);
520 mode
= _gl_context_modes_find_visual(psc
->visuals
, vis
->visualid
);
524 error
.errorCode
= BadValue
;
525 error
.resourceID
= vis
->visualid
;
526 error
.sequenceNumber
= dpy
->request
;
527 error
.type
= X_Error
;
528 error
.majorCode
= __glXSetupForCommand(dpy
);
529 error
.minorCode
= X_GLXCreateContext
;
530 _XError(dpy
, &error
);
534 renderType
= mode
->rgbMode
? GLX_RGBA_TYPE
: GLX_COLOR_INDEX_TYPE
;
537 return CreateContext(dpy
, vis
->visualid
, mode
, shareList
, allowDirect
,
538 X_GLXCreateContext
, renderType
, vis
->screen
);
542 __glXFreeContext(__GLXcontext
* gc
)
545 XFree((char *) gc
->vendor
);
547 XFree((char *) gc
->renderer
);
549 XFree((char *) gc
->version
);
551 XFree((char *) gc
->extensions
);
552 __glFreeAttributeState(gc
);
553 XFree((char *) gc
->buf
);
554 Xfree((char *) gc
->client_state_private
);
560 ** Destroy the named context
563 DestroyContext(Display
* dpy
, GLXContext gc
)
565 #ifndef GLX_USE_APPLEGL /* TODO: darwin: indirect */
566 xGLXDestroyContextReq
*req
;
571 opcode
= __glXSetupForCommand(dpy
);
572 if (!opcode
|| !gc
) {
578 imported
= gc
->imported
;
581 if (gc
->currentDpy
) {
582 /* This context is bound to some thread. According to the man page,
583 * we should not actually delete the context until it's unbound.
584 * Note that we set gc->xid = None above. In MakeContextCurrent()
585 * we check for that and delete the context there.
591 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
592 /* Destroy the direct rendering context */
593 if (gc
->driContext
) {
594 (*gc
->driContext
->destroyContext
) (gc
->driContext
, gc
->psc
, dpy
);
595 gc
->driContext
= NULL
;
596 GarbageCollectDRIDrawables(dpy
, gc
->psc
);
600 __glXFreeVertexArrayState(gc
);
603 #endif /* GLX_USE_APPLEGL */
605 if (gc
->currentDpy
) {
606 #ifdef GLX_USE_APPLEGL
608 * Set the Bool that indicates that we should destroy this GLX context
609 * when the context is no longer current.
611 gc
->do_destroy
= True
;
613 /* Have to free later cuz it's in use now */
617 /* Destroy the handle if not current to anybody */
619 #ifdef GLX_USE_APPLEGL
621 apple_glx_destroy_context(&gc
->driContext
, dpy
);
623 __glXFreeContext(gc
);
625 #ifndef GLX_USE_APPLEGL
628 ** This dpy also created the server side part of the context.
629 ** Send the glXDestroyContext request.
632 GetReq(GLXDestroyContext
, req
);
633 req
->reqType
= opcode
;
634 req
->glxCode
= X_GLXDestroyContext
;
643 glXDestroyContext(Display
* dpy
, GLXContext gc
)
645 DestroyContext(dpy
, gc
);
649 ** Return the major and minor version #s for the GLX extension
652 glXQueryVersion(Display
* dpy
, int *major
, int *minor
)
654 __GLXdisplayPrivate
*priv
;
656 /* Init the extension. This fetches the major and minor version. */
657 priv
= __glXInitialize(dpy
);
662 *major
= priv
->majorVersion
;
664 *minor
= priv
->minorVersion
;
669 ** Query the existance of the GLX extension
672 glXQueryExtension(Display
* dpy
, int *errorBase
, int *eventBase
)
674 int major_op
, erb
, evb
;
677 rv
= XQueryExtension(dpy
, GLX_EXTENSION_NAME
, &major_op
, &evb
, &erb
);
688 ** Put a barrier in the token stream that forces the GL to finish its
689 ** work before X can proceed.
694 #ifndef GLX_USE_APPLEGL
697 GLXContext gc
= __glXGetCurrentContext();
698 Display
*dpy
= gc
->currentDpy
;
703 /* Flush any pending commands out */
704 __glXFlushRenderBuffer(gc
, gc
->pc
);
705 #ifdef GLX_USE_APPLEGL
708 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
709 if (gc
->driContext
) {
711 __GLXDRIdrawable
*pdraw
=
712 GetGLXDRIDrawable(dpy
, gc
->currentDrawable
, &screen
);
715 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, screen
);
717 if (psc
->driScreen
->waitGL
!= NULL
)
718 (*psc
->driScreen
->waitGL
) (pdraw
);
724 /* Send the glXWaitGL request */
726 GetReq(GLXWaitGL
, req
);
727 req
->reqType
= gc
->majorOpcode
;
728 req
->glxCode
= X_GLXWaitGL
;
729 req
->contextTag
= gc
->currentContextTag
;
732 #endif /* GLX_USE_APPLEGL */
736 ** Put a barrier in the token stream that forces X to finish its
737 ** work before GL can proceed.
742 #ifndef GLX_USE_APPLEGL
745 GLXContext gc
= __glXGetCurrentContext();
746 Display
*dpy
= gc
->currentDpy
;
751 /* Flush any pending commands out */
752 __glXFlushRenderBuffer(gc
, gc
->pc
);
754 #ifdef GLX_USE_APPLEGL
755 apple_glx_waitx(dpy
, gc
->driContext
);
757 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
758 if (gc
->driContext
) {
760 __GLXDRIdrawable
*pdraw
=
761 GetGLXDRIDrawable(dpy
, gc
->currentDrawable
, &screen
);
764 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, screen
);
765 if (psc
->driScreen
->waitX
!= NULL
)
766 (*psc
->driScreen
->waitX
) (pdraw
);
775 ** Send the glXWaitX request.
778 GetReq(GLXWaitX
, req
);
779 req
->reqType
= gc
->majorOpcode
;
780 req
->glxCode
= X_GLXWaitX
;
781 req
->contextTag
= gc
->currentContextTag
;
784 #endif /* GLX_USE_APPLEGL */
788 glXUseXFont(Font font
, int first
, int count
, int listBase
)
790 #ifndef GLX_USE_APPLEGL
791 xGLXUseXFontReq
*req
;
793 GLXContext gc
= __glXGetCurrentContext();
794 Display
*dpy
= gc
->currentDpy
;
799 /* Flush any pending commands out */
800 (void) __glXFlushRenderBuffer(gc
, gc
->pc
);
801 #ifdef GLX_USE_APPLEGL
802 DRI_glXUseXFont(font
, first
, count
, listBase
);
804 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
805 if (gc
->driContext
) {
806 DRI_glXUseXFont(font
, first
, count
, listBase
);
811 /* Send the glXUseFont request */
813 GetReq(GLXUseXFont
, req
);
814 req
->reqType
= gc
->majorOpcode
;
815 req
->glxCode
= X_GLXUseXFont
;
816 req
->contextTag
= gc
->currentContextTag
;
820 req
->listBase
= listBase
;
823 #endif /* GLX_USE_APPLEGL */
826 /************************************************************************/
829 ** Copy the source context to the destination context using the
833 glXCopyContext(Display
* dpy
, GLXContext source
,
834 GLXContext dest
, unsigned long mask
)
836 #ifdef GLX_USE_APPLEGL
837 GLXContext gc
= __glXGetCurrentContext();
841 if(apple_glx_copy_context(gc
->driContext
, source
->driContext
, dest
->driContext
,
842 mask
, &errorcode
, &x11error
)) {
843 __glXSendError(dpy
, errorcode
, 0, X_GLXCopyContext
, x11error
);
847 xGLXCopyContextReq
*req
;
848 GLXContext gc
= __glXGetCurrentContext();
852 opcode
= __glXSetupForCommand(dpy
);
857 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
858 if (gc
->driContext
) {
859 /* NOT_DONE: This does not work yet */
864 ** If the source is the current context, send its tag so that the context
865 ** can be flushed before the copy.
867 if (source
== gc
&& dpy
== gc
->currentDpy
) {
868 tag
= gc
->currentContextTag
;
874 /* Send the glXCopyContext request */
876 GetReq(GLXCopyContext
, req
);
877 req
->reqType
= opcode
;
878 req
->glxCode
= X_GLXCopyContext
;
879 req
->source
= source
? source
->xid
: None
;
880 req
->dest
= dest
? dest
->xid
: None
;
882 req
->contextTag
= tag
;
885 #endif /* GLX_USE_APPLEGL */
890 * Determine if a context uses direct rendering.
892 * \param dpy Display where the context was created.
893 * \param contextID ID of the context to be tested.
895 * \returns \c GL_TRUE if the context is direct rendering or not.
898 __glXIsDirect(Display
* dpy
, GLXContextID contextID
)
900 #ifndef GLX_USE_APPLEGL /* TODO: apple indirect */
901 return GC_IS_DIRECT(gc
);
903 #if !defined(USE_XCB)
904 xGLXIsDirectReq
*req
;
905 xGLXIsDirectReply reply
;
909 opcode
= __glXSetupForCommand(dpy
);
915 xcb_connection_t
*c
= XGetXCBConnection(dpy
);
916 xcb_glx_is_direct_reply_t
*reply
= xcb_glx_is_direct_reply(c
,
921 const Bool is_direct
= reply
->is_direct
? True
: False
;
926 /* Send the glXIsDirect request */
928 GetReq(GLXIsDirect
, req
);
929 req
->reqType
= opcode
;
930 req
->glxCode
= X_GLXIsDirect
;
931 req
->context
= contextID
;
932 _XReply(dpy
, (xReply
*) & reply
, 0, False
);
936 return reply
.isDirect
;
938 #endif /* GLX_USE_APPLEGL */
943 * Shouldn't this function \b always return \c GL_FALSE when
944 * \c GLX_DIRECT_RENDERING is not defined? Do we really need to bother with
945 * the GLX protocol here at all?
948 glXIsDirect(Display
* dpy
, GLXContext gc
)
953 else if (GC_IS_DIRECT(gc
)) {
956 return __glXIsDirect(dpy
, gc
->xid
);
960 glXCreateGLXPixmap(Display
* dpy
, XVisualInfo
* vis
, Pixmap pixmap
)
962 #ifdef GLX_USE_APPLEGL
963 int screen
= vis
->screen
;
964 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, screen
);
965 const __GLcontextModes
*modes
;
967 modes
= _gl_context_modes_find_visual(psc
->visuals
, vis
->visualid
);
969 if(apple_glx_pixmap_create(dpy
, vis
->screen
, pixmap
, modes
))
974 xGLXCreateGLXPixmapReq
*req
;
978 opcode
= __glXSetupForCommand(dpy
);
983 /* Send the glXCreateGLXPixmap request */
985 GetReq(GLXCreateGLXPixmap
, req
);
986 req
->reqType
= opcode
;
987 req
->glxCode
= X_GLXCreateGLXPixmap
;
988 req
->screen
= vis
->screen
;
989 req
->visual
= vis
->visualid
;
990 req
->pixmap
= pixmap
;
991 req
->glxpixmap
= xid
= XAllocID(dpy
);
995 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
997 /* FIXME: Maybe delay __DRIdrawable creation until the drawable
998 * is actually bound to a context... */
1000 __GLXdisplayPrivate
*const priv
= __glXInitialize(dpy
);
1001 __GLXDRIdrawable
*pdraw
;
1002 __GLXscreenConfigs
*psc
;
1003 __GLcontextModes
*modes
;
1005 psc
= &priv
->screenConfigs
[vis
->screen
];
1006 if (psc
->driScreen
== NULL
)
1008 modes
= _gl_context_modes_find_visual(psc
->visuals
, vis
->visualid
);
1009 pdraw
= psc
->driScreen
->createDrawable(psc
, pixmap
, req
->glxpixmap
, modes
);
1010 if (pdraw
== NULL
) {
1011 fprintf(stderr
, "failed to create pixmap\n");
1015 if (__glxHashInsert(psc
->drawHash
, req
->glxpixmap
, pdraw
)) {
1016 (*pdraw
->destroyDrawable
) (pdraw
);
1017 return None
; /* FIXME: Check what we're supposed to do here... */
1027 ** Destroy the named pixmap
1030 glXDestroyGLXPixmap(Display
* dpy
, GLXPixmap glxpixmap
)
1032 #ifdef GLX_USE_APPLEGL
1033 if(apple_glx_pixmap_destroy(dpy
, glxpixmap
))
1034 __glXSendError(dpy
, GLXBadPixmap
, glxpixmap
, X_GLXDestroyPixmap
, false);
1036 xGLXDestroyGLXPixmapReq
*req
;
1039 opcode
= __glXSetupForCommand(dpy
);
1044 /* Send the glXDestroyGLXPixmap request */
1046 GetReq(GLXDestroyGLXPixmap
, req
);
1047 req
->reqType
= opcode
;
1048 req
->glxCode
= X_GLXDestroyGLXPixmap
;
1049 req
->glxpixmap
= glxpixmap
;
1053 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
1056 __GLXdisplayPrivate
*const priv
= __glXInitialize(dpy
);
1057 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, glxpixmap
, &screen
);
1058 __GLXscreenConfigs
*psc
= &priv
->screenConfigs
[screen
];
1060 if (pdraw
!= NULL
) {
1061 (*pdraw
->destroyDrawable
) (pdraw
);
1062 __glxHashDelete(psc
->drawHash
, glxpixmap
);
1066 #endif /* GLX_USE_APPLEGL */
1070 glXSwapBuffers(Display
* dpy
, GLXDrawable drawable
)
1072 #ifdef GLX_USE_APPLEGL
1073 GLXContext gc
= glXGetCurrentContext();
1074 if(gc
&& apple_glx_is_current_drawable(dpy
, gc
->driContext
, drawable
)) {
1075 apple_glx_swap_buffers(gc
->driContext
);
1077 __glXSendError(dpy
, GLXBadCurrentWindow
, 0, X_GLXSwapBuffers
, false);
1084 xcb_connection_t
*c
;
1086 xGLXSwapBuffersReq
*req
;
1089 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
1090 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
, NULL
);
1092 if (pdraw
!= NULL
) {
1094 (*pdraw
->psc
->driScreen
->swapBuffers
)(pdraw
, 0, 0, 0);
1099 opcode
= __glXSetupForCommand(dpy
);
1105 ** The calling thread may or may not have a current context. If it
1106 ** does, send the context tag so the server can do a flush.
1108 gc
= __glXGetCurrentContext();
1109 if ((gc
!= NULL
) && (dpy
== gc
->currentDpy
) &&
1110 ((drawable
== gc
->currentDrawable
)
1111 || (drawable
== gc
->currentReadable
))) {
1112 tag
= gc
->currentContextTag
;
1119 c
= XGetXCBConnection(dpy
);
1120 xcb_glx_swap_buffers(c
, tag
, drawable
);
1123 /* Send the glXSwapBuffers request */
1125 GetReq(GLXSwapBuffers
, req
);
1126 req
->reqType
= opcode
;
1127 req
->glxCode
= X_GLXSwapBuffers
;
1128 req
->drawable
= drawable
;
1129 req
->contextTag
= tag
;
1133 #endif /* USE_XCB */
1134 #endif /* GLX_USE_APPLEGL */
1139 ** Return configuration information for the given display, screen and
1140 ** visual combination.
1143 glXGetConfig(Display
* dpy
, XVisualInfo
* vis
, int attribute
,
1146 __GLXdisplayPrivate
*priv
;
1147 __GLXscreenConfigs
*psc
;
1148 __GLcontextModes
*modes
;
1151 status
= GetGLXPrivScreenConfig(dpy
, vis
->screen
, &priv
, &psc
);
1152 if (status
== Success
) {
1153 modes
= _gl_context_modes_find_visual(psc
->visuals
, vis
->visualid
);
1155 /* Lookup attribute after first finding a match on the visual */
1156 if (modes
!= NULL
) {
1157 return _gl_get_context_mode_data(modes
, attribute
, value_return
);
1160 status
= GLX_BAD_VISUAL
;
1164 ** If we can't find the config for this visual, this visual is not
1165 ** supported by the OpenGL implementation on the server.
1167 if ((status
== GLX_BAD_VISUAL
) && (attribute
== GLX_USE_GL
)) {
1168 *value_return
= GL_FALSE
;
1175 /************************************************************************/
1178 init_fbconfig_for_chooser(__GLcontextModes
* config
,
1179 GLboolean fbconfig_style_tags
)
1181 memset(config
, 0, sizeof(__GLcontextModes
));
1182 config
->visualID
= (XID
) GLX_DONT_CARE
;
1183 config
->visualType
= GLX_DONT_CARE
;
1185 /* glXChooseFBConfig specifies different defaults for these two than
1188 if (fbconfig_style_tags
) {
1189 config
->rgbMode
= GL_TRUE
;
1190 config
->doubleBufferMode
= GLX_DONT_CARE
;
1193 config
->visualRating
= GLX_DONT_CARE
;
1194 config
->transparentPixel
= GLX_NONE
;
1195 config
->transparentRed
= GLX_DONT_CARE
;
1196 config
->transparentGreen
= GLX_DONT_CARE
;
1197 config
->transparentBlue
= GLX_DONT_CARE
;
1198 config
->transparentAlpha
= GLX_DONT_CARE
;
1199 config
->transparentIndex
= GLX_DONT_CARE
;
1201 config
->drawableType
= GLX_WINDOW_BIT
;
1202 config
->renderType
=
1203 (config
->rgbMode
) ? GLX_RGBA_BIT
: GLX_COLOR_INDEX_BIT
;
1204 config
->xRenderable
= GLX_DONT_CARE
;
1205 config
->fbconfigID
= (GLXFBConfigID
) (GLX_DONT_CARE
);
1207 config
->swapMethod
= GLX_DONT_CARE
;
1210 #define MATCH_DONT_CARE( param ) \
1212 if ( ((int) a-> param != (int) GLX_DONT_CARE) \
1213 && (a-> param != b-> param) ) { \
1218 #define MATCH_MINIMUM( param ) \
1220 if ( ((int) a-> param != (int) GLX_DONT_CARE) \
1221 && (a-> param > b-> param) ) { \
1226 #define MATCH_EXACT( param ) \
1228 if ( a-> param != b-> param) { \
1234 * Determine if two GLXFBConfigs are compatible.
1236 * \param a Application specified config to test.
1237 * \param b Server specified config to test against \c a.
1240 fbconfigs_compatible(const __GLcontextModes
* const a
,
1241 const __GLcontextModes
* const b
)
1243 MATCH_DONT_CARE(doubleBufferMode
);
1244 MATCH_DONT_CARE(visualType
);
1245 MATCH_DONT_CARE(visualRating
);
1246 MATCH_DONT_CARE(xRenderable
);
1247 MATCH_DONT_CARE(fbconfigID
);
1248 MATCH_DONT_CARE(swapMethod
);
1250 MATCH_MINIMUM(rgbBits
);
1251 MATCH_MINIMUM(numAuxBuffers
);
1252 MATCH_MINIMUM(redBits
);
1253 MATCH_MINIMUM(greenBits
);
1254 MATCH_MINIMUM(blueBits
);
1255 MATCH_MINIMUM(alphaBits
);
1256 MATCH_MINIMUM(depthBits
);
1257 MATCH_MINIMUM(stencilBits
);
1258 MATCH_MINIMUM(accumRedBits
);
1259 MATCH_MINIMUM(accumGreenBits
);
1260 MATCH_MINIMUM(accumBlueBits
);
1261 MATCH_MINIMUM(accumAlphaBits
);
1262 MATCH_MINIMUM(sampleBuffers
);
1263 MATCH_MINIMUM(maxPbufferWidth
);
1264 MATCH_MINIMUM(maxPbufferHeight
);
1265 MATCH_MINIMUM(maxPbufferPixels
);
1266 MATCH_MINIMUM(samples
);
1268 MATCH_DONT_CARE(stereoMode
);
1271 if (((a
->drawableType
& b
->drawableType
) == 0)
1272 || ((a
->renderType
& b
->renderType
) == 0)) {
1277 /* There is a bug in a few of the XFree86 DDX drivers. They contain
1278 * visuals with a "transparent type" of 0 when they really mean GLX_NONE.
1279 * Technically speaking, it is a bug in the DDX driver, but there is
1280 * enough of an installed base to work around the problem here. In any
1281 * case, 0 is not a valid value of the transparent type, so we'll treat 0
1282 * from the app as GLX_DONT_CARE. We'll consider GLX_NONE from the app and
1283 * 0 from the server to be a match to maintain backward compatibility with
1284 * the (broken) drivers.
1287 if (a
->transparentPixel
!= (int) GLX_DONT_CARE
&& a
->transparentPixel
!= 0) {
1288 if (a
->transparentPixel
== GLX_NONE
) {
1289 if (b
->transparentPixel
!= GLX_NONE
&& b
->transparentPixel
!= 0)
1293 MATCH_EXACT(transparentPixel
);
1296 switch (a
->transparentPixel
) {
1297 case GLX_TRANSPARENT_RGB
:
1298 MATCH_DONT_CARE(transparentRed
);
1299 MATCH_DONT_CARE(transparentGreen
);
1300 MATCH_DONT_CARE(transparentBlue
);
1301 MATCH_DONT_CARE(transparentAlpha
);
1304 case GLX_TRANSPARENT_INDEX
:
1305 MATCH_DONT_CARE(transparentIndex
);
1317 /* There's some trickly language in the GLX spec about how this is supposed
1318 * to work. Basically, if a given component size is either not specified
1319 * or the requested size is zero, it is supposed to act like PERFER_SMALLER.
1320 * Well, that's really hard to do with the code as-is. This behavior is
1321 * closer to correct, but still not technically right.
1323 #define PREFER_LARGER_OR_ZERO(comp) \
1325 if ( ((*a)-> comp) != ((*b)-> comp) ) { \
1326 if ( ((*a)-> comp) == 0 ) { \
1329 else if ( ((*b)-> comp) == 0 ) { \
1333 return ((*b)-> comp) - ((*a)-> comp) ; \
1338 #define PREFER_LARGER(comp) \
1340 if ( ((*a)-> comp) != ((*b)-> comp) ) { \
1341 return ((*b)-> comp) - ((*a)-> comp) ; \
1345 #define PREFER_SMALLER(comp) \
1347 if ( ((*a)-> comp) != ((*b)-> comp) ) { \
1348 return ((*a)-> comp) - ((*b)-> comp) ; \
1353 * Compare two GLXFBConfigs. This function is intended to be used as the
1354 * compare function passed in to qsort.
1356 * \returns If \c a is a "better" config, according to the specification of
1357 * SGIX_fbconfig, a number less than zero is returned. If \c b is
1358 * better, then a number greater than zero is return. If both are
1359 * equal, zero is returned.
1360 * \sa qsort, glXChooseVisual, glXChooseFBConfig, glXChooseFBConfigSGIX
1363 fbconfig_compare(const __GLcontextModes
* const *const a
,
1364 const __GLcontextModes
* const *const b
)
1366 /* The order of these comparisons must NOT change. It is defined by
1367 * the GLX 1.3 spec and ARB_multisample.
1370 PREFER_SMALLER(visualSelectGroup
);
1372 /* The sort order for the visualRating is GLX_NONE, GLX_SLOW, and
1373 * GLX_NON_CONFORMANT_CONFIG. It just so happens that this is the
1374 * numerical sort order of the enums (0x8000, 0x8001, and 0x800D).
1376 PREFER_SMALLER(visualRating
);
1378 /* This isn't quite right. It is supposed to compare the sum of the
1379 * components the user specifically set minimums for.
1381 PREFER_LARGER_OR_ZERO(redBits
);
1382 PREFER_LARGER_OR_ZERO(greenBits
);
1383 PREFER_LARGER_OR_ZERO(blueBits
);
1384 PREFER_LARGER_OR_ZERO(alphaBits
);
1386 PREFER_SMALLER(rgbBits
);
1388 if (((*a
)->doubleBufferMode
!= (*b
)->doubleBufferMode
)) {
1389 /* Prefer single-buffer.
1391 return (!(*a
)->doubleBufferMode
) ? -1 : 1;
1394 PREFER_SMALLER(numAuxBuffers
);
1396 PREFER_LARGER_OR_ZERO(depthBits
);
1397 PREFER_SMALLER(stencilBits
);
1399 /* This isn't quite right. It is supposed to compare the sum of the
1400 * components the user specifically set minimums for.
1402 PREFER_LARGER_OR_ZERO(accumRedBits
);
1403 PREFER_LARGER_OR_ZERO(accumGreenBits
);
1404 PREFER_LARGER_OR_ZERO(accumBlueBits
);
1405 PREFER_LARGER_OR_ZERO(accumAlphaBits
);
1407 PREFER_SMALLER(visualType
);
1409 /* None of the multisample specs say where this comparison should happen,
1410 * so I put it near the end.
1412 PREFER_SMALLER(sampleBuffers
);
1413 PREFER_SMALLER(samples
);
1415 /* None of the pbuffer or fbconfig specs say that this comparison needs
1416 * to happen at all, but it seems like it should.
1418 PREFER_LARGER(maxPbufferWidth
);
1419 PREFER_LARGER(maxPbufferHeight
);
1420 PREFER_LARGER(maxPbufferPixels
);
1427 * Selects and sorts a subset of the supplied configs based on the attributes.
1428 * This function forms to basis of \c glXChooseVisual, \c glXChooseFBConfig,
1429 * and \c glXChooseFBConfigSGIX.
1431 * \param configs Array of pointers to possible configs. The elements of
1432 * this array that do not meet the criteria will be set to
1433 * NULL. The remaining elements will be sorted according to
1434 * the various visual / FBConfig selection rules.
1435 * \param num_configs Number of elements in the \c configs array.
1436 * \param attribList Attributes used select from \c configs. This array is
1437 * terminated by a \c None tag. The array can either take
1438 * the form expected by \c glXChooseVisual (where boolean
1439 * tags do not have a value) or by \c glXChooseFBConfig
1440 * (where every tag has a value).
1441 * \param fbconfig_style_tags Selects whether \c attribList is in
1442 * \c glXChooseVisual style or
1443 * \c glXChooseFBConfig style.
1444 * \returns The number of valid elements left in \c configs.
1446 * \sa glXChooseVisual, glXChooseFBConfig, glXChooseFBConfigSGIX
1449 choose_visual(__GLcontextModes
** configs
, int num_configs
,
1450 const int *attribList
, GLboolean fbconfig_style_tags
)
1452 __GLcontextModes test_config
;
1456 /* This is a fairly direct implementation of the selection method
1457 * described by GLX_SGIX_fbconfig. Start by culling out all the
1458 * configs that are not compatible with the selected parameter
1462 init_fbconfig_for_chooser(&test_config
, fbconfig_style_tags
);
1463 __glXInitializeVisualConfigFromTags(&test_config
, 512,
1464 (const INT32
*) attribList
,
1465 GL_TRUE
, fbconfig_style_tags
);
1468 for (i
= 0; i
< num_configs
; i
++) {
1469 if (fbconfigs_compatible(&test_config
, configs
[i
])) {
1470 configs
[base
] = configs
[i
];
1479 if (base
< num_configs
) {
1480 (void) memset(&configs
[base
], 0, sizeof(void *) * (num_configs
- base
));
1483 /* After the incompatible configs are removed, the resulting
1484 * list is sorted according to the rules set out in the various
1488 qsort(configs
, base
, sizeof(__GLcontextModes
*),
1489 (int (*)(const void *, const void *)) fbconfig_compare
);
1497 ** Return the visual that best matches the template. Return None if no
1498 ** visual matches the template.
1500 PUBLIC XVisualInfo
*
1501 glXChooseVisual(Display
* dpy
, int screen
, int *attribList
)
1503 XVisualInfo
*visualList
= NULL
;
1504 __GLXdisplayPrivate
*priv
;
1505 __GLXscreenConfigs
*psc
;
1506 __GLcontextModes test_config
;
1507 __GLcontextModes
*modes
;
1508 const __GLcontextModes
*best_config
= NULL
;
1511 ** Get a list of all visuals, return if list is empty
1513 if (GetGLXPrivScreenConfig(dpy
, screen
, &priv
, &psc
) != Success
) {
1519 ** Build a template from the defaults and the attribute list
1520 ** Free visual list and return if an unexpected token is encountered
1522 init_fbconfig_for_chooser(&test_config
, GL_FALSE
);
1523 __glXInitializeVisualConfigFromTags(&test_config
, 512,
1524 (const INT32
*) attribList
,
1528 ** Eliminate visuals that don't meet minimum requirements
1529 ** Compute a score for those that do
1530 ** Remember which visual, if any, got the highest score
1531 ** If no visual is acceptable, return None
1532 ** Otherwise, create an XVisualInfo list with just the selected X visual
1535 for (modes
= psc
->visuals
; modes
!= NULL
; modes
= modes
->next
) {
1536 if (fbconfigs_compatible(&test_config
, modes
)
1537 && ((best_config
== NULL
)
1540 ((const __GLcontextModes
* const *const) &modes
,
1541 &best_config
) < 0))) {
1542 XVisualInfo visualTemplate
;
1543 XVisualInfo
*newList
;
1546 visualTemplate
.screen
= screen
;
1547 visualTemplate
.visualid
= modes
->visualID
;
1548 newList
= XGetVisualInfo(dpy
, VisualScreenMask
| VisualIDMask
,
1549 &visualTemplate
, &i
);
1553 visualList
= newList
;
1554 best_config
= modes
;
1559 #ifdef GLX_USE_APPLEGL
1560 if(visualList
&& getenv("LIBGL_DUMP_VISUALID")) {
1561 printf("visualid 0x%lx\n", visualList
[0].visualid
);
1570 glXQueryExtensionsString(Display
* dpy
, int screen
)
1572 __GLXscreenConfigs
*psc
;
1573 __GLXdisplayPrivate
*priv
;
1575 if (GetGLXPrivScreenConfig(dpy
, screen
, &priv
, &psc
) != Success
) {
1579 if (!psc
->effectiveGLXexts
) {
1580 if (!psc
->serverGLXexts
) {
1581 psc
->serverGLXexts
=
1582 __glXQueryServerString(dpy
, priv
->majorOpcode
, screen
,
1586 __glXCalculateUsableExtensions(psc
,
1587 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
1588 (psc
->driScreen
!= NULL
),
1592 priv
->minorVersion
);
1595 return psc
->effectiveGLXexts
;
1599 glXGetClientString(Display
* dpy
, int name
)
1605 return (__glXGLXClientVendorName
);
1607 return (__glXGLXClientVersion
);
1608 case GLX_EXTENSIONS
:
1609 return (__glXGetClientExtensions());
1616 glXQueryServerString(Display
* dpy
, int screen
, int name
)
1618 __GLXscreenConfigs
*psc
;
1619 __GLXdisplayPrivate
*priv
;
1623 if (GetGLXPrivScreenConfig(dpy
, screen
, &priv
, &psc
) != Success
) {
1629 str
= &priv
->serverGLXvendor
;
1632 str
= &priv
->serverGLXversion
;
1634 case GLX_EXTENSIONS
:
1635 str
= &psc
->serverGLXexts
;
1642 *str
= __glXQueryServerString(dpy
, priv
->majorOpcode
, screen
, name
);
1649 __glXClientInfo(Display
* dpy
, int opcode
)
1651 char *ext_str
= __glXGetClientGLExtensionString();
1652 int size
= strlen(ext_str
) + 1;
1655 xcb_connection_t
*c
= XGetXCBConnection(dpy
);
1656 xcb_glx_client_info(c
,
1657 GLX_MAJOR_VERSION
, GLX_MINOR_VERSION
, size
, ext_str
);
1659 xGLXClientInfoReq
*req
;
1661 /* Send the glXClientInfo request */
1663 GetReq(GLXClientInfo
, req
);
1664 req
->reqType
= opcode
;
1665 req
->glxCode
= X_GLXClientInfo
;
1666 req
->major
= GLX_MAJOR_VERSION
;
1667 req
->minor
= GLX_MINOR_VERSION
;
1669 req
->length
+= (size
+ 3) >> 2;
1670 req
->numbytes
= size
;
1671 Data(dpy
, ext_str
, size
);
1675 #endif /* USE_XCB */
1682 ** EXT_import_context
1686 glXGetCurrentDisplay(void)
1688 GLXContext gc
= __glXGetCurrentContext();
1691 return gc
->currentDpy
;
1695 GLX_ALIAS(Display
*, glXGetCurrentDisplayEXT
, (void), (),
1696 glXGetCurrentDisplay
)
1698 #ifndef GLX_USE_APPLEGL
1700 * Used internally by libGL to send \c xGLXQueryContextinfoExtReq requests
1703 * \param dpy Display where \c ctx was created.
1704 * \param ctx Context to query.
1705 * \returns \c Success on success. \c GLX_BAD_CONTEXT if \c ctx is invalid,
1706 * or zero if the request failed due to internal problems (i.e.,
1707 * unable to allocate temporary memory, etc.)
1710 * This function dynamically determines whether to use the EXT_import_context
1711 * version of the protocol or the GLX 1.3 version of the protocol.
1713 static int __glXQueryContextInfo(Display
* dpy
, GLXContext ctx
)
1715 __GLXdisplayPrivate
*priv
= __glXInitialize(dpy
);
1716 xGLXQueryContextReply reply
;
1722 return GLX_BAD_CONTEXT
;
1724 opcode
= __glXSetupForCommand(dpy
);
1729 /* Send the glXQueryContextInfoEXT request */
1732 if ((priv
->majorVersion
> 1) || (priv
->minorVersion
>= 3)) {
1733 xGLXQueryContextReq
*req
;
1735 GetReq(GLXQueryContext
, req
);
1737 req
->reqType
= opcode
;
1738 req
->glxCode
= X_GLXQueryContext
;
1739 req
->context
= (unsigned int) (ctx
->xid
);
1742 xGLXVendorPrivateReq
*vpreq
;
1743 xGLXQueryContextInfoEXTReq
*req
;
1745 GetReqExtra(GLXVendorPrivate
,
1746 sz_xGLXQueryContextInfoEXTReq
- sz_xGLXVendorPrivateReq
,
1748 req
= (xGLXQueryContextInfoEXTReq
*) vpreq
;
1749 req
->reqType
= opcode
;
1750 req
->glxCode
= X_GLXVendorPrivateWithReply
;
1751 req
->vendorCode
= X_GLXvop_QueryContextInfoEXT
;
1752 req
->context
= (unsigned int) (ctx
->xid
);
1755 _XReply(dpy
, (xReply
*) & reply
, 0, False
);
1757 numValues
= reply
.n
;
1760 else if (numValues
> __GLX_MAX_CONTEXT_PROPS
)
1763 int *propList
, *pProp
;
1766 nPropListBytes
= numValues
<< 3;
1767 propList
= (int *) Xmalloc(nPropListBytes
);
1768 if (NULL
== propList
) {
1774 _XRead(dpy
, (char *) propList
, nPropListBytes
);
1776 for (i
= 0; i
< numValues
; i
++) {
1778 case GLX_SHARE_CONTEXT_EXT
:
1779 ctx
->share_xid
= *pProp
++;
1781 case GLX_VISUAL_ID_EXT
:
1783 _gl_context_modes_find_visual(ctx
->psc
->visuals
, *pProp
++);
1786 ctx
->screen
= *pProp
++;
1788 case GLX_FBCONFIG_ID
:
1790 _gl_context_modes_find_fbconfig(ctx
->psc
->configs
,
1793 case GLX_RENDER_TYPE
:
1794 ctx
->renderType
= *pProp
++;
1801 Xfree((char *) propList
);
1813 glXQueryContext(Display
* dpy
, GLXContext ctx
, int attribute
, int *value
)
1815 #ifndef GLX_USE_APPLEGL
1818 /* get the information from the server if we don't have it already */
1819 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
1820 if (!ctx
->driContext
&& (ctx
->mode
== NULL
)) {
1822 if (ctx
->mode
== NULL
) {
1824 retVal
= __glXQueryContextInfo(dpy
, ctx
);
1825 if (Success
!= retVal
)
1830 switch (attribute
) {
1831 #ifndef GLX_USE_APPLEGL
1832 case GLX_SHARE_CONTEXT_EXT
:
1833 *value
= (int) (ctx
->share_xid
);
1835 case GLX_VISUAL_ID_EXT
:
1836 *value
= ctx
->mode
? ctx
->mode
->visualID
: None
;
1840 *value
= (int) (ctx
->screen
);
1842 case GLX_FBCONFIG_ID
:
1843 *value
= ctx
->mode
? ctx
->mode
->fbconfigID
: None
;
1845 case GLX_RENDER_TYPE
:
1846 *value
= (int) (ctx
->renderType
);
1849 return GLX_BAD_ATTRIBUTE
;
1855 GLX_ALIAS(int, glXQueryContextInfoEXT
,
1856 (Display
* dpy
, GLXContext ctx
, int attribute
, int *value
),
1857 (dpy
, ctx
, attribute
, value
), glXQueryContext
)
1859 PUBLIC GLXContextID
glXGetContextIDEXT(const GLXContext ctx
)
1865 glXImportContextEXT(Display
* dpy
, GLXContextID contextID
)
1867 #ifdef GLX_USE_APPLEGL
1872 if (contextID
== None
) {
1875 if (__glXIsDirect(dpy
, contextID
)) {
1879 ctx
= AllocateGLXContext(dpy
);
1881 ctx
->xid
= contextID
;
1882 ctx
->imported
= GL_TRUE
;
1884 if (Success
!= __glXQueryContextInfo(dpy
, ctx
)) {
1885 __glXFreeContext(ctx
);
1894 glXFreeContextEXT(Display
* dpy
, GLXContext ctx
)
1896 DestroyContext(dpy
, ctx
);
1902 * GLX 1.3 functions - these are just stubs for now!
1905 PUBLIC GLXFBConfig
*
1906 glXChooseFBConfig(Display
* dpy
, int screen
,
1907 const int *attribList
, int *nitems
)
1909 __GLcontextModes
**config_list
;
1913 config_list
= (__GLcontextModes
**)
1914 glXGetFBConfigs(dpy
, screen
, &list_size
);
1916 if ((config_list
!= NULL
) && (list_size
> 0) && (attribList
!= NULL
)) {
1917 list_size
= choose_visual(config_list
, list_size
, attribList
, GL_TRUE
);
1918 if (list_size
== 0) {
1924 *nitems
= list_size
;
1925 return (GLXFBConfig
*) config_list
;
1930 glXCreateNewContext(Display
* dpy
, GLXFBConfig config
,
1931 int renderType
, GLXContext shareList
, Bool allowDirect
)
1933 const __GLcontextModes
*const fbconfig
=
1934 (const __GLcontextModes
*const) config
;
1936 return CreateContext(dpy
, fbconfig
->fbconfigID
, fbconfig
, shareList
,
1937 allowDirect
, X_GLXCreateNewContext
, renderType
,
1943 glXGetCurrentReadDrawable(void)
1945 GLXContext gc
= __glXGetCurrentContext();
1946 return gc
->currentReadable
;
1950 PUBLIC GLXFBConfig
*
1951 glXGetFBConfigs(Display
* dpy
, int screen
, int *nelements
)
1953 __GLXdisplayPrivate
*priv
= __glXInitialize(dpy
);
1954 __GLcontextModes
**config
= NULL
;
1958 if (priv
&& (priv
->screenConfigs
!= NULL
)
1959 && (screen
>= 0) && (screen
<= ScreenCount(dpy
))
1960 && (priv
->screenConfigs
[screen
].configs
!= NULL
)
1961 && (priv
->screenConfigs
[screen
].configs
->fbconfigID
1962 != (int) GLX_DONT_CARE
)) {
1963 unsigned num_configs
= 0;
1964 __GLcontextModes
*modes
;
1967 for (modes
= priv
->screenConfigs
[screen
].configs
; modes
!= NULL
;
1968 modes
= modes
->next
) {
1969 if (modes
->fbconfigID
!= (int) GLX_DONT_CARE
) {
1974 config
= (__GLcontextModes
**) Xmalloc(sizeof(__GLcontextModes
*)
1976 if (config
!= NULL
) {
1977 *nelements
= num_configs
;
1979 for (modes
= priv
->screenConfigs
[screen
].configs
; modes
!= NULL
;
1980 modes
= modes
->next
) {
1981 if (modes
->fbconfigID
!= (int) GLX_DONT_CARE
) {
1988 return (GLXFBConfig
*) config
;
1993 glXGetFBConfigAttrib(Display
* dpy
, GLXFBConfig config
,
1994 int attribute
, int *value
)
1996 __GLcontextModes
*const modes
= ValidateGLXFBConfig(dpy
, config
);
1998 return (modes
!= NULL
)
1999 ? _gl_get_context_mode_data(modes
, attribute
, value
)
2004 PUBLIC XVisualInfo
*
2005 glXGetVisualFromFBConfig(Display
* dpy
, GLXFBConfig config
)
2007 XVisualInfo visualTemplate
;
2008 __GLcontextModes
*fbconfig
= (__GLcontextModes
*) config
;
2012 ** Get a list of all visuals, return if list is empty
2014 visualTemplate
.visualid
= fbconfig
->visualID
;
2015 return XGetVisualInfo(dpy
, VisualIDMask
, &visualTemplate
, &count
);
2018 #ifndef GLX_USE_APPLEGL
2020 ** GLX_SGI_swap_control
2023 __glXSwapIntervalSGI(int interval
)
2025 xGLXVendorPrivateReq
*req
;
2026 GLXContext gc
= __glXGetCurrentContext();
2027 __GLXscreenConfigs
*psc
;
2029 CARD32
*interval_ptr
;
2033 return GLX_BAD_CONTEXT
;
2036 if (interval
<= 0) {
2037 return GLX_BAD_VALUE
;
2040 #ifdef __DRI_SWAP_CONTROL
2041 if (gc
->driContext
) {
2042 __GLXscreenConfigs
* const psc
= GetGLXScreenConfigs( gc
->currentDpy
,
2044 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(gc
->currentDpy
,
2045 gc
->currentDrawable
,
2047 if (psc
->swapControl
!= NULL
&& pdraw
!= NULL
) {
2048 psc
->swapControl
->setSwapInterval(pdraw
->driDrawable
, interval
);
2051 else if (pdraw
== NULL
) {
2052 return GLX_BAD_CONTEXT
;
2056 psc
= GetGLXScreenConfigs( gc
->currentDpy
, gc
->screen
);
2058 #ifdef GLX_DIRECT_RENDERING
2059 if (gc
->driContext
&& psc
->driScreen
&& psc
->driScreen
->setSwapInterval
) {
2060 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(gc
->currentDpy
,
2061 gc
->currentDrawable
,
2063 psc
->driScreen
->setSwapInterval(pdraw
, interval
);
2068 dpy
= gc
->currentDpy
;
2069 opcode
= __glXSetupForCommand(dpy
);
2074 /* Send the glXSwapIntervalSGI request */
2076 GetReqExtra(GLXVendorPrivate
, sizeof(CARD32
), req
);
2077 req
->reqType
= opcode
;
2078 req
->glxCode
= X_GLXVendorPrivate
;
2079 req
->vendorCode
= X_GLXvop_SwapIntervalSGI
;
2080 req
->contextTag
= gc
->currentContextTag
;
2082 interval_ptr
= (CARD32
*) (req
+ 1);
2083 *interval_ptr
= interval
;
2094 ** GLX_MESA_swap_control
2097 __glXSwapIntervalMESA(unsigned int interval
)
2099 GLXContext gc
= __glXGetCurrentContext();
2101 #ifdef __DRI_SWAP_CONTROL
2102 if (gc
!= NULL
&& gc
->driContext
) {
2103 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(gc
->currentDpy
,
2106 if ((psc
!= NULL
) && (psc
->driScreen
!= NULL
)) {
2107 __GLXDRIdrawable
*pdraw
=
2108 GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
, NULL
);
2109 if (psc
->swapControl
!= NULL
&& pdraw
!= NULL
) {
2110 psc
->swapControl
->setSwapInterval(pdraw
->driDrawable
, interval
);
2117 #ifdef GLX_DIRECT_RENDERING
2118 if (gc
!= NULL
&& gc
->driContext
) {
2119 __GLXscreenConfigs
*psc
;
2121 psc
= GetGLXScreenConfigs( gc
->currentDpy
, gc
->screen
);
2122 if (psc
->driScreen
&& psc
->driScreen
->setSwapInterval
) {
2123 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(gc
->currentDpy
,
2124 gc
->currentDrawable
, NULL
);
2125 psc
->driScreen
->setSwapInterval(pdraw
, interval
);
2131 return GLX_BAD_CONTEXT
;
2136 __glXGetSwapIntervalMESA(void)
2138 #ifdef __DRI_SWAP_CONTROL
2139 GLXContext gc
= __glXGetCurrentContext();
2141 if (gc
!= NULL
&& gc
->driContext
) {
2142 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(gc
->currentDpy
,
2145 if ((psc
!= NULL
) && (psc
->driScreen
!= NULL
)) {
2146 __GLXDRIdrawable
*pdraw
=
2147 GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
, NULL
);
2148 if (psc
->swapControl
!= NULL
&& pdraw
!= NULL
) {
2149 return psc
->swapControl
->getSwapInterval(pdraw
->driDrawable
);
2154 if (gc
!= NULL
&& gc
->driContext
) {
2155 __GLXscreenConfigs
*psc
;
2157 psc
= GetGLXScreenConfigs( gc
->currentDpy
, gc
->screen
);
2158 if (psc
->driScreen
&& psc
->driScreen
->getSwapInterval
) {
2159 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(gc
->currentDpy
,
2160 gc
->currentDrawable
, NULL
);
2161 return psc
->driScreen
->getSwapInterval(pdraw
);
2170 ** GLX_MESA_swap_frame_usage
2174 __glXBeginFrameTrackingMESA(Display
* dpy
, GLXDrawable drawable
)
2176 int status
= GLX_BAD_CONTEXT
;
2177 #ifdef __DRI_FRAME_TRACKING
2179 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
, &screen
);
2180 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, screen
);
2182 if (pdraw
!= NULL
&& psc
->frameTracking
!= NULL
)
2183 status
= psc
->frameTracking
->frameTracking(pdraw
->driDrawable
, GL_TRUE
);
2193 __glXEndFrameTrackingMESA(Display
* dpy
, GLXDrawable drawable
)
2195 int status
= GLX_BAD_CONTEXT
;
2196 #ifdef __DRI_FRAME_TRACKING
2198 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
, &screen
);
2199 __GLXscreenConfigs
*psc
= GetGLXScreenConfigs(dpy
, screen
);
2201 if (pdraw
!= NULL
&& psc
->frameTracking
!= NULL
)
2202 status
= psc
->frameTracking
->frameTracking(pdraw
->driDrawable
,
2213 __glXGetFrameUsageMESA(Display
* dpy
, GLXDrawable drawable
, GLfloat
* usage
)
2215 int status
= GLX_BAD_CONTEXT
;
2216 #ifdef __DRI_FRAME_TRACKING
2218 __GLXDRIdrawable
*const pdraw
= GetGLXDRIDrawable(dpy
, drawable
, &screen
);
2219 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, screen
);
2221 if (pdraw
!= NULL
&& psc
->frameTracking
!= NULL
) {
2222 int64_t sbc
, missedFrames
;
2223 float lastMissedUsage
;
2225 status
= psc
->frameTracking
->queryFrameTracking(pdraw
->driDrawable
,
2241 __glXQueryFrameTrackingMESA(Display
* dpy
, GLXDrawable drawable
,
2242 int64_t * sbc
, int64_t * missedFrames
,
2243 GLfloat
* lastMissedUsage
)
2245 int status
= GLX_BAD_CONTEXT
;
2246 #ifdef __DRI_FRAME_TRACKING
2248 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
, &screen
);
2249 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, screen
);
2251 if (pdraw
!= NULL
&& psc
->frameTracking
!= NULL
) {
2254 status
= psc
->frameTracking
->queryFrameTracking(pdraw
->driDrawable
,
2263 (void) missedFrames
;
2264 (void) lastMissedUsage
;
2271 ** GLX_SGI_video_sync
2274 __glXGetVideoSyncSGI(unsigned int *count
)
2276 int64_t ust
, msc
, sbc
;
2278 GLXContext gc
= __glXGetCurrentContext();
2279 __GLXscreenConfigs
*psc
;
2280 __GLXDRIdrawable
*pdraw
;
2283 return GLX_BAD_CONTEXT
;
2285 #ifdef GLX_DIRECT_RENDERING
2286 if (!gc
->driContext
)
2287 return GLX_BAD_CONTEXT
;
2290 psc
= GetGLXScreenConfigs(gc
->currentDpy
, gc
->screen
);
2291 pdraw
= GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
, NULL
);
2293 /* FIXME: Looking at the GLX_SGI_video_sync spec in the extension registry,
2294 * FIXME: there should be a GLX encoding for this call. I can find no
2295 * FIXME: documentation for the GLX encoding.
2297 #ifdef __DRI_MEDIA_STREAM_COUNTER
2298 if ( psc
->msc
&& psc
->driScreen
) {
2299 ret
= (*psc
->msc
->getDrawableMSC
)(psc
->__driScreen
,
2300 pdraw
->driDrawable
, &msc
);
2301 *count
= (unsigned) msc
;
2303 return (ret
== 0) ? 0 : GLX_BAD_CONTEXT
;
2306 if (psc
->driScreen
&& psc
->driScreen
->getDrawableMSC
) {
2307 ret
= psc
->driScreen
->getDrawableMSC(psc
, pdraw
, &ust
, &msc
, &sbc
);
2308 *count
= (unsigned) msc
;
2309 return (ret
== True
) ? 0 : GLX_BAD_CONTEXT
;
2312 return GLX_BAD_CONTEXT
;
2316 __glXWaitVideoSyncSGI(int divisor
, int remainder
, unsigned int *count
)
2318 GLXContext gc
= __glXGetCurrentContext();
2319 __GLXscreenConfigs
*psc
;
2320 __GLXDRIdrawable
*pdraw
;
2321 int64_t ust
, msc
, sbc
;
2324 if (divisor
<= 0 || remainder
< 0)
2325 return GLX_BAD_VALUE
;
2328 return GLX_BAD_CONTEXT
;
2330 #ifdef GLX_DIRECT_RENDERING
2331 if (!gc
->driContext
)
2332 return GLX_BAD_CONTEXT
;
2335 psc
= GetGLXScreenConfigs( gc
->currentDpy
, gc
->screen
);
2336 pdraw
= GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
, NULL
);
2338 #ifdef __DRI_MEDIA_STREAM_COUNTER
2339 if (psc
->msc
!= NULL
&& psc
->driScreen
) {
2340 ret
= (*psc
->msc
->waitForMSC
)(pdraw
->driDrawable
, 0,
2341 divisor
, remainder
, &msc
, &sbc
);
2342 *count
= (unsigned) msc
;
2343 return (ret
== 0) ? 0 : GLX_BAD_CONTEXT
;
2346 if (psc
->driScreen
&& psc
->driScreen
->waitForMSC
) {
2347 ret
= psc
->driScreen
->waitForMSC(pdraw
, 0, divisor
, remainder
, &ust
, &msc
,
2349 *count
= (unsigned) msc
;
2350 return (ret
== True
) ? 0 : GLX_BAD_CONTEXT
;
2353 return GLX_BAD_CONTEXT
;
2356 #endif /* GLX_USE_APPLEGL */
2359 ** GLX_SGIX_fbconfig
2360 ** Many of these functions are aliased to GLX 1.3 entry points in the
2361 ** GLX_functions table.
2365 GLX_ALIAS(int, glXGetFBConfigAttribSGIX
,
2366 (Display
* dpy
, GLXFBConfigSGIX config
, int attribute
, int *value
),
2367 (dpy
, config
, attribute
, value
), glXGetFBConfigAttrib
)
2369 PUBLIC
GLX_ALIAS(GLXFBConfigSGIX
*, glXChooseFBConfigSGIX
,
2370 (Display
* dpy
, int screen
, int *attrib_list
,
2371 int *nelements
), (dpy
, screen
, attrib_list
, nelements
),
2374 PUBLIC
GLX_ALIAS(XVisualInfo
*, glXGetVisualFromFBConfigSGIX
,
2375 (Display
* dpy
, GLXFBConfigSGIX config
),
2376 (dpy
, config
), glXGetVisualFromFBConfig
)
2379 glXCreateGLXPixmapWithConfigSGIX(Display
* dpy
,
2380 GLXFBConfigSGIX config
,
2383 #ifndef GLX_USE_APPLEGL
2384 xGLXVendorPrivateWithReplyReq
*vpreq
;
2385 xGLXCreateGLXPixmapWithConfigSGIXReq
*req
;
2386 GLXPixmap xid
= None
;
2388 __GLXscreenConfigs
*psc
;
2390 const __GLcontextModes
*const fbconfig
= (__GLcontextModes
*) config
;
2393 if ((dpy
== NULL
) || (config
== NULL
)) {
2396 #ifdef GLX_USE_APPLEGL
2397 if(apple_glx_pixmap_create(dpy
, fbconfig
->screen
, pixmap
, fbconfig
))
2402 psc
= GetGLXScreenConfigs(dpy
, fbconfig
->screen
);
2404 && __glXExtensionBitIsEnabled(psc
, SGIX_fbconfig_bit
)) {
2405 opcode
= __glXSetupForCommand(dpy
);
2410 /* Send the glXCreateGLXPixmapWithConfigSGIX request */
2412 GetReqExtra(GLXVendorPrivateWithReply
,
2413 sz_xGLXCreateGLXPixmapWithConfigSGIXReq
-
2414 sz_xGLXVendorPrivateWithReplyReq
, vpreq
);
2415 req
= (xGLXCreateGLXPixmapWithConfigSGIXReq
*) vpreq
;
2416 req
->reqType
= opcode
;
2417 req
->glxCode
= X_GLXVendorPrivateWithReply
;
2418 req
->vendorCode
= X_GLXvop_CreateGLXPixmapWithConfigSGIX
;
2419 req
->screen
= fbconfig
->screen
;
2420 req
->fbconfig
= fbconfig
->fbconfigID
;
2421 req
->pixmap
= pixmap
;
2422 req
->glxpixmap
= xid
= XAllocID(dpy
);
2432 glXCreateContextWithConfigSGIX(Display
* dpy
,
2433 GLXFBConfigSGIX config
, int renderType
,
2434 GLXContext shareList
, Bool allowDirect
)
2436 GLXContext gc
= NULL
;
2437 const __GLcontextModes
*const fbconfig
= (__GLcontextModes
*) config
;
2438 __GLXscreenConfigs
*psc
;
2441 if ((dpy
== NULL
) || (config
== NULL
)) {
2445 psc
= GetGLXScreenConfigs(dpy
, fbconfig
->screen
);
2447 && __glXExtensionBitIsEnabled(psc
, SGIX_fbconfig_bit
)) {
2448 gc
= CreateContext(dpy
, fbconfig
->fbconfigID
, fbconfig
, shareList
,
2450 X_GLXvop_CreateContextWithConfigSGIX
, renderType
,
2458 PUBLIC GLXFBConfigSGIX
2459 glXGetFBConfigFromVisualSGIX(Display
* dpy
, XVisualInfo
* vis
)
2461 __GLXdisplayPrivate
*priv
;
2462 __GLXscreenConfigs
*psc
= NULL
;
2464 if ((GetGLXPrivScreenConfig(dpy
, vis
->screen
, &priv
, &psc
) != Success
)
2465 && __glXExtensionBitIsEnabled(psc
, SGIX_fbconfig_bit
)
2466 && (psc
->configs
->fbconfigID
!= (int) GLX_DONT_CARE
)) {
2467 return (GLXFBConfigSGIX
) _gl_context_modes_find_visual(psc
->configs
,
2474 #ifndef GLX_USE_APPLEGL
2476 ** GLX_SGIX_swap_group
2479 __glXJoinSwapGroupSGIX(Display
* dpy
, GLXDrawable drawable
,
2489 ** GLX_SGIX_swap_barrier
2492 __glXBindSwapBarrierSGIX(Display
* dpy
, GLXDrawable drawable
, int barrier
)
2500 __glXQueryMaxSwapBarriersSGIX(Display
* dpy
, int screen
, int *max
)
2510 ** GLX_OML_sync_control
2513 __glXGetSyncValuesOML(Display
* dpy
, GLXDrawable drawable
,
2514 int64_t * ust
, int64_t * msc
, int64_t * sbc
)
2516 __GLXdisplayPrivate
* const priv
= __glXInitialize(dpy
);
2518 __GLXDRIdrawable
*pdraw
;
2519 __GLXscreenConfigs
*psc
;
2524 pdraw
= GetGLXDRIDrawable(dpy
, drawable
, &i
);
2525 psc
= &priv
->screenConfigs
[i
];
2527 #if defined(__DRI_SWAP_BUFFER_COUNTER) && defined(__DRI_MEDIA_STREAM_COUNTER)
2528 if (pdraw
&& psc
->sbc
&& psc
->msc
)
2529 return ( (pdraw
&& psc
->sbc
&& psc
->msc
)
2530 && ((*psc
->msc
->getMSC
)(psc
->driScreen
, msc
) == 0)
2531 && ((*psc
->sbc
->getSBC
)(pdraw
->driDrawable
, sbc
) == 0)
2532 && (__glXGetUST(ust
) == 0) );
2534 if (pdraw
&& psc
&& psc
->driScreen
&& psc
->driScreen
->getDrawableMSC
) {
2535 ret
= psc
->driScreen
->getDrawableMSC(psc
, pdraw
, ust
, msc
, sbc
);
2542 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
2544 __driGetMscRateOML(__DRIdrawable
* draw
,
2545 int32_t * numerator
, int32_t * denominator
, void *private)
2548 __GLXscreenConfigs
*psc
;
2549 XF86VidModeModeLine mode_line
;
2552 __GLXDRIdrawable
*glxDraw
= private;
2557 if (XF86VidModeQueryVersion(psc
->dpy
, &i
, &i
) &&
2558 XF86VidModeGetModeLine(psc
->dpy
, psc
->scr
, &dot_clock
, &mode_line
)) {
2559 unsigned n
= dot_clock
* 1000;
2560 unsigned d
= mode_line
.vtotal
* mode_line
.htotal
;
2562 # define V_INTERLACE 0x010
2563 # define V_DBLSCAN 0x020
2565 if (mode_line
.flags
& V_INTERLACE
)
2567 else if (mode_line
.flags
& V_DBLSCAN
)
2570 /* The OML_sync_control spec requires that if the refresh rate is a
2571 * whole number, that the returned numerator be equal to the refresh
2572 * rate and the denominator be 1.
2580 static const unsigned f
[] = { 13, 11, 7, 5, 3, 2, 0 };
2582 /* This is a poor man's way to reduce a fraction. It's far from
2583 * perfect, but it will work well enough for this situation.
2586 for (i
= 0; f
[i
] != 0; i
++) {
2587 while (n
% f
[i
] == 0 && d
% f
[i
] == 0) {
2613 * Determine the refresh rate of the specified drawable and display.
2615 * \param dpy Display whose refresh rate is to be determined.
2616 * \param drawable Drawable whose refresh rate is to be determined.
2617 * \param numerator Numerator of the refresh rate.
2618 * \param demoninator Denominator of the refresh rate.
2619 * \return If the refresh rate for the specified display and drawable could
2620 * be calculated, True is returned. Otherwise False is returned.
2622 * \note This function is implemented entirely client-side. A lot of other
2623 * functionality is required to export GLX_OML_sync_control, so on
2624 * XFree86 this function can be called for direct-rendering contexts
2625 * when GLX_OML_sync_control appears in the client extension string.
2629 __glXGetMscRateOML(Display
* dpy
, GLXDrawable drawable
,
2630 int32_t * numerator
, int32_t * denominator
)
2632 #if defined( GLX_DIRECT_RENDERING ) && defined( XF86VIDMODE )
2633 __GLXDRIdrawable
*draw
= GetGLXDRIDrawable(dpy
, drawable
, NULL
);
2638 return __driGetMscRateOML(draw
->driDrawable
, numerator
, denominator
, draw
);
2650 __glXSwapBuffersMscOML(Display
* dpy
, GLXDrawable drawable
,
2651 int64_t target_msc
, int64_t divisor
, int64_t remainder
)
2653 GLXContext gc
= __glXGetCurrentContext();
2655 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
, &screen
);
2656 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, screen
);
2658 if (!pdraw
|| !gc
) /* no GLX for this */
2661 #ifdef GLX_DIRECT_RENDERING
2662 if (!gc
->driContext
)
2666 /* The OML_sync_control spec says these should "generate a GLX_BAD_VALUE
2667 * error", but it also says "It [glXSwapBuffersMscOML] will return a value
2668 * of -1 if the function failed because of errors detected in the input
2671 if (divisor
< 0 || remainder
< 0 || target_msc
< 0)
2673 if (divisor
> 0 && remainder
>= divisor
)
2676 #ifdef __DRI_SWAP_BUFFER_COUNTER
2677 if (psc
->counters
!= NULL
)
2678 return (*psc
->sbc
->swapBuffersMSC
)(pdraw
->driDrawable
, target_msc
,
2679 divisor
, remainder
);
2682 #ifdef GLX_DIRECT_RENDERING
2683 if (psc
->driScreen
&& psc
->driScreen
->swapBuffers
)
2684 return (*psc
->driScreen
->swapBuffers
)(pdraw
, target_msc
, divisor
,
2693 __glXWaitForMscOML(Display
* dpy
, GLXDrawable drawable
,
2694 int64_t target_msc
, int64_t divisor
,
2695 int64_t remainder
, int64_t * ust
,
2696 int64_t * msc
, int64_t * sbc
)
2699 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
, &screen
);
2700 __GLXscreenConfigs
* const psc
= GetGLXScreenConfigs( dpy
, screen
);
2704 /* The OML_sync_control spec says these should "generate a GLX_BAD_VALUE
2705 * error", but the return type in the spec is Bool.
2707 if (divisor
< 0 || remainder
< 0 || target_msc
< 0)
2709 if (divisor
> 0 && remainder
>= divisor
)
2712 #ifdef __DRI_MEDIA_STREAM_COUNTER
2713 if (pdraw
!= NULL
&& psc
->msc
!= NULL
) {
2714 ret
= (*psc
->msc
->waitForMSC
) (pdraw
->driDrawable
, target_msc
,
2715 divisor
, remainder
, msc
, sbc
);
2717 /* __glXGetUST returns zero on success and non-zero on failure.
2718 * This function returns True on success and False on failure.
2720 return ((ret
== 0) && (__glXGetUST(ust
) == 0));
2723 if (pdraw
&& psc
->driScreen
&& psc
->driScreen
->waitForMSC
) {
2724 ret
= psc
->driScreen
->waitForMSC(pdraw
, target_msc
, divisor
, remainder
,
2734 __glXWaitForSbcOML(Display
* dpy
, GLXDrawable drawable
,
2735 int64_t target_sbc
, int64_t * ust
,
2736 int64_t * msc
, int64_t * sbc
)
2739 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
, &screen
);
2740 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, screen
);
2743 /* The OML_sync_control spec says this should "generate a GLX_BAD_VALUE
2744 * error", but the return type in the spec is Bool.
2748 #ifdef __DRI_SWAP_BUFFER_COUNTER
2749 if (pdraw
!= NULL
&& psc
->sbc
!= NULL
) {
2751 (*psc
->sbc
->waitForSBC
) (pdraw
->driDrawable
, target_sbc
, msc
, sbc
);
2753 /* __glXGetUST returns zero on success and non-zero on failure.
2754 * This function returns True on success and False on failure.
2756 return ((ret
== 0) && (__glXGetUST(ust
) == 0));
2759 if (pdraw
&& psc
->driScreen
&& psc
->driScreen
->waitForSBC
) {
2760 ret
= psc
->driScreen
->waitForSBC(pdraw
, target_sbc
, ust
, msc
, sbc
);
2768 * GLX_MESA_allocate_memory
2773 glXAllocateMemoryMESA(Display
* dpy
, int scrn
,
2774 size_t size
, float readFreq
,
2775 float writeFreq
, float priority
)
2777 #ifdef __DRI_ALLOCATE
2778 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, scrn
);
2780 if (psc
&& psc
->allocate
)
2781 return (*psc
->allocate
->allocateMemory
) (psc
->__driScreen
, size
,
2782 readFreq
, writeFreq
, priority
);
2791 #endif /* __DRI_ALLOCATE */
2798 glXFreeMemoryMESA(Display
* dpy
, int scrn
, void *pointer
)
2800 #ifdef __DRI_ALLOCATE
2801 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, scrn
);
2803 if (psc
&& psc
->allocate
)
2804 (*psc
->allocate
->freeMemory
) (psc
->__driScreen
, pointer
);
2810 #endif /* __DRI_ALLOCATE */
2815 glXGetMemoryOffsetMESA(Display
* dpy
, int scrn
, const void *pointer
)
2817 #ifdef __DRI_ALLOCATE
2818 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, scrn
);
2820 if (psc
&& psc
->allocate
)
2821 return (*psc
->allocate
->memoryOffset
) (psc
->__driScreen
, pointer
);
2827 #endif /* GLX_DIRECT_RENDERING */
2836 * Mesa extension stubs. These will help reduce portability problems.
2841 * Release all buffers associated with the specified GLX drawable.
2844 * This function was intended for stand-alone Mesa. The issue there is that
2845 * the library doesn't get any notification when a window is closed. In
2846 * DRI there is a similar but slightly different issue. When GLX 1.3 is
2847 * supported, there are 3 different functions to destroy a drawable. It
2848 * should be possible to create GLX protocol (or have it determine which
2849 * protocol to use based on the type of the drawable) to have one function
2850 * do the work of 3. For the direct-rendering case, this function could
2851 * just call the driver's \c __DRIdrawableRec::destroyDrawable function.
2852 * This would reduce the frequency with which \c __driGarbageCollectDrawables
2853 * would need to be used. This really should be done as part of the new DRI
2856 * \sa http://oss.sgi.com/projects/ogl-sample/registry/MESA/release_buffers.txt
2857 * __driGarbageCollectDrawables
2858 * glXDestroyGLXPixmap
2859 * glXDestroyPbuffer glXDestroyPixmap glXDestroyWindow
2860 * glXDestroyGLXPbufferSGIX glXDestroyGLXVideoSourceSGIX
2863 __glXReleaseBuffersMESA(Display
* dpy
, GLXDrawable d
)
2872 glXCreateGLXPixmapMESA(Display
* dpy
, XVisualInfo
* visual
,
2873 Pixmap pixmap
, Colormap cmap
)
2886 * GLX_MESA_copy_sub_buffer
2888 #define X_GLXvop_CopySubBufferMESA 5154 /* temporary */
2890 __glXCopySubBufferMESA(Display
* dpy
, GLXDrawable drawable
,
2891 int x
, int y
, int width
, int height
)
2893 xGLXVendorPrivateReq
*req
;
2896 CARD32
*drawable_ptr
;
2897 INT32
*x_ptr
, *y_ptr
, *w_ptr
, *h_ptr
;
2900 #ifdef __DRI_COPY_SUB_BUFFER
2902 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
, &screen
);
2903 if (pdraw
!= NULL
) {
2904 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, screen
);
2905 if (psc
->driScreen
->copySubBuffer
!= NULL
) {
2907 (*psc
->driScreen
->copySubBuffer
) (pdraw
, x
, y
, width
, height
);
2914 opcode
= __glXSetupForCommand(dpy
);
2919 ** The calling thread may or may not have a current context. If it
2920 ** does, send the context tag so the server can do a flush.
2922 gc
= __glXGetCurrentContext();
2923 if ((gc
!= NULL
) && (dpy
== gc
->currentDpy
) &&
2924 ((drawable
== gc
->currentDrawable
) ||
2925 (drawable
== gc
->currentReadable
))) {
2926 tag
= gc
->currentContextTag
;
2933 GetReqExtra(GLXVendorPrivate
, sizeof(CARD32
) + sizeof(INT32
) * 4, req
);
2934 req
->reqType
= opcode
;
2935 req
->glxCode
= X_GLXVendorPrivate
;
2936 req
->vendorCode
= X_GLXvop_CopySubBufferMESA
;
2937 req
->contextTag
= tag
;
2939 drawable_ptr
= (CARD32
*) (req
+ 1);
2940 x_ptr
= (INT32
*) (drawable_ptr
+ 1);
2941 y_ptr
= (INT32
*) (drawable_ptr
+ 2);
2942 w_ptr
= (INT32
*) (drawable_ptr
+ 3);
2943 h_ptr
= (INT32
*) (drawable_ptr
+ 4);
2945 *drawable_ptr
= drawable
;
2957 * GLX_EXT_texture_from_pixmap
2961 __glXBindTexImageEXT(Display
* dpy
,
2962 GLXDrawable drawable
, int buffer
, const int *attrib_list
)
2964 xGLXVendorPrivateReq
*req
;
2965 GLXContext gc
= __glXGetCurrentContext();
2966 CARD32
*drawable_ptr
;
2968 CARD32
*num_attrib_ptr
;
2978 while (attrib_list
[i
* 2] != None
)
2982 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
2983 if (gc
->driContext
) {
2984 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
, NULL
);
2986 if (pdraw
!= NULL
) {
2987 if (pdraw
->psc
->texBuffer
->base
.version
>= 2 &&
2988 pdraw
->psc
->texBuffer
->setTexBuffer2
!= NULL
) {
2989 (*pdraw
->psc
->texBuffer
->setTexBuffer2
) (gc
->__driContext
,
2990 pdraw
->textureTarget
,
2991 pdraw
->textureFormat
,
2992 pdraw
->driDrawable
);
2995 (*pdraw
->psc
->texBuffer
->setTexBuffer
) (gc
->__driContext
,
2996 pdraw
->textureTarget
,
2997 pdraw
->driDrawable
);
3004 opcode
= __glXSetupForCommand(dpy
);
3009 GetReqExtra(GLXVendorPrivate
, 12 + 8 * i
, req
);
3010 req
->reqType
= opcode
;
3011 req
->glxCode
= X_GLXVendorPrivate
;
3012 req
->vendorCode
= X_GLXvop_BindTexImageEXT
;
3013 req
->contextTag
= gc
->currentContextTag
;
3015 drawable_ptr
= (CARD32
*) (req
+ 1);
3016 buffer_ptr
= (INT32
*) (drawable_ptr
+ 1);
3017 num_attrib_ptr
= (CARD32
*) (buffer_ptr
+ 1);
3018 attrib_ptr
= (CARD32
*) (num_attrib_ptr
+ 1);
3020 *drawable_ptr
= drawable
;
3021 *buffer_ptr
= buffer
;
3022 *num_attrib_ptr
= (CARD32
) i
;
3026 while (attrib_list
[i
* 2] != None
) {
3027 *attrib_ptr
++ = (CARD32
) attrib_list
[i
* 2 + 0];
3028 *attrib_ptr
++ = (CARD32
) attrib_list
[i
* 2 + 1];
3038 __glXReleaseTexImageEXT(Display
* dpy
, GLXDrawable drawable
, int buffer
)
3040 xGLXVendorPrivateReq
*req
;
3041 GLXContext gc
= __glXGetCurrentContext();
3042 CARD32
*drawable_ptr
;
3046 if ((gc
== NULL
) || GC_IS_DIRECT(gc
))
3049 opcode
= __glXSetupForCommand(dpy
);
3054 GetReqExtra(GLXVendorPrivate
, sizeof(CARD32
) + sizeof(INT32
), req
);
3055 req
->reqType
= opcode
;
3056 req
->glxCode
= X_GLXVendorPrivate
;
3057 req
->vendorCode
= X_GLXvop_ReleaseTexImageEXT
;
3058 req
->contextTag
= gc
->currentContextTag
;
3060 drawable_ptr
= (CARD32
*) (req
+ 1);
3061 buffer_ptr
= (INT32
*) (drawable_ptr
+ 1);
3063 *drawable_ptr
= drawable
;
3064 *buffer_ptr
= buffer
;
3072 #endif /* GLX_USE_APPLEGL */
3075 * \c strdup is actually not a standard ANSI C or POSIX routine.
3076 * Irix will not define it if ANSI mode is in effect.
3081 __glXstrdup(const char *str
)
3084 copy
= (char *) Xmalloc(strlen(str
) + 1);
3092 ** glXGetProcAddress support
3095 struct name_address_pair
3101 #define GLX_FUNCTION(f) { # f, (GLvoid *) f }
3102 #define GLX_FUNCTION2(n,f) { # n, (GLvoid *) f }
3104 static const struct name_address_pair GLX_functions
[] = {
3105 /*** GLX_VERSION_1_0 ***/
3106 GLX_FUNCTION(glXChooseVisual
),
3107 GLX_FUNCTION(glXCopyContext
),
3108 GLX_FUNCTION(glXCreateContext
),
3109 GLX_FUNCTION(glXCreateGLXPixmap
),
3110 GLX_FUNCTION(glXDestroyContext
),
3111 GLX_FUNCTION(glXDestroyGLXPixmap
),
3112 GLX_FUNCTION(glXGetConfig
),
3113 GLX_FUNCTION(glXGetCurrentContext
),
3114 GLX_FUNCTION(glXGetCurrentDrawable
),
3115 GLX_FUNCTION(glXIsDirect
),
3116 GLX_FUNCTION(glXMakeCurrent
),
3117 GLX_FUNCTION(glXQueryExtension
),
3118 GLX_FUNCTION(glXQueryVersion
),
3119 GLX_FUNCTION(glXSwapBuffers
),
3120 GLX_FUNCTION(glXUseXFont
),
3121 GLX_FUNCTION(glXWaitGL
),
3122 GLX_FUNCTION(glXWaitX
),
3124 /*** GLX_VERSION_1_1 ***/
3125 GLX_FUNCTION(glXGetClientString
),
3126 GLX_FUNCTION(glXQueryExtensionsString
),
3127 GLX_FUNCTION(glXQueryServerString
),
3129 /*** GLX_VERSION_1_2 ***/
3130 GLX_FUNCTION(glXGetCurrentDisplay
),
3132 /*** GLX_VERSION_1_3 ***/
3133 GLX_FUNCTION(glXChooseFBConfig
),
3134 GLX_FUNCTION(glXCreateNewContext
),
3135 GLX_FUNCTION(glXCreatePbuffer
),
3136 GLX_FUNCTION(glXCreatePixmap
),
3137 GLX_FUNCTION(glXCreateWindow
),
3138 GLX_FUNCTION(glXDestroyPbuffer
),
3139 GLX_FUNCTION(glXDestroyPixmap
),
3140 GLX_FUNCTION(glXDestroyWindow
),
3141 GLX_FUNCTION(glXGetCurrentReadDrawable
),
3142 GLX_FUNCTION(glXGetFBConfigAttrib
),
3143 GLX_FUNCTION(glXGetFBConfigs
),
3144 GLX_FUNCTION(glXGetSelectedEvent
),
3145 GLX_FUNCTION(glXGetVisualFromFBConfig
),
3146 GLX_FUNCTION(glXMakeContextCurrent
),
3147 GLX_FUNCTION(glXQueryContext
),
3148 GLX_FUNCTION(glXQueryDrawable
),
3149 GLX_FUNCTION(glXSelectEvent
),
3151 #ifndef GLX_USE_APPLEGL
3152 /*** GLX_SGI_swap_control ***/
3153 GLX_FUNCTION2(glXSwapIntervalSGI
, __glXSwapIntervalSGI
),
3155 /*** GLX_SGI_video_sync ***/
3156 GLX_FUNCTION2(glXGetVideoSyncSGI
, __glXGetVideoSyncSGI
),
3157 GLX_FUNCTION2(glXWaitVideoSyncSGI
, __glXWaitVideoSyncSGI
),
3159 /*** GLX_SGI_make_current_read ***/
3160 GLX_FUNCTION2(glXMakeCurrentReadSGI
, glXMakeContextCurrent
),
3161 GLX_FUNCTION2(glXGetCurrentReadDrawableSGI
, glXGetCurrentReadDrawable
),
3163 /*** GLX_EXT_import_context ***/
3164 GLX_FUNCTION(glXFreeContextEXT
),
3165 GLX_FUNCTION(glXGetContextIDEXT
),
3166 GLX_FUNCTION2(glXGetCurrentDisplayEXT
, glXGetCurrentDisplay
),
3167 GLX_FUNCTION(glXImportContextEXT
),
3168 GLX_FUNCTION2(glXQueryContextInfoEXT
, glXQueryContext
),
3171 /*** GLX_SGIX_fbconfig ***/
3172 GLX_FUNCTION2(glXGetFBConfigAttribSGIX
, glXGetFBConfigAttrib
),
3173 GLX_FUNCTION2(glXChooseFBConfigSGIX
, glXChooseFBConfig
),
3174 GLX_FUNCTION(glXCreateGLXPixmapWithConfigSGIX
),
3175 GLX_FUNCTION(glXCreateContextWithConfigSGIX
),
3176 GLX_FUNCTION2(glXGetVisualFromFBConfigSGIX
, glXGetVisualFromFBConfig
),
3177 GLX_FUNCTION(glXGetFBConfigFromVisualSGIX
),
3179 #ifndef GLX_USE_APPLEGL
3180 /*** GLX_SGIX_pbuffer ***/
3181 GLX_FUNCTION(glXCreateGLXPbufferSGIX
),
3182 GLX_FUNCTION(glXDestroyGLXPbufferSGIX
),
3183 GLX_FUNCTION(glXQueryGLXPbufferSGIX
),
3184 GLX_FUNCTION(glXSelectEventSGIX
),
3185 GLX_FUNCTION(glXGetSelectedEventSGIX
),
3187 /*** GLX_SGIX_swap_group ***/
3188 GLX_FUNCTION2(glXJoinSwapGroupSGIX
, __glXJoinSwapGroupSGIX
),
3190 /*** GLX_SGIX_swap_barrier ***/
3191 GLX_FUNCTION2(glXBindSwapBarrierSGIX
, __glXBindSwapBarrierSGIX
),
3192 GLX_FUNCTION2(glXQueryMaxSwapBarriersSGIX
, __glXQueryMaxSwapBarriersSGIX
),
3194 /*** GLX_MESA_allocate_memory ***/
3195 GLX_FUNCTION(glXAllocateMemoryMESA
),
3196 GLX_FUNCTION(glXFreeMemoryMESA
),
3197 GLX_FUNCTION(glXGetMemoryOffsetMESA
),
3199 /*** GLX_MESA_copy_sub_buffer ***/
3200 GLX_FUNCTION2(glXCopySubBufferMESA
, __glXCopySubBufferMESA
),
3202 /*** GLX_MESA_pixmap_colormap ***/
3203 GLX_FUNCTION(glXCreateGLXPixmapMESA
),
3205 /*** GLX_MESA_release_buffers ***/
3206 GLX_FUNCTION2(glXReleaseBuffersMESA
, __glXReleaseBuffersMESA
),
3208 /*** GLX_MESA_swap_control ***/
3209 GLX_FUNCTION2(glXSwapIntervalMESA
, __glXSwapIntervalMESA
),
3210 GLX_FUNCTION2(glXGetSwapIntervalMESA
, __glXGetSwapIntervalMESA
),
3212 /*** GLX_MESA_swap_frame_usage ***/
3213 GLX_FUNCTION2(glXBeginFrameTrackingMESA
, __glXBeginFrameTrackingMESA
),
3214 GLX_FUNCTION2(glXEndFrameTrackingMESA
, __glXEndFrameTrackingMESA
),
3215 GLX_FUNCTION2(glXGetFrameUsageMESA
, __glXGetFrameUsageMESA
),
3216 GLX_FUNCTION2(glXQueryFrameTrackingMESA
, __glXQueryFrameTrackingMESA
),
3219 /*** GLX_ARB_get_proc_address ***/
3220 GLX_FUNCTION(glXGetProcAddressARB
),
3223 GLX_FUNCTION2(glXGetProcAddress
, glXGetProcAddressARB
),
3225 #ifndef GLX_USE_APPLEGL
3226 /*** GLX_OML_sync_control ***/
3227 GLX_FUNCTION2(glXWaitForSbcOML
, __glXWaitForSbcOML
),
3228 GLX_FUNCTION2(glXWaitForMscOML
, __glXWaitForMscOML
),
3229 GLX_FUNCTION2(glXSwapBuffersMscOML
, __glXSwapBuffersMscOML
),
3230 GLX_FUNCTION2(glXGetMscRateOML
, __glXGetMscRateOML
),
3231 GLX_FUNCTION2(glXGetSyncValuesOML
, __glXGetSyncValuesOML
),
3233 /*** GLX_EXT_texture_from_pixmap ***/
3234 GLX_FUNCTION2(glXBindTexImageEXT
, __glXBindTexImageEXT
),
3235 GLX_FUNCTION2(glXReleaseTexImageEXT
, __glXReleaseTexImageEXT
),
3238 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
3239 /*** DRI configuration ***/
3240 GLX_FUNCTION(glXGetScreenDriver
),
3241 GLX_FUNCTION(glXGetDriverConfig
),
3244 {NULL
, NULL
} /* end of list */
3247 #ifndef GLX_USE_APPLEGL
3248 static const GLvoid
*
3249 get_glx_proc_address(const char *funcName
)
3253 /* try static functions */
3254 for (i
= 0; GLX_functions
[i
].Name
; i
++) {
3255 if (strcmp(GLX_functions
[i
].Name
, funcName
) == 0)
3256 return GLX_functions
[i
].Address
;
3264 * Get the address of a named GL function. This is the pre-GLX 1.4 name for
3265 * \c glXGetProcAddress.
3267 * \param procName Name of a GL or GLX function.
3268 * \returns A pointer to the named function
3270 * \sa glXGetProcAddress
3272 PUBLIC
void (*glXGetProcAddressARB(const GLubyte
* procName
)) (void)
3274 typedef void (*gl_function
) (void);
3278 /* Search the table of GLX and internal functions first. If that
3279 * fails and the supplied name could be a valid core GL name, try
3280 * searching the core GL function table. This check is done to prevent
3281 * DRI based drivers from searching the core GL function table for
3282 * internal API functions.
3284 #ifdef GLX_USE_APPLEGL
3285 f
= (gl_function
) apple_glx_get_proc_address(procName
);
3287 f
= (gl_function
) get_glx_proc_address((const char *) procName
);
3288 if ((f
== NULL
) && (procName
[0] == 'g') && (procName
[1] == 'l')
3289 && (procName
[2] != 'X')) {
3290 f
= (gl_function
) _glapi_get_proc_address((const char *) procName
);
3297 * Get the address of a named GL function. This is the GLX 1.4 name for
3298 * \c glXGetProcAddressARB.
3300 * \param procName Name of a GL or GLX function.
3301 * \returns A pointer to the named function
3303 * \sa glXGetProcAddressARB
3305 PUBLIC
void (*glXGetProcAddress(const GLubyte
* procName
)) (void)
3306 #if defined(__GNUC__) && !defined(GLX_ALIAS_UNSUPPORTED)
3307 __attribute__ ((alias("glXGetProcAddressARB")));
3310 return glXGetProcAddressARB(procName
);
3312 #endif /* __GNUC__ */
3315 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
3317 * Get the unadjusted system time (UST). Currently, the UST is measured in
3318 * microseconds since Epoc. The actual resolution of the UST may vary from
3319 * system to system, and the units may vary from release to release.
3320 * Drivers should not call this function directly. They should instead use
3321 * \c glXGetProcAddress to obtain a pointer to the function.
3323 * \param ust Location to store the 64-bit UST
3324 * \returns Zero on success or a negative errno value on failure.
3326 * \sa glXGetProcAddress, PFNGLXGETUSTPROC
3328 * \since Internal API version 20030317.
3331 __glXGetUST(int64_t * ust
)
3339 if (gettimeofday(&tv
, NULL
) == 0) {
3340 ust
[0] = (tv
.tv_sec
* 1000000) + tv
.tv_usec
;
3347 #endif /* GLX_DIRECT_RENDERING */