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
43 #include <X11/extensions/xf86vmode.h>
45 #define GC_IS_DIRECT(gc) ((gc)->driContext != NULL)
47 #define GC_IS_DIRECT(gc) (0)
51 #include <X11/Xlib-xcb.h>
56 static const char __glXGLXClientVendorName
[] = "Mesa Project and SGI";
57 static const char __glXGLXClientVersion
[] = "1.4";
60 /****************************************************************************/
62 #ifdef GLX_DIRECT_RENDERING
64 static Bool windowExistsFlag
;
66 windowExistsErrorHandler(Display
* dpy
, XErrorEvent
* xerr
)
70 if (xerr
->error_code
== BadWindow
) {
71 windowExistsFlag
= GL_FALSE
;
77 * Find drawables in the local hash that have been destroyed on the
80 * \param dpy Display to destroy drawables for
81 * \param screen Screen number to destroy drawables for
84 GarbageCollectDRIDrawables(Display
* dpy
, __GLXscreenConfigs
* sc
)
87 __GLXDRIdrawable
*pdraw
;
88 XWindowAttributes xwa
;
89 int (*oldXErrorHandler
) (Display
*, XErrorEvent
*);
91 /* Set no-op error handler so Xlib doesn't bail out if the windows
92 * has alreay been destroyed on the server. */
94 oldXErrorHandler
= XSetErrorHandler(windowExistsErrorHandler
);
96 if (__glxHashFirst(sc
->drawHash
, &draw
, (void *) &pdraw
) == 1) {
98 windowExistsFlag
= GL_TRUE
;
99 XGetWindowAttributes(dpy
, draw
, &xwa
); /* dummy request */
100 if (!windowExistsFlag
) {
101 /* Destroy the local drawable data, if the drawable no
102 longer exists in the Xserver */
103 (*pdraw
->destroyDrawable
) (pdraw
);
104 __glxHashDelete(sc
->drawHash
, draw
);
106 } while (__glxHashNext(sc
->drawHash
, &draw
, (void *) &pdraw
) == 1);
109 XSync(dpy
, GL_FALSE
);
110 XSetErrorHandler(oldXErrorHandler
);
113 extern __GLXDRIdrawable
*GetGLXDRIDrawable(Display
* dpy
,
114 GLXDrawable drawable
,
115 int *const scrn_num
);
118 * Get the __DRIdrawable for the drawable associated with a GLXContext
120 * \param dpy The display associated with \c drawable.
121 * \param drawable GLXDrawable whose __DRIdrawable part is to be retrieved.
122 * \param scrn_num If non-NULL, the drawables screen is stored there
123 * \returns A pointer to the context's __DRIdrawable on success, or NULL if
124 * the drawable is not associated with a direct-rendering context.
126 _X_HIDDEN __GLXDRIdrawable
*
127 GetGLXDRIDrawable(Display
* dpy
, GLXDrawable drawable
, int *const scrn_num
)
129 __GLXdisplayPrivate
*priv
= __glXInitialize(dpy
);
130 __GLXDRIdrawable
*pdraw
;
131 const unsigned screen_count
= ScreenCount(dpy
);
133 __GLXscreenConfigs
*psc
;
138 for (i
= 0; i
< screen_count
; i
++) {
139 psc
= &priv
->screenConfigs
[i
];
140 if (psc
->drawHash
== NULL
)
143 if (__glxHashLookup(psc
->drawHash
, drawable
, (void *) &pdraw
) == 0) {
144 if (scrn_num
!= NULL
)
157 * Get the GLX per-screen data structure associated with a GLX context.
159 * \param dpy Display for which the GLX per-screen information is to be
161 * \param scrn Screen on \c dpy for which the GLX per-screen information is
163 * \returns A pointer to the GLX per-screen data if \c dpy and \c scrn
164 * specify a valid GLX screen, or NULL otherwise.
166 * \todo Should this function validate that \c scrn is within the screen
167 * number range for \c dpy?
170 static __GLXscreenConfigs
*
171 GetGLXScreenConfigs(Display
* dpy
, int scrn
)
173 __GLXdisplayPrivate
*const priv
= __glXInitialize(dpy
);
176 && priv
->screenConfigs
!=
177 NULL
) ? &priv
->screenConfigs
[scrn
] : NULL
;
182 GetGLXPrivScreenConfig(Display
* dpy
, int scrn
, __GLXdisplayPrivate
** ppriv
,
183 __GLXscreenConfigs
** ppsc
)
185 /* Initialize the extension, if needed . This has the added value
186 * of initializing/allocating the display private
190 return GLX_NO_EXTENSION
;
193 *ppriv
= __glXInitialize(dpy
);
194 if (*ppriv
== NULL
) {
195 return GLX_NO_EXTENSION
;
198 /* Check screen number to see if its valid */
199 if ((scrn
< 0) || (scrn
>= ScreenCount(dpy
))) {
200 return GLX_BAD_SCREEN
;
203 /* Check to see if the GL is supported on this screen */
204 *ppsc
= &((*ppriv
)->screenConfigs
[scrn
]);
205 if ((*ppsc
)->configs
== NULL
) {
206 /* No support for GL on this screen regardless of visual */
207 return GLX_BAD_VISUAL
;
215 * Determine if a \c GLXFBConfig supplied by the application is valid.
217 * \param dpy Application supplied \c Display pointer.
218 * \param config Application supplied \c GLXFBConfig.
220 * \returns If the \c GLXFBConfig is valid, the a pointer to the matching
221 * \c __GLcontextModes structure is returned. Otherwise, \c NULL
224 static __GLcontextModes
*
225 ValidateGLXFBConfig(Display
* dpy
, GLXFBConfig config
)
227 __GLXdisplayPrivate
*const priv
= __glXInitialize(dpy
);
228 const unsigned num_screens
= ScreenCount(dpy
);
230 const __GLcontextModes
*modes
;
234 for (i
= 0; i
< num_screens
; i
++) {
235 for (modes
= priv
->screenConfigs
[i
].configs
; modes
!= NULL
;
236 modes
= modes
->next
) {
237 if (modes
== (__GLcontextModes
*) config
) {
238 return (__GLcontextModes
*) config
;
249 * \todo It should be possible to move the allocate of \c client_state_private
250 * later in the function for direct-rendering contexts. Direct-rendering
251 * contexts don't need to track client state, so they don't need that memory
254 * \todo Eliminate \c __glXInitVertexArrayState. Replace it with a new
255 * function called \c __glXAllocateClientState that allocates the memory and
256 * does all the initialization (including the pixel pack / unpack).
259 AllocateGLXContext(Display
* dpy
)
264 __GLXattribute
*state
;
269 opcode
= __glXSetupForCommand(dpy
);
274 /* Allocate our context record */
275 gc
= (GLXContext
) Xmalloc(sizeof(struct __GLXcontextRec
));
280 memset(gc
, 0, sizeof(struct __GLXcontextRec
));
282 state
= Xmalloc(sizeof(struct __GLXattributeRec
));
288 gc
->client_state_private
= state
;
289 memset(gc
->client_state_private
, 0, sizeof(struct __GLXattributeRec
));
290 state
->NoDrawArraysProtocol
= (getenv("LIBGL_NO_DRAWARRAYS") != NULL
);
293 ** Create a temporary buffer to hold GLX rendering commands. The size
294 ** of the buffer is selected so that the maximum number of GLX rendering
295 ** commands can fit in a single X packet and still have room in the X
296 ** packet for the GLXRenderReq header.
299 bufSize
= (XMaxRequestSize(dpy
) * 4) - sz_xGLXRenderReq
;
300 gc
->buf
= (GLubyte
*) Xmalloc(bufSize
);
302 Xfree(gc
->client_state_private
);
306 gc
->bufSize
= bufSize
;
308 /* Fill in the new context */
309 gc
->renderMode
= GL_RENDER
;
311 state
->storePack
.alignment
= 4;
312 state
->storeUnpack
.alignment
= 4;
314 gc
->attributes
.stackPointer
= &gc
->attributes
.stack
[0];
317 ** PERFORMANCE NOTE: A mode dependent fill image can speed things up.
318 ** Other code uses the fastImageUnpack bit, but it is never set
321 gc
->fastImageUnpack
= GL_FALSE
;
322 gc
->fillImage
= __glFillImage
;
324 gc
->bufEnd
= gc
->buf
+ bufSize
;
325 gc
->isDirect
= GL_FALSE
;
328 ** Set limit register so that there will be one command per packet
333 gc
->limit
= gc
->buf
+ bufSize
- __GLX_BUFFER_LIMIT_SIZE
;
336 gc
->majorOpcode
= opcode
;
339 ** Constrain the maximum drawing command size allowed to be
340 ** transfered using the X_GLXRender protocol request. First
341 ** constrain by a software limit, then constrain by the protocl
344 if (bufSize
> __GLX_RENDER_CMD_SIZE_LIMIT
) {
345 bufSize
= __GLX_RENDER_CMD_SIZE_LIMIT
;
347 if (bufSize
> __GLX_MAX_RENDER_CMD_SIZE
) {
348 bufSize
= __GLX_MAX_RENDER_CMD_SIZE
;
350 gc
->maxSmallRenderCommandSize
= bufSize
;
356 * Create a new context. Exactly one of \c vis and \c fbconfig should be
359 * \param use_glx_1_3 For FBConfigs, should GLX 1.3 protocol or
360 * SGIX_fbconfig protocol be used?
361 * \param renderType For FBConfigs, what is the rendering type?
365 CreateContext(Display
* dpy
, XVisualInfo
* vis
,
366 const __GLcontextModes
* const fbconfig
,
367 GLXContext shareList
,
369 unsigned code
, int renderType
, int screen
)
372 #ifdef GLX_DIRECT_RENDERING
373 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, screen
);
381 gc
= AllocateGLXContext(dpy
);
385 if ((vis
== NULL
) && (fbconfig
== NULL
))
388 #ifdef GLX_DIRECT_RENDERING
389 if (allowDirect
&& psc
->driScreen
) {
390 gc
->driContext
= psc
->driScreen
->createContext(psc
, fbconfig
, gc
,
391 shareList
, renderType
);
392 if (gc
->driContext
!= NULL
) {
396 gc
->isDirect
= GL_TRUE
;
403 case X_GLXCreateContext
: {
404 xGLXCreateContextReq
*req
;
406 /* Send the glXCreateContext request */
407 GetReq(GLXCreateContext
, req
);
408 req
->reqType
= gc
->majorOpcode
;
409 req
->glxCode
= X_GLXCreateContext
;
410 req
->context
= gc
->xid
= XAllocID(dpy
);
411 req
->visual
= vis
->visualid
;
412 req
->screen
= vis
->screen
;
413 req
->shareList
= shareList
? shareList
->xid
: None
;
414 req
->isDirect
= GC_IS_DIRECT(gc
);
418 case X_GLXCreateNewContext
: {
419 xGLXCreateNewContextReq
*req
;
421 /* Send the glXCreateNewContext request */
422 GetReq(GLXCreateNewContext
, req
);
423 req
->reqType
= gc
->majorOpcode
;
424 req
->glxCode
= X_GLXCreateNewContext
;
425 req
->context
= gc
->xid
= XAllocID(dpy
);
426 req
->fbconfig
= fbconfig
->fbconfigID
;
427 req
->screen
= fbconfig
->screen
;
428 req
->renderType
= renderType
;
429 req
->shareList
= shareList
? shareList
->xid
: None
;
430 req
->isDirect
= GC_IS_DIRECT(gc
);
434 case X_GLXvop_CreateContextWithConfigSGIX
: {
435 xGLXVendorPrivateWithReplyReq
*vpreq
;
436 xGLXCreateContextWithConfigSGIXReq
*req
;
438 /* Send the glXCreateNewContext request */
439 GetReqExtra(GLXVendorPrivateWithReply
,
440 sz_xGLXCreateContextWithConfigSGIXReq
-
441 sz_xGLXVendorPrivateWithReplyReq
, vpreq
);
442 req
= (xGLXCreateContextWithConfigSGIXReq
*) vpreq
;
443 req
->reqType
= gc
->majorOpcode
;
444 req
->glxCode
= X_GLXVendorPrivateWithReply
;
445 req
->vendorCode
= X_GLXvop_CreateContextWithConfigSGIX
;
446 req
->context
= gc
->xid
= XAllocID(dpy
);
447 req
->fbconfig
= fbconfig
->fbconfigID
;
448 req
->screen
= fbconfig
->screen
;
449 req
->renderType
= renderType
;
450 req
->shareList
= shareList
? shareList
->xid
: None
;
451 req
->isDirect
= GC_IS_DIRECT(gc
);
456 /* What to do here? This case is the sign of an internal error. It
457 * should never be reachable.
465 gc
->imported
= GL_FALSE
;
466 gc
->renderType
= renderType
;
472 glXCreateContext(Display
* dpy
, XVisualInfo
* vis
,
473 GLXContext shareList
, Bool allowDirect
)
475 const __GLcontextModes
*mode
= NULL
;
478 #ifdef GLX_DIRECT_RENDERING
479 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, vis
->screen
);
481 mode
= _gl_context_modes_find_visual(psc
->visuals
, vis
->visualid
);
485 error
.errorCode
= BadValue
;
486 error
.resourceID
= vis
->visualid
;
487 error
.sequenceNumber
= dpy
->request
;
488 error
.type
= X_Error
;
489 error
.majorCode
= __glXSetupForCommand(dpy
);
490 error
.minorCode
= X_GLXCreateContext
;
491 _XError(dpy
, &error
);
495 renderType
= mode
->rgbMode
? GLX_RGBA_TYPE
: GLX_COLOR_INDEX_TYPE
;
498 return CreateContext(dpy
, vis
, mode
, shareList
, allowDirect
,
499 X_GLXCreateContext
, renderType
, vis
->screen
);
503 __glXFreeContext(__GLXcontext
* gc
)
506 XFree((char *) gc
->vendor
);
508 XFree((char *) gc
->renderer
);
510 XFree((char *) gc
->version
);
512 XFree((char *) gc
->extensions
);
513 __glFreeAttributeState(gc
);
514 XFree((char *) gc
->buf
);
515 Xfree((char *) gc
->client_state_private
);
521 ** Destroy the named context
524 DestroyContext(Display
* dpy
, GLXContext gc
)
526 xGLXDestroyContextReq
*req
;
531 opcode
= __glXSetupForCommand(dpy
);
532 if (!opcode
|| !gc
) {
538 imported
= gc
->imported
;
541 if (gc
->currentDpy
) {
542 /* This context is bound to some thread. According to the man page,
543 * we should not actually delete the context until it's unbound.
544 * Note that we set gc->xid = None above. In MakeContextCurrent()
545 * we check for that and delete the context there.
551 #ifdef GLX_DIRECT_RENDERING
552 /* Destroy the direct rendering context */
553 if (gc
->driContext
) {
554 (*gc
->driContext
->destroyContext
) (gc
->driContext
, gc
->psc
, dpy
);
555 gc
->driContext
= NULL
;
556 GarbageCollectDRIDrawables(dpy
, gc
->psc
);
560 __glXFreeVertexArrayState(gc
);
562 if (gc
->currentDpy
) {
563 /* Have to free later cuz it's in use now */
567 /* Destroy the handle if not current to anybody */
569 __glXFreeContext(gc
);
574 ** This dpy also created the server side part of the context.
575 ** Send the glXDestroyContext request.
578 GetReq(GLXDestroyContext
, req
);
579 req
->reqType
= opcode
;
580 req
->glxCode
= X_GLXDestroyContext
;
588 glXDestroyContext(Display
* dpy
, GLXContext gc
)
590 DestroyContext(dpy
, gc
);
594 ** Return the major and minor version #s for the GLX extension
597 glXQueryVersion(Display
* dpy
, int *major
, int *minor
)
599 __GLXdisplayPrivate
*priv
;
601 /* Init the extension. This fetches the major and minor version. */
602 priv
= __glXInitialize(dpy
);
607 *major
= priv
->majorVersion
;
609 *minor
= priv
->minorVersion
;
614 ** Query the existance of the GLX extension
617 glXQueryExtension(Display
* dpy
, int *errorBase
, int *eventBase
)
619 int major_op
, erb
, evb
;
622 rv
= XQueryExtension(dpy
, GLX_EXTENSION_NAME
, &major_op
, &evb
, &erb
);
633 ** Put a barrier in the token stream that forces the GL to finish its
634 ** work before X can proceed.
640 GLXContext gc
= __glXGetCurrentContext();
641 Display
*dpy
= gc
->currentDpy
;
646 /* Flush any pending commands out */
647 __glXFlushRenderBuffer(gc
, gc
->pc
);
649 #ifdef GLX_DIRECT_RENDERING
650 if (gc
->driContext
) {
652 __GLXDRIdrawable
*pdraw
=
653 GetGLXDRIDrawable(dpy
, gc
->currentDrawable
, &screen
);
656 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, screen
);
658 if (psc
->driScreen
->waitGL
!= NULL
)
659 (*psc
->driScreen
->waitGL
) (pdraw
);
665 /* Send the glXWaitGL request */
667 GetReq(GLXWaitGL
, req
);
668 req
->reqType
= gc
->majorOpcode
;
669 req
->glxCode
= X_GLXWaitGL
;
670 req
->contextTag
= gc
->currentContextTag
;
676 ** Put a barrier in the token stream that forces X to finish its
677 ** work before GL can proceed.
683 GLXContext gc
= __glXGetCurrentContext();
684 Display
*dpy
= gc
->currentDpy
;
689 /* Flush any pending commands out */
690 __glXFlushRenderBuffer(gc
, gc
->pc
);
692 #ifdef GLX_DIRECT_RENDERING
693 if (gc
->driContext
) {
695 __GLXDRIdrawable
*pdraw
=
696 GetGLXDRIDrawable(dpy
, gc
->currentDrawable
, &screen
);
699 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, screen
);
700 if (psc
->driScreen
->waitX
!= NULL
)
701 (*psc
->driScreen
->waitX
) (pdraw
);
710 ** Send the glXWaitX request.
713 GetReq(GLXWaitX
, req
);
714 req
->reqType
= gc
->majorOpcode
;
715 req
->glxCode
= X_GLXWaitX
;
716 req
->contextTag
= gc
->currentContextTag
;
722 glXUseXFont(Font font
, int first
, int count
, int listBase
)
724 xGLXUseXFontReq
*req
;
725 GLXContext gc
= __glXGetCurrentContext();
726 Display
*dpy
= gc
->currentDpy
;
731 /* Flush any pending commands out */
732 (void) __glXFlushRenderBuffer(gc
, gc
->pc
);
734 #ifdef GLX_DIRECT_RENDERING
735 if (gc
->driContext
) {
736 DRI_glXUseXFont(font
, first
, count
, listBase
);
741 /* Send the glXUseFont request */
743 GetReq(GLXUseXFont
, req
);
744 req
->reqType
= gc
->majorOpcode
;
745 req
->glxCode
= X_GLXUseXFont
;
746 req
->contextTag
= gc
->currentContextTag
;
750 req
->listBase
= listBase
;
755 /************************************************************************/
758 ** Copy the source context to the destination context using the
762 glXCopyContext(Display
* dpy
, GLXContext source
,
763 GLXContext dest
, unsigned long mask
)
765 xGLXCopyContextReq
*req
;
766 GLXContext gc
= __glXGetCurrentContext();
770 opcode
= __glXSetupForCommand(dpy
);
775 #ifdef GLX_DIRECT_RENDERING
776 if (gc
->driContext
) {
777 /* NOT_DONE: This does not work yet */
782 ** If the source is the current context, send its tag so that the context
783 ** can be flushed before the copy.
785 if (source
== gc
&& dpy
== gc
->currentDpy
) {
786 tag
= gc
->currentContextTag
;
792 /* Send the glXCopyContext request */
794 GetReq(GLXCopyContext
, req
);
795 req
->reqType
= opcode
;
796 req
->glxCode
= X_GLXCopyContext
;
797 req
->source
= source
? source
->xid
: None
;
798 req
->dest
= dest
? dest
->xid
: None
;
800 req
->contextTag
= tag
;
807 * Determine if a context uses direct rendering.
809 * \param dpy Display where the context was created.
810 * \param contextID ID of the context to be tested.
812 * \returns \c GL_TRUE if the context is direct rendering or not.
815 __glXIsDirect(Display
* dpy
, GLXContextID contextID
)
817 #if !defined(USE_XCB)
818 xGLXIsDirectReq
*req
;
819 xGLXIsDirectReply reply
;
823 opcode
= __glXSetupForCommand(dpy
);
829 xcb_connection_t
*c
= XGetXCBConnection(dpy
);
830 xcb_glx_is_direct_reply_t
*reply
= xcb_glx_is_direct_reply(c
,
835 const Bool is_direct
= reply
->is_direct
? True
: False
;
840 /* Send the glXIsDirect request */
842 GetReq(GLXIsDirect
, req
);
843 req
->reqType
= opcode
;
844 req
->glxCode
= X_GLXIsDirect
;
845 req
->context
= contextID
;
846 _XReply(dpy
, (xReply
*) & reply
, 0, False
);
850 return reply
.isDirect
;
856 * Shouldn't this function \b always return \c GL_FALSE when
857 * \c GLX_DIRECT_RENDERING is not defined? Do we really need to bother with
858 * the GLX protocol here at all?
861 glXIsDirect(Display
* dpy
, GLXContext gc
)
866 else if (GC_IS_DIRECT(gc
)) {
869 return __glXIsDirect(dpy
, gc
->xid
);
873 glXCreateGLXPixmap(Display
* dpy
, XVisualInfo
* vis
, Pixmap pixmap
)
875 xGLXCreateGLXPixmapReq
*req
;
879 opcode
= __glXSetupForCommand(dpy
);
884 /* Send the glXCreateGLXPixmap request */
886 GetReq(GLXCreateGLXPixmap
, req
);
887 req
->reqType
= opcode
;
888 req
->glxCode
= X_GLXCreateGLXPixmap
;
889 req
->screen
= vis
->screen
;
890 req
->visual
= vis
->visualid
;
891 req
->pixmap
= pixmap
;
892 req
->glxpixmap
= xid
= XAllocID(dpy
);
896 #ifdef GLX_DIRECT_RENDERING
898 /* FIXME: Maybe delay __DRIdrawable creation until the drawable
899 * is actually bound to a context... */
901 __GLXdisplayPrivate
*const priv
= __glXInitialize(dpy
);
902 __GLXDRIdrawable
*pdraw
;
903 __GLXscreenConfigs
*psc
;
904 __GLcontextModes
*modes
;
906 psc
= &priv
->screenConfigs
[vis
->screen
];
907 if (psc
->driScreen
== NULL
)
909 modes
= _gl_context_modes_find_visual(psc
->visuals
, vis
->visualid
);
910 pdraw
= psc
->driScreen
->createDrawable(psc
, pixmap
, req
->glxpixmap
, modes
);
912 fprintf(stderr
, "failed to create pixmap\n");
916 if (__glxHashInsert(psc
->drawHash
, req
->glxpixmap
, pdraw
)) {
917 (*pdraw
->destroyDrawable
) (pdraw
);
918 return None
; /* FIXME: Check what we're supposed to do here... */
927 ** Destroy the named pixmap
930 glXDestroyGLXPixmap(Display
* dpy
, GLXPixmap glxpixmap
)
932 xGLXDestroyGLXPixmapReq
*req
;
935 opcode
= __glXSetupForCommand(dpy
);
940 /* Send the glXDestroyGLXPixmap request */
942 GetReq(GLXDestroyGLXPixmap
, req
);
943 req
->reqType
= opcode
;
944 req
->glxCode
= X_GLXDestroyGLXPixmap
;
945 req
->glxpixmap
= glxpixmap
;
949 #ifdef GLX_DIRECT_RENDERING
952 __GLXdisplayPrivate
*const priv
= __glXInitialize(dpy
);
953 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, glxpixmap
, &screen
);
954 __GLXscreenConfigs
*psc
= &priv
->screenConfigs
[screen
];
957 (*pdraw
->destroyDrawable
) (pdraw
);
958 __glxHashDelete(psc
->drawHash
, glxpixmap
);
965 glXSwapBuffers(Display
* dpy
, GLXDrawable drawable
)
973 xGLXSwapBuffersReq
*req
;
976 #ifdef GLX_DIRECT_RENDERING
977 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
, NULL
);
981 (*pdraw
->psc
->driScreen
->swapBuffers
)(pdraw
, 0, 0, 0);
986 opcode
= __glXSetupForCommand(dpy
);
992 ** The calling thread may or may not have a current context. If it
993 ** does, send the context tag so the server can do a flush.
995 gc
= __glXGetCurrentContext();
996 if ((gc
!= NULL
) && (dpy
== gc
->currentDpy
) &&
997 ((drawable
== gc
->currentDrawable
)
998 || (drawable
== gc
->currentReadable
))) {
999 tag
= gc
->currentContextTag
;
1006 c
= XGetXCBConnection(dpy
);
1007 xcb_glx_swap_buffers(c
, tag
, drawable
);
1010 /* Send the glXSwapBuffers request */
1012 GetReq(GLXSwapBuffers
, req
);
1013 req
->reqType
= opcode
;
1014 req
->glxCode
= X_GLXSwapBuffers
;
1015 req
->drawable
= drawable
;
1016 req
->contextTag
= tag
;
1020 #endif /* USE_XCB */
1025 ** Return configuration information for the given display, screen and
1026 ** visual combination.
1029 glXGetConfig(Display
* dpy
, XVisualInfo
* vis
, int attribute
,
1032 __GLXdisplayPrivate
*priv
;
1033 __GLXscreenConfigs
*psc
;
1034 __GLcontextModes
*modes
;
1037 status
= GetGLXPrivScreenConfig(dpy
, vis
->screen
, &priv
, &psc
);
1038 if (status
== Success
) {
1039 modes
= _gl_context_modes_find_visual(psc
->visuals
, vis
->visualid
);
1041 /* Lookup attribute after first finding a match on the visual */
1042 if (modes
!= NULL
) {
1043 return _gl_get_context_mode_data(modes
, attribute
, value_return
);
1046 status
= GLX_BAD_VISUAL
;
1050 ** If we can't find the config for this visual, this visual is not
1051 ** supported by the OpenGL implementation on the server.
1053 if ((status
== GLX_BAD_VISUAL
) && (attribute
== GLX_USE_GL
)) {
1054 *value_return
= GL_FALSE
;
1061 /************************************************************************/
1064 init_fbconfig_for_chooser(__GLcontextModes
* config
,
1065 GLboolean fbconfig_style_tags
)
1067 memset(config
, 0, sizeof(__GLcontextModes
));
1068 config
->visualID
= (XID
) GLX_DONT_CARE
;
1069 config
->visualType
= GLX_DONT_CARE
;
1071 /* glXChooseFBConfig specifies different defaults for these two than
1074 if (fbconfig_style_tags
) {
1075 config
->rgbMode
= GL_TRUE
;
1076 config
->doubleBufferMode
= GLX_DONT_CARE
;
1079 config
->visualRating
= GLX_DONT_CARE
;
1080 config
->transparentPixel
= GLX_NONE
;
1081 config
->transparentRed
= GLX_DONT_CARE
;
1082 config
->transparentGreen
= GLX_DONT_CARE
;
1083 config
->transparentBlue
= GLX_DONT_CARE
;
1084 config
->transparentAlpha
= GLX_DONT_CARE
;
1085 config
->transparentIndex
= GLX_DONT_CARE
;
1087 config
->drawableType
= GLX_WINDOW_BIT
;
1088 config
->renderType
=
1089 (config
->rgbMode
) ? GLX_RGBA_BIT
: GLX_COLOR_INDEX_BIT
;
1090 config
->xRenderable
= GLX_DONT_CARE
;
1091 config
->fbconfigID
= (GLXFBConfigID
) (GLX_DONT_CARE
);
1093 config
->swapMethod
= GLX_DONT_CARE
;
1096 #define MATCH_DONT_CARE( param ) \
1098 if ( ((int) a-> param != (int) GLX_DONT_CARE) \
1099 && (a-> param != b-> param) ) { \
1104 #define MATCH_MINIMUM( param ) \
1106 if ( ((int) a-> param != (int) GLX_DONT_CARE) \
1107 && (a-> param > b-> param) ) { \
1112 #define MATCH_EXACT( param ) \
1114 if ( a-> param != b-> param) { \
1120 * Determine if two GLXFBConfigs are compatible.
1122 * \param a Application specified config to test.
1123 * \param b Server specified config to test against \c a.
1126 fbconfigs_compatible(const __GLcontextModes
* const a
,
1127 const __GLcontextModes
* const b
)
1129 MATCH_DONT_CARE(doubleBufferMode
);
1130 MATCH_DONT_CARE(visualType
);
1131 MATCH_DONT_CARE(visualRating
);
1132 MATCH_DONT_CARE(xRenderable
);
1133 MATCH_DONT_CARE(fbconfigID
);
1134 MATCH_DONT_CARE(swapMethod
);
1136 MATCH_MINIMUM(rgbBits
);
1137 MATCH_MINIMUM(numAuxBuffers
);
1138 MATCH_MINIMUM(redBits
);
1139 MATCH_MINIMUM(greenBits
);
1140 MATCH_MINIMUM(blueBits
);
1141 MATCH_MINIMUM(alphaBits
);
1142 MATCH_MINIMUM(depthBits
);
1143 MATCH_MINIMUM(stencilBits
);
1144 MATCH_MINIMUM(accumRedBits
);
1145 MATCH_MINIMUM(accumGreenBits
);
1146 MATCH_MINIMUM(accumBlueBits
);
1147 MATCH_MINIMUM(accumAlphaBits
);
1148 MATCH_MINIMUM(sampleBuffers
);
1149 MATCH_MINIMUM(maxPbufferWidth
);
1150 MATCH_MINIMUM(maxPbufferHeight
);
1151 MATCH_MINIMUM(maxPbufferPixels
);
1152 MATCH_MINIMUM(samples
);
1154 MATCH_DONT_CARE(stereoMode
);
1157 if (((a
->drawableType
& b
->drawableType
) == 0)
1158 || ((a
->renderType
& b
->renderType
) == 0)) {
1163 /* There is a bug in a few of the XFree86 DDX drivers. They contain
1164 * visuals with a "transparent type" of 0 when they really mean GLX_NONE.
1165 * Technically speaking, it is a bug in the DDX driver, but there is
1166 * enough of an installed base to work around the problem here. In any
1167 * case, 0 is not a valid value of the transparent type, so we'll treat 0
1168 * from the app as GLX_DONT_CARE. We'll consider GLX_NONE from the app and
1169 * 0 from the server to be a match to maintain backward compatibility with
1170 * the (broken) drivers.
1173 if (a
->transparentPixel
!= (int) GLX_DONT_CARE
&& a
->transparentPixel
!= 0) {
1174 if (a
->transparentPixel
== GLX_NONE
) {
1175 if (b
->transparentPixel
!= GLX_NONE
&& b
->transparentPixel
!= 0)
1179 MATCH_EXACT(transparentPixel
);
1182 switch (a
->transparentPixel
) {
1183 case GLX_TRANSPARENT_RGB
:
1184 MATCH_DONT_CARE(transparentRed
);
1185 MATCH_DONT_CARE(transparentGreen
);
1186 MATCH_DONT_CARE(transparentBlue
);
1187 MATCH_DONT_CARE(transparentAlpha
);
1190 case GLX_TRANSPARENT_INDEX
:
1191 MATCH_DONT_CARE(transparentIndex
);
1203 /* There's some trickly language in the GLX spec about how this is supposed
1204 * to work. Basically, if a given component size is either not specified
1205 * or the requested size is zero, it is supposed to act like PERFER_SMALLER.
1206 * Well, that's really hard to do with the code as-is. This behavior is
1207 * closer to correct, but still not technically right.
1209 #define PREFER_LARGER_OR_ZERO(comp) \
1211 if ( ((*a)-> comp) != ((*b)-> comp) ) { \
1212 if ( ((*a)-> comp) == 0 ) { \
1215 else if ( ((*b)-> comp) == 0 ) { \
1219 return ((*b)-> comp) - ((*a)-> comp) ; \
1224 #define PREFER_LARGER(comp) \
1226 if ( ((*a)-> comp) != ((*b)-> comp) ) { \
1227 return ((*b)-> comp) - ((*a)-> comp) ; \
1231 #define PREFER_SMALLER(comp) \
1233 if ( ((*a)-> comp) != ((*b)-> comp) ) { \
1234 return ((*a)-> comp) - ((*b)-> comp) ; \
1239 * Compare two GLXFBConfigs. This function is intended to be used as the
1240 * compare function passed in to qsort.
1242 * \returns If \c a is a "better" config, according to the specification of
1243 * SGIX_fbconfig, a number less than zero is returned. If \c b is
1244 * better, then a number greater than zero is return. If both are
1245 * equal, zero is returned.
1246 * \sa qsort, glXChooseVisual, glXChooseFBConfig, glXChooseFBConfigSGIX
1249 fbconfig_compare(const __GLcontextModes
* const *const a
,
1250 const __GLcontextModes
* const *const b
)
1252 /* The order of these comparisons must NOT change. It is defined by
1253 * the GLX 1.3 spec and ARB_multisample.
1256 PREFER_SMALLER(visualSelectGroup
);
1258 /* The sort order for the visualRating is GLX_NONE, GLX_SLOW, and
1259 * GLX_NON_CONFORMANT_CONFIG. It just so happens that this is the
1260 * numerical sort order of the enums (0x8000, 0x8001, and 0x800D).
1262 PREFER_SMALLER(visualRating
);
1264 /* This isn't quite right. It is supposed to compare the sum of the
1265 * components the user specifically set minimums for.
1267 PREFER_LARGER_OR_ZERO(redBits
);
1268 PREFER_LARGER_OR_ZERO(greenBits
);
1269 PREFER_LARGER_OR_ZERO(blueBits
);
1270 PREFER_LARGER_OR_ZERO(alphaBits
);
1272 PREFER_SMALLER(rgbBits
);
1274 if (((*a
)->doubleBufferMode
!= (*b
)->doubleBufferMode
)) {
1275 /* Prefer single-buffer.
1277 return (!(*a
)->doubleBufferMode
) ? -1 : 1;
1280 PREFER_SMALLER(numAuxBuffers
);
1282 PREFER_LARGER_OR_ZERO(depthBits
);
1283 PREFER_SMALLER(stencilBits
);
1285 /* This isn't quite right. It is supposed to compare the sum of the
1286 * components the user specifically set minimums for.
1288 PREFER_LARGER_OR_ZERO(accumRedBits
);
1289 PREFER_LARGER_OR_ZERO(accumGreenBits
);
1290 PREFER_LARGER_OR_ZERO(accumBlueBits
);
1291 PREFER_LARGER_OR_ZERO(accumAlphaBits
);
1293 PREFER_SMALLER(visualType
);
1295 /* None of the multisample specs say where this comparison should happen,
1296 * so I put it near the end.
1298 PREFER_SMALLER(sampleBuffers
);
1299 PREFER_SMALLER(samples
);
1301 /* None of the pbuffer or fbconfig specs say that this comparison needs
1302 * to happen at all, but it seems like it should.
1304 PREFER_LARGER(maxPbufferWidth
);
1305 PREFER_LARGER(maxPbufferHeight
);
1306 PREFER_LARGER(maxPbufferPixels
);
1313 * Selects and sorts a subset of the supplied configs based on the attributes.
1314 * This function forms to basis of \c glXChooseVisual, \c glXChooseFBConfig,
1315 * and \c glXChooseFBConfigSGIX.
1317 * \param configs Array of pointers to possible configs. The elements of
1318 * this array that do not meet the criteria will be set to
1319 * NULL. The remaining elements will be sorted according to
1320 * the various visual / FBConfig selection rules.
1321 * \param num_configs Number of elements in the \c configs array.
1322 * \param attribList Attributes used select from \c configs. This array is
1323 * terminated by a \c None tag. The array can either take
1324 * the form expected by \c glXChooseVisual (where boolean
1325 * tags do not have a value) or by \c glXChooseFBConfig
1326 * (where every tag has a value).
1327 * \param fbconfig_style_tags Selects whether \c attribList is in
1328 * \c glXChooseVisual style or
1329 * \c glXChooseFBConfig style.
1330 * \returns The number of valid elements left in \c configs.
1332 * \sa glXChooseVisual, glXChooseFBConfig, glXChooseFBConfigSGIX
1335 choose_visual(__GLcontextModes
** configs
, int num_configs
,
1336 const int *attribList
, GLboolean fbconfig_style_tags
)
1338 __GLcontextModes test_config
;
1342 /* This is a fairly direct implementation of the selection method
1343 * described by GLX_SGIX_fbconfig. Start by culling out all the
1344 * configs that are not compatible with the selected parameter
1348 init_fbconfig_for_chooser(&test_config
, fbconfig_style_tags
);
1349 __glXInitializeVisualConfigFromTags(&test_config
, 512,
1350 (const INT32
*) attribList
,
1351 GL_TRUE
, fbconfig_style_tags
);
1354 for (i
= 0; i
< num_configs
; i
++) {
1355 if (fbconfigs_compatible(&test_config
, configs
[i
])) {
1356 configs
[base
] = configs
[i
];
1365 if (base
< num_configs
) {
1366 (void) memset(&configs
[base
], 0, sizeof(void *) * (num_configs
- base
));
1369 /* After the incompatible configs are removed, the resulting
1370 * list is sorted according to the rules set out in the various
1374 qsort(configs
, base
, sizeof(__GLcontextModes
*),
1375 (int (*)(const void *, const void *)) fbconfig_compare
);
1383 ** Return the visual that best matches the template. Return None if no
1384 ** visual matches the template.
1386 PUBLIC XVisualInfo
*
1387 glXChooseVisual(Display
* dpy
, int screen
, int *attribList
)
1389 XVisualInfo
*visualList
= NULL
;
1390 __GLXdisplayPrivate
*priv
;
1391 __GLXscreenConfigs
*psc
;
1392 __GLcontextModes test_config
;
1393 __GLcontextModes
*modes
;
1394 const __GLcontextModes
*best_config
= NULL
;
1397 ** Get a list of all visuals, return if list is empty
1399 if (GetGLXPrivScreenConfig(dpy
, screen
, &priv
, &psc
) != Success
) {
1405 ** Build a template from the defaults and the attribute list
1406 ** Free visual list and return if an unexpected token is encountered
1408 init_fbconfig_for_chooser(&test_config
, GL_FALSE
);
1409 __glXInitializeVisualConfigFromTags(&test_config
, 512,
1410 (const INT32
*) attribList
,
1414 ** Eliminate visuals that don't meet minimum requirements
1415 ** Compute a score for those that do
1416 ** Remember which visual, if any, got the highest score
1417 ** If no visual is acceptable, return None
1418 ** Otherwise, create an XVisualInfo list with just the selected X visual
1421 for (modes
= psc
->visuals
; modes
!= NULL
; modes
= modes
->next
) {
1422 if (fbconfigs_compatible(&test_config
, modes
)
1423 && ((best_config
== NULL
)
1426 ((const __GLcontextModes
* const *const) &modes
,
1427 &best_config
) < 0))) {
1428 XVisualInfo visualTemplate
;
1429 XVisualInfo
*newList
;
1432 visualTemplate
.screen
= screen
;
1433 visualTemplate
.visualid
= modes
->visualID
;
1434 newList
= XGetVisualInfo(dpy
, VisualScreenMask
| VisualIDMask
,
1435 &visualTemplate
, &i
);
1439 visualList
= newList
;
1440 best_config
= modes
;
1450 glXQueryExtensionsString(Display
* dpy
, int screen
)
1452 __GLXscreenConfigs
*psc
;
1453 __GLXdisplayPrivate
*priv
;
1455 if (GetGLXPrivScreenConfig(dpy
, screen
, &priv
, &psc
) != Success
) {
1459 if (!psc
->effectiveGLXexts
) {
1460 if (!psc
->serverGLXexts
) {
1461 psc
->serverGLXexts
=
1462 __glXQueryServerString(dpy
, priv
->majorOpcode
, screen
,
1466 __glXCalculateUsableExtensions(psc
,
1467 #ifdef GLX_DIRECT_RENDERING
1468 (psc
->driScreen
!= NULL
),
1472 priv
->minorVersion
);
1475 return psc
->effectiveGLXexts
;
1479 glXGetClientString(Display
* dpy
, int name
)
1485 return (__glXGLXClientVendorName
);
1487 return (__glXGLXClientVersion
);
1488 case GLX_EXTENSIONS
:
1489 return (__glXGetClientExtensions());
1496 glXQueryServerString(Display
* dpy
, int screen
, int name
)
1498 __GLXscreenConfigs
*psc
;
1499 __GLXdisplayPrivate
*priv
;
1503 if (GetGLXPrivScreenConfig(dpy
, screen
, &priv
, &psc
) != Success
) {
1509 str
= &priv
->serverGLXvendor
;
1512 str
= &priv
->serverGLXversion
;
1514 case GLX_EXTENSIONS
:
1515 str
= &psc
->serverGLXexts
;
1522 *str
= __glXQueryServerString(dpy
, priv
->majorOpcode
, screen
, name
);
1529 __glXClientInfo(Display
* dpy
, int opcode
)
1531 char *ext_str
= __glXGetClientGLExtensionString();
1532 int size
= strlen(ext_str
) + 1;
1535 xcb_connection_t
*c
= XGetXCBConnection(dpy
);
1536 xcb_glx_client_info(c
,
1537 GLX_MAJOR_VERSION
, GLX_MINOR_VERSION
, size
, ext_str
);
1539 xGLXClientInfoReq
*req
;
1541 /* Send the glXClientInfo request */
1543 GetReq(GLXClientInfo
, req
);
1544 req
->reqType
= opcode
;
1545 req
->glxCode
= X_GLXClientInfo
;
1546 req
->major
= GLX_MAJOR_VERSION
;
1547 req
->minor
= GLX_MINOR_VERSION
;
1549 req
->length
+= (size
+ 3) >> 2;
1550 req
->numbytes
= size
;
1551 Data(dpy
, ext_str
, size
);
1555 #endif /* USE_XCB */
1562 ** EXT_import_context
1566 glXGetCurrentDisplay(void)
1568 GLXContext gc
= __glXGetCurrentContext();
1571 return gc
->currentDpy
;
1575 GLX_ALIAS(Display
*, glXGetCurrentDisplayEXT
, (void), (),
1576 glXGetCurrentDisplay
)
1579 * Used internally by libGL to send \c xGLXQueryContextinfoExtReq requests
1582 * \param dpy Display where \c ctx was created.
1583 * \param ctx Context to query.
1584 * \returns \c Success on success. \c GLX_BAD_CONTEXT if \c ctx is invalid,
1585 * or zero if the request failed due to internal problems (i.e.,
1586 * unable to allocate temporary memory, etc.)
1589 * This function dynamically determines whether to use the EXT_import_context
1590 * version of the protocol or the GLX 1.3 version of the protocol.
1592 static int __glXQueryContextInfo(Display
* dpy
, GLXContext ctx
)
1594 __GLXdisplayPrivate
*priv
= __glXInitialize(dpy
);
1595 xGLXQueryContextReply reply
;
1601 return GLX_BAD_CONTEXT
;
1603 opcode
= __glXSetupForCommand(dpy
);
1608 /* Send the glXQueryContextInfoEXT request */
1611 if ((priv
->majorVersion
> 1) || (priv
->minorVersion
>= 3)) {
1612 xGLXQueryContextReq
*req
;
1614 GetReq(GLXQueryContext
, req
);
1616 req
->reqType
= opcode
;
1617 req
->glxCode
= X_GLXQueryContext
;
1618 req
->context
= (unsigned int) (ctx
->xid
);
1621 xGLXVendorPrivateReq
*vpreq
;
1622 xGLXQueryContextInfoEXTReq
*req
;
1624 GetReqExtra(GLXVendorPrivate
,
1625 sz_xGLXQueryContextInfoEXTReq
- sz_xGLXVendorPrivateReq
,
1627 req
= (xGLXQueryContextInfoEXTReq
*) vpreq
;
1628 req
->reqType
= opcode
;
1629 req
->glxCode
= X_GLXVendorPrivateWithReply
;
1630 req
->vendorCode
= X_GLXvop_QueryContextInfoEXT
;
1631 req
->context
= (unsigned int) (ctx
->xid
);
1634 _XReply(dpy
, (xReply
*) & reply
, 0, False
);
1636 numValues
= reply
.n
;
1639 else if (numValues
> __GLX_MAX_CONTEXT_PROPS
)
1642 int *propList
, *pProp
;
1645 nPropListBytes
= numValues
<< 3;
1646 propList
= (int *) Xmalloc(nPropListBytes
);
1647 if (NULL
== propList
) {
1653 _XRead(dpy
, (char *) propList
, nPropListBytes
);
1655 for (i
= 0; i
< numValues
; i
++) {
1657 case GLX_SHARE_CONTEXT_EXT
:
1658 ctx
->share_xid
= *pProp
++;
1660 case GLX_VISUAL_ID_EXT
:
1662 _gl_context_modes_find_visual(ctx
->psc
->visuals
, *pProp
++);
1665 ctx
->screen
= *pProp
++;
1667 case GLX_FBCONFIG_ID
:
1669 _gl_context_modes_find_fbconfig(ctx
->psc
->configs
,
1672 case GLX_RENDER_TYPE
:
1673 ctx
->renderType
= *pProp
++;
1680 Xfree((char *) propList
);
1690 glXQueryContext(Display
* dpy
, GLXContext ctx
, int attribute
, int *value
)
1694 /* get the information from the server if we don't have it already */
1695 #ifdef GLX_DIRECT_RENDERING
1696 if (!ctx
->driContext
&& (ctx
->mode
== NULL
)) {
1698 if (ctx
->mode
== NULL
) {
1700 retVal
= __glXQueryContextInfo(dpy
, ctx
);
1701 if (Success
!= retVal
)
1704 switch (attribute
) {
1705 case GLX_SHARE_CONTEXT_EXT
:
1706 *value
= (int) (ctx
->share_xid
);
1708 case GLX_VISUAL_ID_EXT
:
1709 *value
= ctx
->mode
? ctx
->mode
->visualID
: None
;
1712 *value
= (int) (ctx
->screen
);
1714 case GLX_FBCONFIG_ID
:
1715 *value
= ctx
->mode
? ctx
->mode
->fbconfigID
: None
;
1717 case GLX_RENDER_TYPE
:
1718 *value
= (int) (ctx
->renderType
);
1721 return GLX_BAD_ATTRIBUTE
;
1727 GLX_ALIAS(int, glXQueryContextInfoEXT
,
1728 (Display
* dpy
, GLXContext ctx
, int attribute
, int *value
),
1729 (dpy
, ctx
, attribute
, value
), glXQueryContext
)
1731 PUBLIC GLXContextID
glXGetContextIDEXT(const GLXContext ctx
)
1737 glXImportContextEXT(Display
* dpy
, GLXContextID contextID
)
1741 if (contextID
== None
) {
1744 if (__glXIsDirect(dpy
, contextID
)) {
1748 ctx
= AllocateGLXContext(dpy
);
1750 ctx
->xid
= contextID
;
1751 ctx
->imported
= GL_TRUE
;
1753 if (Success
!= __glXQueryContextInfo(dpy
, ctx
)) {
1754 __glXFreeContext(ctx
);
1762 glXFreeContextEXT(Display
* dpy
, GLXContext ctx
)
1764 DestroyContext(dpy
, ctx
);
1770 * GLX 1.3 functions - these are just stubs for now!
1773 PUBLIC GLXFBConfig
*
1774 glXChooseFBConfig(Display
* dpy
, int screen
,
1775 const int *attribList
, int *nitems
)
1777 __GLcontextModes
**config_list
;
1781 config_list
= (__GLcontextModes
**)
1782 glXGetFBConfigs(dpy
, screen
, &list_size
);
1784 if ((config_list
!= NULL
) && (list_size
> 0) && (attribList
!= NULL
)) {
1785 list_size
= choose_visual(config_list
, list_size
, attribList
, GL_TRUE
);
1786 if (list_size
== 0) {
1792 *nitems
= list_size
;
1793 return (GLXFBConfig
*) config_list
;
1798 glXCreateNewContext(Display
* dpy
, GLXFBConfig config
,
1799 int renderType
, GLXContext shareList
, Bool allowDirect
)
1801 const __GLcontextModes
*const fbconfig
=
1802 (const __GLcontextModes
*const) config
;
1804 return CreateContext(dpy
, NULL
, fbconfig
, shareList
,
1805 allowDirect
, X_GLXCreateNewContext
, renderType
,
1811 glXGetCurrentReadDrawable(void)
1813 GLXContext gc
= __glXGetCurrentContext();
1814 return gc
->currentReadable
;
1818 PUBLIC GLXFBConfig
*
1819 glXGetFBConfigs(Display
* dpy
, int screen
, int *nelements
)
1821 __GLXdisplayPrivate
*priv
= __glXInitialize(dpy
);
1822 __GLcontextModes
**config
= NULL
;
1826 if (priv
&& (priv
->screenConfigs
!= NULL
)
1827 && (screen
>= 0) && (screen
<= ScreenCount(dpy
))
1828 && (priv
->screenConfigs
[screen
].configs
!= NULL
)
1829 && (priv
->screenConfigs
[screen
].configs
->fbconfigID
1830 != (int) GLX_DONT_CARE
)) {
1831 unsigned num_configs
= 0;
1832 __GLcontextModes
*modes
;
1835 for (modes
= priv
->screenConfigs
[screen
].configs
; modes
!= NULL
;
1836 modes
= modes
->next
) {
1837 if (modes
->fbconfigID
!= (int) GLX_DONT_CARE
) {
1842 config
= (__GLcontextModes
**) Xmalloc(sizeof(__GLcontextModes
*)
1844 if (config
!= NULL
) {
1845 *nelements
= num_configs
;
1847 for (modes
= priv
->screenConfigs
[screen
].configs
; modes
!= NULL
;
1848 modes
= modes
->next
) {
1849 if (modes
->fbconfigID
!= (int) GLX_DONT_CARE
) {
1856 return (GLXFBConfig
*) config
;
1861 glXGetFBConfigAttrib(Display
* dpy
, GLXFBConfig config
,
1862 int attribute
, int *value
)
1864 __GLcontextModes
*const modes
= ValidateGLXFBConfig(dpy
, config
);
1866 return (modes
!= NULL
)
1867 ? _gl_get_context_mode_data(modes
, attribute
, value
)
1872 PUBLIC XVisualInfo
*
1873 glXGetVisualFromFBConfig(Display
* dpy
, GLXFBConfig config
)
1875 XVisualInfo visualTemplate
;
1876 __GLcontextModes
*fbconfig
= (__GLcontextModes
*) config
;
1880 ** Get a list of all visuals, return if list is empty
1882 visualTemplate
.visualid
= fbconfig
->visualID
;
1883 return XGetVisualInfo(dpy
, VisualIDMask
, &visualTemplate
, &count
);
1888 ** GLX_SGI_swap_control
1891 __glXSwapIntervalSGI(int interval
)
1893 xGLXVendorPrivateReq
*req
;
1894 GLXContext gc
= __glXGetCurrentContext();
1895 __GLXscreenConfigs
*psc
;
1897 CARD32
*interval_ptr
;
1901 return GLX_BAD_CONTEXT
;
1904 if (interval
<= 0) {
1905 return GLX_BAD_VALUE
;
1908 #ifdef __DRI_SWAP_CONTROL
1909 if (gc
->driContext
) {
1910 __GLXscreenConfigs
* const psc
= GetGLXScreenConfigs( gc
->currentDpy
,
1912 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(gc
->currentDpy
,
1913 gc
->currentDrawable
,
1915 if (psc
->swapControl
!= NULL
&& pdraw
!= NULL
) {
1916 psc
->swapControl
->setSwapInterval(pdraw
->driDrawable
, interval
);
1919 else if (pdraw
== NULL
) {
1920 return GLX_BAD_CONTEXT
;
1924 psc
= GetGLXScreenConfigs( gc
->currentDpy
, gc
->screen
);
1926 if (gc
->driContext
&& psc
->driScreen
&& psc
->driScreen
->setSwapInterval
) {
1927 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(gc
->currentDpy
,
1928 gc
->currentDrawable
,
1930 psc
->driScreen
->setSwapInterval(pdraw
, interval
);
1934 dpy
= gc
->currentDpy
;
1935 opcode
= __glXSetupForCommand(dpy
);
1940 /* Send the glXSwapIntervalSGI request */
1942 GetReqExtra(GLXVendorPrivate
, sizeof(CARD32
), req
);
1943 req
->reqType
= opcode
;
1944 req
->glxCode
= X_GLXVendorPrivate
;
1945 req
->vendorCode
= X_GLXvop_SwapIntervalSGI
;
1946 req
->contextTag
= gc
->currentContextTag
;
1948 interval_ptr
= (CARD32
*) (req
+ 1);
1949 *interval_ptr
= interval
;
1960 ** GLX_MESA_swap_control
1963 __glXSwapIntervalMESA(unsigned int interval
)
1965 GLXContext gc
= __glXGetCurrentContext();
1967 #ifdef __DRI_SWAP_CONTROL
1968 if (gc
!= NULL
&& gc
->driContext
) {
1969 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(gc
->currentDpy
,
1972 if ((psc
!= NULL
) && (psc
->driScreen
!= NULL
)) {
1973 __GLXDRIdrawable
*pdraw
=
1974 GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
, NULL
);
1975 if (psc
->swapControl
!= NULL
&& pdraw
!= NULL
) {
1976 psc
->swapControl
->setSwapInterval(pdraw
->driDrawable
, interval
);
1983 if (gc
!= NULL
&& gc
->driContext
) {
1984 __GLXscreenConfigs
*psc
;
1986 psc
= GetGLXScreenConfigs( gc
->currentDpy
, gc
->screen
);
1987 if (psc
->driScreen
&& psc
->driScreen
->setSwapInterval
) {
1988 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(gc
->currentDpy
,
1989 gc
->currentDrawable
, NULL
);
1990 psc
->driScreen
->setSwapInterval(pdraw
, interval
);
1995 return GLX_BAD_CONTEXT
;
2000 __glXGetSwapIntervalMESA(void)
2002 #ifdef __DRI_SWAP_CONTROL
2003 GLXContext gc
= __glXGetCurrentContext();
2005 if (gc
!= NULL
&& gc
->driContext
) {
2006 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(gc
->currentDpy
,
2009 if ((psc
!= NULL
) && (psc
->driScreen
!= NULL
)) {
2010 __GLXDRIdrawable
*pdraw
=
2011 GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
, NULL
);
2012 if (psc
->swapControl
!= NULL
&& pdraw
!= NULL
) {
2013 return psc
->swapControl
->getSwapInterval(pdraw
->driDrawable
);
2018 if (gc
!= NULL
&& gc
->driContext
) {
2019 __GLXscreenConfigs
*psc
;
2021 psc
= GetGLXScreenConfigs( gc
->currentDpy
, gc
->screen
);
2022 if (psc
->driScreen
&& psc
->driScreen
->getSwapInterval
) {
2023 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(gc
->currentDpy
,
2024 gc
->currentDrawable
, NULL
);
2025 return psc
->driScreen
->getSwapInterval(pdraw
);
2034 ** GLX_MESA_swap_frame_usage
2038 __glXBeginFrameTrackingMESA(Display
* dpy
, GLXDrawable drawable
)
2040 int status
= GLX_BAD_CONTEXT
;
2041 #ifdef __DRI_FRAME_TRACKING
2043 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
, &screen
);
2044 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, screen
);
2046 if (pdraw
!= NULL
&& psc
->frameTracking
!= NULL
)
2047 status
= psc
->frameTracking
->frameTracking(pdraw
->driDrawable
, GL_TRUE
);
2057 __glXEndFrameTrackingMESA(Display
* dpy
, GLXDrawable drawable
)
2059 int status
= GLX_BAD_CONTEXT
;
2060 #ifdef __DRI_FRAME_TRACKING
2062 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
, &screen
);
2063 __GLXscreenConfigs
*psc
= GetGLXScreenConfigs(dpy
, screen
);
2065 if (pdraw
!= NULL
&& psc
->frameTracking
!= NULL
)
2066 status
= psc
->frameTracking
->frameTracking(pdraw
->driDrawable
,
2077 __glXGetFrameUsageMESA(Display
* dpy
, GLXDrawable drawable
, GLfloat
* usage
)
2079 int status
= GLX_BAD_CONTEXT
;
2080 #ifdef __DRI_FRAME_TRACKING
2082 __GLXDRIdrawable
*const pdraw
= GetGLXDRIDrawable(dpy
, drawable
, &screen
);
2083 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, screen
);
2085 if (pdraw
!= NULL
&& psc
->frameTracking
!= NULL
) {
2086 int64_t sbc
, missedFrames
;
2087 float lastMissedUsage
;
2089 status
= psc
->frameTracking
->queryFrameTracking(pdraw
->driDrawable
,
2105 __glXQueryFrameTrackingMESA(Display
* dpy
, GLXDrawable drawable
,
2106 int64_t * sbc
, int64_t * missedFrames
,
2107 GLfloat
* lastMissedUsage
)
2109 int status
= GLX_BAD_CONTEXT
;
2110 #ifdef __DRI_FRAME_TRACKING
2112 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
, &screen
);
2113 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, screen
);
2115 if (pdraw
!= NULL
&& psc
->frameTracking
!= NULL
) {
2118 status
= psc
->frameTracking
->queryFrameTracking(pdraw
->driDrawable
,
2127 (void) missedFrames
;
2128 (void) lastMissedUsage
;
2135 ** GLX_SGI_video_sync
2138 __glXGetVideoSyncSGI(unsigned int *count
)
2140 int64_t ust
, msc
, sbc
;
2142 GLXContext gc
= __glXGetCurrentContext();
2143 __GLXscreenConfigs
*psc
;
2144 __GLXDRIdrawable
*pdraw
;
2146 if (!gc
|| !gc
->driContext
)
2147 return GLX_BAD_CONTEXT
;
2149 psc
= GetGLXScreenConfigs(gc
->currentDpy
, gc
->screen
);
2150 pdraw
= GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
, NULL
);
2152 /* FIXME: Looking at the GLX_SGI_video_sync spec in the extension registry,
2153 * FIXME: there should be a GLX encoding for this call. I can find no
2154 * FIXME: documentation for the GLX encoding.
2156 #ifdef __DRI_MEDIA_STREAM_COUNTER
2157 if ( psc
->msc
&& psc
->driScreen
) {
2158 ret
= (*psc
->msc
->getDrawableMSC
)(psc
->__driScreen
,
2159 pdraw
->driDrawable
, &msc
);
2160 *count
= (unsigned) msc
;
2162 return (ret
== 0) ? 0 : GLX_BAD_CONTEXT
;
2165 if (psc
->driScreen
&& psc
->driScreen
->getDrawableMSC
) {
2166 ret
= psc
->driScreen
->getDrawableMSC(psc
, pdraw
, &ust
, &msc
, &sbc
);
2167 *count
= (unsigned) msc
;
2168 return (ret
== True
) ? 0 : GLX_BAD_CONTEXT
;
2171 return GLX_BAD_CONTEXT
;
2175 __glXWaitVideoSyncSGI(int divisor
, int remainder
, unsigned int *count
)
2177 GLXContext gc
= __glXGetCurrentContext();
2178 __GLXscreenConfigs
*psc
;
2179 __GLXDRIdrawable
*pdraw
;
2180 int64_t ust
, msc
, sbc
;
2183 if (divisor
<= 0 || remainder
< 0)
2184 return GLX_BAD_VALUE
;
2186 if (!gc
|| !gc
->driContext
)
2187 return GLX_BAD_CONTEXT
;
2189 psc
= GetGLXScreenConfigs( gc
->currentDpy
, gc
->screen
);
2190 pdraw
= GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
, NULL
);
2192 #ifdef __DRI_MEDIA_STREAM_COUNTER
2193 if (psc
->msc
!= NULL
&& psc
->driScreen
) {
2194 ret
= (*psc
->msc
->waitForMSC
)(pdraw
->driDrawable
, 0,
2195 divisor
, remainder
, &msc
, &sbc
);
2196 *count
= (unsigned) msc
;
2197 return (ret
== 0) ? 0 : GLX_BAD_CONTEXT
;
2200 if (psc
->driScreen
&& psc
->driScreen
->waitForMSC
) {
2201 ret
= psc
->driScreen
->waitForMSC(pdraw
, 0, divisor
, remainder
, &ust
, &msc
,
2203 *count
= (unsigned) msc
;
2204 return (ret
== True
) ? 0 : GLX_BAD_CONTEXT
;
2207 return GLX_BAD_CONTEXT
;
2212 ** GLX_SGIX_fbconfig
2213 ** Many of these functions are aliased to GLX 1.3 entry points in the
2214 ** GLX_functions table.
2218 GLX_ALIAS(int, glXGetFBConfigAttribSGIX
,
2219 (Display
* dpy
, GLXFBConfigSGIX config
, int attribute
, int *value
),
2220 (dpy
, config
, attribute
, value
), glXGetFBConfigAttrib
)
2222 PUBLIC
GLX_ALIAS(GLXFBConfigSGIX
*, glXChooseFBConfigSGIX
,
2223 (Display
* dpy
, int screen
, int *attrib_list
,
2224 int *nelements
), (dpy
, screen
, attrib_list
, nelements
),
2227 PUBLIC
GLX_ALIAS(XVisualInfo
*, glXGetVisualFromFBConfigSGIX
,
2228 (Display
* dpy
, GLXFBConfigSGIX config
),
2229 (dpy
, config
), glXGetVisualFromFBConfig
)
2232 glXCreateGLXPixmapWithConfigSGIX(Display
* dpy
,
2233 GLXFBConfigSGIX config
,
2236 xGLXVendorPrivateWithReplyReq
*vpreq
;
2237 xGLXCreateGLXPixmapWithConfigSGIXReq
*req
;
2238 GLXPixmap xid
= None
;
2240 const __GLcontextModes
*const fbconfig
= (__GLcontextModes
*) config
;
2241 __GLXscreenConfigs
*psc
;
2244 if ((dpy
== NULL
) || (config
== NULL
)) {
2248 psc
= GetGLXScreenConfigs(dpy
, fbconfig
->screen
);
2250 && __glXExtensionBitIsEnabled(psc
, SGIX_fbconfig_bit
)) {
2251 opcode
= __glXSetupForCommand(dpy
);
2256 /* Send the glXCreateGLXPixmapWithConfigSGIX request */
2258 GetReqExtra(GLXVendorPrivateWithReply
,
2259 sz_xGLXCreateGLXPixmapWithConfigSGIXReq
-
2260 sz_xGLXVendorPrivateWithReplyReq
, vpreq
);
2261 req
= (xGLXCreateGLXPixmapWithConfigSGIXReq
*) vpreq
;
2262 req
->reqType
= opcode
;
2263 req
->glxCode
= X_GLXVendorPrivateWithReply
;
2264 req
->vendorCode
= X_GLXvop_CreateGLXPixmapWithConfigSGIX
;
2265 req
->screen
= fbconfig
->screen
;
2266 req
->fbconfig
= fbconfig
->fbconfigID
;
2267 req
->pixmap
= pixmap
;
2268 req
->glxpixmap
= xid
= XAllocID(dpy
);
2277 glXCreateContextWithConfigSGIX(Display
* dpy
,
2278 GLXFBConfigSGIX config
, int renderType
,
2279 GLXContext shareList
, Bool allowDirect
)
2281 GLXContext gc
= NULL
;
2282 const __GLcontextModes
*const fbconfig
= (__GLcontextModes
*) config
;
2283 __GLXscreenConfigs
*psc
;
2286 if ((dpy
== NULL
) || (config
== NULL
)) {
2290 psc
= GetGLXScreenConfigs(dpy
, fbconfig
->screen
);
2292 && __glXExtensionBitIsEnabled(psc
, SGIX_fbconfig_bit
)) {
2293 gc
= CreateContext(dpy
, NULL
, (__GLcontextModes
*) config
, shareList
,
2295 X_GLXvop_CreateContextWithConfigSGIX
, renderType
,
2303 PUBLIC GLXFBConfigSGIX
2304 glXGetFBConfigFromVisualSGIX(Display
* dpy
, XVisualInfo
* vis
)
2306 __GLXdisplayPrivate
*priv
;
2307 __GLXscreenConfigs
*psc
= NULL
;
2309 if ((GetGLXPrivScreenConfig(dpy
, vis
->screen
, &priv
, &psc
) != Success
)
2310 && __glXExtensionBitIsEnabled(psc
, SGIX_fbconfig_bit
)
2311 && (psc
->configs
->fbconfigID
!= (int) GLX_DONT_CARE
)) {
2312 return (GLXFBConfigSGIX
) _gl_context_modes_find_visual(psc
->configs
,
2321 ** GLX_SGIX_swap_group
2324 __glXJoinSwapGroupSGIX(Display
* dpy
, GLXDrawable drawable
,
2334 ** GLX_SGIX_swap_barrier
2337 __glXBindSwapBarrierSGIX(Display
* dpy
, GLXDrawable drawable
, int barrier
)
2345 __glXQueryMaxSwapBarriersSGIX(Display
* dpy
, int screen
, int *max
)
2355 ** GLX_OML_sync_control
2358 __glXGetSyncValuesOML(Display
* dpy
, GLXDrawable drawable
,
2359 int64_t * ust
, int64_t * msc
, int64_t * sbc
)
2361 __GLXdisplayPrivate
* const priv
= __glXInitialize(dpy
);
2363 __GLXDRIdrawable
*pdraw
;
2364 __GLXscreenConfigs
*psc
;
2369 pdraw
= GetGLXDRIDrawable(dpy
, drawable
, &i
);
2370 psc
= &priv
->screenConfigs
[i
];
2372 #if defined(__DRI_SWAP_BUFFER_COUNTER) && defined(__DRI_MEDIA_STREAM_COUNTER)
2373 if (pdraw
&& psc
->sbc
&& psc
->sbc
)
2374 return ( (pdraw
&& psc
->sbc
&& psc
->msc
)
2375 && ((*psc
->msc
->getMSC
)(psc
->driScreen
, msc
) == 0)
2376 && ((*psc
->sbc
->getSBC
)(pdraw
->driDrawable
, sbc
) == 0)
2377 && (__glXGetUST(ust
) == 0) );
2379 if (pdraw
&& psc
&& psc
->driScreen
&& psc
->driScreen
->getDrawableMSC
) {
2380 ret
= psc
->driScreen
->getDrawableMSC(psc
, pdraw
, ust
, msc
, sbc
);
2387 #ifdef GLX_DIRECT_RENDERING
2389 __driGetMscRateOML(__DRIdrawable
* draw
,
2390 int32_t * numerator
, int32_t * denominator
, void *private)
2393 __GLXscreenConfigs
*psc
;
2394 XF86VidModeModeLine mode_line
;
2397 __GLXDRIdrawable
*glxDraw
= private;
2402 if (XF86VidModeQueryVersion(psc
->dpy
, &i
, &i
) &&
2403 XF86VidModeGetModeLine(psc
->dpy
, psc
->scr
, &dot_clock
, &mode_line
)) {
2404 unsigned n
= dot_clock
* 1000;
2405 unsigned d
= mode_line
.vtotal
* mode_line
.htotal
;
2407 # define V_INTERLACE 0x010
2408 # define V_DBLSCAN 0x020
2410 if (mode_line
.flags
& V_INTERLACE
)
2412 else if (mode_line
.flags
& V_DBLSCAN
)
2415 /* The OML_sync_control spec requires that if the refresh rate is a
2416 * whole number, that the returned numerator be equal to the refresh
2417 * rate and the denominator be 1.
2425 static const unsigned f
[] = { 13, 11, 7, 5, 3, 2, 0 };
2427 /* This is a poor man's way to reduce a fraction. It's far from
2428 * perfect, but it will work well enough for this situation.
2431 for (i
= 0; f
[i
] != 0; i
++) {
2432 while (n
% f
[i
] == 0 && d
% f
[i
] == 0) {
2458 * Determine the refresh rate of the specified drawable and display.
2460 * \param dpy Display whose refresh rate is to be determined.
2461 * \param drawable Drawable whose refresh rate is to be determined.
2462 * \param numerator Numerator of the refresh rate.
2463 * \param demoninator Denominator of the refresh rate.
2464 * \return If the refresh rate for the specified display and drawable could
2465 * be calculated, True is returned. Otherwise False is returned.
2467 * \note This function is implemented entirely client-side. A lot of other
2468 * functionality is required to export GLX_OML_sync_control, so on
2469 * XFree86 this function can be called for direct-rendering contexts
2470 * when GLX_OML_sync_control appears in the client extension string.
2474 __glXGetMscRateOML(Display
* dpy
, GLXDrawable drawable
,
2475 int32_t * numerator
, int32_t * denominator
)
2477 #if defined( GLX_DIRECT_RENDERING ) && defined( XF86VIDMODE )
2478 __GLXDRIdrawable
*draw
= GetGLXDRIDrawable(dpy
, drawable
, NULL
);
2483 return __driGetMscRateOML(draw
->driDrawable
, numerator
, denominator
, draw
);
2495 __glXSwapBuffersMscOML(Display
* dpy
, GLXDrawable drawable
,
2496 int64_t target_msc
, int64_t divisor
, int64_t remainder
)
2498 GLXContext gc
= __glXGetCurrentContext();
2500 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
, &screen
);
2501 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, screen
);
2503 if (!pdraw
|| !gc
->driContext
) /* no GLX for this */
2506 /* The OML_sync_control spec says these should "generate a GLX_BAD_VALUE
2507 * error", but it also says "It [glXSwapBuffersMscOML] will return a value
2508 * of -1 if the function failed because of errors detected in the input
2511 if (divisor
< 0 || remainder
< 0 || target_msc
< 0)
2513 if (divisor
> 0 && remainder
>= divisor
)
2516 #ifdef __DRI_SWAP_BUFFER_COUNTER
2517 if (psc
->counters
!= NULL
)
2518 return (*psc
->sbc
->swapBuffersMSC
)(pdraw
->driDrawable
, target_msc
,
2519 divisor
, remainder
);
2522 #ifdef GLX_DIRECT_RENDERING
2523 if (psc
->driScreen
&& psc
->driScreen
->swapBuffers
)
2524 return (*psc
->driScreen
->swapBuffers
)(pdraw
, target_msc
, divisor
,
2533 __glXWaitForMscOML(Display
* dpy
, GLXDrawable drawable
,
2534 int64_t target_msc
, int64_t divisor
,
2535 int64_t remainder
, int64_t * ust
,
2536 int64_t * msc
, int64_t * sbc
)
2539 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
, &screen
);
2540 __GLXscreenConfigs
* const psc
= GetGLXScreenConfigs( dpy
, screen
);
2543 fprintf(stderr
, "waitmsc: %lld, %lld, %lld\n", target_msc
, divisor
,
2546 /* The OML_sync_control spec says these should "generate a GLX_BAD_VALUE
2547 * error", but the return type in the spec is Bool.
2549 if (divisor
< 0 || remainder
< 0 || target_msc
< 0)
2551 if (divisor
> 0 && remainder
>= divisor
)
2554 #ifdef __DRI_MEDIA_STREAM_COUNTER
2555 if (pdraw
!= NULL
&& psc
->msc
!= NULL
) {
2556 fprintf(stderr
, "dri1 msc\n");
2557 ret
= (*psc
->msc
->waitForMSC
) (pdraw
->driDrawable
, target_msc
,
2558 divisor
, remainder
, msc
, sbc
);
2560 /* __glXGetUST returns zero on success and non-zero on failure.
2561 * This function returns True on success and False on failure.
2563 return ((ret
== 0) && (__glXGetUST(ust
) == 0));
2566 if (pdraw
&& psc
->driScreen
&& psc
->driScreen
->waitForMSC
) {
2567 ret
= psc
->driScreen
->waitForMSC(pdraw
, target_msc
, divisor
, remainder
,
2572 fprintf(stderr
, "no drawable??\n");
2578 __glXWaitForSbcOML(Display
* dpy
, GLXDrawable drawable
,
2579 int64_t target_sbc
, int64_t * ust
,
2580 int64_t * msc
, int64_t * sbc
)
2583 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
, &screen
);
2584 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, screen
);
2587 /* The OML_sync_control spec says this should "generate a GLX_BAD_VALUE
2588 * error", but the return type in the spec is Bool.
2592 #ifdef __DRI_SWAP_BUFFER_COUNTER
2593 if (pdraw
!= NULL
&& psc
->sbc
!= NULL
) {
2595 (*psc
->sbc
->waitForSBC
) (pdraw
->driDrawable
, target_sbc
, msc
, sbc
);
2597 /* __glXGetUST returns zero on success and non-zero on failure.
2598 * This function returns True on success and False on failure.
2600 return ((ret
== 0) && (__glXGetUST(ust
) == 0));
2603 if (pdraw
&& psc
->driScreen
&& psc
->driScreen
->waitForMSC
) {
2604 ret
= psc
->driScreen
->waitForSBC(pdraw
, target_sbc
, ust
, msc
, sbc
);
2612 * GLX_MESA_allocate_memory
2617 glXAllocateMemoryMESA(Display
* dpy
, int scrn
,
2618 size_t size
, float readFreq
,
2619 float writeFreq
, float priority
)
2621 #ifdef __DRI_ALLOCATE
2622 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, scrn
);
2624 if (psc
&& psc
->allocate
)
2625 return (*psc
->allocate
->allocateMemory
) (psc
->__driScreen
, size
,
2626 readFreq
, writeFreq
, priority
);
2635 #endif /* __DRI_ALLOCATE */
2642 glXFreeMemoryMESA(Display
* dpy
, int scrn
, void *pointer
)
2644 #ifdef __DRI_ALLOCATE
2645 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, scrn
);
2647 if (psc
&& psc
->allocate
)
2648 (*psc
->allocate
->freeMemory
) (psc
->__driScreen
, pointer
);
2654 #endif /* __DRI_ALLOCATE */
2659 glXGetMemoryOffsetMESA(Display
* dpy
, int scrn
, const void *pointer
)
2661 #ifdef __DRI_ALLOCATE
2662 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, scrn
);
2664 if (psc
&& psc
->allocate
)
2665 return (*psc
->allocate
->memoryOffset
) (psc
->__driScreen
, pointer
);
2671 #endif /* GLX_DIRECT_RENDERING */
2680 * Mesa extension stubs. These will help reduce portability problems.
2685 * Release all buffers associated with the specified GLX drawable.
2688 * This function was intended for stand-alone Mesa. The issue there is that
2689 * the library doesn't get any notification when a window is closed. In
2690 * DRI there is a similar but slightly different issue. When GLX 1.3 is
2691 * supported, there are 3 different functions to destroy a drawable. It
2692 * should be possible to create GLX protocol (or have it determine which
2693 * protocol to use based on the type of the drawable) to have one function
2694 * do the work of 3. For the direct-rendering case, this function could
2695 * just call the driver's \c __DRIdrawableRec::destroyDrawable function.
2696 * This would reduce the frequency with which \c __driGarbageCollectDrawables
2697 * would need to be used. This really should be done as part of the new DRI
2700 * \sa http://oss.sgi.com/projects/ogl-sample/registry/MESA/release_buffers.txt
2701 * __driGarbageCollectDrawables
2702 * glXDestroyGLXPixmap
2703 * glXDestroyPbuffer glXDestroyPixmap glXDestroyWindow
2704 * glXDestroyGLXPbufferSGIX glXDestroyGLXVideoSourceSGIX
2707 __glXReleaseBuffersMESA(Display
* dpy
, GLXDrawable d
)
2716 glXCreateGLXPixmapMESA(Display
* dpy
, XVisualInfo
* visual
,
2717 Pixmap pixmap
, Colormap cmap
)
2730 * GLX_MESA_copy_sub_buffer
2732 #define X_GLXvop_CopySubBufferMESA 5154 /* temporary */
2734 __glXCopySubBufferMESA(Display
* dpy
, GLXDrawable drawable
,
2735 int x
, int y
, int width
, int height
)
2737 xGLXVendorPrivateReq
*req
;
2740 CARD32
*drawable_ptr
;
2741 INT32
*x_ptr
, *y_ptr
, *w_ptr
, *h_ptr
;
2744 #ifdef __DRI_COPY_SUB_BUFFER
2746 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
, &screen
);
2747 if (pdraw
!= NULL
) {
2748 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, screen
);
2749 if (psc
->driScreen
->copySubBuffer
!= NULL
) {
2751 (*psc
->driScreen
->copySubBuffer
) (pdraw
, x
, y
, width
, height
);
2758 opcode
= __glXSetupForCommand(dpy
);
2763 ** The calling thread may or may not have a current context. If it
2764 ** does, send the context tag so the server can do a flush.
2766 gc
= __glXGetCurrentContext();
2767 if ((gc
!= NULL
) && (dpy
== gc
->currentDpy
) &&
2768 ((drawable
== gc
->currentDrawable
) ||
2769 (drawable
== gc
->currentReadable
))) {
2770 tag
= gc
->currentContextTag
;
2777 GetReqExtra(GLXVendorPrivate
, sizeof(CARD32
) + sizeof(INT32
) * 4, req
);
2778 req
->reqType
= opcode
;
2779 req
->glxCode
= X_GLXVendorPrivate
;
2780 req
->vendorCode
= X_GLXvop_CopySubBufferMESA
;
2781 req
->contextTag
= tag
;
2783 drawable_ptr
= (CARD32
*) (req
+ 1);
2784 x_ptr
= (INT32
*) (drawable_ptr
+ 1);
2785 y_ptr
= (INT32
*) (drawable_ptr
+ 2);
2786 w_ptr
= (INT32
*) (drawable_ptr
+ 3);
2787 h_ptr
= (INT32
*) (drawable_ptr
+ 4);
2789 *drawable_ptr
= drawable
;
2801 * GLX_EXT_texture_from_pixmap
2805 __glXBindTexImageEXT(Display
* dpy
,
2806 GLXDrawable drawable
, int buffer
, const int *attrib_list
)
2808 xGLXVendorPrivateReq
*req
;
2809 GLXContext gc
= __glXGetCurrentContext();
2810 CARD32
*drawable_ptr
;
2812 CARD32
*num_attrib_ptr
;
2822 while (attrib_list
[i
* 2] != None
)
2826 #ifdef GLX_DIRECT_RENDERING
2827 if (gc
->driContext
) {
2828 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
, NULL
);
2830 if (pdraw
!= NULL
) {
2831 if (pdraw
->psc
->texBuffer
->base
.version
>= 2 &&
2832 pdraw
->psc
->texBuffer
->setTexBuffer2
!= NULL
) {
2833 (*pdraw
->psc
->texBuffer
->setTexBuffer2
) (gc
->__driContext
,
2834 pdraw
->textureTarget
,
2835 pdraw
->textureFormat
,
2836 pdraw
->driDrawable
);
2839 (*pdraw
->psc
->texBuffer
->setTexBuffer
) (gc
->__driContext
,
2840 pdraw
->textureTarget
,
2841 pdraw
->driDrawable
);
2848 opcode
= __glXSetupForCommand(dpy
);
2853 GetReqExtra(GLXVendorPrivate
, 12 + 8 * i
, req
);
2854 req
->reqType
= opcode
;
2855 req
->glxCode
= X_GLXVendorPrivate
;
2856 req
->vendorCode
= X_GLXvop_BindTexImageEXT
;
2857 req
->contextTag
= gc
->currentContextTag
;
2859 drawable_ptr
= (CARD32
*) (req
+ 1);
2860 buffer_ptr
= (INT32
*) (drawable_ptr
+ 1);
2861 num_attrib_ptr
= (CARD32
*) (buffer_ptr
+ 1);
2862 attrib_ptr
= (CARD32
*) (num_attrib_ptr
+ 1);
2864 *drawable_ptr
= drawable
;
2865 *buffer_ptr
= buffer
;
2866 *num_attrib_ptr
= (CARD32
) i
;
2870 while (attrib_list
[i
* 2] != None
) {
2871 *attrib_ptr
++ = (CARD32
) attrib_list
[i
* 2 + 0];
2872 *attrib_ptr
++ = (CARD32
) attrib_list
[i
* 2 + 1];
2882 __glXReleaseTexImageEXT(Display
* dpy
, GLXDrawable drawable
, int buffer
)
2884 xGLXVendorPrivateReq
*req
;
2885 GLXContext gc
= __glXGetCurrentContext();
2886 CARD32
*drawable_ptr
;
2890 if ((gc
== NULL
) || GC_IS_DIRECT(gc
))
2893 opcode
= __glXSetupForCommand(dpy
);
2898 GetReqExtra(GLXVendorPrivate
, sizeof(CARD32
) + sizeof(INT32
), req
);
2899 req
->reqType
= opcode
;
2900 req
->glxCode
= X_GLXVendorPrivate
;
2901 req
->vendorCode
= X_GLXvop_ReleaseTexImageEXT
;
2902 req
->contextTag
= gc
->currentContextTag
;
2904 drawable_ptr
= (CARD32
*) (req
+ 1);
2905 buffer_ptr
= (INT32
*) (drawable_ptr
+ 1);
2907 *drawable_ptr
= drawable
;
2908 *buffer_ptr
= buffer
;
2917 * \c strdup is actually not a standard ANSI C or POSIX routine.
2918 * Irix will not define it if ANSI mode is in effect.
2923 __glXstrdup(const char *str
)
2926 copy
= (char *) Xmalloc(strlen(str
) + 1);
2934 ** glXGetProcAddress support
2937 struct name_address_pair
2943 #define GLX_FUNCTION(f) { # f, (GLvoid *) f }
2944 #define GLX_FUNCTION2(n,f) { # n, (GLvoid *) f }
2946 static const struct name_address_pair GLX_functions
[] = {
2947 /*** GLX_VERSION_1_0 ***/
2948 GLX_FUNCTION(glXChooseVisual
),
2949 GLX_FUNCTION(glXCopyContext
),
2950 GLX_FUNCTION(glXCreateContext
),
2951 GLX_FUNCTION(glXCreateGLXPixmap
),
2952 GLX_FUNCTION(glXDestroyContext
),
2953 GLX_FUNCTION(glXDestroyGLXPixmap
),
2954 GLX_FUNCTION(glXGetConfig
),
2955 GLX_FUNCTION(glXGetCurrentContext
),
2956 GLX_FUNCTION(glXGetCurrentDrawable
),
2957 GLX_FUNCTION(glXIsDirect
),
2958 GLX_FUNCTION(glXMakeCurrent
),
2959 GLX_FUNCTION(glXQueryExtension
),
2960 GLX_FUNCTION(glXQueryVersion
),
2961 GLX_FUNCTION(glXSwapBuffers
),
2962 GLX_FUNCTION(glXUseXFont
),
2963 GLX_FUNCTION(glXWaitGL
),
2964 GLX_FUNCTION(glXWaitX
),
2966 /*** GLX_VERSION_1_1 ***/
2967 GLX_FUNCTION(glXGetClientString
),
2968 GLX_FUNCTION(glXQueryExtensionsString
),
2969 GLX_FUNCTION(glXQueryServerString
),
2971 /*** GLX_VERSION_1_2 ***/
2972 GLX_FUNCTION(glXGetCurrentDisplay
),
2974 /*** GLX_VERSION_1_3 ***/
2975 GLX_FUNCTION(glXChooseFBConfig
),
2976 GLX_FUNCTION(glXCreateNewContext
),
2977 GLX_FUNCTION(glXCreatePbuffer
),
2978 GLX_FUNCTION(glXCreatePixmap
),
2979 GLX_FUNCTION(glXCreateWindow
),
2980 GLX_FUNCTION(glXDestroyPbuffer
),
2981 GLX_FUNCTION(glXDestroyPixmap
),
2982 GLX_FUNCTION(glXDestroyWindow
),
2983 GLX_FUNCTION(glXGetCurrentReadDrawable
),
2984 GLX_FUNCTION(glXGetFBConfigAttrib
),
2985 GLX_FUNCTION(glXGetFBConfigs
),
2986 GLX_FUNCTION(glXGetSelectedEvent
),
2987 GLX_FUNCTION(glXGetVisualFromFBConfig
),
2988 GLX_FUNCTION(glXMakeContextCurrent
),
2989 GLX_FUNCTION(glXQueryContext
),
2990 GLX_FUNCTION(glXQueryDrawable
),
2991 GLX_FUNCTION(glXSelectEvent
),
2993 /*** GLX_SGI_swap_control ***/
2994 GLX_FUNCTION2(glXSwapIntervalSGI
, __glXSwapIntervalSGI
),
2996 /*** GLX_SGI_video_sync ***/
2997 GLX_FUNCTION2(glXGetVideoSyncSGI
, __glXGetVideoSyncSGI
),
2998 GLX_FUNCTION2(glXWaitVideoSyncSGI
, __glXWaitVideoSyncSGI
),
3000 /*** GLX_SGI_make_current_read ***/
3001 GLX_FUNCTION2(glXMakeCurrentReadSGI
, glXMakeContextCurrent
),
3002 GLX_FUNCTION2(glXGetCurrentReadDrawableSGI
, glXGetCurrentReadDrawable
),
3004 /*** GLX_EXT_import_context ***/
3005 GLX_FUNCTION(glXFreeContextEXT
),
3006 GLX_FUNCTION(glXGetContextIDEXT
),
3007 GLX_FUNCTION2(glXGetCurrentDisplayEXT
, glXGetCurrentDisplay
),
3008 GLX_FUNCTION(glXImportContextEXT
),
3009 GLX_FUNCTION2(glXQueryContextInfoEXT
, glXQueryContext
),
3011 /*** GLX_SGIX_fbconfig ***/
3012 GLX_FUNCTION2(glXGetFBConfigAttribSGIX
, glXGetFBConfigAttrib
),
3013 GLX_FUNCTION2(glXChooseFBConfigSGIX
, glXChooseFBConfig
),
3014 GLX_FUNCTION(glXCreateGLXPixmapWithConfigSGIX
),
3015 GLX_FUNCTION(glXCreateContextWithConfigSGIX
),
3016 GLX_FUNCTION2(glXGetVisualFromFBConfigSGIX
, glXGetVisualFromFBConfig
),
3017 GLX_FUNCTION(glXGetFBConfigFromVisualSGIX
),
3019 /*** GLX_SGIX_pbuffer ***/
3020 GLX_FUNCTION(glXCreateGLXPbufferSGIX
),
3021 GLX_FUNCTION(glXDestroyGLXPbufferSGIX
),
3022 GLX_FUNCTION(glXQueryGLXPbufferSGIX
),
3023 GLX_FUNCTION(glXSelectEventSGIX
),
3024 GLX_FUNCTION(glXGetSelectedEventSGIX
),
3026 /*** GLX_SGIX_swap_group ***/
3027 GLX_FUNCTION2(glXJoinSwapGroupSGIX
, __glXJoinSwapGroupSGIX
),
3029 /*** GLX_SGIX_swap_barrier ***/
3030 GLX_FUNCTION2(glXBindSwapBarrierSGIX
, __glXBindSwapBarrierSGIX
),
3031 GLX_FUNCTION2(glXQueryMaxSwapBarriersSGIX
, __glXQueryMaxSwapBarriersSGIX
),
3033 /*** GLX_MESA_allocate_memory ***/
3034 GLX_FUNCTION(glXAllocateMemoryMESA
),
3035 GLX_FUNCTION(glXFreeMemoryMESA
),
3036 GLX_FUNCTION(glXGetMemoryOffsetMESA
),
3038 /*** GLX_MESA_copy_sub_buffer ***/
3039 GLX_FUNCTION2(glXCopySubBufferMESA
, __glXCopySubBufferMESA
),
3041 /*** GLX_MESA_pixmap_colormap ***/
3042 GLX_FUNCTION(glXCreateGLXPixmapMESA
),
3044 /*** GLX_MESA_release_buffers ***/
3045 GLX_FUNCTION2(glXReleaseBuffersMESA
, __glXReleaseBuffersMESA
),
3047 /*** GLX_MESA_swap_control ***/
3048 GLX_FUNCTION2(glXSwapIntervalMESA
, __glXSwapIntervalMESA
),
3049 GLX_FUNCTION2(glXGetSwapIntervalMESA
, __glXGetSwapIntervalMESA
),
3051 /*** GLX_MESA_swap_frame_usage ***/
3052 GLX_FUNCTION2(glXBeginFrameTrackingMESA
, __glXBeginFrameTrackingMESA
),
3053 GLX_FUNCTION2(glXEndFrameTrackingMESA
, __glXEndFrameTrackingMESA
),
3054 GLX_FUNCTION2(glXGetFrameUsageMESA
, __glXGetFrameUsageMESA
),
3055 GLX_FUNCTION2(glXQueryFrameTrackingMESA
, __glXQueryFrameTrackingMESA
),
3057 /*** GLX_ARB_get_proc_address ***/
3058 GLX_FUNCTION(glXGetProcAddressARB
),
3061 GLX_FUNCTION2(glXGetProcAddress
, glXGetProcAddressARB
),
3063 /*** GLX_OML_sync_control ***/
3064 GLX_FUNCTION2(glXWaitForSbcOML
, __glXWaitForSbcOML
),
3065 GLX_FUNCTION2(glXWaitForMscOML
, __glXWaitForMscOML
),
3066 GLX_FUNCTION2(glXSwapBuffersMscOML
, __glXSwapBuffersMscOML
),
3067 GLX_FUNCTION2(glXGetMscRateOML
, __glXGetMscRateOML
),
3068 GLX_FUNCTION2(glXGetSyncValuesOML
, __glXGetSyncValuesOML
),
3070 /*** GLX_EXT_texture_from_pixmap ***/
3071 GLX_FUNCTION2(glXBindTexImageEXT
, __glXBindTexImageEXT
),
3072 GLX_FUNCTION2(glXReleaseTexImageEXT
, __glXReleaseTexImageEXT
),
3074 #ifdef GLX_DIRECT_RENDERING
3075 /*** DRI configuration ***/
3076 GLX_FUNCTION(glXGetScreenDriver
),
3077 GLX_FUNCTION(glXGetDriverConfig
),
3080 {NULL
, NULL
} /* end of list */
3084 static const GLvoid
*
3085 get_glx_proc_address(const char *funcName
)
3089 /* try static functions */
3090 for (i
= 0; GLX_functions
[i
].Name
; i
++) {
3091 if (strcmp(GLX_functions
[i
].Name
, funcName
) == 0)
3092 return GLX_functions
[i
].Address
;
3100 * Get the address of a named GL function. This is the pre-GLX 1.4 name for
3101 * \c glXGetProcAddress.
3103 * \param procName Name of a GL or GLX function.
3104 * \returns A pointer to the named function
3106 * \sa glXGetProcAddress
3108 PUBLIC
void (*glXGetProcAddressARB(const GLubyte
* procName
)) (void)
3110 typedef void (*gl_function
) (void);
3114 /* Search the table of GLX and internal functions first. If that
3115 * fails and the supplied name could be a valid core GL name, try
3116 * searching the core GL function table. This check is done to prevent
3117 * DRI based drivers from searching the core GL function table for
3118 * internal API functions.
3121 f
= (gl_function
) get_glx_proc_address((const char *) procName
);
3122 if ((f
== NULL
) && (procName
[0] == 'g') && (procName
[1] == 'l')
3123 && (procName
[2] != 'X')) {
3124 f
= (gl_function
) _glapi_get_proc_address((const char *) procName
);
3131 * Get the address of a named GL function. This is the GLX 1.4 name for
3132 * \c glXGetProcAddressARB.
3134 * \param procName Name of a GL or GLX function.
3135 * \returns A pointer to the named function
3137 * \sa glXGetProcAddressARB
3139 PUBLIC
void (*glXGetProcAddress(const GLubyte
* procName
)) (void)
3140 #if defined(__GNUC__) && !defined(GLX_ALIAS_UNSUPPORTED)
3141 __attribute__ ((alias("glXGetProcAddressARB")));
3144 return glXGetProcAddressARB(procName
);
3146 #endif /* __GNUC__ */
3149 #ifdef GLX_DIRECT_RENDERING
3151 * Get the unadjusted system time (UST). Currently, the UST is measured in
3152 * microseconds since Epoc. The actual resolution of the UST may vary from
3153 * system to system, and the units may vary from release to release.
3154 * Drivers should not call this function directly. They should instead use
3155 * \c glXGetProcAddress to obtain a pointer to the function.
3157 * \param ust Location to store the 64-bit UST
3158 * \returns Zero on success or a negative errno value on failure.
3160 * \sa glXGetProcAddress, PFNGLXGETUSTPROC
3162 * \since Internal API version 20030317.
3165 __glXGetUST(int64_t * ust
)
3173 if (gettimeofday(&tv
, NULL
) == 0) {
3174 ust
[0] = (tv
.tv_sec
* 1000000) + tv
.tv_usec
;
3181 #endif /* GLX_DIRECT_RENDERING */