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
);
379 gc
= AllocateGLXContext(dpy
);
383 if ((vis
== NULL
) && (fbconfig
== NULL
))
386 #ifdef GLX_DIRECT_RENDERING
387 if (allowDirect
&& psc
->driScreen
) {
388 gc
->driContext
= psc
->driScreen
->createContext(psc
, fbconfig
, gc
,
389 shareList
, renderType
);
390 if (gc
->driContext
!= NULL
) {
394 gc
->isDirect
= GL_TRUE
;
401 case X_GLXCreateContext
: {
402 xGLXCreateContextReq
*req
;
404 /* Send the glXCreateContext request */
405 GetReq(GLXCreateContext
, req
);
406 req
->reqType
= gc
->majorOpcode
;
407 req
->glxCode
= X_GLXCreateContext
;
408 req
->context
= gc
->xid
= XAllocID(dpy
);
409 req
->visual
= vis
->visualid
;
410 req
->screen
= screen
;
411 req
->shareList
= shareList
? shareList
->xid
: None
;
412 req
->isDirect
= GC_IS_DIRECT(gc
);
416 case X_GLXCreateNewContext
: {
417 xGLXCreateNewContextReq
*req
;
419 /* Send the glXCreateNewContext request */
420 GetReq(GLXCreateNewContext
, req
);
421 req
->reqType
= gc
->majorOpcode
;
422 req
->glxCode
= X_GLXCreateNewContext
;
423 req
->context
= gc
->xid
= XAllocID(dpy
);
424 req
->fbconfig
= fbconfig
->fbconfigID
;
425 req
->screen
= screen
;
426 req
->renderType
= renderType
;
427 req
->shareList
= shareList
? shareList
->xid
: None
;
428 req
->isDirect
= GC_IS_DIRECT(gc
);
432 case X_GLXvop_CreateContextWithConfigSGIX
: {
433 xGLXVendorPrivateWithReplyReq
*vpreq
;
434 xGLXCreateContextWithConfigSGIXReq
*req
;
436 /* Send the glXCreateNewContext request */
437 GetReqExtra(GLXVendorPrivateWithReply
,
438 sz_xGLXCreateContextWithConfigSGIXReq
-
439 sz_xGLXVendorPrivateWithReplyReq
, vpreq
);
440 req
= (xGLXCreateContextWithConfigSGIXReq
*) vpreq
;
441 req
->reqType
= gc
->majorOpcode
;
442 req
->glxCode
= X_GLXVendorPrivateWithReply
;
443 req
->vendorCode
= X_GLXvop_CreateContextWithConfigSGIX
;
444 req
->context
= gc
->xid
= XAllocID(dpy
);
445 req
->fbconfig
= fbconfig
->fbconfigID
;
446 req
->screen
= screen
;
447 req
->renderType
= renderType
;
448 req
->shareList
= shareList
? shareList
->xid
: None
;
449 req
->isDirect
= GC_IS_DIRECT(gc
);
454 /* What to do here? This case is the sign of an internal error. It
455 * should never be reachable.
463 gc
->imported
= GL_FALSE
;
464 gc
->renderType
= renderType
;
470 glXCreateContext(Display
* dpy
, XVisualInfo
* vis
,
471 GLXContext shareList
, Bool allowDirect
)
473 const __GLcontextModes
*mode
= NULL
;
476 #ifdef GLX_DIRECT_RENDERING
477 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, vis
->screen
);
479 mode
= _gl_context_modes_find_visual(psc
->visuals
, vis
->visualid
);
483 error
.errorCode
= BadValue
;
484 error
.resourceID
= vis
->visualid
;
485 error
.sequenceNumber
= dpy
->request
;
486 error
.type
= X_Error
;
487 error
.majorCode
= __glXSetupForCommand(dpy
);
488 error
.minorCode
= X_GLXCreateContext
;
489 _XError(dpy
, &error
);
493 renderType
= mode
->rgbMode
? GLX_RGBA_TYPE
: GLX_COLOR_INDEX_TYPE
;
496 return CreateContext(dpy
, vis
, mode
, shareList
, allowDirect
,
497 X_GLXCreateContext
, renderType
, vis
->screen
);
501 __glXFreeContext(__GLXcontext
* gc
)
504 XFree((char *) gc
->vendor
);
506 XFree((char *) gc
->renderer
);
508 XFree((char *) gc
->version
);
510 XFree((char *) gc
->extensions
);
511 __glFreeAttributeState(gc
);
512 XFree((char *) gc
->buf
);
513 Xfree((char *) gc
->client_state_private
);
519 ** Destroy the named context
522 DestroyContext(Display
* dpy
, GLXContext gc
)
524 xGLXDestroyContextReq
*req
;
529 opcode
= __glXSetupForCommand(dpy
);
530 if (!opcode
|| !gc
) {
536 imported
= gc
->imported
;
539 if (gc
->currentDpy
) {
540 /* This context is bound to some thread. According to the man page,
541 * we should not actually delete the context until it's unbound.
542 * Note that we set gc->xid = None above. In MakeContextCurrent()
543 * we check for that and delete the context there.
549 #ifdef GLX_DIRECT_RENDERING
550 /* Destroy the direct rendering context */
551 if (gc
->driContext
) {
552 (*gc
->driContext
->destroyContext
) (gc
->driContext
, gc
->psc
, dpy
);
553 gc
->driContext
= NULL
;
554 GarbageCollectDRIDrawables(dpy
, gc
->psc
);
558 __glXFreeVertexArrayState(gc
);
560 if (gc
->currentDpy
) {
561 /* Have to free later cuz it's in use now */
565 /* Destroy the handle if not current to anybody */
567 __glXFreeContext(gc
);
572 ** This dpy also created the server side part of the context.
573 ** Send the glXDestroyContext request.
576 GetReq(GLXDestroyContext
, req
);
577 req
->reqType
= opcode
;
578 req
->glxCode
= X_GLXDestroyContext
;
586 glXDestroyContext(Display
* dpy
, GLXContext gc
)
588 DestroyContext(dpy
, gc
);
592 ** Return the major and minor version #s for the GLX extension
595 glXQueryVersion(Display
* dpy
, int *major
, int *minor
)
597 __GLXdisplayPrivate
*priv
;
599 /* Init the extension. This fetches the major and minor version. */
600 priv
= __glXInitialize(dpy
);
605 *major
= priv
->majorVersion
;
607 *minor
= priv
->minorVersion
;
612 ** Query the existance of the GLX extension
615 glXQueryExtension(Display
* dpy
, int *errorBase
, int *eventBase
)
617 int major_op
, erb
, evb
;
620 rv
= XQueryExtension(dpy
, GLX_EXTENSION_NAME
, &major_op
, &evb
, &erb
);
631 ** Put a barrier in the token stream that forces the GL to finish its
632 ** work before X can proceed.
638 GLXContext gc
= __glXGetCurrentContext();
639 Display
*dpy
= gc
->currentDpy
;
644 /* Flush any pending commands out */
645 __glXFlushRenderBuffer(gc
, gc
->pc
);
647 #ifdef GLX_DIRECT_RENDERING
648 if (gc
->driContext
) {
650 __GLXDRIdrawable
*pdraw
=
651 GetGLXDRIDrawable(dpy
, gc
->currentDrawable
, &screen
);
654 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, screen
);
656 if (psc
->driScreen
->waitGL
!= NULL
)
657 (*psc
->driScreen
->waitGL
) (pdraw
);
663 /* Send the glXWaitGL request */
665 GetReq(GLXWaitGL
, req
);
666 req
->reqType
= gc
->majorOpcode
;
667 req
->glxCode
= X_GLXWaitGL
;
668 req
->contextTag
= gc
->currentContextTag
;
674 ** Put a barrier in the token stream that forces X to finish its
675 ** work before GL can proceed.
681 GLXContext gc
= __glXGetCurrentContext();
682 Display
*dpy
= gc
->currentDpy
;
687 /* Flush any pending commands out */
688 __glXFlushRenderBuffer(gc
, gc
->pc
);
690 #ifdef GLX_DIRECT_RENDERING
691 if (gc
->driContext
) {
693 __GLXDRIdrawable
*pdraw
=
694 GetGLXDRIDrawable(dpy
, gc
->currentDrawable
, &screen
);
697 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, screen
);
698 if (psc
->driScreen
->waitX
!= NULL
)
699 (*psc
->driScreen
->waitX
) (pdraw
);
708 ** Send the glXWaitX request.
711 GetReq(GLXWaitX
, req
);
712 req
->reqType
= gc
->majorOpcode
;
713 req
->glxCode
= X_GLXWaitX
;
714 req
->contextTag
= gc
->currentContextTag
;
720 glXUseXFont(Font font
, int first
, int count
, int listBase
)
722 xGLXUseXFontReq
*req
;
723 GLXContext gc
= __glXGetCurrentContext();
724 Display
*dpy
= gc
->currentDpy
;
729 /* Flush any pending commands out */
730 (void) __glXFlushRenderBuffer(gc
, gc
->pc
);
732 #ifdef GLX_DIRECT_RENDERING
733 if (gc
->driContext
) {
734 DRI_glXUseXFont(font
, first
, count
, listBase
);
739 /* Send the glXUseFont request */
741 GetReq(GLXUseXFont
, req
);
742 req
->reqType
= gc
->majorOpcode
;
743 req
->glxCode
= X_GLXUseXFont
;
744 req
->contextTag
= gc
->currentContextTag
;
748 req
->listBase
= listBase
;
753 /************************************************************************/
756 ** Copy the source context to the destination context using the
760 glXCopyContext(Display
* dpy
, GLXContext source
,
761 GLXContext dest
, unsigned long mask
)
763 xGLXCopyContextReq
*req
;
764 GLXContext gc
= __glXGetCurrentContext();
768 opcode
= __glXSetupForCommand(dpy
);
773 #ifdef GLX_DIRECT_RENDERING
774 if (gc
->driContext
) {
775 /* NOT_DONE: This does not work yet */
780 ** If the source is the current context, send its tag so that the context
781 ** can be flushed before the copy.
783 if (source
== gc
&& dpy
== gc
->currentDpy
) {
784 tag
= gc
->currentContextTag
;
790 /* Send the glXCopyContext request */
792 GetReq(GLXCopyContext
, req
);
793 req
->reqType
= opcode
;
794 req
->glxCode
= X_GLXCopyContext
;
795 req
->source
= source
? source
->xid
: None
;
796 req
->dest
= dest
? dest
->xid
: None
;
798 req
->contextTag
= tag
;
805 * Determine if a context uses direct rendering.
807 * \param dpy Display where the context was created.
808 * \param contextID ID of the context to be tested.
810 * \returns \c GL_TRUE if the context is direct rendering or not.
813 __glXIsDirect(Display
* dpy
, GLXContextID contextID
)
815 #if !defined(USE_XCB)
816 xGLXIsDirectReq
*req
;
817 xGLXIsDirectReply reply
;
821 opcode
= __glXSetupForCommand(dpy
);
827 xcb_connection_t
*c
= XGetXCBConnection(dpy
);
828 xcb_glx_is_direct_reply_t
*reply
= xcb_glx_is_direct_reply(c
,
833 const Bool is_direct
= reply
->is_direct
? True
: False
;
838 /* Send the glXIsDirect request */
840 GetReq(GLXIsDirect
, req
);
841 req
->reqType
= opcode
;
842 req
->glxCode
= X_GLXIsDirect
;
843 req
->context
= contextID
;
844 _XReply(dpy
, (xReply
*) & reply
, 0, False
);
848 return reply
.isDirect
;
854 * Shouldn't this function \b always return \c GL_FALSE when
855 * \c GLX_DIRECT_RENDERING is not defined? Do we really need to bother with
856 * the GLX protocol here at all?
859 glXIsDirect(Display
* dpy
, GLXContext gc
)
864 else if (GC_IS_DIRECT(gc
)) {
867 return __glXIsDirect(dpy
, gc
->xid
);
871 glXCreateGLXPixmap(Display
* dpy
, XVisualInfo
* vis
, Pixmap pixmap
)
873 xGLXCreateGLXPixmapReq
*req
;
877 opcode
= __glXSetupForCommand(dpy
);
882 /* Send the glXCreateGLXPixmap request */
884 GetReq(GLXCreateGLXPixmap
, req
);
885 req
->reqType
= opcode
;
886 req
->glxCode
= X_GLXCreateGLXPixmap
;
887 req
->screen
= vis
->screen
;
888 req
->visual
= vis
->visualid
;
889 req
->pixmap
= pixmap
;
890 req
->glxpixmap
= xid
= XAllocID(dpy
);
894 #ifdef GLX_DIRECT_RENDERING
896 /* FIXME: Maybe delay __DRIdrawable creation until the drawable
897 * is actually bound to a context... */
899 __GLXdisplayPrivate
*const priv
= __glXInitialize(dpy
);
900 __GLXDRIdrawable
*pdraw
;
901 __GLXscreenConfigs
*psc
;
902 __GLcontextModes
*modes
;
904 psc
= &priv
->screenConfigs
[vis
->screen
];
905 if (psc
->driScreen
== NULL
)
907 modes
= _gl_context_modes_find_visual(psc
->visuals
, vis
->visualid
);
908 pdraw
= psc
->driScreen
->createDrawable(psc
, pixmap
, req
->glxpixmap
, modes
);
910 fprintf(stderr
, "failed to create pixmap\n");
914 if (__glxHashInsert(psc
->drawHash
, req
->glxpixmap
, pdraw
)) {
915 (*pdraw
->destroyDrawable
) (pdraw
);
916 return None
; /* FIXME: Check what we're supposed to do here... */
925 ** Destroy the named pixmap
928 glXDestroyGLXPixmap(Display
* dpy
, GLXPixmap glxpixmap
)
930 xGLXDestroyGLXPixmapReq
*req
;
933 opcode
= __glXSetupForCommand(dpy
);
938 /* Send the glXDestroyGLXPixmap request */
940 GetReq(GLXDestroyGLXPixmap
, req
);
941 req
->reqType
= opcode
;
942 req
->glxCode
= X_GLXDestroyGLXPixmap
;
943 req
->glxpixmap
= glxpixmap
;
947 #ifdef GLX_DIRECT_RENDERING
950 __GLXdisplayPrivate
*const priv
= __glXInitialize(dpy
);
951 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, glxpixmap
, &screen
);
952 __GLXscreenConfigs
*psc
= &priv
->screenConfigs
[screen
];
955 (*pdraw
->destroyDrawable
) (pdraw
);
956 __glxHashDelete(psc
->drawHash
, glxpixmap
);
963 glXSwapBuffers(Display
* dpy
, GLXDrawable drawable
)
971 xGLXSwapBuffersReq
*req
;
974 #ifdef GLX_DIRECT_RENDERING
975 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
, NULL
);
979 (*pdraw
->psc
->driScreen
->swapBuffers
)(pdraw
, 0, 0, 0);
984 opcode
= __glXSetupForCommand(dpy
);
990 ** The calling thread may or may not have a current context. If it
991 ** does, send the context tag so the server can do a flush.
993 gc
= __glXGetCurrentContext();
994 if ((gc
!= NULL
) && (dpy
== gc
->currentDpy
) &&
995 ((drawable
== gc
->currentDrawable
)
996 || (drawable
== gc
->currentReadable
))) {
997 tag
= gc
->currentContextTag
;
1004 c
= XGetXCBConnection(dpy
);
1005 xcb_glx_swap_buffers(c
, tag
, drawable
);
1008 /* Send the glXSwapBuffers request */
1010 GetReq(GLXSwapBuffers
, req
);
1011 req
->reqType
= opcode
;
1012 req
->glxCode
= X_GLXSwapBuffers
;
1013 req
->drawable
= drawable
;
1014 req
->contextTag
= tag
;
1018 #endif /* USE_XCB */
1023 ** Return configuration information for the given display, screen and
1024 ** visual combination.
1027 glXGetConfig(Display
* dpy
, XVisualInfo
* vis
, int attribute
,
1030 __GLXdisplayPrivate
*priv
;
1031 __GLXscreenConfigs
*psc
;
1032 __GLcontextModes
*modes
;
1035 status
= GetGLXPrivScreenConfig(dpy
, vis
->screen
, &priv
, &psc
);
1036 if (status
== Success
) {
1037 modes
= _gl_context_modes_find_visual(psc
->visuals
, vis
->visualid
);
1039 /* Lookup attribute after first finding a match on the visual */
1040 if (modes
!= NULL
) {
1041 return _gl_get_context_mode_data(modes
, attribute
, value_return
);
1044 status
= GLX_BAD_VISUAL
;
1048 ** If we can't find the config for this visual, this visual is not
1049 ** supported by the OpenGL implementation on the server.
1051 if ((status
== GLX_BAD_VISUAL
) && (attribute
== GLX_USE_GL
)) {
1052 *value_return
= GL_FALSE
;
1059 /************************************************************************/
1062 init_fbconfig_for_chooser(__GLcontextModes
* config
,
1063 GLboolean fbconfig_style_tags
)
1065 memset(config
, 0, sizeof(__GLcontextModes
));
1066 config
->visualID
= (XID
) GLX_DONT_CARE
;
1067 config
->visualType
= GLX_DONT_CARE
;
1069 /* glXChooseFBConfig specifies different defaults for these two than
1072 if (fbconfig_style_tags
) {
1073 config
->rgbMode
= GL_TRUE
;
1074 config
->doubleBufferMode
= GLX_DONT_CARE
;
1077 config
->visualRating
= GLX_DONT_CARE
;
1078 config
->transparentPixel
= GLX_NONE
;
1079 config
->transparentRed
= GLX_DONT_CARE
;
1080 config
->transparentGreen
= GLX_DONT_CARE
;
1081 config
->transparentBlue
= GLX_DONT_CARE
;
1082 config
->transparentAlpha
= GLX_DONT_CARE
;
1083 config
->transparentIndex
= GLX_DONT_CARE
;
1085 config
->drawableType
= GLX_WINDOW_BIT
;
1086 config
->renderType
=
1087 (config
->rgbMode
) ? GLX_RGBA_BIT
: GLX_COLOR_INDEX_BIT
;
1088 config
->xRenderable
= GLX_DONT_CARE
;
1089 config
->fbconfigID
= (GLXFBConfigID
) (GLX_DONT_CARE
);
1091 config
->swapMethod
= GLX_DONT_CARE
;
1094 #define MATCH_DONT_CARE( param ) \
1096 if ( ((int) a-> param != (int) GLX_DONT_CARE) \
1097 && (a-> param != b-> param) ) { \
1102 #define MATCH_MINIMUM( param ) \
1104 if ( ((int) a-> param != (int) GLX_DONT_CARE) \
1105 && (a-> param > b-> param) ) { \
1110 #define MATCH_EXACT( param ) \
1112 if ( a-> param != b-> param) { \
1118 * Determine if two GLXFBConfigs are compatible.
1120 * \param a Application specified config to test.
1121 * \param b Server specified config to test against \c a.
1124 fbconfigs_compatible(const __GLcontextModes
* const a
,
1125 const __GLcontextModes
* const b
)
1127 MATCH_DONT_CARE(doubleBufferMode
);
1128 MATCH_DONT_CARE(visualType
);
1129 MATCH_DONT_CARE(visualRating
);
1130 MATCH_DONT_CARE(xRenderable
);
1131 MATCH_DONT_CARE(fbconfigID
);
1132 MATCH_DONT_CARE(swapMethod
);
1134 MATCH_MINIMUM(rgbBits
);
1135 MATCH_MINIMUM(numAuxBuffers
);
1136 MATCH_MINIMUM(redBits
);
1137 MATCH_MINIMUM(greenBits
);
1138 MATCH_MINIMUM(blueBits
);
1139 MATCH_MINIMUM(alphaBits
);
1140 MATCH_MINIMUM(depthBits
);
1141 MATCH_MINIMUM(stencilBits
);
1142 MATCH_MINIMUM(accumRedBits
);
1143 MATCH_MINIMUM(accumGreenBits
);
1144 MATCH_MINIMUM(accumBlueBits
);
1145 MATCH_MINIMUM(accumAlphaBits
);
1146 MATCH_MINIMUM(sampleBuffers
);
1147 MATCH_MINIMUM(maxPbufferWidth
);
1148 MATCH_MINIMUM(maxPbufferHeight
);
1149 MATCH_MINIMUM(maxPbufferPixels
);
1150 MATCH_MINIMUM(samples
);
1152 MATCH_DONT_CARE(stereoMode
);
1155 if (((a
->drawableType
& b
->drawableType
) == 0)
1156 || ((a
->renderType
& b
->renderType
) == 0)) {
1161 /* There is a bug in a few of the XFree86 DDX drivers. They contain
1162 * visuals with a "transparent type" of 0 when they really mean GLX_NONE.
1163 * Technically speaking, it is a bug in the DDX driver, but there is
1164 * enough of an installed base to work around the problem here. In any
1165 * case, 0 is not a valid value of the transparent type, so we'll treat 0
1166 * from the app as GLX_DONT_CARE. We'll consider GLX_NONE from the app and
1167 * 0 from the server to be a match to maintain backward compatibility with
1168 * the (broken) drivers.
1171 if (a
->transparentPixel
!= (int) GLX_DONT_CARE
&& a
->transparentPixel
!= 0) {
1172 if (a
->transparentPixel
== GLX_NONE
) {
1173 if (b
->transparentPixel
!= GLX_NONE
&& b
->transparentPixel
!= 0)
1177 MATCH_EXACT(transparentPixel
);
1180 switch (a
->transparentPixel
) {
1181 case GLX_TRANSPARENT_RGB
:
1182 MATCH_DONT_CARE(transparentRed
);
1183 MATCH_DONT_CARE(transparentGreen
);
1184 MATCH_DONT_CARE(transparentBlue
);
1185 MATCH_DONT_CARE(transparentAlpha
);
1188 case GLX_TRANSPARENT_INDEX
:
1189 MATCH_DONT_CARE(transparentIndex
);
1201 /* There's some trickly language in the GLX spec about how this is supposed
1202 * to work. Basically, if a given component size is either not specified
1203 * or the requested size is zero, it is supposed to act like PERFER_SMALLER.
1204 * Well, that's really hard to do with the code as-is. This behavior is
1205 * closer to correct, but still not technically right.
1207 #define PREFER_LARGER_OR_ZERO(comp) \
1209 if ( ((*a)-> comp) != ((*b)-> comp) ) { \
1210 if ( ((*a)-> comp) == 0 ) { \
1213 else if ( ((*b)-> comp) == 0 ) { \
1217 return ((*b)-> comp) - ((*a)-> comp) ; \
1222 #define PREFER_LARGER(comp) \
1224 if ( ((*a)-> comp) != ((*b)-> comp) ) { \
1225 return ((*b)-> comp) - ((*a)-> comp) ; \
1229 #define PREFER_SMALLER(comp) \
1231 if ( ((*a)-> comp) != ((*b)-> comp) ) { \
1232 return ((*a)-> comp) - ((*b)-> comp) ; \
1237 * Compare two GLXFBConfigs. This function is intended to be used as the
1238 * compare function passed in to qsort.
1240 * \returns If \c a is a "better" config, according to the specification of
1241 * SGIX_fbconfig, a number less than zero is returned. If \c b is
1242 * better, then a number greater than zero is return. If both are
1243 * equal, zero is returned.
1244 * \sa qsort, glXChooseVisual, glXChooseFBConfig, glXChooseFBConfigSGIX
1247 fbconfig_compare(const __GLcontextModes
* const *const a
,
1248 const __GLcontextModes
* const *const b
)
1250 /* The order of these comparisons must NOT change. It is defined by
1251 * the GLX 1.3 spec and ARB_multisample.
1254 PREFER_SMALLER(visualSelectGroup
);
1256 /* The sort order for the visualRating is GLX_NONE, GLX_SLOW, and
1257 * GLX_NON_CONFORMANT_CONFIG. It just so happens that this is the
1258 * numerical sort order of the enums (0x8000, 0x8001, and 0x800D).
1260 PREFER_SMALLER(visualRating
);
1262 /* This isn't quite right. It is supposed to compare the sum of the
1263 * components the user specifically set minimums for.
1265 PREFER_LARGER_OR_ZERO(redBits
);
1266 PREFER_LARGER_OR_ZERO(greenBits
);
1267 PREFER_LARGER_OR_ZERO(blueBits
);
1268 PREFER_LARGER_OR_ZERO(alphaBits
);
1270 PREFER_SMALLER(rgbBits
);
1272 if (((*a
)->doubleBufferMode
!= (*b
)->doubleBufferMode
)) {
1273 /* Prefer single-buffer.
1275 return (!(*a
)->doubleBufferMode
) ? -1 : 1;
1278 PREFER_SMALLER(numAuxBuffers
);
1280 PREFER_LARGER_OR_ZERO(depthBits
);
1281 PREFER_SMALLER(stencilBits
);
1283 /* This isn't quite right. It is supposed to compare the sum of the
1284 * components the user specifically set minimums for.
1286 PREFER_LARGER_OR_ZERO(accumRedBits
);
1287 PREFER_LARGER_OR_ZERO(accumGreenBits
);
1288 PREFER_LARGER_OR_ZERO(accumBlueBits
);
1289 PREFER_LARGER_OR_ZERO(accumAlphaBits
);
1291 PREFER_SMALLER(visualType
);
1293 /* None of the multisample specs say where this comparison should happen,
1294 * so I put it near the end.
1296 PREFER_SMALLER(sampleBuffers
);
1297 PREFER_SMALLER(samples
);
1299 /* None of the pbuffer or fbconfig specs say that this comparison needs
1300 * to happen at all, but it seems like it should.
1302 PREFER_LARGER(maxPbufferWidth
);
1303 PREFER_LARGER(maxPbufferHeight
);
1304 PREFER_LARGER(maxPbufferPixels
);
1311 * Selects and sorts a subset of the supplied configs based on the attributes.
1312 * This function forms to basis of \c glXChooseVisual, \c glXChooseFBConfig,
1313 * and \c glXChooseFBConfigSGIX.
1315 * \param configs Array of pointers to possible configs. The elements of
1316 * this array that do not meet the criteria will be set to
1317 * NULL. The remaining elements will be sorted according to
1318 * the various visual / FBConfig selection rules.
1319 * \param num_configs Number of elements in the \c configs array.
1320 * \param attribList Attributes used select from \c configs. This array is
1321 * terminated by a \c None tag. The array can either take
1322 * the form expected by \c glXChooseVisual (where boolean
1323 * tags do not have a value) or by \c glXChooseFBConfig
1324 * (where every tag has a value).
1325 * \param fbconfig_style_tags Selects whether \c attribList is in
1326 * \c glXChooseVisual style or
1327 * \c glXChooseFBConfig style.
1328 * \returns The number of valid elements left in \c configs.
1330 * \sa glXChooseVisual, glXChooseFBConfig, glXChooseFBConfigSGIX
1333 choose_visual(__GLcontextModes
** configs
, int num_configs
,
1334 const int *attribList
, GLboolean fbconfig_style_tags
)
1336 __GLcontextModes test_config
;
1340 /* This is a fairly direct implementation of the selection method
1341 * described by GLX_SGIX_fbconfig. Start by culling out all the
1342 * configs that are not compatible with the selected parameter
1346 init_fbconfig_for_chooser(&test_config
, fbconfig_style_tags
);
1347 __glXInitializeVisualConfigFromTags(&test_config
, 512,
1348 (const INT32
*) attribList
,
1349 GL_TRUE
, fbconfig_style_tags
);
1352 for (i
= 0; i
< num_configs
; i
++) {
1353 if (fbconfigs_compatible(&test_config
, configs
[i
])) {
1354 configs
[base
] = configs
[i
];
1363 if (base
< num_configs
) {
1364 (void) memset(&configs
[base
], 0, sizeof(void *) * (num_configs
- base
));
1367 /* After the incompatible configs are removed, the resulting
1368 * list is sorted according to the rules set out in the various
1372 qsort(configs
, base
, sizeof(__GLcontextModes
*),
1373 (int (*)(const void *, const void *)) fbconfig_compare
);
1381 ** Return the visual that best matches the template. Return None if no
1382 ** visual matches the template.
1384 PUBLIC XVisualInfo
*
1385 glXChooseVisual(Display
* dpy
, int screen
, int *attribList
)
1387 XVisualInfo
*visualList
= NULL
;
1388 __GLXdisplayPrivate
*priv
;
1389 __GLXscreenConfigs
*psc
;
1390 __GLcontextModes test_config
;
1391 __GLcontextModes
*modes
;
1392 const __GLcontextModes
*best_config
= NULL
;
1395 ** Get a list of all visuals, return if list is empty
1397 if (GetGLXPrivScreenConfig(dpy
, screen
, &priv
, &psc
) != Success
) {
1403 ** Build a template from the defaults and the attribute list
1404 ** Free visual list and return if an unexpected token is encountered
1406 init_fbconfig_for_chooser(&test_config
, GL_FALSE
);
1407 __glXInitializeVisualConfigFromTags(&test_config
, 512,
1408 (const INT32
*) attribList
,
1412 ** Eliminate visuals that don't meet minimum requirements
1413 ** Compute a score for those that do
1414 ** Remember which visual, if any, got the highest score
1415 ** If no visual is acceptable, return None
1416 ** Otherwise, create an XVisualInfo list with just the selected X visual
1419 for (modes
= psc
->visuals
; modes
!= NULL
; modes
= modes
->next
) {
1420 if (fbconfigs_compatible(&test_config
, modes
)
1421 && ((best_config
== NULL
)
1424 ((const __GLcontextModes
* const *const) &modes
,
1425 &best_config
) < 0))) {
1426 XVisualInfo visualTemplate
;
1427 XVisualInfo
*newList
;
1430 visualTemplate
.screen
= screen
;
1431 visualTemplate
.visualid
= modes
->visualID
;
1432 newList
= XGetVisualInfo(dpy
, VisualScreenMask
| VisualIDMask
,
1433 &visualTemplate
, &i
);
1437 visualList
= newList
;
1438 best_config
= modes
;
1448 glXQueryExtensionsString(Display
* dpy
, int screen
)
1450 __GLXscreenConfigs
*psc
;
1451 __GLXdisplayPrivate
*priv
;
1453 if (GetGLXPrivScreenConfig(dpy
, screen
, &priv
, &psc
) != Success
) {
1457 if (!psc
->effectiveGLXexts
) {
1458 if (!psc
->serverGLXexts
) {
1459 psc
->serverGLXexts
=
1460 __glXQueryServerString(dpy
, priv
->majorOpcode
, screen
,
1464 __glXCalculateUsableExtensions(psc
,
1465 #ifdef GLX_DIRECT_RENDERING
1466 (psc
->driScreen
!= NULL
),
1470 priv
->minorVersion
);
1473 return psc
->effectiveGLXexts
;
1477 glXGetClientString(Display
* dpy
, int name
)
1483 return (__glXGLXClientVendorName
);
1485 return (__glXGLXClientVersion
);
1486 case GLX_EXTENSIONS
:
1487 return (__glXGetClientExtensions());
1494 glXQueryServerString(Display
* dpy
, int screen
, int name
)
1496 __GLXscreenConfigs
*psc
;
1497 __GLXdisplayPrivate
*priv
;
1501 if (GetGLXPrivScreenConfig(dpy
, screen
, &priv
, &psc
) != Success
) {
1507 str
= &priv
->serverGLXvendor
;
1510 str
= &priv
->serverGLXversion
;
1512 case GLX_EXTENSIONS
:
1513 str
= &psc
->serverGLXexts
;
1520 *str
= __glXQueryServerString(dpy
, priv
->majorOpcode
, screen
, name
);
1527 __glXClientInfo(Display
* dpy
, int opcode
)
1529 char *ext_str
= __glXGetClientGLExtensionString();
1530 int size
= strlen(ext_str
) + 1;
1533 xcb_connection_t
*c
= XGetXCBConnection(dpy
);
1534 xcb_glx_client_info(c
,
1535 GLX_MAJOR_VERSION
, GLX_MINOR_VERSION
, size
, ext_str
);
1537 xGLXClientInfoReq
*req
;
1539 /* Send the glXClientInfo request */
1541 GetReq(GLXClientInfo
, req
);
1542 req
->reqType
= opcode
;
1543 req
->glxCode
= X_GLXClientInfo
;
1544 req
->major
= GLX_MAJOR_VERSION
;
1545 req
->minor
= GLX_MINOR_VERSION
;
1547 req
->length
+= (size
+ 3) >> 2;
1548 req
->numbytes
= size
;
1549 Data(dpy
, ext_str
, size
);
1553 #endif /* USE_XCB */
1560 ** EXT_import_context
1564 glXGetCurrentDisplay(void)
1566 GLXContext gc
= __glXGetCurrentContext();
1569 return gc
->currentDpy
;
1573 GLX_ALIAS(Display
*, glXGetCurrentDisplayEXT
, (void), (),
1574 glXGetCurrentDisplay
)
1577 * Used internally by libGL to send \c xGLXQueryContextinfoExtReq requests
1580 * \param dpy Display where \c ctx was created.
1581 * \param ctx Context to query.
1582 * \returns \c Success on success. \c GLX_BAD_CONTEXT if \c ctx is invalid,
1583 * or zero if the request failed due to internal problems (i.e.,
1584 * unable to allocate temporary memory, etc.)
1587 * This function dynamically determines whether to use the EXT_import_context
1588 * version of the protocol or the GLX 1.3 version of the protocol.
1590 static int __glXQueryContextInfo(Display
* dpy
, GLXContext ctx
)
1592 __GLXdisplayPrivate
*priv
= __glXInitialize(dpy
);
1593 xGLXQueryContextReply reply
;
1599 return GLX_BAD_CONTEXT
;
1601 opcode
= __glXSetupForCommand(dpy
);
1606 /* Send the glXQueryContextInfoEXT request */
1609 if ((priv
->majorVersion
> 1) || (priv
->minorVersion
>= 3)) {
1610 xGLXQueryContextReq
*req
;
1612 GetReq(GLXQueryContext
, req
);
1614 req
->reqType
= opcode
;
1615 req
->glxCode
= X_GLXQueryContext
;
1616 req
->context
= (unsigned int) (ctx
->xid
);
1619 xGLXVendorPrivateReq
*vpreq
;
1620 xGLXQueryContextInfoEXTReq
*req
;
1622 GetReqExtra(GLXVendorPrivate
,
1623 sz_xGLXQueryContextInfoEXTReq
- sz_xGLXVendorPrivateReq
,
1625 req
= (xGLXQueryContextInfoEXTReq
*) vpreq
;
1626 req
->reqType
= opcode
;
1627 req
->glxCode
= X_GLXVendorPrivateWithReply
;
1628 req
->vendorCode
= X_GLXvop_QueryContextInfoEXT
;
1629 req
->context
= (unsigned int) (ctx
->xid
);
1632 _XReply(dpy
, (xReply
*) & reply
, 0, False
);
1634 numValues
= reply
.n
;
1637 else if (numValues
> __GLX_MAX_CONTEXT_PROPS
)
1640 int *propList
, *pProp
;
1643 nPropListBytes
= numValues
<< 3;
1644 propList
= (int *) Xmalloc(nPropListBytes
);
1645 if (NULL
== propList
) {
1651 _XRead(dpy
, (char *) propList
, nPropListBytes
);
1653 for (i
= 0; i
< numValues
; i
++) {
1655 case GLX_SHARE_CONTEXT_EXT
:
1656 ctx
->share_xid
= *pProp
++;
1658 case GLX_VISUAL_ID_EXT
:
1660 _gl_context_modes_find_visual(ctx
->psc
->visuals
, *pProp
++);
1663 ctx
->screen
= *pProp
++;
1665 case GLX_FBCONFIG_ID
:
1667 _gl_context_modes_find_fbconfig(ctx
->psc
->configs
,
1670 case GLX_RENDER_TYPE
:
1671 ctx
->renderType
= *pProp
++;
1678 Xfree((char *) propList
);
1688 glXQueryContext(Display
* dpy
, GLXContext ctx
, int attribute
, int *value
)
1692 /* get the information from the server if we don't have it already */
1693 #ifdef GLX_DIRECT_RENDERING
1694 if (!ctx
->driContext
&& (ctx
->mode
== NULL
)) {
1696 if (ctx
->mode
== NULL
) {
1698 retVal
= __glXQueryContextInfo(dpy
, ctx
);
1699 if (Success
!= retVal
)
1702 switch (attribute
) {
1703 case GLX_SHARE_CONTEXT_EXT
:
1704 *value
= (int) (ctx
->share_xid
);
1706 case GLX_VISUAL_ID_EXT
:
1707 *value
= ctx
->mode
? ctx
->mode
->visualID
: None
;
1710 *value
= (int) (ctx
->screen
);
1712 case GLX_FBCONFIG_ID
:
1713 *value
= ctx
->mode
? ctx
->mode
->fbconfigID
: None
;
1715 case GLX_RENDER_TYPE
:
1716 *value
= (int) (ctx
->renderType
);
1719 return GLX_BAD_ATTRIBUTE
;
1725 GLX_ALIAS(int, glXQueryContextInfoEXT
,
1726 (Display
* dpy
, GLXContext ctx
, int attribute
, int *value
),
1727 (dpy
, ctx
, attribute
, value
), glXQueryContext
)
1729 PUBLIC GLXContextID
glXGetContextIDEXT(const GLXContext ctx
)
1735 glXImportContextEXT(Display
* dpy
, GLXContextID contextID
)
1739 if (contextID
== None
) {
1742 if (__glXIsDirect(dpy
, contextID
)) {
1746 ctx
= AllocateGLXContext(dpy
);
1748 ctx
->xid
= contextID
;
1749 ctx
->imported
= GL_TRUE
;
1751 if (Success
!= __glXQueryContextInfo(dpy
, ctx
)) {
1752 __glXFreeContext(ctx
);
1760 glXFreeContextEXT(Display
* dpy
, GLXContext ctx
)
1762 DestroyContext(dpy
, ctx
);
1768 * GLX 1.3 functions - these are just stubs for now!
1771 PUBLIC GLXFBConfig
*
1772 glXChooseFBConfig(Display
* dpy
, int screen
,
1773 const int *attribList
, int *nitems
)
1775 __GLcontextModes
**config_list
;
1779 config_list
= (__GLcontextModes
**)
1780 glXGetFBConfigs(dpy
, screen
, &list_size
);
1782 if ((config_list
!= NULL
) && (list_size
> 0) && (attribList
!= NULL
)) {
1783 list_size
= choose_visual(config_list
, list_size
, attribList
, GL_TRUE
);
1784 if (list_size
== 0) {
1790 *nitems
= list_size
;
1791 return (GLXFBConfig
*) config_list
;
1796 glXCreateNewContext(Display
* dpy
, GLXFBConfig config
,
1797 int renderType
, GLXContext shareList
, Bool allowDirect
)
1799 const __GLcontextModes
*const fbconfig
=
1800 (const __GLcontextModes
*const) config
;
1802 return CreateContext(dpy
, NULL
, fbconfig
, shareList
,
1803 allowDirect
, X_GLXCreateNewContext
, renderType
,
1809 glXGetCurrentReadDrawable(void)
1811 GLXContext gc
= __glXGetCurrentContext();
1812 return gc
->currentReadable
;
1816 PUBLIC GLXFBConfig
*
1817 glXGetFBConfigs(Display
* dpy
, int screen
, int *nelements
)
1819 __GLXdisplayPrivate
*priv
= __glXInitialize(dpy
);
1820 __GLcontextModes
**config
= NULL
;
1824 if (priv
&& (priv
->screenConfigs
!= NULL
)
1825 && (screen
>= 0) && (screen
<= ScreenCount(dpy
))
1826 && (priv
->screenConfigs
[screen
].configs
!= NULL
)
1827 && (priv
->screenConfigs
[screen
].configs
->fbconfigID
1828 != (int) GLX_DONT_CARE
)) {
1829 unsigned num_configs
= 0;
1830 __GLcontextModes
*modes
;
1833 for (modes
= priv
->screenConfigs
[screen
].configs
; modes
!= NULL
;
1834 modes
= modes
->next
) {
1835 if (modes
->fbconfigID
!= (int) GLX_DONT_CARE
) {
1840 config
= (__GLcontextModes
**) Xmalloc(sizeof(__GLcontextModes
*)
1842 if (config
!= NULL
) {
1843 *nelements
= num_configs
;
1845 for (modes
= priv
->screenConfigs
[screen
].configs
; modes
!= NULL
;
1846 modes
= modes
->next
) {
1847 if (modes
->fbconfigID
!= (int) GLX_DONT_CARE
) {
1854 return (GLXFBConfig
*) config
;
1859 glXGetFBConfigAttrib(Display
* dpy
, GLXFBConfig config
,
1860 int attribute
, int *value
)
1862 __GLcontextModes
*const modes
= ValidateGLXFBConfig(dpy
, config
);
1864 return (modes
!= NULL
)
1865 ? _gl_get_context_mode_data(modes
, attribute
, value
)
1870 PUBLIC XVisualInfo
*
1871 glXGetVisualFromFBConfig(Display
* dpy
, GLXFBConfig config
)
1873 XVisualInfo visualTemplate
;
1874 __GLcontextModes
*fbconfig
= (__GLcontextModes
*) config
;
1878 ** Get a list of all visuals, return if list is empty
1880 visualTemplate
.visualid
= fbconfig
->visualID
;
1881 return XGetVisualInfo(dpy
, VisualIDMask
, &visualTemplate
, &count
);
1886 ** GLX_SGI_swap_control
1889 __glXSwapIntervalSGI(int interval
)
1891 xGLXVendorPrivateReq
*req
;
1892 GLXContext gc
= __glXGetCurrentContext();
1893 __GLXscreenConfigs
*psc
;
1895 CARD32
*interval_ptr
;
1899 return GLX_BAD_CONTEXT
;
1902 if (interval
<= 0) {
1903 return GLX_BAD_VALUE
;
1906 #ifdef __DRI_SWAP_CONTROL
1907 if (gc
->driContext
) {
1908 __GLXscreenConfigs
* const psc
= GetGLXScreenConfigs( gc
->currentDpy
,
1910 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(gc
->currentDpy
,
1911 gc
->currentDrawable
,
1913 if (psc
->swapControl
!= NULL
&& pdraw
!= NULL
) {
1914 psc
->swapControl
->setSwapInterval(pdraw
->driDrawable
, interval
);
1917 else if (pdraw
== NULL
) {
1918 return GLX_BAD_CONTEXT
;
1922 psc
= GetGLXScreenConfigs( gc
->currentDpy
, gc
->screen
);
1924 if (gc
->driContext
&& psc
->driScreen
&& psc
->driScreen
->setSwapInterval
) {
1925 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(gc
->currentDpy
,
1926 gc
->currentDrawable
,
1928 psc
->driScreen
->setSwapInterval(pdraw
, interval
);
1932 dpy
= gc
->currentDpy
;
1933 opcode
= __glXSetupForCommand(dpy
);
1938 /* Send the glXSwapIntervalSGI request */
1940 GetReqExtra(GLXVendorPrivate
, sizeof(CARD32
), req
);
1941 req
->reqType
= opcode
;
1942 req
->glxCode
= X_GLXVendorPrivate
;
1943 req
->vendorCode
= X_GLXvop_SwapIntervalSGI
;
1944 req
->contextTag
= gc
->currentContextTag
;
1946 interval_ptr
= (CARD32
*) (req
+ 1);
1947 *interval_ptr
= interval
;
1958 ** GLX_MESA_swap_control
1961 __glXSwapIntervalMESA(unsigned int interval
)
1963 GLXContext gc
= __glXGetCurrentContext();
1965 #ifdef __DRI_SWAP_CONTROL
1966 if (gc
!= NULL
&& gc
->driContext
) {
1967 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(gc
->currentDpy
,
1970 if ((psc
!= NULL
) && (psc
->driScreen
!= NULL
)) {
1971 __GLXDRIdrawable
*pdraw
=
1972 GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
, NULL
);
1973 if (psc
->swapControl
!= NULL
&& pdraw
!= NULL
) {
1974 psc
->swapControl
->setSwapInterval(pdraw
->driDrawable
, interval
);
1981 if (gc
!= NULL
&& gc
->driContext
) {
1982 __GLXscreenConfigs
*psc
;
1984 psc
= GetGLXScreenConfigs( gc
->currentDpy
, gc
->screen
);
1985 if (psc
->driScreen
&& psc
->driScreen
->setSwapInterval
) {
1986 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(gc
->currentDpy
,
1987 gc
->currentDrawable
, NULL
);
1988 psc
->driScreen
->setSwapInterval(pdraw
, interval
);
1993 return GLX_BAD_CONTEXT
;
1998 __glXGetSwapIntervalMESA(void)
2000 #ifdef __DRI_SWAP_CONTROL
2001 GLXContext gc
= __glXGetCurrentContext();
2003 if (gc
!= NULL
&& gc
->driContext
) {
2004 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(gc
->currentDpy
,
2007 if ((psc
!= NULL
) && (psc
->driScreen
!= NULL
)) {
2008 __GLXDRIdrawable
*pdraw
=
2009 GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
, NULL
);
2010 if (psc
->swapControl
!= NULL
&& pdraw
!= NULL
) {
2011 return psc
->swapControl
->getSwapInterval(pdraw
->driDrawable
);
2016 if (gc
!= NULL
&& gc
->driContext
) {
2017 __GLXscreenConfigs
*psc
;
2019 psc
= GetGLXScreenConfigs( gc
->currentDpy
, gc
->screen
);
2020 if (psc
->driScreen
&& psc
->driScreen
->getSwapInterval
) {
2021 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(gc
->currentDpy
,
2022 gc
->currentDrawable
, NULL
);
2023 return psc
->driScreen
->getSwapInterval(pdraw
);
2032 ** GLX_MESA_swap_frame_usage
2036 __glXBeginFrameTrackingMESA(Display
* dpy
, GLXDrawable drawable
)
2038 int status
= GLX_BAD_CONTEXT
;
2039 #ifdef __DRI_FRAME_TRACKING
2041 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
, &screen
);
2042 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, screen
);
2044 if (pdraw
!= NULL
&& psc
->frameTracking
!= NULL
)
2045 status
= psc
->frameTracking
->frameTracking(pdraw
->driDrawable
, GL_TRUE
);
2055 __glXEndFrameTrackingMESA(Display
* dpy
, GLXDrawable drawable
)
2057 int status
= GLX_BAD_CONTEXT
;
2058 #ifdef __DRI_FRAME_TRACKING
2060 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
, &screen
);
2061 __GLXscreenConfigs
*psc
= GetGLXScreenConfigs(dpy
, screen
);
2063 if (pdraw
!= NULL
&& psc
->frameTracking
!= NULL
)
2064 status
= psc
->frameTracking
->frameTracking(pdraw
->driDrawable
,
2075 __glXGetFrameUsageMESA(Display
* dpy
, GLXDrawable drawable
, GLfloat
* usage
)
2077 int status
= GLX_BAD_CONTEXT
;
2078 #ifdef __DRI_FRAME_TRACKING
2080 __GLXDRIdrawable
*const pdraw
= GetGLXDRIDrawable(dpy
, drawable
, &screen
);
2081 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, screen
);
2083 if (pdraw
!= NULL
&& psc
->frameTracking
!= NULL
) {
2084 int64_t sbc
, missedFrames
;
2085 float lastMissedUsage
;
2087 status
= psc
->frameTracking
->queryFrameTracking(pdraw
->driDrawable
,
2103 __glXQueryFrameTrackingMESA(Display
* dpy
, GLXDrawable drawable
,
2104 int64_t * sbc
, int64_t * missedFrames
,
2105 GLfloat
* lastMissedUsage
)
2107 int status
= GLX_BAD_CONTEXT
;
2108 #ifdef __DRI_FRAME_TRACKING
2110 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
, &screen
);
2111 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, screen
);
2113 if (pdraw
!= NULL
&& psc
->frameTracking
!= NULL
) {
2116 status
= psc
->frameTracking
->queryFrameTracking(pdraw
->driDrawable
,
2125 (void) missedFrames
;
2126 (void) lastMissedUsage
;
2133 ** GLX_SGI_video_sync
2136 __glXGetVideoSyncSGI(unsigned int *count
)
2138 int64_t ust
, msc
, sbc
;
2140 GLXContext gc
= __glXGetCurrentContext();
2141 __GLXscreenConfigs
*psc
;
2142 __GLXDRIdrawable
*pdraw
;
2144 if (!gc
|| !gc
->driContext
)
2145 return GLX_BAD_CONTEXT
;
2147 psc
= GetGLXScreenConfigs(gc
->currentDpy
, gc
->screen
);
2148 pdraw
= GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
, NULL
);
2150 /* FIXME: Looking at the GLX_SGI_video_sync spec in the extension registry,
2151 * FIXME: there should be a GLX encoding for this call. I can find no
2152 * FIXME: documentation for the GLX encoding.
2154 #ifdef __DRI_MEDIA_STREAM_COUNTER
2155 if ( psc
->msc
&& psc
->driScreen
) {
2156 ret
= (*psc
->msc
->getDrawableMSC
)(psc
->__driScreen
,
2157 pdraw
->driDrawable
, &msc
);
2158 *count
= (unsigned) msc
;
2160 return (ret
== 0) ? 0 : GLX_BAD_CONTEXT
;
2163 if (psc
->driScreen
&& psc
->driScreen
->getDrawableMSC
) {
2164 ret
= psc
->driScreen
->getDrawableMSC(psc
, pdraw
, &ust
, &msc
, &sbc
);
2165 *count
= (unsigned) msc
;
2166 return (ret
== True
) ? 0 : GLX_BAD_CONTEXT
;
2169 return GLX_BAD_CONTEXT
;
2173 __glXWaitVideoSyncSGI(int divisor
, int remainder
, unsigned int *count
)
2175 GLXContext gc
= __glXGetCurrentContext();
2176 __GLXscreenConfigs
*psc
;
2177 __GLXDRIdrawable
*pdraw
;
2178 int64_t ust
, msc
, sbc
;
2181 if (divisor
<= 0 || remainder
< 0)
2182 return GLX_BAD_VALUE
;
2184 if (!gc
|| !gc
->driContext
)
2185 return GLX_BAD_CONTEXT
;
2187 psc
= GetGLXScreenConfigs( gc
->currentDpy
, gc
->screen
);
2188 pdraw
= GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
, NULL
);
2190 #ifdef __DRI_MEDIA_STREAM_COUNTER
2191 if (psc
->msc
!= NULL
&& psc
->driScreen
) {
2192 ret
= (*psc
->msc
->waitForMSC
)(pdraw
->driDrawable
, 0,
2193 divisor
, remainder
, &msc
, &sbc
);
2194 *count
= (unsigned) msc
;
2195 return (ret
== 0) ? 0 : GLX_BAD_CONTEXT
;
2198 if (psc
->driScreen
&& psc
->driScreen
->waitForMSC
) {
2199 ret
= psc
->driScreen
->waitForMSC(pdraw
, 0, divisor
, remainder
, &ust
, &msc
,
2201 *count
= (unsigned) msc
;
2202 return (ret
== True
) ? 0 : GLX_BAD_CONTEXT
;
2205 return GLX_BAD_CONTEXT
;
2210 ** GLX_SGIX_fbconfig
2211 ** Many of these functions are aliased to GLX 1.3 entry points in the
2212 ** GLX_functions table.
2216 GLX_ALIAS(int, glXGetFBConfigAttribSGIX
,
2217 (Display
* dpy
, GLXFBConfigSGIX config
, int attribute
, int *value
),
2218 (dpy
, config
, attribute
, value
), glXGetFBConfigAttrib
)
2220 PUBLIC
GLX_ALIAS(GLXFBConfigSGIX
*, glXChooseFBConfigSGIX
,
2221 (Display
* dpy
, int screen
, int *attrib_list
,
2222 int *nelements
), (dpy
, screen
, attrib_list
, nelements
),
2225 PUBLIC
GLX_ALIAS(XVisualInfo
*, glXGetVisualFromFBConfigSGIX
,
2226 (Display
* dpy
, GLXFBConfigSGIX config
),
2227 (dpy
, config
), glXGetVisualFromFBConfig
)
2230 glXCreateGLXPixmapWithConfigSGIX(Display
* dpy
,
2231 GLXFBConfigSGIX config
,
2234 xGLXVendorPrivateWithReplyReq
*vpreq
;
2235 xGLXCreateGLXPixmapWithConfigSGIXReq
*req
;
2236 GLXPixmap xid
= None
;
2238 const __GLcontextModes
*const fbconfig
= (__GLcontextModes
*) config
;
2239 __GLXscreenConfigs
*psc
;
2242 if ((dpy
== NULL
) || (config
== NULL
)) {
2246 psc
= GetGLXScreenConfigs(dpy
, fbconfig
->screen
);
2248 && __glXExtensionBitIsEnabled(psc
, SGIX_fbconfig_bit
)) {
2249 opcode
= __glXSetupForCommand(dpy
);
2254 /* Send the glXCreateGLXPixmapWithConfigSGIX request */
2256 GetReqExtra(GLXVendorPrivateWithReply
,
2257 sz_xGLXCreateGLXPixmapWithConfigSGIXReq
-
2258 sz_xGLXVendorPrivateWithReplyReq
, vpreq
);
2259 req
= (xGLXCreateGLXPixmapWithConfigSGIXReq
*) vpreq
;
2260 req
->reqType
= opcode
;
2261 req
->glxCode
= X_GLXVendorPrivateWithReply
;
2262 req
->vendorCode
= X_GLXvop_CreateGLXPixmapWithConfigSGIX
;
2263 req
->screen
= fbconfig
->screen
;
2264 req
->fbconfig
= fbconfig
->fbconfigID
;
2265 req
->pixmap
= pixmap
;
2266 req
->glxpixmap
= xid
= XAllocID(dpy
);
2275 glXCreateContextWithConfigSGIX(Display
* dpy
,
2276 GLXFBConfigSGIX config
, int renderType
,
2277 GLXContext shareList
, Bool allowDirect
)
2279 GLXContext gc
= NULL
;
2280 const __GLcontextModes
*const fbconfig
= (__GLcontextModes
*) config
;
2281 __GLXscreenConfigs
*psc
;
2284 if ((dpy
== NULL
) || (config
== NULL
)) {
2288 psc
= GetGLXScreenConfigs(dpy
, fbconfig
->screen
);
2290 && __glXExtensionBitIsEnabled(psc
, SGIX_fbconfig_bit
)) {
2291 gc
= CreateContext(dpy
, NULL
, (__GLcontextModes
*) config
, shareList
,
2293 X_GLXvop_CreateContextWithConfigSGIX
, renderType
,
2301 PUBLIC GLXFBConfigSGIX
2302 glXGetFBConfigFromVisualSGIX(Display
* dpy
, XVisualInfo
* vis
)
2304 __GLXdisplayPrivate
*priv
;
2305 __GLXscreenConfigs
*psc
= NULL
;
2307 if ((GetGLXPrivScreenConfig(dpy
, vis
->screen
, &priv
, &psc
) != Success
)
2308 && __glXExtensionBitIsEnabled(psc
, SGIX_fbconfig_bit
)
2309 && (psc
->configs
->fbconfigID
!= (int) GLX_DONT_CARE
)) {
2310 return (GLXFBConfigSGIX
) _gl_context_modes_find_visual(psc
->configs
,
2319 ** GLX_SGIX_swap_group
2322 __glXJoinSwapGroupSGIX(Display
* dpy
, GLXDrawable drawable
,
2332 ** GLX_SGIX_swap_barrier
2335 __glXBindSwapBarrierSGIX(Display
* dpy
, GLXDrawable drawable
, int barrier
)
2343 __glXQueryMaxSwapBarriersSGIX(Display
* dpy
, int screen
, int *max
)
2353 ** GLX_OML_sync_control
2356 __glXGetSyncValuesOML(Display
* dpy
, GLXDrawable drawable
,
2357 int64_t * ust
, int64_t * msc
, int64_t * sbc
)
2359 __GLXdisplayPrivate
* const priv
= __glXInitialize(dpy
);
2361 __GLXDRIdrawable
*pdraw
;
2362 __GLXscreenConfigs
*psc
;
2367 pdraw
= GetGLXDRIDrawable(dpy
, drawable
, &i
);
2368 psc
= &priv
->screenConfigs
[i
];
2370 #if defined(__DRI_SWAP_BUFFER_COUNTER) && defined(__DRI_MEDIA_STREAM_COUNTER)
2371 if (pdraw
&& psc
->sbc
&& psc
->sbc
)
2372 return ( (pdraw
&& psc
->sbc
&& psc
->msc
)
2373 && ((*psc
->msc
->getMSC
)(psc
->driScreen
, msc
) == 0)
2374 && ((*psc
->sbc
->getSBC
)(pdraw
->driDrawable
, sbc
) == 0)
2375 && (__glXGetUST(ust
) == 0) );
2377 if (pdraw
&& psc
&& psc
->driScreen
&& psc
->driScreen
->getDrawableMSC
) {
2378 ret
= psc
->driScreen
->getDrawableMSC(psc
, pdraw
, ust
, msc
, sbc
);
2385 #ifdef GLX_DIRECT_RENDERING
2387 __driGetMscRateOML(__DRIdrawable
* draw
,
2388 int32_t * numerator
, int32_t * denominator
, void *private)
2391 __GLXscreenConfigs
*psc
;
2392 XF86VidModeModeLine mode_line
;
2395 __GLXDRIdrawable
*glxDraw
= private;
2400 if (XF86VidModeQueryVersion(psc
->dpy
, &i
, &i
) &&
2401 XF86VidModeGetModeLine(psc
->dpy
, psc
->scr
, &dot_clock
, &mode_line
)) {
2402 unsigned n
= dot_clock
* 1000;
2403 unsigned d
= mode_line
.vtotal
* mode_line
.htotal
;
2405 # define V_INTERLACE 0x010
2406 # define V_DBLSCAN 0x020
2408 if (mode_line
.flags
& V_INTERLACE
)
2410 else if (mode_line
.flags
& V_DBLSCAN
)
2413 /* The OML_sync_control spec requires that if the refresh rate is a
2414 * whole number, that the returned numerator be equal to the refresh
2415 * rate and the denominator be 1.
2423 static const unsigned f
[] = { 13, 11, 7, 5, 3, 2, 0 };
2425 /* This is a poor man's way to reduce a fraction. It's far from
2426 * perfect, but it will work well enough for this situation.
2429 for (i
= 0; f
[i
] != 0; i
++) {
2430 while (n
% f
[i
] == 0 && d
% f
[i
] == 0) {
2456 * Determine the refresh rate of the specified drawable and display.
2458 * \param dpy Display whose refresh rate is to be determined.
2459 * \param drawable Drawable whose refresh rate is to be determined.
2460 * \param numerator Numerator of the refresh rate.
2461 * \param demoninator Denominator of the refresh rate.
2462 * \return If the refresh rate for the specified display and drawable could
2463 * be calculated, True is returned. Otherwise False is returned.
2465 * \note This function is implemented entirely client-side. A lot of other
2466 * functionality is required to export GLX_OML_sync_control, so on
2467 * XFree86 this function can be called for direct-rendering contexts
2468 * when GLX_OML_sync_control appears in the client extension string.
2472 __glXGetMscRateOML(Display
* dpy
, GLXDrawable drawable
,
2473 int32_t * numerator
, int32_t * denominator
)
2475 #if defined( GLX_DIRECT_RENDERING ) && defined( XF86VIDMODE )
2476 __GLXDRIdrawable
*draw
= GetGLXDRIDrawable(dpy
, drawable
, NULL
);
2481 return __driGetMscRateOML(draw
->driDrawable
, numerator
, denominator
, draw
);
2493 __glXSwapBuffersMscOML(Display
* dpy
, GLXDrawable drawable
,
2494 int64_t target_msc
, int64_t divisor
, int64_t remainder
)
2496 GLXContext gc
= __glXGetCurrentContext();
2498 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
, &screen
);
2499 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, screen
);
2501 if (!pdraw
|| !gc
->driContext
) /* no GLX for this */
2504 /* The OML_sync_control spec says these should "generate a GLX_BAD_VALUE
2505 * error", but it also says "It [glXSwapBuffersMscOML] will return a value
2506 * of -1 if the function failed because of errors detected in the input
2509 if (divisor
< 0 || remainder
< 0 || target_msc
< 0)
2511 if (divisor
> 0 && remainder
>= divisor
)
2514 #ifdef __DRI_SWAP_BUFFER_COUNTER
2515 if (psc
->counters
!= NULL
)
2516 return (*psc
->sbc
->swapBuffersMSC
)(pdraw
->driDrawable
, target_msc
,
2517 divisor
, remainder
);
2520 #ifdef GLX_DIRECT_RENDERING
2521 if (psc
->driScreen
&& psc
->driScreen
->swapBuffers
)
2522 return (*psc
->driScreen
->swapBuffers
)(pdraw
, target_msc
, divisor
,
2531 __glXWaitForMscOML(Display
* dpy
, GLXDrawable drawable
,
2532 int64_t target_msc
, int64_t divisor
,
2533 int64_t remainder
, int64_t * ust
,
2534 int64_t * msc
, int64_t * sbc
)
2537 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
, &screen
);
2538 __GLXscreenConfigs
* const psc
= GetGLXScreenConfigs( dpy
, screen
);
2541 fprintf(stderr
, "waitmsc: %lld, %lld, %lld\n", target_msc
, divisor
,
2544 /* The OML_sync_control spec says these should "generate a GLX_BAD_VALUE
2545 * error", but the return type in the spec is Bool.
2547 if (divisor
< 0 || remainder
< 0 || target_msc
< 0)
2549 if (divisor
> 0 && remainder
>= divisor
)
2552 #ifdef __DRI_MEDIA_STREAM_COUNTER
2553 if (pdraw
!= NULL
&& psc
->msc
!= NULL
) {
2554 fprintf(stderr
, "dri1 msc\n");
2555 ret
= (*psc
->msc
->waitForMSC
) (pdraw
->driDrawable
, target_msc
,
2556 divisor
, remainder
, msc
, sbc
);
2558 /* __glXGetUST returns zero on success and non-zero on failure.
2559 * This function returns True on success and False on failure.
2561 return ((ret
== 0) && (__glXGetUST(ust
) == 0));
2564 if (pdraw
&& psc
->driScreen
&& psc
->driScreen
->waitForMSC
) {
2565 ret
= psc
->driScreen
->waitForMSC(pdraw
, target_msc
, divisor
, remainder
,
2570 fprintf(stderr
, "no drawable??\n");
2576 __glXWaitForSbcOML(Display
* dpy
, GLXDrawable drawable
,
2577 int64_t target_sbc
, int64_t * ust
,
2578 int64_t * msc
, int64_t * sbc
)
2581 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
, &screen
);
2582 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, screen
);
2585 /* The OML_sync_control spec says this should "generate a GLX_BAD_VALUE
2586 * error", but the return type in the spec is Bool.
2590 #ifdef __DRI_SWAP_BUFFER_COUNTER
2591 if (pdraw
!= NULL
&& psc
->sbc
!= NULL
) {
2593 (*psc
->sbc
->waitForSBC
) (pdraw
->driDrawable
, target_sbc
, msc
, sbc
);
2595 /* __glXGetUST returns zero on success and non-zero on failure.
2596 * This function returns True on success and False on failure.
2598 return ((ret
== 0) && (__glXGetUST(ust
) == 0));
2601 if (pdraw
&& psc
->driScreen
&& psc
->driScreen
->waitForMSC
) {
2602 ret
= psc
->driScreen
->waitForSBC(pdraw
, target_sbc
, ust
, msc
, sbc
);
2610 * GLX_MESA_allocate_memory
2615 glXAllocateMemoryMESA(Display
* dpy
, int scrn
,
2616 size_t size
, float readFreq
,
2617 float writeFreq
, float priority
)
2619 #ifdef __DRI_ALLOCATE
2620 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, scrn
);
2622 if (psc
&& psc
->allocate
)
2623 return (*psc
->allocate
->allocateMemory
) (psc
->__driScreen
, size
,
2624 readFreq
, writeFreq
, priority
);
2633 #endif /* __DRI_ALLOCATE */
2640 glXFreeMemoryMESA(Display
* dpy
, int scrn
, void *pointer
)
2642 #ifdef __DRI_ALLOCATE
2643 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, scrn
);
2645 if (psc
&& psc
->allocate
)
2646 (*psc
->allocate
->freeMemory
) (psc
->__driScreen
, pointer
);
2652 #endif /* __DRI_ALLOCATE */
2657 glXGetMemoryOffsetMESA(Display
* dpy
, int scrn
, const void *pointer
)
2659 #ifdef __DRI_ALLOCATE
2660 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, scrn
);
2662 if (psc
&& psc
->allocate
)
2663 return (*psc
->allocate
->memoryOffset
) (psc
->__driScreen
, pointer
);
2669 #endif /* GLX_DIRECT_RENDERING */
2678 * Mesa extension stubs. These will help reduce portability problems.
2683 * Release all buffers associated with the specified GLX drawable.
2686 * This function was intended for stand-alone Mesa. The issue there is that
2687 * the library doesn't get any notification when a window is closed. In
2688 * DRI there is a similar but slightly different issue. When GLX 1.3 is
2689 * supported, there are 3 different functions to destroy a drawable. It
2690 * should be possible to create GLX protocol (or have it determine which
2691 * protocol to use based on the type of the drawable) to have one function
2692 * do the work of 3. For the direct-rendering case, this function could
2693 * just call the driver's \c __DRIdrawableRec::destroyDrawable function.
2694 * This would reduce the frequency with which \c __driGarbageCollectDrawables
2695 * would need to be used. This really should be done as part of the new DRI
2698 * \sa http://oss.sgi.com/projects/ogl-sample/registry/MESA/release_buffers.txt
2699 * __driGarbageCollectDrawables
2700 * glXDestroyGLXPixmap
2701 * glXDestroyPbuffer glXDestroyPixmap glXDestroyWindow
2702 * glXDestroyGLXPbufferSGIX glXDestroyGLXVideoSourceSGIX
2705 __glXReleaseBuffersMESA(Display
* dpy
, GLXDrawable d
)
2714 glXCreateGLXPixmapMESA(Display
* dpy
, XVisualInfo
* visual
,
2715 Pixmap pixmap
, Colormap cmap
)
2728 * GLX_MESA_copy_sub_buffer
2730 #define X_GLXvop_CopySubBufferMESA 5154 /* temporary */
2732 __glXCopySubBufferMESA(Display
* dpy
, GLXDrawable drawable
,
2733 int x
, int y
, int width
, int height
)
2735 xGLXVendorPrivateReq
*req
;
2738 CARD32
*drawable_ptr
;
2739 INT32
*x_ptr
, *y_ptr
, *w_ptr
, *h_ptr
;
2742 #ifdef __DRI_COPY_SUB_BUFFER
2744 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
, &screen
);
2745 if (pdraw
!= NULL
) {
2746 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, screen
);
2747 if (psc
->driScreen
->copySubBuffer
!= NULL
) {
2749 (*psc
->driScreen
->copySubBuffer
) (pdraw
, x
, y
, width
, height
);
2756 opcode
= __glXSetupForCommand(dpy
);
2761 ** The calling thread may or may not have a current context. If it
2762 ** does, send the context tag so the server can do a flush.
2764 gc
= __glXGetCurrentContext();
2765 if ((gc
!= NULL
) && (dpy
== gc
->currentDpy
) &&
2766 ((drawable
== gc
->currentDrawable
) ||
2767 (drawable
== gc
->currentReadable
))) {
2768 tag
= gc
->currentContextTag
;
2775 GetReqExtra(GLXVendorPrivate
, sizeof(CARD32
) + sizeof(INT32
) * 4, req
);
2776 req
->reqType
= opcode
;
2777 req
->glxCode
= X_GLXVendorPrivate
;
2778 req
->vendorCode
= X_GLXvop_CopySubBufferMESA
;
2779 req
->contextTag
= tag
;
2781 drawable_ptr
= (CARD32
*) (req
+ 1);
2782 x_ptr
= (INT32
*) (drawable_ptr
+ 1);
2783 y_ptr
= (INT32
*) (drawable_ptr
+ 2);
2784 w_ptr
= (INT32
*) (drawable_ptr
+ 3);
2785 h_ptr
= (INT32
*) (drawable_ptr
+ 4);
2787 *drawable_ptr
= drawable
;
2799 * GLX_EXT_texture_from_pixmap
2803 __glXBindTexImageEXT(Display
* dpy
,
2804 GLXDrawable drawable
, int buffer
, const int *attrib_list
)
2806 xGLXVendorPrivateReq
*req
;
2807 GLXContext gc
= __glXGetCurrentContext();
2808 CARD32
*drawable_ptr
;
2810 CARD32
*num_attrib_ptr
;
2820 while (attrib_list
[i
* 2] != None
)
2824 #ifdef GLX_DIRECT_RENDERING
2825 if (gc
->driContext
) {
2826 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
, NULL
);
2828 if (pdraw
!= NULL
) {
2829 if (pdraw
->psc
->texBuffer
->base
.version
>= 2 &&
2830 pdraw
->psc
->texBuffer
->setTexBuffer2
!= NULL
) {
2831 (*pdraw
->psc
->texBuffer
->setTexBuffer2
) (gc
->__driContext
,
2832 pdraw
->textureTarget
,
2833 pdraw
->textureFormat
,
2834 pdraw
->driDrawable
);
2837 (*pdraw
->psc
->texBuffer
->setTexBuffer
) (gc
->__driContext
,
2838 pdraw
->textureTarget
,
2839 pdraw
->driDrawable
);
2846 opcode
= __glXSetupForCommand(dpy
);
2851 GetReqExtra(GLXVendorPrivate
, 12 + 8 * i
, req
);
2852 req
->reqType
= opcode
;
2853 req
->glxCode
= X_GLXVendorPrivate
;
2854 req
->vendorCode
= X_GLXvop_BindTexImageEXT
;
2855 req
->contextTag
= gc
->currentContextTag
;
2857 drawable_ptr
= (CARD32
*) (req
+ 1);
2858 buffer_ptr
= (INT32
*) (drawable_ptr
+ 1);
2859 num_attrib_ptr
= (CARD32
*) (buffer_ptr
+ 1);
2860 attrib_ptr
= (CARD32
*) (num_attrib_ptr
+ 1);
2862 *drawable_ptr
= drawable
;
2863 *buffer_ptr
= buffer
;
2864 *num_attrib_ptr
= (CARD32
) i
;
2868 while (attrib_list
[i
* 2] != None
) {
2869 *attrib_ptr
++ = (CARD32
) attrib_list
[i
* 2 + 0];
2870 *attrib_ptr
++ = (CARD32
) attrib_list
[i
* 2 + 1];
2880 __glXReleaseTexImageEXT(Display
* dpy
, GLXDrawable drawable
, int buffer
)
2882 xGLXVendorPrivateReq
*req
;
2883 GLXContext gc
= __glXGetCurrentContext();
2884 CARD32
*drawable_ptr
;
2888 if ((gc
== NULL
) || GC_IS_DIRECT(gc
))
2891 opcode
= __glXSetupForCommand(dpy
);
2896 GetReqExtra(GLXVendorPrivate
, sizeof(CARD32
) + sizeof(INT32
), req
);
2897 req
->reqType
= opcode
;
2898 req
->glxCode
= X_GLXVendorPrivate
;
2899 req
->vendorCode
= X_GLXvop_ReleaseTexImageEXT
;
2900 req
->contextTag
= gc
->currentContextTag
;
2902 drawable_ptr
= (CARD32
*) (req
+ 1);
2903 buffer_ptr
= (INT32
*) (drawable_ptr
+ 1);
2905 *drawable_ptr
= drawable
;
2906 *buffer_ptr
= buffer
;
2915 * \c strdup is actually not a standard ANSI C or POSIX routine.
2916 * Irix will not define it if ANSI mode is in effect.
2921 __glXstrdup(const char *str
)
2924 copy
= (char *) Xmalloc(strlen(str
) + 1);
2932 ** glXGetProcAddress support
2935 struct name_address_pair
2941 #define GLX_FUNCTION(f) { # f, (GLvoid *) f }
2942 #define GLX_FUNCTION2(n,f) { # n, (GLvoid *) f }
2944 static const struct name_address_pair GLX_functions
[] = {
2945 /*** GLX_VERSION_1_0 ***/
2946 GLX_FUNCTION(glXChooseVisual
),
2947 GLX_FUNCTION(glXCopyContext
),
2948 GLX_FUNCTION(glXCreateContext
),
2949 GLX_FUNCTION(glXCreateGLXPixmap
),
2950 GLX_FUNCTION(glXDestroyContext
),
2951 GLX_FUNCTION(glXDestroyGLXPixmap
),
2952 GLX_FUNCTION(glXGetConfig
),
2953 GLX_FUNCTION(glXGetCurrentContext
),
2954 GLX_FUNCTION(glXGetCurrentDrawable
),
2955 GLX_FUNCTION(glXIsDirect
),
2956 GLX_FUNCTION(glXMakeCurrent
),
2957 GLX_FUNCTION(glXQueryExtension
),
2958 GLX_FUNCTION(glXQueryVersion
),
2959 GLX_FUNCTION(glXSwapBuffers
),
2960 GLX_FUNCTION(glXUseXFont
),
2961 GLX_FUNCTION(glXWaitGL
),
2962 GLX_FUNCTION(glXWaitX
),
2964 /*** GLX_VERSION_1_1 ***/
2965 GLX_FUNCTION(glXGetClientString
),
2966 GLX_FUNCTION(glXQueryExtensionsString
),
2967 GLX_FUNCTION(glXQueryServerString
),
2969 /*** GLX_VERSION_1_2 ***/
2970 GLX_FUNCTION(glXGetCurrentDisplay
),
2972 /*** GLX_VERSION_1_3 ***/
2973 GLX_FUNCTION(glXChooseFBConfig
),
2974 GLX_FUNCTION(glXCreateNewContext
),
2975 GLX_FUNCTION(glXCreatePbuffer
),
2976 GLX_FUNCTION(glXCreatePixmap
),
2977 GLX_FUNCTION(glXCreateWindow
),
2978 GLX_FUNCTION(glXDestroyPbuffer
),
2979 GLX_FUNCTION(glXDestroyPixmap
),
2980 GLX_FUNCTION(glXDestroyWindow
),
2981 GLX_FUNCTION(glXGetCurrentReadDrawable
),
2982 GLX_FUNCTION(glXGetFBConfigAttrib
),
2983 GLX_FUNCTION(glXGetFBConfigs
),
2984 GLX_FUNCTION(glXGetSelectedEvent
),
2985 GLX_FUNCTION(glXGetVisualFromFBConfig
),
2986 GLX_FUNCTION(glXMakeContextCurrent
),
2987 GLX_FUNCTION(glXQueryContext
),
2988 GLX_FUNCTION(glXQueryDrawable
),
2989 GLX_FUNCTION(glXSelectEvent
),
2991 /*** GLX_SGI_swap_control ***/
2992 GLX_FUNCTION2(glXSwapIntervalSGI
, __glXSwapIntervalSGI
),
2994 /*** GLX_SGI_video_sync ***/
2995 GLX_FUNCTION2(glXGetVideoSyncSGI
, __glXGetVideoSyncSGI
),
2996 GLX_FUNCTION2(glXWaitVideoSyncSGI
, __glXWaitVideoSyncSGI
),
2998 /*** GLX_SGI_make_current_read ***/
2999 GLX_FUNCTION2(glXMakeCurrentReadSGI
, glXMakeContextCurrent
),
3000 GLX_FUNCTION2(glXGetCurrentReadDrawableSGI
, glXGetCurrentReadDrawable
),
3002 /*** GLX_EXT_import_context ***/
3003 GLX_FUNCTION(glXFreeContextEXT
),
3004 GLX_FUNCTION(glXGetContextIDEXT
),
3005 GLX_FUNCTION2(glXGetCurrentDisplayEXT
, glXGetCurrentDisplay
),
3006 GLX_FUNCTION(glXImportContextEXT
),
3007 GLX_FUNCTION2(glXQueryContextInfoEXT
, glXQueryContext
),
3009 /*** GLX_SGIX_fbconfig ***/
3010 GLX_FUNCTION2(glXGetFBConfigAttribSGIX
, glXGetFBConfigAttrib
),
3011 GLX_FUNCTION2(glXChooseFBConfigSGIX
, glXChooseFBConfig
),
3012 GLX_FUNCTION(glXCreateGLXPixmapWithConfigSGIX
),
3013 GLX_FUNCTION(glXCreateContextWithConfigSGIX
),
3014 GLX_FUNCTION2(glXGetVisualFromFBConfigSGIX
, glXGetVisualFromFBConfig
),
3015 GLX_FUNCTION(glXGetFBConfigFromVisualSGIX
),
3017 /*** GLX_SGIX_pbuffer ***/
3018 GLX_FUNCTION(glXCreateGLXPbufferSGIX
),
3019 GLX_FUNCTION(glXDestroyGLXPbufferSGIX
),
3020 GLX_FUNCTION(glXQueryGLXPbufferSGIX
),
3021 GLX_FUNCTION(glXSelectEventSGIX
),
3022 GLX_FUNCTION(glXGetSelectedEventSGIX
),
3024 /*** GLX_SGIX_swap_group ***/
3025 GLX_FUNCTION2(glXJoinSwapGroupSGIX
, __glXJoinSwapGroupSGIX
),
3027 /*** GLX_SGIX_swap_barrier ***/
3028 GLX_FUNCTION2(glXBindSwapBarrierSGIX
, __glXBindSwapBarrierSGIX
),
3029 GLX_FUNCTION2(glXQueryMaxSwapBarriersSGIX
, __glXQueryMaxSwapBarriersSGIX
),
3031 /*** GLX_MESA_allocate_memory ***/
3032 GLX_FUNCTION(glXAllocateMemoryMESA
),
3033 GLX_FUNCTION(glXFreeMemoryMESA
),
3034 GLX_FUNCTION(glXGetMemoryOffsetMESA
),
3036 /*** GLX_MESA_copy_sub_buffer ***/
3037 GLX_FUNCTION2(glXCopySubBufferMESA
, __glXCopySubBufferMESA
),
3039 /*** GLX_MESA_pixmap_colormap ***/
3040 GLX_FUNCTION(glXCreateGLXPixmapMESA
),
3042 /*** GLX_MESA_release_buffers ***/
3043 GLX_FUNCTION2(glXReleaseBuffersMESA
, __glXReleaseBuffersMESA
),
3045 /*** GLX_MESA_swap_control ***/
3046 GLX_FUNCTION2(glXSwapIntervalMESA
, __glXSwapIntervalMESA
),
3047 GLX_FUNCTION2(glXGetSwapIntervalMESA
, __glXGetSwapIntervalMESA
),
3049 /*** GLX_MESA_swap_frame_usage ***/
3050 GLX_FUNCTION2(glXBeginFrameTrackingMESA
, __glXBeginFrameTrackingMESA
),
3051 GLX_FUNCTION2(glXEndFrameTrackingMESA
, __glXEndFrameTrackingMESA
),
3052 GLX_FUNCTION2(glXGetFrameUsageMESA
, __glXGetFrameUsageMESA
),
3053 GLX_FUNCTION2(glXQueryFrameTrackingMESA
, __glXQueryFrameTrackingMESA
),
3055 /*** GLX_ARB_get_proc_address ***/
3056 GLX_FUNCTION(glXGetProcAddressARB
),
3059 GLX_FUNCTION2(glXGetProcAddress
, glXGetProcAddressARB
),
3061 /*** GLX_OML_sync_control ***/
3062 GLX_FUNCTION2(glXWaitForSbcOML
, __glXWaitForSbcOML
),
3063 GLX_FUNCTION2(glXWaitForMscOML
, __glXWaitForMscOML
),
3064 GLX_FUNCTION2(glXSwapBuffersMscOML
, __glXSwapBuffersMscOML
),
3065 GLX_FUNCTION2(glXGetMscRateOML
, __glXGetMscRateOML
),
3066 GLX_FUNCTION2(glXGetSyncValuesOML
, __glXGetSyncValuesOML
),
3068 /*** GLX_EXT_texture_from_pixmap ***/
3069 GLX_FUNCTION2(glXBindTexImageEXT
, __glXBindTexImageEXT
),
3070 GLX_FUNCTION2(glXReleaseTexImageEXT
, __glXReleaseTexImageEXT
),
3072 #ifdef GLX_DIRECT_RENDERING
3073 /*** DRI configuration ***/
3074 GLX_FUNCTION(glXGetScreenDriver
),
3075 GLX_FUNCTION(glXGetDriverConfig
),
3078 {NULL
, NULL
} /* end of list */
3082 static const GLvoid
*
3083 get_glx_proc_address(const char *funcName
)
3087 /* try static functions */
3088 for (i
= 0; GLX_functions
[i
].Name
; i
++) {
3089 if (strcmp(GLX_functions
[i
].Name
, funcName
) == 0)
3090 return GLX_functions
[i
].Address
;
3098 * Get the address of a named GL function. This is the pre-GLX 1.4 name for
3099 * \c glXGetProcAddress.
3101 * \param procName Name of a GL or GLX function.
3102 * \returns A pointer to the named function
3104 * \sa glXGetProcAddress
3106 PUBLIC
void (*glXGetProcAddressARB(const GLubyte
* procName
)) (void)
3108 typedef void (*gl_function
) (void);
3112 /* Search the table of GLX and internal functions first. If that
3113 * fails and the supplied name could be a valid core GL name, try
3114 * searching the core GL function table. This check is done to prevent
3115 * DRI based drivers from searching the core GL function table for
3116 * internal API functions.
3119 f
= (gl_function
) get_glx_proc_address((const char *) procName
);
3120 if ((f
== NULL
) && (procName
[0] == 'g') && (procName
[1] == 'l')
3121 && (procName
[2] != 'X')) {
3122 f
= (gl_function
) _glapi_get_proc_address((const char *) procName
);
3129 * Get the address of a named GL function. This is the GLX 1.4 name for
3130 * \c glXGetProcAddressARB.
3132 * \param procName Name of a GL or GLX function.
3133 * \returns A pointer to the named function
3135 * \sa glXGetProcAddressARB
3137 PUBLIC
void (*glXGetProcAddress(const GLubyte
* procName
)) (void)
3138 #if defined(__GNUC__) && !defined(GLX_ALIAS_UNSUPPORTED)
3139 __attribute__ ((alias("glXGetProcAddressARB")));
3142 return glXGetProcAddressARB(procName
);
3144 #endif /* __GNUC__ */
3147 #ifdef GLX_DIRECT_RENDERING
3149 * Get the unadjusted system time (UST). Currently, the UST is measured in
3150 * microseconds since Epoc. The actual resolution of the UST may vary from
3151 * system to system, and the units may vary from release to release.
3152 * Drivers should not call this function directly. They should instead use
3153 * \c glXGetProcAddress to obtain a pointer to the function.
3155 * \param ust Location to store the 64-bit UST
3156 * \returns Zero on success or a negative errno value on failure.
3158 * \sa glXGetProcAddress, PFNGLXGETUSTPROC
3160 * \since Internal API version 20030317.
3163 __glXGetUST(int64_t * ust
)
3171 if (gettimeofday(&tv
, NULL
) == 0) {
3172 ust
[0] = (tv
.tv_sec
* 1000000) + tv
.tv_usec
;
3179 #endif /* GLX_DIRECT_RENDERING */