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>
48 #include <X11/Xlib-xcb.h>
53 static const char __glXGLXClientVendorName
[] = "Mesa Project and SGI";
54 static const char __glXGLXClientVersion
[] = "1.4";
57 /****************************************************************************/
59 #ifdef GLX_DIRECT_RENDERING
61 static Bool windowExistsFlag
;
63 windowExistsErrorHandler(Display
* dpy
, XErrorEvent
* xerr
)
65 if (xerr
->error_code
== BadWindow
) {
66 windowExistsFlag
= GL_FALSE
;
72 * Find drawables in the local hash that have been destroyed on the
75 * \param dpy Display to destroy drawables for
76 * \param screen Screen number to destroy drawables for
79 GarbageCollectDRIDrawables(Display
* dpy
, __GLXscreenConfigs
* sc
)
82 __GLXDRIdrawable
*pdraw
;
83 XWindowAttributes xwa
;
84 int (*oldXErrorHandler
) (Display
*, XErrorEvent
*);
86 /* Set no-op error handler so Xlib doesn't bail out if the windows
87 * has alreay been destroyed on the server. */
89 oldXErrorHandler
= XSetErrorHandler(windowExistsErrorHandler
);
91 if (__glxHashFirst(sc
->drawHash
, &draw
, (void *) &pdraw
) == 1) {
93 windowExistsFlag
= GL_TRUE
;
94 XGetWindowAttributes(dpy
, draw
, &xwa
); /* dummy request */
95 if (!windowExistsFlag
) {
96 /* Destroy the local drawable data, if the drawable no
97 longer exists in the Xserver */
98 (*pdraw
->destroyDrawable
) (pdraw
);
99 __glxHashDelete(sc
->drawHash
, draw
);
101 } while (__glxHashNext(sc
->drawHash
, &draw
, (void *) &pdraw
) == 1);
104 XSync(dpy
, GL_FALSE
);
105 XSetErrorHandler(oldXErrorHandler
);
109 * Get the __DRIdrawable for the drawable associated with a GLXContext
111 * \param dpy The display associated with \c drawable.
112 * \param drawable GLXDrawable whose __DRIdrawable part is to be retrieved.
113 * \param scrn_num If non-NULL, the drawables screen is stored there
114 * \returns A pointer to the context's __DRIdrawable on success, or NULL if
115 * the drawable is not associated with a direct-rendering context.
117 _X_HIDDEN __GLXDRIdrawable
*
118 GetGLXDRIDrawable(Display
* dpy
, GLXDrawable drawable
, int *const scrn_num
)
120 __GLXdisplayPrivate
*priv
= __glXInitialize(dpy
);
121 __GLXDRIdrawable
*pdraw
;
122 const unsigned screen_count
= ScreenCount(dpy
);
124 __GLXscreenConfigs
*psc
;
129 for (i
= 0; i
< screen_count
; i
++) {
130 psc
= &priv
->screenConfigs
[i
];
131 if (psc
->drawHash
== NULL
)
134 if (__glxHashLookup(psc
->drawHash
, drawable
, (void *) &pdraw
) == 0) {
135 if (scrn_num
!= NULL
)
148 * Get the GLX per-screen data structure associated with a GLX context.
150 * \param dpy Display for which the GLX per-screen information is to be
152 * \param scrn Screen on \c dpy for which the GLX per-screen information is
154 * \returns A pointer to the GLX per-screen data if \c dpy and \c scrn
155 * specify a valid GLX screen, or NULL otherwise.
157 * \todo Should this function validate that \c scrn is within the screen
158 * number range for \c dpy?
161 static __GLXscreenConfigs
*
162 GetGLXScreenConfigs(Display
* dpy
, int scrn
)
164 __GLXdisplayPrivate
*const priv
= __glXInitialize(dpy
);
167 && priv
->screenConfigs
!=
168 NULL
) ? &priv
->screenConfigs
[scrn
] : NULL
;
173 GetGLXPrivScreenConfig(Display
* dpy
, int scrn
, __GLXdisplayPrivate
** ppriv
,
174 __GLXscreenConfigs
** ppsc
)
176 /* Initialize the extension, if needed . This has the added value
177 * of initializing/allocating the display private
181 return GLX_NO_EXTENSION
;
184 *ppriv
= __glXInitialize(dpy
);
185 if (*ppriv
== NULL
) {
186 return GLX_NO_EXTENSION
;
189 /* Check screen number to see if its valid */
190 if ((scrn
< 0) || (scrn
>= ScreenCount(dpy
))) {
191 return GLX_BAD_SCREEN
;
194 /* Check to see if the GL is supported on this screen */
195 *ppsc
= &((*ppriv
)->screenConfigs
[scrn
]);
196 if ((*ppsc
)->configs
== NULL
) {
197 /* No support for GL on this screen regardless of visual */
198 return GLX_BAD_VISUAL
;
206 * Determine if a \c GLXFBConfig supplied by the application is valid.
208 * \param dpy Application supplied \c Display pointer.
209 * \param config Application supplied \c GLXFBConfig.
211 * \returns If the \c GLXFBConfig is valid, the a pointer to the matching
212 * \c __GLcontextModes structure is returned. Otherwise, \c NULL
215 static __GLcontextModes
*
216 ValidateGLXFBConfig(Display
* dpy
, GLXFBConfig config
)
218 __GLXdisplayPrivate
*const priv
= __glXInitialize(dpy
);
219 const unsigned num_screens
= ScreenCount(dpy
);
221 const __GLcontextModes
*modes
;
225 for (i
= 0; i
< num_screens
; i
++) {
226 for (modes
= priv
->screenConfigs
[i
].configs
; modes
!= NULL
;
227 modes
= modes
->next
) {
228 if (modes
== (__GLcontextModes
*) config
) {
229 return (__GLcontextModes
*) config
;
240 * \todo It should be possible to move the allocate of \c client_state_private
241 * later in the function for direct-rendering contexts. Direct-rendering
242 * contexts don't need to track client state, so they don't need that memory
245 * \todo Eliminate \c __glXInitVertexArrayState. Replace it with a new
246 * function called \c __glXAllocateClientState that allocates the memory and
247 * does all the initialization (including the pixel pack / unpack).
250 AllocateGLXContext(Display
* dpy
)
255 __GLXattribute
*state
;
260 opcode
= __glXSetupForCommand(dpy
);
265 /* Allocate our context record */
266 gc
= (GLXContext
) Xmalloc(sizeof(struct __GLXcontextRec
));
271 memset(gc
, 0, sizeof(struct __GLXcontextRec
));
273 state
= Xmalloc(sizeof(struct __GLXattributeRec
));
279 gc
->client_state_private
= state
;
280 memset(gc
->client_state_private
, 0, sizeof(struct __GLXattributeRec
));
281 state
->NoDrawArraysProtocol
= (getenv("LIBGL_NO_DRAWARRAYS") != NULL
);
284 ** Create a temporary buffer to hold GLX rendering commands. The size
285 ** of the buffer is selected so that the maximum number of GLX rendering
286 ** commands can fit in a single X packet and still have room in the X
287 ** packet for the GLXRenderReq header.
290 bufSize
= (XMaxRequestSize(dpy
) * 4) - sz_xGLXRenderReq
;
291 gc
->buf
= (GLubyte
*) Xmalloc(bufSize
);
293 Xfree(gc
->client_state_private
);
297 gc
->bufSize
= bufSize
;
299 /* Fill in the new context */
300 gc
->renderMode
= GL_RENDER
;
302 state
->storePack
.alignment
= 4;
303 state
->storeUnpack
.alignment
= 4;
305 gc
->attributes
.stackPointer
= &gc
->attributes
.stack
[0];
308 ** PERFORMANCE NOTE: A mode dependent fill image can speed things up.
309 ** Other code uses the fastImageUnpack bit, but it is never set
312 gc
->fastImageUnpack
= GL_FALSE
;
313 gc
->fillImage
= __glFillImage
;
315 gc
->bufEnd
= gc
->buf
+ bufSize
;
316 gc
->isDirect
= GL_FALSE
;
319 ** Set limit register so that there will be one command per packet
324 gc
->limit
= gc
->buf
+ bufSize
- __GLX_BUFFER_LIMIT_SIZE
;
327 gc
->majorOpcode
= opcode
;
330 ** Constrain the maximum drawing command size allowed to be
331 ** transfered using the X_GLXRender protocol request. First
332 ** constrain by a software limit, then constrain by the protocl
335 if (bufSize
> __GLX_RENDER_CMD_SIZE_LIMIT
) {
336 bufSize
= __GLX_RENDER_CMD_SIZE_LIMIT
;
338 if (bufSize
> __GLX_MAX_RENDER_CMD_SIZE
) {
339 bufSize
= __GLX_MAX_RENDER_CMD_SIZE
;
341 gc
->maxSmallRenderCommandSize
= bufSize
;
347 * Create a new context. Exactly one of \c vis and \c fbconfig should be
350 * \param use_glx_1_3 For FBConfigs, should GLX 1.3 protocol or
351 * SGIX_fbconfig protocol be used?
352 * \param renderType For FBConfigs, what is the rendering type?
356 CreateContext(Display
* dpy
, XVisualInfo
* vis
,
357 const __GLcontextModes
* const fbconfig
,
358 GLXContext shareList
,
359 Bool allowDirect
, GLXContextID contextID
,
360 Bool use_glx_1_3
, int renderType
)
363 #ifdef GLX_DIRECT_RENDERING
364 int screen
= (fbconfig
== NULL
) ? vis
->screen
: fbconfig
->screen
;
365 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, screen
);
371 gc
= AllocateGLXContext(dpy
);
375 if (None
== contextID
) {
376 if ((vis
== NULL
) && (fbconfig
== NULL
))
379 #ifdef GLX_DIRECT_RENDERING
380 if (allowDirect
&& psc
->driScreen
) {
381 const __GLcontextModes
*mode
;
383 if (fbconfig
== NULL
) {
384 mode
= _gl_context_modes_find_visual(psc
->visuals
, vis
->visualid
);
388 error
.errorCode
= BadValue
;
389 error
.resourceID
= vis
->visualid
;
390 error
.sequenceNumber
= dpy
->request
;
391 error
.type
= X_Error
;
392 error
.majorCode
= gc
->majorOpcode
;
393 error
.minorCode
= X_GLXCreateContext
;
394 _XError(dpy
, &error
);
397 if (renderType
== 0) {
398 /* Initialize renderType now */
399 renderType
= mode
->rgbMode
? GLX_RGBA_TYPE
: GLX_COLOR_INDEX_TYPE
;
406 gc
->driContext
= psc
->driScreen
->createContext(psc
, mode
, gc
,
409 if (gc
->driContext
!= NULL
) {
410 gc
->screen
= mode
->screen
;
413 gc
->isDirect
= GL_TRUE
;
419 if (fbconfig
== NULL
) {
420 xGLXCreateContextReq
*req
;
422 /* Send the glXCreateContext request */
423 GetReq(GLXCreateContext
, req
);
424 req
->reqType
= gc
->majorOpcode
;
425 req
->glxCode
= X_GLXCreateContext
;
426 req
->context
= gc
->xid
= XAllocID(dpy
);
427 req
->visual
= vis
->visualid
;
428 req
->screen
= vis
->screen
;
429 req
->shareList
= shareList
? shareList
->xid
: None
;
430 #ifdef GLX_DIRECT_RENDERING
431 req
->isDirect
= gc
->driContext
!= NULL
;
436 else if (use_glx_1_3
) {
437 xGLXCreateNewContextReq
*req
;
439 /* Send the glXCreateNewContext request */
440 GetReq(GLXCreateNewContext
, req
);
441 req
->reqType
= gc
->majorOpcode
;
442 req
->glxCode
= X_GLXCreateNewContext
;
443 req
->context
= gc
->xid
= XAllocID(dpy
);
444 req
->fbconfig
= fbconfig
->fbconfigID
;
445 req
->screen
= fbconfig
->screen
;
446 req
->renderType
= renderType
;
447 req
->shareList
= shareList
? shareList
->xid
: None
;
448 #ifdef GLX_DIRECT_RENDERING
449 req
->isDirect
= gc
->driContext
!= NULL
;
455 xGLXVendorPrivateWithReplyReq
*vpreq
;
456 xGLXCreateContextWithConfigSGIXReq
*req
;
458 /* Send the glXCreateNewContext request */
459 GetReqExtra(GLXVendorPrivateWithReply
,
460 sz_xGLXCreateContextWithConfigSGIXReq
-
461 sz_xGLXVendorPrivateWithReplyReq
, vpreq
);
462 req
= (xGLXCreateContextWithConfigSGIXReq
*) vpreq
;
463 req
->reqType
= gc
->majorOpcode
;
464 req
->glxCode
= X_GLXVendorPrivateWithReply
;
465 req
->vendorCode
= X_GLXvop_CreateContextWithConfigSGIX
;
466 req
->context
= gc
->xid
= XAllocID(dpy
);
467 req
->fbconfig
= fbconfig
->fbconfigID
;
468 req
->screen
= fbconfig
->screen
;
469 req
->renderType
= renderType
;
470 req
->shareList
= shareList
? shareList
->xid
: None
;
471 #ifdef GLX_DIRECT_RENDERING
472 req
->isDirect
= gc
->driContext
!= NULL
;
480 gc
->imported
= GL_FALSE
;
484 gc
->imported
= GL_TRUE
;
487 gc
->renderType
= renderType
;
493 glXCreateContext(Display
* dpy
, XVisualInfo
* vis
,
494 GLXContext shareList
, Bool allowDirect
)
496 return CreateContext(dpy
, vis
, NULL
, shareList
, allowDirect
, None
,
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
)
863 #ifdef GLX_DIRECT_RENDERING
865 else if (gc
->driContext
) {
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 ( (a-> param != GLX_DONT_CARE) \
1099 && (a-> param != b-> param) ) { \
1104 #define MATCH_MINIMUM( param ) \
1106 if ( (a-> param != 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
!= 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
)
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
;
1644 nPropListBytes
= numValues
<< 3;
1645 propList
= (int *) Xmalloc(nPropListBytes
);
1646 if (NULL
== propList
) {
1650 _XRead(dpy
, (char *) propList
, nPropListBytes
);
1652 for (i
= 0; i
< numValues
; i
++) {
1654 case GLX_SHARE_CONTEXT_EXT
:
1655 ctx
->share_xid
= *pProp
++;
1657 case GLX_VISUAL_ID_EXT
:
1659 _gl_context_modes_find_visual(ctx
->psc
->visuals
, *pProp
++);
1662 ctx
->screen
= *pProp
++;
1664 case GLX_FBCONFIG_ID
:
1666 _gl_context_modes_find_fbconfig(ctx
->psc
->configs
,
1669 case GLX_RENDER_TYPE
:
1670 ctx
->renderType
= *pProp
++;
1677 Xfree((char *) propList
);
1687 glXQueryContext(Display
* dpy
, GLXContext ctx
, int attribute
, int *value
)
1691 /* get the information from the server if we don't have it already */
1692 #ifdef GLX_DIRECT_RENDERING
1693 if (!ctx
->driContext
&& (ctx
->mode
== NULL
)) {
1695 if (ctx
->mode
== NULL
) {
1697 retVal
= __glXQueryContextInfo(dpy
, ctx
);
1698 if (Success
!= retVal
)
1701 switch (attribute
) {
1702 case GLX_SHARE_CONTEXT_EXT
:
1703 *value
= (int) (ctx
->share_xid
);
1705 case GLX_VISUAL_ID_EXT
:
1706 *value
= ctx
->mode
? ctx
->mode
->visualID
: None
;
1709 *value
= (int) (ctx
->screen
);
1711 case GLX_FBCONFIG_ID
:
1712 *value
= ctx
->mode
? ctx
->mode
->fbconfigID
: None
;
1714 case GLX_RENDER_TYPE
:
1715 *value
= (int) (ctx
->renderType
);
1718 return GLX_BAD_ATTRIBUTE
;
1724 GLX_ALIAS(int, glXQueryContextInfoEXT
,
1725 (Display
* dpy
, GLXContext ctx
, int attribute
, int *value
),
1726 (dpy
, ctx
, attribute
, value
), glXQueryContext
)
1728 PUBLIC GLXContextID
glXGetContextIDEXT(const GLXContext ctx
)
1734 glXImportContextEXT(Display
* dpy
, GLXContextID contextID
)
1738 if (contextID
== None
) {
1741 if (__glXIsDirect(dpy
, contextID
)) {
1745 ctx
= CreateContext(dpy
, NULL
, NULL
, NULL
, False
, contextID
, False
, 0);
1747 if (Success
!= __glXQueryContextInfo(dpy
, ctx
)) {
1755 glXFreeContextEXT(Display
* dpy
, GLXContext ctx
)
1757 DestroyContext(dpy
, ctx
);
1763 * GLX 1.3 functions - these are just stubs for now!
1766 PUBLIC GLXFBConfig
*
1767 glXChooseFBConfig(Display
* dpy
, int screen
,
1768 const int *attribList
, int *nitems
)
1770 __GLcontextModes
**config_list
;
1774 config_list
= (__GLcontextModes
**)
1775 glXGetFBConfigs(dpy
, screen
, &list_size
);
1777 if ((config_list
!= NULL
) && (list_size
> 0) && (attribList
!= NULL
)) {
1778 list_size
= choose_visual(config_list
, list_size
, attribList
, GL_TRUE
);
1779 if (list_size
== 0) {
1785 *nitems
= list_size
;
1786 return (GLXFBConfig
*) config_list
;
1791 glXCreateNewContext(Display
* dpy
, GLXFBConfig config
,
1792 int renderType
, GLXContext shareList
, Bool allowDirect
)
1794 return CreateContext(dpy
, NULL
, (__GLcontextModes
*) config
, shareList
,
1795 allowDirect
, None
, True
, renderType
);
1800 glXGetCurrentReadDrawable(void)
1802 GLXContext gc
= __glXGetCurrentContext();
1803 return gc
->currentReadable
;
1807 PUBLIC GLXFBConfig
*
1808 glXGetFBConfigs(Display
* dpy
, int screen
, int *nelements
)
1810 __GLXdisplayPrivate
*priv
= __glXInitialize(dpy
);
1811 __GLcontextModes
**config
= NULL
;
1815 if (priv
&& (priv
->screenConfigs
!= NULL
)
1816 && (screen
>= 0) && (screen
<= ScreenCount(dpy
))
1817 && (priv
->screenConfigs
[screen
].configs
!= NULL
)
1818 && (priv
->screenConfigs
[screen
].configs
->fbconfigID
!= GLX_DONT_CARE
)) {
1819 unsigned num_configs
= 0;
1820 __GLcontextModes
*modes
;
1823 for (modes
= priv
->screenConfigs
[screen
].configs
; modes
!= NULL
;
1824 modes
= modes
->next
) {
1825 if (modes
->fbconfigID
!= GLX_DONT_CARE
) {
1830 config
= (__GLcontextModes
**) Xmalloc(sizeof(__GLcontextModes
*)
1832 if (config
!= NULL
) {
1833 *nelements
= num_configs
;
1835 for (modes
= priv
->screenConfigs
[screen
].configs
; modes
!= NULL
;
1836 modes
= modes
->next
) {
1837 if (modes
->fbconfigID
!= GLX_DONT_CARE
) {
1844 return (GLXFBConfig
*) config
;
1849 glXGetFBConfigAttrib(Display
* dpy
, GLXFBConfig config
,
1850 int attribute
, int *value
)
1852 __GLcontextModes
*const modes
= ValidateGLXFBConfig(dpy
, config
);
1854 return (modes
!= NULL
)
1855 ? _gl_get_context_mode_data(modes
, attribute
, value
)
1860 PUBLIC XVisualInfo
*
1861 glXGetVisualFromFBConfig(Display
* dpy
, GLXFBConfig config
)
1863 XVisualInfo visualTemplate
;
1864 __GLcontextModes
*fbconfig
= (__GLcontextModes
*) config
;
1868 ** Get a list of all visuals, return if list is empty
1870 visualTemplate
.visualid
= fbconfig
->visualID
;
1871 return XGetVisualInfo(dpy
, VisualIDMask
, &visualTemplate
, &count
);
1876 ** GLX_SGI_swap_control
1879 __glXSwapIntervalSGI(int interval
)
1881 xGLXVendorPrivateReq
*req
;
1882 GLXContext gc
= __glXGetCurrentContext();
1883 __GLXscreenConfigs
*psc
;
1885 CARD32
*interval_ptr
;
1889 return GLX_BAD_CONTEXT
;
1892 if (interval
<= 0) {
1893 return GLX_BAD_VALUE
;
1896 #ifdef __DRI_SWAP_CONTROL
1897 if (gc
->driContext
) {
1898 __GLXscreenConfigs
* const psc
= GetGLXScreenConfigs( gc
->currentDpy
,
1900 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(gc
->currentDpy
,
1901 gc
->currentDrawable
,
1903 if (psc
->swapControl
!= NULL
&& pdraw
!= NULL
) {
1904 psc
->swapControl
->setSwapInterval(pdraw
->driDrawable
, interval
);
1907 else if (pdraw
== NULL
) {
1908 return GLX_BAD_CONTEXT
;
1912 psc
= GetGLXScreenConfigs( gc
->currentDpy
, gc
->screen
);
1914 if (gc
->driContext
&& psc
->driScreen
&& psc
->driScreen
->setSwapInterval
) {
1915 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(gc
->currentDpy
,
1916 gc
->currentDrawable
,
1918 psc
->driScreen
->setSwapInterval(pdraw
, interval
);
1922 dpy
= gc
->currentDpy
;
1923 opcode
= __glXSetupForCommand(dpy
);
1928 /* Send the glXSwapIntervalSGI request */
1930 GetReqExtra(GLXVendorPrivate
, sizeof(CARD32
), req
);
1931 req
->reqType
= opcode
;
1932 req
->glxCode
= X_GLXVendorPrivate
;
1933 req
->vendorCode
= X_GLXvop_SwapIntervalSGI
;
1934 req
->contextTag
= gc
->currentContextTag
;
1936 interval_ptr
= (CARD32
*) (req
+ 1);
1937 *interval_ptr
= interval
;
1948 ** GLX_MESA_swap_control
1951 __glXSwapIntervalMESA(unsigned int interval
)
1953 GLXContext gc
= __glXGetCurrentContext();
1956 return GLX_BAD_VALUE
;
1959 #ifdef __DRI_SWAP_CONTROL
1960 if (gc
!= NULL
&& gc
->driContext
) {
1961 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(gc
->currentDpy
,
1964 if ((psc
!= NULL
) && (psc
->driScreen
!= NULL
)) {
1965 __GLXDRIdrawable
*pdraw
=
1966 GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
, NULL
);
1967 if (psc
->swapControl
!= NULL
&& pdraw
!= NULL
) {
1968 psc
->swapControl
->setSwapInterval(pdraw
->driDrawable
, interval
);
1975 if (gc
!= NULL
&& gc
->driContext
) {
1976 __GLXscreenConfigs
*psc
;
1978 psc
= GetGLXScreenConfigs( gc
->currentDpy
, gc
->screen
);
1979 if (psc
->driScreen
&& psc
->driScreen
->setSwapInterval
) {
1980 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(gc
->currentDpy
,
1981 gc
->currentDrawable
, NULL
);
1982 psc
->driScreen
->setSwapInterval(pdraw
, interval
);
1987 return GLX_BAD_CONTEXT
;
1992 __glXGetSwapIntervalMESA(void)
1994 #ifdef __DRI_SWAP_CONTROL
1995 GLXContext gc
= __glXGetCurrentContext();
1997 if (gc
!= NULL
&& gc
->driContext
) {
1998 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(gc
->currentDpy
,
2001 if ((psc
!= NULL
) && (psc
->driScreen
!= NULL
)) {
2002 __GLXDRIdrawable
*pdraw
=
2003 GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
, NULL
);
2004 if (psc
->swapControl
!= NULL
&& pdraw
!= NULL
) {
2005 return psc
->swapControl
->getSwapInterval(pdraw
->driDrawable
);
2010 if (gc
!= NULL
&& gc
->driContext
) {
2011 __GLXscreenConfigs
*psc
;
2013 psc
= GetGLXScreenConfigs( gc
->currentDpy
, gc
->screen
);
2014 if (psc
->driScreen
&& psc
->driScreen
->getSwapInterval
) {
2015 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(gc
->currentDpy
,
2016 gc
->currentDrawable
, NULL
);
2017 return psc
->driScreen
->getSwapInterval(pdraw
);
2026 ** GLX_MESA_swap_frame_usage
2030 __glXBeginFrameTrackingMESA(Display
* dpy
, GLXDrawable drawable
)
2032 int status
= GLX_BAD_CONTEXT
;
2033 #ifdef __DRI_FRAME_TRACKING
2035 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
, &screen
);
2036 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, screen
);
2038 if (pdraw
!= NULL
&& psc
->frameTracking
!= NULL
)
2039 status
= psc
->frameTracking
->frameTracking(pdraw
->driDrawable
, GL_TRUE
);
2049 __glXEndFrameTrackingMESA(Display
* dpy
, GLXDrawable drawable
)
2051 int status
= GLX_BAD_CONTEXT
;
2052 #ifdef __DRI_FRAME_TRACKING
2054 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
, &screen
);
2055 __GLXscreenConfigs
*psc
= GetGLXScreenConfigs(dpy
, screen
);
2057 if (pdraw
!= NULL
&& psc
->frameTracking
!= NULL
)
2058 status
= psc
->frameTracking
->frameTracking(pdraw
->driDrawable
,
2069 __glXGetFrameUsageMESA(Display
* dpy
, GLXDrawable drawable
, GLfloat
* usage
)
2071 int status
= GLX_BAD_CONTEXT
;
2072 #ifdef __DRI_FRAME_TRACKING
2074 __GLXDRIdrawable
*const pdraw
= GetGLXDRIDrawable(dpy
, drawable
, &screen
);
2075 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, screen
);
2077 if (pdraw
!= NULL
&& psc
->frameTracking
!= NULL
) {
2078 int64_t sbc
, missedFrames
;
2079 float lastMissedUsage
;
2081 status
= psc
->frameTracking
->queryFrameTracking(pdraw
->driDrawable
,
2097 __glXQueryFrameTrackingMESA(Display
* dpy
, GLXDrawable drawable
,
2098 int64_t * sbc
, int64_t * missedFrames
,
2099 GLfloat
* lastMissedUsage
)
2101 int status
= GLX_BAD_CONTEXT
;
2102 #ifdef __DRI_FRAME_TRACKING
2104 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
, &screen
);
2105 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, screen
);
2107 if (pdraw
!= NULL
&& psc
->frameTracking
!= NULL
) {
2110 status
= psc
->frameTracking
->queryFrameTracking(pdraw
->driDrawable
,
2119 (void) missedFrames
;
2120 (void) lastMissedUsage
;
2127 ** GLX_SGI_video_sync
2130 __glXGetVideoSyncSGI(unsigned int *count
)
2132 int64_t ust
, msc
, sbc
;
2134 GLXContext gc
= __glXGetCurrentContext();
2135 __GLXscreenConfigs
*psc
;
2136 __GLXDRIdrawable
*pdraw
;
2138 if (!gc
|| !gc
->driContext
)
2139 return GLX_BAD_CONTEXT
;
2141 psc
= GetGLXScreenConfigs(gc
->currentDpy
, gc
->screen
);
2142 pdraw
= GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
, NULL
);
2144 /* FIXME: Looking at the GLX_SGI_video_sync spec in the extension registry,
2145 * FIXME: there should be a GLX encoding for this call. I can find no
2146 * FIXME: documentation for the GLX encoding.
2148 #ifdef __DRI_MEDIA_STREAM_COUNTER
2149 if ( psc
->msc
&& psc
->driScreen
) {
2150 ret
= (*psc
->msc
->getDrawableMSC
)(psc
->__driScreen
,
2151 pdraw
->driDrawable
, &msc
);
2152 *count
= (unsigned) msc
;
2154 return (ret
== 0) ? 0 : GLX_BAD_CONTEXT
;
2157 if (psc
->driScreen
&& psc
->driScreen
->getDrawableMSC
) {
2158 ret
= psc
->driScreen
->getDrawableMSC(psc
, pdraw
, &ust
, &msc
, &sbc
);
2159 *count
= (unsigned) msc
;
2160 return (ret
== True
) ? 0 : GLX_BAD_CONTEXT
;
2163 return GLX_BAD_CONTEXT
;
2167 __glXWaitVideoSyncSGI(int divisor
, int remainder
, unsigned int *count
)
2169 GLXContext gc
= __glXGetCurrentContext();
2170 __GLXscreenConfigs
*psc
;
2171 __GLXDRIdrawable
*pdraw
;
2172 int64_t ust
, msc
, sbc
;
2175 if (divisor
<= 0 || remainder
< 0)
2176 return GLX_BAD_VALUE
;
2178 if (!gc
|| !gc
->driContext
)
2179 return GLX_BAD_CONTEXT
;
2181 psc
= GetGLXScreenConfigs( gc
->currentDpy
, gc
->screen
);
2182 pdraw
= GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
, NULL
);
2184 #ifdef __DRI_MEDIA_STREAM_COUNTER
2185 if (psc
->msc
!= NULL
&& psc
->driScreen
) {
2186 ret
= (*psc
->msc
->waitForMSC
)(pdraw
->driDrawable
, 0,
2187 divisor
, remainder
, &msc
, &sbc
);
2188 *count
= (unsigned) msc
;
2189 return (ret
== 0) ? 0 : GLX_BAD_CONTEXT
;
2192 if (psc
->driScreen
&& psc
->driScreen
->waitForMSC
) {
2193 ret
= psc
->driScreen
->waitForMSC(pdraw
, 0, divisor
, remainder
, &ust
, &msc
,
2195 *count
= (unsigned) msc
;
2196 return (ret
== True
) ? 0 : GLX_BAD_CONTEXT
;
2199 return GLX_BAD_CONTEXT
;
2204 ** GLX_SGIX_fbconfig
2205 ** Many of these functions are aliased to GLX 1.3 entry points in the
2206 ** GLX_functions table.
2210 GLX_ALIAS(int, glXGetFBConfigAttribSGIX
,
2211 (Display
* dpy
, GLXFBConfigSGIX config
, int attribute
, int *value
),
2212 (dpy
, config
, attribute
, value
), glXGetFBConfigAttrib
)
2214 PUBLIC
GLX_ALIAS(GLXFBConfigSGIX
*, glXChooseFBConfigSGIX
,
2215 (Display
* dpy
, int screen
, int *attrib_list
,
2216 int *nelements
), (dpy
, screen
, attrib_list
, nelements
),
2219 PUBLIC
GLX_ALIAS(XVisualInfo
*, glXGetVisualFromFBConfigSGIX
,
2220 (Display
* dpy
, GLXFBConfigSGIX config
),
2221 (dpy
, config
), glXGetVisualFromFBConfig
)
2224 glXCreateGLXPixmapWithConfigSGIX(Display
* dpy
,
2225 GLXFBConfigSGIX config
,
2228 xGLXVendorPrivateWithReplyReq
*vpreq
;
2229 xGLXCreateGLXPixmapWithConfigSGIXReq
*req
;
2230 GLXPixmap xid
= None
;
2232 const __GLcontextModes
*const fbconfig
= (__GLcontextModes
*) config
;
2233 __GLXscreenConfigs
*psc
;
2236 if ((dpy
== NULL
) || (config
== NULL
)) {
2240 psc
= GetGLXScreenConfigs(dpy
, fbconfig
->screen
);
2242 && __glXExtensionBitIsEnabled(psc
, SGIX_fbconfig_bit
)) {
2243 opcode
= __glXSetupForCommand(dpy
);
2248 /* Send the glXCreateGLXPixmapWithConfigSGIX request */
2250 GetReqExtra(GLXVendorPrivateWithReply
,
2251 sz_xGLXCreateGLXPixmapWithConfigSGIXReq
-
2252 sz_xGLXVendorPrivateWithReplyReq
, vpreq
);
2253 req
= (xGLXCreateGLXPixmapWithConfigSGIXReq
*) vpreq
;
2254 req
->reqType
= opcode
;
2255 req
->glxCode
= X_GLXVendorPrivateWithReply
;
2256 req
->vendorCode
= X_GLXvop_CreateGLXPixmapWithConfigSGIX
;
2257 req
->screen
= fbconfig
->screen
;
2258 req
->fbconfig
= fbconfig
->fbconfigID
;
2259 req
->pixmap
= pixmap
;
2260 req
->glxpixmap
= xid
= XAllocID(dpy
);
2269 glXCreateContextWithConfigSGIX(Display
* dpy
,
2270 GLXFBConfigSGIX config
, int renderType
,
2271 GLXContext shareList
, Bool allowDirect
)
2273 GLXContext gc
= NULL
;
2274 const __GLcontextModes
*const fbconfig
= (__GLcontextModes
*) config
;
2275 __GLXscreenConfigs
*psc
;
2278 if ((dpy
== NULL
) || (config
== NULL
)) {
2282 psc
= GetGLXScreenConfigs(dpy
, fbconfig
->screen
);
2284 && __glXExtensionBitIsEnabled(psc
, SGIX_fbconfig_bit
)) {
2285 gc
= CreateContext(dpy
, NULL
, (__GLcontextModes
*) config
, shareList
,
2286 allowDirect
, None
, False
, renderType
);
2293 PUBLIC GLXFBConfigSGIX
2294 glXGetFBConfigFromVisualSGIX(Display
* dpy
, XVisualInfo
* vis
)
2296 __GLXdisplayPrivate
*priv
;
2297 __GLXscreenConfigs
*psc
= NULL
;
2299 if ((GetGLXPrivScreenConfig(dpy
, vis
->screen
, &priv
, &psc
) != Success
)
2300 && __glXExtensionBitIsEnabled(psc
, SGIX_fbconfig_bit
)
2301 && (psc
->configs
->fbconfigID
!= GLX_DONT_CARE
)) {
2302 return (GLXFBConfigSGIX
) _gl_context_modes_find_visual(psc
->configs
,
2311 ** GLX_SGIX_swap_group
2314 __glXJoinSwapGroupSGIX(Display
* dpy
, GLXDrawable drawable
,
2324 ** GLX_SGIX_swap_barrier
2327 __glXBindSwapBarrierSGIX(Display
* dpy
, GLXDrawable drawable
, int barrier
)
2335 __glXQueryMaxSwapBarriersSGIX(Display
* dpy
, int screen
, int *max
)
2345 ** GLX_OML_sync_control
2348 __glXGetSyncValuesOML(Display
* dpy
, GLXDrawable drawable
,
2349 int64_t * ust
, int64_t * msc
, int64_t * sbc
)
2351 __GLXdisplayPrivate
* const priv
= __glXInitialize(dpy
);
2353 __GLXDRIdrawable
*pdraw
;
2354 __GLXscreenConfigs
*psc
;
2359 pdraw
= GetGLXDRIDrawable(dpy
, drawable
, &i
);
2360 psc
= &priv
->screenConfigs
[i
];
2362 #if defined(__DRI_SWAP_BUFFER_COUNTER) && defined(__DRI_MEDIA_STREAM_COUNTER)
2363 if (pdraw
&& psc
->sbc
&& psc
->sbc
)
2364 return ( (pdraw
&& psc
->sbc
&& psc
->msc
)
2365 && ((*psc
->msc
->getMSC
)(psc
->driScreen
, msc
) == 0)
2366 && ((*psc
->sbc
->getSBC
)(pdraw
->driDrawable
, sbc
) == 0)
2367 && (__glXGetUST(ust
) == 0) );
2369 if (pdraw
&& psc
&& psc
->driScreen
&& psc
->driScreen
->getDrawableMSC
) {
2370 ret
= psc
->driScreen
->getDrawableMSC(psc
, pdraw
, ust
, msc
, sbc
);
2377 #ifdef GLX_DIRECT_RENDERING
2379 __driGetMscRateOML(__DRIdrawable
* draw
,
2380 int32_t * numerator
, int32_t * denominator
, void *private)
2383 __GLXscreenConfigs
*psc
;
2384 XF86VidModeModeLine mode_line
;
2387 __GLXDRIdrawable
*glxDraw
= private;
2390 if (XF86VidModeQueryVersion(psc
->dpy
, &i
, &i
) &&
2391 XF86VidModeGetModeLine(psc
->dpy
, psc
->scr
, &dot_clock
, &mode_line
)) {
2392 unsigned n
= dot_clock
* 1000;
2393 unsigned d
= mode_line
.vtotal
* mode_line
.htotal
;
2395 # define V_INTERLACE 0x010
2396 # define V_DBLSCAN 0x020
2398 if (mode_line
.flags
& V_INTERLACE
)
2400 else if (mode_line
.flags
& V_DBLSCAN
)
2403 /* The OML_sync_control spec requires that if the refresh rate is a
2404 * whole number, that the returned numerator be equal to the refresh
2405 * rate and the denominator be 1.
2413 static const unsigned f
[] = { 13, 11, 7, 5, 3, 2, 0 };
2415 /* This is a poor man's way to reduce a fraction. It's far from
2416 * perfect, but it will work well enough for this situation.
2419 for (i
= 0; f
[i
] != 0; i
++) {
2420 while (n
% f
[i
] == 0 && d
% f
[i
] == 0) {
2441 * Determine the refresh rate of the specified drawable and display.
2443 * \param dpy Display whose refresh rate is to be determined.
2444 * \param drawable Drawable whose refresh rate is to be determined.
2445 * \param numerator Numerator of the refresh rate.
2446 * \param demoninator Denominator of the refresh rate.
2447 * \return If the refresh rate for the specified display and drawable could
2448 * be calculated, True is returned. Otherwise False is returned.
2450 * \note This function is implemented entirely client-side. A lot of other
2451 * functionality is required to export GLX_OML_sync_control, so on
2452 * XFree86 this function can be called for direct-rendering contexts
2453 * when GLX_OML_sync_control appears in the client extension string.
2457 __glXGetMscRateOML(Display
* dpy
, GLXDrawable drawable
,
2458 int32_t * numerator
, int32_t * denominator
)
2460 #if defined( GLX_DIRECT_RENDERING ) && defined( XF86VIDMODE )
2461 __GLXDRIdrawable
*draw
= GetGLXDRIDrawable(dpy
, drawable
, NULL
);
2466 return __driGetMscRateOML(draw
->driDrawable
, numerator
, denominator
, draw
);
2478 __glXSwapBuffersMscOML(Display
* dpy
, GLXDrawable drawable
,
2479 int64_t target_msc
, int64_t divisor
, int64_t remainder
)
2481 GLXContext gc
= __glXGetCurrentContext();
2483 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
, &screen
);
2484 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, screen
);
2486 if (!pdraw
|| !gc
->driContext
) /* no GLX for this */
2489 /* The OML_sync_control spec says these should "generate a GLX_BAD_VALUE
2490 * error", but it also says "It [glXSwapBuffersMscOML] will return a value
2491 * of -1 if the function failed because of errors detected in the input
2494 if (divisor
< 0 || remainder
< 0 || target_msc
< 0)
2496 if (divisor
> 0 && remainder
>= divisor
)
2499 #ifdef __DRI_SWAP_BUFFER_COUNTER
2500 if (psc
->counters
!= NULL
)
2501 return (*psc
->sbc
->swapBuffersMSC
)(pdraw
->driDrawable
, target_msc
,
2502 divisor
, remainder
);
2505 #ifdef GLX_DIRECT_RENDERING
2506 if (psc
->driScreen
&& psc
->driScreen
->swapBuffers
)
2507 return (*psc
->driScreen
->swapBuffers
)(pdraw
, target_msc
, divisor
,
2516 __glXWaitForMscOML(Display
* dpy
, GLXDrawable drawable
,
2517 int64_t target_msc
, int64_t divisor
,
2518 int64_t remainder
, int64_t * ust
,
2519 int64_t * msc
, int64_t * sbc
)
2522 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
, &screen
);
2523 __GLXscreenConfigs
* const psc
= GetGLXScreenConfigs( dpy
, screen
);
2526 fprintf(stderr
, "waitmsc: %lld, %lld, %lld\n", target_msc
, divisor
,
2529 /* The OML_sync_control spec says these should "generate a GLX_BAD_VALUE
2530 * error", but the return type in the spec is Bool.
2532 if (divisor
< 0 || remainder
< 0 || target_msc
< 0)
2534 if (divisor
> 0 && remainder
>= divisor
)
2537 #ifdef __DRI_MEDIA_STREAM_COUNTER
2538 if (pdraw
!= NULL
&& psc
->msc
!= NULL
) {
2539 fprintf(stderr
, "dri1 msc\n");
2540 ret
= (*psc
->msc
->waitForMSC
) (pdraw
->driDrawable
, target_msc
,
2541 divisor
, remainder
, msc
, sbc
);
2543 /* __glXGetUST returns zero on success and non-zero on failure.
2544 * This function returns True on success and False on failure.
2546 return ((ret
== 0) && (__glXGetUST(ust
) == 0));
2549 if (pdraw
&& psc
->driScreen
&& psc
->driScreen
->waitForMSC
) {
2550 ret
= psc
->driScreen
->waitForMSC(pdraw
, target_msc
, divisor
, remainder
,
2555 fprintf(stderr
, "no drawable??\n");
2561 __glXWaitForSbcOML(Display
* dpy
, GLXDrawable drawable
,
2562 int64_t target_sbc
, int64_t * ust
,
2563 int64_t * msc
, int64_t * sbc
)
2566 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
, &screen
);
2567 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, screen
);
2570 /* The OML_sync_control spec says this should "generate a GLX_BAD_VALUE
2571 * error", but the return type in the spec is Bool.
2575 #ifdef __DRI_SWAP_BUFFER_COUNTER
2576 if (pdraw
!= NULL
&& psc
->sbc
!= NULL
) {
2578 (*psc
->sbc
->waitForSBC
) (pdraw
->driDrawable
, target_sbc
, msc
, sbc
);
2580 /* __glXGetUST returns zero on success and non-zero on failure.
2581 * This function returns True on success and False on failure.
2583 return ((ret
== 0) && (__glXGetUST(ust
) == 0));
2586 if (pdraw
&& psc
->driScreen
&& psc
->driScreen
->waitForMSC
) {
2587 ret
= psc
->driScreen
->waitForSBC(pdraw
, target_sbc
, ust
, msc
, sbc
);
2595 * GLX_MESA_allocate_memory
2600 glXAllocateMemoryMESA(Display
* dpy
, int scrn
,
2601 size_t size
, float readFreq
,
2602 float writeFreq
, float priority
)
2604 #ifdef __DRI_ALLOCATE
2605 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, scrn
);
2607 if (psc
&& psc
->allocate
)
2608 return (*psc
->allocate
->allocateMemory
) (psc
->__driScreen
, size
,
2609 readFreq
, writeFreq
, priority
);
2618 #endif /* __DRI_ALLOCATE */
2625 glXFreeMemoryMESA(Display
* dpy
, int scrn
, void *pointer
)
2627 #ifdef __DRI_ALLOCATE
2628 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, scrn
);
2630 if (psc
&& psc
->allocate
)
2631 (*psc
->allocate
->freeMemory
) (psc
->__driScreen
, pointer
);
2637 #endif /* __DRI_ALLOCATE */
2642 glXGetMemoryOffsetMESA(Display
* dpy
, int scrn
, const void *pointer
)
2644 #ifdef __DRI_ALLOCATE
2645 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, scrn
);
2647 if (psc
&& psc
->allocate
)
2648 return (*psc
->allocate
->memoryOffset
) (psc
->__driScreen
, pointer
);
2654 #endif /* GLX_DIRECT_RENDERING */
2663 * Mesa extension stubs. These will help reduce portability problems.
2668 * Release all buffers associated with the specified GLX drawable.
2671 * This function was intended for stand-alone Mesa. The issue there is that
2672 * the library doesn't get any notification when a window is closed. In
2673 * DRI there is a similar but slightly different issue. When GLX 1.3 is
2674 * supported, there are 3 different functions to destroy a drawable. It
2675 * should be possible to create GLX protocol (or have it determine which
2676 * protocol to use based on the type of the drawable) to have one function
2677 * do the work of 3. For the direct-rendering case, this function could
2678 * just call the driver's \c __DRIdrawableRec::destroyDrawable function.
2679 * This would reduce the frequency with which \c __driGarbageCollectDrawables
2680 * would need to be used. This really should be done as part of the new DRI
2683 * \sa http://oss.sgi.com/projects/ogl-sample/registry/MESA/release_buffers.txt
2684 * __driGarbageCollectDrawables
2685 * glXDestroyGLXPixmap
2686 * glXDestroyPbuffer glXDestroyPixmap glXDestroyWindow
2687 * glXDestroyGLXPbufferSGIX glXDestroyGLXVideoSourceSGIX
2690 __glXReleaseBuffersMESA(Display
* dpy
, GLXDrawable d
)
2699 glXCreateGLXPixmapMESA(Display
* dpy
, XVisualInfo
* visual
,
2700 Pixmap pixmap
, Colormap cmap
)
2713 * GLX_MESA_copy_sub_buffer
2715 #define X_GLXvop_CopySubBufferMESA 5154 /* temporary */
2717 __glXCopySubBufferMESA(Display
* dpy
, GLXDrawable drawable
,
2718 int x
, int y
, int width
, int height
)
2720 xGLXVendorPrivateReq
*req
;
2723 CARD32
*drawable_ptr
;
2724 INT32
*x_ptr
, *y_ptr
, *w_ptr
, *h_ptr
;
2727 #ifdef __DRI_COPY_SUB_BUFFER
2729 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
, &screen
);
2730 if (pdraw
!= NULL
) {
2731 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, screen
);
2732 if (psc
->driScreen
->copySubBuffer
!= NULL
) {
2734 (*psc
->driScreen
->copySubBuffer
) (pdraw
, x
, y
, width
, height
);
2741 opcode
= __glXSetupForCommand(dpy
);
2746 ** The calling thread may or may not have a current context. If it
2747 ** does, send the context tag so the server can do a flush.
2749 gc
= __glXGetCurrentContext();
2750 if ((gc
!= NULL
) && (dpy
== gc
->currentDpy
) &&
2751 ((drawable
== gc
->currentDrawable
) ||
2752 (drawable
== gc
->currentReadable
))) {
2753 tag
= gc
->currentContextTag
;
2760 GetReqExtra(GLXVendorPrivate
, sizeof(CARD32
) + sizeof(INT32
) * 4, req
);
2761 req
->reqType
= opcode
;
2762 req
->glxCode
= X_GLXVendorPrivate
;
2763 req
->vendorCode
= X_GLXvop_CopySubBufferMESA
;
2764 req
->contextTag
= tag
;
2766 drawable_ptr
= (CARD32
*) (req
+ 1);
2767 x_ptr
= (INT32
*) (drawable_ptr
+ 1);
2768 y_ptr
= (INT32
*) (drawable_ptr
+ 2);
2769 w_ptr
= (INT32
*) (drawable_ptr
+ 3);
2770 h_ptr
= (INT32
*) (drawable_ptr
+ 4);
2772 *drawable_ptr
= drawable
;
2784 * GLX_EXT_texture_from_pixmap
2788 __glXBindTexImageEXT(Display
* dpy
,
2789 GLXDrawable drawable
, int buffer
, const int *attrib_list
)
2791 xGLXVendorPrivateReq
*req
;
2792 GLXContext gc
= __glXGetCurrentContext();
2793 CARD32
*drawable_ptr
;
2795 CARD32
*num_attrib_ptr
;
2805 while (attrib_list
[i
* 2] != None
)
2809 #ifdef GLX_DIRECT_RENDERING
2810 if (gc
->driContext
) {
2811 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
, NULL
);
2813 if (pdraw
!= NULL
) {
2814 if (pdraw
->psc
->texBuffer
->base
.version
>= 2 &&
2815 pdraw
->psc
->texBuffer
->setTexBuffer2
!= NULL
) {
2816 (*pdraw
->psc
->texBuffer
->setTexBuffer2
) (gc
->__driContext
,
2817 pdraw
->textureTarget
,
2818 pdraw
->textureFormat
,
2819 pdraw
->driDrawable
);
2822 (*pdraw
->psc
->texBuffer
->setTexBuffer
) (gc
->__driContext
,
2823 pdraw
->textureTarget
,
2824 pdraw
->driDrawable
);
2831 opcode
= __glXSetupForCommand(dpy
);
2836 GetReqExtra(GLXVendorPrivate
, 12 + 8 * i
, req
);
2837 req
->reqType
= opcode
;
2838 req
->glxCode
= X_GLXVendorPrivate
;
2839 req
->vendorCode
= X_GLXvop_BindTexImageEXT
;
2840 req
->contextTag
= gc
->currentContextTag
;
2842 drawable_ptr
= (CARD32
*) (req
+ 1);
2843 buffer_ptr
= (INT32
*) (drawable_ptr
+ 1);
2844 num_attrib_ptr
= (CARD32
*) (buffer_ptr
+ 1);
2845 attrib_ptr
= (CARD32
*) (num_attrib_ptr
+ 1);
2847 *drawable_ptr
= drawable
;
2848 *buffer_ptr
= buffer
;
2849 *num_attrib_ptr
= (CARD32
) i
;
2853 while (attrib_list
[i
* 2] != None
) {
2854 *attrib_ptr
++ = (CARD32
) attrib_list
[i
* 2 + 0];
2855 *attrib_ptr
++ = (CARD32
) attrib_list
[i
* 2 + 1];
2865 __glXReleaseTexImageEXT(Display
* dpy
, GLXDrawable drawable
, int buffer
)
2867 xGLXVendorPrivateReq
*req
;
2868 GLXContext gc
= __glXGetCurrentContext();
2869 CARD32
*drawable_ptr
;
2876 #ifdef GLX_DIRECT_RENDERING
2881 opcode
= __glXSetupForCommand(dpy
);
2886 GetReqExtra(GLXVendorPrivate
, sizeof(CARD32
) + sizeof(INT32
), req
);
2887 req
->reqType
= opcode
;
2888 req
->glxCode
= X_GLXVendorPrivate
;
2889 req
->vendorCode
= X_GLXvop_ReleaseTexImageEXT
;
2890 req
->contextTag
= gc
->currentContextTag
;
2892 drawable_ptr
= (CARD32
*) (req
+ 1);
2893 buffer_ptr
= (INT32
*) (drawable_ptr
+ 1);
2895 *drawable_ptr
= drawable
;
2896 *buffer_ptr
= buffer
;
2905 * \c strdup is actually not a standard ANSI C or POSIX routine.
2906 * Irix will not define it if ANSI mode is in effect.
2911 __glXstrdup(const char *str
)
2914 copy
= (char *) Xmalloc(strlen(str
) + 1);
2922 ** glXGetProcAddress support
2925 struct name_address_pair
2931 #define GLX_FUNCTION(f) { # f, (GLvoid *) f }
2932 #define GLX_FUNCTION2(n,f) { # n, (GLvoid *) f }
2934 static const struct name_address_pair GLX_functions
[] = {
2935 /*** GLX_VERSION_1_0 ***/
2936 GLX_FUNCTION(glXChooseVisual
),
2937 GLX_FUNCTION(glXCopyContext
),
2938 GLX_FUNCTION(glXCreateContext
),
2939 GLX_FUNCTION(glXCreateGLXPixmap
),
2940 GLX_FUNCTION(glXDestroyContext
),
2941 GLX_FUNCTION(glXDestroyGLXPixmap
),
2942 GLX_FUNCTION(glXGetConfig
),
2943 GLX_FUNCTION(glXGetCurrentContext
),
2944 GLX_FUNCTION(glXGetCurrentDrawable
),
2945 GLX_FUNCTION(glXIsDirect
),
2946 GLX_FUNCTION(glXMakeCurrent
),
2947 GLX_FUNCTION(glXQueryExtension
),
2948 GLX_FUNCTION(glXQueryVersion
),
2949 GLX_FUNCTION(glXSwapBuffers
),
2950 GLX_FUNCTION(glXUseXFont
),
2951 GLX_FUNCTION(glXWaitGL
),
2952 GLX_FUNCTION(glXWaitX
),
2954 /*** GLX_VERSION_1_1 ***/
2955 GLX_FUNCTION(glXGetClientString
),
2956 GLX_FUNCTION(glXQueryExtensionsString
),
2957 GLX_FUNCTION(glXQueryServerString
),
2959 /*** GLX_VERSION_1_2 ***/
2960 GLX_FUNCTION(glXGetCurrentDisplay
),
2962 /*** GLX_VERSION_1_3 ***/
2963 GLX_FUNCTION(glXChooseFBConfig
),
2964 GLX_FUNCTION(glXCreateNewContext
),
2965 GLX_FUNCTION(glXCreatePbuffer
),
2966 GLX_FUNCTION(glXCreatePixmap
),
2967 GLX_FUNCTION(glXCreateWindow
),
2968 GLX_FUNCTION(glXDestroyPbuffer
),
2969 GLX_FUNCTION(glXDestroyPixmap
),
2970 GLX_FUNCTION(glXDestroyWindow
),
2971 GLX_FUNCTION(glXGetCurrentReadDrawable
),
2972 GLX_FUNCTION(glXGetFBConfigAttrib
),
2973 GLX_FUNCTION(glXGetFBConfigs
),
2974 GLX_FUNCTION(glXGetSelectedEvent
),
2975 GLX_FUNCTION(glXGetVisualFromFBConfig
),
2976 GLX_FUNCTION(glXMakeContextCurrent
),
2977 GLX_FUNCTION(glXQueryContext
),
2978 GLX_FUNCTION(glXQueryDrawable
),
2979 GLX_FUNCTION(glXSelectEvent
),
2981 /*** GLX_SGI_swap_control ***/
2982 GLX_FUNCTION2(glXSwapIntervalSGI
, __glXSwapIntervalSGI
),
2984 /*** GLX_SGI_video_sync ***/
2985 GLX_FUNCTION2(glXGetVideoSyncSGI
, __glXGetVideoSyncSGI
),
2986 GLX_FUNCTION2(glXWaitVideoSyncSGI
, __glXWaitVideoSyncSGI
),
2988 /*** GLX_SGI_make_current_read ***/
2989 GLX_FUNCTION2(glXMakeCurrentReadSGI
, glXMakeContextCurrent
),
2990 GLX_FUNCTION2(glXGetCurrentReadDrawableSGI
, glXGetCurrentReadDrawable
),
2992 /*** GLX_EXT_import_context ***/
2993 GLX_FUNCTION(glXFreeContextEXT
),
2994 GLX_FUNCTION(glXGetContextIDEXT
),
2995 GLX_FUNCTION2(glXGetCurrentDisplayEXT
, glXGetCurrentDisplay
),
2996 GLX_FUNCTION(glXImportContextEXT
),
2997 GLX_FUNCTION2(glXQueryContextInfoEXT
, glXQueryContext
),
2999 /*** GLX_SGIX_fbconfig ***/
3000 GLX_FUNCTION2(glXGetFBConfigAttribSGIX
, glXGetFBConfigAttrib
),
3001 GLX_FUNCTION2(glXChooseFBConfigSGIX
, glXChooseFBConfig
),
3002 GLX_FUNCTION(glXCreateGLXPixmapWithConfigSGIX
),
3003 GLX_FUNCTION(glXCreateContextWithConfigSGIX
),
3004 GLX_FUNCTION2(glXGetVisualFromFBConfigSGIX
, glXGetVisualFromFBConfig
),
3005 GLX_FUNCTION(glXGetFBConfigFromVisualSGIX
),
3007 /*** GLX_SGIX_pbuffer ***/
3008 GLX_FUNCTION(glXCreateGLXPbufferSGIX
),
3009 GLX_FUNCTION(glXDestroyGLXPbufferSGIX
),
3010 GLX_FUNCTION(glXQueryGLXPbufferSGIX
),
3011 GLX_FUNCTION(glXSelectEventSGIX
),
3012 GLX_FUNCTION(glXGetSelectedEventSGIX
),
3014 /*** GLX_SGIX_swap_group ***/
3015 GLX_FUNCTION2(glXJoinSwapGroupSGIX
, __glXJoinSwapGroupSGIX
),
3017 /*** GLX_SGIX_swap_barrier ***/
3018 GLX_FUNCTION2(glXBindSwapBarrierSGIX
, __glXBindSwapBarrierSGIX
),
3019 GLX_FUNCTION2(glXQueryMaxSwapBarriersSGIX
, __glXQueryMaxSwapBarriersSGIX
),
3021 /*** GLX_MESA_allocate_memory ***/
3022 GLX_FUNCTION(glXAllocateMemoryMESA
),
3023 GLX_FUNCTION(glXFreeMemoryMESA
),
3024 GLX_FUNCTION(glXGetMemoryOffsetMESA
),
3026 /*** GLX_MESA_copy_sub_buffer ***/
3027 GLX_FUNCTION2(glXCopySubBufferMESA
, __glXCopySubBufferMESA
),
3029 /*** GLX_MESA_pixmap_colormap ***/
3030 GLX_FUNCTION(glXCreateGLXPixmapMESA
),
3032 /*** GLX_MESA_release_buffers ***/
3033 GLX_FUNCTION2(glXReleaseBuffersMESA
, __glXReleaseBuffersMESA
),
3035 /*** GLX_MESA_swap_control ***/
3036 GLX_FUNCTION2(glXSwapIntervalMESA
, __glXSwapIntervalMESA
),
3037 GLX_FUNCTION2(glXGetSwapIntervalMESA
, __glXGetSwapIntervalMESA
),
3039 /*** GLX_MESA_swap_frame_usage ***/
3040 GLX_FUNCTION2(glXBeginFrameTrackingMESA
, __glXBeginFrameTrackingMESA
),
3041 GLX_FUNCTION2(glXEndFrameTrackingMESA
, __glXEndFrameTrackingMESA
),
3042 GLX_FUNCTION2(glXGetFrameUsageMESA
, __glXGetFrameUsageMESA
),
3043 GLX_FUNCTION2(glXQueryFrameTrackingMESA
, __glXQueryFrameTrackingMESA
),
3045 /*** GLX_ARB_get_proc_address ***/
3046 GLX_FUNCTION(glXGetProcAddressARB
),
3049 GLX_FUNCTION2(glXGetProcAddress
, glXGetProcAddressARB
),
3051 /*** GLX_OML_sync_control ***/
3052 GLX_FUNCTION2(glXWaitForSbcOML
, __glXWaitForSbcOML
),
3053 GLX_FUNCTION2(glXWaitForMscOML
, __glXWaitForMscOML
),
3054 GLX_FUNCTION2(glXSwapBuffersMscOML
, __glXSwapBuffersMscOML
),
3055 GLX_FUNCTION2(glXGetMscRateOML
, __glXGetMscRateOML
),
3056 GLX_FUNCTION2(glXGetSyncValuesOML
, __glXGetSyncValuesOML
),
3058 /*** GLX_EXT_texture_from_pixmap ***/
3059 GLX_FUNCTION2(glXBindTexImageEXT
, __glXBindTexImageEXT
),
3060 GLX_FUNCTION2(glXReleaseTexImageEXT
, __glXReleaseTexImageEXT
),
3062 #ifdef GLX_DIRECT_RENDERING
3063 /*** DRI configuration ***/
3064 GLX_FUNCTION(glXGetScreenDriver
),
3065 GLX_FUNCTION(glXGetDriverConfig
),
3068 {NULL
, NULL
} /* end of list */
3072 static const GLvoid
*
3073 get_glx_proc_address(const char *funcName
)
3077 /* try static functions */
3078 for (i
= 0; GLX_functions
[i
].Name
; i
++) {
3079 if (strcmp(GLX_functions
[i
].Name
, funcName
) == 0)
3080 return GLX_functions
[i
].Address
;
3088 * Get the address of a named GL function. This is the pre-GLX 1.4 name for
3089 * \c glXGetProcAddress.
3091 * \param procName Name of a GL or GLX function.
3092 * \returns A pointer to the named function
3094 * \sa glXGetProcAddress
3096 PUBLIC
void (*glXGetProcAddressARB(const GLubyte
* procName
)) (void)
3098 typedef void (*gl_function
) (void);
3102 /* Search the table of GLX and internal functions first. If that
3103 * fails and the supplied name could be a valid core GL name, try
3104 * searching the core GL function table. This check is done to prevent
3105 * DRI based drivers from searching the core GL function table for
3106 * internal API functions.
3109 f
= (gl_function
) get_glx_proc_address((const char *) procName
);
3110 if ((f
== NULL
) && (procName
[0] == 'g') && (procName
[1] == 'l')
3111 && (procName
[2] != 'X')) {
3112 f
= (gl_function
) _glapi_get_proc_address((const char *) procName
);
3119 * Get the address of a named GL function. This is the GLX 1.4 name for
3120 * \c glXGetProcAddressARB.
3122 * \param procName Name of a GL or GLX function.
3123 * \returns A pointer to the named function
3125 * \sa glXGetProcAddressARB
3127 PUBLIC
void (*glXGetProcAddress(const GLubyte
* procName
)) (void)
3128 #if defined(__GNUC__) && !defined(GLX_ALIAS_UNSUPPORTED)
3129 __attribute__ ((alias("glXGetProcAddressARB")));
3132 return glXGetProcAddressARB(procName
);
3134 #endif /* __GNUC__ */
3137 #ifdef GLX_DIRECT_RENDERING
3139 * Get the unadjusted system time (UST). Currently, the UST is measured in
3140 * microseconds since Epoc. The actual resolution of the UST may vary from
3141 * system to system, and the units may vary from release to release.
3142 * Drivers should not call this function directly. They should instead use
3143 * \c glXGetProcAddress to obtain a pointer to the function.
3145 * \param ust Location to store the 64-bit UST
3146 * \returns Zero on success or a negative errno value on failure.
3148 * \sa glXGetProcAddress, PFNGLXGETUSTPROC
3150 * \since Internal API version 20030317.
3153 __glXGetUST(int64_t * ust
)
3161 if (gettimeofday(&tv
, NULL
) == 0) {
3162 ust
[0] = (tv
.tv_sec
* 1000000) + tv
.tv_usec
;
3169 #endif /* GLX_DIRECT_RENDERING */