2 * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
3 * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice including the dates of first publication and
13 * either this permission notice or a reference to
14 * http://oss.sgi.com/projects/FreeB/
15 * shall be included in all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
21 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
22 * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
25 * Except as contained in this notice, the name of Silicon Graphics, Inc.
26 * shall not be used in advertising or otherwise to promote the sale, use or
27 * other dealings in this Software without prior written authorization from
28 * Silicon Graphics, Inc.
33 * Client-side GLX interface.
36 #include "glxclient.h"
38 #include "glxextensions.h"
39 #include "glcontextmodes.h"
41 #ifdef GLX_DIRECT_RENDERING
42 #ifdef GLX_USE_APPLEGL
43 #include "apple_glx_context.h"
44 #include "apple_glx.h"
45 #include "glx_error.h"
46 #define GC_IS_DIRECT(gc) ((gc)->isDirect)
49 #include <X11/extensions/xf86vmode.h>
51 #define GC_IS_DIRECT(gc) ((gc)->driContext != NULL)
54 #define GC_IS_DIRECT(gc) (0)
58 #include <X11/Xlib-xcb.h>
63 static const char __glXGLXClientVendorName
[] = "Mesa Project and SGI";
64 static const char __glXGLXClientVersion
[] = "1.4";
65 static const struct glx_context_vtable indirect_context_vtable
;
67 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
69 static Bool windowExistsFlag
;
71 windowExistsErrorHandler(Display
* dpy
, XErrorEvent
* xerr
)
75 if (xerr
->error_code
== BadWindow
) {
76 windowExistsFlag
= GL_FALSE
;
82 * Find drawables in the local hash that have been destroyed on the
85 * \param dpy Display to destroy drawables for
86 * \param screen Screen number to destroy drawables for
89 GarbageCollectDRIDrawables(__GLXscreenConfigs
* sc
)
92 __GLXDRIdrawable
*pdraw
;
93 __GLXdisplayPrivate
*priv
= sc
->display
;
94 XWindowAttributes xwa
;
95 int (*oldXErrorHandler
) (Display
*, XErrorEvent
*);
97 /* Set no-op error handler so Xlib doesn't bail out if the windows
98 * has alreay been destroyed on the server. */
99 XSync(priv
->dpy
, GL_FALSE
);
100 oldXErrorHandler
= XSetErrorHandler(windowExistsErrorHandler
);
102 if (__glxHashFirst(priv
->drawHash
, &draw
, (void *) &pdraw
) == 1) {
104 windowExistsFlag
= GL_TRUE
;
105 XGetWindowAttributes(priv
->dpy
, draw
, &xwa
); /* dummy request */
106 if (!windowExistsFlag
) {
107 /* Destroy the local drawable data, if the drawable no
108 longer exists in the Xserver */
109 (*pdraw
->destroyDrawable
) (pdraw
);
110 __glxHashDelete(priv
->drawHash
, draw
);
112 } while (__glxHashNext(priv
->drawHash
, &draw
, (void *) &pdraw
) == 1);
115 XSync(priv
->dpy
, GL_FALSE
);
116 XSetErrorHandler(oldXErrorHandler
);
120 * Get the __DRIdrawable for the drawable associated with a GLXContext
122 * \param dpy The display associated with \c drawable.
123 * \param drawable GLXDrawable whose __DRIdrawable part is to be retrieved.
124 * \param scrn_num If non-NULL, the drawables screen is stored there
125 * \returns A pointer to the context's __DRIdrawable on success, or NULL if
126 * the drawable is not associated with a direct-rendering context.
128 _X_HIDDEN __GLXDRIdrawable
*
129 GetGLXDRIDrawable(Display
* dpy
, GLXDrawable drawable
)
131 __GLXdisplayPrivate
*priv
= __glXInitialize(dpy
);
132 __GLXDRIdrawable
*pdraw
;
137 if (__glxHashLookup(priv
->drawHash
, drawable
, (void *) &pdraw
) == 0)
147 * Get the GLX per-screen data structure associated with a GLX context.
149 * \param dpy Display for which the GLX per-screen information is to be
151 * \param scrn Screen on \c dpy for which the GLX per-screen information is
153 * \returns A pointer to the GLX per-screen data if \c dpy and \c scrn
154 * specify a valid GLX screen, or NULL otherwise.
156 * \todo Should this function validate that \c scrn is within the screen
157 * number range for \c dpy?
160 static __GLXscreenConfigs
*
161 GetGLXScreenConfigs(Display
* dpy
, int scrn
)
163 __GLXdisplayPrivate
*const priv
= __glXInitialize(dpy
);
166 && priv
->screenConfigs
!=
167 NULL
) ? priv
->screenConfigs
[scrn
] : NULL
;
172 GetGLXPrivScreenConfig(Display
* dpy
, int scrn
, __GLXdisplayPrivate
** ppriv
,
173 __GLXscreenConfigs
** ppsc
)
175 /* Initialize the extension, if needed . This has the added value
176 * of initializing/allocating the display private
180 return GLX_NO_EXTENSION
;
183 *ppriv
= __glXInitialize(dpy
);
184 if (*ppriv
== NULL
) {
185 return GLX_NO_EXTENSION
;
188 /* Check screen number to see if its valid */
189 if ((scrn
< 0) || (scrn
>= ScreenCount(dpy
))) {
190 return GLX_BAD_SCREEN
;
193 /* Check to see if the GL is supported on this screen */
194 *ppsc
= (*ppriv
)->screenConfigs
[scrn
];
195 if ((*ppsc
)->configs
== NULL
) {
196 /* No support for GL on this screen regardless of visual */
197 return GLX_BAD_VISUAL
;
205 * Determine if a \c GLXFBConfig supplied by the application is valid.
207 * \param dpy Application supplied \c Display pointer.
208 * \param config Application supplied \c GLXFBConfig.
210 * \returns If the \c GLXFBConfig is valid, the a pointer to the matching
211 * \c __GLcontextModes structure is returned. Otherwise, \c NULL
214 static __GLcontextModes
*
215 ValidateGLXFBConfig(Display
* dpy
, GLXFBConfig config
)
217 __GLXdisplayPrivate
*const priv
= __glXInitialize(dpy
);
218 const unsigned num_screens
= ScreenCount(dpy
);
220 const __GLcontextModes
*modes
;
224 for (i
= 0; i
< num_screens
; i
++) {
225 for (modes
= priv
->screenConfigs
[i
]->configs
; modes
!= NULL
;
226 modes
= modes
->next
) {
227 if (modes
== (__GLcontextModes
*) config
) {
228 return (__GLcontextModes
*) config
;
237 #ifdef GLX_USE_APPLEGL
239 static const struct glx_context_vtable applegl_context_vtable
;
242 applegl_create_context(__GLXscreenConfigs
*psc
,
243 const __GLcontextModes
*mode
,
244 GLXContext shareList
, int renderType
)
250 /* TODO: Integrate this with apple_glx_create_context and make
251 * struct apple_glx_context inherit from __GLXcontext. */
253 gc
= Xmalloc(sizeof *gc
);
257 memset(gc
, 0, sizeof *gc
);
258 if (!glx_context_init(&gc
->base
, &psc
->base
, mode
)) {
263 gc
->vtable
= &applegl_context_vtable
;
264 gc
->driContext
= NULL
;
265 gc
->do_destroy
= False
;
267 /* TODO: darwin: Integrate with above to do indirect */
268 if(apple_glx_create_context(&gc
->driContext
, dpy
, screen
, fbconfig
,
269 shareList
? shareList
->driContext
: NULL
,
270 &errorcode
, &x11error
)) {
271 __glXSendError(dpy
, errorcode
, 0, X_GLXCreateContext
, x11error
);
272 gc
->vtable
->destroy(gc
);
276 gc
->currentContextTag
= -1;
278 gc
->isDirect
= allowDirect
;
279 gc
->xid
= 1; /* Just something not None, so we know when to destroy
280 * it in MakeContextCurrent. */
288 * \todo It should be possible to move the allocate of \c client_state_private
289 * later in the function for direct-rendering contexts. Direct-rendering
290 * contexts don't need to track client state, so they don't need that memory
293 * \todo Eliminate \c __glXInitVertexArrayState. Replace it with a new
294 * function called \c __glXAllocateClientState that allocates the memory and
295 * does all the initialization (including the pixel pack / unpack).
298 indirect_create_context(__GLXscreenConfigs
*psc
,
299 const __GLcontextModes
*mode
,
300 GLXContext shareList
, int renderType
)
305 __GLXattribute
*state
;
307 opcode
= __glXSetupForCommand(psc
->dpy
);
312 /* Allocate our context record */
313 gc
= (GLXContext
) Xmalloc(sizeof(struct __GLXcontextRec
));
318 memset(gc
, 0, sizeof(struct __GLXcontextRec
));
320 glx_context_init(gc
, psc
, mode
);
321 gc
->isDirect
= GL_FALSE
;
322 gc
->vtable
= &indirect_context_vtable
;
323 state
= Xmalloc(sizeof(struct __GLXattributeRec
));
329 gc
->client_state_private
= state
;
330 memset(gc
->client_state_private
, 0, sizeof(struct __GLXattributeRec
));
331 state
->NoDrawArraysProtocol
= (getenv("LIBGL_NO_DRAWARRAYS") != NULL
);
334 ** Create a temporary buffer to hold GLX rendering commands. The size
335 ** of the buffer is selected so that the maximum number of GLX rendering
336 ** commands can fit in a single X packet and still have room in the X
337 ** packet for the GLXRenderReq header.
340 bufSize
= (XMaxRequestSize(psc
->dpy
) * 4) - sz_xGLXRenderReq
;
341 gc
->buf
= (GLubyte
*) Xmalloc(bufSize
);
343 Xfree(gc
->client_state_private
);
347 gc
->bufSize
= bufSize
;
349 /* Fill in the new context */
350 gc
->renderMode
= GL_RENDER
;
352 state
->storePack
.alignment
= 4;
353 state
->storeUnpack
.alignment
= 4;
355 gc
->attributes
.stackPointer
= &gc
->attributes
.stack
[0];
358 ** PERFORMANCE NOTE: A mode dependent fill image can speed things up.
359 ** Other code uses the fastImageUnpack bit, but it is never set
362 gc
->fastImageUnpack
= GL_FALSE
;
363 gc
->fillImage
= __glFillImage
;
365 gc
->bufEnd
= gc
->buf
+ bufSize
;
366 gc
->isDirect
= GL_FALSE
;
369 ** Set limit register so that there will be one command per packet
374 gc
->limit
= gc
->buf
+ bufSize
- __GLX_BUFFER_LIMIT_SIZE
;
376 gc
->majorOpcode
= opcode
;
379 ** Constrain the maximum drawing command size allowed to be
380 ** transfered using the X_GLXRender protocol request. First
381 ** constrain by a software limit, then constrain by the protocl
384 if (bufSize
> __GLX_RENDER_CMD_SIZE_LIMIT
) {
385 bufSize
= __GLX_RENDER_CMD_SIZE_LIMIT
;
387 if (bufSize
> __GLX_MAX_RENDER_CMD_SIZE
) {
388 bufSize
= __GLX_MAX_RENDER_CMD_SIZE
;
390 gc
->maxSmallRenderCommandSize
= bufSize
;
396 struct glx_screen_vtable indirect_screen_vtable
= {
397 indirect_create_context
400 _X_HIDDEN __GLXscreenConfigs
*
401 indirect_create_screen(int screen
, __GLXdisplayPrivate
* priv
)
403 __GLXscreenConfigs
*psc
;
405 psc
= Xmalloc(sizeof *psc
);
409 memset(psc
, 0, sizeof *psc
);
410 glx_screen_init(psc
, screen
, priv
);
411 psc
->vtable
= &indirect_screen_vtable
;
418 glx_context_init(__GLXcontext
*gc
,
419 __GLXscreenConfigs
*psc
, const __GLcontextModes
*fbconfig
)
421 gc
->majorOpcode
= __glXSetupForCommand(psc
->display
->dpy
);
422 if (!gc
->majorOpcode
)
425 gc
->screen
= psc
->scr
;
428 gc
->isDirect
= GL_TRUE
;
435 * Create a new context. Exactly one of \c vis and \c fbconfig should be
438 * \param use_glx_1_3 For FBConfigs, should GLX 1.3 protocol or
439 * SGIX_fbconfig protocol be used?
440 * \param renderType For FBConfigs, what is the rendering type?
444 CreateContext(Display
* dpy
, int generic_id
,
445 const __GLcontextModes
* const fbconfig
,
446 GLXContext shareList
,
448 unsigned code
, int renderType
, int screen
)
450 GLXContext gc
= NULL
;
451 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, screen
);
456 if (generic_id
== None
)
460 if (allowDirect
&& psc
->vtable
->create_context
)
461 gc
= psc
->vtable
->create_context(psc
, fbconfig
,
462 shareList
, renderType
);
464 gc
= indirect_create_context(psc
, fbconfig
, shareList
, renderType
);
470 case X_GLXCreateContext
: {
471 xGLXCreateContextReq
*req
;
473 /* Send the glXCreateContext request */
474 GetReq(GLXCreateContext
, req
);
475 req
->reqType
= gc
->majorOpcode
;
476 req
->glxCode
= X_GLXCreateContext
;
477 req
->context
= gc
->xid
= XAllocID(dpy
);
478 req
->visual
= generic_id
;
479 req
->screen
= screen
;
480 req
->shareList
= shareList
? shareList
->xid
: None
;
481 req
->isDirect
= GC_IS_DIRECT(gc
);
485 case X_GLXCreateNewContext
: {
486 xGLXCreateNewContextReq
*req
;
488 /* Send the glXCreateNewContext request */
489 GetReq(GLXCreateNewContext
, req
);
490 req
->reqType
= gc
->majorOpcode
;
491 req
->glxCode
= X_GLXCreateNewContext
;
492 req
->context
= gc
->xid
= XAllocID(dpy
);
493 req
->fbconfig
= generic_id
;
494 req
->screen
= screen
;
495 req
->renderType
= renderType
;
496 req
->shareList
= shareList
? shareList
->xid
: None
;
497 req
->isDirect
= GC_IS_DIRECT(gc
);
501 case X_GLXvop_CreateContextWithConfigSGIX
: {
502 xGLXVendorPrivateWithReplyReq
*vpreq
;
503 xGLXCreateContextWithConfigSGIXReq
*req
;
505 /* Send the glXCreateNewContext request */
506 GetReqExtra(GLXVendorPrivateWithReply
,
507 sz_xGLXCreateContextWithConfigSGIXReq
-
508 sz_xGLXVendorPrivateWithReplyReq
, vpreq
);
509 req
= (xGLXCreateContextWithConfigSGIXReq
*) vpreq
;
510 req
->reqType
= gc
->majorOpcode
;
511 req
->glxCode
= X_GLXVendorPrivateWithReply
;
512 req
->vendorCode
= X_GLXvop_CreateContextWithConfigSGIX
;
513 req
->context
= gc
->xid
= XAllocID(dpy
);
514 req
->fbconfig
= generic_id
;
515 req
->screen
= screen
;
516 req
->renderType
= renderType
;
517 req
->shareList
= shareList
? shareList
->xid
: None
;
518 req
->isDirect
= GC_IS_DIRECT(gc
);
523 /* What to do here? This case is the sign of an internal error. It
524 * should never be reachable.
532 gc
->imported
= GL_FALSE
;
533 gc
->renderType
= renderType
;
539 glXCreateContext(Display
* dpy
, XVisualInfo
* vis
,
540 GLXContext shareList
, Bool allowDirect
)
542 const __GLcontextModes
*mode
= NULL
;
545 #if defined(GLX_DIRECT_RENDERING) || defined(GLX_USE_APPLEGL)
546 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, vis
->screen
);
548 mode
= _gl_context_modes_find_visual(psc
->visuals
, vis
->visualid
);
552 error
.errorCode
= BadValue
;
553 error
.resourceID
= vis
->visualid
;
554 error
.sequenceNumber
= dpy
->request
;
555 error
.type
= X_Error
;
556 error
.majorCode
= __glXSetupForCommand(dpy
);
557 error
.minorCode
= X_GLXCreateContext
;
558 _XError(dpy
, &error
);
562 renderType
= mode
->rgbMode
? GLX_RGBA_TYPE
: GLX_COLOR_INDEX_TYPE
;
565 return CreateContext(dpy
, vis
->visualid
, mode
, shareList
, allowDirect
,
566 X_GLXCreateContext
, renderType
, vis
->screen
);
570 glx_send_destroy_context(Display
*dpy
, XID xid
)
572 CARD8 opcode
= __glXSetupForCommand(dpy
);
573 xGLXDestroyContextReq
*req
;
576 GetReq(GLXDestroyContext
, req
);
577 req
->reqType
= opcode
;
578 req
->glxCode
= X_GLXDestroyContext
;
585 indirect_destroy_context(__GLXcontext
*gc
)
587 if (!gc
->imported
&& gc
->xid
)
588 glx_send_destroy_context(gc
->psc
->dpy
, gc
->xid
);
590 __glXFreeVertexArrayState(gc
);
593 XFree((char *) gc
->vendor
);
595 XFree((char *) gc
->renderer
);
597 XFree((char *) gc
->version
);
599 XFree((char *) gc
->extensions
);
600 __glFreeAttributeState(gc
);
601 XFree((char *) gc
->buf
);
602 Xfree((char *) gc
->client_state_private
);
607 ** Destroy the named context
610 DestroyContext(Display
* dpy
, GLXContext gc
)
616 if (gc
->currentDpy
) {
617 /* This context is bound to some thread. According to the man page,
618 * we should not actually delete the context until it's unbound.
619 * Note that we set gc->xid = None above. In MakeContextCurrent()
620 * we check for that and delete the context there.
623 glx_send_destroy_context(dpy
, gc
->xid
);
630 if (gc
->vtable
->destroy
)
631 gc
->vtable
->destroy(gc
);
635 glXDestroyContext(Display
* dpy
, GLXContext gc
)
637 DestroyContext(dpy
, gc
);
641 ** Return the major and minor version #s for the GLX extension
644 glXQueryVersion(Display
* dpy
, int *major
, int *minor
)
646 __GLXdisplayPrivate
*priv
;
648 /* Init the extension. This fetches the major and minor version. */
649 priv
= __glXInitialize(dpy
);
654 *major
= priv
->majorVersion
;
656 *minor
= priv
->minorVersion
;
661 ** Query the existance of the GLX extension
664 glXQueryExtension(Display
* dpy
, int *errorBase
, int *eventBase
)
666 int major_op
, erb
, evb
;
669 rv
= XQueryExtension(dpy
, GLX_EXTENSION_NAME
, &major_op
, &evb
, &erb
);
680 indirect_wait_gl(__GLXcontext
*gc
)
683 Display
*dpy
= gc
->currentDpy
;
685 /* Flush any pending commands out */
686 __glXFlushRenderBuffer(gc
, gc
->pc
);
688 /* Send the glXWaitGL request */
690 GetReq(GLXWaitGL
, req
);
691 req
->reqType
= gc
->majorOpcode
;
692 req
->glxCode
= X_GLXWaitGL
;
693 req
->contextTag
= gc
->currentContextTag
;
699 ** Put a barrier in the token stream that forces the GL to finish its
700 ** work before X can proceed.
705 GLXContext gc
= __glXGetCurrentContext();
707 if (gc
&& gc
->vtable
->use_x_font
)
708 gc
->vtable
->wait_gl(gc
);
712 indirect_wait_x(__GLXcontext
*gc
)
715 Display
*dpy
= gc
->currentDpy
;
717 /* Flush any pending commands out */
718 __glXFlushRenderBuffer(gc
, gc
->pc
);
721 GetReq(GLXWaitX
, req
);
722 req
->reqType
= gc
->majorOpcode
;
723 req
->glxCode
= X_GLXWaitX
;
724 req
->contextTag
= gc
->currentContextTag
;
730 ** Put a barrier in the token stream that forces X to finish its
731 ** work before GL can proceed.
736 GLXContext gc
= __glXGetCurrentContext();
738 if (gc
&& gc
->vtable
->use_x_font
)
739 gc
->vtable
->wait_x(gc
);
743 indirect_use_x_font(__GLXcontext
*gc
,
744 Font font
, int first
, int count
, int listBase
)
746 xGLXUseXFontReq
*req
;
747 Display
*dpy
= gc
->currentDpy
;
749 /* Flush any pending commands out */
750 __glXFlushRenderBuffer(gc
, gc
->pc
);
752 /* Send the glXUseFont request */
754 GetReq(GLXUseXFont
, req
);
755 req
->reqType
= gc
->majorOpcode
;
756 req
->glxCode
= X_GLXUseXFont
;
757 req
->contextTag
= gc
->currentContextTag
;
761 req
->listBase
= listBase
;
766 #ifdef GLX_USE_APPLEGL
769 applegl_destroy_context(__GLXcontext
*gc
)
771 apple_glx_destroy_context(&gc
->driContext
, gc
->currentDpy
);
775 applegl_wait_gl(__GLXcontext
*gc
)
781 applegl_wait_x(__GLXcontext
*gc
)
783 apple_glx_waitx(gc
->dpy
, gc
->driContext
);
786 static const struct glx_context_vtable applegl_context_vtable
= {
787 applegl_destroy_context
,
791 NULL
, /* bind_tex_image, */
792 NULL
, /* release_tex_image, */
798 glXUseXFont(Font font
, int first
, int count
, int listBase
)
800 GLXContext gc
= __glXGetCurrentContext();
802 if (gc
&& gc
->vtable
->use_x_font
)
803 gc
->vtable
->use_x_font(gc
, font
, first
, count
, listBase
);
806 /************************************************************************/
809 ** Copy the source context to the destination context using the
813 glXCopyContext(Display
* dpy
, GLXContext source
,
814 GLXContext dest
, unsigned long mask
)
816 #ifdef GLX_USE_APPLEGL
817 GLXContext gc
= __glXGetCurrentContext();
821 if(apple_glx_copy_context(gc
->driContext
, source
->driContext
, dest
->driContext
,
822 mask
, &errorcode
, &x11error
)) {
823 __glXSendError(dpy
, errorcode
, 0, X_GLXCopyContext
, x11error
);
827 xGLXCopyContextReq
*req
;
828 GLXContext gc
= __glXGetCurrentContext();
832 opcode
= __glXSetupForCommand(dpy
);
837 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
838 if (gc
->driContext
) {
839 /* NOT_DONE: This does not work yet */
844 ** If the source is the current context, send its tag so that the context
845 ** can be flushed before the copy.
847 if (source
== gc
&& dpy
== gc
->currentDpy
) {
848 tag
= gc
->currentContextTag
;
854 /* Send the glXCopyContext request */
856 GetReq(GLXCopyContext
, req
);
857 req
->reqType
= opcode
;
858 req
->glxCode
= X_GLXCopyContext
;
859 req
->source
= source
? source
->xid
: None
;
860 req
->dest
= dest
? dest
->xid
: None
;
862 req
->contextTag
= tag
;
865 #endif /* GLX_USE_APPLEGL */
870 * Determine if a context uses direct rendering.
872 * \param dpy Display where the context was created.
873 * \param contextID ID of the context to be tested.
875 * \returns \c GL_TRUE if the context is direct rendering or not.
878 __glXIsDirect(Display
* dpy
, GLXContextID contextID
)
880 #if !defined(USE_XCB)
881 xGLXIsDirectReq
*req
;
882 xGLXIsDirectReply reply
;
886 opcode
= __glXSetupForCommand(dpy
);
892 xcb_connection_t
*c
= XGetXCBConnection(dpy
);
893 xcb_glx_is_direct_reply_t
*reply
= xcb_glx_is_direct_reply(c
,
898 const Bool is_direct
= reply
->is_direct
? True
: False
;
903 /* Send the glXIsDirect request */
905 GetReq(GLXIsDirect
, req
);
906 req
->reqType
= opcode
;
907 req
->glxCode
= X_GLXIsDirect
;
908 req
->context
= contextID
;
909 _XReply(dpy
, (xReply
*) & reply
, 0, False
);
913 return reply
.isDirect
;
919 * Shouldn't this function \b always return \c GL_FALSE when
920 * \c GLX_DIRECT_RENDERING is not defined? Do we really need to bother with
921 * the GLX protocol here at all?
924 glXIsDirect(Display
* dpy
, GLXContext gc
)
929 else if (GC_IS_DIRECT(gc
)) {
932 #ifdef GLX_USE_APPLEGL /* TODO: indirect on darwin */
935 return __glXIsDirect(dpy
, gc
->xid
);
940 glXCreateGLXPixmap(Display
* dpy
, XVisualInfo
* vis
, Pixmap pixmap
)
942 #ifdef GLX_USE_APPLEGL
943 int screen
= vis
->screen
;
944 __GLXscreenConfigs
*const psc
= GetGLXScreenConfigs(dpy
, screen
);
945 const __GLcontextModes
*modes
;
947 modes
= _gl_context_modes_find_visual(psc
->visuals
, vis
->visualid
);
949 if(apple_glx_pixmap_create(dpy
, vis
->screen
, pixmap
, modes
))
954 xGLXCreateGLXPixmapReq
*req
;
958 opcode
= __glXSetupForCommand(dpy
);
963 /* Send the glXCreateGLXPixmap request */
965 GetReq(GLXCreateGLXPixmap
, req
);
966 req
->reqType
= opcode
;
967 req
->glxCode
= X_GLXCreateGLXPixmap
;
968 req
->screen
= vis
->screen
;
969 req
->visual
= vis
->visualid
;
970 req
->pixmap
= pixmap
;
971 req
->glxpixmap
= xid
= XAllocID(dpy
);
975 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
977 /* FIXME: Maybe delay __DRIdrawable creation until the drawable
978 * is actually bound to a context... */
980 __GLXdisplayPrivate
*const priv
= __glXInitialize(dpy
);
981 __GLXDRIdrawable
*pdraw
;
982 __GLXscreenConfigs
*psc
;
983 __GLcontextModes
*modes
;
985 psc
= priv
->screenConfigs
[vis
->screen
];
986 if (psc
->driScreen
== NULL
)
988 modes
= _gl_context_modes_find_visual(psc
->visuals
, vis
->visualid
);
989 pdraw
= psc
->driScreen
->createDrawable(psc
, pixmap
, req
->glxpixmap
, modes
);
991 fprintf(stderr
, "failed to create pixmap\n");
995 if (__glxHashInsert(priv
->drawHash
, req
->glxpixmap
, pdraw
)) {
996 (*pdraw
->destroyDrawable
) (pdraw
);
997 return None
; /* FIXME: Check what we're supposed to do here... */
1007 ** Destroy the named pixmap
1010 glXDestroyGLXPixmap(Display
* dpy
, GLXPixmap glxpixmap
)
1012 #ifdef GLX_USE_APPLEGL
1013 if(apple_glx_pixmap_destroy(dpy
, glxpixmap
))
1014 __glXSendError(dpy
, GLXBadPixmap
, glxpixmap
, X_GLXDestroyPixmap
, false);
1016 xGLXDestroyGLXPixmapReq
*req
;
1019 opcode
= __glXSetupForCommand(dpy
);
1024 /* Send the glXDestroyGLXPixmap request */
1026 GetReq(GLXDestroyGLXPixmap
, req
);
1027 req
->reqType
= opcode
;
1028 req
->glxCode
= X_GLXDestroyGLXPixmap
;
1029 req
->glxpixmap
= glxpixmap
;
1033 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
1035 __GLXdisplayPrivate
*const priv
= __glXInitialize(dpy
);
1036 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, glxpixmap
);
1038 if (pdraw
!= NULL
) {
1039 (*pdraw
->destroyDrawable
) (pdraw
);
1040 __glxHashDelete(priv
->drawHash
, glxpixmap
);
1044 #endif /* GLX_USE_APPLEGL */
1048 glXSwapBuffers(Display
* dpy
, GLXDrawable drawable
)
1050 #ifdef GLX_USE_APPLEGL
1051 GLXContext gc
= glXGetCurrentContext();
1052 if(gc
&& apple_glx_is_current_drawable(dpy
, gc
->driContext
, drawable
)) {
1053 apple_glx_swap_buffers(gc
->driContext
);
1055 __glXSendError(dpy
, GLXBadCurrentWindow
, 0, X_GLXSwapBuffers
, false);
1062 xcb_connection_t
*c
;
1064 xGLXSwapBuffersReq
*req
;
1067 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
1068 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
);
1070 if (pdraw
!= NULL
) {
1072 (*pdraw
->psc
->driScreen
->swapBuffers
)(pdraw
, 0, 0, 0);
1077 opcode
= __glXSetupForCommand(dpy
);
1083 ** The calling thread may or may not have a current context. If it
1084 ** does, send the context tag so the server can do a flush.
1086 gc
= __glXGetCurrentContext();
1087 if ((gc
!= NULL
) && (dpy
== gc
->currentDpy
) &&
1088 ((drawable
== gc
->currentDrawable
)
1089 || (drawable
== gc
->currentReadable
))) {
1090 tag
= gc
->currentContextTag
;
1097 c
= XGetXCBConnection(dpy
);
1098 xcb_glx_swap_buffers(c
, tag
, drawable
);
1101 /* Send the glXSwapBuffers request */
1103 GetReq(GLXSwapBuffers
, req
);
1104 req
->reqType
= opcode
;
1105 req
->glxCode
= X_GLXSwapBuffers
;
1106 req
->drawable
= drawable
;
1107 req
->contextTag
= tag
;
1111 #endif /* USE_XCB */
1112 #endif /* GLX_USE_APPLEGL */
1117 ** Return configuration information for the given display, screen and
1118 ** visual combination.
1121 glXGetConfig(Display
* dpy
, XVisualInfo
* vis
, int attribute
,
1124 __GLXdisplayPrivate
*priv
;
1125 __GLXscreenConfigs
*psc
;
1126 __GLcontextModes
*modes
;
1129 status
= GetGLXPrivScreenConfig(dpy
, vis
->screen
, &priv
, &psc
);
1130 if (status
== Success
) {
1131 modes
= _gl_context_modes_find_visual(psc
->visuals
, vis
->visualid
);
1133 /* Lookup attribute after first finding a match on the visual */
1134 if (modes
!= NULL
) {
1135 return _gl_get_context_mode_data(modes
, attribute
, value_return
);
1138 status
= GLX_BAD_VISUAL
;
1142 ** If we can't find the config for this visual, this visual is not
1143 ** supported by the OpenGL implementation on the server.
1145 if ((status
== GLX_BAD_VISUAL
) && (attribute
== GLX_USE_GL
)) {
1146 *value_return
= GL_FALSE
;
1153 /************************************************************************/
1156 init_fbconfig_for_chooser(__GLcontextModes
* config
,
1157 GLboolean fbconfig_style_tags
)
1159 memset(config
, 0, sizeof(__GLcontextModes
));
1160 config
->visualID
= (XID
) GLX_DONT_CARE
;
1161 config
->visualType
= GLX_DONT_CARE
;
1163 /* glXChooseFBConfig specifies different defaults for these two than
1166 if (fbconfig_style_tags
) {
1167 config
->rgbMode
= GL_TRUE
;
1168 config
->doubleBufferMode
= GLX_DONT_CARE
;
1171 config
->visualRating
= GLX_DONT_CARE
;
1172 config
->transparentPixel
= GLX_NONE
;
1173 config
->transparentRed
= GLX_DONT_CARE
;
1174 config
->transparentGreen
= GLX_DONT_CARE
;
1175 config
->transparentBlue
= GLX_DONT_CARE
;
1176 config
->transparentAlpha
= GLX_DONT_CARE
;
1177 config
->transparentIndex
= GLX_DONT_CARE
;
1179 config
->drawableType
= GLX_WINDOW_BIT
;
1180 config
->renderType
=
1181 (config
->rgbMode
) ? GLX_RGBA_BIT
: GLX_COLOR_INDEX_BIT
;
1182 config
->xRenderable
= GLX_DONT_CARE
;
1183 config
->fbconfigID
= (GLXFBConfigID
) (GLX_DONT_CARE
);
1185 config
->swapMethod
= GLX_DONT_CARE
;
1188 #define MATCH_DONT_CARE( param ) \
1190 if ( ((int) a-> param != (int) GLX_DONT_CARE) \
1191 && (a-> param != b-> param) ) { \
1196 #define MATCH_MINIMUM( param ) \
1198 if ( ((int) a-> param != (int) GLX_DONT_CARE) \
1199 && (a-> param > b-> param) ) { \
1204 #define MATCH_EXACT( param ) \
1206 if ( a-> param != b-> param) { \
1211 /* Test that all bits from a are contained in b */
1212 #define MATCH_MASK(param) \
1214 if ((a->param & ~b->param) != 0) \
1219 * Determine if two GLXFBConfigs are compatible.
1221 * \param a Application specified config to test.
1222 * \param b Server specified config to test against \c a.
1225 fbconfigs_compatible(const __GLcontextModes
* const a
,
1226 const __GLcontextModes
* const b
)
1228 MATCH_DONT_CARE(doubleBufferMode
);
1229 MATCH_DONT_CARE(visualType
);
1230 MATCH_DONT_CARE(visualRating
);
1231 MATCH_DONT_CARE(xRenderable
);
1232 MATCH_DONT_CARE(fbconfigID
);
1233 MATCH_DONT_CARE(swapMethod
);
1235 MATCH_MINIMUM(rgbBits
);
1236 MATCH_MINIMUM(numAuxBuffers
);
1237 MATCH_MINIMUM(redBits
);
1238 MATCH_MINIMUM(greenBits
);
1239 MATCH_MINIMUM(blueBits
);
1240 MATCH_MINIMUM(alphaBits
);
1241 MATCH_MINIMUM(depthBits
);
1242 MATCH_MINIMUM(stencilBits
);
1243 MATCH_MINIMUM(accumRedBits
);
1244 MATCH_MINIMUM(accumGreenBits
);
1245 MATCH_MINIMUM(accumBlueBits
);
1246 MATCH_MINIMUM(accumAlphaBits
);
1247 MATCH_MINIMUM(sampleBuffers
);
1248 MATCH_MINIMUM(maxPbufferWidth
);
1249 MATCH_MINIMUM(maxPbufferHeight
);
1250 MATCH_MINIMUM(maxPbufferPixels
);
1251 MATCH_MINIMUM(samples
);
1253 MATCH_DONT_CARE(stereoMode
);
1256 MATCH_MASK(drawableType
);
1257 MATCH_MASK(renderType
);
1259 /* There is a bug in a few of the XFree86 DDX drivers. They contain
1260 * visuals with a "transparent type" of 0 when they really mean GLX_NONE.
1261 * Technically speaking, it is a bug in the DDX driver, but there is
1262 * enough of an installed base to work around the problem here. In any
1263 * case, 0 is not a valid value of the transparent type, so we'll treat 0
1264 * from the app as GLX_DONT_CARE. We'll consider GLX_NONE from the app and
1265 * 0 from the server to be a match to maintain backward compatibility with
1266 * the (broken) drivers.
1269 if (a
->transparentPixel
!= (int) GLX_DONT_CARE
&& a
->transparentPixel
!= 0) {
1270 if (a
->transparentPixel
== GLX_NONE
) {
1271 if (b
->transparentPixel
!= GLX_NONE
&& b
->transparentPixel
!= 0)
1275 MATCH_EXACT(transparentPixel
);
1278 switch (a
->transparentPixel
) {
1279 case GLX_TRANSPARENT_RGB
:
1280 MATCH_DONT_CARE(transparentRed
);
1281 MATCH_DONT_CARE(transparentGreen
);
1282 MATCH_DONT_CARE(transparentBlue
);
1283 MATCH_DONT_CARE(transparentAlpha
);
1286 case GLX_TRANSPARENT_INDEX
:
1287 MATCH_DONT_CARE(transparentIndex
);
1299 /* There's some trickly language in the GLX spec about how this is supposed
1300 * to work. Basically, if a given component size is either not specified
1301 * or the requested size is zero, it is supposed to act like PERFER_SMALLER.
1302 * Well, that's really hard to do with the code as-is. This behavior is
1303 * closer to correct, but still not technically right.
1305 #define PREFER_LARGER_OR_ZERO(comp) \
1307 if ( ((*a)-> comp) != ((*b)-> comp) ) { \
1308 if ( ((*a)-> comp) == 0 ) { \
1311 else if ( ((*b)-> comp) == 0 ) { \
1315 return ((*b)-> comp) - ((*a)-> comp) ; \
1320 #define PREFER_LARGER(comp) \
1322 if ( ((*a)-> comp) != ((*b)-> comp) ) { \
1323 return ((*b)-> comp) - ((*a)-> comp) ; \
1327 #define PREFER_SMALLER(comp) \
1329 if ( ((*a)-> comp) != ((*b)-> comp) ) { \
1330 return ((*a)-> comp) - ((*b)-> comp) ; \
1335 * Compare two GLXFBConfigs. This function is intended to be used as the
1336 * compare function passed in to qsort.
1338 * \returns If \c a is a "better" config, according to the specification of
1339 * SGIX_fbconfig, a number less than zero is returned. If \c b is
1340 * better, then a number greater than zero is return. If both are
1341 * equal, zero is returned.
1342 * \sa qsort, glXChooseVisual, glXChooseFBConfig, glXChooseFBConfigSGIX
1345 fbconfig_compare(const __GLcontextModes
* const *const a
,
1346 const __GLcontextModes
* const *const b
)
1348 /* The order of these comparisons must NOT change. It is defined by
1349 * the GLX 1.3 spec and ARB_multisample.
1352 PREFER_SMALLER(visualSelectGroup
);
1354 /* The sort order for the visualRating is GLX_NONE, GLX_SLOW, and
1355 * GLX_NON_CONFORMANT_CONFIG. It just so happens that this is the
1356 * numerical sort order of the enums (0x8000, 0x8001, and 0x800D).
1358 PREFER_SMALLER(visualRating
);
1360 /* This isn't quite right. It is supposed to compare the sum of the
1361 * components the user specifically set minimums for.
1363 PREFER_LARGER_OR_ZERO(redBits
);
1364 PREFER_LARGER_OR_ZERO(greenBits
);
1365 PREFER_LARGER_OR_ZERO(blueBits
);
1366 PREFER_LARGER_OR_ZERO(alphaBits
);
1368 PREFER_SMALLER(rgbBits
);
1370 if (((*a
)->doubleBufferMode
!= (*b
)->doubleBufferMode
)) {
1371 /* Prefer single-buffer.
1373 return (!(*a
)->doubleBufferMode
) ? -1 : 1;
1376 PREFER_SMALLER(numAuxBuffers
);
1378 PREFER_LARGER_OR_ZERO(depthBits
);
1379 PREFER_SMALLER(stencilBits
);
1381 /* This isn't quite right. It is supposed to compare the sum of the
1382 * components the user specifically set minimums for.
1384 PREFER_LARGER_OR_ZERO(accumRedBits
);
1385 PREFER_LARGER_OR_ZERO(accumGreenBits
);
1386 PREFER_LARGER_OR_ZERO(accumBlueBits
);
1387 PREFER_LARGER_OR_ZERO(accumAlphaBits
);
1389 PREFER_SMALLER(visualType
);
1391 /* None of the multisample specs say where this comparison should happen,
1392 * so I put it near the end.
1394 PREFER_SMALLER(sampleBuffers
);
1395 PREFER_SMALLER(samples
);
1397 /* None of the pbuffer or fbconfig specs say that this comparison needs
1398 * to happen at all, but it seems like it should.
1400 PREFER_LARGER(maxPbufferWidth
);
1401 PREFER_LARGER(maxPbufferHeight
);
1402 PREFER_LARGER(maxPbufferPixels
);
1409 * Selects and sorts a subset of the supplied configs based on the attributes.
1410 * This function forms to basis of \c glXChooseVisual, \c glXChooseFBConfig,
1411 * and \c glXChooseFBConfigSGIX.
1413 * \param configs Array of pointers to possible configs. The elements of
1414 * this array that do not meet the criteria will be set to
1415 * NULL. The remaining elements will be sorted according to
1416 * the various visual / FBConfig selection rules.
1417 * \param num_configs Number of elements in the \c configs array.
1418 * \param attribList Attributes used select from \c configs. This array is
1419 * terminated by a \c None tag. The array can either take
1420 * the form expected by \c glXChooseVisual (where boolean
1421 * tags do not have a value) or by \c glXChooseFBConfig
1422 * (where every tag has a value).
1423 * \param fbconfig_style_tags Selects whether \c attribList is in
1424 * \c glXChooseVisual style or
1425 * \c glXChooseFBConfig style.
1426 * \returns The number of valid elements left in \c configs.
1428 * \sa glXChooseVisual, glXChooseFBConfig, glXChooseFBConfigSGIX
1431 choose_visual(__GLcontextModes
** configs
, int num_configs
,
1432 const int *attribList
, GLboolean fbconfig_style_tags
)
1434 __GLcontextModes test_config
;
1438 /* This is a fairly direct implementation of the selection method
1439 * described by GLX_SGIX_fbconfig. Start by culling out all the
1440 * configs that are not compatible with the selected parameter
1444 init_fbconfig_for_chooser(&test_config
, fbconfig_style_tags
);
1445 __glXInitializeVisualConfigFromTags(&test_config
, 512,
1446 (const INT32
*) attribList
,
1447 GL_TRUE
, fbconfig_style_tags
);
1450 for (i
= 0; i
< num_configs
; i
++) {
1451 if (fbconfigs_compatible(&test_config
, configs
[i
])) {
1452 configs
[base
] = configs
[i
];
1461 if (base
< num_configs
) {
1462 (void) memset(&configs
[base
], 0, sizeof(void *) * (num_configs
- base
));
1465 /* After the incompatible configs are removed, the resulting
1466 * list is sorted according to the rules set out in the various
1470 qsort(configs
, base
, sizeof(__GLcontextModes
*),
1471 (int (*)(const void *, const void *)) fbconfig_compare
);
1479 ** Return the visual that best matches the template. Return None if no
1480 ** visual matches the template.
1482 PUBLIC XVisualInfo
*
1483 glXChooseVisual(Display
* dpy
, int screen
, int *attribList
)
1485 XVisualInfo
*visualList
= NULL
;
1486 __GLXdisplayPrivate
*priv
;
1487 __GLXscreenConfigs
*psc
;
1488 __GLcontextModes test_config
;
1489 __GLcontextModes
*modes
;
1490 const __GLcontextModes
*best_config
= NULL
;
1493 ** Get a list of all visuals, return if list is empty
1495 if (GetGLXPrivScreenConfig(dpy
, screen
, &priv
, &psc
) != Success
) {
1501 ** Build a template from the defaults and the attribute list
1502 ** Free visual list and return if an unexpected token is encountered
1504 init_fbconfig_for_chooser(&test_config
, GL_FALSE
);
1505 __glXInitializeVisualConfigFromTags(&test_config
, 512,
1506 (const INT32
*) attribList
,
1510 ** Eliminate visuals that don't meet minimum requirements
1511 ** Compute a score for those that do
1512 ** Remember which visual, if any, got the highest score
1513 ** If no visual is acceptable, return None
1514 ** Otherwise, create an XVisualInfo list with just the selected X visual
1517 for (modes
= psc
->visuals
; modes
!= NULL
; modes
= modes
->next
) {
1518 if (fbconfigs_compatible(&test_config
, modes
)
1519 && ((best_config
== NULL
)
1522 ((const __GLcontextModes
* const *const) &modes
,
1523 &best_config
) < 0))) {
1524 XVisualInfo visualTemplate
;
1525 XVisualInfo
*newList
;
1528 visualTemplate
.screen
= screen
;
1529 visualTemplate
.visualid
= modes
->visualID
;
1530 newList
= XGetVisualInfo(dpy
, VisualScreenMask
| VisualIDMask
,
1531 &visualTemplate
, &i
);
1535 visualList
= newList
;
1536 best_config
= modes
;
1541 #ifdef GLX_USE_APPLEGL
1542 if(visualList
&& getenv("LIBGL_DUMP_VISUALID")) {
1543 printf("visualid 0x%lx\n", visualList
[0].visualid
);
1552 glXQueryExtensionsString(Display
* dpy
, int screen
)
1554 __GLXscreenConfigs
*psc
;
1555 __GLXdisplayPrivate
*priv
;
1557 if (GetGLXPrivScreenConfig(dpy
, screen
, &priv
, &psc
) != Success
) {
1561 if (!psc
->effectiveGLXexts
) {
1562 if (!psc
->serverGLXexts
) {
1563 psc
->serverGLXexts
=
1564 __glXQueryServerString(dpy
, priv
->majorOpcode
, screen
,
1568 __glXCalculateUsableExtensions(psc
,
1569 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
1570 (psc
->driScreen
!= NULL
),
1574 priv
->minorVersion
);
1577 return psc
->effectiveGLXexts
;
1581 glXGetClientString(Display
* dpy
, int name
)
1587 return (__glXGLXClientVendorName
);
1589 return (__glXGLXClientVersion
);
1590 case GLX_EXTENSIONS
:
1591 return (__glXGetClientExtensions());
1598 glXQueryServerString(Display
* dpy
, int screen
, int name
)
1600 __GLXscreenConfigs
*psc
;
1601 __GLXdisplayPrivate
*priv
;
1605 if (GetGLXPrivScreenConfig(dpy
, screen
, &priv
, &psc
) != Success
) {
1611 str
= &priv
->serverGLXvendor
;
1614 str
= &priv
->serverGLXversion
;
1616 case GLX_EXTENSIONS
:
1617 str
= &psc
->serverGLXexts
;
1624 *str
= __glXQueryServerString(dpy
, priv
->majorOpcode
, screen
, name
);
1631 __glXClientInfo(Display
* dpy
, int opcode
)
1633 char *ext_str
= __glXGetClientGLExtensionString();
1634 int size
= strlen(ext_str
) + 1;
1637 xcb_connection_t
*c
= XGetXCBConnection(dpy
);
1638 xcb_glx_client_info(c
,
1639 GLX_MAJOR_VERSION
, GLX_MINOR_VERSION
, size
, ext_str
);
1641 xGLXClientInfoReq
*req
;
1643 /* Send the glXClientInfo request */
1645 GetReq(GLXClientInfo
, req
);
1646 req
->reqType
= opcode
;
1647 req
->glxCode
= X_GLXClientInfo
;
1648 req
->major
= GLX_MAJOR_VERSION
;
1649 req
->minor
= GLX_MINOR_VERSION
;
1651 req
->length
+= (size
+ 3) >> 2;
1652 req
->numbytes
= size
;
1653 Data(dpy
, ext_str
, size
);
1657 #endif /* USE_XCB */
1664 ** EXT_import_context
1668 glXGetCurrentDisplay(void)
1670 GLXContext gc
= __glXGetCurrentContext();
1673 return gc
->currentDpy
;
1677 GLX_ALIAS(Display
*, glXGetCurrentDisplayEXT
, (void), (),
1678 glXGetCurrentDisplay
)
1680 #ifndef GLX_USE_APPLEGL
1682 glXImportContextEXT(Display
*dpy
, GLXContextID contextID
)
1684 __GLXdisplayPrivate
*priv
= __glXInitialize(dpy
);
1685 __GLXscreenConfigs
*psc
;
1686 xGLXQueryContextReply reply
;
1689 int propList
[__GLX_MAX_CONTEXT_PROPS
* 2], *pProp
, nPropListBytes
;
1692 __GLcontextModes
*mode
;
1694 if (contextID
== None
|| __glXIsDirect(dpy
, contextID
))
1697 opcode
= __glXSetupForCommand(dpy
);
1701 /* Send the glXQueryContextInfoEXT request */
1704 if (priv
->majorVersion
> 1 || priv
->minorVersion
>= 3) {
1705 xGLXQueryContextReq
*req
;
1707 GetReq(GLXQueryContext
, req
);
1709 req
->reqType
= opcode
;
1710 req
->glxCode
= X_GLXQueryContext
;
1711 req
->context
= contextID
;
1714 xGLXVendorPrivateReq
*vpreq
;
1715 xGLXQueryContextInfoEXTReq
*req
;
1717 GetReqExtra(GLXVendorPrivate
,
1718 sz_xGLXQueryContextInfoEXTReq
- sz_xGLXVendorPrivateReq
,
1720 req
= (xGLXQueryContextInfoEXTReq
*) vpreq
;
1721 req
->reqType
= opcode
;
1722 req
->glxCode
= X_GLXVendorPrivateWithReply
;
1723 req
->vendorCode
= X_GLXvop_QueryContextInfoEXT
;
1724 req
->context
= contextID
;
1727 _XReply(dpy
, (xReply
*) & reply
, 0, False
);
1729 if (reply
.n
<= __GLX_MAX_CONTEXT_PROPS
)
1730 nPropListBytes
= reply
.n
* 2 * sizeof propList
[0];
1733 _XRead(dpy
, (char *) propList
, nPropListBytes
);
1737 /* Look up screen first so we can look up visuals/fbconfigs later */
1739 for (i
= 0, pProp
= propList
; i
< reply
.n
; i
++, pProp
+= 2)
1740 if (pProp
[0] == GLX_SCREEN
)
1741 psc
= GetGLXScreenConfigs(dpy
, pProp
[1]);
1750 for (i
= 0, pProp
= propList
; i
< reply
.n
; i
++, pProp
+= 2)
1752 case GLX_SHARE_CONTEXT_EXT
:
1755 case GLX_VISUAL_ID_EXT
:
1756 mode
= _gl_context_modes_find_visual(psc
->visuals
, pProp
[1]);
1758 case GLX_FBCONFIG_ID
:
1759 mode
= _gl_context_modes_find_fbconfig(psc
->configs
, pProp
[1]);
1761 case GLX_RENDER_TYPE
:
1762 renderType
= pProp
[1];
1769 ctx
= indirect_create_context(psc
, mode
, NULL
, renderType
);
1773 ctx
->xid
= contextID
;
1774 ctx
->imported
= GL_TRUE
;
1775 ctx
->share_xid
= share
;
1783 glXQueryContext(Display
* dpy
, GLXContext ctx
, int attribute
, int *value
)
1785 switch (attribute
) {
1786 case GLX_SHARE_CONTEXT_EXT
:
1787 *value
= ctx
->share_xid
;
1789 case GLX_VISUAL_ID_EXT
:
1790 *value
= ctx
->mode
? ctx
->mode
->visualID
: None
;
1793 *value
= ctx
->screen
;
1795 case GLX_FBCONFIG_ID
:
1796 *value
= ctx
->mode
? ctx
->mode
->fbconfigID
: None
;
1798 case GLX_RENDER_TYPE
:
1799 *value
= ctx
->renderType
;
1802 return GLX_BAD_ATTRIBUTE
;
1808 GLX_ALIAS(int, glXQueryContextInfoEXT
,
1809 (Display
* dpy
, GLXContext ctx
, int attribute
, int *value
),
1810 (dpy
, ctx
, attribute
, value
), glXQueryContext
)
1812 PUBLIC GLXContextID
glXGetContextIDEXT(const GLXContext ctx
)
1818 glXFreeContextEXT(Display
* dpy
, GLXContext ctx
)
1820 DestroyContext(dpy
, ctx
);
1824 PUBLIC GLXFBConfig
*
1825 glXChooseFBConfig(Display
* dpy
, int screen
,
1826 const int *attribList
, int *nitems
)
1828 __GLcontextModes
**config_list
;
1832 config_list
= (__GLcontextModes
**)
1833 glXGetFBConfigs(dpy
, screen
, &list_size
);
1835 if ((config_list
!= NULL
) && (list_size
> 0) && (attribList
!= NULL
)) {
1836 list_size
= choose_visual(config_list
, list_size
, attribList
, GL_TRUE
);
1837 if (list_size
== 0) {
1843 *nitems
= list_size
;
1844 return (GLXFBConfig
*) config_list
;
1849 glXCreateNewContext(Display
* dpy
, GLXFBConfig config
,
1850 int renderType
, GLXContext shareList
, Bool allowDirect
)
1852 const __GLcontextModes
*const fbconfig
=
1853 (const __GLcontextModes
*const) config
;
1855 return CreateContext(dpy
, fbconfig
->fbconfigID
, fbconfig
, shareList
,
1856 allowDirect
, X_GLXCreateNewContext
, renderType
,
1862 glXGetCurrentReadDrawable(void)
1864 GLXContext gc
= __glXGetCurrentContext();
1865 return gc
->currentReadable
;
1869 PUBLIC GLXFBConfig
*
1870 glXGetFBConfigs(Display
* dpy
, int screen
, int *nelements
)
1872 __GLXdisplayPrivate
*priv
= __glXInitialize(dpy
);
1873 __GLcontextModes
**config
= NULL
;
1877 if (priv
&& (priv
->screenConfigs
!= NULL
)
1878 && (screen
>= 0) && (screen
<= ScreenCount(dpy
))
1879 && (priv
->screenConfigs
[screen
]->configs
!= NULL
)
1880 && (priv
->screenConfigs
[screen
]->configs
->fbconfigID
1881 != (int) GLX_DONT_CARE
)) {
1882 unsigned num_configs
= 0;
1883 __GLcontextModes
*modes
;
1886 for (modes
= priv
->screenConfigs
[screen
]->configs
; modes
!= NULL
;
1887 modes
= modes
->next
) {
1888 if (modes
->fbconfigID
!= (int) GLX_DONT_CARE
) {
1893 config
= (__GLcontextModes
**) Xmalloc(sizeof(__GLcontextModes
*)
1895 if (config
!= NULL
) {
1896 *nelements
= num_configs
;
1898 for (modes
= priv
->screenConfigs
[screen
]->configs
; modes
!= NULL
;
1899 modes
= modes
->next
) {
1900 if (modes
->fbconfigID
!= (int) GLX_DONT_CARE
) {
1907 return (GLXFBConfig
*) config
;
1912 glXGetFBConfigAttrib(Display
* dpy
, GLXFBConfig config
,
1913 int attribute
, int *value
)
1915 __GLcontextModes
*const modes
= ValidateGLXFBConfig(dpy
, config
);
1917 return (modes
!= NULL
)
1918 ? _gl_get_context_mode_data(modes
, attribute
, value
)
1923 PUBLIC XVisualInfo
*
1924 glXGetVisualFromFBConfig(Display
* dpy
, GLXFBConfig config
)
1926 XVisualInfo visualTemplate
;
1927 __GLcontextModes
*fbconfig
= (__GLcontextModes
*) config
;
1931 ** Get a list of all visuals, return if list is empty
1933 visualTemplate
.visualid
= fbconfig
->visualID
;
1934 return XGetVisualInfo(dpy
, VisualIDMask
, &visualTemplate
, &count
);
1937 #ifndef GLX_USE_APPLEGL
1939 ** GLX_SGI_swap_control
1942 __glXSwapIntervalSGI(int interval
)
1944 xGLXVendorPrivateReq
*req
;
1945 GLXContext gc
= __glXGetCurrentContext();
1946 __GLXscreenConfigs
*psc
;
1948 CARD32
*interval_ptr
;
1952 return GLX_BAD_CONTEXT
;
1955 if (interval
<= 0) {
1956 return GLX_BAD_VALUE
;
1959 psc
= GetGLXScreenConfigs( gc
->currentDpy
, gc
->screen
);
1961 #ifdef GLX_DIRECT_RENDERING
1962 if (gc
->driContext
&& psc
->driScreen
&& psc
->driScreen
->setSwapInterval
) {
1963 __GLXDRIdrawable
*pdraw
=
1964 GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
);
1965 psc
->driScreen
->setSwapInterval(pdraw
, interval
);
1970 dpy
= gc
->currentDpy
;
1971 opcode
= __glXSetupForCommand(dpy
);
1976 /* Send the glXSwapIntervalSGI request */
1978 GetReqExtra(GLXVendorPrivate
, sizeof(CARD32
), req
);
1979 req
->reqType
= opcode
;
1980 req
->glxCode
= X_GLXVendorPrivate
;
1981 req
->vendorCode
= X_GLXvop_SwapIntervalSGI
;
1982 req
->contextTag
= gc
->currentContextTag
;
1984 interval_ptr
= (CARD32
*) (req
+ 1);
1985 *interval_ptr
= interval
;
1996 ** GLX_MESA_swap_control
1999 __glXSwapIntervalMESA(unsigned int interval
)
2001 #ifdef GLX_DIRECT_RENDERING
2002 GLXContext gc
= __glXGetCurrentContext();
2004 if (gc
!= NULL
&& gc
->driContext
) {
2005 __GLXscreenConfigs
*psc
;
2007 psc
= GetGLXScreenConfigs( gc
->currentDpy
, gc
->screen
);
2008 if (psc
->driScreen
&& psc
->driScreen
->setSwapInterval
) {
2009 __GLXDRIdrawable
*pdraw
=
2010 GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
);
2011 return psc
->driScreen
->setSwapInterval(pdraw
, interval
);
2016 return GLX_BAD_CONTEXT
;
2021 __glXGetSwapIntervalMESA(void)
2023 #ifdef GLX_DIRECT_RENDERING
2024 GLXContext gc
= __glXGetCurrentContext();
2026 if (gc
!= NULL
&& gc
->driContext
) {
2027 __GLXscreenConfigs
*psc
;
2029 psc
= GetGLXScreenConfigs( gc
->currentDpy
, gc
->screen
);
2030 if (psc
->driScreen
&& psc
->driScreen
->getSwapInterval
) {
2031 __GLXDRIdrawable
*pdraw
=
2032 GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
);
2033 return psc
->driScreen
->getSwapInterval(pdraw
);
2043 ** GLX_SGI_video_sync
2046 __glXGetVideoSyncSGI(unsigned int *count
)
2048 int64_t ust
, msc
, sbc
;
2050 GLXContext gc
= __glXGetCurrentContext();
2051 __GLXscreenConfigs
*psc
;
2052 #ifdef GLX_DIRECT_RENDERING
2053 __GLXDRIdrawable
*pdraw
;
2057 return GLX_BAD_CONTEXT
;
2059 #ifdef GLX_DIRECT_RENDERING
2060 if (!gc
->driContext
)
2061 return GLX_BAD_CONTEXT
;
2064 psc
= GetGLXScreenConfigs(gc
->currentDpy
, gc
->screen
);
2065 #ifdef GLX_DIRECT_RENDERING
2066 pdraw
= GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
);
2069 /* FIXME: Looking at the GLX_SGI_video_sync spec in the extension registry,
2070 * FIXME: there should be a GLX encoding for this call. I can find no
2071 * FIXME: documentation for the GLX encoding.
2073 #ifdef GLX_DIRECT_RENDERING
2074 if (psc
->driScreen
&& psc
->driScreen
->getDrawableMSC
) {
2075 ret
= psc
->driScreen
->getDrawableMSC(psc
, pdraw
, &ust
, &msc
, &sbc
);
2076 *count
= (unsigned) msc
;
2077 return (ret
== True
) ? 0 : GLX_BAD_CONTEXT
;
2081 return GLX_BAD_CONTEXT
;
2085 __glXWaitVideoSyncSGI(int divisor
, int remainder
, unsigned int *count
)
2087 GLXContext gc
= __glXGetCurrentContext();
2088 __GLXscreenConfigs
*psc
;
2089 #ifdef GLX_DIRECT_RENDERING
2090 __GLXDRIdrawable
*pdraw
;
2092 int64_t ust
, msc
, sbc
;
2095 if (divisor
<= 0 || remainder
< 0)
2096 return GLX_BAD_VALUE
;
2099 return GLX_BAD_CONTEXT
;
2101 #ifdef GLX_DIRECT_RENDERING
2102 if (!gc
->driContext
)
2103 return GLX_BAD_CONTEXT
;
2106 psc
= GetGLXScreenConfigs( gc
->currentDpy
, gc
->screen
);
2107 #ifdef GLX_DIRECT_RENDERING
2108 pdraw
= GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
);
2111 #ifdef GLX_DIRECT_RENDERING
2112 if (psc
->driScreen
&& psc
->driScreen
->waitForMSC
) {
2113 ret
= psc
->driScreen
->waitForMSC(pdraw
, 0, divisor
, remainder
, &ust
, &msc
,
2115 *count
= (unsigned) msc
;
2116 return (ret
== True
) ? 0 : GLX_BAD_CONTEXT
;
2120 return GLX_BAD_CONTEXT
;
2123 #endif /* GLX_USE_APPLEGL */
2126 ** GLX_SGIX_fbconfig
2127 ** Many of these functions are aliased to GLX 1.3 entry points in the
2128 ** GLX_functions table.
2132 GLX_ALIAS(int, glXGetFBConfigAttribSGIX
,
2133 (Display
* dpy
, GLXFBConfigSGIX config
, int attribute
, int *value
),
2134 (dpy
, config
, attribute
, value
), glXGetFBConfigAttrib
)
2136 PUBLIC
GLX_ALIAS(GLXFBConfigSGIX
*, glXChooseFBConfigSGIX
,
2137 (Display
* dpy
, int screen
, int *attrib_list
,
2138 int *nelements
), (dpy
, screen
, attrib_list
, nelements
),
2141 PUBLIC
GLX_ALIAS(XVisualInfo
*, glXGetVisualFromFBConfigSGIX
,
2142 (Display
* dpy
, GLXFBConfigSGIX config
),
2143 (dpy
, config
), glXGetVisualFromFBConfig
)
2146 glXCreateGLXPixmapWithConfigSGIX(Display
* dpy
,
2147 GLXFBConfigSGIX config
,
2150 #ifndef GLX_USE_APPLEGL
2151 xGLXVendorPrivateWithReplyReq
*vpreq
;
2152 xGLXCreateGLXPixmapWithConfigSGIXReq
*req
;
2153 GLXPixmap xid
= None
;
2155 __GLXscreenConfigs
*psc
;
2157 const __GLcontextModes
*const fbconfig
= (__GLcontextModes
*) config
;
2160 if ((dpy
== NULL
) || (config
== NULL
)) {
2163 #ifdef GLX_USE_APPLEGL
2164 if(apple_glx_pixmap_create(dpy
, fbconfig
->screen
, pixmap
, fbconfig
))
2169 psc
= GetGLXScreenConfigs(dpy
, fbconfig
->screen
);
2171 && __glXExtensionBitIsEnabled(psc
, SGIX_fbconfig_bit
)) {
2172 opcode
= __glXSetupForCommand(dpy
);
2177 /* Send the glXCreateGLXPixmapWithConfigSGIX request */
2179 GetReqExtra(GLXVendorPrivateWithReply
,
2180 sz_xGLXCreateGLXPixmapWithConfigSGIXReq
-
2181 sz_xGLXVendorPrivateWithReplyReq
, vpreq
);
2182 req
= (xGLXCreateGLXPixmapWithConfigSGIXReq
*) vpreq
;
2183 req
->reqType
= opcode
;
2184 req
->glxCode
= X_GLXVendorPrivateWithReply
;
2185 req
->vendorCode
= X_GLXvop_CreateGLXPixmapWithConfigSGIX
;
2186 req
->screen
= fbconfig
->screen
;
2187 req
->fbconfig
= fbconfig
->fbconfigID
;
2188 req
->pixmap
= pixmap
;
2189 req
->glxpixmap
= xid
= XAllocID(dpy
);
2199 glXCreateContextWithConfigSGIX(Display
* dpy
,
2200 GLXFBConfigSGIX config
, int renderType
,
2201 GLXContext shareList
, Bool allowDirect
)
2203 GLXContext gc
= NULL
;
2204 const __GLcontextModes
*const fbconfig
= (__GLcontextModes
*) config
;
2205 __GLXscreenConfigs
*psc
;
2208 if ((dpy
== NULL
) || (config
== NULL
)) {
2212 psc
= GetGLXScreenConfigs(dpy
, fbconfig
->screen
);
2214 && __glXExtensionBitIsEnabled(psc
, SGIX_fbconfig_bit
)) {
2215 gc
= CreateContext(dpy
, fbconfig
->fbconfigID
, fbconfig
, shareList
,
2217 X_GLXvop_CreateContextWithConfigSGIX
, renderType
,
2225 PUBLIC GLXFBConfigSGIX
2226 glXGetFBConfigFromVisualSGIX(Display
* dpy
, XVisualInfo
* vis
)
2228 __GLXdisplayPrivate
*priv
;
2229 __GLXscreenConfigs
*psc
= NULL
;
2231 if ((GetGLXPrivScreenConfig(dpy
, vis
->screen
, &priv
, &psc
) != Success
)
2232 && __glXExtensionBitIsEnabled(psc
, SGIX_fbconfig_bit
)
2233 && (psc
->configs
->fbconfigID
!= (int) GLX_DONT_CARE
)) {
2234 return (GLXFBConfigSGIX
) _gl_context_modes_find_visual(psc
->configs
,
2241 #ifndef GLX_USE_APPLEGL
2243 ** GLX_SGIX_swap_group
2246 __glXJoinSwapGroupSGIX(Display
* dpy
, GLXDrawable drawable
,
2256 ** GLX_SGIX_swap_barrier
2259 __glXBindSwapBarrierSGIX(Display
* dpy
, GLXDrawable drawable
, int barrier
)
2267 __glXQueryMaxSwapBarriersSGIX(Display
* dpy
, int screen
, int *max
)
2277 ** GLX_OML_sync_control
2280 __glXGetSyncValuesOML(Display
* dpy
, GLXDrawable drawable
,
2281 int64_t * ust
, int64_t * msc
, int64_t * sbc
)
2283 __GLXdisplayPrivate
* const priv
= __glXInitialize(dpy
);
2285 #ifdef GLX_DIRECT_RENDERING
2286 __GLXDRIdrawable
*pdraw
;
2288 __GLXscreenConfigs
*psc
;
2293 #ifdef GLX_DIRECT_RENDERING
2294 pdraw
= GetGLXDRIDrawable(dpy
, drawable
);
2295 psc
= pdraw
? pdraw
->psc
: NULL
;
2296 if (pdraw
&& psc
->driScreen
->getDrawableMSC
) {
2297 ret
= psc
->driScreen
->getDrawableMSC(psc
, pdraw
, ust
, msc
, sbc
);
2305 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
2307 __glxGetMscRate(__GLXDRIdrawable
*glxDraw
,
2308 int32_t * numerator
, int32_t * denominator
)
2311 __GLXscreenConfigs
*psc
;
2312 XF86VidModeModeLine mode_line
;
2317 if (XF86VidModeQueryVersion(psc
->dpy
, &i
, &i
) &&
2318 XF86VidModeGetModeLine(psc
->dpy
, psc
->scr
, &dot_clock
, &mode_line
)) {
2319 unsigned n
= dot_clock
* 1000;
2320 unsigned d
= mode_line
.vtotal
* mode_line
.htotal
;
2322 # define V_INTERLACE 0x010
2323 # define V_DBLSCAN 0x020
2325 if (mode_line
.flags
& V_INTERLACE
)
2327 else if (mode_line
.flags
& V_DBLSCAN
)
2330 /* The OML_sync_control spec requires that if the refresh rate is a
2331 * whole number, that the returned numerator be equal to the refresh
2332 * rate and the denominator be 1.
2340 static const unsigned f
[] = { 13, 11, 7, 5, 3, 2, 0 };
2342 /* This is a poor man's way to reduce a fraction. It's far from
2343 * perfect, but it will work well enough for this situation.
2346 for (i
= 0; f
[i
] != 0; i
++) {
2347 while (n
% f
[i
] == 0 && d
% f
[i
] == 0) {
2373 * Determine the refresh rate of the specified drawable and display.
2375 * \param dpy Display whose refresh rate is to be determined.
2376 * \param drawable Drawable whose refresh rate is to be determined.
2377 * \param numerator Numerator of the refresh rate.
2378 * \param demoninator Denominator of the refresh rate.
2379 * \return If the refresh rate for the specified display and drawable could
2380 * be calculated, True is returned. Otherwise False is returned.
2382 * \note This function is implemented entirely client-side. A lot of other
2383 * functionality is required to export GLX_OML_sync_control, so on
2384 * XFree86 this function can be called for direct-rendering contexts
2385 * when GLX_OML_sync_control appears in the client extension string.
2389 __glXGetMscRateOML(Display
* dpy
, GLXDrawable drawable
,
2390 int32_t * numerator
, int32_t * denominator
)
2392 #if defined( GLX_DIRECT_RENDERING ) && defined( XF86VIDMODE )
2393 __GLXDRIdrawable
*draw
= GetGLXDRIDrawable(dpy
, drawable
);
2398 return __glxGetMscRate(draw
, numerator
, denominator
);
2410 __glXSwapBuffersMscOML(Display
* dpy
, GLXDrawable drawable
,
2411 int64_t target_msc
, int64_t divisor
, int64_t remainder
)
2413 GLXContext gc
= __glXGetCurrentContext();
2414 #ifdef GLX_DIRECT_RENDERING
2415 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
);
2416 __GLXscreenConfigs
*psc
= pdraw
? pdraw
->psc
: NULL
;
2419 if (!gc
) /* no GLX for this */
2422 #ifdef GLX_DIRECT_RENDERING
2423 if (!pdraw
|| !gc
->driContext
)
2427 /* The OML_sync_control spec says these should "generate a GLX_BAD_VALUE
2428 * error", but it also says "It [glXSwapBuffersMscOML] will return a value
2429 * of -1 if the function failed because of errors detected in the input
2432 if (divisor
< 0 || remainder
< 0 || target_msc
< 0)
2434 if (divisor
> 0 && remainder
>= divisor
)
2437 if (target_msc
== 0 && divisor
== 0 && remainder
== 0)
2440 #ifdef GLX_DIRECT_RENDERING
2441 if (psc
->driScreen
&& psc
->driScreen
->swapBuffers
)
2442 return (*psc
->driScreen
->swapBuffers
)(pdraw
, target_msc
, divisor
,
2451 __glXWaitForMscOML(Display
* dpy
, GLXDrawable drawable
,
2452 int64_t target_msc
, int64_t divisor
,
2453 int64_t remainder
, int64_t * ust
,
2454 int64_t * msc
, int64_t * sbc
)
2456 #ifdef GLX_DIRECT_RENDERING
2457 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
);
2459 __GLXscreenConfigs
*psc
= pdraw
? pdraw
->psc
: NULL
;
2463 /* The OML_sync_control spec says these should "generate a GLX_BAD_VALUE
2464 * error", but the return type in the spec is Bool.
2466 if (divisor
< 0 || remainder
< 0 || target_msc
< 0)
2468 if (divisor
> 0 && remainder
>= divisor
)
2471 #ifdef GLX_DIRECT_RENDERING
2472 if (pdraw
&& psc
->driScreen
&& psc
->driScreen
->waitForMSC
) {
2473 ret
= psc
->driScreen
->waitForMSC(pdraw
, target_msc
, divisor
, remainder
,
2484 __glXWaitForSbcOML(Display
* dpy
, GLXDrawable drawable
,
2485 int64_t target_sbc
, int64_t * ust
,
2486 int64_t * msc
, int64_t * sbc
)
2488 #ifdef GLX_DIRECT_RENDERING
2489 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
);
2491 __GLXscreenConfigs
*psc
= pdraw
? pdraw
->psc
: NULL
;
2494 /* The OML_sync_control spec says this should "generate a GLX_BAD_VALUE
2495 * error", but the return type in the spec is Bool.
2500 #ifdef GLX_DIRECT_RENDERING
2501 if (pdraw
&& psc
->driScreen
&& psc
->driScreen
->waitForSBC
) {
2502 ret
= psc
->driScreen
->waitForSBC(pdraw
, target_sbc
, ust
, msc
, sbc
);
2514 * Mesa extension stubs. These will help reduce portability problems.
2519 * Release all buffers associated with the specified GLX drawable.
2522 * This function was intended for stand-alone Mesa. The issue there is that
2523 * the library doesn't get any notification when a window is closed. In
2524 * DRI there is a similar but slightly different issue. When GLX 1.3 is
2525 * supported, there are 3 different functions to destroy a drawable. It
2526 * should be possible to create GLX protocol (or have it determine which
2527 * protocol to use based on the type of the drawable) to have one function
2528 * do the work of 3. For the direct-rendering case, this function could
2529 * just call the driver's \c __DRIdrawableRec::destroyDrawable function.
2530 * This would reduce the frequency with which \c __driGarbageCollectDrawables
2531 * would need to be used. This really should be done as part of the new DRI
2534 * \sa http://oss.sgi.com/projects/ogl-sample/registry/MESA/release_buffers.txt
2535 * __driGarbageCollectDrawables
2536 * glXDestroyGLXPixmap
2537 * glXDestroyPbuffer glXDestroyPixmap glXDestroyWindow
2538 * glXDestroyGLXPbufferSGIX glXDestroyGLXVideoSourceSGIX
2541 __glXReleaseBuffersMESA(Display
* dpy
, GLXDrawable d
)
2550 glXCreateGLXPixmapMESA(Display
* dpy
, XVisualInfo
* visual
,
2551 Pixmap pixmap
, Colormap cmap
)
2564 * GLX_MESA_copy_sub_buffer
2566 #define X_GLXvop_CopySubBufferMESA 5154 /* temporary */
2568 __glXCopySubBufferMESA(Display
* dpy
, GLXDrawable drawable
,
2569 int x
, int y
, int width
, int height
)
2571 xGLXVendorPrivateReq
*req
;
2574 CARD32
*drawable_ptr
;
2575 INT32
*x_ptr
, *y_ptr
, *w_ptr
, *h_ptr
;
2578 fprintf(stderr
, "copy sub: %d,%d %dx%d\n", x
, y
, width
, height
);
2580 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
2581 __GLXDRIdrawable
*pdraw
= GetGLXDRIDrawable(dpy
, drawable
);
2582 if (pdraw
!= NULL
) {
2583 __GLXscreenConfigs
*psc
= pdraw
->psc
;
2584 if (psc
->driScreen
->copySubBuffer
!= NULL
) {
2586 (*psc
->driScreen
->copySubBuffer
) (pdraw
, x
, y
, width
, height
);
2593 opcode
= __glXSetupForCommand(dpy
);
2598 ** The calling thread may or may not have a current context. If it
2599 ** does, send the context tag so the server can do a flush.
2601 gc
= __glXGetCurrentContext();
2602 if ((gc
!= NULL
) && (dpy
== gc
->currentDpy
) &&
2603 ((drawable
== gc
->currentDrawable
) ||
2604 (drawable
== gc
->currentReadable
))) {
2605 tag
= gc
->currentContextTag
;
2612 GetReqExtra(GLXVendorPrivate
, sizeof(CARD32
) + sizeof(INT32
) * 4, req
);
2613 req
->reqType
= opcode
;
2614 req
->glxCode
= X_GLXVendorPrivate
;
2615 req
->vendorCode
= X_GLXvop_CopySubBufferMESA
;
2616 req
->contextTag
= tag
;
2618 drawable_ptr
= (CARD32
*) (req
+ 1);
2619 x_ptr
= (INT32
*) (drawable_ptr
+ 1);
2620 y_ptr
= (INT32
*) (drawable_ptr
+ 2);
2621 w_ptr
= (INT32
*) (drawable_ptr
+ 3);
2622 h_ptr
= (INT32
*) (drawable_ptr
+ 4);
2624 *drawable_ptr
= drawable
;
2636 * GLX_EXT_texture_from_pixmap
2639 indirect_bind_tex_image(Display
* dpy
,
2640 GLXDrawable drawable
,
2641 int buffer
, const int *attrib_list
)
2643 xGLXVendorPrivateReq
*req
;
2644 GLXContext gc
= __glXGetCurrentContext();
2645 CARD32
*drawable_ptr
;
2647 CARD32
*num_attrib_ptr
;
2654 while (attrib_list
[i
* 2] != None
)
2658 opcode
= __glXSetupForCommand(dpy
);
2663 GetReqExtra(GLXVendorPrivate
, 12 + 8 * i
, req
);
2664 req
->reqType
= opcode
;
2665 req
->glxCode
= X_GLXVendorPrivate
;
2666 req
->vendorCode
= X_GLXvop_BindTexImageEXT
;
2667 req
->contextTag
= gc
->currentContextTag
;
2669 drawable_ptr
= (CARD32
*) (req
+ 1);
2670 buffer_ptr
= (INT32
*) (drawable_ptr
+ 1);
2671 num_attrib_ptr
= (CARD32
*) (buffer_ptr
+ 1);
2672 attrib_ptr
= (CARD32
*) (num_attrib_ptr
+ 1);
2674 *drawable_ptr
= drawable
;
2675 *buffer_ptr
= buffer
;
2676 *num_attrib_ptr
= (CARD32
) i
;
2680 while (attrib_list
[i
* 2] != None
) {
2681 *attrib_ptr
++ = (CARD32
) attrib_list
[i
* 2 + 0];
2682 *attrib_ptr
++ = (CARD32
) attrib_list
[i
* 2 + 1];
2692 indirect_release_tex_image(Display
* dpy
, GLXDrawable drawable
, int buffer
)
2694 xGLXVendorPrivateReq
*req
;
2695 GLXContext gc
= __glXGetCurrentContext();
2696 CARD32
*drawable_ptr
;
2700 opcode
= __glXSetupForCommand(dpy
);
2705 GetReqExtra(GLXVendorPrivate
, sizeof(CARD32
) + sizeof(INT32
), req
);
2706 req
->reqType
= opcode
;
2707 req
->glxCode
= X_GLXVendorPrivate
;
2708 req
->vendorCode
= X_GLXvop_ReleaseTexImageEXT
;
2709 req
->contextTag
= gc
->currentContextTag
;
2711 drawable_ptr
= (CARD32
*) (req
+ 1);
2712 buffer_ptr
= (INT32
*) (drawable_ptr
+ 1);
2714 *drawable_ptr
= drawable
;
2715 *buffer_ptr
= buffer
;
2721 static const struct glx_context_vtable indirect_context_vtable
= {
2722 indirect_destroy_context
,
2725 indirect_use_x_font
,
2726 indirect_bind_tex_image
,
2727 indirect_release_tex_image
,
2732 __glXBindTexImageEXT(Display
* dpy
,
2733 GLXDrawable drawable
, int buffer
, const int *attrib_list
)
2735 GLXContext gc
= __glXGetCurrentContext();
2737 if (gc
== NULL
|| gc
->vtable
->bind_tex_image
== NULL
)
2740 gc
->vtable
->bind_tex_image(dpy
, drawable
, buffer
, attrib_list
);
2744 __glXReleaseTexImageEXT(Display
* dpy
, GLXDrawable drawable
, int buffer
)
2746 GLXContext gc
= __glXGetCurrentContext();
2748 if (gc
== NULL
|| gc
->vtable
->release_tex_image
== NULL
)
2751 gc
->vtable
->release_tex_image(dpy
, drawable
, buffer
);
2756 #endif /* GLX_USE_APPLEGL */
2759 * \c strdup is actually not a standard ANSI C or POSIX routine.
2760 * Irix will not define it if ANSI mode is in effect.
2765 __glXstrdup(const char *str
)
2768 copy
= (char *) Xmalloc(strlen(str
) + 1);
2776 ** glXGetProcAddress support
2779 struct name_address_pair
2785 #define GLX_FUNCTION(f) { # f, (GLvoid *) f }
2786 #define GLX_FUNCTION2(n,f) { # n, (GLvoid *) f }
2788 static const struct name_address_pair GLX_functions
[] = {
2789 /*** GLX_VERSION_1_0 ***/
2790 GLX_FUNCTION(glXChooseVisual
),
2791 GLX_FUNCTION(glXCopyContext
),
2792 GLX_FUNCTION(glXCreateContext
),
2793 GLX_FUNCTION(glXCreateGLXPixmap
),
2794 GLX_FUNCTION(glXDestroyContext
),
2795 GLX_FUNCTION(glXDestroyGLXPixmap
),
2796 GLX_FUNCTION(glXGetConfig
),
2797 GLX_FUNCTION(glXGetCurrentContext
),
2798 GLX_FUNCTION(glXGetCurrentDrawable
),
2799 GLX_FUNCTION(glXIsDirect
),
2800 GLX_FUNCTION(glXMakeCurrent
),
2801 GLX_FUNCTION(glXQueryExtension
),
2802 GLX_FUNCTION(glXQueryVersion
),
2803 GLX_FUNCTION(glXSwapBuffers
),
2804 GLX_FUNCTION(glXUseXFont
),
2805 GLX_FUNCTION(glXWaitGL
),
2806 GLX_FUNCTION(glXWaitX
),
2808 /*** GLX_VERSION_1_1 ***/
2809 GLX_FUNCTION(glXGetClientString
),
2810 GLX_FUNCTION(glXQueryExtensionsString
),
2811 GLX_FUNCTION(glXQueryServerString
),
2813 /*** GLX_VERSION_1_2 ***/
2814 GLX_FUNCTION(glXGetCurrentDisplay
),
2816 /*** GLX_VERSION_1_3 ***/
2817 GLX_FUNCTION(glXChooseFBConfig
),
2818 GLX_FUNCTION(glXCreateNewContext
),
2819 GLX_FUNCTION(glXCreatePbuffer
),
2820 GLX_FUNCTION(glXCreatePixmap
),
2821 GLX_FUNCTION(glXCreateWindow
),
2822 GLX_FUNCTION(glXDestroyPbuffer
),
2823 GLX_FUNCTION(glXDestroyPixmap
),
2824 GLX_FUNCTION(glXDestroyWindow
),
2825 GLX_FUNCTION(glXGetCurrentReadDrawable
),
2826 GLX_FUNCTION(glXGetFBConfigAttrib
),
2827 GLX_FUNCTION(glXGetFBConfigs
),
2828 GLX_FUNCTION(glXGetSelectedEvent
),
2829 GLX_FUNCTION(glXGetVisualFromFBConfig
),
2830 GLX_FUNCTION(glXMakeContextCurrent
),
2831 GLX_FUNCTION(glXQueryContext
),
2832 GLX_FUNCTION(glXQueryDrawable
),
2833 GLX_FUNCTION(glXSelectEvent
),
2835 #ifndef GLX_USE_APPLEGL
2836 /*** GLX_SGI_swap_control ***/
2837 GLX_FUNCTION2(glXSwapIntervalSGI
, __glXSwapIntervalSGI
),
2839 /*** GLX_SGI_video_sync ***/
2840 GLX_FUNCTION2(glXGetVideoSyncSGI
, __glXGetVideoSyncSGI
),
2841 GLX_FUNCTION2(glXWaitVideoSyncSGI
, __glXWaitVideoSyncSGI
),
2843 /*** GLX_SGI_make_current_read ***/
2844 GLX_FUNCTION2(glXMakeCurrentReadSGI
, glXMakeContextCurrent
),
2845 GLX_FUNCTION2(glXGetCurrentReadDrawableSGI
, glXGetCurrentReadDrawable
),
2847 /*** GLX_EXT_import_context ***/
2848 GLX_FUNCTION(glXFreeContextEXT
),
2849 GLX_FUNCTION(glXGetContextIDEXT
),
2850 GLX_FUNCTION2(glXGetCurrentDisplayEXT
, glXGetCurrentDisplay
),
2851 GLX_FUNCTION(glXImportContextEXT
),
2852 GLX_FUNCTION2(glXQueryContextInfoEXT
, glXQueryContext
),
2855 /*** GLX_SGIX_fbconfig ***/
2856 GLX_FUNCTION2(glXGetFBConfigAttribSGIX
, glXGetFBConfigAttrib
),
2857 GLX_FUNCTION2(glXChooseFBConfigSGIX
, glXChooseFBConfig
),
2858 GLX_FUNCTION(glXCreateGLXPixmapWithConfigSGIX
),
2859 GLX_FUNCTION(glXCreateContextWithConfigSGIX
),
2860 GLX_FUNCTION2(glXGetVisualFromFBConfigSGIX
, glXGetVisualFromFBConfig
),
2861 GLX_FUNCTION(glXGetFBConfigFromVisualSGIX
),
2863 #ifndef GLX_USE_APPLEGL
2864 /*** GLX_SGIX_pbuffer ***/
2865 GLX_FUNCTION(glXCreateGLXPbufferSGIX
),
2866 GLX_FUNCTION(glXDestroyGLXPbufferSGIX
),
2867 GLX_FUNCTION(glXQueryGLXPbufferSGIX
),
2868 GLX_FUNCTION(glXSelectEventSGIX
),
2869 GLX_FUNCTION(glXGetSelectedEventSGIX
),
2871 /*** GLX_SGIX_swap_group ***/
2872 GLX_FUNCTION2(glXJoinSwapGroupSGIX
, __glXJoinSwapGroupSGIX
),
2874 /*** GLX_SGIX_swap_barrier ***/
2875 GLX_FUNCTION2(glXBindSwapBarrierSGIX
, __glXBindSwapBarrierSGIX
),
2876 GLX_FUNCTION2(glXQueryMaxSwapBarriersSGIX
, __glXQueryMaxSwapBarriersSGIX
),
2878 /*** GLX_MESA_copy_sub_buffer ***/
2879 GLX_FUNCTION2(glXCopySubBufferMESA
, __glXCopySubBufferMESA
),
2881 /*** GLX_MESA_pixmap_colormap ***/
2882 GLX_FUNCTION(glXCreateGLXPixmapMESA
),
2884 /*** GLX_MESA_release_buffers ***/
2885 GLX_FUNCTION2(glXReleaseBuffersMESA
, __glXReleaseBuffersMESA
),
2887 /*** GLX_MESA_swap_control ***/
2888 GLX_FUNCTION2(glXSwapIntervalMESA
, __glXSwapIntervalMESA
),
2889 GLX_FUNCTION2(glXGetSwapIntervalMESA
, __glXGetSwapIntervalMESA
),
2892 /*** GLX_ARB_get_proc_address ***/
2893 GLX_FUNCTION(glXGetProcAddressARB
),
2896 GLX_FUNCTION2(glXGetProcAddress
, glXGetProcAddressARB
),
2898 #ifndef GLX_USE_APPLEGL
2899 /*** GLX_OML_sync_control ***/
2900 GLX_FUNCTION2(glXWaitForSbcOML
, __glXWaitForSbcOML
),
2901 GLX_FUNCTION2(glXWaitForMscOML
, __glXWaitForMscOML
),
2902 GLX_FUNCTION2(glXSwapBuffersMscOML
, __glXSwapBuffersMscOML
),
2903 GLX_FUNCTION2(glXGetMscRateOML
, __glXGetMscRateOML
),
2904 GLX_FUNCTION2(glXGetSyncValuesOML
, __glXGetSyncValuesOML
),
2906 /*** GLX_EXT_texture_from_pixmap ***/
2907 GLX_FUNCTION2(glXBindTexImageEXT
, __glXBindTexImageEXT
),
2908 GLX_FUNCTION2(glXReleaseTexImageEXT
, __glXReleaseTexImageEXT
),
2911 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
2912 /*** DRI configuration ***/
2913 GLX_FUNCTION(glXGetScreenDriver
),
2914 GLX_FUNCTION(glXGetDriverConfig
),
2917 {NULL
, NULL
} /* end of list */
2920 #ifndef GLX_USE_APPLEGL
2921 static const GLvoid
*
2922 get_glx_proc_address(const char *funcName
)
2926 /* try static functions */
2927 for (i
= 0; GLX_functions
[i
].Name
; i
++) {
2928 if (strcmp(GLX_functions
[i
].Name
, funcName
) == 0)
2929 return GLX_functions
[i
].Address
;
2937 * Get the address of a named GL function. This is the pre-GLX 1.4 name for
2938 * \c glXGetProcAddress.
2940 * \param procName Name of a GL or GLX function.
2941 * \returns A pointer to the named function
2943 * \sa glXGetProcAddress
2945 PUBLIC
void (*glXGetProcAddressARB(const GLubyte
* procName
)) (void)
2947 typedef void (*gl_function
) (void);
2951 /* Search the table of GLX and internal functions first. If that
2952 * fails and the supplied name could be a valid core GL name, try
2953 * searching the core GL function table. This check is done to prevent
2954 * DRI based drivers from searching the core GL function table for
2955 * internal API functions.
2957 #ifdef GLX_USE_APPLEGL
2958 f
= (gl_function
) apple_glx_get_proc_address(procName
);
2960 f
= (gl_function
) get_glx_proc_address((const char *) procName
);
2961 if ((f
== NULL
) && (procName
[0] == 'g') && (procName
[1] == 'l')
2962 && (procName
[2] != 'X')) {
2963 f
= (gl_function
) _glapi_get_proc_address((const char *) procName
);
2970 * Get the address of a named GL function. This is the GLX 1.4 name for
2971 * \c glXGetProcAddressARB.
2973 * \param procName Name of a GL or GLX function.
2974 * \returns A pointer to the named function
2976 * \sa glXGetProcAddressARB
2978 PUBLIC
void (*glXGetProcAddress(const GLubyte
* procName
)) (void)
2979 #if defined(__GNUC__) && !defined(GLX_ALIAS_UNSUPPORTED)
2980 __attribute__ ((alias("glXGetProcAddressARB")));
2983 return glXGetProcAddressARB(procName
);
2985 #endif /* __GNUC__ */
2988 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
2990 * Get the unadjusted system time (UST). Currently, the UST is measured in
2991 * microseconds since Epoc. The actual resolution of the UST may vary from
2992 * system to system, and the units may vary from release to release.
2993 * Drivers should not call this function directly. They should instead use
2994 * \c glXGetProcAddress to obtain a pointer to the function.
2996 * \param ust Location to store the 64-bit UST
2997 * \returns Zero on success or a negative errno value on failure.
2999 * \sa glXGetProcAddress, PFNGLXGETUSTPROC
3001 * \since Internal API version 20030317.
3004 __glXGetUST(int64_t * ust
)
3012 if (gettimeofday(&tv
, NULL
) == 0) {
3013 ust
[0] = (tv
.tv_sec
* 1000000) + tv
.tv_usec
;
3020 #endif /* GLX_DIRECT_RENDERING */