1 /**************************************************************************
3 Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
6 Permission is hereby granted, free of charge, to any person obtaining a
7 copy of this software and associated documentation files (the
8 "Software"), to deal in the Software without restriction, including
9 without limitation the rights to use, copy, modify, merge, publish,
10 distribute, sub license, and/or sell copies of the Software, and to
11 permit persons to whom the Software is furnished to do so, subject to
12 the following conditions:
14 The above copyright notice and this permission notice (including the
15 next paragraph) shall be included in all copies or substantial portions
18 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
22 ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
30 * Kevin E. Martin <kevin@precisioninsight.com>
31 * Brian Paul <brian@precisioninsight.com>
35 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
38 #include <X11/extensions/Xfixes.h>
39 #include <X11/extensions/Xdamage.h>
40 #include "glxclient.h"
45 #include <sys/types.h>
48 #include "dri_common.h"
55 ** XFree86-DRI version information
64 struct glx_screen base
;
66 __DRIscreen
*driScreen
;
67 __GLXDRIscreen vtable
;
68 const __DRIlegacyExtension
*legacy
;
69 const __DRIcoreExtension
*core
;
70 const __DRIswapControlExtension
*swapControl
;
71 const __DRImediaStreamCounterExtension
*msc
;
72 const __DRIconfig
**driver_configs
;
73 const __DRIcopySubBufferExtension
*driCopySubBuffer
;
81 struct glx_context base
;
82 __DRIcontext
*driContext
;
88 __GLXDRIdrawable base
;
90 __DRIdrawable
*driDrawable
;
93 static const struct glx_context_vtable dri_context_vtable
;
96 * Given a display pointer and screen number, determine the name of
97 * the DRI driver for the screen (i.e., "i965", "radeon", "nouveau", etc).
98 * Return True for success, False for failure.
101 driGetDriverName(Display
* dpy
, int scrNum
, char **driverName
)
106 int driverMajor
, driverMinor
, driverPatch
;
110 if (XF86DRIQueryExtension(dpy
, &event
, &error
)) { /* DRI1 */
111 if (!XF86DRIQueryDirectRenderingCapable(dpy
, scrNum
, &directCapable
)) {
112 ErrorMessageF("XF86DRIQueryDirectRenderingCapable failed\n");
115 if (!directCapable
) {
116 ErrorMessageF("XF86DRIQueryDirectRenderingCapable returned false\n");
120 b
= XF86DRIGetClientDriverName(dpy
, scrNum
, &driverMajor
, &driverMinor
,
121 &driverPatch
, driverName
);
123 ErrorMessageF("Cannot determine driver name for screen %d\n",
128 InfoMessageF("XF86DRIGetClientDriverName: %d.%d.%d %s (screen %d)\n",
129 driverMajor
, driverMinor
, driverPatch
, *driverName
,
134 else if (DRI2QueryExtension(dpy
, &event
, &error
)) { /* DRI2 */
136 Bool ret
= DRI2Connect(dpy
, RootWindow(dpy
, scrNum
), driverName
, &dev
);
148 * Exported function for querying the DRI driver for a given screen.
150 * The returned char pointer points to a static array that will be
151 * overwritten by subsequent calls.
153 _X_EXPORT
const char *
154 glXGetScreenDriver(Display
* dpy
, int scrNum
)
158 if (driGetDriverName(dpy
, scrNum
, &driverName
)) {
162 len
= strlen(driverName
);
165 memcpy(ret
, driverName
, len
+ 1);
173 * Exported function for obtaining a driver's option list (UTF-8 encoded XML).
175 * The returned char pointer points directly into the driver. Therefore
176 * it should be treated as a constant.
178 * If the driver was not found or does not support configuration NULL is
181 * Note: The driver remains opened after this function returns.
183 _X_EXPORT
const char *
184 glXGetDriverConfig(const char *driverName
)
186 void *handle
= driOpenDriver(driverName
);
188 return dlsym(handle
, "__driConfigOptions");
193 #ifdef XDAMAGE_1_1_INTERFACE
196 has_damage_post(Display
* dpy
)
198 static GLboolean inited
= GL_FALSE
;
199 static GLboolean has_damage
;
204 if (XDamageQueryVersion(dpy
, &major
, &minor
) &&
205 major
== 1 && minor
>= 1) {
206 has_damage
= GL_TRUE
;
209 has_damage
= GL_FALSE
;
218 __glXReportDamage(__DRIdrawable
* driDraw
,
220 drm_clip_rect_t
* rects
, int num_rects
,
221 GLboolean front_buffer
, void *loaderPrivate
)
224 XserverRegion region
;
227 __GLXDRIdrawable
*glxDraw
= loaderPrivate
;
228 struct glx_screen
*psc
= glxDraw
->psc
;
229 Display
*dpy
= psc
->dpy
;
232 if (!has_damage_post(dpy
))
238 drawable
= RootWindow(dpy
, psc
->scr
);
243 drawable
= glxDraw
->xDrawable
;
246 xrects
= malloc(sizeof(XRectangle
) * num_rects
);
250 for (i
= 0; i
< num_rects
; i
++) {
251 xrects
[i
].x
= rects
[i
].x1
+ x_off
;
252 xrects
[i
].y
= rects
[i
].y1
+ y_off
;
253 xrects
[i
].width
= rects
[i
].x2
- rects
[i
].x1
;
254 xrects
[i
].height
= rects
[i
].y2
- rects
[i
].y1
;
256 region
= XFixesCreateRegion(dpy
, xrects
, num_rects
);
258 XDamageAdd(dpy
, drawable
, region
);
259 XFixesDestroyRegion(dpy
, region
);
262 static const __DRIdamageExtension damageExtension
= {
263 {__DRI_DAMAGE
, __DRI_DAMAGE_VERSION
},
270 __glXDRIGetDrawableInfo(__DRIdrawable
* drawable
,
271 unsigned int *index
, unsigned int *stamp
,
272 int *X
, int *Y
, int *W
, int *H
,
273 int *numClipRects
, drm_clip_rect_t
** pClipRects
,
274 int *backX
, int *backY
,
275 int *numBackClipRects
,
276 drm_clip_rect_t
** pBackClipRects
,
279 __GLXDRIdrawable
*glxDraw
= loaderPrivate
;
280 struct glx_screen
*psc
= glxDraw
->psc
;
281 Display
*dpy
= psc
->dpy
;
283 return XF86DRIGetDrawableInfo(dpy
, psc
->scr
, glxDraw
->drawable
,
284 index
, stamp
, X
, Y
, W
, H
,
285 numClipRects
, pClipRects
,
287 numBackClipRects
, pBackClipRects
);
290 static const __DRIgetDrawableInfoExtension getDrawableInfoExtension
= {
291 {__DRI_GET_DRAWABLE_INFO
, __DRI_GET_DRAWABLE_INFO_VERSION
},
292 __glXDRIGetDrawableInfo
295 static const __DRIextension
*loader_extensions
[] = {
296 &systemTimeExtension
.base
,
297 &getDrawableInfoExtension
.base
,
298 #ifdef XDAMAGE_1_1_INTERFACE
299 &damageExtension
.base
,
305 * Perform the required libGL-side initialization and call the client-side
306 * driver's \c __driCreateNewScreen function.
308 * \param dpy Display pointer.
309 * \param scrn Screen number on the display.
310 * \param psc DRI screen information.
311 * \param driDpy DRI display information.
312 * \param createNewScreen Pointer to the client-side driver's
313 * \c __driCreateNewScreen function.
314 * \returns A pointer to the \c __DRIscreen structure returned by
315 * the client-side driver on success, or \c NULL on failure.
318 CallCreateNewScreen(Display
*dpy
, int scrn
, struct dri_screen
*psc
,
319 struct dri_display
* driDpy
)
323 drmAddress pSAREA
= MAP_FAILED
;
325 __DRIversion ddx_version
;
326 __DRIversion dri_version
;
327 __DRIversion drm_version
;
328 __DRIframebuffer framebuffer
;
333 drmVersionPtr version
;
338 const __DRIconfig
**driver_configs
;
339 struct glx_config
*visual
, *configs
= NULL
, *visuals
= NULL
;
341 /* DRI protocol version. */
342 dri_version
.major
= driDpy
->driMajor
;
343 dri_version
.minor
= driDpy
->driMinor
;
344 dri_version
.patch
= driDpy
->driPatch
;
346 framebuffer
.base
= MAP_FAILED
;
347 framebuffer
.dev_priv
= NULL
;
348 framebuffer
.size
= 0;
350 if (!XF86DRIOpenConnection(dpy
, scrn
, &hSAREA
, &BusID
)) {
351 ErrorMessageF("XF86DRIOpenConnection failed\n");
355 fd
= drmOpenOnce(NULL
, BusID
, &newlyopened
);
357 Xfree(BusID
); /* No longer needed */
360 ErrorMessageF("drmOpenOnce failed (%s)\n", strerror(-fd
));
364 if (drmGetMagic(fd
, &magic
)) {
365 ErrorMessageF("drmGetMagic failed\n");
369 version
= drmGetVersion(fd
);
371 drm_version
.major
= version
->version_major
;
372 drm_version
.minor
= version
->version_minor
;
373 drm_version
.patch
= version
->version_patchlevel
;
374 drmFreeVersion(version
);
377 drm_version
.major
= -1;
378 drm_version
.minor
= -1;
379 drm_version
.patch
= -1;
382 if (newlyopened
&& !XF86DRIAuthConnection(dpy
, scrn
, magic
)) {
383 ErrorMessageF("XF86DRIAuthConnection failed\n");
387 /* Get device name (like "radeon") and the ddx version numbers.
388 * We'll check the version in each DRI driver's "createNewScreen"
390 if (!XF86DRIGetClientDriverName(dpy
, scrn
,
393 &ddx_version
.patch
, &driverName
)) {
394 ErrorMessageF("XF86DRIGetClientDriverName failed\n");
398 Xfree(driverName
); /* No longer needed. */
401 * Get device-specific info. pDevPriv will point to a struct
402 * (such as DRIRADEONRec in xfree86/driver/ati/radeon_dri.h) that
403 * has information about the screen size, depth, pitch, ancilliary
404 * buffers, DRM mmap handles, etc.
406 if (!XF86DRIGetDeviceInfo(dpy
, scrn
, &hFB
, &junk
,
407 &framebuffer
.size
, &framebuffer
.stride
,
408 &framebuffer
.dev_priv_size
,
409 &framebuffer
.dev_priv
)) {
410 ErrorMessageF("XF86DRIGetDeviceInfo failed");
414 framebuffer
.width
= DisplayWidth(dpy
, scrn
);
415 framebuffer
.height
= DisplayHeight(dpy
, scrn
);
417 /* Map the framebuffer region. */
418 status
= drmMap(fd
, hFB
, framebuffer
.size
,
419 (drmAddressPtr
) & framebuffer
.base
);
421 ErrorMessageF("drmMap of framebuffer failed (%s)", strerror(-status
));
425 /* Map the SAREA region. Further mmap regions may be setup in
426 * each DRI driver's "createNewScreen" function.
428 status
= drmMap(fd
, hSAREA
, SAREA_MAX
, &pSAREA
);
430 ErrorMessageF("drmMap of SAREA failed (%s)", strerror(-status
));
434 psp
= (*psc
->legacy
->createNewScreen
) (scrn
,
442 &driver_configs
, psc
);
445 ErrorMessageF("Calling driver entry point failed");
449 configs
= driConvertConfigs(psc
->core
, psc
->base
.configs
, driver_configs
);
450 visuals
= driConvertConfigs(psc
->core
, psc
->base
.visuals
, driver_configs
);
452 if (!configs
|| !visuals
)
455 glx_config_destroy_list(psc
->base
.configs
);
456 psc
->base
.configs
= configs
;
457 glx_config_destroy_list(psc
->base
.visuals
);
458 psc
->base
.visuals
= visuals
;
460 psc
->driver_configs
= driver_configs
;
462 /* Visuals with depth != screen depth are subject to automatic compositing
463 * in the X server, so DRI1 can't render to them properly. Mark them as
464 * non-conformant to prevent apps from picking them up accidentally.
466 for (visual
= psc
->base
.visuals
; visual
; visual
= visual
->next
) {
467 XVisualInfo
template;
468 XVisualInfo
*visuals
;
472 template.visualid
= visual
->visualID
;
474 visuals
= XGetVisualInfo(dpy
, mask
, &template, &num_visuals
);
477 if (num_visuals
> 0 && visuals
->depth
!= DefaultDepth(dpy
, scrn
))
478 visual
->visualRating
= GLX_NON_CONFORMANT_CONFIG
;
488 glx_config_destroy_list(configs
);
490 glx_config_destroy_list(visuals
);
492 if (pSAREA
!= MAP_FAILED
)
493 drmUnmap(pSAREA
, SAREA_MAX
);
495 if (framebuffer
.base
!= MAP_FAILED
)
496 drmUnmap((drmAddress
) framebuffer
.base
, framebuffer
.size
);
498 if (framebuffer
.dev_priv
!= NULL
)
499 Xfree(framebuffer
.dev_priv
);
504 XF86DRICloseConnection(dpy
, scrn
);
506 ErrorMessageF("reverting to software direct rendering\n");
512 dri_destroy_context(struct glx_context
* context
)
514 struct dri_context
*pcp
= (struct dri_context
*) context
;
515 struct dri_screen
*psc
= (struct dri_screen
*) context
->psc
;
517 driReleaseDrawables(&pcp
->base
);
520 glx_send_destroy_context(psc
->base
.dpy
, context
->xid
);
522 if (context
->extensions
)
523 XFree((char *) context
->extensions
);
525 (*psc
->core
->destroyContext
) (pcp
->driContext
);
527 XF86DRIDestroyContext(psc
->base
.dpy
, psc
->base
.scr
, pcp
->hwContextID
);
532 dri_bind_context(struct glx_context
*context
, struct glx_context
*old
,
533 GLXDrawable draw
, GLXDrawable read
)
535 struct dri_context
*pcp
= (struct dri_context
*) context
;
536 struct dri_screen
*psc
= (struct dri_screen
*) pcp
->base
.psc
;
537 struct dri_drawable
*pdraw
, *pread
;
539 pdraw
= (struct dri_drawable
*) driFetchDrawable(context
, draw
);
540 pread
= (struct dri_drawable
*) driFetchDrawable(context
, read
);
542 driReleaseDrawables(&pcp
->base
);
544 if (pdraw
== NULL
|| pread
== NULL
)
545 return GLXBadDrawable
;
547 if ((*psc
->core
->bindContext
) (pcp
->driContext
,
548 pdraw
->driDrawable
, pread
->driDrawable
))
551 return GLXBadContext
;
555 dri_unbind_context(struct glx_context
*context
, struct glx_context
*new)
557 struct dri_context
*pcp
= (struct dri_context
*) context
;
558 struct dri_screen
*psc
= (struct dri_screen
*) pcp
->base
.psc
;
560 (*psc
->core
->unbindContext
) (pcp
->driContext
);
563 static const struct glx_context_vtable dri_context_vtable
= {
572 NULL
, /* get_proc_address */
575 static struct glx_context
*
576 dri_create_context(struct glx_screen
*base
,
577 struct glx_config
*config_base
,
578 struct glx_context
*shareList
, int renderType
)
580 struct dri_context
*pcp
, *pcp_shared
;
581 struct dri_screen
*psc
= (struct dri_screen
*) base
;
582 drm_context_t hwContext
;
583 __DRIcontext
*shared
= NULL
;
584 __GLXDRIconfigPrivate
*config
= (__GLXDRIconfigPrivate
*) config_base
;
586 if (!psc
->base
.driScreen
)
590 pcp_shared
= (struct dri_context
*) shareList
;
591 shared
= pcp_shared
->driContext
;
594 pcp
= Xmalloc(sizeof *pcp
);
598 memset(pcp
, 0, sizeof *pcp
);
599 if (!glx_context_init(&pcp
->base
, &psc
->base
, &config
->base
)) {
604 if (!XF86DRICreateContextWithConfig(psc
->base
.dpy
, psc
->base
.scr
,
605 config
->base
.visualID
,
606 &pcp
->hwContextID
, &hwContext
)) {
612 (*psc
->legacy
->createNewContext
) (psc
->driScreen
,
614 renderType
, shared
, hwContext
, pcp
);
615 if (pcp
->driContext
== NULL
) {
616 XF86DRIDestroyContext(psc
->base
.dpy
, psc
->base
.scr
, pcp
->hwContextID
);
621 pcp
->base
.vtable
= &dri_context_vtable
;
627 driDestroyDrawable(__GLXDRIdrawable
* pdraw
)
629 struct dri_screen
*psc
= (struct dri_screen
*) pdraw
->psc
;
630 struct dri_drawable
*pdp
= (struct dri_drawable
*) pdraw
;
632 (*psc
->core
->destroyDrawable
) (pdp
->driDrawable
);
633 XF86DRIDestroyDrawable(psc
->base
.dpy
, psc
->base
.scr
, pdraw
->drawable
);
637 static __GLXDRIdrawable
*
638 driCreateDrawable(struct glx_screen
*base
,
640 GLXDrawable drawable
, struct glx_config
*config_base
)
642 drm_drawable_t hwDrawable
;
643 void *empty_attribute_list
= NULL
;
644 __GLXDRIconfigPrivate
*config
= (__GLXDRIconfigPrivate
*) config_base
;
645 struct dri_screen
*psc
= (struct dri_screen
*) base
;
646 struct dri_drawable
*pdp
;
648 /* Old dri can't handle GLX 1.3+ drawable constructors. */
649 if (xDrawable
!= drawable
)
652 pdp
= Xmalloc(sizeof *pdp
);
656 memset(pdp
, 0, sizeof *pdp
);
657 pdp
->base
.drawable
= drawable
;
658 pdp
->base
.psc
= &psc
->base
;
660 if (!XF86DRICreateDrawable(psc
->base
.dpy
, psc
->base
.scr
,
661 drawable
, &hwDrawable
)) {
666 /* Create a new drawable */
668 (*psc
->legacy
->createNewDrawable
) (psc
->driScreen
,
672 empty_attribute_list
, pdp
);
674 if (!pdp
->driDrawable
) {
675 XF86DRIDestroyDrawable(psc
->base
.dpy
, psc
->base
.scr
, drawable
);
680 pdp
->base
.destroyDrawable
= driDestroyDrawable
;
686 driSwapBuffers(__GLXDRIdrawable
* pdraw
, int64_t unused1
, int64_t unused2
,
689 struct dri_screen
*psc
= (struct dri_screen
*) pdraw
->psc
;
690 struct dri_drawable
*pdp
= (struct dri_drawable
*) pdraw
;
692 (*psc
->core
->swapBuffers
) (pdp
->driDrawable
);
697 driCopySubBuffer(__GLXDRIdrawable
* pdraw
,
698 int x
, int y
, int width
, int height
)
700 struct dri_drawable
*pdp
= (struct dri_drawable
*) pdraw
;
701 struct dri_screen
*psc
= (struct dri_screen
*) pdp
->base
.psc
;
703 (*psc
->driCopySubBuffer
->copySubBuffer
) (pdp
->driDrawable
,
704 x
, y
, width
, height
);
708 driDestroyScreen(struct glx_screen
*base
)
710 struct dri_screen
*psc
= (struct dri_screen
*) base
;
712 /* Free the direct rendering per screen data */
714 (*psc
->core
->destroyScreen
) (psc
->driScreen
);
715 driDestroyConfigs(psc
->driver_configs
);
716 psc
->driScreen
= NULL
;
718 dlclose(psc
->driver
);
721 #ifdef __DRI_SWAP_BUFFER_COUNTER
724 driDrawableGetMSC(struct glx_screen
*base
, __GLXDRIdrawable
*pdraw
,
725 int64_t *ust
, int64_t *msc
, int64_t *sbc
)
727 struct dri_screen
*psc
= (struct dri_screen
*) base
;
728 struct dri_drawable
*pdp
= (struct dri_drawable
*) pdraw
;
730 if (pdp
&& psc
->sbc
&& psc
->msc
)
731 return ( (*psc
->msc
->getMSC
)(psc
->driScreen
, msc
) == 0 &&
732 (*psc
->sbc
->getSBC
)(pdp
->driDrawable
, sbc
) == 0 &&
733 __glXGetUST(ust
) == 0 );
737 driWaitForMSC(__GLXDRIdrawable
*pdraw
, int64_t target_msc
, int64_t divisor
,
738 int64_t remainder
, int64_t *ust
, int64_t *msc
, int64_t *sbc
)
740 struct dri_screen
*psc
= (struct dri_screen
*) pdraw
->psc
;
741 struct dri_drawable
*pdp
= (struct dri_drawable
*) pdraw
;
743 if (pdp
!= NULL
&& psc
->msc
!= NULL
) {
744 ret
= (*psc
->msc
->waitForMSC
) (pdp
->driDrawable
, target_msc
,
745 divisor
, remainder
, msc
, sbc
);
747 /* __glXGetUST returns zero on success and non-zero on failure.
748 * This function returns True on success and False on failure.
750 return ret
== 0 && __glXGetUST(ust
) == 0;
755 driWaitForSBC(__GLXDRIdrawable
*pdraw
, int64_t target_sbc
, int64_t *ust
,
756 int64_t *msc
, int64_t *sbc
)
758 struct dri_drawable
*pdp
= (struct dri_drawable
*) pdraw
;
760 if (pdp
!= NULL
&& psc
->sbc
!= NULL
) {
762 (*psc
->sbc
->waitForSBC
) (pdp
->driDrawable
, target_sbc
, msc
, sbc
);
764 /* __glXGetUST returns zero on success and non-zero on failure.
765 * This function returns True on success and False on failure.
767 return ((ret
== 0) && (__glXGetUST(ust
) == 0));
770 return DRI2WaitSBC(pdp
->base
.psc
->dpy
,
771 pdp
->base
.xDrawable
, target_sbc
, ust
, msc
, sbc
);
777 driSetSwapInterval(__GLXDRIdrawable
*pdraw
, int interval
)
779 struct dri_drawable
*pdp
= (struct dri_drawable
*) pdraw
;
780 struct dri_screen
*psc
= (struct dri_screen
*) pdraw
->psc
;
782 if (psc
->swapControl
!= NULL
&& pdraw
!= NULL
) {
783 psc
->swapControl
->setSwapInterval(pdp
->driDrawable
, interval
);
787 return GLX_BAD_CONTEXT
;
791 driGetSwapInterval(__GLXDRIdrawable
*pdraw
)
793 struct dri_drawable
*pdp
= (struct dri_drawable
*) pdraw
;
794 struct dri_screen
*psc
= (struct dri_screen
*) pdraw
->psc
;
796 if (psc
->swapControl
!= NULL
&& pdraw
!= NULL
)
797 return psc
->swapControl
->getSwapInterval(pdp
->driDrawable
);
802 /* Bind DRI1 specific extensions */
804 driBindExtensions(struct dri_screen
*psc
, const __DRIextension
**extensions
)
808 for (i
= 0; extensions
[i
]; i
++) {
809 /* No DRI2 support for swap_control at the moment, since SwapBuffers
810 * is done by the X server */
811 if (strcmp(extensions
[i
]->name
, __DRI_SWAP_CONTROL
) == 0) {
812 psc
->swapControl
= (__DRIswapControlExtension
*) extensions
[i
];
813 __glXEnableDirectExtension(&psc
->base
, "GLX_SGI_swap_control");
814 __glXEnableDirectExtension(&psc
->base
, "GLX_MESA_swap_control");
817 if (strcmp(extensions
[i
]->name
, __DRI_MEDIA_STREAM_COUNTER
) == 0) {
818 psc
->msc
= (__DRImediaStreamCounterExtension
*) extensions
[i
];
819 __glXEnableDirectExtension(&psc
->base
, "GLX_SGI_video_sync");
822 if (strcmp(extensions
[i
]->name
, __DRI_COPY_SUB_BUFFER
) == 0) {
823 psc
->driCopySubBuffer
= (__DRIcopySubBufferExtension
*) extensions
[i
];
824 __glXEnableDirectExtension(&psc
->base
, "GLX_MESA_copy_sub_buffer");
827 if (strcmp(extensions
[i
]->name
, __DRI_READ_DRAWABLE
) == 0) {
828 __glXEnableDirectExtension(&psc
->base
, "GLX_SGI_make_current_read");
830 /* Ignore unknown extensions */
834 static const struct glx_screen_vtable dri_screen_vtable
= {
838 static struct glx_screen
*
839 driCreateScreen(int screen
, struct glx_display
*priv
)
841 struct dri_display
*pdp
;
843 const __DRIextension
**extensions
;
844 struct dri_screen
*psc
;
848 psc
= Xcalloc(1, sizeof *psc
);
852 memset(psc
, 0, sizeof *psc
);
853 if (!glx_screen_init(&psc
->base
, screen
, priv
)) {
858 if (!driGetDriverName(priv
->dpy
, screen
, &driverName
)) {
862 psc
->driver
= driOpenDriver(driverName
);
864 if (psc
->driver
== NULL
)
867 extensions
= dlsym(psc
->driver
, __DRI_DRIVER_EXTENSIONS
);
868 if (extensions
== NULL
) {
869 ErrorMessageF("driver exports no extensions (%s)\n", dlerror());
873 for (i
= 0; extensions
[i
]; i
++) {
874 if (strcmp(extensions
[i
]->name
, __DRI_CORE
) == 0)
875 psc
->core
= (__DRIcoreExtension
*) extensions
[i
];
876 if (strcmp(extensions
[i
]->name
, __DRI_LEGACY
) == 0)
877 psc
->legacy
= (__DRIlegacyExtension
*) extensions
[i
];
880 if (psc
->core
== NULL
|| psc
->legacy
== NULL
)
883 pdp
= (struct dri_display
*) priv
->driDisplay
;
885 CallCreateNewScreen(psc
->base
.dpy
, screen
, psc
, pdp
);
886 if (psc
->driScreen
== NULL
)
889 extensions
= psc
->core
->getExtensions(psc
->driScreen
);
890 driBindExtensions(psc
, extensions
);
892 psc
->base
.vtable
= &dri_screen_vtable
;
894 psc
->base
.driScreen
= psp
;
895 if (psc
->driCopySubBuffer
)
896 psp
->copySubBuffer
= driCopySubBuffer
;
898 psp
->destroyScreen
= driDestroyScreen
;
899 psp
->createDrawable
= driCreateDrawable
;
900 psp
->swapBuffers
= driSwapBuffers
;
902 #ifdef __DRI_SWAP_BUFFER_COUNTER
903 psp
->getDrawableMSC
= driDrawableGetMSC
;
904 psp
->waitForMSC
= driWaitForMSC
;
905 psp
->waitForSBC
= driWaitForSBC
;
908 psp
->setSwapInterval
= driSetSwapInterval
;
909 psp
->getSwapInterval
= driGetSwapInterval
;
915 dlclose(psc
->driver
);
916 glx_screen_cleanup(&psc
->base
);
922 /* Called from __glXFreeDisplayPrivate.
925 driDestroyDisplay(__GLXDRIdisplay
* dpy
)
931 * Allocate, initialize and return a __DRIdisplayPrivate object.
932 * This is called from __glXInitialize() when we are given a new
935 _X_HIDDEN __GLXDRIdisplay
*
936 driCreateDisplay(Display
* dpy
)
938 struct dri_display
*pdpyp
;
939 int eventBase
, errorBase
;
940 int major
, minor
, patch
;
942 if (!XF86DRIQueryExtension(dpy
, &eventBase
, &errorBase
)) {
946 if (!XF86DRIQueryVersion(dpy
, &major
, &minor
, &patch
)) {
950 pdpyp
= Xmalloc(sizeof *pdpyp
);
955 pdpyp
->driMajor
= major
;
956 pdpyp
->driMinor
= minor
;
957 pdpyp
->driPatch
= patch
;
959 pdpyp
->base
.destroyDisplay
= driDestroyDisplay
;
960 pdpyp
->base
.createScreen
= driCreateScreen
;
965 #endif /* GLX_DIRECT_RENDERING */