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 free(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 free(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 free(framebuffer
.dev_priv
);
503 XF86DRICloseConnection(dpy
, scrn
);
505 ErrorMessageF("reverting to software direct rendering\n");
511 dri_destroy_context(struct glx_context
* context
)
513 struct dri_context
*pcp
= (struct dri_context
*) context
;
514 struct dri_screen
*psc
= (struct dri_screen
*) context
->psc
;
516 driReleaseDrawables(&pcp
->base
);
518 free((char *) context
->extensions
);
520 (*psc
->core
->destroyContext
) (pcp
->driContext
);
522 XF86DRIDestroyContext(psc
->base
.dpy
, psc
->base
.scr
, pcp
->hwContextID
);
527 dri_bind_context(struct glx_context
*context
, struct glx_context
*old
,
528 GLXDrawable draw
, GLXDrawable read
)
530 struct dri_context
*pcp
= (struct dri_context
*) context
;
531 struct dri_screen
*psc
= (struct dri_screen
*) pcp
->base
.psc
;
532 struct dri_drawable
*pdraw
, *pread
;
534 pdraw
= (struct dri_drawable
*) driFetchDrawable(context
, draw
);
535 pread
= (struct dri_drawable
*) driFetchDrawable(context
, read
);
537 driReleaseDrawables(&pcp
->base
);
539 if (pdraw
== NULL
|| pread
== NULL
)
540 return GLXBadDrawable
;
542 if ((*psc
->core
->bindContext
) (pcp
->driContext
,
543 pdraw
->driDrawable
, pread
->driDrawable
))
546 return GLXBadContext
;
550 dri_unbind_context(struct glx_context
*context
, struct glx_context
*new)
552 struct dri_context
*pcp
= (struct dri_context
*) context
;
553 struct dri_screen
*psc
= (struct dri_screen
*) pcp
->base
.psc
;
555 (*psc
->core
->unbindContext
) (pcp
->driContext
);
558 static const struct glx_context_vtable dri_context_vtable
= {
567 NULL
, /* get_proc_address */
570 static struct glx_context
*
571 dri_create_context(struct glx_screen
*base
,
572 struct glx_config
*config_base
,
573 struct glx_context
*shareList
, int renderType
)
575 struct dri_context
*pcp
, *pcp_shared
;
576 struct dri_screen
*psc
= (struct dri_screen
*) base
;
577 drm_context_t hwContext
;
578 __DRIcontext
*shared
= NULL
;
579 __GLXDRIconfigPrivate
*config
= (__GLXDRIconfigPrivate
*) config_base
;
581 if (!psc
->base
.driScreen
)
585 /* If the shareList context is not a DRI context, we cannot possibly
586 * create a DRI context that shares it.
588 if (shareList
->vtable
->destroy
!= dri_destroy_context
) {
592 pcp_shared
= (struct dri_context
*) shareList
;
593 shared
= pcp_shared
->driContext
;
596 pcp
= malloc(sizeof *pcp
);
600 memset(pcp
, 0, sizeof *pcp
);
601 if (!glx_context_init(&pcp
->base
, &psc
->base
, &config
->base
)) {
606 if (!XF86DRICreateContextWithConfig(psc
->base
.dpy
, psc
->base
.scr
,
607 config
->base
.visualID
,
608 &pcp
->hwContextID
, &hwContext
)) {
614 (*psc
->legacy
->createNewContext
) (psc
->driScreen
,
616 renderType
, shared
, hwContext
, pcp
);
617 if (pcp
->driContext
== NULL
) {
618 XF86DRIDestroyContext(psc
->base
.dpy
, psc
->base
.scr
, pcp
->hwContextID
);
623 pcp
->base
.vtable
= &dri_context_vtable
;
629 driDestroyDrawable(__GLXDRIdrawable
* pdraw
)
631 struct dri_screen
*psc
= (struct dri_screen
*) pdraw
->psc
;
632 struct dri_drawable
*pdp
= (struct dri_drawable
*) pdraw
;
634 (*psc
->core
->destroyDrawable
) (pdp
->driDrawable
);
635 XF86DRIDestroyDrawable(psc
->base
.dpy
, psc
->base
.scr
, pdraw
->drawable
);
639 static __GLXDRIdrawable
*
640 driCreateDrawable(struct glx_screen
*base
,
642 GLXDrawable drawable
, struct glx_config
*config_base
)
644 drm_drawable_t hwDrawable
;
645 void *empty_attribute_list
= NULL
;
646 __GLXDRIconfigPrivate
*config
= (__GLXDRIconfigPrivate
*) config_base
;
647 struct dri_screen
*psc
= (struct dri_screen
*) base
;
648 struct dri_drawable
*pdp
;
650 /* Old dri can't handle GLX 1.3+ drawable constructors. */
651 if (xDrawable
!= drawable
)
654 pdp
= malloc(sizeof *pdp
);
658 memset(pdp
, 0, sizeof *pdp
);
659 pdp
->base
.drawable
= drawable
;
660 pdp
->base
.psc
= &psc
->base
;
662 if (!XF86DRICreateDrawable(psc
->base
.dpy
, psc
->base
.scr
,
663 drawable
, &hwDrawable
)) {
668 /* Create a new drawable */
670 (*psc
->legacy
->createNewDrawable
) (psc
->driScreen
,
674 empty_attribute_list
, pdp
);
676 if (!pdp
->driDrawable
) {
677 XF86DRIDestroyDrawable(psc
->base
.dpy
, psc
->base
.scr
, drawable
);
682 pdp
->base
.destroyDrawable
= driDestroyDrawable
;
688 driSwapBuffers(__GLXDRIdrawable
* pdraw
, int64_t unused1
, int64_t unused2
,
691 struct dri_screen
*psc
= (struct dri_screen
*) pdraw
->psc
;
692 struct dri_drawable
*pdp
= (struct dri_drawable
*) pdraw
;
694 (*psc
->core
->swapBuffers
) (pdp
->driDrawable
);
699 driCopySubBuffer(__GLXDRIdrawable
* pdraw
,
700 int x
, int y
, int width
, int height
)
702 struct dri_drawable
*pdp
= (struct dri_drawable
*) pdraw
;
703 struct dri_screen
*psc
= (struct dri_screen
*) pdp
->base
.psc
;
705 (*psc
->driCopySubBuffer
->copySubBuffer
) (pdp
->driDrawable
,
706 x
, y
, width
, height
);
710 driDestroyScreen(struct glx_screen
*base
)
712 struct dri_screen
*psc
= (struct dri_screen
*) base
;
714 /* Free the direct rendering per screen data */
716 (*psc
->core
->destroyScreen
) (psc
->driScreen
);
717 driDestroyConfigs(psc
->driver_configs
);
718 psc
->driScreen
= NULL
;
720 dlclose(psc
->driver
);
723 #ifdef __DRI_SWAP_BUFFER_COUNTER
726 driDrawableGetMSC(struct glx_screen
*base
, __GLXDRIdrawable
*pdraw
,
727 int64_t *ust
, int64_t *msc
, int64_t *sbc
)
729 struct dri_screen
*psc
= (struct dri_screen
*) base
;
730 struct dri_drawable
*pdp
= (struct dri_drawable
*) pdraw
;
732 if (pdp
&& psc
->sbc
&& psc
->msc
)
733 return ( (*psc
->msc
->getMSC
)(psc
->driScreen
, msc
) == 0 &&
734 (*psc
->sbc
->getSBC
)(pdp
->driDrawable
, sbc
) == 0 &&
735 __glXGetUST(ust
) == 0 );
739 driWaitForMSC(__GLXDRIdrawable
*pdraw
, int64_t target_msc
, int64_t divisor
,
740 int64_t remainder
, int64_t *ust
, int64_t *msc
, int64_t *sbc
)
742 struct dri_screen
*psc
= (struct dri_screen
*) pdraw
->psc
;
743 struct dri_drawable
*pdp
= (struct dri_drawable
*) pdraw
;
745 if (pdp
!= NULL
&& psc
->msc
!= NULL
) {
746 ret
= (*psc
->msc
->waitForMSC
) (pdp
->driDrawable
, target_msc
,
747 divisor
, remainder
, msc
, sbc
);
749 /* __glXGetUST returns zero on success and non-zero on failure.
750 * This function returns True on success and False on failure.
752 return ret
== 0 && __glXGetUST(ust
) == 0;
757 driWaitForSBC(__GLXDRIdrawable
*pdraw
, int64_t target_sbc
, int64_t *ust
,
758 int64_t *msc
, int64_t *sbc
)
760 struct dri_drawable
*pdp
= (struct dri_drawable
*) pdraw
;
762 if (pdp
!= NULL
&& psc
->sbc
!= NULL
) {
764 (*psc
->sbc
->waitForSBC
) (pdp
->driDrawable
, target_sbc
, msc
, sbc
);
766 /* __glXGetUST returns zero on success and non-zero on failure.
767 * This function returns True on success and False on failure.
769 return ((ret
== 0) && (__glXGetUST(ust
) == 0));
772 return DRI2WaitSBC(pdp
->base
.psc
->dpy
,
773 pdp
->base
.xDrawable
, target_sbc
, ust
, msc
, sbc
);
779 driSetSwapInterval(__GLXDRIdrawable
*pdraw
, int interval
)
781 struct dri_drawable
*pdp
= (struct dri_drawable
*) pdraw
;
782 struct dri_screen
*psc
= (struct dri_screen
*) pdraw
->psc
;
784 if (psc
->swapControl
!= NULL
&& pdraw
!= NULL
) {
785 psc
->swapControl
->setSwapInterval(pdp
->driDrawable
, interval
);
789 return GLX_BAD_CONTEXT
;
793 driGetSwapInterval(__GLXDRIdrawable
*pdraw
)
795 struct dri_drawable
*pdp
= (struct dri_drawable
*) pdraw
;
796 struct dri_screen
*psc
= (struct dri_screen
*) pdraw
->psc
;
798 if (psc
->swapControl
!= NULL
&& pdraw
!= NULL
)
799 return psc
->swapControl
->getSwapInterval(pdp
->driDrawable
);
804 /* Bind DRI1 specific extensions */
806 driBindExtensions(struct dri_screen
*psc
, const __DRIextension
**extensions
)
810 for (i
= 0; extensions
[i
]; i
++) {
811 /* No DRI2 support for swap_control at the moment, since SwapBuffers
812 * is done by the X server */
813 if (strcmp(extensions
[i
]->name
, __DRI_SWAP_CONTROL
) == 0) {
814 psc
->swapControl
= (__DRIswapControlExtension
*) extensions
[i
];
815 __glXEnableDirectExtension(&psc
->base
, "GLX_SGI_swap_control");
816 __glXEnableDirectExtension(&psc
->base
, "GLX_MESA_swap_control");
819 if (strcmp(extensions
[i
]->name
, __DRI_MEDIA_STREAM_COUNTER
) == 0) {
820 psc
->msc
= (__DRImediaStreamCounterExtension
*) extensions
[i
];
821 __glXEnableDirectExtension(&psc
->base
, "GLX_SGI_video_sync");
824 if (strcmp(extensions
[i
]->name
, __DRI_COPY_SUB_BUFFER
) == 0) {
825 psc
->driCopySubBuffer
= (__DRIcopySubBufferExtension
*) extensions
[i
];
826 __glXEnableDirectExtension(&psc
->base
, "GLX_MESA_copy_sub_buffer");
829 if (strcmp(extensions
[i
]->name
, __DRI_READ_DRAWABLE
) == 0) {
830 __glXEnableDirectExtension(&psc
->base
, "GLX_SGI_make_current_read");
832 /* Ignore unknown extensions */
836 static const struct glx_screen_vtable dri_screen_vtable
= {
841 static struct glx_screen
*
842 driCreateScreen(int screen
, struct glx_display
*priv
)
844 struct dri_display
*pdp
;
846 const __DRIextension
**extensions
;
847 struct dri_screen
*psc
;
851 psc
= calloc(1, sizeof *psc
);
855 memset(psc
, 0, sizeof *psc
);
856 if (!glx_screen_init(&psc
->base
, screen
, priv
)) {
861 if (!driGetDriverName(priv
->dpy
, screen
, &driverName
)) {
865 psc
->driver
= driOpenDriver(driverName
);
867 if (psc
->driver
== NULL
)
870 extensions
= dlsym(psc
->driver
, __DRI_DRIVER_EXTENSIONS
);
871 if (extensions
== NULL
) {
872 ErrorMessageF("driver exports no extensions (%s)\n", dlerror());
876 for (i
= 0; extensions
[i
]; i
++) {
877 if (strcmp(extensions
[i
]->name
, __DRI_CORE
) == 0)
878 psc
->core
= (__DRIcoreExtension
*) extensions
[i
];
879 if (strcmp(extensions
[i
]->name
, __DRI_LEGACY
) == 0)
880 psc
->legacy
= (__DRIlegacyExtension
*) extensions
[i
];
883 if (psc
->core
== NULL
|| psc
->legacy
== NULL
)
886 pdp
= (struct dri_display
*) priv
->driDisplay
;
888 CallCreateNewScreen(psc
->base
.dpy
, screen
, psc
, pdp
);
889 if (psc
->driScreen
== NULL
)
892 extensions
= psc
->core
->getExtensions(psc
->driScreen
);
893 driBindExtensions(psc
, extensions
);
895 psc
->base
.vtable
= &dri_screen_vtable
;
897 psc
->base
.driScreen
= psp
;
898 if (psc
->driCopySubBuffer
)
899 psp
->copySubBuffer
= driCopySubBuffer
;
901 psp
->destroyScreen
= driDestroyScreen
;
902 psp
->createDrawable
= driCreateDrawable
;
903 psp
->swapBuffers
= driSwapBuffers
;
905 #ifdef __DRI_SWAP_BUFFER_COUNTER
906 psp
->getDrawableMSC
= driDrawableGetMSC
;
907 psp
->waitForMSC
= driWaitForMSC
;
908 psp
->waitForSBC
= driWaitForSBC
;
911 psp
->setSwapInterval
= driSetSwapInterval
;
912 psp
->getSwapInterval
= driGetSwapInterval
;
917 CriticalErrorMessageF("failed to load driver: %s\n", driverName
);
920 dlclose(psc
->driver
);
921 glx_screen_cleanup(&psc
->base
);
927 /* Called from __glXFreeDisplayPrivate.
930 driDestroyDisplay(__GLXDRIdisplay
* dpy
)
936 * Allocate, initialize and return a __DRIdisplayPrivate object.
937 * This is called from __glXInitialize() when we are given a new
940 _X_HIDDEN __GLXDRIdisplay
*
941 driCreateDisplay(Display
* dpy
)
943 struct dri_display
*pdpyp
;
944 int eventBase
, errorBase
;
945 int major
, minor
, patch
;
947 if (!XF86DRIQueryExtension(dpy
, &eventBase
, &errorBase
)) {
951 if (!XF86DRIQueryVersion(dpy
, &major
, &minor
, &patch
)) {
955 pdpyp
= malloc(sizeof *pdpyp
);
960 pdpyp
->driMajor
= major
;
961 pdpyp
->driMinor
= minor
;
962 pdpyp
->driPatch
= patch
;
964 pdpyp
->base
.destroyDisplay
= driDestroyDisplay
;
965 pdpyp
->base
.createScreen
= driCreateScreen
;
970 #endif /* GLX_DIRECT_RENDERING */