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. "r128", "tdfx", 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
;
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 "tdfx") 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");
450 driConvertConfigs(psc
->core
, psc
->base
.configs
, driver_configs
);
452 driConvertConfigs(psc
->core
, psc
->base
.visuals
, driver_configs
);
454 psc
->driver_configs
= driver_configs
;
456 /* Visuals with depth != screen depth are subject to automatic compositing
457 * in the X server, so DRI1 can't render to them properly. Mark them as
458 * non-conformant to prevent apps from picking them up accidentally.
460 for (visual
= psc
->base
.visuals
; visual
; visual
= visual
->next
) {
461 XVisualInfo
template;
462 XVisualInfo
*visuals
;
466 template.visualid
= visual
->visualID
;
468 visuals
= XGetVisualInfo(dpy
, mask
, &template, &num_visuals
);
471 if (num_visuals
> 0 && visuals
->depth
!= DefaultDepth(dpy
, scrn
))
472 visual
->visualRating
= GLX_NON_CONFORMANT_CONFIG
;
481 if (pSAREA
!= MAP_FAILED
)
482 drmUnmap(pSAREA
, SAREA_MAX
);
484 if (framebuffer
.base
!= MAP_FAILED
)
485 drmUnmap((drmAddress
) framebuffer
.base
, framebuffer
.size
);
487 if (framebuffer
.dev_priv
!= NULL
)
488 Xfree(framebuffer
.dev_priv
);
493 XF86DRICloseConnection(dpy
, scrn
);
495 ErrorMessageF("reverting to software direct rendering\n");
501 dri_destroy_context(struct glx_context
* context
)
503 struct dri_context
*pcp
= (struct dri_context
*) context
;
504 struct dri_screen
*psc
= (struct dri_screen
*) context
->psc
;
506 driReleaseDrawables(&pcp
->base
);
509 glx_send_destroy_context(psc
->base
.dpy
, context
->xid
);
511 if (context
->extensions
)
512 XFree((char *) context
->extensions
);
514 (*psc
->core
->destroyContext
) (pcp
->driContext
);
516 XF86DRIDestroyContext(psc
->base
.dpy
, psc
->base
.scr
, pcp
->hwContextID
);
521 dri_bind_context(struct glx_context
*context
, struct glx_context
*old
,
522 GLXDrawable draw
, GLXDrawable read
)
524 struct dri_context
*pcp
= (struct dri_context
*) context
;
525 struct dri_screen
*psc
= (struct dri_screen
*) pcp
->base
.psc
;
526 struct dri_drawable
*pdraw
, *pread
;
528 pdraw
= (struct dri_drawable
*) driFetchDrawable(context
, draw
);
529 pread
= (struct dri_drawable
*) driFetchDrawable(context
, read
);
531 driReleaseDrawables(&pcp
->base
);
533 if (pdraw
== NULL
|| pread
== NULL
)
534 return GLXBadDrawable
;
536 if ((*psc
->core
->bindContext
) (pcp
->driContext
,
537 pdraw
->driDrawable
, pread
->driDrawable
))
540 return GLXBadContext
;
544 dri_unbind_context(struct glx_context
*context
, struct glx_context
*new)
546 struct dri_context
*pcp
= (struct dri_context
*) context
;
547 struct dri_screen
*psc
= (struct dri_screen
*) pcp
->base
.psc
;
549 (*psc
->core
->unbindContext
) (pcp
->driContext
);
552 static const struct glx_context_vtable dri_context_vtable
= {
563 static struct glx_context
*
564 dri_create_context(struct glx_screen
*base
,
565 struct glx_config
*config_base
,
566 struct glx_context
*shareList
, int renderType
)
568 struct dri_context
*pcp
, *pcp_shared
;
569 struct dri_screen
*psc
= (struct dri_screen
*) base
;
570 drm_context_t hwContext
;
571 __DRIcontext
*shared
= NULL
;
572 __GLXDRIconfigPrivate
*config
= (__GLXDRIconfigPrivate
*) config_base
;
574 if (!psc
->base
.driScreen
)
578 pcp_shared
= (struct dri_context
*) shareList
;
579 shared
= pcp_shared
->driContext
;
582 pcp
= Xmalloc(sizeof *pcp
);
586 memset(pcp
, 0, sizeof *pcp
);
587 if (!glx_context_init(&pcp
->base
, &psc
->base
, &config
->base
)) {
592 if (!XF86DRICreateContextWithConfig(psc
->base
.dpy
, psc
->base
.scr
,
593 config
->base
.visualID
,
594 &pcp
->hwContextID
, &hwContext
)) {
600 (*psc
->legacy
->createNewContext
) (psc
->driScreen
,
602 renderType
, shared
, hwContext
, pcp
);
603 if (pcp
->driContext
== NULL
) {
604 XF86DRIDestroyContext(psc
->base
.dpy
, psc
->base
.scr
, pcp
->hwContextID
);
609 pcp
->base
.vtable
= &dri_context_vtable
;
615 driDestroyDrawable(__GLXDRIdrawable
* pdraw
)
617 struct dri_screen
*psc
= (struct dri_screen
*) pdraw
->psc
;
618 struct dri_drawable
*pdp
= (struct dri_drawable
*) pdraw
;
620 (*psc
->core
->destroyDrawable
) (pdp
->driDrawable
);
621 XF86DRIDestroyDrawable(psc
->base
.dpy
, psc
->base
.scr
, pdraw
->drawable
);
625 static __GLXDRIdrawable
*
626 driCreateDrawable(struct glx_screen
*base
,
628 GLXDrawable drawable
, struct glx_config
*config_base
)
630 drm_drawable_t hwDrawable
;
631 void *empty_attribute_list
= NULL
;
632 __GLXDRIconfigPrivate
*config
= (__GLXDRIconfigPrivate
*) config_base
;
633 struct dri_screen
*psc
= (struct dri_screen
*) base
;
634 struct dri_drawable
*pdp
;
636 /* Old dri can't handle GLX 1.3+ drawable constructors. */
637 if (xDrawable
!= drawable
)
640 pdp
= Xmalloc(sizeof *pdp
);
644 memset(pdp
, 0, sizeof *pdp
);
645 pdp
->base
.drawable
= drawable
;
646 pdp
->base
.psc
= &psc
->base
;
648 if (!XF86DRICreateDrawable(psc
->base
.dpy
, psc
->base
.scr
,
649 drawable
, &hwDrawable
)) {
654 /* Create a new drawable */
656 (*psc
->legacy
->createNewDrawable
) (psc
->driScreen
,
660 empty_attribute_list
, pdp
);
662 if (!pdp
->driDrawable
) {
663 XF86DRIDestroyDrawable(psc
->base
.dpy
, psc
->base
.scr
, drawable
);
668 pdp
->base
.destroyDrawable
= driDestroyDrawable
;
674 driSwapBuffers(__GLXDRIdrawable
* pdraw
, int64_t unused1
, int64_t unused2
,
677 struct dri_screen
*psc
= (struct dri_screen
*) pdraw
->psc
;
678 struct dri_drawable
*pdp
= (struct dri_drawable
*) pdraw
;
680 (*psc
->core
->swapBuffers
) (pdp
->driDrawable
);
685 driCopySubBuffer(__GLXDRIdrawable
* pdraw
,
686 int x
, int y
, int width
, int height
)
688 struct dri_drawable
*pdp
= (struct dri_drawable
*) pdraw
;
689 struct dri_screen
*psc
= (struct dri_screen
*) pdp
->base
.psc
;
691 (*psc
->driCopySubBuffer
->copySubBuffer
) (pdp
->driDrawable
,
692 x
, y
, width
, height
);
696 driDestroyScreen(struct glx_screen
*base
)
698 struct dri_screen
*psc
= (struct dri_screen
*) base
;
700 /* Free the direct rendering per screen data */
702 (*psc
->core
->destroyScreen
) (psc
->driScreen
);
703 driDestroyConfigs(psc
->driver_configs
);
704 psc
->driScreen
= NULL
;
706 dlclose(psc
->driver
);
709 #ifdef __DRI_SWAP_BUFFER_COUNTER
712 driDrawableGetMSC(struct glx_screen
*base
, __GLXDRIdrawable
*pdraw
,
713 int64_t *ust
, int64_t *msc
, int64_t *sbc
)
715 struct dri_screen
*psc
= (struct dri_screen
*) base
;
716 struct dri_drawable
*pdp
= (struct dri_drawable
*) pdraw
;
718 if (pdp
&& psc
->sbc
&& psc
->msc
)
719 return ( (*psc
->msc
->getMSC
)(psc
->driScreen
, msc
) == 0 &&
720 (*psc
->sbc
->getSBC
)(pdp
->driDrawable
, sbc
) == 0 &&
721 __glXGetUST(ust
) == 0 );
725 driWaitForMSC(__GLXDRIdrawable
*pdraw
, int64_t target_msc
, int64_t divisor
,
726 int64_t remainder
, int64_t *ust
, int64_t *msc
, int64_t *sbc
)
728 struct dri_screen
*psc
= (struct dri_screen
*) pdraw
->psc
;
729 struct dri_drawable
*pdp
= (struct dri_drawable
*) pdraw
;
731 if (pdp
!= NULL
&& psc
->msc
!= NULL
) {
732 ret
= (*psc
->msc
->waitForMSC
) (pdp
->driDrawable
, target_msc
,
733 divisor
, remainder
, msc
, sbc
);
735 /* __glXGetUST returns zero on success and non-zero on failure.
736 * This function returns True on success and False on failure.
738 return ret
== 0 && __glXGetUST(ust
) == 0;
743 driWaitForSBC(__GLXDRIdrawable
*pdraw
, int64_t target_sbc
, int64_t *ust
,
744 int64_t *msc
, int64_t *sbc
)
746 struct dri_drawable
*pdp
= (struct dri_drawable
*) pdraw
;
748 if (pdp
!= NULL
&& psc
->sbc
!= NULL
) {
750 (*psc
->sbc
->waitForSBC
) (pdp
->driDrawable
, target_sbc
, msc
, sbc
);
752 /* __glXGetUST returns zero on success and non-zero on failure.
753 * This function returns True on success and False on failure.
755 return ((ret
== 0) && (__glXGetUST(ust
) == 0));
758 return DRI2WaitSBC(pdp
->base
.psc
->dpy
,
759 pdp
->base
.xDrawable
, target_sbc
, ust
, msc
, sbc
);
765 driSetSwapInterval(__GLXDRIdrawable
*pdraw
, int interval
)
767 struct dri_drawable
*pdp
= (struct dri_drawable
*) pdraw
;
768 struct dri_screen
*psc
= (struct dri_screen
*) pdraw
->psc
;
770 if (psc
->swapControl
!= NULL
&& pdraw
!= NULL
) {
771 psc
->swapControl
->setSwapInterval(pdp
->driDrawable
, interval
);
775 return GLX_BAD_CONTEXT
;
779 driGetSwapInterval(__GLXDRIdrawable
*pdraw
)
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 return psc
->swapControl
->getSwapInterval(pdp
->driDrawable
);
790 /* Bind DRI1 specific extensions */
792 driBindExtensions(struct dri_screen
*psc
, const __DRIextension
**extensions
)
796 for (i
= 0; extensions
[i
]; i
++) {
797 /* No DRI2 support for swap_control at the moment, since SwapBuffers
798 * is done by the X server */
799 if (strcmp(extensions
[i
]->name
, __DRI_SWAP_CONTROL
) == 0) {
800 psc
->swapControl
= (__DRIswapControlExtension
*) extensions
[i
];
801 __glXEnableDirectExtension(&psc
->base
, "GLX_SGI_swap_control");
802 __glXEnableDirectExtension(&psc
->base
, "GLX_MESA_swap_control");
805 if (strcmp(extensions
[i
]->name
, __DRI_MEDIA_STREAM_COUNTER
) == 0) {
806 psc
->msc
= (__DRImediaStreamCounterExtension
*) extensions
[i
];
807 __glXEnableDirectExtension(&psc
->base
, "GLX_SGI_video_sync");
810 if (strcmp(extensions
[i
]->name
, __DRI_COPY_SUB_BUFFER
) == 0) {
811 psc
->driCopySubBuffer
= (__DRIcopySubBufferExtension
*) extensions
[i
];
812 __glXEnableDirectExtension(&psc
->base
, "GLX_MESA_copy_sub_buffer");
815 if (strcmp(extensions
[i
]->name
, __DRI_READ_DRAWABLE
) == 0) {
816 __glXEnableDirectExtension(&psc
->base
, "GLX_SGI_make_current_read");
818 /* Ignore unknown extensions */
822 static const struct glx_screen_vtable dri_screen_vtable
= {
826 static struct glx_screen
*
827 driCreateScreen(int screen
, struct glx_display
*priv
)
829 struct dri_display
*pdp
;
831 const __DRIextension
**extensions
;
832 struct dri_screen
*psc
;
836 psc
= Xcalloc(1, sizeof *psc
);
840 memset(psc
, 0, sizeof *psc
);
841 if (!glx_screen_init(&psc
->base
, screen
, priv
)) {
846 if (!driGetDriverName(priv
->dpy
, screen
, &driverName
)) {
850 psc
->driver
= driOpenDriver(driverName
);
852 if (psc
->driver
== NULL
)
855 extensions
= dlsym(psc
->driver
, __DRI_DRIVER_EXTENSIONS
);
856 if (extensions
== NULL
) {
857 ErrorMessageF("driver exports no extensions (%s)\n", dlerror());
861 for (i
= 0; extensions
[i
]; i
++) {
862 if (strcmp(extensions
[i
]->name
, __DRI_CORE
) == 0)
863 psc
->core
= (__DRIcoreExtension
*) extensions
[i
];
864 if (strcmp(extensions
[i
]->name
, __DRI_LEGACY
) == 0)
865 psc
->legacy
= (__DRIlegacyExtension
*) extensions
[i
];
868 if (psc
->core
== NULL
|| psc
->legacy
== NULL
)
871 pdp
= (struct dri_display
*) priv
->driDisplay
;
873 CallCreateNewScreen(psc
->base
.dpy
, screen
, psc
, pdp
);
874 if (psc
->driScreen
== NULL
)
877 extensions
= psc
->core
->getExtensions(psc
->driScreen
);
878 driBindExtensions(psc
, extensions
);
880 psc
->base
.vtable
= &dri_screen_vtable
;
882 psc
->base
.driScreen
= psp
;
883 if (psc
->driCopySubBuffer
)
884 psp
->copySubBuffer
= driCopySubBuffer
;
886 psp
->destroyScreen
= driDestroyScreen
;
887 psp
->createDrawable
= driCreateDrawable
;
888 psp
->swapBuffers
= driSwapBuffers
;
890 #ifdef __DRI_SWAP_BUFFER_COUNTER
891 psp
->getDrawableMSC
= driDrawableGetMSC
;
892 psp
->waitForMSC
= driWaitForMSC
;
893 psp
->waitForSBC
= driWaitForSBC
;
896 psp
->setSwapInterval
= driSetSwapInterval
;
897 psp
->getSwapInterval
= driGetSwapInterval
;
903 dlclose(psc
->driver
);
904 glx_screen_cleanup(&psc
->base
);
910 /* Called from __glXFreeDisplayPrivate.
913 driDestroyDisplay(__GLXDRIdisplay
* dpy
)
919 * Allocate, initialize and return a __DRIdisplayPrivate object.
920 * This is called from __glXInitialize() when we are given a new
923 _X_HIDDEN __GLXDRIdisplay
*
924 driCreateDisplay(Display
* dpy
)
926 struct dri_display
*pdpyp
;
927 int eventBase
, errorBase
;
928 int major
, minor
, patch
;
930 if (!XF86DRIQueryExtension(dpy
, &eventBase
, &errorBase
)) {
934 if (!XF86DRIQueryVersion(dpy
, &major
, &minor
, &patch
)) {
938 pdpyp
= Xmalloc(sizeof *pdpyp
);
943 pdpyp
->driMajor
= major
;
944 pdpyp
->driMinor
= minor
;
945 pdpyp
->driPatch
= patch
;
947 pdpyp
->base
.destroyDisplay
= driDestroyDisplay
;
948 pdpyp
->base
.createScreen
= driCreateScreen
;
953 #endif /* GLX_DIRECT_RENDERING */