2 * Copyright © 2008 Red Hat, Inc.
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Soft-
6 * ware"), to deal in the Software without restriction, including without
7 * limitation the rights to use, copy, modify, merge, publish, distribute,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, provided that the above copyright
10 * notice(s) and this permission notice appear in all copies of the Soft-
11 * ware and that both the above copyright notice(s) and this permission
12 * notice appear in supporting documentation.
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
15 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL-
16 * ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY
17 * RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN
18 * THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSE-
19 * QUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
20 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
21 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFOR-
22 * MANCE OF THIS SOFTWARE.
24 * Except as contained in this notice, the name of a copyright holder shall
25 * not be used in advertising or otherwise to promote the sale, use or
26 * other dealings in this Software without prior written authorization of
27 * the copyright holder.
30 * Kristian Høgsberg (krh@redhat.com)
33 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
36 #include <X11/extensions/Xfixes.h>
37 #include <X11/Xlib-xcb.h>
41 #include "glxclient.h"
42 #include <X11/extensions/dri2proto.h>
47 #include <sys/types.h>
52 #include "dri_common.h"
54 /* From xmlpool/options.h, user exposed so should be stable */
55 #define DRI_CONF_VBLANK_NEVER 0
56 #define DRI_CONF_VBLANK_DEF_INTERVAL_0 1
57 #define DRI_CONF_VBLANK_DEF_INTERVAL_1 2
58 #define DRI_CONF_VBLANK_ALWAYS_SYNC 3
68 ** XFree86-DRI version information
74 int invalidateAvailable
;
76 __glxHashTable
*dri2Hash
;
78 const __DRIextension
*loader_extensions
[4];
82 struct glx_screen base
;
84 __DRIscreen
*driScreen
;
85 __GLXDRIscreen vtable
;
86 const __DRIdri2Extension
*dri2
;
87 const __DRIcoreExtension
*core
;
89 const __DRI2flushExtension
*f
;
90 const __DRI2configQueryExtension
*config
;
91 const __DRItexBufferExtension
*texBuffer
;
92 const __DRI2throttleExtension
*throttle
;
93 const __DRIconfig
**driver_configs
;
103 struct glx_context base
;
104 __DRIcontext
*driContext
;
109 __GLXDRIdrawable base
;
110 __DRIdrawable
*driDrawable
;
111 __DRIbuffer buffers
[5];
118 uint64_t previous_time
;
122 static const struct glx_context_vtable dri2_context_vtable
;
124 /* For XCB's handling of ust/msc/sbc counters, we have to hand it the high and
125 * low halves separately. This helps you split them.
128 split_counter(uint64_t counter
, uint32_t *hi
, uint32_t *lo
)
130 *hi
= (counter
>> 32);
131 *lo
= counter
& 0xffffffff;
135 merge_counter(uint32_t hi
, uint32_t lo
)
137 return ((uint64_t)hi
<< 32) | lo
;
141 dri2_destroy_context(struct glx_context
*context
)
143 struct dri2_context
*pcp
= (struct dri2_context
*) context
;
144 struct dri2_screen
*psc
= (struct dri2_screen
*) context
->psc
;
146 driReleaseDrawables(&pcp
->base
);
148 free((char *) context
->extensions
);
150 (*psc
->core
->destroyContext
) (pcp
->driContext
);
156 dri2_bind_context(struct glx_context
*context
, struct glx_context
*old
,
157 GLXDrawable draw
, GLXDrawable read
)
159 struct dri2_context
*pcp
= (struct dri2_context
*) context
;
160 struct dri2_screen
*psc
= (struct dri2_screen
*) pcp
->base
.psc
;
161 struct dri2_drawable
*pdraw
, *pread
;
162 struct dri2_display
*pdp
;
164 pdraw
= (struct dri2_drawable
*) driFetchDrawable(context
, draw
);
165 pread
= (struct dri2_drawable
*) driFetchDrawable(context
, read
);
167 driReleaseDrawables(&pcp
->base
);
169 if (pdraw
== NULL
|| pread
== NULL
)
170 return GLXBadDrawable
;
172 if (!(*psc
->core
->bindContext
) (pcp
->driContext
,
173 pdraw
->driDrawable
, pread
->driDrawable
))
174 return GLXBadContext
;
176 /* If the server doesn't send invalidate events, we may miss a
177 * resize before the rendering starts. Invalidate the buffers now
178 * so the driver will recheck before rendering starts. */
179 pdp
= (struct dri2_display
*) psc
->base
.display
;
180 if (!pdp
->invalidateAvailable
) {
181 dri2InvalidateBuffers(psc
->base
.dpy
, pdraw
->base
.xDrawable
);
183 dri2InvalidateBuffers(psc
->base
.dpy
, pread
->base
.xDrawable
);
190 dri2_unbind_context(struct glx_context
*context
, struct glx_context
*new)
192 struct dri2_context
*pcp
= (struct dri2_context
*) context
;
193 struct dri2_screen
*psc
= (struct dri2_screen
*) pcp
->base
.psc
;
195 (*psc
->core
->unbindContext
) (pcp
->driContext
);
198 static struct glx_context
*
199 dri2_create_context(struct glx_screen
*base
,
200 struct glx_config
*config_base
,
201 struct glx_context
*shareList
, int renderType
)
203 struct dri2_context
*pcp
, *pcp_shared
;
204 struct dri2_screen
*psc
= (struct dri2_screen
*) base
;
205 __GLXDRIconfigPrivate
*config
= (__GLXDRIconfigPrivate
*) config_base
;
206 __DRIcontext
*shared
= NULL
;
209 /* If the shareList context is not a DRI2 context, we cannot possibly
210 * create a DRI2 context that shares it.
212 if (shareList
->vtable
->destroy
!= dri2_destroy_context
) {
216 pcp_shared
= (struct dri2_context
*) shareList
;
217 shared
= pcp_shared
->driContext
;
220 pcp
= calloc(1, sizeof *pcp
);
224 if (!glx_context_init(&pcp
->base
, &psc
->base
, &config
->base
)) {
230 (*psc
->dri2
->createNewContext
) (psc
->driScreen
,
231 config
->driConfig
, shared
, pcp
);
233 if (pcp
->driContext
== NULL
) {
238 pcp
->base
.vtable
= &dri2_context_vtable
;
243 static struct glx_context
*
244 dri2_create_context_attribs(struct glx_screen
*base
,
245 struct glx_config
*config_base
,
246 struct glx_context
*shareList
,
247 unsigned num_attribs
,
248 const uint32_t *attribs
,
251 struct dri2_context
*pcp
= NULL
;
252 struct dri2_context
*pcp_shared
= NULL
;
253 struct dri2_screen
*psc
= (struct dri2_screen
*) base
;
254 __GLXDRIconfigPrivate
*config
= (__GLXDRIconfigPrivate
*) config_base
;
255 __DRIcontext
*shared
= NULL
;
257 uint32_t minor_ver
= 1;
258 uint32_t major_ver
= 2;
261 int reset
= __DRI_CTX_RESET_NO_NOTIFICATION
;
262 uint32_t ctx_attribs
[2 * 5];
263 unsigned num_ctx_attribs
= 0;
265 if (psc
->dri2
->base
.version
< 3) {
266 *error
= __DRI_CTX_ERROR_NO_MEMORY
;
270 /* Remap the GLX tokens to DRI2 tokens.
272 if (!dri2_convert_glx_attribs(num_attribs
, attribs
,
273 &major_ver
, &minor_ver
, &flags
, &api
, &reset
,
278 pcp_shared
= (struct dri2_context
*) shareList
;
279 shared
= pcp_shared
->driContext
;
282 pcp
= calloc(1, sizeof *pcp
);
284 *error
= __DRI_CTX_ERROR_NO_MEMORY
;
288 if (!glx_context_init(&pcp
->base
, &psc
->base
, &config
->base
))
291 ctx_attribs
[num_ctx_attribs
++] = __DRI_CTX_ATTRIB_MAJOR_VERSION
;
292 ctx_attribs
[num_ctx_attribs
++] = major_ver
;
293 ctx_attribs
[num_ctx_attribs
++] = __DRI_CTX_ATTRIB_MINOR_VERSION
;
294 ctx_attribs
[num_ctx_attribs
++] = minor_ver
;
296 /* Only send a value when the non-default value is requested. By doing
297 * this we don't have to check the driver's DRI2 version before sending the
300 if (reset
!= __DRI_CTX_RESET_NO_NOTIFICATION
) {
301 ctx_attribs
[num_ctx_attribs
++] = __DRI_CTX_ATTRIB_RESET_STRATEGY
;
302 ctx_attribs
[num_ctx_attribs
++] = reset
;
306 ctx_attribs
[num_ctx_attribs
++] = __DRI_CTX_ATTRIB_FLAGS
;
308 /* The current __DRI_CTX_FLAG_* values are identical to the
309 * GLX_CONTEXT_*_BIT values.
311 ctx_attribs
[num_ctx_attribs
++] = flags
;
315 (*psc
->dri2
->createContextAttribs
) (psc
->driScreen
,
324 if (pcp
->driContext
== NULL
)
327 pcp
->base
.vtable
= &dri2_context_vtable
;
338 dri2DestroyDrawable(__GLXDRIdrawable
*base
)
340 struct dri2_screen
*psc
= (struct dri2_screen
*) base
->psc
;
341 struct dri2_drawable
*pdraw
= (struct dri2_drawable
*) base
;
342 struct glx_display
*dpyPriv
= psc
->base
.display
;
343 struct dri2_display
*pdp
= (struct dri2_display
*)dpyPriv
->dri2Display
;
345 __glxHashDelete(pdp
->dri2Hash
, pdraw
->base
.xDrawable
);
346 (*psc
->core
->destroyDrawable
) (pdraw
->driDrawable
);
348 /* If it's a GLX 1.3 drawables, we can destroy the DRI2 drawable
349 * now, as the application explicitly asked to destroy the GLX
350 * drawable. Otherwise, for legacy drawables, we let the DRI2
351 * drawable linger on the server, since there's no good way of
352 * knowing when the application is done with it. The server will
353 * destroy the DRI2 drawable when it destroys the X drawable or the
354 * client exits anyway. */
355 if (pdraw
->base
.xDrawable
!= pdraw
->base
.drawable
)
356 DRI2DestroyDrawable(psc
->base
.dpy
, pdraw
->base
.xDrawable
);
361 static __GLXDRIdrawable
*
362 dri2CreateDrawable(struct glx_screen
*base
, XID xDrawable
,
363 GLXDrawable drawable
, struct glx_config
*config_base
)
365 struct dri2_drawable
*pdraw
;
366 struct dri2_screen
*psc
= (struct dri2_screen
*) base
;
367 __GLXDRIconfigPrivate
*config
= (__GLXDRIconfigPrivate
*) config_base
;
368 struct glx_display
*dpyPriv
;
369 struct dri2_display
*pdp
;
370 GLint vblank_mode
= DRI_CONF_VBLANK_DEF_INTERVAL_1
;
372 pdraw
= calloc(1, sizeof(*pdraw
));
376 pdraw
->base
.destroyDrawable
= dri2DestroyDrawable
;
377 pdraw
->base
.xDrawable
= xDrawable
;
378 pdraw
->base
.drawable
= drawable
;
379 pdraw
->base
.psc
= &psc
->base
;
380 pdraw
->bufferCount
= 0;
381 pdraw
->swap_interval
= 1; /* default may be overridden below */
382 pdraw
->have_back
= 0;
385 psc
->config
->configQueryi(psc
->driScreen
,
386 "vblank_mode", &vblank_mode
);
388 switch (vblank_mode
) {
389 case DRI_CONF_VBLANK_NEVER
:
390 case DRI_CONF_VBLANK_DEF_INTERVAL_0
:
391 pdraw
->swap_interval
= 0;
393 case DRI_CONF_VBLANK_DEF_INTERVAL_1
:
394 case DRI_CONF_VBLANK_ALWAYS_SYNC
:
396 pdraw
->swap_interval
= 1;
400 DRI2CreateDrawable(psc
->base
.dpy
, xDrawable
);
402 dpyPriv
= __glXInitialize(psc
->base
.dpy
);
403 pdp
= (struct dri2_display
*)dpyPriv
->dri2Display
;;
404 /* Create a new drawable */
406 (*psc
->dri2
->createNewDrawable
) (psc
->driScreen
,
407 config
->driConfig
, pdraw
);
409 if (!pdraw
->driDrawable
) {
410 DRI2DestroyDrawable(psc
->base
.dpy
, xDrawable
);
415 if (__glxHashInsert(pdp
->dri2Hash
, xDrawable
, pdraw
)) {
416 (*psc
->core
->destroyDrawable
) (pdraw
->driDrawable
);
417 DRI2DestroyDrawable(psc
->base
.dpy
, xDrawable
);
423 * Make sure server has the same swap interval we do for the new
426 if (psc
->vtable
.setSwapInterval
)
427 psc
->vtable
.setSwapInterval(&pdraw
->base
, pdraw
->swap_interval
);
433 dri2DrawableGetMSC(struct glx_screen
*psc
, __GLXDRIdrawable
*pdraw
,
434 int64_t *ust
, int64_t *msc
, int64_t *sbc
)
436 xcb_connection_t
*c
= XGetXCBConnection(pdraw
->psc
->dpy
);
437 xcb_dri2_get_msc_cookie_t get_msc_cookie
;
438 xcb_dri2_get_msc_reply_t
*get_msc_reply
;
440 get_msc_cookie
= xcb_dri2_get_msc_unchecked(c
, pdraw
->xDrawable
);
441 get_msc_reply
= xcb_dri2_get_msc_reply(c
, get_msc_cookie
, NULL
);
446 *ust
= merge_counter(get_msc_reply
->ust_hi
, get_msc_reply
->ust_lo
);
447 *msc
= merge_counter(get_msc_reply
->msc_hi
, get_msc_reply
->msc_lo
);
448 *sbc
= merge_counter(get_msc_reply
->sbc_hi
, get_msc_reply
->sbc_lo
);
455 dri2WaitForMSC(__GLXDRIdrawable
*pdraw
, int64_t target_msc
, int64_t divisor
,
456 int64_t remainder
, int64_t *ust
, int64_t *msc
, int64_t *sbc
)
458 xcb_connection_t
*c
= XGetXCBConnection(pdraw
->psc
->dpy
);
459 xcb_dri2_wait_msc_cookie_t wait_msc_cookie
;
460 xcb_dri2_wait_msc_reply_t
*wait_msc_reply
;
461 uint32_t target_msc_hi
, target_msc_lo
;
462 uint32_t divisor_hi
, divisor_lo
;
463 uint32_t remainder_hi
, remainder_lo
;
465 split_counter(target_msc
, &target_msc_hi
, &target_msc_lo
);
466 split_counter(divisor
, &divisor_hi
, &divisor_lo
);
467 split_counter(remainder
, &remainder_hi
, &remainder_lo
);
469 wait_msc_cookie
= xcb_dri2_wait_msc_unchecked(c
, pdraw
->xDrawable
,
470 target_msc_hi
, target_msc_lo
,
471 divisor_hi
, divisor_lo
,
472 remainder_hi
, remainder_lo
);
473 wait_msc_reply
= xcb_dri2_wait_msc_reply(c
, wait_msc_cookie
, NULL
);
478 *ust
= merge_counter(wait_msc_reply
->ust_hi
, wait_msc_reply
->ust_lo
);
479 *msc
= merge_counter(wait_msc_reply
->msc_hi
, wait_msc_reply
->msc_lo
);
480 *sbc
= merge_counter(wait_msc_reply
->sbc_hi
, wait_msc_reply
->sbc_lo
);
481 free(wait_msc_reply
);
487 dri2WaitForSBC(__GLXDRIdrawable
*pdraw
, int64_t target_sbc
, int64_t *ust
,
488 int64_t *msc
, int64_t *sbc
)
490 xcb_connection_t
*c
= XGetXCBConnection(pdraw
->psc
->dpy
);
491 xcb_dri2_wait_sbc_cookie_t wait_sbc_cookie
;
492 xcb_dri2_wait_sbc_reply_t
*wait_sbc_reply
;
493 uint32_t target_sbc_hi
, target_sbc_lo
;
495 split_counter(target_sbc
, &target_sbc_hi
, &target_sbc_lo
);
497 wait_sbc_cookie
= xcb_dri2_wait_sbc_unchecked(c
, pdraw
->xDrawable
,
498 target_sbc_hi
, target_sbc_lo
);
499 wait_sbc_reply
= xcb_dri2_wait_sbc_reply(c
, wait_sbc_cookie
, NULL
);
504 *ust
= merge_counter(wait_sbc_reply
->ust_hi
, wait_sbc_reply
->ust_lo
);
505 *msc
= merge_counter(wait_sbc_reply
->msc_hi
, wait_sbc_reply
->msc_lo
);
506 *sbc
= merge_counter(wait_sbc_reply
->sbc_hi
, wait_sbc_reply
->sbc_lo
);
507 free(wait_sbc_reply
);
513 * dri2Throttle - Request driver throttling
515 * This function uses the DRI2 throttle extension to give the
516 * driver the opportunity to throttle on flush front, copysubbuffer
520 dri2Throttle(struct dri2_screen
*psc
,
521 struct dri2_drawable
*draw
,
522 enum __DRI2throttleReason reason
)
525 struct glx_context
*gc
= __glXGetCurrentContext();
526 struct dri2_context
*dri2Ctx
= (struct dri2_context
*)gc
;
528 (dri2Ctx
) ? dri2Ctx
->driContext
: NULL
;
530 psc
->throttle
->throttle(ctx
, draw
->driDrawable
, reason
);
535 __dri2CopySubBuffer(__GLXDRIdrawable
*pdraw
, int x
, int y
,
536 int width
, int height
,
537 enum __DRI2throttleReason reason
, Bool flush
)
539 struct dri2_drawable
*priv
= (struct dri2_drawable
*) pdraw
;
540 struct dri2_screen
*psc
= (struct dri2_screen
*) pdraw
->psc
;
542 XserverRegion region
;
544 /* Check we have the right attachments */
545 if (!priv
->have_back
)
549 xrect
.y
= priv
->height
- y
- height
;
551 xrect
.height
= height
;
558 (*psc
->f
->flush
) (priv
->driDrawable
);
560 dri2Throttle(psc
, priv
, reason
);
562 region
= XFixesCreateRegion(psc
->base
.dpy
, &xrect
, 1);
563 DRI2CopyRegion(psc
->base
.dpy
, pdraw
->xDrawable
, region
,
564 DRI2BufferFrontLeft
, DRI2BufferBackLeft
);
566 /* Refresh the fake front (if present) after we just damaged the real
569 if (priv
->have_fake_front
)
570 DRI2CopyRegion(psc
->base
.dpy
, pdraw
->xDrawable
, region
,
571 DRI2BufferFakeFrontLeft
, DRI2BufferFrontLeft
);
573 XFixesDestroyRegion(psc
->base
.dpy
, region
);
577 dri2CopySubBuffer(__GLXDRIdrawable
*pdraw
, int x
, int y
,
578 int width
, int height
, Bool flush
)
580 __dri2CopySubBuffer(pdraw
, x
, y
, width
, height
,
581 __DRI2_THROTTLE_COPYSUBBUFFER
, flush
);
586 dri2_copy_drawable(struct dri2_drawable
*priv
, int dest
, int src
)
589 XserverRegion region
;
590 struct dri2_screen
*psc
= (struct dri2_screen
*) priv
->base
.psc
;
594 xrect
.width
= priv
->width
;
595 xrect
.height
= priv
->height
;
598 (*psc
->f
->flush
) (priv
->driDrawable
);
600 region
= XFixesCreateRegion(psc
->base
.dpy
, &xrect
, 1);
601 DRI2CopyRegion(psc
->base
.dpy
, priv
->base
.xDrawable
, region
, dest
, src
);
602 XFixesDestroyRegion(psc
->base
.dpy
, region
);
607 dri2_wait_x(struct glx_context
*gc
)
609 struct dri2_drawable
*priv
= (struct dri2_drawable
*)
610 GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
);
612 if (priv
== NULL
|| !priv
->have_fake_front
)
615 dri2_copy_drawable(priv
, DRI2BufferFakeFrontLeft
, DRI2BufferFrontLeft
);
619 dri2_wait_gl(struct glx_context
*gc
)
621 struct dri2_drawable
*priv
= (struct dri2_drawable
*)
622 GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
);
624 if (priv
== NULL
|| !priv
->have_fake_front
)
627 dri2_copy_drawable(priv
, DRI2BufferFrontLeft
, DRI2BufferFakeFrontLeft
);
631 dri2FlushFrontBuffer(__DRIdrawable
*driDrawable
, void *loaderPrivate
)
633 struct glx_display
*priv
;
634 struct dri2_display
*pdp
;
635 struct glx_context
*gc
;
636 struct dri2_drawable
*pdraw
= loaderPrivate
;
637 struct dri2_screen
*psc
;
642 if (!pdraw
->base
.psc
)
645 psc
= (struct dri2_screen
*) pdraw
->base
.psc
;
647 priv
= __glXInitialize(psc
->base
.dpy
);
648 pdp
= (struct dri2_display
*) priv
->dri2Display
;
649 gc
= __glXGetCurrentContext();
651 dri2Throttle(psc
, pdraw
, __DRI2_THROTTLE_FLUSHFRONT
);
653 /* Old servers don't send invalidate events */
654 if (!pdp
->invalidateAvailable
)
655 dri2InvalidateBuffers(priv
->dpy
, pdraw
->base
.xDrawable
);
662 dri2DestroyScreen(struct glx_screen
*base
)
664 struct dri2_screen
*psc
= (struct dri2_screen
*) base
;
666 /* Free the direct rendering per screen data */
667 (*psc
->core
->destroyScreen
) (psc
->driScreen
);
668 driDestroyConfigs(psc
->driver_configs
);
674 * Process list of buffer received from the server
676 * Processes the list of buffers received in a reply from the server to either
677 * \c DRI2GetBuffers or \c DRI2GetBuffersWithFormat.
680 process_buffers(struct dri2_drawable
* pdraw
, DRI2Buffer
* buffers
,
685 pdraw
->bufferCount
= count
;
686 pdraw
->have_fake_front
= 0;
687 pdraw
->have_back
= 0;
689 /* This assumes the DRI2 buffer attachment tokens matches the
690 * __DRIbuffer tokens. */
691 for (i
= 0; i
< count
; i
++) {
692 pdraw
->buffers
[i
].attachment
= buffers
[i
].attachment
;
693 pdraw
->buffers
[i
].name
= buffers
[i
].name
;
694 pdraw
->buffers
[i
].pitch
= buffers
[i
].pitch
;
695 pdraw
->buffers
[i
].cpp
= buffers
[i
].cpp
;
696 pdraw
->buffers
[i
].flags
= buffers
[i
].flags
;
697 if (pdraw
->buffers
[i
].attachment
== __DRI_BUFFER_FAKE_FRONT_LEFT
)
698 pdraw
->have_fake_front
= 1;
699 if (pdraw
->buffers
[i
].attachment
== __DRI_BUFFER_BACK_LEFT
)
700 pdraw
->have_back
= 1;
705 unsigned dri2GetSwapEventType(Display
* dpy
, XID drawable
)
707 struct glx_display
*glx_dpy
= __glXInitialize(dpy
);
708 __GLXDRIdrawable
*pdraw
;
709 pdraw
= dri2GetGlxDrawableFromXDrawableId(dpy
, drawable
);
710 if (!pdraw
|| !(pdraw
->eventMask
& GLX_BUFFER_SWAP_COMPLETE_INTEL_MASK
))
712 return glx_dpy
->codes
->first_event
+ GLX_BufferSwapComplete
;
715 static void show_fps(struct dri2_drawable
*draw
)
718 uint64_t current_time
;
720 gettimeofday(&tv
, 0);
721 current_time
= (uint64_t)tv
.tv_sec
*1000000 + (uint64_t)tv
.tv_usec
;
725 if (draw
->previous_time
+ 1000000 <= current_time
) {
726 if (draw
->previous_time
) {
727 fprintf(stderr
, "libGL: FPS = %.1f\n",
728 ((uint64_t)draw
->frames
* 1000000) /
729 (double)(current_time
- draw
->previous_time
));
732 draw
->previous_time
= current_time
;
737 dri2SwapBuffers(__GLXDRIdrawable
*pdraw
, int64_t target_msc
, int64_t divisor
,
738 int64_t remainder
, Bool flush
)
740 struct dri2_drawable
*priv
= (struct dri2_drawable
*) pdraw
;
741 struct glx_display
*dpyPriv
= __glXInitialize(priv
->base
.psc
->dpy
);
742 struct dri2_screen
*psc
= (struct dri2_screen
*) priv
->base
.psc
;
743 struct dri2_display
*pdp
=
744 (struct dri2_display
*)dpyPriv
->dri2Display
;
747 /* Check we have the right attachments */
748 if (!priv
->have_back
)
751 /* Old servers can't handle swapbuffers */
752 if (!pdp
->swapAvailable
) {
753 __dri2CopySubBuffer(pdraw
, 0, 0, priv
->width
, priv
->height
,
754 __DRI2_THROTTLE_SWAPBUFFER
, flush
);
756 xcb_connection_t
*c
= XGetXCBConnection(pdraw
->psc
->dpy
);
757 xcb_dri2_swap_buffers_cookie_t swap_buffers_cookie
;
758 xcb_dri2_swap_buffers_reply_t
*swap_buffers_reply
;
759 uint32_t target_msc_hi
, target_msc_lo
;
760 uint32_t divisor_hi
, divisor_lo
;
761 uint32_t remainder_hi
, remainder_lo
;
768 struct glx_context
*gc
= __glXGetCurrentContext();
771 (*psc
->f
->flush
)(priv
->driDrawable
);
775 dri2Throttle(psc
, priv
, __DRI2_THROTTLE_SWAPBUFFER
);
777 split_counter(target_msc
, &target_msc_hi
, &target_msc_lo
);
778 split_counter(divisor
, &divisor_hi
, &divisor_lo
);
779 split_counter(remainder
, &remainder_hi
, &remainder_lo
);
781 swap_buffers_cookie
=
782 xcb_dri2_swap_buffers_unchecked(c
, pdraw
->xDrawable
,
783 target_msc_hi
, target_msc_lo
,
784 divisor_hi
, divisor_lo
,
785 remainder_hi
, remainder_lo
);
786 /* Immediately wait on the swapbuffers reply. If we didn't, we'd have
787 * to do so some time before reusing a (non-pageflipped) backbuffer.
788 * Otherwise, the new rendering could get ahead of the X Server's
789 * dispatch of the swapbuffer and you'd display garbage.
791 * We use XSync() first to reap the invalidate events through the event
792 * filter, to ensure that the next drawing doesn't use an invalidated
795 XSync(pdraw
->psc
->dpy
, False
);
797 xcb_dri2_swap_buffers_reply(c
, swap_buffers_cookie
, NULL
);
798 ret
= merge_counter(swap_buffers_reply
->swap_hi
,
799 swap_buffers_reply
->swap_lo
);
800 free(swap_buffers_reply
);
807 /* Old servers don't send invalidate events */
808 if (!pdp
->invalidateAvailable
)
809 dri2InvalidateBuffers(dpyPriv
->dpy
, pdraw
->xDrawable
);
815 dri2GetBuffers(__DRIdrawable
* driDrawable
,
816 int *width
, int *height
,
817 unsigned int *attachments
, int count
,
818 int *out_count
, void *loaderPrivate
)
820 struct dri2_drawable
*pdraw
= loaderPrivate
;
823 buffers
= DRI2GetBuffers(pdraw
->base
.psc
->dpy
, pdraw
->base
.xDrawable
,
824 width
, height
, attachments
, count
, out_count
);
828 pdraw
->width
= *width
;
829 pdraw
->height
= *height
;
830 process_buffers(pdraw
, buffers
, *out_count
);
834 return pdraw
->buffers
;
838 dri2GetBuffersWithFormat(__DRIdrawable
* driDrawable
,
839 int *width
, int *height
,
840 unsigned int *attachments
, int count
,
841 int *out_count
, void *loaderPrivate
)
843 struct dri2_drawable
*pdraw
= loaderPrivate
;
846 buffers
= DRI2GetBuffersWithFormat(pdraw
->base
.psc
->dpy
,
847 pdraw
->base
.xDrawable
,
848 width
, height
, attachments
,
853 pdraw
->width
= *width
;
854 pdraw
->height
= *height
;
855 process_buffers(pdraw
, buffers
, *out_count
);
859 return pdraw
->buffers
;
863 dri2SetSwapInterval(__GLXDRIdrawable
*pdraw
, int interval
)
865 xcb_connection_t
*c
= XGetXCBConnection(pdraw
->psc
->dpy
);
866 struct dri2_drawable
*priv
= (struct dri2_drawable
*) pdraw
;
867 GLint vblank_mode
= DRI_CONF_VBLANK_DEF_INTERVAL_1
;
868 struct dri2_screen
*psc
= (struct dri2_screen
*) priv
->base
.psc
;
871 psc
->config
->configQueryi(psc
->driScreen
,
872 "vblank_mode", &vblank_mode
);
874 switch (vblank_mode
) {
875 case DRI_CONF_VBLANK_NEVER
:
877 return GLX_BAD_VALUE
;
879 case DRI_CONF_VBLANK_ALWAYS_SYNC
:
881 return GLX_BAD_VALUE
;
887 xcb_dri2_swap_interval(c
, priv
->base
.xDrawable
, interval
);
888 priv
->swap_interval
= interval
;
894 dri2GetSwapInterval(__GLXDRIdrawable
*pdraw
)
896 struct dri2_drawable
*priv
= (struct dri2_drawable
*) pdraw
;
898 return priv
->swap_interval
;
901 static const __DRIdri2LoaderExtension dri2LoaderExtension
= {
902 {__DRI_DRI2_LOADER
, __DRI_DRI2_LOADER_VERSION
},
904 dri2FlushFrontBuffer
,
905 dri2GetBuffersWithFormat
,
908 static const __DRIdri2LoaderExtension dri2LoaderExtension_old
= {
909 {__DRI_DRI2_LOADER
, __DRI_DRI2_LOADER_VERSION
},
911 dri2FlushFrontBuffer
,
915 static const __DRIuseInvalidateExtension dri2UseInvalidate
= {
916 { __DRI_USE_INVALIDATE
, __DRI_USE_INVALIDATE_VERSION
}
920 dri2InvalidateBuffers(Display
*dpy
, XID drawable
)
922 __GLXDRIdrawable
*pdraw
=
923 dri2GetGlxDrawableFromXDrawableId(dpy
, drawable
);
924 struct dri2_screen
*psc
;
925 struct dri2_drawable
*pdp
= (struct dri2_drawable
*) pdraw
;
930 psc
= (struct dri2_screen
*) pdraw
->psc
;
932 if (pdraw
&& psc
->f
&& psc
->f
->base
.version
>= 3 && psc
->f
->invalidate
)
933 psc
->f
->invalidate(pdp
->driDrawable
);
937 dri2_bind_tex_image(Display
* dpy
,
938 GLXDrawable drawable
,
939 int buffer
, const int *attrib_list
)
941 struct glx_context
*gc
= __glXGetCurrentContext();
942 struct dri2_context
*pcp
= (struct dri2_context
*) gc
;
943 __GLXDRIdrawable
*base
= GetGLXDRIDrawable(dpy
, drawable
);
944 struct glx_display
*dpyPriv
= __glXInitialize(dpy
);
945 struct dri2_drawable
*pdraw
= (struct dri2_drawable
*) base
;
946 struct dri2_display
*pdp
=
947 (struct dri2_display
*) dpyPriv
->dri2Display
;
948 struct dri2_screen
*psc
;
951 psc
= (struct dri2_screen
*) base
->psc
;
953 if (!pdp
->invalidateAvailable
&& psc
->f
&&
954 psc
->f
->base
.version
>= 3 && psc
->f
->invalidate
)
955 psc
->f
->invalidate(pdraw
->driDrawable
);
957 if (psc
->texBuffer
->base
.version
>= 2 &&
958 psc
->texBuffer
->setTexBuffer2
!= NULL
) {
959 (*psc
->texBuffer
->setTexBuffer2
) (pcp
->driContext
,
960 pdraw
->base
.textureTarget
,
961 pdraw
->base
.textureFormat
,
965 (*psc
->texBuffer
->setTexBuffer
) (pcp
->driContext
,
966 pdraw
->base
.textureTarget
,
973 dri2_release_tex_image(Display
* dpy
, GLXDrawable drawable
, int buffer
)
975 #if __DRI_TEX_BUFFER_VERSION >= 3
976 struct glx_context
*gc
= __glXGetCurrentContext();
977 struct dri2_context
*pcp
= (struct dri2_context
*) gc
;
978 __GLXDRIdrawable
*base
= GetGLXDRIDrawable(dpy
, drawable
);
979 struct glx_display
*dpyPriv
= __glXInitialize(dpy
);
980 struct dri2_drawable
*pdraw
= (struct dri2_drawable
*) base
;
981 struct dri2_display
*pdp
=
982 (struct dri2_display
*) dpyPriv
->dri2Display
;
983 struct dri2_screen
*psc
;
986 psc
= (struct dri2_screen
*) base
->psc
;
988 if (psc
->texBuffer
->base
.version
>= 3 &&
989 psc
->texBuffer
->releaseTexBuffer
!= NULL
) {
990 (*psc
->texBuffer
->releaseTexBuffer
) (pcp
->driContext
,
991 pdraw
->base
.textureTarget
,
998 static const struct glx_context_vtable dri2_context_vtable
= {
999 dri2_destroy_context
,
1001 dri2_unbind_context
,
1005 dri2_bind_tex_image
,
1006 dri2_release_tex_image
,
1007 NULL
, /* get_proc_address */
1011 dri2BindExtensions(struct dri2_screen
*psc
, const __DRIextension
**extensions
)
1015 __glXEnableDirectExtension(&psc
->base
, "GLX_SGI_video_sync");
1016 __glXEnableDirectExtension(&psc
->base
, "GLX_SGI_swap_control");
1017 __glXEnableDirectExtension(&psc
->base
, "GLX_MESA_swap_control");
1018 __glXEnableDirectExtension(&psc
->base
, "GLX_SGI_make_current_read");
1020 /* FIXME: if DRI2 version supports it... */
1021 __glXEnableDirectExtension(&psc
->base
, "GLX_INTEL_swap_event");
1023 if (psc
->dri2
->base
.version
>= 3) {
1024 const unsigned mask
= psc
->dri2
->getAPIMask(psc
->driScreen
);
1026 __glXEnableDirectExtension(&psc
->base
, "GLX_ARB_create_context");
1027 __glXEnableDirectExtension(&psc
->base
, "GLX_ARB_create_context_profile");
1029 if ((mask
& (1 << __DRI_API_GLES2
)) != 0)
1030 __glXEnableDirectExtension(&psc
->base
,
1031 "GLX_EXT_create_context_es2_profile");
1034 for (i
= 0; extensions
[i
]; i
++) {
1035 if ((strcmp(extensions
[i
]->name
, __DRI_TEX_BUFFER
) == 0)) {
1036 psc
->texBuffer
= (__DRItexBufferExtension
*) extensions
[i
];
1037 __glXEnableDirectExtension(&psc
->base
, "GLX_EXT_texture_from_pixmap");
1040 if ((strcmp(extensions
[i
]->name
, __DRI2_FLUSH
) == 0)) {
1041 psc
->f
= (__DRI2flushExtension
*) extensions
[i
];
1042 /* internal driver extension, no GL extension exposed */
1045 if ((strcmp(extensions
[i
]->name
, __DRI2_CONFIG_QUERY
) == 0))
1046 psc
->config
= (__DRI2configQueryExtension
*) extensions
[i
];
1048 if (((strcmp(extensions
[i
]->name
, __DRI2_THROTTLE
) == 0)))
1049 psc
->throttle
= (__DRI2throttleExtension
*) extensions
[i
];
1051 /* DRI2 version 3 is also required because
1052 * GLX_ARB_create_context_robustness requires GLX_ARB_create_context.
1054 if (psc
->dri2
->base
.version
>= 3
1055 && strcmp(extensions
[i
]->name
, __DRI2_ROBUSTNESS
) == 0)
1056 __glXEnableDirectExtension(&psc
->base
,
1057 "GLX_ARB_create_context_robustness");
1061 static const struct glx_screen_vtable dri2_screen_vtable
= {
1062 dri2_create_context
,
1063 dri2_create_context_attribs
1066 static struct glx_screen
*
1067 dri2CreateScreen(int screen
, struct glx_display
* priv
)
1069 const __DRIconfig
**driver_configs
;
1070 const __DRIextension
**extensions
;
1071 const struct dri2_display
*const pdp
= (struct dri2_display
*)
1073 struct dri2_screen
*psc
;
1074 __GLXDRIscreen
*psp
;
1075 struct glx_config
*configs
= NULL
, *visuals
= NULL
;
1076 char *driverName
, *deviceName
, *tmp
;
1080 psc
= calloc(1, sizeof *psc
);
1086 if (!glx_screen_init(&psc
->base
, screen
, priv
)) {
1091 if (!DRI2Connect(priv
->dpy
, RootWindow(priv
->dpy
, screen
),
1092 &driverName
, &deviceName
)) {
1093 glx_screen_cleanup(&psc
->base
);
1095 InfoMessageF("screen %d does not appear to be DRI2 capable\n", screen
);
1099 psc
->driver
= driOpenDriver(driverName
);
1100 if (psc
->driver
== NULL
) {
1101 ErrorMessageF("driver pointer missing\n");
1105 extensions
= dlsym(psc
->driver
, __DRI_DRIVER_EXTENSIONS
);
1106 if (extensions
== NULL
) {
1107 ErrorMessageF("driver exports no extensions (%s)\n", dlerror());
1111 for (i
= 0; extensions
[i
]; i
++) {
1112 if (strcmp(extensions
[i
]->name
, __DRI_CORE
) == 0)
1113 psc
->core
= (__DRIcoreExtension
*) extensions
[i
];
1114 if (strcmp(extensions
[i
]->name
, __DRI_DRI2
) == 0)
1115 psc
->dri2
= (__DRIdri2Extension
*) extensions
[i
];
1118 if (psc
->core
== NULL
|| psc
->dri2
== NULL
) {
1119 ErrorMessageF("core dri or dri2 extension not found\n");
1124 psc
->fd
= open(deviceName
, O_RDWR
| O_CLOEXEC
);
1125 if (psc
->fd
== -1 && errno
== EINVAL
)
1128 psc
->fd
= open(deviceName
, O_RDWR
);
1130 fcntl(psc
->fd
, F_SETFD
, fcntl(psc
->fd
, F_GETFD
) | FD_CLOEXEC
);
1133 ErrorMessageF("failed to open drm device: %s\n", strerror(errno
));
1137 if (drmGetMagic(psc
->fd
, &magic
)) {
1138 ErrorMessageF("failed to get magic\n");
1142 if (!DRI2Authenticate(priv
->dpy
, RootWindow(priv
->dpy
, screen
), magic
)) {
1143 ErrorMessageF("failed to authenticate magic %d\n", magic
);
1148 /* If the server does not support the protocol for
1149 * DRI2GetBuffersWithFormat, don't supply that interface to the driver.
1152 psc
->dri2
->createNewScreen(screen
, psc
->fd
,
1153 (const __DRIextension
**)
1154 &pdp
->loader_extensions
[0],
1155 &driver_configs
, psc
);
1157 if (psc
->driScreen
== NULL
) {
1158 ErrorMessageF("failed to create dri screen\n");
1162 extensions
= psc
->core
->getExtensions(psc
->driScreen
);
1163 dri2BindExtensions(psc
, extensions
);
1165 configs
= driConvertConfigs(psc
->core
, psc
->base
.configs
, driver_configs
);
1166 visuals
= driConvertConfigs(psc
->core
, psc
->base
.visuals
, driver_configs
);
1168 if (!configs
|| !visuals
)
1171 glx_config_destroy_list(psc
->base
.configs
);
1172 psc
->base
.configs
= configs
;
1173 glx_config_destroy_list(psc
->base
.visuals
);
1174 psc
->base
.visuals
= visuals
;
1176 psc
->driver_configs
= driver_configs
;
1178 psc
->base
.vtable
= &dri2_screen_vtable
;
1180 psc
->base
.driScreen
= psp
;
1181 psp
->destroyScreen
= dri2DestroyScreen
;
1182 psp
->createDrawable
= dri2CreateDrawable
;
1183 psp
->swapBuffers
= dri2SwapBuffers
;
1184 psp
->getDrawableMSC
= NULL
;
1185 psp
->waitForMSC
= NULL
;
1186 psp
->waitForSBC
= NULL
;
1187 psp
->setSwapInterval
= NULL
;
1188 psp
->getSwapInterval
= NULL
;
1190 if (pdp
->driMinor
>= 2) {
1191 psp
->getDrawableMSC
= dri2DrawableGetMSC
;
1192 psp
->waitForMSC
= dri2WaitForMSC
;
1193 psp
->waitForSBC
= dri2WaitForSBC
;
1194 psp
->setSwapInterval
= dri2SetSwapInterval
;
1195 psp
->getSwapInterval
= dri2GetSwapInterval
;
1196 __glXEnableDirectExtension(&psc
->base
, "GLX_OML_sync_control");
1199 /* DRI2 suports SubBuffer through DRI2CopyRegion, so it's always
1201 psp
->copySubBuffer
= dri2CopySubBuffer
;
1202 __glXEnableDirectExtension(&psc
->base
, "GLX_MESA_copy_sub_buffer");
1207 tmp
= getenv("LIBGL_SHOW_FPS");
1208 psc
->show_fps
= tmp
&& strcmp(tmp
, "1") == 0;
1213 CriticalErrorMessageF("failed to load driver: %s\n", driverName
);
1216 glx_config_destroy_list(configs
);
1218 glx_config_destroy_list(visuals
);
1220 psc
->core
->destroyScreen(psc
->driScreen
);
1221 psc
->driScreen
= NULL
;
1225 dlclose(psc
->driver
);
1229 glx_screen_cleanup(&psc
->base
);
1235 /* Called from __glXFreeDisplayPrivate.
1238 dri2DestroyDisplay(__GLXDRIdisplay
* dpy
)
1240 struct dri2_display
*pdp
= (struct dri2_display
*) dpy
;
1242 __glxHashDestroy(pdp
->dri2Hash
);
1246 _X_HIDDEN __GLXDRIdrawable
*
1247 dri2GetGlxDrawableFromXDrawableId(Display
*dpy
, XID id
)
1249 struct glx_display
*d
= __glXInitialize(dpy
);
1250 struct dri2_display
*pdp
= (struct dri2_display
*) d
->dri2Display
;
1251 __GLXDRIdrawable
*pdraw
;
1253 if (__glxHashLookup(pdp
->dri2Hash
, id
, (void *) &pdraw
) == 0)
1260 * Allocate, initialize and return a __DRIdisplayPrivate object.
1261 * This is called from __glXInitialize() when we are given a new
1264 _X_HIDDEN __GLXDRIdisplay
*
1265 dri2CreateDisplay(Display
* dpy
)
1267 struct dri2_display
*pdp
;
1268 int eventBase
, errorBase
, i
;
1270 if (!DRI2QueryExtension(dpy
, &eventBase
, &errorBase
))
1273 pdp
= malloc(sizeof *pdp
);
1277 if (!DRI2QueryVersion(dpy
, &pdp
->driMajor
, &pdp
->driMinor
)) {
1283 pdp
->swapAvailable
= (pdp
->driMinor
>= 2);
1284 pdp
->invalidateAvailable
= (pdp
->driMinor
>= 3);
1286 pdp
->base
.destroyDisplay
= dri2DestroyDisplay
;
1287 pdp
->base
.createScreen
= dri2CreateScreen
;
1290 if (pdp
->driMinor
< 1)
1291 pdp
->loader_extensions
[i
++] = &dri2LoaderExtension_old
.base
;
1293 pdp
->loader_extensions
[i
++] = &dri2LoaderExtension
.base
;
1295 pdp
->loader_extensions
[i
++] = &systemTimeExtension
.base
;
1297 pdp
->loader_extensions
[i
++] = &dri2UseInvalidate
.base
;
1299 pdp
->loader_extensions
[i
++] = NULL
;
1301 pdp
->dri2Hash
= __glxHashCreate();
1302 if (pdp
->dri2Hash
== NULL
) {
1310 #endif /* GLX_DIRECT_RENDERING */