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
;
208 /* Check the renderType value */
209 if (!validate_renderType_against_config(config_base
, renderType
))
213 /* If the shareList context is not a DRI2 context, we cannot possibly
214 * create a DRI2 context that shares it.
216 if (shareList
->vtable
->destroy
!= dri2_destroy_context
) {
220 pcp_shared
= (struct dri2_context
*) shareList
;
221 shared
= pcp_shared
->driContext
;
224 pcp
= calloc(1, sizeof *pcp
);
228 if (!glx_context_init(&pcp
->base
, &psc
->base
, &config
->base
)) {
233 pcp
->base
.renderType
= renderType
;
236 (*psc
->dri2
->createNewContext
) (psc
->driScreen
,
237 config
->driConfig
, shared
, pcp
);
239 if (pcp
->driContext
== NULL
) {
244 pcp
->base
.vtable
= &dri2_context_vtable
;
249 static struct glx_context
*
250 dri2_create_context_attribs(struct glx_screen
*base
,
251 struct glx_config
*config_base
,
252 struct glx_context
*shareList
,
253 unsigned num_attribs
,
254 const uint32_t *attribs
,
257 struct dri2_context
*pcp
= NULL
;
258 struct dri2_context
*pcp_shared
= NULL
;
259 struct dri2_screen
*psc
= (struct dri2_screen
*) base
;
260 __GLXDRIconfigPrivate
*config
= (__GLXDRIconfigPrivate
*) config_base
;
261 __DRIcontext
*shared
= NULL
;
263 uint32_t minor_ver
= 1;
264 uint32_t major_ver
= 2;
265 uint32_t renderType
= GLX_RGBA_TYPE
;
268 int reset
= __DRI_CTX_RESET_NO_NOTIFICATION
;
269 uint32_t ctx_attribs
[2 * 5];
270 unsigned num_ctx_attribs
= 0;
272 if (psc
->dri2
->base
.version
< 3) {
273 *error
= __DRI_CTX_ERROR_NO_MEMORY
;
277 /* Remap the GLX tokens to DRI2 tokens.
279 if (!dri2_convert_glx_attribs(num_attribs
, attribs
,
280 &major_ver
, &minor_ver
, &renderType
, &flags
,
281 &api
, &reset
, error
))
284 /* Check the renderType value */
285 if (!validate_renderType_against_config(config_base
, renderType
))
289 pcp_shared
= (struct dri2_context
*) shareList
;
290 shared
= pcp_shared
->driContext
;
293 pcp
= calloc(1, sizeof *pcp
);
295 *error
= __DRI_CTX_ERROR_NO_MEMORY
;
299 if (!glx_context_init(&pcp
->base
, &psc
->base
, &config
->base
))
302 ctx_attribs
[num_ctx_attribs
++] = __DRI_CTX_ATTRIB_MAJOR_VERSION
;
303 ctx_attribs
[num_ctx_attribs
++] = major_ver
;
304 ctx_attribs
[num_ctx_attribs
++] = __DRI_CTX_ATTRIB_MINOR_VERSION
;
305 ctx_attribs
[num_ctx_attribs
++] = minor_ver
;
307 /* Only send a value when the non-default value is requested. By doing
308 * this we don't have to check the driver's DRI2 version before sending the
311 if (reset
!= __DRI_CTX_RESET_NO_NOTIFICATION
) {
312 ctx_attribs
[num_ctx_attribs
++] = __DRI_CTX_ATTRIB_RESET_STRATEGY
;
313 ctx_attribs
[num_ctx_attribs
++] = reset
;
317 ctx_attribs
[num_ctx_attribs
++] = __DRI_CTX_ATTRIB_FLAGS
;
319 /* The current __DRI_CTX_FLAG_* values are identical to the
320 * GLX_CONTEXT_*_BIT values.
322 ctx_attribs
[num_ctx_attribs
++] = flags
;
325 /* The renderType is retrieved from attribs, or set to default
328 pcp
->base
.renderType
= renderType
;
331 (*psc
->dri2
->createContextAttribs
) (psc
->driScreen
,
340 if (pcp
->driContext
== NULL
)
343 pcp
->base
.vtable
= &dri2_context_vtable
;
354 dri2DestroyDrawable(__GLXDRIdrawable
*base
)
356 struct dri2_screen
*psc
= (struct dri2_screen
*) base
->psc
;
357 struct dri2_drawable
*pdraw
= (struct dri2_drawable
*) base
;
358 struct glx_display
*dpyPriv
= psc
->base
.display
;
359 struct dri2_display
*pdp
= (struct dri2_display
*)dpyPriv
->dri2Display
;
361 __glxHashDelete(pdp
->dri2Hash
, pdraw
->base
.xDrawable
);
362 (*psc
->core
->destroyDrawable
) (pdraw
->driDrawable
);
364 /* If it's a GLX 1.3 drawables, we can destroy the DRI2 drawable
365 * now, as the application explicitly asked to destroy the GLX
366 * drawable. Otherwise, for legacy drawables, we let the DRI2
367 * drawable linger on the server, since there's no good way of
368 * knowing when the application is done with it. The server will
369 * destroy the DRI2 drawable when it destroys the X drawable or the
370 * client exits anyway. */
371 if (pdraw
->base
.xDrawable
!= pdraw
->base
.drawable
)
372 DRI2DestroyDrawable(psc
->base
.dpy
, pdraw
->base
.xDrawable
);
377 static __GLXDRIdrawable
*
378 dri2CreateDrawable(struct glx_screen
*base
, XID xDrawable
,
379 GLXDrawable drawable
, struct glx_config
*config_base
)
381 struct dri2_drawable
*pdraw
;
382 struct dri2_screen
*psc
= (struct dri2_screen
*) base
;
383 __GLXDRIconfigPrivate
*config
= (__GLXDRIconfigPrivate
*) config_base
;
384 struct glx_display
*dpyPriv
;
385 struct dri2_display
*pdp
;
386 GLint vblank_mode
= DRI_CONF_VBLANK_DEF_INTERVAL_1
;
388 pdraw
= calloc(1, sizeof(*pdraw
));
392 pdraw
->base
.destroyDrawable
= dri2DestroyDrawable
;
393 pdraw
->base
.xDrawable
= xDrawable
;
394 pdraw
->base
.drawable
= drawable
;
395 pdraw
->base
.psc
= &psc
->base
;
396 pdraw
->bufferCount
= 0;
397 pdraw
->swap_interval
= 1; /* default may be overridden below */
398 pdraw
->have_back
= 0;
401 psc
->config
->configQueryi(psc
->driScreen
,
402 "vblank_mode", &vblank_mode
);
404 switch (vblank_mode
) {
405 case DRI_CONF_VBLANK_NEVER
:
406 case DRI_CONF_VBLANK_DEF_INTERVAL_0
:
407 pdraw
->swap_interval
= 0;
409 case DRI_CONF_VBLANK_DEF_INTERVAL_1
:
410 case DRI_CONF_VBLANK_ALWAYS_SYNC
:
412 pdraw
->swap_interval
= 1;
416 DRI2CreateDrawable(psc
->base
.dpy
, xDrawable
);
418 dpyPriv
= __glXInitialize(psc
->base
.dpy
);
419 pdp
= (struct dri2_display
*)dpyPriv
->dri2Display
;;
420 /* Create a new drawable */
422 (*psc
->dri2
->createNewDrawable
) (psc
->driScreen
,
423 config
->driConfig
, pdraw
);
425 if (!pdraw
->driDrawable
) {
426 DRI2DestroyDrawable(psc
->base
.dpy
, xDrawable
);
431 if (__glxHashInsert(pdp
->dri2Hash
, xDrawable
, pdraw
)) {
432 (*psc
->core
->destroyDrawable
) (pdraw
->driDrawable
);
433 DRI2DestroyDrawable(psc
->base
.dpy
, xDrawable
);
439 * Make sure server has the same swap interval we do for the new
442 if (psc
->vtable
.setSwapInterval
)
443 psc
->vtable
.setSwapInterval(&pdraw
->base
, pdraw
->swap_interval
);
449 dri2DrawableGetMSC(struct glx_screen
*psc
, __GLXDRIdrawable
*pdraw
,
450 int64_t *ust
, int64_t *msc
, int64_t *sbc
)
452 xcb_connection_t
*c
= XGetXCBConnection(pdraw
->psc
->dpy
);
453 xcb_dri2_get_msc_cookie_t get_msc_cookie
;
454 xcb_dri2_get_msc_reply_t
*get_msc_reply
;
456 get_msc_cookie
= xcb_dri2_get_msc_unchecked(c
, pdraw
->xDrawable
);
457 get_msc_reply
= xcb_dri2_get_msc_reply(c
, get_msc_cookie
, NULL
);
462 *ust
= merge_counter(get_msc_reply
->ust_hi
, get_msc_reply
->ust_lo
);
463 *msc
= merge_counter(get_msc_reply
->msc_hi
, get_msc_reply
->msc_lo
);
464 *sbc
= merge_counter(get_msc_reply
->sbc_hi
, get_msc_reply
->sbc_lo
);
471 dri2WaitForMSC(__GLXDRIdrawable
*pdraw
, int64_t target_msc
, int64_t divisor
,
472 int64_t remainder
, int64_t *ust
, int64_t *msc
, int64_t *sbc
)
474 xcb_connection_t
*c
= XGetXCBConnection(pdraw
->psc
->dpy
);
475 xcb_dri2_wait_msc_cookie_t wait_msc_cookie
;
476 xcb_dri2_wait_msc_reply_t
*wait_msc_reply
;
477 uint32_t target_msc_hi
, target_msc_lo
;
478 uint32_t divisor_hi
, divisor_lo
;
479 uint32_t remainder_hi
, remainder_lo
;
481 split_counter(target_msc
, &target_msc_hi
, &target_msc_lo
);
482 split_counter(divisor
, &divisor_hi
, &divisor_lo
);
483 split_counter(remainder
, &remainder_hi
, &remainder_lo
);
485 wait_msc_cookie
= xcb_dri2_wait_msc_unchecked(c
, pdraw
->xDrawable
,
486 target_msc_hi
, target_msc_lo
,
487 divisor_hi
, divisor_lo
,
488 remainder_hi
, remainder_lo
);
489 wait_msc_reply
= xcb_dri2_wait_msc_reply(c
, wait_msc_cookie
, NULL
);
494 *ust
= merge_counter(wait_msc_reply
->ust_hi
, wait_msc_reply
->ust_lo
);
495 *msc
= merge_counter(wait_msc_reply
->msc_hi
, wait_msc_reply
->msc_lo
);
496 *sbc
= merge_counter(wait_msc_reply
->sbc_hi
, wait_msc_reply
->sbc_lo
);
497 free(wait_msc_reply
);
503 dri2WaitForSBC(__GLXDRIdrawable
*pdraw
, int64_t target_sbc
, int64_t *ust
,
504 int64_t *msc
, int64_t *sbc
)
506 xcb_connection_t
*c
= XGetXCBConnection(pdraw
->psc
->dpy
);
507 xcb_dri2_wait_sbc_cookie_t wait_sbc_cookie
;
508 xcb_dri2_wait_sbc_reply_t
*wait_sbc_reply
;
509 uint32_t target_sbc_hi
, target_sbc_lo
;
511 split_counter(target_sbc
, &target_sbc_hi
, &target_sbc_lo
);
513 wait_sbc_cookie
= xcb_dri2_wait_sbc_unchecked(c
, pdraw
->xDrawable
,
514 target_sbc_hi
, target_sbc_lo
);
515 wait_sbc_reply
= xcb_dri2_wait_sbc_reply(c
, wait_sbc_cookie
, NULL
);
520 *ust
= merge_counter(wait_sbc_reply
->ust_hi
, wait_sbc_reply
->ust_lo
);
521 *msc
= merge_counter(wait_sbc_reply
->msc_hi
, wait_sbc_reply
->msc_lo
);
522 *sbc
= merge_counter(wait_sbc_reply
->sbc_hi
, wait_sbc_reply
->sbc_lo
);
523 free(wait_sbc_reply
);
528 static __DRIcontext
*
529 dri2GetCurrentContext()
531 struct glx_context
*gc
= __glXGetCurrentContext();
532 struct dri2_context
*dri2Ctx
= (struct dri2_context
*)gc
;
534 return dri2Ctx
? dri2Ctx
->driContext
: NULL
;
538 * dri2Throttle - Request driver throttling
540 * This function uses the DRI2 throttle extension to give the
541 * driver the opportunity to throttle on flush front, copysubbuffer
545 dri2Throttle(struct dri2_screen
*psc
,
546 struct dri2_drawable
*draw
,
547 enum __DRI2throttleReason reason
)
550 __DRIcontext
*ctx
= dri2GetCurrentContext();
552 psc
->throttle
->throttle(ctx
, draw
->driDrawable
, reason
);
557 * Asks the driver to flush any queued work necessary for serializing with the
558 * X command stream, and optionally the slightly more strict requirement of
559 * glFlush() equivalence (which would require flushing even if nothing had
560 * been drawn to a window system framebuffer, for example).
563 dri2Flush(struct dri2_screen
*psc
,
565 struct dri2_drawable
*draw
,
567 enum __DRI2throttleReason throttle_reason
)
569 if (ctx
&& psc
->f
&& psc
->f
->base
.version
>= 4) {
570 psc
->f
->flush_with_flags(ctx
, draw
->driDrawable
, flags
, throttle_reason
);
572 if (flags
& __DRI2_FLUSH_CONTEXT
)
576 psc
->f
->flush(draw
->driDrawable
);
578 dri2Throttle(psc
, draw
, throttle_reason
);
583 __dri2CopySubBuffer(__GLXDRIdrawable
*pdraw
, int x
, int y
,
584 int width
, int height
,
585 enum __DRI2throttleReason reason
, Bool flush
)
587 struct dri2_drawable
*priv
= (struct dri2_drawable
*) pdraw
;
588 struct dri2_screen
*psc
= (struct dri2_screen
*) pdraw
->psc
;
590 XserverRegion region
;
591 __DRIcontext
*ctx
= dri2GetCurrentContext();
594 /* Check we have the right attachments */
595 if (!priv
->have_back
)
599 xrect
.y
= priv
->height
- y
- height
;
601 xrect
.height
= height
;
603 flags
= __DRI2_FLUSH_DRAWABLE
;
605 flags
|= __DRI2_FLUSH_CONTEXT
;
606 dri2Flush(psc
, ctx
, priv
, flags
, __DRI2_THROTTLE_SWAPBUFFER
);
608 region
= XFixesCreateRegion(psc
->base
.dpy
, &xrect
, 1);
609 DRI2CopyRegion(psc
->base
.dpy
, pdraw
->xDrawable
, region
,
610 DRI2BufferFrontLeft
, DRI2BufferBackLeft
);
612 /* Refresh the fake front (if present) after we just damaged the real
615 if (priv
->have_fake_front
)
616 DRI2CopyRegion(psc
->base
.dpy
, pdraw
->xDrawable
, region
,
617 DRI2BufferFakeFrontLeft
, DRI2BufferFrontLeft
);
619 XFixesDestroyRegion(psc
->base
.dpy
, region
);
623 dri2CopySubBuffer(__GLXDRIdrawable
*pdraw
, int x
, int y
,
624 int width
, int height
, Bool flush
)
626 __dri2CopySubBuffer(pdraw
, x
, y
, width
, height
,
627 __DRI2_THROTTLE_COPYSUBBUFFER
, flush
);
632 dri2_copy_drawable(struct dri2_drawable
*priv
, int dest
, int src
)
635 XserverRegion region
;
636 struct dri2_screen
*psc
= (struct dri2_screen
*) priv
->base
.psc
;
640 xrect
.width
= priv
->width
;
641 xrect
.height
= priv
->height
;
644 (*psc
->f
->flush
) (priv
->driDrawable
);
646 region
= XFixesCreateRegion(psc
->base
.dpy
, &xrect
, 1);
647 DRI2CopyRegion(psc
->base
.dpy
, priv
->base
.xDrawable
, region
, dest
, src
);
648 XFixesDestroyRegion(psc
->base
.dpy
, region
);
653 dri2_wait_x(struct glx_context
*gc
)
655 struct dri2_drawable
*priv
= (struct dri2_drawable
*)
656 GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
);
658 if (priv
== NULL
|| !priv
->have_fake_front
)
661 dri2_copy_drawable(priv
, DRI2BufferFakeFrontLeft
, DRI2BufferFrontLeft
);
665 dri2_wait_gl(struct glx_context
*gc
)
667 struct dri2_drawable
*priv
= (struct dri2_drawable
*)
668 GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
);
670 if (priv
== NULL
|| !priv
->have_fake_front
)
673 dri2_copy_drawable(priv
, DRI2BufferFrontLeft
, DRI2BufferFakeFrontLeft
);
677 * Called by the driver when it needs to update the real front buffer with the
678 * contents of its fake front buffer.
681 dri2FlushFrontBuffer(__DRIdrawable
*driDrawable
, void *loaderPrivate
)
683 struct glx_display
*priv
;
684 struct dri2_display
*pdp
;
685 struct glx_context
*gc
;
686 struct dri2_drawable
*pdraw
= loaderPrivate
;
687 struct dri2_screen
*psc
;
692 if (!pdraw
->base
.psc
)
695 psc
= (struct dri2_screen
*) pdraw
->base
.psc
;
697 priv
= __glXInitialize(psc
->base
.dpy
);
698 pdp
= (struct dri2_display
*) priv
->dri2Display
;
699 gc
= __glXGetCurrentContext();
701 dri2Throttle(psc
, pdraw
, __DRI2_THROTTLE_FLUSHFRONT
);
703 /* Old servers don't send invalidate events */
704 if (!pdp
->invalidateAvailable
)
705 dri2InvalidateBuffers(priv
->dpy
, pdraw
->base
.xDrawable
);
712 dri2DestroyScreen(struct glx_screen
*base
)
714 struct dri2_screen
*psc
= (struct dri2_screen
*) base
;
716 /* Free the direct rendering per screen data */
717 (*psc
->core
->destroyScreen
) (psc
->driScreen
);
718 driDestroyConfigs(psc
->driver_configs
);
724 * Process list of buffer received from the server
726 * Processes the list of buffers received in a reply from the server to either
727 * \c DRI2GetBuffers or \c DRI2GetBuffersWithFormat.
730 process_buffers(struct dri2_drawable
* pdraw
, DRI2Buffer
* buffers
,
735 pdraw
->bufferCount
= count
;
736 pdraw
->have_fake_front
= 0;
737 pdraw
->have_back
= 0;
739 /* This assumes the DRI2 buffer attachment tokens matches the
740 * __DRIbuffer tokens. */
741 for (i
= 0; i
< count
; i
++) {
742 pdraw
->buffers
[i
].attachment
= buffers
[i
].attachment
;
743 pdraw
->buffers
[i
].name
= buffers
[i
].name
;
744 pdraw
->buffers
[i
].pitch
= buffers
[i
].pitch
;
745 pdraw
->buffers
[i
].cpp
= buffers
[i
].cpp
;
746 pdraw
->buffers
[i
].flags
= buffers
[i
].flags
;
747 if (pdraw
->buffers
[i
].attachment
== __DRI_BUFFER_FAKE_FRONT_LEFT
)
748 pdraw
->have_fake_front
= 1;
749 if (pdraw
->buffers
[i
].attachment
== __DRI_BUFFER_BACK_LEFT
)
750 pdraw
->have_back
= 1;
755 unsigned dri2GetSwapEventType(Display
* dpy
, XID drawable
)
757 struct glx_display
*glx_dpy
= __glXInitialize(dpy
);
758 __GLXDRIdrawable
*pdraw
;
759 pdraw
= dri2GetGlxDrawableFromXDrawableId(dpy
, drawable
);
760 if (!pdraw
|| !(pdraw
->eventMask
& GLX_BUFFER_SWAP_COMPLETE_INTEL_MASK
))
762 return glx_dpy
->codes
->first_event
+ GLX_BufferSwapComplete
;
765 static void show_fps(struct dri2_drawable
*draw
)
768 uint64_t current_time
;
770 gettimeofday(&tv
, 0);
771 current_time
= (uint64_t)tv
.tv_sec
*1000000 + (uint64_t)tv
.tv_usec
;
775 if (draw
->previous_time
+ 1000000 <= current_time
) {
776 if (draw
->previous_time
) {
777 fprintf(stderr
, "libGL: FPS = %.1f\n",
778 ((uint64_t)draw
->frames
* 1000000) /
779 (double)(current_time
- draw
->previous_time
));
782 draw
->previous_time
= current_time
;
787 dri2XcbSwapBuffers(Display
*dpy
,
788 __GLXDRIdrawable
*pdraw
,
793 xcb_dri2_swap_buffers_cookie_t swap_buffers_cookie
;
794 xcb_dri2_swap_buffers_reply_t
*swap_buffers_reply
;
795 uint32_t target_msc_hi
, target_msc_lo
;
796 uint32_t divisor_hi
, divisor_lo
;
797 uint32_t remainder_hi
, remainder_lo
;
799 xcb_connection_t
*c
= XGetXCBConnection(dpy
);
801 split_counter(target_msc
, &target_msc_hi
, &target_msc_lo
);
802 split_counter(divisor
, &divisor_hi
, &divisor_lo
);
803 split_counter(remainder
, &remainder_hi
, &remainder_lo
);
805 swap_buffers_cookie
=
806 xcb_dri2_swap_buffers_unchecked(c
, pdraw
->xDrawable
,
807 target_msc_hi
, target_msc_lo
,
808 divisor_hi
, divisor_lo
,
809 remainder_hi
, remainder_lo
);
811 /* Immediately wait on the swapbuffers reply. If we didn't, we'd have
812 * to do so some time before reusing a (non-pageflipped) backbuffer.
813 * Otherwise, the new rendering could get ahead of the X Server's
814 * dispatch of the swapbuffer and you'd display garbage.
816 * We use XSync() first to reap the invalidate events through the event
817 * filter, to ensure that the next drawing doesn't use an invalidated
823 xcb_dri2_swap_buffers_reply(c
, swap_buffers_cookie
, NULL
);
824 if (swap_buffers_reply
) {
825 ret
= merge_counter(swap_buffers_reply
->swap_hi
,
826 swap_buffers_reply
->swap_lo
);
827 free(swap_buffers_reply
);
833 dri2SwapBuffers(__GLXDRIdrawable
*pdraw
, int64_t target_msc
, int64_t divisor
,
834 int64_t remainder
, Bool flush
)
836 struct dri2_drawable
*priv
= (struct dri2_drawable
*) pdraw
;
837 struct glx_display
*dpyPriv
= __glXInitialize(priv
->base
.psc
->dpy
);
838 struct dri2_screen
*psc
= (struct dri2_screen
*) priv
->base
.psc
;
839 struct dri2_display
*pdp
=
840 (struct dri2_display
*)dpyPriv
->dri2Display
;
843 /* Check we have the right attachments */
844 if (!priv
->have_back
)
847 /* Old servers can't handle swapbuffers */
848 if (!pdp
->swapAvailable
) {
849 __dri2CopySubBuffer(pdraw
, 0, 0, priv
->width
, priv
->height
,
850 __DRI2_THROTTLE_SWAPBUFFER
, flush
);
852 __DRIcontext
*ctx
= dri2GetCurrentContext();
853 unsigned flags
= __DRI2_FLUSH_DRAWABLE
;
855 flags
|= __DRI2_FLUSH_CONTEXT
;
856 dri2Flush(psc
, ctx
, priv
, flags
, __DRI2_THROTTLE_SWAPBUFFER
);
858 ret
= dri2XcbSwapBuffers(pdraw
->psc
->dpy
, pdraw
,
859 target_msc
, divisor
, remainder
);
866 /* Old servers don't send invalidate events */
867 if (!pdp
->invalidateAvailable
)
868 dri2InvalidateBuffers(dpyPriv
->dpy
, pdraw
->xDrawable
);
874 dri2GetBuffers(__DRIdrawable
* driDrawable
,
875 int *width
, int *height
,
876 unsigned int *attachments
, int count
,
877 int *out_count
, void *loaderPrivate
)
879 struct dri2_drawable
*pdraw
= loaderPrivate
;
882 buffers
= DRI2GetBuffers(pdraw
->base
.psc
->dpy
, pdraw
->base
.xDrawable
,
883 width
, height
, attachments
, count
, out_count
);
887 pdraw
->width
= *width
;
888 pdraw
->height
= *height
;
889 process_buffers(pdraw
, buffers
, *out_count
);
893 return pdraw
->buffers
;
897 dri2GetBuffersWithFormat(__DRIdrawable
* driDrawable
,
898 int *width
, int *height
,
899 unsigned int *attachments
, int count
,
900 int *out_count
, void *loaderPrivate
)
902 struct dri2_drawable
*pdraw
= loaderPrivate
;
905 buffers
= DRI2GetBuffersWithFormat(pdraw
->base
.psc
->dpy
,
906 pdraw
->base
.xDrawable
,
907 width
, height
, attachments
,
912 pdraw
->width
= *width
;
913 pdraw
->height
= *height
;
914 process_buffers(pdraw
, buffers
, *out_count
);
918 return pdraw
->buffers
;
922 dri2SetSwapInterval(__GLXDRIdrawable
*pdraw
, int interval
)
924 xcb_connection_t
*c
= XGetXCBConnection(pdraw
->psc
->dpy
);
925 struct dri2_drawable
*priv
= (struct dri2_drawable
*) pdraw
;
926 GLint vblank_mode
= DRI_CONF_VBLANK_DEF_INTERVAL_1
;
927 struct dri2_screen
*psc
= (struct dri2_screen
*) priv
->base
.psc
;
930 psc
->config
->configQueryi(psc
->driScreen
,
931 "vblank_mode", &vblank_mode
);
933 switch (vblank_mode
) {
934 case DRI_CONF_VBLANK_NEVER
:
936 return GLX_BAD_VALUE
;
938 case DRI_CONF_VBLANK_ALWAYS_SYNC
:
940 return GLX_BAD_VALUE
;
946 xcb_dri2_swap_interval(c
, priv
->base
.xDrawable
, interval
);
947 priv
->swap_interval
= interval
;
953 dri2GetSwapInterval(__GLXDRIdrawable
*pdraw
)
955 struct dri2_drawable
*priv
= (struct dri2_drawable
*) pdraw
;
957 return priv
->swap_interval
;
960 static const __DRIdri2LoaderExtension dri2LoaderExtension
= {
961 {__DRI_DRI2_LOADER
, __DRI_DRI2_LOADER_VERSION
},
963 dri2FlushFrontBuffer
,
964 dri2GetBuffersWithFormat
,
967 static const __DRIdri2LoaderExtension dri2LoaderExtension_old
= {
968 {__DRI_DRI2_LOADER
, __DRI_DRI2_LOADER_VERSION
},
970 dri2FlushFrontBuffer
,
974 static const __DRIuseInvalidateExtension dri2UseInvalidate
= {
975 { __DRI_USE_INVALIDATE
, __DRI_USE_INVALIDATE_VERSION
}
979 dri2InvalidateBuffers(Display
*dpy
, XID drawable
)
981 __GLXDRIdrawable
*pdraw
=
982 dri2GetGlxDrawableFromXDrawableId(dpy
, drawable
);
983 struct dri2_screen
*psc
;
984 struct dri2_drawable
*pdp
= (struct dri2_drawable
*) pdraw
;
989 psc
= (struct dri2_screen
*) pdraw
->psc
;
991 if (pdraw
&& psc
->f
&& psc
->f
->base
.version
>= 3 && psc
->f
->invalidate
)
992 psc
->f
->invalidate(pdp
->driDrawable
);
996 dri2_bind_tex_image(Display
* dpy
,
997 GLXDrawable drawable
,
998 int buffer
, const int *attrib_list
)
1000 struct glx_context
*gc
= __glXGetCurrentContext();
1001 struct dri2_context
*pcp
= (struct dri2_context
*) gc
;
1002 __GLXDRIdrawable
*base
= GetGLXDRIDrawable(dpy
, drawable
);
1003 struct glx_display
*dpyPriv
= __glXInitialize(dpy
);
1004 struct dri2_drawable
*pdraw
= (struct dri2_drawable
*) base
;
1005 struct dri2_display
*pdp
=
1006 (struct dri2_display
*) dpyPriv
->dri2Display
;
1007 struct dri2_screen
*psc
;
1009 if (pdraw
!= NULL
) {
1010 psc
= (struct dri2_screen
*) base
->psc
;
1012 if (!pdp
->invalidateAvailable
&& psc
->f
&&
1013 psc
->f
->base
.version
>= 3 && psc
->f
->invalidate
)
1014 psc
->f
->invalidate(pdraw
->driDrawable
);
1016 if (psc
->texBuffer
->base
.version
>= 2 &&
1017 psc
->texBuffer
->setTexBuffer2
!= NULL
) {
1018 (*psc
->texBuffer
->setTexBuffer2
) (pcp
->driContext
,
1019 pdraw
->base
.textureTarget
,
1020 pdraw
->base
.textureFormat
,
1021 pdraw
->driDrawable
);
1024 (*psc
->texBuffer
->setTexBuffer
) (pcp
->driContext
,
1025 pdraw
->base
.textureTarget
,
1026 pdraw
->driDrawable
);
1032 dri2_release_tex_image(Display
* dpy
, GLXDrawable drawable
, int buffer
)
1034 #if __DRI_TEX_BUFFER_VERSION >= 3
1035 struct glx_context
*gc
= __glXGetCurrentContext();
1036 struct dri2_context
*pcp
= (struct dri2_context
*) gc
;
1037 __GLXDRIdrawable
*base
= GetGLXDRIDrawable(dpy
, drawable
);
1038 struct glx_display
*dpyPriv
= __glXInitialize(dpy
);
1039 struct dri2_drawable
*pdraw
= (struct dri2_drawable
*) base
;
1040 struct dri2_display
*pdp
=
1041 (struct dri2_display
*) dpyPriv
->dri2Display
;
1042 struct dri2_screen
*psc
;
1044 if (pdraw
!= NULL
) {
1045 psc
= (struct dri2_screen
*) base
->psc
;
1047 if (psc
->texBuffer
->base
.version
>= 3 &&
1048 psc
->texBuffer
->releaseTexBuffer
!= NULL
) {
1049 (*psc
->texBuffer
->releaseTexBuffer
) (pcp
->driContext
,
1050 pdraw
->base
.textureTarget
,
1051 pdraw
->driDrawable
);
1057 static const struct glx_context_vtable dri2_context_vtable
= {
1058 dri2_destroy_context
,
1060 dri2_unbind_context
,
1064 dri2_bind_tex_image
,
1065 dri2_release_tex_image
,
1066 NULL
, /* get_proc_address */
1070 dri2BindExtensions(struct dri2_screen
*psc
, struct glx_display
* priv
,
1071 const char *driverName
)
1073 const struct dri2_display
*const pdp
= (struct dri2_display
*)
1075 const __DRIextension
**extensions
;
1078 extensions
= psc
->core
->getExtensions(psc
->driScreen
);
1080 __glXEnableDirectExtension(&psc
->base
, "GLX_SGI_video_sync");
1081 __glXEnableDirectExtension(&psc
->base
, "GLX_SGI_swap_control");
1082 __glXEnableDirectExtension(&psc
->base
, "GLX_MESA_swap_control");
1083 __glXEnableDirectExtension(&psc
->base
, "GLX_SGI_make_current_read");
1086 * GLX_INTEL_swap_event is broken on the server side, where it's
1087 * currently unconditionally enabled. This completely breaks
1088 * systems running on drivers which don't support that extension.
1089 * There's no way to test for its presence on this side, so instead
1090 * of disabling it unconditionally, just disable it for drivers
1091 * which are known to not support it, or for DDX drivers supporting
1092 * only an older (pre-ScheduleSwap) version of DRI2.
1094 * This is a hack which is required until:
1095 * http://lists.x.org/archives/xorg-devel/2013-February/035449.html
1096 * is merged and updated xserver makes it's way into distros:
1098 if (pdp
->swapAvailable
&& strcmp(driverName
, "vmwgfx") != 0) {
1099 __glXEnableDirectExtension(&psc
->base
, "GLX_INTEL_swap_event");
1102 if (psc
->dri2
->base
.version
>= 3) {
1103 const unsigned mask
= psc
->dri2
->getAPIMask(psc
->driScreen
);
1105 __glXEnableDirectExtension(&psc
->base
, "GLX_ARB_create_context");
1106 __glXEnableDirectExtension(&psc
->base
, "GLX_ARB_create_context_profile");
1108 if ((mask
& (1 << __DRI_API_GLES2
)) != 0)
1109 __glXEnableDirectExtension(&psc
->base
,
1110 "GLX_EXT_create_context_es2_profile");
1113 for (i
= 0; extensions
[i
]; i
++) {
1114 if ((strcmp(extensions
[i
]->name
, __DRI_TEX_BUFFER
) == 0)) {
1115 psc
->texBuffer
= (__DRItexBufferExtension
*) extensions
[i
];
1116 __glXEnableDirectExtension(&psc
->base
, "GLX_EXT_texture_from_pixmap");
1119 if ((strcmp(extensions
[i
]->name
, __DRI2_FLUSH
) == 0)) {
1120 psc
->f
= (__DRI2flushExtension
*) extensions
[i
];
1121 /* internal driver extension, no GL extension exposed */
1124 if ((strcmp(extensions
[i
]->name
, __DRI2_CONFIG_QUERY
) == 0))
1125 psc
->config
= (__DRI2configQueryExtension
*) extensions
[i
];
1127 if (((strcmp(extensions
[i
]->name
, __DRI2_THROTTLE
) == 0)))
1128 psc
->throttle
= (__DRI2throttleExtension
*) extensions
[i
];
1130 /* DRI2 version 3 is also required because
1131 * GLX_ARB_create_context_robustness requires GLX_ARB_create_context.
1133 if (psc
->dri2
->base
.version
>= 3
1134 && strcmp(extensions
[i
]->name
, __DRI2_ROBUSTNESS
) == 0)
1135 __glXEnableDirectExtension(&psc
->base
,
1136 "GLX_ARB_create_context_robustness");
1140 static const struct glx_screen_vtable dri2_screen_vtable
= {
1141 dri2_create_context
,
1142 dri2_create_context_attribs
1145 static struct glx_screen
*
1146 dri2CreateScreen(int screen
, struct glx_display
* priv
)
1148 const __DRIconfig
**driver_configs
;
1149 const __DRIextension
**extensions
;
1150 const struct dri2_display
*const pdp
= (struct dri2_display
*)
1152 struct dri2_screen
*psc
;
1153 __GLXDRIscreen
*psp
;
1154 struct glx_config
*configs
= NULL
, *visuals
= NULL
;
1155 char *driverName
, *deviceName
, *tmp
;
1159 psc
= calloc(1, sizeof *psc
);
1165 if (!glx_screen_init(&psc
->base
, screen
, priv
)) {
1170 if (!DRI2Connect(priv
->dpy
, RootWindow(priv
->dpy
, screen
),
1171 &driverName
, &deviceName
)) {
1172 glx_screen_cleanup(&psc
->base
);
1174 InfoMessageF("screen %d does not appear to be DRI2 capable\n", screen
);
1178 psc
->driver
= driOpenDriver(driverName
);
1179 if (psc
->driver
== NULL
) {
1180 ErrorMessageF("driver pointer missing\n");
1184 extensions
= dlsym(psc
->driver
, __DRI_DRIVER_EXTENSIONS
);
1185 if (extensions
== NULL
) {
1186 ErrorMessageF("driver exports no extensions (%s)\n", dlerror());
1190 for (i
= 0; extensions
[i
]; i
++) {
1191 if (strcmp(extensions
[i
]->name
, __DRI_CORE
) == 0)
1192 psc
->core
= (__DRIcoreExtension
*) extensions
[i
];
1193 if (strcmp(extensions
[i
]->name
, __DRI_DRI2
) == 0)
1194 psc
->dri2
= (__DRIdri2Extension
*) extensions
[i
];
1197 if (psc
->core
== NULL
|| psc
->dri2
== NULL
) {
1198 ErrorMessageF("core dri or dri2 extension not found\n");
1203 psc
->fd
= open(deviceName
, O_RDWR
| O_CLOEXEC
);
1204 if (psc
->fd
== -1 && errno
== EINVAL
)
1207 psc
->fd
= open(deviceName
, O_RDWR
);
1209 fcntl(psc
->fd
, F_SETFD
, fcntl(psc
->fd
, F_GETFD
) | FD_CLOEXEC
);
1212 ErrorMessageF("failed to open drm device: %s\n", strerror(errno
));
1216 if (drmGetMagic(psc
->fd
, &magic
)) {
1217 ErrorMessageF("failed to get magic\n");
1221 if (!DRI2Authenticate(priv
->dpy
, RootWindow(priv
->dpy
, screen
), magic
)) {
1222 ErrorMessageF("failed to authenticate magic %d\n", magic
);
1227 /* If the server does not support the protocol for
1228 * DRI2GetBuffersWithFormat, don't supply that interface to the driver.
1231 psc
->dri2
->createNewScreen(screen
, psc
->fd
,
1232 (const __DRIextension
**)
1233 &pdp
->loader_extensions
[0],
1234 &driver_configs
, psc
);
1236 if (psc
->driScreen
== NULL
) {
1237 ErrorMessageF("failed to create dri screen\n");
1241 dri2BindExtensions(psc
, priv
, driverName
);
1243 configs
= driConvertConfigs(psc
->core
, psc
->base
.configs
, driver_configs
);
1244 visuals
= driConvertConfigs(psc
->core
, psc
->base
.visuals
, driver_configs
);
1246 if (!configs
|| !visuals
)
1249 glx_config_destroy_list(psc
->base
.configs
);
1250 psc
->base
.configs
= configs
;
1251 glx_config_destroy_list(psc
->base
.visuals
);
1252 psc
->base
.visuals
= visuals
;
1254 psc
->driver_configs
= driver_configs
;
1256 psc
->base
.vtable
= &dri2_screen_vtable
;
1258 psc
->base
.driScreen
= psp
;
1259 psp
->destroyScreen
= dri2DestroyScreen
;
1260 psp
->createDrawable
= dri2CreateDrawable
;
1261 psp
->swapBuffers
= dri2SwapBuffers
;
1262 psp
->getDrawableMSC
= NULL
;
1263 psp
->waitForMSC
= NULL
;
1264 psp
->waitForSBC
= NULL
;
1265 psp
->setSwapInterval
= NULL
;
1266 psp
->getSwapInterval
= NULL
;
1268 if (pdp
->driMinor
>= 2) {
1269 psp
->getDrawableMSC
= dri2DrawableGetMSC
;
1270 psp
->waitForMSC
= dri2WaitForMSC
;
1271 psp
->waitForSBC
= dri2WaitForSBC
;
1272 psp
->setSwapInterval
= dri2SetSwapInterval
;
1273 psp
->getSwapInterval
= dri2GetSwapInterval
;
1274 __glXEnableDirectExtension(&psc
->base
, "GLX_OML_sync_control");
1277 /* DRI2 suports SubBuffer through DRI2CopyRegion, so it's always
1279 psp
->copySubBuffer
= dri2CopySubBuffer
;
1280 __glXEnableDirectExtension(&psc
->base
, "GLX_MESA_copy_sub_buffer");
1285 tmp
= getenv("LIBGL_SHOW_FPS");
1286 psc
->show_fps
= tmp
&& strcmp(tmp
, "1") == 0;
1291 CriticalErrorMessageF("failed to load driver: %s\n", driverName
);
1294 glx_config_destroy_list(configs
);
1296 glx_config_destroy_list(visuals
);
1298 psc
->core
->destroyScreen(psc
->driScreen
);
1299 psc
->driScreen
= NULL
;
1303 dlclose(psc
->driver
);
1307 glx_screen_cleanup(&psc
->base
);
1313 /* Called from __glXFreeDisplayPrivate.
1316 dri2DestroyDisplay(__GLXDRIdisplay
* dpy
)
1318 struct dri2_display
*pdp
= (struct dri2_display
*) dpy
;
1320 __glxHashDestroy(pdp
->dri2Hash
);
1324 _X_HIDDEN __GLXDRIdrawable
*
1325 dri2GetGlxDrawableFromXDrawableId(Display
*dpy
, XID id
)
1327 struct glx_display
*d
= __glXInitialize(dpy
);
1328 struct dri2_display
*pdp
= (struct dri2_display
*) d
->dri2Display
;
1329 __GLXDRIdrawable
*pdraw
;
1331 if (__glxHashLookup(pdp
->dri2Hash
, id
, (void *) &pdraw
) == 0)
1338 * Allocate, initialize and return a __DRIdisplayPrivate object.
1339 * This is called from __glXInitialize() when we are given a new
1342 _X_HIDDEN __GLXDRIdisplay
*
1343 dri2CreateDisplay(Display
* dpy
)
1345 struct dri2_display
*pdp
;
1346 int eventBase
, errorBase
, i
;
1348 if (!DRI2QueryExtension(dpy
, &eventBase
, &errorBase
))
1351 pdp
= malloc(sizeof *pdp
);
1355 if (!DRI2QueryVersion(dpy
, &pdp
->driMajor
, &pdp
->driMinor
)) {
1361 pdp
->swapAvailable
= (pdp
->driMinor
>= 2);
1362 pdp
->invalidateAvailable
= (pdp
->driMinor
>= 3);
1364 pdp
->base
.destroyDisplay
= dri2DestroyDisplay
;
1365 pdp
->base
.createScreen
= dri2CreateScreen
;
1368 if (pdp
->driMinor
< 1)
1369 pdp
->loader_extensions
[i
++] = &dri2LoaderExtension_old
.base
;
1371 pdp
->loader_extensions
[i
++] = &dri2LoaderExtension
.base
;
1373 pdp
->loader_extensions
[i
++] = &systemTimeExtension
.base
;
1375 pdp
->loader_extensions
[i
++] = &dri2UseInvalidate
.base
;
1377 pdp
->loader_extensions
[i
++] = NULL
;
1379 pdp
->dri2Hash
= __glxHashCreate();
1380 if (pdp
->dri2Hash
== NULL
) {
1388 #endif /* GLX_DIRECT_RENDERING */