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"
53 #include "dri2_priv.h"
56 /* From xmlpool/options.h, user exposed so should be stable */
57 #define DRI_CONF_VBLANK_NEVER 0
58 #define DRI_CONF_VBLANK_DEF_INTERVAL_0 1
59 #define DRI_CONF_VBLANK_DEF_INTERVAL_1 2
60 #define DRI_CONF_VBLANK_ALWAYS_SYNC 3
70 ** XFree86-DRI version information
76 int invalidateAvailable
;
78 __glxHashTable
*dri2Hash
;
80 const __DRIextension
*loader_extensions
[4];
85 struct glx_context base
;
86 __DRIcontext
*driContext
;
91 __GLXDRIdrawable base
;
92 __DRIdrawable
*driDrawable
;
93 __DRIbuffer buffers
[5];
100 uint64_t previous_time
;
104 static const struct glx_context_vtable dri2_context_vtable
;
106 /* For XCB's handling of ust/msc/sbc counters, we have to hand it the high and
107 * low halves separately. This helps you split them.
110 split_counter(uint64_t counter
, uint32_t *hi
, uint32_t *lo
)
112 *hi
= (counter
>> 32);
113 *lo
= counter
& 0xffffffff;
117 merge_counter(uint32_t hi
, uint32_t lo
)
119 return ((uint64_t)hi
<< 32) | lo
;
123 dri2_destroy_context(struct glx_context
*context
)
125 struct dri2_context
*pcp
= (struct dri2_context
*) context
;
126 struct dri2_screen
*psc
= (struct dri2_screen
*) context
->psc
;
128 driReleaseDrawables(&pcp
->base
);
130 free((char *) context
->extensions
);
132 (*psc
->core
->destroyContext
) (pcp
->driContext
);
138 dri2_bind_context(struct glx_context
*context
, struct glx_context
*old
,
139 GLXDrawable draw
, GLXDrawable read
)
141 struct dri2_context
*pcp
= (struct dri2_context
*) context
;
142 struct dri2_screen
*psc
= (struct dri2_screen
*) pcp
->base
.psc
;
143 struct dri2_drawable
*pdraw
, *pread
;
144 struct dri2_display
*pdp
;
146 pdraw
= (struct dri2_drawable
*) driFetchDrawable(context
, draw
);
147 pread
= (struct dri2_drawable
*) driFetchDrawable(context
, read
);
149 driReleaseDrawables(&pcp
->base
);
151 if (pdraw
== NULL
|| pread
== NULL
)
152 return GLXBadDrawable
;
154 if (!(*psc
->core
->bindContext
) (pcp
->driContext
,
155 pdraw
->driDrawable
, pread
->driDrawable
))
156 return GLXBadContext
;
158 /* If the server doesn't send invalidate events, we may miss a
159 * resize before the rendering starts. Invalidate the buffers now
160 * so the driver will recheck before rendering starts. */
161 pdp
= (struct dri2_display
*) psc
->base
.display
;
162 if (!pdp
->invalidateAvailable
) {
163 dri2InvalidateBuffers(psc
->base
.dpy
, pdraw
->base
.xDrawable
);
165 dri2InvalidateBuffers(psc
->base
.dpy
, pread
->base
.xDrawable
);
172 dri2_unbind_context(struct glx_context
*context
, struct glx_context
*new)
174 struct dri2_context
*pcp
= (struct dri2_context
*) context
;
175 struct dri2_screen
*psc
= (struct dri2_screen
*) pcp
->base
.psc
;
177 (*psc
->core
->unbindContext
) (pcp
->driContext
);
180 static struct glx_context
*
181 dri2_create_context(struct glx_screen
*base
,
182 struct glx_config
*config_base
,
183 struct glx_context
*shareList
, int renderType
)
185 struct dri2_context
*pcp
, *pcp_shared
;
186 struct dri2_screen
*psc
= (struct dri2_screen
*) base
;
187 __GLXDRIconfigPrivate
*config
= (__GLXDRIconfigPrivate
*) config_base
;
188 __DRIcontext
*shared
= NULL
;
190 /* Check the renderType value */
191 if (!validate_renderType_against_config(config_base
, renderType
))
195 /* If the shareList context is not a DRI2 context, we cannot possibly
196 * create a DRI2 context that shares it.
198 if (shareList
->vtable
->destroy
!= dri2_destroy_context
) {
202 pcp_shared
= (struct dri2_context
*) shareList
;
203 shared
= pcp_shared
->driContext
;
206 pcp
= calloc(1, sizeof *pcp
);
210 if (!glx_context_init(&pcp
->base
, &psc
->base
, &config
->base
)) {
215 pcp
->base
.renderType
= renderType
;
218 (*psc
->dri2
->createNewContext
) (psc
->driScreen
,
219 config
->driConfig
, shared
, pcp
);
221 if (pcp
->driContext
== NULL
) {
226 pcp
->base
.vtable
= &dri2_context_vtable
;
231 static struct glx_context
*
232 dri2_create_context_attribs(struct glx_screen
*base
,
233 struct glx_config
*config_base
,
234 struct glx_context
*shareList
,
235 unsigned num_attribs
,
236 const uint32_t *attribs
,
239 struct dri2_context
*pcp
= NULL
;
240 struct dri2_context
*pcp_shared
= NULL
;
241 struct dri2_screen
*psc
= (struct dri2_screen
*) base
;
242 __GLXDRIconfigPrivate
*config
= (__GLXDRIconfigPrivate
*) config_base
;
243 __DRIcontext
*shared
= NULL
;
251 uint32_t ctx_attribs
[2 * 5];
252 unsigned num_ctx_attribs
= 0;
254 if (psc
->dri2
->base
.version
< 3) {
255 *error
= __DRI_CTX_ERROR_NO_MEMORY
;
259 /* Remap the GLX tokens to DRI2 tokens.
261 if (!dri2_convert_glx_attribs(num_attribs
, attribs
,
262 &major_ver
, &minor_ver
, &renderType
, &flags
,
263 &api
, &reset
, error
))
266 /* Check the renderType value */
267 if (!validate_renderType_against_config(config_base
, renderType
))
271 pcp_shared
= (struct dri2_context
*) shareList
;
272 shared
= pcp_shared
->driContext
;
275 pcp
= calloc(1, sizeof *pcp
);
277 *error
= __DRI_CTX_ERROR_NO_MEMORY
;
281 if (!glx_context_init(&pcp
->base
, &psc
->base
, &config
->base
))
284 ctx_attribs
[num_ctx_attribs
++] = __DRI_CTX_ATTRIB_MAJOR_VERSION
;
285 ctx_attribs
[num_ctx_attribs
++] = major_ver
;
286 ctx_attribs
[num_ctx_attribs
++] = __DRI_CTX_ATTRIB_MINOR_VERSION
;
287 ctx_attribs
[num_ctx_attribs
++] = minor_ver
;
289 /* Only send a value when the non-default value is requested. By doing
290 * this we don't have to check the driver's DRI2 version before sending the
293 if (reset
!= __DRI_CTX_RESET_NO_NOTIFICATION
) {
294 ctx_attribs
[num_ctx_attribs
++] = __DRI_CTX_ATTRIB_RESET_STRATEGY
;
295 ctx_attribs
[num_ctx_attribs
++] = reset
;
299 ctx_attribs
[num_ctx_attribs
++] = __DRI_CTX_ATTRIB_FLAGS
;
301 /* The current __DRI_CTX_FLAG_* values are identical to the
302 * GLX_CONTEXT_*_BIT values.
304 ctx_attribs
[num_ctx_attribs
++] = flags
;
307 /* The renderType is retrieved from attribs, or set to default
310 pcp
->base
.renderType
= renderType
;
313 (*psc
->dri2
->createContextAttribs
) (psc
->driScreen
,
322 if (pcp
->driContext
== NULL
)
325 pcp
->base
.vtable
= &dri2_context_vtable
;
336 dri2DestroyDrawable(__GLXDRIdrawable
*base
)
338 struct dri2_screen
*psc
= (struct dri2_screen
*) base
->psc
;
339 struct dri2_drawable
*pdraw
= (struct dri2_drawable
*) base
;
340 struct glx_display
*dpyPriv
= psc
->base
.display
;
341 struct dri2_display
*pdp
= (struct dri2_display
*)dpyPriv
->dri2Display
;
343 __glxHashDelete(pdp
->dri2Hash
, pdraw
->base
.xDrawable
);
344 (*psc
->core
->destroyDrawable
) (pdraw
->driDrawable
);
346 /* If it's a GLX 1.3 drawables, we can destroy the DRI2 drawable
347 * now, as the application explicitly asked to destroy the GLX
348 * drawable. Otherwise, for legacy drawables, we let the DRI2
349 * drawable linger on the server, since there's no good way of
350 * knowing when the application is done with it. The server will
351 * destroy the DRI2 drawable when it destroys the X drawable or the
352 * client exits anyway. */
353 if (pdraw
->base
.xDrawable
!= pdraw
->base
.drawable
)
354 DRI2DestroyDrawable(psc
->base
.dpy
, pdraw
->base
.xDrawable
);
359 static __GLXDRIdrawable
*
360 dri2CreateDrawable(struct glx_screen
*base
, XID xDrawable
,
361 GLXDrawable drawable
, struct glx_config
*config_base
)
363 struct dri2_drawable
*pdraw
;
364 struct dri2_screen
*psc
= (struct dri2_screen
*) base
;
365 __GLXDRIconfigPrivate
*config
= (__GLXDRIconfigPrivate
*) config_base
;
366 struct glx_display
*dpyPriv
;
367 struct dri2_display
*pdp
;
368 GLint vblank_mode
= DRI_CONF_VBLANK_DEF_INTERVAL_1
;
370 dpyPriv
= __glXInitialize(psc
->base
.dpy
);
374 pdraw
= calloc(1, sizeof(*pdraw
));
378 pdraw
->base
.destroyDrawable
= dri2DestroyDrawable
;
379 pdraw
->base
.xDrawable
= xDrawable
;
380 pdraw
->base
.drawable
= drawable
;
381 pdraw
->base
.psc
= &psc
->base
;
382 pdraw
->bufferCount
= 0;
383 pdraw
->swap_interval
= 1; /* default may be overridden below */
384 pdraw
->have_back
= 0;
387 psc
->config
->configQueryi(psc
->driScreen
,
388 "vblank_mode", &vblank_mode
);
390 switch (vblank_mode
) {
391 case DRI_CONF_VBLANK_NEVER
:
392 case DRI_CONF_VBLANK_DEF_INTERVAL_0
:
393 pdraw
->swap_interval
= 0;
395 case DRI_CONF_VBLANK_DEF_INTERVAL_1
:
396 case DRI_CONF_VBLANK_ALWAYS_SYNC
:
398 pdraw
->swap_interval
= 1;
402 DRI2CreateDrawable(psc
->base
.dpy
, xDrawable
);
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
);
512 static __DRIcontext
*
513 dri2GetCurrentContext()
515 struct glx_context
*gc
= __glXGetCurrentContext();
516 struct dri2_context
*dri2Ctx
= (struct dri2_context
*)gc
;
518 return dri2Ctx
? dri2Ctx
->driContext
: NULL
;
522 * dri2Throttle - Request driver throttling
524 * This function uses the DRI2 throttle extension to give the
525 * driver the opportunity to throttle on flush front, copysubbuffer
529 dri2Throttle(struct dri2_screen
*psc
,
530 struct dri2_drawable
*draw
,
531 enum __DRI2throttleReason reason
)
534 __DRIcontext
*ctx
= dri2GetCurrentContext();
536 psc
->throttle
->throttle(ctx
, draw
->driDrawable
, reason
);
541 * Asks the driver to flush any queued work necessary for serializing with the
542 * X command stream, and optionally the slightly more strict requirement of
543 * glFlush() equivalence (which would require flushing even if nothing had
544 * been drawn to a window system framebuffer, for example).
547 dri2Flush(struct dri2_screen
*psc
,
549 struct dri2_drawable
*draw
,
551 enum __DRI2throttleReason throttle_reason
)
553 if (ctx
&& psc
->f
&& psc
->f
->base
.version
>= 4) {
554 psc
->f
->flush_with_flags(ctx
, draw
->driDrawable
, flags
, throttle_reason
);
556 if (flags
& __DRI2_FLUSH_CONTEXT
)
560 psc
->f
->flush(draw
->driDrawable
);
562 dri2Throttle(psc
, draw
, throttle_reason
);
567 __dri2CopySubBuffer(__GLXDRIdrawable
*pdraw
, int x
, int y
,
568 int width
, int height
,
569 enum __DRI2throttleReason reason
, Bool flush
)
571 struct dri2_drawable
*priv
= (struct dri2_drawable
*) pdraw
;
572 struct dri2_screen
*psc
= (struct dri2_screen
*) pdraw
->psc
;
574 XserverRegion region
;
575 __DRIcontext
*ctx
= dri2GetCurrentContext();
578 /* Check we have the right attachments */
579 if (!priv
->have_back
)
583 xrect
.y
= priv
->height
- y
- height
;
585 xrect
.height
= height
;
587 flags
= __DRI2_FLUSH_DRAWABLE
;
589 flags
|= __DRI2_FLUSH_CONTEXT
;
590 dri2Flush(psc
, ctx
, priv
, flags
, __DRI2_THROTTLE_SWAPBUFFER
);
592 region
= XFixesCreateRegion(psc
->base
.dpy
, &xrect
, 1);
593 DRI2CopyRegion(psc
->base
.dpy
, pdraw
->xDrawable
, region
,
594 DRI2BufferFrontLeft
, DRI2BufferBackLeft
);
596 /* Refresh the fake front (if present) after we just damaged the real
599 if (priv
->have_fake_front
)
600 DRI2CopyRegion(psc
->base
.dpy
, pdraw
->xDrawable
, region
,
601 DRI2BufferFakeFrontLeft
, DRI2BufferFrontLeft
);
603 XFixesDestroyRegion(psc
->base
.dpy
, region
);
607 dri2CopySubBuffer(__GLXDRIdrawable
*pdraw
, int x
, int y
,
608 int width
, int height
, Bool flush
)
610 __dri2CopySubBuffer(pdraw
, x
, y
, width
, height
,
611 __DRI2_THROTTLE_COPYSUBBUFFER
, flush
);
616 dri2_copy_drawable(struct dri2_drawable
*priv
, int dest
, int src
)
619 XserverRegion region
;
620 struct dri2_screen
*psc
= (struct dri2_screen
*) priv
->base
.psc
;
624 xrect
.width
= priv
->width
;
625 xrect
.height
= priv
->height
;
628 (*psc
->f
->flush
) (priv
->driDrawable
);
630 region
= XFixesCreateRegion(psc
->base
.dpy
, &xrect
, 1);
631 DRI2CopyRegion(psc
->base
.dpy
, priv
->base
.xDrawable
, region
, dest
, src
);
632 XFixesDestroyRegion(psc
->base
.dpy
, region
);
637 dri2_wait_x(struct glx_context
*gc
)
639 struct dri2_drawable
*priv
= (struct dri2_drawable
*)
640 GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
);
642 if (priv
== NULL
|| !priv
->have_fake_front
)
645 dri2_copy_drawable(priv
, DRI2BufferFakeFrontLeft
, DRI2BufferFrontLeft
);
649 dri2_wait_gl(struct glx_context
*gc
)
651 struct dri2_drawable
*priv
= (struct dri2_drawable
*)
652 GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
);
654 if (priv
== NULL
|| !priv
->have_fake_front
)
657 dri2_copy_drawable(priv
, DRI2BufferFrontLeft
, DRI2BufferFakeFrontLeft
);
661 * Called by the driver when it needs to update the real front buffer with the
662 * contents of its fake front buffer.
665 dri2FlushFrontBuffer(__DRIdrawable
*driDrawable
, void *loaderPrivate
)
667 struct glx_display
*priv
;
668 struct dri2_display
*pdp
;
669 struct glx_context
*gc
;
670 struct dri2_drawable
*pdraw
= loaderPrivate
;
671 struct dri2_screen
*psc
;
676 if (!pdraw
->base
.psc
)
679 psc
= (struct dri2_screen
*) pdraw
->base
.psc
;
681 priv
= __glXInitialize(psc
->base
.dpy
);
686 pdp
= (struct dri2_display
*) priv
->dri2Display
;
687 gc
= __glXGetCurrentContext();
689 dri2Throttle(psc
, pdraw
, __DRI2_THROTTLE_FLUSHFRONT
);
691 /* Old servers don't send invalidate events */
692 if (!pdp
->invalidateAvailable
)
693 dri2InvalidateBuffers(priv
->dpy
, pdraw
->base
.xDrawable
);
700 dri2DestroyScreen(struct glx_screen
*base
)
702 struct dri2_screen
*psc
= (struct dri2_screen
*) base
;
704 /* Free the direct rendering per screen data */
705 (*psc
->core
->destroyScreen
) (psc
->driScreen
);
706 driDestroyConfigs(psc
->driver_configs
);
712 * Process list of buffer received from the server
714 * Processes the list of buffers received in a reply from the server to either
715 * \c DRI2GetBuffers or \c DRI2GetBuffersWithFormat.
718 process_buffers(struct dri2_drawable
* pdraw
, DRI2Buffer
* buffers
,
723 pdraw
->bufferCount
= count
;
724 pdraw
->have_fake_front
= 0;
725 pdraw
->have_back
= 0;
727 /* This assumes the DRI2 buffer attachment tokens matches the
728 * __DRIbuffer tokens. */
729 for (i
= 0; i
< count
; i
++) {
730 pdraw
->buffers
[i
].attachment
= buffers
[i
].attachment
;
731 pdraw
->buffers
[i
].name
= buffers
[i
].name
;
732 pdraw
->buffers
[i
].pitch
= buffers
[i
].pitch
;
733 pdraw
->buffers
[i
].cpp
= buffers
[i
].cpp
;
734 pdraw
->buffers
[i
].flags
= buffers
[i
].flags
;
735 if (pdraw
->buffers
[i
].attachment
== __DRI_BUFFER_FAKE_FRONT_LEFT
)
736 pdraw
->have_fake_front
= 1;
737 if (pdraw
->buffers
[i
].attachment
== __DRI_BUFFER_BACK_LEFT
)
738 pdraw
->have_back
= 1;
743 unsigned dri2GetSwapEventType(Display
* dpy
, XID drawable
)
745 struct glx_display
*glx_dpy
= __glXInitialize(dpy
);
746 __GLXDRIdrawable
*pdraw
;
747 pdraw
= dri2GetGlxDrawableFromXDrawableId(dpy
, drawable
);
748 if (!pdraw
|| !(pdraw
->eventMask
& GLX_BUFFER_SWAP_COMPLETE_INTEL_MASK
))
750 return glx_dpy
->codes
->first_event
+ GLX_BufferSwapComplete
;
753 static void show_fps(struct dri2_drawable
*draw
)
756 ((struct dri2_screen
*) draw
->base
.psc
)->show_fps_interval
;
758 uint64_t current_time
;
760 gettimeofday(&tv
, 0);
761 current_time
= (uint64_t)tv
.tv_sec
*1000000 + (uint64_t)tv
.tv_usec
;
765 if (draw
->previous_time
+ interval
* 1000000 <= current_time
) {
766 if (draw
->previous_time
) {
767 fprintf(stderr
, "libGL: FPS = %.1f\n",
768 ((uint64_t)draw
->frames
* 1000000) /
769 (double)(current_time
- draw
->previous_time
));
772 draw
->previous_time
= current_time
;
777 dri2XcbSwapBuffers(Display
*dpy
,
778 __GLXDRIdrawable
*pdraw
,
783 xcb_dri2_swap_buffers_cookie_t swap_buffers_cookie
;
784 xcb_dri2_swap_buffers_reply_t
*swap_buffers_reply
;
785 uint32_t target_msc_hi
, target_msc_lo
;
786 uint32_t divisor_hi
, divisor_lo
;
787 uint32_t remainder_hi
, remainder_lo
;
789 xcb_connection_t
*c
= XGetXCBConnection(dpy
);
791 split_counter(target_msc
, &target_msc_hi
, &target_msc_lo
);
792 split_counter(divisor
, &divisor_hi
, &divisor_lo
);
793 split_counter(remainder
, &remainder_hi
, &remainder_lo
);
795 swap_buffers_cookie
=
796 xcb_dri2_swap_buffers_unchecked(c
, pdraw
->xDrawable
,
797 target_msc_hi
, target_msc_lo
,
798 divisor_hi
, divisor_lo
,
799 remainder_hi
, remainder_lo
);
801 /* Immediately wait on the swapbuffers reply. If we didn't, we'd have
802 * to do so some time before reusing a (non-pageflipped) backbuffer.
803 * Otherwise, the new rendering could get ahead of the X Server's
804 * dispatch of the swapbuffer and you'd display garbage.
806 * We use XSync() first to reap the invalidate events through the event
807 * filter, to ensure that the next drawing doesn't use an invalidated
813 xcb_dri2_swap_buffers_reply(c
, swap_buffers_cookie
, NULL
);
814 if (swap_buffers_reply
) {
815 ret
= merge_counter(swap_buffers_reply
->swap_hi
,
816 swap_buffers_reply
->swap_lo
);
817 free(swap_buffers_reply
);
823 dri2SwapBuffers(__GLXDRIdrawable
*pdraw
, int64_t target_msc
, int64_t divisor
,
824 int64_t remainder
, Bool flush
)
826 struct dri2_drawable
*priv
= (struct dri2_drawable
*) pdraw
;
827 struct glx_display
*dpyPriv
= __glXInitialize(priv
->base
.psc
->dpy
);
828 struct dri2_screen
*psc
= (struct dri2_screen
*) priv
->base
.psc
;
829 struct dri2_display
*pdp
=
830 (struct dri2_display
*)dpyPriv
->dri2Display
;
833 /* Check we have the right attachments */
834 if (!priv
->have_back
)
837 /* Old servers can't handle swapbuffers */
838 if (!pdp
->swapAvailable
) {
839 __dri2CopySubBuffer(pdraw
, 0, 0, priv
->width
, priv
->height
,
840 __DRI2_THROTTLE_SWAPBUFFER
, flush
);
842 __DRIcontext
*ctx
= dri2GetCurrentContext();
843 unsigned flags
= __DRI2_FLUSH_DRAWABLE
;
845 flags
|= __DRI2_FLUSH_CONTEXT
;
846 dri2Flush(psc
, ctx
, priv
, flags
, __DRI2_THROTTLE_SWAPBUFFER
);
848 ret
= dri2XcbSwapBuffers(pdraw
->psc
->dpy
, pdraw
,
849 target_msc
, divisor
, remainder
);
852 if (psc
->show_fps_interval
) {
856 /* Old servers don't send invalidate events */
857 if (!pdp
->invalidateAvailable
)
858 dri2InvalidateBuffers(dpyPriv
->dpy
, pdraw
->xDrawable
);
864 dri2GetBuffers(__DRIdrawable
* driDrawable
,
865 int *width
, int *height
,
866 unsigned int *attachments
, int count
,
867 int *out_count
, void *loaderPrivate
)
869 struct dri2_drawable
*pdraw
= loaderPrivate
;
872 buffers
= DRI2GetBuffers(pdraw
->base
.psc
->dpy
, pdraw
->base
.xDrawable
,
873 width
, height
, attachments
, count
, out_count
);
877 pdraw
->width
= *width
;
878 pdraw
->height
= *height
;
879 process_buffers(pdraw
, buffers
, *out_count
);
883 return pdraw
->buffers
;
887 dri2GetBuffersWithFormat(__DRIdrawable
* driDrawable
,
888 int *width
, int *height
,
889 unsigned int *attachments
, int count
,
890 int *out_count
, void *loaderPrivate
)
892 struct dri2_drawable
*pdraw
= loaderPrivate
;
895 buffers
= DRI2GetBuffersWithFormat(pdraw
->base
.psc
->dpy
,
896 pdraw
->base
.xDrawable
,
897 width
, height
, attachments
,
902 pdraw
->width
= *width
;
903 pdraw
->height
= *height
;
904 process_buffers(pdraw
, buffers
, *out_count
);
908 return pdraw
->buffers
;
912 dri2SetSwapInterval(__GLXDRIdrawable
*pdraw
, int interval
)
914 xcb_connection_t
*c
= XGetXCBConnection(pdraw
->psc
->dpy
);
915 struct dri2_drawable
*priv
= (struct dri2_drawable
*) pdraw
;
916 GLint vblank_mode
= DRI_CONF_VBLANK_DEF_INTERVAL_1
;
917 struct dri2_screen
*psc
= (struct dri2_screen
*) priv
->base
.psc
;
920 psc
->config
->configQueryi(psc
->driScreen
,
921 "vblank_mode", &vblank_mode
);
923 switch (vblank_mode
) {
924 case DRI_CONF_VBLANK_NEVER
:
926 return GLX_BAD_VALUE
;
928 case DRI_CONF_VBLANK_ALWAYS_SYNC
:
930 return GLX_BAD_VALUE
;
936 xcb_dri2_swap_interval(c
, priv
->base
.xDrawable
, interval
);
937 priv
->swap_interval
= interval
;
943 dri2GetSwapInterval(__GLXDRIdrawable
*pdraw
)
945 struct dri2_drawable
*priv
= (struct dri2_drawable
*) pdraw
;
947 return priv
->swap_interval
;
950 static const __DRIdri2LoaderExtension dri2LoaderExtension
= {
951 {__DRI_DRI2_LOADER
, __DRI_DRI2_LOADER_VERSION
},
953 dri2FlushFrontBuffer
,
954 dri2GetBuffersWithFormat
,
957 static const __DRIdri2LoaderExtension dri2LoaderExtension_old
= {
958 {__DRI_DRI2_LOADER
, __DRI_DRI2_LOADER_VERSION
},
960 dri2FlushFrontBuffer
,
964 static const __DRIuseInvalidateExtension dri2UseInvalidate
= {
965 { __DRI_USE_INVALIDATE
, __DRI_USE_INVALIDATE_VERSION
}
969 dri2InvalidateBuffers(Display
*dpy
, XID drawable
)
971 __GLXDRIdrawable
*pdraw
=
972 dri2GetGlxDrawableFromXDrawableId(dpy
, drawable
);
973 struct dri2_screen
*psc
;
974 struct dri2_drawable
*pdp
= (struct dri2_drawable
*) pdraw
;
979 psc
= (struct dri2_screen
*) pdraw
->psc
;
981 if (pdraw
&& psc
->f
&& psc
->f
->base
.version
>= 3 && psc
->f
->invalidate
)
982 psc
->f
->invalidate(pdp
->driDrawable
);
986 dri2_bind_tex_image(Display
* dpy
,
987 GLXDrawable drawable
,
988 int buffer
, const int *attrib_list
)
990 struct glx_context
*gc
= __glXGetCurrentContext();
991 struct dri2_context
*pcp
= (struct dri2_context
*) gc
;
992 __GLXDRIdrawable
*base
= GetGLXDRIDrawable(dpy
, drawable
);
993 struct glx_display
*dpyPriv
= __glXInitialize(dpy
);
994 struct dri2_drawable
*pdraw
= (struct dri2_drawable
*) base
;
995 struct dri2_display
*pdp
;
996 struct dri2_screen
*psc
;
1001 pdp
= (struct dri2_display
*) dpyPriv
->dri2Display
;
1003 if (pdraw
!= NULL
) {
1004 psc
= (struct dri2_screen
*) base
->psc
;
1006 if (!pdp
->invalidateAvailable
&& psc
->f
&&
1007 psc
->f
->base
.version
>= 3 && psc
->f
->invalidate
)
1008 psc
->f
->invalidate(pdraw
->driDrawable
);
1010 if (psc
->texBuffer
->base
.version
>= 2 &&
1011 psc
->texBuffer
->setTexBuffer2
!= NULL
) {
1012 (*psc
->texBuffer
->setTexBuffer2
) (pcp
->driContext
,
1013 pdraw
->base
.textureTarget
,
1014 pdraw
->base
.textureFormat
,
1015 pdraw
->driDrawable
);
1018 (*psc
->texBuffer
->setTexBuffer
) (pcp
->driContext
,
1019 pdraw
->base
.textureTarget
,
1020 pdraw
->driDrawable
);
1026 dri2_release_tex_image(Display
* dpy
, GLXDrawable drawable
, int buffer
)
1028 #if __DRI_TEX_BUFFER_VERSION >= 3
1029 struct glx_context
*gc
= __glXGetCurrentContext();
1030 struct dri2_context
*pcp
= (struct dri2_context
*) gc
;
1031 __GLXDRIdrawable
*base
= GetGLXDRIDrawable(dpy
, drawable
);
1032 struct glx_display
*dpyPriv
= __glXInitialize(dpy
);
1033 struct dri2_drawable
*pdraw
= (struct dri2_drawable
*) base
;
1034 struct dri2_display
*pdp
=
1035 (struct dri2_display
*) dpyPriv
->dri2Display
;
1036 struct dri2_screen
*psc
;
1038 if (pdraw
!= NULL
) {
1039 psc
= (struct dri2_screen
*) base
->psc
;
1041 if (psc
->texBuffer
->base
.version
>= 3 &&
1042 psc
->texBuffer
->releaseTexBuffer
!= NULL
) {
1043 (*psc
->texBuffer
->releaseTexBuffer
) (pcp
->driContext
,
1044 pdraw
->base
.textureTarget
,
1045 pdraw
->driDrawable
);
1051 static const struct glx_context_vtable dri2_context_vtable
= {
1052 dri2_destroy_context
,
1054 dri2_unbind_context
,
1058 dri2_bind_tex_image
,
1059 dri2_release_tex_image
,
1060 NULL
, /* get_proc_address */
1064 dri2BindExtensions(struct dri2_screen
*psc
, struct glx_display
* priv
,
1065 const char *driverName
)
1067 const struct dri2_display
*const pdp
= (struct dri2_display
*)
1069 const __DRIextension
**extensions
;
1072 extensions
= psc
->core
->getExtensions(psc
->driScreen
);
1074 __glXEnableDirectExtension(&psc
->base
, "GLX_SGI_video_sync");
1075 __glXEnableDirectExtension(&psc
->base
, "GLX_SGI_swap_control");
1076 __glXEnableDirectExtension(&psc
->base
, "GLX_MESA_swap_control");
1077 __glXEnableDirectExtension(&psc
->base
, "GLX_SGI_make_current_read");
1080 * GLX_INTEL_swap_event is broken on the server side, where it's
1081 * currently unconditionally enabled. This completely breaks
1082 * systems running on drivers which don't support that extension.
1083 * There's no way to test for its presence on this side, so instead
1084 * of disabling it unconditionally, just disable it for drivers
1085 * which are known to not support it, or for DDX drivers supporting
1086 * only an older (pre-ScheduleSwap) version of DRI2.
1088 * This is a hack which is required until:
1089 * http://lists.x.org/archives/xorg-devel/2013-February/035449.html
1090 * is merged and updated xserver makes it's way into distros:
1092 if (pdp
->swapAvailable
&& strcmp(driverName
, "vmwgfx") != 0) {
1093 __glXEnableDirectExtension(&psc
->base
, "GLX_INTEL_swap_event");
1096 if (psc
->dri2
->base
.version
>= 3) {
1097 const unsigned mask
= psc
->dri2
->getAPIMask(psc
->driScreen
);
1099 __glXEnableDirectExtension(&psc
->base
, "GLX_ARB_create_context");
1100 __glXEnableDirectExtension(&psc
->base
, "GLX_ARB_create_context_profile");
1102 if ((mask
& (1 << __DRI_API_GLES2
)) != 0)
1103 __glXEnableDirectExtension(&psc
->base
,
1104 "GLX_EXT_create_context_es2_profile");
1107 for (i
= 0; extensions
[i
]; i
++) {
1108 if ((strcmp(extensions
[i
]->name
, __DRI_TEX_BUFFER
) == 0)) {
1109 psc
->texBuffer
= (__DRItexBufferExtension
*) extensions
[i
];
1110 __glXEnableDirectExtension(&psc
->base
, "GLX_EXT_texture_from_pixmap");
1113 if ((strcmp(extensions
[i
]->name
, __DRI2_FLUSH
) == 0)) {
1114 psc
->f
= (__DRI2flushExtension
*) extensions
[i
];
1115 /* internal driver extension, no GL extension exposed */
1118 if ((strcmp(extensions
[i
]->name
, __DRI2_CONFIG_QUERY
) == 0))
1119 psc
->config
= (__DRI2configQueryExtension
*) extensions
[i
];
1121 if (((strcmp(extensions
[i
]->name
, __DRI2_THROTTLE
) == 0)))
1122 psc
->throttle
= (__DRI2throttleExtension
*) extensions
[i
];
1124 /* DRI2 version 3 is also required because
1125 * GLX_ARB_create_context_robustness requires GLX_ARB_create_context.
1127 if (psc
->dri2
->base
.version
>= 3
1128 && strcmp(extensions
[i
]->name
, __DRI2_ROBUSTNESS
) == 0)
1129 __glXEnableDirectExtension(&psc
->base
,
1130 "GLX_ARB_create_context_robustness");
1132 /* DRI2 version 3 is also required because GLX_MESA_query_renderer
1133 * requires GLX_ARB_create_context_profile.
1135 if (psc
->dri2
->base
.version
>= 3
1136 && strcmp(extensions
[i
]->name
, __DRI2_RENDERER_QUERY
) == 0) {
1137 psc
->rendererQuery
= (__DRI2rendererQueryExtension
*) extensions
[i
];
1138 __glXEnableDirectExtension(&psc
->base
, "GLX_MESA_query_renderer");
1143 static const struct glx_screen_vtable dri2_screen_vtable
= {
1144 dri2_create_context
,
1145 dri2_create_context_attribs
,
1146 dri2_query_renderer_integer
,
1147 dri2_query_renderer_string
,
1150 static struct glx_screen
*
1151 dri2CreateScreen(int screen
, struct glx_display
* priv
)
1153 const __DRIconfig
**driver_configs
;
1154 const __DRIextension
**extensions
;
1155 const struct dri2_display
*const pdp
= (struct dri2_display
*)
1157 struct dri2_screen
*psc
;
1158 __GLXDRIscreen
*psp
;
1159 struct glx_config
*configs
= NULL
, *visuals
= NULL
;
1160 char *driverName
= NULL
, *loader_driverName
, *deviceName
, *tmp
;
1164 psc
= calloc(1, sizeof *psc
);
1170 if (!glx_screen_init(&psc
->base
, screen
, priv
)) {
1175 if (!DRI2Connect(priv
->dpy
, RootWindow(priv
->dpy
, screen
),
1176 &driverName
, &deviceName
)) {
1177 glx_screen_cleanup(&psc
->base
);
1179 InfoMessageF("screen %d does not appear to be DRI2 capable\n", screen
);
1184 psc
->fd
= open(deviceName
, O_RDWR
| O_CLOEXEC
);
1185 if (psc
->fd
== -1 && errno
== EINVAL
)
1188 psc
->fd
= open(deviceName
, O_RDWR
);
1190 fcntl(psc
->fd
, F_SETFD
, fcntl(psc
->fd
, F_GETFD
) | FD_CLOEXEC
);
1193 ErrorMessageF("failed to open drm device: %s\n", strerror(errno
));
1197 /* If Mesa knows about the appropriate driver for this fd, then trust it.
1198 * Otherwise, default to the server's value.
1200 loader_driverName
= loader_get_driver_for_fd(psc
->fd
, 0);
1201 if (loader_driverName
) {
1203 driverName
= loader_driverName
;
1206 psc
->driver
= driOpenDriver(driverName
);
1207 if (psc
->driver
== NULL
) {
1208 ErrorMessageF("driver pointer missing\n");
1212 extensions
= driGetDriverExtensions(psc
->driver
, driverName
);
1213 if (extensions
== NULL
)
1216 for (i
= 0; extensions
[i
]; i
++) {
1217 if (strcmp(extensions
[i
]->name
, __DRI_CORE
) == 0)
1218 psc
->core
= (__DRIcoreExtension
*) extensions
[i
];
1219 if (strcmp(extensions
[i
]->name
, __DRI_DRI2
) == 0)
1220 psc
->dri2
= (__DRIdri2Extension
*) extensions
[i
];
1223 if (psc
->core
== NULL
|| psc
->dri2
== NULL
) {
1224 ErrorMessageF("core dri or dri2 extension not found\n");
1228 if (drmGetMagic(psc
->fd
, &magic
)) {
1229 ErrorMessageF("failed to get magic\n");
1233 if (!DRI2Authenticate(priv
->dpy
, RootWindow(priv
->dpy
, screen
), magic
)) {
1234 ErrorMessageF("failed to authenticate magic %d\n", magic
);
1238 if (psc
->dri2
->base
.version
>= 4) {
1240 psc
->dri2
->createNewScreen2(screen
, psc
->fd
,
1241 (const __DRIextension
**)
1242 &pdp
->loader_extensions
[0],
1244 &driver_configs
, psc
);
1247 psc
->dri2
->createNewScreen(screen
, psc
->fd
,
1248 (const __DRIextension
**)
1249 &pdp
->loader_extensions
[0],
1250 &driver_configs
, psc
);
1253 if (psc
->driScreen
== NULL
) {
1254 ErrorMessageF("failed to create dri screen\n");
1258 dri2BindExtensions(psc
, priv
, driverName
);
1260 configs
= driConvertConfigs(psc
->core
, psc
->base
.configs
, driver_configs
);
1261 visuals
= driConvertConfigs(psc
->core
, psc
->base
.visuals
, driver_configs
);
1263 if (!configs
|| !visuals
)
1266 glx_config_destroy_list(psc
->base
.configs
);
1267 psc
->base
.configs
= configs
;
1268 glx_config_destroy_list(psc
->base
.visuals
);
1269 psc
->base
.visuals
= visuals
;
1271 psc
->driver_configs
= driver_configs
;
1273 psc
->base
.vtable
= &dri2_screen_vtable
;
1275 psc
->base
.driScreen
= psp
;
1276 psp
->destroyScreen
= dri2DestroyScreen
;
1277 psp
->createDrawable
= dri2CreateDrawable
;
1278 psp
->swapBuffers
= dri2SwapBuffers
;
1279 psp
->getDrawableMSC
= NULL
;
1280 psp
->waitForMSC
= NULL
;
1281 psp
->waitForSBC
= NULL
;
1282 psp
->setSwapInterval
= NULL
;
1283 psp
->getSwapInterval
= NULL
;
1285 if (pdp
->driMinor
>= 2) {
1286 psp
->getDrawableMSC
= dri2DrawableGetMSC
;
1287 psp
->waitForMSC
= dri2WaitForMSC
;
1288 psp
->waitForSBC
= dri2WaitForSBC
;
1289 psp
->setSwapInterval
= dri2SetSwapInterval
;
1290 psp
->getSwapInterval
= dri2GetSwapInterval
;
1291 __glXEnableDirectExtension(&psc
->base
, "GLX_OML_sync_control");
1294 /* DRI2 suports SubBuffer through DRI2CopyRegion, so it's always
1296 psp
->copySubBuffer
= dri2CopySubBuffer
;
1297 __glXEnableDirectExtension(&psc
->base
, "GLX_MESA_copy_sub_buffer");
1302 tmp
= getenv("LIBGL_SHOW_FPS");
1303 psc
->show_fps_interval
= (tmp
) ? atoi(tmp
) : 0;
1304 if (psc
->show_fps_interval
< 0)
1305 psc
->show_fps_interval
= 0;
1310 CriticalErrorMessageF("failed to load driver: %s\n", driverName
);
1313 glx_config_destroy_list(configs
);
1315 glx_config_destroy_list(visuals
);
1317 psc
->core
->destroyScreen(psc
->driScreen
);
1318 psc
->driScreen
= NULL
;
1322 dlclose(psc
->driver
);
1326 glx_screen_cleanup(&psc
->base
);
1332 /* Called from __glXFreeDisplayPrivate.
1335 dri2DestroyDisplay(__GLXDRIdisplay
* dpy
)
1337 struct dri2_display
*pdp
= (struct dri2_display
*) dpy
;
1339 __glxHashDestroy(pdp
->dri2Hash
);
1343 _X_HIDDEN __GLXDRIdrawable
*
1344 dri2GetGlxDrawableFromXDrawableId(Display
*dpy
, XID id
)
1346 struct glx_display
*d
= __glXInitialize(dpy
);
1347 struct dri2_display
*pdp
= (struct dri2_display
*) d
->dri2Display
;
1348 __GLXDRIdrawable
*pdraw
;
1350 if (__glxHashLookup(pdp
->dri2Hash
, id
, (void *) &pdraw
) == 0)
1357 * Allocate, initialize and return a __DRIdisplayPrivate object.
1358 * This is called from __glXInitialize() when we are given a new
1361 _X_HIDDEN __GLXDRIdisplay
*
1362 dri2CreateDisplay(Display
* dpy
)
1364 struct dri2_display
*pdp
;
1365 int eventBase
, errorBase
, i
;
1367 if (!DRI2QueryExtension(dpy
, &eventBase
, &errorBase
))
1370 pdp
= malloc(sizeof *pdp
);
1374 if (!DRI2QueryVersion(dpy
, &pdp
->driMajor
, &pdp
->driMinor
)) {
1380 pdp
->swapAvailable
= (pdp
->driMinor
>= 2);
1381 pdp
->invalidateAvailable
= (pdp
->driMinor
>= 3);
1383 pdp
->base
.destroyDisplay
= dri2DestroyDisplay
;
1384 pdp
->base
.createScreen
= dri2CreateScreen
;
1387 if (pdp
->driMinor
< 1)
1388 pdp
->loader_extensions
[i
++] = &dri2LoaderExtension_old
.base
;
1390 pdp
->loader_extensions
[i
++] = &dri2LoaderExtension
.base
;
1392 pdp
->loader_extensions
[i
++] = &systemTimeExtension
.base
;
1394 pdp
->loader_extensions
[i
++] = &dri2UseInvalidate
.base
;
1396 pdp
->loader_extensions
[i
++] = NULL
;
1398 pdp
->dri2Hash
= __glxHashCreate();
1399 if (pdp
->dri2Hash
== NULL
) {
1407 #endif /* GLX_DIRECT_RENDERING */