2 * Copyright © 2013 Keith Packard
4 * Permission to use, copy, modify, distribute, and sell this software and its
5 * documentation for any purpose is hereby granted without fee, provided that
6 * the above copyright notice appear in all copies and that both that copyright
7 * notice and this permission notice appear in supporting documentation, and
8 * that the name of the copyright holders not be used in advertising or
9 * publicity pertaining to distribution of the software without specific,
10 * written prior permission. The copyright holders make no representations
11 * about the suitability of this software for any purpose. It is provided "as
12 * is" without express or implied warranty.
14 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
15 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
16 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
17 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
18 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
19 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
24 * Portions of this code were adapted from dri2_glx.c which carries the
25 * following copyright:
27 * Copyright © 2008 Red Hat, Inc.
29 * Permission is hereby granted, free of charge, to any person obtaining a
30 * copy of this software and associated documentation files (the "Soft-
31 * ware"), to deal in the Software without restriction, including without
32 * limitation the rights to use, copy, modify, merge, publish, distribute,
33 * and/or sell copies of the Software, and to permit persons to whom the
34 * Software is furnished to do so, provided that the above copyright
35 * notice(s) and this permission notice appear in all copies of the Soft-
36 * ware and that both the above copyright notice(s) and this permission
37 * notice appear in supporting documentation.
39 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
40 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL-
41 * ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY
42 * RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN
43 * THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSE-
44 * QUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
45 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
46 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFOR-
47 * MANCE OF THIS SOFTWARE.
49 * Except as contained in this notice, the name of a copyright holder shall
50 * not be used in advertising or otherwise to promote the sale, use or
51 * other dealings in this Software without prior written authorization of
52 * the copyright holder.
55 * Kristian Høgsberg (krh@redhat.com)
58 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
61 #include <X11/extensions/Xfixes.h>
62 #include <X11/Xlib-xcb.h>
63 #include <X11/xshmfence.h>
66 #include <xcb/present.h>
68 #include "glxclient.h"
72 #include <sys/types.h>
76 #include "dri_common.h"
77 #include "dri3_priv.h"
81 static const struct glx_context_vtable dri3_context_vtable
;
84 dri3_fence_reset(xcb_connection_t
*c
, struct dri3_buffer
*buffer
)
86 xshmfence_reset(buffer
->shm_fence
);
90 dri3_fence_set(struct dri3_buffer
*buffer
)
92 xshmfence_trigger(buffer
->shm_fence
);
96 dri3_fence_trigger(xcb_connection_t
*c
, struct dri3_buffer
*buffer
)
98 xcb_sync_trigger_fence(c
, buffer
->sync_fence
);
102 dri3_fence_await(xcb_connection_t
*c
, struct dri3_buffer
*buffer
)
105 xshmfence_await(buffer
->shm_fence
);
109 dri3_fence_triggered(struct dri3_buffer
*buffer
)
111 return xshmfence_query(buffer
->shm_fence
);
115 dri3_destroy_context(struct glx_context
*context
)
117 struct dri3_context
*pcp
= (struct dri3_context
*) context
;
118 struct dri3_screen
*psc
= (struct dri3_screen
*) context
->psc
;
120 driReleaseDrawables(&pcp
->base
);
122 free((char *) context
->extensions
);
124 (*psc
->core
->destroyContext
) (pcp
->driContext
);
130 dri3_bind_context(struct glx_context
*context
, struct glx_context
*old
,
131 GLXDrawable draw
, GLXDrawable read
)
133 struct dri3_context
*pcp
= (struct dri3_context
*) context
;
134 struct dri3_screen
*psc
= (struct dri3_screen
*) pcp
->base
.psc
;
135 struct dri3_drawable
*pdraw
, *pread
;
137 pdraw
= (struct dri3_drawable
*) driFetchDrawable(context
, draw
);
138 pread
= (struct dri3_drawable
*) driFetchDrawable(context
, read
);
140 driReleaseDrawables(&pcp
->base
);
142 if (pdraw
== NULL
|| pread
== NULL
)
143 return GLXBadDrawable
;
145 if (!(*psc
->core
->bindContext
) (pcp
->driContext
,
146 pdraw
->driDrawable
, pread
->driDrawable
))
147 return GLXBadContext
;
153 dri3_unbind_context(struct glx_context
*context
, struct glx_context
*new)
155 struct dri3_context
*pcp
= (struct dri3_context
*) context
;
156 struct dri3_screen
*psc
= (struct dri3_screen
*) pcp
->base
.psc
;
158 (*psc
->core
->unbindContext
) (pcp
->driContext
);
161 static struct glx_context
*
162 dri3_create_context_attribs(struct glx_screen
*base
,
163 struct glx_config
*config_base
,
164 struct glx_context
*shareList
,
165 unsigned num_attribs
,
166 const uint32_t *attribs
,
169 struct dri3_context
*pcp
= NULL
;
170 struct dri3_context
*pcp_shared
= NULL
;
171 struct dri3_screen
*psc
= (struct dri3_screen
*) base
;
172 __GLXDRIconfigPrivate
*config
= (__GLXDRIconfigPrivate
*) config_base
;
173 __DRIcontext
*shared
= NULL
;
175 uint32_t minor_ver
= 1;
176 uint32_t major_ver
= 2;
179 int reset
= __DRI_CTX_RESET_NO_NOTIFICATION
;
180 uint32_t ctx_attribs
[2 * 5];
181 unsigned num_ctx_attribs
= 0;
182 uint32_t render_type
;
184 /* Remap the GLX tokens to DRI2 tokens.
186 if (!dri2_convert_glx_attribs(num_attribs
, attribs
,
187 &major_ver
, &minor_ver
,
188 &render_type
, &flags
, &api
,
192 /* Check the renderType value */
193 if (!validate_renderType_against_config(config_base
, render_type
))
197 pcp_shared
= (struct dri3_context
*) shareList
;
198 shared
= pcp_shared
->driContext
;
201 pcp
= calloc(1, sizeof *pcp
);
203 *error
= __DRI_CTX_ERROR_NO_MEMORY
;
207 if (!glx_context_init(&pcp
->base
, &psc
->base
, &config
->base
))
210 ctx_attribs
[num_ctx_attribs
++] = __DRI_CTX_ATTRIB_MAJOR_VERSION
;
211 ctx_attribs
[num_ctx_attribs
++] = major_ver
;
212 ctx_attribs
[num_ctx_attribs
++] = __DRI_CTX_ATTRIB_MINOR_VERSION
;
213 ctx_attribs
[num_ctx_attribs
++] = minor_ver
;
215 /* Only send a value when the non-default value is requested. By doing
216 * this we don't have to check the driver's DRI3 version before sending the
219 if (reset
!= __DRI_CTX_RESET_NO_NOTIFICATION
) {
220 ctx_attribs
[num_ctx_attribs
++] = __DRI_CTX_ATTRIB_RESET_STRATEGY
;
221 ctx_attribs
[num_ctx_attribs
++] = reset
;
225 ctx_attribs
[num_ctx_attribs
++] = __DRI_CTX_ATTRIB_FLAGS
;
227 /* The current __DRI_CTX_FLAG_* values are identical to the
228 * GLX_CONTEXT_*_BIT values.
230 ctx_attribs
[num_ctx_attribs
++] = flags
;
234 (*psc
->image_driver
->createContextAttribs
) (psc
->driScreen
,
243 if (pcp
->driContext
== NULL
)
246 pcp
->base
.vtable
= &dri3_context_vtable
;
256 static struct glx_context
*
257 dri3_create_context(struct glx_screen
*base
,
258 struct glx_config
*config_base
,
259 struct glx_context
*shareList
, int renderType
)
263 return dri3_create_context_attribs(base
, config_base
, shareList
,
268 dri3_free_render_buffer(struct dri3_drawable
*pdraw
, struct dri3_buffer
*buffer
);
271 dri3_update_num_back(struct dri3_drawable
*priv
)
274 if (priv
->flipping
) {
275 if (!priv
->is_pixmap
&& !(priv
->present_capabilities
& XCB_PRESENT_CAPABILITY_ASYNC
))
279 if (priv
->swap_interval
== 0)
284 dri3_destroy_drawable(__GLXDRIdrawable
*base
)
286 struct dri3_screen
*psc
= (struct dri3_screen
*) base
->psc
;
287 struct dri3_drawable
*pdraw
= (struct dri3_drawable
*) base
;
288 xcb_connection_t
*c
= XGetXCBConnection(pdraw
->base
.psc
->dpy
);
291 (*psc
->core
->destroyDrawable
) (pdraw
->driDrawable
);
293 for (i
= 0; i
< DRI3_NUM_BUFFERS
; i
++) {
294 if (pdraw
->buffers
[i
])
295 dri3_free_render_buffer(pdraw
, pdraw
->buffers
[i
]);
298 if (pdraw
->special_event
)
299 xcb_unregister_for_special_event(c
, pdraw
->special_event
);
303 static __GLXDRIdrawable
*
304 dri3_create_drawable(struct glx_screen
*base
, XID xDrawable
,
305 GLXDrawable drawable
, struct glx_config
*config_base
)
307 struct dri3_drawable
*pdraw
;
308 struct dri3_screen
*psc
= (struct dri3_screen
*) base
;
309 __GLXDRIconfigPrivate
*config
= (__GLXDRIconfigPrivate
*) config_base
;
310 GLint vblank_mode
= DRI_CONF_VBLANK_DEF_INTERVAL_1
;
312 pdraw
= calloc(1, sizeof(*pdraw
));
316 pdraw
->base
.destroyDrawable
= dri3_destroy_drawable
;
317 pdraw
->base
.xDrawable
= xDrawable
;
318 pdraw
->base
.drawable
= drawable
;
319 pdraw
->base
.psc
= &psc
->base
;
320 pdraw
->swap_interval
= 1; /* default may be overridden below */
321 pdraw
->have_back
= 0;
322 pdraw
->have_fake_front
= 0;
325 psc
->config
->configQueryi(psc
->driScreen
,
326 "vblank_mode", &vblank_mode
);
328 switch (vblank_mode
) {
329 case DRI_CONF_VBLANK_NEVER
:
330 case DRI_CONF_VBLANK_DEF_INTERVAL_0
:
331 pdraw
->swap_interval
= 0;
333 case DRI_CONF_VBLANK_DEF_INTERVAL_1
:
334 case DRI_CONF_VBLANK_ALWAYS_SYNC
:
336 pdraw
->swap_interval
= 1;
340 dri3_update_num_back(pdraw
);
342 (void) __glXInitialize(psc
->base
.dpy
);
344 /* Create a new drawable */
346 (*psc
->image_driver
->createNewDrawable
) (psc
->driScreen
,
347 config
->driConfig
, pdraw
);
349 if (!pdraw
->driDrawable
) {
355 * Make sure server has the same swap interval we do for the new
358 if (psc
->vtable
.setSwapInterval
)
359 psc
->vtable
.setSwapInterval(&pdraw
->base
, pdraw
->swap_interval
);
365 * Process one Present event
368 dri3_handle_present_event(struct dri3_drawable
*priv
, xcb_present_generic_event_t
*ge
)
370 switch (ge
->evtype
) {
371 case XCB_PRESENT_CONFIGURE_NOTIFY
: {
372 xcb_present_configure_notify_event_t
*ce
= (void *) ge
;
374 priv
->width
= ce
->width
;
375 priv
->height
= ce
->height
;
378 case XCB_PRESENT_COMPLETE_NOTIFY
: {
379 xcb_present_complete_notify_event_t
*ce
= (void *) ge
;
381 /* Compute the processed SBC number from the received 32-bit serial number merged
382 * with the upper 32-bits of the sent 64-bit serial number while checking for
385 if (ce
->kind
== XCB_PRESENT_COMPLETE_KIND_PIXMAP
) {
386 priv
->recv_sbc
= (priv
->send_sbc
& 0xffffffff00000000LL
) | ce
->serial
;
387 if (priv
->recv_sbc
> priv
->send_sbc
)
388 priv
->recv_sbc
-= 0x100000000;
390 case XCB_PRESENT_COMPLETE_MODE_FLIP
:
391 priv
->flipping
= true;
393 case XCB_PRESENT_COMPLETE_MODE_COPY
:
394 priv
->flipping
= false;
397 dri3_update_num_back(priv
);
399 priv
->recv_msc_serial
= ce
->serial
;
405 case XCB_PRESENT_EVENT_IDLE_NOTIFY
: {
406 xcb_present_idle_notify_event_t
*ie
= (void *) ge
;
409 for (b
= 0; b
< sizeof (priv
->buffers
) / sizeof (priv
->buffers
[0]); b
++) {
410 struct dri3_buffer
*buf
= priv
->buffers
[b
];
412 if (buf
&& buf
->pixmap
== ie
->pixmap
) {
414 if (priv
->num_back
<= b
&& b
< DRI3_MAX_BACK
) {
415 dri3_free_render_buffer(priv
, buf
);
416 priv
->buffers
[b
] = NULL
;
428 dri3_wait_for_event(__GLXDRIdrawable
*pdraw
)
430 xcb_connection_t
*c
= XGetXCBConnection(pdraw
->psc
->dpy
);
431 struct dri3_drawable
*priv
= (struct dri3_drawable
*) pdraw
;
432 xcb_generic_event_t
*ev
;
433 xcb_present_generic_event_t
*ge
;
436 ev
= xcb_wait_for_special_event(c
, priv
->special_event
);
440 dri3_handle_present_event(priv
, ge
);
444 /** dri3_wait_for_msc
446 * Get the X server to send an event when the target msc/divisor/remainder is
450 dri3_wait_for_msc(__GLXDRIdrawable
*pdraw
, int64_t target_msc
, int64_t divisor
,
451 int64_t remainder
, int64_t *ust
, int64_t *msc
, int64_t *sbc
)
453 xcb_connection_t
*c
= XGetXCBConnection(pdraw
->psc
->dpy
);
454 struct dri3_drawable
*priv
= (struct dri3_drawable
*) pdraw
;
457 /* Ask for the an event for the target MSC */
458 msc_serial
= ++priv
->send_msc_serial
;
459 xcb_present_notify_msc(c
,
460 priv
->base
.xDrawable
,
468 /* Wait for the event */
469 if (priv
->special_event
) {
470 while ((int32_t) (msc_serial
- priv
->recv_msc_serial
) > 0) {
471 if (!dri3_wait_for_event(pdraw
))
478 *sbc
= priv
->recv_sbc
;
483 /** dri3_drawable_get_msc
485 * Return the current UST/MSC/SBC triplet by asking the server
489 dri3_drawable_get_msc(struct glx_screen
*psc
, __GLXDRIdrawable
*pdraw
,
490 int64_t *ust
, int64_t *msc
, int64_t *sbc
)
492 return dri3_wait_for_msc(pdraw
, 0, 0, 0, ust
, msc
,sbc
);
495 /** dri3_wait_for_sbc
497 * Wait for the completed swap buffer count to reach the specified
498 * target. Presumably the application knows that this will be reached with
499 * outstanding complete events, or we're going to be here awhile.
502 dri3_wait_for_sbc(__GLXDRIdrawable
*pdraw
, int64_t target_sbc
, int64_t *ust
,
503 int64_t *msc
, int64_t *sbc
)
505 struct dri3_drawable
*priv
= (struct dri3_drawable
*) pdraw
;
507 while (priv
->recv_sbc
< target_sbc
) {
508 if (!dri3_wait_for_event(pdraw
))
514 *sbc
= priv
->recv_sbc
;
519 * Asks the driver to flush any queued work necessary for serializing with the
520 * X command stream, and optionally the slightly more strict requirement of
521 * glFlush() equivalence (which would require flushing even if nothing had
522 * been drawn to a window system framebuffer, for example).
525 dri3_flush(struct dri3_screen
*psc
,
526 struct dri3_drawable
*draw
,
528 enum __DRI2throttleReason throttle_reason
)
530 struct glx_context
*gc
= __glXGetCurrentContext();
533 struct dri3_context
*dri3Ctx
= (struct dri3_context
*)gc
;
535 (*psc
->f
->flush_with_flags
)(dri3Ctx
->driContext
, draw
->driDrawable
, flags
, throttle_reason
);
539 static xcb_gcontext_t
540 dri3_drawable_gc(struct dri3_drawable
*priv
)
544 xcb_connection_t
*c
= XGetXCBConnection(priv
->base
.psc
->dpy
);
548 (priv
->gc
= xcb_generate_id(c
)),
549 priv
->base
.xDrawable
,
550 XCB_GC_GRAPHICS_EXPOSURES
,
556 static struct dri3_buffer
*
557 dri3_back_buffer(struct dri3_drawable
*priv
)
559 return priv
->buffers
[DRI3_BACK_ID(priv
->cur_back
)];
562 static struct dri3_buffer
*
563 dri3_fake_front_buffer(struct dri3_drawable
*priv
)
565 return priv
->buffers
[DRI3_FRONT_ID
];
569 dri3_copy_area (xcb_connection_t
*c
/**< */,
570 xcb_drawable_t src_drawable
/**< */,
571 xcb_drawable_t dst_drawable
/**< */,
572 xcb_gcontext_t gc
/**< */,
573 int16_t src_x
/**< */,
574 int16_t src_y
/**< */,
575 int16_t dst_x
/**< */,
576 int16_t dst_y
/**< */,
577 uint16_t width
/**< */,
578 uint16_t height
/**< */)
580 xcb_void_cookie_t cookie
;
582 cookie
= xcb_copy_area_checked(c
,
592 xcb_discard_reply(c
, cookie
.sequence
);
596 dri3_copy_sub_buffer(__GLXDRIdrawable
*pdraw
, int x
, int y
,
597 int width
, int height
,
600 struct dri3_drawable
*priv
= (struct dri3_drawable
*) pdraw
;
601 struct dri3_screen
*psc
= (struct dri3_screen
*) pdraw
->psc
;
602 struct dri3_context
*pcp
= (struct dri3_context
*) __glXGetCurrentContext();
603 xcb_connection_t
*c
= XGetXCBConnection(priv
->base
.psc
->dpy
);
604 struct dri3_buffer
*back
;
606 unsigned flags
= __DRI2_FLUSH_DRAWABLE
;
608 /* Check we have the right attachments */
609 if (!priv
->have_back
|| priv
->is_pixmap
)
613 flags
|= __DRI2_FLUSH_CONTEXT
;
614 dri3_flush(psc
, priv
, flags
, __DRI2_THROTTLE_SWAPBUFFER
);
616 back
= dri3_back_buffer(priv
);
617 y
= priv
->height
- y
- height
;
619 if (psc
->is_different_gpu
&& (&pcp
->base
!= &dummyContext
) && pcp
->base
.psc
== &psc
->base
) {
620 /* Update the linear buffer part of the back buffer
621 * for the dri3_copy_area operation
623 psc
->image
->blitImage(pcp
->driContext
,
629 back
->height
, __BLIT_FLAG_FLUSH
);
630 /* We use blitImage to update our fake front,
632 if (priv
->have_fake_front
)
633 psc
->image
->blitImage(pcp
->driContext
,
634 dri3_fake_front_buffer(priv
)->image
,
637 x
, y
, width
, height
, __BLIT_FLAG_FLUSH
);
640 dri3_fence_reset(c
, back
);
642 dri3_back_buffer(priv
)->pixmap
,
643 priv
->base
.xDrawable
,
644 dri3_drawable_gc(priv
),
645 x
, y
, x
, y
, width
, height
);
646 dri3_fence_trigger(c
, back
);
647 /* Refresh the fake front (if present) after we just damaged the real
650 if (priv
->have_fake_front
&& !psc
->is_different_gpu
) {
651 dri3_fence_reset(c
, dri3_fake_front_buffer(priv
));
653 dri3_back_buffer(priv
)->pixmap
,
654 dri3_fake_front_buffer(priv
)->pixmap
,
655 dri3_drawable_gc(priv
),
656 x
, y
, x
, y
, width
, height
);
657 dri3_fence_trigger(c
, dri3_fake_front_buffer(priv
));
658 dri3_fence_await(c
, dri3_fake_front_buffer(priv
));
660 dri3_fence_await(c
, back
);
664 dri3_copy_drawable(struct dri3_drawable
*priv
, Drawable dest
, Drawable src
)
666 struct dri3_screen
*psc
= (struct dri3_screen
*) priv
->base
.psc
;
667 xcb_connection_t
*c
= XGetXCBConnection(priv
->base
.psc
->dpy
);
669 dri3_flush(psc
, priv
, __DRI2_FLUSH_DRAWABLE
, 0);
671 dri3_fence_reset(c
, dri3_fake_front_buffer(priv
));
674 dri3_drawable_gc(priv
),
675 0, 0, 0, 0, priv
->width
, priv
->height
);
676 dri3_fence_trigger(c
, dri3_fake_front_buffer(priv
));
677 dri3_fence_await(c
, dri3_fake_front_buffer(priv
));
681 dri3_wait_x(struct glx_context
*gc
)
683 struct dri3_context
*pcp
= (struct dri3_context
*) gc
;
684 struct dri3_drawable
*priv
= (struct dri3_drawable
*)
685 GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
);
686 struct dri3_screen
*psc
;
687 struct dri3_buffer
*front
;
689 if (priv
== NULL
|| !priv
->have_fake_front
)
692 psc
= (struct dri3_screen
*) priv
->base
.psc
;
693 front
= dri3_fake_front_buffer(priv
);
695 dri3_copy_drawable(priv
, front
->pixmap
, priv
->base
.xDrawable
);
697 /* In the psc->is_different_gpu case, the linear buffer has been updated,
698 * but not yet the tiled buffer.
699 * Copy back to the tiled buffer we use for rendering.
700 * Note that we don't need flushing.
702 if (psc
->is_different_gpu
&& (&pcp
->base
!= &dummyContext
) && pcp
->base
.psc
== &psc
->base
)
703 psc
->image
->blitImage(pcp
->driContext
,
705 front
->linear_buffer
,
713 dri3_wait_gl(struct glx_context
*gc
)
715 struct dri3_context
*pcp
= (struct dri3_context
*) gc
;
716 struct dri3_drawable
*priv
= (struct dri3_drawable
*)
717 GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
);
718 struct dri3_screen
*psc
;
719 struct dri3_buffer
*front
;
721 if (priv
== NULL
|| !priv
->have_fake_front
)
724 psc
= (struct dri3_screen
*) priv
->base
.psc
;
725 front
= dri3_fake_front_buffer(priv
);
727 /* In the psc->is_different_gpu case, we update the linear_buffer
728 * before updating the real front.
730 if (psc
->is_different_gpu
&& (&pcp
->base
!= &dummyContext
) && pcp
->base
.psc
== &psc
->base
)
731 psc
->image
->blitImage(pcp
->driContext
,
732 front
->linear_buffer
,
737 front
->height
, __BLIT_FLAG_FLUSH
);
738 dri3_copy_drawable(priv
, priv
->base
.xDrawable
, front
->pixmap
);
742 * Called by the driver when it needs to update the real front buffer with the
743 * contents of its fake front buffer.
746 dri3_flush_front_buffer(__DRIdrawable
*driDrawable
, void *loaderPrivate
)
748 struct glx_context
*gc
;
749 struct dri3_drawable
*pdraw
= loaderPrivate
;
750 struct dri3_screen
*psc
;
755 if (!pdraw
->base
.psc
)
758 psc
= (struct dri3_screen
*) pdraw
->base
.psc
;
760 (void) __glXInitialize(psc
->base
.dpy
);
762 gc
= __glXGetCurrentContext();
764 dri3_flush(psc
, pdraw
, __DRI2_FLUSH_DRAWABLE
, __DRI2_THROTTLE_FLUSHFRONT
);
770 dri3_cpp_for_format(uint32_t format
) {
772 case __DRI_IMAGE_FORMAT_R8
:
774 case __DRI_IMAGE_FORMAT_RGB565
:
775 case __DRI_IMAGE_FORMAT_GR88
:
777 case __DRI_IMAGE_FORMAT_XRGB8888
:
778 case __DRI_IMAGE_FORMAT_ARGB8888
:
779 case __DRI_IMAGE_FORMAT_ABGR8888
:
780 case __DRI_IMAGE_FORMAT_XBGR8888
:
781 case __DRI_IMAGE_FORMAT_XRGB2101010
:
782 case __DRI_IMAGE_FORMAT_ARGB2101010
:
783 case __DRI_IMAGE_FORMAT_SARGB8
:
785 case __DRI_IMAGE_FORMAT_NONE
:
792 /** dri3_alloc_render_buffer
794 * Use the driver createImage function to construct a __DRIimage, then
795 * get a file descriptor for that and create an X pixmap from that
797 * Allocate an xshmfence for synchronization
799 static struct dri3_buffer
*
800 dri3_alloc_render_buffer(struct glx_screen
*glx_screen
, Drawable draw
,
801 unsigned int format
, int width
, int height
, int depth
)
803 struct dri3_screen
*psc
= (struct dri3_screen
*) glx_screen
;
804 Display
*dpy
= glx_screen
->dpy
;
805 struct dri3_buffer
*buffer
;
806 __DRIimage
*pixmap_buffer
;
807 xcb_connection_t
*c
= XGetXCBConnection(dpy
);
809 xcb_sync_fence_t sync_fence
;
810 struct xshmfence
*shm_fence
;
811 int buffer_fd
, fence_fd
;
814 /* Create an xshmfence object and
815 * prepare to send that to the X server
818 fence_fd
= xshmfence_alloc_shm();
821 shm_fence
= xshmfence_map_shm(fence_fd
);
822 if (shm_fence
== NULL
)
825 /* Allocate the image from the driver
827 buffer
= calloc(1, sizeof (struct dri3_buffer
));
831 buffer
->cpp
= dri3_cpp_for_format(format
);
835 if (!psc
->is_different_gpu
) {
836 buffer
->image
= (*psc
->image
->createImage
) (psc
->driScreen
,
839 __DRI_IMAGE_USE_SHARE
|
840 __DRI_IMAGE_USE_SCANOUT
,
842 pixmap_buffer
= buffer
->image
;
847 buffer
->image
= (*psc
->image
->createImage
) (psc
->driScreen
,
856 buffer
->linear_buffer
= (*psc
->image
->createImage
) (psc
->driScreen
,
859 __DRI_IMAGE_USE_SHARE
|
860 __DRI_IMAGE_USE_LINEAR
,
862 pixmap_buffer
= buffer
->linear_buffer
;
864 if (!buffer
->linear_buffer
)
865 goto no_linear_buffer
;
868 /* X wants the stride, so ask the image for it
870 if (!(*psc
->image
->queryImage
)(pixmap_buffer
, __DRI_IMAGE_ATTRIB_STRIDE
, &stride
))
871 goto no_buffer_attrib
;
873 buffer
->pitch
= stride
;
875 if (!(*psc
->image
->queryImage
)(pixmap_buffer
, __DRI_IMAGE_ATTRIB_FD
, &buffer_fd
))
876 goto no_buffer_attrib
;
878 xcb_dri3_pixmap_from_buffer(c
,
879 (pixmap
= xcb_generate_id(c
)),
882 width
, height
, buffer
->pitch
,
883 depth
, buffer
->cpp
* 8,
886 xcb_dri3_fence_from_fd(c
,
888 (sync_fence
= xcb_generate_id(c
)),
892 buffer
->pixmap
= pixmap
;
893 buffer
->own_pixmap
= true;
894 buffer
->sync_fence
= sync_fence
;
895 buffer
->shm_fence
= shm_fence
;
896 buffer
->width
= width
;
897 buffer
->height
= height
;
899 /* Mark the buffer as idle
901 dri3_fence_set(buffer
);
906 (*psc
->image
->destroyImage
)(pixmap_buffer
);
908 if (psc
->is_different_gpu
)
909 (*psc
->image
->destroyImage
)(buffer
->image
);
913 xshmfence_unmap_shm(shm_fence
);
919 /** dri3_free_render_buffer
921 * Free everything associated with one render buffer including pixmap, fence
922 * stuff and the driver image
925 dri3_free_render_buffer(struct dri3_drawable
*pdraw
, struct dri3_buffer
*buffer
)
927 struct dri3_screen
*psc
= (struct dri3_screen
*) pdraw
->base
.psc
;
928 xcb_connection_t
*c
= XGetXCBConnection(pdraw
->base
.psc
->dpy
);
930 if (buffer
->own_pixmap
)
931 xcb_free_pixmap(c
, buffer
->pixmap
);
932 xcb_sync_destroy_fence(c
, buffer
->sync_fence
);
933 xshmfence_unmap_shm(buffer
->shm_fence
);
934 (*psc
->image
->destroyImage
)(buffer
->image
);
935 if (buffer
->linear_buffer
)
936 (*psc
->image
->destroyImage
)(buffer
->linear_buffer
);
941 /** dri3_flush_present_events
943 * Process any present events that have been received from the X server
946 dri3_flush_present_events(struct dri3_drawable
*priv
)
948 xcb_connection_t
*c
= XGetXCBConnection(priv
->base
.psc
->dpy
);
950 /* Check to see if any configuration changes have occurred
951 * since we were last invoked
953 if (priv
->special_event
) {
954 xcb_generic_event_t
*ev
;
956 while ((ev
= xcb_poll_for_special_event(c
, priv
->special_event
)) != NULL
) {
957 xcb_present_generic_event_t
*ge
= (void *) ev
;
958 dri3_handle_present_event(priv
, ge
);
963 /** dri3_update_drawable
965 * Called the first time we use the drawable and then
966 * after we receive present configure notify events to
967 * track the geometry of the drawable
970 dri3_update_drawable(__DRIdrawable
*driDrawable
, void *loaderPrivate
)
972 struct dri3_drawable
*priv
= loaderPrivate
;
973 xcb_connection_t
*c
= XGetXCBConnection(priv
->base
.psc
->dpy
);
975 /* First time through, go get the current drawable geometry
977 if (priv
->width
== 0 || priv
->height
== 0 || priv
->depth
== 0) {
978 xcb_get_geometry_cookie_t geom_cookie
;
979 xcb_get_geometry_reply_t
*geom_reply
;
980 xcb_void_cookie_t cookie
;
981 xcb_generic_error_t
*error
;
982 xcb_present_query_capabilities_cookie_t present_capabilities_cookie
;
983 xcb_present_query_capabilities_reply_t
*present_capabilities_reply
;
986 /* Try to select for input on the window.
988 * If the drawable is a window, this will get our events
991 * Otherwise, we'll get a BadWindow error back from this request which
992 * will let us know that the drawable is a pixmap instead.
996 cookie
= xcb_present_select_input_checked(c
,
997 (priv
->eid
= xcb_generate_id(c
)),
998 priv
->base
.xDrawable
,
999 XCB_PRESENT_EVENT_MASK_CONFIGURE_NOTIFY
|
1000 XCB_PRESENT_EVENT_MASK_COMPLETE_NOTIFY
|
1001 XCB_PRESENT_EVENT_MASK_IDLE_NOTIFY
);
1003 present_capabilities_cookie
= xcb_present_query_capabilities(c
, priv
->base
.xDrawable
);
1005 /* Create an XCB event queue to hold present events outside of the usual
1006 * application event queue
1008 priv
->special_event
= xcb_register_for_special_xge(c
,
1013 geom_cookie
= xcb_get_geometry(c
, priv
->base
.xDrawable
);
1015 geom_reply
= xcb_get_geometry_reply(c
, geom_cookie
, NULL
);
1020 priv
->width
= geom_reply
->width
;
1021 priv
->height
= geom_reply
->height
;
1022 priv
->depth
= geom_reply
->depth
;
1023 priv
->is_pixmap
= false;
1027 /* Check to see if our select input call failed. If it failed with a
1028 * BadWindow error, then assume the drawable is a pixmap. Destroy the
1029 * special event queue created above and mark the drawable as a pixmap
1032 error
= xcb_request_check(c
, cookie
);
1034 present_capabilities_reply
= xcb_present_query_capabilities_reply(c
,
1035 present_capabilities_cookie
,
1038 if (present_capabilities_reply
) {
1039 priv
->present_capabilities
= present_capabilities_reply
->capabilities
;
1040 free(present_capabilities_reply
);
1042 priv
->present_capabilities
= 0;
1045 if (error
->error_code
!= BadWindow
) {
1049 priv
->is_pixmap
= true;
1050 xcb_unregister_for_special_event(c
, priv
->special_event
);
1051 priv
->special_event
= NULL
;
1054 dri3_flush_present_events(priv
);
1058 /* the DRIimage createImage function takes __DRI_IMAGE_FORMAT codes, while
1059 * the createImageFromFds call takes __DRI_IMAGE_FOURCC codes. To avoid
1060 * complete confusion, just deal in __DRI_IMAGE_FORMAT codes for now and
1061 * translate to __DRI_IMAGE_FOURCC codes in the call to createImageFromFds
1064 image_format_to_fourcc(int format
)
1067 /* Convert from __DRI_IMAGE_FORMAT to __DRI_IMAGE_FOURCC (sigh) */
1069 case __DRI_IMAGE_FORMAT_SARGB8
: return __DRI_IMAGE_FOURCC_SARGB8888
;
1070 case __DRI_IMAGE_FORMAT_RGB565
: return __DRI_IMAGE_FOURCC_RGB565
;
1071 case __DRI_IMAGE_FORMAT_XRGB8888
: return __DRI_IMAGE_FOURCC_XRGB8888
;
1072 case __DRI_IMAGE_FORMAT_ARGB8888
: return __DRI_IMAGE_FOURCC_ARGB8888
;
1073 case __DRI_IMAGE_FORMAT_ABGR8888
: return __DRI_IMAGE_FOURCC_ABGR8888
;
1074 case __DRI_IMAGE_FORMAT_XBGR8888
: return __DRI_IMAGE_FOURCC_XBGR8888
;
1079 /** dri3_get_pixmap_buffer
1081 * Get the DRM object for a pixmap from the X server and
1082 * wrap that with a __DRIimage structure using createImageFromFds
1084 static struct dri3_buffer
*
1085 dri3_get_pixmap_buffer(__DRIdrawable
*driDrawable
,
1086 unsigned int format
,
1087 enum dri3_buffer_type buffer_type
,
1088 void *loaderPrivate
)
1090 struct dri3_drawable
*pdraw
= loaderPrivate
;
1091 int buf_id
= dri3_pixmap_buf_id(buffer_type
);
1092 struct dri3_buffer
*buffer
= pdraw
->buffers
[buf_id
];
1094 xcb_dri3_buffer_from_pixmap_cookie_t bp_cookie
;
1095 xcb_dri3_buffer_from_pixmap_reply_t
*bp_reply
;
1098 struct dri3_screen
*psc
;
1099 xcb_connection_t
*c
;
1100 xcb_sync_fence_t sync_fence
;
1101 struct xshmfence
*shm_fence
;
1103 __DRIimage
*image_planar
;
1109 pixmap
= pdraw
->base
.xDrawable
;
1110 psc
= (struct dri3_screen
*) pdraw
->base
.psc
;
1111 dpy
= psc
->base
.dpy
;
1112 c
= XGetXCBConnection(dpy
);
1114 buffer
= calloc(1, sizeof (struct dri3_buffer
));
1118 fence_fd
= xshmfence_alloc_shm();
1121 shm_fence
= xshmfence_map_shm(fence_fd
);
1122 if (shm_fence
== NULL
) {
1127 xcb_dri3_fence_from_fd(c
,
1129 (sync_fence
= xcb_generate_id(c
)),
1133 /* Get an FD for the pixmap object
1135 bp_cookie
= xcb_dri3_buffer_from_pixmap(c
, pixmap
);
1136 bp_reply
= xcb_dri3_buffer_from_pixmap_reply(c
, bp_cookie
, NULL
);
1139 fds
= xcb_dri3_buffer_from_pixmap_reply_fds(c
, bp_reply
);
1141 stride
= bp_reply
->stride
;
1144 /* createImageFromFds creates a wrapper __DRIimage structure which
1145 * can deal with multiple planes for things like Yuv images. So, once
1146 * we've gotten the planar wrapper, pull the single plane out of it and
1147 * discard the wrapper.
1149 image_planar
= (*psc
->image
->createImageFromFds
) (psc
->driScreen
,
1152 image_format_to_fourcc(format
),
1154 &stride
, &offset
, buffer
);
1159 buffer
->image
= (*psc
->image
->fromPlanar
)(image_planar
, 0, buffer
);
1161 (*psc
->image
->destroyImage
)(image_planar
);
1166 buffer
->pixmap
= pixmap
;
1167 buffer
->own_pixmap
= false;
1168 buffer
->width
= bp_reply
->width
;
1169 buffer
->height
= bp_reply
->height
;
1170 buffer
->buffer_type
= buffer_type
;
1171 buffer
->shm_fence
= shm_fence
;
1172 buffer
->sync_fence
= sync_fence
;
1174 pdraw
->buffers
[buf_id
] = buffer
;
1178 xcb_sync_destroy_fence(c
, sync_fence
);
1179 xshmfence_unmap_shm(shm_fence
);
1188 * Find an idle back buffer. If there isn't one, then
1189 * wait for a present idle notify event from the X server
1192 dri3_find_back(xcb_connection_t
*c
, struct dri3_drawable
*priv
)
1195 xcb_generic_event_t
*ev
;
1196 xcb_present_generic_event_t
*ge
;
1199 for (b
= 0; b
< priv
->num_back
; b
++) {
1200 int id
= DRI3_BACK_ID((b
+ priv
->cur_back
) % priv
->num_back
);
1201 struct dri3_buffer
*buffer
= priv
->buffers
[id
];
1203 if (!buffer
|| !buffer
->busy
) {
1204 priv
->cur_back
= id
;
1209 ev
= xcb_wait_for_special_event(c
, priv
->special_event
);
1213 dri3_handle_present_event(priv
, ge
);
1219 * Find a front or back buffer, allocating new ones as necessary
1221 static struct dri3_buffer
*
1222 dri3_get_buffer(__DRIdrawable
*driDrawable
,
1223 unsigned int format
,
1224 enum dri3_buffer_type buffer_type
,
1225 void *loaderPrivate
)
1227 struct dri3_context
*pcp
= (struct dri3_context
*) __glXGetCurrentContext();
1228 struct dri3_drawable
*priv
= loaderPrivate
;
1229 struct dri3_screen
*psc
= (struct dri3_screen
*) priv
->base
.psc
;
1230 xcb_connection_t
*c
= XGetXCBConnection(priv
->base
.psc
->dpy
);
1231 struct dri3_buffer
*buffer
;
1234 if (buffer_type
== dri3_buffer_back
) {
1235 buf_id
= dri3_find_back(c
, priv
);
1240 buf_id
= DRI3_FRONT_ID
;
1243 buffer
= priv
->buffers
[buf_id
];
1245 /* Allocate a new buffer if there isn't an old one, or if that
1246 * old one is the wrong size
1248 if (!buffer
|| buffer
->width
!= priv
->width
|| buffer
->height
!= priv
->height
) {
1249 struct dri3_buffer
*new_buffer
;
1251 /* Allocate the new buffers
1253 new_buffer
= dri3_alloc_render_buffer(priv
->base
.psc
,
1254 priv
->base
.xDrawable
,
1255 format
, priv
->width
, priv
->height
, priv
->depth
);
1259 /* When resizing, copy the contents of the old buffer, waiting for that
1260 * copy to complete using our fences before proceeding
1262 switch (buffer_type
) {
1263 case dri3_buffer_back
:
1265 if (!buffer
->linear_buffer
) {
1266 dri3_fence_reset(c
, new_buffer
);
1267 dri3_fence_await(c
, buffer
);
1271 dri3_drawable_gc(priv
),
1272 0, 0, 0, 0, priv
->width
, priv
->height
);
1273 dri3_fence_trigger(c
, new_buffer
);
1274 } else if ((&pcp
->base
!= &dummyContext
) && pcp
->base
.psc
== &psc
->base
) {
1275 psc
->image
->blitImage(pcp
->driContext
,
1283 dri3_free_render_buffer(priv
, buffer
);
1286 case dri3_buffer_front
:
1287 dri3_fence_reset(c
, new_buffer
);
1289 priv
->base
.xDrawable
,
1291 dri3_drawable_gc(priv
),
1292 0, 0, 0, 0, priv
->width
, priv
->height
);
1293 dri3_fence_trigger(c
, new_buffer
);
1295 if (new_buffer
->linear_buffer
&& (&pcp
->base
!= &dummyContext
) && pcp
->base
.psc
== &psc
->base
) {
1296 dri3_fence_await(c
, new_buffer
);
1297 psc
->image
->blitImage(pcp
->driContext
,
1299 new_buffer
->linear_buffer
,
1307 buffer
= new_buffer
;
1308 buffer
->buffer_type
= buffer_type
;
1309 priv
->buffers
[buf_id
] = buffer
;
1311 dri3_fence_await(c
, buffer
);
1313 /* Return the requested buffer */
1317 /** dri3_free_buffers
1319 * Free the front bufffer or all of the back buffers. Used
1320 * when the application changes which buffers it needs
1323 dri3_free_buffers(__DRIdrawable
*driDrawable
,
1324 enum dri3_buffer_type buffer_type
,
1325 void *loaderPrivate
)
1327 struct dri3_drawable
*priv
= loaderPrivate
;
1328 struct dri3_buffer
*buffer
;
1333 switch (buffer_type
) {
1334 case dri3_buffer_back
:
1335 first_id
= DRI3_BACK_ID(0);
1336 n_id
= DRI3_MAX_BACK
;
1338 case dri3_buffer_front
:
1339 first_id
= DRI3_FRONT_ID
;
1343 for (buf_id
= first_id
; buf_id
< first_id
+ n_id
; buf_id
++) {
1344 buffer
= priv
->buffers
[buf_id
];
1346 dri3_free_render_buffer(priv
, buffer
);
1347 priv
->buffers
[buf_id
] = NULL
;
1352 /** dri3_get_buffers
1354 * The published buffer allocation API.
1355 * Returns all of the necessary buffers, allocating
1359 dri3_get_buffers(__DRIdrawable
*driDrawable
,
1360 unsigned int format
,
1362 void *loaderPrivate
,
1363 uint32_t buffer_mask
,
1364 struct __DRIimageList
*buffers
)
1366 struct dri3_drawable
*priv
= loaderPrivate
;
1367 struct dri3_screen
*psc
= (struct dri3_screen
*) priv
->base
.psc
;
1368 struct dri3_buffer
*front
, *back
;
1370 buffers
->image_mask
= 0;
1371 buffers
->front
= NULL
;
1372 buffers
->back
= NULL
;
1377 if (!dri3_update_drawable(driDrawable
, loaderPrivate
))
1380 /* pixmaps always have front buffers */
1381 if (priv
->is_pixmap
)
1382 buffer_mask
|= __DRI_IMAGE_BUFFER_FRONT
;
1384 if (buffer_mask
& __DRI_IMAGE_BUFFER_FRONT
) {
1385 /* All pixmaps are owned by the server gpu.
1386 * When we use a different gpu, we can't use the pixmap
1387 * as buffer since it is potentially tiled a way
1388 * our device can't understand. In this case, use
1389 * a fake front buffer. Hopefully the pixmap
1390 * content will get synced with the fake front
1393 if (priv
->is_pixmap
&& !psc
->is_different_gpu
)
1394 front
= dri3_get_pixmap_buffer(driDrawable
,
1399 front
= dri3_get_buffer(driDrawable
,
1407 dri3_free_buffers(driDrawable
, dri3_buffer_front
, loaderPrivate
);
1408 priv
->have_fake_front
= 0;
1411 if (buffer_mask
& __DRI_IMAGE_BUFFER_BACK
) {
1412 back
= dri3_get_buffer(driDrawable
,
1418 priv
->have_back
= 1;
1420 dri3_free_buffers(driDrawable
, dri3_buffer_back
, loaderPrivate
);
1421 priv
->have_back
= 0;
1425 buffers
->image_mask
|= __DRI_IMAGE_BUFFER_FRONT
;
1426 buffers
->front
= front
->image
;
1427 priv
->have_fake_front
= psc
->is_different_gpu
|| !priv
->is_pixmap
;
1431 buffers
->image_mask
|= __DRI_IMAGE_BUFFER_BACK
;
1432 buffers
->back
= back
->image
;
1435 priv
->stamp
= stamp
;
1440 /* The image loader extension record for DRI3
1442 static const __DRIimageLoaderExtension imageLoaderExtension
= {
1443 .base
= { __DRI_IMAGE_LOADER
, 1 },
1445 .getBuffers
= dri3_get_buffers
,
1446 .flushFrontBuffer
= dri3_flush_front_buffer
,
1449 const __DRIuseInvalidateExtension dri3UseInvalidate
= {
1450 .base
= { __DRI_USE_INVALIDATE
, 1 }
1453 static const __DRIextension
*loader_extensions
[] = {
1454 &imageLoaderExtension
.base
,
1455 &systemTimeExtension
.base
,
1456 &dri3UseInvalidate
.base
,
1460 /** dri3_swap_buffers
1462 * Make the current back buffer visible using the present extension
1465 dri3_swap_buffers(__GLXDRIdrawable
*pdraw
, int64_t target_msc
, int64_t divisor
,
1466 int64_t remainder
, Bool flush
)
1468 struct dri3_context
*pcp
= (struct dri3_context
*) __glXGetCurrentContext();
1469 struct dri3_drawable
*priv
= (struct dri3_drawable
*) pdraw
;
1470 struct dri3_screen
*psc
= (struct dri3_screen
*) priv
->base
.psc
;
1471 Display
*dpy
= priv
->base
.psc
->dpy
;
1472 xcb_connection_t
*c
= XGetXCBConnection(dpy
);
1473 struct dri3_buffer
*back
;
1476 unsigned flags
= __DRI2_FLUSH_DRAWABLE
;
1478 flags
|= __DRI2_FLUSH_CONTEXT
;
1479 dri3_flush(psc
, priv
, flags
, __DRI2_THROTTLE_SWAPBUFFER
);
1481 back
= priv
->buffers
[DRI3_BACK_ID(priv
->cur_back
)];
1482 if (psc
->is_different_gpu
&& back
) {
1483 /* Update the linear buffer before presenting the pixmap */
1484 psc
->image
->blitImage(pcp
->driContext
,
1485 back
->linear_buffer
,
1490 back
->height
, __BLIT_FLAG_FLUSH
);
1491 /* Update the fake front */
1492 if (priv
->have_fake_front
)
1493 psc
->image
->blitImage(pcp
->driContext
,
1494 priv
->buffers
[DRI3_FRONT_ID
]->image
,
1499 priv
->height
, __BLIT_FLAG_FLUSH
);
1502 dri3_flush_present_events(priv
);
1504 if (back
&& !priv
->is_pixmap
) {
1505 dri3_fence_reset(c
, back
);
1507 /* Compute when we want the frame shown by taking the last known successful
1508 * MSC and adding in a swap interval for each outstanding swap request
1511 if (target_msc
== 0)
1512 target_msc
= priv
->msc
+ priv
->swap_interval
* (priv
->send_sbc
- priv
->recv_sbc
);
1515 back
->last_swap
= priv
->send_sbc
;
1516 xcb_present_pixmap(c
,
1517 priv
->base
.xDrawable
,
1519 (uint32_t) priv
->send_sbc
,
1524 None
, /* target_crtc */
1527 XCB_PRESENT_OPTION_NONE
,
1530 remainder
, 0, NULL
);
1531 ret
= (int64_t) priv
->send_sbc
;
1533 /* If there's a fake front, then copy the source back buffer
1534 * to the fake front to keep it up to date. This needs
1535 * to reset the fence and make future users block until
1536 * the X server is done copying the bits
1538 if (priv
->have_fake_front
&& !psc
->is_different_gpu
) {
1539 dri3_fence_reset(c
, priv
->buffers
[DRI3_FRONT_ID
]);
1542 priv
->buffers
[DRI3_FRONT_ID
]->pixmap
,
1543 dri3_drawable_gc(priv
),
1544 0, 0, 0, 0, priv
->width
, priv
->height
);
1545 dri3_fence_trigger(c
, priv
->buffers
[DRI3_FRONT_ID
]);
1552 (*psc
->f
->invalidate
)(priv
->driDrawable
);
1558 dri3_get_buffer_age(__GLXDRIdrawable
*pdraw
)
1560 xcb_connection_t
*c
= XGetXCBConnection(pdraw
->psc
->dpy
);
1561 struct dri3_drawable
*priv
= (struct dri3_drawable
*) pdraw
;
1562 int back_id
= DRI3_BACK_ID(dri3_find_back(c
, priv
));
1564 if (back_id
< 0 || !priv
->buffers
[back_id
])
1567 if (priv
->buffers
[back_id
]->last_swap
!= 0)
1568 return priv
->send_sbc
- priv
->buffers
[back_id
]->last_swap
+ 1;
1575 * Wrapper around xcb_dri3_open
1578 dri3_open(Display
*dpy
,
1582 xcb_dri3_open_cookie_t cookie
;
1583 xcb_dri3_open_reply_t
*reply
;
1584 xcb_connection_t
*c
= XGetXCBConnection(dpy
);
1587 cookie
= xcb_dri3_open(c
,
1591 reply
= xcb_dri3_open_reply(c
, cookie
, NULL
);
1595 if (reply
->nfd
!= 1) {
1600 fd
= xcb_dri3_open_reply_fds(c
, reply
)[0];
1601 fcntl(fd
, F_SETFD
, FD_CLOEXEC
);
1607 /** dri3_destroy_screen
1610 dri3_destroy_screen(struct glx_screen
*base
)
1612 struct dri3_screen
*psc
= (struct dri3_screen
*) base
;
1614 /* Free the direct rendering per screen data */
1615 (*psc
->core
->destroyScreen
) (psc
->driScreen
);
1616 driDestroyConfigs(psc
->driver_configs
);
1621 /** dri3_set_swap_interval
1623 * Record the application swap interval specification,
1626 dri3_set_swap_interval(__GLXDRIdrawable
*pdraw
, int interval
)
1628 struct dri3_drawable
*priv
= (struct dri3_drawable
*) pdraw
;
1629 GLint vblank_mode
= DRI_CONF_VBLANK_DEF_INTERVAL_1
;
1630 struct dri3_screen
*psc
= (struct dri3_screen
*) priv
->base
.psc
;
1633 psc
->config
->configQueryi(psc
->driScreen
,
1634 "vblank_mode", &vblank_mode
);
1636 switch (vblank_mode
) {
1637 case DRI_CONF_VBLANK_NEVER
:
1639 return GLX_BAD_VALUE
;
1641 case DRI_CONF_VBLANK_ALWAYS_SYNC
:
1643 return GLX_BAD_VALUE
;
1649 priv
->swap_interval
= interval
;
1650 dri3_update_num_back(priv
);
1655 /** dri3_get_swap_interval
1657 * Return the stored swap interval
1660 dri3_get_swap_interval(__GLXDRIdrawable
*pdraw
)
1662 struct dri3_drawable
*priv
= (struct dri3_drawable
*) pdraw
;
1664 return priv
->swap_interval
;
1668 dri3_bind_tex_image(Display
* dpy
,
1669 GLXDrawable drawable
,
1670 int buffer
, const int *attrib_list
)
1672 struct glx_context
*gc
= __glXGetCurrentContext();
1673 struct dri3_context
*pcp
= (struct dri3_context
*) gc
;
1674 __GLXDRIdrawable
*base
= GetGLXDRIDrawable(dpy
, drawable
);
1675 struct dri3_drawable
*pdraw
= (struct dri3_drawable
*) base
;
1676 struct dri3_screen
*psc
;
1678 if (pdraw
!= NULL
) {
1679 psc
= (struct dri3_screen
*) base
->psc
;
1681 (*psc
->f
->invalidate
)(pdraw
->driDrawable
);
1685 (*psc
->texBuffer
->setTexBuffer2
) (pcp
->driContext
,
1686 pdraw
->base
.textureTarget
,
1687 pdraw
->base
.textureFormat
,
1688 pdraw
->driDrawable
);
1693 dri3_release_tex_image(Display
* dpy
, GLXDrawable drawable
, int buffer
)
1695 struct glx_context
*gc
= __glXGetCurrentContext();
1696 struct dri3_context
*pcp
= (struct dri3_context
*) gc
;
1697 __GLXDRIdrawable
*base
= GetGLXDRIDrawable(dpy
, drawable
);
1698 struct dri3_drawable
*pdraw
= (struct dri3_drawable
*) base
;
1699 struct dri3_screen
*psc
;
1701 if (pdraw
!= NULL
) {
1702 psc
= (struct dri3_screen
*) base
->psc
;
1704 if (psc
->texBuffer
->base
.version
>= 3 &&
1705 psc
->texBuffer
->releaseTexBuffer
!= NULL
)
1706 (*psc
->texBuffer
->releaseTexBuffer
) (pcp
->driContext
,
1707 pdraw
->base
.textureTarget
,
1708 pdraw
->driDrawable
);
1712 static const struct glx_context_vtable dri3_context_vtable
= {
1713 .destroy
= dri3_destroy_context
,
1714 .bind
= dri3_bind_context
,
1715 .unbind
= dri3_unbind_context
,
1716 .wait_gl
= dri3_wait_gl
,
1717 .wait_x
= dri3_wait_x
,
1718 .use_x_font
= DRI_glXUseXFont
,
1719 .bind_tex_image
= dri3_bind_tex_image
,
1720 .release_tex_image
= dri3_release_tex_image
,
1721 .get_proc_address
= NULL
,
1724 /** dri3_bind_extensions
1726 * Enable all of the extensions supported on DRI3
1729 dri3_bind_extensions(struct dri3_screen
*psc
, struct glx_display
* priv
,
1730 const char *driverName
)
1732 const __DRIextension
**extensions
;
1736 extensions
= psc
->core
->getExtensions(psc
->driScreen
);
1738 __glXEnableDirectExtension(&psc
->base
, "GLX_SGI_video_sync");
1739 __glXEnableDirectExtension(&psc
->base
, "GLX_SGI_swap_control");
1740 __glXEnableDirectExtension(&psc
->base
, "GLX_MESA_swap_control");
1741 __glXEnableDirectExtension(&psc
->base
, "GLX_SGI_make_current_read");
1742 __glXEnableDirectExtension(&psc
->base
, "GLX_INTEL_swap_event");
1744 mask
= psc
->image_driver
->getAPIMask(psc
->driScreen
);
1746 __glXEnableDirectExtension(&psc
->base
, "GLX_ARB_create_context");
1747 __glXEnableDirectExtension(&psc
->base
, "GLX_ARB_create_context_profile");
1749 if ((mask
& (1 << __DRI_API_GLES2
)) != 0)
1750 __glXEnableDirectExtension(&psc
->base
,
1751 "GLX_EXT_create_context_es2_profile");
1753 for (i
= 0; extensions
[i
]; i
++) {
1754 /* when on a different gpu than the server, the server pixmaps
1755 * can have a tiling mode we can't read. Thus we can't create
1756 * a texture from them.
1758 if (!psc
->is_different_gpu
&&
1759 (strcmp(extensions
[i
]->name
, __DRI_TEX_BUFFER
) == 0)) {
1760 psc
->texBuffer
= (__DRItexBufferExtension
*) extensions
[i
];
1761 __glXEnableDirectExtension(&psc
->base
, "GLX_EXT_texture_from_pixmap");
1764 if ((strcmp(extensions
[i
]->name
, __DRI2_FLUSH
) == 0)) {
1765 psc
->f
= (__DRI2flushExtension
*) extensions
[i
];
1766 /* internal driver extension, no GL extension exposed */
1769 if (strcmp(extensions
[i
]->name
, __DRI_IMAGE
) == 0)
1770 psc
->image
= (__DRIimageExtension
*) extensions
[i
];
1772 if ((strcmp(extensions
[i
]->name
, __DRI2_CONFIG_QUERY
) == 0))
1773 psc
->config
= (__DRI2configQueryExtension
*) extensions
[i
];
1775 if (strcmp(extensions
[i
]->name
, __DRI2_ROBUSTNESS
) == 0)
1776 __glXEnableDirectExtension(&psc
->base
,
1777 "GLX_ARB_create_context_robustness");
1779 if (strcmp(extensions
[i
]->name
, __DRI2_RENDERER_QUERY
) == 0) {
1780 psc
->rendererQuery
= (__DRI2rendererQueryExtension
*) extensions
[i
];
1781 __glXEnableDirectExtension(&psc
->base
, "GLX_MESA_query_renderer");
1786 static const struct glx_screen_vtable dri3_screen_vtable
= {
1787 .create_context
= dri3_create_context
,
1788 .create_context_attribs
= dri3_create_context_attribs
,
1789 .query_renderer_integer
= dri3_query_renderer_integer
,
1790 .query_renderer_string
= dri3_query_renderer_string
,
1793 /** dri3_create_screen
1795 * Initialize DRI3 on the specified screen.
1797 * Opens the DRI device, locates the appropriate DRI driver
1800 * Checks to see if the driver supports the necessary extensions
1802 * Initializes the driver for the screen and sets up our structures
1805 static struct glx_screen
*
1806 dri3_create_screen(int screen
, struct glx_display
* priv
)
1808 xcb_connection_t
*c
= XGetXCBConnection(priv
->dpy
);
1809 const __DRIconfig
**driver_configs
;
1810 const __DRIextension
**extensions
;
1811 const struct dri3_display
*const pdp
= (struct dri3_display
*)
1813 struct dri3_screen
*psc
;
1814 __GLXDRIscreen
*psp
;
1815 struct glx_config
*configs
= NULL
, *visuals
= NULL
;
1816 char *driverName
, *deviceName
;
1819 psc
= calloc(1, sizeof *psc
);
1825 if (!glx_screen_init(&psc
->base
, screen
, priv
)) {
1830 psc
->fd
= dri3_open(priv
->dpy
, RootWindow(priv
->dpy
, screen
), None
);
1832 int conn_error
= xcb_connection_has_error(c
);
1834 glx_screen_cleanup(&psc
->base
);
1836 InfoMessageF("screen %d does not appear to be DRI3 capable\n", screen
);
1839 ErrorMessageF("Connection closed during DRI3 initialization failure");
1844 psc
->fd
= loader_get_user_preferred_fd(psc
->fd
, &psc
->is_different_gpu
);
1847 driverName
= loader_get_driver_for_fd(psc
->fd
, 0);
1849 ErrorMessageF("No driver found\n");
1853 psc
->driver
= driOpenDriver(driverName
);
1854 if (psc
->driver
== NULL
) {
1855 ErrorMessageF("driver pointer missing\n");
1859 extensions
= driGetDriverExtensions(psc
->driver
, driverName
);
1860 if (extensions
== NULL
)
1863 for (i
= 0; extensions
[i
]; i
++) {
1864 if (strcmp(extensions
[i
]->name
, __DRI_CORE
) == 0)
1865 psc
->core
= (__DRIcoreExtension
*) extensions
[i
];
1866 if (strcmp(extensions
[i
]->name
, __DRI_IMAGE_DRIVER
) == 0)
1867 psc
->image_driver
= (__DRIimageDriverExtension
*) extensions
[i
];
1871 if (psc
->core
== NULL
) {
1872 ErrorMessageF("core dri driver extension not found\n");
1876 if (psc
->image_driver
== NULL
) {
1877 ErrorMessageF("image driver extension not found\n");
1882 psc
->image_driver
->createNewScreen2(screen
, psc
->fd
,
1883 pdp
->loader_extensions
,
1885 &driver_configs
, psc
);
1887 if (psc
->driScreen
== NULL
) {
1888 ErrorMessageF("failed to create dri screen\n");
1892 dri3_bind_extensions(psc
, priv
, driverName
);
1894 if (!psc
->image
|| psc
->image
->base
.version
< 7 || !psc
->image
->createImageFromFds
) {
1895 ErrorMessageF("Version 7 or imageFromFds image extension not found\n");
1899 if (!psc
->f
|| psc
->f
->base
.version
< 4) {
1900 ErrorMessageF("Version 4 or later of flush extension not found\n");
1904 if (psc
->is_different_gpu
&& psc
->image
->base
.version
< 9) {
1905 ErrorMessageF("Different GPU, but image extension version 9 or later not found\n");
1909 if (!psc
->is_different_gpu
&& (
1910 !psc
->texBuffer
|| psc
->texBuffer
->base
.version
< 2 ||
1911 !psc
->texBuffer
->setTexBuffer2
1913 ErrorMessageF("Version 2 or later of texBuffer extension not found\n");
1917 configs
= driConvertConfigs(psc
->core
, psc
->base
.configs
, driver_configs
);
1918 visuals
= driConvertConfigs(psc
->core
, psc
->base
.visuals
, driver_configs
);
1920 if (!configs
|| !visuals
) {
1921 ErrorMessageF("No matching fbConfigs or visuals found\n");
1925 glx_config_destroy_list(psc
->base
.configs
);
1926 psc
->base
.configs
= configs
;
1927 glx_config_destroy_list(psc
->base
.visuals
);
1928 psc
->base
.visuals
= visuals
;
1930 psc
->driver_configs
= driver_configs
;
1932 psc
->base
.vtable
= &dri3_screen_vtable
;
1934 psc
->base
.driScreen
= psp
;
1935 psp
->destroyScreen
= dri3_destroy_screen
;
1936 psp
->createDrawable
= dri3_create_drawable
;
1937 psp
->swapBuffers
= dri3_swap_buffers
;
1939 psp
->getDrawableMSC
= dri3_drawable_get_msc
;
1940 psp
->waitForMSC
= dri3_wait_for_msc
;
1941 psp
->waitForSBC
= dri3_wait_for_sbc
;
1942 psp
->setSwapInterval
= dri3_set_swap_interval
;
1943 psp
->getSwapInterval
= dri3_get_swap_interval
;
1944 __glXEnableDirectExtension(&psc
->base
, "GLX_OML_sync_control");
1946 psp
->copySubBuffer
= dri3_copy_sub_buffer
;
1947 __glXEnableDirectExtension(&psc
->base
, "GLX_MESA_copy_sub_buffer");
1949 psp
->getBufferAge
= dri3_get_buffer_age
;
1950 __glXEnableDirectExtension(&psc
->base
, "GLX_EXT_buffer_age");
1958 CriticalErrorMessageF("failed to load driver: %s\n", driverName
);
1961 glx_config_destroy_list(configs
);
1963 glx_config_destroy_list(visuals
);
1965 psc
->core
->destroyScreen(psc
->driScreen
);
1966 psc
->driScreen
= NULL
;
1970 dlclose(psc
->driver
);
1974 glx_screen_cleanup(&psc
->base
);
1980 /** dri_destroy_display
1982 * Called from __glXFreeDisplayPrivate.
1985 dri3_destroy_display(__GLXDRIdisplay
* dpy
)
1990 /** dri3_create_display
1992 * Allocate, initialize and return a __DRIdisplayPrivate object.
1993 * This is called from __glXInitialize() when we are given a new
1994 * display pointer. This is public to that function, but hidden from
1997 _X_HIDDEN __GLXDRIdisplay
*
1998 dri3_create_display(Display
* dpy
)
2000 struct dri3_display
*pdp
;
2001 xcb_connection_t
*c
= XGetXCBConnection(dpy
);
2002 xcb_dri3_query_version_cookie_t dri3_cookie
;
2003 xcb_dri3_query_version_reply_t
*dri3_reply
;
2004 xcb_present_query_version_cookie_t present_cookie
;
2005 xcb_present_query_version_reply_t
*present_reply
;
2006 xcb_generic_error_t
*error
;
2007 const xcb_query_extension_reply_t
*extension
;
2009 xcb_prefetch_extension_data(c
, &xcb_dri3_id
);
2010 xcb_prefetch_extension_data(c
, &xcb_present_id
);
2012 extension
= xcb_get_extension_data(c
, &xcb_dri3_id
);
2013 if (!(extension
&& extension
->present
))
2016 extension
= xcb_get_extension_data(c
, &xcb_present_id
);
2017 if (!(extension
&& extension
->present
))
2020 dri3_cookie
= xcb_dri3_query_version(c
,
2021 XCB_DRI3_MAJOR_VERSION
,
2022 XCB_DRI3_MINOR_VERSION
);
2025 present_cookie
= xcb_present_query_version(c
,
2026 XCB_PRESENT_MAJOR_VERSION
,
2027 XCB_PRESENT_MINOR_VERSION
);
2029 pdp
= malloc(sizeof *pdp
);
2033 dri3_reply
= xcb_dri3_query_version_reply(c
, dri3_cookie
, &error
);
2039 pdp
->dri3Major
= dri3_reply
->major_version
;
2040 pdp
->dri3Minor
= dri3_reply
->minor_version
;
2043 present_reply
= xcb_present_query_version_reply(c
, present_cookie
, &error
);
2044 if (!present_reply
) {
2048 pdp
->presentMajor
= present_reply
->major_version
;
2049 pdp
->presentMinor
= present_reply
->minor_version
;
2050 free(present_reply
);
2052 pdp
->base
.destroyDisplay
= dri3_destroy_display
;
2053 pdp
->base
.createScreen
= dri3_create_screen
;
2055 loader_set_logger(dri_message
);
2057 pdp
->loader_extensions
= loader_extensions
;
2065 #endif /* GLX_DIRECT_RENDERING */