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>
69 #include "glxclient.h"
74 #include <sys/types.h>
79 #include "dri_common.h"
80 #include "dri3_priv.h"
83 static const struct glx_context_vtable dri3_context_vtable
;
86 dri3_fence_reset(xcb_connection_t
*c
, struct dri3_buffer
*buffer
)
88 xshmfence_reset(buffer
->shm_fence
);
92 dri3_fence_set(struct dri3_buffer
*buffer
)
94 xshmfence_trigger(buffer
->shm_fence
);
98 dri3_fence_trigger(xcb_connection_t
*c
, struct dri3_buffer
*buffer
)
100 xcb_sync_trigger_fence(c
, buffer
->sync_fence
);
104 dri3_fence_await(xcb_connection_t
*c
, struct dri3_buffer
*buffer
)
107 xshmfence_await(buffer
->shm_fence
);
111 dri3_fence_triggered(struct dri3_buffer
*buffer
)
113 return xshmfence_query(buffer
->shm_fence
);
117 dri3_destroy_context(struct glx_context
*context
)
119 struct dri3_context
*pcp
= (struct dri3_context
*) context
;
120 struct dri3_screen
*psc
= (struct dri3_screen
*) context
->psc
;
122 driReleaseDrawables(&pcp
->base
);
124 free((char *) context
->extensions
);
126 (*psc
->core
->destroyContext
) (pcp
->driContext
);
132 dri3_bind_context(struct glx_context
*context
, struct glx_context
*old
,
133 GLXDrawable draw
, GLXDrawable read
)
135 struct dri3_context
*pcp
= (struct dri3_context
*) context
;
136 struct dri3_screen
*psc
= (struct dri3_screen
*) pcp
->base
.psc
;
137 struct dri3_drawable
*pdraw
, *pread
;
139 pdraw
= (struct dri3_drawable
*) driFetchDrawable(context
, draw
);
140 pread
= (struct dri3_drawable
*) driFetchDrawable(context
, read
);
142 driReleaseDrawables(&pcp
->base
);
144 if (pdraw
== NULL
|| pread
== NULL
)
145 return GLXBadDrawable
;
147 if (!(*psc
->core
->bindContext
) (pcp
->driContext
,
148 pdraw
->driDrawable
, pread
->driDrawable
))
149 return GLXBadContext
;
155 dri3_unbind_context(struct glx_context
*context
, struct glx_context
*new)
157 struct dri3_context
*pcp
= (struct dri3_context
*) context
;
158 struct dri3_screen
*psc
= (struct dri3_screen
*) pcp
->base
.psc
;
160 (*psc
->core
->unbindContext
) (pcp
->driContext
);
163 static struct glx_context
*
164 dri3_create_context_attribs(struct glx_screen
*base
,
165 struct glx_config
*config_base
,
166 struct glx_context
*shareList
,
167 unsigned num_attribs
,
168 const uint32_t *attribs
,
171 struct dri3_context
*pcp
= NULL
;
172 struct dri3_context
*pcp_shared
= NULL
;
173 struct dri3_screen
*psc
= (struct dri3_screen
*) base
;
174 __GLXDRIconfigPrivate
*config
= (__GLXDRIconfigPrivate
*) config_base
;
175 __DRIcontext
*shared
= NULL
;
177 uint32_t minor_ver
= 1;
178 uint32_t major_ver
= 2;
181 int reset
= __DRI_CTX_RESET_NO_NOTIFICATION
;
182 uint32_t ctx_attribs
[2 * 5];
183 unsigned num_ctx_attribs
= 0;
184 uint32_t render_type
;
186 /* Remap the GLX tokens to DRI2 tokens.
188 if (!dri2_convert_glx_attribs(num_attribs
, attribs
,
189 &major_ver
, &minor_ver
,
190 &render_type
, &flags
, &api
,
194 /* Check the renderType value */
195 if (!validate_renderType_against_config(config_base
, render_type
))
199 pcp_shared
= (struct dri3_context
*) shareList
;
200 shared
= pcp_shared
->driContext
;
203 pcp
= calloc(1, sizeof *pcp
);
205 *error
= __DRI_CTX_ERROR_NO_MEMORY
;
209 if (!glx_context_init(&pcp
->base
, &psc
->base
, &config
->base
))
212 ctx_attribs
[num_ctx_attribs
++] = __DRI_CTX_ATTRIB_MAJOR_VERSION
;
213 ctx_attribs
[num_ctx_attribs
++] = major_ver
;
214 ctx_attribs
[num_ctx_attribs
++] = __DRI_CTX_ATTRIB_MINOR_VERSION
;
215 ctx_attribs
[num_ctx_attribs
++] = minor_ver
;
217 /* Only send a value when the non-default value is requested. By doing
218 * this we don't have to check the driver's DRI3 version before sending the
221 if (reset
!= __DRI_CTX_RESET_NO_NOTIFICATION
) {
222 ctx_attribs
[num_ctx_attribs
++] = __DRI_CTX_ATTRIB_RESET_STRATEGY
;
223 ctx_attribs
[num_ctx_attribs
++] = reset
;
227 ctx_attribs
[num_ctx_attribs
++] = __DRI_CTX_ATTRIB_FLAGS
;
229 /* The current __DRI_CTX_FLAG_* values are identical to the
230 * GLX_CONTEXT_*_BIT values.
232 ctx_attribs
[num_ctx_attribs
++] = flags
;
236 (*psc
->image_driver
->createContextAttribs
) (psc
->driScreen
,
245 if (pcp
->driContext
== NULL
)
248 pcp
->base
.vtable
= &dri3_context_vtable
;
258 static struct glx_context
*
259 dri3_create_context(struct glx_screen
*base
,
260 struct glx_config
*config_base
,
261 struct glx_context
*shareList
, int renderType
)
265 return dri3_create_context_attribs(base
, config_base
, shareList
,
270 dri3_free_render_buffer(struct dri3_drawable
*pdraw
, struct dri3_buffer
*buffer
);
273 dri3_update_num_back(struct dri3_drawable
*priv
)
278 if (priv
->swap_interval
== 0)
283 dri3_destroy_drawable(__GLXDRIdrawable
*base
)
285 struct dri3_screen
*psc
= (struct dri3_screen
*) base
->psc
;
286 struct dri3_drawable
*pdraw
= (struct dri3_drawable
*) base
;
287 xcb_connection_t
*c
= XGetXCBConnection(pdraw
->base
.psc
->dpy
);
290 (*psc
->core
->destroyDrawable
) (pdraw
->driDrawable
);
292 for (i
= 0; i
< DRI3_NUM_BUFFERS
; i
++) {
293 if (pdraw
->buffers
[i
])
294 dri3_free_render_buffer(pdraw
, pdraw
->buffers
[i
]);
297 if (pdraw
->special_event
)
298 xcb_unregister_for_special_event(c
, pdraw
->special_event
);
302 static __GLXDRIdrawable
*
303 dri3_create_drawable(struct glx_screen
*base
, XID xDrawable
,
304 GLXDrawable drawable
, struct glx_config
*config_base
)
306 struct dri3_drawable
*pdraw
;
307 struct dri3_screen
*psc
= (struct dri3_screen
*) base
;
308 __GLXDRIconfigPrivate
*config
= (__GLXDRIconfigPrivate
*) config_base
;
309 GLint vblank_mode
= DRI_CONF_VBLANK_DEF_INTERVAL_1
;
311 pdraw
= calloc(1, sizeof(*pdraw
));
315 pdraw
->base
.destroyDrawable
= dri3_destroy_drawable
;
316 pdraw
->base
.xDrawable
= xDrawable
;
317 pdraw
->base
.drawable
= drawable
;
318 pdraw
->base
.psc
= &psc
->base
;
319 pdraw
->swap_interval
= 1; /* default may be overridden below */
320 pdraw
->have_back
= 0;
321 pdraw
->have_fake_front
= 0;
324 psc
->config
->configQueryi(psc
->driScreen
,
325 "vblank_mode", &vblank_mode
);
327 switch (vblank_mode
) {
328 case DRI_CONF_VBLANK_NEVER
:
329 case DRI_CONF_VBLANK_DEF_INTERVAL_0
:
330 pdraw
->swap_interval
= 0;
332 case DRI_CONF_VBLANK_DEF_INTERVAL_1
:
333 case DRI_CONF_VBLANK_ALWAYS_SYNC
:
335 pdraw
->swap_interval
= 1;
339 dri3_update_num_back(pdraw
);
341 (void) __glXInitialize(psc
->base
.dpy
);
343 /* Create a new drawable */
345 (*psc
->image_driver
->createNewDrawable
) (psc
->driScreen
,
346 config
->driConfig
, pdraw
);
348 if (!pdraw
->driDrawable
) {
354 * Make sure server has the same swap interval we do for the new
357 if (psc
->vtable
.setSwapInterval
)
358 psc
->vtable
.setSwapInterval(&pdraw
->base
, pdraw
->swap_interval
);
364 * Process one Present event
367 dri3_handle_present_event(struct dri3_drawable
*priv
, xcb_present_generic_event_t
*ge
)
369 switch (ge
->evtype
) {
370 case XCB_PRESENT_CONFIGURE_NOTIFY
: {
371 xcb_present_configure_notify_event_t
*ce
= (void *) ge
;
373 priv
->width
= ce
->width
;
374 priv
->height
= ce
->height
;
377 case XCB_PRESENT_COMPLETE_NOTIFY
: {
378 xcb_present_complete_notify_event_t
*ce
= (void *) ge
;
380 /* Compute the processed SBC number from the received 32-bit serial number merged
381 * with the upper 32-bits of the sent 64-bit serial number while checking for
384 if (ce
->kind
== XCB_PRESENT_COMPLETE_KIND_PIXMAP
) {
385 priv
->recv_sbc
= (priv
->send_sbc
& 0xffffffff00000000LL
) | ce
->serial
;
386 if (priv
->recv_sbc
> priv
->send_sbc
)
387 priv
->recv_sbc
-= 0x100000000;
389 case XCB_PRESENT_COMPLETE_MODE_FLIP
:
390 priv
->flipping
= true;
392 case XCB_PRESENT_COMPLETE_MODE_COPY
:
393 priv
->flipping
= false;
396 dri3_update_num_back(priv
);
398 priv
->recv_msc_serial
= ce
->serial
;
404 case XCB_PRESENT_EVENT_IDLE_NOTIFY
: {
405 xcb_present_idle_notify_event_t
*ie
= (void *) ge
;
408 for (b
= 0; b
< sizeof (priv
->buffers
) / sizeof (priv
->buffers
[0]); b
++) {
409 struct dri3_buffer
*buf
= priv
->buffers
[b
];
411 if (buf
&& buf
->pixmap
== ie
->pixmap
) {
413 if (priv
->num_back
<= b
&& b
< DRI3_MAX_BACK
) {
414 dri3_free_render_buffer(priv
, buf
);
415 priv
->buffers
[b
] = NULL
;
427 dri3_wait_for_event(__GLXDRIdrawable
*pdraw
)
429 xcb_connection_t
*c
= XGetXCBConnection(pdraw
->psc
->dpy
);
430 struct dri3_drawable
*priv
= (struct dri3_drawable
*) pdraw
;
431 xcb_generic_event_t
*ev
;
432 xcb_present_generic_event_t
*ge
;
435 ev
= xcb_wait_for_special_event(c
, priv
->special_event
);
439 dri3_handle_present_event(priv
, ge
);
443 /** dri3_wait_for_msc
445 * Get the X server to send an event when the target msc/divisor/remainder is
449 dri3_wait_for_msc(__GLXDRIdrawable
*pdraw
, int64_t target_msc
, int64_t divisor
,
450 int64_t remainder
, int64_t *ust
, int64_t *msc
, int64_t *sbc
)
452 xcb_connection_t
*c
= XGetXCBConnection(pdraw
->psc
->dpy
);
453 struct dri3_drawable
*priv
= (struct dri3_drawable
*) pdraw
;
456 /* Ask for the an event for the target MSC */
457 msc_serial
= ++priv
->send_msc_serial
;
458 xcb_present_notify_msc(c
,
459 priv
->base
.xDrawable
,
467 /* Wait for the event */
468 if (priv
->special_event
) {
469 while ((int32_t) (msc_serial
- priv
->recv_msc_serial
) > 0) {
470 if (!dri3_wait_for_event(pdraw
))
477 *sbc
= priv
->recv_sbc
;
482 /** dri3_drawable_get_msc
484 * Return the current UST/MSC/SBC triplet by asking the server
488 dri3_drawable_get_msc(struct glx_screen
*psc
, __GLXDRIdrawable
*pdraw
,
489 int64_t *ust
, int64_t *msc
, int64_t *sbc
)
491 return dri3_wait_for_msc(pdraw
, 0, 0, 0, ust
, msc
,sbc
);
494 /** dri3_wait_for_sbc
496 * Wait for the completed swap buffer count to reach the specified
497 * target. Presumably the application knows that this will be reached with
498 * outstanding complete events, or we're going to be here awhile.
501 dri3_wait_for_sbc(__GLXDRIdrawable
*pdraw
, int64_t target_sbc
, int64_t *ust
,
502 int64_t *msc
, int64_t *sbc
)
504 struct dri3_drawable
*priv
= (struct dri3_drawable
*) pdraw
;
506 while (priv
->recv_sbc
< target_sbc
) {
507 if (!dri3_wait_for_event(pdraw
))
513 *sbc
= priv
->recv_sbc
;
518 * Asks the driver to flush any queued work necessary for serializing with the
519 * X command stream, and optionally the slightly more strict requirement of
520 * glFlush() equivalence (which would require flushing even if nothing had
521 * been drawn to a window system framebuffer, for example).
524 dri3_flush(struct dri3_screen
*psc
,
525 struct dri3_drawable
*draw
,
527 enum __DRI2throttleReason throttle_reason
)
529 struct glx_context
*gc
= __glXGetCurrentContext();
532 struct dri3_context
*dri3Ctx
= (struct dri3_context
*)gc
;
534 (*psc
->f
->flush_with_flags
)(dri3Ctx
->driContext
, draw
->driDrawable
, flags
, throttle_reason
);
538 static xcb_gcontext_t
539 dri3_drawable_gc(struct dri3_drawable
*priv
)
543 xcb_connection_t
*c
= XGetXCBConnection(priv
->base
.psc
->dpy
);
547 (priv
->gc
= xcb_generate_id(c
)),
548 priv
->base
.xDrawable
,
549 XCB_GC_GRAPHICS_EXPOSURES
,
555 static struct dri3_buffer
*
556 dri3_back_buffer(struct dri3_drawable
*priv
)
558 return priv
->buffers
[DRI3_BACK_ID(priv
->cur_back
)];
561 static struct dri3_buffer
*
562 dri3_fake_front_buffer(struct dri3_drawable
*priv
)
564 return priv
->buffers
[DRI3_FRONT_ID
];
568 dri3_copy_area (xcb_connection_t
*c
/**< */,
569 xcb_drawable_t src_drawable
/**< */,
570 xcb_drawable_t dst_drawable
/**< */,
571 xcb_gcontext_t gc
/**< */,
572 int16_t src_x
/**< */,
573 int16_t src_y
/**< */,
574 int16_t dst_x
/**< */,
575 int16_t dst_y
/**< */,
576 uint16_t width
/**< */,
577 uint16_t height
/**< */)
579 xcb_void_cookie_t cookie
;
581 cookie
= xcb_copy_area_checked(c
,
591 xcb_discard_reply(c
, cookie
.sequence
);
595 dri3_copy_sub_buffer(__GLXDRIdrawable
*pdraw
, int x
, int y
,
596 int width
, int height
,
599 struct dri3_drawable
*priv
= (struct dri3_drawable
*) pdraw
;
600 struct dri3_screen
*psc
= (struct dri3_screen
*) pdraw
->psc
;
601 xcb_connection_t
*c
= XGetXCBConnection(priv
->base
.psc
->dpy
);
602 struct dri3_buffer
*back
= dri3_back_buffer(priv
);
606 /* Check we have the right attachments */
607 if (!priv
->have_back
|| priv
->is_pixmap
)
610 flags
= __DRI2_FLUSH_DRAWABLE
;
612 flags
|= __DRI2_FLUSH_CONTEXT
;
613 dri3_flush(psc
, priv
, flags
, __DRI2_THROTTLE_SWAPBUFFER
);
615 y
= priv
->height
- y
- height
;
617 dri3_fence_reset(c
, back
);
619 dri3_back_buffer(priv
)->pixmap
,
620 priv
->base
.xDrawable
,
621 dri3_drawable_gc(priv
),
622 x
, y
, x
, y
, width
, height
);
623 dri3_fence_trigger(c
, back
);
624 /* Refresh the fake front (if present) after we just damaged the real
627 if (priv
->have_fake_front
) {
628 dri3_fence_reset(c
, dri3_fake_front_buffer(priv
));
630 dri3_back_buffer(priv
)->pixmap
,
631 dri3_fake_front_buffer(priv
)->pixmap
,
632 dri3_drawable_gc(priv
),
633 x
, y
, x
, y
, width
, height
);
634 dri3_fence_trigger(c
, dri3_fake_front_buffer(priv
));
635 dri3_fence_await(c
, dri3_fake_front_buffer(priv
));
637 dri3_fence_await(c
, back
);
641 dri3_copy_drawable(struct dri3_drawable
*priv
, Drawable dest
, Drawable src
)
643 struct dri3_screen
*psc
= (struct dri3_screen
*) priv
->base
.psc
;
644 xcb_connection_t
*c
= XGetXCBConnection(priv
->base
.psc
->dpy
);
646 dri3_flush(psc
, priv
, __DRI2_FLUSH_DRAWABLE
, 0);
648 dri3_fence_reset(c
, dri3_fake_front_buffer(priv
));
651 dri3_drawable_gc(priv
),
652 0, 0, 0, 0, priv
->width
, priv
->height
);
653 dri3_fence_trigger(c
, dri3_fake_front_buffer(priv
));
654 dri3_fence_await(c
, dri3_fake_front_buffer(priv
));
658 dri3_wait_x(struct glx_context
*gc
)
660 struct dri3_drawable
*priv
= (struct dri3_drawable
*)
661 GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
);
663 if (priv
== NULL
|| !priv
->have_fake_front
)
666 dri3_copy_drawable(priv
, dri3_fake_front_buffer(priv
)->pixmap
, priv
->base
.xDrawable
);
670 dri3_wait_gl(struct glx_context
*gc
)
672 struct dri3_drawable
*priv
= (struct dri3_drawable
*)
673 GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
);
675 if (priv
== NULL
|| !priv
->have_fake_front
)
678 dri3_copy_drawable(priv
, priv
->base
.xDrawable
, dri3_fake_front_buffer(priv
)->pixmap
);
682 * Called by the driver when it needs to update the real front buffer with the
683 * contents of its fake front buffer.
686 dri3_flush_front_buffer(__DRIdrawable
*driDrawable
, void *loaderPrivate
)
688 struct glx_context
*gc
;
689 struct dri3_drawable
*pdraw
= loaderPrivate
;
690 struct dri3_screen
*psc
;
695 if (!pdraw
->base
.psc
)
698 psc
= (struct dri3_screen
*) pdraw
->base
.psc
;
700 (void) __glXInitialize(psc
->base
.dpy
);
702 gc
= __glXGetCurrentContext();
704 dri3_flush(psc
, pdraw
, __DRI2_FLUSH_DRAWABLE
, __DRI2_THROTTLE_FLUSHFRONT
);
710 dri3_cpp_for_format(uint32_t format
) {
712 case __DRI_IMAGE_FORMAT_R8
:
714 case __DRI_IMAGE_FORMAT_RGB565
:
715 case __DRI_IMAGE_FORMAT_GR88
:
717 case __DRI_IMAGE_FORMAT_XRGB8888
:
718 case __DRI_IMAGE_FORMAT_ARGB8888
:
719 case __DRI_IMAGE_FORMAT_ABGR8888
:
720 case __DRI_IMAGE_FORMAT_XBGR8888
:
721 case __DRI_IMAGE_FORMAT_XRGB2101010
:
722 case __DRI_IMAGE_FORMAT_ARGB2101010
:
723 case __DRI_IMAGE_FORMAT_SARGB8
:
725 case __DRI_IMAGE_FORMAT_NONE
:
732 /** dri3_alloc_render_buffer
734 * Use the driver createImage function to construct a __DRIimage, then
735 * get a file descriptor for that and create an X pixmap from that
737 * Allocate an xshmfence for synchronization
739 static struct dri3_buffer
*
740 dri3_alloc_render_buffer(struct glx_screen
*glx_screen
, Drawable draw
,
741 unsigned int format
, int width
, int height
, int depth
)
743 struct dri3_screen
*psc
= (struct dri3_screen
*) glx_screen
;
744 Display
*dpy
= glx_screen
->dpy
;
745 struct dri3_buffer
*buffer
;
746 xcb_connection_t
*c
= XGetXCBConnection(dpy
);
748 xcb_sync_fence_t sync_fence
;
749 struct xshmfence
*shm_fence
;
750 int buffer_fd
, fence_fd
;
753 /* Create an xshmfence object and
754 * prepare to send that to the X server
757 fence_fd
= xshmfence_alloc_shm();
760 shm_fence
= xshmfence_map_shm(fence_fd
);
761 if (shm_fence
== NULL
)
764 /* Allocate the image from the driver
766 buffer
= calloc(1, sizeof (struct dri3_buffer
));
770 buffer
->cpp
= dri3_cpp_for_format(format
);
774 buffer
->image
= (*psc
->image
->createImage
) (psc
->driScreen
,
777 __DRI_IMAGE_USE_SHARE
|__DRI_IMAGE_USE_SCANOUT
,
784 /* X wants the stride, so ask the image for it
786 if (!(*psc
->image
->queryImage
)(buffer
->image
, __DRI_IMAGE_ATTRIB_STRIDE
, &stride
))
787 goto no_buffer_attrib
;
789 buffer
->pitch
= stride
;
791 if (!(*psc
->image
->queryImage
)(buffer
->image
, __DRI_IMAGE_ATTRIB_FD
, &buffer_fd
))
792 goto no_buffer_attrib
;
794 xcb_dri3_pixmap_from_buffer(c
,
795 (pixmap
= xcb_generate_id(c
)),
798 width
, height
, buffer
->pitch
,
799 depth
, buffer
->cpp
* 8,
802 xcb_dri3_fence_from_fd(c
,
804 (sync_fence
= xcb_generate_id(c
)),
808 buffer
->pixmap
= pixmap
;
809 buffer
->own_pixmap
= true;
810 buffer
->sync_fence
= sync_fence
;
811 buffer
->shm_fence
= shm_fence
;
812 buffer
->width
= width
;
813 buffer
->height
= height
;
815 /* Mark the buffer as idle
817 dri3_fence_set(buffer
);
822 (*psc
->image
->destroyImage
)(buffer
->image
);
826 xshmfence_unmap_shm(shm_fence
);
832 /** dri3_free_render_buffer
834 * Free everything associated with one render buffer including pixmap, fence
835 * stuff and the driver image
838 dri3_free_render_buffer(struct dri3_drawable
*pdraw
, struct dri3_buffer
*buffer
)
840 struct dri3_screen
*psc
= (struct dri3_screen
*) pdraw
->base
.psc
;
841 xcb_connection_t
*c
= XGetXCBConnection(pdraw
->base
.psc
->dpy
);
843 if (buffer
->own_pixmap
)
844 xcb_free_pixmap(c
, buffer
->pixmap
);
845 xcb_sync_destroy_fence(c
, buffer
->sync_fence
);
846 xshmfence_unmap_shm(buffer
->shm_fence
);
847 (*psc
->image
->destroyImage
)(buffer
->image
);
852 /** dri3_flush_present_events
854 * Process any present events that have been received from the X server
857 dri3_flush_present_events(struct dri3_drawable
*priv
)
859 xcb_connection_t
*c
= XGetXCBConnection(priv
->base
.psc
->dpy
);
861 /* Check to see if any configuration changes have occurred
862 * since we were last invoked
864 if (priv
->special_event
) {
865 xcb_generic_event_t
*ev
;
867 while ((ev
= xcb_poll_for_special_event(c
, priv
->special_event
)) != NULL
) {
868 xcb_present_generic_event_t
*ge
= (void *) ev
;
869 dri3_handle_present_event(priv
, ge
);
874 /** dri3_update_drawable
876 * Called the first time we use the drawable and then
877 * after we receive present configure notify events to
878 * track the geometry of the drawable
881 dri3_update_drawable(__DRIdrawable
*driDrawable
, void *loaderPrivate
)
883 struct dri3_drawable
*priv
= loaderPrivate
;
884 xcb_connection_t
*c
= XGetXCBConnection(priv
->base
.psc
->dpy
);
886 /* First time through, go get the current drawable geometry
888 if (priv
->width
== 0 || priv
->height
== 0 || priv
->depth
== 0) {
889 xcb_get_geometry_cookie_t geom_cookie
;
890 xcb_get_geometry_reply_t
*geom_reply
;
891 xcb_void_cookie_t cookie
;
892 xcb_generic_error_t
*error
;
894 /* Try to select for input on the window.
896 * If the drawable is a window, this will get our events
899 * Otherwise, we'll get a BadWindow error back from this request which
900 * will let us know that the drawable is a pixmap instead.
904 cookie
= xcb_present_select_input_checked(c
,
905 (priv
->eid
= xcb_generate_id(c
)),
906 priv
->base
.xDrawable
,
907 XCB_PRESENT_EVENT_MASK_CONFIGURE_NOTIFY
|
908 XCB_PRESENT_EVENT_MASK_COMPLETE_NOTIFY
|
909 XCB_PRESENT_EVENT_MASK_IDLE_NOTIFY
);
911 /* Create an XCB event queue to hold present events outside of the usual
912 * application event queue
914 priv
->special_event
= xcb_register_for_special_xge(c
,
919 geom_cookie
= xcb_get_geometry(c
, priv
->base
.xDrawable
);
921 geom_reply
= xcb_get_geometry_reply(c
, geom_cookie
, NULL
);
926 priv
->width
= geom_reply
->width
;
927 priv
->height
= geom_reply
->height
;
928 priv
->depth
= geom_reply
->depth
;
929 priv
->is_pixmap
= false;
933 /* Check to see if our select input call failed. If it failed with a
934 * BadWindow error, then assume the drawable is a pixmap. Destroy the
935 * special event queue created above and mark the drawable as a pixmap
938 error
= xcb_request_check(c
, cookie
);
941 if (error
->error_code
!= BadWindow
) {
945 priv
->is_pixmap
= true;
946 xcb_unregister_for_special_event(c
, priv
->special_event
);
947 priv
->special_event
= NULL
;
950 dri3_flush_present_events(priv
);
954 /* the DRIimage createImage function takes __DRI_IMAGE_FORMAT codes, while
955 * the createImageFromFds call takes __DRI_IMAGE_FOURCC codes. To avoid
956 * complete confusion, just deal in __DRI_IMAGE_FORMAT codes for now and
957 * translate to __DRI_IMAGE_FOURCC codes in the call to createImageFromFds
960 image_format_to_fourcc(int format
)
963 /* Convert from __DRI_IMAGE_FORMAT to __DRI_IMAGE_FOURCC (sigh) */
965 case __DRI_IMAGE_FORMAT_SARGB8
: return __DRI_IMAGE_FOURCC_SARGB8888
;
966 case __DRI_IMAGE_FORMAT_RGB565
: return __DRI_IMAGE_FOURCC_RGB565
;
967 case __DRI_IMAGE_FORMAT_XRGB8888
: return __DRI_IMAGE_FOURCC_XRGB8888
;
968 case __DRI_IMAGE_FORMAT_ARGB8888
: return __DRI_IMAGE_FOURCC_ARGB8888
;
969 case __DRI_IMAGE_FORMAT_ABGR8888
: return __DRI_IMAGE_FOURCC_ABGR8888
;
970 case __DRI_IMAGE_FORMAT_XBGR8888
: return __DRI_IMAGE_FOURCC_XBGR8888
;
975 /** dri3_get_pixmap_buffer
977 * Get the DRM object for a pixmap from the X server and
978 * wrap that with a __DRIimage structure using createImageFromFds
980 static struct dri3_buffer
*
981 dri3_get_pixmap_buffer(__DRIdrawable
*driDrawable
,
983 enum dri3_buffer_type buffer_type
,
986 struct dri3_drawable
*pdraw
= loaderPrivate
;
987 int buf_id
= dri3_pixmap_buf_id(buffer_type
);
988 struct dri3_buffer
*buffer
= pdraw
->buffers
[buf_id
];
990 xcb_dri3_buffer_from_pixmap_cookie_t bp_cookie
;
991 xcb_dri3_buffer_from_pixmap_reply_t
*bp_reply
;
994 struct dri3_screen
*psc
;
996 xcb_sync_fence_t sync_fence
;
997 struct xshmfence
*shm_fence
;
999 __DRIimage
*image_planar
;
1005 pixmap
= pdraw
->base
.xDrawable
;
1006 psc
= (struct dri3_screen
*) pdraw
->base
.psc
;
1007 dpy
= psc
->base
.dpy
;
1008 c
= XGetXCBConnection(dpy
);
1010 buffer
= calloc(1, sizeof (struct dri3_buffer
));
1014 fence_fd
= xshmfence_alloc_shm();
1017 shm_fence
= xshmfence_map_shm(fence_fd
);
1018 if (shm_fence
== NULL
) {
1023 xcb_dri3_fence_from_fd(c
,
1025 (sync_fence
= xcb_generate_id(c
)),
1029 /* Get an FD for the pixmap object
1031 bp_cookie
= xcb_dri3_buffer_from_pixmap(c
, pixmap
);
1032 bp_reply
= xcb_dri3_buffer_from_pixmap_reply(c
, bp_cookie
, NULL
);
1035 fds
= xcb_dri3_buffer_from_pixmap_reply_fds(c
, bp_reply
);
1037 stride
= bp_reply
->stride
;
1040 /* createImageFromFds creates a wrapper __DRIimage structure which
1041 * can deal with multiple planes for things like Yuv images. So, once
1042 * we've gotten the planar wrapper, pull the single plane out of it and
1043 * discard the wrapper.
1045 image_planar
= (*psc
->image
->createImageFromFds
) (psc
->driScreen
,
1048 image_format_to_fourcc(format
),
1050 &stride
, &offset
, buffer
);
1055 buffer
->image
= (*psc
->image
->fromPlanar
)(image_planar
, 0, buffer
);
1057 (*psc
->image
->destroyImage
)(image_planar
);
1062 buffer
->pixmap
= pixmap
;
1063 buffer
->own_pixmap
= false;
1064 buffer
->width
= bp_reply
->width
;
1065 buffer
->height
= bp_reply
->height
;
1066 buffer
->buffer_type
= buffer_type
;
1067 buffer
->shm_fence
= shm_fence
;
1068 buffer
->sync_fence
= sync_fence
;
1070 pdraw
->buffers
[buf_id
] = buffer
;
1074 xcb_sync_destroy_fence(c
, sync_fence
);
1075 xshmfence_unmap_shm(shm_fence
);
1084 * Find an idle back buffer. If there isn't one, then
1085 * wait for a present idle notify event from the X server
1088 dri3_find_back(xcb_connection_t
*c
, struct dri3_drawable
*priv
)
1091 xcb_generic_event_t
*ev
;
1092 xcb_present_generic_event_t
*ge
;
1095 for (b
= 0; b
< priv
->num_back
; b
++) {
1096 int id
= DRI3_BACK_ID(b
);
1097 struct dri3_buffer
*buffer
= priv
->buffers
[id
];
1105 ev
= xcb_wait_for_special_event(c
, priv
->special_event
);
1109 dri3_handle_present_event(priv
, ge
);
1115 * Find a front or back buffer, allocating new ones as necessary
1117 static struct dri3_buffer
*
1118 dri3_get_buffer(__DRIdrawable
*driDrawable
,
1119 unsigned int format
,
1120 enum dri3_buffer_type buffer_type
,
1121 void *loaderPrivate
)
1123 struct dri3_drawable
*priv
= loaderPrivate
;
1124 xcb_connection_t
*c
= XGetXCBConnection(priv
->base
.psc
->dpy
);
1125 struct dri3_buffer
*buffer
;
1128 if (buffer_type
== dri3_buffer_back
) {
1129 int back
= dri3_find_back(c
, priv
);
1134 priv
->cur_back
= back
;
1135 buf_id
= DRI3_BACK_ID(priv
->cur_back
);
1137 buf_id
= DRI3_FRONT_ID
;
1140 buffer
= priv
->buffers
[buf_id
];
1142 /* Allocate a new buffer if there isn't an old one, or if that
1143 * old one is the wrong size
1145 if (!buffer
|| buffer
->width
!= priv
->width
|| buffer
->height
!= priv
->height
) {
1146 struct dri3_buffer
*new_buffer
;
1148 /* Allocate the new buffers
1150 new_buffer
= dri3_alloc_render_buffer(priv
->base
.psc
,
1151 priv
->base
.xDrawable
,
1152 format
, priv
->width
, priv
->height
, priv
->depth
);
1156 /* When resizing, copy the contents of the old buffer, waiting for that
1157 * copy to complete using our fences before proceeding
1159 switch (buffer_type
) {
1160 case dri3_buffer_back
:
1162 dri3_fence_reset(c
, new_buffer
);
1163 dri3_fence_await(c
, buffer
);
1167 dri3_drawable_gc(priv
),
1168 0, 0, 0, 0, priv
->width
, priv
->height
);
1169 dri3_fence_trigger(c
, new_buffer
);
1170 dri3_free_render_buffer(priv
, buffer
);
1173 case dri3_buffer_front
:
1174 dri3_fence_reset(c
, new_buffer
);
1176 priv
->base
.xDrawable
,
1178 dri3_drawable_gc(priv
),
1179 0, 0, 0, 0, priv
->width
, priv
->height
);
1180 dri3_fence_trigger(c
, new_buffer
);
1183 buffer
= new_buffer
;
1184 buffer
->buffer_type
= buffer_type
;
1185 priv
->buffers
[buf_id
] = buffer
;
1187 dri3_fence_await(c
, buffer
);
1189 /* Return the requested buffer */
1193 /** dri3_free_buffers
1195 * Free the front bufffer or all of the back buffers. Used
1196 * when the application changes which buffers it needs
1199 dri3_free_buffers(__DRIdrawable
*driDrawable
,
1200 enum dri3_buffer_type buffer_type
,
1201 void *loaderPrivate
)
1203 struct dri3_drawable
*priv
= loaderPrivate
;
1204 struct dri3_buffer
*buffer
;
1209 switch (buffer_type
) {
1210 case dri3_buffer_back
:
1211 first_id
= DRI3_BACK_ID(0);
1212 n_id
= DRI3_MAX_BACK
;
1214 case dri3_buffer_front
:
1215 first_id
= DRI3_FRONT_ID
;
1219 for (buf_id
= first_id
; buf_id
< first_id
+ n_id
; buf_id
++) {
1220 buffer
= priv
->buffers
[buf_id
];
1222 dri3_free_render_buffer(priv
, buffer
);
1223 priv
->buffers
[buf_id
] = NULL
;
1228 /** dri3_get_buffers
1230 * The published buffer allocation API.
1231 * Returns all of the necessary buffers, allocating
1235 dri3_get_buffers(__DRIdrawable
*driDrawable
,
1236 unsigned int format
,
1238 void *loaderPrivate
,
1239 uint32_t buffer_mask
,
1240 struct __DRIimageList
*buffers
)
1242 struct dri3_drawable
*priv
= loaderPrivate
;
1243 struct dri3_buffer
*front
, *back
;
1245 buffers
->image_mask
= 0;
1246 buffers
->front
= NULL
;
1247 buffers
->back
= NULL
;
1252 if (!dri3_update_drawable(driDrawable
, loaderPrivate
))
1255 /* pixmaps always have front buffers */
1256 if (priv
->is_pixmap
)
1257 buffer_mask
|= __DRI_IMAGE_BUFFER_FRONT
;
1259 if (buffer_mask
& __DRI_IMAGE_BUFFER_FRONT
) {
1260 if (priv
->is_pixmap
)
1261 front
= dri3_get_pixmap_buffer(driDrawable
,
1266 front
= dri3_get_buffer(driDrawable
,
1274 dri3_free_buffers(driDrawable
, dri3_buffer_front
, loaderPrivate
);
1275 priv
->have_fake_front
= 0;
1278 if (buffer_mask
& __DRI_IMAGE_BUFFER_BACK
) {
1279 back
= dri3_get_buffer(driDrawable
,
1285 priv
->have_back
= 1;
1287 dri3_free_buffers(driDrawable
, dri3_buffer_back
, loaderPrivate
);
1288 priv
->have_back
= 0;
1292 buffers
->image_mask
|= __DRI_IMAGE_BUFFER_FRONT
;
1293 buffers
->front
= front
->image
;
1294 priv
->have_fake_front
= !priv
->is_pixmap
;
1298 buffers
->image_mask
|= __DRI_IMAGE_BUFFER_BACK
;
1299 buffers
->back
= back
->image
;
1302 priv
->stamp
= stamp
;
1307 /* The image loader extension record for DRI3
1309 static const __DRIimageLoaderExtension imageLoaderExtension
= {
1310 {__DRI_IMAGE_LOADER
, __DRI_IMAGE_LOADER_VERSION
},
1311 .getBuffers
= dri3_get_buffers
,
1312 .flushFrontBuffer
= dri3_flush_front_buffer
,
1315 /** dri3_swap_buffers
1317 * Make the current back buffer visible using the present extension
1320 dri3_swap_buffers(__GLXDRIdrawable
*pdraw
, int64_t target_msc
, int64_t divisor
,
1321 int64_t remainder
, Bool flush
)
1323 struct dri3_drawable
*priv
= (struct dri3_drawable
*) pdraw
;
1324 struct dri3_screen
*psc
= (struct dri3_screen
*) priv
->base
.psc
;
1325 Display
*dpy
= priv
->base
.psc
->dpy
;
1326 xcb_connection_t
*c
= XGetXCBConnection(dpy
);
1327 int buf_id
= DRI3_BACK_ID(priv
->cur_back
);
1330 unsigned flags
= __DRI2_FLUSH_DRAWABLE
;
1332 flags
|= __DRI2_FLUSH_CONTEXT
;
1333 dri3_flush(psc
, priv
, flags
, __DRI2_THROTTLE_SWAPBUFFER
);
1335 dri3_flush_present_events(priv
);
1337 if (priv
->buffers
[buf_id
] && !priv
->is_pixmap
) {
1338 dri3_fence_reset(c
, priv
->buffers
[buf_id
]);
1340 /* Compute when we want the frame shown by taking the last known successful
1341 * MSC and adding in a swap interval for each outstanding swap request
1344 if (target_msc
== 0)
1345 target_msc
= priv
->msc
+ priv
->swap_interval
* (priv
->send_sbc
- priv
->recv_sbc
);
1347 priv
->buffers
[buf_id
]->busy
= 1;
1348 xcb_present_pixmap(c
,
1349 priv
->base
.xDrawable
,
1350 priv
->buffers
[buf_id
]->pixmap
,
1351 (uint32_t) priv
->send_sbc
,
1356 None
, /* target_crtc */
1358 priv
->buffers
[buf_id
]->sync_fence
,
1359 XCB_PRESENT_OPTION_NONE
,
1362 remainder
, 0, NULL
);
1363 ret
= (int64_t) priv
->send_sbc
;
1365 /* If there's a fake front, then copy the source back buffer
1366 * to the fake front to keep it up to date. This needs
1367 * to reset the fence and make future users block until
1368 * the X server is done copying the bits
1370 if (priv
->have_fake_front
) {
1371 dri3_fence_reset(c
, priv
->buffers
[DRI3_FRONT_ID
]);
1373 priv
->buffers
[buf_id
]->pixmap
,
1374 priv
->buffers
[DRI3_FRONT_ID
]->pixmap
,
1375 dri3_drawable_gc(priv
),
1376 0, 0, 0, 0, priv
->width
, priv
->height
);
1377 dri3_fence_trigger(c
, priv
->buffers
[DRI3_FRONT_ID
]);
1389 * Wrapper around xcb_dri3_open
1392 dri3_open(Display
*dpy
,
1396 xcb_dri3_open_cookie_t cookie
;
1397 xcb_dri3_open_reply_t
*reply
;
1398 xcb_connection_t
*c
= XGetXCBConnection(dpy
);
1401 cookie
= xcb_dri3_open(c
,
1405 reply
= xcb_dri3_open_reply(c
, cookie
, NULL
);
1409 if (reply
->nfd
!= 1) {
1414 fd
= xcb_dri3_open_reply_fds(c
, reply
)[0];
1415 fcntl(fd
, F_SETFD
, FD_CLOEXEC
);
1421 /** dri3_destroy_screen
1424 dri3_destroy_screen(struct glx_screen
*base
)
1426 struct dri3_screen
*psc
= (struct dri3_screen
*) base
;
1428 /* Free the direct rendering per screen data */
1429 (*psc
->core
->destroyScreen
) (psc
->driScreen
);
1430 driDestroyConfigs(psc
->driver_configs
);
1435 /** dri3_set_swap_interval
1437 * Record the application swap interval specification,
1440 dri3_set_swap_interval(__GLXDRIdrawable
*pdraw
, int interval
)
1442 struct dri3_drawable
*priv
= (struct dri3_drawable
*) pdraw
;
1443 GLint vblank_mode
= DRI_CONF_VBLANK_DEF_INTERVAL_1
;
1444 struct dri3_screen
*psc
= (struct dri3_screen
*) priv
->base
.psc
;
1447 psc
->config
->configQueryi(psc
->driScreen
,
1448 "vblank_mode", &vblank_mode
);
1450 switch (vblank_mode
) {
1451 case DRI_CONF_VBLANK_NEVER
:
1453 return GLX_BAD_VALUE
;
1455 case DRI_CONF_VBLANK_ALWAYS_SYNC
:
1457 return GLX_BAD_VALUE
;
1463 priv
->swap_interval
= interval
;
1464 dri3_update_num_back(priv
);
1469 /** dri3_get_swap_interval
1471 * Return the stored swap interval
1474 dri3_get_swap_interval(__GLXDRIdrawable
*pdraw
)
1476 struct dri3_drawable
*priv
= (struct dri3_drawable
*) pdraw
;
1478 return priv
->swap_interval
;
1482 dri3_bind_tex_image(Display
* dpy
,
1483 GLXDrawable drawable
,
1484 int buffer
, const int *attrib_list
)
1486 struct glx_context
*gc
= __glXGetCurrentContext();
1487 struct dri3_context
*pcp
= (struct dri3_context
*) gc
;
1488 __GLXDRIdrawable
*base
= GetGLXDRIDrawable(dpy
, drawable
);
1489 struct dri3_drawable
*pdraw
= (struct dri3_drawable
*) base
;
1490 struct dri3_screen
*psc
;
1492 if (pdraw
!= NULL
) {
1493 psc
= (struct dri3_screen
*) base
->psc
;
1495 (*psc
->f
->invalidate
)(pdraw
->driDrawable
);
1499 (*psc
->texBuffer
->setTexBuffer2
) (pcp
->driContext
,
1500 pdraw
->base
.textureTarget
,
1501 pdraw
->base
.textureFormat
,
1502 pdraw
->driDrawable
);
1507 dri3_release_tex_image(Display
* dpy
, GLXDrawable drawable
, int buffer
)
1509 struct glx_context
*gc
= __glXGetCurrentContext();
1510 struct dri3_context
*pcp
= (struct dri3_context
*) gc
;
1511 __GLXDRIdrawable
*base
= GetGLXDRIDrawable(dpy
, drawable
);
1512 struct dri3_drawable
*pdraw
= (struct dri3_drawable
*) base
;
1513 struct dri3_screen
*psc
;
1515 if (pdraw
!= NULL
) {
1516 psc
= (struct dri3_screen
*) base
->psc
;
1518 if (psc
->texBuffer
->releaseTexBuffer
)
1519 (*psc
->texBuffer
->releaseTexBuffer
) (pcp
->driContext
,
1520 pdraw
->base
.textureTarget
,
1521 pdraw
->driDrawable
);
1525 static const struct glx_context_vtable dri3_context_vtable
= {
1526 dri3_destroy_context
,
1528 dri3_unbind_context
,
1532 dri3_bind_tex_image
,
1533 dri3_release_tex_image
,
1534 NULL
, /* get_proc_address */
1537 /** dri3_bind_extensions
1539 * Enable all of the extensions supported on DRI3
1542 dri3_bind_extensions(struct dri3_screen
*psc
, struct glx_display
* priv
,
1543 const char *driverName
)
1545 const __DRIextension
**extensions
;
1549 extensions
= psc
->core
->getExtensions(psc
->driScreen
);
1551 __glXEnableDirectExtension(&psc
->base
, "GLX_SGI_video_sync");
1552 __glXEnableDirectExtension(&psc
->base
, "GLX_SGI_swap_control");
1553 __glXEnableDirectExtension(&psc
->base
, "GLX_MESA_swap_control");
1554 __glXEnableDirectExtension(&psc
->base
, "GLX_SGI_make_current_read");
1555 __glXEnableDirectExtension(&psc
->base
, "GLX_INTEL_swap_event");
1557 mask
= psc
->image_driver
->getAPIMask(psc
->driScreen
);
1559 __glXEnableDirectExtension(&psc
->base
, "GLX_ARB_create_context");
1560 __glXEnableDirectExtension(&psc
->base
, "GLX_ARB_create_context_profile");
1562 if ((mask
& (1 << __DRI_API_GLES2
)) != 0)
1563 __glXEnableDirectExtension(&psc
->base
,
1564 "GLX_EXT_create_context_es2_profile");
1566 for (i
= 0; extensions
[i
]; i
++) {
1567 if ((strcmp(extensions
[i
]->name
, __DRI_TEX_BUFFER
) == 0)) {
1568 psc
->texBuffer
= (__DRItexBufferExtension
*) extensions
[i
];
1569 __glXEnableDirectExtension(&psc
->base
, "GLX_EXT_texture_from_pixmap");
1572 if ((strcmp(extensions
[i
]->name
, __DRI2_FLUSH
) == 0)) {
1573 psc
->f
= (__DRI2flushExtension
*) extensions
[i
];
1574 /* internal driver extension, no GL extension exposed */
1577 if ((strcmp(extensions
[i
]->name
, __DRI2_CONFIG_QUERY
) == 0))
1578 psc
->config
= (__DRI2configQueryExtension
*) extensions
[i
];
1580 if (strcmp(extensions
[i
]->name
, __DRI2_ROBUSTNESS
) == 0)
1581 __glXEnableDirectExtension(&psc
->base
,
1582 "GLX_ARB_create_context_robustness");
1586 static const struct glx_screen_vtable dri3_screen_vtable
= {
1587 dri3_create_context
,
1588 dri3_create_context_attribs
1591 /** dri3_create_screen
1593 * Initialize DRI3 on the specified screen.
1595 * Opens the DRI device, locates the appropriate DRI driver
1598 * Checks to see if the driver supports the necessary extensions
1600 * Initializes the driver for the screen and sets up our structures
1603 static struct glx_screen
*
1604 dri3_create_screen(int screen
, struct glx_display
* priv
)
1606 xcb_connection_t
*c
= XGetXCBConnection(priv
->dpy
);
1607 const __DRIconfig
**driver_configs
;
1608 const __DRIextension
**extensions
;
1609 const struct dri3_display
*const pdp
= (struct dri3_display
*)
1611 struct dri3_screen
*psc
;
1612 __GLXDRIscreen
*psp
;
1613 struct glx_config
*configs
= NULL
, *visuals
= NULL
;
1614 char *driverName
, *deviceName
;
1617 psc
= calloc(1, sizeof *psc
);
1623 if (!glx_screen_init(&psc
->base
, screen
, priv
)) {
1628 psc
->fd
= dri3_open(priv
->dpy
, RootWindow(priv
->dpy
, screen
), None
);
1630 int conn_error
= xcb_connection_has_error(c
);
1632 glx_screen_cleanup(&psc
->base
);
1634 InfoMessageF("screen %d does not appear to be DRI3 capable\n", screen
);
1637 ErrorMessageF("Connection closed during DRI3 initialization failure");
1643 driverName
= loader_get_driver_for_fd(psc
->fd
, 0);
1645 ErrorMessageF("No driver found\n");
1649 psc
->driver
= driOpenDriver(driverName
);
1650 if (psc
->driver
== NULL
) {
1651 ErrorMessageF("driver pointer missing\n");
1655 extensions
= driGetDriverExtensions(psc
->driver
, driverName
);
1656 if (extensions
== NULL
)
1659 for (i
= 0; extensions
[i
]; i
++) {
1660 if (strcmp(extensions
[i
]->name
, __DRI_CORE
) == 0)
1661 psc
->core
= (__DRIcoreExtension
*) extensions
[i
];
1662 if (strcmp(extensions
[i
]->name
, __DRI_IMAGE_DRIVER
) == 0)
1663 psc
->image_driver
= (__DRIimageDriverExtension
*) extensions
[i
];
1667 if (psc
->core
== NULL
) {
1668 ErrorMessageF("core dri driver extension not found\n");
1672 if (psc
->image_driver
== NULL
) {
1673 ErrorMessageF("image driver extension not found\n");
1678 psc
->image_driver
->createNewScreen2(screen
, psc
->fd
,
1679 (const __DRIextension
**)
1680 &pdp
->loader_extensions
[0],
1682 &driver_configs
, psc
);
1684 if (psc
->driScreen
== NULL
) {
1685 ErrorMessageF("failed to create dri screen\n");
1689 extensions
= (*psc
->core
->getExtensions
)(psc
->driScreen
);
1691 for (i
= 0; extensions
[i
]; i
++) {
1692 if (strcmp(extensions
[i
]->name
, __DRI_IMAGE
) == 0)
1693 psc
->image
= (__DRIimageExtension
*) extensions
[i
];
1696 if (psc
->image
== NULL
) {
1697 ErrorMessageF("image extension not found\n");
1701 dri3_bind_extensions(psc
, priv
, driverName
);
1703 if (!psc
->f
|| psc
->f
->base
.version
< 4) {
1704 ErrorMessageF("Version 4 or later of flush extension not found\n");
1708 if (!psc
->texBuffer
|| psc
->texBuffer
->base
.version
< 2 ||
1709 !psc
->texBuffer
->setTexBuffer2
)
1711 ErrorMessageF("Version 2 or later of texBuffer extension not found\n");
1715 configs
= driConvertConfigs(psc
->core
, psc
->base
.configs
, driver_configs
);
1716 visuals
= driConvertConfigs(psc
->core
, psc
->base
.visuals
, driver_configs
);
1718 if (!configs
|| !visuals
)
1721 glx_config_destroy_list(psc
->base
.configs
);
1722 psc
->base
.configs
= configs
;
1723 glx_config_destroy_list(psc
->base
.visuals
);
1724 psc
->base
.visuals
= visuals
;
1726 psc
->driver_configs
= driver_configs
;
1728 psc
->base
.vtable
= &dri3_screen_vtable
;
1730 psc
->base
.driScreen
= psp
;
1731 psp
->destroyScreen
= dri3_destroy_screen
;
1732 psp
->createDrawable
= dri3_create_drawable
;
1733 psp
->swapBuffers
= dri3_swap_buffers
;
1735 psp
->getDrawableMSC
= dri3_drawable_get_msc
;
1736 psp
->waitForMSC
= dri3_wait_for_msc
;
1737 psp
->waitForSBC
= dri3_wait_for_sbc
;
1738 psp
->setSwapInterval
= dri3_set_swap_interval
;
1739 psp
->getSwapInterval
= dri3_get_swap_interval
;
1740 __glXEnableDirectExtension(&psc
->base
, "GLX_OML_sync_control");
1742 psp
->copySubBuffer
= dri3_copy_sub_buffer
;
1743 __glXEnableDirectExtension(&psc
->base
, "GLX_MESA_copy_sub_buffer");
1751 CriticalErrorMessageF("failed to load driver: %s\n", driverName
);
1754 glx_config_destroy_list(configs
);
1756 glx_config_destroy_list(visuals
);
1758 psc
->core
->destroyScreen(psc
->driScreen
);
1759 psc
->driScreen
= NULL
;
1763 dlclose(psc
->driver
);
1767 glx_screen_cleanup(&psc
->base
);
1773 /** dri_destroy_display
1775 * Called from __glXFreeDisplayPrivate.
1778 dri3_destroy_display(__GLXDRIdisplay
* dpy
)
1783 /** dri3_create_display
1785 * Allocate, initialize and return a __DRIdisplayPrivate object.
1786 * This is called from __glXInitialize() when we are given a new
1787 * display pointer. This is public to that function, but hidden from
1790 _X_HIDDEN __GLXDRIdisplay
*
1791 dri3_create_display(Display
* dpy
)
1793 struct dri3_display
*pdp
;
1795 xcb_connection_t
*c
= XGetXCBConnection(dpy
);
1796 xcb_dri3_query_version_cookie_t dri3_cookie
;
1797 xcb_dri3_query_version_reply_t
*dri3_reply
;
1798 xcb_present_query_version_cookie_t present_cookie
;
1799 xcb_present_query_version_reply_t
*present_reply
;
1800 xcb_generic_error_t
*error
;
1801 const xcb_query_extension_reply_t
*extension
;
1803 xcb_prefetch_extension_data(c
, &xcb_dri3_id
);
1804 xcb_prefetch_extension_data(c
, &xcb_present_id
);
1806 extension
= xcb_get_extension_data(c
, &xcb_dri3_id
);
1807 if (!(extension
&& extension
->present
))
1810 extension
= xcb_get_extension_data(c
, &xcb_present_id
);
1811 if (!(extension
&& extension
->present
))
1814 dri3_cookie
= xcb_dri3_query_version(c
,
1815 XCB_DRI3_MAJOR_VERSION
,
1816 XCB_DRI3_MINOR_VERSION
);
1819 present_cookie
= xcb_present_query_version(c
,
1820 XCB_PRESENT_MAJOR_VERSION
,
1821 XCB_PRESENT_MINOR_VERSION
);
1823 pdp
= malloc(sizeof *pdp
);
1827 dri3_reply
= xcb_dri3_query_version_reply(c
, dri3_cookie
, &error
);
1833 pdp
->dri3Major
= dri3_reply
->major_version
;
1834 pdp
->dri3Minor
= dri3_reply
->minor_version
;
1837 present_reply
= xcb_present_query_version_reply(c
, present_cookie
, &error
);
1838 if (!present_reply
) {
1842 pdp
->presentMajor
= present_reply
->major_version
;
1843 pdp
->presentMinor
= present_reply
->minor_version
;
1844 free(present_reply
);
1846 pdp
->base
.destroyDisplay
= dri3_destroy_display
;
1847 pdp
->base
.createScreen
= dri3_create_screen
;
1849 loader_set_logger(dri_message
);
1852 pdp
->loader_extensions
[i
++] = &imageLoaderExtension
.base
;
1854 pdp
->loader_extensions
[i
++] = &systemTimeExtension
.base
;
1856 pdp
->loader_extensions
[i
++] = NULL
;
1864 #endif /* GLX_DIRECT_RENDERING */