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 struct dri3_drawable
*
82 loader_drawable_to_dri3_drawable(struct loader_dri3_drawable
*draw
) {
83 size_t offset
= offsetof(struct dri3_drawable
, loader_drawable
);
84 return (struct dri3_drawable
*)(((void*) draw
) - offset
);
88 glx_dri3_get_swap_interval(struct loader_dri3_drawable
*draw
)
90 struct dri3_drawable
*priv
= loader_drawable_to_dri3_drawable(draw
);
92 return priv
->swap_interval
;
96 glx_dri3_clamp_swap_interval(struct loader_dri3_drawable
*draw
, int interval
)
102 glx_dri3_set_swap_interval(struct loader_dri3_drawable
*draw
, int interval
)
104 struct dri3_drawable
*priv
= loader_drawable_to_dri3_drawable(draw
);
106 priv
->swap_interval
= interval
;
110 glx_dri3_set_drawable_size(struct loader_dri3_drawable
*draw
,
111 int width
, int height
)
117 glx_dri3_in_current_context(struct loader_dri3_drawable
*draw
)
119 struct dri3_drawable
*priv
= loader_drawable_to_dri3_drawable(draw
);
120 struct dri3_context
*pcp
= (struct dri3_context
*) __glXGetCurrentContext();
121 struct dri3_screen
*psc
= (struct dri3_screen
*) priv
->base
.psc
;
123 return (&pcp
->base
!= &dummyContext
) && pcp
->base
.psc
== &psc
->base
;
126 static __DRIcontext
*
127 glx_dri3_get_dri_context(struct loader_dri3_drawable
*draw
)
129 struct glx_context
*gc
= __glXGetCurrentContext();
130 struct dri3_context
*dri3Ctx
= (struct dri3_context
*) gc
;
132 return (gc
!= &dummyContext
) ? dri3Ctx
->driContext
: NULL
;
136 glx_dri3_get_dri_screen(struct loader_dri3_drawable
*draw
)
138 struct glx_context
*gc
= __glXGetCurrentContext();
139 struct dri3_context
*pcp
= (struct dri3_context
*) gc
;
140 struct dri3_screen
*psc
= (struct dri3_screen
*) pcp
->base
.psc
;
142 return (gc
!= &dummyContext
&& psc
) ? psc
->driScreen
: NULL
;
146 glx_dri3_flush_drawable(struct loader_dri3_drawable
*draw
, unsigned flags
)
148 loader_dri3_flush(draw
, flags
, __DRI2_THROTTLE_SWAPBUFFER
);
152 glx_dri3_show_fps(struct loader_dri3_drawable
*draw
, uint64_t current_ust
)
154 struct dri3_drawable
*priv
= loader_drawable_to_dri3_drawable(draw
);
155 const uint64_t interval
=
156 ((struct dri3_screen
*) priv
->base
.psc
)->show_fps_interval
;
163 /* DRI3+Present together uses microseconds for UST. */
164 if (priv
->previous_ust
+ interval
* 1000000 <= current_ust
) {
165 if (priv
->previous_ust
) {
166 fprintf(stderr
, "libGL: FPS = %.1f\n",
167 ((uint64_t) priv
->frames
* 1000000) /
168 (double)(current_ust
- priv
->previous_ust
));
171 priv
->previous_ust
= current_ust
;
175 static const struct loader_dri3_vtable glx_dri3_vtable
= {
176 .get_swap_interval
= glx_dri3_get_swap_interval
,
177 .clamp_swap_interval
= glx_dri3_clamp_swap_interval
,
178 .set_swap_interval
= glx_dri3_set_swap_interval
,
179 .set_drawable_size
= glx_dri3_set_drawable_size
,
180 .in_current_context
= glx_dri3_in_current_context
,
181 .get_dri_context
= glx_dri3_get_dri_context
,
182 .get_dri_screen
= glx_dri3_get_dri_screen
,
183 .flush_drawable
= glx_dri3_flush_drawable
,
184 .show_fps
= glx_dri3_show_fps
,
188 static const struct glx_context_vtable dri3_context_vtable
;
191 dri3_destroy_context(struct glx_context
*context
)
193 struct dri3_context
*pcp
= (struct dri3_context
*) context
;
194 struct dri3_screen
*psc
= (struct dri3_screen
*) context
->psc
;
196 driReleaseDrawables(&pcp
->base
);
198 free((char *) context
->extensions
);
200 (*psc
->core
->destroyContext
) (pcp
->driContext
);
206 dri3_bind_context(struct glx_context
*context
, struct glx_context
*old
,
207 GLXDrawable draw
, GLXDrawable read
)
209 struct dri3_context
*pcp
= (struct dri3_context
*) context
;
210 struct dri3_screen
*psc
= (struct dri3_screen
*) pcp
->base
.psc
;
211 struct dri3_drawable
*pdraw
, *pread
;
212 __DRIdrawable
*dri_draw
= NULL
, *dri_read
= NULL
;
214 pdraw
= (struct dri3_drawable
*) driFetchDrawable(context
, draw
);
215 pread
= (struct dri3_drawable
*) driFetchDrawable(context
, read
);
217 driReleaseDrawables(&pcp
->base
);
220 dri_draw
= pdraw
->loader_drawable
.dri_drawable
;
221 else if (draw
!= None
)
222 return GLXBadDrawable
;
225 dri_read
= pread
->loader_drawable
.dri_drawable
;
226 else if (read
!= None
)
227 return GLXBadDrawable
;
229 if (!(*psc
->core
->bindContext
) (pcp
->driContext
, dri_draw
, dri_read
))
230 return GLXBadContext
;
236 dri3_unbind_context(struct glx_context
*context
, struct glx_context
*new)
238 struct dri3_context
*pcp
= (struct dri3_context
*) context
;
239 struct dri3_screen
*psc
= (struct dri3_screen
*) pcp
->base
.psc
;
241 (*psc
->core
->unbindContext
) (pcp
->driContext
);
244 static struct glx_context
*
245 dri3_create_context_attribs(struct glx_screen
*base
,
246 struct glx_config
*config_base
,
247 struct glx_context
*shareList
,
248 unsigned num_attribs
,
249 const uint32_t *attribs
,
252 struct dri3_context
*pcp
= NULL
;
253 struct dri3_context
*pcp_shared
= NULL
;
254 struct dri3_screen
*psc
= (struct dri3_screen
*) base
;
255 __GLXDRIconfigPrivate
*config
= (__GLXDRIconfigPrivate
*) config_base
;
256 __DRIcontext
*shared
= NULL
;
258 uint32_t minor_ver
= 1;
259 uint32_t major_ver
= 2;
262 int reset
= __DRI_CTX_RESET_NO_NOTIFICATION
;
263 uint32_t ctx_attribs
[2 * 5];
264 unsigned num_ctx_attribs
= 0;
265 uint32_t render_type
;
267 /* Remap the GLX tokens to DRI2 tokens.
269 if (!dri2_convert_glx_attribs(num_attribs
, attribs
,
270 &major_ver
, &minor_ver
,
271 &render_type
, &flags
, &api
,
275 /* Check the renderType value */
276 if (!validate_renderType_against_config(config_base
, render_type
))
280 pcp_shared
= (struct dri3_context
*) shareList
;
281 shared
= pcp_shared
->driContext
;
284 pcp
= calloc(1, sizeof *pcp
);
286 *error
= __DRI_CTX_ERROR_NO_MEMORY
;
290 if (!glx_context_init(&pcp
->base
, &psc
->base
, &config
->base
))
293 ctx_attribs
[num_ctx_attribs
++] = __DRI_CTX_ATTRIB_MAJOR_VERSION
;
294 ctx_attribs
[num_ctx_attribs
++] = major_ver
;
295 ctx_attribs
[num_ctx_attribs
++] = __DRI_CTX_ATTRIB_MINOR_VERSION
;
296 ctx_attribs
[num_ctx_attribs
++] = minor_ver
;
298 /* Only send a value when the non-default value is requested. By doing
299 * this we don't have to check the driver's DRI3 version before sending the
302 if (reset
!= __DRI_CTX_RESET_NO_NOTIFICATION
) {
303 ctx_attribs
[num_ctx_attribs
++] = __DRI_CTX_ATTRIB_RESET_STRATEGY
;
304 ctx_attribs
[num_ctx_attribs
++] = reset
;
308 ctx_attribs
[num_ctx_attribs
++] = __DRI_CTX_ATTRIB_FLAGS
;
310 /* The current __DRI_CTX_FLAG_* values are identical to the
311 * GLX_CONTEXT_*_BIT values.
313 ctx_attribs
[num_ctx_attribs
++] = flags
;
317 (*psc
->image_driver
->createContextAttribs
) (psc
->driScreen
,
326 if (pcp
->driContext
== NULL
)
329 pcp
->base
.vtable
= &dri3_context_vtable
;
339 static struct glx_context
*
340 dri3_create_context(struct glx_screen
*base
,
341 struct glx_config
*config_base
,
342 struct glx_context
*shareList
, int renderType
)
346 return dri3_create_context_attribs(base
, config_base
, shareList
,
351 dri3_destroy_drawable(__GLXDRIdrawable
*base
)
353 struct dri3_drawable
*pdraw
= (struct dri3_drawable
*) base
;
355 loader_dri3_drawable_fini(&pdraw
->loader_drawable
);
360 static __GLXDRIdrawable
*
361 dri3_create_drawable(struct glx_screen
*base
, XID xDrawable
,
362 GLXDrawable drawable
, struct glx_config
*config_base
)
364 struct dri3_drawable
*pdraw
;
365 struct dri3_screen
*psc
= (struct dri3_screen
*) base
;
366 __GLXDRIconfigPrivate
*config
= (__GLXDRIconfigPrivate
*) config_base
;
368 pdraw
= calloc(1, sizeof(*pdraw
));
372 pdraw
->base
.destroyDrawable
= dri3_destroy_drawable
;
373 pdraw
->base
.xDrawable
= xDrawable
;
374 pdraw
->base
.drawable
= drawable
;
375 pdraw
->base
.psc
= &psc
->base
;
377 (void) __glXInitialize(psc
->base
.dpy
);
379 if (loader_dri3_drawable_init(XGetXCBConnection(base
->dpy
),
380 xDrawable
, psc
->driScreen
,
381 psc
->is_different_gpu
, config
->driConfig
,
382 &psc
->loader_dri3_ext
, &glx_dri3_vtable
,
383 &pdraw
->loader_drawable
)) {
391 /** dri3_wait_for_msc
393 * Get the X server to send an event when the target msc/divisor/remainder is
397 dri3_wait_for_msc(__GLXDRIdrawable
*pdraw
, int64_t target_msc
, int64_t divisor
,
398 int64_t remainder
, int64_t *ust
, int64_t *msc
, int64_t *sbc
)
400 struct dri3_drawable
*priv
= (struct dri3_drawable
*) pdraw
;
402 loader_dri3_wait_for_msc(&priv
->loader_drawable
, target_msc
, divisor
,
403 remainder
, ust
, msc
, sbc
);
408 /** dri3_drawable_get_msc
410 * Return the current UST/MSC/SBC triplet by asking the server
414 dri3_drawable_get_msc(struct glx_screen
*psc
, __GLXDRIdrawable
*pdraw
,
415 int64_t *ust
, int64_t *msc
, int64_t *sbc
)
417 return dri3_wait_for_msc(pdraw
, 0, 0, 0, ust
, msc
,sbc
);
420 /** dri3_wait_for_sbc
422 * Wait for the completed swap buffer count to reach the specified
423 * target. Presumably the application knows that this will be reached with
424 * outstanding complete events, or we're going to be here awhile.
427 dri3_wait_for_sbc(__GLXDRIdrawable
*pdraw
, int64_t target_sbc
, int64_t *ust
,
428 int64_t *msc
, int64_t *sbc
)
430 struct dri3_drawable
*priv
= (struct dri3_drawable
*) pdraw
;
432 return loader_dri3_wait_for_sbc(&priv
->loader_drawable
, target_sbc
,
437 dri3_copy_sub_buffer(__GLXDRIdrawable
*pdraw
, int x
, int y
,
438 int width
, int height
,
441 struct dri3_drawable
*priv
= (struct dri3_drawable
*) pdraw
;
443 loader_dri3_copy_sub_buffer(&priv
->loader_drawable
, x
, y
,
444 width
, height
, flush
);
448 dri3_wait_x(struct glx_context
*gc
)
450 struct dri3_drawable
*priv
= (struct dri3_drawable
*)
451 GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
);
454 loader_dri3_wait_x(&priv
->loader_drawable
);
458 dri3_wait_gl(struct glx_context
*gc
)
460 struct dri3_drawable
*priv
= (struct dri3_drawable
*)
461 GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
);
464 loader_dri3_wait_gl(&priv
->loader_drawable
);
468 * Called by the driver when it needs to update the real front buffer with the
469 * contents of its fake front buffer.
472 dri3_flush_front_buffer(__DRIdrawable
*driDrawable
, void *loaderPrivate
)
474 struct loader_dri3_drawable
*draw
= loaderPrivate
;
475 struct dri3_drawable
*pdraw
= loader_drawable_to_dri3_drawable(draw
);
476 struct dri3_screen
*psc
;
481 if (!pdraw
->base
.psc
)
484 psc
= (struct dri3_screen
*) pdraw
->base
.psc
;
486 (void) __glXInitialize(psc
->base
.dpy
);
488 loader_dri3_flush(draw
, __DRI2_FLUSH_DRAWABLE
, __DRI2_THROTTLE_FLUSHFRONT
);
490 loader_dri3_wait_gl(draw
);
493 /* The image loader extension record for DRI3
495 static const __DRIimageLoaderExtension imageLoaderExtension
= {
496 .base
= { __DRI_IMAGE_LOADER
, 1 },
498 .getBuffers
= loader_dri3_get_buffers
,
499 .flushFrontBuffer
= dri3_flush_front_buffer
,
502 const __DRIuseInvalidateExtension dri3UseInvalidate
= {
503 .base
= { __DRI_USE_INVALIDATE
, 1 }
506 static const __DRIextension
*loader_extensions
[] = {
507 &imageLoaderExtension
.base
,
508 &systemTimeExtension
.base
,
509 &dri3UseInvalidate
.base
,
513 /** dri3_swap_buffers
515 * Make the current back buffer visible using the present extension
518 dri3_swap_buffers(__GLXDRIdrawable
*pdraw
, int64_t target_msc
, int64_t divisor
,
519 int64_t remainder
, Bool flush
)
521 struct dri3_drawable
*priv
= (struct dri3_drawable
*) pdraw
;
522 unsigned flags
= __DRI2_FLUSH_DRAWABLE
;
525 flags
|= __DRI2_FLUSH_CONTEXT
;
527 return loader_dri3_swap_buffers_msc(&priv
->loader_drawable
,
528 target_msc
, divisor
, remainder
,
533 dri3_get_buffer_age(__GLXDRIdrawable
*pdraw
)
535 struct dri3_drawable
*priv
= (struct dri3_drawable
*)pdraw
;
537 return loader_dri3_query_buffer_age(&priv
->loader_drawable
);
540 /** dri3_destroy_screen
543 dri3_destroy_screen(struct glx_screen
*base
)
545 struct dri3_screen
*psc
= (struct dri3_screen
*) base
;
547 /* Free the direct rendering per screen data */
548 (*psc
->core
->destroyScreen
) (psc
->driScreen
);
549 driDestroyConfigs(psc
->driver_configs
);
554 /** dri3_set_swap_interval
556 * Record the application swap interval specification,
559 dri3_set_swap_interval(__GLXDRIdrawable
*pdraw
, int interval
)
561 struct dri3_drawable
*priv
= (struct dri3_drawable
*) pdraw
;
562 GLint vblank_mode
= DRI_CONF_VBLANK_DEF_INTERVAL_1
;
563 struct dri3_screen
*psc
= (struct dri3_screen
*) priv
->base
.psc
;
566 psc
->config
->configQueryi(psc
->driScreen
,
567 "vblank_mode", &vblank_mode
);
569 switch (vblank_mode
) {
570 case DRI_CONF_VBLANK_NEVER
:
572 return GLX_BAD_VALUE
;
574 case DRI_CONF_VBLANK_ALWAYS_SYNC
:
576 return GLX_BAD_VALUE
;
582 loader_dri3_set_swap_interval(&priv
->loader_drawable
, interval
);
587 /** dri3_get_swap_interval
589 * Return the stored swap interval
592 dri3_get_swap_interval(__GLXDRIdrawable
*pdraw
)
594 struct dri3_drawable
*priv
= (struct dri3_drawable
*) pdraw
;
596 return priv
->swap_interval
;
600 dri3_bind_tex_image(Display
* dpy
,
601 GLXDrawable drawable
,
602 int buffer
, const int *attrib_list
)
604 struct glx_context
*gc
= __glXGetCurrentContext();
605 struct dri3_context
*pcp
= (struct dri3_context
*) gc
;
606 __GLXDRIdrawable
*base
= GetGLXDRIDrawable(dpy
, drawable
);
607 struct dri3_drawable
*pdraw
= (struct dri3_drawable
*) base
;
608 struct dri3_screen
*psc
;
611 psc
= (struct dri3_screen
*) base
->psc
;
613 (*psc
->f
->invalidate
)(pdraw
->loader_drawable
.dri_drawable
);
617 (*psc
->texBuffer
->setTexBuffer2
) (pcp
->driContext
,
618 pdraw
->base
.textureTarget
,
619 pdraw
->base
.textureFormat
,
620 pdraw
->loader_drawable
.dri_drawable
);
625 dri3_release_tex_image(Display
* dpy
, GLXDrawable drawable
, int buffer
)
627 struct glx_context
*gc
= __glXGetCurrentContext();
628 struct dri3_context
*pcp
= (struct dri3_context
*) gc
;
629 __GLXDRIdrawable
*base
= GetGLXDRIDrawable(dpy
, drawable
);
630 struct dri3_drawable
*pdraw
= (struct dri3_drawable
*) base
;
631 struct dri3_screen
*psc
;
634 psc
= (struct dri3_screen
*) base
->psc
;
636 if (psc
->texBuffer
->base
.version
>= 3 &&
637 psc
->texBuffer
->releaseTexBuffer
!= NULL
)
638 (*psc
->texBuffer
->releaseTexBuffer
) (pcp
->driContext
,
639 pdraw
->base
.textureTarget
,
640 pdraw
->loader_drawable
.dri_drawable
);
644 static const struct glx_context_vtable dri3_context_vtable
= {
645 .destroy
= dri3_destroy_context
,
646 .bind
= dri3_bind_context
,
647 .unbind
= dri3_unbind_context
,
648 .wait_gl
= dri3_wait_gl
,
649 .wait_x
= dri3_wait_x
,
650 .use_x_font
= DRI_glXUseXFont
,
651 .bind_tex_image
= dri3_bind_tex_image
,
652 .release_tex_image
= dri3_release_tex_image
,
653 .get_proc_address
= NULL
,
654 .interop_query_device_info
= dri3_interop_query_device_info
,
655 .interop_export_object
= dri3_interop_export_object
658 /** dri3_bind_extensions
660 * Enable all of the extensions supported on DRI3
663 dri3_bind_extensions(struct dri3_screen
*psc
, struct glx_display
* priv
,
664 const char *driverName
)
666 const __DRIextension
**extensions
;
670 extensions
= psc
->core
->getExtensions(psc
->driScreen
);
672 __glXEnableDirectExtension(&psc
->base
, "GLX_SGI_video_sync");
673 __glXEnableDirectExtension(&psc
->base
, "GLX_SGI_swap_control");
674 __glXEnableDirectExtension(&psc
->base
, "GLX_MESA_swap_control");
675 __glXEnableDirectExtension(&psc
->base
, "GLX_SGI_make_current_read");
676 __glXEnableDirectExtension(&psc
->base
, "GLX_INTEL_swap_event");
678 mask
= psc
->image_driver
->getAPIMask(psc
->driScreen
);
680 __glXEnableDirectExtension(&psc
->base
, "GLX_ARB_create_context");
681 __glXEnableDirectExtension(&psc
->base
, "GLX_ARB_create_context_profile");
683 if ((mask
& ((1 << __DRI_API_GLES
) |
684 (1 << __DRI_API_GLES2
) |
685 (1 << __DRI_API_GLES3
))) != 0) {
686 __glXEnableDirectExtension(&psc
->base
,
687 "GLX_EXT_create_context_es_profile");
688 __glXEnableDirectExtension(&psc
->base
,
689 "GLX_EXT_create_context_es2_profile");
692 for (i
= 0; extensions
[i
]; i
++) {
693 /* when on a different gpu than the server, the server pixmaps
694 * can have a tiling mode we can't read. Thus we can't create
695 * a texture from them.
697 if (!psc
->is_different_gpu
&&
698 (strcmp(extensions
[i
]->name
, __DRI_TEX_BUFFER
) == 0)) {
699 psc
->texBuffer
= (__DRItexBufferExtension
*) extensions
[i
];
700 __glXEnableDirectExtension(&psc
->base
, "GLX_EXT_texture_from_pixmap");
703 if ((strcmp(extensions
[i
]->name
, __DRI2_FLUSH
) == 0)) {
704 psc
->f
= (__DRI2flushExtension
*) extensions
[i
];
705 /* internal driver extension, no GL extension exposed */
708 if (strcmp(extensions
[i
]->name
, __DRI_IMAGE
) == 0)
709 psc
->image
= (__DRIimageExtension
*) extensions
[i
];
711 if ((strcmp(extensions
[i
]->name
, __DRI2_CONFIG_QUERY
) == 0))
712 psc
->config
= (__DRI2configQueryExtension
*) extensions
[i
];
714 if (strcmp(extensions
[i
]->name
, __DRI2_ROBUSTNESS
) == 0)
715 __glXEnableDirectExtension(&psc
->base
,
716 "GLX_ARB_create_context_robustness");
718 if (strcmp(extensions
[i
]->name
, __DRI2_RENDERER_QUERY
) == 0) {
719 psc
->rendererQuery
= (__DRI2rendererQueryExtension
*) extensions
[i
];
720 __glXEnableDirectExtension(&psc
->base
, "GLX_MESA_query_renderer");
723 if (strcmp(extensions
[i
]->name
, __DRI2_INTEROP
) == 0)
724 psc
->interop
= (__DRI2interopExtension
*)extensions
[i
];
728 static const struct glx_screen_vtable dri3_screen_vtable
= {
729 .create_context
= dri3_create_context
,
730 .create_context_attribs
= dri3_create_context_attribs
,
731 .query_renderer_integer
= dri3_query_renderer_integer
,
732 .query_renderer_string
= dri3_query_renderer_string
,
735 /** dri3_create_screen
737 * Initialize DRI3 on the specified screen.
739 * Opens the DRI device, locates the appropriate DRI driver
742 * Checks to see if the driver supports the necessary extensions
744 * Initializes the driver for the screen and sets up our structures
747 static struct glx_screen
*
748 dri3_create_screen(int screen
, struct glx_display
* priv
)
750 xcb_connection_t
*c
= XGetXCBConnection(priv
->dpy
);
751 const __DRIconfig
**driver_configs
;
752 const __DRIextension
**extensions
;
753 const struct dri3_display
*const pdp
= (struct dri3_display
*)
755 struct dri3_screen
*psc
;
757 struct glx_config
*configs
= NULL
, *visuals
= NULL
;
758 char *driverName
, *deviceName
, *tmp
;
761 psc
= calloc(1, sizeof *psc
);
767 if (!glx_screen_init(&psc
->base
, screen
, priv
)) {
772 psc
->fd
= loader_dri3_open(c
, RootWindow(priv
->dpy
, screen
), None
);
774 int conn_error
= xcb_connection_has_error(c
);
776 glx_screen_cleanup(&psc
->base
);
778 InfoMessageF("screen %d does not appear to be DRI3 capable\n", screen
);
781 ErrorMessageF("Connection closed during DRI3 initialization failure");
786 psc
->fd
= loader_get_user_preferred_fd(psc
->fd
, &psc
->is_different_gpu
);
789 driverName
= loader_get_driver_for_fd(psc
->fd
);
791 ErrorMessageF("No driver found\n");
795 psc
->driver
= driOpenDriver(driverName
);
796 if (psc
->driver
== NULL
) {
797 ErrorMessageF("driver pointer missing\n");
801 extensions
= driGetDriverExtensions(psc
->driver
, driverName
);
802 if (extensions
== NULL
)
805 for (i
= 0; extensions
[i
]; i
++) {
806 if (strcmp(extensions
[i
]->name
, __DRI_CORE
) == 0)
807 psc
->core
= (__DRIcoreExtension
*) extensions
[i
];
808 if (strcmp(extensions
[i
]->name
, __DRI_IMAGE_DRIVER
) == 0)
809 psc
->image_driver
= (__DRIimageDriverExtension
*) extensions
[i
];
813 if (psc
->core
== NULL
) {
814 ErrorMessageF("core dri driver extension not found\n");
818 if (psc
->image_driver
== NULL
) {
819 ErrorMessageF("image driver extension not found\n");
824 psc
->image_driver
->createNewScreen2(screen
, psc
->fd
,
825 pdp
->loader_extensions
,
827 &driver_configs
, psc
);
829 if (psc
->driScreen
== NULL
) {
830 ErrorMessageF("failed to create dri screen\n");
834 dri3_bind_extensions(psc
, priv
, driverName
);
836 if (!psc
->image
|| psc
->image
->base
.version
< 7 || !psc
->image
->createImageFromFds
) {
837 ErrorMessageF("Version 7 or imageFromFds image extension not found\n");
841 if (!psc
->f
|| psc
->f
->base
.version
< 4) {
842 ErrorMessageF("Version 4 or later of flush extension not found\n");
846 if (psc
->is_different_gpu
&& psc
->image
->base
.version
< 9) {
847 ErrorMessageF("Different GPU, but image extension version 9 or later not found\n");
851 if (psc
->is_different_gpu
&& !psc
->image
->blitImage
) {
852 ErrorMessageF("Different GPU, but blitImage not implemented for this driver\n");
856 if (!psc
->is_different_gpu
&& (
857 !psc
->texBuffer
|| psc
->texBuffer
->base
.version
< 2 ||
858 !psc
->texBuffer
->setTexBuffer2
860 ErrorMessageF("Version 2 or later of texBuffer extension not found\n");
864 psc
->loader_dri3_ext
.core
= psc
->core
;
865 psc
->loader_dri3_ext
.image_driver
= psc
->image_driver
;
866 psc
->loader_dri3_ext
.flush
= psc
->f
;
867 psc
->loader_dri3_ext
.tex_buffer
= psc
->texBuffer
;
868 psc
->loader_dri3_ext
.image
= psc
->image
;
869 psc
->loader_dri3_ext
.config
= psc
->config
;
871 configs
= driConvertConfigs(psc
->core
, psc
->base
.configs
, driver_configs
);
872 visuals
= driConvertConfigs(psc
->core
, psc
->base
.visuals
, driver_configs
);
874 if (!configs
|| !visuals
) {
875 ErrorMessageF("No matching fbConfigs or visuals found\n");
879 glx_config_destroy_list(psc
->base
.configs
);
880 psc
->base
.configs
= configs
;
881 glx_config_destroy_list(psc
->base
.visuals
);
882 psc
->base
.visuals
= visuals
;
884 psc
->driver_configs
= driver_configs
;
886 psc
->base
.vtable
= &dri3_screen_vtable
;
888 psc
->base
.driScreen
= psp
;
889 psp
->destroyScreen
= dri3_destroy_screen
;
890 psp
->createDrawable
= dri3_create_drawable
;
891 psp
->swapBuffers
= dri3_swap_buffers
;
893 psp
->getDrawableMSC
= dri3_drawable_get_msc
;
894 psp
->waitForMSC
= dri3_wait_for_msc
;
895 psp
->waitForSBC
= dri3_wait_for_sbc
;
896 psp
->setSwapInterval
= dri3_set_swap_interval
;
897 psp
->getSwapInterval
= dri3_get_swap_interval
;
898 __glXEnableDirectExtension(&psc
->base
, "GLX_OML_sync_control");
900 psp
->copySubBuffer
= dri3_copy_sub_buffer
;
901 __glXEnableDirectExtension(&psc
->base
, "GLX_MESA_copy_sub_buffer");
903 psp
->getBufferAge
= dri3_get_buffer_age
;
904 __glXEnableDirectExtension(&psc
->base
, "GLX_EXT_buffer_age");
909 tmp
= getenv("LIBGL_SHOW_FPS");
910 psc
->show_fps_interval
= tmp
? atoi(tmp
) : 0;
911 if (psc
->show_fps_interval
< 0)
912 psc
->show_fps_interval
= 0;
914 InfoMessageF("Using DRI3 for screen %d\n", screen
);
919 CriticalErrorMessageF("failed to load driver: %s\n", driverName
);
922 glx_config_destroy_list(configs
);
924 glx_config_destroy_list(visuals
);
926 psc
->core
->destroyScreen(psc
->driScreen
);
927 psc
->driScreen
= NULL
;
931 dlclose(psc
->driver
);
935 glx_screen_cleanup(&psc
->base
);
941 /** dri_destroy_display
943 * Called from __glXFreeDisplayPrivate.
946 dri3_destroy_display(__GLXDRIdisplay
* dpy
)
951 /** dri3_create_display
953 * Allocate, initialize and return a __DRIdisplayPrivate object.
954 * This is called from __glXInitialize() when we are given a new
955 * display pointer. This is public to that function, but hidden from
958 _X_HIDDEN __GLXDRIdisplay
*
959 dri3_create_display(Display
* dpy
)
961 struct dri3_display
*pdp
;
962 xcb_connection_t
*c
= XGetXCBConnection(dpy
);
963 xcb_dri3_query_version_cookie_t dri3_cookie
;
964 xcb_dri3_query_version_reply_t
*dri3_reply
;
965 xcb_present_query_version_cookie_t present_cookie
;
966 xcb_present_query_version_reply_t
*present_reply
;
967 xcb_generic_error_t
*error
;
968 const xcb_query_extension_reply_t
*extension
;
970 xcb_prefetch_extension_data(c
, &xcb_dri3_id
);
971 xcb_prefetch_extension_data(c
, &xcb_present_id
);
973 extension
= xcb_get_extension_data(c
, &xcb_dri3_id
);
974 if (!(extension
&& extension
->present
))
977 extension
= xcb_get_extension_data(c
, &xcb_present_id
);
978 if (!(extension
&& extension
->present
))
981 dri3_cookie
= xcb_dri3_query_version(c
,
982 XCB_DRI3_MAJOR_VERSION
,
983 XCB_DRI3_MINOR_VERSION
);
986 present_cookie
= xcb_present_query_version(c
,
987 XCB_PRESENT_MAJOR_VERSION
,
988 XCB_PRESENT_MINOR_VERSION
);
990 pdp
= malloc(sizeof *pdp
);
994 dri3_reply
= xcb_dri3_query_version_reply(c
, dri3_cookie
, &error
);
1000 pdp
->dri3Major
= dri3_reply
->major_version
;
1001 pdp
->dri3Minor
= dri3_reply
->minor_version
;
1004 present_reply
= xcb_present_query_version_reply(c
, present_cookie
, &error
);
1005 if (!present_reply
) {
1009 pdp
->presentMajor
= present_reply
->major_version
;
1010 pdp
->presentMinor
= present_reply
->minor_version
;
1011 free(present_reply
);
1013 pdp
->base
.destroyDisplay
= dri3_destroy_display
;
1014 pdp
->base
.createScreen
= dri3_create_screen
;
1016 loader_set_logger(dri_message
);
1018 pdp
->loader_extensions
= loader_extensions
;
1026 #endif /* GLX_DIRECT_RENDERING */