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
);
86 return (struct dri3_drawable
*)(((void*) draw
) - offset
);
90 glx_dri3_set_drawable_size(struct loader_dri3_drawable
*draw
,
91 int width
, int height
)
97 glx_dri3_in_current_context(struct loader_dri3_drawable
*draw
)
99 struct dri3_drawable
*priv
= loader_drawable_to_dri3_drawable(draw
);
104 struct dri3_context
*pcp
= (struct dri3_context
*) __glXGetCurrentContext();
105 struct dri3_screen
*psc
= (struct dri3_screen
*) priv
->base
.psc
;
107 return (&pcp
->base
!= &dummyContext
) && pcp
->base
.psc
== &psc
->base
;
110 static __DRIcontext
*
111 glx_dri3_get_dri_context(struct loader_dri3_drawable
*draw
)
113 struct glx_context
*gc
= __glXGetCurrentContext();
114 struct dri3_context
*dri3Ctx
= (struct dri3_context
*) gc
;
116 return (gc
!= &dummyContext
) ? dri3Ctx
->driContext
: NULL
;
120 glx_dri3_get_dri_screen(struct loader_dri3_drawable
*draw
)
122 struct glx_context
*gc
= __glXGetCurrentContext();
123 struct dri3_context
*pcp
= (struct dri3_context
*) gc
;
124 struct dri3_screen
*psc
= (struct dri3_screen
*) pcp
->base
.psc
;
126 return (gc
!= &dummyContext
&& psc
) ? psc
->driScreen
: NULL
;
130 glx_dri3_flush_drawable(struct loader_dri3_drawable
*draw
, unsigned flags
)
132 loader_dri3_flush(draw
, flags
, __DRI2_THROTTLE_SWAPBUFFER
);
136 glx_dri3_show_fps(struct loader_dri3_drawable
*draw
, uint64_t current_ust
)
138 struct dri3_drawable
*priv
= loader_drawable_to_dri3_drawable(draw
);
139 const uint64_t interval
=
140 ((struct dri3_screen
*) priv
->base
.psc
)->show_fps_interval
;
147 /* DRI3+Present together uses microseconds for UST. */
148 if (priv
->previous_ust
+ interval
* 1000000 <= current_ust
) {
149 if (priv
->previous_ust
) {
150 fprintf(stderr
, "libGL: FPS = %.1f\n",
151 ((uint64_t) priv
->frames
* 1000000) /
152 (double)(current_ust
- priv
->previous_ust
));
155 priv
->previous_ust
= current_ust
;
159 static const struct loader_dri3_vtable glx_dri3_vtable
= {
160 .set_drawable_size
= glx_dri3_set_drawable_size
,
161 .in_current_context
= glx_dri3_in_current_context
,
162 .get_dri_context
= glx_dri3_get_dri_context
,
163 .get_dri_screen
= glx_dri3_get_dri_screen
,
164 .flush_drawable
= glx_dri3_flush_drawable
,
165 .show_fps
= glx_dri3_show_fps
,
169 static const struct glx_context_vtable dri3_context_vtable
;
172 dri3_destroy_context(struct glx_context
*context
)
174 struct dri3_context
*pcp
= (struct dri3_context
*) context
;
175 struct dri3_screen
*psc
= (struct dri3_screen
*) context
->psc
;
177 driReleaseDrawables(&pcp
->base
);
179 free((char *) context
->extensions
);
181 (*psc
->core
->destroyContext
) (pcp
->driContext
);
187 dri3_bind_context(struct glx_context
*context
, struct glx_context
*old
,
188 GLXDrawable draw
, GLXDrawable read
)
190 struct dri3_context
*pcp
= (struct dri3_context
*) context
;
191 struct dri3_screen
*psc
= (struct dri3_screen
*) pcp
->base
.psc
;
192 struct dri3_drawable
*pdraw
, *pread
;
193 __DRIdrawable
*dri_draw
= NULL
, *dri_read
= NULL
;
195 pdraw
= (struct dri3_drawable
*) driFetchDrawable(context
, draw
);
196 pread
= (struct dri3_drawable
*) driFetchDrawable(context
, read
);
198 driReleaseDrawables(&pcp
->base
);
201 dri_draw
= pdraw
->loader_drawable
.dri_drawable
;
202 else if (draw
!= None
)
203 return GLXBadDrawable
;
206 dri_read
= pread
->loader_drawable
.dri_drawable
;
207 else if (read
!= None
)
208 return GLXBadDrawable
;
210 if (!(*psc
->core
->bindContext
) (pcp
->driContext
, dri_draw
, dri_read
))
211 return GLXBadContext
;
214 (*psc
->f
->invalidate
)(dri_draw
);
215 if (dri_read
&& dri_read
!= dri_draw
)
216 (*psc
->f
->invalidate
)(dri_read
);
222 dri3_unbind_context(struct glx_context
*context
, struct glx_context
*new)
224 struct dri3_context
*pcp
= (struct dri3_context
*) context
;
225 struct dri3_screen
*psc
= (struct dri3_screen
*) pcp
->base
.psc
;
227 (*psc
->core
->unbindContext
) (pcp
->driContext
);
230 static struct glx_context
*
231 dri3_create_context_attribs(struct glx_screen
*base
,
232 struct glx_config
*config_base
,
233 struct glx_context
*shareList
,
234 unsigned num_attribs
,
235 const uint32_t *attribs
,
238 struct dri3_context
*pcp
= NULL
;
239 struct dri3_context
*pcp_shared
= NULL
;
240 struct dri3_screen
*psc
= (struct dri3_screen
*) base
;
241 __GLXDRIconfigPrivate
*config
= (__GLXDRIconfigPrivate
*) config_base
;
242 __DRIcontext
*shared
= NULL
;
244 uint32_t minor_ver
= 1;
245 uint32_t major_ver
= 2;
248 int reset
= __DRI_CTX_RESET_NO_NOTIFICATION
;
249 uint32_t ctx_attribs
[2 * 5];
250 unsigned num_ctx_attribs
= 0;
251 uint32_t render_type
;
253 /* Remap the GLX tokens to DRI2 tokens.
255 if (!dri2_convert_glx_attribs(num_attribs
, attribs
,
256 &major_ver
, &minor_ver
,
257 &render_type
, &flags
, &api
,
261 /* Check the renderType value */
262 if (!validate_renderType_against_config(config_base
, render_type
))
266 pcp_shared
= (struct dri3_context
*) shareList
;
267 shared
= pcp_shared
->driContext
;
270 pcp
= calloc(1, sizeof *pcp
);
272 *error
= __DRI_CTX_ERROR_NO_MEMORY
;
276 if (!glx_context_init(&pcp
->base
, &psc
->base
, &config
->base
))
279 ctx_attribs
[num_ctx_attribs
++] = __DRI_CTX_ATTRIB_MAJOR_VERSION
;
280 ctx_attribs
[num_ctx_attribs
++] = major_ver
;
281 ctx_attribs
[num_ctx_attribs
++] = __DRI_CTX_ATTRIB_MINOR_VERSION
;
282 ctx_attribs
[num_ctx_attribs
++] = minor_ver
;
284 /* Only send a value when the non-default value is requested. By doing
285 * this we don't have to check the driver's DRI3 version before sending the
288 if (reset
!= __DRI_CTX_RESET_NO_NOTIFICATION
) {
289 ctx_attribs
[num_ctx_attribs
++] = __DRI_CTX_ATTRIB_RESET_STRATEGY
;
290 ctx_attribs
[num_ctx_attribs
++] = reset
;
294 ctx_attribs
[num_ctx_attribs
++] = __DRI_CTX_ATTRIB_FLAGS
;
296 /* The current __DRI_CTX_FLAG_* values are identical to the
297 * GLX_CONTEXT_*_BIT values.
299 ctx_attribs
[num_ctx_attribs
++] = flags
;
303 (*psc
->image_driver
->createContextAttribs
) (psc
->driScreen
,
312 if (pcp
->driContext
== NULL
)
315 pcp
->base
.vtable
= &dri3_context_vtable
;
325 static struct glx_context
*
326 dri3_create_context(struct glx_screen
*base
,
327 struct glx_config
*config_base
,
328 struct glx_context
*shareList
, int renderType
)
332 return dri3_create_context_attribs(base
, config_base
, shareList
,
337 dri3_destroy_drawable(__GLXDRIdrawable
*base
)
339 struct dri3_drawable
*pdraw
= (struct dri3_drawable
*) base
;
341 loader_dri3_drawable_fini(&pdraw
->loader_drawable
);
346 static __GLXDRIdrawable
*
347 dri3_create_drawable(struct glx_screen
*base
, XID xDrawable
,
348 GLXDrawable drawable
, struct glx_config
*config_base
)
350 struct dri3_drawable
*pdraw
;
351 struct dri3_screen
*psc
= (struct dri3_screen
*) base
;
352 __GLXDRIconfigPrivate
*config
= (__GLXDRIconfigPrivate
*) config_base
;
354 pdraw
= calloc(1, sizeof(*pdraw
));
358 pdraw
->base
.destroyDrawable
= dri3_destroy_drawable
;
359 pdraw
->base
.xDrawable
= xDrawable
;
360 pdraw
->base
.drawable
= drawable
;
361 pdraw
->base
.psc
= &psc
->base
;
363 (void) __glXInitialize(psc
->base
.dpy
);
365 if (loader_dri3_drawable_init(XGetXCBConnection(base
->dpy
),
366 xDrawable
, psc
->driScreen
,
367 psc
->is_different_gpu
, config
->driConfig
,
368 &psc
->loader_dri3_ext
, &glx_dri3_vtable
,
369 &pdraw
->loader_drawable
)) {
377 /** dri3_wait_for_msc
379 * Get the X server to send an event when the target msc/divisor/remainder is
383 dri3_wait_for_msc(__GLXDRIdrawable
*pdraw
, int64_t target_msc
, int64_t divisor
,
384 int64_t remainder
, int64_t *ust
, int64_t *msc
, int64_t *sbc
)
386 struct dri3_drawable
*priv
= (struct dri3_drawable
*) pdraw
;
388 loader_dri3_wait_for_msc(&priv
->loader_drawable
, target_msc
, divisor
,
389 remainder
, ust
, msc
, sbc
);
394 /** dri3_drawable_get_msc
396 * Return the current UST/MSC/SBC triplet by asking the server
400 dri3_drawable_get_msc(struct glx_screen
*psc
, __GLXDRIdrawable
*pdraw
,
401 int64_t *ust
, int64_t *msc
, int64_t *sbc
)
403 return dri3_wait_for_msc(pdraw
, 0, 0, 0, ust
, msc
,sbc
);
406 /** dri3_wait_for_sbc
408 * Wait for the completed swap buffer count to reach the specified
409 * target. Presumably the application knows that this will be reached with
410 * outstanding complete events, or we're going to be here awhile.
413 dri3_wait_for_sbc(__GLXDRIdrawable
*pdraw
, int64_t target_sbc
, int64_t *ust
,
414 int64_t *msc
, int64_t *sbc
)
416 struct dri3_drawable
*priv
= (struct dri3_drawable
*) pdraw
;
418 return loader_dri3_wait_for_sbc(&priv
->loader_drawable
, target_sbc
,
423 dri3_copy_sub_buffer(__GLXDRIdrawable
*pdraw
, int x
, int y
,
424 int width
, int height
,
427 struct dri3_drawable
*priv
= (struct dri3_drawable
*) pdraw
;
429 loader_dri3_copy_sub_buffer(&priv
->loader_drawable
, x
, y
,
430 width
, height
, flush
);
434 dri3_wait_x(struct glx_context
*gc
)
436 struct dri3_drawable
*priv
= (struct dri3_drawable
*)
437 GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
);
440 loader_dri3_wait_x(&priv
->loader_drawable
);
444 dri3_wait_gl(struct glx_context
*gc
)
446 struct dri3_drawable
*priv
= (struct dri3_drawable
*)
447 GetGLXDRIDrawable(gc
->currentDpy
, gc
->currentDrawable
);
450 loader_dri3_wait_gl(&priv
->loader_drawable
);
454 * Called by the driver when it needs to update the real front buffer with the
455 * contents of its fake front buffer.
458 dri3_flush_front_buffer(__DRIdrawable
*driDrawable
, void *loaderPrivate
)
460 struct loader_dri3_drawable
*draw
= loaderPrivate
;
461 struct dri3_drawable
*pdraw
= loader_drawable_to_dri3_drawable(draw
);
462 struct dri3_screen
*psc
;
467 if (!pdraw
->base
.psc
)
470 psc
= (struct dri3_screen
*) pdraw
->base
.psc
;
472 (void) __glXInitialize(psc
->base
.dpy
);
474 loader_dri3_flush(draw
, __DRI2_FLUSH_DRAWABLE
, __DRI2_THROTTLE_FLUSHFRONT
);
476 (*psc
->f
->invalidate
)(driDrawable
);
477 loader_dri3_wait_gl(draw
);
481 * Make sure all pending swapbuffers have been submitted to hardware
483 * \param driDrawable[in] Pointer to the dri drawable whose swaps we are
485 * \param loaderPrivate[in] Pointer to the corresponding struct
486 * loader_dri_drawable.
489 dri3_flush_swap_buffers(__DRIdrawable
*driDrawable
, void *loaderPrivate
)
491 struct loader_dri3_drawable
*draw
= loaderPrivate
;
492 struct dri3_drawable
*pdraw
= loader_drawable_to_dri3_drawable(draw
);
493 struct dri3_screen
*psc
;
498 if (!pdraw
->base
.psc
)
501 psc
= (struct dri3_screen
*) pdraw
->base
.psc
;
503 (void) __glXInitialize(psc
->base
.dpy
);
504 loader_dri3_swapbuffer_barrier(draw
);
508 dri_set_background_context(void *loaderPrivate
)
510 struct dri3_context
*pcp
= (struct dri3_context
*)loaderPrivate
;
511 __glXSetCurrentContext(&pcp
->base
);
515 dri_is_thread_safe(void *loaderPrivate
)
517 /* Unlike DRI2, DRI3 doesn't call GetBuffers/GetBuffersWithFormat
518 * during draw so we're safe here.
523 /* The image loader extension record for DRI3
525 static const __DRIimageLoaderExtension imageLoaderExtension
= {
526 .base
= { __DRI_IMAGE_LOADER
, 3 },
528 .getBuffers
= loader_dri3_get_buffers
,
529 .flushFrontBuffer
= dri3_flush_front_buffer
,
530 .flushSwapBuffers
= dri3_flush_swap_buffers
,
533 const __DRIuseInvalidateExtension dri3UseInvalidate
= {
534 .base
= { __DRI_USE_INVALIDATE
, 1 }
537 static const __DRIbackgroundCallableExtension driBackgroundCallable
= {
538 .base
= { __DRI_BACKGROUND_CALLABLE
, 2 },
540 .setBackgroundContext
= dri_set_background_context
,
541 .isThreadSafe
= dri_is_thread_safe
,
544 static const __DRIextension
*loader_extensions
[] = {
545 &imageLoaderExtension
.base
,
546 &dri3UseInvalidate
.base
,
547 &driBackgroundCallable
.base
,
551 /** dri3_swap_buffers
553 * Make the current back buffer visible using the present extension
556 dri3_swap_buffers(__GLXDRIdrawable
*pdraw
, int64_t target_msc
, int64_t divisor
,
557 int64_t remainder
, Bool flush
)
559 struct dri3_drawable
*priv
= (struct dri3_drawable
*) pdraw
;
560 unsigned flags
= __DRI2_FLUSH_DRAWABLE
;
563 flags
|= __DRI2_FLUSH_CONTEXT
;
565 return loader_dri3_swap_buffers_msc(&priv
->loader_drawable
,
566 target_msc
, divisor
, remainder
,
571 dri3_get_buffer_age(__GLXDRIdrawable
*pdraw
)
573 struct dri3_drawable
*priv
= (struct dri3_drawable
*)pdraw
;
575 return loader_dri3_query_buffer_age(&priv
->loader_drawable
);
578 /** dri3_destroy_screen
581 dri3_destroy_screen(struct glx_screen
*base
)
583 struct dri3_screen
*psc
= (struct dri3_screen
*) base
;
585 /* Free the direct rendering per screen data */
586 (*psc
->core
->destroyScreen
) (psc
->driScreen
);
587 driDestroyConfigs(psc
->driver_configs
);
592 /** dri3_set_swap_interval
594 * Record the application swap interval specification,
597 dri3_set_swap_interval(__GLXDRIdrawable
*pdraw
, int interval
)
599 assert(pdraw
!= NULL
);
601 struct dri3_drawable
*priv
= (struct dri3_drawable
*) pdraw
;
602 GLint vblank_mode
= DRI_CONF_VBLANK_DEF_INTERVAL_1
;
603 struct dri3_screen
*psc
= (struct dri3_screen
*) priv
->base
.psc
;
606 psc
->config
->configQueryi(psc
->driScreen
,
607 "vblank_mode", &vblank_mode
);
609 switch (vblank_mode
) {
610 case DRI_CONF_VBLANK_NEVER
:
612 return GLX_BAD_VALUE
;
614 case DRI_CONF_VBLANK_ALWAYS_SYNC
:
616 return GLX_BAD_VALUE
;
622 priv
->swap_interval
= interval
;
623 loader_dri3_set_swap_interval(&priv
->loader_drawable
, interval
);
628 /** dri3_get_swap_interval
630 * Return the stored swap interval
633 dri3_get_swap_interval(__GLXDRIdrawable
*pdraw
)
635 assert(pdraw
!= NULL
);
637 struct dri3_drawable
*priv
= (struct dri3_drawable
*) pdraw
;
639 return priv
->swap_interval
;
643 dri3_bind_tex_image(Display
* dpy
,
644 GLXDrawable drawable
,
645 int buffer
, const int *attrib_list
)
647 struct glx_context
*gc
= __glXGetCurrentContext();
648 struct dri3_context
*pcp
= (struct dri3_context
*) gc
;
649 __GLXDRIdrawable
*base
= GetGLXDRIDrawable(dpy
, drawable
);
650 struct dri3_drawable
*pdraw
= (struct dri3_drawable
*) base
;
651 struct dri3_screen
*psc
;
654 psc
= (struct dri3_screen
*) base
->psc
;
656 (*psc
->f
->invalidate
)(pdraw
->loader_drawable
.dri_drawable
);
660 (*psc
->texBuffer
->setTexBuffer2
) (pcp
->driContext
,
661 pdraw
->base
.textureTarget
,
662 pdraw
->base
.textureFormat
,
663 pdraw
->loader_drawable
.dri_drawable
);
668 dri3_release_tex_image(Display
* dpy
, GLXDrawable drawable
, int buffer
)
670 struct glx_context
*gc
= __glXGetCurrentContext();
671 struct dri3_context
*pcp
= (struct dri3_context
*) gc
;
672 __GLXDRIdrawable
*base
= GetGLXDRIDrawable(dpy
, drawable
);
673 struct dri3_drawable
*pdraw
= (struct dri3_drawable
*) base
;
674 struct dri3_screen
*psc
;
677 psc
= (struct dri3_screen
*) base
->psc
;
679 if (psc
->texBuffer
->base
.version
>= 3 &&
680 psc
->texBuffer
->releaseTexBuffer
!= NULL
)
681 (*psc
->texBuffer
->releaseTexBuffer
) (pcp
->driContext
,
682 pdraw
->base
.textureTarget
,
683 pdraw
->loader_drawable
.dri_drawable
);
687 static const struct glx_context_vtable dri3_context_vtable
= {
688 .destroy
= dri3_destroy_context
,
689 .bind
= dri3_bind_context
,
690 .unbind
= dri3_unbind_context
,
691 .wait_gl
= dri3_wait_gl
,
692 .wait_x
= dri3_wait_x
,
693 .use_x_font
= DRI_glXUseXFont
,
694 .bind_tex_image
= dri3_bind_tex_image
,
695 .release_tex_image
= dri3_release_tex_image
,
696 .get_proc_address
= NULL
,
697 .interop_query_device_info
= dri3_interop_query_device_info
,
698 .interop_export_object
= dri3_interop_export_object
701 /** dri3_bind_extensions
703 * Enable all of the extensions supported on DRI3
706 dri3_bind_extensions(struct dri3_screen
*psc
, struct glx_display
* priv
,
707 const char *driverName
)
709 const __DRIextension
**extensions
;
713 extensions
= psc
->core
->getExtensions(psc
->driScreen
);
715 __glXEnableDirectExtension(&psc
->base
, "GLX_SGI_video_sync");
716 __glXEnableDirectExtension(&psc
->base
, "GLX_SGI_swap_control");
717 __glXEnableDirectExtension(&psc
->base
, "GLX_MESA_swap_control");
718 __glXEnableDirectExtension(&psc
->base
, "GLX_SGI_make_current_read");
719 __glXEnableDirectExtension(&psc
->base
, "GLX_INTEL_swap_event");
721 mask
= psc
->image_driver
->getAPIMask(psc
->driScreen
);
723 __glXEnableDirectExtension(&psc
->base
, "GLX_ARB_create_context");
724 __glXEnableDirectExtension(&psc
->base
, "GLX_ARB_create_context_profile");
726 if ((mask
& ((1 << __DRI_API_GLES
) |
727 (1 << __DRI_API_GLES2
) |
728 (1 << __DRI_API_GLES3
))) != 0) {
729 __glXEnableDirectExtension(&psc
->base
,
730 "GLX_EXT_create_context_es_profile");
731 __glXEnableDirectExtension(&psc
->base
,
732 "GLX_EXT_create_context_es2_profile");
735 for (i
= 0; extensions
[i
]; i
++) {
736 /* when on a different gpu than the server, the server pixmaps
737 * can have a tiling mode we can't read. Thus we can't create
738 * a texture from them.
740 if (!psc
->is_different_gpu
&&
741 (strcmp(extensions
[i
]->name
, __DRI_TEX_BUFFER
) == 0)) {
742 psc
->texBuffer
= (__DRItexBufferExtension
*) extensions
[i
];
743 __glXEnableDirectExtension(&psc
->base
, "GLX_EXT_texture_from_pixmap");
746 if ((strcmp(extensions
[i
]->name
, __DRI2_FLUSH
) == 0)) {
747 psc
->f
= (__DRI2flushExtension
*) extensions
[i
];
748 /* internal driver extension, no GL extension exposed */
751 if (strcmp(extensions
[i
]->name
, __DRI_IMAGE
) == 0)
752 psc
->image
= (__DRIimageExtension
*) extensions
[i
];
754 if ((strcmp(extensions
[i
]->name
, __DRI2_CONFIG_QUERY
) == 0))
755 psc
->config
= (__DRI2configQueryExtension
*) extensions
[i
];
757 if (strcmp(extensions
[i
]->name
, __DRI2_ROBUSTNESS
) == 0)
758 __glXEnableDirectExtension(&psc
->base
,
759 "GLX_ARB_create_context_robustness");
761 if (strcmp(extensions
[i
]->name
, __DRI2_RENDERER_QUERY
) == 0) {
762 psc
->rendererQuery
= (__DRI2rendererQueryExtension
*) extensions
[i
];
763 __glXEnableDirectExtension(&psc
->base
, "GLX_MESA_query_renderer");
766 if (strcmp(extensions
[i
]->name
, __DRI2_INTEROP
) == 0)
767 psc
->interop
= (__DRI2interopExtension
*)extensions
[i
];
771 static const struct glx_screen_vtable dri3_screen_vtable
= {
772 .create_context
= dri3_create_context
,
773 .create_context_attribs
= dri3_create_context_attribs
,
774 .query_renderer_integer
= dri3_query_renderer_integer
,
775 .query_renderer_string
= dri3_query_renderer_string
,
778 /** dri3_create_screen
780 * Initialize DRI3 on the specified screen.
782 * Opens the DRI device, locates the appropriate DRI driver
785 * Checks to see if the driver supports the necessary extensions
787 * Initializes the driver for the screen and sets up our structures
790 static struct glx_screen
*
791 dri3_create_screen(int screen
, struct glx_display
* priv
)
793 xcb_connection_t
*c
= XGetXCBConnection(priv
->dpy
);
794 const __DRIconfig
**driver_configs
;
795 const __DRIextension
**extensions
;
796 const struct dri3_display
*const pdp
= (struct dri3_display
*)
798 struct dri3_screen
*psc
;
800 struct glx_config
*configs
= NULL
, *visuals
= NULL
;
801 char *driverName
, *deviceName
, *tmp
;
803 unsigned char disable
;
805 psc
= calloc(1, sizeof *psc
);
811 if (!glx_screen_init(&psc
->base
, screen
, priv
)) {
816 psc
->fd
= loader_dri3_open(c
, RootWindow(priv
->dpy
, screen
), None
);
818 int conn_error
= xcb_connection_has_error(c
);
820 glx_screen_cleanup(&psc
->base
);
822 InfoMessageF("screen %d does not appear to be DRI3 capable\n", screen
);
825 ErrorMessageF("Connection closed during DRI3 initialization failure");
830 psc
->fd
= loader_get_user_preferred_fd(psc
->fd
, &psc
->is_different_gpu
);
833 driverName
= loader_get_driver_for_fd(psc
->fd
);
835 ErrorMessageF("No driver found\n");
839 psc
->driver
= driOpenDriver(driverName
);
840 if (psc
->driver
== NULL
) {
841 ErrorMessageF("driver pointer missing\n");
845 extensions
= driGetDriverExtensions(psc
->driver
, driverName
);
846 if (extensions
== NULL
)
849 for (i
= 0; extensions
[i
]; i
++) {
850 if (strcmp(extensions
[i
]->name
, __DRI_CORE
) == 0)
851 psc
->core
= (__DRIcoreExtension
*) extensions
[i
];
852 if (strcmp(extensions
[i
]->name
, __DRI_IMAGE_DRIVER
) == 0)
853 psc
->image_driver
= (__DRIimageDriverExtension
*) extensions
[i
];
857 if (psc
->core
== NULL
) {
858 ErrorMessageF("core dri driver extension not found\n");
862 if (psc
->image_driver
== NULL
) {
863 ErrorMessageF("image driver extension not found\n");
868 psc
->image_driver
->createNewScreen2(screen
, psc
->fd
,
869 pdp
->loader_extensions
,
871 &driver_configs
, psc
);
873 if (psc
->driScreen
== NULL
) {
874 ErrorMessageF("failed to create dri screen\n");
878 dri3_bind_extensions(psc
, priv
, driverName
);
880 if (!psc
->image
|| psc
->image
->base
.version
< 7 || !psc
->image
->createImageFromFds
) {
881 ErrorMessageF("Version 7 or imageFromFds image extension not found\n");
885 if (!psc
->f
|| psc
->f
->base
.version
< 4) {
886 ErrorMessageF("Version 4 or later of flush extension not found\n");
890 if (psc
->is_different_gpu
&& psc
->image
->base
.version
< 9) {
891 ErrorMessageF("Different GPU, but image extension version 9 or later not found\n");
895 if (psc
->is_different_gpu
&& !psc
->image
->blitImage
) {
896 ErrorMessageF("Different GPU, but blitImage not implemented for this driver\n");
900 if (!psc
->is_different_gpu
&& (
901 !psc
->texBuffer
|| psc
->texBuffer
->base
.version
< 2 ||
902 !psc
->texBuffer
->setTexBuffer2
904 ErrorMessageF("Version 2 or later of texBuffer extension not found\n");
908 psc
->loader_dri3_ext
.core
= psc
->core
;
909 psc
->loader_dri3_ext
.image_driver
= psc
->image_driver
;
910 psc
->loader_dri3_ext
.flush
= psc
->f
;
911 psc
->loader_dri3_ext
.tex_buffer
= psc
->texBuffer
;
912 psc
->loader_dri3_ext
.image
= psc
->image
;
913 psc
->loader_dri3_ext
.config
= psc
->config
;
915 configs
= driConvertConfigs(psc
->core
, psc
->base
.configs
, driver_configs
);
916 visuals
= driConvertConfigs(psc
->core
, psc
->base
.visuals
, driver_configs
);
918 if (!configs
|| !visuals
) {
919 ErrorMessageF("No matching fbConfigs or visuals found\n");
923 glx_config_destroy_list(psc
->base
.configs
);
924 psc
->base
.configs
= configs
;
925 glx_config_destroy_list(psc
->base
.visuals
);
926 psc
->base
.visuals
= visuals
;
928 psc
->driver_configs
= driver_configs
;
930 psc
->base
.vtable
= &dri3_screen_vtable
;
932 psc
->base
.driScreen
= psp
;
933 psp
->destroyScreen
= dri3_destroy_screen
;
934 psp
->createDrawable
= dri3_create_drawable
;
935 psp
->swapBuffers
= dri3_swap_buffers
;
937 psp
->getDrawableMSC
= dri3_drawable_get_msc
;
938 psp
->waitForMSC
= dri3_wait_for_msc
;
939 psp
->waitForSBC
= dri3_wait_for_sbc
;
940 psp
->setSwapInterval
= dri3_set_swap_interval
;
941 psp
->getSwapInterval
= dri3_get_swap_interval
;
942 if (psc
->config
->configQueryb(psc
->driScreen
,
943 "glx_disable_oml_sync_control",
944 &disable
) || !disable
)
945 __glXEnableDirectExtension(&psc
->base
, "GLX_OML_sync_control");
947 psp
->copySubBuffer
= dri3_copy_sub_buffer
;
948 __glXEnableDirectExtension(&psc
->base
, "GLX_MESA_copy_sub_buffer");
950 psp
->getBufferAge
= dri3_get_buffer_age
;
951 if (psc
->config
->configQueryb(psc
->driScreen
,
952 "glx_disable_ext_buffer_age",
953 &disable
) || !disable
)
954 __glXEnableDirectExtension(&psc
->base
, "GLX_EXT_buffer_age");
959 tmp
= getenv("LIBGL_SHOW_FPS");
960 psc
->show_fps_interval
= tmp
? atoi(tmp
) : 0;
961 if (psc
->show_fps_interval
< 0)
962 psc
->show_fps_interval
= 0;
964 InfoMessageF("Using DRI3 for screen %d\n", screen
);
969 CriticalErrorMessageF("failed to load driver: %s\n", driverName
);
972 glx_config_destroy_list(configs
);
974 glx_config_destroy_list(visuals
);
976 psc
->core
->destroyScreen(psc
->driScreen
);
977 psc
->driScreen
= NULL
;
981 dlclose(psc
->driver
);
985 glx_screen_cleanup(&psc
->base
);
991 /** dri_destroy_display
993 * Called from __glXFreeDisplayPrivate.
996 dri3_destroy_display(__GLXDRIdisplay
* dpy
)
1001 /** dri3_create_display
1003 * Allocate, initialize and return a __DRIdisplayPrivate object.
1004 * This is called from __glXInitialize() when we are given a new
1005 * display pointer. This is public to that function, but hidden from
1008 _X_HIDDEN __GLXDRIdisplay
*
1009 dri3_create_display(Display
* dpy
)
1011 struct dri3_display
*pdp
;
1012 xcb_connection_t
*c
= XGetXCBConnection(dpy
);
1013 xcb_dri3_query_version_cookie_t dri3_cookie
;
1014 xcb_dri3_query_version_reply_t
*dri3_reply
;
1015 xcb_present_query_version_cookie_t present_cookie
;
1016 xcb_present_query_version_reply_t
*present_reply
;
1017 xcb_generic_error_t
*error
;
1018 const xcb_query_extension_reply_t
*extension
;
1020 xcb_prefetch_extension_data(c
, &xcb_dri3_id
);
1021 xcb_prefetch_extension_data(c
, &xcb_present_id
);
1023 extension
= xcb_get_extension_data(c
, &xcb_dri3_id
);
1024 if (!(extension
&& extension
->present
))
1027 extension
= xcb_get_extension_data(c
, &xcb_present_id
);
1028 if (!(extension
&& extension
->present
))
1031 dri3_cookie
= xcb_dri3_query_version(c
,
1032 XCB_DRI3_MAJOR_VERSION
,
1033 XCB_DRI3_MINOR_VERSION
);
1036 present_cookie
= xcb_present_query_version(c
,
1037 XCB_PRESENT_MAJOR_VERSION
,
1038 XCB_PRESENT_MINOR_VERSION
);
1040 pdp
= malloc(sizeof *pdp
);
1044 dri3_reply
= xcb_dri3_query_version_reply(c
, dri3_cookie
, &error
);
1050 pdp
->dri3Major
= dri3_reply
->major_version
;
1051 pdp
->dri3Minor
= dri3_reply
->minor_version
;
1054 present_reply
= xcb_present_query_version_reply(c
, present_cookie
, &error
);
1055 if (!present_reply
) {
1059 pdp
->presentMajor
= present_reply
->major_version
;
1060 pdp
->presentMinor
= present_reply
->minor_version
;
1061 free(present_reply
);
1063 pdp
->base
.destroyDisplay
= dri3_destroy_display
;
1064 pdp
->base
.createScreen
= dri3_create_screen
;
1066 loader_set_logger(dri_message
);
1068 pdp
->loader_extensions
= loader_extensions
;
1076 #endif /* GLX_DIRECT_RENDERING */