1 /**************************************************************************
3 * Copyright 2009 Younes Manton.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
28 /* directly referenced from target Makefile, because of X dependencies */
30 #include <sys/types.h>
34 #include <X11/Xlib-xcb.h>
38 #include "pipe/p_screen.h"
39 #include "pipe/p_context.h"
40 #include "pipe/p_state.h"
41 #include "state_tracker/drm_driver.h"
43 #include "util/u_memory.h"
44 #include "util/u_hash.h"
45 #include "util/u_hash_table.h"
46 #include "util/u_inlines.h"
48 #include "vl/vl_compositor.h"
49 #include "vl/vl_winsys.h"
53 struct vl_screen base
;
54 xcb_connection_t
*conn
;
55 xcb_drawable_t drawable
;
57 unsigned width
, height
;
60 uint32_t buffer_names
[2];
61 struct u_rect dirty_areas
[2];
64 xcb_dri2_swap_buffers_cookie_t swap_cookie
;
65 xcb_dri2_wait_sbc_cookie_t wait_cookie
;
66 xcb_dri2_get_buffers_cookie_t buffers_cookie
;
68 int64_t last_ust
, ns_frame
, last_msc
, next_msc
;
71 static const unsigned int attachments
[1] = { XCB_DRI2_ATTACHMENT_BUFFER_BACK_LEFT
};
74 vl_dri2_handle_stamps(struct vl_dri_screen
* scrn
,
75 uint32_t ust_hi
, uint32_t ust_lo
,
76 uint32_t msc_hi
, uint32_t msc_lo
)
78 int64_t ust
= ((((uint64_t)ust_hi
) << 32) | ust_lo
) * 1000;
79 int64_t msc
= (((uint64_t)msc_hi
) << 32) | msc_lo
;
81 if (scrn
->last_ust
&& scrn
->last_msc
&& (ust
> scrn
->last_ust
) && (msc
> scrn
->last_msc
))
82 scrn
->ns_frame
= (ust
- scrn
->last_ust
) / (msc
- scrn
->last_msc
);
88 static xcb_dri2_get_buffers_reply_t
*
89 vl_dri2_get_flush_reply(struct vl_dri_screen
*scrn
)
91 xcb_dri2_wait_sbc_reply_t
*wait_sbc_reply
;
98 scrn
->flushed
= false;
100 free(xcb_dri2_swap_buffers_reply(scrn
->conn
, scrn
->swap_cookie
, NULL
));
102 wait_sbc_reply
= xcb_dri2_wait_sbc_reply(scrn
->conn
, scrn
->wait_cookie
, NULL
);
105 vl_dri2_handle_stamps(scrn
, wait_sbc_reply
->ust_hi
, wait_sbc_reply
->ust_lo
,
106 wait_sbc_reply
->msc_hi
, wait_sbc_reply
->msc_lo
);
107 free(wait_sbc_reply
);
109 return xcb_dri2_get_buffers_reply(scrn
->conn
, scrn
->buffers_cookie
, NULL
);
113 vl_dri2_flush_frontbuffer(struct pipe_screen
*screen
,
114 struct pipe_resource
*resource
,
115 unsigned level
, unsigned layer
,
116 void *context_private
)
118 struct vl_dri_screen
*scrn
= (struct vl_dri_screen
*)context_private
;
119 uint32_t msc_hi
, msc_lo
;
123 assert(context_private
);
125 free(vl_dri2_get_flush_reply(scrn
));
127 msc_hi
= scrn
->next_msc
>> 32;
128 msc_lo
= scrn
->next_msc
& 0xFFFFFFFF;
130 scrn
->swap_cookie
= xcb_dri2_swap_buffers_unchecked(scrn
->conn
, scrn
->drawable
, msc_hi
, msc_lo
, 0, 0, 0, 0);
131 scrn
->wait_cookie
= xcb_dri2_wait_sbc_unchecked(scrn
->conn
, scrn
->drawable
, 0, 0);
132 scrn
->buffers_cookie
= xcb_dri2_get_buffers_unchecked(scrn
->conn
, scrn
->drawable
, 1, 1, attachments
);
134 scrn
->flushed
= true;
135 scrn
->current_buffer
= !scrn
->current_buffer
;
139 vl_dri2_destroy_drawable(struct vl_dri_screen
*scrn
)
141 xcb_void_cookie_t destroy_cookie
;
142 if (scrn
->drawable
) {
143 free(vl_dri2_get_flush_reply(scrn
));
144 destroy_cookie
= xcb_dri2_destroy_drawable_checked(scrn
->conn
, scrn
->drawable
);
145 /* ignore any error here, since the drawable can be destroyed long ago */
146 free(xcb_request_check(scrn
->conn
, destroy_cookie
));
151 vl_dri2_set_drawable(struct vl_dri_screen
*scrn
, Drawable drawable
)
156 if (scrn
->drawable
== drawable
)
159 vl_dri2_destroy_drawable(scrn
);
161 xcb_dri2_create_drawable(scrn
->conn
, drawable
);
162 scrn
->current_buffer
= false;
163 vl_compositor_reset_dirty_area(&scrn
->dirty_areas
[0]);
164 vl_compositor_reset_dirty_area(&scrn
->dirty_areas
[1]);
165 scrn
->drawable
= drawable
;
168 struct pipe_resource
*
169 vl_screen_texture_from_drawable(struct vl_screen
*vscreen
, Drawable drawable
)
171 struct vl_dri_screen
*scrn
= (struct vl_dri_screen
*)vscreen
;
173 struct winsys_handle dri2_handle
;
174 struct pipe_resource
template, *tex
;
176 xcb_dri2_get_buffers_reply_t
*reply
;
177 xcb_dri2_dri2_buffer_t
*buffers
, *back_left
;
183 vl_dri2_set_drawable(scrn
, drawable
);
184 reply
= vl_dri2_get_flush_reply(scrn
);
186 xcb_dri2_get_buffers_cookie_t cookie
;
187 cookie
= xcb_dri2_get_buffers_unchecked(scrn
->conn
, drawable
, 1, 1, attachments
);
188 reply
= xcb_dri2_get_buffers_reply(scrn
->conn
, cookie
, NULL
);
193 buffers
= xcb_dri2_get_buffers_buffers(reply
);
199 for (i
= 0; i
< reply
->count
; ++i
) {
200 if (buffers
[i
].attachment
== XCB_DRI2_ATTACHMENT_BUFFER_BACK_LEFT
) {
201 back_left
= &buffers
[i
];
206 if (i
== reply
->count
) {
211 if (reply
->width
!= scrn
->width
|| reply
->height
!= scrn
->height
) {
212 vl_compositor_reset_dirty_area(&scrn
->dirty_areas
[0]);
213 vl_compositor_reset_dirty_area(&scrn
->dirty_areas
[1]);
214 scrn
->width
= reply
->width
;
215 scrn
->height
= reply
->height
;
217 } else if (back_left
->name
!= scrn
->buffer_names
[scrn
->current_buffer
]) {
218 vl_compositor_reset_dirty_area(&scrn
->dirty_areas
[scrn
->current_buffer
]);
219 scrn
->buffer_names
[scrn
->current_buffer
] = back_left
->name
;
222 memset(&dri2_handle
, 0, sizeof(dri2_handle
));
223 dri2_handle
.type
= DRM_API_HANDLE_TYPE_SHARED
;
224 dri2_handle
.handle
= back_left
->name
;
225 dri2_handle
.stride
= back_left
->pitch
;
227 memset(&template, 0, sizeof(template));
228 template.target
= PIPE_TEXTURE_2D
;
229 template.format
= PIPE_FORMAT_B8G8R8X8_UNORM
;
230 template.last_level
= 0;
231 template.width0
= reply
->width
;
232 template.height0
= reply
->height
;
234 template.array_size
= 1;
235 template.usage
= PIPE_USAGE_STATIC
;
236 template.bind
= PIPE_BIND_RENDER_TARGET
;
239 tex
= scrn
->base
.pscreen
->resource_from_handle(scrn
->base
.pscreen
, &template, &dri2_handle
);
246 vl_screen_get_dirty_area(struct vl_screen
*vscreen
)
248 struct vl_dri_screen
*scrn
= (struct vl_dri_screen
*)vscreen
;
250 return &scrn
->dirty_areas
[scrn
->current_buffer
];
254 vl_screen_get_timestamp(struct vl_screen
*vscreen
, Drawable drawable
)
256 struct vl_dri_screen
*scrn
= (struct vl_dri_screen
*)vscreen
;
257 xcb_dri2_get_msc_cookie_t cookie
;
258 xcb_dri2_get_msc_reply_t
*reply
;
262 vl_dri2_set_drawable(scrn
, drawable
);
263 if (!scrn
->last_ust
) {
264 cookie
= xcb_dri2_get_msc_unchecked(scrn
->conn
, drawable
);
265 reply
= xcb_dri2_get_msc_reply(scrn
->conn
, cookie
, NULL
);
268 vl_dri2_handle_stamps(scrn
, reply
->ust_hi
, reply
->ust_lo
,
269 reply
->msc_hi
, reply
->msc_lo
);
273 return scrn
->last_ust
;
277 vl_screen_set_next_timestamp(struct vl_screen
*vscreen
, uint64_t stamp
)
279 struct vl_dri_screen
*scrn
= (struct vl_dri_screen
*)vscreen
;
281 if (stamp
&& scrn
->last_ust
&& scrn
->ns_frame
&& scrn
->last_msc
)
282 scrn
->next_msc
= ((int64_t)stamp
- scrn
->last_ust
+ scrn
->ns_frame
/2) / scrn
->ns_frame
+ scrn
->last_msc
;
288 vl_screen_get_private(struct vl_screen
*vscreen
)
294 vl_screen_create(Display
*display
, int screen
)
296 struct vl_dri_screen
*scrn
;
297 const xcb_query_extension_reply_t
*extension
;
298 xcb_dri2_query_version_cookie_t dri2_query_cookie
;
299 xcb_dri2_query_version_reply_t
*dri2_query
= NULL
;
300 xcb_dri2_connect_cookie_t connect_cookie
;
301 xcb_dri2_connect_reply_t
*connect
= NULL
;
302 xcb_dri2_authenticate_cookie_t authenticate_cookie
;
303 xcb_dri2_authenticate_reply_t
*authenticate
= NULL
;
304 xcb_screen_iterator_t s
;
305 xcb_generic_error_t
*error
= NULL
;
307 int fd
, device_name_length
;
313 scrn
= CALLOC_STRUCT(vl_dri_screen
);
317 scrn
->conn
= XGetXCBConnection(display
);
321 xcb_prefetch_extension_data(scrn
->conn
, &xcb_dri2_id
);
323 extension
= xcb_get_extension_data(scrn
->conn
, &xcb_dri2_id
);
324 if (!(extension
&& extension
->present
))
327 dri2_query_cookie
= xcb_dri2_query_version (scrn
->conn
, XCB_DRI2_MAJOR_VERSION
, XCB_DRI2_MINOR_VERSION
);
328 dri2_query
= xcb_dri2_query_version_reply (scrn
->conn
, dri2_query_cookie
, &error
);
329 if (dri2_query
== NULL
|| error
!= NULL
|| dri2_query
->minor_version
< 2)
332 s
= xcb_setup_roots_iterator(xcb_get_setup(scrn
->conn
));
335 connect_cookie
= xcb_dri2_connect_unchecked(scrn
->conn
, s
.data
->root
, XCB_DRI2_DRIVER_TYPE_DRI
);
336 connect
= xcb_dri2_connect_reply(scrn
->conn
, connect_cookie
, NULL
);
337 if (connect
== NULL
|| connect
->driver_name_length
+ connect
->device_name_length
== 0)
340 device_name_length
= xcb_dri2_connect_device_name_length(connect
);
341 device_name
= CALLOC(1, device_name_length
+ 1);
342 memcpy(device_name
, xcb_dri2_connect_device_name(connect
), device_name_length
);
343 fd
= open(device_name
, O_RDWR
);
349 if (drmGetMagic(fd
, &magic
))
352 authenticate_cookie
= xcb_dri2_authenticate_unchecked(scrn
->conn
, s
.data
->root
, magic
);
353 authenticate
= xcb_dri2_authenticate_reply(scrn
->conn
, authenticate_cookie
, NULL
);
355 if (authenticate
== NULL
|| !authenticate
->authenticated
)
358 scrn
->base
.pscreen
= driver_descriptor
.create_screen(fd
);
359 if (!scrn
->base
.pscreen
)
362 scrn
->base
.pscreen
->flush_frontbuffer
= vl_dri2_flush_frontbuffer
;
363 vl_compositor_reset_dirty_area(&scrn
->dirty_areas
[0]);
364 vl_compositor_reset_dirty_area(&scrn
->dirty_areas
[1]);
383 void vl_screen_destroy(struct vl_screen
*vscreen
)
385 struct vl_dri_screen
*scrn
= (struct vl_dri_screen
*)vscreen
;
390 free(xcb_dri2_swap_buffers_reply(scrn
->conn
, scrn
->swap_cookie
, NULL
));
391 free(xcb_dri2_wait_sbc_reply(scrn
->conn
, scrn
->wait_cookie
, NULL
));
392 free(xcb_dri2_get_buffers_reply(scrn
->conn
, scrn
->buffers_cookie
, NULL
));
395 vl_dri2_destroy_drawable(scrn
);
396 scrn
->base
.pscreen
->destroy(scrn
->base
.pscreen
);