1 /**************************************************************************
2 *
3 * Copyright 2015 Advanced Micro Devices, Inc.
4 * All Rights Reserved.
5 *
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:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
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 VMWARE 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.
25 *
26 **************************************************************************/
27
28 #include <assert.h>
29 #include <fcntl.h>
30
31 #include "pipe/p_screen.h"
32 #include "pipe-loader/pipe_loader.h"
33 #include "state_tracker/drm_driver.h"
34
35 #include "util/u_memory.h"
36 #include "vl/vl_winsys.h"
37
38 static void
39 vl_drm_screen_destroy(struct vl_screen *vscreen);
40
41 struct vl_screen *
vl_drm_screen_create(int fd)42 vl_drm_screen_create(int fd)
43 {
44 struct vl_screen *vscreen;
45 int new_fd;
46
47 vscreen = CALLOC_STRUCT(vl_screen);
48 if (!vscreen)
49 return NULL;
50
51 if (fd < 0 || (new_fd = fcntl(fd, F_DUPFD_CLOEXEC, 3)) < 0)
52 goto free_screen;
53
54 if (pipe_loader_drm_probe_fd(&vscreen->dev, new_fd))
55 vscreen->pscreen = pipe_loader_create_screen(vscreen->dev);
56
57 if (!vscreen->pscreen)
58 goto release_pipe;
59
60 vscreen->destroy = vl_drm_screen_destroy;
61 vscreen->texture_from_drawable = NULL;
62 vscreen->get_dirty_area = NULL;
63 vscreen->get_timestamp = NULL;
64 vscreen->set_next_timestamp = NULL;
65 vscreen->get_private = NULL;
66 return vscreen;
67
68 release_pipe:
69 if (vscreen->dev)
70 pipe_loader_release(&vscreen->dev, 1);
71 else
72 close(new_fd);
73
74 free_screen:
75 FREE(vscreen);
76 return NULL;
77 }
78
79 static void
vl_drm_screen_destroy(struct vl_screen * vscreen)80 vl_drm_screen_destroy(struct vl_screen *vscreen)
81 {
82 assert(vscreen);
83
84 vscreen->pscreen->destroy(vscreen->pscreen);
85 pipe_loader_release(&vscreen->dev, 1);
86 FREE(vscreen);
87 }
88