1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
|
/*
* Copyright © 2011 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Authors:
* Benjamin Franzke <benjaminfranzke@googlemail.com>
*/
#include "gbm_gallium_drmint.h"
#include "util/u_memory.h"
#include "util/u_inlines.h"
#include "pipe-loader/pipe_loader.h"
static const char *
get_library_search_path(void)
{
const char *search_path = NULL;
/* don't allow setuid apps to use GBM_BACKENDS_PATH */
if (geteuid() == getuid())
search_path = getenv("GBM_BACKENDS_PATH");
if (search_path == NULL)
search_path = PIPE_SEARCH_DIR;
return search_path;
}
int
gallium_screen_create(struct gbm_gallium_drm_device *gdrm)
{
struct pipe_loader_device *dev;
#ifdef HAVE_PIPE_LOADER_DRM
int ret;
ret = pipe_loader_drm_probe_fd(&dev, gdrm->base.base.fd, true);
if (!ret)
return -1;
#endif /* HAVE_PIPE_LOADER_DRM */
gdrm->screen = pipe_loader_create_screen(dev, get_library_search_path());
if (gdrm->screen == NULL) {
debug_printf("failed to load driver: %s\n", gdrm->base.driver_name);
pipe_loader_release(&dev, 1);
return -1;
};
gdrm->driver = dev;
gdrm->base.driver_name = strdup(dev->driver_name);
return 0;
}
void
gallium_screen_destroy(struct gbm_gallium_drm_device *gdrm)
{
FREE(gdrm->base.driver_name);
gdrm->screen->destroy(gdrm->screen);
pipe_loader_release((struct pipe_loader_device **)&gdrm->driver, 1);
}
GBM_EXPORT struct gbm_backend gbm_backend = {
.backend_name = "gallium_drm",
.create_device = gbm_gallium_drm_device_create,
};
|
