pipe-loader: remove HAVE_DRM_LOADER_GALLIUM and HAVE_PIPE_LOADER_DRM
[mesa.git] / src / gallium / auxiliary / pipe-loader / pipe_loader.c
1 /**************************************************************************
2 *
3 * Copyright 2012 Francisco Jerez
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 "pipe_loader_priv.h"
29
30 #include "util/u_inlines.h"
31 #include "util/u_memory.h"
32 #include "util/u_string.h"
33 #include "util/u_dl.h"
34
35 #define MODULE_PREFIX "pipe_"
36
37 static int (*backends[])(struct pipe_loader_device **, int) = {
38 #ifdef HAVE_LIBDRM
39 &pipe_loader_drm_probe,
40 #endif
41 &pipe_loader_sw_probe
42 };
43
44 int
45 pipe_loader_probe(struct pipe_loader_device **devs, int ndev)
46 {
47 int i, n = 0;
48
49 for (i = 0; i < Elements(backends); i++)
50 n += backends[i](&devs[n], MAX2(0, ndev - n));
51
52 return n;
53 }
54
55 void
56 pipe_loader_release(struct pipe_loader_device **devs, int ndev)
57 {
58 int i;
59
60 for (i = 0; i < ndev; i++)
61 devs[i]->ops->release(&devs[i]);
62 }
63
64 const struct drm_conf_ret *
65 pipe_loader_configuration(struct pipe_loader_device *dev,
66 enum drm_conf conf)
67 {
68 return dev->ops->configuration(dev, conf);
69 }
70
71 struct pipe_screen *
72 pipe_loader_create_screen(struct pipe_loader_device *dev,
73 const char *library_paths)
74 {
75 return dev->ops->create_screen(dev, library_paths);
76 }
77
78 struct util_dl_library *
79 pipe_loader_find_module(struct pipe_loader_device *dev,
80 const char *library_paths)
81 {
82 struct util_dl_library *lib;
83 const char *next;
84 char path[PATH_MAX];
85 int len, ret;
86
87 for (next = library_paths; *next; library_paths = next + 1) {
88 next = util_strchrnul(library_paths, ':');
89 len = next - library_paths;
90
91 if (len)
92 ret = util_snprintf(path, sizeof(path), "%.*s/%s%s%s",
93 len, library_paths,
94 MODULE_PREFIX, dev->driver_name, UTIL_DL_EXT);
95 else
96 ret = util_snprintf(path, sizeof(path), "%s%s%s",
97 MODULE_PREFIX, dev->driver_name, UTIL_DL_EXT);
98
99 if (ret > 0 && ret < sizeof(path)) {
100 lib = util_dl_open(path);
101 if (lib) {
102 return lib;
103 }
104 }
105 }
106
107 return NULL;
108 }