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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4358 | Serge | 1 | /************************************************************************** |
| 2 | * |
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| 3 | * Copyright 2012 Francisco Jerez |
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| 4 | * All Rights Reserved. |
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| 5 | * |
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| 6 | * Permission is hereby granted, free of charge, to any person obtaining a |
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| 7 | * copy of this software and associated documentation files (the |
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| 8 | * "Software"), to deal in the Software without restriction, including |
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| 9 | * without limitation the rights to use, copy, modify, merge, publish, |
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| 10 | * distribute, sub license, and/or sell copies of the Software, and to |
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| 11 | * permit persons to whom the Software is furnished to do so, subject to |
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| 12 | * the following conditions: |
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| 13 | * |
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| 14 | * The above copyright notice and this permission notice (including the |
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| 15 | * next paragraph) shall be included in all copies or substantial portions |
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| 16 | * of the Software. |
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| 17 | * |
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| 18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
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| 19 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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| 20 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. |
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| 21 | * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR |
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| 22 | * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
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| 23 | * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
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| 24 | * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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| 25 | * |
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| 26 | **************************************************************************/ |
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| 27 | |||
| 28 | #include "pipe_loader_priv.h" |
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| 29 | |||
| 30 | #include "util/u_inlines.h" |
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| 31 | #include "util/u_memory.h" |
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| 32 | #include "util/u_string.h" |
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| 33 | #include "util/u_dl.h" |
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| 34 | |||
| 35 | #define MODULE_PREFIX "pipe_" |
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| 36 | |||
| 37 | static int (*backends[])(struct pipe_loader_device **, int) = { |
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| 38 | #ifdef HAVE_PIPE_LOADER_DRM |
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| 39 | &pipe_loader_drm_probe, |
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| 40 | #endif |
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| 41 | &pipe_loader_sw_probe |
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| 42 | }; |
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| 43 | |||
| 44 | int |
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| 45 | pipe_loader_probe(struct pipe_loader_device **devs, int ndev) |
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| 46 | { |
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| 47 | int i, n = 0; |
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| 48 | |||
| 49 | for (i = 0; i < Elements(backends); i++) |
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| 50 | n += backends[i](&devs[n], MAX2(0, ndev - n)); |
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| 51 | |||
| 52 | return n; |
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| 53 | } |
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| 54 | |||
| 55 | void |
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| 56 | pipe_loader_release(struct pipe_loader_device **devs, int ndev) |
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| 57 | { |
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| 58 | int i; |
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| 59 | |||
| 60 | for (i = 0; i < ndev; i++) |
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| 61 | devs[i]->ops->release(&devs[i]); |
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| 62 | } |
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| 63 | |||
| 64 | struct pipe_screen * |
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| 65 | pipe_loader_create_screen(struct pipe_loader_device *dev, |
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| 66 | const char *library_paths) |
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| 67 | { |
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| 68 | return dev->ops->create_screen(dev, library_paths); |
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| 69 | } |
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| 70 | |||
| 71 | struct util_dl_library * |
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| 72 | pipe_loader_find_module(struct pipe_loader_device *dev, |
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| 73 | const char *library_paths) |
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| 74 | { |
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| 75 | struct util_dl_library *lib; |
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| 76 | const char *next; |
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| 77 | char path[PATH_MAX]; |
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| 78 | int len, ret; |
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| 79 | |||
| 80 | for (next = library_paths; *next; library_paths = next + 1) { |
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| 81 | next = util_strchrnul(library_paths, ':'); |
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| 82 | len = next - library_paths; |
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| 83 | |||
| 84 | if (len) |
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| 85 | ret = util_snprintf(path, sizeof(path), "%.*s/%s%s%s", |
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| 86 | len, library_paths, |
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| 87 | MODULE_PREFIX, dev->driver_name, UTIL_DL_EXT); |
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| 88 | else |
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| 89 | ret = util_snprintf(path, sizeof(path), "%s%s%s", |
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| 90 | MODULE_PREFIX, dev->driver_name, UTIL_DL_EXT); |
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| 91 | |||
| 92 | if (ret > 0 && ret < sizeof(path)) { |
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| 93 | lib = util_dl_open(path); |
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| 94 | if (lib) { |
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| 95 | return lib; |
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| 96 | } |
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| 97 | } |
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| 98 | } |
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| 99 | |||
| 100 | return NULL; |
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| 101 | } |