| /************************************************************************** |
| * |
| * Copyright 2012 Francisco Jerez |
| * All Rights Reserved. |
| * |
| * 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, sub license, 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 NON-INFRINGEMENT. |
| * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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. |
| * |
| **************************************************************************/ |
| |
| #include "pipe_loader_priv.h" |
| |
| #include "util/u_inlines.h" |
| #include "util/u_memory.h" |
| #include "util/u_string.h" |
| #include "util/u_dl.h" |
| |
| #define MODULE_PREFIX "pipe_" |
| |
| static int (*backends[])(struct pipe_loader_device **, int) = { |
| #ifdef HAVE_PIPE_LOADER_DRM |
| &pipe_loader_drm_probe, |
| #endif |
| &pipe_loader_sw_probe |
| }; |
| |
| int |
| pipe_loader_probe(struct pipe_loader_device **devs, int ndev) |
| { |
| int i, n = 0; |
| |
| for (i = 0; i < Elements(backends); i++) |
| n += backends[i](&devs[n], MAX2(0, ndev - n)); |
| |
| return n; |
| } |
| |
| void |
| pipe_loader_release(struct pipe_loader_device **devs, int ndev) |
| { |
| int i; |
| |
| for (i = 0; i < ndev; i++) |
| devs[i]->ops->release(&devs[i]); |
| } |
| |
| struct pipe_screen * |
| pipe_loader_create_screen(struct pipe_loader_device *dev, |
| const char *library_paths) |
| { |
| return dev->ops->create_screen(dev, library_paths); |
| } |
| |
| struct util_dl_library * |
| pipe_loader_find_module(struct pipe_loader_device *dev, |
| const char *library_paths) |
| { |
| struct util_dl_library *lib; |
| const char *next; |
| char path[PATH_MAX]; |
| int len, ret; |
| |
| for (next = library_paths; *next; library_paths = next + 1) { |
| next = util_strchrnul(library_paths, ':'); |
| len = next - library_paths; |
| |
| if (len) |
| ret = util_snprintf(path, sizeof(path), "%.*s/%s%s%s", |
| len, library_paths, |
| MODULE_PREFIX, dev->driver_name, UTIL_DL_EXT); |
| else |
| ret = util_snprintf(path, sizeof(path), "%s%s%s", |
| MODULE_PREFIX, dev->driver_name, UTIL_DL_EXT); |
| |
| if (ret > 0 && ret < sizeof(path)) { |
| lib = util_dl_open(path); |
| if (lib) { |
| debug_printf("loaded %s\n", path); |
| return lib; |
| } |
| } |
| } |
| |
| return NULL; |
| } |