| 0,0 → 1,83 |
|---|
| /* |
| * 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); |
| 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, |
| }; |