1 files changed, 102 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/pipe-loader/pipe_loader.c b/src/gallium/auxiliary/pipe-loader/pipe_loader.c
new file mode 100644
index 0000000..6a10ac3
--- /dev/null
+++ b/src/gallium/auxiliary/pipe-loader/pipe_loader.c
@@ -0,0 +1,102 @@
+/**************************************************************************
+ *
+ * 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;
+}