1 files changed, 52 insertions, 0 deletions
diff --git a/src/mesa/pipe/pipebuffer/pb_buffer.c b/src/mesa/pipe/pipebuffer/pb_buffer.c
new file mode 100644
index 0000000000..99c960b697
--- /dev/null
+++ b/src/mesa/pipe/pipebuffer/pb_buffer.c
@@ -0,0 +1,52 @@
+/**************************************************************************
+ *
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * 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.
+ *
+ **************************************************************************/
+
+/**
+ * \file
+ * Buffer implementation.
+ * 
+ * \author José Fonseca <jrfonseca@tungstengraphics.com>
+ */
+
+
+#include "pb_buffer.h"
+
+
+void
+buffer_reference(struct pipe_buffer **dst,
+                 struct pipe_buffer *src)
+{
+   if(*dst != src) {
+      if (src)
+         src->vtbl->reference(src);
+      
+      if (*dst)
+         (*dst)->vtbl->release(*dst);
+   
+      *dst = src;
+   }
+}