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diff --git a/src/mesa/cso_cache/cso_cache.h b/src/mesa/cso_cache/cso_cache.h
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+++ b/src/mesa/cso_cache/cso_cache.h
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+/**************************************************************************
+ *
+ * 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.
+ *
+ **************************************************************************/
+
+ /*
+  * Authors:
+  *   Zack Rusin <[email protected]>
+  */
+
+#ifndef CSO_CACHE_H
+#define CSO_CACHE_H
+
+#include "state_tracker/st_context.h"
+#include "pipe/p_context.h"
+#include "pipe/p_state.h"
+
+
+#include "main/hash.h"
+
+struct cso_cache_item {
+   unsigned key;
+
+   unsigned    state_size;
+   const void *state;
+
+   struct cso_cache_item *next;
+};
+
+struct cso_cache {
+   struct _mesa_HashTable *hash;
+};
+
+void cso_cache_destroy(struct cso_cache *sc);
+struct cso_cache *cso_cache_create(void);
+
+unsigned cso_construct_key(void *item, int item_size);
+
+struct cso_cache_item *cso_insert_state(struct cso_cache *sc,
+                                                   unsigned hash_key,
+                                                   void *state, int state_size);
+struct cso_cache_item *cso_find_state(struct cso_cache *sc,
+                                                 unsigned hash_key,
+                                                 void *state, int state_size);
+struct cso_cache_item *cso_remove_state(struct cso_cache *sc,
+                                                   unsigned hash_key,
+                                                   void *state, int state_size);
+
+struct pipe_blend_state *cso_cached_blend_state(
+    struct st_context *pipe,
+    const struct pipe_blend_state *state);
+
+#endif