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diff --git a/xorg-server/glx/indirect_table.h b/xorg-server/glx/indirect_table.h
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+++ b/xorg-server/glx/indirect_table.h
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+/*
+ * (C) Copyright IBM Corporation 2005, 2006
+ * 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
+ * IBM,
+ * AND/OR THEIR 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 indirect_table.h
+ *
+ * \author Ian Romanick <idr@us.ibm.com>
+ */
+
+#ifndef INDIRECT_TABLE_H
+#define INDIRECT_TABLE_H
+
+#include <inttypes.h>
+
+/**
+ */
+struct __glXDispatchInfo {
+    /**
+     * Number of significant bits in the protocol opcode.  Opcodes with values
+     * larger than ((1 << bits) - 1) are invalid.
+     */
+    unsigned bits;
+
+    /**
+     */
+    const int_fast16_t * dispatch_tree;
+    
+    /**
+     * Array of protocol decode and dispatch functions index by the opcode
+     * search tree (i.e., \c dispatch_tree).  The first element in each pair
+     * is the non-byte-swapped version, and the second element is the
+     * byte-swapped version.
+     */
+    const void *(*dispatch_functions)[2];
+
+    /**
+     * Pointer to size validation data.  This table is indexed with the same
+     * value as ::dispatch_functions.
+     *
+     * The first element in the pair is the size, in bytes, of the fixed-size
+     * portion of the protocol.
+     *
+     * For opcodes that have a variable-size portion, the second value is an
+     * index in \c size_func_table to calculate that size.  If there is no
+     * variable-size portion, this index will be ~0.
+     *
+     * \note
+     * If size checking is not to be performed on this type of protocol
+     * data, this pointer will be \c NULL.
+     */
+    const int_fast16_t (*size_table)[2];
+
+    /**
+     * Array of functions used to calculate the variable-size portion of
+     * protocol messages.  Indexed by the second element of the entries
+     * in \c ::size_table.
+     *
+     * \note
+     * If size checking is not to be performed on this type of protocol
+     * data, this pointer will be \c NULL.
+     */
+    const gl_proto_size_func *size_func_table;
+};
+
+/**
+ * Sentinel value for an empty leaf in the \c dispatch_tree.
+ */
+#define EMPTY_LEAF         INT_FAST16_MIN
+
+/**
+ * Declare the index \c x as a leaf index.
+ */
+#define LEAF(x)            -x
+
+/**
+ * Determine if an index is a leaf index.
+ */
+#define IS_LEAF_INDEX(x)   ((x) <= 0)
+
+extern const struct __glXDispatchInfo Single_dispatch_info;
+extern const struct __glXDispatchInfo Render_dispatch_info;
+extern const struct __glXDispatchInfo VendorPriv_dispatch_info;
+
+#endif /* INDIRECT_TABLE_H */