table.h revision 41c87cc5666de7ec5cfdea2c035c671048c06ca5 
1/*
2 * Mesa 3-D graphics library
3 *
4 * Copyright (C) 2010 LunarG Inc.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included
14 * in all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
23 *
24 * Authors:
25 *    Chia-I Wu <olv@lunarg.com>
26 */
27
28#ifndef _TABLE_H_
29#define _TABLE_H_
30
31#include "u_compiler.h"
32#include "entry.h"
33
34#define MAPI_TMP_TABLE
35#include "mapi_tmp.h"
36
37#define MAPI_TABLE_NUM_SLOTS (MAPI_TABLE_NUM_STATIC + MAPI_TABLE_NUM_DYNAMIC)
38#define MAPI_TABLE_SIZE (MAPI_TABLE_NUM_SLOTS * sizeof(mapi_func))
39
40extern const mapi_func table_noop_array[];
41
42/**
43 * Get the no-op dispatch table.
44 */
45static inline const struct mapi_table *
46table_get_noop(void)
47{
48   return (const struct mapi_table *) table_noop_array;
49}
50
51/**
52 * Set the function of a slot.
53 */
54static inline void
55table_set_func(struct mapi_table *tbl, int slot, mapi_func func)
56{
57   mapi_func *funcs = (mapi_func *) tbl;
58   funcs[slot] = func;
59}
60
61/**
62 * Return the function of a slot.
63 */
64static inline mapi_func
65table_get_func(const struct mapi_table *tbl, int slot)
66{
67   const mapi_func *funcs = (const mapi_func *) tbl;
68   return funcs[slot];
69}
70
71#endif /* _TABLE_H_ */
72