1 /*
2 * Mesa 3-D graphics library
3 *
4 * Copyright (C) 2009 Chia-I Wu <[email protected]>
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
25
26 /**
27 * \file remap.c
28 * Remap table management.
29 *
30 * Entries in the dispatch table are either static or dynamic. The
31 * dispatch table is shared by mesa core and glapi. When they are
32 * built separately, it is possible that a static entry in mesa core
33 * is dynamic, or assigned a different static offset, in glapi. The
34 * remap table is in charge of mapping a static entry in mesa core to
35 * a dynamic entry, or the corresponding static entry, in glapi.
36 */
37
38 #include <stdbool.h>
39 #include <string.h>
40 #include "remap.h"
41
42 #include "glapi/glapi.h"
43
44 #define MAX_ENTRY_POINTS 16
45
46 #define need_MESA_remap_table
47 #include "main/remap_helper.h"
48 #include "errors.h"
49
50
51 /* this is global for quick access */
52 int driDispatchRemapTable[driDispatchRemapTable_size];
53
54
55
56 /**
57 * Initialize the remap table. This is called in one_time_init().
58 * The remap table needs to be initialized before calling the
59 * CALL/GET/SET macros defined in main/dispatch.h.
60 */
61 void
_mesa_init_remap_table(void)62 _mesa_init_remap_table(void)
63 {
64 static bool initialized = false;
65 GLint i;
66
67 if (initialized)
68 return;
69 initialized = true;
70
71 for (i = 0; i < driDispatchRemapTable_size; i++) {
72 /* sanity check */
73 assert(i == MESA_remap_table_functions[i].remap_index);
74 const char *name = _mesa_function_pool + MESA_remap_table_functions[i].pool_index;
75
76 /* store the dispatch offset in driDispatchRemapTable, for use by
77 * _gloffset_* macros.
78 */
79 driDispatchRemapTable[i] = _glapi_add_dispatch(name);
80 if (driDispatchRemapTable[i] < 0) {
81 _mesa_warning(NULL, "failed to remap %s", name);
82 }
83 }
84 }
85