2 * Mesa 3-D graphics library
4 * Copyright (C) 2009 Chia-I Wu <olv@0xlab.org>
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:
13 * The above copyright notice and this permission notice shall be included
14 * in all copies or substantial portions of the Software.
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.
28 * Remap table management.
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.
42 #include "glapi/glapi.h"
44 #define MAX_ENTRY_POINTS 16
46 #define need_MESA_remap_table
47 #include "main/remap_helper.h"
51 /* this is global for quick access */
52 int driDispatchRemapTable
[driDispatchRemapTable_size
];
56 * Map a function by its spec. The function will be added to glapi,
57 * and the dispatch offset will be returned.
59 * \param spec a '\0'-separated string array specifying a function.
60 * It begins with the parameter signature of the function,
61 * followed by the names of the entry points. An empty entry
62 * point name terminates the array.
64 * \return the offset of the (re-)mapped function in the dispatch
68 map_function_spec(const char *spec
)
70 const char *signature
;
71 const char *names
[MAX_ENTRY_POINTS
+ 1];
78 spec
+= strlen(spec
) + 1;
80 /* spec is terminated by an empty string */
82 names
[num_names
] = spec
;
84 if (num_names
>= MAX_ENTRY_POINTS
)
86 spec
+= strlen(spec
) + 1;
91 names
[num_names
] = NULL
;
93 /* add the entry points to the dispatch table */
94 return _glapi_add_dispatch(names
, signature
);
99 * Initialize the remap table. This is called in one_time_init().
100 * The remap table needs to be initialized before calling the
101 * CALL/GET/SET macros defined in main/dispatch.h.
104 _mesa_init_remap_table(void)
106 static bool initialized
= false;
113 /* initialize the MESA_remap_table_functions table */
114 for (i
= 0; i
< driDispatchRemapTable_size
; i
++) {
119 assert(i
== MESA_remap_table_functions
[i
].remap_index
);
120 spec
= _mesa_function_pool
+ MESA_remap_table_functions
[i
].pool_index
;
122 offset
= map_function_spec(spec
);
123 /* store the dispatch offset in the MESA_remap_table_functions table */
124 driDispatchRemapTable
[i
] = offset
;
126 const char *name
= spec
+ strlen(spec
) + 1;
127 _mesa_warning(NULL
, "failed to remap %s", name
);