1 /*****************************************************************************
2 * memcpy.c : classic memcpy module
3 *****************************************************************************
4 * Copyright (C) 2001 VideoLAN
5 * $Id: memcpy.c,v 1.4 2002/01/04 14:01:34 sam Exp $
7 * Authors: Samuel Hocevar <sam@zoy.org>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
30 #include <videolan/vlc.h>
38 #if defined( MODULE_NAME_IS_memcpy3dn )
40 # include "fastmemcpy.h"
41 #elif defined( MODULE_NAME_IS_memcpymmx )
43 # include "fastmemcpy.h"
44 #elif defined( MODULE_NAME_IS_memcpymmxext )
46 # include "fastmemcpy.h"
49 /*****************************************************************************
50 * Local and extern prototypes.
51 *****************************************************************************/
52 static void memcpy_getfunctions( function_list_t * p_function_list );
53 static int memcpy_Probe ( probedata_t *p_data );
54 #ifndef MODULE_NAME_IS_memcpy
55 void * _M( fast_memcpy ) ( void * to, const void * from, size_t len );
58 /*****************************************************************************
59 * Build configuration tree.
60 *****************************************************************************/
65 #ifdef MODULE_NAME_IS_memcpy
66 SET_DESCRIPTION( "libc memcpy module" )
67 ADD_CAPABILITY( MEMCPY, 50 )
69 ADD_SHORTCUT( "libc" )
70 ADD_SHORTCUT( "memcpy" )
71 #elif defined( MODULE_NAME_IS_memcpy3dn )
72 SET_DESCRIPTION( "3D Now! memcpy module" )
73 ADD_CAPABILITY( MEMCPY, 100 )
74 ADD_REQUIREMENT( 3DNOW )
76 ADD_SHORTCUT( "3dnow" )
77 ADD_SHORTCUT( "memcpy3dn" )
78 ADD_SHORTCUT( "memcpy3dnow" )
79 #elif defined( MODULE_NAME_IS_memcpymmx )
80 SET_DESCRIPTION( "MMX memcpy module" )
81 ADD_CAPABILITY( MEMCPY, 100 )
82 ADD_REQUIREMENT( MMX )
84 ADD_SHORTCUT( "memcpymmx" )
85 #elif defined( MODULE_NAME_IS_memcpymmxext )
86 SET_DESCRIPTION( "MMX EXT memcpy module" )
87 ADD_CAPABILITY( MEMCPY, 200 )
88 ADD_REQUIREMENT( MMXEXT )
89 ADD_SHORTCUT( "mmxext" )
90 ADD_SHORTCUT( "memcpymmxext" )
95 memcpy_getfunctions( &p_module->p_functions->memcpy );
98 MODULE_DEACTIVATE_START
99 MODULE_DEACTIVATE_STOP
101 /* Following functions are local */
103 /*****************************************************************************
104 * Functions exported as capabilities. They are declared as static so that
105 * we don't pollute the namespace too much.
106 *****************************************************************************/
107 static void memcpy_getfunctions( function_list_t * p_function_list )
109 p_function_list->pf_probe = memcpy_Probe;
110 #ifdef MODULE_NAME_IS_memcpy
111 p_function_list->functions.memcpy.fast_memcpy = memcpy;
113 p_function_list->functions.memcpy.fast_memcpy = _M( fast_memcpy );
117 /*****************************************************************************
118 * memcpy_Probe: returns a preference score
119 *****************************************************************************/
120 static int memcpy_Probe( probedata_t *p_data )