memcpy.c
上传用户:riyaled888
上传日期:2009-03-27
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文件大小:3k
- /*****************************************************************************
- * memcpy.c : classic memcpy module
- *****************************************************************************
- * Copyright (C) 2001 VideoLAN
- * $Id: memcpy.c 6961 2004-03-05 17:34:23Z sam $
- *
- * Authors: Samuel Hocevar <sam@zoy.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
- *****************************************************************************/
- /*****************************************************************************
- * Preamble
- *****************************************************************************/
- #include <stdlib.h>
- #include <string.h>
- #include <vlc/vlc.h>
- #undef HAVE_MMX
- #undef HAVE_MMX2
- #undef HAVE_SSE
- #undef HAVE_SSE2
- #undef HAVE_3DNOW
- #undef HAVE_ALTIVEC
- #if defined( MODULE_NAME_IS_memcpy3dn )
- # define PRIORITY 100
- # define HAVE_3DNOW
- #elif defined( MODULE_NAME_IS_memcpymmx )
- # define PRIORITY 100
- # define HAVE_MMX
- #elif defined( MODULE_NAME_IS_memcpymmxext )
- # define PRIORITY 200
- # define HAVE_MMX2
- #else
- # define PRIORITY 50
- #endif
- /*****************************************************************************
- * Extern prototype
- *****************************************************************************/
- #ifndef MODULE_NAME_IS_memcpy
- # define fast_memcpy E_(fast_memcpy)
- # include "fastmemcpy.h"
- #endif
- /*****************************************************************************
- * Module initializer
- *****************************************************************************/
- static int Activate ( vlc_object_t *p_this )
- {
- #ifdef MODULE_NAME_IS_memcpy
- p_this->p_vlc->pf_memcpy = memcpy;
- p_this->p_vlc->pf_memset = memset;
- #else
- p_this->p_vlc->pf_memcpy = fast_memcpy;
- p_this->p_vlc->pf_memset = NULL;
- #endif
- return VLC_SUCCESS;
- }
- /*****************************************************************************
- * Module descriptor
- *****************************************************************************/
- vlc_module_begin();
- #ifdef MODULE_NAME_IS_memcpy
- set_description( _("libc memcpy") );
- add_shortcut( "c" );
- add_shortcut( "libc" );
- #elif defined( MODULE_NAME_IS_memcpy3dn )
- set_description( _("3D Now! memcpy") );
- add_requirement( 3DNOW );
- add_shortcut( "3dn" );
- add_shortcut( "3dnow" );
- add_shortcut( "memcpy3dn" );
- add_shortcut( "memcpy3dnow" );
- #elif defined( MODULE_NAME_IS_memcpymmx )
- set_description( _("MMX memcpy") );
- add_requirement( MMX );
- add_shortcut( "mmx" );
- add_shortcut( "memcpymmx" );
- #elif defined( MODULE_NAME_IS_memcpymmxext )
- set_description( _("MMX EXT memcpy") );
- add_requirement( MMXEXT );
- add_shortcut( "mmxext" );
- add_shortcut( "memcpymmxext" );
- #endif
- set_capability( "memcpy", PRIORITY );
- set_callbacks( Activate, NULL );
- vlc_module_end();