1 /*****************************************************************************
2 * vlc_cpu.h: CPU capabilities
3 *****************************************************************************
4 * Copyright (C) 1998-2009 the VideoLAN team
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
19 *****************************************************************************/
23 * This file provides CPU-specific optimization flags.
29 # if defined (__i386__) || defined (__x86_64__)
30 # define CPU_CAPABILITY_MMX (1<<3)
31 # define CPU_CAPABILITY_3DNOW (1<<4)
32 # define CPU_CAPABILITY_MMXEXT (1<<5)
33 # define CPU_CAPABILITY_SSE (1<<6)
34 # define CPU_CAPABILITY_SSE2 (1<<7)
35 # define CPU_CAPABILITY_SSE3 (1<<8)
36 # define CPU_CAPABILITY_SSSE3 (1<<9)
37 # define CPU_CAPABILITY_SSE4_1 (1<<10)
38 # define CPU_CAPABILITY_SSE4_2 (1<<11)
39 # define CPU_CAPABILITY_SSE4A (1<<12)
41 # define CPU_CAPABILITY_MMX (0)
42 # define CPU_CAPABILITY_3DNOW (0)
43 # define CPU_CAPABILITY_MMXEXT (0)
44 # define CPU_CAPABILITY_SSE (0)
45 # define CPU_CAPABILITY_SSE2 (0)
46 # define CPU_CAPABILITY_SSE3 (0)
47 # define CPU_CAPABILITY_SSSE3 (0)
48 # define CPU_CAPABILITY_SSE4_1 (0)
49 # define CPU_CAPABILITY_SSE4_2 (0)
50 # define CPU_CAPABILITY_SSE4A (0)
53 # if defined (__ppc__) || defined (__ppc64__) || defined (__powerpc__)
54 # define CPU_CAPABILITY_ALTIVEC (1<<16)
56 # define CPU_CAPABILITY_ALTIVEC (0)
59 # if defined (__arm__)
60 # define CPU_CAPABILITY_NEON (1<<24)
62 # define CPU_CAPABILITY_NEON (0)
65 VLC_API
unsigned vlc_CPU( void );
66 VLC_API
unsigned vlc_GetCPUCount( void );
68 /** Are floating point operations fast?
69 * If this bit is not set, you should try to use fixed-point instead.
71 # if defined (__i386__) || defined (__x86_64__)
74 # elif defined (__powerpc__) || defined (__ppc__) || defined (__ppc64__)
77 # elif defined (__arm__)
78 # define HAVE_FPU 0 /* revisit later? */
80 # elif defined (__sparc__)
88 typedef void *(*vlc_memcpy_t
) (void *tgt
, const void *src
, size_t n
);
90 VLC_API
void vlc_fastmem_register(vlc_memcpy_t cpy
);
92 #endif /* !VLC_CPU_H */