include/vlc_cpu.h

   1 /*****************************************************************************
   2  * vlc_cpu.h: CPU capabilities
   3  *****************************************************************************
   4  * Copyright (C) 1998-2009 the VideoLAN team
   5  *
   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.
  10  *
  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.
  15  *
  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  *****************************************************************************/
  20
  21 /**
  22  * \file
  23  * This file provides CPU-specific optimization flags.
  24  */
  25
  26 #ifndef VLC_CPU_H
  27 # define VLC_CPU_H 1
  28
  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)
  40 # else
  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)
  51 # endif
  52
  53 # if defined (__ppc__) || defined (__ppc64__) || defined (__powerpc__)
  54 #  define CPU_CAPABILITY_ALTIVEC (1<<16)
  55 # else
  56 #  define CPU_CAPABILITY_ALTIVEC (0)
  57 # endif
  58
  59 # if defined (__arm__)
  60 #  define CPU_CAPABILITY_NEON    (1<<24)
  61 # else
  62 #  define CPU_CAPABILITY_NEON    (0)
  63 # endif
  64
  65 VLC_API unsigned vlc_CPU( void );
  66
  67 /** Are floating point operations fast?
  68  * If this bit is not set, you should try to use fixed-point instead.
  69  */
  70 # if defined (__i386__) || defined (__x86_64__)
  71 #  define HAVE_FPU 1
  72
  73 # elif defined (__powerpc__) || defined (__ppc__) || defined (__ppc64__)
  74 #  define HAVE_FPU 1
  75
  76 # elif defined (__arm__)
  77 #  define HAVE_FPU 0 /* revisit later? */
  78
  79 # elif defined (__sparc__)
  80 #  define HAVE_FPU 1
  81
  82 # else
  83 #  define HAVE_FPU 0
  84
  85 # endif
  86
  87 typedef void *(*vlc_memcpy_t) (void *tgt, const void *src, size_t n);
  88
  89 VLC_API void vlc_fastmem_register(vlc_memcpy_t cpy);
  90
  91 #endif /* !VLC_CPU_H */
  92