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109 lines
3.2 KiB
109 lines
3.2 KiB
/*****************************************************************************
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* vlc_cpu.h: CPU capabilities
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*****************************************************************************
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* Copyright (C) 1998-2009 VLC authors and VideoLAN
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2.1 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
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*****************************************************************************/
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/**
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* \file
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* This file provides CPU-specific optimization flags.
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*/
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#ifndef VLC_CPU_H
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# define VLC_CPU_H 1
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# if defined (__i386__) || defined (__x86_64__)
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# define CPU_CAPABILITY_MMX (1<<3)
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# define CPU_CAPABILITY_3DNOW (1<<4)
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# define CPU_CAPABILITY_MMXEXT (1<<5)
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# define CPU_CAPABILITY_SSE (1<<6)
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# define CPU_CAPABILITY_SSE2 (1<<7)
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# define CPU_CAPABILITY_SSE3 (1<<8)
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# define CPU_CAPABILITY_SSSE3 (1<<9)
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# define CPU_CAPABILITY_SSE4_1 (1<<10)
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# define CPU_CAPABILITY_SSE4_2 (1<<11)
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# define CPU_CAPABILITY_SSE4A (1<<12)
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# if defined (__MMX__)
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# define VLC_MMX
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# elif VLC_GCC_VERSION(4, 4)
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# define VLC_MMX __attribute__ ((__target__ ("mmx")))
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# else
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# define VLC_MMX VLC_MMX_is_not_implemented_on_this_compiler
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# endif
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# if defined (__SSE__)
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# define VLC_SSE
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# elif VLC_GCC_VERSION(4, 4)
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# define VLC_SSE __attribute__ ((__target__ ("sse")))
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# else
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# define VLC_SSE VLC_SSE_is_not_implemented_on_this_compiler
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# endif
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# else
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# define CPU_CAPABILITY_MMX (0)
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# define CPU_CAPABILITY_3DNOW (0)
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# define CPU_CAPABILITY_MMXEXT (0)
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# define CPU_CAPABILITY_SSE (0)
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# define CPU_CAPABILITY_SSE2 (0)
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# define CPU_CAPABILITY_SSE3 (0)
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# define CPU_CAPABILITY_SSSE3 (0)
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# define CPU_CAPABILITY_SSE4_1 (0)
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# define CPU_CAPABILITY_SSE4_2 (0)
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# define CPU_CAPABILITY_SSE4A (0)
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# endif
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# if defined (__ppc__) || defined (__ppc64__) || defined (__powerpc__)
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# define CPU_CAPABILITY_ALTIVEC (1<<16)
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# else
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# define CPU_CAPABILITY_ALTIVEC (0)
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# endif
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# if defined (__arm__)
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# define CPU_CAPABILITY_NEON (1<<24)
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# else
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# define CPU_CAPABILITY_NEON (0)
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# endif
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VLC_API unsigned vlc_CPU( void );
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/** Are floating point operations fast?
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* If this bit is not set, you should try to use fixed-point instead.
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*/
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# if defined (__i386__) || defined (__x86_64__)
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# define HAVE_FPU 1
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# elif defined (__powerpc__) || defined (__ppc__) || defined (__ppc64__)
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# define HAVE_FPU 1
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# elif defined (__arm__)
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# define HAVE_FPU 0 /* revisit later? */
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# elif defined (__sparc__)
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# define HAVE_FPU 1
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# else
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# define HAVE_FPU 0
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# endif
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typedef void *(*vlc_memcpy_t) (void *tgt, const void *src, size_t n);
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VLC_API void vlc_fastmem_register(vlc_memcpy_t cpy);
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#endif /* !VLC_CPU_H */
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