mirror of
https://github.com/mpv-player/mpv
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1ec539d353
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@3394 b3059339-0415-0410-9bf9-f77b7e298cf2
121 lines
2.6 KiB
C
121 lines
2.6 KiB
C
#include "../config.h"
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#ifdef USE_FASTMEMCPY
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/*
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aclib - advanced C library ;)
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This file contains functions which improve and expand standard C-library
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see aclib_template.c ... this file only contains runtime cpu detection and config options stuff
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runtime cpu detection by michael niedermayer (michaelni@gmx.at) is under GPL
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*/
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#include <stddef.h>
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#include "../cpudetect.h"
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#define BLOCK_SIZE 4096
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#define CONFUSION_FACTOR 0
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//Feel free to fine-tune the above 2, it might be possible to get some speedup with them :)
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//#define STATISTICS
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#ifdef ARCH_X86
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#define CAN_COMPILE_X86_ASM
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#endif
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//Note: we have MMX, MMX2, 3DNOW version there is no 3DNOW+MMX2 one
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//Plain C versions
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//#if !defined (HAVE_MMX) || defined (RUNTIME_CPUDETECT)
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//#define COMPILE_C
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//#endif
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#ifdef CAN_COMPILE_X86_ASM
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#if (defined (HAVE_MMX) && !defined (HAVE_3DNOW) && !defined (HAVE_MMX2)) || defined (RUNTIME_CPUDETECT)
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#define COMPILE_MMX
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#endif
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#if defined (HAVE_MMX2) || defined (RUNTIME_CPUDETECT)
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#define COMPILE_MMX2
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#endif
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#if (defined (HAVE_3DNOW) && !defined (HAVE_MMX2)) || defined (RUNTIME_CPUDETECT)
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#define COMPILE_3DNOW
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#endif
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#undef HAVE_MMX
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#undef HAVE_MMX2
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#undef HAVE_3DNOW
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#undef ARCH_X86
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/*
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#ifdef COMPILE_C
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#undef HAVE_MMX
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#undef HAVE_MMX2
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#undef HAVE_3DNOW
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#undef ARCH_X86
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#define RENAME(a) a ## _C
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#include "aclib_template.c"
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#endif
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*/
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//MMX versions
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#ifdef COMPILE_MMX
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#undef RENAME
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#define HAVE_MMX
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#undef HAVE_MMX2
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#undef HAVE_3DNOW
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#define ARCH_X86
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#define RENAME(a) a ## _MMX
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#include "aclib_template.c"
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#endif
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//MMX2 versions
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#ifdef COMPILE_MMX2
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#undef RENAME
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#define HAVE_MMX
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#define HAVE_MMX2
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#undef HAVE_3DNOW
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#define ARCH_X86
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#define RENAME(a) a ## _MMX2
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#include "aclib_template.c"
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#endif
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//3DNOW versions
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#ifdef COMPILE_3DNOW
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#undef RENAME
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#define HAVE_MMX
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#undef HAVE_MMX2
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#define HAVE_3DNOW
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#define ARCH_X86
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#define RENAME(a) a ## _3DNow
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#include "aclib_template.c"
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#endif
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#endif // CAN_COMPILE_X86_ASM
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inline void * fast_memcpy(void * to, const void * from, size_t len)
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{
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#ifdef RUNTIME_CPUDETECT
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#ifdef CAN_COMPILE_X86_ASM
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// ordered per speed fasterst first
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if(gCpuCaps.hasMMX2)
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fast_memcpy_MMX2(to, from, len);
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else if(gCpuCaps.has3DNow)
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fast_memcpy_3DNow(to, from, len);
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else if(gCpuCaps.hasMMX)
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fast_memcpy_MMX(to, from, len);
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else
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#endif //CAN_COMPILE_X86_ASM
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memcpy(to, from, len); // prior to mmx we use the standart memcpy
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#else
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#ifdef HAVE_MMX2
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fast_memcpy_MMX2(to, from, len);
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#elif defined (HAVE_3DNOW)
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fast_memcpy_3DNow(to, from, len);
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#elif defined (HAVE_MMX)
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fast_memcpy_MMX(to, from, len);
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#else
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memcpy(to, from, len); // prior to mmx we use the standart memcpy
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#endif
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#endif //!RUNTIME_CPUDETECT
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}
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#endif /* use fastmemcpy */ |