diff options
Diffstat (limited to 'src/xine-utils/memcpy.c')
| -rw-r--r-- | src/xine-utils/memcpy.c | 24 |
1 files changed, 21 insertions, 3 deletions
diff --git a/src/xine-utils/memcpy.c b/src/xine-utils/memcpy.c index cea2b5b0b..515919a41 100644 --- a/src/xine-utils/memcpy.c +++ b/src/xine-utils/memcpy.c @@ -1,4 +1,4 @@ -/* +;/* * Copyright (C) 2001-2004 the xine project * * This file is part of xine, a free video player. @@ -403,11 +403,23 @@ static const struct { { "ppcasm", ppcasm_memcpy, 0 }, { "ppcasm_cached", ppcasm_cacheable_memcpy, MM_ACCEL_PPC_CACHE32 }, #endif /* ARCH_PPC && !HOST_OS_DARWIN */ + { "", NULL, 0 } }; static uint64_t memcpy_timing[sizeof(memcpy_method)/sizeof(memcpy_method[0])] = { 0, }; -#if (defined(ARCH_X86) || defined(ARCH_X86_64)) && defined(HAVE_SYS_TIMES_H) +#ifdef HAVE_POSIX_TIMERS +/* Prefer clock_gettime() where available. */ +static int64_t _x_gettime(void) +{ + struct timespec tm; + return (clock_gettime (CLOCK_THREAD_CPUTIME_ID, &tm) == -1) + ? times (NULL) + : (int64_t)tm.tv_sec * 1e9 + tm.tv_nsec; +} +# define rdtsc(x) _x_gettime() + +#elif (defined(ARCH_X86) || defined(ARCH_X86_64)) && defined(HAVE_SYS_TIMES_H) static int64_t rdtsc(int config_flags) { int64_t x; @@ -510,7 +522,13 @@ void xine_probe_fast_memcpy(xine_t *xine) memset(buf1,0,BUFSIZE); memset(buf2,0,BUFSIZE); - for(i = 1; i < sizeof(memcpy_method)/sizeof(memcpy_method[0]); i++) + /* some initial activity to ensure that we're not running slowly :-) */ + for(j=0;j<50;j++) { + memcpy_method[1].function(buf2,buf1,BUFSIZE); + memcpy_method[1].function(buf1,buf2,BUFSIZE); + } + + for(i=1; memcpy_method[i].name[0]; i++) { if( (config_flags & memcpy_method[i].cpu_require) != memcpy_method[i].cpu_require ) |