repositories / deb_ffmpeg.git / blame
| Commit | Line | Data |
|---|---|---|
| 2ba45a60 DM |
1 | /* |
| 2 | * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at> | |
| 3 | * | |
| 4 | * This file is part of FFmpeg. | |
| 5 | * | |
| 6 | * FFmpeg is free software; you can redistribute it and/or | |
| 7 | * modify it under the terms of the GNU Lesser General Public | |
| 8 | * License as published by the Free Software Foundation; either | |
| 9 | * version 2.1 of the License, or (at your option) any later version. | |
| 10 | * | |
| 11 | * FFmpeg 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 GNU | |
| 14 | * Lesser General Public License for more details. | |
| 15 | * | |
| 16 | * You should have received a copy of the GNU Lesser General Public | |
| 17 | * License along with FFmpeg; if not, write to the Free Software | |
| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| 19 | */ | |
| 20 | ||
| 21 | #ifndef AVUTIL_X86_TIMER_H | |
| 22 | #define AVUTIL_X86_TIMER_H | |
| 23 | ||
| 24 | #include <stdint.h> | |
| 25 | ||
| 26 | #if HAVE_INLINE_ASM | |
| 27 | ||
| 28 | #define FF_TIMER_UNITS "decicycles" | |
| 29 | #define AV_READ_TIME read_time | |
| 30 | ||
| 31 | static inline uint64_t read_time(void) | |
| 32 | { | |
| 33 | uint32_t a, d; | |
| 34 | __asm__ volatile("rdtsc" : "=a" (a), "=d" (d)); | |
| 35 | return ((uint64_t)d << 32) + a; | |
| 36 | } | |
| 37 | ||
| 38 | #elif HAVE_RDTSC | |
| 39 | ||
| 40 | #include <intrin.h> | |
| 41 | #define AV_READ_TIME __rdtsc | |
| 42 | ||
| 43 | #endif /* HAVE_INLINE_ASM */ | |
| 44 | ||
| 45 | #endif /* AVUTIL_X86_TIMER_H */ |