-/**
- * @file libavutil/timer.h
- * high precision timer, useful to profile code
- *
+/*
* copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+/**
+ * @file
+ * high precision timer, useful to profile code
+ */
+
#ifndef AVUTIL_TIMER_H
#define AVUTIL_TIMER_H
#include <stdint.h>
#include "config.h"
-#if ARCH_X86 || ARCH_PPC || ARCH_BFIN
-#define AV_READ_TIME read_time
-#if ARCH_X86
-static inline uint64_t read_time(void)
-{
- uint32_t a, d;
- __asm__ volatile("rdtsc\n\t"
- : "=a" (a), "=d" (d));
- return ((uint64_t)d << 32) + a;
-}
+#if ARCH_ARM
+# include "arm/timer.h"
#elif ARCH_BFIN
-static inline uint64_t read_time(void)
-{
- union {
- struct {
- unsigned lo;
- unsigned hi;
- } p;
- unsigned long long c;
- } t;
- __asm__ volatile ("%0=cycles; %1=cycles2;" : "=d" (t.p.lo), "=d" (t.p.hi));
- return t.c;
-}
-#else //FIXME check ppc64
-static inline uint64_t read_time(void)
-{
- uint32_t tbu, tbl, temp;
-
- /* from section 2.2.1 of the 32-bit PowerPC PEM */
- __asm__ volatile(
- "1:\n"
- "mftbu %2\n"
- "mftb %0\n"
- "mftbu %1\n"
- "cmpw %2,%1\n"
- "bne 1b\n"
- : "=r"(tbl), "=r"(tbu), "=r"(temp)
- :
- : "cc");
-
- return (((uint64_t)tbu)<<32) | (uint64_t)tbl;
-}
+# include "bfin/timer.h"
+#elif ARCH_PPC
+# include "ppc/timer.h"
+#elif ARCH_X86
+# include "x86/timer.h"
#endif
-#elif HAVE_GETHRTIME
-#define AV_READ_TIME gethrtime
+
+#if !defined(AV_READ_TIME) && HAVE_GETHRTIME
+# define AV_READ_TIME gethrtime
#endif
#ifdef AV_READ_TIME