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Split libavutil/timer.h per architecture

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Originally committed as revision 18304 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Måns Rullgård
2009-04-01 22:56:22 +00:00
parent 0a47f60aa8
commit 439ccc4e0e
4 changed files with 132 additions and 44 deletions
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41
libavutil/bfin/timer.h Normal file
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@@ -0,0 +1,41 @@
/*
* Copyright (C) 2007 Marc Hoffman
*
* This file is part of FFmpeg.
*
* FFmpeg 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,
* 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
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVUTIL_BFIN_TIMER_H
#define AVUTIL_BFIN_TIMER_H
#include <stdint.h>
#define AV_READ_TIME read_time
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;
}
#endif /* AVUTIL_BFIN_TIMER_H */

47
libavutil/ppc/timer.h Normal file
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@@ -0,0 +1,47 @@
/*
* Copyright (c) 2005 Luca Barbato <lu_zero@gentoo.org>
*
* This file is part of FFmpeg.
*
* FFmpeg 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,
* 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
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVUTIL_PPC_TIMER_H
#define AVUTIL_PPC_TIMER_H
#include <stdint.h>
#define AV_READ_TIME read_time
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;
}
#endif /* AVUTIL_PPC_TIMER_H */

53
libavutil/timer.h
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@@ -28,51 +28,16 @@
#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;
}
#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;
}
#if ARCH_BFIN
# 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

35
libavutil/x86/timer.h Normal file
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@@ -0,0 +1,35 @@
/*
* copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
*
* This file is part of FFmpeg.
*
* FFmpeg 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,
* 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
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVUTIL_X86_TIMER_H
#define AVUTIL_X86_TIMER_H
#include <stdint.h>
#define AV_READ_TIME read_time
static inline uint64_t read_time(void)
{
uint32_t a, d;
__asm__ volatile("rdtsc" : "=a" (a), "=d" (d));
return ((uint64_t)d << 32) + a;
}
#endif /* AVUTIL_X86_TIMER_H */