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precise macosx timer by Dan Christiansen <danchr@daimi.au.dk> and 10l fix by me 

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@9466 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
alex 2003-02-19 17:22:02 +00:00
parent 33f8a3911f
commit 1e7289e890
2 changed files with 73 additions and 2 deletions
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11
osdep/Makefile
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@ -3,8 +3,7 @@ include ../config.mak
LIBNAME = libosdep.a
SRCS=getch2.c timer-lx.c shmem.c strsep.c vsscanf.c scandir.c # timer.c
OBJS=$(SRCS:.c=.o)
SRCS=getch2.c shmem.c strsep.c vsscanf.c scandir.c # timer.c
ifeq ($(TARGET_ARCH_X86),yes)
ifeq ($(TARGET_OS),Linux)
@ -12,6 +11,14 @@ SRCS += lrmi.c vbelib.c
endif
endif
ifeq ($(MACOSX),yes)
SRCS += timer-macosx.c
else
SRCS += timer-lx.c
endif
OBJS=$(SRCS:.c=.o)
CFLAGS = $(OPTFLAGS) -I. -I.. $(EXTRA_INC)
# -I/usr/X11R6/include/

64
osdep/timer-macosx.c Normal file
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@ -0,0 +1,64 @@
/*
* Semi-precise timer routines using CoreFoundation
*
* (C) 2003 Dan Christiansen
*
* Released into the public domain.
*/
#include <unistd.h>
#include <stdlib.h>
#include <time.h>
#include <sys/time.h>
#include "../config.h"
#ifdef MACOSX
# include <CoreFoundation/CFRunLoop.h>
#endif
/* Rather than using CF timers, we simply store the absolute time
* CFAbsoluteTime == double */
static CFAbsoluteTime relative_time;
int usec_sleep(int usec_delay)
{
CFRunLoopRunInMode(kCFRunLoopDefaultMode, usec_delay / 1000000.0, false);
}
// Returns current time in microseconds
unsigned int GetTimer(){
return (unsigned int)(CFAbsoluteTimeGetCurrent() * 1000000);
}
// Returns current time in milliseconds
unsigned int GetTimerMS(){
return (unsigned int)(CFAbsoluteTimeGetCurrent() * 1000);
}
// Returns time spent between now and last call in seconds
float GetRelativeTime(){
CFAbsoluteTime last_time = relative_time;
relative_time = CFAbsoluteTimeGetCurrent();
return (float)(relative_time - last_time);
}
// Initialize timer, must be called at least once at start
void InitTimer(){
GetRelativeTime();
}
#if 0
int main() {
int i;
for (i = 0; i < 20; i++) {
printf("CF relative time:\t%f\n", GetRelativeTime());
usec_sleep(1000000);
printf("usleep relative time:\t%f\n", GetRelativeTime());
usleep(1000000);
}
}
#endif