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/*
flext - C++ layer for Max/MSP and pd (pure data) externals
Copyright (c) 2001-2003 Thomas Grill (xovo@gmx.net)
For information on usage and redistribution, and for a DISCLAIMER OF ALL
WARRANTIES, see the file, "license.txt," in this distribution.
*/
/*! \file flutil.cpp
\brief Implementation of the various utility functions.
*/
#include "flext.h"
#include <string.h>
#if FLEXT_OS == FLEXT_OS_WIN
#include <windows.h>
#elif FLEXT_OS == FLEXT_OS_LINUX || FLEXT_OS == FLEXT_OS_IRIX || FLEXT_OSAPI == FLEXT_OSAPI_MAC_OSX
#include <unistd.h>
#elif FLEXT_OS == FLEXT_OS_MAC
#include <Timer.h>
#include <Threads.h>
#endif
void flext::CopyMem(void *dst,const void *src,int bytes)
{
memcpy(dst,src,bytes);
}
void flext::ZeroMem(void *dst,int bytes)
{
memset(dst,0,bytes);
}
void flext::CopySamples(t_sample *dst,const t_sample *src,int cnt)
{
int n = cnt>>3;
cnt -= n<<3;
while(n--) {
dst[0] = src[0]; dst[1] = src[1];
dst[2] = src[2]; dst[3] = src[3];
dst[4] = src[4]; dst[5] = src[5];
dst[6] = src[6]; dst[7] = src[7];
src += 8,dst += 8;
}
while(cnt--) *(dst++) = *(src++);
}
void flext::SetSamples(t_sample *dst,int cnt,t_sample s)
{
int n = cnt>>3;
cnt -= n<<3;
while(n--) {
dst[0] = dst[1] = dst[2] = dst[3] = dst[4] = dst[5] = dst[6] = dst[7] = s;
dst += 8;
}
while(cnt--) *(dst++) = s;
}
void flext::Sleep(double s)
{
#if FLEXT_OS == FLEXT_OS_WIN
::Sleep((long)(s*1000.));
#elif FLEXT_OS == FLEXT_OS_LINUX || FLEXT_OS == FLEXT_OS_IRIX || FLEXT_OSAPI == FLEXT_OSAPI_MAC_OSX
usleep((long)(s*1000000.));
#elif FLEXT_OS == FLEXT_OS_MAC
// that's just for OS9!
UnsignedWide tick;
Microseconds(&tick);
double target = tick.hi*((double)(1L<<((sizeof tick.lo)*4))*(double)(1L<<((sizeof tick.lo)*4)))+tick.lo+s*1.e6;
for(;;) {
Microseconds(&tick);
if(target <= tick.hi*((double)(1L<<((sizeof tick.lo)*4))*(double)(1L<<((sizeof tick.lo)*4)))+tick.lo) break;
YieldToAnyThread(); // should we really yield?
}
#else
#error
#endif
}
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