/*

	Steinberg Audio Stream I/O API

	(c) 1996, Steinberg Soft- und Hardware GmbH

	charlie (May 1996)



	asiosmpl.cpp

	

	sample implementation of asio.

	time manager irq

	**** mac os specific ****

*/



#include <macheaders.h>

#include <Timer.h>

#include <string.h>

#include "asiosmpl.h"



static TMTask myTmTask;

static bool tmTaskOn = false;

static AsioSample *theSound = 0;



void myTimer();

void myTimer()

{

	if(theSound)

		theSound->bufferSwitch();

	PrimeTime((QElemPtr)&myTmTask, theSound->milliSeconds);

}



void AsioSample::timerOn()

{

	theSound = this;	// for irq

	if(!tmTaskOn)

	{

		memset(&myTmTask, 0, sizeof(TMTask));

		myTmTask.tmAddr = NewTimerProc(myTimer);

		myTmTask.tmWakeUp = 0;

		tmTaskOn = true;

		InsXTime((QElemPtr)&myTmTask);

		PrimeTime((QElemPtr)&myTmTask, theSound->milliSeconds);

	}

}



void AsioSample::timerOff()

{

	if(tmTaskOn)

	{

		RmvTime((QElemPtr)&myTmTask);

		tmTaskOn = false;

	}

	theSound = 0;

}