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//=============================================================================
// MusE
// Linux Music Editor
// $Id:$
//
// Copyright (C) 2002-2006 by Werner Schweer and others
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License version 2.
//
// This program 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
//=============================================================================
#ifndef __AUDIOPREFETCH_H__
#define __AUDIOPREFETCH_H__
#include "thread.h"
#include "fifo.h"
//---------------------------------------------------------
// AudioPrefetch
//---------------------------------------------------------
class AudioPrefetch : public Thread {
Fifo1 fifo;
unsigned writePos;
unsigned seekPos; // remember last seek to optimize seeks
virtual void processMsg1(const void*);
void prefetch(bool seekFlag);
void seek(unsigned pos);
volatile int seekCount;
public:
AudioPrefetch(const char* name);
~AudioPrefetch();
virtual void start(int);
void msgTick();
void msgSeek(unsigned pos);
bool seekDone() const { return seekCount == 0; }
Fifo1* getFifo() { return &fifo; }
};
extern AudioPrefetch* audioPrefetch;
#endif
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