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ringbuffer.h 1.95 KiB
/*
* Copyright (C) 2004-2005 Savoir-Faire Linux inc.
* Author: Yan Morin <yan.morin@savoirfairelinux.com>
* Author : Laurielle Lea <laurielle.lea@savoirfairelinux.com>
*
* Portions Copyright (C) Dominic Mazzoni (Audacity)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* 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 __RING_BUFFER__
#define __RING_BUFFER__
typedef unsigned char* samplePtr;
class RingBuffer {
public:
RingBuffer(int size);
~RingBuffer();
// To set counters to 0
void flush (void);
//
// For the writer only:
//
int AvailForPut (void) const;
int Put (void*, int, unsigned short volume = 100);
//
// For the reader only:
//
int AvailForGet (void) const;
int Get (void *, int, unsigned short volume = 100);
int Discard(int);
int Len() const;
/**
* Debug function print mEnd, mStart, mBufferSize
*/
void debug();
private:
int mStart;
int mEnd;
int mBufferSize;
samplePtr mBuffer;
};
#endif /* __RING_BUFFER__ */