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/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* Copyright 2009-2011 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* Audaspace 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 2 of the License, or
* (at your option) any later version.
*
* AudaSpace 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 Audaspace; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file audaspace/intern/AUD_Buffer.h
* \ingroup audaspaceintern
*/
#ifndef __AUD_BUFFER_H__
#define __AUD_BUFFER_H__
#include "AUD_Space.h"
/**
* This class is a simple buffer in RAM which is 16 Byte aligned and provides
* resize functionality.
*/
class AUD_Buffer
{
private:
/// The size of the buffer in bytes.
int m_size;
/// The pointer to the buffer memory.
data_t* m_buffer;
// hide copy constructor and operator=
AUD_Buffer(const AUD_Buffer&);
AUD_Buffer& operator=(const AUD_Buffer&);
public:
/**
* Creates a new buffer.
* \param size The size of the buffer in bytes.
*/
AUD_Buffer(int size = 0);
/**
* Destroys the buffer.
*/
~AUD_Buffer();
/**
* Returns the pointer to the buffer in memory.
*/
sample_t* getBuffer() const;
/**
* Returns the size of the buffer in bytes.
*/
int getSize() const;
/**
* Resizes the buffer.
* \param size The new size of the buffer, measured in bytes.
* \param keep Whether to keep the old data. If the new buffer is smaller,
* the data at the end will be lost.
*/
void resize(int size, bool keep = false);
/**
* Makes sure the buffer has a minimum size.
* If size is >= current size, nothing will happen.
* Otherwise the buffer is resized with keep as parameter.
* \param size The new minimum size of the buffer, measured in bytes.
* \param keep Whether to keep the old data. If the new buffer is smaller,
* the data at the end will be lost.
*/
void assureSize(int size, bool keep = false);
};
#endif //__AUD_BUFFER_H__
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