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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/FX/AUD_CallbackIIRFilterReader.h
* \ingroup audfx
*/
#ifndef __AUD_CALLBACKIIRFILTERREADER_H__
#define __AUD_CALLBACKIIRFILTERREADER_H__
#include "AUD_BaseIIRFilterReader.h"
#include "AUD_Buffer.h"
class AUD_CallbackIIRFilterReader;
typedef sample_t (*doFilterIIR)(AUD_CallbackIIRFilterReader*, void*);
typedef void (*endFilterIIR)(void*);
/**
* This class provides an interface for infinite impulse response filters via a
* callback filter function.
*/
class AUD_CallbackIIRFilterReader : public AUD_BaseIIRFilterReader
{
private:
/**
* Filter function.
*/
const doFilterIIR m_filter;
/**
* End filter function.
*/
const endFilterIIR m_endFilter;
/**
* Data pointer.
*/
void* m_data;
// hide copy constructor and operator=
AUD_CallbackIIRFilterReader(const AUD_CallbackIIRFilterReader&);
AUD_CallbackIIRFilterReader& operator=(const AUD_CallbackIIRFilterReader&);
public:
/**
* Creates a new callback IIR filter reader.
* \param reader The reader to read from.
* \param in The count of past input samples needed.
* \param out The count of past output samples needed.
* \param doFilter The filter callback.
* \param endFilter The finishing callback.
* \param data Data pointer for the callbacks.
*/
AUD_CallbackIIRFilterReader(boost::shared_ptr<AUD_IReader> reader, int in, int out,
doFilterIIR doFilter,
endFilterIIR endFilter = 0,
void* data = NULL);
virtual ~AUD_CallbackIIRFilterReader();
virtual sample_t filter();
};
#endif //__AUD_CALLBACKIIRFILTERREADER_H__
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