48 lines
1.4 KiB
C++
48 lines
1.4 KiB
C++
// Copyright 2004 David Hilvert <dhilvert@auricle.dyndns.org>,
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// <dhilvert@ugcs.caltech.edu>
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/* This file is part of the Anti-Lamenessing Engine.
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The Anti-Lamenessing Engine is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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The Anti-Lamenessing Engine is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with the Anti-Lamenessing Engine; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef __filterclass_h__
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#define __filterclass_h__
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/*
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* A superclass for all filtering classes.
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*/
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class filter {
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public:
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/*
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* Size of filter support, in number of half-cycles to each side of the
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* filter center.
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*/
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virtual ale_pos support() const = 0;
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/*
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* Response of filter at point p
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*/
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virtual ale_real response(point p) const = 0;
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virtual int equals(const filter *f) const = 0;
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virtual ~filter(){
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}
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};
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#endif
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