45 lines
1.1 KiB
C
45 lines
1.1 KiB
C
|
/*
|
|||
|
|
==============================================================================
|
|||
|
|
This file is part of Obxd synthesizer.
|
|||
|
|
|
|||
|
|
Copyright <EFBFBD> 2013-2014 Filatov Vadim
|
|||
|
|
|
|||
|
|
Contact author via email :
|
|||
|
|
justdat_@_e1.ru
|
|||
|
|
|
|||
|
|
This file may be licensed under the terms of of the
|
|||
|
|
GNU General Public License Version 2 (the ``GPL'').
|
|||
|
|
|
|||
|
|
Software distributed under the License is distributed
|
|||
|
|
on an ``AS IS'' basis, WITHOUT WARRANTY OF ANY KIND, either
|
|||
|
|
express or implied. See the GPL for the specific language
|
|||
|
|
governing rights and limitations.
|
|||
|
|
|
|||
|
|
You should have received a copy of the GPL along with this
|
|||
|
|
program. If not, go to http://www.gnu.org/licenses/gpl.html
|
|||
|
|
or write to the Free Software Foundation, Inc.,
|
|||
|
|
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|||
|
|
==============================================================================
|
|||
|
|
*/
|
|||
|
|
#pragma once
|
|||
|
|
#include "SynthEngine.h"
|
|||
|
|
class ApInterpolator
|
|||
|
|
{
|
|||
|
|
private:
|
|||
|
|
const float Nu;
|
|||
|
|
float zd;
|
|||
|
|
float li;
|
|||
|
|
public :
|
|||
|
|
ApInterpolator() : Nu(( 1 - 0.5) /(1 + 0.5))
|
|||
|
|
{
|
|||
|
|
zd = 0;
|
|||
|
|
li=0;
|
|||
|
|
};
|
|||
|
|
inline float getInterp(float in)
|
|||
|
|
{
|
|||
|
|
float out = Nu * ( in - zd) + li;
|
|||
|
|
zd = out;
|
|||
|
|
li = in;
|
|||
|
|
return out;
|
|||
|
|
}
|
|||
|
|
};
|