forked from bartvdbraak/blender
65 lines
1.9 KiB
C++
65 lines
1.9 KiB
C++
/*
|
|
* ***** 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_AccumulatorFactory.cpp
|
|
* \ingroup audfx
|
|
*/
|
|
|
|
|
|
#include "AUD_AccumulatorFactory.h"
|
|
#include "AUD_CallbackIIRFilterReader.h"
|
|
|
|
sample_t AUD_AccumulatorFactory::accumulatorFilterAdditive(AUD_CallbackIIRFilterReader* reader, void* useless)
|
|
{
|
|
float in = reader->x(0);
|
|
float lastin = reader->x(-1);
|
|
float out = reader->y(-1) + in - lastin;
|
|
if(in > lastin)
|
|
out += in - lastin;
|
|
return out;
|
|
}
|
|
|
|
sample_t AUD_AccumulatorFactory::accumulatorFilter(AUD_CallbackIIRFilterReader* reader, void* useless)
|
|
{
|
|
float in = reader->x(0);
|
|
float lastin = reader->x(-1);
|
|
float out = reader->y(-1);
|
|
if(in > lastin)
|
|
out += in - lastin;
|
|
return out;
|
|
}
|
|
|
|
AUD_AccumulatorFactory::AUD_AccumulatorFactory(AUD_Reference<AUD_IFactory> factory,
|
|
bool additive) :
|
|
AUD_EffectFactory(factory),
|
|
m_additive(additive)
|
|
{
|
|
}
|
|
|
|
AUD_Reference<AUD_IReader> AUD_AccumulatorFactory::createReader()
|
|
{
|
|
return new AUD_CallbackIIRFilterReader(getReader(), 2, 2,
|
|
m_additive ? accumulatorFilterAdditive : accumulatorFilter);
|
|
}
|