1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
/*
* ***** 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(boost::shared_ptr<AUD_IFactory> factory,
bool additive) :
AUD_EffectFactory(factory),
m_additive(additive)
{
}
boost::shared_ptr<AUD_IReader> AUD_AccumulatorFactory::createReader()
{
return boost::shared_ptr<AUD_IReader>(new AUD_CallbackIIRFilterReader(getReader(), 2, 2,
m_additive ? accumulatorFilterAdditive : accumulatorFilter));
}
|
