libsidplayfp
1.0.1
Main Page
Classes
Files
Examples
File List
builders
residfp-builder
residfp
resample
Resampler.h
1
/*
2
* This file is part of libsidplayfp, a SID player engine.
3
*
4
* Copyright 2011-2013 Leandro Nini <drfiemost@users.sourceforge.net>
5
* Copyright 2007-2010 Antti Lankila
6
*
7
* This program is free software; you can redistribute it and/or modify
8
* it under the terms of the GNU General Public License as published by
9
* the Free Software Foundation; either version 2 of the License, or
10
* (at your option) any later version.
11
*
12
* This program is distributed in the hope that it will be useful,
13
* but WITHOUT ANY WARRANTY; without even the implied warranty of
14
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15
* GNU General Public License for more details.
16
*
17
* You should have received a copy of the GNU General Public License
18
* along with this program; if not, write to the Free Software
19
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
20
*/
21
22
#ifndef RESAMPLER_H
23
#define RESAMPLER_H
24
25
namespace
reSIDfp
26
{
27
34
class
Resampler
35
{
36
protected
:
37
virtual
int
output()
const
= 0;
38
39
Resampler
() {}
40
41
public
:
42
virtual
~
Resampler
() {}
43
50
virtual
bool
input
(
int
sample) = 0;
51
57
short
getOutput
()
const
58
{
59
const
int
value = output();
60
61
// Clip signed integer value into the -32768,32767 range.
62
if
((value + 0x8000) & ~0xFFFF)
63
{
64
return
(value >> 31) ^ 0x7FFF;
65
}
66
else
67
{
68
return
value;
69
}
70
}
71
72
virtual
void
reset() = 0;
73
};
74
75
}
// namespace reSIDfp
76
77
#endif
Generated by
1.8.1.1