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
|
/*
SuperCollider real time audio synthesis system
Copyright (c) 2002 James McCartney. All rights reserved.
http://www.audiosynth.com
This program 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.
This program 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 this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "SC_Rate.h"
#include "SC_Constants.h"
#include "SC_Prototypes.h"
void Rate_Init(Rate *inRate, double inSampleRate, int inBufLength)
{
inRate->mSampleRate = inSampleRate;
inRate->mSampleDur = 1. / inRate->mSampleRate;
inRate->mRadiansPerSample = twopi / inRate->mSampleRate;
inRate->mBufLength = inBufLength;
inRate->mBufDuration = inRate->mBufLength / inRate->mSampleRate;
inRate->mBufRate = 1. / inRate->mBufDuration;
inRate->mSlopeFactor = 1. / inRate->mBufLength;
inRate->mFilterLoops = inRate->mBufLength / 3;
inRate->mFilterRemain = inRate->mBufLength % 3;
if( inRate->mFilterLoops == 0. )
inRate->mFilterSlope = 0.;
else
inRate->mFilterSlope = 1. / inRate->mFilterLoops;
}
|
