You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
71 lines
1.7 KiB
71 lines
1.7 KiB
/*
|
|
|
|
Copyright (C) 2000 Stefan Westerfeld
|
|
stefan@space.twc.de
|
|
|
|
This library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Library General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2 of the License, or (at your option) any later version.
|
|
|
|
This library 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
|
|
Library General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Library General Public License
|
|
along with this library; see the file COPYING.LIB. If not, write to
|
|
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
|
|
Boston, MA 02110-1301, USA.
|
|
|
|
*/
|
|
|
|
#include "artsflow.h"
|
|
#include "stdsynthmodule.h"
|
|
#include <math.h>
|
|
#include <stdio.h>
|
|
|
|
using namespace Arts;
|
|
|
|
namespace Arts {
|
|
|
|
class Synth_FREQUENCY_impl :public Synth_FREQUENCY_skel, public StdSynthModule
|
|
{
|
|
float fpos;
|
|
public:
|
|
void streamInit() {
|
|
fpos = 0;
|
|
}
|
|
void calculateBlock(unsigned long cycles) {
|
|
float fsample = samplingRateFloat;
|
|
float finc = *frequency/fsample;
|
|
|
|
while(cycles)
|
|
{
|
|
if(cycles >= 8 && ((finc*8+fpos) < 0.9))
|
|
{
|
|
fpos += finc; *pos++ = fpos;
|
|
fpos += finc; *pos++ = fpos;
|
|
fpos += finc; *pos++ = fpos;
|
|
fpos += finc; *pos++ = fpos;
|
|
fpos += finc; *pos++ = fpos;
|
|
fpos += finc; *pos++ = fpos;
|
|
fpos += finc; *pos++ = fpos;
|
|
fpos += finc; *pos++ = fpos;
|
|
cycles -= 8;
|
|
}
|
|
else
|
|
{
|
|
fpos += finc;
|
|
fpos -= floor(fpos);
|
|
*pos++ = fpos;
|
|
cycles--;
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
REGISTER_IMPLEMENTATION(Synth_FREQUENCY_impl);
|
|
|
|
}
|