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git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/trunk/lmms@414 0778d3d1-df1d-0410-868b-ea421aaaa00d
82 lines
1.7 KiB
C++
82 lines
1.7 KiB
C++
/*
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White.cc
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Copyright 2004-5 Tim Goetze <tim@quitte.de>
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http://quitte.de/dsp/
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white noise generation.
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*/
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/*
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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02111-1307, USA or point your web browser to http://www.gnu.org.
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*/
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#include "basics.h"
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#include "White.h"
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#include "Descriptor.h"
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template <sample_func_t F>
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void
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White::one_cycle (int frames)
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{
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double g = (gain == *ports[0]) ?
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1 : pow (*ports[0] / gain, 1. / (double) frames);
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d_sample * d = ports[1];
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for (int i = 0; i < frames; ++i)
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{
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F (d, i, gain * white.get(), adding_gain);
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gain *= g;
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}
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gain = *ports[0];
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}
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/* //////////////////////////////////////////////////////////////////////// */
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PortInfo
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White::port_info [] =
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{
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{
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"volume",
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INPUT | CONTROL,
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{BOUNDED | DEFAULT_MID, MIN_GAIN, 1}
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}, {
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"out",
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OUTPUT | AUDIO,
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{0}
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}
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};
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template <> void
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Descriptor<White>::setup()
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{
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UniqueID = 1785;
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Label = "White";
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Properties = HARD_RT;
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Name = "CAPS: White - White noise generator";
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Maker = "Tim Goetze <tim@quitte.de>";
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Copyright = "GPL, 2004-5";
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/* fill port info and vtable */
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autogen();
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}
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