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-rw-r--r--sc4pd/source/LFClipNoise.cpp195
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+/* sc4pd
+ LFClipNoise, LFClipNoise~
+
+ Copyright (c) 2004 Tim Blechmann.
+
+ This code is derived from:
+ 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+ Based on:
+ PureData by Miller Puckette and others.
+ http://www.crca.ucsd.edu/~msp/software.html
+ FLEXT by Thomas Grill
+ http://www.parasitaere-kapazitaeten.net/ext
+ SuperCollider by James McCartney
+ http://www.audiosynth.com
+
+ Coded while listening to: Elliott Sharp: Revenge Of The Stuttering Child
+
+*/
+
+#include "sc4pd.hpp"
+
+
+/* ------------------------ LFClipNoise~ -------------------------------*/
+
+class LFClipNoise_ar:
+ public sc4pd_dsp
+{
+ FLEXT_HEADER(LFClipNoise_ar,sc4pd_dsp);
+
+public:
+ LFClipNoise_ar(int argc, t_atom *argv);
+
+protected:
+ virtual void m_signal(int n, t_sample *const *in, t_sample *const *out);
+ virtual void m_dsp(int n, t_sample *const *in, t_sample *const *out);
+
+ void m_seed(int i)
+ {
+ rgen.init(i);
+ }
+
+ void m_set(float f)
+ {
+ m_freq = f;
+ }
+
+private:
+ RGen rgen;
+ float m_freq;
+ float m_level;
+ int m_counter;
+ int m_sr;
+ FLEXT_CALLBACK_I(m_seed);
+ FLEXT_CALLBACK_F(m_set);
+};
+
+FLEXT_LIB_DSP_V("LFClipNoise~",LFClipNoise_ar);
+
+LFClipNoise_ar::LFClipNoise_ar(int argc, t_atom *argv)
+{
+ FLEXT_ADDMETHOD_(0,"seed",m_seed);
+ FLEXT_ADDMETHOD_(0,"set",m_set);
+
+ //parse arguments
+ AtomList Args(argc,argv);
+
+ m_freq = sc_getfloatarg(Args,0);
+
+ m_counter=0;
+ m_level=0;
+
+ rgen.init(timeseed());
+
+ AddOutSignal();
+}
+
+void LFClipNoise_ar::m_dsp(int n, t_sample *const *in,
+ t_sample *const *out)
+{
+ m_sr = Samplerate();
+}
+
+
+void LFClipNoise_ar::m_signal(int n, t_sample *const *in,
+ t_sample *const *out)
+{
+ t_sample *nout = *out;
+
+ float level = m_level;
+ int32 counter = m_counter;
+
+ RGET;
+
+ int remain = n;
+ do
+ {
+ if (counter<=0)
+ {
+ counter = (int)(m_sr / sc_max(m_freq, .001f));
+ counter = sc_max(1, counter);
+ level = fcoin(s1,s2,s3);
+ }
+ int nsmps = sc_min(remain, counter);
+ remain -= nsmps;
+ counter -= nsmps;
+
+ for (int i = 0; i!= nsmps;++i)
+ {
+ (*(nout)++)=level;
+ }
+ }
+ while(remain);
+
+ m_level = level;
+ m_counter = counter;
+
+ RPUT;
+}
+
+
+/* ------------------------ LFClipNoise ---------------------------------*/
+
+class LFClipNoise_kr:
+ public flext_base
+{
+ FLEXT_HEADER(LFClipNoise_kr,flext_base);
+
+public:
+ LFClipNoise_kr(int argc, t_atom *argv);
+
+protected:
+ void m_perform(void*);
+
+ void m_seed(int i)
+ {
+ rgen.init(i);
+ }
+
+ void m_set(float f)
+ {
+ double dt = sc_max(1/f, .001f);
+ m_timer.Reset();
+ m_timer.Periodic(dt);
+ }
+
+private:
+ RGen rgen;
+ Timer m_timer;
+ FLEXT_CALLBACK_I(m_seed);
+ FLEXT_CALLBACK_T(m_perform);
+ FLEXT_CALLBACK_F(m_set);
+};
+
+FLEXT_LIB_V("LFClipNoise",LFClipNoise_kr);
+
+LFClipNoise_kr::LFClipNoise_kr(int argc, t_atom *argv)
+{
+ FLEXT_ADDMETHOD_(0,"seed",m_seed);
+ FLEXT_ADDMETHOD_(0,"set",m_set);
+ FLEXT_ADDTIMER(m_timer,m_perform);
+
+ //parse arguments
+ AtomList Args(argc,argv);
+
+ double dt = sc_max(1/sc_getfloatarg(Args,0), .001f);
+
+ rgen.init(timeseed());
+
+ m_timer.Periodic(dt);
+
+ AddOutFloat();
+}
+
+void LFClipNoise_kr::m_perform(void*)
+{
+ ToOutFloat(0,rgen.fcoin());
+}