From d0ae3caca5828675335d3b19ab5dd987e7369b23 Mon Sep 17 00:00:00 2001 From: Tim Blechmann Date: Wed, 14 Jul 2004 16:21:44 +0000 Subject: This commit was generated by cvs2svn to compensate for changes in r1857, which included commits to RCS files with non-trunk default branches. svn path=/trunk/externals/tb/; revision=1858 --- sc4pd/source/Dust.cpp | 179 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 179 insertions(+) create mode 100644 sc4pd/source/Dust.cpp (limited to 'sc4pd/source/Dust.cpp') diff --git a/sc4pd/source/Dust.cpp b/sc4pd/source/Dust.cpp new file mode 100644 index 0000000..19b6312 --- /dev/null +++ b/sc4pd/source/Dust.cpp @@ -0,0 +1,179 @@ +/* sc4pd: + Dust, Dust~ + + 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: Assif Tsahar & Tatsuya Nakatani: Come Sunday +*/ + +#include +#include "SC_PlugIn.h" +#include "support.hpp" + +#if !defined(FLEXT_VERSION) || (FLEXT_VERSION < 406) +#error You need at least FLEXT version 0.4.6 +#endif + +/* ------------------------ Dust~ -------------------------------------*/ + +class Dust_ar: + public flext_dsp +{ + FLEXT_HEADER(Dust_ar,flext_dsp); + +public: + Dust_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_signalvec const * insigs, + t_signalvec const * outsigs); + + void m_set(float f) + { + m_density = f; + m_thresh = m_density/Samplerate(); + m_scale = m_thresh > 0.f ? 1.f / m_thresh : 0.f; + } + +private: + FLEXT_CALLBACK_F(m_set); + float m_density, m_thresh, m_scale; + RGen rgen; + +}; + +FLEXT_LIB_DSP_V("Dust~",Dust_ar); + +Dust_ar::Dust_ar(int argc, t_atom *argv) +{ + FLEXT_ADDMETHOD_(0,"set",m_set); + + //parse arguments + AtomList Args(argc,argv); + m_density=sc_getfloatarg(Args,0); + + rgen.init(0); //set seed to 0 + + AddOutSignal(); +} + +void Dust_ar::m_dsp(int n,t_signalvec const * insigs, + t_signalvec const * outsigs) +{ + m_thresh = m_density/Samplerate(); + m_scale = m_thresh > 0.f ? 1.f / m_thresh : 0.f; +} + +void Dust_ar::m_signal(int n, t_sample *const *in, + t_sample *const *out) +{ + t_sample *nout = *out; + + RGET; + float thresh = m_thresh; + float scale = m_scale; + + for (int i = 0; i!= n;++i) + { + float z = frand(s1,s2,s3); + if (z < thresh) + (*(nout)++) = z * scale; + else + (*(nout)++) = 0.f; + } + + RPUT; +} + + +/* ------------------------ Dust ---------------------------------------*/ + +class Dust_kr: + public flext_base +{ + FLEXT_HEADER(Dust_kr,flext_base); + +public: + Dust_kr(int argc, t_atom *argv); + +protected: + void m_set(float f); + Timer Dust_timer; + void m_doit(); + +private: + float m_density, m_scale; + float mtbt; //medium time between trigger + RGen rgen; + FLEXT_CALLBACK_1(m_set,float); + FLEXT_CALLBACK_T(m_doit); +}; + +FLEXT_LIB_V("Dust",Dust_kr); + +Dust_kr::Dust_kr(int argc, t_atom *argv) + : Dust_timer(false) +{ + FLEXT_ADDMETHOD(0,m_set); + + //parse arguments + AtomList Args(argc,argv); + m_density=sc_getfloatarg(Args,0); + + rgen.init(0); //set seed to 0 + AddOutFloat(); + + FLEXT_ADDTIMER(Dust_timer,m_doit); + + m_set(m_density); +} + +void Dust_kr::m_set(float f) +{ + Dust_timer.Reset(); + + if(f==0) + { + return; + } + m_density = f; + mtbt = 1/f*1000; + + Dust_timer.Delay(mtbt * 0.002 * rgen.frand()); +} + +void Dust_kr::m_doit() +{ + ToOutFloat(0,rgen.frand()); + + Dust_timer.Delay(mtbt * 0.002 * rgen.frand()); +} -- cgit v1.2.1