diff options
author | Tim Blechmann <timblech@users.sourceforge.net> | 2004-07-14 16:21:44 +0000 |
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committer | IOhannes m zmölnig <zmoelnig@iem.at> | 2015-10-14 15:11:54 +0200 |
commit | d0ae3caca5828675335d3b19ab5dd987e7369b23 (patch) | |
tree | ffb89eb98dc91b1c1b471d2c221f18dafbfb48a6 /sc4pd/source/Crackle.cpp | |
parent | e0775c6066f90ece58bf84326ab7180cb6c3d539 (diff) |
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
Diffstat (limited to 'sc4pd/source/Crackle.cpp')
-rw-r--r-- | sc4pd/source/Crackle.cpp | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/sc4pd/source/Crackle.cpp b/sc4pd/source/Crackle.cpp new file mode 100644 index 0000000..a86ea18 --- /dev/null +++ b/sc4pd/source/Crackle.cpp @@ -0,0 +1,161 @@ +/* sc4pd + Crackle, Crackle~ + + 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: David S. Ware: Threads + +*/ + +#include <flext.h> +#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 + + +/* ------------------------ Crackle~ -------------------------------*/ + +class Crackle_ar: + public flext_dsp +{ + FLEXT_HEADER(Crackle_ar,flext_dsp); + +public: + Crackle_ar(int argc, t_atom *argv); + +protected: + virtual void m_signal(int n, t_sample *const *in, t_sample *const *out); + + void m_set(float f) + { + m_paramf = f; + } + +private: + FLEXT_CALLBACK_F(m_set); + float m_paramf; + float m_y1, m_y2; +}; + +FLEXT_LIB_DSP_V("Crackle~",Crackle_ar); + +Crackle_ar::Crackle_ar(int argc, t_atom *argv) + : m_y1(0.3f),m_y2(0.f) +{ + FLEXT_ADDMETHOD_(0,"set",m_set); + //parse arguments + AtomList Args(argc,argv); + m_paramf=sc_getfloatarg(Args,0); + + if (m_paramf == 0) + m_paramf = 1; + + AddOutSignal(); +} + + +void Crackle_ar::m_signal(int n, t_sample *const *in, + t_sample *const *out) +{ + t_sample *nout = *out; + + float paramf = m_paramf; + float y1 = m_y1; + float y2 = m_y2; + float y0; + + for (int i = 0; i!= n;++i) + { + (*(nout)++) = y0 = fabs(y1 * paramf - y2 - 0.05f); + y2 = y1; + y1 = y0; + } + + m_y1=y1; + m_y2=y2; +} + + +/* ------------------------ Crackle ---------------------------------*/ + +class Crackle_kr: + public flext_base +{ + FLEXT_HEADER(Crackle_kr,flext_base); + +public: + Crackle_kr(int argc, t_atom *argv); + +protected: + void m_perform(); + + void m_set(float f) + { + m_paramf = f; + } + +private: + float m_paramf; + float m_y1, m_y2; + FLEXT_CALLBACK(m_perform); + FLEXT_CALLBACK_F(m_set); +}; + +FLEXT_LIB_V("Crackle",Crackle_kr); + +Crackle_kr::Crackle_kr(int argc, t_atom *argv) + : m_y1(0.3f),m_y2(0.f) +{ + FLEXT_ADDBANG(0,m_perform); + FLEXT_ADDMETHOD_(0,"set",m_set); + + //parse arguments + AtomList Args(argc,argv); + m_paramf=sc_getfloatarg(Args,0); + + if (m_paramf == 0) + m_paramf = 1; + + AddOutFloat(); +} + +void Crackle_kr::m_perform() +{ + float y0 = fabs(m_y1 * m_paramf - m_y2 - 0.05f); + m_y2 = m_y1; + m_y1 = y0; + + ToOutFloat(0,y0); +} |