diff options
Diffstat (limited to 'sc4pd/source/sc*.cpp')
| -rw-r--r-- | sc4pd/source/sc+.cpp | 113 | ||||
| -rw-r--r-- | sc4pd/source/sc-.cpp | 142 |
2 files changed, 255 insertions, 0 deletions
diff --git a/sc4pd/source/sc+.cpp b/sc4pd/source/sc+.cpp new file mode 100644 index 0000000..e1a7e26 --- /dev/null +++ b/sc4pd/source/sc+.cpp @@ -0,0 +1,113 @@ +/* sc4pd + sc+~ + + 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: Phil Minton & Veryan Weston: Ways Past + +*/ + +#include "sc4pd.hpp" + + +/* ------------------------ sc+~ -------------------------------*/ + +class scadd_ar: + public sc4pd_dsp +{ + FLEXT_HEADER(scadd_ar,sc4pd_dsp); + +public: + scadd_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_nextsummand = f; + changed = true; + } + + float m_nextsummand, m_summand; + bool changed; + +private: + FLEXT_CALLBACK_1(m_set,float); +}; + +FLEXT_LIB_DSP_V("sc+~",scadd_ar); + +scadd_ar::scadd_ar(int argc, t_atom *argv) +{ + FLEXT_ADDMETHOD(1,m_set); + + //parse arguments + AtomList Args(argc,argv); + + m_summand = sc_getfloatarg(Args,0); + + AddInSignal("signal"); + AddInFloat("scalar"); + AddOutSignal(); + + changed = false; +} + +void scadd_ar::m_signal(int n, t_sample *const *in, + t_sample *const *out) +{ + t_sample *nin = *in; + t_sample *nout = *out; + + if (changed) + { + float xb = m_nextsummand; + float slope = CALCSLOPE(xb, m_summand); + for (int i = 0; i!=n; ++i) + { + ZXP(nout) = ZXP(nin) + xb; + xb += slope; + } + m_summand = xb; + changed = false; + } + else + { + float xb = m_summand; + + for (int i = 0; i!=n; ++i) + { + ZXP(nout) = ZXP(nin) + xb; + } + } +} + + diff --git a/sc4pd/source/sc-.cpp b/sc4pd/source/sc-.cpp new file mode 100644 index 0000000..0dfd2ce --- /dev/null +++ b/sc4pd/source/sc-.cpp @@ -0,0 +1,142 @@ +/* sc4pd + sc-~ + + 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: Phil Minton & Veryan Weston: Ways + +*/ + +#include "sc4pd.hpp" + + +/* ------------------------ sc-~ -------------------------------*/ + +class scsub_ar: + public sc4pd_dsp +{ + FLEXT_HEADER(scsub_ar,sc4pd_dsp); + +public: + scsub_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_nextsubtrahend = f; + changed = true; + } + + float m_nextsubtrahend, m_subtrahend; + bool changed; + bool invert; + +private: + FLEXT_CALLBACK_1(m_set,float); +}; + +FLEXT_LIB_DSP_V("sc-~",scsub_ar); + +scsub_ar::scsub_ar(int argc, t_atom *argv) +{ + FLEXT_ADDMETHOD(1,m_set); + + //parse arguments + AtomList Args(argc,argv); + + m_subtrahend = sc_getfloatarg(Args,0); + + invert = sc_inv(Args); + + AddInSignal("signal"); + AddInFloat("scalar"); + AddOutSignal(); + + changed = false; +} + +void scsub_ar::m_signal(int n, t_sample *const *in, + t_sample *const *out) +{ + t_sample *nin = *in; + t_sample *nout = *out; + + if (invert) + { + if (changed) + { + float xb = m_nextsubtrahend; + float slope = CALCSLOPE(xb, m_subtrahend); + for (int i = 0; i!=n; ++i) + { + ZXP(nout) = xb - ZXP(nin); + xb += slope; + } + m_subtrahend = xb; + changed = false; + } + else + { + float xb = m_subtrahend; + + for (int i = 0; i!=n; ++i) + { + ZXP(nout) = xb - ZXP(nin); + } + } + } + else + { + if (changed) + { + float xb = m_nextsubtrahend; + float slope = CALCSLOPE(xb, m_subtrahend); + for (int i = 0; i!=n; ++i) + { + ZXP(nout) = ZXP(nin) - xb; + xb += slope; + } + m_subtrahend = xb; + changed = false; + } + else + { + float xb = m_subtrahend; + + for (int i = 0; i!=n; ++i) + { + ZXP(nout) = ZXP(nin) - xb; + } + } + } +} + |