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-rw-r--r--sc4pd/source/LFPulse.cpp299
-rw-r--r--sc4pd/source/LFSaw.cpp263
-rw-r--r--sc4pd/source/main.cpp13
-rw-r--r--sc4pd/source/support.hpp29
4 files changed, 600 insertions, 4 deletions
diff --git a/sc4pd/source/LFPulse.cpp b/sc4pd/source/LFPulse.cpp
new file mode 100644
index 0000000..76abc2c
--- /dev/null
+++ b/sc4pd/source/LFPulse.cpp
@@ -0,0 +1,299 @@
+/* sc4pd
+ LFPulse, LFPulse~
+
+ 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: Keith Rowe & Oren Ambarchi: Flypaper
+
+*/
+
+#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
+
+
+/* ------------------------ LFPulse~ -------------------------------*/
+
+class LFPulse_ar:
+ public flext_dsp
+{
+ FLEXT_HEADER(LFPulse_ar,flext_dsp);
+
+public:
+ LFPulse_ar(int argc, t_atom *argv);
+
+protected:
+ virtual void m_signal(int n, t_sample *const *in, t_sample *const *out)
+ {
+ m_signal_fun(n,in,out);
+ }
+ virtual void m_dsp(int n, t_sample *const *in, t_sample *const *out);
+
+ void m_set(float f)
+ {
+ m_freq=f;
+ }
+
+ void m_ar()
+ {
+ SETSIGFUN(m_signal_fun,SIGFUN(m_signal_ar));
+ }
+
+ void m_kr()
+ {
+ SETSIGFUN(m_signal_fun,SIGFUN(m_signal_kr));
+ }
+
+ void m_width (float f)
+ {
+ nextDuty = f;
+ }
+
+
+private:
+ double mPhase;
+ float mFreqMul;
+ float m_freq; //for kr arguments
+ float mDuty;
+ float nextDuty;
+
+ DEFSIGCALL (m_signal_fun);
+ DEFSIGFUN (m_signal_ar);
+ DEFSIGFUN (m_signal_kr);
+
+ FLEXT_CALLBACK_F(m_set);
+ FLEXT_CALLBACK_F(m_width);
+ FLEXT_CALLBACK(m_ar);
+ FLEXT_CALLBACK(m_kr);
+};
+
+FLEXT_LIB_DSP_V("LFPulse~",LFPulse_ar);
+
+LFPulse_ar::LFPulse_ar(int argc, t_atom *argv)
+{
+ FLEXT_ADDMETHOD_(0,"freq",m_set);
+ FLEXT_ADDMETHOD_(0,"width",m_width);
+ FLEXT_ADDMETHOD_(0,"ar",m_ar);
+ FLEXT_ADDMETHOD_(0,"kr",m_kr);
+
+ //parse arguments
+ AtomList Args(argc,argv);
+
+ m_freq = sc_getfloatarg(Args,0);
+
+ nextDuty = sc_getfloatarg(Args,1);
+
+ if(sc_ar(Args))
+ SETSIGFUN(m_signal_fun,SIGFUN(m_signal_ar));
+ else // if not given, use control rate
+ SETSIGFUN(m_signal_fun,SIGFUN(m_signal_kr));
+
+ AddOutSignal();
+}
+
+void LFPulse_ar::m_dsp(int n, t_sample *const *in, t_sample *const *out)
+{
+ mFreqMul = 1 / Samplerate();
+
+}
+
+void LFPulse_ar::m_signal_ar(int n, t_sample *const *in,
+ t_sample *const *out)
+{
+ t_sample *freq = *in;
+ t_sample *xout = *out;
+
+ float freqmul = mFreqMul;
+ double phase = mPhase;
+ float duty = mDuty;
+
+ for (int i = 0; i!= n;++i)
+ {
+ float z;
+ if (phase >= 1.f)
+ {
+ phase -= 1.f;
+ duty = mDuty = nextDuty;
+ // output at least one sample from the opposite polarity
+ z = duty < 0.5 ? 1.f : 0.f;
+ }
+ else
+ {
+ z = phase < duty ? 1.f : 0.f;
+ }
+
+ phase += (*(freq)++) * freqmul;
+ (*(xout)++) = z;
+ }
+
+ mPhase=phase;
+}
+
+
+void LFPulse_ar::m_signal_kr(int n, t_sample *const *in,
+ t_sample *const *out)
+{
+ t_sample *xout = *out;
+
+ double phase = mPhase;
+ float duty = mDuty;
+ float freq = m_freq * mFreqMul;
+
+ for (int i = 0; i!= n;++i)
+ {
+ float z;
+ if (phase >= 1.f)
+ {
+ phase -= 1.f;
+ duty = mDuty = nextDuty;
+ // output at least one sample from the opposite polarity
+ z = duty < 0.5 ? 1.f : 0.f;
+ }
+ else
+ {
+ z = phase < duty ? 1.f : 0.f;
+ }
+
+ phase += freq;
+ (*(xout)++) = z;
+ }
+ mPhase=phase;
+}
+
+/* ------------------------ LFPulse ---------------------------------*/
+
+/* todo: remove obsolete messages */
+
+class LFPulse_kr:
+ public flext_base
+{
+ FLEXT_HEADER(LFPulse_kr,flext_base);
+
+public:
+ LFPulse_kr(int argc, t_atom *argv);
+
+protected:
+ void m_perform(void*);
+
+ void m_set(float f)
+ {
+ m_freq_set = f;
+ m_freq = f * mFreqMul;
+ }
+
+ void m_set_kr(float f)
+ {
+ if (f != 0)
+ {
+ dt = f * 0.001;
+ mFreqMul = dt;
+ m_freq = m_freq_set * mFreqMul;
+ m_timer.Reset();
+ m_timer.Periodic(dt);
+ }
+ }
+
+ void m_set_width(float f)
+ {
+ nextDuty=f;
+ }
+
+private:
+ double mPhase;
+ float mFreqMul;
+ float mDuty;
+ float nextDuty;
+ float m_freq;
+ float dt;
+ float m_freq_set;
+
+ Timer m_timer;
+
+ FLEXT_CALLBACK_F(m_set_kr);
+ FLEXT_CALLBACK_F(m_set);
+ FLEXT_CALLBACK_F(m_set_width);
+ FLEXT_CALLBACK_T(m_perform);
+};
+
+
+FLEXT_LIB_V("LFPulse",LFPulse_kr);
+
+LFPulse_kr::LFPulse_kr(int argc, t_atom *argv)
+{
+ FLEXT_ADDMETHOD(0,m_set);
+ FLEXT_ADDMETHOD_(0,"kr",m_set_kr);
+ FLEXT_ADDMETHOD_(0,"width",m_set_width);
+
+ FLEXT_ADDTIMER(m_timer,m_perform);
+
+ AddOutFloat();
+
+ //parse arguments
+ AtomList Args(argc,argv);
+
+ m_freq_set = sc_getfloatarg(Args,0);
+
+ nextDuty = sc_getfloatarg(Args,1);
+
+ dt = sc_getfloatarg(Args,2) * 0.001;
+
+ if (dt == 0)
+ dt = 0.02; // 20 ms as default control rate as in line
+ mFreqMul = dt;
+
+ m_freq = m_freq_set * mFreqMul;
+
+ m_timer.Periodic(dt);
+
+}
+
+void LFPulse_kr::m_perform(void*)
+{
+ float z;
+ if (mPhase >= 1.f)
+ {
+ mPhase -= 1.f;
+ mDuty = nextDuty;
+ // output at least one sample from the opposite polarity
+ z = mDuty < 0.5 ? 1.f : 0.f;
+ }
+ else
+ {
+ z = mPhase < mDuty ? 1.f : 0.f;
+ }
+ mPhase += m_freq;
+ ToOutFloat(0,z);
+}
diff --git a/sc4pd/source/LFSaw.cpp b/sc4pd/source/LFSaw.cpp
new file mode 100644
index 0000000..358cb2f
--- /dev/null
+++ b/sc4pd/source/LFSaw.cpp
@@ -0,0 +1,263 @@
+/* sc4pd
+ LFSaw, LFSaw~
+
+ 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: Keith Rowe & Oren Ambarchi: Flypaper
+
+*/
+
+#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
+
+
+/* ------------------------ LFSaw~ -------------------------------*/
+
+class LFSaw_ar:
+ public flext_dsp
+{
+ FLEXT_HEADER(LFSaw_ar,flext_dsp);
+
+public:
+ LFSaw_ar(int argc, t_atom *argv);
+
+protected:
+ virtual void m_signal(int n, t_sample *const *in, t_sample *const *out)
+ {
+ m_signal_fun(n,in,out);
+ }
+ virtual void m_dsp(int n, t_sample *const *in, t_sample *const *out);
+
+ void m_set(float f)
+ {
+ m_freq=f;
+ }
+
+ void m_ar()
+ {
+ SETSIGFUN(m_signal_fun,SIGFUN(m_signal_ar));
+ }
+
+ void m_kr()
+ {
+ SETSIGFUN(m_signal_fun,SIGFUN(m_signal_kr));
+ }
+
+private:
+ double mPhase;
+ float mFreqMul;
+ float m_freq; //for kr arguments
+
+ DEFSIGCALL (m_signal_fun);
+ DEFSIGFUN (m_signal_ar);
+ DEFSIGFUN (m_signal_kr);
+
+ FLEXT_CALLBACK_F(m_set);
+ FLEXT_CALLBACK(m_ar);
+ FLEXT_CALLBACK(m_kr);
+};
+
+FLEXT_LIB_DSP_V("LFSaw~",LFSaw_ar);
+
+LFSaw_ar::LFSaw_ar(int argc, t_atom *argv)
+{
+ FLEXT_ADDMETHOD_(0,"freq",m_set);
+ FLEXT_ADDMETHOD_(0,"ar",m_ar);
+ FLEXT_ADDMETHOD_(0,"kr",m_kr);
+
+ //parse arguments
+ AtomList Args(argc,argv);
+
+ m_freq = sc_getfloatarg(Args,0);
+
+ if(sc_ar(Args))
+ SETSIGFUN(m_signal_fun,SIGFUN(m_signal_ar));
+ else // if not given, use control rate
+ SETSIGFUN(m_signal_fun,SIGFUN(m_signal_kr));
+
+ AddOutSignal();
+}
+
+void LFSaw_ar::m_dsp(int n, t_sample *const *in, t_sample *const *out)
+{
+ mFreqMul = 2 / Samplerate();
+}
+
+void LFSaw_ar::m_signal_ar(int n, t_sample *const *in,
+ t_sample *const *out)
+{
+ t_sample *freq = *in;
+ t_sample *xout = *out;
+
+ float freqmul = mFreqMul;
+ double phase = mPhase;
+
+ for (int i = 0; i!= n;++i)
+ {
+ float z = phase; // out must be written last for in place operation
+ phase += (*(freq)++) * freqmul;
+ if (phase >= 1.f)
+ phase -= 2.f;
+ else
+ if (phase <= -1.f)
+ phase += 2.f;
+ (*(xout)++) = z;
+ }
+
+ mPhase=phase;
+}
+
+
+void LFSaw_ar::m_signal_kr(int n, t_sample *const *in,
+ t_sample *const *out)
+{
+ t_sample *xout = *out;
+
+ float freq = m_freq * mFreqMul;
+ double phase = mPhase;
+
+ if (freq >= 0.f)
+ {
+ for (int i = 0; i!= n;++i)
+ {
+ (*(xout)++) = phase;
+ phase += freq;
+ if (phase >= 1.f) phase -= 2.f;
+ }
+ }
+ else
+ {
+ for (int i = 0; i!= n;++i)
+ {
+ (*(xout)++) = phase;
+ phase += freq;
+ if (phase <= -1.f) phase += 2.f;
+ }
+ }
+
+ mPhase=phase;
+}
+
+/* ------------------------ LFSaw ---------------------------------*/
+
+class LFSaw_kr:
+ public flext_base
+{
+ FLEXT_HEADER(LFSaw_kr,flext_base);
+
+public:
+ LFSaw_kr(int argc, t_atom *argv);
+
+protected:
+ void m_perform(void*);
+
+ void m_set(float f)
+ {
+ m_freq_set = f;
+ m_freq = f * mFreqMul;
+ }
+
+ void m_set_kr(float f)
+ {
+ if (f != 0)
+ {
+ dt = f * 0.001;
+ mFreqMul = 2*dt;
+ m_freq = m_freq_set * mFreqMul;
+ m_timer.Reset();
+ m_timer.Periodic(dt);
+ }
+ }
+
+private:
+ double mPhase;
+ float mFreqMul;
+ float m_freq;
+ float dt;
+ float m_freq_set;
+
+ Timer m_timer;
+
+ FLEXT_CALLBACK_F(m_set_kr);
+ FLEXT_CALLBACK_F(m_set);
+ FLEXT_CALLBACK_T(m_perform);
+};
+
+
+FLEXT_LIB_V("LFSaw",LFSaw_kr);
+
+LFSaw_kr::LFSaw_kr(int argc, t_atom *argv)
+{
+ FLEXT_ADDMETHOD(0,m_set);
+ FLEXT_ADDMETHOD_(0,"kr",m_set_kr);
+ // FLEXT_ADDBANG(0,m_perform);
+ FLEXT_ADDTIMER(m_timer,m_perform);
+
+ AddOutFloat();
+
+ //parse arguments
+ AtomList Args(argc,argv);
+
+ m_freq_set = sc_getfloatarg(Args,0);
+
+ dt = sc_getfloatarg(Args,1) * 0.001;
+
+ if (dt == 0 )
+ dt = 0.02; // 20 ms as default control rate as in line
+ mFreqMul = 2 * dt; /* test this !!! */
+
+ m_freq = m_freq_set * mFreqMul;
+
+ m_timer.Periodic(dt);
+
+}
+
+void LFSaw_kr::m_perform(void*)
+{
+ if (m_freq >= 0.f)
+ {
+ ToOutFloat(0,mPhase);
+ mPhase += m_freq;
+ if (mPhase >= 1.f) mPhase -= 2.f;
+ }
+ else
+ {
+ ToOutFloat(0,mPhase);
+ mPhase += m_freq;
+ if (mPhase <= -1.f) mPhase += 2.f;
+ }
+}
diff --git a/sc4pd/source/main.cpp b/sc4pd/source/main.cpp
index df430f9..7b16ccb 100644
--- a/sc4pd/source/main.cpp
+++ b/sc4pd/source/main.cpp
@@ -32,7 +32,6 @@
http://www.audiosynth.com
Coded while listening to: Phosphor
-
*/
#include <flext.h>
@@ -61,9 +60,9 @@ void sc4pd_library_setup()
"Latoocarfian(~),\n"
" LinCong(~), amclip(~), scaleneg(~), excess(~), hypot(~), "
"ring1(~),\n"
- " ring2(~), ring3(~), ring4(~), difsqr(~), sumsqr(~)\n"
- "sqrdif(~), sqrsum(~),\n"
- " absdif(~)");
+ " ring2(~), ring3(~), ring4(~), difsqr(~), sumsqr(~), "
+ "sqrdif(~),\n"
+ " sqrsum(~), absdif(~), LFSaw(~), LFPulse(~)");
//initialize objects
FLEXT_DSP_SETUP(Dust_ar);
@@ -184,6 +183,12 @@ void sc4pd_library_setup()
FLEXT_DSP_SETUP(absdif_ar);
FLEXT_SETUP(absdif_kr);
+
+ FLEXT_DSP_SETUP(LFSaw_ar);
+ FLEXT_SETUP(LFSaw_kr);
+
+ FLEXT_DSP_SETUP(LFPulse_ar);
+ FLEXT_SETUP(LFPulse_kr);
}
FLEXT_LIB_SETUP(sc4pd,sc4pd_library_setup);
diff --git a/sc4pd/source/support.hpp b/sc4pd/source/support.hpp
index 79faff5..d05497e 100644
--- a/sc4pd/source/support.hpp
+++ b/sc4pd/source/support.hpp
@@ -64,3 +64,32 @@ bool sc_ar(flext::AtomList a);
rgen.s3 = s3;
int32 timeseed();
+
+
+/* this is copied from thomas grill's xsample:
+xsample - extended sample objects for Max/MSP and pd (pure data)
+
+Copyright (c) 2001-2004 Thomas Grill (xovo@gmx.net)
+For information on usage and redistribution, and for a DISCLAIMER OF ALL
+WARRANTIES, see the file, "license.txt," in this distribution.
+*/
+
+#define F float
+#define D double
+#define I int
+#define L long
+#define C char
+#define V void
+#define BL bool
+#define S t_sample
+
+#define SETSIGFUN(VAR,FUN) v_##VAR = FUN
+
+#define DEFSIGFUN(NAME) V NAME(I n,S *const *in,S *const *out)
+
+#define DEFSIGCALL(NAME) \
+ inline V NAME(I n,S *const *in,S *const *out) \
+ { (this->*v_##NAME)(n,in,out); } \
+ V (thisType::*v_##NAME)(I n,S *const *invecs,S *const *outvecs)
+
+#define SIGFUN(FUN) &thisType::FUN
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