*** empty log message ***

svn path=/trunk/externals/tb/; revision=1869

5 files changed, 537 insertions, 14 deletions

diff --git a/sc4pd/source/LFClipNoise.cpp b/sc4pd/source/LFClipNoise.cpp
index 9aa6dfc..18f95ee 100644
--- a/sc4pd/source/LFClipNoise.cpp
+++ b/sc4pd/source/LFClipNoise.cpp
@@ -154,7 +154,7 @@ public:
     LFClipNoise_kr(int argc, t_atom *argv);
     
 protected:
-    void m_perform();
+    void m_perform(void*);
     
     void m_seed(int i)
     {
@@ -163,9 +163,9 @@ protected:
  
     void m_set(float f)
     {
-	double dt = sc_min(1/f, .001f);
+	double dt = sc_max(1/f, .001f);
 	m_timer.Reset();
-	m_timer.Periodic(1000*dt);
+	m_timer.Periodic(dt);
     }
    
 private:
@@ -187,16 +187,16 @@ LFClipNoise_kr::LFClipNoise_kr(int argc, t_atom *argv)
     //parse arguments
     AtomList Args(argc,argv);
     
-    double dt = sc_min(1/sc_getfloatarg(Args,0), .001f);
+    double dt = sc_max(1/sc_getfloatarg(Args,0), .001f);
     
     rgen.init(timeseed());
 
-    m_timer.Periodic(1000*dt);
+    m_timer.Periodic(dt);
 
     AddOutFloat();
 }
 
-void LFClipNoise_kr::m_perform()
+void LFClipNoise_kr::m_perform(void*)
 {
     ToOutFloat(0,rgen.fcoin());
 }
diff --git a/sc4pd/source/LFNoise0.cpp b/sc4pd/source/LFNoise0.cpp
index 6e9c5bb..c0f8abd 100644
--- a/sc4pd/source/LFNoise0.cpp
+++ b/sc4pd/source/LFNoise0.cpp
@@ -154,8 +154,8 @@ public:
     LFNoise0_kr(int argc, t_atom *argv);
     
 protected:
-    void m_perform();
-    
+    void m_perform(void*);
+
     void m_seed(int i)
     {
 	rgen.init(i);
@@ -163,9 +163,9 @@ protected:
  
     void m_set(float f)
     {
-	double dt = sc_min(1/f, .001f);
+	double dt = sc_max(1/f, .001f);
 	m_timer.Reset();
-	m_timer.Periodic(1000*dt);
+	m_timer.Periodic(dt);
     }
    
 private:
@@ -187,16 +187,16 @@ LFNoise0_kr::LFNoise0_kr(int argc, t_atom *argv)
     //parse arguments
     AtomList Args(argc,argv);
     
-    double dt = sc_min(1/sc_getfloatarg(Args,0), .001f);
+    double dt = sc_max(1/sc_getfloatarg(Args,0), .001f);
     
     rgen.init(timeseed());
 
-    m_timer.Periodic(1000*dt);
+    m_timer.Periodic(dt);
 
     AddOutFloat();
 }
 
-void LFNoise0_kr::m_perform()
+void LFNoise0_kr::m_perform(void*)
 {
     ToOutFloat(0,rgen.frand2());
 }
diff --git a/sc4pd/source/LFNoise1.cpp b/sc4pd/source/LFNoise1.cpp
new file mode 100644
index 0000000..e48d3bb
--- /dev/null
+++ b/sc4pd/source/LFNoise1.cpp
@@ -0,0 +1,239 @@
+/* sc4pd 
+   LFNoise1, LFNoise1~
+
+   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: Fred Frith: Gravity
+   
+*/
+
+#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
+
+
+/* ------------------------ LFNoise1~ -------------------------------*/
+
+class LFNoise1_ar:
+    public flext_dsp
+{
+    FLEXT_HEADER(LFNoise1_ar,flext_dsp);
+    
+public:
+    LFNoise1_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;
+    float m_slope;
+    int m_counter;
+    int m_sr;
+    FLEXT_CALLBACK_I(m_seed);
+    FLEXT_CALLBACK_F(m_set);
+};
+
+FLEXT_LIB_DSP_V("LFNoise1~",LFNoise1_ar);
+
+LFNoise1_ar::LFNoise1_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);
+    
+    rgen.init(timeseed());
+
+    m_counter=0;
+    m_level=rgen.frand2();
+    m_slope=0;
+
+    AddOutSignal();
+}    
+
+void LFNoise1_ar::m_dsp(int n, t_sample *const *in, 
+			   t_sample *const *out)
+{
+    m_sr = Samplerate();
+}
+
+
+void LFNoise1_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;
+    float slope = m_slope;
+    
+    RGET;
+
+    int remain = n;
+    do
+    {
+	if (counter<=0) 
+	{
+	    counter = (int)(m_sr / sc_max(m_freq, .001f));
+	    counter = sc_max(1, counter);
+	    float nextlevel = frand2(s1,s2,s3);
+	    slope = (nextlevel - level) / counter;
+	}
+	int nsmps = sc_min(remain, counter);
+	remain -= nsmps;
+	counter -= nsmps;
+	
+	for (int i = 0; i!= nsmps;++i)
+	{
+	    (*(nout)++)=level;
+	    level+=slope;
+	}
+    }
+    while(remain);
+
+    m_level = level;
+    m_counter = counter;
+    m_slope = slope;
+    
+    RPUT;
+}
+
+
+/* ------------------------ LFNoise1 ---------------------------------*/
+
+class LFNoise1_kr:
+    public flext_base
+{
+    FLEXT_HEADER(LFNoise1_kr,flext_base);
+
+public:
+    LFNoise1_kr(int argc, t_atom *argv);
+    
+protected:
+    void m_perform(void*);
+
+    void m_seed(int i)
+    {
+	rgen.init(i);
+    }
+ 
+    void m_set(float);
+   
+private:
+    RGen rgen;
+    float m_level;
+    float m_slope;
+    
+    float dt;                           //in s
+    float tick;                        //in s
+    int counter;
+
+    Timer m_timer;
+    FLEXT_CALLBACK_I(m_seed);
+    FLEXT_CALLBACK_T(m_perform);
+    FLEXT_CALLBACK_F(m_set);
+};
+
+FLEXT_LIB_V("LFNoise1",LFNoise1_kr);
+
+LFNoise1_kr::LFNoise1_kr(int argc, t_atom *argv)
+    : tick(0.01)
+{
+    FLEXT_ADDMETHOD_(0,"seed",m_seed);
+    FLEXT_ADDMETHOD_(0,"set",m_set);
+    FLEXT_ADDTIMER(m_timer,m_perform);
+    
+    //parse arguments
+    AtomList Args(argc,argv);
+    
+    rgen.init(timeseed());
+
+    m_level=rgen.frand2();
+
+    AddOutFloat();
+
+    m_set(sc_getfloatarg(Args,0));
+}
+
+void LFNoise1_kr::m_set(float f)
+{
+    dt = sc_max(1/f, .001f);
+    counter = (dt/tick);
+    
+    float nextlevel = rgen.frand2();
+    m_slope = (nextlevel - m_level) / counter;
+    
+    m_timer.Reset();
+    m_timer.Delay(tick);
+}
+
+void LFNoise1_kr::m_perform(void*)
+{
+    m_level+=m_slope;
+    ToOutFloat(0,m_level);
+    if (--counter)
+    {
+	m_timer.Reset();
+	m_timer.Delay(tick);
+    }
+    else
+    {
+	counter = (dt/tick);
+	float nextlevel = rgen.frand2();
+	m_slope = (nextlevel - m_level) / counter;
+	
+	m_timer.Reset();
+	m_timer.Delay(tick);
+	
+    }
+}
diff --git a/sc4pd/source/LFNoise2.cpp b/sc4pd/source/LFNoise2.cpp
new file mode 100644
index 0000000..71aff7d
--- /dev/null
+++ b/sc4pd/source/LFNoise2.cpp
@@ -0,0 +1,278 @@
+/* sc4pd 
+   LFNoise2, LFNoise2~
+
+   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: Guenther Mueller & Toshimaru Nakamura: Tint
+   
+*/
+
+#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
+
+
+/* ------------------------ LFNoise2~ -------------------------------*/
+
+class LFNoise2_ar:
+    public flext_dsp
+{
+    FLEXT_HEADER(LFNoise2_ar,flext_dsp);
+    
+public:
+    LFNoise2_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;
+    float m_slope;
+    float m_curve;
+    int m_counter;
+    int m_sr;
+    float m_nextvalue;
+    float m_nextmidpt;
+
+    FLEXT_CALLBACK_I(m_seed);
+    FLEXT_CALLBACK_F(m_set);
+};
+
+FLEXT_LIB_DSP_V("LFNoise2~",LFNoise2_ar);
+
+LFNoise2_ar::LFNoise2_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);
+    
+    rgen.init(timeseed());
+
+    m_counter=0;
+    m_level=rgen.frand2();
+    m_slope=0;
+    m_curve=0;
+    m_nextvalue=0;
+    m_nextmidpt=0;
+
+    AddOutSignal();
+}    
+
+void LFNoise2_ar::m_dsp(int n, t_sample *const *in, 
+			   t_sample *const *out)
+{
+    m_sr = Samplerate();
+}
+
+
+void LFNoise2_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;
+    float slope = m_slope;
+    float curve = m_curve;
+    
+    RGET;
+
+    int remain = n;
+    do
+    {
+	if (counter<=0) 
+	{
+	    float value = m_nextvalue;
+	    m_nextvalue = frand2(s1,s2,s3);
+	    level = m_nextmidpt;
+	    m_nextmidpt = (m_nextvalue + value) * .5;
+	    
+	    counter = (int32)(m_sr / sc_max(m_freq, .001f));
+	    counter = sc_max(2, counter);
+	    float fseglen = (float)counter;
+	    curve = 2.f * (m_nextmidpt - level - fseglen * slope) 
+		/ (fseglen * fseglen + fseglen);
+	}
+	int nsmps = sc_min(remain, counter);
+	remain -= nsmps;
+	counter -= nsmps;
+	
+	for (int i = 0; i!= nsmps;++i)
+	{
+	    (*(nout)++)=level;
+	    slope+=curve;
+	    level+=slope;
+	}
+    }
+    while(remain);
+
+    m_level = level;
+    m_counter = counter;
+    m_slope = slope;
+    m_curve = curve;
+    
+    RPUT;
+}
+
+
+/* ------------------------ LFNoise2 ---------------------------------*/
+
+class LFNoise2_kr:
+    public flext_base
+{
+    FLEXT_HEADER(LFNoise2_kr,flext_base);
+
+public:
+    LFNoise2_kr(int argc, t_atom *argv);
+    
+protected:
+    void m_perform(void*);
+
+    void m_seed(int i)
+    {
+	rgen.init(i);
+    }
+ 
+    void m_set(float);
+   
+private:
+    RGen rgen;
+    float m_level;
+    float m_slope;
+    float m_curve;
+    float m_nextvalue;
+    float m_nextmidpt;
+    
+    float dt;                           //in s
+    float tick;                        //in s
+    int counter;
+
+    Timer m_timer;
+    FLEXT_CALLBACK_I(m_seed);
+    FLEXT_CALLBACK_T(m_perform);
+    FLEXT_CALLBACK_F(m_set);
+};
+
+FLEXT_LIB_V("LFNoise2",LFNoise2_kr);
+
+LFNoise2_kr::LFNoise2_kr(int argc, t_atom *argv)
+    : tick(0.01)
+{
+    FLEXT_ADDMETHOD_(0,"seed",m_seed);
+    FLEXT_ADDMETHOD_(0,"set",m_set);
+    FLEXT_ADDTIMER(m_timer,m_perform);
+    
+    //parse arguments
+    AtomList Args(argc,argv);
+    
+    rgen.init(timeseed());
+
+    m_level=rgen.frand2();
+
+    AddOutFloat();
+
+    m_set(sc_getfloatarg(Args,0));
+}
+
+
+void LFNoise2_kr::m_set(float f)
+{
+    dt = sc_max(1/f, .001f);
+    counter = (dt/tick);
+    counter = sc_max(2, counter);
+    
+    float value = m_nextvalue;
+    m_nextvalue = rgen.frand2();
+    m_level = m_nextmidpt;
+    m_nextmidpt = (m_nextvalue + value) * .5;
+    
+    float fseglen = (float)counter;
+    m_curve = 2.f * (m_nextmidpt - m_level - fseglen * m_slope) 
+	/ (fseglen * fseglen + fseglen);
+    
+    
+    m_timer.Reset();
+    m_timer.Delay(tick);
+}
+
+void LFNoise2_kr::m_perform(void*)
+{
+    m_slope+=m_curve;
+    m_level+=m_slope;
+    ToOutFloat(0,m_level);
+    if (--counter)
+    {
+	m_timer.Reset();
+	m_timer.Delay(tick);
+    }
+    else
+    {
+	counter = (dt/tick);
+
+	counter = sc_max(2, counter);
+	
+	float value = m_nextvalue;
+	m_nextvalue = rgen.frand2();
+	m_level = m_nextmidpt;
+	m_nextmidpt = (m_nextvalue + value) * .5;
+	
+	float fseglen = (float)counter;
+	m_curve = 2.f * (m_nextmidpt - m_level - fseglen * m_slope) / 
+	    (fseglen * fseglen + fseglen);
+	
+	m_timer.Reset();
+	m_timer.Delay(tick);
+	
+    }
+}
+
diff --git a/sc4pd/source/main.cpp b/sc4pd/source/main.cpp
index 5940253..0ce8b16 100644
--- a/sc4pd/source/main.cpp
+++ b/sc4pd/source/main.cpp
@@ -57,7 +57,7 @@ void sc4pd_library_setup()
 	 "PinkNoise(~), \n          Crackle(~), Rand(~), TRand(~), "
 	 "TExpRand(~), IRand(~), TIRand(~),\n          CoinGate, "
 	 "LinRand(~), NRand(~), ExpRand(~), LFClipNoise(~),\n"
-	 "          LFNoise0(~)\n");
+	 "          LFNoise0(~), LFNoise1(~), LFNoise2\n");
 
     //initialize objects
     FLEXT_DSP_SETUP(Dust_ar);
@@ -124,6 +124,12 @@ void sc4pd_library_setup()
 
     FLEXT_DSP_SETUP(LFNoise0_ar);
     FLEXT_SETUP(LFNoise0_kr);
+
+    FLEXT_DSP_SETUP(LFNoise1_ar);
+    FLEXT_SETUP(LFNoise1_kr);
+
+    FLEXT_DSP_SETUP(LFNoise2_ar);
+    FLEXT_SETUP(LFNoise2_kr);
 }
 
 FLEXT_LIB_SETUP(sc4pd,sc4pd_library_setup);