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

1 files changed, 179 insertions, 0 deletions

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 <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
+
+/* ------------------------ 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());
+}