further checkins

svn path=/trunk/externals/tb/; revision=1866

1 files changed, 180 insertions, 0 deletions

diff --git a/sc4pd/source/NRand.cpp b/sc4pd/source/NRand.cpp
new file mode 100644
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--- /dev/null
+++ b/sc4pd/source/NRand.cpp
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+/* sc4pd 
+   NRand, NRand~
+
+   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: Jim O'Rourke & Loren Mazzacane Connors: In Bern
+   
+*/
+
+#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
+
+
+/* ------------------------ NRand~ -------------------------------*/
+
+class NRand_ar:
+    public flext_dsp
+{
+    FLEXT_HEADER(NRand_ar,flext_dsp);
+    
+public:
+    NRand_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);
+    }
+    
+private:
+    float m_sample;
+    float lo;
+    float hi;
+    int sc_n;
+    RGen rgen;
+    FLEXT_CALLBACK_I(m_seed);
+};
+
+FLEXT_LIB_DSP_V("NRand~",NRand_ar);
+
+NRand_ar::NRand_ar(int argc, t_atom *argv)
+{
+    FLEXT_ADDMETHOD_(0,"seed",m_seed);
+
+    AtomList Args(argc,argv);
+
+    if (Args.Count() != 3)
+    {
+	post("not enough arguments");
+	return;
+    }
+    lo=sc_getfloatarg(Args,0);
+    hi=sc_getfloatarg(Args,1);
+    sc_n=sc_getfloatarg(Args,2);
+    
+    rgen.init(timeseed());
+
+    AddOutSignal();
+}
+
+void NRand_ar::m_dsp(int n, t_sample *const *in, t_sample *const *out)
+{
+    float range = hi - lo;
+    float sum = 0;
+    for (int i=0; i<sc_n; ++i) 
+    {
+	sum += rgen.frand();
+    }
+    m_sample = (sum/sc_n) * range + lo;
+}
+
+
+void NRand_ar::m_signal(int n, t_sample *const *in, 
+		       t_sample *const *out)
+{
+    t_sample *nout = *out;
+    
+    float sample = m_sample;
+    
+    for (int i = 0; i!= n;++i)
+    {
+	(*(nout)++) = sample;
+    }
+}
+
+
+/* ------------------------ NRand ---------------------------------*/
+
+class NRand_kr:
+    public flext_base
+{
+    FLEXT_HEADER(NRand_kr,flext_base);
+
+public:
+    NRand_kr(int argc, t_atom *argv);
+    
+protected:
+    void m_loadbang();
+
+    void m_seed(int i)
+    {
+	rgen.init(i);
+    }
+
+private:
+    float lo;
+    float hi;
+    int sc_n;
+    RGen rgen;
+    FLEXT_CALLBACK_I(m_seed);
+};
+
+FLEXT_LIB_V("NRand",NRand_kr);
+
+NRand_kr::NRand_kr(int argc, t_atom *argv)
+{
+    FLEXT_ADDMETHOD_(0,"seed",m_seed);
+
+    AtomList Args(argc,argv);
+    if (Args.Count() != 3)
+    {
+	post("not enough arguments");
+	return;
+    }
+    lo=sc_getfloatarg(Args,0);
+    hi=sc_getfloatarg(Args,1);
+    sc_n=sc_getfloatarg(Args,2);
+    
+    rgen.init(timeseed());
+
+    AddOutFloat();
+}
+
+void NRand_kr::m_loadbang()
+{
+    float range = hi - lo;
+    float sum = 0;
+    for (int i=0; i<sc_n; ++i) 
+    {
+	sum += rgen.frand();
+    }
+    ToOutFloat(0,(sum/sc_n) * range + lo);
+}