[PD-cvs] externals/sc4pd/source LinCong.cpp,NONE,1.1 Latoocarfian.cpp,1.1,1.2 main.cpp,1.8,1.9

Tim Blechmann timblech at users.sourceforge.net
Fri Jul 23 12:01:58 CEST 2004


Update of /cvsroot/pure-data/externals/sc4pd/source
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv10138/source

Modified Files:
	Latoocarfian.cpp main.cpp 
Added Files:
	LinCong.cpp 
Log Message:
added LinCong ugen

Index: main.cpp
===================================================================
RCS file: /cvsroot/pure-data/externals/sc4pd/source/main.cpp,v
retrieving revision 1.8
retrieving revision 1.9
diff -C2 -d -r1.8 -r1.9
*** main.cpp	19 Jul 2004 21:28:04 -0000	1.8
--- main.cpp	23 Jul 2004 10:01:56 -0000	1.9
***************
*** 59,63 ****
  	 "LinRand(~), NRand(~), ExpRand(~), LFClipNoise(~),\n"
  	 "          LFNoise0(~), LFNoise1(~), LFNoise2(~), Logistic(~), "
! 	 "Latoocarfian(~)\n");
  
      //initialize objects
--- 59,63 ----
  	 "LinRand(~), NRand(~), ExpRand(~), LFClipNoise(~),\n"
  	 "          LFNoise0(~), LFNoise1(~), LFNoise2(~), Logistic(~), "
! 	 "Latoocarfian(~), LinCong(~)\n");
  
      //initialize objects
***************
*** 138,141 ****
--- 138,144 ----
      FLEXT_DSP_SETUP(Latoocarfian_ar);
      FLEXT_SETUP(Latoocarfian_kr);
+ 
+     FLEXT_DSP_SETUP(LinCong_ar);
+     FLEXT_SETUP(LinCong_kr);
  }
  

Index: Latoocarfian.cpp
===================================================================
RCS file: /cvsroot/pure-data/externals/sc4pd/source/Latoocarfian.cpp,v
retrieving revision 1.1
retrieving revision 1.2
diff -C2 -d -r1.1 -r1.2
*** Latoocarfian.cpp	19 Jul 2004 21:28:04 -0000	1.1
--- Latoocarfian.cpp	23 Jul 2004 10:01:56 -0000	1.2
***************
*** 92,96 ****
  
  Latoocarfian_ar::Latoocarfian_ar(int argc, t_atom *argv)
!     :m_x(0.4),m_y(1)
  {
      FLEXT_ADDMETHOD_(0,"a",m_set_a);
--- 92,96 ----
  
  Latoocarfian_ar::Latoocarfian_ar(int argc, t_atom *argv)
!     :m_x(4),m_y(1)
  {
      FLEXT_ADDMETHOD_(0,"a",m_set_a);
***************
*** 101,110 ****
      //parse arguments
      AtomList Args(argc,argv);
- 
      if (Args.Count()!=4)
      {
  	post("4 arguments needed");
      }
- 
      m_a = sc_getfloatarg(Args,0);
      m_b = sc_getfloatarg(Args,1);
--- 101,108 ----

--- NEW FILE: LinCong.cpp ---
/* sc4pd 
   LinCong, LinCong~

   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 & John Tilbury: Duos For Doris
   
*/

#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


/* ------------------------ LinCong~ -------------------------------*/

class LinCong_ar:
    public flext_dsp
{
    FLEXT_HEADER(LinCong_ar,flext_dsp);
    
public:
    LinCong_ar(int argc, t_atom *argv);
    
protected:
    virtual void m_signal(int n, t_sample *const *in, t_sample *const *out);

    void m_set_seed(float f)
    {
	m_seed = (int)f;
    }

    void m_set_mul(float f)
    {
	m_mul = (int)f;
    }

    void m_set_add(float f)
    {
	m_add = (int)f;
    }

    void m_set_mod(float f)
    {
	m_mod = (int)f;
	m_scale = 2/f; //output between -1 and 1
    }

private:
    unsigned int m_seed;           //seed
    unsigned int m_mul, m_add, m_mod; //parameters
    
    float m_scale;

    FLEXT_CALLBACK_F(m_set_seed);
    FLEXT_CALLBACK_F(m_set_mul);
    FLEXT_CALLBACK_F(m_set_add);
    FLEXT_CALLBACK_F(m_set_mod);
};

FLEXT_LIB_DSP_V("LinCong~",LinCong_ar);

LinCong_ar::LinCong_ar(int argc, t_atom *argv)
{
    FLEXT_ADDMETHOD_(0,"seed",m_set_seed);
    FLEXT_ADDMETHOD_(0,"mul",m_set_mul);
    FLEXT_ADDMETHOD_(0,"add",m_set_add);
    FLEXT_ADDMETHOD_(0,"mod",m_set_mod);

    //parse arguments
    AtomList Args(argc,argv);
    if (Args.Count()!=4)
    {
	post("4 arguments needed");
    }
    m_seed = sc_getfloatarg(Args,0);
    m_mul = sc_getfloatarg(Args,1);
    m_add = sc_getfloatarg(Args,2);
    m_set_mod(sc_getfloatarg(Args,3));
    
    AddOutSignal();
}    


void LinCong_ar::m_signal(int n, t_sample *const *in, 
			       t_sample *const *out)
{
    t_sample *xout = *out;


    unsigned int seed = m_seed;
    unsigned int mul = m_mul;
    unsigned int add = m_add;
    unsigned int mod = m_mod;

    float scale = m_scale;
      
    for (int i = 0; i!= n;++i)
    {
	seed=(seed * mul + add) % mod;
	(*(xout)++)=float(seed)*scale - 1;
    }

    m_seed = seed;
}



/* ------------------------ LinCong ---------------------------------*/

class LinCong_kr:
    public flext_base
{
    FLEXT_HEADER(LinCong_kr,flext_base);

public:
    LinCong_kr(int argc, t_atom *argv);
    
protected:
    void m_perform();

    void m_set_seed(float f)
    {
	m_seed = (int)f;
    }

    void m_set_mul(float f)
    {
	m_mul = (int)f;
    }

    void m_set_add(float f)
    {
	m_add = (int)f;
    }

    void m_set_mod(float f)
    {
	m_mod = (int)f;
	m_scale = 2/f; //output between -1 and 1
    }

private:
    unsigned int m_seed;           //seed
    unsigned int m_mul, m_add, m_mod; //parameters
    
    float m_scale;

    FLEXT_CALLBACK_F(m_set_seed);
    FLEXT_CALLBACK_F(m_set_mul);
    FLEXT_CALLBACK_F(m_set_add);
    FLEXT_CALLBACK_F(m_set_mod);
    FLEXT_CALLBACK(m_perform);
};


FLEXT_LIB_V("LinCong",LinCong_kr);

LinCong_kr::LinCong_kr(int argc, t_atom *argv)
{
    FLEXT_ADDMETHOD_(0,"seed",m_set_seed);
    FLEXT_ADDMETHOD_(0,"mul",m_set_mul);
    FLEXT_ADDMETHOD_(0,"add",m_set_add);
    FLEXT_ADDMETHOD_(0,"mod",m_set_mod);
    FLEXT_ADDBANG(0,m_perform);

    //parse arguments
    AtomList Args(argc,argv);
    if (Args.Count()!=4)
    {
	post("4 arguments needed");
    }
    m_seed = sc_getfloatarg(Args,0);
    m_mul = sc_getfloatarg(Args,1);
    m_add = sc_getfloatarg(Args,2);
    m_set_mod(sc_getfloatarg(Args,3));

    AddOutFloat();
}

void LinCong_kr::m_perform()
{
    m_seed=(m_seed * m_mul + m_add) % m_mod;
    ToOutFloat(0,float(m_seed) * m_scale - 1);
}





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