text: /* Copyright (c) 2002-2003 krzYszcz and others.
   * For information on usage and redistribution, and for a DISCLAIMER OF ALL
   * WARRANTIES, see the file, "LICENSE.txt," in this distribution.  */
  
  #include <math.h>
  #include "m_pd.h"
  #include "fragile.h"
  #include "sic.h"
  
  #if defined(_WIN32) || defined(__APPLE__)
  /* cf pd/src/x_arithmetic.c */
  #define sinf  sin
  #define cosf  cos
  #endif
  
  typedef struct _poltocar
  {
      t_sic      x_sic;
      t_outlet  *x_out2;
  } t_poltocar;
  
  static t_class *poltocar_class;
  
  static t_int *poltocar_perform(t_int *w)
  {
      int nblock = (int)(w[1]);
      t_float *in1 = (t_float *)(w[2]);
      t_float *in2 = (t_float *)(w[3]);
      t_float *out1 = (t_float *)(w[4]);
      t_float *out2 = (t_float *)(w[5]);
      while (nblock--)
      {
  	float am = *in1++, ph = *in2++;
  	*out1++ = am * cosf(ph);
  	*out2++ = -am * sinf(ph);  /* CHECKED */
      }
      return (w + 6);
  }
  
  static t_int *poltocar_perform_noimag(t_int *w)
  {
      int nblock = (int)(w[1]);
      t_float *in1 = (t_float *)(w[2]);
      t_float *in2 = (t_float *)(w[3]);
      t_float *out1 = (t_float *)(w[4]);
      while (nblock--)
      {
  	float am = *in1++, ph = *in2++;
  	*out1++ = am * cosf(ph);
      }
      return (w + 5);
  }
  
  static void poltocar_dsp(t_poltocar *x, t_signal **sp)
  {
      if (fragile_outlet_connections(x->x_out2))
  	dsp_add(poltocar_perform, 5, sp[0]->s_n, sp[0]->s_vec,
  		sp[1]->s_vec, sp[2]->s_vec, sp[3]->s_vec);
      else
  	dsp_add(poltocar_perform_noimag, 4, sp[0]->s_n, sp[0]->s_vec,
  		sp[1]->s_vec, sp[2]->s_vec);
  }
  
  static void *poltocar_new(void)
  {
      t_poltocar *x = (t_poltocar *)pd_new(poltocar_class);
      inlet_new((t_object *)x, (t_pd *)x, &s_signal, &s_signal);
      outlet_new((t_object *)x, &s_signal);
      x->x_out2 = outlet_new((t_object *)x, &s_signal);
      return (x);
  }
  
  void poltocar_tilde_setup(void)
  {
      poltocar_class = class_new(gensym("poltocar~"),
  			       (t_newmethod)poltocar_new, 0,
  			       sizeof(t_poltocar), 0, 0);
      sic_setup(poltocar_class, poltocar_dsp, SIC_FLOATTOSIGNAL);
  }
  