changed from mtx_rowrfft and mtx_rowrifft to

mtx_rfft and mtx_rifft


svn path=/trunk/externals/iem/iemmatrix/; revision=10193

1 files changed, 0 insertions, 226 deletions

diff --git a/src/mtx_rowrifft.c b/src/mtx_rowrifft.c
deleted file mode 100644
index a70e405..0000000
--- a/src/mtx_rowrifft.c
+++ /dev/null
@@ -1,226 +0,0 @@
-/*
- *  iemmatrix
- *
- *  objects for manipulating simple matrices
- *  mostly refering to matlab/octave matrix functions
- *
- * Copyright (c) 2005, Franz Zotter
- * IEM, Graz, Austria
- *
- * For information on usage and redistribution, and for a DISCLAIMER OF ALL
- * WARRANTIES, see the file, "LICENSE.txt," in this distribution.
- *
- */
-
-#include "iemmatrix.h"
-#include <stdlib.h>
-
-static t_class *mtx_rowrifft_class;
-
-typedef struct _MTXRowrifft_
-{
-  t_object x_obj;
-  int rows;
-  int columns;
-  int columns_re;
-  int size;
-  int size2;
-  t_float renorm_fac;
-
-  t_float *f_re;
-  t_float *f_im;
-
-  t_outlet *list_re_out;
-  t_outlet *list_im_out;
-   
-  t_atom *list_re;
-  t_atom *list_im;
-} MTXRowrifft;
-
-
-/* helper functions: these should really go into a separate file! */
-
-
-static void zeroFloatArray (int n, t_float *f)
-{
-  while (n--)
-    *f++ = 0.0f;
-}
-
-static void writeFloatIntoList (int n, t_atom *l, t_float *f) 
-{
-  for (;n--;f++, l++) 
-    SETFLOAT (l, *f);
-}
-static void readFloatFromList (int n, t_atom *l, t_float *f) 
-{
-  while (n--) 
-    *f++ = atom_getfloat (l++);
-}
-
-/*--------------inverse real fft */
-
-static void multiplyVector (int n, t_float *f, t_float fac)
-{
-  while (n--)
-    *f++ *= fac;
-}
-
-
-static void ifftPrepareReal (int n, t_float *re, t_float *im) 
-{
-  n >>= 1;
-  re += n;
-  im += n;
-   
-  while (--n) 
-    *++re = -*--im;
-}
-
-
-static void *newMTXRowrifft (t_symbol *s, int argc, t_atom *argv)
-{
-  MTXRowrifft *x = (MTXRowrifft *) pd_new (mtx_rowrifft_class);
-  inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("matrix"),gensym(""));
-  x->list_re_out = outlet_new (&x->x_obj, gensym("matrix"));
-  return ((void *) x);
-} 
-
-
-static void mTXrowrifftMatrixCold (MTXRowrifft *x, t_symbol *s, 
-				   int argc, t_atom *argv)
-{
-    int rows = atom_getint (argv++);
-  int columns_re = atom_getint (argv++);
-  int in_size = argc-2;
-  int columns = (columns_re-1)<<1;
-  int size2 = columns_re * rows;
-  int size = rows * columns;
-  int ifft_count;
-  t_atom *list_re = x->list_re;
-  t_float *f_re = x->f_re;
-  t_float *f_im = x->f_im;
-
-  /* ifftsize check */
-  if (columns_re < 3)
-    post("mtx_rowrifft: matrix must have at least 3 columns");
-  else if (!size) 
-    post("mtx_rowrifft: invalid dimensions");
-  else if (in_size < size2)
-    post("mtx_rowrifft: sparse matrix not yet supported: use \"mtx_check\"");
-  else if (columns<4)
-    post("mtx_rowrifft: too small matrices");
-  else if (columns == (1 << ilog2(columns))) {
-
-    /* memory things */
-    f_re=(t_float*)realloc(f_re, sizeof(t_float)*size);
-    f_im=(t_float*)realloc(f_im, sizeof(t_float)*size);
-    list_re=(t_atom*)realloc(list_re, sizeof(t_atom)*(size+2));
-
-    x->size = size;
-    x->size2 = size2;
-    x->rows = rows;
-    x->columns = columns;
-    x->columns_re = columns_re;
-    x->list_re = list_re;
-    x->f_re = f_re;
-    x->f_im = f_im;
-      
-    /* main part: reading imaginary part */
-    ifft_count = rows;
-    x->renorm_fac = 1.0f / columns;
-    while (ifft_count--) {
-      readFloatFromList (columns_re, argv, f_im);
-      argv += columns_re;
-      f_im += columns;
-    }
-    /* do nothing else! */
-  }
-  else
-    post("mtx_rowrifft: rowvector 2*(size+1) no power of 2!");
-}
-
-static void mTXrowrifftMatrixHot (MTXRowrifft *x, t_symbol *s, 
-				  int argc, t_atom *argv)
-{
-  int rows = atom_getint (argv++);
-  int columns_re = atom_getint (argv++);
-  int columns = x->columns;
-  int size = x->size;
-  int in_size = argc-2;
-  int size2 = x->size2;
-  int ifft_count;
-  t_atom *ptr_re = x->list_re;
-  t_float *f_re = x->f_re;
-  t_float *f_im = x->f_im;
-  t_float renorm_fac = x->renorm_fac;
-
-  /* ifftsize check */
-  if ((rows != x->rows) || 
-      (columns_re != x->columns_re))
-    post("mtx_rowrifft: matrix dimensions do not match");
-  else if (in_size<size2)
-    post("mtx_rowrifft: sparse matrix not yet supported: use \"mtx_check\"");
-  else if (!x->size2)
-    post("mtx_rowrifft: invalid right side matrix");
-  else { /* main part */
-    ifft_count = rows;
-    ptr_re += 2;
-    while (ifft_count--){ 
-      readFloatFromList (columns_re, argv, f_re);
-      ifftPrepareReal (columns, f_re, f_im);
-      mayer_realifft (columns, f_re);
-      multiplyVector (columns, f_re, renorm_fac);
-      f_im += columns;
-      f_re += columns;
-      ptr_re += columns;
-      argv += columns_re;
-    }
-    ptr_re = x->list_re;
-    f_re = x->f_re;
-    size2 = x->size2;
-
-    SETSYMBOL(ptr_re, gensym("matrix"));
-    SETFLOAT(ptr_re, rows);
-    SETFLOAT(&ptr_re[1], x->columns);
-    writeFloatIntoList (size, ptr_re+2, f_re);
-    outlet_anything(x->list_re_out, gensym("matrix"), size+2, ptr_re);
-  }
-}
-
-static void mTXrowrifftBang (MTXRowrifft *x)
-{
-  if (x->list_re)
-    outlet_anything(x->list_re_out, gensym("matrix"), 
-		    x->size+2, x->list_re);
-}
-
-
-static void deleteMTXRowrifft (MTXRowrifft *x) 
-{
-  if (x->f_re)
-     free(x->f_re);
-  if (x->f_im)
-     free(x->f_im);
-  if (x->list_re)
-     free(x->list_re);
-  if (x->list_im)
-     free(x->list_im);
-}
-
-static void mtx_rowrifft_setup (void)
-{
-  mtx_rowrifft_class = class_new 
-    (gensym("mtx_rowrifft"),
-     (t_newmethod) newMTXRowrifft,
-     (t_method) deleteMTXRowrifft,
-     sizeof (MTXRowrifft),
-     CLASS_DEFAULT, A_GIMME, 0);
-  class_addbang (mtx_rowrifft_class, (t_method) mTXrowrifftBang);
-  class_addmethod (mtx_rowrifft_class, (t_method) mTXrowrifftMatrixHot, gensym("matrix"), A_GIMME,0);
-  class_addmethod (mtx_rowrifft_class, (t_method) mTXrowrifftMatrixCold, gensym(""), A_GIMME,0);
-}
-
-void iemtx_rowrifft_setup(void){
-  mtx_rowrifft_setup();
-}