/*
 *  iemmatrix
 *
 *  objects for manipulating simple matrices
 *  mostly refering to matlab/octave matrix functions
 *
 * (c) IOhannes m zmölnig, forum::für::umläute
 * 
 * IEM, Graz
 *
 * this code is published under the LGPL
 *
 */
#include "iemmatrix.h"

/* mtx_transpose */
static t_class *mtx_transpose_class;

static void mtx_transpose_matrix(t_matrix *x, t_symbol *s, int argc, t_atom *argv)
{
  int row=atom_getfloat(argv++);
  int col=atom_getfloat(argv++);
  t_atom *ap;
  int r, c;

  if(row*col>argc-2) {
    post("mtx_transpose: sparse matrices not yet supported : use \"mtx_check\"");
    return;
  }
  if (col*row!=x->col*x->row) {
    freebytes(x->atombuffer, (x->col*x->row+2)*sizeof(t_atom));
    x->atombuffer = (t_atom *)getbytes((row*col+2)*sizeof(t_atom));
  }
  ap = x->atombuffer+2;
  setdimen(x, col, row);
  r = row;
  while(r--){
    c=col;
    while(c--) {
      t_float f = atom_getfloat(argv+r*col+c);
      SETFLOAT(ap+c*row+r, f);
    }
  }
    
  matrix_bang(x);
}

static void *mtx_transpose_new(t_symbol *s, int argc, t_atom *argv)
{
  t_matrix *x = (t_matrix *)pd_new(mtx_transpose_class);
  outlet_new(&x->x_obj, 0);
  x->col=x->row=0;
  x->atombuffer=0;
  return (x);
}
void mtx_transpose_setup(void)
{
  mtx_transpose_class = class_new(gensym("mtx_transpose"), (t_newmethod)mtx_transpose_new, 
				  (t_method)matrix_free, sizeof(t_matrix), 0, A_GIMME, 0);
  class_addbang  (mtx_transpose_class, matrix_bang);
  class_addmethod(mtx_transpose_class, (t_method)mtx_transpose_matrix, gensym("matrix"), A_GIMME, 0);
  class_sethelpsymbol(mtx_transpose_class, gensym("iemmatrix/mtx_transpose"));
}

void iemtx_transpose_setup(void){
  mtx_transpose_setup();
}