[PD-cvs] externals/iem/iem_tab/src iem_tab.c, NONE, 1.1 iem_tab.dsp, NONE, 1.1 iem_tab.dsw, NONE, 1.1 iem_tab.h, NONE, 1.1 iemlib.h, NONE, 1.1 makefile, NONE, 1.1 makefile_win, NONE, 1.1 tab_abs.c, NONE, 1.1 tab_add.c, NONE, 1.1 tab_add_scalar.c, NONE, 1.1 tab_complex_inv.c, NONE, 1.1 tab_complex_mul.c, NONE, 1.1 tab_const.c, NONE, 1.1 tab_conv.c, NONE, 1.1 tab_copy.c, NONE, 1.1 tab_counter.c, NONE, 1.1 tab_cross_corr.c, NONE, 1.1 tab_div.c, NONE, 1.1 tab_eq.c, NONE, 1.1 tab_eq_scalar.c, NONE, 1.1 tab_fft.c, NONE, 1.1 tab_find_peaks.c, NONE, 1.1 tab_ge.c, NONE, 1.1 tab_ge_scalar.c, NONE, 1.1 tab_gt.c, NONE, 1.1 tab_gt_scalar.c, NONE, 1.1 tab_ifft.c, NONE, 1.1 tab_le.c, NONE, 1.1 tab_le_scalar.c, NONE, 1.1 tab_lt.c, NONE, 1.1 tab_lt_scalar.c, NONE, 1.1 tab_max_index.c, NONE, 1.1 tab_mean.c, NONE, 1.1 tab_min_index.c, NONE, 1.1 tab_min_max.c, NONE, 1.1 tab_mls.c, NONE, 1.1 tab_mul.c, NONE, 1.1 tab_mul_scalar.c, NONE, 1.1 tab_ne.c, NONE, 1.1 tab_ne_scalar.c, NONE, 1.1 tab_reverse.c, NONE, 1.1 tab_rfft.c, NONE, 1.1 tab_rifft.c, NONE, 1.1 tab_sin.c, NONE, 1.1 tab_sqrt.c, NONE, 1.1 tab_sub.c, NONE, 1.1 tab_sum.c, NONE, 1.1

musil tmusil at users.sourceforge.net
Fri Mar 10 04:05:57 CET 2006


Update of /cvsroot/pure-data/externals/iem/iem_tab/src
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv5595/iem/iem_tab/src

Added Files:
	iem_tab.c iem_tab.dsp iem_tab.dsw iem_tab.h iemlib.h makefile 
	makefile_win tab_abs.c tab_add.c tab_add_scalar.c 
	tab_complex_inv.c tab_complex_mul.c tab_const.c tab_conv.c 
	tab_copy.c tab_counter.c tab_cross_corr.c tab_div.c tab_eq.c 
	tab_eq_scalar.c tab_fft.c tab_find_peaks.c tab_ge.c 
	tab_ge_scalar.c tab_gt.c tab_gt_scalar.c tab_ifft.c tab_le.c 
	tab_le_scalar.c tab_lt.c tab_lt_scalar.c tab_max_index.c 
	tab_mean.c tab_min_index.c tab_min_max.c tab_mls.c tab_mul.c 
	tab_mul_scalar.c tab_ne.c tab_ne_scalar.c tab_reverse.c 
	tab_rfft.c tab_rifft.c tab_sin.c tab_sqrt.c tab_sub.c 
	tab_sum.c 
Log Message:
initial check in

--- NEW FILE: iem_tab.dsw ---
(This appears to be a binary file; contents omitted.)

--- NEW FILE: tab_min_max.c ---
/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.

iem_tab written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */

#ifdef NT
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif


#include "m_pd.h"
#include "iemlib.h"
#include "iem_tab.h"
#include <math.h>
#include <stdio.h>
#include <string.h>


/* -------------------------- tab_min_max ------------------------------ */

typedef struct _tab_min_max
{
	t_object	x_obj;
	int				x_size_src1;
	int				x_offset_src1;
	float			*x_beg_mem_src1;
	t_symbol	*x_sym_scr1;
	void			*x_bang_out;
	void			*x_min_out;
	void			*x_max_out;
} t_tab_min_max;

static t_class *tab_min_max_class;

static void tab_min_max_src(t_tab_min_max *x, t_symbol *s)
{
	x->x_sym_scr1 = s;
}

static void tab_min_max_bang(t_tab_min_max *x)
{
	int i, n;
	int ok_src;
	t_float *vec_src;
	t_float min=1.0e37, max=-1.0e37;

	ok_src = iem_tab_check_arrays(gensym("tab_min_max"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, 0);

	if(ok_src)
	{
		n = x->x_size_src1;
		vec_src = x->x_beg_mem_src1;
		if(n)
		{
			for(i=0; i<n; i++)
			{
				if(vec_src[i] > max)
					max = vec_src[i];
				if(vec_src[i] < min)
					min = vec_src[i];
			}
			outlet_float(x->x_max_out, max);
			outlet_float(x->x_min_out, min);
			outlet_bang(x->x_bang_out);
		}
	}
}

static void tab_min_max_list(t_tab_min_max *x, t_symbol *s, int argc, t_atom *argv)
{
	int beg_src;
	int i, n;
	int ok_src;
	t_float *vec_src;
	t_float min=1.0e37, max=-1.0e37;

	if((argc >= 2) &&
		IS_A_FLOAT(argv,0) &&
		IS_A_FLOAT(argv,1))
	{
		beg_src = (int)atom_getintarg(0, argc, argv);
		n = (int)atom_getintarg(1, argc, argv);
		if(beg_src < 0)
			beg_src = 0;
		if(n < 0)
			n = 0;

		ok_src = iem_tab_check_arrays(gensym("tab_min_max"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, beg_src+n);

		if(ok_src)
		{
			vec_src = x->x_beg_mem_src1 + beg_src;
			if(n)
			{
				for(i=0; i<n; i++)
				{
					if(vec_src[i] > max)
						max = vec_src[i];
					if(vec_src[i] < min)
						min = vec_src[i];
				}
				outlet_float(x->x_max_out, max);
				outlet_float(x->x_min_out, min);
				outlet_bang(x->x_bang_out);
			}
		}
	}
	else
	{
		post("tab_min_max-ERROR: list need 2 float arguments:");
		post("  source_offset + number_of_samples_to_calc_min_max");
	}
}

static void tab_min_max_free(t_tab_min_max *x)
{
}

static void *tab_min_max_new(t_symbol *s, int argc, t_atom *argv)
{
	t_tab_min_max *x = (t_tab_min_max *)pd_new(tab_min_max_class);
	t_symbol	*src;

	if((argc >= 1) &&
		IS_A_SYMBOL(argv,0))
	{
		src = (t_symbol *)atom_getsymbolarg(0, argc, argv);
	}
	else
	{
		post("tab_min_max-ERROR: need 1 symbol argument:");
		post("  source_array_name");
		return(0);
	}

	x->x_sym_scr1 = src;
	x->x_bang_out = outlet_new(&x->x_obj, &s_bang);
	x->x_min_out = outlet_new(&x->x_obj, &s_float);
	x->x_max_out = outlet_new(&x->x_obj, &s_float);
	return(x);
}

void tab_min_max_setup(void)
{
	tab_min_max_class = class_new(gensym("tab_min_max"), (t_newmethod)tab_min_max_new, (t_method)tab_min_max_free,
					 sizeof(t_tab_min_max), 0, A_GIMME, 0);
	class_addbang(tab_min_max_class, (t_method)tab_min_max_bang);
	class_addlist(tab_min_max_class, (t_method)tab_min_max_list);
	class_addmethod(tab_min_max_class, (t_method)tab_min_max_src, gensym("src"), A_DEFSYMBOL, 0);
	class_addmethod(tab_min_max_class, (t_method)tab_min_max_src, gensym("src1"), A_DEFSYMBOL, 0);
	class_sethelpsymbol(tab_min_max_class, gensym("iemhelp2/tab_min_max-help"));
}

--- NEW FILE: makefile ---
current: all

.SUFFIXES: .pd_linux

INCLUDE = -I. -I/usr/local/src/pd/src

LDFLAGS = -export-dynamic -shared
LIB = -ldl -lm -lpthread

#select either the DBG and OPT compiler flags below:

CFLAGS = -DPD -DUNIX -W -Werror -Wno-unused \
	-Wno-parentheses -Wno-switch -O6 -funroll-loops -fomit-frame-pointer \
        -DDL_OPEN

SYSTEM = $(shell uname -m)

# the sources

SRC = tab_copy.c \
	tab_reverse.c \
	tab_min_max.c \
	tab_min_index.c \
	tab_max_index.c \
	tab_find_peaks.c \
	tab_abs.c \
	tab_sqrt.c \
	tab_sum.c \
	tab_add.c \
	tab_sub.c \
	tab_mul.c \
	tab_div.c \
	tab_complex_mul.c \
	tab_complex_inv.c \
	tab_add_scalar.c \
	tab_mul_scalar.c \
	tab_const.c \
	tab_fft.c \
	tab_ifft.c \
	tab_rfft.c \
	tab_rifft.c \
	tab_cross_corr.c \
	tab_conv.c \
	tab_gt_scalar.c \
	tab_ge_scalar.c \
	tab_lt_scalar.c \
	tab_le_scalar.c \
	tab_ne_scalar.c \
	tab_eq_scalar.c \
	tab_gt.c \
	tab_ge.c \
	tab_lt.c \
	tab_le.c \
	tab_ne.c \
	tab_eq.c \
	tab_counter.c \
	iem_tab.c

TARGET = iem_tab.pd_linux


OBJ = $(SRC:.c=.o) 

#
#  ------------------ targets ------------------------------------
#

clean:
	rm $(TARGET)
	rm *.o

all: $(OBJ)
	@echo :: $(OBJ)
	ld $(LDFLAGS) -o $(TARGET) *.o $(LIB)
	strip --strip-unneeded $(TARGET)

$(OBJ) : %.o : %.c
	touch $*.c
	cc $(CFLAGS) $(INCLUDE) -c -o $*.o $*.c





--- NEW FILE: tab_mul.c ---
/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.

iem_tab written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */

#ifdef NT
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif


#include "m_pd.h"
#include "iemlib.h"
#include "iem_tab.h"
#include <math.h>
#include <stdio.h>
#include <string.h>


/* -------------------------- tab_mul ------------------------------ */

typedef struct _tab_mul
{
	t_object	x_obj;
	int				x_size_src1;
	int				x_size_src2;
	int				x_size_dst;
	int				x_offset_src1;
	int				x_offset_src2;
	int				x_offset_dst;
	float			*x_beg_mem_src1;
	float			*x_beg_mem_src2;
	float			*x_beg_mem_dst;
	t_symbol	*x_sym_scr1;
	t_symbol	*x_sym_scr2;
	t_symbol	*x_sym_dst;
} t_tab_mul;

static t_class *tab_mul_class;

static void tab_mul_src1(t_tab_mul *x, t_symbol *s)
{
	x->x_sym_scr1 = s;
}

static void tab_mul_src2(t_tab_mul *x, t_symbol *s)
{
	x->x_sym_scr2 = s;
}

static void tab_mul_dst(t_tab_mul *x, t_symbol *s)
{
	x->x_sym_dst = s;
}

static void tab_mul_bang(t_tab_mul *x)
{
	int i, n;
	int ok_src1, ok_src2, ok_dst;
	t_float *vec_src1, *vec_src2, *vec_dst;

	ok_src1 = iem_tab_check_arrays(gensym("tab_mul"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, 0);
	ok_src2 = iem_tab_check_arrays(gensym("tab_mul"), x->x_sym_scr2, &x->x_beg_mem_src2, &x->x_size_src2, 0);
	ok_dst = iem_tab_check_arrays(gensym("tab_mul"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, 0);

	if(ok_src1 && ok_src2 && ok_dst)
	{
		if(x->x_size_src1 < x->x_size_dst)
			n = x->x_size_src1;
		else
			n = x->x_size_dst;
		if(x->x_size_src2 < n)
			n = x->x_size_src2;

		vec_src1 = x->x_beg_mem_src1;
		vec_src2 = x->x_beg_mem_src2;
		vec_dst = x->x_beg_mem_dst;
		if(n)
		{
			t_garray *a;

			for(i=0; i<n; i++)
				vec_dst[i] = vec_src1[i]*vec_src2[i];
			outlet_bang(x->x_obj.ob_outlet);
			a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
			garray_redraw(a);
		}
	}
}

static void tab_mul_list(t_tab_mul *x, t_symbol *s, int argc, t_atom *argv)
{
	int beg_src1, beg_src2, beg_dst;
	int i, n;
	int ok_src1, ok_src2, ok_dst;
	t_float *vec_src1, *vec_src2, *vec_dst;

	if((argc >= 4) &&
		IS_A_FLOAT(argv,0) &&
		IS_A_FLOAT(argv,1) &&
		IS_A_FLOAT(argv,2) &&
		IS_A_FLOAT(argv,3))
	{
		beg_src1 = (int)atom_getintarg(0, argc, argv);
		beg_src2 = (int)atom_getintarg(1, argc, argv);
		beg_dst = (int)atom_getintarg(2, argc, argv);
		n = (int)atom_getintarg(3, argc, argv);
		if(beg_src1 < 0)
			beg_src1 = 0;
		if(beg_src2 < 0)
			beg_src2 = 0;
		if(beg_dst < 0)
			beg_dst = 0;
		if(n < 0)
			n = 0;

		ok_src1 = iem_tab_check_arrays(gensym("tab_mul"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, beg_src1+n);
		ok_src2 = iem_tab_check_arrays(gensym("tab_mul"), x->x_sym_scr2, &x->x_beg_mem_src2, &x->x_size_src2, beg_src2+n);
		ok_dst = iem_tab_check_arrays(gensym("tab_mul"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, beg_dst+n);

		if(ok_src1 && ok_src2 && ok_dst)
		{
			vec_src1 = x->x_beg_mem_src1 + beg_src1;
			vec_src2 = x->x_beg_mem_src2 + beg_src2;
			vec_dst = x->x_beg_mem_dst + beg_dst;
			if(n)
			{
				t_garray *a;

				for(i=0; i<n; i++)
					vec_dst[i] = vec_src1[i]*vec_src2[i];
				outlet_bang(x->x_obj.ob_outlet);
				a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
				garray_redraw(a);
			}
		}
	}
	else
	{
		post("tab_mul-ERROR: list need 4 float arguments:");
		post("  source1_offset + source2_offset + destination_offset + number_of_samples_to_mul");
	}
}

static void tab_mul_free(t_tab_mul *x)
{
}

static void *tab_mul_new(t_symbol *s, int argc, t_atom *argv)
{
	t_tab_mul *x = (t_tab_mul *)pd_new(tab_mul_class);
	t_symbol	*src1, *src2, *dst;
	t_float time;

	if((argc >= 3) &&
		IS_A_SYMBOL(argv,0) &&
		IS_A_SYMBOL(argv,1) &&
		IS_A_SYMBOL(argv,2))
	{
		src1 = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		src2 = (t_symbol *)atom_getsymbolarg(1, argc, argv);
		dst = (t_symbol *)atom_getsymbolarg(2, argc, argv);
	}
	else if((argc >= 2) &&
		IS_A_SYMBOL(argv,0) &&
		IS_A_SYMBOL(argv,1))
	{
		src1 = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		dst = src1;
		src2 = (t_symbol *)atom_getsymbolarg(1, argc, argv);
	}
	else
	{
		post("tab_mul-ERROR: need 3 symbols arguments:");
		post("  source1_array_name + source2_array_name + destination_array_name");
		return(0);
	}

	x->x_sym_scr1 = src1;
	x->x_sym_scr2 = src2;
	x->x_sym_dst = dst;
	outlet_new(&x->x_obj, &s_bang);
	return(x);
}

void tab_mul_setup(void)
{
	tab_mul_class = class_new(gensym("tab_mul"), (t_newmethod)tab_mul_new, (t_method)tab_mul_free,
					 sizeof(t_tab_mul), 0, A_GIMME, 0);
	class_addbang(tab_mul_class, (t_method)tab_mul_bang);
	class_addlist(tab_mul_class, (t_method)tab_mul_list);
	class_addmethod(tab_mul_class, (t_method)tab_mul_src1, gensym("src1"), A_DEFSYMBOL, 0);
	class_addmethod(tab_mul_class, (t_method)tab_mul_src2, gensym("src2"), A_DEFSYMBOL, 0);
	class_addmethod(tab_mul_class, (t_method)tab_mul_dst, gensym("dst"), A_DEFSYMBOL, 0);
	class_sethelpsymbol(tab_mul_class, gensym("iemhelp2/tab_mul-help"));
}

--- NEW FILE: makefile_win ---

all: iem_tab.dll

VIS_CPP_PATH = "C:\Programme\Microsoft Visual Studio\Vc98"

PD_INST_PATH = "C:\Programme\pd"

PD_WIN_INCLUDE_PATH = /I. /I$(PD_INST_PATH)\src /I$(VIS_CPP_PATH)\include

PD_WIN_C_FLAGS = /nologo /W3 /WX /DMSW /DNT /DPD /DWIN32 /DWINDOWS /Ox -DPA_LITTLE_ENDIAN

PD_WIN_L_FLAGS = /nologo

PD_WIN_LIB = /NODEFAULTLIB:libc /NODEFAULTLIB:oldnames /NODEFAULTLIB:kernel /NODEFAULTLIB:uuid \
	$(VIS_CPP_PATH)\lib\libc.lib \
	$(VIS_CPP_PATH)\lib\oldnames.lib \
	$(VIS_CPP_PATH)\lib\kernel32.lib \
	$(VIS_CPP_PATH)\lib\wsock32.lib \
	$(VIS_CPP_PATH)\lib\winmm.lib \
	$(PD_INST_PATH)\bin\pd.lib


SRC =	tab_copy.c \
	tab_reverse.c \
	tab_min_max.c \
	tab_min_index.c \
	tab_max_index.c \
	tab_find_peaks.c \
	tab_abs.c \
	tab_sqrt.c \
	tab_sum.c \
	tab_add.c \
	tab_sub.c \
	tab_mul.c \
	tab_div.c \
	tab_complex_mul.c \
	tab_complex_inv.c \
	tab_add_scalar.c \
	tab_mul_scalar.c \
	tab_const.c \
	tab_fft.c \
	tab_ifft.c \
	tab_rfft.c \
	tab_rifft.c \
	tab_cross_corr.c \
	tab_conv.c \
	tab_gt_scalar.c \
	tab_ge_scalar.c \
	tab_lt_scalar.c \
	tab_le_scalar.c \
	tab_ne_scalar.c \
	tab_eq_scalar.c \
	tab_gt.c \
	tab_ge.c \
	tab_lt.c \
	tab_le.c \
	tab_ne.c \
	tab_eq.c \
	tab_counter.c \
	iem_tab.c


OBJ = $(SRC:.c=.obj)

.c.obj:
	cl $(PD_WIN_C_FLAGS) $(PD_WIN_INCLUDE_PATH) /c $*.c

iem_tab.dll: $(OBJ)
	link $(PD_WIN_L_FLAGS) /dll /export:iem_tab_setup \
	/out:iem_tab.dll $(OBJ) $(PD_WIN_LIB)

clean:
	del *.obj

--- NEW FILE: tab_gt.c ---
/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.

iem_tab written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */

#ifdef NT
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif


#include "m_pd.h"
#include "iemlib.h"
#include "iem_tab.h"
#include <math.h>
#include <stdio.h>
#include <string.h>


/* -------------------------- tab_gt ------------------------------ */

typedef struct _tab_gt
{
	t_object	x_obj;
	int				x_size_src1;
	int				x_size_src2;
	int				x_size_dst;
	int				x_offset_src1;
	int				x_offset_src2;
	int				x_offset_dst;
	float			*x_beg_mem_src1;
	float			*x_beg_mem_src2;
	float			*x_beg_mem_dst;
	t_symbol	*x_sym_scr1;
	t_symbol	*x_sym_scr2;
	t_symbol	*x_sym_dst;
} t_tab_gt;

static t_class *tab_gt_class;

static void tab_gt_src1(t_tab_gt *x, t_symbol *s)
{
	x->x_sym_scr1 = s;
}

static void tab_gt_src2(t_tab_gt *x, t_symbol *s)
{
	x->x_sym_scr2 = s;
}

static void tab_gt_dst(t_tab_gt *x, t_symbol *s)
{
	x->x_sym_dst = s;
}

static void tab_gt_bang(t_tab_gt *x)
{
	int i, n;
	int ok_src1, ok_src2, ok_dst;
	t_float *vec_src1, *vec_src2, *vec_dst;

	ok_src1 = iem_tab_check_arrays(gensym("tab_gt"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, 0);
	ok_src2 = iem_tab_check_arrays(gensym("tab_gt"), x->x_sym_scr2, &x->x_beg_mem_src2, &x->x_size_src2, 0);
	ok_dst = iem_tab_check_arrays(gensym("tab_gt"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, 0);

	if(ok_src1 && ok_src2 && ok_dst)
	{
		if(x->x_size_src1 < x->x_size_dst)
			n = x->x_size_src1;
		else
			n = x->x_size_dst;
		if(x->x_size_src2 < n)
			n = x->x_size_src2;

		vec_src1 = x->x_beg_mem_src1;
		vec_src2 = x->x_beg_mem_src2;
		vec_dst = x->x_beg_mem_dst;
		if(n)
		{
			t_garray *a;

			for(i=0; i<n; i++)
      {
        if(vec_src1[i] > vec_src2[i])
				  vec_dst[i] = 1.0f;
        else
				  vec_dst[i] = 0.0f;
      }
			outlet_bang(x->x_obj.ob_outlet);
			a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
			garray_redraw(a);
		}
	}
}

static void tab_gt_list(t_tab_gt *x, t_symbol *s, int argc, t_atom *argv)
{
	int beg_src1, beg_src2, beg_dst;
	int i, n;
	int ok_src1, ok_src2, ok_dst;
	t_float *vec_src1, *vec_src2, *vec_dst;

	if((argc >= 4) &&
		IS_A_FLOAT(argv,0) &&
		IS_A_FLOAT(argv,1) &&
		IS_A_FLOAT(argv,2) &&
		IS_A_FLOAT(argv,3))
	{
		beg_src1 = (int)atom_getintarg(0, argc, argv);
		beg_src2 = (int)atom_getintarg(1, argc, argv);
		beg_dst = (int)atom_getintarg(2, argc, argv);
		n = (int)atom_getintarg(3, argc, argv);
		if(beg_src1 < 0)
			beg_src1 = 0;
		if(beg_src2 < 0)
			beg_src2 = 0;
		if(beg_dst < 0)
			beg_dst = 0;
		if(n < 0)
			n = 0;

		ok_src1 = iem_tab_check_arrays(gensym("tab_gt"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, beg_src1+n);
		ok_src2 = iem_tab_check_arrays(gensym("tab_gt"), x->x_sym_scr2, &x->x_beg_mem_src2, &x->x_size_src2, beg_src2+n);
		ok_dst = iem_tab_check_arrays(gensym("tab_gt"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, beg_dst+n);

		if(ok_src1 && ok_src2 && ok_dst)
		{
			vec_src1 = x->x_beg_mem_src1 + beg_src1;
			vec_src2 = x->x_beg_mem_src2 + beg_src2;
			vec_dst = x->x_beg_mem_dst + beg_dst;
			if(n)
			{
				t_garray *a;

				for(i=0; i<n; i++)
        {
          if(vec_src1[i] > vec_src2[i])
				    vec_dst[i] = 1.0f;
          else
				    vec_dst[i] = 0.0f;
        }
				outlet_bang(x->x_obj.ob_outlet);
				a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
				garray_redraw(a);
			}
		}
	}
	else
	{
		post("tab_gt-ERROR: list need 4 float arguments:");
		post("  source1_offset + source2_offset + destination_offset + number_of_samples_to_compare");
	}
}

static void tab_gt_free(t_tab_gt *x)
{
}

static void *tab_gt_new(t_symbol *s, int argc, t_atom *argv)
{
	t_tab_gt *x = (t_tab_gt *)pd_new(tab_gt_class);
	t_symbol	*src1, *src2, *dst;
	t_float time;

	if((argc >= 3) &&
		IS_A_SYMBOL(argv,0) &&
		IS_A_SYMBOL(argv,1) &&
		IS_A_SYMBOL(argv,2))
	{
		src1 = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		src2 = (t_symbol *)atom_getsymbolarg(1, argc, argv);
		dst = (t_symbol *)atom_getsymbolarg(2, argc, argv);
	}
	else if((argc >= 2) &&
		IS_A_SYMBOL(argv,0) &&
		IS_A_SYMBOL(argv,1))
	{
		src1 = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		dst = src1;
		src2 = (t_symbol *)atom_getsymbolarg(1, argc, argv);
	}
	else
	{
		post("tab_gt-ERROR: need 3 symbols arguments:");
		post("  source1_array_name + source2_array_name + destination_array_name");
		return(0);
	}

	x->x_sym_scr1 = src1;
	x->x_sym_scr2 = src2;
	x->x_sym_dst = dst;
	outlet_new(&x->x_obj, &s_bang);
	return(x);
}

void tab_gt_setup(void)
{
	tab_gt_class = class_new(gensym("tab_gt"), (t_newmethod)tab_gt_new, (t_method)tab_gt_free,
					 sizeof(t_tab_gt), 0, A_GIMME, 0);
	class_addbang(tab_gt_class, (t_method)tab_gt_bang);
	class_addlist(tab_gt_class, (t_method)tab_gt_list);
	class_addmethod(tab_gt_class, (t_method)tab_gt_src1, gensym("src1"), A_DEFSYMBOL, 0);
	class_addmethod(tab_gt_class, (t_method)tab_gt_src2, gensym("src2"), A_DEFSYMBOL, 0);
	class_addmethod(tab_gt_class, (t_method)tab_gt_dst, gensym("dst"), A_DEFSYMBOL, 0);
	class_sethelpsymbol(tab_gt_class, gensym("iemhelp2/tab_gt-help"));
}

--- NEW FILE: tab_copy.c ---
/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.

iem_tab written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */

#ifdef NT
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif


#include "m_pd.h"
#include "iemlib.h"
#include "iem_tab.h"
#include <math.h>
#include <stdio.h>
#include <string.h>


/* -------------------------- tab_copy ------------------------------ */

typedef struct _tab_copy
{
	t_object	x_obj;
	int				x_size_src1;
	int				x_size_dst;
	int				x_offset_src1;
	int				x_offset_dst;
	float			*x_beg_mem_src1;
	float			*x_beg_mem_dst;
	t_symbol	*x_sym_scr1;
	t_symbol	*x_sym_dst;
} t_tab_copy;

static t_class *tab_copy_class;

static void tab_copy_src(t_tab_copy *x, t_symbol *s)
{
	x->x_sym_scr1 = s;
}

static void tab_copy_dst(t_tab_copy *x, t_symbol *s)
{
	x->x_sym_dst = s;
}

static void tab_copy_bang(t_tab_copy *x)
{
	int i, n;
	int ok_src, ok_dst;
	t_float *vec_src, *vec_dst;

	ok_src = iem_tab_check_arrays(gensym("tab_copy"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, 0);
	ok_dst = iem_tab_check_arrays(gensym("tab_copy"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, 0);

	if(ok_src && ok_dst)
	{
		if(x->x_size_src1 < x->x_size_dst)
			n = x->x_size_src1;
		else
			n = x->x_size_dst;
		vec_src = x->x_beg_mem_src1;
		vec_dst = x->x_beg_mem_dst;
		if(n)
		{
			t_garray *a;

			for(i=0; i<n; i++)
				vec_dst[i] = vec_src[i];
			outlet_bang(x->x_obj.ob_outlet);
			a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
			garray_redraw(a);
		}
	}
}

static void tab_copy_list(t_tab_copy *x, t_symbol *s, int argc, t_atom *argv)
{
	int beg_src, beg_dst;
	int i, n;
	int ok_src, ok_dst;
	t_float *vec_src, *vec_dst;

	if((argc >= 3) &&
		IS_A_FLOAT(argv,0) &&
		IS_A_FLOAT(argv,1) &&
		IS_A_FLOAT(argv,2))
	{
		beg_src = (int)atom_getintarg(0, argc, argv);
		beg_dst = (int)atom_getintarg(1, argc, argv);
		n = (int)atom_getintarg(2, argc, argv);
		if(beg_src < 0)
			beg_src = 0;
		if(beg_dst < 0)
			beg_dst = 0;
		if(n < 0)
			n = 0;

		ok_src = iem_tab_check_arrays(gensym("tab_copy"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, beg_src+n);
		ok_dst = iem_tab_check_arrays(gensym("tab_copy"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, beg_dst+n);

		if(ok_src && ok_dst)
		{
			vec_src = x->x_beg_mem_src1 + beg_src;
			vec_dst = x->x_beg_mem_dst + beg_dst;
			if(n)
			{
				t_garray *a;

				for(i=0; i<n; i++)
					vec_dst[i] = vec_src[i];
				outlet_bang(x->x_obj.ob_outlet);
				a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
				garray_redraw(a);
			}
		}
	}
	else
	{
		post("tab_copy-ERROR: list need 3 float arguments:");
		post("  source_offset + destination_offset + number_of_samples_to_copy");
	}
}

static void tab_copy_free(t_tab_copy *x)
{
}

static void *tab_copy_new(t_symbol *s, int argc, t_atom *argv)
{
	t_tab_copy *x = (t_tab_copy *)pd_new(tab_copy_class);
	t_symbol	*src, *dst;

	if((argc >= 2) &&
		IS_A_SYMBOL(argv,0) &&
		IS_A_SYMBOL(argv,1))
	{
		src = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		dst = (t_symbol *)atom_getsymbolarg(1, argc, argv);
	}
	else if((argc >= 1) &&
		IS_A_SYMBOL(argv,0))
	{
		src = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		dst = src;
	}
	else
	{
		post("tab_copy-ERROR: need 2 symbols arguments:");
		post("  source_array_name + destination_array_name");
		return(0);
	}

	x->x_sym_scr1 = src;
	x->x_sym_dst = dst;
	outlet_new(&x->x_obj, &s_bang);
	return(x);
}

void tab_copy_setup(void)
{
	tab_copy_class = class_new(gensym("tab_copy"), (t_newmethod)tab_copy_new, (t_method)tab_copy_free,
					 sizeof(t_tab_copy), 0, A_GIMME, 0);
	class_addbang(tab_copy_class, (t_method)tab_copy_bang);
	class_addlist(tab_copy_class, (t_method)tab_copy_list);
	class_addmethod(tab_copy_class, (t_method)tab_copy_src, gensym("src"), A_DEFSYMBOL, 0);
	class_addmethod(tab_copy_class, (t_method)tab_copy_src, gensym("src1"), A_DEFSYMBOL, 0);
	class_addmethod(tab_copy_class, (t_method)tab_copy_dst, gensym("dst"), A_DEFSYMBOL, 0);
	class_sethelpsymbol(tab_copy_class, gensym("iemhelp2/tab_copy-help"));
}

--- NEW FILE: iem_tab.c ---
/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.

iem_tab written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */

#ifdef NT
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif


#include "m_pd.h"
#include "iemlib.h"

static t_class *iem_tab_class;

int iem_tab_check_arrays(t_symbol *obj_name, t_symbol *array_name, t_float **beg_mem, int *array_size, int max_index)
{
	int ok=1;
	t_garray *a;

	if(!(a = (t_garray *)pd_findbyclass(array_name, garray_class)))
	{
		error("%s: no such array", array_name->s_name);
		ok = 0;
	}
	else if(!garray_getfloatarray(a, array_size, beg_mem))
	{
		error("%s: bad template for %s", array_name->s_name, obj_name->s_name);
		ok = 0;
	}
	else if(*array_size < max_index)
	{
		error("%s: bad array-size: %d", array_name->s_name, *array_size);
		ok = 0;
	}
	return(ok);
}

static void *iem_tab_new(void)
{
	t_object *x = (t_object *)pd_new(iem_tab_class);
    
	return (x);
}

void tab_copy_setup(void);
void tab_reverse_setup(void);
void tab_min_max_setup(void);
void tab_min_index_setup(void);
void tab_max_index_setup(void);
void tab_find_peaks_setup(void);
void tab_abs_setup(void);
void tab_sqrt_setup(void);
void tab_sum_setup(void);
void tab_add_setup(void);
void tab_sub_setup(void);
void tab_mul_setup(void);
void tab_div_setup(void);
void tab_complex_mul_setup(void);
void tab_complex_inv_setup(void);
void tab_mul_scalar_setup(void);
void tab_add_scalar_setup(void);
void tab_const_setup(void);
void tab_fft_setup(void);
void tab_ifft_setup(void);
void tab_rfft_setup(void);
void tab_rifft_setup(void);
void tab_cross_corr_setup(void);
void tab_conv_setup(void);
void tab_gt_scalar_setup(void);
void tab_ge_scalar_setup(void);
void tab_lt_scalar_setup(void);
void tab_le_scalar_setup(void);
void tab_ne_scalar_setup(void);
void tab_eq_scalar_setup(void);
void tab_gt_setup(void);
void tab_ge_setup(void);
void tab_lt_setup(void);
void tab_le_setup(void);
void tab_ne_setup(void);
void tab_eq_setup(void);
void tab_counter_setup(void);
//void tab_mls_setup(void);

/* ------------------------ setup routine ------------------------- */

void iem_tab_setup(void)
{
	iem_tab_class = class_new(gensym("iem_tab"), iem_tab_new, 0,
    	sizeof(t_object), CLASS_NOINLET, 0);

		tab_copy_setup();
		tab_reverse_setup();
		tab_min_max_setup();
		tab_min_index_setup();
		tab_max_index_setup();
    tab_find_peaks_setup();
		tab_abs_setup();
		tab_sqrt_setup();
		tab_sum_setup();
		tab_add_setup();
		tab_sub_setup();
		tab_mul_setup();
		tab_div_setup();
		tab_complex_mul_setup();
		tab_complex_inv_setup();
		tab_mul_scalar_setup();
		tab_add_scalar_setup();
		tab_const_setup();
		tab_fft_setup();
		tab_ifft_setup();
		tab_rfft_setup();
		tab_rifft_setup();
    tab_cross_corr_setup();
    tab_conv_setup();
    tab_gt_scalar_setup();
    tab_ge_scalar_setup();
    tab_lt_scalar_setup();
    tab_le_scalar_setup();
    tab_ne_scalar_setup();
    tab_eq_scalar_setup();
    tab_gt_setup();
    tab_ge_setup();
    tab_lt_setup();
    tab_le_setup();
    tab_ne_setup();
    tab_eq_setup();
    tab_counter_setup();
//		tab_mls_setup();

    post("iem_tab (R-1.16) library loaded!   (c) Thomas Musil 05.2005");
	post("   musil%ciem.at iem KUG Graz Austria", '@');
}

--- NEW FILE: tab_mean.c ---
/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.

iem_tab written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */

#ifdef NT
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif


#include "m_pd.h"
#include "iemlib.h"
#include "iem_tab.h"
#include <math.h>
#include <stdio.h>
#include <string.h>


/* -------------------------- tab_mean ------------------------------ */

typedef struct _tab_mean
{
	t_object	x_obj;
	int				x_size_src1;
	int				x_offset_src1;
	float			*x_beg_mem_src1;
	t_symbol	*x_sym_scr1;
	void			*x_bang_out;
	void			*x_mean_out;
} t_tab_mean;

static t_class *tab_mean_class;

static void tab_mean_src(t_tab_mean *x, t_symbol *s)
{
	x->x_sym_scr1 = s;
}

static void tab_mean_bang(t_tab_mean *x)
{
	int i, n;
	int ok_src;
	t_float *vec_src;
	t_float mean=0.0f;

	ok_src = iem_tab_check_arrays(gensym("tab_mean"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, 0);

	if(ok_src)
	{
		n = x->x_size_src1;
		vec_src = x->x_beg_mem_src1;
		if(n)
		{
			for(i=0; i<n; i++)
			{
				mean += vec_src[i];
			}
			outlet_float(x->x_mean_out, mean);
			outlet_bang(x->x_bang_out);
		}
	}
}

static void tab_mean_list(t_tab_mean *x, t_symbol *s, int argc, t_atom *argv)
{
	int beg_src;
	int i, n;
	int ok_src;
	t_float *vec_src;
	t_float mean=0.0f;

	if((argc >= 2) &&
		IS_A_FLOAT(argv,0) &&
		IS_A_FLOAT(argv,1))
	{
		beg_src = (int)atom_getintarg(0, argc, argv);
		n = (int)atom_getintarg(1, argc, argv);
		if(beg_src < 0)
			beg_src = 0;
		if(n < 0)
			n = 0;

		ok_src = iem_tab_check_arrays(gensym("tab_mean"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, beg_src+n);

		if(ok_src)
		{
			vec_src = x->x_beg_mem_src1 + beg_src;
			if(n)
			{
				for(i=0; i<n; i++)
				{
					mean += vec_src[i];
				}
				outlet_float(x->x_mean_out, mean);
				outlet_bang(x->x_bang_out);
			}
		}
	}
	else
	{
		post("tab_mean-ERROR: list need 2 float arguments:");
		post("  source_offset + number_of_samples_to_calc_mean-value");
	}
}

static void tab_mean_free(t_tab_mean *x)
{
}

static void *tab_mean_new(t_symbol *s, int argc, t_atom *argv)
{
	t_tab_mean *x = (t_tab_mean *)pd_new(tab_mean_class);
	t_symbol	*src;

	if((argc >= 1) &&
		IS_A_SYMBOL(argv,0))
	{
		src = (t_symbol *)atom_getsymbolarg(0, argc, argv);
	}
	else
	{
		post("tab_mean-ERROR: need 1 symbol argument:");
		post("  source_array_name");
		return(0);
	}

	x->x_sym_scr1 = src;
	x->x_bang_out = outlet_new(&x->x_obj, &s_bang);
	x->x_mean_out = outlet_new(&x->x_obj, &s_float);
	return(x);
}

void tab_mean_setup(void)
{
	tab_mean_class = class_new(gensym("tab_mean"), (t_newmethod)tab_mean_new, (t_method)tab_mean_free,
					 sizeof(t_tab_mean), 0, A_GIMME, 0);
	class_addbang(tab_mean_class, (t_method)tab_mean_bang);
	class_addlist(tab_mean_class, (t_method)tab_mean_list);
	class_addmethod(tab_mean_class, (t_method)tab_mean_src, gensym("src"), A_DEFSYMBOL, 0);
	class_addmethod(tab_mean_class, (t_method)tab_mean_src, gensym("src1"), A_DEFSYMBOL, 0);
	class_sethelpsymbol(tab_mean_class, gensym("iemhelp2/tab_mean-help"));
}

--- NEW FILE: tab_reverse.c ---
/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.

iem_tab written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */

#ifdef NT
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif


#include "m_pd.h"
#include "iemlib.h"
#include "iem_tab.h"
#include <math.h>
#include <stdio.h>
#include <string.h>


/* -------------------------- tab_reverse ------------------------------ */

typedef struct _tab_reverse
{
	t_object	x_obj;
	int				x_size_src1;
	int				x_size_dst;
	int				x_offset_src1;
	int				x_offset_dst;
	float			*x_beg_mem_src1;
	float			*x_beg_mem_dst;
	t_symbol	*x_sym_scr1;
	t_symbol	*x_sym_dst;
} t_tab_reverse;

static t_class *tab_reverse_class;

static void tab_reverse_src(t_tab_reverse *x, t_symbol *s)
{
	x->x_sym_scr1 = s;
}

static void tab_reverse_dst(t_tab_reverse *x, t_symbol *s)
{
	x->x_sym_dst = s;
}

static void tab_reverse_bang(t_tab_reverse *x)
{
	int i, j, n;
	int ok_src, ok_dst;
	t_float *vec_src, *vec_dst;

	ok_src = iem_tab_check_arrays(gensym("tab_reverse"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, 0);
	ok_dst = iem_tab_check_arrays(gensym("tab_reverse"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, 0);

	if(ok_src && ok_dst)
	{
		if(x->x_size_src1 > x->x_size_dst)
			n = x->x_size_src1;
		else
			n = x->x_size_dst;
		vec_src = x->x_beg_mem_src1;
		vec_dst = x->x_beg_mem_dst;
		if(n)
		{
			t_garray *a;

			for(i=0, j=n-1; i<n; i++, j--)
				vec_dst[i] = vec_src[j];
			outlet_bang(x->x_obj.ob_outlet);
			a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
			garray_redraw(a);
		}
	}
}

static void tab_reverse_list(t_tab_reverse *x, t_symbol *s, int argc, t_atom *argv)
{
	int beg_src, beg_dst;
	int i, j, n;
	int ok_src, ok_dst;
	t_float *vec_src, *vec_dst;

	if((argc >= 3) &&
		IS_A_FLOAT(argv,0) &&
		IS_A_FLOAT(argv,1) &&
		IS_A_FLOAT(argv,2))
	{
		beg_src = (int)atom_getintarg(0, argc, argv);
		beg_dst = (int)atom_getintarg(1, argc, argv);
		n = (int)atom_getintarg(2, argc, argv);
		if(beg_src < 0)
			beg_src = 0;
		if(beg_dst < 0)
			beg_dst = 0;
		if(n < 0)
			n = 0;

		ok_src = iem_tab_check_arrays(gensym("tab_reverse"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, beg_src+n);
		ok_dst = iem_tab_check_arrays(gensym("tab_reverse"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, beg_dst+n);

		if(ok_src && ok_dst)
		{
			vec_src = x->x_beg_mem_src1 + beg_src;
			vec_dst = x->x_beg_mem_dst + beg_dst;
			if(n)
			{
				t_garray *a;

				for(i=0, j=n-1; i<n; i++, j--)
					vec_dst[i] = vec_src[j];
				outlet_bang(x->x_obj.ob_outlet);
				a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
				garray_redraw(a);
			}
		}
	}
	else
	{
		post("tab_reverse-ERROR: list need 3 float arguments:");
		post("  source_offset + destination_offset + number_of_samples_to_copy");
	}
}

static void tab_reverse_free(t_tab_reverse *x)
{
}

static void *tab_reverse_new(t_symbol *s, int argc, t_atom *argv)
{
	t_tab_reverse *x = (t_tab_reverse *)pd_new(tab_reverse_class);
	t_symbol	*src, *dst;

	if((argc >= 2) &&
		IS_A_SYMBOL(argv,0) &&
		IS_A_SYMBOL(argv,1))
	{
		src = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		dst = (t_symbol *)atom_getsymbolarg(1, argc, argv);
	}
	else if((argc >= 1) &&
		IS_A_SYMBOL(argv,0))
	{
		src = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		dst = src;
	}
	else
	{
		post("tab_reverse-ERROR: need 2 symbols arguments:");
		post("  source_array_name + destination_array_name");
		return(0);
	}

	x->x_sym_scr1 = src;
	x->x_sym_dst = dst;
	outlet_new(&x->x_obj, &s_bang);
	return(x);
}

void tab_reverse_setup(void)
{
	tab_reverse_class = class_new(gensym("tab_reverse"), (t_newmethod)tab_reverse_new, (t_method)tab_reverse_free,
					 sizeof(t_tab_reverse), 0, A_GIMME, 0);
	class_addbang(tab_reverse_class, (t_method)tab_reverse_bang);
	class_addlist(tab_reverse_class, (t_method)tab_reverse_list);
	class_addmethod(tab_reverse_class, (t_method)tab_reverse_src, gensym("src"), A_DEFSYMBOL, 0);
	class_addmethod(tab_reverse_class, (t_method)tab_reverse_src, gensym("src1"), A_DEFSYMBOL, 0);
	class_addmethod(tab_reverse_class, (t_method)tab_reverse_dst, gensym("dst"), A_DEFSYMBOL, 0);
	class_sethelpsymbol(tab_reverse_class, gensym("iemhelp2/tab_reverse-help"));
}

--- NEW FILE: tab_min_index.c ---
/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.

iem_tab written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */

#ifdef NT
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif


#include "m_pd.h"
#include "iemlib.h"
#include "iem_tab.h"
#include <math.h>
#include <stdio.h>
#include <string.h>


/* -------------------------- tab_min_index ------------------------------ */

typedef struct _tab_min_index
{
	t_object	x_obj;
	int				x_size_src1;
	int				x_offset_src1;
	float			*x_beg_mem_src1;
	t_symbol	*x_sym_scr1;
	void			*x_bang_out;
	void			*x_min_out;
	void			*x_min_index_out;
} t_tab_min_index;

static t_class *tab_min_index_class;

static void tab_min_index_src(t_tab_min_index *x, t_symbol *s)
{
	x->x_sym_scr1 = s;
}

static void tab_min_index_bang(t_tab_min_index *x)
{
	int i, n;
	int ok_src, min_index=0;
	t_float *vec_src;
	t_float min=1.0e37;

	ok_src = iem_tab_check_arrays(gensym("tab_min_index"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, 0);

	if(ok_src)
	{
		n = x->x_size_src1;
		vec_src = x->x_beg_mem_src1;
		if(n)
		{
			for(i=0; i<n; i++)
			{
				if(vec_src[i] < min)
				{
					min = vec_src[i];
					min_index = i;
				}
			}
			outlet_float(x->x_min_out, min);
			outlet_float(x->x_min_index_out, (float)min_index);
			outlet_bang(x->x_bang_out);
		}
	}
}

static void tab_min_index_list(t_tab_min_index *x, t_symbol *s, int argc, t_atom *argv)
{
	int beg_src;
	int i, n;
	int ok_src, min_index=0;
	t_float *vec_src;
	t_float min=1.0e37;

	if((argc >= 2) &&
		IS_A_FLOAT(argv,0) &&
		IS_A_FLOAT(argv,1))
	{
		beg_src = (int)atom_getintarg(0, argc, argv);
		n = (int)atom_getintarg(1, argc, argv);
		if(beg_src < 0)
			beg_src = 0;
		if(n < 0)
			n = 0;

		ok_src = iem_tab_check_arrays(gensym("tab_min_index"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, beg_src+n);

		if(ok_src)
		{
			vec_src = x->x_beg_mem_src1 + beg_src;
			if(n)
			{
				for(i=0; i<n; i++)
				{
					if(vec_src[i] < min)
					{
						min = vec_src[i];
						min_index = i + beg_src;
					}
				}
				outlet_float(x->x_min_out, min);
				outlet_float(x->x_min_index_out, (float)min_index);
				outlet_bang(x->x_bang_out);
			}
		}
	}
	else
	{
		post("tab_min_index-ERROR: list need 2 float arguments:");
		post("  source_offset + number_of_samples_to_calc_min_index");
	}
}

static void tab_min_index_free(t_tab_min_index *x)
{
}

static void *tab_min_index_new(t_symbol *s, int argc, t_atom *argv)
{
	t_tab_min_index *x = (t_tab_min_index *)pd_new(tab_min_index_class);
	t_symbol	*src;

	if((argc >= 1) &&
		IS_A_SYMBOL(argv,0))
	{
		src = (t_symbol *)atom_getsymbolarg(0, argc, argv);
	}
	else
	{
		post("tab_min_index-ERROR: need 1 symbol argument:");
		post("  source_array_name");
		return(0);
	}

	x->x_sym_scr1 = src;
	x->x_bang_out = outlet_new(&x->x_obj, &s_bang);
	x->x_min_index_out = outlet_new(&x->x_obj, &s_float);
	x->x_min_out = outlet_new(&x->x_obj, &s_float);
	return(x);
}

void tab_min_index_setup(void)
{
	tab_min_index_class = class_new(gensym("tab_min_index"), (t_newmethod)tab_min_index_new, (t_method)tab_min_index_free,
					 sizeof(t_tab_min_index), 0, A_GIMME, 0);
	class_addbang(tab_min_index_class, (t_method)tab_min_index_bang);
	class_addlist(tab_min_index_class, (t_method)tab_min_index_list);
	class_addmethod(tab_min_index_class, (t_method)tab_min_index_src, gensym("src"), A_DEFSYMBOL, 0);
	class_addmethod(tab_min_index_class, (t_method)tab_min_index_src, gensym("src1"), A_DEFSYMBOL, 0);
	class_sethelpsymbol(tab_min_index_class, gensym("iemhelp2/tab_min_index-help"));
}

--- NEW FILE: tab_ne_scalar.c ---
/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.

iem_tab written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */

#ifdef NT
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif


#include "m_pd.h"
#include "iemlib.h"
#include "iem_tab.h"
#include <math.h>
#include <stdio.h>
#include <string.h>


/* -------------------------- tab_ne_scalar ------------------------------ */

typedef struct _tab_ne_scalar
{
	t_object	x_obj;
	int				x_size_src1;
	int				x_size_dst;
	int				x_offset_src1;
	int				x_offset_dst;
	float			*x_beg_mem_src1;
	float			*x_beg_mem_dst;
	t_symbol	*x_sym_scr1;
	t_symbol	*x_sym_dst;
} t_tab_ne_scalar;

static t_class *tab_ne_scalar_class;

static void tab_ne_scalar_src(t_tab_ne_scalar *x, t_symbol *s)
{
	x->x_sym_scr1 = s;
}

static void tab_ne_scalar_float(t_tab_ne_scalar *x, t_floatarg compare)
{
	int i, n;
	int ok_src1, ok_dst;
	t_float *vec_src1, *vec_dst;

	ok_src1 = iem_tab_check_arrays(gensym("tab_ne_scalar"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, 0);
	ok_dst = iem_tab_check_arrays(gensym("tab_ne_scalar"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, 0);

	if(ok_src1 && ok_dst)
	{
		if(x->x_size_src1 < x->x_size_dst)
			n = x->x_size_src1;
		else
			n = x->x_size_dst;

		vec_src1 = x->x_beg_mem_src1;
		vec_dst = x->x_beg_mem_dst;
		if(n)
		{
			t_garray *a;

			for(i=0; i<n; i++)
      {
        if(vec_src1[i] != compare)
				  vec_dst[i] = 1.0f;
        else
				  vec_dst[i] = 0.0f;
      }
			outlet_bang(x->x_obj.ob_outlet);
			a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
			garray_redraw(a);
		}
	}
}

static void tab_ne_scalar_dst(t_tab_ne_scalar *x, t_symbol *s)
{
	x->x_sym_dst = s;
}

static void tab_ne_scalar_list(t_tab_ne_scalar *x, t_symbol *s, int argc, t_atom *argv)
{
	int beg_src1, beg_dst;
	int i, n;
	int ok_src1, ok_dst;
	t_float *vec_src1, *vec_dst, compare;

	if((argc >= 4) &&
		IS_A_FLOAT(argv,0) &&
		IS_A_FLOAT(argv,1) &&
		IS_A_FLOAT(argv,2) &&
		IS_A_FLOAT(argv,3))
	{
		beg_src1 = (int)atom_getintarg(0, argc, argv);
		beg_dst = (int)atom_getintarg(1, argc, argv);
		n = (int)atom_getintarg(2, argc, argv);
		compare = (t_float)atom_getfloatarg(3, argc, argv);
		if(beg_src1 < 0)
			beg_src1 = 0;
		if(beg_dst < 0)
			beg_dst = 0;
		if(n < 0)
			n = 0;

		ok_src1 = iem_tab_check_arrays(gensym("tab_ne_scalar"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, beg_src1+n);
		ok_dst = iem_tab_check_arrays(gensym("tab_ne_scalar"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, beg_dst+n);

		if(ok_src1 && ok_dst)
		{
			vec_src1 = x->x_beg_mem_src1 + beg_src1;
			vec_dst = x->x_beg_mem_dst + beg_dst;
			if(n)
			{
				t_garray *a;

				for(i=0; i<n; i++)
        {
          if(vec_src1[i] != compare)
				    vec_dst[i] = 1.0f;
          else
				    vec_dst[i] = 0.0f;
        }
				outlet_bang(x->x_obj.ob_outlet);
				a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
				garray_redraw(a);
			}
		}
	}
	else
	{
		post("tab_ne_scalar-ERROR: list need 4 float arguments:");
		post("  source1_offset + destination_offset + number_of_samples_to_compare + compare_scalar");
  }
}

static void tab_ne_scalar_free(t_tab_ne_scalar *x)
{
}

static void *tab_ne_scalar_new(t_symbol *s, int argc, t_atom *argv)
{
	t_tab_ne_scalar *x = (t_tab_ne_scalar *)pd_new(tab_ne_scalar_class);
	t_symbol	*src1, *dst;

	if((argc >= 2) &&
		IS_A_SYMBOL(argv,0) &&
		IS_A_SYMBOL(argv,1))
	{
		src1 = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		dst = (t_symbol *)atom_getsymbolarg(1, argc, argv);
	}
	else if((argc >= 1) &&
		IS_A_SYMBOL(argv,0))
	{
		src1 = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		dst = src1;
	}
	else
	{
		post("tab_ne_scalar-ERROR: need 2 symbol arguments:");
		post("  source_array_name + destination_array_name");
		return(0);
	}

	x->x_sym_scr1 = src1;
	x->x_sym_dst = dst;
	outlet_new(&x->x_obj, &s_bang);
	return(x);
}

void tab_ne_scalar_setup(void)
{
	tab_ne_scalar_class = class_new(gensym("tab_ne_scalar"), (t_newmethod)tab_ne_scalar_new, (t_method)tab_ne_scalar_free,
					 sizeof(t_tab_ne_scalar), 0, A_GIMME, 0);
	class_addfloat(tab_ne_scalar_class, (t_method)tab_ne_scalar_float);
	class_addlist(tab_ne_scalar_class, (t_method)tab_ne_scalar_list);
	class_addmethod(tab_ne_scalar_class, (t_method)tab_ne_scalar_src, gensym("src1"), A_DEFSYMBOL, 0);
	class_addmethod(tab_ne_scalar_class, (t_method)tab_ne_scalar_src, gensym("src"), A_DEFSYMBOL, 0);
	class_addmethod(tab_ne_scalar_class, (t_method)tab_ne_scalar_dst, gensym("dst"), A_DEFSYMBOL, 0);
	class_sethelpsymbol(tab_ne_scalar_class, gensym("iemhelp2/tab_ne_scalar-help"));
}

--- NEW FILE: tab_gt_scalar.c ---
/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.

iem_tab written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */

#ifdef NT
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif


#include "m_pd.h"
#include "iemlib.h"
#include "iem_tab.h"
#include <math.h>
#include <stdio.h>
#include <string.h>


/* -------------------------- tab_gt_scalar ------------------------------ */

typedef struct _tab_gt_scalar
{
	t_object	x_obj;
	int				x_size_src1;
	int				x_size_dst;
	int				x_offset_src1;
	int				x_offset_dst;
	float			*x_beg_mem_src1;
	float			*x_beg_mem_dst;
	t_symbol	*x_sym_scr1;
	t_symbol	*x_sym_dst;
} t_tab_gt_scalar;

static t_class *tab_gt_scalar_class;

static void tab_gt_scalar_src(t_tab_gt_scalar *x, t_symbol *s)
{
	x->x_sym_scr1 = s;
}

static void tab_gt_scalar_float(t_tab_gt_scalar *x, t_floatarg compare)
{
	int i, n;
	int ok_src1, ok_dst;
	t_float *vec_src1, *vec_dst;

	ok_src1 = iem_tab_check_arrays(gensym("tab_gt_scalar"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, 0);
	ok_dst = iem_tab_check_arrays(gensym("tab_gt_scalar"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, 0);

	if(ok_src1 && ok_dst)
	{
		if(x->x_size_src1 < x->x_size_dst)
			n = x->x_size_src1;
		else
			n = x->x_size_dst;

		vec_src1 = x->x_beg_mem_src1;
		vec_dst = x->x_beg_mem_dst;
		if(n)
		{
			t_garray *a;

			for(i=0; i<n; i++)
      {
        if(vec_src1[i] > compare)
				  vec_dst[i] = 1.0f;
        else
				  vec_dst[i] = 0.0f;
      }
			outlet_bang(x->x_obj.ob_outlet);
			a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
			garray_redraw(a);
		}
	}
}

static void tab_gt_scalar_dst(t_tab_gt_scalar *x, t_symbol *s)
{
	x->x_sym_dst = s;
}

static void tab_gt_scalar_list(t_tab_gt_scalar *x, t_symbol *s, int argc, t_atom *argv)
{
	int beg_src1, beg_dst;
	int i, n;
	int ok_src1, ok_dst;
	t_float *vec_src1, *vec_dst, compare;

	if((argc >= 4) &&
		IS_A_FLOAT(argv,0) &&
		IS_A_FLOAT(argv,1) &&
		IS_A_FLOAT(argv,2) &&
		IS_A_FLOAT(argv,3))
	{
		beg_src1 = (int)atom_getintarg(0, argc, argv);
		beg_dst = (int)atom_getintarg(1, argc, argv);
		n = (int)atom_getintarg(2, argc, argv);
		compare = (t_float)atom_getfloatarg(3, argc, argv);
		if(beg_src1 < 0)
			beg_src1 = 0;
		if(beg_dst < 0)
			beg_dst = 0;
		if(n < 0)
			n = 0;

		ok_src1 = iem_tab_check_arrays(gensym("tab_gt_scalar"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, beg_src1+n);
		ok_dst = iem_tab_check_arrays(gensym("tab_gt_scalar"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, beg_dst+n);

		if(ok_src1 && ok_dst)
		{
			vec_src1 = x->x_beg_mem_src1 + beg_src1;
			vec_dst = x->x_beg_mem_dst + beg_dst;
			if(n)
			{
				t_garray *a;

				for(i=0; i<n; i++)
        {
          if(vec_src1[i] > compare)
				    vec_dst[i] = 1.0f;
          else
				    vec_dst[i] = 0.0f;
        }
				outlet_bang(x->x_obj.ob_outlet);
				a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
				garray_redraw(a);
			}
		}
	}
	else
	{
		post("tab_gt_scalar-ERROR: list need 4 float arguments:");
		post("  source1_offset + destination_offset + number_of_samples_to_compare + compare_scalar");
	}
}

static void tab_gt_scalar_free(t_tab_gt_scalar *x)
{
}

static void *tab_gt_scalar_new(t_symbol *s, int argc, t_atom *argv)
{
	t_tab_gt_scalar *x = (t_tab_gt_scalar *)pd_new(tab_gt_scalar_class);
	t_symbol	*src1, *dst;

	if((argc >= 2) &&
		IS_A_SYMBOL(argv,0) &&
		IS_A_SYMBOL(argv,1))
	{
		src1 = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		dst = (t_symbol *)atom_getsymbolarg(1, argc, argv);
	}
	else if((argc >= 1) &&
		IS_A_SYMBOL(argv,0))
	{
		src1 = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		dst = src1;
	}
	else
	{
		post("tab_gt_scalar-ERROR: need 2 symbol arguments:");
		post("  source_array_name + destination_array_name");
		return(0);
	}

	x->x_sym_scr1 = src1;
	x->x_sym_dst = dst;
	outlet_new(&x->x_obj, &s_bang);
	return(x);
}

void tab_gt_scalar_setup(void)
{
	tab_gt_scalar_class = class_new(gensym("tab_gt_scalar"), (t_newmethod)tab_gt_scalar_new, (t_method)tab_gt_scalar_free,
					 sizeof(t_tab_gt_scalar), 0, A_GIMME, 0);
	class_addfloat(tab_gt_scalar_class, (t_method)tab_gt_scalar_float);
	class_addlist(tab_gt_scalar_class, (t_method)tab_gt_scalar_list);
	class_addmethod(tab_gt_scalar_class, (t_method)tab_gt_scalar_src, gensym("src1"), A_DEFSYMBOL, 0);
	class_addmethod(tab_gt_scalar_class, (t_method)tab_gt_scalar_src, gensym("src"), A_DEFSYMBOL, 0);
	class_addmethod(tab_gt_scalar_class, (t_method)tab_gt_scalar_dst, gensym("dst"), A_DEFSYMBOL, 0);
	class_sethelpsymbol(tab_gt_scalar_class, gensym("iemhelp2/tab_gt_scalar-help"));
}

--- NEW FILE: tab_rifft.c ---
/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.

iem_tab written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */

#ifdef NT
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif


#include "m_pd.h"
#include "iemlib.h"
#include "iem_tab.h"
#include <math.h>
#include <stdio.h>
#include <string.h>


/* -------------------------- tab_rifft ------------------------------ */

typedef struct _tab_rifft
{
	t_object	x_obj;
	int				x_size_src_re;
	int				x_size_src_im;
	int				x_size_dst;
	int				x_offset_src_re;
	int				x_offset_src_im;
	int				x_offset_dst;
	int				x_fftsize;
	float			*x_beg_mem_src_re;
	float			*x_beg_mem_src_im;
	float			*x_beg_mem_dst_re;
	float			*x_beg_mem_dst_im;
	TAB_COMPLEX		*x_sin_cos;
	t_symbol	*x_sym_src_re;
	t_symbol	*x_sym_src_im;
	t_symbol	*x_sym_dst;
} t_tab_rifft;

static t_class *tab_rifft_class;

static void tab_rifft_init(t_tab_rifft *x)
{
	int i, fftsize = x->x_fftsize;
	float f, g;
	TAB_COMPLEX *sincos = x->x_sin_cos;

	g = 2.0f * 3.1415926538f / (float)fftsize;
	for(i=0; i<fftsize; i++)
	{
		f = g * (float)i;
		(*sincos).real = cos(f);
		(*sincos).imag = sin(f);/*IFFT*/
		sincos++;
	}
}

static void tab_rifft_ifftsize(t_tab_rifft *x, t_floatarg f)
{
	int i=1, fftsize = (int)f;

	if(fftsize < 8)
		fftsize = 8;

	while(i <= fftsize)
		i *= 2;
	i /= 2;

	if(i != x->x_fftsize)
	{
		x->x_sin_cos = (TAB_COMPLEX *)resizebytes(x->x_sin_cos, x->x_fftsize*sizeof(TAB_COMPLEX), i*sizeof(TAB_COMPLEX));
		x->x_beg_mem_dst_im = (float *)resizebytes(x->x_beg_mem_dst_im, x->x_fftsize*sizeof(float), i*sizeof(float));
		x->x_fftsize = i;
	}
	tab_rifft_init(x);
}

static void tab_rifft_dst(t_tab_rifft *x, t_symbol *s)
{
	x->x_sym_dst = s;
}

static void tab_rifft_src_re(t_tab_rifft *x, t_symbol *s)
{
	x->x_sym_src_re = s;
}

static void tab_rifft_src_im(t_tab_rifft *x, t_symbol *s)
{
	x->x_sym_src_im = s;
}

static void tab_rifft_bang(t_tab_rifft *x)
{
	int i, j, k;
	int ok_src_re, ok_src_im, ok_dst;
	int w_index, w_inc, i_inc, v_index;
	int fftsize = x->x_fftsize;
	int fs1 = fftsize - 1;
	int fs2 = fftsize / 2;
	TAB_COMPLEX w;
	TAB_COMPLEX *sincos = x->x_sin_cos;
	t_float *vec_src_re, *vec_src_im, *vec_dst_re, *vec_dst_im;
	t_float old1_re, old1_im, old2_re, old2_im, g;

	ok_src_re = iem_tab_check_arrays(gensym("tab_rifft"), x->x_sym_src_re, &x->x_beg_mem_src_re, &x->x_size_src_re, fftsize);
	ok_src_im = iem_tab_check_arrays(gensym("tab_rifft"), x->x_sym_src_im, &x->x_beg_mem_src_im, &x->x_size_src_im, fftsize);
	ok_dst = iem_tab_check_arrays(gensym("tab_rifft"), x->x_sym_dst, &x->x_beg_mem_dst_re, &x->x_size_dst, fftsize);
	
	if(ok_src_re && ok_src_im && ok_dst)
	{
		t_garray *a;

		vec_src_re=x->x_beg_mem_src_re;
		vec_src_im=x->x_beg_mem_src_im;
		vec_dst_re=x->x_beg_mem_dst_re;
		vec_dst_im=x->x_beg_mem_dst_im;

		for(j=0; j<fs2; j++)
		{
			vec_dst_re[j] = vec_src_re[j];
			vec_dst_im[j] = vec_src_im[j];
		}
		vec_dst_re[fs2] = vec_src_re[fs2];
		vec_dst_im[fs2] = 0.0f;
		for(k=1, j=fftsize-1; k<fs2; k++, j--)
		{
			vec_dst_re[j] = vec_src_re[k];
			vec_dst_im[j] = -vec_src_im[k];
		}

		i_inc = fs2;
		w_inc = 1;
		for(i=1; i<fftsize; i<<=1)
		{
			v_index = 0;
			for(j=0; j<i; j++)
			{
				w_index = 0;
				for(k=0; k<i_inc; k++)
				{
					old1_re = vec_dst_re[v_index];
					old1_im = vec_dst_im[v_index];
					old2_re = vec_dst_re[v_index+i_inc];
					old2_im = vec_dst_im[v_index+i_inc];
					w = sincos[w_index];
					vec_dst_re[v_index+i_inc] = (old1_re - old2_re)*w.real - (old1_im - old2_im)*w.imag;
					vec_dst_im[v_index+i_inc] = (old1_im - old2_im)*w.real + (old1_re - old2_re)*w.imag;
					vec_dst_re[v_index] = old1_re + old2_re;
					vec_dst_im[v_index] = old1_im + old2_im;
					w_index += w_inc;
					v_index++;
				}
				v_index += i_inc;
			}
			w_inc <<= 1;
			i_inc >>= 1;
		}

		j = 0;
		for(i=1;i<fs1;i++)
		{
			k = fs2;
			while(k <= j)
			{
				j = j - k;
				k >>= 1;
			}
			j = j + k;
			if(i < j)
			{
				old1_re = vec_dst_re[j];
				old1_im = vec_dst_im[j];
				vec_dst_re[j] = vec_dst_re[i];
				vec_dst_im[j] = vec_dst_im[i];
				vec_dst_re[i] = old1_re;
				vec_dst_im[i] = old1_im;
			}
		}

//		g = 2.0f / (float)fftsize;
/*
		ein fehler tritt auf beim 0.sample, hier sollte nur mal 1.0 multipliziert werden
		wenn gelten soll : Energie im zeitfenster == Energie im Frequenz-dichte-fenster

	g = 1.0f;
		for(i = 0; i < fs2; i++)
		{
			vec_dst_re[i] *= g;
			vec_dst_im[i] *= g;
		}
		*/
		
		g = 1.0f / (float)fftsize;
		for(i = 0; i < fftsize; i++)
		{
			vec_dst_re[i] *= g;
		}

		outlet_bang(x->x_obj.ob_outlet);
		a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
		garray_redraw(a);
	}
}

static void tab_rifft_list(t_tab_rifft *x, t_symbol *s, int argc, t_atom *argv)
{
	int beg_src_re, beg_src_im, beg_dst;
	int i, j, k;
	int ok_src_re, ok_src_im, ok_dst;
	int w_index, w_inc, i_inc, v_index;
	int fftsize = x->x_fftsize;
	int fs1 = fftsize - 1;
	int fs2 = fftsize / 2;
	TAB_COMPLEX w;
	TAB_COMPLEX *sincos = x->x_sin_cos;
	t_float *vec_src_re, *vec_src_im, *vec_dst_re, *vec_dst_im;
	t_float old1_re, old1_im, old2_re, old2_im, g;

	if((argc >= 3) &&
		IS_A_FLOAT(argv,0) &&
		IS_A_FLOAT(argv,1) &&
		IS_A_FLOAT(argv,2))
	{
		beg_src_re = (int)atom_getintarg(0, argc, argv);
		beg_src_im = (int)atom_getintarg(1, argc, argv);
		beg_dst = (int)atom_getintarg(2, argc, argv);
		if(beg_src_re < 0)
			beg_src_re = 0;
		if(beg_src_im < 0)
			beg_src_im = 0;
		if(beg_dst < 0)
			beg_dst = 0;

		ok_src_re = iem_tab_check_arrays(gensym("tab_rifft"), x->x_sym_src_re, &x->x_beg_mem_src_re, &x->x_size_src_re, beg_src_re+fftsize);
		ok_src_im = iem_tab_check_arrays(gensym("tab_rifft"), x->x_sym_src_im, &x->x_beg_mem_src_im, &x->x_size_src_im, beg_src_im+fftsize);
		ok_dst = iem_tab_check_arrays(gensym("tab_rifft"), x->x_sym_dst, &x->x_beg_mem_dst_re, &x->x_size_dst, beg_dst+fftsize);

		if(ok_src_re && ok_src_im && ok_dst)
		{
			t_garray *a;

			vec_src_re=x->x_beg_mem_src_re + beg_src_re;
			vec_src_im=x->x_beg_mem_src_im + beg_src_im;
			vec_dst_re=x->x_beg_mem_dst_re + beg_dst;
			vec_dst_im=x->x_beg_mem_dst_im;

			for(j=0; j<fs2; j++)
			{
				vec_dst_re[j] = vec_src_re[j];
				vec_dst_im[j] = vec_src_im[j];
			}
			vec_dst_re[fs2] = vec_src_re[fs2];
			vec_dst_im[fs2] = 0.0f;
			for(k=1, j=fftsize-1; k<fs2; k++, j--)
			{
				vec_dst_re[j] = vec_src_re[k];
				vec_dst_im[j] = -vec_src_im[k];
			}

			i_inc = fs2;
			w_inc = 1;
			for(i=1; i<fftsize; i<<=1)
			{
				v_index = 0;
				for(j=0; j<i; j++)
				{
					w_index = 0;
					for(k=0; k<i_inc; k++)
					{
						old1_re = vec_dst_re[v_index];
						old1_im = vec_dst_im[v_index];
						old2_re = vec_dst_re[v_index+i_inc];
						old2_im = vec_dst_im[v_index+i_inc];
						w = sincos[w_index];
						vec_dst_re[v_index+i_inc] = (old1_re - old2_re)*w.real - (old1_im - old2_im)*w.imag;
						vec_dst_im[v_index+i_inc] = (old1_im - old2_im)*w.real + (old1_re - old2_re)*w.imag;
						vec_dst_re[v_index] = old1_re + old2_re;
						vec_dst_im[v_index] = old1_im + old2_im;
						w_index += w_inc;
						v_index++;
					}
					v_index += i_inc;
				}
				w_inc <<= 1;
				i_inc >>= 1;
			}

			j = 0;
			for(i=1;i<fs1;i++)
			{
				k = fs2;
				while(k <= j)
				{
					j = j - k;
					k >>= 1;
				}
				j = j + k;
				if(i < j)
				{
					old1_re = vec_dst_re[j];
					old1_im = vec_dst_im[j];
					vec_dst_re[j] = vec_dst_re[i];
					vec_dst_im[j] = vec_dst_im[i];
					vec_dst_re[i] = old1_re;
					vec_dst_im[i] = old1_im;
				}
			}

//		g = 2.0f / (float)fftsize;
/*
		ein fehler tritt auf beim 0.sample, hier sollte nur mal 1.0 multipliziert werden
		wenn gelten soll : Energie im zeitfenster == Energie im Frequenz-dichte-fenster
		
			g = 1.0f;
			for(i = 0; i < fs2; i++)
			{
				vec_src_re[i] *= g;
				vec_src_im[i] *= g;
			}
			*/
		
			g = 1.0f / (float)fftsize;
			for(i = 0; i < fftsize; i++)
			{
				vec_dst_re[i] *= g;
			}

			outlet_bang(x->x_obj.ob_outlet);
			a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
			garray_redraw(a);
		}
	}
	else
	{
		post("tab_rifft-ERROR: list need 3 float arguments:");
		post("  source_real_offset + source_imag_offset + destination_offset");
	}
}

static void tab_rifft_free(t_tab_rifft *x)
{
	freebytes(x->x_sin_cos, x->x_fftsize * sizeof(TAB_COMPLEX));
	freebytes(x->x_beg_mem_dst_im, x->x_fftsize * sizeof(float));
}

static void *tab_rifft_new(t_symbol *s, int argc, t_atom *argv)
{
	t_tab_rifft *x = (t_tab_rifft *)pd_new(tab_rifft_class);
	t_symbol	*src_re, *src_im, *dst;
	int fftsize, i=1;

	if((argc >= 4) &&
		IS_A_SYMBOL(argv,0) &&
		IS_A_SYMBOL(argv,1) &&
		IS_A_SYMBOL(argv,2) &&
		IS_A_FLOAT(argv,3))
	{
		src_re = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		src_im = (t_symbol *)atom_getsymbolarg(1, argc, argv);
		dst = (t_symbol *)atom_getsymbolarg(2, argc, argv);
		fftsize = (int)atom_getintarg(3, argc, argv);
	}
	else
	{
		post("tab_rifft-ERROR: need 3 symbols + 1 float arguments:");
		post("  source_real_array_name + source_imag_array_name + destination_array_name + IFFT-size");
		return(0);
	}

	if(fftsize < 8)
		fftsize = 8;

	while(i <= fftsize)
		i *= 2;
	i /= 2;
	fftsize = i;

	x->x_fftsize = fftsize;
	x->x_sym_src_re = src_re;
	x->x_sym_src_im = src_im;
	x->x_sym_dst = dst;
	x->x_sin_cos = (TAB_COMPLEX *)getbytes(x->x_fftsize * sizeof(TAB_COMPLEX));
	x->x_beg_mem_dst_im = (float *)getbytes(x->x_fftsize * sizeof(float));
	tab_rifft_init(x);
	outlet_new(&x->x_obj, &s_bang);
	return(x);
}

void tab_rifft_setup(void)
{
	tab_rifft_class = class_new(gensym("tab_rifft"), (t_newmethod)tab_rifft_new, (t_method)tab_rifft_free,
					 sizeof(t_tab_rifft), 0, A_GIMME, 0);
	class_addbang(tab_rifft_class, (t_method)tab_rifft_bang);
	class_addlist(tab_rifft_class, (t_method)tab_rifft_list);
	class_addmethod(tab_rifft_class, (t_method)tab_rifft_ifftsize, gensym("ifftsize"), A_DEFFLOAT, 0);
	class_addmethod(tab_rifft_class, (t_method)tab_rifft_src_re, gensym("src_re"), A_DEFSYMBOL, 0);
	class_addmethod(tab_rifft_class, (t_method)tab_rifft_src_im, gensym("src_im"), A_DEFSYMBOL, 0);
	class_addmethod(tab_rifft_class, (t_method)tab_rifft_src_re, gensym("src1"), A_DEFSYMBOL, 0);
	class_addmethod(tab_rifft_class, (t_method)tab_rifft_src_im, gensym("src2"), A_DEFSYMBOL, 0);
	class_addmethod(tab_rifft_class, (t_method)tab_rifft_dst, gensym("dst"), A_DEFSYMBOL, 0);
	class_addmethod(tab_rifft_class, (t_method)tab_rifft_dst, gensym("dst1"), A_DEFSYMBOL, 0);
	class_sethelpsymbol(tab_rifft_class, gensym("iemhelp2/tab_rifft-help"));
}

--- NEW FILE: tab_abs.c ---
/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.

iem_tab written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */

#ifdef NT
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif


#include "m_pd.h"
#include "iemlib.h"
#include "iem_tab.h"
#include <math.h>
#include <stdio.h>
#include <string.h>


/* -------------------------- tab_abs ------------------------------ */

typedef struct _tab_abs
{
	t_object	x_obj;
	int				x_size_src1;
	int				x_size_dst;
	int				x_offset_src1;
	int				x_offset_dst;
	float			*x_beg_mem_src1;
	float			*x_beg_mem_dst;
	t_symbol	*x_sym_scr1;
	t_symbol	*x_sym_dst;
} t_tab_abs;

static t_class *tab_abs_class;

static void tab_abs_src(t_tab_abs *x, t_symbol *s)
{
	x->x_sym_scr1 = s;
}

static void tab_abs_dst(t_tab_abs *x, t_symbol *s)
{
	x->x_sym_dst = s;
}

static void tab_abs_bang(t_tab_abs *x)
{
	int i, n;
	int ok_src, ok_dst;
	t_float *vec_src, *vec_dst;

	ok_src = iem_tab_check_arrays(gensym("tab_abs"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, 0);
	ok_dst = iem_tab_check_arrays(gensym("tab_abs"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, 0);

	if(ok_src && ok_dst)
	{
		if(x->x_size_src1 < x->x_size_dst)
			n = x->x_size_src1;
		else
			n = x->x_size_dst;
		vec_src = x->x_beg_mem_src1;
		vec_dst = x->x_beg_mem_dst;
		if(n)
		{
			t_garray *a;

			for(i=0; i<n; i++)
				vec_dst[i] = fabs(vec_src[i]);
			outlet_bang(x->x_obj.ob_outlet);
			a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
			garray_redraw(a);
		}
	}
}

static void tab_abs_list(t_tab_abs *x, t_symbol *s, int argc, t_atom *argv)
{
	int beg_src, beg_dst;
	int i, n;
	int ok_src, ok_dst;
	t_float *vec_src, *vec_dst;

	if((argc >= 3) &&
		IS_A_FLOAT(argv,0) &&
		IS_A_FLOAT(argv,1) &&
		IS_A_FLOAT(argv,2))
	{
		beg_src = (int)atom_getintarg(0, argc, argv);
		beg_dst = (int)atom_getintarg(1, argc, argv);
		n = (int)atom_getintarg(2, argc, argv);
		if(beg_src < 0)
			beg_src = 0;
		if(beg_dst < 0)
			beg_dst = 0;
		if(n < 0)
			n = 0;

		ok_src = iem_tab_check_arrays(gensym("tab_abs"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, beg_src+n);
		ok_dst = iem_tab_check_arrays(gensym("tab_abs"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, beg_dst+n);

		if(ok_src && ok_dst)
		{
			vec_src = x->x_beg_mem_src1 + beg_src;
			vec_dst = x->x_beg_mem_dst + beg_dst;
			if(n)
			{
				t_garray *a;

				for(i=0; i<n; i++)
					vec_dst[i] = fabs(vec_src[i]);
				outlet_bang(x->x_obj.ob_outlet);
				a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
				garray_redraw(a);
			}
		}
	}
	else
	{
		post("tab_abs-ERROR: list need 3 float arguments:");
		post("  source_offset + destination_offset + number_of_samples_to_abs");
	}
}

static void tab_abs_free(t_tab_abs *x)
{
}

static void *tab_abs_new(t_symbol *s, int argc, t_atom *argv)
{
	t_tab_abs *x = (t_tab_abs *)pd_new(tab_abs_class);
	t_symbol	*src, *dst;

	if((argc >= 2) &&
		IS_A_SYMBOL(argv,0) &&
		IS_A_SYMBOL(argv,1))
	{
		src = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		dst = (t_symbol *)atom_getsymbolarg(1, argc, argv);
	}
	else if((argc >= 1) &&
		IS_A_SYMBOL(argv,0))
	{
		src = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		dst = src;
	}
	else
	{
		post("tab_abs-ERROR: need 2 symbols arguments:");
		post("  source_array_name + destination_array_name");
		return(0);
	}

	x->x_sym_scr1 = src;
	x->x_sym_dst = dst;
	outlet_new(&x->x_obj, &s_bang);
	return(x);
}

void tab_abs_setup(void)
{
	tab_abs_class = class_new(gensym("tab_abs"), (t_newmethod)tab_abs_new, (t_method)tab_abs_free,
					 sizeof(t_tab_abs), 0, A_GIMME, 0);
	class_addbang(tab_abs_class, (t_method)tab_abs_bang);
	class_addlist(tab_abs_class, (t_method)tab_abs_list);
	class_addmethod(tab_abs_class, (t_method)tab_abs_src, gensym("src"), A_DEFSYMBOL, 0);
	class_addmethod(tab_abs_class, (t_method)tab_abs_src, gensym("src1"), A_DEFSYMBOL, 0);
	class_addmethod(tab_abs_class, (t_method)tab_abs_dst, gensym("dst"), A_DEFSYMBOL, 0);
	class_sethelpsymbol(tab_abs_class, gensym("iemhelp2/tab_abs-help"));
}

--- NEW FILE: tab_ne.c ---
/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.

iem_tab written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */

#ifdef NT
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif


#include "m_pd.h"
#include "iemlib.h"
#include "iem_tab.h"
#include <math.h>
#include <stdio.h>
#include <string.h>


/* -------------------------- tab_ne ------------------------------ */

typedef struct _tab_ne
{
	t_object	x_obj;
	int				x_size_src1;
	int				x_size_src2;
	int				x_size_dst;
	int				x_offset_src1;
	int				x_offset_src2;
	int				x_offset_dst;
	float			*x_beg_mem_src1;
	float			*x_beg_mem_src2;
	float			*x_beg_mem_dst;
	t_symbol	*x_sym_scr1;
	t_symbol	*x_sym_scr2;
	t_symbol	*x_sym_dst;
} t_tab_ne;

static t_class *tab_ne_class;

static void tab_ne_src1(t_tab_ne *x, t_symbol *s)
{
	x->x_sym_scr1 = s;
}

static void tab_ne_src2(t_tab_ne *x, t_symbol *s)
{
	x->x_sym_scr2 = s;
}

static void tab_ne_dst(t_tab_ne *x, t_symbol *s)
{
	x->x_sym_dst = s;
}

static void tab_ne_bang(t_tab_ne *x)
{
	int i, n;
	int ok_src1, ok_src2, ok_dst;
	t_float *vec_src1, *vec_src2, *vec_dst;

	ok_src1 = iem_tab_check_arrays(gensym("tab_ne"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, 0);
	ok_src2 = iem_tab_check_arrays(gensym("tab_ne"), x->x_sym_scr2, &x->x_beg_mem_src2, &x->x_size_src2, 0);
	ok_dst = iem_tab_check_arrays(gensym("tab_ne"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, 0);

	if(ok_src1 && ok_src2 && ok_dst)
	{
		if(x->x_size_src1 < x->x_size_dst)
			n = x->x_size_src1;
		else
			n = x->x_size_dst;
		if(x->x_size_src2 < n)
			n = x->x_size_src2;

		vec_src1 = x->x_beg_mem_src1;
		vec_src2 = x->x_beg_mem_src2;
		vec_dst = x->x_beg_mem_dst;
		if(n)
		{
			t_garray *a;

			for(i=0; i<n; i++)
      {
        if(vec_src1[i] != vec_src2[i])
				  vec_dst[i] = 1.0f;
        else
				  vec_dst[i] = 0.0f;
      }
			outlet_bang(x->x_obj.ob_outlet);
			a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
			garray_redraw(a);
		}
	}
}

static void tab_ne_list(t_tab_ne *x, t_symbol *s, int argc, t_atom *argv)
{
	int beg_src1, beg_src2, beg_dst;
	int i, n;
	int ok_src1, ok_src2, ok_dst;
	t_float *vec_src1, *vec_src2, *vec_dst;

	if((argc >= 4) &&
		IS_A_FLOAT(argv,0) &&
		IS_A_FLOAT(argv,1) &&
		IS_A_FLOAT(argv,2) &&
		IS_A_FLOAT(argv,3))
	{
		beg_src1 = (int)atom_getintarg(0, argc, argv);
		beg_src2 = (int)atom_getintarg(1, argc, argv);
		beg_dst = (int)atom_getintarg(2, argc, argv);
		n = (int)atom_getintarg(3, argc, argv);
		if(beg_src1 < 0)
			beg_src1 = 0;
		if(beg_src2 < 0)
			beg_src2 = 0;
		if(beg_dst < 0)
			beg_dst = 0;
		if(n < 0)
			n = 0;

		ok_src1 = iem_tab_check_arrays(gensym("tab_ne"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, beg_src1+n);
		ok_src2 = iem_tab_check_arrays(gensym("tab_ne"), x->x_sym_scr2, &x->x_beg_mem_src2, &x->x_size_src2, beg_src2+n);
		ok_dst = iem_tab_check_arrays(gensym("tab_ne"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, beg_dst+n);

		if(ok_src1 && ok_src2 && ok_dst)
		{
			vec_src1 = x->x_beg_mem_src1 + beg_src1;
			vec_src2 = x->x_beg_mem_src2 + beg_src2;
			vec_dst = x->x_beg_mem_dst + beg_dst;
			if(n)
			{
				t_garray *a;

				for(i=0; i<n; i++)
        {
          if(vec_src1[i] != vec_src2[i])
				    vec_dst[i] = 1.0f;
          else
				    vec_dst[i] = 0.0f;
        }
				outlet_bang(x->x_obj.ob_outlet);
				a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
				garray_redraw(a);
			}
		}
	}
	else
	{
		post("tab_ne-ERROR: list need 4 float arguments:");
		post("  source1_offset + source2_offset + destination_offset + number_of_samples_to_compare");
	}
}

static void tab_ne_free(t_tab_ne *x)
{
}

static void *tab_ne_new(t_symbol *s, int argc, t_atom *argv)
{
	t_tab_ne *x = (t_tab_ne *)pd_new(tab_ne_class);
	t_symbol	*src1, *src2, *dst;
	t_float time;

	if((argc >= 3) &&
		IS_A_SYMBOL(argv,0) &&
		IS_A_SYMBOL(argv,1) &&
		IS_A_SYMBOL(argv,2))
	{
		src1 = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		src2 = (t_symbol *)atom_getsymbolarg(1, argc, argv);
		dst = (t_symbol *)atom_getsymbolarg(2, argc, argv);
	}
	else if((argc >= 2) &&
		IS_A_SYMBOL(argv,0) &&
		IS_A_SYMBOL(argv,1))
	{
		src1 = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		dst = src1;
		src2 = (t_symbol *)atom_getsymbolarg(1, argc, argv);
	}
	else
	{
		post("tab_ne-ERROR: need 3 symbols arguments:");
		post("  source1_array_name + source2_array_name + destination_array_name");
		return(0);
	}

	x->x_sym_scr1 = src1;
	x->x_sym_scr2 = src2;
	x->x_sym_dst = dst;
	outlet_new(&x->x_obj, &s_bang);
	return(x);
}

void tab_ne_setup(void)
{
	tab_ne_class = class_new(gensym("tab_ne"), (t_newmethod)tab_ne_new, (t_method)tab_ne_free,
					 sizeof(t_tab_ne), 0, A_GIMME, 0);
	class_addbang(tab_ne_class, (t_method)tab_ne_bang);
	class_addlist(tab_ne_class, (t_method)tab_ne_list);
	class_addmethod(tab_ne_class, (t_method)tab_ne_src1, gensym("src1"), A_DEFSYMBOL, 0);
	class_addmethod(tab_ne_class, (t_method)tab_ne_src2, gensym("src2"), A_DEFSYMBOL, 0);
	class_addmethod(tab_ne_class, (t_method)tab_ne_dst, gensym("dst"), A_DEFSYMBOL, 0);
	class_sethelpsymbol(tab_ne_class, gensym("iemhelp2/tab_ne-help"));
}

--- NEW FILE: tab_eq_scalar.c ---
/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.

iem_tab written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */

#ifdef NT
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif


#include "m_pd.h"
#include "iemlib.h"
#include "iem_tab.h"
#include <math.h>
#include <stdio.h>
#include <string.h>


/* -------------------------- tab_eq_scalar ------------------------------ */

typedef struct _tab_eq_scalar
{
	t_object	x_obj;
	int				x_size_src1;
	int				x_size_dst;
	int				x_offset_src1;
	int				x_offset_dst;
	float			*x_beg_mem_src1;
	float			*x_beg_mem_dst;
	t_symbol	*x_sym_scr1;
	t_symbol	*x_sym_dst;
} t_tab_eq_scalar;

static t_class *tab_eq_scalar_class;

static void tab_eq_scalar_src(t_tab_eq_scalar *x, t_symbol *s)
{
	x->x_sym_scr1 = s;
}

static void tab_eq_scalar_float(t_tab_eq_scalar *x, t_floatarg compare)
{
	int i, n;
	int ok_src1, ok_dst;
	t_float *vec_src1, *vec_dst;

	ok_src1 = iem_tab_check_arrays(gensym("tab_eq_scalar"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, 0);
	ok_dst = iem_tab_check_arrays(gensym("tab_eq_scalar"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, 0);

	if(ok_src1 && ok_dst)
	{
		if(x->x_size_src1 < x->x_size_dst)
			n = x->x_size_src1;
		else
			n = x->x_size_dst;

		vec_src1 = x->x_beg_mem_src1;
		vec_dst = x->x_beg_mem_dst;
		if(n)
		{
			t_garray *a;

			for(i=0; i<n; i++)
      {
        if(vec_src1[i] == compare)
				  vec_dst[i] = 1.0f;
        else
				  vec_dst[i] = 0.0f;
      }
			outlet_bang(x->x_obj.ob_outlet);
			a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
			garray_redraw(a);
		}
	}
}

static void tab_eq_scalar_dst(t_tab_eq_scalar *x, t_symbol *s)
{
	x->x_sym_dst = s;
}

static void tab_eq_scalar_list(t_tab_eq_scalar *x, t_symbol *s, int argc, t_atom *argv)
{
	int beg_src1, beg_dst;
	int i, n;
	int ok_src1, ok_dst;
	t_float *vec_src1, *vec_dst, compare;

	if((argc >= 4) &&
		IS_A_FLOAT(argv,0) &&
		IS_A_FLOAT(argv,1) &&
		IS_A_FLOAT(argv,2) &&
		IS_A_FLOAT(argv,3))
	{
		beg_src1 = (int)atom_getintarg(0, argc, argv);
		beg_dst = (int)atom_getintarg(1, argc, argv);
		n = (int)atom_getintarg(2, argc, argv);
		compare = (t_float)atom_getfloatarg(3, argc, argv);
		if(beg_src1 < 0)
			beg_src1 = 0;
		if(beg_dst < 0)
			beg_dst = 0;
		if(n < 0)
			n = 0;

		ok_src1 = iem_tab_check_arrays(gensym("tab_eq_scalar"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, beg_src1+n);
		ok_dst = iem_tab_check_arrays(gensym("tab_eq_scalar"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, beg_dst+n);

		if(ok_src1 && ok_dst)
		{
			vec_src1 = x->x_beg_mem_src1 + beg_src1;
			vec_dst = x->x_beg_mem_dst + beg_dst;
			if(n)
			{
				t_garray *a;

				for(i=0; i<n; i++)
        {
          if(vec_src1[i] == compare)
				    vec_dst[i] = 1.0f;
          else
				    vec_dst[i] = 0.0f;
        }
				outlet_bang(x->x_obj.ob_outlet);
				a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
				garray_redraw(a);
			}
		}
	}
	else
	{
		post("tab_eq_scalar-ERROR: list need 4 float arguments:");
		post("  source1_offset + destination_offset + number_of_samples_to_compare + compare_scalar");
  }
}

static void tab_eq_scalar_free(t_tab_eq_scalar *x)
{
}

static void *tab_eq_scalar_new(t_symbol *s, int argc, t_atom *argv)
{
	t_tab_eq_scalar *x = (t_tab_eq_scalar *)pd_new(tab_eq_scalar_class);
	t_symbol	*src1, *dst;

	if((argc >= 2) &&
		IS_A_SYMBOL(argv,0) &&
		IS_A_SYMBOL(argv,1))
	{
		src1 = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		dst = (t_symbol *)atom_getsymbolarg(1, argc, argv);
	}
	else if((argc >= 1) &&
		IS_A_SYMBOL(argv,0))
	{
		src1 = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		dst = src1;
	}
	else
	{
		post("tab_eq_scalar-ERROR: need 2 symbol arguments:");
		post("  source_array_name + destination_array_name");
		return(0);
	}

	x->x_sym_scr1 = src1;
	x->x_sym_dst = dst;
	outlet_new(&x->x_obj, &s_bang);
	return(x);
}

void tab_eq_scalar_setup(void)
{
	tab_eq_scalar_class = class_new(gensym("tab_eq_scalar"), (t_newmethod)tab_eq_scalar_new, (t_method)tab_eq_scalar_free,
					 sizeof(t_tab_eq_scalar), 0, A_GIMME, 0);
	class_addfloat(tab_eq_scalar_class, (t_method)tab_eq_scalar_float);
	class_addlist(tab_eq_scalar_class, (t_method)tab_eq_scalar_list);
	class_addmethod(tab_eq_scalar_class, (t_method)tab_eq_scalar_src, gensym("src1"), A_DEFSYMBOL, 0);
	class_addmethod(tab_eq_scalar_class, (t_method)tab_eq_scalar_src, gensym("src"), A_DEFSYMBOL, 0);
	class_addmethod(tab_eq_scalar_class, (t_method)tab_eq_scalar_dst, gensym("dst"), A_DEFSYMBOL, 0);
	class_sethelpsymbol(tab_eq_scalar_class, gensym("iemhelp2/tab_eq_scalar-help"));
}

--- NEW FILE: tab_cross_corr.c ---
/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.

iem_tab written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */

#ifdef NT
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif


#include "m_pd.h"
#include "iemlib.h"
#include "iem_tab.h"
#include <math.h>
#include <stdio.h>
#include <string.h>


/* -------------------------- tab_cross_corr ------------------------------ */

typedef struct _tab_cross_corr
{
	t_object	x_obj;
	int				x_size_src1;
	int				x_size_src2;
	int				x_size_dst;
	int				x_n;
	float			*x_beg_mem_src1;
	float			*x_beg_mem_src2;
	float			*x_beg_mem_dst;
	float			x_factor;
	t_symbol	*x_sym_scr1;
	t_symbol	*x_sym_scr2;
	t_symbol	*x_sym_dst;
	float			x_delay;
	int				x_counter;
	void			*x_clock;
} t_tab_cross_corr;

static t_class *tab_cross_corr_class;

static void tab_cross_corr_tick(t_tab_cross_corr *x)
{
	x->x_counter++;
	if(x->x_counter < x->x_n)
	{
		t_float *vec_src1, *vec_src2, *vec_dst, sum;
		int j, m;

		vec_src1 = x->x_beg_mem_src1 + x->x_counter;
		vec_src2 = x->x_beg_mem_src2;
		vec_dst = x->x_beg_mem_dst + x->x_counter;
		m = x->x_size_src2;
		sum = 0.0f;
		for(j=0; j<m; j++)
		{
			sum += vec_src1[j]*vec_src2[j];
		}
		vec_dst[0] = sum*x->x_factor;
		clock_delay(x->x_clock, x->x_delay);
	}
	else
	{
		t_garray *a;

		clock_unset(x->x_clock);
		outlet_bang(x->x_obj.ob_outlet);
		a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
		garray_redraw(a);
	}
}

static void tab_cross_corr_time(t_tab_cross_corr *x, t_floatarg time)
{
	if(time < 0.0f)
		time = 0.0f;

	x->x_delay = time;
}

static void tab_cross_corr_factor(t_tab_cross_corr *x, t_floatarg factor)
{
	x->x_factor = factor;
}

static void tab_cross_corr_src1(t_tab_cross_corr *x, t_symbol *s)
{
	x->x_sym_scr1 = s;
}

static void tab_cross_corr_src2(t_tab_cross_corr *x, t_symbol *s)
{
	x->x_sym_scr2 = s;
}

static void tab_cross_corr_dst(t_tab_cross_corr *x, t_symbol *s)
{
	x->x_sym_dst = s;
}

static void tab_cross_corr_bang(t_tab_cross_corr *x)
{
	int i, j, m, n;
	int ok_src1, ok_src2, ok_dst;
	t_float *vec_src1, *vec_src2, *vec_dst;
	t_float sum, f;

	ok_src1 = iem_tab_check_arrays(gensym("tab_cross_corr"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, 0);
	ok_src2 = iem_tab_check_arrays(gensym("tab_cross_corr"), x->x_sym_scr2, &x->x_beg_mem_src2, &x->x_size_src2, 0);
	ok_dst = iem_tab_check_arrays(gensym("tab_cross_corr"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, 0);

	if(ok_src1 && ok_src2 && ok_dst)
	{
		if(x->x_size_src1 > x->x_size_src2)
			n = x->x_size_src1 - x->x_size_src2;
		else
			n = 0;
		if(n > x->x_size_dst)
			x->x_n = x->x_size_dst;
		else
			x->x_n = n;
		f = x->x_factor;
		if(n)
		{
			if(x->x_delay == 0.0f)
			{
				t_garray *a;

				vec_src1 = x->x_beg_mem_src1;
				vec_src2 = x->x_beg_mem_src2;
				vec_dst = x->x_beg_mem_dst;
				m = x->x_size_src2;
				for(i=0; i<n; i++)
				{
					sum = 0.0f;
					for(j=0; j<m; j++)
					{
						sum += vec_src1[i+j]*vec_src2[j];
					}
					vec_dst[i] = sum*f;
				}
				outlet_bang(x->x_obj.ob_outlet);
				a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
				garray_redraw(a);
			}
			else
			{
				x->x_counter = 0;
				vec_src1 = x->x_beg_mem_src1 + x->x_counter;
				vec_src2 = x->x_beg_mem_src2;
				vec_dst = x->x_beg_mem_dst + x->x_counter;
				m = x->x_size_src2;
				sum = 0.0f;
				for(j=0; j<m; j++)
				{
					sum += vec_src1[j]*vec_src2[j];
				}
				vec_dst[0] = sum*f;
				
				clock_delay(x->x_clock, x->x_delay);
			}
		}
	}
}

static void tab_cross_corr_free(t_tab_cross_corr *x)
{
	clock_free(x->x_clock);
}

static void *tab_cross_corr_new(t_symbol *s, int argc, t_atom *argv)
{
	t_tab_cross_corr *x = (t_tab_cross_corr *)pd_new(tab_cross_corr_class);
	t_symbol	*src1, *src2, *dst;
	t_float time, factor;

	if((argc >= 3) &&
		IS_A_SYMBOL(argv,0) &&
		IS_A_SYMBOL(argv,1) &&
		IS_A_SYMBOL(argv,2) &&
		IS_A_FLOAT(argv,3) &&
		IS_A_FLOAT(argv,4))
	{
		src1 = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		src2 = (t_symbol *)atom_getsymbolarg(1, argc, argv);
		dst = (t_symbol *)atom_getsymbolarg(2, argc, argv);
		factor = (t_float)atom_getfloatarg(3, argc, argv);
		time = (t_float)atom_getfloatarg(4, argc, argv);
	}
	else
	{
		post("tab_cross_corr-ERROR: need 3 symbol + 2 float arguments:");
		post("  source_reference_array_name + source_measure_array_name + destination_array_name + norm_factor + calculation-time-per-sample_ms");
		return(0);
	}

	if(time < 0.0f)
		time = 0.0f;

	x->x_delay = time;
	x->x_factor = factor;
	x->x_sym_scr1 = src1;
	x->x_sym_scr2 = src2;
	x->x_sym_dst = dst;
	outlet_new(&x->x_obj, &s_bang);
	x->x_clock = clock_new(x, (t_method)tab_cross_corr_tick);
	return(x);
}

void tab_cross_corr_setup(void)
{
	tab_cross_corr_class = class_new(gensym("tab_cross_corr"), (t_newmethod)tab_cross_corr_new, (t_method)tab_cross_corr_free,
					 sizeof(t_tab_cross_corr), 0, A_GIMME, 0);
	class_addbang(tab_cross_corr_class, (t_method)tab_cross_corr_bang);
	class_addmethod(tab_cross_corr_class, (t_method)tab_cross_corr_time, gensym("time"), A_DEFFLOAT, 0);
	class_addmethod(tab_cross_corr_class, (t_method)tab_cross_corr_factor, gensym("factor"), A_DEFFLOAT, 0);
	class_addmethod(tab_cross_corr_class, (t_method)tab_cross_corr_src2, gensym("src2"), A_DEFSYMBOL, 0);
	class_addmethod(tab_cross_corr_class, (t_method)tab_cross_corr_src1, gensym("src1"), A_DEFSYMBOL, 0);
	class_addmethod(tab_cross_corr_class, (t_method)tab_cross_corr_dst, gensym("dst"), A_DEFSYMBOL, 0);
	class_sethelpsymbol(tab_cross_corr_class, gensym("iemhelp2/tab_cross_corr-help"));
}

--- NEW FILE: iem_tab.dsp ---
# Microsoft Developer Studio Project File - Name="iem_tab" - Package Owner=<4>
# Microsoft Developer Studio Generated Build File, Format Version 6.00
# ** NICHT BEARBEITEN **

# TARGTYPE "Win32 (x86) External Target" 0x0106

CFG=iem_tab - Win32 Debug
!MESSAGE Dies ist kein gültiges Makefile. Zum Erstellen dieses Projekts mit NMAKE
!MESSAGE verwenden Sie den Befehl "Makefile exportieren" und führen Sie den Befehl
!MESSAGE 
!MESSAGE NMAKE /f "iem_tab.mak".
!MESSAGE 
!MESSAGE Sie können beim Ausführen von NMAKE eine Konfiguration angeben
!MESSAGE durch Definieren des Makros CFG in der Befehlszeile. Zum Beispiel:
!MESSAGE 
!MESSAGE NMAKE /f "iem_tab.mak" CFG="iem_tab - Win32 Debug"
!MESSAGE 
!MESSAGE Für die Konfiguration stehen zur Auswahl:
!MESSAGE 
!MESSAGE "iem_tab - Win32 Release" (basierend auf  "Win32 (x86) External Target")
!MESSAGE "iem_tab - Win32 Debug" (basierend auf  "Win32 (x86) External Target")
!MESSAGE 

# Begin Project
# PROP AllowPerConfigDependencies 0
# PROP Scc_ProjName ""
# PROP Scc_LocalPath ""

!IF  "$(CFG)" == "iem_tab - Win32 Release"

# PROP BASE Use_Debug_Libraries 0
# PROP BASE Output_Dir "Release"
# PROP BASE Intermediate_Dir "Release"
# PROP BASE Cmd_Line "NMAKE /f makefile_win"
# PROP BASE Rebuild_Opt "/a"
# PROP BASE Target_File "makefile_win.exe"
# PROP BASE Bsc_Name "makefile_win.bsc"
# PROP BASE Target_Dir ""
# PROP Use_Debug_Libraries 0
# PROP Output_Dir "Release"
# PROP Intermediate_Dir "Release"
# PROP Cmd_Line "NMAKE /f makefile_win"
# PROP Rebuild_Opt "/a"
# PROP Target_File "iem_tab.exe"
# PROP Bsc_Name "iem_tab.bsc"
# PROP Target_Dir ""

!ELSEIF  "$(CFG)" == "iem_tab - Win32 Debug"

# PROP BASE Use_Debug_Libraries 1
# PROP BASE Output_Dir "Debug"
# PROP BASE Intermediate_Dir "Debug"
# PROP BASE Cmd_Line "NMAKE /f makefile_win"
# PROP BASE Rebuild_Opt "/a"
# PROP BASE Target_File "makefile_win.exe"
# PROP BASE Bsc_Name "makefile_win.bsc"
# PROP BASE Target_Dir ""
# PROP Use_Debug_Libraries 1
# PROP Output_Dir "Debug"
# PROP Intermediate_Dir "Debug"
# PROP Cmd_Line "NMAKE /f makefile_win"
# PROP Rebuild_Opt "/a"
# PROP Target_File "iem_tab.exe"
# PROP Bsc_Name "iem_tab.bsc"
# PROP Target_Dir ""

!ENDIF 

# Begin Target

# Name "iem_tab - Win32 Release"
# Name "iem_tab - Win32 Debug"

!IF  "$(CFG)" == "iem_tab - Win32 Release"

!ELSEIF  "$(CFG)" == "iem_tab - Win32 Debug"

!ENDIF 

# Begin Source File

SOURCE=.\makefile_win
# End Source File
# End Target
# End Project

--- NEW FILE: tab_le.c ---
/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.

iem_tab written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */

#ifdef NT
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif


#include "m_pd.h"
#include "iemlib.h"
#include "iem_tab.h"
#include <math.h>
#include <stdio.h>
#include <string.h>


/* -------------------------- tab_le ------------------------------ */

typedef struct _tab_le
{
	t_object	x_obj;
	int				x_size_src1;
	int				x_size_src2;
	int				x_size_dst;
	int				x_offset_src1;
	int				x_offset_src2;
	int				x_offset_dst;
	float			*x_beg_mem_src1;
	float			*x_beg_mem_src2;
	float			*x_beg_mem_dst;
	t_symbol	*x_sym_scr1;
	t_symbol	*x_sym_scr2;
	t_symbol	*x_sym_dst;
} t_tab_le;

static t_class *tab_le_class;

static void tab_le_src1(t_tab_le *x, t_symbol *s)
{
	x->x_sym_scr1 = s;
}

static void tab_le_src2(t_tab_le *x, t_symbol *s)
{
	x->x_sym_scr2 = s;
}

static void tab_le_dst(t_tab_le *x, t_symbol *s)
{
	x->x_sym_dst = s;
}

static void tab_le_bang(t_tab_le *x)
{
	int i, n;
	int ok_src1, ok_src2, ok_dst;
	t_float *vec_src1, *vec_src2, *vec_dst;

	ok_src1 = iem_tab_check_arrays(gensym("tab_le"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, 0);
	ok_src2 = iem_tab_check_arrays(gensym("tab_le"), x->x_sym_scr2, &x->x_beg_mem_src2, &x->x_size_src2, 0);
	ok_dst = iem_tab_check_arrays(gensym("tab_le"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, 0);

	if(ok_src1 && ok_src2 && ok_dst)
	{
		if(x->x_size_src1 < x->x_size_dst)
			n = x->x_size_src1;
		else
			n = x->x_size_dst;
		if(x->x_size_src2 < n)
			n = x->x_size_src2;

		vec_src1 = x->x_beg_mem_src1;
		vec_src2 = x->x_beg_mem_src2;
		vec_dst = x->x_beg_mem_dst;
		if(n)
		{
			t_garray *a;

			for(i=0; i<n; i++)
      {
        if(vec_src1[i] <= vec_src2[i])
				  vec_dst[i] = 1.0f;
        else
				  vec_dst[i] = 0.0f;
      }
			outlet_bang(x->x_obj.ob_outlet);
			a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
			garray_redraw(a);
		}
	}
}

static void tab_le_list(t_tab_le *x, t_symbol *s, int argc, t_atom *argv)
{
	int beg_src1, beg_src2, beg_dst;
	int i, n;
	int ok_src1, ok_src2, ok_dst;
	t_float *vec_src1, *vec_src2, *vec_dst;

	if((argc >= 4) &&
		IS_A_FLOAT(argv,0) &&
		IS_A_FLOAT(argv,1) &&
		IS_A_FLOAT(argv,2) &&
		IS_A_FLOAT(argv,3))
	{
		beg_src1 = (int)atom_getintarg(0, argc, argv);
		beg_src2 = (int)atom_getintarg(1, argc, argv);
		beg_dst = (int)atom_getintarg(2, argc, argv);
		n = (int)atom_getintarg(3, argc, argv);
		if(beg_src1 < 0)
			beg_src1 = 0;
		if(beg_src2 < 0)
			beg_src2 = 0;
		if(beg_dst < 0)
			beg_dst = 0;
		if(n < 0)
			n = 0;

		ok_src1 = iem_tab_check_arrays(gensym("tab_le"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, beg_src1+n);
		ok_src2 = iem_tab_check_arrays(gensym("tab_le"), x->x_sym_scr2, &x->x_beg_mem_src2, &x->x_size_src2, beg_src2+n);
		ok_dst = iem_tab_check_arrays(gensym("tab_le"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, beg_dst+n);

		if(ok_src1 && ok_src2 && ok_dst)
		{
			vec_src1 = x->x_beg_mem_src1 + beg_src1;
			vec_src2 = x->x_beg_mem_src2 + beg_src2;
			vec_dst = x->x_beg_mem_dst + beg_dst;
			if(n)
			{
				t_garray *a;

				for(i=0; i<n; i++)
        {
          if(vec_src1[i] <= vec_src2[i])
				    vec_dst[i] = 1.0f;
          else
				    vec_dst[i] = 0.0f;
        }
				outlet_bang(x->x_obj.ob_outlet);
				a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
				garray_redraw(a);
			}
		}
	}
	else
	{
		post("tab_le-ERROR: list need 4 float arguments:");
		post("  source1_offset + source2_offset + destination_offset + number_of_samples_to_compare");
	}
}

static void tab_le_free(t_tab_le *x)
{
}

static void *tab_le_new(t_symbol *s, int argc, t_atom *argv)
{
	t_tab_le *x = (t_tab_le *)pd_new(tab_le_class);
	t_symbol	*src1, *src2, *dst;
	t_float time;

	if((argc >= 3) &&
		IS_A_SYMBOL(argv,0) &&
		IS_A_SYMBOL(argv,1) &&
		IS_A_SYMBOL(argv,2))
	{
		src1 = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		src2 = (t_symbol *)atom_getsymbolarg(1, argc, argv);
		dst = (t_symbol *)atom_getsymbolarg(2, argc, argv);
	}
	else if((argc >= 2) &&
		IS_A_SYMBOL(argv,0) &&
		IS_A_SYMBOL(argv,1))
	{
		src1 = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		dst = src1;
		src2 = (t_symbol *)atom_getsymbolarg(1, argc, argv);
	}
	else
	{
		post("tab_le-ERROR: need 3 symbols arguments:");
		post("  source1_array_name + source2_array_name + destination_array_name");
		return(0);
	}

	x->x_sym_scr1 = src1;
	x->x_sym_scr2 = src2;
	x->x_sym_dst = dst;
	outlet_new(&x->x_obj, &s_bang);
	return(x);
}

void tab_le_setup(void)
{
	tab_le_class = class_new(gensym("tab_le"), (t_newmethod)tab_le_new, (t_method)tab_le_free,
					 sizeof(t_tab_le), 0, A_GIMME, 0);
	class_addbang(tab_le_class, (t_method)tab_le_bang);
	class_addlist(tab_le_class, (t_method)tab_le_list);
	class_addmethod(tab_le_class, (t_method)tab_le_src1, gensym("src1"), A_DEFSYMBOL, 0);
	class_addmethod(tab_le_class, (t_method)tab_le_src2, gensym("src2"), A_DEFSYMBOL, 0);
	class_addmethod(tab_le_class, (t_method)tab_le_dst, gensym("dst"), A_DEFSYMBOL, 0);
	class_sethelpsymbol(tab_le_class, gensym("iemhelp2/tab_le-help"));
}

--- NEW FILE: tab_const.c ---
/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.

iem_tab written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */

#ifdef NT
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif


#include "m_pd.h"
#include "iemlib.h"
#include "iem_tab.h"
#include <math.h>
#include <stdio.h>
#include <string.h>


/* -------------------------- tab_const ------------------------------ */

typedef struct _tab_const
{
	t_object	x_obj;
	int				x_size_dst;
	int				x_offset_dst;
	t_float		x_const;
	t_float		*x_beg_mem_dst;
	t_symbol	*x_sym_dst;
} t_tab_const;

static t_class *tab_const_class;

static void tab_const_dst(t_tab_const *x, t_symbol *s)
{
	x->x_sym_dst = s;
}

static void tab_const_bang(t_tab_const *x)
{
	int i, n;
	int ok_dst;
	t_float *vec_dst;

	ok_dst = iem_tab_check_arrays(gensym("tab_const"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, 0);

	if(ok_dst)
	{
		n = x->x_size_dst;
		vec_dst = x->x_beg_mem_dst;
		if(n)
		{
			t_garray *a;

			for(i=0; i<n; i++)
				vec_dst[i] = 0.0f;
			outlet_bang(x->x_obj.ob_outlet);
			a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
			garray_redraw(a);
		}
	}
}

static void tab_const_float(t_tab_const *x, t_floatarg c)
{
	int i, n;
	int ok_dst;
	t_float *vec_dst;

	ok_dst = iem_tab_check_arrays(gensym("tab_const"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, 0);

	if(ok_dst)
	{
		n = x->x_size_dst;
		vec_dst = x->x_beg_mem_dst;
		if(n)
		{
			t_garray *a;

			for(i=0; i<n; i++)
				vec_dst[i] = c;
			outlet_bang(x->x_obj.ob_outlet);
			a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
			garray_redraw(a);
		}
	}
}

static void tab_const_list(t_tab_const *x, t_symbol *s, int argc, t_atom *argv)
{
	int beg_dst;
	int i, n;
	int ok_dst;
	t_float *vec_dst, c;

	if((argc >= 3) &&
		IS_A_FLOAT(argv,0) &&
		IS_A_FLOAT(argv,1) &&
		IS_A_FLOAT(argv,2))
	{
		beg_dst = (int)atom_getintarg(0, argc, argv);
		n = (int)atom_getintarg(1, argc, argv);
		c = (t_float)atom_getfloatarg(2, argc, argv);
		if(beg_dst < 0)
			beg_dst = 0;
		if(n < 0)
			n = 0;

		ok_dst = iem_tab_check_arrays(gensym("tab_const"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, beg_dst+n);

		if(ok_dst)
		{
			vec_dst = x->x_beg_mem_dst + beg_dst;
			if(n)
			{
				t_garray *a;

				for(i=0; i<n; i++)
					vec_dst[i] = c;
				outlet_bang(x->x_obj.ob_outlet);
				a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
				garray_redraw(a);
			}
		}
	}
	else
	{
		post("tab_const-ERROR: list need 3 float arguments:");
		post("  destination_offset + number_of_samples_to_copy + constant-value");
	}
}

static void tab_const_free(t_tab_const *x)
{
}

static void *tab_const_new(t_symbol *s, int argc, t_atom *argv)
{
	t_tab_const *x = (t_tab_const *)pd_new(tab_const_class);
	t_symbol	*dst;
	t_float time;

	if((argc >= 1) &&
		IS_A_SYMBOL(argv,0))
	{
		dst = (t_symbol *)atom_getsymbolarg(0, argc, argv);
	}
	else
	{
		post("tab_const-ERROR: need 1 symbol argument:");
		post("  destination_array_name");
		return(0);
	}

	x->x_sym_dst = dst;
	outlet_new(&x->x_obj, &s_bang);
	return(x);
}

void tab_const_setup(void)
{
	tab_const_class = class_new(gensym("tab_const"), (t_newmethod)tab_const_new, (t_method)tab_const_free,
					 sizeof(t_tab_const), 0, A_GIMME, 0);
	class_addbang(tab_const_class, (t_method)tab_const_bang);
	class_addfloat(tab_const_class, (t_method)tab_const_float);
	class_addlist(tab_const_class, (t_method)tab_const_list);
	class_addmethod(tab_const_class, (t_method)tab_const_dst, gensym("dst"), A_DEFSYMBOL, 0);
	class_sethelpsymbol(tab_const_class, gensym("iemhelp2/tab_const-help"));
}

--- NEW FILE: tab_conv.c ---
/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.

iem_tab written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */

#ifdef NT
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif


#include "m_pd.h"
#include "iemlib.h"
#include "iem_tab.h"
#include <math.h>
#include <stdio.h>
#include <string.h>


/* -------------------------- tab_conv ------------------------------ */

typedef struct _tab_conv
{
	t_object	x_obj;
	int				x_size_src1;
	int				x_size_src2;
	int				x_size_dst;
	int				x_offset_src1;
	int				x_offset_src2;
	int				x_offset_dst;
	float			*x_beg_mem_src1;
	float			*x_beg_mem_src2;
	float			*x_beg_mem_dst;
	t_symbol	*x_sym_scr1;
	t_symbol	*x_sym_scr2;
	t_symbol	*x_sym_dst;
} t_tab_conv;

static t_class *tab_conv_class;

static void tab_conv_src1(t_tab_conv *x, t_symbol *s)
{
	x->x_sym_scr1 = s;
}

static void tab_conv_src2(t_tab_conv *x, t_symbol *s)
{
	x->x_sym_scr2 = s;
}

static void tab_conv_dst(t_tab_conv *x, t_symbol *s)
{
	x->x_sym_dst = s;
}

static void tab_conv_bang(t_tab_conv *x)
{
	int i, j, k, l, min_s2, plu_s2, n;
	int ok_src1, ok_src2, ok_dst;
	t_float *vec_src1, *vec_src2, *vec_dst;
  t_float sum=0.0f;

	ok_src1 = iem_tab_check_arrays(gensym("tab_conv"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, 0);
	ok_src2 = iem_tab_check_arrays(gensym("tab_conv"), x->x_sym_scr2, &x->x_beg_mem_src2, &x->x_size_src2, 0);
	ok_dst = iem_tab_check_arrays(gensym("tab_conv"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, 0);

	if(ok_src1 && ok_src2 && ok_dst)
	{
		if(x->x_size_src1 < x->x_size_dst)
			n = x->x_size_src1;
		else
			n = x->x_size_dst;
		if(x->x_size_src2 < n)
    {
      vec_src1 = x->x_beg_mem_src1;
		  vec_src2 = x->x_beg_mem_src2;
		  vec_dst = x->x_beg_mem_dst;
		  if(n)
		  {
			  t_garray *a;

        min_s2 = -x->x_size_src2 / 2;
        plu_s2 = min_s2 + x->x_size_src2;
			  for(i=0; i<n; i++)
        {
          sum = 0.0f;
          for(j=min_s2, l=0; j<plu_s2; j++, l++)
          {
            k = j + i;
            if((k >= 0) && (k < n))
			        sum += vec_src1[k] * vec_src2[l];
          }
		      vec_dst[i] = sum;
        }
			  outlet_bang(x->x_obj.ob_outlet);
			  a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
			  garray_redraw(a);
      }
		}
	}
}

static void tab_conv_list(t_tab_conv *x, t_symbol *s, int argc, t_atom *argv)
{
  int beg_src1, beg_src2, beg_dst;
  int n_src1, n_src2;
  int i, j, k, l, min_s2, plu_s2;
  int ok_src1, ok_src2, ok_dst;
  t_float *vec_src1, *vec_src2, *vec_dst;
  t_float sum=0.0f;
  
  if((argc >= 5) &&
    IS_A_FLOAT(argv,0) &&
    IS_A_FLOAT(argv,1) &&
    IS_A_FLOAT(argv,2) &&
    IS_A_FLOAT(argv,3) &&
    IS_A_FLOAT(argv,4))
  {
    beg_src1 = (int)atom_getintarg(0, argc, argv);
    beg_src2 = (int)atom_getintarg(1, argc, argv);
    beg_dst = (int)atom_getintarg(2, argc, argv);
    n_src1 = (int)atom_getintarg(3, argc, argv);
    n_src2 = (int)atom_getintarg(4, argc, argv);
    if(beg_src1 < 0)
      beg_src1 = 0;
    if(beg_src2 < 0)
      beg_src2 = 0;
    if(beg_dst < 0)
      beg_dst = 0;
    if(n_src1 < 0)
      n_src1 = 0;
    if(n_src2 < 0)
      n_src2 = 0;
    
    ok_src1 = iem_tab_check_arrays(gensym("tab_conv"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, beg_src1+n_src1);
    ok_src2 = iem_tab_check_arrays(gensym("tab_conv"), x->x_sym_scr2, &x->x_beg_mem_src2, &x->x_size_src2, beg_src2+n_src2);
    ok_dst = iem_tab_check_arrays(gensym("tab_conv"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, beg_dst+n_src1);
    
    if(ok_src1 && ok_src2 && ok_dst)
    {
      if(n_src2 < n_src1)
      {
        vec_src1 = x->x_beg_mem_src1 + beg_src1;
        vec_src2 = x->x_beg_mem_src2 + beg_src2;
        vec_dst = x->x_beg_mem_dst + beg_dst;
        if(n_src1)
        {
          t_garray *a;
          
          min_s2 = -n_src2 / 2;
          plu_s2 = min_s2 + n_src2;
          for(i=0; i<n_src1; i++)
          {
            sum = 0.0f;
            for(j=min_s2, l=0; j<plu_s2; j++, l++)
            {
              k = j + i;
              if((k >= 0) && (k < n_src1))
                sum += vec_src1[k] * vec_src2[l];
            }
            vec_dst[i] = sum;
          }
          outlet_bang(x->x_obj.ob_outlet);
          a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
          garray_redraw(a);
        }
      }
    }
  }
  else
  {
    post("tab_conv-ERROR: list need 5 float arguments:");
    post("  source1_offset + source2_offset + destination_offset + number_of_samples_to_convolute + convolution_window_width");
  }
}

static void tab_conv_free(t_tab_conv *x)
{
}

static void *tab_conv_new(t_symbol *s, int argc, t_atom *argv)
{
	t_tab_conv *x = (t_tab_conv *)pd_new(tab_conv_class);
	t_symbol	*src1, *src2, *dst;
	t_float time;

	if((argc >= 3) &&
		IS_A_SYMBOL(argv,0) &&
		IS_A_SYMBOL(argv,1) &&
		IS_A_SYMBOL(argv,2))
	{
		src1 = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		src2 = (t_symbol *)atom_getsymbolarg(1, argc, argv);
		dst = (t_symbol *)atom_getsymbolarg(2, argc, argv);
	}
	else if((argc >= 2) &&
		IS_A_SYMBOL(argv,0) &&
		IS_A_SYMBOL(argv,1))
	{
		src1 = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		dst = src1;
		src2 = (t_symbol *)atom_getsymbolarg(1, argc, argv);
	}
	else
	{
		post("tab_conv-ERROR: need 3 symbols arguments:");
		post("  source1_array_name + source2_array_name + destination_array_name");
		return(0);
	}

	x->x_sym_scr1 = src1;
	x->x_sym_scr2 = src2;
	x->x_sym_dst = dst;
	outlet_new(&x->x_obj, &s_bang);
	return(x);
}

void tab_conv_setup(void)
{
	tab_conv_class = class_new(gensym("tab_conv"), (t_newmethod)tab_conv_new, (t_method)tab_conv_free,
					 sizeof(t_tab_conv), 0, A_GIMME, 0);
	class_addbang(tab_conv_class, (t_method)tab_conv_bang);
	class_addlist(tab_conv_class, (t_method)tab_conv_list);
	class_addmethod(tab_conv_class, (t_method)tab_conv_src1, gensym("src1"), A_DEFSYMBOL, 0);
	class_addmethod(tab_conv_class, (t_method)tab_conv_src2, gensym("src2"), A_DEFSYMBOL, 0);
	class_addmethod(tab_conv_class, (t_method)tab_conv_dst, gensym("dst"), A_DEFSYMBOL, 0);
	class_sethelpsymbol(tab_conv_class, gensym("iemhelp2/tab_conv-help"));
}

--- NEW FILE: tab_sum.c ---
/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.

iem_tab written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */

#ifdef NT
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif


#include "m_pd.h"
#include "iemlib.h"
#include "iem_tab.h"
#include <math.h>
#include <stdio.h>
#include <string.h>


/* -------------------------- tab_sum ------------------------------ */

typedef struct _tab_sum
{
	t_object	x_obj;
	int				x_size_src1;
	int				x_offset_src1;
	float			*x_beg_mem_src1;
	t_symbol	*x_sym_scr1;
	void			*x_bang_out;
	void			*x_sum_out;
} t_tab_sum;

static t_class *tab_sum_class;

static void tab_sum_src(t_tab_sum *x, t_symbol *s)
{
	x->x_sym_scr1 = s;
}

static void tab_sum_bang(t_tab_sum *x)
{
	int i, n;
	int ok_src;
	t_float *vec_src;
	t_float sum=0.0f;

	ok_src = iem_tab_check_arrays(gensym("tab_sum"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, 0);

	if(ok_src)
	{
		n = x->x_size_src1;
		vec_src = x->x_beg_mem_src1;
		if(n)
		{
			for(i=0; i<n; i++)
			{
				sum += vec_src[i];
			}
			outlet_float(x->x_sum_out, sum);
			outlet_bang(x->x_bang_out);
		}
	}
}

static void tab_sum_list(t_tab_sum *x, t_symbol *s, int argc, t_atom *argv)
{
	int beg_src;
	int i, n;
	int ok_src;
	t_float *vec_src;
	t_float sum=0.0f;

	if((argc >= 2) &&
		IS_A_FLOAT(argv,0) &&
		IS_A_FLOAT(argv,1))
	{
		beg_src = (int)atom_getintarg(0, argc, argv);
		n = (int)atom_getintarg(1, argc, argv);
		if(beg_src < 0)
			beg_src = 0;
		if(n < 0)
			n = 0;

		ok_src = iem_tab_check_arrays(gensym("tab_sum"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, beg_src+n);

		if(ok_src)
		{
			vec_src = x->x_beg_mem_src1 + beg_src;
			if(n)
			{
				for(i=0; i<n; i++)
				{
					sum += vec_src[i];
				}
				outlet_float(x->x_sum_out, sum);
				outlet_bang(x->x_bang_out);
			}
		}
	}
	else
	{
		post("tab_sum-ERROR: list need 2 float arguments:");
		post("  source_offset + number_of_samples_to_calc_sum-value");
	}
}

static void tab_sum_free(t_tab_sum *x)
{
}

static void *tab_sum_new(t_symbol *s, int argc, t_atom *argv)
{
	t_tab_sum *x = (t_tab_sum *)pd_new(tab_sum_class);
	t_symbol	*src;

	if((argc >= 1) &&
		IS_A_SYMBOL(argv,0))
	{
		src = (t_symbol *)atom_getsymbolarg(0, argc, argv);
	}
	else
	{
		post("tab_sum-ERROR: need 1 symbol argument:");
		post("  source_array_name");
		return(0);
	}

	x->x_sym_scr1 = src;
	x->x_bang_out = outlet_new(&x->x_obj, &s_bang);
	x->x_sum_out = outlet_new(&x->x_obj, &s_float);
	return(x);
}

void tab_sum_setup(void)
{
	tab_sum_class = class_new(gensym("tab_sum"), (t_newmethod)tab_sum_new, (t_method)tab_sum_free,
					 sizeof(t_tab_sum), 0, A_GIMME, 0);
	class_addbang(tab_sum_class, (t_method)tab_sum_bang);
	class_addlist(tab_sum_class, (t_method)tab_sum_list);
	class_addmethod(tab_sum_class, (t_method)tab_sum_src, gensym("src"), A_DEFSYMBOL, 0);
	class_addmethod(tab_sum_class, (t_method)tab_sum_src, gensym("src1"), A_DEFSYMBOL, 0);
	class_sethelpsymbol(tab_sum_class, gensym("iemhelp2/tab_sum-help"));
}

--- NEW FILE: iemlib.h ---
/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.

iemlib.h written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */

#ifndef __IEMLIB_H__
#define __IEMLIB_H__


#define IS_A_POINTER(atom,index) ((atom+index)->a_type == A_POINTER)
#define IS_A_FLOAT(atom,index) ((atom+index)->a_type == A_FLOAT)
#define IS_A_SYMBOL(atom,index) ((atom+index)->a_type == A_SYMBOL)
#define IS_A_DOLLAR(atom,index) ((atom+index)->a_type == A_DOLLAR)
#define IS_A_DOLLSYM(atom,index) ((atom+index)->a_type == A_DOLLSYM)
#define IS_A_SEMI(atom,index) ((atom+index)->a_type == A_SEMI)
#define IS_A_COMMA(atom,index) ((atom+index)->a_type == A_COMMA)


#ifdef NT
int sys_noloadbang;
//t_symbol *iemgui_key_sym=0;
#include <io.h>
#else
extern int sys_noloadbang;
//extern t_symbol *iemgui_key_sym;
#include <unistd.h>
#endif

#define DEFDELVS 64
#define XTRASAMPS 4
#define SAMPBLK 4


#define UNITBIT32 1572864.  /* 3*2^19; bit 32 has place value 1 */

/* machine-dependent definitions.  These ifdefs really
should have been by CPU type and not by operating system! */
#ifdef IRIX
/* big-endian.  Most significant byte is at low address in memory */
#define HIOFFSET 0    /* word offset to find MSB */
#define LOWOFFSET 1    /* word offset to find LSB */
#define int32 long  /* a data type that has 32 bits */
#else
#ifdef MSW
/* little-endian; most significant byte is at highest address */
#define HIOFFSET 1
#define LOWOFFSET 0
#define int32 long
#else
#ifdef __FreeBSD__
#include <machine/endian.h>
#if BYTE_ORDER == LITTLE_ENDIAN
#define HIOFFSET 1
#define LOWOFFSET 0
#else
#define HIOFFSET 0    /* word offset to find MSB */
#define LOWOFFSET 1    /* word offset to find LSB */
#endif /* BYTE_ORDER */
#include <sys/types.h>
#define int32 int32_t
#endif
#ifdef __linux__

#include <endian.h>

#if !defined(__BYTE_ORDER) || !defined(__LITTLE_ENDIAN)                         
#error No byte order defined                                                    
#endif                                                                          

#if __BYTE_ORDER == __LITTLE_ENDIAN                                             
#define HIOFFSET 1                                                              
#define LOWOFFSET 0                                                             
#else                                                                           
#define HIOFFSET 0    /* word offset to find MSB */                             
#define LOWOFFSET 1    /* word offset to find LSB */                            
#endif /* __BYTE_ORDER */                                                       

#include <sys/types.h>
#define int32 int32_t

#else
#ifdef __APPLE__
#define HIOFFSET 0    /* word offset to find MSB */
#define LOWOFFSET 1    /* word offset to find LSB */
#define int32 int  /* a data type that has 32 bits */

#endif /* __APPLE__ */
#endif /* __linux__ */
#endif /* MSW */
#endif /* SGI */

union tabfudge
{
  double tf_d;
  int32 tf_i[2];
};

#define IEM_DENORMAL(f) ((((*(unsigned int*)&(f))&0x60000000)==0) || \
(((*(unsigned int*)&(f))&0x60000000)==0x60000000))
/* more stringent test: anything not between 1e-19 and 1e19 in absolute val */

#endif

--- NEW FILE: tab_sqrt.c ---
/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.

iem_tab written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */

#ifdef NT
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif


#include "m_pd.h"
#include "iemlib.h"
#include "iem_tab.h"
#include <math.h>
#include <stdio.h>
#include <string.h>

#define TABDUMTAB1SIZE 256
#define TABDUMTAB2SIZE 1024

static t_float tab_rsqrt_exptab[TABDUMTAB1SIZE], tab_rsqrt_mantissatab[TABDUMTAB2SIZE];

static void init_tab_rsqrt(void)
{
	int i;
	
	for (i=0; i<TABDUMTAB1SIZE; i++)
	{
		t_float f;
		long l = (i ? (i == TABDUMTAB1SIZE-1 ? TABDUMTAB1SIZE-2 : i) : 1)<< 23;

		*(long *)(&f) = l;
		tab_rsqrt_exptab[i] = 1.0f/sqrt(f);	
	}

	for (i=0; i<TABDUMTAB2SIZE; i++)
	{
		t_float f = 1.0f + (1.0f / (t_float)TABDUMTAB2SIZE) * (t_float)i;

		tab_rsqrt_mantissatab[i] = 1.0f / sqrt(f);	
	}
}


/* -------------------------- tab_sqrt ------------------------------ */

typedef struct _tab_sqrt
{
	t_object	x_obj;
	int				x_size_src1;
	int				x_size_dst;
	int				x_offset_src1;
	int				x_offset_dst;
	float			*x_beg_mem_src1;
	float			*x_beg_mem_dst;
	t_symbol	*x_sym_scr1;
	t_symbol	*x_sym_dst;
} t_tab_sqrt;

static t_class *tab_sqrt_class;

static void tab_sqrt_src(t_tab_sqrt *x, t_symbol *s)
{
	x->x_sym_scr1 = s;
}

static void tab_sqrt_dst(t_tab_sqrt *x, t_symbol *s)
{
	x->x_sym_dst = s;
}

static void tab_sqrt_bang(t_tab_sqrt *x)
{
	int i, n;
	int ok_src, ok_dst;
	t_float *vec_src, *vec_dst;

	ok_src = iem_tab_check_arrays(gensym("tab_sqrt"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, 0);
	ok_dst = iem_tab_check_arrays(gensym("tab_sqrt"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, 0);

	if(ok_src && ok_dst)
	{
		if(x->x_size_src1 < x->x_size_dst)
			n = x->x_size_src1;
		else
			n = x->x_size_dst;
		vec_src = x->x_beg_mem_src1;
		vec_dst = x->x_beg_mem_dst;
		if(n)
		{
			t_garray *a;

			while(n--)
			{
				t_float f = *vec_src;
				long l = *(long *)(vec_src++);

				if(f < 0.0f)
					*vec_dst++ = 0.0f;
				else
				{
					t_float g = tab_rsqrt_exptab[(l >> 23) & 0xff] * tab_rsqrt_mantissatab[(l >> 13) & 0x3ff];

					*vec_dst++ = f*g*(1.5f - 0.5f * g * g * f);
				}
			}
			outlet_bang(x->x_obj.ob_outlet);
			a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
			garray_redraw(a);
		}
	}
}

static void tab_sqrt_list(t_tab_sqrt *x, t_symbol *s, int argc, t_atom *argv)
{
	int beg_src, beg_dst;
	int i, n;
	int ok_src, ok_dst;
	t_float *vec_src, *vec_dst;

	if((argc >= 3) &&
		IS_A_FLOAT(argv,0) &&
		IS_A_FLOAT(argv,1) &&
		IS_A_FLOAT(argv,2))
	{
		beg_src = (int)atom_getintarg(0, argc, argv);
		beg_dst = (int)atom_getintarg(1, argc, argv);
		n = (int)atom_getintarg(2, argc, argv);
		if(beg_src < 0)
			beg_src = 0;
		if(beg_dst < 0)
			beg_dst = 0;
		if(n < 0)
			n = 0;

		ok_src = iem_tab_check_arrays(gensym("tab_sqrt"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, beg_src+n);
		ok_dst = iem_tab_check_arrays(gensym("tab_sqrt"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, beg_dst+n);

		if(ok_src && ok_dst)
		{
			vec_src = x->x_beg_mem_src1 + beg_src;
			vec_dst = x->x_beg_mem_dst + beg_dst;
			if(n)
			{
				t_garray *a;

				while(n--)
				{
					t_float f = *vec_src;
					long l = *(long *)(vec_src++);

					if(f < 0.0f)
						*vec_dst++ = 0.0f;
					else
					{
						t_float g = tab_rsqrt_exptab[(l >> 23) & 0xff] * tab_rsqrt_mantissatab[(l >> 13) & 0x3ff];

						*vec_dst++ = f*g*(1.5f - 0.5f * g * g * f);
					}
				}
				outlet_bang(x->x_obj.ob_outlet);
				a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
				garray_redraw(a);
			}
		}
	}
	else
	{
		post("tab_sqrt-ERROR: list need 3 float arguments:");
		post("  source_offset + destination_offset + number_of_samples_to_sqrt");
	}
}

static void tab_sqrt_free(t_tab_sqrt *x)
{
}

static void *tab_sqrt_new(t_symbol *s, int argc, t_atom *argv)
{
	t_tab_sqrt *x = (t_tab_sqrt *)pd_new(tab_sqrt_class);
	t_symbol	*src, *dst;

	if((argc >= 2) &&
		IS_A_SYMBOL(argv,0) &&
		IS_A_SYMBOL(argv,1))
	{
		src = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		dst = (t_symbol *)atom_getsymbolarg(1, argc, argv);
	}
	else if((argc >= 1) &&
		IS_A_SYMBOL(argv,0))
	{
		src = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		dst = src;
	}
	else
	{
		post("tab_sqrt-ERROR: need 2 symbols arguments:");
		post("  source_array_name + destination_array_name");
		return(0);
	}

	x->x_sym_scr1 = src;
	x->x_sym_dst = dst;
	outlet_new(&x->x_obj, &s_bang);
	return(x);
}

void tab_sqrt_setup(void)
{
	init_tab_rsqrt();
	tab_sqrt_class = class_new(gensym("tab_sqrt"), (t_newmethod)tab_sqrt_new, (t_method)tab_sqrt_free,
					 sizeof(t_tab_sqrt), 0, A_GIMME, 0);
	class_addbang(tab_sqrt_class, (t_method)tab_sqrt_bang);
	class_addlist(tab_sqrt_class, (t_method)tab_sqrt_list);
	class_addmethod(tab_sqrt_class, (t_method)tab_sqrt_src, gensym("src"), A_DEFSYMBOL, 0);
	class_addmethod(tab_sqrt_class, (t_method)tab_sqrt_src, gensym("src1"), A_DEFSYMBOL, 0);
	class_addmethod(tab_sqrt_class, (t_method)tab_sqrt_dst, gensym("dst"), A_DEFSYMBOL, 0);
	class_sethelpsymbol(tab_sqrt_class, gensym("iemhelp2/tab_sqrt-help"));
}

--- NEW FILE: tab_complex_mul.c ---
/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.

iem_tab written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */

#ifdef NT
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif


#include "m_pd.h"
#include "iemlib.h"
#include "iem_tab.h"
#include <math.h>
#include <stdio.h>
#include <string.h>


/* -------------------------- tab_complex_mul ------------------------------ */

typedef struct _tab_complex_mul
{
	t_object	x_obj;
	int				x_size_src1_re;
	int				x_size_src2_re;
	int				x_size_dst_re;
	int				x_size_src1_im;
	int				x_size_src2_im;
	int				x_size_dst_im;
	int				x_offset_src1_re;
	int				x_offset_src2_re;
	int				x_offset_dst_re;
	int				x_offset_src1_im;
	int				x_offset_src2_im;
	int				x_offset_dst_im;
	float			*x_beg_mem_src1_re;
	float			*x_beg_mem_src2_re;
	float			*x_beg_mem_dst_re;
	float			*x_beg_mem_src1_im;
	float			*x_beg_mem_src2_im;
	float			*x_beg_mem_dst_im;
	t_symbol	*x_sym_scr1_re;
	t_symbol	*x_sym_scr2_re;
	t_symbol	*x_sym_dst_re;
	t_symbol	*x_sym_scr1_im;
	t_symbol	*x_sym_scr2_im;
	t_symbol	*x_sym_dst_im;
} t_tab_complex_mul;

static t_class *tab_complex_mul_class;

static void tab_complex_mul_src1_re(t_tab_complex_mul *x, t_symbol *s)
{
	x->x_sym_scr1_re = s;
}

static void tab_complex_mul_src1_im(t_tab_complex_mul *x, t_symbol *s)
{
	x->x_sym_scr1_im = s;
}

static void tab_complex_mul_src2_re(t_tab_complex_mul *x, t_symbol *s)
{
	x->x_sym_scr2_re = s;
}

static void tab_complex_mul_src2_im(t_tab_complex_mul *x, t_symbol *s)
{
	x->x_sym_scr2_im = s;
}

static void tab_complex_mul_dst_re(t_tab_complex_mul *x, t_symbol *s)
{
	x->x_sym_dst_re = s;
}

static void tab_complex_mul_dst_im(t_tab_complex_mul *x, t_symbol *s)
{
	x->x_sym_dst_im = s;
}

static void tab_complex_mul_bang(t_tab_complex_mul *x)
{
	int i, n;
	int ok_src1_re, ok_src2_re, ok_dst_re;
	int ok_src1_im, ok_src2_im, ok_dst_im;
	t_float *vec_src1_re, *vec_src2_re, *vec_dst_re;
	t_float *vec_src1_im, *vec_src2_im, *vec_dst_im;

	ok_src1_re = iem_tab_check_arrays(gensym("tab_complex_mul"), x->x_sym_scr1_re, &x->x_beg_mem_src1_re, &x->x_size_src1_re, 0);
	ok_src2_re = iem_tab_check_arrays(gensym("tab_complex_mul"), x->x_sym_scr2_re, &x->x_beg_mem_src2_re, &x->x_size_src2_re, 0);
	ok_dst_re = iem_tab_check_arrays(gensym("tab_complex_mul"), x->x_sym_dst_re, &x->x_beg_mem_dst_re, &x->x_size_dst_re, 0);
	ok_src1_im = iem_tab_check_arrays(gensym("tab_complex_mul"), x->x_sym_scr1_im, &x->x_beg_mem_src1_im, &x->x_size_src1_im, 0);
	ok_src2_im = iem_tab_check_arrays(gensym("tab_complex_mul"), x->x_sym_scr2_im, &x->x_beg_mem_src2_im, &x->x_size_src2_im, 0);
	ok_dst_im = iem_tab_check_arrays(gensym("tab_complex_mul"), x->x_sym_dst_im, &x->x_beg_mem_dst_im, &x->x_size_dst_im, 0);

	if(ok_src1_re && ok_src2_re && ok_dst_re && ok_src1_im && ok_src2_im && ok_dst_im)
	{
		if(x->x_size_src1_re < x->x_size_dst_re)
			n = x->x_size_src1_re;
		else
			n = x->x_size_dst_re;
		if(x->x_size_src2_re < n)
			n = x->x_size_src2_re;
		if(x->x_size_src1_im < n)
			n = x->x_size_src1_im;
		if(x->x_size_src2_im < n)
			n = x->x_size_src2_im;
		if(x->x_size_dst_im < n)
			n = x->x_size_dst_im;

		vec_src1_re = x->x_beg_mem_src1_re;
		vec_src2_re = x->x_beg_mem_src2_re;
		vec_dst_re = x->x_beg_mem_dst_re;
		vec_src1_im = x->x_beg_mem_src1_im;
		vec_src2_im = x->x_beg_mem_src2_im;
		vec_dst_im = x->x_beg_mem_dst_im;
		if(n)
		{
			t_garray *a;

			for(i=0; i<n; i++)
			{
				t_float re1, re2, im1, im2;

				re1 = vec_src1_re[i];
				re2 = vec_src2_re[i];
				im1 = vec_src1_im[i];
				im2 = vec_src2_im[i];
				vec_dst_re[i] = re1*re2 - im1*im2;
				vec_dst_im[i] = re1*im2 + im1*re2;
			}
			outlet_bang(x->x_obj.ob_outlet);
			a = (t_garray *)pd_findbyclass(x->x_sym_dst_re, garray_class);
			garray_redraw(a);
			a = (t_garray *)pd_findbyclass(x->x_sym_dst_im, garray_class);
			garray_redraw(a);
		}
	}
}

static void tab_complex_mul_list(t_tab_complex_mul *x, t_symbol *s, int argc, t_atom *argv)
{
	int i, n;
	int beg_src1_re, beg_src2_re, beg_dst_re;
	int beg_src1_im, beg_src2_im, beg_dst_im;
	int ok_src1_re, ok_src2_re, ok_dst_re;
	int ok_src1_im, ok_src2_im, ok_dst_im;
	t_float *vec_src1_re, *vec_src2_re, *vec_dst_re;
	t_float *vec_src1_im, *vec_src2_im, *vec_dst_im;

	if((argc >= 7) &&
		IS_A_FLOAT(argv,0) &&
		IS_A_FLOAT(argv,1) &&
		IS_A_FLOAT(argv,2) &&
		IS_A_FLOAT(argv,3) &&
		IS_A_FLOAT(argv,4) &&
		IS_A_FLOAT(argv,5) &&
		IS_A_FLOAT(argv,6))
	{
		beg_src1_re = (int)atom_getintarg(0, argc, argv);
		beg_src1_im = (int)atom_getintarg(1, argc, argv);
		beg_src2_re = (int)atom_getintarg(2, argc, argv);
		beg_src2_im = (int)atom_getintarg(3, argc, argv);
		beg_dst_re = (int)atom_getintarg(4, argc, argv);
		beg_dst_im = (int)atom_getintarg(5, argc, argv);
		n = (int)atom_getintarg(6, argc, argv);
		if(beg_src1_re < 0)
			beg_src1_re = 0;
		if(beg_src2_re < 0)
			beg_src2_re = 0;
		if(beg_dst_re < 0)
			beg_dst_re = 0;
		if(beg_src1_im < 0)
			beg_src1_im = 0;
		if(beg_src2_im < 0)
			beg_src2_im = 0;
		if(beg_dst_im < 0)
			beg_dst_im = 0;
		if(n < 0)
			n = 0;

		ok_src1_re = iem_tab_check_arrays(gensym("tab_complex_mul"), x->x_sym_scr1_re, &x->x_beg_mem_src1_re, &x->x_size_src1_re, beg_src1_re+n);
		ok_src2_re = iem_tab_check_arrays(gensym("tab_complex_mul"), x->x_sym_scr2_re, &x->x_beg_mem_src2_re, &x->x_size_src2_re, beg_src2_re+n);
		ok_dst_re = iem_tab_check_arrays(gensym("tab_complex_mul"), x->x_sym_dst_re, &x->x_beg_mem_dst_re, &x->x_size_dst_re, beg_dst_re+n);
		ok_src1_im = iem_tab_check_arrays(gensym("tab_complex_mul"), x->x_sym_scr1_im, &x->x_beg_mem_src1_im, &x->x_size_src1_im, beg_src1_im+n);
		ok_src2_im = iem_tab_check_arrays(gensym("tab_complex_mul"), x->x_sym_scr2_im, &x->x_beg_mem_src2_im, &x->x_size_src2_im, beg_src2_im+n);
		ok_dst_im = iem_tab_check_arrays(gensym("tab_complex_mul"), x->x_sym_dst_im, &x->x_beg_mem_dst_im, &x->x_size_dst_im, beg_dst_im+n);

		if(ok_src1_re && ok_src2_re && ok_dst_re && ok_src1_im && ok_src2_im && ok_dst_im)
		{
			vec_src1_re = x->x_beg_mem_src1_re + beg_src1_re;
			vec_src2_re = x->x_beg_mem_src2_re + beg_src2_re;
			vec_dst_re = x->x_beg_mem_dst_re + beg_dst_re;
			vec_src1_im = x->x_beg_mem_src1_im + beg_src1_im;
			vec_src2_im = x->x_beg_mem_src2_im + beg_src2_im;
			vec_dst_im = x->x_beg_mem_dst_im + beg_dst_im;

			if(n)
			{
				t_garray *a;

				for(i=0; i<n;	i++)
				{
					t_float re1, re2, im1, im2;

					re1 = vec_src1_re[i];
					re2 = vec_src2_re[i];
					im1 = vec_src1_im[i];
					im2 = vec_src2_im[i];
					vec_dst_re[i] = re1*re2 - im1*im2;
					vec_dst_im[i] = re1*im2 + im1*re2;
				}
				outlet_bang(x->x_obj.ob_outlet);
				a = (t_garray *)pd_findbyclass(x->x_sym_dst_re, garray_class);
				garray_redraw(a);
				a = (t_garray *)pd_findbyclass(x->x_sym_dst_im, garray_class);
				garray_redraw(a);
			}
		}
	}
	else
	{
		post("tab_complex_mul-ERROR: list need 7 float arguments:");
		post("  source1_real_offset + source1_imag_offset + source2_real_offset + source2_imag_offset + destination_real_offset + destination_imag_offset + number_of_samples_to_complex_mul");
	}
}

static void tab_complex_mul_free(t_tab_complex_mul *x)
{
}

static void *tab_complex_mul_new(t_symbol *s, int argc, t_atom *argv)
{
	t_tab_complex_mul *x = (t_tab_complex_mul *)pd_new(tab_complex_mul_class);
	t_symbol	*src1_re, *src2_re, *dst_re, *src1_im, *src2_im, *dst_im;
	t_float time;

	if((argc >= 6) &&
		IS_A_SYMBOL(argv,0) &&
		IS_A_SYMBOL(argv,1) &&
		IS_A_SYMBOL(argv,2) &&
		IS_A_SYMBOL(argv,3) &&
		IS_A_SYMBOL(argv,4) &&
		IS_A_SYMBOL(argv,5))
	{
		src1_re = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		src1_im = (t_symbol *)atom_getsymbolarg(1, argc, argv);
		src2_re = (t_symbol *)atom_getsymbolarg(2, argc, argv);
		src2_im = (t_symbol *)atom_getsymbolarg(3, argc, argv);
		dst_re = (t_symbol *)atom_getsymbolarg(4, argc, argv);
		dst_im = (t_symbol *)atom_getsymbolarg(5, argc, argv);
	}
	else if((argc >= 4) &&
		IS_A_SYMBOL(argv,0) &&
		IS_A_SYMBOL(argv,1) &&
		IS_A_SYMBOL(argv,2) &&
		IS_A_SYMBOL(argv,4))
	{
		src1_re = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		src1_im = (t_symbol *)atom_getsymbolarg(1, argc, argv);
		src2_re = (t_symbol *)atom_getsymbolarg(2, argc, argv);
		src2_im = (t_symbol *)atom_getsymbolarg(3, argc, argv);
		dst_re = src1_re;
		dst_im = src1_im;
	}
	else
	{
		post("tab_complex_mul-ERROR: need 6 symbols arguments:");
		post("  source1_real_array_name + source1_imag_array_name + source2_real_array_name + source2_imag_array_name + destination_real_array_name + destination_imag_array_name");
		return(0);
	}

	x->x_sym_scr1_re = src1_re;
	x->x_sym_scr1_im = src1_im;
	x->x_sym_scr2_re = src2_re;
	x->x_sym_scr2_im = src2_im;
	x->x_sym_dst_re = dst_re;
	x->x_sym_dst_im = dst_im;
	outlet_new(&x->x_obj, &s_bang);
	return(x);
}

void tab_complex_mul_setup(void)
{
	tab_complex_mul_class = class_new(gensym("tab_complex_mul"), (t_newmethod)tab_complex_mul_new, (t_method)tab_complex_mul_free,
					 sizeof(t_tab_complex_mul), 0, A_GIMME, 0);
	class_addbang(tab_complex_mul_class, (t_method)tab_complex_mul_bang);
	class_addlist(tab_complex_mul_class, (t_method)tab_complex_mul_list);
	class_addmethod(tab_complex_mul_class, (t_method)tab_complex_mul_src1_re, gensym("src1_re"), A_DEFSYMBOL, 0);
	class_addmethod(tab_complex_mul_class, (t_method)tab_complex_mul_src2_re, gensym("src2_re"), A_DEFSYMBOL, 0);
	class_addmethod(tab_complex_mul_class, (t_method)tab_complex_mul_dst_re, gensym("dst_re"), A_DEFSYMBOL, 0);
	class_addmethod(tab_complex_mul_class, (t_method)tab_complex_mul_src1_im, gensym("src1_im"), A_DEFSYMBOL, 0);
	class_addmethod(tab_complex_mul_class, (t_method)tab_complex_mul_src2_im, gensym("src2_im"), A_DEFSYMBOL, 0);
	class_addmethod(tab_complex_mul_class, (t_method)tab_complex_mul_dst_im, gensym("dst_im"), A_DEFSYMBOL, 0);
	class_sethelpsymbol(tab_complex_mul_class, gensym("iemhelp2/tab_complex_mul-help"));
}

--- NEW FILE: tab_div.c ---
/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.

iem_tab written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */

#ifdef NT
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif


#include "m_pd.h"
#include "iemlib.h"
#include "iem_tab.h"
#include <math.h>
#include <stdio.h>
#include <string.h>


/* -------------------------- tab_div ------------------------------ */

typedef struct _tab_div
{
	t_object	x_obj;
	int				x_size_src1;
	int				x_size_src2;
	int				x_size_dst;
	int				x_offset_src1;
	int				x_offset_src2;
	int				x_offset_dst;
	float			*x_beg_mem_src1;
	float			*x_beg_mem_src2;
	float			*x_beg_mem_dst;
	t_symbol	*x_sym_scr1;
	t_symbol	*x_sym_scr2;
	t_symbol	*x_sym_dst;
} t_tab_div;

static t_class *tab_div_class;

static void tab_div_src1(t_tab_div *x, t_symbol *s)
{
	x->x_sym_scr1 = s;
}

static void tab_div_src2(t_tab_div *x, t_symbol *s)
{
	x->x_sym_scr2 = s;
}

static void tab_div_dst(t_tab_div *x, t_symbol *s)
{
	x->x_sym_dst = s;
}

static void tab_div_bang(t_tab_div *x)
{
	int i, n;
	int ok_src1, ok_src2, ok_dst;
	t_float *vec_src1, *vec_src2, *vec_dst;

	ok_src1 = iem_tab_check_arrays(gensym("tab_div"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, 0);
	ok_src2 = iem_tab_check_arrays(gensym("tab_div"), x->x_sym_scr2, &x->x_beg_mem_src2, &x->x_size_src2, 0);
	ok_dst = iem_tab_check_arrays(gensym("tab_div"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, 0);

	if(ok_src1 && ok_src2 && ok_dst)
	{
		if(x->x_size_src1 < x->x_size_dst)
			n = x->x_size_src1;
		else
			n = x->x_size_dst;
		if(x->x_size_src2 < n)
			n = x->x_size_src2;

		vec_src1 = x->x_beg_mem_src1;
		vec_src2 = x->x_beg_mem_src2;
		vec_dst = x->x_beg_mem_dst;
		if(n)
		{
			t_garray *a;

			for(i=0; i<n; i++)
			{
				if(vec_src2[i] == 0.0f)
					vec_dst[i] = 0.0f;
				else
					vec_dst[i] = vec_src1[i] / vec_src2[i];
			}
			outlet_bang(x->x_obj.ob_outlet);
			a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
			garray_redraw(a);
		}
	}
}

static void tab_div_list(t_tab_div *x, t_symbol *s, int argc, t_atom *argv)
{
	int beg_src1, beg_src2, beg_dst;
	int i, n;
	int ok_src1, ok_src2, ok_dst;
	t_float *vec_src1, *vec_src2, *vec_dst;

	if((argc >= 4) &&
		IS_A_FLOAT(argv,0) &&
		IS_A_FLOAT(argv,1) &&
		IS_A_FLOAT(argv,2) &&
		IS_A_FLOAT(argv,3))
	{
		beg_src1 = (int)atom_getintarg(0, argc, argv);
		beg_src2 = (int)atom_getintarg(1, argc, argv);
		beg_dst = (int)atom_getintarg(2, argc, argv);
		n = (int)atom_getintarg(3, argc, argv);
		if(beg_src1 < 0)
			beg_src1 = 0;
		if(beg_src2 < 0)
			beg_src2 = 0;
		if(beg_dst < 0)
			beg_dst = 0;
		if(n < 0)
			n = 0;

		ok_src1 = iem_tab_check_arrays(gensym("tab_div"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, beg_src1+n);
		ok_src2 = iem_tab_check_arrays(gensym("tab_div"), x->x_sym_scr2, &x->x_beg_mem_src2, &x->x_size_src2, beg_src2+n);
		ok_dst = iem_tab_check_arrays(gensym("tab_div"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, beg_dst+n);

		if(ok_src1 && ok_src2 && ok_dst)
		{
			vec_src1 = x->x_beg_mem_src1 + beg_src1;
			vec_src2 = x->x_beg_mem_src2 + beg_src2;
			vec_dst = x->x_beg_mem_dst + beg_dst;
			if(n)
			{
				t_garray *a;

				for(i=0; i<n; i++)
				{
					if(vec_src2[i] == 0.0f)
						vec_dst[i] = 0.0f;
					else
						vec_dst[i] = vec_src1[i] / vec_src2[i];
				}
				outlet_bang(x->x_obj.ob_outlet);
				a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
				garray_redraw(a);
			}
		}
	}
	else
	{
		post("tab_div-ERROR: list need 4 float arguments:");
		post("  source1_offset + source2_offset + destination_offset + number_of_samples_to_div");
	}
}

static void tab_div_free(t_tab_div *x)
{
}

static void *tab_div_new(t_symbol *s, int argc, t_atom *argv)
{
	t_tab_div *x = (t_tab_div *)pd_new(tab_div_class);
	t_symbol	*src1, *src2, *dst;
	t_float time;

	if((argc >= 3) &&
		IS_A_SYMBOL(argv,0) &&
		IS_A_SYMBOL(argv,1) &&
		IS_A_SYMBOL(argv,2))
	{
		src1 = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		src2 = (t_symbol *)atom_getsymbolarg(1, argc, argv);
		dst = (t_symbol *)atom_getsymbolarg(2, argc, argv);
	}
	else if((argc >= 2) &&
		IS_A_SYMBOL(argv,0) &&
		IS_A_SYMBOL(argv,1))
	{
		src1 = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		dst = src1;
		src2 = (t_symbol *)atom_getsymbolarg(1, argc, argv);
	}
	else
	{
		post("tab_div-ERROR: need 3 symbols arguments:");
		post("  source1_array_name + source2_array_name + destination_array_name");
		return(0);
	}

	x->x_sym_scr1 = src1;
	x->x_sym_scr2 = src2;
	x->x_sym_dst = dst;
	outlet_new(&x->x_obj, &s_bang);
	return(x);
}

void tab_div_setup(void)
{
	tab_div_class = class_new(gensym("tab_div"), (t_newmethod)tab_div_new, (t_method)tab_div_free,
					 sizeof(t_tab_div), 0, A_GIMME, 0);
	class_addbang(tab_div_class, (t_method)tab_div_bang);
	class_addlist(tab_div_class, (t_method)tab_div_list);
	class_addmethod(tab_div_class, (t_method)tab_div_src1, gensym("src1"), A_DEFSYMBOL, 0);
	class_addmethod(tab_div_class, (t_method)tab_div_src2, gensym("src2"), A_DEFSYMBOL, 0);
	class_addmethod(tab_div_class, (t_method)tab_div_dst, gensym("dst"), A_DEFSYMBOL, 0);
	class_sethelpsymbol(tab_div_class, gensym("iemhelp2/tab_div-help"));
}

--- NEW FILE: iem_tab.h ---
/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.

iem_tab written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */

#ifndef __IEMTAB_H__
#define __IEMTAB_H__

typedef struct
{
    float real;
    float imag;
}
TAB_COMPLEX;

int iem_tab_check_arrays(t_symbol *obj_name, t_symbol *array_name, t_float **beg_mem, int *array_size, int max_index);

#endif

--- NEW FILE: tab_lt_scalar.c ---
/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.

iem_tab written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */

#ifdef NT
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif


#include "m_pd.h"
#include "iemlib.h"
#include "iem_tab.h"
#include <math.h>
#include <stdio.h>
#include <string.h>


/* -------------------------- tab_lt_scalar ------------------------------ */

typedef struct _tab_lt_scalar
{
	t_object	x_obj;
	int				x_size_src1;
	int				x_size_dst;
	int				x_offset_src1;
	int				x_offset_dst;
	float			*x_beg_mem_src1;
	float			*x_beg_mem_dst;
	t_symbol	*x_sym_scr1;
	t_symbol	*x_sym_dst;
} t_tab_lt_scalar;

static t_class *tab_lt_scalar_class;

static void tab_lt_scalar_src(t_tab_lt_scalar *x, t_symbol *s)
{
	x->x_sym_scr1 = s;
}

static void tab_lt_scalar_float(t_tab_lt_scalar *x, t_floatarg compare)
{
	int i, n;
	int ok_src1, ok_dst;
	t_float *vec_src1, *vec_dst;

	ok_src1 = iem_tab_check_arrays(gensym("tab_lt_scalar"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, 0);
	ok_dst = iem_tab_check_arrays(gensym("tab_lt_scalar"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, 0);

	if(ok_src1 && ok_dst)
	{
		if(x->x_size_src1 < x->x_size_dst)
			n = x->x_size_src1;
		else
			n = x->x_size_dst;

		vec_src1 = x->x_beg_mem_src1;
		vec_dst = x->x_beg_mem_dst;
		if(n)
		{
			t_garray *a;

			for(i=0; i<n; i++)
      {
        if(vec_src1[i] < compare)
				  vec_dst[i] = 1.0f;
        else
				  vec_dst[i] = 0.0f;
      }
			outlet_bang(x->x_obj.ob_outlet);
			a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
			garray_redraw(a);
		}
	}
}

static void tab_lt_scalar_dst(t_tab_lt_scalar *x, t_symbol *s)
{
	x->x_sym_dst = s;
}

static void tab_lt_scalar_list(t_tab_lt_scalar *x, t_symbol *s, int argc, t_atom *argv)
{
	int beg_src1, beg_dst;
	int i, n;
	int ok_src1, ok_dst;
	t_float *vec_src1, *vec_dst, compare;

	if((argc >= 4) &&
		IS_A_FLOAT(argv,0) &&
		IS_A_FLOAT(argv,1) &&
		IS_A_FLOAT(argv,2) &&
		IS_A_FLOAT(argv,3))
	{
		beg_src1 = (int)atom_getintarg(0, argc, argv);
		beg_dst = (int)atom_getintarg(1, argc, argv);
		n = (int)atom_getintarg(2, argc, argv);
		compare = (t_float)atom_getfloatarg(3, argc, argv);
		if(beg_src1 < 0)
			beg_src1 = 0;
		if(beg_dst < 0)
			beg_dst = 0;
		if(n < 0)
			n = 0;

		ok_src1 = iem_tab_check_arrays(gensym("tab_lt_scalar"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, beg_src1+n);
		ok_dst = iem_tab_check_arrays(gensym("tab_lt_scalar"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, beg_dst+n);

		if(ok_src1 && ok_dst)
		{
			vec_src1 = x->x_beg_mem_src1 + beg_src1;
			vec_dst = x->x_beg_mem_dst + beg_dst;
			if(n)
			{
				t_garray *a;

				for(i=0; i<n; i++)
        {
          if(vec_src1[i] < compare)
				    vec_dst[i] = 1.0f;
          else
				    vec_dst[i] = 0.0f;
        }
				outlet_bang(x->x_obj.ob_outlet);
				a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
				garray_redraw(a);
			}
		}
	}
	else
	{
		post("tab_lt_scalar-ERROR: list need 4 float arguments:");
		post("  source1_offset + destination_offset + number_of_samples_to_compare + compare_scalar");
  }
}

static void tab_lt_scalar_free(t_tab_lt_scalar *x)
{
}

static void *tab_lt_scalar_new(t_symbol *s, int argc, t_atom *argv)
{
	t_tab_lt_scalar *x = (t_tab_lt_scalar *)pd_new(tab_lt_scalar_class);
	t_symbol	*src1, *dst;

	if((argc >= 2) &&
		IS_A_SYMBOL(argv,0) &&
		IS_A_SYMBOL(argv,1))
	{
		src1 = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		dst = (t_symbol *)atom_getsymbolarg(1, argc, argv);
	}
	else if((argc >= 1) &&
		IS_A_SYMBOL(argv,0))
	{
		src1 = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		dst = src1;
	}
	else
	{
		post("tab_lt_scalar-ERROR: need 2 symbol arguments:");
		post("  source_array_name + destination_array_name");
		return(0);
	}

	x->x_sym_scr1 = src1;
	x->x_sym_dst = dst;
	outlet_new(&x->x_obj, &s_bang);
	return(x);
}

void tab_lt_scalar_setup(void)
{
	tab_lt_scalar_class = class_new(gensym("tab_lt_scalar"), (t_newmethod)tab_lt_scalar_new, (t_method)tab_lt_scalar_free,
					 sizeof(t_tab_lt_scalar), 0, A_GIMME, 0);
	class_addfloat(tab_lt_scalar_class, (t_method)tab_lt_scalar_float);
	class_addlist(tab_lt_scalar_class, (t_method)tab_lt_scalar_list);
	class_addmethod(tab_lt_scalar_class, (t_method)tab_lt_scalar_src, gensym("src1"), A_DEFSYMBOL, 0);
	class_addmethod(tab_lt_scalar_class, (t_method)tab_lt_scalar_src, gensym("src"), A_DEFSYMBOL, 0);
	class_addmethod(tab_lt_scalar_class, (t_method)tab_lt_scalar_dst, gensym("dst"), A_DEFSYMBOL, 0);
	class_sethelpsymbol(tab_lt_scalar_class, gensym("iemhelp2/tab_lt_scalar-help"));
}

--- NEW FILE: tab_rfft.c ---
/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.

iem_tab written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */

#ifdef NT
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif


#include "m_pd.h"
#include "iemlib.h"
#include "iem_tab.h"
#include <math.h>
#include <stdio.h>
#include <string.h>


/* -------------------------- tab_rfft ------------------------------ */

typedef struct _tab_rfft
{
	t_object	x_obj;
	int				x_size_src1;
	int				x_size_dst_re;
	int				x_size_dst_im;
	int				x_offset_src1;
	int				x_offset_dst_re;
	int				x_offset_dst_im;
	int				x_fftsize;
	float			*x_beg_mem_src1;
	float			*x_beg_mem_dst_re;
	float			*x_beg_mem_dst_im;
	TAB_COMPLEX		*x_sin_cos;
	t_symbol	*x_sym_src1;
	t_symbol	*x_sym_dst_re;
	t_symbol	*x_sym_dst_im;
} t_tab_rfft;

static t_class *tab_rfft_class;

static void tab_rfft_init(t_tab_rfft *x)
{
	int i, fftsize = x->x_fftsize;
	float f, g;
	TAB_COMPLEX *sincos = x->x_sin_cos;

	g = 2.0f * 3.1415926538f / (float)fftsize;
	for(i=0; i<fftsize; i++)
	{
		f = g * (float)i;
		(*sincos).real = cos(f);
		(*sincos).imag = -sin(f);/*FFT*/
		sincos++;
	}
}

static void tab_rfft_fftsize(t_tab_rfft *x, t_floatarg f)
{
	int i=1, fftsize = (int)f;

	if(fftsize < 8)
		fftsize = 8;

	while(i <= fftsize)
		i *= 2;
	i /= 2;

	if(i != x->x_fftsize)
	{
		x->x_sin_cos = (TAB_COMPLEX *)resizebytes(x->x_sin_cos, x->x_fftsize*sizeof(TAB_COMPLEX), i*sizeof(TAB_COMPLEX));
		x->x_fftsize = i;
	}
	tab_rfft_init(x);
}

static void tab_rfft_src(t_tab_rfft *x, t_symbol *s)
{
	x->x_sym_src1 = s;
}

static void tab_rfft_dst_re(t_tab_rfft *x, t_symbol *s)
{
	x->x_sym_dst_re = s;
}

static void tab_rfft_dst_im(t_tab_rfft *x, t_symbol *s)
{
	x->x_sym_dst_im = s;
}

static void tab_rfft_bang(t_tab_rfft *x)
{
	int i, j, k;
	int ok_src, ok_dst_re, ok_dst_im;
	int w_index, w_inc, i_inc, v_index;
	int fftsize = x->x_fftsize;
	int fs1 = fftsize - 1;
	int fs2 = fftsize / 2;
	TAB_COMPLEX w;
	TAB_COMPLEX *sincos = x->x_sin_cos;
	t_float *vec_src, *vec_dst_re, *vec_dst_im;
	t_float old1_re, old1_im, old2_re, old2_im;

	ok_src = iem_tab_check_arrays(gensym("tab_rfft"), x->x_sym_src1, &x->x_beg_mem_src1, &x->x_size_src1, fftsize);
	ok_dst_re = iem_tab_check_arrays(gensym("tab_rfft"), x->x_sym_dst_re, &x->x_beg_mem_dst_re, &x->x_size_dst_re, fftsize);
	ok_dst_im = iem_tab_check_arrays(gensym("tab_rfft"), x->x_sym_dst_im, &x->x_beg_mem_dst_im, &x->x_size_dst_im, fftsize);
	if(ok_src && ok_dst_re && ok_dst_im)
	{
		t_garray *a;

		vec_src=x->x_beg_mem_src1;
		vec_dst_re=x->x_beg_mem_dst_re;
		vec_dst_im=x->x_beg_mem_dst_im;

		for(k=0; k<fftsize; k++)
		{
			vec_dst_re[k] = vec_src[k];
			vec_dst_im[k] = 0.0f;
		}

		i_inc = fs2;
		w_inc = 1;
		for(i=1; i<fftsize; i<<=1)
		{
			v_index = 0;
			for(j=0; j<i; j++)
			{
				w_index = 0;
				for(k=0; k<i_inc; k++)
				{
					old1_re = vec_dst_re[v_index];
					old1_im = vec_dst_im[v_index];
					old2_re = vec_dst_re[v_index+i_inc];
					old2_im = vec_dst_im[v_index+i_inc];
					w = sincos[w_index];
					vec_dst_re[v_index+i_inc] = (old1_re - old2_re)*w.real - (old1_im - old2_im)*w.imag;
					vec_dst_im[v_index+i_inc] = (old1_im - old2_im)*w.real + (old1_re - old2_re)*w.imag;
					vec_dst_re[v_index] = old1_re + old2_re;
					vec_dst_im[v_index] = old1_im + old2_im;
					w_index += w_inc;
					v_index++;
				}
				v_index += i_inc;
			}
			w_inc <<= 1;
			i_inc >>= 1;
		}

		j = 0;
		for(i=1;i<fs1;i++)
		{
			k = fs2;
			while(k <= j)
			{
				j = j - k;
				k >>= 1;
			}
			j = j + k;
			if(i < j)
			{
				old1_re = vec_dst_re[j];
				old1_im = vec_dst_im[j];
				vec_dst_re[j] = vec_dst_re[i];
				vec_dst_im[j] = vec_dst_im[i];
				vec_dst_re[i] = old1_re;
				vec_dst_im[i] = old1_im;
			}
		}

//		g = 2.0f / (float)fftsize;
/*
		ein fehler tritt auf beim 0.sample, hier sollte nur mal 1.0 multipliziert werden
		wenn gelten soll : Energie im zeitfenster == Energie im Frequenz-dichte-fenster

	g = 1.0f;
		for(i = 0; i < fs2; i++)
		{
			vec_dst_re[i] *= g;
			vec_dst_im[i] *= g;
		}
		*/
		
		vec_dst_im[fs2] = 0.0f;
		for(i = fs2+1; i < fftsize; i++)
		{
			vec_dst_re[i] = 0.0f;
			vec_dst_im[i] = 0.0f;
		}

		outlet_bang(x->x_obj.ob_outlet);
		a = (t_garray *)pd_findbyclass(x->x_sym_dst_re, garray_class);
		garray_redraw(a);
		a = (t_garray *)pd_findbyclass(x->x_sym_dst_im, garray_class);
		garray_redraw(a);
	}
}

static void tab_rfft_list(t_tab_rfft *x, t_symbol *s, int argc, t_atom *argv)
{
	int beg_src, beg_dst_re, beg_dst_im;
	int i, j, k;
	int ok_src, ok_dst_re, ok_dst_im;
	int w_index, w_inc, i_inc, v_index;
	int fftsize = x->x_fftsize;
	int fs1 = fftsize - 1;
	int fs2 = fftsize / 2;
	TAB_COMPLEX w;
	TAB_COMPLEX *sincos = x->x_sin_cos;
	t_float *vec_src, *vec_dst_re, *vec_dst_im;
	t_float old1_re, old1_im, old2_re, old2_im;

	if((argc >= 3) &&
		IS_A_FLOAT(argv,0) &&
		IS_A_FLOAT(argv,1) &&
		IS_A_FLOAT(argv,2))
	{
		beg_src = (int)atom_getintarg(0, argc, argv);
		beg_dst_re = (int)atom_getintarg(1, argc, argv);
		beg_dst_im = (int)atom_getintarg(2, argc, argv);
		if(beg_src < 0)
			beg_src = 0;
		if(beg_dst_re < 0)
			beg_dst_re = 0;
		if(beg_dst_im < 0)
			beg_dst_im = 0;

		ok_src = iem_tab_check_arrays(gensym("tab_rfft"), x->x_sym_src1, &x->x_beg_mem_src1, &x->x_size_src1, beg_src+fftsize);
		ok_dst_re = iem_tab_check_arrays(gensym("tab_rfft"), x->x_sym_dst_re, &x->x_beg_mem_dst_re, &x->x_size_dst_re, beg_dst_re+fftsize);
		ok_dst_im = iem_tab_check_arrays(gensym("tab_rfft"), x->x_sym_dst_im, &x->x_beg_mem_dst_im, &x->x_size_dst_im, beg_dst_im+fftsize);

		if(ok_src && ok_dst_re && ok_dst_im)
		{
			t_garray *a;

			vec_src=x->x_beg_mem_src1 + beg_src;
			vec_dst_re=x->x_beg_mem_dst_re + beg_dst_re;
			vec_dst_im=x->x_beg_mem_dst_im + beg_dst_im;

			for(k=0; k<fftsize; k++)
			{
				vec_dst_re[k] = vec_src[k];
				vec_dst_im[k] = 0.0f;
			}

			i_inc = fs2;
			w_inc = 1;
			for(i=1; i<fftsize; i<<=1)
			{
				v_index = 0;
				for(j=0; j<i; j++)
				{
					w_index = 0;
					for(k=0; k<i_inc; k++)
					{
						old1_re = vec_dst_re[v_index];
						old1_im = vec_dst_im[v_index];
						old2_re = vec_dst_re[v_index+i_inc];
						old2_im = vec_dst_im[v_index+i_inc];
						w = sincos[w_index];
						vec_dst_re[v_index+i_inc] = (old1_re - old2_re)*w.real - (old1_im - old2_im)*w.imag;
						vec_dst_im[v_index+i_inc] = (old1_im - old2_im)*w.real + (old1_re - old2_re)*w.imag;
						vec_dst_re[v_index] = old1_re + old2_re;
						vec_dst_im[v_index] = old1_im + old2_im;
						w_index += w_inc;
						v_index++;
					}
					v_index += i_inc;
				}
				w_inc <<= 1;
				i_inc >>= 1;
			}

			j = 0;
			for(i=1;i<fs1;i++)
			{
				k = fs2;
				while(k <= j)
				{
					j = j - k;
					k >>= 1;
				}
				j = j + k;
				if(i < j)
				{
					old1_re = vec_dst_re[j];
					old1_im = vec_dst_im[j];
					vec_dst_re[j] = vec_dst_re[i];
					vec_dst_im[j] = vec_dst_im[i];
					vec_dst_re[i] = old1_re;
					vec_dst_im[i] = old1_im;
				}
			}

//		g = 2.0f / (float)fftsize;
/*
		ein fehler tritt auf beim 0.sample, hier sollte nur mal 1.0 multipliziert werden
		wenn gelten soll : Energie im zeitfenster == Energie im Frequenz-dichte-fenster
		
			g = 1.0f;
			for(i = 0; i < fs2; i++)
			{
				vec_dst_re[i] *= g;
				vec_dst_im[i] *= g;
			}
			*/
		
			vec_dst_im[fs2] = 0.0f;
			for(i = fs2+1; i < fftsize; i++)
			{
				vec_dst_re[i] = 0.0f;
				vec_dst_im[i] = 0.0f;
			}

			outlet_bang(x->x_obj.ob_outlet);
			a = (t_garray *)pd_findbyclass(x->x_sym_dst_re, garray_class);
			garray_redraw(a);
			a = (t_garray *)pd_findbyclass(x->x_sym_dst_im, garray_class);
			garray_redraw(a);
		}
	}
	else
	{
		post("tab_rfft-ERROR: list need 3 float arguments:");
		post("  source_offset + destination_real_offset + destination_imag_offset");
	}
}

static void tab_rfft_free(t_tab_rfft *x)
{
	freebytes(x->x_sin_cos, x->x_fftsize * sizeof(TAB_COMPLEX));
}

static void *tab_rfft_new(t_symbol *s, int argc, t_atom *argv)
{
	t_tab_rfft *x = (t_tab_rfft *)pd_new(tab_rfft_class);
	t_symbol	*src, *dst_re, *dst_im;
	int fftsize, i=1;

	if((argc >= 4) &&
		IS_A_SYMBOL(argv,0) &&
		IS_A_SYMBOL(argv,1) &&
		IS_A_SYMBOL(argv,2) &&
		IS_A_FLOAT(argv,3))
	{
		src = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		dst_re = (t_symbol *)atom_getsymbolarg(1, argc, argv);
		dst_im = (t_symbol *)atom_getsymbolarg(2, argc, argv);
		fftsize = (int)atom_getintarg(3, argc, argv);
	}
	else
	{
		post("tab_rfft-ERROR: need 3 symbols + 1 float arguments:");
		post("  source_array_name + destination_real_array_name + destination_imag_array_name + FFT-size");
		return(0);
	}

	if(fftsize < 8)
		fftsize = 8;

	while(i <= fftsize)
		i *= 2;
	i /= 2;
	fftsize = i;

	x->x_fftsize = fftsize;
	x->x_sym_src1 = src;
	x->x_sym_dst_re = dst_re;
	x->x_sym_dst_im = dst_im;
	x->x_sin_cos = (TAB_COMPLEX *)getbytes(x->x_fftsize * sizeof(TAB_COMPLEX));
	tab_rfft_init(x);
	outlet_new(&x->x_obj, &s_bang);
	return(x);
}

void tab_rfft_setup(void)
{
	tab_rfft_class = class_new(gensym("tab_rfft"), (t_newmethod)tab_rfft_new, (t_method)tab_rfft_free,
					 sizeof(t_tab_rfft), 0, A_GIMME, 0);
	class_addbang(tab_rfft_class, (t_method)tab_rfft_bang);
	class_addlist(tab_rfft_class, (t_method)tab_rfft_list);
	class_addmethod(tab_rfft_class, (t_method)tab_rfft_fftsize, gensym("fftsize"), A_DEFFLOAT, 0);
	class_addmethod(tab_rfft_class, (t_method)tab_rfft_src, gensym("src"), A_DEFSYMBOL, 0);
	class_addmethod(tab_rfft_class, (t_method)tab_rfft_src, gensym("src1"), A_DEFSYMBOL, 0);
	class_addmethod(tab_rfft_class, (t_method)tab_rfft_dst_re, gensym("dst_re"), A_DEFSYMBOL, 0);
	class_addmethod(tab_rfft_class, (t_method)tab_rfft_dst_im, gensym("dst_im"), A_DEFSYMBOL, 0);
	class_addmethod(tab_rfft_class, (t_method)tab_rfft_dst_re, gensym("dst1"), A_DEFSYMBOL, 0);
	class_addmethod(tab_rfft_class, (t_method)tab_rfft_dst_im, gensym("dst2"), A_DEFSYMBOL, 0);
	class_sethelpsymbol(tab_rfft_class, gensym("iemhelp2/tab_rfft-help"));
}

--- NEW FILE: tab_mul_scalar.c ---
/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.

iem_tab written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */

#ifdef NT
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif


#include "m_pd.h"
#include "iemlib.h"
#include "iem_tab.h"
#include <math.h>
#include <stdio.h>
#include <string.h>


/* -------------------------- tab_mul_scalar ------------------------------ */

typedef struct _tab_mul_scalar
{
	t_object	x_obj;
	int				x_size_src1;
	int				x_size_dst;
	int				x_offset_src1;
	int				x_offset_dst;
	float			*x_beg_mem_src1;
	float			*x_beg_mem_dst;
	t_symbol	*x_sym_scr1;
	t_symbol	*x_sym_dst;
} t_tab_mul_scalar;

static t_class *tab_mul_scalar_class;

static void tab_mul_scalar_src(t_tab_mul_scalar *x, t_symbol *s)
{
	x->x_sym_scr1 = s;
}

static void tab_mul_scalar_float(t_tab_mul_scalar *x, t_floatarg m)
{
	int i, n;
	int ok_src1, ok_dst;
	t_float *vec_src1, *vec_dst;

	ok_src1 = iem_tab_check_arrays(gensym("tab_mul_scalar"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, 0);
	ok_dst = iem_tab_check_arrays(gensym("tab_mul_scalar"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, 0);

	if(ok_src1 && ok_dst)
	{
		if(x->x_size_src1 < x->x_size_dst)
			n = x->x_size_src1;
		else
			n = x->x_size_dst;

		vec_src1 = x->x_beg_mem_src1;
		vec_dst = x->x_beg_mem_dst;
		if(n)
		{
			t_garray *a;

			for(i=0; i<n; i++)
				vec_dst[i] = vec_src1[i]*m;
			outlet_bang(x->x_obj.ob_outlet);
			a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
			garray_redraw(a);
		}
	}
}

static void tab_mul_scalar_dst(t_tab_mul_scalar *x, t_symbol *s)
{
	x->x_sym_dst = s;
}

static void tab_mul_scalar_list(t_tab_mul_scalar *x, t_symbol *s, int argc, t_atom *argv)
{
	int beg_src1, beg_dst;
	int i, n;
	int ok_src1, ok_dst;
	t_float *vec_src1, *vec_dst, m;

	if((argc >= 4) &&
		IS_A_FLOAT(argv,0) &&
		IS_A_FLOAT(argv,1) &&
		IS_A_FLOAT(argv,2) &&
		IS_A_FLOAT(argv,3))
	{
		beg_src1 = (int)atom_getintarg(0, argc, argv);
		beg_dst = (int)atom_getintarg(1, argc, argv);
		n = (int)atom_getintarg(2, argc, argv);
		m = (t_float)atom_getfloatarg(3, argc, argv);
		if(beg_src1 < 0)
			beg_src1 = 0;
		if(beg_dst < 0)
			beg_dst = 0;
		if(n < 0)
			n = 0;

		ok_src1 = iem_tab_check_arrays(gensym("tab_mul_scalar"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, beg_src1+n);
		ok_dst = iem_tab_check_arrays(gensym("tab_mul_scalar"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, beg_dst+n);

		if(ok_src1 && ok_dst)
		{
			vec_src1 = x->x_beg_mem_src1 + beg_src1;
			vec_dst = x->x_beg_mem_dst + beg_dst;
			if(n)
			{
				t_garray *a;

				for(i=0; i<n; i++)
					vec_dst[i] = vec_src1[i]*m;
				outlet_bang(x->x_obj.ob_outlet);
				a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
				garray_redraw(a);
			}
		}
	}
	else
	{
		post("tab_mul_scalar-ERROR: list need 4 float arguments:");
		post("  source1_offset + destination_offset + number_of_samples_to_mul + mul_scalar");
	}
}

static void tab_mul_scalar_free(t_tab_mul_scalar *x)
{
}

static void *tab_mul_scalar_new(t_symbol *s, int argc, t_atom *argv)
{
	t_tab_mul_scalar *x = (t_tab_mul_scalar *)pd_new(tab_mul_scalar_class);
	t_symbol	*src1, *dst;

	if((argc >= 2) &&
		IS_A_SYMBOL(argv,0) &&
		IS_A_SYMBOL(argv,1))
	{
		src1 = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		dst = (t_symbol *)atom_getsymbolarg(1, argc, argv);
	}
	else if((argc >= 1) &&
		IS_A_SYMBOL(argv,0))
	{
		src1 = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		dst = src1;
	}
	else
	{
		post("tab_mul_scalar-ERROR: need 2 symbol arguments:");
		post("  source_array_name + destination_array_name");
		return(0);
	}

	x->x_sym_scr1 = src1;
	x->x_sym_dst = dst;
	outlet_new(&x->x_obj, &s_bang);
	return(x);
}

void tab_mul_scalar_setup(void)
{
	tab_mul_scalar_class = class_new(gensym("tab_mul_scalar"), (t_newmethod)tab_mul_scalar_new, (t_method)tab_mul_scalar_free,
					 sizeof(t_tab_mul_scalar), 0, A_GIMME, 0);
	class_addfloat(tab_mul_scalar_class, (t_method)tab_mul_scalar_float);
	class_addlist(tab_mul_scalar_class, (t_method)tab_mul_scalar_list);
	class_addmethod(tab_mul_scalar_class, (t_method)tab_mul_scalar_src, gensym("src1"), A_DEFSYMBOL, 0);
	class_addmethod(tab_mul_scalar_class, (t_method)tab_mul_scalar_src, gensym("src"), A_DEFSYMBOL, 0);
	class_addmethod(tab_mul_scalar_class, (t_method)tab_mul_scalar_dst, gensym("dst"), A_DEFSYMBOL, 0);
	class_sethelpsymbol(tab_mul_scalar_class, gensym("iemhelp2/tab_mul_scalar-help"));
}

--- NEW FILE: tab_ge.c ---
/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.

iem_tab written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */

#ifdef NT
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif


#include "m_pd.h"
#include "iemlib.h"
#include "iem_tab.h"
#include <math.h>
#include <stdio.h>
#include <string.h>


/* -------------------------- tab_ge ------------------------------ */

typedef struct _tab_ge
{
	t_object	x_obj;
	int				x_size_src1;
	int				x_size_src2;
	int				x_size_dst;
	int				x_offset_src1;
	int				x_offset_src2;
	int				x_offset_dst;
	float			*x_beg_mem_src1;
	float			*x_beg_mem_src2;
	float			*x_beg_mem_dst;
	t_symbol	*x_sym_scr1;
	t_symbol	*x_sym_scr2;
	t_symbol	*x_sym_dst;
} t_tab_ge;

static t_class *tab_ge_class;

static void tab_ge_src1(t_tab_ge *x, t_symbol *s)
{
	x->x_sym_scr1 = s;
}

static void tab_ge_src2(t_tab_ge *x, t_symbol *s)
{
	x->x_sym_scr2 = s;
}

static void tab_ge_dst(t_tab_ge *x, t_symbol *s)
{
	x->x_sym_dst = s;
}

static void tab_ge_bang(t_tab_ge *x)
{
	int i, n;
	int ok_src1, ok_src2, ok_dst;
	t_float *vec_src1, *vec_src2, *vec_dst;

	ok_src1 = iem_tab_check_arrays(gensym("tab_ge"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, 0);
	ok_src2 = iem_tab_check_arrays(gensym("tab_ge"), x->x_sym_scr2, &x->x_beg_mem_src2, &x->x_size_src2, 0);
	ok_dst = iem_tab_check_arrays(gensym("tab_ge"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, 0);

	if(ok_src1 && ok_src2 && ok_dst)
	{
		if(x->x_size_src1 < x->x_size_dst)
			n = x->x_size_src1;
		else
			n = x->x_size_dst;
		if(x->x_size_src2 < n)
			n = x->x_size_src2;

		vec_src1 = x->x_beg_mem_src1;
		vec_src2 = x->x_beg_mem_src2;
		vec_dst = x->x_beg_mem_dst;
		if(n)
		{
			t_garray *a;

			for(i=0; i<n; i++)
      {
        if(vec_src1[i] >= vec_src2[i])
				  vec_dst[i] = 1.0f;
        else
				  vec_dst[i] = 0.0f;
      }
			outlet_bang(x->x_obj.ob_outlet);
			a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
			garray_redraw(a);
		}
	}
}

static void tab_ge_list(t_tab_ge *x, t_symbol *s, int argc, t_atom *argv)
{
	int beg_src1, beg_src2, beg_dst;
	int i, n;
	int ok_src1, ok_src2, ok_dst;
	t_float *vec_src1, *vec_src2, *vec_dst;

	if((argc >= 4) &&
		IS_A_FLOAT(argv,0) &&
		IS_A_FLOAT(argv,1) &&
		IS_A_FLOAT(argv,2) &&
		IS_A_FLOAT(argv,3))
	{
		beg_src1 = (int)atom_getintarg(0, argc, argv);
		beg_src2 = (int)atom_getintarg(1, argc, argv);
		beg_dst = (int)atom_getintarg(2, argc, argv);
		n = (int)atom_getintarg(3, argc, argv);
		if(beg_src1 < 0)
			beg_src1 = 0;
		if(beg_src2 < 0)
			beg_src2 = 0;
		if(beg_dst < 0)
			beg_dst = 0;
		if(n < 0)
			n = 0;

		ok_src1 = iem_tab_check_arrays(gensym("tab_ge"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, beg_src1+n);
		ok_src2 = iem_tab_check_arrays(gensym("tab_ge"), x->x_sym_scr2, &x->x_beg_mem_src2, &x->x_size_src2, beg_src2+n);
		ok_dst = iem_tab_check_arrays(gensym("tab_ge"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, beg_dst+n);

		if(ok_src1 && ok_src2 && ok_dst)
		{
			vec_src1 = x->x_beg_mem_src1 + beg_src1;
			vec_src2 = x->x_beg_mem_src2 + beg_src2;
			vec_dst = x->x_beg_mem_dst + beg_dst;
			if(n)
			{
				t_garray *a;

				for(i=0; i<n; i++)
        {
          if(vec_src1[i] >= vec_src2[i])
				    vec_dst[i] = 1.0f;
          else
				    vec_dst[i] = 0.0f;
        }
				outlet_bang(x->x_obj.ob_outlet);
				a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
				garray_redraw(a);
			}
		}
	}
	else
	{
		post("tab_ge-ERROR: list need 4 float arguments:");
		post("  source1_offset + source2_offset + destination_offset + number_of_samples_to_compare");
	}
}

static void tab_ge_free(t_tab_ge *x)
{
}

static void *tab_ge_new(t_symbol *s, int argc, t_atom *argv)
{
	t_tab_ge *x = (t_tab_ge *)pd_new(tab_ge_class);
	t_symbol	*src1, *src2, *dst;
	t_float time;

	if((argc >= 3) &&
		IS_A_SYMBOL(argv,0) &&
		IS_A_SYMBOL(argv,1) &&
		IS_A_SYMBOL(argv,2))
	{
		src1 = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		src2 = (t_symbol *)atom_getsymbolarg(1, argc, argv);
		dst = (t_symbol *)atom_getsymbolarg(2, argc, argv);
	}
	else if((argc >= 2) &&
		IS_A_SYMBOL(argv,0) &&
		IS_A_SYMBOL(argv,1))
	{
		src1 = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		dst = src1;
		src2 = (t_symbol *)atom_getsymbolarg(1, argc, argv);
	}
	else
	{
		post("tab_ge-ERROR: need 3 symbols arguments:");
		post("  source1_array_name + source2_array_name + destination_array_name");
		return(0);
	}

	x->x_sym_scr1 = src1;
	x->x_sym_scr2 = src2;
	x->x_sym_dst = dst;
	outlet_new(&x->x_obj, &s_bang);
	return(x);
}

void tab_ge_setup(void)
{
	tab_ge_class = class_new(gensym("tab_ge"), (t_newmethod)tab_ge_new, (t_method)tab_ge_free,
					 sizeof(t_tab_ge), 0, A_GIMME, 0);
	class_addbang(tab_ge_class, (t_method)tab_ge_bang);
	class_addlist(tab_ge_class, (t_method)tab_ge_list);
	class_addmethod(tab_ge_class, (t_method)tab_ge_src1, gensym("src1"), A_DEFSYMBOL, 0);
	class_addmethod(tab_ge_class, (t_method)tab_ge_src2, gensym("src2"), A_DEFSYMBOL, 0);
	class_addmethod(tab_ge_class, (t_method)tab_ge_dst, gensym("dst"), A_DEFSYMBOL, 0);
	class_sethelpsymbol(tab_ge_class, gensym("iemhelp2/tab_ge-help"));
}

--- NEW FILE: tab_eq.c ---
/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.

iem_tab written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */

#ifdef NT
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif


#include "m_pd.h"
#include "iemlib.h"
#include "iem_tab.h"
#include <math.h>
#include <stdio.h>
#include <string.h>


/* -------------------------- tab_eq ------------------------------ */

typedef struct _tab_eq
{
	t_object	x_obj;
	int				x_size_src1;
	int				x_size_src2;
	int				x_size_dst;
	int				x_offset_src1;
	int				x_offset_src2;
	int				x_offset_dst;
	float			*x_beg_mem_src1;
	float			*x_beg_mem_src2;
	float			*x_beg_mem_dst;
	t_symbol	*x_sym_scr1;
	t_symbol	*x_sym_scr2;
	t_symbol	*x_sym_dst;
} t_tab_eq;

static t_class *tab_eq_class;

static void tab_eq_src1(t_tab_eq *x, t_symbol *s)
{
	x->x_sym_scr1 = s;
}

static void tab_eq_src2(t_tab_eq *x, t_symbol *s)
{
	x->x_sym_scr2 = s;
}

static void tab_eq_dst(t_tab_eq *x, t_symbol *s)
{
	x->x_sym_dst = s;
}

static void tab_eq_bang(t_tab_eq *x)
{
	int i, n;
	int ok_src1, ok_src2, ok_dst;
	t_float *vec_src1, *vec_src2, *vec_dst;

	ok_src1 = iem_tab_check_arrays(gensym("tab_eq"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, 0);
	ok_src2 = iem_tab_check_arrays(gensym("tab_eq"), x->x_sym_scr2, &x->x_beg_mem_src2, &x->x_size_src2, 0);
	ok_dst = iem_tab_check_arrays(gensym("tab_eq"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, 0);

	if(ok_src1 && ok_src2 && ok_dst)
	{
		if(x->x_size_src1 < x->x_size_dst)
			n = x->x_size_src1;
		else
			n = x->x_size_dst;
		if(x->x_size_src2 < n)
			n = x->x_size_src2;

		vec_src1 = x->x_beg_mem_src1;
		vec_src2 = x->x_beg_mem_src2;
		vec_dst = x->x_beg_mem_dst;
		if(n)
		{
			t_garray *a;

			for(i=0; i<n; i++)
      {
        if(vec_src1[i] == vec_src2[i])
				  vec_dst[i] = 1.0f;
        else
				  vec_dst[i] = 0.0f;
      }
			outlet_bang(x->x_obj.ob_outlet);
			a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
			garray_redraw(a);
		}
	}
}

static void tab_eq_list(t_tab_eq *x, t_symbol *s, int argc, t_atom *argv)
{
	int beg_src1, beg_src2, beg_dst;
	int i, n;
	int ok_src1, ok_src2, ok_dst;
	t_float *vec_src1, *vec_src2, *vec_dst;

	if((argc >= 4) &&
		IS_A_FLOAT(argv,0) &&
		IS_A_FLOAT(argv,1) &&
		IS_A_FLOAT(argv,2) &&
		IS_A_FLOAT(argv,3))
	{
		beg_src1 = (int)atom_getintarg(0, argc, argv);
		beg_src2 = (int)atom_getintarg(1, argc, argv);
		beg_dst = (int)atom_getintarg(2, argc, argv);
		n = (int)atom_getintarg(3, argc, argv);
		if(beg_src1 < 0)
			beg_src1 = 0;
		if(beg_src2 < 0)
			beg_src2 = 0;
		if(beg_dst < 0)
			beg_dst = 0;
		if(n < 0)
			n = 0;

		ok_src1 = iem_tab_check_arrays(gensym("tab_eq"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, beg_src1+n);
		ok_src2 = iem_tab_check_arrays(gensym("tab_eq"), x->x_sym_scr2, &x->x_beg_mem_src2, &x->x_size_src2, beg_src2+n);
		ok_dst = iem_tab_check_arrays(gensym("tab_eq"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, beg_dst+n);

		if(ok_src1 && ok_src2 && ok_dst)
		{
			vec_src1 = x->x_beg_mem_src1 + beg_src1;
			vec_src2 = x->x_beg_mem_src2 + beg_src2;
			vec_dst = x->x_beg_mem_dst + beg_dst;
			if(n)
			{
				t_garray *a;

				for(i=0; i<n; i++)
        {
          if(vec_src1[i] == vec_src2[i])
				    vec_dst[i] = 1.0f;
          else
				    vec_dst[i] = 0.0f;
        }
				outlet_bang(x->x_obj.ob_outlet);
				a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
				garray_redraw(a);
			}
		}
	}
	else
	{
		post("tab_eq-ERROR: list need 4 float arguments:");
		post("  source1_offset + source2_offset + destination_offset + number_of_samples_to_compare");
	}
}

static void tab_eq_free(t_tab_eq *x)
{
}

static void *tab_eq_new(t_symbol *s, int argc, t_atom *argv)
{
	t_tab_eq *x = (t_tab_eq *)pd_new(tab_eq_class);
	t_symbol	*src1, *src2, *dst;
	t_float time;

	if((argc >= 3) &&
		IS_A_SYMBOL(argv,0) &&
		IS_A_SYMBOL(argv,1) &&
		IS_A_SYMBOL(argv,2))
	{
		src1 = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		src2 = (t_symbol *)atom_getsymbolarg(1, argc, argv);
		dst = (t_symbol *)atom_getsymbolarg(2, argc, argv);
	}
	else if((argc >= 2) &&
		IS_A_SYMBOL(argv,0) &&
		IS_A_SYMBOL(argv,1))
	{
		src1 = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		dst = src1;
		src2 = (t_symbol *)atom_getsymbolarg(1, argc, argv);
	}
	else
	{
		post("tab_eq-ERROR: need 3 symbols arguments:");
		post("  source1_array_name + source2_array_name + destination_array_name");
		return(0);
	}

	x->x_sym_scr1 = src1;
	x->x_sym_scr2 = src2;
	x->x_sym_dst = dst;
	outlet_new(&x->x_obj, &s_bang);
	return(x);
}

void tab_eq_setup(void)
{
	tab_eq_class = class_new(gensym("tab_eq"), (t_newmethod)tab_eq_new, (t_method)tab_eq_free,
					 sizeof(t_tab_eq), 0, A_GIMME, 0);
	class_addbang(tab_eq_class, (t_method)tab_eq_bang);
	class_addlist(tab_eq_class, (t_method)tab_eq_list);
	class_addmethod(tab_eq_class, (t_method)tab_eq_src1, gensym("src1"), A_DEFSYMBOL, 0);
	class_addmethod(tab_eq_class, (t_method)tab_eq_src2, gensym("src2"), A_DEFSYMBOL, 0);
	class_addmethod(tab_eq_class, (t_method)tab_eq_dst, gensym("dst"), A_DEFSYMBOL, 0);
	class_sethelpsymbol(tab_eq_class, gensym("iemhelp2/tab_eq-help"));
}

--- NEW FILE: tab_ifft.c ---
/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.

iem_tab written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */

#ifdef NT
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif


#include "m_pd.h"
#include "iemlib.h"
#include "iem_tab.h"
#include <math.h>
#include <stdio.h>
#include <string.h>


/* -------------------------- tab_ifft ------------------------------ */

typedef struct _tab_ifft
{
	t_object	x_obj;
	int				x_size_src_re;
	int				x_size_src_im;
	int				x_size_dst_re;
	int				x_size_dst_im;
	int				x_offset_src_re;
	int				x_offset_src_im;
	int				x_offset_dst_re;
	int				x_offset_dst_im;
	int				x_fftsize;
	float			*x_beg_mem_src_re;
	float			*x_beg_mem_src_im;
	float			*x_beg_mem_dst_re;
	float			*x_beg_mem_dst_im;
	TAB_COMPLEX		*x_sin_cos;
	t_symbol	*x_sym_src_re;
	t_symbol	*x_sym_src_im;
	t_symbol	*x_sym_dst_re;
	t_symbol	*x_sym_dst_im;
} t_tab_ifft;

static t_class *tab_ifft_class;

static void tab_ifft_init(t_tab_ifft *x)
{
	int i, fftsize = x->x_fftsize;
	float f, g;
	TAB_COMPLEX *sincos = x->x_sin_cos;

	g = 2.0f * 3.1415926538f / (float)fftsize;
	for(i=0; i<fftsize; i++)
	{
		f = g * (float)i;
		(*sincos).real = cos(f);
		(*sincos).imag = sin(f);/*IFFT*/
		sincos++;
	}
}

static void tab_ifft_ifftsize(t_tab_ifft *x, t_floatarg f)
{
	int i=1, fftsize = (int)f;

	if(fftsize < 8)
		fftsize = 8;

	while(i <= fftsize)
		i *= 2;
	i /= 2;

	if(i != x->x_fftsize)
	{
		x->x_sin_cos = (TAB_COMPLEX *)resizebytes(x->x_sin_cos, x->x_fftsize*sizeof(TAB_COMPLEX), i*sizeof(TAB_COMPLEX));
		x->x_fftsize = i;
	}
	tab_ifft_init(x);
}

static void tab_ifft_dst_re(t_tab_ifft *x, t_symbol *s)
{
	x->x_sym_dst_re = s;
}

static void tab_ifft_dst_im(t_tab_ifft *x, t_symbol *s)
{
	x->x_sym_dst_im = s;
}

static void tab_ifft_src_re(t_tab_ifft *x, t_symbol *s)
{
	x->x_sym_src_re = s;
}

static void tab_ifft_src_im(t_tab_ifft *x, t_symbol *s)
{
	x->x_sym_src_im = s;
}

static void tab_ifft_bang(t_tab_ifft *x)
{
	int i, j, k;
	int ok_src_re, ok_src_im, ok_dst_re, ok_dst_im;
	int w_index, w_inc, i_inc, v_index;
	int fftsize = x->x_fftsize;
	int fs1 = fftsize - 1;
	int fs2 = fftsize / 2;
	TAB_COMPLEX w;
	TAB_COMPLEX *sincos = x->x_sin_cos;
	t_float *vec_src_re, *vec_src_im, *vec_dst_re, *vec_dst_im;
	t_float old1_re, old1_im, old2_re, old2_im, g;

	ok_src_re = iem_tab_check_arrays(gensym("tab_ifft"), x->x_sym_src_re, &x->x_beg_mem_src_re, &x->x_size_src_re, fftsize);
	ok_src_im = iem_tab_check_arrays(gensym("tab_ifft"), x->x_sym_src_im, &x->x_beg_mem_src_im, &x->x_size_src_im, fftsize);
	ok_dst_re = iem_tab_check_arrays(gensym("tab_ifft"), x->x_sym_dst_re, &x->x_beg_mem_dst_re, &x->x_size_dst_re, fftsize);
	ok_dst_im = iem_tab_check_arrays(gensym("tab_ifft"), x->x_sym_dst_im, &x->x_beg_mem_dst_im, &x->x_size_dst_im, fftsize);
	
	if(ok_src_re && ok_src_im && ok_dst_re && ok_dst_im)
	{
		t_garray *a;

		vec_src_re=x->x_beg_mem_src_re;
		vec_src_im=x->x_beg_mem_src_im;
		vec_dst_re=x->x_beg_mem_dst_re;
		vec_dst_im=x->x_beg_mem_dst_im;

		for(j=0; j<fftsize; j++)
		{
			vec_dst_re[j] = vec_src_re[j];
			vec_dst_im[j] = vec_src_im[j];
		}

		i_inc = fs2;
		w_inc = 1;
		for(i=1; i<fftsize; i<<=1)
		{
			v_index = 0;
			for(j=0; j<i; j++)
			{
				w_index = 0;
				for(k=0; k<i_inc; k++)
				{
					old1_re = vec_dst_re[v_index];
					old1_im = vec_dst_im[v_index];
					old2_re = vec_dst_re[v_index+i_inc];
					old2_im = vec_dst_im[v_index+i_inc];
					w = sincos[w_index];
					vec_dst_re[v_index+i_inc] = (old1_re - old2_re)*w.real - (old1_im - old2_im)*w.imag;
					vec_dst_im[v_index+i_inc] = (old1_im - old2_im)*w.real + (old1_re - old2_re)*w.imag;
					vec_dst_re[v_index] = old1_re + old2_re;
					vec_dst_im[v_index] = old1_im + old2_im;
					w_index += w_inc;
					v_index++;
				}
				v_index += i_inc;
			}
			w_inc <<= 1;
			i_inc >>= 1;
		}

		j = 0;
		for(i=1;i<fs1;i++)
		{
			k = fs2;
			while(k <= j)
			{
				j = j - k;
				k >>= 1;
			}
			j = j + k;
			if(i < j)
			{
				old1_re = vec_dst_re[j];
				old1_im = vec_dst_im[j];
				vec_dst_re[j] = vec_dst_re[i];
				vec_dst_im[j] = vec_dst_im[i];
				vec_dst_re[i] = old1_re;
				vec_dst_im[i] = old1_im;
			}
		}

//		g = 2.0f / (float)fftsize;
/*
		ein fehler tritt auf beim 0.sample, hier sollte nur mal 1.0 multipliziert werden
		wenn gelten soll : Energie im zeitfenster == Energie im Frequenz-dichte-fenster

	g = 1.0f;
		for(i = 0; i < fs2; i++)
		{
			vec_dst_re[i] *= g;
			vec_dst_im[i] *= g;
		}
		*/
		
		g = 1.0f / (float)fftsize;
		for(i = 0; i < fftsize; i++)
		{
			vec_dst_re[i] *= g;
			vec_dst_im[i] *= g;
		}

		outlet_bang(x->x_obj.ob_outlet);
		a = (t_garray *)pd_findbyclass(x->x_sym_dst_re, garray_class);
		garray_redraw(a);
		a = (t_garray *)pd_findbyclass(x->x_sym_dst_im, garray_class);
		garray_redraw(a);
	}
}

static void tab_ifft_list(t_tab_ifft *x, t_symbol *s, int argc, t_atom *argv)
{
	int beg_src_re, beg_src_im, beg_dst_re, beg_dst_im;
	int i, j, k;
	int ok_src_re, ok_src_im, ok_dst_re, ok_dst_im;
	int w_index, w_inc, i_inc, v_index;
	int fftsize = x->x_fftsize;
	int fs1 = fftsize - 1;
	int fs2 = fftsize / 2;
	TAB_COMPLEX w;
	TAB_COMPLEX *sincos = x->x_sin_cos;
	t_float *vec_src_re, *vec_src_im, *vec_dst_re, *vec_dst_im;
	t_float old1_re, old1_im, old2_re, old2_im, g;

	if((argc >= 4) &&
		IS_A_FLOAT(argv,0) &&
		IS_A_FLOAT(argv,1) &&
		IS_A_FLOAT(argv,2) &&
		IS_A_FLOAT(argv,3))
	{
		beg_src_re = (int)atom_getintarg(0, argc, argv);
		beg_src_im = (int)atom_getintarg(1, argc, argv);
		beg_dst_re = (int)atom_getintarg(2, argc, argv);
		beg_dst_im = (int)atom_getintarg(3, argc, argv);
		if(beg_src_re < 0)
			beg_src_re = 0;
		if(beg_src_im < 0)
			beg_src_im = 0;
		if(beg_dst_re < 0)
			beg_dst_re = 0;
		if(beg_dst_im < 0)
			beg_dst_im = 0;

		ok_src_re = iem_tab_check_arrays(gensym("tab_ifft"), x->x_sym_src_re, &x->x_beg_mem_src_re, &x->x_size_src_re, fftsize);
		ok_src_im = iem_tab_check_arrays(gensym("tab_ifft"), x->x_sym_src_im, &x->x_beg_mem_src_im, &x->x_size_src_im, fftsize);
		ok_dst_re = iem_tab_check_arrays(gensym("tab_ifft"), x->x_sym_dst_re, &x->x_beg_mem_dst_re, &x->x_size_dst_re, fftsize);
		ok_dst_im = iem_tab_check_arrays(gensym("tab_ifft"), x->x_sym_dst_im, &x->x_beg_mem_dst_im, &x->x_size_dst_im, fftsize);
	
		if(ok_src_re && ok_src_im && ok_dst_re && ok_dst_im)
		{
			t_garray *a;

			vec_src_re=x->x_beg_mem_src_re + beg_src_re;
			vec_src_im=x->x_beg_mem_src_im + beg_src_im;
			vec_dst_re=x->x_beg_mem_dst_re + beg_dst_re;
			vec_dst_im=x->x_beg_mem_dst_im + beg_dst_im;

			for(j=0; j<fftsize; j++)
			{
				vec_dst_re[j] = vec_src_re[j];
				vec_dst_im[j] = vec_src_im[j];
			}

			i_inc = fs2;
			w_inc = 1;
			for(i=1; i<fftsize; i<<=1)
			{
				v_index = 0;
				for(j=0; j<i; j++)
				{
					w_index = 0;
					for(k=0; k<i_inc; k++)
					{
						old1_re = vec_dst_re[v_index];
						old1_im = vec_dst_im[v_index];
						old2_re = vec_dst_re[v_index+i_inc];
						old2_im = vec_dst_im[v_index+i_inc];
						w = sincos[w_index];
						vec_dst_re[v_index+i_inc] = (old1_re - old2_re)*w.real - (old1_im - old2_im)*w.imag;
						vec_dst_im[v_index+i_inc] = (old1_im - old2_im)*w.real + (old1_re - old2_re)*w.imag;
						vec_dst_re[v_index] = old1_re + old2_re;
						vec_dst_im[v_index] = old1_im + old2_im;
						w_index += w_inc;
						v_index++;
					}
					v_index += i_inc;
				}
				w_inc <<= 1;
				i_inc >>= 1;
			}

			j = 0;
			for(i=1;i<fs1;i++)
			{
				k = fs2;
				while(k <= j)
				{
					j = j - k;
					k >>= 1;
				}
				j = j + k;
				if(i < j)
				{
					old1_re = vec_dst_re[j];
					old1_im = vec_dst_im[j];
					vec_dst_re[j] = vec_dst_re[i];
					vec_dst_im[j] = vec_dst_im[i];
					vec_dst_re[i] = old1_re;
					vec_dst_im[i] = old1_im;
				}
			}

//		g = 2.0f / (float)fftsize;
/*
		ein fehler tritt auf beim 0.sample, hier sollte nur mal 1.0 multipliziert werden
		wenn gelten soll : Energie im zeitfenster == Energie im Frequenz-dichte-fenster
		
			g = 1.0f;
			for(i = 0; i < fs2; i++)
			{
				vec_dst_re[i] *= g;
				vec_dst_im[i] *= g;
			}
			*/
		
			g = 1.0f / (float)fftsize;
			for(i = 0; i < fftsize; i++)
			{
				vec_dst_re[i] *= g;
				vec_dst_im[i] *= g;
			}

			outlet_bang(x->x_obj.ob_outlet);
			a = (t_garray *)pd_findbyclass(x->x_sym_dst_re, garray_class);
			garray_redraw(a);
			a = (t_garray *)pd_findbyclass(x->x_sym_dst_im, garray_class);
			garray_redraw(a);
		}
	}
	else
	{
		post("tab_ifft-ERROR: list need 4 float arguments:");
		post("  source_real_offset + source_imag_offset + destination_real_offset + destination_imag_offset");
	}
}

static void tab_ifft_free(t_tab_ifft *x)
{
	freebytes(x->x_sin_cos, x->x_fftsize * sizeof(TAB_COMPLEX));
}

static void *tab_ifft_new(t_symbol *s, int argc, t_atom *argv)
{
	t_tab_ifft *x = (t_tab_ifft *)pd_new(tab_ifft_class);
	t_symbol	*src_re, *src_im, *dst_re, *dst_im;
	int fftsize, i=1;

	if((argc >= 5) &&
		IS_A_SYMBOL(argv,0) &&
		IS_A_SYMBOL(argv,1) &&
		IS_A_SYMBOL(argv,2) &&
		IS_A_SYMBOL(argv,3) &&
		IS_A_FLOAT(argv,4))
	{
		src_re = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		src_im = (t_symbol *)atom_getsymbolarg(1, argc, argv);
		dst_re = (t_symbol *)atom_getsymbolarg(2, argc, argv);
		dst_im = (t_symbol *)atom_getsymbolarg(3, argc, argv);
		fftsize = (int)atom_getintarg(4, argc, argv);
	}
	else
	{
		post("tab_ifft-ERROR: need 4 symbols + 1 float arguments:");
		post("  source_real_array_name + source_imag_array_name + destination_real_array_name + destination_imag_array_name + IFFT-size");
		return(0);
	}

	if(fftsize < 8)
		fftsize = 8;

	while(i <= fftsize)
		i *= 2;
	i /= 2;
	fftsize = i;

	x->x_fftsize = fftsize;
	x->x_sym_src_re = src_re;
	x->x_sym_src_im = src_im;
	x->x_sym_dst_re = dst_re;
	x->x_sym_dst_im = dst_im;
	x->x_sin_cos = (TAB_COMPLEX *)getbytes(x->x_fftsize * sizeof(TAB_COMPLEX));
	tab_ifft_init(x);
	outlet_new(&x->x_obj, &s_bang);
	return(x);
}

void tab_ifft_setup(void)
{
	tab_ifft_class = class_new(gensym("tab_ifft"), (t_newmethod)tab_ifft_new, (t_method)tab_ifft_free,
					 sizeof(t_tab_ifft), 0, A_GIMME, 0);
	class_addbang(tab_ifft_class, (t_method)tab_ifft_bang);
	class_addlist(tab_ifft_class, (t_method)tab_ifft_list);
	class_addmethod(tab_ifft_class, (t_method)tab_ifft_ifftsize, gensym("ifftsize"), A_DEFFLOAT, 0);
	class_addmethod(tab_ifft_class, (t_method)tab_ifft_src_re, gensym("src_re"), A_DEFSYMBOL, 0);
	class_addmethod(tab_ifft_class, (t_method)tab_ifft_src_im, gensym("src_im"), A_DEFSYMBOL, 0);
	class_addmethod(tab_ifft_class, (t_method)tab_ifft_src_re, gensym("src1"), A_DEFSYMBOL, 0);
	class_addmethod(tab_ifft_class, (t_method)tab_ifft_src_im, gensym("src2"), A_DEFSYMBOL, 0);
	class_addmethod(tab_ifft_class, (t_method)tab_ifft_dst_re, gensym("dst_re"), A_DEFSYMBOL, 0);
	class_addmethod(tab_ifft_class, (t_method)tab_ifft_dst_im, gensym("dst_re"), A_DEFSYMBOL, 0);
	class_addmethod(tab_ifft_class, (t_method)tab_ifft_dst_re, gensym("dst1"), A_DEFSYMBOL, 0);
	class_addmethod(tab_ifft_class, (t_method)tab_ifft_dst_im, gensym("dst2"), A_DEFSYMBOL, 0);
	class_sethelpsymbol(tab_ifft_class, gensym("iemhelp2/tab_ifft-help"));
}

--- NEW FILE: tab_find_peaks.c ---
/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.

iem_tab written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */

#ifdef NT
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif


#include "m_pd.h"
#include "iemlib.h"
#include "iem_tab.h"
#include <math.h>
#include <stdio.h>
#include <string.h>


/* -------------------------- tab_find_peaks ------------------------------ */

#define IEMLIB_TAB_FIND_PEAKS_SORT_MODE_AMP 0
#define IEMLIB_TAB_FIND_PEAKS_SORT_MODE_FREQ 1

typedef struct _tab_find_peaks
{
	t_object	x_obj;
	int				x_size_src1;
	int				x_offset_src1;
	float			*x_beg_mem_src1;
  int       x_work_alloc;
  int  			*x_beg_mem_work1;
  float  		*x_beg_mem_work2;
  int       x_sort_mode;
  float     x_hdiff;
  int       x_min_width;
  int       x_max_width;
  int       x_n_peaks;
	t_symbol	*x_sym_scr1;
	t_outlet	*x_bang_out;
  t_outlet	*x_sort_index_out;
	t_outlet	*x_peak_value_out;
	t_outlet	*x_peak_index_out;
} t_tab_find_peaks;

static t_class *tab_find_peaks_class;

static void tab_find_peaks_max_peaks(t_tab_find_peaks *x, t_floatarg fmax_peaks)
{
  int max_peaks = (int)fmax_peaks;

  if(max_peaks <= 0)
    max_peaks = 1;
	x->x_n_peaks = max_peaks;
}

static void tab_find_peaks_width_range(t_tab_find_peaks *x, t_symbol *s, int argc, t_atom *argv)
{
	int minw, maxw, h;

	if((argc >= 2) &&
		IS_A_FLOAT(argv,0) &&
		IS_A_FLOAT(argv,1))
	{
		minw = (int)atom_getintarg(0, argc, argv);
    maxw = (int)atom_getintarg(1, argc, argv);
		if(minw <= 0)
      minw = 1;
    if(maxw <= 0)
      maxw = 1;
    if(minw > maxw)
    {
      h = minw;
      minw = maxw;
      maxw = h;
    }
    x->x_min_width = minw;
    x->x_max_width = maxw;
	}
}

static void tab_find_peaks_abs_min_height_diff(t_tab_find_peaks *x, t_floatarg height_diff)
{
  if(height_diff < 0.0f)
    height_diff *= -1.0f;
	x->x_hdiff = height_diff;
}

static void tab_find_peaks_amp_sort(t_tab_find_peaks *x)
{
	x->x_sort_mode = IEMLIB_TAB_FIND_PEAKS_SORT_MODE_AMP;
}

static void tab_find_peaks_freq_sort(t_tab_find_peaks *x)
{
	x->x_sort_mode = IEMLIB_TAB_FIND_PEAKS_SORT_MODE_FREQ;
}

static void tab_find_peaks_src(t_tab_find_peaks *x, t_symbol *s)
{
	x->x_sym_scr1 = s;
}

static void tab_find_peaks_bang(t_tab_find_peaks *x)
{
  int i, n, w, ww;
  int ok_src, peak_index=0, sort_index=0;
  t_float *vec_src, *vec_work2;
  int *vec_work1;
  t_float max=-1.0e37;
  int max_peaks=x->x_n_peaks;
  int min_width=x->x_min_width;
  int max_width=x->x_max_width;
  t_float abs_min_height_diff=x->x_hdiff;
  
  ok_src = iem_tab_check_arrays(gensym("tab_find_peaks"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, 0);
  
  if(ok_src)
  {
    n = x->x_size_src1;
    if(n)
    {
      if(!x->x_work_alloc)
      {
        x->x_beg_mem_work1 = (int *)getbytes(n * sizeof(int));
        x->x_beg_mem_work2 = (float *)getbytes(n * sizeof(float));
        x->x_work_alloc = n;
      }
      else if(n != x->x_work_alloc)
      {
        x->x_beg_mem_work1 = (int *)resizebytes(x->x_beg_mem_work1, x->x_work_alloc*sizeof(int), n*sizeof(int));
        x->x_beg_mem_work2 = (float *)resizebytes(x->x_beg_mem_work2, x->x_work_alloc*sizeof(float), n*sizeof(float));
        x->x_work_alloc = n;
      }
      vec_src = x->x_beg_mem_src1;
      vec_work1 = x->x_beg_mem_work1;
      vec_work2 = x->x_beg_mem_work2;
      if(x->x_sort_mode == IEMLIB_TAB_FIND_PEAKS_SORT_MODE_FREQ) // FREQ_SORT BEGIN
      {
        int sort_index=1,old=0,j;
        
        for(i=0; i<n; i++)
        {
          vec_work1[i] = 0;
        }
        for(w=min_width; w<=max_width; w++) // w variiert zw. min u. max
        {
          for(ww=0; ww<w; ww++)
          {
            int beg=w-ww;
            int end=n-1-ww;
            int low_bord=beg-1;
            int high_bord=n-end-1;
            t_float diff_low,diff_high;
            
            for(i=beg; i<end; i++)
            {
              diff_low = vec_src[i-low_bord] - abs_min_height_diff;
              diff_high = vec_src[i+high_bord] - abs_min_height_diff;
              if((vec_src[i-low_bord-1] < diff_low) && !vec_work1[i-low_bord] && 
                      (vec_src[i+high_bord+1] < diff_high) && !vec_work1[i+high_bord])
              {
                for(j=i-low_bord; j<=i+high_bord; j++)
                  vec_work1[j] = 1;
                //post("f[%d]=%g, f[%d]=%g",i-low_bord,vec_src[i-low_bord],i+high_bord,vec_src[i+high_bord]);
              }
            }
          }
        }
        old = vec_work1[0];
        sort_index=1;
        for(i=1; i<n; i++)
        {
          if(!old && vec_work1[i])
          {
            vec_work1[i] = 0;
            j=i+1;
            while(vec_work1[j])
            {
              vec_work1[j] = 0;
              j++;
            }
            j--;
            peak_index = (i + j) / 2;
            if(sort_index <= max_peaks)
            {
              outlet_float(x->x_peak_value_out, vec_src[i]);
              outlet_float(x->x_peak_index_out, (float)peak_index);
              outlet_float(x->x_sort_index_out, sort_index);
              sort_index++;
            }
            else
              i = n+1;
          }
          old = vec_work1[i];
        }
        outlet_bang(x->x_bang_out);
      }                                                               // FREQ_SORT END
      else if(x->x_sort_mode == IEMLIB_TAB_FIND_PEAKS_SORT_MODE_AMP)  // AMP_SORT BEGIN
      {
        int sort_index=1,old=0,j;
        
        for(i=0; i<n; i++)
        {
          vec_work1[i] = 0;
          vec_work2[i] = 0.0f;
        }
        for(w=min_width; w<=max_width; w++) // w variiert zw. min u. max
        {
          for(ww=0; ww<w; ww++)
          {
            int beg=w-ww;
            int end=n-1-ww;
            int low_bord=beg-1;
            int high_bord=n-end-1;
            t_float diff_low,diff_high;
            
            for(i=beg; i<end; i++)
            {
              diff_low = vec_src[i-low_bord] - abs_min_height_diff;
              diff_high = vec_src[i+high_bord] - abs_min_height_diff;
              if((vec_src[i-low_bord-1] < diff_low) && !vec_work1[i-low_bord] && 
                      (vec_src[i+high_bord+1] < diff_high) && !vec_work1[i+high_bord])
              {
                for(j=i-low_bord; j<=i+high_bord; j++)
                {
                  vec_work1[j] = 1;
                  vec_work2[j] = vec_src[j];
                }
                //post("a[%d]=%g, a[%d]=%g",i-low_bord,vec_src[i-low_bord],i+high_bord,vec_src[i+high_bord]);
              }
            }
          }
        }
        old = vec_work1[0];
        for(sort_index=1; sort_index<=max_peaks; sort_index++)
        {
          max = -1.0e37;
          peak_index = -1;
          for(i=0; i<n; i++)
          {
            if(vec_work1[i])
            {
              if(vec_work2[i] > max)
              {
                max = vec_work2[i];
                peak_index = i;
              }
            }
          }
          
          if(peak_index >= 0)
          {
            outlet_float(x->x_peak_value_out, max);
            outlet_float(x->x_peak_index_out, (float)peak_index);
            outlet_float(x->x_sort_index_out, sort_index);
            vec_work1[peak_index] = 0;
            vec_work2[peak_index] = 0.0f;
            j=peak_index+1;
            while(vec_work1[j])
            {
              vec_work1[j] = 0;
              j++;
            }
            j=peak_index-1;
            while(vec_work1[j])
            {
              vec_work1[j] = 0;
              j--;
            }
          }
          else
            sort_index = max_peaks+1;
        }
        outlet_bang(x->x_bang_out);
      }
    }                                                                            // AMP_SORT END
  }
  /*
  [n]                    zu  [n-1] u. [n+1]   (ww=0)(w=1)(beg=1)(end=n-1)
  [n-1] u. [n]           zu  [n-2] u. [n+1]   (ww=0)(w=2)(beg=2)(end=n-1)
  [n] u. [n+1]           zu  [n-1] u. [n+2]   (ww=1)(w=2)(beg=1)(end=n-2)
  [n-2] u. [n-1] u. [n]  zu  [n-3] u. [n+1]   (ww=0)(w=3)(beg=3)(end=n-1)
  [n-1] u. [n] u. [n+1]  zu  [n-2] u. [n+2]   (ww=1)(w=3)(beg=2)(end=n-2)
  [n] u. [n+1] u. [n+2]  zu  [n-1] u. [n+3]   (ww=2)(w=3)(beg=1)(end=n-3)
  */
}

/*static void tab_find_peaks_list(t_tab_find_peaks *x, t_symbol *s, int argc, t_atom *argv)
{
	int beg_src;
	int i, n;
	int ok_src, max_index=0;
	t_float *vec_src;
	t_float max=-1.0e37;

	if((argc >= 2) &&
		IS_A_FLOAT(argv,0) &&
		IS_A_FLOAT(argv,1))
	{
		beg_src = (int)atom_getintarg(0, argc, argv);
		n = (int)atom_getintarg(1, argc, argv);
		if(beg_src < 0)
			beg_src = 0;
		if(n < 0)
			n = 0;

		ok_src = iem_tab_check_arrays(gensym("tab_find_peaks"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, beg_src+n);

		if(ok_src)
		{
			vec_src = x->x_beg_mem_src1 + beg_src;
			if(n)
			{
				for(i=0; i<n; i++)
				{
					if(vec_src[i] > max)
					{
						max = vec_src[i];
						max_index = i + beg_src;
					}
				}
				outlet_float(x->x_peak_value_out, max);
				outlet_float(x->x_peak_index_out, (float)max_index);
				outlet_bang(x->x_bang_out);
			}
		}
	}
	else
	{
		post("tab_find_peaks-ERROR: list need 2 float arguments:");
		post("  source_offset + number_of_samples_to_calc_max_index");
	}
}*/

static void tab_find_peaks_free(t_tab_find_peaks *x)
{
  if(x->x_work_alloc)
  {
    freebytes(x->x_beg_mem_work1, x->x_work_alloc * sizeof(int));
    freebytes(x->x_beg_mem_work2, x->x_work_alloc * sizeof(float));
  }
}

static void *tab_find_peaks_new(t_symbol *s, int argc, t_atom *argv)
{
	t_tab_find_peaks *x = (t_tab_find_peaks *)pd_new(tab_find_peaks_class);
	t_symbol	*src;

	if((argc >= 1) &&
		IS_A_SYMBOL(argv,0))
	{
		src = (t_symbol *)atom_getsymbolarg(0, argc, argv);
	}
	else
	{
		post("tab_find_peaks-ERROR: need 1 symbol argument:");
		post("  source_array_name");
		return(0);
	}

  x->x_work_alloc = 0;
  x->x_beg_mem_work1 = (int *)0;
  x->x_beg_mem_work2 = (float *)0;

	x->x_sym_scr1 = src;
	x->x_bang_out = (t_outlet *)outlet_new(&x->x_obj, &s_bang); // ready
  x->x_sort_index_out = (t_outlet *)outlet_new(&x->x_obj, &s_float); // sort index
	x->x_peak_index_out = (t_outlet *)outlet_new(&x->x_obj, &s_float); // freq
	x->x_peak_value_out = (t_outlet *)outlet_new(&x->x_obj, &s_float); // value
  
	return(x);
}

void tab_find_peaks_setup(void)
{
	tab_find_peaks_class = class_new(gensym("tab_find_peaks"), (t_newmethod)tab_find_peaks_new, (t_method)tab_find_peaks_free,
					 sizeof(t_tab_find_peaks), 0, A_GIMME, 0);
	class_addbang(tab_find_peaks_class, (t_method)tab_find_peaks_bang);
	/*class_addlist(tab_find_peaks_class, (t_method)tab_find_peaks_list);*/
	class_addmethod(tab_find_peaks_class, (t_method)tab_find_peaks_src, gensym("src"), A_DEFSYMBOL, 0);
	class_addmethod(tab_find_peaks_class, (t_method)tab_find_peaks_src, gensym("src1"), A_DEFSYMBOL, 0);
  class_addmethod(tab_find_peaks_class, (t_method)tab_find_peaks_max_peaks, gensym("max_peaks"), A_DEFFLOAT, 0);
  class_addmethod(tab_find_peaks_class, (t_method)tab_find_peaks_width_range, gensym("width_range"), A_GIMME, 0);
  class_addmethod(tab_find_peaks_class, (t_method)tab_find_peaks_abs_min_height_diff, gensym("abs_min_height_diff"), A_DEFFLOAT, 0);
  class_addmethod(tab_find_peaks_class, (t_method)tab_find_peaks_amp_sort, gensym("amp_sort"), 0);
  class_addmethod(tab_find_peaks_class, (t_method)tab_find_peaks_freq_sort, gensym("freq_sort"), 0);
	class_sethelpsymbol(tab_find_peaks_class, gensym("iemhelp2/tab_find_peaks-help"));
}

--- NEW FILE: tab_add_scalar.c ---
/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.

iem_tab written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */

#ifdef NT
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif


#include "m_pd.h"
#include "iemlib.h"
#include "iem_tab.h"
#include <math.h>
#include <stdio.h>
#include <string.h>


/* -------------------------- tab_add_scalar ------------------------------ */

typedef struct _tab_add_scalar
{
	t_object	x_obj;
	int				x_size_src1;
	int				x_size_dst;
	int				x_offset_src1;
	int				x_offset_dst;
	float			*x_beg_mem_src1;
	float			*x_beg_mem_dst;
	t_symbol	*x_sym_scr1;
	t_symbol	*x_sym_dst;
} t_tab_add_scalar;

static t_class *tab_add_scalar_class;

static void tab_add_scalar_src(t_tab_add_scalar *x, t_symbol *s)
{
	x->x_sym_scr1 = s;
}

static void tab_add_scalar_float(t_tab_add_scalar *x, t_floatarg add)
{
	int i, n;
	int ok_src1, ok_dst;
	t_float *vec_src1, *vec_dst;

	ok_src1 = iem_tab_check_arrays(gensym("tab_add_scalar"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, 0);
	ok_dst = iem_tab_check_arrays(gensym("tab_add_scalar"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, 0);

	if(ok_src1 && ok_dst)
	{
		if(x->x_size_src1 < x->x_size_dst)
			n = x->x_size_src1;
		else
			n = x->x_size_dst;

		vec_src1 = x->x_beg_mem_src1;
		vec_dst = x->x_beg_mem_dst;
		if(n)
		{
			t_garray *a;

			for(i=0; i<n; i++)
				vec_dst[i] = vec_src1[i] + add;
			outlet_bang(x->x_obj.ob_outlet);
			a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
			garray_redraw(a);
		}
	}
}

static void tab_add_scalar_dst(t_tab_add_scalar *x, t_symbol *s)
{
	x->x_sym_dst = s;
}

static void tab_add_scalar_list(t_tab_add_scalar *x, t_symbol *s, int argc, t_atom *argv)
{
	int beg_src1, beg_dst;
	int i, n;
	int ok_src1, ok_dst;
	t_float *vec_src1, *vec_dst, add;

	if((argc >= 4) &&
		IS_A_FLOAT(argv,0) &&
		IS_A_FLOAT(argv,1) &&
		IS_A_FLOAT(argv,2) &&
		IS_A_FLOAT(argv,3))
	{
		beg_src1 = (int)atom_getintarg(0, argc, argv);
		beg_dst = (int)atom_getintarg(1, argc, argv);
		n = (int)atom_getintarg(2, argc, argv);
		add = (t_float)atom_getfloatarg(3, argc, argv);
		if(beg_src1 < 0)
			beg_src1 = 0;
		if(beg_dst < 0)
			beg_dst = 0;
		if(n < 0)
			n = 0;

		ok_src1 = iem_tab_check_arrays(gensym("tab_add_scalar"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, beg_src1+n);
		ok_dst = iem_tab_check_arrays(gensym("tab_add_scalar"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, beg_dst+n);

		if(ok_src1 && ok_dst)
		{
			vec_src1 = x->x_beg_mem_src1 + beg_src1;
			vec_dst = x->x_beg_mem_dst + beg_dst;
			if(n)
			{
				t_garray *a;

				for(i=0; i<n; i++)
					vec_dst[i] = vec_src1[i] + add;
				outlet_bang(x->x_obj.ob_outlet);
				a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
				garray_redraw(a);
			}
		}
	}
	else
	{
		post("tab_add_scalar-ERROR: list need 4 float arguments:");
		post("  source1_offset + destination_offset + number_of_samples_to_add + add_scalar");
	}
}

static void tab_add_scalar_free(t_tab_add_scalar *x)
{
}

static void *tab_add_scalar_new(t_symbol *s, int argc, t_atom *argv)
{
	t_tab_add_scalar *x = (t_tab_add_scalar *)pd_new(tab_add_scalar_class);
	t_symbol	*src1, *dst;

	if((argc >= 2) &&
		IS_A_SYMBOL(argv,0) &&
		IS_A_SYMBOL(argv,1))
	{
		src1 = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		dst = (t_symbol *)atom_getsymbolarg(1, argc, argv);
	}
	else if((argc >= 1) &&
		IS_A_SYMBOL(argv,0))
	{
		src1 = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		dst = src1;
	}
	else
	{
		post("tab_add_scalar-ERROR: need 2 symbol arguments:");
		post("  source_array_name + destination_array_name");
		return(0);
	}

	x->x_sym_scr1 = src1;
	x->x_sym_dst = dst;
	outlet_new(&x->x_obj, &s_bang);
	return(x);
}

void tab_add_scalar_setup(void)
{
	tab_add_scalar_class = class_new(gensym("tab_add_scalar"), (t_newmethod)tab_add_scalar_new, (t_method)tab_add_scalar_free,
					 sizeof(t_tab_add_scalar), 0, A_GIMME, 0);
	class_addfloat(tab_add_scalar_class, (t_method)tab_add_scalar_float);
	class_addlist(tab_add_scalar_class, (t_method)tab_add_scalar_list);
	class_addmethod(tab_add_scalar_class, (t_method)tab_add_scalar_src, gensym("src1"), A_DEFSYMBOL, 0);
	class_addmethod(tab_add_scalar_class, (t_method)tab_add_scalar_src, gensym("src"), A_DEFSYMBOL, 0);
	class_addmethod(tab_add_scalar_class, (t_method)tab_add_scalar_dst, gensym("dst"), A_DEFSYMBOL, 0);
	class_sethelpsymbol(tab_add_scalar_class, gensym("iemhelp2/tab_add_scalar-help"));
}

--- NEW FILE: tab_fft.c ---
/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.

iem_tab written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */

#ifdef NT
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif


#include "m_pd.h"
#include "iemlib.h"
#include "iem_tab.h"
#include <math.h>
#include <stdio.h>
#include <string.h>


/* -------------------------- tab_fft ------------------------------ */

typedef struct _tab_fft
{
	t_object	x_obj;
	int				x_size_src_re;
	int				x_size_src_im;
	int				x_size_dst_re;
	int				x_size_dst_im;
	int				x_offset_src_re;
	int				x_offset_src_im;
	int				x_offset_dst_re;
	int				x_offset_dst_im;
	int				x_fftsize;
	float			*x_beg_mem_src_re;
	float			*x_beg_mem_src_im;
	float			*x_beg_mem_dst_re;
	float			*x_beg_mem_dst_im;
	TAB_COMPLEX		*x_sin_cos;
	t_symbol	*x_sym_src_re;
	t_symbol	*x_sym_src_im;
	t_symbol	*x_sym_dst_re;
	t_symbol	*x_sym_dst_im;
} t_tab_fft;

static t_class *tab_fft_class;

static void tab_fft_init(t_tab_fft *x)
{
	int i, fftsize = x->x_fftsize;
	float f, g;
	TAB_COMPLEX *sincos = x->x_sin_cos;

	g = 2.0f * 3.1415926538f / (float)fftsize;
	for(i=0; i<fftsize; i++)
	{
		f = g * (float)i;
		(*sincos).real = cos(f);
		(*sincos).imag = -sin(f);/*FFT*/
		sincos++;
	}
}

static void tab_fft_fftsize(t_tab_fft *x, t_floatarg f)
{
	int i=1, fftsize = (int)f;

	if(fftsize < 8)
		fftsize = 8;

	while(i <= fftsize)
		i *= 2;
	i /= 2;

	if(i != x->x_fftsize)
	{
		x->x_sin_cos = (TAB_COMPLEX *)resizebytes(x->x_sin_cos, x->x_fftsize*sizeof(TAB_COMPLEX), i*sizeof(TAB_COMPLEX));
		x->x_fftsize = i;
	}
	tab_fft_init(x);
}

static void tab_fft_src_re(t_tab_fft *x, t_symbol *s)
{
	x->x_sym_src_re = s;
}

static void tab_fft_src_im(t_tab_fft *x, t_symbol *s)
{
	x->x_sym_src_im = s;
}

static void tab_fft_dst_re(t_tab_fft *x, t_symbol *s)
{
	x->x_sym_dst_re = s;
}

static void tab_fft_dst_im(t_tab_fft *x, t_symbol *s)
{
	x->x_sym_dst_im = s;
}

static void tab_fft_bang(t_tab_fft *x)
{
	int i, j, k;
	int ok_src_re, ok_src_im, ok_dst_re, ok_dst_im;
	int w_index, w_inc, i_inc, v_index;
	int fftsize = x->x_fftsize;
	int fs1 = fftsize - 1;
	int fs2 = fftsize / 2;
	TAB_COMPLEX w;
	TAB_COMPLEX *sincos = x->x_sin_cos;
	t_float *vec_src_re, *vec_src_im, *vec_dst_re, *vec_dst_im;
	t_float old1_re, old1_im, old2_re, old2_im;

	ok_src_re = iem_tab_check_arrays(gensym("tab_fft"), x->x_sym_src_re, &x->x_beg_mem_src_re, &x->x_size_src_re, fftsize);
	ok_src_im = iem_tab_check_arrays(gensym("tab_fft"), x->x_sym_src_im, &x->x_beg_mem_src_im, &x->x_size_src_im, fftsize);
	ok_dst_re = iem_tab_check_arrays(gensym("tab_fft"), x->x_sym_dst_re, &x->x_beg_mem_dst_re, &x->x_size_dst_re, fftsize);
	ok_dst_im = iem_tab_check_arrays(gensym("tab_fft"), x->x_sym_dst_im, &x->x_beg_mem_dst_im, &x->x_size_dst_im, fftsize);
	if(ok_src_re && ok_src_im && ok_dst_re && ok_dst_im)
	{
		t_garray *a;

		vec_src_re=x->x_beg_mem_src_re;
		vec_src_im=x->x_beg_mem_src_im;
		vec_dst_re=x->x_beg_mem_dst_re;
		vec_dst_im=x->x_beg_mem_dst_im;

		for(k=0; k<fftsize; k++)
		{
			vec_dst_re[k] = vec_src_re[k];
			vec_dst_im[k] = vec_src_im[k];
		}

		i_inc = fs2;
		w_inc = 1;
		for(i=1; i<fftsize; i<<=1)
		{
			v_index = 0;
			for(j=0; j<i; j++)
			{
				w_index = 0;
				for(k=0; k<i_inc; k++)
				{
					old1_re = vec_dst_re[v_index];
					old1_im = vec_dst_im[v_index];
					old2_re = vec_dst_re[v_index+i_inc];
					old2_im = vec_dst_im[v_index+i_inc];
					w = sincos[w_index];
					vec_dst_re[v_index+i_inc] = (old1_re - old2_re)*w.real - (old1_im - old2_im)*w.imag;
					vec_dst_im[v_index+i_inc] = (old1_im - old2_im)*w.real + (old1_re - old2_re)*w.imag;
					vec_dst_re[v_index] = old1_re + old2_re;
					vec_dst_im[v_index] = old1_im + old2_im;
					w_index += w_inc;
					v_index++;
				}
				v_index += i_inc;
			}
			w_inc <<= 1;
			i_inc >>= 1;
		}

		j = 0;
		for(i=1;i<fs1;i++)
		{
			k = fs2;
			while(k <= j)
			{
				j = j - k;
				k >>= 1;
			}
			j = j + k;
			if(i < j)
			{
				old1_re = vec_dst_re[j];
				old1_im = vec_dst_im[j];
				vec_dst_re[j] = vec_dst_re[i];
				vec_dst_im[j] = vec_dst_im[i];
				vec_dst_re[i] = old1_re;
				vec_dst_im[i] = old1_im;
			}
		}

//		g = 2.0f / (float)fftsize;
/*
		ein fehler tritt auf beim 0.sample, hier sollte nur mal 1.0 multipliziert werden
		wenn gelten soll : Energie im zeitfenster == Energie im Frequenz-dichte-fenster

	g = 1.0f;
		for(i = 0; i < fs2; i++)
		{
			vec_dst_re[i] *= g;
			vec_dst_im[i] *= g;
		}
		*/
		

		outlet_bang(x->x_obj.ob_outlet);
		a = (t_garray *)pd_findbyclass(x->x_sym_dst_re, garray_class);
		garray_redraw(a);
		a = (t_garray *)pd_findbyclass(x->x_sym_dst_im, garray_class);
		garray_redraw(a);
	}
}

static void tab_fft_list(t_tab_fft *x, t_symbol *s, int argc, t_atom *argv)
{
	int beg_src_re, beg_src_im, beg_dst_re, beg_dst_im;
	int i, j, k;
	int ok_src_re, ok_src_im, ok_dst_re, ok_dst_im;
	int w_index, w_inc, i_inc, v_index;
	int fftsize = x->x_fftsize;
	int fs1 = fftsize - 1;
	int fs2 = fftsize / 2;
	TAB_COMPLEX w;
	TAB_COMPLEX *sincos = x->x_sin_cos;
	t_float *vec_src_re, *vec_src_im, *vec_dst_re, *vec_dst_im;
	t_float old1_re, old1_im, old2_re, old2_im;

	if((argc >= 4) &&
		IS_A_FLOAT(argv,0) &&
		IS_A_FLOAT(argv,1) &&
		IS_A_FLOAT(argv,2) &&
		IS_A_FLOAT(argv,3))
	{
		beg_src_re = (int)atom_getintarg(0, argc, argv);
		beg_src_im = (int)atom_getintarg(1, argc, argv);
		beg_dst_re = (int)atom_getintarg(2, argc, argv);
		beg_dst_im = (int)atom_getintarg(3, argc, argv);
		if(beg_src_re < 0)
			beg_src_re = 0;
		if(beg_src_im < 0)
			beg_src_im = 0;
		if(beg_dst_re < 0)
			beg_dst_re = 0;
		if(beg_dst_im < 0)
			beg_dst_im = 0;

		ok_src_re = iem_tab_check_arrays(gensym("tab_fft"), x->x_sym_src_re, &x->x_beg_mem_src_re, &x->x_size_src_re, beg_src_re+fftsize);
		ok_src_im = iem_tab_check_arrays(gensym("tab_fft"), x->x_sym_src_im, &x->x_beg_mem_src_im, &x->x_size_src_im, beg_src_im+fftsize);
		ok_dst_re = iem_tab_check_arrays(gensym("tab_fft"), x->x_sym_dst_re, &x->x_beg_mem_dst_re, &x->x_size_dst_re, beg_dst_re+fftsize);
		ok_dst_im = iem_tab_check_arrays(gensym("tab_fft"), x->x_sym_dst_im, &x->x_beg_mem_dst_im, &x->x_size_dst_im, beg_dst_im+fftsize);

		if(ok_src_re && ok_src_im && ok_dst_re && ok_dst_im)
		{
			t_garray *a;

			vec_src_re=x->x_beg_mem_src_re + beg_src_re;
			vec_src_im=x->x_beg_mem_src_im + beg_src_im;
			vec_dst_re=x->x_beg_mem_dst_re + beg_dst_re;
			vec_dst_im=x->x_beg_mem_dst_im + beg_dst_im;

			for(k=0; k<fftsize; k++)
			{
				vec_dst_re[k] = vec_src_re[k];
				vec_dst_im[k] = vec_src_im[k];
			}

			i_inc = fs2;
			w_inc = 1;
			for(i=1; i<fftsize; i<<=1)
			{
				v_index = 0;
				for(j=0; j<i; j++)
				{
					w_index = 0;
					for(k=0; k<i_inc; k++)
					{
						old1_re = vec_dst_re[v_index];
						old1_im = vec_dst_im[v_index];
						old2_re = vec_dst_re[v_index+i_inc];
						old2_im = vec_dst_im[v_index+i_inc];
						w = sincos[w_index];
						vec_dst_re[v_index+i_inc] = (old1_re - old2_re)*w.real - (old1_im - old2_im)*w.imag;
						vec_dst_im[v_index+i_inc] = (old1_im - old2_im)*w.real + (old1_re - old2_re)*w.imag;
						vec_dst_re[v_index] = old1_re + old2_re;
						vec_dst_im[v_index] = old1_im + old2_im;
						w_index += w_inc;
						v_index++;
					}
					v_index += i_inc;
				}
				w_inc <<= 1;
				i_inc >>= 1;
			}

			j = 0;
			for(i=1;i<fs1;i++)
			{
				k = fs2;
				while(k <= j)
				{
					j = j - k;
					k >>= 1;
				}
				j = j + k;
				if(i < j)
				{
					old1_re = vec_dst_re[j];
					old1_im = vec_dst_im[j];
					vec_dst_re[j] = vec_dst_re[i];
					vec_dst_im[j] = vec_dst_im[i];
					vec_dst_re[i] = old1_re;
					vec_dst_im[i] = old1_im;
				}
			}

//		g = 2.0f / (float)fftsize;
/*
		ein fehler tritt auf beim 0.sample, hier sollte nur mal 1.0 multipliziert werden
		wenn gelten soll : Energie im zeitfenster == Energie im Frequenz-dichte-fenster
		
			g = 1.0f;
			for(i = 0; i < fs2; i++)
			{
				vec_dst_re[i] *= g;
				vec_dst_im[i] *= g;
			}
			*/

			outlet_bang(x->x_obj.ob_outlet);
			a = (t_garray *)pd_findbyclass(x->x_sym_dst_re, garray_class);
			garray_redraw(a);
			a = (t_garray *)pd_findbyclass(x->x_sym_dst_im, garray_class);
			garray_redraw(a);
		}
	}
	else
	{
		post("tab_fft-ERROR: list need 4 float arguments:");
		post("  source_real_offset + source_imag_offset + destination_real_offset + destination_imag_offset");
	}
}

static void tab_fft_free(t_tab_fft *x)
{
	freebytes(x->x_sin_cos, x->x_fftsize * sizeof(TAB_COMPLEX));
}

static void *tab_fft_new(t_symbol *s, int argc, t_atom *argv)
{
	t_tab_fft *x = (t_tab_fft *)pd_new(tab_fft_class);
	t_symbol	*src_re, *src_im, *dst_re, *dst_im;
	int fftsize, i=1;

	if((argc >= 5) &&
		IS_A_SYMBOL(argv,0) &&
		IS_A_SYMBOL(argv,1) &&
		IS_A_SYMBOL(argv,2) &&
		IS_A_SYMBOL(argv,3) &&
		IS_A_FLOAT(argv,4))
	{
		src_re = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		src_im = (t_symbol *)atom_getsymbolarg(1, argc, argv);
		dst_re = (t_symbol *)atom_getsymbolarg(2, argc, argv);
		dst_im = (t_symbol *)atom_getsymbolarg(3, argc, argv);
		fftsize = (int)atom_getintarg(4, argc, argv);
	}
	else
	{
		post("tab_fft-ERROR: need 4 symbols + 1 float arguments:");
		post("  source_real_array_name + source_imag_array_name + destination_real_array_name + destination_imag_array_name + FFT-size");
		return(0);
	}

	if(fftsize < 8)
		fftsize = 8;

	while(i <= fftsize)
		i *= 2;
	i /= 2;
	fftsize = i;

	x->x_fftsize = fftsize;
	x->x_sym_src_re = src_re;
	x->x_sym_src_im = src_im;
	x->x_sym_dst_re = dst_re;
	x->x_sym_dst_im = dst_im;
	x->x_sin_cos = (TAB_COMPLEX *)getbytes(x->x_fftsize * sizeof(TAB_COMPLEX));
	tab_fft_init(x);
	outlet_new(&x->x_obj, &s_bang);
	return(x);
}

void tab_fft_setup(void)
{
	tab_fft_class = class_new(gensym("tab_fft"), (t_newmethod)tab_fft_new, (t_method)tab_fft_free,
					 sizeof(t_tab_fft), 0, A_GIMME, 0);
	class_addbang(tab_fft_class, (t_method)tab_fft_bang);
	class_addlist(tab_fft_class, (t_method)tab_fft_list);
	class_addmethod(tab_fft_class, (t_method)tab_fft_fftsize, gensym("fftsize"), A_DEFFLOAT, 0);
	class_addmethod(tab_fft_class, (t_method)tab_fft_src_re, gensym("src_re"), A_DEFSYMBOL, 0);
	class_addmethod(tab_fft_class, (t_method)tab_fft_src_im, gensym("src_im"), A_DEFSYMBOL, 0);
	class_addmethod(tab_fft_class, (t_method)tab_fft_src_re, gensym("src1"), A_DEFSYMBOL, 0);
	class_addmethod(tab_fft_class, (t_method)tab_fft_src_im, gensym("src2"), A_DEFSYMBOL, 0);
	class_addmethod(tab_fft_class, (t_method)tab_fft_dst_re, gensym("dst_re"), A_DEFSYMBOL, 0);
	class_addmethod(tab_fft_class, (t_method)tab_fft_dst_im, gensym("dst_im"), A_DEFSYMBOL, 0);
	class_addmethod(tab_fft_class, (t_method)tab_fft_dst_re, gensym("dst1"), A_DEFSYMBOL, 0);
	class_addmethod(tab_fft_class, (t_method)tab_fft_dst_im, gensym("dst2"), A_DEFSYMBOL, 0);
	class_sethelpsymbol(tab_fft_class, gensym("iemhelp2/tab_fft-help"));
}

--- NEW FILE: tab_max_index.c ---
/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.

iem_tab written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */

#ifdef NT
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif


#include "m_pd.h"
#include "iemlib.h"
#include "iem_tab.h"
#include <math.h>
#include <stdio.h>
#include <string.h>


/* -------------------------- tab_max_index ------------------------------ */

typedef struct _tab_max_index
{
	t_object	x_obj;
	int				x_size_src1;
	int				x_offset_src1;
	float			*x_beg_mem_src1;
	t_symbol	*x_sym_scr1;
	void			*x_bang_out;
	void			*x_max_out;
	void			*x_max_index_out;
} t_tab_max_index;

static t_class *tab_max_index_class;

static void tab_max_index_src(t_tab_max_index *x, t_symbol *s)
{
	x->x_sym_scr1 = s;
}

static void tab_max_index_bang(t_tab_max_index *x)
{
	int i, n;
	int ok_src, max_index=0;
	t_float *vec_src;
	t_float max=-1.0e37;

	ok_src = iem_tab_check_arrays(gensym("tab_max_index"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, 0);

	if(ok_src)
	{
		n = x->x_size_src1;
		vec_src = x->x_beg_mem_src1;
		if(n)
		{
			for(i=0; i<n; i++)
			{
				if(vec_src[i] > max)
				{
					max = vec_src[i];
					max_index = i;
				}
			}
			outlet_float(x->x_max_out, max);
			outlet_float(x->x_max_index_out, (float)max_index);
			outlet_bang(x->x_bang_out);
		}
	}
}

static void tab_max_index_list(t_tab_max_index *x, t_symbol *s, int argc, t_atom *argv)
{
	int beg_src;
	int i, n;
	int ok_src, max_index=0;
	t_float *vec_src;
	t_float max=-1.0e37;

	if((argc >= 2) &&
		IS_A_FLOAT(argv,0) &&
		IS_A_FLOAT(argv,1))
	{
		beg_src = (int)atom_getintarg(0, argc, argv);
		n = (int)atom_getintarg(1, argc, argv);
		if(beg_src < 0)
			beg_src = 0;
		if(n < 0)
			n = 0;

		ok_src = iem_tab_check_arrays(gensym("tab_max_index"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, beg_src+n);

		if(ok_src)
		{
			vec_src = x->x_beg_mem_src1 + beg_src;
			if(n)
			{
				for(i=0; i<n; i++)
				{
					if(vec_src[i] > max)
					{
						max = vec_src[i];
						max_index = i + beg_src;
					}
				}
				outlet_float(x->x_max_out, max);
				outlet_float(x->x_max_index_out, (float)max_index);
				outlet_bang(x->x_bang_out);
			}
		}
	}
	else
	{
		post("tab_max_index-ERROR: list need 2 float arguments:");
		post("  source_offset + number_of_samples_to_calc_max_index");
	}
}

static void tab_max_index_free(t_tab_max_index *x)
{
}

static void *tab_max_index_new(t_symbol *s, int argc, t_atom *argv)
{
	t_tab_max_index *x = (t_tab_max_index *)pd_new(tab_max_index_class);
	t_symbol	*src;

	if((argc >= 1) &&
		IS_A_SYMBOL(argv,0))
	{
		src = (t_symbol *)atom_getsymbolarg(0, argc, argv);
	}
	else
	{
		post("tab_max_index-ERROR: need 1 symbol argument:");
		post("  source_array_name");
		return(0);
	}

	x->x_sym_scr1 = src;
	x->x_bang_out = outlet_new(&x->x_obj, &s_bang);
	x->x_max_index_out = outlet_new(&x->x_obj, &s_float);
	x->x_max_out = outlet_new(&x->x_obj, &s_float);
	return(x);
}

void tab_max_index_setup(void)
{
	tab_max_index_class = class_new(gensym("tab_max_index"), (t_newmethod)tab_max_index_new, (t_method)tab_max_index_free,
					 sizeof(t_tab_max_index), 0, A_GIMME, 0);
	class_addbang(tab_max_index_class, (t_method)tab_max_index_bang);
	class_addlist(tab_max_index_class, (t_method)tab_max_index_list);
	class_addmethod(tab_max_index_class, (t_method)tab_max_index_src, gensym("src"), A_DEFSYMBOL, 0);
	class_addmethod(tab_max_index_class, (t_method)tab_max_index_src, gensym("src1"), A_DEFSYMBOL, 0);
	class_sethelpsymbol(tab_max_index_class, gensym("iemhelp2/tab_max_index-help"));
}

--- NEW FILE: tab_ge_scalar.c ---
/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.

iem_tab written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */

#ifdef NT
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif


#include "m_pd.h"
#include "iemlib.h"
#include "iem_tab.h"
#include <math.h>
#include <stdio.h>
#include <string.h>


/* -------------------------- tab_ge_scalar ------------------------------ */

typedef struct _tab_ge_scalar
{
	t_object	x_obj;
	int				x_size_src1;
	int				x_size_dst;
	int				x_offset_src1;
	int				x_offset_dst;
	float			*x_beg_mem_src1;
	float			*x_beg_mem_dst;
	t_symbol	*x_sym_scr1;
	t_symbol	*x_sym_dst;
} t_tab_ge_scalar;

static t_class *tab_ge_scalar_class;

static void tab_ge_scalar_src(t_tab_ge_scalar *x, t_symbol *s)
{
	x->x_sym_scr1 = s;
}

static void tab_ge_scalar_float(t_tab_ge_scalar *x, t_floatarg compare)
{
	int i, n;
	int ok_src1, ok_dst;
	t_float *vec_src1, *vec_dst;

	ok_src1 = iem_tab_check_arrays(gensym("tab_ge_scalar"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, 0);
	ok_dst = iem_tab_check_arrays(gensym("tab_ge_scalar"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, 0);

	if(ok_src1 && ok_dst)
	{
		if(x->x_size_src1 < x->x_size_dst)
			n = x->x_size_src1;
		else
			n = x->x_size_dst;

		vec_src1 = x->x_beg_mem_src1;
		vec_dst = x->x_beg_mem_dst;
		if(n)
		{
			t_garray *a;

			for(i=0; i<n; i++)
      {
        if(vec_src1[i] >= compare)
				  vec_dst[i] = 1.0f;
        else
				  vec_dst[i] = 0.0f;
      }
			outlet_bang(x->x_obj.ob_outlet);
			a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
			garray_redraw(a);
		}
	}
}

static void tab_ge_scalar_dst(t_tab_ge_scalar *x, t_symbol *s)
{
	x->x_sym_dst = s;
}

static void tab_ge_scalar_list(t_tab_ge_scalar *x, t_symbol *s, int argc, t_atom *argv)
{
	int beg_src1, beg_dst;
	int i, n;
	int ok_src1, ok_dst;
	t_float *vec_src1, *vec_dst, compare;

	if((argc >= 4) &&
		IS_A_FLOAT(argv,0) &&
		IS_A_FLOAT(argv,1) &&
		IS_A_FLOAT(argv,2) &&
		IS_A_FLOAT(argv,3))
	{
		beg_src1 = (int)atom_getintarg(0, argc, argv);
		beg_dst = (int)atom_getintarg(1, argc, argv);
		n = (int)atom_getintarg(2, argc, argv);
		compare = (t_float)atom_getfloatarg(3, argc, argv);
		if(beg_src1 < 0)
			beg_src1 = 0;
		if(beg_dst < 0)
			beg_dst = 0;
		if(n < 0)
			n = 0;

		ok_src1 = iem_tab_check_arrays(gensym("tab_ge_scalar"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, beg_src1+n);
		ok_dst = iem_tab_check_arrays(gensym("tab_ge_scalar"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, beg_dst+n);

		if(ok_src1 && ok_dst)
		{
			vec_src1 = x->x_beg_mem_src1 + beg_src1;
			vec_dst = x->x_beg_mem_dst + beg_dst;
			if(n)
			{
				t_garray *a;

				for(i=0; i<n; i++)
        {
          if(vec_src1[i] >= compare)
				    vec_dst[i] = 1.0f;
          else
				    vec_dst[i] = 0.0f;
        }
				outlet_bang(x->x_obj.ob_outlet);
				a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
				garray_redraw(a);
			}
		}
	}
	else
	{
		post("tab_ge_scalar-ERROR: list need 4 float arguments:");
		post("  source1_offset + destination_offset + number_of_samples_to_compare + compare_scalar");
  }
}

static void tab_ge_scalar_free(t_tab_ge_scalar *x)
{
}

static void *tab_ge_scalar_new(t_symbol *s, int argc, t_atom *argv)
{
	t_tab_ge_scalar *x = (t_tab_ge_scalar *)pd_new(tab_ge_scalar_class);
	t_symbol	*src1, *dst;

	if((argc >= 2) &&
		IS_A_SYMBOL(argv,0) &&
		IS_A_SYMBOL(argv,1))
	{
		src1 = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		dst = (t_symbol *)atom_getsymbolarg(1, argc, argv);
	}
	else if((argc >= 1) &&
		IS_A_SYMBOL(argv,0))
	{
		src1 = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		dst = src1;
	}
	else
	{
		post("tab_ge_scalar-ERROR: need 2 symbol arguments:");
		post("  source_array_name + destination_array_name");
		return(0);
	}

	x->x_sym_scr1 = src1;
	x->x_sym_dst = dst;
	outlet_new(&x->x_obj, &s_bang);
	return(x);
}

void tab_ge_scalar_setup(void)
{
	tab_ge_scalar_class = class_new(gensym("tab_ge_scalar"), (t_newmethod)tab_ge_scalar_new, (t_method)tab_ge_scalar_free,
					 sizeof(t_tab_ge_scalar), 0, A_GIMME, 0);
	class_addfloat(tab_ge_scalar_class, (t_method)tab_ge_scalar_float);
	class_addlist(tab_ge_scalar_class, (t_method)tab_ge_scalar_list);
	class_addmethod(tab_ge_scalar_class, (t_method)tab_ge_scalar_src, gensym("src1"), A_DEFSYMBOL, 0);
	class_addmethod(tab_ge_scalar_class, (t_method)tab_ge_scalar_src, gensym("src"), A_DEFSYMBOL, 0);
	class_addmethod(tab_ge_scalar_class, (t_method)tab_ge_scalar_dst, gensym("dst"), A_DEFSYMBOL, 0);
	class_sethelpsymbol(tab_ge_scalar_class, gensym("iemhelp2/tab_ge_scalar-help"));
}

--- NEW FILE: tab_mls.c ---
/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.

iem_tab written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */

#ifdef NT
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif


#include "m_pd.h"
#include "iemlib.h"
#include "iem_tab.h"
#include <math.h>
#include <stdio.h>
#include <string.h>


/* -------------------------- tab_mls ------------------------------ */

typedef struct _tab_mls
{
	t_object	x_obj;
	int				x_size_dst;
	int				x_offset_dst;
	t_float		*x_beg_mem_dst;
	t_symbol	*x_sym_dst;
} t_tab_mls;

static t_class *tab_mls_class;

static int tab_mls_exp2(int mls_order)
{
	int i, j=1;

	for(i=0; i<mls_order; i++)
		j *= 2;
	return(j);
}

static void tab_mls_calc(t_float *vec, int mls_order)
{
	int i, j;
	int work1=1, work2, exor;
	int mask, source, mls_size;

	switch(mls_order)
	{
		case 3:
			mask = 2+1;
			source = 4;
			break;
		case 4:
			mask = 2+1;
			source = 8;
			break;
		case 5:
			mask = 4+1;
			source = 16;
			break;
		case 6:
			mask = 2+1;
			source = 32;
			break;
		case 7:
			mask = 8+1;
			source = 64;
			break;
		case 8:
			mask = 32+8+2+1;
			source = 128;
			break;
		case 9:
			mask = 16+1;
			source = 256;
			break;
		case 10:
			mask = 8+1;
			source = 512;
			break;
		case 11:
			mask = 4+1;
			source = 1024;
			break;
		case 12:
			mask = 64+16+2+1;
			source = 2048;
			break;
		case 13:
			mask = 256+128+8+1;
			source = 4096;
			break;
		case 14:
			mask = 1024+64+2+1;
			source = 8192;
			break;
		case 15:
			mask = 2+1;
			source = 16384;
			break;
		case 16:
			mask = 32+8+4+1;
			source = 32768;
			break;
		case 17:
			mask = 8+1;
			source = 65536;
			break;
		case 18:
			mask = 128+1;
			source = 131072;
			break;
		case 19:
			mask = 32+4+2+1;
			source = 262144;
			break;
		case 20:
			mask = 8+1;
			source = 524288;
			break;
	}

	mls_size = 2*source - 1;

	for(i=0; i<mls_size; i++)
	{
		i = work1 & mask;
		work2 = work1 >> 1;
		exor = 0;
		for(j=0; j<lms_order; j++)
		{
			exor +=  & 1;
			work1 >>= 1;
		}
		if(exor & 1)
		{
			vec[i] = 1.0f;
			work1 = work2 | source;
		}
		else
		{
			vec[i] = -1.0f;
			work1 = work2;
		}
	}
	return;
}

static void tab_mls_dst(t_tab_mls *x, t_symbol *s)
{
	x->x_sym_dst = s;
}

static void tab_mls_float(t_tab_mls *x, t_floatarg fmls_order)
{
	int mls_order=(int)fmls_order;
	int ok_dst, mls_size;

	mls_size = tab_mls_exp2(mls_order) - 1;
	ok_dst = iem_tab_check_arrays(gensym("tab_mls"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, mls_size);

	if(ok_dst)
	{
		if((mls_order >= 3) && (mls_order <= 20))
		{
			t_garray *a;

			tab_mls_calc(x->x_beg_mem_dst, mls_order);
			outlet_bang(x->x_obj.ob_outlet);
			a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
			garray_redraw(a);
		}
	}
}

static void tab_mls_list(t_tab_mls *x, t_symbol *s, int argc, t_atom *argv)
{
	int beg_dst;
	int i, n;
	int ok_dst;
	t_float *vec_dst, c;

	if((argc >= 3) &&
		IS_A_FLOAT(argv,0) &&
		IS_A_FLOAT(argv,1) &&
		IS_A_FLOAT(argv,2))
	{
		beg_dst = (int)atom_getintarg(0, argc, argv);
		n = (int)atom_getintarg(1, argc, argv);
		c = (t_float)atom_getfloatarg(2, argc, argv);
		if(beg_dst < 0)
			beg_dst = 0;
		if(n < 0)
			n = 0;

		ok_dst = iem_tab_check_arrays(gensym("tab_mls"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, beg_dst+n);

		if(ok_dst)
		{
			vec_dst = x->x_beg_mem_dst + beg_dst;
			if(n)
			{
				t_garray *a;

				for(i=0; i<n; i++)
					vec_dst[i] = c;
				outlet_bang(x->x_obj.ob_outlet);
				a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
				garray_redraw(a);
			}
		}
	}
	else
	{
		post("tab_mls-ERROR: list need 3 float arguments:");
		post("  destination_offset + number_of_samples_to_copy + constant-value");
	}
}

static void tab_mls_free(t_tab_mls *x)
{
}

static void *tab_mls_new(t_symbol *s, int argc, t_atom *argv)
{
	t_tab_mls *x = (t_tab_mls *)pd_new(tab_mls_class);
	t_symbol	*dst;
	t_float time;

	if((argc >= 1) &&
		IS_A_SYMBOL(argv,0))
	{
		dst = (t_symbol *)atom_getsymbolarg(0, argc, argv);
	}
	else
	{
		post("tab_mls-ERROR: need 1 symbol argument:");
		post("  destination_array_name");
		return(0);
	}

	x->x_sym_dst = dst;
	outlet_new(&x->x_obj, &s_bang);
	return(x);
}

void tab_mls_setup(void)
{
	tab_mls_class = class_new(gensym("tab_mls"), (t_newmethod)tab_mls_new, (t_method)tab_mls_free,
					 sizeof(t_tab_mls), 0, A_GIMME, 0);
	class_addfloat(tab_mls_class, (t_method)tab_mls_float);
	class_addlist(tab_mls_class, (t_method)tab_mls_list);
	class_addmethod(tab_mls_class, (t_method)tab_mls_dst, gensym("dst"), A_DEFSYMBOL, 0);
	class_sethelpsymbol(tab_mls_class, gensym("iemhelp2/tab_mls-help"));
}

--- NEW FILE: tab_counter.c ---
/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.

iem_tab written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */

#ifdef NT
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif


#include "m_pd.h"
#include "iemlib.h"
#include "iem_tab.h"
#include <math.h>
#include <stdio.h>
#include <string.h>


/* -------------------------- tab_counter ------------------------------ */

typedef struct _tab_counter
{
	t_object	x_obj;
	int				x_size_src1;
	int				x_size_dst;
	int				x_offset_src1;
	int				x_offset_dst;
	float			*x_beg_mem_src1;
	float			*x_beg_mem_dst;
	t_symbol	*x_sym_scr1;
	t_symbol	*x_sym_dst;
} t_tab_counter;

static t_class *tab_counter_class;

static void tab_counter_src(t_tab_counter *x, t_symbol *s)
{
	x->x_sym_scr1 = s;
}

static void tab_counter_bang(t_tab_counter *x)
{
	int i, n;
	int ok_src1, ok_dst;
	t_float *vec_src1, *vec_dst;

	ok_src1 = iem_tab_check_arrays(gensym("tab_counter"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, 0);
	ok_dst = iem_tab_check_arrays(gensym("tab_counter"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, 0);

	if(ok_src1 && ok_dst)
	{
		if(x->x_size_src1 < x->x_size_dst)
			n = x->x_size_src1;
		else
			n = x->x_size_dst;

		vec_src1 = x->x_beg_mem_src1;
		vec_dst = x->x_beg_mem_dst;
		if(n)
		{
			t_garray *a;

			for(i=0; i<n; i++)
      {
        if(vec_src1[i] == 0.0f)
				  vec_dst[i] = 0.0f;
        else
				  vec_dst[i] += 1.0f;
      }
			outlet_bang(x->x_obj.ob_outlet);
			a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
			garray_redraw(a);
		}
	}
}

static void tab_counter_dst(t_tab_counter *x, t_symbol *s)
{
	x->x_sym_dst = s;
}

static void tab_counter_list(t_tab_counter *x, t_symbol *s, int argc, t_atom *argv)
{
	int beg_src1, beg_dst;
	int i, n;
	int ok_src1, ok_dst;
	t_float *vec_src1, *vec_dst;

	if((argc >= 3) &&
		IS_A_FLOAT(argv,0) &&
		IS_A_FLOAT(argv,1) &&
		IS_A_FLOAT(argv,2))
	{
		beg_src1 = (int)atom_getintarg(0, argc, argv);
		beg_dst = (int)atom_getintarg(1, argc, argv);
		n = (int)atom_getintarg(2, argc, argv);
		if(beg_src1 < 0)
			beg_src1 = 0;
		if(beg_dst < 0)
			beg_dst = 0;
		if(n < 0)
			n = 0;

		ok_src1 = iem_tab_check_arrays(gensym("tab_counter"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, beg_src1+n);
		ok_dst = iem_tab_check_arrays(gensym("tab_counter"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, beg_dst+n);

		if(ok_src1 && ok_dst)
		{
			vec_src1 = x->x_beg_mem_src1 + beg_src1;
			vec_dst = x->x_beg_mem_dst + beg_dst;
			if(n)
			{
				t_garray *a;

				for(i=0; i<n; i++)
        {
          if(vec_src1[i] == 0.0f)
				    vec_dst[i] = 0.0f;
          else
				    vec_dst[i] += 1.0f;
        }
				outlet_bang(x->x_obj.ob_outlet);
				a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
				garray_redraw(a);
			}
		}
	}
	else
	{
		post("tab_counter-ERROR: list need 4 float arguments:");
		post("  source1_offset + destination_offset + number_of_samples_to_add + add_scalar");
	}
}

static void tab_counter_reset(t_tab_counter *x)
{
	int beg_dst;
	int i, n;
	int ok_dst;
	t_float *vec_dst;

	ok_dst = iem_tab_check_arrays(gensym("tab_counter"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, 0);

	if(ok_dst)
	{
		n = x->x_size_dst;
		vec_dst = x->x_beg_mem_dst;
		if(n)
		{
			t_garray *a;

			for(i=0; i<n; i++)
        vec_dst[i] = 0.0f;
			outlet_bang(x->x_obj.ob_outlet);
			a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
			garray_redraw(a);
		}
	}
}

static void tab_counter_free(t_tab_counter *x)
{
}

static void *tab_counter_new(t_symbol *s, int argc, t_atom *argv)
{
	t_tab_counter *x = (t_tab_counter *)pd_new(tab_counter_class);
	t_symbol	*src1, *dst;

	if((argc >= 2) &&
		IS_A_SYMBOL(argv,0) &&
		IS_A_SYMBOL(argv,1))
	{
		src1 = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		dst = (t_symbol *)atom_getsymbolarg(1, argc, argv);
	}
	else if((argc >= 1) &&
		IS_A_SYMBOL(argv,0))
	{
		src1 = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		dst = src1;
	}
	else
	{
		post("tab_counter-ERROR: need 2 symbol arguments:");
		post("  source_array_name + destination_array_name");
		return(0);
	}

	x->x_sym_scr1 = src1;
	x->x_sym_dst = dst;
	outlet_new(&x->x_obj, &s_bang);
	return(x);
}

void tab_counter_setup(void)
{
	tab_counter_class = class_new(gensym("tab_counter"), (t_newmethod)tab_counter_new, (t_method)tab_counter_free,
					 sizeof(t_tab_counter), 0, A_GIMME, 0);
	class_addbang(tab_counter_class, (t_method)tab_counter_bang);
  class_addlist(tab_counter_class, (t_method)tab_counter_list);
	class_addmethod(tab_counter_class, (t_method)tab_counter_src, gensym("src1"), A_DEFSYMBOL, 0);
	class_addmethod(tab_counter_class, (t_method)tab_counter_src, gensym("src"), A_DEFSYMBOL, 0);
	class_addmethod(tab_counter_class, (t_method)tab_counter_dst, gensym("dst"), A_DEFSYMBOL, 0);
	class_addmethod(tab_counter_class, (t_method)tab_counter_reset, gensym("reset"), 0);
	class_sethelpsymbol(tab_counter_class, gensym("iemhelp2/tab_counter-help"));
}

--- NEW FILE: tab_lt.c ---
/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.

iem_tab written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */

#ifdef NT
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif


#include "m_pd.h"
#include "iemlib.h"
#include "iem_tab.h"
#include <math.h>
#include <stdio.h>
#include <string.h>


/* -------------------------- tab_lt ------------------------------ */

typedef struct _tab_lt
{
	t_object	x_obj;
	int				x_size_src1;
	int				x_size_src2;
	int				x_size_dst;
	int				x_offset_src1;
	int				x_offset_src2;
	int				x_offset_dst;
	float			*x_beg_mem_src1;
	float			*x_beg_mem_src2;
	float			*x_beg_mem_dst;
	t_symbol	*x_sym_scr1;
	t_symbol	*x_sym_scr2;
	t_symbol	*x_sym_dst;
} t_tab_lt;

static t_class *tab_lt_class;

static void tab_lt_src1(t_tab_lt *x, t_symbol *s)
{
	x->x_sym_scr1 = s;
}

static void tab_lt_src2(t_tab_lt *x, t_symbol *s)
{
	x->x_sym_scr2 = s;
}

static void tab_lt_dst(t_tab_lt *x, t_symbol *s)
{
	x->x_sym_dst = s;
}

static void tab_lt_bang(t_tab_lt *x)
{
	int i, n;
	int ok_src1, ok_src2, ok_dst;
	t_float *vec_src1, *vec_src2, *vec_dst;

	ok_src1 = iem_tab_check_arrays(gensym("tab_lt"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, 0);
	ok_src2 = iem_tab_check_arrays(gensym("tab_lt"), x->x_sym_scr2, &x->x_beg_mem_src2, &x->x_size_src2, 0);
	ok_dst = iem_tab_check_arrays(gensym("tab_lt"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, 0);

	if(ok_src1 && ok_src2 && ok_dst)
	{
		if(x->x_size_src1 < x->x_size_dst)
			n = x->x_size_src1;
		else
			n = x->x_size_dst;
		if(x->x_size_src2 < n)
			n = x->x_size_src2;

		vec_src1 = x->x_beg_mem_src1;
		vec_src2 = x->x_beg_mem_src2;
		vec_dst = x->x_beg_mem_dst;
		if(n)
		{
			t_garray *a;

			for(i=0; i<n; i++)
      {
        if(vec_src1[i] < vec_src2[i])
				  vec_dst[i] = 1.0f;
        else
				  vec_dst[i] = 0.0f;
      }
			outlet_bang(x->x_obj.ob_outlet);
			a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
			garray_redraw(a);
		}
	}
}

static void tab_lt_list(t_tab_lt *x, t_symbol *s, int argc, t_atom *argv)
{
	int beg_src1, beg_src2, beg_dst;
	int i, n;
	int ok_src1, ok_src2, ok_dst;
	t_float *vec_src1, *vec_src2, *vec_dst;

	if((argc >= 4) &&
		IS_A_FLOAT(argv,0) &&
		IS_A_FLOAT(argv,1) &&
		IS_A_FLOAT(argv,2) &&
		IS_A_FLOAT(argv,3))
	{
		beg_src1 = (int)atom_getintarg(0, argc, argv);
		beg_src2 = (int)atom_getintarg(1, argc, argv);
		beg_dst = (int)atom_getintarg(2, argc, argv);
		n = (int)atom_getintarg(3, argc, argv);
		if(beg_src1 < 0)
			beg_src1 = 0;
		if(beg_src2 < 0)
			beg_src2 = 0;
		if(beg_dst < 0)
			beg_dst = 0;
		if(n < 0)
			n = 0;

		ok_src1 = iem_tab_check_arrays(gensym("tab_lt"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, beg_src1+n);
		ok_src2 = iem_tab_check_arrays(gensym("tab_lt"), x->x_sym_scr2, &x->x_beg_mem_src2, &x->x_size_src2, beg_src2+n);
		ok_dst = iem_tab_check_arrays(gensym("tab_lt"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, beg_dst+n);

		if(ok_src1 && ok_src2 && ok_dst)
		{
			vec_src1 = x->x_beg_mem_src1 + beg_src1;
			vec_src2 = x->x_beg_mem_src2 + beg_src2;
			vec_dst = x->x_beg_mem_dst + beg_dst;
			if(n)
			{
				t_garray *a;

				for(i=0; i<n; i++)
        {
          if(vec_src1[i] < vec_src2[i])
				    vec_dst[i] = 1.0f;
          else
				    vec_dst[i] = 0.0f;
        }
				outlet_bang(x->x_obj.ob_outlet);
				a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
				garray_redraw(a);
			}
		}
	}
	else
	{
		post("tab_lt-ERROR: list need 4 float arguments:");
		post("  source1_offset + source2_offset + destination_offset + number_of_samples_to_compare");
	}
}

static void tab_lt_free(t_tab_lt *x)
{
}

static void *tab_lt_new(t_symbol *s, int argc, t_atom *argv)
{
	t_tab_lt *x = (t_tab_lt *)pd_new(tab_lt_class);
	t_symbol	*src1, *src2, *dst;
	t_float time;

	if((argc >= 3) &&
		IS_A_SYMBOL(argv,0) &&
		IS_A_SYMBOL(argv,1) &&
		IS_A_SYMBOL(argv,2))
	{
		src1 = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		src2 = (t_symbol *)atom_getsymbolarg(1, argc, argv);
		dst = (t_symbol *)atom_getsymbolarg(2, argc, argv);
	}
	else if((argc >= 2) &&
		IS_A_SYMBOL(argv,0) &&
		IS_A_SYMBOL(argv,1))
	{
		src1 = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		dst = src1;
		src2 = (t_symbol *)atom_getsymbolarg(1, argc, argv);
	}
	else
	{
		post("tab_lt-ERROR: need 3 symbols arguments:");
		post("  source1_array_name + source2_array_name + destination_array_name");
		return(0);
	}

	x->x_sym_scr1 = src1;
	x->x_sym_scr2 = src2;
	x->x_sym_dst = dst;
	outlet_new(&x->x_obj, &s_bang);
	return(x);
}

void tab_lt_setup(void)
{
	tab_lt_class = class_new(gensym("tab_lt"), (t_newmethod)tab_lt_new, (t_method)tab_lt_free,
					 sizeof(t_tab_lt), 0, A_GIMME, 0);
	class_addbang(tab_lt_class, (t_method)tab_lt_bang);
	class_addlist(tab_lt_class, (t_method)tab_lt_list);
	class_addmethod(tab_lt_class, (t_method)tab_lt_src1, gensym("src1"), A_DEFSYMBOL, 0);
	class_addmethod(tab_lt_class, (t_method)tab_lt_src2, gensym("src2"), A_DEFSYMBOL, 0);
	class_addmethod(tab_lt_class, (t_method)tab_lt_dst, gensym("dst"), A_DEFSYMBOL, 0);
	class_sethelpsymbol(tab_lt_class, gensym("iemhelp2/tab_lt-help"));
}

--- NEW FILE: tab_sub.c ---
/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.

iem_tab written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */

#ifdef NT
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif


#include "m_pd.h"
#include "iemlib.h"
#include "iem_tab.h"
#include <math.h>
#include <stdio.h>
#include <string.h>


/* -------------------------- tab_sub ------------------------------ */

typedef struct _tab_sub
{
	t_object	x_obj;
	int				x_size_src1;
	int				x_size_src2;
	int				x_size_dst;
	int				x_offset_src1;
	int				x_offset_src2;
	int				x_offset_dst;
	float			*x_beg_mem_src1;
	float			*x_beg_mem_src2;
	float			*x_beg_mem_dst;
	t_symbol	*x_sym_scr1;
	t_symbol	*x_sym_scr2;
	t_symbol	*x_sym_dst;
} t_tab_sub;

static t_class *tab_sub_class;

static void tab_sub_src1(t_tab_sub *x, t_symbol *s)
{
	x->x_sym_scr1 = s;
}

static void tab_sub_src2(t_tab_sub *x, t_symbol *s)
{
	x->x_sym_scr2 = s;
}

static void tab_sub_dst(t_tab_sub *x, t_symbol *s)
{
	x->x_sym_dst = s;
}

static void tab_sub_bang(t_tab_sub *x)
{
	int i, n;
	int ok_src1, ok_src2, ok_dst;
	t_float *vec_src1, *vec_src2, *vec_dst;

	ok_src1 = iem_tab_check_arrays(gensym("tab_sub"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, 0);
	ok_src2 = iem_tab_check_arrays(gensym("tab_sub"), x->x_sym_scr2, &x->x_beg_mem_src2, &x->x_size_src2, 0);
	ok_dst = iem_tab_check_arrays(gensym("tab_sub"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, 0);

	if(ok_src1 && ok_src2 && ok_dst)
	{
		if(x->x_size_src1 < x->x_size_dst)
			n = x->x_size_src1;
		else
			n = x->x_size_dst;
		if(x->x_size_src2 < n)
			n = x->x_size_src2;

		vec_src1 = x->x_beg_mem_src1;
		vec_src2 = x->x_beg_mem_src2;
		vec_dst = x->x_beg_mem_dst;
		if(n)
		{
			t_garray *a;

			for(i=0; i<n; i++)
				vec_dst[i] = vec_src1[i] - vec_src2[i];
			outlet_bang(x->x_obj.ob_outlet);
			a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
			garray_redraw(a);
		}
	}
}

static void tab_sub_list(t_tab_sub *x, t_symbol *s, int argc, t_atom *argv)
{
	int beg_src1, beg_src2, beg_dst;
	int i, n;
	int ok_src1, ok_src2, ok_dst;
	t_float *vec_src1, *vec_src2, *vec_dst;

	if((argc >= 4) &&
		IS_A_FLOAT(argv,0) &&
		IS_A_FLOAT(argv,1) &&
		IS_A_FLOAT(argv,2) &&
		IS_A_FLOAT(argv,3))
	{
		beg_src1 = (int)atom_getintarg(0, argc, argv);
		beg_src2 = (int)atom_getintarg(1, argc, argv);
		beg_dst = (int)atom_getintarg(2, argc, argv);
		n = (int)atom_getintarg(3, argc, argv);
		if(beg_src1 < 0)
			beg_src1 = 0;
		if(beg_src2 < 0)
			beg_src2 = 0;
		if(beg_dst < 0)
			beg_dst = 0;
		if(n < 0)
			n = 0;

		ok_src1 = iem_tab_check_arrays(gensym("tab_sub"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, beg_src1+n);
		ok_src2 = iem_tab_check_arrays(gensym("tab_sub"), x->x_sym_scr2, &x->x_beg_mem_src2, &x->x_size_src2, beg_src2+n);
		ok_dst = iem_tab_check_arrays(gensym("tab_sub"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, beg_dst+n);

		if(ok_src1 && ok_src2 && ok_dst)
		{
			vec_src1 = x->x_beg_mem_src1 + beg_src1;
			vec_src2 = x->x_beg_mem_src2 + beg_src2;
			vec_dst = x->x_beg_mem_dst + beg_dst;
			if(n)
			{
				t_garray *a;

				for(i=0; i<n; i++)
					vec_dst[i] = vec_src1[i] - vec_src2[i];
				outlet_bang(x->x_obj.ob_outlet);
				a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
				garray_redraw(a);
			}
		}
	}
	else
	{
		post("tab_sub-ERROR: list need 4 float arguments:");
		post("  source1_offset + source2_offset + destination_offset + number_of_samples_to_sub");
	}
}

static void tab_sub_free(t_tab_sub *x)
{
}

static void *tab_sub_new(t_symbol *s, int argc, t_atom *argv)
{
	t_tab_sub *x = (t_tab_sub *)pd_new(tab_sub_class);
	t_symbol	*src1, *src2, *dst;
	t_float time;

	if((argc >= 3) &&
		IS_A_SYMBOL(argv,0) &&
		IS_A_SYMBOL(argv,1) &&
		IS_A_SYMBOL(argv,2))
	{
		src1 = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		src2 = (t_symbol *)atom_getsymbolarg(1, argc, argv);
		dst = (t_symbol *)atom_getsymbolarg(2, argc, argv);
	}
	else if((argc >= 2) &&
		IS_A_SYMBOL(argv,0) &&
		IS_A_SYMBOL(argv,1))
	{
		src1 = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		dst = src1;
		src2 = (t_symbol *)atom_getsymbolarg(1, argc, argv);
	}
	else
	{
		post("tab_sub-ERROR: need 3 symbols arguments:");
		post("  source1_array_name + source2_array_name + destination_array_name");
		return(0);
	}

	x->x_sym_scr1 = src1;
	x->x_sym_scr2 = src2;
	x->x_sym_dst = dst;
	outlet_new(&x->x_obj, &s_bang);
	return(x);
}

void tab_sub_setup(void)
{
	tab_sub_class = class_new(gensym("tab_sub"), (t_newmethod)tab_sub_new, (t_method)tab_sub_free,
					 sizeof(t_tab_sub), 0, A_GIMME, 0);
	class_addbang(tab_sub_class, (t_method)tab_sub_bang);
	class_addlist(tab_sub_class, (t_method)tab_sub_list);
	class_addmethod(tab_sub_class, (t_method)tab_sub_src1, gensym("src1"), A_DEFSYMBOL, 0);
	class_addmethod(tab_sub_class, (t_method)tab_sub_src2, gensym("src2"), A_DEFSYMBOL, 0);
	class_addmethod(tab_sub_class, (t_method)tab_sub_dst, gensym("dst"), A_DEFSYMBOL, 0);
	class_sethelpsymbol(tab_sub_class, gensym("iemhelp2/tab_sub-help"));
}

--- NEW FILE: tab_sin.c ---
/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.

iem_tab written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */

#ifdef NT
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif


#include "m_pd.h"
#include "iemlib.h"
#include "iem_tab.h"
#include <math.h>
#include <stdio.h>
#include <string.h>

#define TABDUMTAB1SIZE 256
#define TABDUMTAB2SIZE 1024

static t_float tab_sin_exptab[TABDUMTAB1SIZE], tab_sin_mantissatab[TABDUMTAB2SIZE];

static void init_tab_sin(void)
{
	int i;
	
	for (i=0; i<TABDUMTAB1SIZE; i++)
	{
		t_float f;
		long l = (i ? (i == TABDUMTAB1SIZE-1 ? TABDUMTAB1SIZE-2 : i) : 1)<< 23;

		*(long *)(&f) = l;
		tab_sin_exptab[i] = 1.0f/sqrt(f);	
	}

	for (i=0; i<TABDUMTAB2SIZE; i++)
	{
		t_float f = 1.0f + (1.0f / (t_float)TABDUMTAB2SIZE) * (t_float)i;

		tab_sin_mantissatab[i] = 1.0f / sqrt(f);	
	}
}


/* -------------------------- tab_sin ------------------------------ */

typedef struct _tab_sin
{
	t_object	x_obj;
	int				x_size_src1;
	int				x_size_dst;
	int				x_offset_src1;
	int				x_offset_dst;
	float			*x_beg_mem_src1;
	float			*x_beg_mem_dst;
	t_symbol	*x_sym_scr1;
	t_symbol	*x_sym_dst;
} t_tab_sin;

static t_class *tab_sin_class;

static void tab_sin_src(t_tab_sin *x, t_symbol *s)
{
	x->x_sym_scr1 = s;
}

static void tab_sin_dst(t_tab_sin *x, t_symbol *s)
{
	x->x_sym_dst = s;
}

static void tab_sin_bang(t_tab_sin *x)
{
	int i, n;
	int ok_src, ok_dst;
	t_float *vec_src, *vec_dst;

	ok_src = iem_tab_check_arrays(gensym("tab_sin"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, 0);
	ok_dst = iem_tab_check_arrays(gensym("tab_sin"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, 0);

	if(ok_src && ok_dst)
	{
		if(x->x_size_src1 < x->x_size_dst)
			n = x->x_size_src1;
		else
			n = x->x_size_dst;
		vec_src = x->x_beg_mem_src1;
		vec_dst = x->x_beg_mem_dst;
		if(n)
		{
			t_garray *a;

			while(n--)
			{
				t_float f = *vec_src;
				long l = *(long *)(vec_src++);

				if(f < 0.0f)
					*vec_dst++ = 0.0f;
				else
				{
					t_float g = tab_sin_exptab[(l >> 23) & 0xff] * tab_sin_mantissatab[(l >> 13) & 0x3ff];

					*vec_dst++ = f*g*(1.5f - 0.5f * g * g * f);
				}
			}
			outlet_bang(x->x_obj.ob_outlet);
			a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
			garray_redraw(a);
		}
	}
}

static void tab_sin_list(t_tab_sin *x, t_symbol *s, int argc, t_atom *argv)
{
	int beg_src, beg_dst;
	int i, n;
	int ok_src, ok_dst;
	t_float *vec_src, *vec_dst;

	if((argc >= 3) &&
		IS_A_FLOAT(argv,0) &&
		IS_A_FLOAT(argv,1) &&
		IS_A_FLOAT(argv,2))
	{
		beg_src = (int)atom_getintarg(0, argc, argv);
		beg_dst = (int)atom_getintarg(1, argc, argv);
		n = (int)atom_getintarg(2, argc, argv);
		if(beg_src < 0)
			beg_src = 0;
		if(beg_dst < 0)
			beg_dst = 0;
		if(n < 0)
			n = 0;

		ok_src = iem_tab_check_arrays(gensym("tab_sin"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, beg_src+n);
		ok_dst = iem_tab_check_arrays(gensym("tab_sin"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, beg_dst+n);

		if(ok_src && ok_dst)
		{
			vec_src = x->x_beg_mem_src1 + beg_src;
			vec_dst = x->x_beg_mem_dst + beg_dst;
			if(n)
			{
				t_garray *a;

				while(n--)
				{
					t_float f = *vec_src;
					long l = *(long *)(vec_src++);

					if(f < 0.0f)
						*vec_dst++ = 0.0f;
					else
					{
						t_float g = tab_sin_exptab[(l >> 23) & 0xff] * tab_sin_mantissatab[(l >> 13) & 0x3ff];

						*vec_dst++ = f*g*(1.5f - 0.5f * g * g * f);
					}
				}
				outlet_bang(x->x_obj.ob_outlet);
				a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
				garray_redraw(a);
			}
		}
	}
	else
	{
		post("tab_sin-ERROR: list need 3 float arguments:");
		post("  source_offset + destination_offset + number_of_samples_to_sqrt");
	}
}

static void tab_sin_free(t_tab_sin *x)
{
}

static void *tab_sin_new(t_symbol *s, int argc, t_atom *argv)
{
	t_tab_sin *x = (t_tab_sin *)pd_new(tab_sin_class);
	t_symbol	*src, *dst;

	if((argc >= 2) &&
		IS_A_SYMBOL(argv,0) &&
		IS_A_SYMBOL(argv,1))
	{
		src = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		dst = (t_symbol *)atom_getsymbolarg(1, argc, argv);
	}
	else if((argc >= 1) &&
		IS_A_SYMBOL(argv,0))
	{
		src = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		dst = src;
	}
	else
	{
		post("tab_sin-ERROR: need 2 symbols arguments:");
		post("  source_array_name + destination_array_name");
		return(0);
	}

	x->x_sym_scr1 = src;
	x->x_sym_dst = dst;
	outlet_new(&x->x_obj, &s_bang);
	return(x);
}

void tab_sin_setup(void)
{
	init_tab_sin();
	tab_sin_class = class_new(gensym("tab_sin"), (t_newmethod)tab_sin_new, (t_method)tab_sin_free,
					 sizeof(t_tab_sin), 0, A_GIMME, 0);
	class_addbang(tab_sin_class, (t_method)tab_sin_bang);
	class_addlist(tab_sin_class, (t_method)tab_sin_list);
	class_addmethod(tab_sin_class, (t_method)tab_sin_src, gensym("src"), A_DEFSYMBOL, 0);
	class_addmethod(tab_sin_class, (t_method)tab_sin_src, gensym("src1"), A_DEFSYMBOL, 0);
	class_addmethod(tab_sin_class, (t_method)tab_sin_dst, gensym("dst"), A_DEFSYMBOL, 0);
	class_sethelpsymbol(tab_sin_class, gensym("iemhelp2/tab_sin-help"));
}

--- NEW FILE: tab_complex_inv.c ---
/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.

iem_tab written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */

#ifdef NT
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif


#include "m_pd.h"
#include "iemlib.h"
#include "iem_tab.h"
#include <math.h>
#include <stdio.h>
#include <string.h>


/* -------------------------- tab_complex_inv ------------------------------ */

typedef struct _tab_complex_inv
{
	t_object	x_obj;
	int				x_size_src1_re;
	int				x_size_dst_re;
	int				x_size_src1_im;
	int				x_size_dst_im;
	int				x_offset_src1_re;
	int				x_offset_dst_re;
	int				x_offset_src1_im;
	int				x_offset_dst_im;
	float			*x_beg_mem_src1_re;
	float			*x_beg_mem_dst_re;
	float			*x_beg_mem_src1_im;
	float			*x_beg_mem_dst_im;
	t_symbol	*x_sym_scr1_re;
	t_symbol	*x_sym_dst_re;
	t_symbol	*x_sym_scr1_im;
	t_symbol	*x_sym_dst_im;
} t_tab_complex_inv;

static t_class *tab_complex_inv_class;

static void tab_complex_inv_src1_re(t_tab_complex_inv *x, t_symbol *s)
{
	x->x_sym_scr1_re = s;
}

static void tab_complex_inv_src1_im(t_tab_complex_inv *x, t_symbol *s)
{
	x->x_sym_scr1_im = s;
}

static void tab_complex_inv_dst_re(t_tab_complex_inv *x, t_symbol *s)
{
	x->x_sym_dst_re = s;
}

static void tab_complex_inv_dst_im(t_tab_complex_inv *x, t_symbol *s)
{
	x->x_sym_dst_im = s;
}

static void tab_complex_inv_bang(t_tab_complex_inv *x)
{
	int i, n;
	int ok_src1_re, ok_dst_re;
	int ok_src1_im, ok_dst_im;
	t_float *vec_src1_re, *vec_dst_re;
	t_float *vec_src1_im, *vec_dst_im;

	ok_src1_re = iem_tab_check_arrays(gensym("tab_complex_inv"), x->x_sym_scr1_re, &x->x_beg_mem_src1_re, &x->x_size_src1_re, 0);
	ok_dst_re = iem_tab_check_arrays(gensym("tab_complex_inv"), x->x_sym_dst_re, &x->x_beg_mem_dst_re, &x->x_size_dst_re, 0);
	ok_src1_im = iem_tab_check_arrays(gensym("tab_complex_inv"), x->x_sym_scr1_im, &x->x_beg_mem_src1_im, &x->x_size_src1_im, 0);
	ok_dst_im = iem_tab_check_arrays(gensym("tab_complex_inv"), x->x_sym_dst_im, &x->x_beg_mem_dst_im, &x->x_size_dst_im, 0);

	if(ok_src1_re && ok_dst_re && ok_src1_im && ok_dst_im)
	{
		if(x->x_size_src1_re < x->x_size_dst_re)
			n = x->x_size_src1_re;
		else
			n = x->x_size_dst_re;
		if(x->x_size_src1_im < n)
			n = x->x_size_src1_im;
		if(x->x_size_dst_im < n)
			n = x->x_size_dst_im;

		vec_src1_re = x->x_beg_mem_src1_re;
		vec_dst_re = x->x_beg_mem_dst_re;
		vec_src1_im = x->x_beg_mem_src1_im;
		vec_dst_im = x->x_beg_mem_dst_im;
		if(n)
		{
			t_garray *a;

			for(i=0; i<n; i++)
			{
				t_float re, im, abs;

				re = vec_src1_re[i];
				im = vec_src1_im[i];
				abs = 1.0f / (re*re + im*im);
				vec_dst_re[i] = re*abs;
				vec_dst_im[i] = -im*abs;
			}
			outlet_bang(x->x_obj.ob_outlet);
			a = (t_garray *)pd_findbyclass(x->x_sym_dst_re, garray_class);
			garray_redraw(a);
			a = (t_garray *)pd_findbyclass(x->x_sym_dst_im, garray_class);
			garray_redraw(a);
		}
	}
}

static void tab_complex_inv_list(t_tab_complex_inv *x, t_symbol *s, int argc, t_atom *argv)
{
	int i, n;
	int beg_src1_re, beg_dst_re;
	int beg_src1_im, beg_dst_im;
	int ok_src1_re, ok_dst_re;
	int ok_src1_im, ok_dst_im;
	t_float *vec_src1_re, *vec_dst_re;
	t_float *vec_src1_im, *vec_dst_im;

	if((argc >= 5) &&
		IS_A_FLOAT(argv,0) &&
		IS_A_FLOAT(argv,1) &&
		IS_A_FLOAT(argv,2) &&
		IS_A_FLOAT(argv,3) &&
		IS_A_FLOAT(argv,4))
	{
		beg_src1_re = (int)atom_getintarg(0, argc, argv);
		beg_src1_im = (int)atom_getintarg(1, argc, argv);
		beg_dst_re = (int)atom_getintarg(2, argc, argv);
		beg_dst_im = (int)atom_getintarg(3, argc, argv);
		n = (int)atom_getintarg(4, argc, argv);
		if(beg_src1_re < 0)
			beg_src1_re = 0;
		if(beg_dst_re < 0)
			beg_dst_re = 0;
		if(beg_src1_im < 0)
			beg_src1_im = 0;
		if(beg_dst_im < 0)
			beg_dst_im = 0;
		if(n < 0)
			n = 0;

		ok_src1_re = iem_tab_check_arrays(gensym("tab_complex_inv"), x->x_sym_scr1_re, &x->x_beg_mem_src1_re, &x->x_size_src1_re, beg_src1_re+n);
		ok_dst_re = iem_tab_check_arrays(gensym("tab_complex_inv"), x->x_sym_dst_re, &x->x_beg_mem_dst_re, &x->x_size_dst_re, beg_dst_re+n);
		ok_src1_im = iem_tab_check_arrays(gensym("tab_complex_inv"), x->x_sym_scr1_im, &x->x_beg_mem_src1_im, &x->x_size_src1_im, beg_src1_im+n);
		ok_dst_im = iem_tab_check_arrays(gensym("tab_complex_inv"), x->x_sym_dst_im, &x->x_beg_mem_dst_im, &x->x_size_dst_im, beg_dst_im+n);

		if(ok_src1_re && ok_dst_re && ok_src1_im && ok_dst_im)
		{
			vec_src1_re = x->x_beg_mem_src1_re + beg_src1_re;
			vec_dst_re = x->x_beg_mem_dst_re + beg_dst_re;
			vec_src1_im = x->x_beg_mem_src1_im + beg_src1_im;
			vec_dst_im = x->x_beg_mem_dst_im + beg_dst_im;

			if(n)
			{
				t_garray *a;

				for(i=0; i<n; i++)
				{
					t_float re, im, abs;

					re = vec_src1_re[i];
					im = vec_src1_im[i];
					abs = 1.0f / (re*re + im*im);
					vec_dst_re[i] = re*abs;
					vec_dst_im[i] = -im*abs;
				}
				outlet_bang(x->x_obj.ob_outlet);
				a = (t_garray *)pd_findbyclass(x->x_sym_dst_re, garray_class);
				garray_redraw(a);
				a = (t_garray *)pd_findbyclass(x->x_sym_dst_im, garray_class);
				garray_redraw(a);
			}
		}
	}
	else
	{
		post("tab_complex_inv-ERROR: list need 5 float arguments:");
		post("  source1_real_offset + source1_imag_offset + destination_real_offset + destination_imag_offset + number_of_samples_to_complex_mul");
	}
}

static void tab_complex_inv_free(t_tab_complex_inv *x)
{
}

static void *tab_complex_inv_new(t_symbol *s, int argc, t_atom *argv)
{
	t_tab_complex_inv *x = (t_tab_complex_inv *)pd_new(tab_complex_inv_class);
	t_symbol	*src1_re, *src2_re, *dst_re, *src1_im, *src2_im, *dst_im;
	t_float time;

	if((argc >= 4) &&
		IS_A_SYMBOL(argv,0) &&
		IS_A_SYMBOL(argv,1) &&
		IS_A_SYMBOL(argv,2) &&
		IS_A_SYMBOL(argv,3))
	{
		src1_re = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		src1_im = (t_symbol *)atom_getsymbolarg(1, argc, argv);
		dst_re = (t_symbol *)atom_getsymbolarg(2, argc, argv);
		dst_im = (t_symbol *)atom_getsymbolarg(3, argc, argv);
	}
	else if((argc >= 2) &&
		IS_A_SYMBOL(argv,0) &&
		IS_A_SYMBOL(argv,1))
	{
		src1_re = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		src1_im = (t_symbol *)atom_getsymbolarg(1, argc, argv);
		dst_re = src1_re;
		dst_im = src1_im;
	}
	else
	{
		post("tab_complex_inv-ERROR: need 4 symbols arguments:");
		post("  source1_real_array_name + source1_imag_array_name + destination_real_array_name + destination_imag_array_name");
		return(0);
	}

	x->x_sym_scr1_re = src1_re;
	x->x_sym_scr1_im = src1_im;
	x->x_sym_dst_re = dst_re;
	x->x_sym_dst_im = dst_im;
	outlet_new(&x->x_obj, &s_bang);
	return(x);
}

void tab_complex_inv_setup(void)
{
	tab_complex_inv_class = class_new(gensym("tab_complex_inv"), (t_newmethod)tab_complex_inv_new, (t_method)tab_complex_inv_free,
					 sizeof(t_tab_complex_inv), 0, A_GIMME, 0);
	class_addbang(tab_complex_inv_class, (t_method)tab_complex_inv_bang);
	class_addlist(tab_complex_inv_class, (t_method)tab_complex_inv_list);
	class_addmethod(tab_complex_inv_class, (t_method)tab_complex_inv_src1_re, gensym("src1_re"), A_DEFSYMBOL, 0);
	class_addmethod(tab_complex_inv_class, (t_method)tab_complex_inv_dst_re, gensym("dst_re"), A_DEFSYMBOL, 0);
	class_addmethod(tab_complex_inv_class, (t_method)tab_complex_inv_src1_im, gensym("src1_im"), A_DEFSYMBOL, 0);
	class_addmethod(tab_complex_inv_class, (t_method)tab_complex_inv_dst_im, gensym("dst_im"), A_DEFSYMBOL, 0);
	class_sethelpsymbol(tab_complex_inv_class, gensym("iemhelp2/tab_complex_inv-help"));
}

--- NEW FILE: tab_add.c ---
/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.

iem_tab written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */

#ifdef NT
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif


#include "m_pd.h"
#include "iemlib.h"
#include "iem_tab.h"
#include <math.h>
#include <stdio.h>
#include <string.h>


/* -------------------------- tab_add ------------------------------ */

typedef struct _tab_add
{
	t_object	x_obj;
	int				x_size_src1;
	int				x_size_src2;
	int				x_size_dst;
	int				x_offset_src1;
	int				x_offset_src2;
	int				x_offset_dst;
	float			*x_beg_mem_src1;
	float			*x_beg_mem_src2;
	float			*x_beg_mem_dst;
	t_symbol	*x_sym_scr1;
	t_symbol	*x_sym_scr2;
	t_symbol	*x_sym_dst;
} t_tab_add;

static t_class *tab_add_class;

static void tab_add_src1(t_tab_add *x, t_symbol *s)
{
	x->x_sym_scr1 = s;
}

static void tab_add_src2(t_tab_add *x, t_symbol *s)
{
	x->x_sym_scr2 = s;
}

static void tab_add_dst(t_tab_add *x, t_symbol *s)
{
	x->x_sym_dst = s;
}

static void tab_add_bang(t_tab_add *x)
{
	int i, n;
	int ok_src1, ok_src2, ok_dst;
	t_float *vec_src1, *vec_src2, *vec_dst;

	ok_src1 = iem_tab_check_arrays(gensym("tab_add"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, 0);
	ok_src2 = iem_tab_check_arrays(gensym("tab_add"), x->x_sym_scr2, &x->x_beg_mem_src2, &x->x_size_src2, 0);
	ok_dst = iem_tab_check_arrays(gensym("tab_add"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, 0);

	if(ok_src1 && ok_src2 && ok_dst)
	{
		if(x->x_size_src1 < x->x_size_dst)
			n = x->x_size_src1;
		else
			n = x->x_size_dst;
		if(x->x_size_src2 < n)
			n = x->x_size_src2;

		vec_src1 = x->x_beg_mem_src1;
		vec_src2 = x->x_beg_mem_src2;
		vec_dst = x->x_beg_mem_dst;
		if(n)
		{
			t_garray *a;

			for(i=0; i<n; i++)
				vec_dst[i] = vec_src1[i] + vec_src2[i];
			outlet_bang(x->x_obj.ob_outlet);
			a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
			garray_redraw(a);
		}
	}
}

static void tab_add_list(t_tab_add *x, t_symbol *s, int argc, t_atom *argv)
{
	int beg_src1, beg_src2, beg_dst;
	int i, n;
	int ok_src1, ok_src2, ok_dst;
	t_float *vec_src1, *vec_src2, *vec_dst;

	if((argc >= 4) &&
		IS_A_FLOAT(argv,0) &&
		IS_A_FLOAT(argv,1) &&
		IS_A_FLOAT(argv,2) &&
		IS_A_FLOAT(argv,3))
	{
		beg_src1 = (int)atom_getintarg(0, argc, argv);
		beg_src2 = (int)atom_getintarg(1, argc, argv);
		beg_dst = (int)atom_getintarg(2, argc, argv);
		n = (int)atom_getintarg(3, argc, argv);
		if(beg_src1 < 0)
			beg_src1 = 0;
		if(beg_src2 < 0)
			beg_src2 = 0;
		if(beg_dst < 0)
			beg_dst = 0;
		if(n < 0)
			n = 0;

		ok_src1 = iem_tab_check_arrays(gensym("tab_add"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, beg_src1+n);
		ok_src2 = iem_tab_check_arrays(gensym("tab_add"), x->x_sym_scr2, &x->x_beg_mem_src2, &x->x_size_src2, beg_src2+n);
		ok_dst = iem_tab_check_arrays(gensym("tab_add"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, beg_dst+n);

		if(ok_src1 && ok_src2 && ok_dst)
		{
			vec_src1 = x->x_beg_mem_src1 + beg_src1;
			vec_src2 = x->x_beg_mem_src2 + beg_src2;
			vec_dst = x->x_beg_mem_dst + beg_dst;
			if(n)
			{
				t_garray *a;

				for(i=0; i<n; i++)
					vec_dst[i] = vec_src1[i] + vec_src2[i];
				outlet_bang(x->x_obj.ob_outlet);
				a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
				garray_redraw(a);
			}
		}
	}
	else
	{
		post("tab_add-ERROR: list need 4 float arguments:");
		post("  source1_offset + source2_offset + destination_offset + number_of_samples_to_add");
	}
}

static void tab_add_free(t_tab_add *x)
{
}

static void *tab_add_new(t_symbol *s, int argc, t_atom *argv)
{
	t_tab_add *x = (t_tab_add *)pd_new(tab_add_class);
	t_symbol	*src1, *src2, *dst;
	t_float time;

	if((argc >= 3) &&
		IS_A_SYMBOL(argv,0) &&
		IS_A_SYMBOL(argv,1) &&
		IS_A_SYMBOL(argv,2))
	{
		src1 = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		src2 = (t_symbol *)atom_getsymbolarg(1, argc, argv);
		dst = (t_symbol *)atom_getsymbolarg(2, argc, argv);
	}
	else if((argc >= 2) &&
		IS_A_SYMBOL(argv,0) &&
		IS_A_SYMBOL(argv,1))
	{
		src1 = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		dst = src1;
		src2 = (t_symbol *)atom_getsymbolarg(1, argc, argv);
	}
	else
	{
		post("tab_add-ERROR: need 3 symbols arguments:");
		post("  source1_array_name + source2_array_name + destination_array_name");
		return(0);
	}

	x->x_sym_scr1 = src1;
	x->x_sym_scr2 = src2;
	x->x_sym_dst = dst;
	outlet_new(&x->x_obj, &s_bang);
	return(x);
}

void tab_add_setup(void)
{
	tab_add_class = class_new(gensym("tab_add"), (t_newmethod)tab_add_new, (t_method)tab_add_free,
					 sizeof(t_tab_add), 0, A_GIMME, 0);
	class_addbang(tab_add_class, (t_method)tab_add_bang);
	class_addlist(tab_add_class, (t_method)tab_add_list);
	class_addmethod(tab_add_class, (t_method)tab_add_src1, gensym("src1"), A_DEFSYMBOL, 0);
	class_addmethod(tab_add_class, (t_method)tab_add_src2, gensym("src2"), A_DEFSYMBOL, 0);
	class_addmethod(tab_add_class, (t_method)tab_add_dst, gensym("dst"), A_DEFSYMBOL, 0);
	class_sethelpsymbol(tab_add_class, gensym("iemhelp2/tab_add-help"));
}

--- NEW FILE: tab_le_scalar.c ---
/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.

iem_tab written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */

#ifdef NT
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif


#include "m_pd.h"
#include "iemlib.h"
#include "iem_tab.h"
#include <math.h>
#include <stdio.h>
#include <string.h>


/* -------------------------- tab_le_scalar ------------------------------ */

typedef struct _tab_le_scalar
{
	t_object	x_obj;
	int				x_size_src1;
	int				x_size_dst;
	int				x_offset_src1;
	int				x_offset_dst;
	float			*x_beg_mem_src1;
	float			*x_beg_mem_dst;
	t_symbol	*x_sym_scr1;
	t_symbol	*x_sym_dst;
} t_tab_le_scalar;

static t_class *tab_le_scalar_class;

static void tab_le_scalar_src(t_tab_le_scalar *x, t_symbol *s)
{
	x->x_sym_scr1 = s;
}

static void tab_le_scalar_float(t_tab_le_scalar *x, t_floatarg compare)
{
	int i, n;
	int ok_src1, ok_dst;
	t_float *vec_src1, *vec_dst;

	ok_src1 = iem_tab_check_arrays(gensym("tab_le_scalar"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, 0);
	ok_dst = iem_tab_check_arrays(gensym("tab_le_scalar"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, 0);

	if(ok_src1 && ok_dst)
	{
		if(x->x_size_src1 < x->x_size_dst)
			n = x->x_size_src1;
		else
			n = x->x_size_dst;

		vec_src1 = x->x_beg_mem_src1;
		vec_dst = x->x_beg_mem_dst;
		if(n)
		{
			t_garray *a;

			for(i=0; i<n; i++)
      {
        if(vec_src1[i] <= compare)
				  vec_dst[i] = 1.0f;
        else
				  vec_dst[i] = 0.0f;
      }
			outlet_bang(x->x_obj.ob_outlet);
			a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
			garray_redraw(a);
		}
	}
}

static void tab_le_scalar_dst(t_tab_le_scalar *x, t_symbol *s)
{
	x->x_sym_dst = s;
}

static void tab_le_scalar_list(t_tab_le_scalar *x, t_symbol *s, int argc, t_atom *argv)
{
	int beg_src1, beg_dst;
	int i, n;
	int ok_src1, ok_dst;
	t_float *vec_src1, *vec_dst, compare;

	if((argc >= 4) &&
		IS_A_FLOAT(argv,0) &&
		IS_A_FLOAT(argv,1) &&
		IS_A_FLOAT(argv,2) &&
		IS_A_FLOAT(argv,3))
	{
		beg_src1 = (int)atom_getintarg(0, argc, argv);
		beg_dst = (int)atom_getintarg(1, argc, argv);
		n = (int)atom_getintarg(2, argc, argv);
		compare = (t_float)atom_getfloatarg(3, argc, argv);
		if(beg_src1 < 0)
			beg_src1 = 0;
		if(beg_dst < 0)
			beg_dst = 0;
		if(n < 0)
			n = 0;

		ok_src1 = iem_tab_check_arrays(gensym("tab_le_scalar"), x->x_sym_scr1, &x->x_beg_mem_src1, &x->x_size_src1, beg_src1+n);
		ok_dst = iem_tab_check_arrays(gensym("tab_le_scalar"), x->x_sym_dst, &x->x_beg_mem_dst, &x->x_size_dst, beg_dst+n);

		if(ok_src1 && ok_dst)
		{
			vec_src1 = x->x_beg_mem_src1 + beg_src1;
			vec_dst = x->x_beg_mem_dst + beg_dst;
			if(n)
			{
				t_garray *a;

				for(i=0; i<n; i++)
        {
          if(vec_src1[i] <= compare)
				    vec_dst[i] = 1.0f;
          else
				    vec_dst[i] = 0.0f;
        }
				outlet_bang(x->x_obj.ob_outlet);
				a = (t_garray *)pd_findbyclass(x->x_sym_dst, garray_class);
				garray_redraw(a);
			}
		}
	}
	else
	{
		post("tab_le_scalar-ERROR: list need 4 float arguments:");
		post("  source1_offset + destination_offset + number_of_samples_to_compare + compare_scalar");
  }
}

static void tab_le_scalar_free(t_tab_le_scalar *x)
{
}

static void *tab_le_scalar_new(t_symbol *s, int argc, t_atom *argv)
{
	t_tab_le_scalar *x = (t_tab_le_scalar *)pd_new(tab_le_scalar_class);
	t_symbol	*src1, *dst;

	if((argc >= 2) &&
		IS_A_SYMBOL(argv,0) &&
		IS_A_SYMBOL(argv,1))
	{
		src1 = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		dst = (t_symbol *)atom_getsymbolarg(1, argc, argv);
	}
	else if((argc >= 1) &&
		IS_A_SYMBOL(argv,0))
	{
		src1 = (t_symbol *)atom_getsymbolarg(0, argc, argv);
		dst = src1;
	}
	else
	{
		post("tab_le_scalar-ERROR: need 2 symbol arguments:");
		post("  source_array_name + destination_array_name");
		return(0);
	}

	x->x_sym_scr1 = src1;
	x->x_sym_dst = dst;
	outlet_new(&x->x_obj, &s_bang);
	return(x);
}

void tab_le_scalar_setup(void)
{
	tab_le_scalar_class = class_new(gensym("tab_le_scalar"), (t_newmethod)tab_le_scalar_new, (t_method)tab_le_scalar_free,
					 sizeof(t_tab_le_scalar), 0, A_GIMME, 0);
	class_addfloat(tab_le_scalar_class, (t_method)tab_le_scalar_float);
	class_addlist(tab_le_scalar_class, (t_method)tab_le_scalar_list);
	class_addmethod(tab_le_scalar_class, (t_method)tab_le_scalar_src, gensym("src1"), A_DEFSYMBOL, 0);
	class_addmethod(tab_le_scalar_class, (t_method)tab_le_scalar_src, gensym("src"), A_DEFSYMBOL, 0);
	class_addmethod(tab_le_scalar_class, (t_method)tab_le_scalar_dst, gensym("dst"), A_DEFSYMBOL, 0);
	class_sethelpsymbol(tab_le_scalar_class, gensym("iemhelp2/tab_le_scalar-help"));
}





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