initial check insvn2git-root

svn path=/trunk/externals/iem/iem_tab/; revision=4683

1 files changed, 206 insertions, 0 deletions

diff --git a/src/tab_lt.c b/src/tab_lt.c
new file mode 100644
index 0000000..f3a4e6c
--- /dev/null
+++ b/src/tab_lt.c
@@ -0,0 +1,206 @@
+/* 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"));
+}