From 2b41ff8d01772ca760721894fd53b76d5818655d Mon Sep 17 00:00:00 2001
From: Tim Blechmann <timblech@users.sourceforge.net>
Date: Sun, 1 Jan 2006 18:39:19 +0000
Subject: adding error function

svn path=/trunk/externals/tb/; revision=4345
---
 erf~/erf~.c   | 64 ++++++++++++++++++++++++++++++++++++++++
 erf~/makefile | 94 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 158 insertions(+)
 create mode 100644 erf~/erf~.c
 create mode 100644 erf~/makefile

diff --git a/erf~/erf~.c b/erf~/erf~.c
new file mode 100644
index 0000000..2f59212
--- /dev/null
+++ b/erf~/erf~.c
@@ -0,0 +1,64 @@
+/* 
+ * 
+ * Error function for pd
+ * Copyright (C) 2006 Tim Blechmann
+ * 
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include "m_pd.h"
+#include "math.h"
+
+static t_class *erf_class;
+
+typedef struct _erf
+{
+    t_object x_obj;
+    float x_f;
+} t_erf;
+
+static void *erf_new(void)
+{
+    t_erf *x = (t_erf *)pd_new(erf_class);
+    outlet_new(&x->x_obj, gensym("signal"));
+    x->x_f = 0;
+    return (x);
+}
+
+static t_int *erf_perform(t_int *w)
+{
+    t_float *in = (t_float *)(w[1]);
+    t_float *out = (t_float *)(w[2]);
+    int n = (int)(w[3]);
+
+    while (n--)
+        *out++ = erff(*in++);
+
+    return w+4;
+}
+
+static void erf_dsp(t_erf *x, t_signal **sp)
+{
+    dsp_add(erf_perform, 3, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
+}
+
+void erf_tilde_setup(void)
+{
+    erf_class = class_new(gensym("erf~"), (t_newmethod)erf_new, 0,
+        sizeof(t_erf), 0, A_DEFFLOAT, 0);
+    CLASS_MAINSIGNALIN(erf_class, t_erf, x_f);
+    class_addmethod(erf_class, (t_method)erf_dsp, gensym("dsp"), 0);
+}
diff --git a/erf~/makefile b/erf~/makefile
new file mode 100644
index 0000000..a4c8ed4
--- /dev/null
+++ b/erf~/makefile
@@ -0,0 +1,94 @@
+NAME=erf~
+CSYM=erf~
+
+current: pd_linux
+
+# ----------------------- NT -----------------------
+
+pd_nt: $(NAME).dll
+
+.SUFFIXES: .dll
+
+PDNTCFLAGS = /W3 /WX /DNT /DPD /nologo
+VC="C:\Program Files\Microsoft Visual Studio\Vc98"
+
+PDNTINCLUDE = /I. /I..\..\src /I$(VC)\include
+
+PDNTLDIR = $(VC)\lib
+PDNTLIB = $(PDNTLDIR)\libc.lib \
+	$(PDNTLDIR)\oldnames.lib \
+	$(PDNTLDIR)\kernel32.lib \
+	..\..\bin\pd.lib 
+
+.c.dll:
+	cl $(PDNTCFLAGS) $(PDNTINCLUDE) /c $*.c
+	link /dll /export:$(CSYM)_setup $*.obj $(PDNTLIB)
+
+# ----------------------- IRIX 5.x -----------------------
+
+pd_irix5: $(NAME).pd_irix5
+
+.SUFFIXES: .pd_irix5
+
+SGICFLAGS5 = -o32 -DPD -DUNIX -DIRIX -O2
+
+SGIINCLUDE =  -I../../src
+
+.c.pd_irix5:
+	$(CC) $(SGICFLAGS5) $(SGIINCLUDE) -o $*.o -c $*.c
+	ld -elf -shared -rdata_shared -o $*.pd_irix5 $*.o
+	rm $*.o
+
+# ----------------------- IRIX 6.x -----------------------
+
+pd_irix6: $(NAME).pd_irix6
+
+.SUFFIXES: .pd_irix6
+
+SGICFLAGS6 = -n32 -DPD -DUNIX -DIRIX -DN32 -woff 1080,1064,1185 \
+	-OPT:roundoff=3 -OPT:IEEE_arithmetic=3 -OPT:cray_ivdep=true \
+	-Ofast=ip32
+
+.c.pd_irix6:
+	$(CC) $(SGICFLAGS6) $(SGIINCLUDE) -o $*.o -c $*.c
+	ld -n32 -IPA -shared -rdata_shared -o $*.pd_irix6 $*.o
+	rm $*.o
+
+# ----------------------- LINUX i386 -----------------------
+
+pd_linux: $(NAME).pd_linux
+
+.SUFFIXES: .pd_linux
+
+LINUXCFLAGS = -DPD -O2 -fPIC -funroll-loops -fomit-frame-pointer \
+    -Wall -W -Wshadow -Wstrict-prototypes -Werror \
+    -Wno-unused -Wno-parentheses -Wno-switch
+
+LINUXINCLUDE =  -I../../src
+
+LSTRIP = strip --strip-unneeded -R .note -R .comment
+
+.c.pd_linux:
+	cc $(LINUXCFLAGS) $(LINUXINCLUDE) -o $*.o -c $*.c
+	cc -Wl,-export_dynamic --shared -o $*.pd_linux $*.o -lm
+	$(LSTRIP) $*.pd_linux
+	rm -f $*.o
+
+# ----------------------- Mac OSX -----------------------
+
+pd_darwin: $(NAME).pd_darwin
+
+.SUFFIXES: .pd_darwin
+
+DARWINCFLAGS = -DPD -O2 -Wall -W -Wshadow -Wstrict-prototypes \
+    -Wno-unused -Wno-parentheses -Wno-switch
+
+.c.pd_darwin:
+	$(CC) $(DARWINCFLAGS) $(LINUXINCLUDE) -o $*.o -c $*.c
+	$(CC) -bundle -undefined suppress -flat_namespace -o $*.pd_darwin $*.o 
+	rm -f $*.o
+
+# ----------------------------------------------------------
+
+clean:
+	rm -f *.o *.pd_* so_locations
-- 
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