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-rw-r--r--pd/extra/lrshift~/lrshift~.c74
-rw-r--r--pd/extra/lrshift~/makefile97
2 files changed, 171 insertions, 0 deletions
diff --git a/pd/extra/lrshift~/lrshift~.c b/pd/extra/lrshift~/lrshift~.c
new file mode 100644
index 00000000..285696e2
--- /dev/null
+++ b/pd/extra/lrshift~/lrshift~.c
@@ -0,0 +1,74 @@
+#include "m_pd.h"
+
+/* ------------------------ lrshift~ ----------------------------- */
+
+static t_class *lrshift_tilde_class;
+
+typedef struct _lrshift_tilde
+{
+ t_object x_obj;
+ int x_n;
+} t_lrshift_tilde;
+
+static t_int *leftshift_perform(t_int *w)
+{
+ t_float *in = (t_float *)(w[1]);
+ t_float *out= (t_float *)(w[2]);
+ int n = (int)(w[3]);
+ int shift = (int)(w[4]);
+ in += shift;
+ n -= shift;
+ while (n--)
+ *out++ = *in++;
+ while (shift--)
+ *out++ = 0;
+ return (w+5);
+}
+
+static t_int *rightshift_perform(t_int *w)
+{
+ t_float *in = (t_float *)(w[1]);
+ t_float *out= (t_float *)(w[2]);
+ int n = (int)(w[3]);
+ int shift = (int)(w[4]);
+ n -= shift;
+ in -= shift;
+ while (n--)
+ *--out = *--in;
+ while (shift--)
+ *--out = 0;
+ return (w+5);
+}
+
+static void lrshift_tilde_dsp(t_lrshift_tilde *x, t_signal **sp)
+{
+ int n = sp[0]->s_n;
+ int shift = x->x_n;
+ if (shift > n)
+ shift = n;
+ if (shift < -n)
+ shift = -n;
+ if (shift < 0)
+ dsp_add(rightshift_perform, 4,
+ sp[0]->s_vec + n, sp[1]->s_vec + n, n, -shift);
+ else dsp_add(leftshift_perform, 4,
+ sp[0]->s_vec, sp[1]->s_vec, n, shift);
+}
+
+static void *lrshift_tilde_new(t_floatarg f)
+{
+ t_lrshift_tilde *x = (t_lrshift_tilde *)pd_new(lrshift_tilde_class);
+ x->x_n = f;
+ outlet_new(&x->x_obj, gensym("signal"));
+ return (x);
+}
+
+void lrshift_tilde_setup(void)
+{
+ lrshift_tilde_class = class_new(gensym("lrshift~"),
+ (t_newmethod)lrshift_tilde_new, 0, sizeof(t_lrshift_tilde), 0,
+ A_DEFFLOAT, 0);
+ class_addmethod(lrshift_tilde_class, nullfn, gensym("signal"), 0);
+ class_addmethod(lrshift_tilde_class, (t_method)lrshift_tilde_dsp,
+ gensym("dsp"), 0);
+}
diff --git a/pd/extra/lrshift~/makefile b/pd/extra/lrshift~/makefile
new file mode 100644
index 00000000..99c1f83c
--- /dev/null
+++ b/pd/extra/lrshift~/makefile
@@ -0,0 +1,97 @@
+NAME=lrshift~
+CSYM=lrshift_tilde
+
+current: pd_linux
+
+# ----------------------- NT -----------------------
+
+pd_nt: $(NAME).dll
+
+.SUFFIXES: .dll
+
+PDNTCFLAGS = /W3 /WX /DNT /DPD /nologo
+VC="C:\Program Files\Microsoft Visual Studio\Vc98"
+
+PDNTINCLUDE = /I. /I\tcl\include /I\ftp\pd\src /I$(VC)\include
+
+PDNTLDIR = $(VC)\lib
+PDNTLIB = $(PDNTLDIR)\libc.lib \
+ $(PDNTLDIR)\oldnames.lib \
+ $(PDNTLDIR)\kernel32.lib \
+ \ftp\pd\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 -f $*.o ../$*.pd_linux
+ ln -s $*.pd_linux ..
+
+# ----------------------- 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 = -fPIC -DPD -O2 -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 $*.o ../$*.pd_linux
+ ln -s $*/$*.pd_linux ..
+
+# ----------------------- 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 $*.o ../$*.pd_darwin
+ ln -s $*/$*.pd_darwin ..
+
+# ----------------------------------------------------------
+
+clean:
+ rm -f *.o *.pd_* so_locations