This commit was generated by cvs2svn to compensate for changes in r2003,

which included commits to RCS files with non-trunk default branches.

svn path=/trunk/externals/tb/; revision=2004

5 files changed, 762 insertions, 0 deletions

diff --git a/volctl~/gpl.txt b/volctl~/gpl.txt
new file mode 100644
index 0000000..5ea29a7
--- /dev/null
+++ b/volctl~/gpl.txt
@@ -0,0 +1,346 @@
+		    GNU GENERAL PUBLIC LICENSE
+		       Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.
+                       59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+			    Preamble
+ 
+  The licenses for most software are designed to take away your
+freedom to share and change it.  By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users.  This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it.  (Some other Free Software Foundation software is covered by
+the GNU Library General Public License instead.)  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+this service if you wish), that you receive source code or can get it
+if you want it, that you can change the software or use pieces of it
+in new free programs; and that you know you can do these things.
+
+  To protect your rights, we need to make restrictions that forbid
+anyone to deny you these rights or to ask you to surrender the rights.
+These restrictions translate to certain responsibilities for you if you
+distribute copies of the software, or if you modify it.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must give the recipients all the rights that
+you have.  You must make sure that they, too, receive or can get the
+source code.  And you must show them these terms so they know their
+rights.
+
+  We protect your rights with two steps: (1) copyright the software, and
+(2) offer you this license which gives you legal permission to copy,
+distribute and/or modify the software.
+
+  Also, for each author's protection and ours, we want to make certain
+that everyone understands that there is no warranty for this free
+software.  If the software is modified by someone else and passed on, we
+want its recipients to know that what they have is not the original, so
+that any problems introduced by others will not reflect on the original
+authors' reputations.
+
+  Finally, any free program is threatened constantly by software
+patents.  We wish to avoid the danger that redistributors of a free
+program will individually obtain patent licenses, in effect making the
+program proprietary.  To prevent this, we have made it clear that any
+patent must be licensed for everyone's free use or not licensed at all.
+
+  The precise terms and conditions for copying, distribution and
+modification follow.
+
+
+		    GNU GENERAL PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. This License applies to any program or other work which contains
+a notice placed by the copyright holder saying it may be distributed
+under the terms of this General Public License.  The "Program", below,
+refers to any such program or work, and a "work based on the Program"
+means either the Program or any derivative work under copyright law:
+that is to say, a work containing the Program or a portion of it,
+either verbatim or with modifications and/or translated into another
+language.  (Hereinafter, translation is included without limitation in
+the term "modification".)  Each licensee is addressed as "you".
+
+Activities other than copying, distribution and modification are not
+covered by this License; they are outside its scope.  The act of
+running the Program is not restricted, and the output from the Program
+is covered only if its contents constitute a work based on the
+Program (independent of having been made by running the Program).
+Whether that is true depends on what the Program does.
+
+  1. You may copy and distribute verbatim copies of the Program's
+source code as you receive it, in any medium, provided that you
+conspicuously and appropriately publish on each copy an appropriate
+copyright notice and disclaimer of warranty; keep intact all the
+notices that refer to this License and to the absence of any warranty;
+and give any other recipients of the Program a copy of this License
+along with the Program.
+
+You may charge a fee for the physical act of transferring a copy, and
+you may at your option offer warranty protection in exchange for a fee.
+
+  2. You may modify your copy or copies of the Program or any portion
+of it, thus forming a work based on the Program, and copy and
+distribute such modifications or work under the terms of Section 1
+above, provided that you also meet all of these conditions:
+
+    a) You must cause the modified files to carry prominent notices
+    stating that you changed the files and the date of any change.
+
+    b) You must cause any work that you distribute or publish, that in
+    whole or in part contains or is derived from the Program or any
+    part thereof, to be licensed as a whole at no charge to all third
+    parties under the terms of this License.
+
+    c) If the modified program normally reads commands interactively
+    when run, you must cause it, when started running for such
+    interactive use in the most ordinary way, to print or display an
+    announcement including an appropriate copyright notice and a
+    notice that there is no warranty (or else, saying that you provide
+    a warranty) and that users may redistribute the program under
+    these conditions, and telling the user how to view a copy of this
+    License.  (Exception: if the Program itself is interactive but
+    does not normally print such an announcement, your work based on
+    the Program is not required to print an announcement.)
+
+
+These requirements apply to the modified work as a whole.  If
+identifiable sections of that work are not derived from the Program,
+and can be reasonably considered independent and separate works in
+themselves, then this License, and its terms, do not apply to those
+sections when you distribute them as separate works.  But when you
+distribute the same sections as part of a whole which is a work based
+on the Program, the distribution of the whole must be on the terms of
+this License, whose permissions for other licensees extend to the
+entire whole, and thus to each and every part regardless of who wrote it.
+
+Thus, it is not the intent of this section to claim rights or contest
+your rights to work written entirely by you; rather, the intent is to
+exercise the right to control the distribution of derivative or
+collective works based on the Program.
+
+In addition, mere aggregation of another work not based on the Program
+with the Program (or with a work based on the Program) on a volume of
+a storage or distribution medium does not bring the other work under
+the scope of this License.
+
+  3. You may copy and distribute the Program (or a work based on it,
+under Section 2) in object code or executable form under the terms of
+Sections 1 and 2 above provided that you also do one of the following:
+
+    a) Accompany it with the complete corresponding machine-readable
+    source code, which must be distributed under the terms of Sections
+    1 and 2 above on a medium customarily used for software interchange; or,
+
+    b) Accompany it with a written offer, valid for at least three
+    years, to give any third party, for a charge no more than your
+    cost of physically performing source distribution, a complete
+    machine-readable copy of the corresponding source code, to be
+    distributed under the terms of Sections 1 and 2 above on a medium
+    customarily used for software interchange; or,
+
+    c) Accompany it with the information you received as to the offer
+    to distribute corresponding source code.  (This alternative is
+    allowed only for noncommercial distribution and only if you
+    received the program in object code or executable form with such
+    an offer, in accord with Subsection b above.)
+
+The source code for a work means the preferred form of the work for
+making modifications to it.  For an executable work, complete source
+code means all the source code for all modules it contains, plus any
+associated interface definition files, plus the scripts used to
+control compilation and installation of the executable.  However, as a
+special exception, the source code distributed need not include
+anything that is normally distributed (in either source or binary
+form) with the major components (compiler, kernel, and so on) of the
+operating system on which the executable runs, unless that component
+itself accompanies the executable.
+
+If distribution of executable or object code is made by offering
+access to copy from a designated place, then offering equivalent
+access to copy the source code from the same place counts as
+distribution of the source code, even though third parties are not
+compelled to copy the source along with the object code.
+
+
+  4. You may not copy, modify, sublicense, or distribute the Program
+except as expressly provided under this License.  Any attempt
+otherwise to copy, modify, sublicense or distribute the Program is
+void, and will automatically terminate your rights under this License.
+However, parties who have received copies, or rights, from you under
+this License will not have their licenses terminated so long as such
+parties remain in full compliance.
+
+  5. You are not required to accept this License, since you have not
+signed it.  However, nothing else grants you permission to modify or
+distribute the Program or its derivative works.  These actions are
+prohibited by law if you do not accept this License.  Therefore, by
+modifying or distributing the Program (or any work based on the
+Program), you indicate your acceptance of this License to do so, and
+all its terms and conditions for copying, distributing or modifying
+the Program or works based on it.
+
+  6. Each time you redistribute the Program (or any work based on the
+Program), the recipient automatically receives a license from the
+original licensor to copy, distribute or modify the Program subject to
+these terms and conditions.  You may not impose any further
+restrictions on the recipients' exercise of the rights granted herein.
+You are not responsible for enforcing compliance by third parties to
+this License.
+
+  7. If, as a consequence of a court judgment or allegation of patent
+infringement or for any other reason (not limited to patent issues),
+conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot
+distribute so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you
+may not distribute the Program at all.  For example, if a patent
+license would not permit royalty-free redistribution of the Program by
+all those who receive copies directly or indirectly through you, then
+the only way you could satisfy both it and this License would be to
+refrain entirely from distribution of the Program.
+
+If any portion of this section is held invalid or unenforceable under
+any particular circumstance, the balance of the section is intended to
+apply and the section as a whole is intended to apply in other
+circumstances.
+
+It is not the purpose of this section to induce you to infringe any
+patents or other property right claims or to contest validity of any
+such claims; this section has the sole purpose of protecting the
+integrity of the free software distribution system, which is
+implemented by public license practices.  Many people have made
+generous contributions to the wide range of software distributed
+through that system in reliance on consistent application of that
+system; it is up to the author/donor to decide if he or she is willing
+to distribute software through any other system and a licensee cannot
+impose that choice.
+
+This section is intended to make thoroughly clear what is believed to
+be a consequence of the rest of this License.
+
+
+  8. If the distribution and/or use of the Program is restricted in
+certain countries either by patents or by copyrighted interfaces, the
+original copyright holder who places the Program under this License
+may add an explicit geographical distribution limitation excluding
+those countries, so that distribution is permitted only in or among
+countries not thus excluded.  In such case, this License incorporates
+the limitation as if written in the body of this License.
+
+  9. The Free Software Foundation may publish revised and/or new versions
+of the General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+Each version is given a distinguishing version number.  If the Program
+specifies a version number of this License which applies to it and "any
+later version", you have the option of following the terms and conditions
+either of that version or of any later version published by the Free
+Software Foundation.  If the Program does not specify a version number of
+this License, you may choose any version ever published by the Free Software
+Foundation.
+
+  10. If you wish to incorporate parts of the Program into other free
+programs whose distribution conditions are different, write to the author
+to ask for permission.  For software which is copyrighted by the Free
+Software Foundation, write to the Free Software Foundation; we sometimes
+make exceptions for this.  Our decision will be guided by the two goals
+of preserving the free status of all derivatives of our free software and
+of promoting the sharing and reuse of software generally.
+
+			    NO WARRANTY
+
+  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
+FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
+OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
+PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
+OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
+TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
+PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
+REPAIR OR CORRECTION.
+
+  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
+REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
+OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
+TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
+YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
+PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGES.
+
+		     END OF TERMS AND CONDITIONS
+
+
+	    How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) 19yy  <name of author>
+
+    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; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
+
+    Gnomovision version 69, Copyright (C) 19yy name of author
+    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+  `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+  <signature of Ty Coon>, 1 April 1989
+  Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs.  If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library.  If this is what you want to do, use the GNU Library General
+Public License instead of this License.
+
diff --git a/volctl~/makefile b/volctl~/makefile
new file mode 100644
index 0000000..9b4cc04
--- /dev/null
+++ b/volctl~/makefile
@@ -0,0 +1,94 @@
+NAME=volctl~
+CSYM=volctl~
+
+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 -O3 -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
diff --git a/volctl~/readme.txt b/volctl~/readme.txt
new file mode 100644
index 0000000..5707467
--- /dev/null
+++ b/volctl~/readme.txt
@@ -0,0 +1,24 @@
+volctl~
+
+a fast and smooth volume control external ...
+
+volctl~ is doing more or less the same as
+
+
+     |line~ 0 10		
+|    |              |     |     |
+|*~ 0|            = |volctl 0 10|
+|		    |
+
+except that it is faster
+
+argument1: initial factor
+argument2: interpolation time
+
+
+volctl~ will only probably only compile against pd>=devel_0_37 with gcc.
+i'm not planing to do a port to win/osx or any pd without aligned dsp blocks...
+
+todo:
+- write complete volctl_perform_simd function in assembler
+- check icc's segfault
\ No newline at end of file
diff --git a/volctl~/volctl~.c b/volctl~/volctl~.c
new file mode 100644
index 0000000..9ef96de
--- /dev/null
+++ b/volctl~/volctl~.c
@@ -0,0 +1,274 @@
+/* Copyright (c) 2004 Tim Blechmann.
+ *For information on usage and redistribution, and for a DISCLAIMER OF ALL
+ *WARRANTIES, see the file, "gpl.txt" in this distribution.
+ *
+ *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.
+ *
+ *See file LICENSE for further informations on licensing terms.
+ *
+ *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; if not, write to the Free Software
+ *Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *
+ *Based on PureData by Miller Puckette and others.
+ *
+ *  coded while listening to: Julien Ottavi: Nervure Magnetique
+ *                                                                    */
+
+
+#include "m_pd.h"
+
+#include "m_simd.h"
+
+
+/* ----------------------------- volctl ----------------------------- */
+
+static t_class *volctl_class;
+
+typedef struct _volctl
+{
+    t_object x_obj;
+    float x_f;
+
+    float x_h; //interpolation time
+    float x_value; //current factor
+    
+    int x_ticksleft; //ticks to go
+    float x_mspersample; //ms per sample
+    float x_slope; //slope
+
+    int x_line; 
+
+} t_volctl;
+
+void *volctl_new(t_symbol *s, int argc, t_atom *argv)
+{
+    if (argc > 2) post("volctl~: extra arguments ignored");
+
+    t_volctl *x = (t_volctl *)pd_new(volctl_class);
+    inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("float"), gensym("f1"));
+    inlet_settip(x->x_obj.ob_inlet,gensym("factor"));
+    x->x_value = atom_getfloatarg(0, argc, argv);
+    
+    t_inlet * time = floatinlet_new(&x->x_obj, &x->x_h);
+    inlet_settip(time,gensym("interpolation_time"));
+    x->x_h = atom_getfloatarg(1, argc, argv);
+
+    x->x_mspersample = 1000.f / 44100; // assume default samplerate
+
+    outlet_new(&x->x_obj, &s_signal);
+    x->x_f = 0;
+    return (x);
+}
+
+t_int *volctl_perform(t_int *w)
+{
+    t_volctl * x = (t_volctl *)(w[1]);
+    t_float *in = (t_float *)(w[2]);
+    t_float *out = (t_float *)(w[3]);
+    int n = (int)(w[4]);
+    
+    float f = x->x_value;
+
+    if (x->x_ticksleft)
+    {
+	float x_slope = x->x_slope;
+	if (x->x_ticksleft < n)
+	{
+	    int remain = x->x_ticksleft;
+	    n-=remain;
+	    while (remain--)
+	    {
+		f+=x_slope;
+		*out++ = *in++ * f;
+	    }
+	    while (n--)
+	    {
+		*out++ = *in++ * f;
+	    }
+	    x->x_value = f;
+	    x->x_ticksleft = 0;
+	}
+	else
+	{
+	    x->x_ticksleft -=n;
+	    while (n--)
+	    {
+		f+=x_slope;
+		*out++ = *in++ * f;
+	    }
+	    x->x_value = f;
+	}
+    }
+    else
+	while (n--) *out++ = *in++ * f; 
+	
+    return (w+5);
+}
+    
+
+t_int *volctl_perf8(t_int *w)
+{
+    t_volctl * x = (t_volctl *)(w[1]);
+    t_float *in = (t_float *)(w[2]);
+    t_float *out = (t_float *)(w[3]);
+    int n = (int)(w[4]);
+
+    float f = x->x_value;
+
+    if (x->x_ticksleft)
+    {
+	float x_slope = x->x_slope;
+	if (x->x_ticksleft < n)
+	{
+	    int remain = x->x_ticksleft;
+	    n-=remain;
+	    while (remain--)
+	    {
+		*out++ = *in++ * f;
+		f+=x_slope;
+	    }
+	    while (n--)
+	    {
+		*out++ = *in++ * f;
+	    }
+	    x->x_value = f;
+	    x->x_ticksleft = 0;
+	}
+	else
+	{
+	    x->x_ticksleft -= n;
+	    while (n--)
+	    {
+		*out++ = *in++ * f;
+		f+=x_slope;
+	    }
+	    x->x_value = f;
+	}
+    }
+    else
+    {
+	for (; n; n -= 8, in += 8, out += 8)
+	{
+	    float f0 = in[0], f1 = in[1], f2 = in[2], f3 = in[3];
+	    float f4 = in[4], f5 = in[5], f6 = in[6], f7 = in[7];
+	    
+	    out[0] = f0 * f; out[1] = f1 * f; out[2] = f2 * f; out[3] = f3 * f;
+	    out[4] = f4 * f; out[5] = f5 * f; out[6] = f6 * f; out[7] = f7 * f;
+	}
+    }
+    return (w+5);
+}
+
+t_int *volctl_perf_simd(t_int *w)
+{
+    t_volctl * x = (t_volctl *)(w[1]);
+    t_float *in = (t_float *)(w[2]);
+    t_float *out = (t_float *)(w[3]);
+
+    if (x->x_ticksleft)
+    {
+	int n = (int)(w[4]);
+	
+	float f = x->x_value;
+
+	float x_slope = x->x_slope;
+	if (x->x_ticksleft < n)
+	{
+	    int remain = x->x_ticksleft;
+	    n-=remain;
+	    while (remain--)
+	    {
+		*out++ = *in++ * f;
+		f+=x_slope;
+	    }
+	    while (n--)
+	    {
+		*out++ = *in++ * f;
+	    }
+	    x->x_value = f;
+	    x->x_ticksleft = 0;
+	}
+	else
+	{
+	    x->x_ticksleft -= n;
+	    while (n--)
+	    {
+		*out++ = *in++ * f;
+		f+=x_slope;
+	    }
+	    x->x_value = f;
+	}
+    }
+    else
+    {
+	asm(
+	    ".set T_FLOAT,4                            \n"
+
+	    "movss     (%3), %%xmm0                   \n"
+	    "shufps    $0, %%xmm0, %%xmm0                \n"
+	    "shrl      $4, %2                        \n"
+  
+	    "volctl_loop:                              \n"
+	    "movaps    (%0), %%xmm1                   \n"
+	    "mulps     %%xmm0, %%xmm1                    \n"
+	    "movaps    %%xmm1, (%1)                   \n" 
+	    "movaps    4*T_FLOAT(%0), %%xmm2          \n"
+	    "mulps     %%xmm0, %%xmm2                    \n"
+	    "movaps    %%xmm2, 4*T_FLOAT(%1)          \n"
+	    "movaps    8*T_FLOAT(%0), %%xmm3          \n"
+	    "mulps     %%xmm0, %%xmm3                    \n"
+	    "movaps    %%xmm3, 8*T_FLOAT(%1)          \n"
+	    "movaps    12*T_FLOAT(%0), %%xmm4         \n"
+	    "mulps     %%xmm0, %%xmm4                    \n"
+	    "movaps    %%xmm4, 12*T_FLOAT(%1)         \n"
+	    "addl      $64, %0                       \n"
+	    "addl      $64, %1                       \n"
+	    "loop      volctl_loop                     \n"
+	    :
+	    : "r"(in), "r"(out),
+	    "a"(w[4]),"r"(&(x->x_value))
+	    : "%xmm0","%xmm1","%xmm2","%xmm3","%xmm4");
+    }
+    return (w+5);
+}
+
+
+void volctl_set(t_volctl *x, t_float f)
+{
+    x->x_ticksleft = x->x_h / x->x_mspersample;
+    x->x_slope = (f - x->x_value) / x->x_ticksleft;
+}
+
+void volctl_dsp(t_volctl *x, t_signal **sp)
+{
+    const int n = sp[0]->s_n;
+    if (n&7)
+    	dsp_add(volctl_perform, 4, x, sp[0]->s_vec, sp[1]->s_vec, n);
+    else 
+    {
+	if(SIMD_CHECK2(n,sp[0]->s_vec,sp[1]->s_vec))
+	    dsp_add(volctl_perf_simd, 4, x, sp[0]->s_vec, sp[1]->s_vec, n);
+	else
+	dsp_add(volctl_perf8, 4, x, sp[0]->s_vec, sp[1]->s_vec, n);
+    }
+    x->x_mspersample = 1000.f / sp[0]->s_sr;
+}
+
+void volctl_tilde_setup(void)
+{
+    volctl_class = class_new(gensym("volctl~"), (t_newmethod)volctl_new, 0,
+			     sizeof(t_volctl), 0, A_GIMME, 0);
+    CLASS_MAINSIGNALIN(volctl_class, t_volctl, x_f);
+    class_addmethod(volctl_class, (t_method)volctl_dsp, gensym("dsp"), 0);
+    class_addmethod(volctl_class, (t_method)volctl_set, gensym("f1"),A_FLOAT,0);
+    class_settip(volctl_class,gensym("signal"));
+}
diff --git a/volctl~/volctl~.pd b/volctl~/volctl~.pd
new file mode 100644
index 0000000..401b402
--- /dev/null
+++ b/volctl~/volctl~.pd
@@ -0,0 +1,24 @@
+#N canvas 0 0 450 300 10;
+#X obj 54 101 volctl~ 1 10;
+#X obj 53 18 osc~ 440;
+#X obj 51 141 dac~;
+#X floatatom 93 50 5 0 0 0 - - -;
+#X obj 93 72 * 0.01;
+#X floatatom 160 78 5 0 0 0 - - -;
+#X text 131 36 factor;
+#X text 185 61 interpolation time;
+#X text 189 135 ==;
+#X obj 266 197 *~;
+#X obj 285 173 line~;
+#X obj 285 145 pack 1 10;
+#X text 107 241 but faster;
+#X connect 0 0 2 0;
+#X connect 0 0 2 1;
+#X connect 1 0 0 0;
+#X connect 3 0 4 0;
+#X connect 4 0 0 1;
+#X connect 4 0 11 0;
+#X connect 5 0 0 2;
+#X connect 5 0 11 1;
+#X connect 10 0 9 1;
+#X connect 11 0 10 0;