Update of /cvsroot/pure-data/externals/bassemu
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv28225
Added Files:
bassemu~.c bassemu~-help.pd bassemu~.pd_linux COPYING Makefile
miniseq.pd
Log Message:
Added bassemu to externals
--- NEW FILE: miniseq.pd ---
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--- NEW FILE: bassemu~-help.pd ---
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#X text 7 61 Send Note-Events as List of Floats:;
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--- NEW FILE: Makefile ---
NAME=bassemu~
CSYM=bassemu
current: pd_linux
# ----------------------- NT -----------------------
pd_nt: $(NAME).dll
.SUFFIXES: .dll
VC="C:\Programme\Microsoft Platform SDK"
VCC="C:\Programme\Microsoft Visual Studio 8"
PDPATH="C:\Programme\pd"
PDNTCFLAGS = /W3 /WX /DNT /DPD /nologo
PDNTINCLUDE = /I. /I$(PDPATH)\tcl\include /I$(PDPATH)\src /I$(VC)\include /I$(LIBUSBPATH)\include
PDNTLDIR = $(VC)\lib
# --- PDNTLIB = $(PDNTLDIR)\libc.lib \
# --- PDNTLIB = $(PDNTLDIR)\oldnames.lib \
PDNTLIB = $(PDNTLDIR)\uuid.lib \
$(PDPATH)\bin\pd.lib \
$(PDPATH)\bin\pthreadVC.lib
.c.dll:
cl $(PDNTCFLAGS) $(PDNTINCLUDE) /c $*.c
link /dll /export:$(CSYM)_setup $*.obj $(PDNTLIB)
# ----------------------- LINUX i386 -----------------------
pd_linux: $(NAME).pd_linux
.SUFFIXES: .pd_linux
LINUXCFLAGS = -DPD -O3 -funroll-loops -Wall -fomit-frame-pointer -fPIC \
-Wall -W -Wshadow -Wstrict-prototypes \
-Wno-unused -Wno-parentheses -Wno-switch $(CFLAGS)
LINUXINCLUDE = -I../../src
.c.pd_linux:
$(CC) $(LINUXCFLAGS) $(LINUXINCLUDE) -o $*.o -c $*.c
ld -export_dynamic -shared -o $*.pd_linux $*.o -lc -lm
strip --strip-unneeded $*.pd_linux
rm -f $*.o
# ----------------------- Mac OSX -----------------------
pd_darwin: $(NAME).pd_darwin
.SUFFIXES: .pd_darwin
DARWINCFLAGS = -DPD -O3 -funroll-loops -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
--- NEW FILE: bassemu~.pd_linux ---
(This appears to be a binary file; contents omitted.)
--- NEW FILE: COPYING ---
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
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Finally, any free program is threatened constantly by software
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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
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either verbatim or with modifications and/or translated into another
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the term "modification".) Each licensee is addressed as "you".
Activities other than copying, distribution and modification are not
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running the Program is not restricted, and the output from the Program
is covered only if its contents constitute a work based on the
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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
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notices that refer to this License and to the absence of any warranty;
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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.
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c) If the modified program normally reads commands interactively
when run, you must cause it, when started running for such
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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,
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This section is intended to make thoroughly clear what is believed to
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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) <year> <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) year 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.
--- NEW FILE: bassemu~.c ---
/* (c) 2006 Ch. Klippel
* this software is gpl'ed software, read the file "COPYING" for details
*/
#include "m_pd.h"
#include "math.h"
/* -------------------------- bassemu~ ------------------------------ */
static t_class *bassemu_class;
#define VER_MAJ 0
#define VER_MIN 3
#define PI_2 6.28218530717958647692
#define sinfact (2. * 6.28328)
typedef struct _bassemu
{
t_object x_obj;
float vco_inc, vco_actinc;
float current_wave, ideal_wave, delta, vco_count;
float pw;
int vco_type, hpf;
float glide;
float thisnote;
float tune;
float vcf_cutoff, vcf_envmod, vcf_envdecay, vcf_reso, vcf_rescoeff;
float vcf_a, vcf_b, vcf_c, vcf_c0, vcf_d1, vcf_d2, vcf_e0, vcf_e1;
int vcf_envpos;
float vca_attack;
float vca_decay;
float vca_a;
float vca_a0;
int vca_mode;
int limit_type;
int ext_type;
char ext_pre;
int envinc;
float decay;
float pitch;
float sr;
float dummy;
} t_bassemu;
static t_int *bassemu_perform(t_int *ww)
{
t_bassemu *x = (t_bassemu *)(ww[1]);
t_float *inbuf = (t_float *)(ww[2]);
t_float *outbuf = (t_float *)(ww[3]);
int n = (int)(ww[4]);
float w = 0, k=0, ts=0, is=0;
// only compute if needed .......
if (x->vca_mode != 2)
{
// begin bassemu dsp engine
while(n--)
{
if (x->ext_type > 0)
{
is = (*inbuf++ * 0.48);
if (is < -0.48) is = -0.48f;
if (is > 0.48) is = 0.48f;
}
// update vcf
if(x->vcf_envpos >= x->envinc) {
w = x->vcf_e0 + x->vcf_c0;
k = exp(-w/x->vcf_rescoeff);
x->vcf_c0 *= x->vcf_envdecay;
x->vcf_a = 2.0*cos(2.0*w) * k;
x->vcf_b = -k*k;
x->vcf_c = 1.0 - x->vcf_a - x->vcf_b;
x->vcf_envpos = 0;
}
// update vco
if (!x->glide) x->vco_actinc = x->vco_inc; // handle glide
else
{
if (x->vco_inc > x->vco_actinc)
x->vco_actinc = (x->vco_actinc +
((x->vco_inc -
x->vco_actinc) /
(x->glide * (x->sr/10.)) ) );
if (x->vco_inc < x->vco_actinc)
x->vco_actinc = (x->vco_actinc -
((x->vco_actinc -
x->vco_inc) /
(x->glide * (x->sr/10.)) ) );
}
// select waveform
switch((int)x->vco_type)
{
case 0 : // sawtooth
x->ideal_wave = sin(x->vco_count);
x->vco_count += x->vco_actinc;
break;
case 1 : // rectangle
if ((x->vco_count+0.5) <= x->pw)
x->ideal_wave = -0.5;
else
x->ideal_wave = 0.5;
x->vco_count += x->vco_actinc;
break;
case 2 : // triangle
if (x->vco_count == -0.5 )
x->ideal_wave = (x->vco_count + 0.000001);
else
{
if (x->vco_count <= 0.0 )
x->ideal_wave = (x->ideal_wave + (x->vco_actinc * 2));
else
x->ideal_wave = (x->ideal_wave - (x->vco_actinc * 2));
}
x->vco_count += x->vco_actinc;
break;
case 3 : // sine
x->ideal_wave = (sin(sinfact * (x->vco_count + 0.5)) / 2);
x->vco_count += (x->vco_actinc / 2.);
break;
default : break;
}
// waveform rises faster than it falls
if( x->vco_count <= 0.0 )
x->current_wave = ( x->current_wave + ((x->ideal_wave - x->current_wave) * 0.95 ));
else
x->current_wave = ( x->current_wave + ((x->ideal_wave - x->current_wave) * 0.9 ));
// recyle and end
if (x->vco_count > 0.5)
x->vco_count = (-0.5);
// run external through VCO-HPF
if(x->ext_pre)
switch((int)x->ext_type)
{
case 1 :
x->current_wave = is;
break;
case 2 :
x->current_wave = ((x->current_wave + is) *0.5f);
break;
default : break;
}
ts = x->current_wave;
// vco hpf function
if( x->hpf )
{
x->delta = (x->delta * x->current_wave);
x->delta = (x->delta * 0.99 );
ts = ((x->delta*2)+0.5);
x->delta = (x->delta - x->current_wave );
}
// update vca
if(!x->vca_mode)
x->vca_a += (x->vca_a0 - x->vca_a) * x->vca_attack;
else if(x->vca_mode == 1)
{
x->vca_a *= x->vca_decay;
if(x->vca_a < (1/65536.0))
{
x->vca_a = 0;
x->vca_mode = 2;
}
}
// mix external without filtering with VCO-HPF
if(!x->ext_pre)
switch((int)x->ext_type)
{
case 1 :
ts = is;
break;
case 2 :
ts = ((ts + is) * 0.5f);
break;
default : break;
}
// compute sample
ts = x->vcf_a * x->vcf_d1 + x->vcf_b * x->vcf_d2 + x->vcf_c * ts * x->vca_a;
x->vcf_d2 = x->vcf_d1;
x->vcf_envpos++;
x->vcf_d1 = ts;
switch((int)x->limit_type)
{
case 1 : // hard limit
if (ts > 0.999) ts = 0.999;
if (ts < -0.999) ts = -0.999;
*outbuf++ = ts;
break;
case 2 : // sine limiting
*outbuf++ = sin(ts);
break;
default : // no limiting et al
*outbuf++ = ts;
break;
}
}
} //end vcamode != 2
else
while(n--)
{
*outbuf++ = 0.0f;
}
return (ww+5);
}
static void bassemu_dsp(t_bassemu *x, t_signal **sp)
{
x->sr = sp[0]->s_sr;
dsp_add(bassemu_perform, 4, x, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
}
static void recalc(t_bassemu *x)
{
x->vcf_e1 = exp(6.109 + 1.5876*(x->vcf_envmod) + 2.1553*(x->vcf_cutoff) - 1.2*(1.0-x->vcf_reso));
x->vcf_e0 = exp(5.613 - 0.8*(x->vcf_envmod) + 2.1553*(x->vcf_cutoff) - 0.7696*(1.0-x->vcf_reso));
x->vcf_e0 *=M_PI/x->sr;
x->vcf_e1 *=M_PI/x->sr;
x->vcf_e1 -= x->vcf_e0;
x->vcf_envpos = x->envinc;
}
static void bassemu_note(t_bassemu *x, t_floatarg f)
{
// calculate note and trigger vca
if(f != -1) { // note
x->thisnote = x->pitch + f-57;
x->vco_inc = ((x->tune/x->sr)*pow(2, (x->thisnote)*(1.0/12.0)) / 2.);
x->vca_mode = 0;
x->vcf_c0 = x->vcf_e1;
x->vcf_envpos = x->envinc;
}
else x->vca_mode = 1;
}
static void bassemu_pitch(t_bassemu *x, t_floatarg f)
{
x->thisnote -= x->pitch;
x->pitch = f;
x->thisnote += x->pitch;
x->vco_inc = ((x->tune/x->sr)*pow(2, (x->thisnote)*(1.0/12.0)) / 2.);
}
static void bassemu_list(t_bassemu *x, t_symbol *s, int argc, t_atom *argv)
{
if (argc >= 5)
{
// get decay
if(argv[4].a_type == A_FLOAT && (atom_getfloatarg(4,argc,argv) != -1))
{ // decay
float d = atom_getfloatarg(4,argc,argv);
x->decay = d;
d = 0.2 + (2.3*d);
d*=x->sr;
x->vcf_envdecay = pow(0.1, 1.0/d * x->envinc);
}
recalc(x);
}
if (argc >= 4)
{
// get envelope modulation
if(argv[3].a_type == A_FLOAT && (atom_getfloatarg(3,argc,argv) != -1))
{ // envmod
x->vcf_envmod = atom_getfloatarg(1,argc,argv);
}
recalc(x);
}
if (argc >= 3)
{
//get resonance
if(argv[2].a_type == A_FLOAT && (atom_getfloatarg(2,argc,argv) != -1))
{ // resonance
x->vcf_reso = atom_getfloatarg(1,argc,argv);
x->vcf_rescoeff = exp(-1.20 + 3.455*(x->vcf_reso));
}
recalc(x);
}
if (argc >= 2)
{
// get cutoff
if(argv[1].a_type == A_FLOAT && (atom_getfloatarg(1,argc,argv) != -1))
{ // cutoff
x->vcf_cutoff = atom_getfloatarg(1,argc,argv);
}
recalc(x);
}
if (argc >= 1)
{
if(argv[0].a_type = A_FLOAT && (atom_getfloatarg(0,argc,argv) != -1))
{ // note
x->thisnote = atom_getfloatarg(0,argc,argv)-57;
x->vco_inc = ((x->tune/x->sr)*pow(2, (x->thisnote)*(1.0/12.0)) / 2.);
x->vca_mode = 0;
x->vcf_c0 = x->vcf_e1;
x->vcf_envpos = x->envinc;
}
else
x->vca_mode = 1;
recalc(x);
}
}
static void bassemu_vco(t_bassemu *x, t_floatarg f)
{
if ((f >= 0) && (f <= 8))
x->vco_type = f;
else
x->vco_type = 0;
}
static void bassemu_hpf(t_bassemu *x, t_floatarg f)
{
if ((f >= 0) && (f <= 1))
x->hpf = f;
else
x->hpf = 0;
}
static void bassemu_glide(t_bassemu *x, t_floatarg f)
{
if (f == 0)
x->glide = 0;
else
x->glide = f;
}
static void bassemu_limit(t_bassemu *x, t_floatarg f)
{
if ((f >= 0) && (f <=2)) x->limit_type = f;
}
static void bassemu_ext(t_bassemu *x, t_floatarg f)
{
if ((f >= 0) && (f <=2)) { x->ext_type = f; x->ext_pre = 0; }
if (f == 3) { x->ext_type = 1; x->ext_pre = 1; }
if (f == 4) { x->ext_type = 2; x->ext_pre = 1; }
}
static void bassemu_tune(t_bassemu *x, t_floatarg f)
{
x->tune = f;
x->vco_inc = ((x->tune/x->sr)*pow(2, (x->thisnote)*(1.0/12.0)) / 2.0);
}
static void bassemu_envinc(t_bassemu *x, t_floatarg f)
{
float d = x->decay;
if (f >= 1) x->envinc = f;
d = 0.2 + (2.3*d);
d *= x->sr;
x->vcf_envdecay = pow(0.1, 1.0/d * x->envinc);
}
static void bassemu_cutoff(t_bassemu *x, t_floatarg f)
{
x->vcf_cutoff = f;
recalc(x);
}
static void bassemu_reso(t_bassemu *x, t_floatarg f)
{
x->vcf_reso = f;
x->vcf_rescoeff = exp(-1.20 + 3.455*(x->vcf_reso));
recalc(x);
}
static void bassemu_envmod(t_bassemu *x, t_floatarg f)
{
x->vcf_envmod = f;
recalc(x);
}
static void bassemu_decay(t_bassemu *x, t_floatarg f)
{
float d = f;
x->decay = d;
d = 0.2 + (2.3*d);
d*=x->sr;
x->vcf_envdecay = pow(0.1, 1.0/d * x->envinc);
}
static void bassemu_pw(t_bassemu *x, t_floatarg f)
{
x->pw = f;
if (x->pw > 1.0)
x->pw = 1.0;
if (x->pw < 0.0)
x->pw = 0.0;
}
static void bassemu_reset(t_bassemu *x, t_floatarg f)
{
x->vco_inc = 0.0f;
x->vco_actinc = 0.0f;
x->current_wave = 0.0f;
x->ideal_wave = 0.0f;
x->delta = 0.0f;
x->vco_count = 0.0f;
x->pw = 0.5f;
x->vco_type = 0;
x->hpf = 0.0f;
x->glide = 0.0f;
x->tune = 440.0f;
x->thisnote = 0;
x->vcf_cutoff = 0.0;
x->vcf_envmod = 0.0;
x->vcf_envdecay = 0.0;
x->vcf_reso = 0.0;
x->vcf_rescoeff = 0.0f;
x->vcf_a = 0.0;
x->vcf_b = 0.0;
x->vcf_c = 0.0;
x->vcf_c0 = 0.0;
x->vcf_d1 = 0.0;
x->vcf_d2 = 0.0;
x->vcf_e0 = 0.0;
x->vcf_e1 = 0.0f;
x->vcf_envpos = 64;
x->vca_attack = (float)(1.0f - 0.94406088f);
x->vca_decay = (float)(0.99897516f);
x->vca_a = 0.0f;
x->vca_a0 = 0.5f;
x->vca_mode = 2 ; // attack (0) / decay (1) / silent (2) mode
x->limit_type = 2;
x->ext_type = 0;
x->ext_pre = 0;
x->envinc = 64;
x->decay = 0;
x->pitch = 0;
}
static void *bassemu_new(t_symbol *s, int argc, t_atom *argv)
{
unsigned int numargs;
t_bassemu *x = (t_bassemu *)pd_new(bassemu_class);
outlet_new(&x->x_obj, gensym("signal"));
bassemu_reset(x,0);
x->sr = 44100.;
return (x);
}
static void bassemu_free(t_bassemu *x)
{
}
void bassemu_tilde_setup(void)
{
bassemu_class = class_new(gensym("bassemu~"), (t_newmethod)bassemu_new,
(t_method)bassemu_free, sizeof(t_bassemu), CLASS_DEFAULT, A_GIMME, 0);
CLASS_MAINSIGNALIN(bassemu_class, t_bassemu, dummy);
class_addmethod(bassemu_class, (t_method)bassemu_dsp, gensym("dsp"), 0);
class_addfloat (bassemu_class, (t_method)bassemu_note); // start/stop using a toggle
class_addmethod(bassemu_class, (t_method)bassemu_list, gensym("list"), A_GIMME, 0);
class_addmethod(bassemu_class, (t_method)bassemu_vco, gensym("vco"), A_DEFFLOAT, 0);
class_addmethod(bassemu_class, (t_method)bassemu_hpf, gensym("hpf"), A_DEFFLOAT, 0);
class_addmethod(bassemu_class, (t_method)bassemu_glide, gensym("glide"), A_DEFFLOAT, 0);
class_addmethod(bassemu_class, (t_method)bassemu_limit, gensym("limit"), A_DEFFLOAT, 0);
class_addmethod(bassemu_class, (t_method)bassemu_ext, gensym("ext"), A_DEFFLOAT, 0);
class_addmethod(bassemu_class, (t_method)bassemu_tune, gensym("tune"), A_DEFFLOAT, 0);
class_addmethod(bassemu_class, (t_method)bassemu_envinc,gensym("envinc"), A_DEFFLOAT, 0);
class_addmethod(bassemu_class, (t_method)bassemu_reset, gensym("reset"), A_DEFFLOAT, 0);
class_addmethod(bassemu_class, (t_method)bassemu_cutoff,gensym("cutoff"), A_DEFFLOAT, 0);
class_addmethod(bassemu_class, (t_method)bassemu_reso, gensym("reso"), A_DEFFLOAT, 0);
class_addmethod(bassemu_class, (t_method)bassemu_envmod,gensym("envmod"), A_DEFFLOAT, 0);
class_addmethod(bassemu_class, (t_method)bassemu_decay, gensym("decay"), A_DEFFLOAT, 0);
class_addmethod(bassemu_class, (t_method)bassemu_pw, gensym("pw"), A_DEFFLOAT, 0);
class_addmethod(bassemu_class, (t_method)bassemu_pitch, gensym("pitch"), A_DEFFLOAT, 0);
post("bassemu~: transistor bass emulation");
post("bassemu~: version %i.%i",VER_MAJ, VER_MIN);
post("bassemu~: (c) 2006 Ch. Klippel - ck(a)mamalala.de");
post("bassemu~: this is gpl'ed software, see README for details\n");
}
