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authorIOhannes m zmölnig <zmoelnig@users.sourceforge.net>2005-03-22 20:58:25 +0000
committerIOhannes m zmölnig <zmoelnig@users.sourceforge.net>2005-03-22 20:58:25 +0000
commit2b60d55c919e7588f5aff15936e83c300b3660bb (patch)
tree14d860de7f28083d3756ad91b627de70f26788f6 /src/z_testfun.c
parentc500bc542cb7cc78d6dac3f7da3bff626056b1aa (diff)
zexy-2.0:
- use of abstractions for objects that allow it - some objects are build both as externals and abstractions (as slower fallbacks) - code-layout is now 1:1 c-file<->object (this should allow for building of zexy as a collection of externals instead as a big library) - matrix-objects have moved to iemmatrix !! svn path=/trunk/externals/zexy/; revision=2641
Diffstat (limited to 'src/z_testfun.c')
-rw-r--r--src/z_testfun.c222
1 files changed, 0 insertions, 222 deletions
diff --git a/src/z_testfun.c b/src/z_testfun.c
deleted file mode 100644
index 57d8f20..0000000
--- a/src/z_testfun.c
+++ /dev/null
@@ -1,222 +0,0 @@
-/*
-This external makes the two main test-functions available :
-dirac~ : will make a single peak (eg: a 1 in all the 0s) at a desired position in the signal-vector
- the position can be passed as an argument when creating the object
-step~ : will make a unity step at a desired point in the signal-vector; the second input specifies a
- length: after the so-specified time has elapsed, the step will toggle back to the previous
- value;
- the length can be passed as an argument when creating the object
- with length==1 you might do the dirac~ thing a little bit more complicated
- with length==0 the output just toggles between 0 and 1 every time you bang the object
-
-NOTE : the inlets do NOT specify any times but sample-NUMBERS; there are 64 samples in a signal-vector,
- each "lasting" for 1/44100 secs.
-*/
-
-#include "zexy.h"
-#ifdef NT
-#pragma warning( disable : 4244 )
-#pragma warning( disable : 4305 )
-#endif
-
-/* ------------------------ dirac~ ----------------------------- */
-
-
-static t_class *dirac_class;
-
-typedef struct _dirac
-{
- t_object x_obj;
- t_float position;
- t_float do_it;
-} t_dirac;
-
-static void dirac_bang(t_dirac *x)
-{
- x->do_it = x->position;
-}
-
-static void dirac_float(t_dirac *x, t_float where)
-{
- x->do_it = x->position = where;
-}
-
-static t_int *dirac_perform(t_int *w)
-{
- t_dirac *x = (t_dirac *)(w[1]);
- t_float *out = (t_float *)(w[2]);
- int n = (int)(w[3]);
-
- int do_it = x->do_it;
-
- while (n--)
- {
- *out++ = (!do_it--);
- }
- x->do_it = do_it;
-
- return (w+4);
-}
-
-static void dirac_dsp(t_dirac *x, t_signal **sp)
-{
- dsp_add(dirac_perform, 3, x, sp[0]->s_vec, sp[0]->s_n);
-}
-
-static void dirac_helper(void)
-{
- post("%c dirac~-object :: generates a dirac (unity-pulse)", HEARTSYMBOL);
- post("creation : \"dirac~ [<position>]\" : create a dirac at specified position (in samples)\n"
- "inlet\t: <position>\t: create a dirac at new position\n"
- "\t 'bang'\t: create a dirac at specified position\n"
- "\t 'help'\t: view this\n"
- "outlet\t: signal~");
-}
-
-
-
-static void *dirac_new(t_floatarg where)
-{
- t_dirac *x = (t_dirac *)pd_new(dirac_class);
-
- outlet_new(&x->x_obj, gensym("signal"));
-
- x->do_it = 0;
- x->position = where;
- return (x);
-}
-
-void dirac_setup(void)
-{
- dirac_class = class_new(gensym("dirac~"), (t_newmethod)dirac_new, 0,
- sizeof(t_dirac), 0, A_DEFFLOAT, 0);
- class_addfloat(dirac_class, dirac_float);
- class_addbang(dirac_class, dirac_bang);
- class_addmethod(dirac_class, (t_method)dirac_dsp, gensym("dsp"), 0);
-
- class_addmethod(dirac_class, (t_method)dirac_helper, gensym("help"), 0);
- class_sethelpsymbol(dirac_class, gensym("zexy/dirac~"));
-}
-
-
-
-/* ------------------------ step~ ----------------------------- */
-
-
-static t_class *step_class;
-
-typedef struct _step
-{
- t_object x_obj;
- int position;
- int length;
-
- int toggle;
-
- int wait4start;
- int wait4stop;
-} t_step;
-
-static void step_bang(t_step *x)
-{
- x->wait4stop = x->length + (x->wait4start = x->position);
-}
-
-static void step_float(t_step *x, t_float where)
-{
- x->wait4stop = x->length +
- (x->wait4start =
- (x->position = (where>0)*where)
- );
-}
-
-static void step_setlength(t_step *x, t_float arg)
-{
- x->length = 1 + (arg>0)*arg;
-}
-
-
-
-static t_int *step_perform(t_int *w)
-{
- t_step *x = (t_step *)(w[1]);
- t_float *out = (t_float *)(w[2]);
- int n = (int)(w[3]);
-
- int toggle = x->toggle;
-
- int wait4start = x->wait4start, wait4stop = x->wait4stop;
-
- while (n--)
- {
- wait4stop--;
- if (!wait4start--) toggle ^= 1;
- else if (!wait4stop) toggle ^= 1;
-
- *out++ = toggle;
- }
-
- x->wait4start = wait4start;
- x->wait4stop = wait4stop;
-
- x->toggle = toggle;
- return (w+4);
-}
-
-static void step_dsp(t_step *x, t_signal **sp)
-{
- dsp_add(step_perform, 3, x, sp[0]->s_vec, sp[0]->s_n);
-}
-
-
-static void step_helper(void)
-{
- post("%c step~-object :: generates a unity-step", HEARTSYMBOL);
- post("creation : \"dirac~ [<position> [<length>]]\" : create a rectangular window\n"
- "\t\t\tat specified position and with specified length (in samples)\n"
- "inlet1\t: <position>\t: create a rectangular window at new position\n"
- "\t 'bang'\t: create a rectangular window at specified position\n"
- "\t 'help'\t: view this\n"
- "inlet2\t: <length>\t: define new window length ('0' will make a unity-step)\n"
- "outlet\t: signal~");
-}
-
-
-static void *step_new(t_floatarg farg)
-{
- t_step *x = (t_step *)pd_new(step_class);
-
- inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("float"), gensym("ft1"));
- outlet_new(&x->x_obj, gensym("signal"));
-
- x->position = 0;
- x->wait4start = x->wait4stop = 0;
- x->toggle = 1;
-
- step_setlength(x, farg);
-
- return (x);
-}
-
-void step_setup(void)
-{
- step_class = class_new(gensym("step~"), (t_newmethod)step_new, 0,
- sizeof(t_step), 0, A_DEFFLOAT, 0);
-
- class_addfloat(step_class, step_float);
- class_addbang(step_class, step_bang);
- class_addmethod(step_class, (t_method)step_setlength, gensym("ft1"), A_FLOAT, 0);
- class_addmethod(step_class, (t_method)step_dsp, gensym("dsp"), 0);
-
- class_addmethod(step_class, (t_method)step_helper, gensym("help"), 0);
- class_sethelpsymbol(step_class, gensym("zexy/step~"));
-
-}
-
-/* global setup routine */
-
-void z_testfun_setup(void)
-{
- step_setup();
- dirac_setup();
-}