diff options
Diffstat (limited to 'src/iem_t3_lib/sigt3_sig.c')
-rw-r--r-- | src/iem_t3_lib/sigt3_sig.c | 400 |
1 files changed, 200 insertions, 200 deletions
diff --git a/src/iem_t3_lib/sigt3_sig.c b/src/iem_t3_lib/sigt3_sig.c index 84429b6..fcfedee 100644 --- a/src/iem_t3_lib/sigt3_sig.c +++ b/src/iem_t3_lib/sigt3_sig.c @@ -1,200 +1,200 @@ -/* For information on usage and redistribution, and for a DISCLAIMER OF ALL -* WARRANTIES, see the file, "LICENSE.txt," in this distribution. - -iem_t3_lib written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2003 */ - -#ifdef NT -#pragma warning( disable : 4244 ) -#pragma warning( disable : 4305 ) -#endif - -#include "m_pd.h" -#include "iemlib.h" -#include <math.h> -#include <stdio.h> -#include <string.h> - -/* -------------------------- sigt3_sig~ ------------------------------ */ -static t_class *sigt3_sig_class; - -typedef struct _sigt3_sig -{ - t_object x_obj; - t_clock *x_clock; - float x_old_val; - float x_new_val; - float *x_beg; - int x_n; - int x_t3_bang_samps; - int x_transient; - float x_ms2samps; - float x_ticks2ms; -} t_sigt3_sig; - -static void sigt3_sig_tick(t_sigt3_sig *x) -{ - float *trans = x->x_beg, val; - int n = x->x_n, t3_bang_samps, i; - - t3_bang_samps = x->x_t3_bang_samps; - if(!x->x_transient) - { - val = x->x_old_val; - for(i=0; i<t3_bang_samps; i++) - trans[i] = val; - x->x_transient = 1; - } - val = x->x_old_val = x->x_new_val; - for(i=t3_bang_samps; i<n; i++) - trans[i] = val; -} - -static void sigt3_sig_stop(t_sigt3_sig *x) -{ - clock_unset(x->x_clock); - x->x_new_val = x->x_old_val; -} - -static void sigt3_sig_list(t_sigt3_sig *x, t_symbol *s, int ac, t_atom *av) -{ - if((ac == 2)&&IS_A_FLOAT(av,0)&&IS_A_FLOAT(av,1)) - { - int n = x->x_n, t3_bang_samps, ticks; - - t3_bang_samps = (int)((float)atom_getfloatarg(0, ac, av)*x->x_ms2samps); - x->x_new_val = (float)atom_getfloatarg(1, ac, av); - if(t3_bang_samps < 0) - t3_bang_samps = 0; - ticks = t3_bang_samps / n; - x->x_t3_bang_samps = t3_bang_samps - n*ticks; - if(ticks < 1) - sigt3_sig_tick(x); - else - clock_delay(x->x_clock, (double)ticks * (double)x->x_ticks2ms); - } -} - -static t_int *sigt3_sig_perform(t_int *w) -{ - t_float *out = (t_float *)(w[1]); - t_sigt3_sig *x = (t_sigt3_sig *)(w[2]); - int n = (int)(w[3]); - - if(x->x_transient) - { - float *trans = x->x_beg; - - while(n--) - *out++ = *trans++; - x->x_transient = 0; - } - else - { - float val = x->x_new_val; - - while(n--) - *out++ = val; - } - return (w+4); -} - -static t_int *sigt3_sig_perf8(t_int *w) -{ - t_float *out = (t_float *)(w[1]); - t_sigt3_sig *x = (t_sigt3_sig *)(w[2]); - int n = (int)(w[3]), i; - - if(x->x_transient) - { - float *trans = x->x_beg; - - for(i=0; i<n; i+=8, out+=8, trans+=8) - { - out[0] = trans[0]; - out[1] = trans[1]; - out[2] = trans[2]; - out[3] = trans[3]; - out[4] = trans[4]; - out[5] = trans[5]; - out[6] = trans[6]; - out[7] = trans[7]; - } - x->x_transient = 0; - } - else - { - float val = x->x_new_val; - - for(i=0; i<n; i+=8, out+=8) - { - out[0] = val; - out[1] = val; - out[2] = val; - out[3] = val; - out[4] = val; - out[5] = val; - out[6] = val; - out[7] = val; - } - } - return (w+4); -} - -static void sigt3_sig_dsp(t_sigt3_sig *x, t_signal **sp) -{ - int i; - float *trans, val; - - if(sp[0]->s_n > x->x_n) - { - freebytes(x->x_beg, x->x_n*sizeof(float)); - x->x_n = sp[0]->s_n; - x->x_beg = (float *)getbytes(x->x_n*sizeof(float)); - } - else - x->x_n = sp[0]->s_n; - x->x_ms2samps = 0.001*(float)sp[0]->s_sr; - x->x_ticks2ms = (float)x->x_n / x->x_ms2samps; - i = x->x_n; - val = x->x_new_val; - trans = x->x_beg; - while(i--) - *trans++ = val; - - if((sp[0]->s_n)&7) - dsp_add(sigt3_sig_perform, 3, sp[0]->s_vec, x, sp[0]->s_n); - else - dsp_add(sigt3_sig_perf8, 3, sp[0]->s_vec, x, sp[0]->s_n); -} - -static void sigt3_sig_free(t_sigt3_sig *x) -{ - if(x->x_beg) - freebytes(x->x_beg, x->x_n*sizeof(float)); - clock_free(x->x_clock); -} - -static void *sigt3_sig_new(t_floatarg init_val) -{ - t_sigt3_sig *x = (t_sigt3_sig *)pd_new(sigt3_sig_class); - - x->x_new_val = x->x_old_val = init_val; - x->x_n = (int)sys_getblksize(); - x->x_beg = (float *)getbytes(x->x_n*sizeof(float)); - x->x_t3_bang_samps = x->x_transient = 0; - x->x_ms2samps = 0.001 * (float)sys_getsr(); - x->x_ticks2ms = (float)x->x_n / x->x_ms2samps; - x->x_clock = clock_new(x, (t_method)sigt3_sig_tick); - outlet_new(&x->x_obj, &s_signal); - return (x); -} - -void sigt3_sig_setup(void) -{ - sigt3_sig_class = class_new(gensym("t3_sig~"), (t_newmethod)sigt3_sig_new, - (t_method)sigt3_sig_free, sizeof(t_sigt3_sig), 0, A_DEFFLOAT, 0); - class_addmethod(sigt3_sig_class, (t_method)sigt3_sig_dsp, gensym("dsp"), 0); - class_addmethod(sigt3_sig_class, (t_method)sigt3_sig_stop, gensym("stop"), 0); - class_addlist(sigt3_sig_class, (t_method)sigt3_sig_list); - class_sethelpsymbol(sigt3_sig_class, gensym("iemhelp/help-t3_sig~")); -} +/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
+* WARRANTIES, see the file, "LICENSE.txt," in this distribution.
+
+iem_t3_lib written by Gerhard Eckel, Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */
+
+#ifdef NT
+#pragma warning( disable : 4244 )
+#pragma warning( disable : 4305 )
+#endif
+
+#include "m_pd.h"
+#include "iemlib.h"
+#include <math.h>
+#include <stdio.h>
+#include <string.h>
+
+/* -------------------------- sigt3_sig~ ------------------------------ */
+static t_class *sigt3_sig_class;
+
+typedef struct _sigt3_sig
+{
+ t_object x_obj;
+ t_clock *x_clock;
+ float x_old_val;
+ float x_new_val;
+ float *x_beg;
+ int x_n;
+ int x_t3_bang_samps;
+ int x_transient;
+ float x_ms2samps;
+ float x_ticks2ms;
+} t_sigt3_sig;
+
+static void sigt3_sig_tick(t_sigt3_sig *x)
+{
+ float *trans = x->x_beg, val;
+ int n = x->x_n, t3_bang_samps, i;
+
+ t3_bang_samps = x->x_t3_bang_samps;
+ if(!x->x_transient)
+ {
+ val = x->x_old_val;
+ for(i=0; i<t3_bang_samps; i++)
+ trans[i] = val;
+ x->x_transient = 1;
+ }
+ val = x->x_old_val = x->x_new_val;
+ for(i=t3_bang_samps; i<n; i++)
+ trans[i] = val;
+}
+
+static void sigt3_sig_stop(t_sigt3_sig *x)
+{
+ clock_unset(x->x_clock);
+ x->x_new_val = x->x_old_val;
+}
+
+static void sigt3_sig_list(t_sigt3_sig *x, t_symbol *s, int ac, t_atom *av)
+{
+ if((ac == 2)&&IS_A_FLOAT(av,0)&&IS_A_FLOAT(av,1))
+ {
+ int n = x->x_n, t3_bang_samps, ticks;
+
+ t3_bang_samps = (int)((float)atom_getfloatarg(0, ac, av)*x->x_ms2samps);
+ x->x_new_val = (float)atom_getfloatarg(1, ac, av);
+ if(t3_bang_samps < 0)
+ t3_bang_samps = 0;
+ ticks = t3_bang_samps / n;
+ x->x_t3_bang_samps = t3_bang_samps - n*ticks;
+ if(ticks < 1)
+ sigt3_sig_tick(x);
+ else
+ clock_delay(x->x_clock, (double)ticks * (double)x->x_ticks2ms);
+ }
+}
+
+static t_int *sigt3_sig_perform(t_int *w)
+{
+ t_float *out = (t_float *)(w[1]);
+ t_sigt3_sig *x = (t_sigt3_sig *)(w[2]);
+ int n = (int)(w[3]);
+
+ if(x->x_transient)
+ {
+ float *trans = x->x_beg;
+
+ while(n--)
+ *out++ = *trans++;
+ x->x_transient = 0;
+ }
+ else
+ {
+ float val = x->x_new_val;
+
+ while(n--)
+ *out++ = val;
+ }
+ return (w+4);
+}
+
+static t_int *sigt3_sig_perf8(t_int *w)
+{
+ t_float *out = (t_float *)(w[1]);
+ t_sigt3_sig *x = (t_sigt3_sig *)(w[2]);
+ int n = (int)(w[3]), i;
+
+ if(x->x_transient)
+ {
+ float *trans = x->x_beg;
+
+ for(i=0; i<n; i+=8, out+=8, trans+=8)
+ {
+ out[0] = trans[0];
+ out[1] = trans[1];
+ out[2] = trans[2];
+ out[3] = trans[3];
+ out[4] = trans[4];
+ out[5] = trans[5];
+ out[6] = trans[6];
+ out[7] = trans[7];
+ }
+ x->x_transient = 0;
+ }
+ else
+ {
+ float val = x->x_new_val;
+
+ for(i=0; i<n; i+=8, out+=8)
+ {
+ out[0] = val;
+ out[1] = val;
+ out[2] = val;
+ out[3] = val;
+ out[4] = val;
+ out[5] = val;
+ out[6] = val;
+ out[7] = val;
+ }
+ }
+ return (w+4);
+}
+
+static void sigt3_sig_dsp(t_sigt3_sig *x, t_signal **sp)
+{
+ int i;
+ float *trans, val;
+
+ if(sp[0]->s_n > x->x_n)
+ {
+ freebytes(x->x_beg, x->x_n*sizeof(float));
+ x->x_n = sp[0]->s_n;
+ x->x_beg = (float *)getbytes(x->x_n*sizeof(float));
+ }
+ else
+ x->x_n = sp[0]->s_n;
+ x->x_ms2samps = 0.001*(float)sp[0]->s_sr;
+ x->x_ticks2ms = (float)x->x_n / x->x_ms2samps;
+ i = x->x_n;
+ val = x->x_new_val;
+ trans = x->x_beg;
+ while(i--)
+ *trans++ = val;
+
+ if((sp[0]->s_n)&7)
+ dsp_add(sigt3_sig_perform, 3, sp[0]->s_vec, x, sp[0]->s_n);
+ else
+ dsp_add(sigt3_sig_perf8, 3, sp[0]->s_vec, x, sp[0]->s_n);
+}
+
+static void sigt3_sig_free(t_sigt3_sig *x)
+{
+ if(x->x_beg)
+ freebytes(x->x_beg, x->x_n*sizeof(float));
+ clock_free(x->x_clock);
+}
+
+static void *sigt3_sig_new(t_floatarg init_val)
+{
+ t_sigt3_sig *x = (t_sigt3_sig *)pd_new(sigt3_sig_class);
+
+ x->x_new_val = x->x_old_val = init_val;
+ x->x_n = (int)sys_getblksize();
+ x->x_beg = (float *)getbytes(x->x_n*sizeof(float));
+ x->x_t3_bang_samps = x->x_transient = 0;
+ x->x_ms2samps = 0.001 * (float)sys_getsr();
+ x->x_ticks2ms = (float)x->x_n / x->x_ms2samps;
+ x->x_clock = clock_new(x, (t_method)sigt3_sig_tick);
+ outlet_new(&x->x_obj, &s_signal);
+ return (x);
+}
+
+void sigt3_sig_setup(void)
+{
+ sigt3_sig_class = class_new(gensym("t3_sig~"), (t_newmethod)sigt3_sig_new,
+ (t_method)sigt3_sig_free, sizeof(t_sigt3_sig), 0, A_DEFFLOAT, 0);
+ class_addmethod(sigt3_sig_class, (t_method)sigt3_sig_dsp, gensym("dsp"), 0);
+ class_addmethod(sigt3_sig_class, (t_method)sigt3_sig_stop, gensym("stop"), 0);
+ class_addlist(sigt3_sig_class, (t_method)sigt3_sig_list);
+ class_sethelpsymbol(sigt3_sig_class, gensym("iemhelp/help-t3_sig~"));
+}
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