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-rw-r--r--modules/eadsr.c174
1 files changed, 0 insertions, 174 deletions
diff --git a/modules/eadsr.c b/modules/eadsr.c
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--- a/modules/eadsr.c
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@@ -1,174 +0,0 @@
-/*
- * eadsr.c - exponential attack decay sustain release envelope
- * Copyright (c) 2000-2003 by Tom Schouten
- *
- * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <m_pd.h>
-#include <math.h>
-#include "extlib_util.h"
-
-typedef struct eadsrctl
-{
- t_float c_attack;
- t_float c_decay;
- t_float c_sustain;
- t_float c_release;
- t_float c_state;
- t_float c_target;
-} t_eadsrctl;
-
-typedef struct eadsr
-{
- t_object x_obj;
- t_float x_sr;
- t_eadsrctl x_ctl;
-} t_eadsr;
-
-void eadsr_attack(t_eadsr *x, t_floatarg f)
-{
- x->x_ctl.c_attack = milliseconds_2_one_minus_realpole(f);
-}
-
-void eadsr_decay(t_eadsr *x, t_floatarg f)
-{
- x->x_ctl.c_decay = milliseconds_2_one_minus_realpole(f);
-}
-
-void eadsr_sustain(t_eadsr *x, t_floatarg f)
-{
- if (f>ENVELOPE_MAX) f = ENVELOPE_MAX;
- if (f<ENVELOPE_MIN) f = ENVELOPE_MIN;
-
- x->x_ctl.c_sustain = f;
-}
-
-void eadsr_release(t_eadsr *x, t_floatarg f)
-{
- x->x_ctl.c_release = milliseconds_2_one_minus_realpole(f);
-
-}
-
-void eadsr_start(t_eadsr *x)
-{
- x->x_ctl.c_target = 1;
- x->x_ctl.c_state = 0.0f;
-
-}
-
-void eadsr_stop(t_eadsr *x)
-{
- x->x_ctl.c_target = 0;
-
-}
-
-void eadsr_float(t_eadsr *x, t_floatarg f)
-{
- if (f == 0.0f) eadsr_stop(x);
- else eadsr_start(x);
-}
-
-static t_int *eadsr_perform(t_int *w)
-{
- t_float *out = (float *)(w[3]);
- t_eadsrctl *ctl = (t_eadsrctl *)(w[1]);
- t_float attack = ctl->c_attack;
- t_float decay = ctl->c_decay;
- t_float sustain = ctl->c_sustain;
- t_float release = ctl->c_release;
- t_float state = ctl->c_state;
- t_float target = ctl->c_target;
- t_int n = (t_int)(w[2]);
-
- t_int i;
-
-
- for (i = 0; i < n; i++){
- if (target == 1.0f){
- /* attack */
- *out++ = state;
- state += attack*(1 - state);
- target = (state > ENVELOPE_MAX) ? sustain : 1.0f;
- }
- else if (target == 0.0f){
- /* release */
- *out++ = state;
- state -= release*state;
- }
- else{
- /* decay */
- *out++ = state;
- state -= decay*(state-sustain);
- }
- }
-
- /* save state */
- ctl->c_state = IS_DENORMAL(state) ? 0 : state;
- ctl->c_target = target;
- return (w+4);
-}
-
-static void eadsr_dsp(t_eadsr *x, t_signal **sp)
-{
- x->x_sr = sp[0]->s_sr;
- dsp_add(eadsr_perform, 3, &x->x_ctl, sp[0]->s_n, sp[0]->s_vec);
-
-}
-void eadsr_free(void)
-{
-
-}
-
-t_class *eadsr_class;
-
-void *eadsr_new(t_floatarg attack, t_floatarg decay, t_floatarg sustain, t_floatarg release)
-{
- t_eadsr *x = (t_eadsr *)pd_new(eadsr_class);
- inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("float"), gensym("attack"));
- inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("float"), gensym("decay"));
- inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("float"), gensym("sustain"));
- inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("float"), gensym("release"));
- outlet_new(&x->x_obj, gensym("signal"));
-
- x->x_ctl.c_state = 0;
- x->x_ctl.c_target = 0;
- eadsr_attack(x, attack);
- eadsr_decay(x, decay);
- eadsr_sustain(x, sustain);
- eadsr_release(x, release);
-
-
- return (void *)x;
-}
-
-void eadsr_tilde_setup(void)
-{
- //post("eadsr~ v0.1");
- eadsr_class = class_new(gensym("eadsr~"), (t_newmethod)eadsr_new,
- (t_method)eadsr_free, sizeof(t_eadsr), 0, A_DEFFLOAT, A_DEFFLOAT, A_DEFFLOAT, A_DEFFLOAT, 0);
- class_addmethod(eadsr_class, (t_method)eadsr_float, gensym("float"), A_FLOAT, 0);
- class_addmethod(eadsr_class, (t_method)eadsr_start, gensym("start"), 0);
- class_addmethod(eadsr_class, (t_method)eadsr_start, gensym("bang"), 0);
- class_addmethod(eadsr_class, (t_method)eadsr_stop, gensym("stop"), 0);
- class_addmethod(eadsr_class, (t_method)eadsr_dsp, gensym("dsp"), 0);
- class_addmethod(eadsr_class, (t_method)eadsr_attack, gensym("attack"), A_FLOAT, 0);
- class_addmethod(eadsr_class, (t_method)eadsr_decay, gensym("decay"), A_FLOAT, 0);
- class_addmethod(eadsr_class, (t_method)eadsr_sustain, gensym("sustain"), A_FLOAT, 0);
- class_addmethod(eadsr_class, (t_method)eadsr_release, gensym("release"), A_FLOAT, 0);
-
-
-}
-