From d962ed33f6b5fe3040cfbd798f63ab9aa36d1f9e Mon Sep 17 00:00:00 2001 From: Hans-Christoph Steiner Date: Thu, 25 May 2006 16:40:19 +0000 Subject: renamed files to match their class names svn path=/trunk/externals/creb/; revision=5127 --- modules/ead.c | 158 ---------------------------------------------------------- 1 file changed, 158 deletions(-) delete mode 100644 modules/ead.c (limited to 'modules/ead.c') diff --git a/modules/ead.c b/modules/ead.c deleted file mode 100644 index 1fe09b7..0000000 --- a/modules/ead.c +++ /dev/null @@ -1,158 +0,0 @@ -/* - * ead.c - exponential attack decay 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 -#include -#include "extlib_util.h" - -/* pointer to */ -t_class *ead_class; - - -/* state data fpr attack/decay dsp plugin */ -typedef struct eadctl -{ - t_float c_attack; - t_float c_decay; - t_float c_state; - t_int c_target; -} t_eadctl; - - -/* object data structure */ -typedef struct ead -{ - t_object x_obj; - t_eadctl x_ctl; -} t_ead; - - - -static void ead_attack(t_ead *x, t_floatarg f) -{ - x->x_ctl.c_attack = milliseconds_2_one_minus_realpole(f); -} - -static void ead_decay(t_ead *x, t_floatarg f) -{ - x->x_ctl.c_decay = milliseconds_2_one_minus_realpole(f); -} - -static void ead_start(t_ead *x) -{ - /* reset state if necessary to prevent skipping */ - - // always reset, seems to be safest - //if (x->x_ctl.c_target == 1) - - x->x_ctl.c_state = 0.0f; - x->x_ctl.c_target = 1; -} - - -/* dsp callback function, not a method */ -static t_int *ead_perform(t_int *w) -{ - - /* interprete arguments */ - t_float *out = (float *)(w[3]); - t_eadctl *ctl = (t_eadctl *)(w[1]); - t_float attack = ctl->c_attack; - t_float decay = ctl->c_decay; - t_float state = ctl->c_state; - t_int n = (t_int)(w[2]); - - t_int i; - - - /* A/D code */ - - for (i = 0; i < n; i++){ - switch(ctl->c_target){ - case 1: - /* attack phase */ - *out++ = state; - state += attack*(1 - state); - ctl->c_target = (state <= ENVELOPE_MAX); - break; - default: - /* decay phase */ - *out++ = state; - state -= decay*state; - break; - } - - } - - /* save state */ - ctl->c_state = IS_DENORMAL(state) ? 0 : state; - - return (w+4); -} - - -static void ead_dsp(t_ead *x, t_signal **sp) -{ - dsp_add(ead_perform, 3, &x->x_ctl, sp[0]->s_n, sp[0]->s_vec); -} - -/* destructor */ -static void ead_free(void) -{ - -} - - - -/* constructor */ -static void *ead_new(t_floatarg attack, t_floatarg decay, t_floatarg sustain, t_floatarg release) -{ - /* create instance */ - t_ead *x = (t_ead *)pd_new(ead_class); - /* create new inlets, convert incoming message float to attack/decay */ - 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")); - /* create a dsp outlet */ - outlet_new(&x->x_obj, gensym("signal")); - - /* initialize */ - x->x_ctl.c_state = 0; - x->x_ctl.c_target = 0; - ead_attack(x, attack); - ead_decay(x, decay); - - /* return instance */ - return (void *)x; -} - -void ead_tilde_setup(void) -{ - //post("ead~ v0.1"); - - ead_class = class_new(gensym("ead~"), (t_newmethod)ead_new, - (t_method)ead_free, sizeof(t_ead), 0, A_DEFFLOAT, A_DEFFLOAT, 0); - - - class_addmethod(ead_class, (t_method)ead_start, gensym("start"), 0); - class_addmethod(ead_class, (t_method)ead_start, gensym("bang"), 0); - class_addmethod(ead_class, (t_method)ead_dsp, gensym("dsp"), 0); - class_addmethod(ead_class, (t_method)ead_attack, gensym("attack"), A_FLOAT, 0); - class_addmethod(ead_class, (t_method)ead_decay, gensym("decay"), A_FLOAT, 0); -} - -- cgit v1.2.1