From 98e6c002e5b6b8a3c45eb014e000e4dd13f3dd8e Mon Sep 17 00:00:00 2001
From: musil <tmusil@users.sourceforge.net>
Date: Wed, 24 Nov 2010 18:23:10 +0000
Subject: now with internal double precision rendering

svn path=/trunk/externals/iemlib/; revision=14523
---
 iemlib1/src/peakenv~.c | 35 +++++++++++++++++------------------
 1 file changed, 17 insertions(+), 18 deletions(-)

(limited to 'iemlib1/src/peakenv~.c')

diff --git a/iemlib1/src/peakenv~.c b/iemlib1/src/peakenv~.c
index 0625205..d9ebeff 100644
--- a/iemlib1/src/peakenv~.c
+++ b/iemlib1/src/peakenv~.c
@@ -1,7 +1,7 @@
 /* For information on usage and redistribution, and for a DISCLAIMER OF ALL
 * WARRANTIES, see the file, "LICENSE.txt," in this distribution.
 
-iemlib1 written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2006 */
+iemlib1 written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2010 */
 
 
 #include "m_pd.h"
@@ -13,10 +13,10 @@ iemlib1 written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2006
 typedef struct _peakenv_tilde
 {
   t_object x_obj;
-  t_float  x_sr;
-  t_float  x_old_peak;
-  t_float  x_c1;
-  t_float  x_releasetime;
+  double   x_sr;
+  double   x_old_peak;
+  double   x_c1;
+  double   x_releasetime;
   t_float  x_msi;
 } t_peakenv_tilde;
 
@@ -24,14 +24,14 @@ static t_class *peakenv_tilde_class;
 
 static void peakenv_tilde_reset(t_peakenv_tilde *x)
 {
-  x->x_old_peak = 0.0f;
+  x->x_old_peak = 0.0;
 }
 
 static void peakenv_tilde_ft1(t_peakenv_tilde *x, t_floatarg f)/* release-time in ms */
 {
   if(f < 0.0f)
     f = 0.0f;
-  x->x_releasetime = f;
+  x->x_releasetime = (double)f;
   x->x_c1 = exp(-1.0/(x->x_sr*0.001*x->x_releasetime));
 }
 
@@ -41,29 +41,29 @@ static t_int *peakenv_tilde_perform(t_int *w)
   t_float *out = (t_float *)(w[2]);
   t_peakenv_tilde *x = (t_peakenv_tilde *)(w[3]);
   int n = (int)(w[4]);
-  t_float peak = x->x_old_peak;
-  t_float c1 = x->x_c1;
-  t_float absolute;
+  double peak = x->x_old_peak;
+  double c1 = x->x_c1;
+  double absolute;
   int i;
   
   for(i=0; i<n; i++)
   {
-    absolute = fabs(*in++);
+    absolute = (double)fabs(*in++);
     peak *= c1;
     if(absolute > peak)
       peak = absolute;
-    *out++ = peak;
+    *out++ = (t_float)peak;
   }
   /* NAN protect */
-  if(IEM_DENORMAL(peak))
-    peak = 0.0f;
+  //if(IEM_DENORMAL(peak))
+  //  peak = 0.0f;
   x->x_old_peak = peak;
   return(w+5);
 }
 
 static void peakenv_tilde_dsp(t_peakenv_tilde *x, t_signal **sp)
 {
-  x->x_sr = (t_float)sp[0]->s_sr;
+  x->x_sr = (double)sp[0]->s_sr;
   peakenv_tilde_ft1(x, x->x_releasetime);
   dsp_add(peakenv_tilde_perform, 4, sp[0]->s_vec, sp[1]->s_vec, x, sp[0]->s_n);
 }
@@ -74,9 +74,9 @@ static void *peakenv_tilde_new(t_floatarg f)
   
   if(f <= 0.0f)
     f = 0.0f;
-  x->x_sr = 44100.0f;
+  x->x_sr = 44100.0;
   peakenv_tilde_ft1(x, f);
-  x->x_old_peak = 0.0f;
+  x->x_old_peak = 0.0;
   inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("ft1"));
   outlet_new(&x->x_obj, &s_signal);
   x->x_msi = 0;
@@ -91,5 +91,4 @@ void peakenv_tilde_setup(void)
   class_addmethod(peakenv_tilde_class, (t_method)peakenv_tilde_dsp, gensym("dsp"), 0);
   class_addmethod(peakenv_tilde_class, (t_method)peakenv_tilde_ft1, gensym("ft1"), A_FLOAT, 0);
   class_addmethod(peakenv_tilde_class, (t_method)peakenv_tilde_reset, gensym("reset"), 0);
-//  class_sethelpsymbol(peakenv_tilde_class, gensym("iemhelp/help-peakenv~"));
 }
-- 
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