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authorHans-Christoph Steiner <eighthave@users.sourceforge.net>2010-02-10 00:34:05 +0000
committerHans-Christoph Steiner <eighthave@users.sourceforge.net>2010-02-10 00:34:05 +0000
commit086e6b358ad45bda0e6a948cfb7ea2d33ab7da5a (patch)
treeb87b0adfbfd8f9b9439d8bf528b63b64f23dce03 /source/prevl.c
parent98e3e1214cf71a62b2de938c9c7e07f6bdd0090c (diff)
re-arranged into libdir and setup with the template Makefile+debian stuff. renabled vv+ and vv- as vvplus and vvminus
svn path=/trunk/externals/smlib/; revision=13158
Diffstat (limited to 'source/prevl.c')
-rw-r--r--source/prevl.c161
1 files changed, 0 insertions, 161 deletions
diff --git a/source/prevl.c b/source/prevl.c
deleted file mode 100644
index 2ba39ce..0000000
--- a/source/prevl.c
+++ /dev/null
@@ -1,161 +0,0 @@
-#include "defines.h"
-
-/*--------------- prevl ---------------*/
-
-static t_class *prevl_class;
-
-typedef struct _prevl
-{
- t_object x_obj;
- float m_lo;
- float m_hi;
- int m_buffer_size;
- int m_buffer_index;
- float *m_buffer; // circular buffer
-} t_prevl;
-
-
-static void prevl_perform_float(t_prevl *x, t_float f)
-{
- int index;
- index=x->m_buffer_index+1;
- index=(index==x->m_buffer_size)?0:index;
- x->m_buffer_index=index;
- x->m_buffer[index]=f;
-}
-
-static void prevl_bang(t_prevl *x)
-{
- int lo,hi,n,index,size;
- t_atom *ap,*app;
- float *buffer, *bp;
-
- lo=(int)x->m_lo;
- hi=(int)x->m_hi;
-
- n=hi-lo;
- size=x->m_buffer_size;
- index=x->m_buffer_index;
- ap = (t_atom *)getbytes(sizeof(t_atom)*n);
- app=ap;
- buffer=x->m_buffer;
- bp=buffer+index-lo;
- bp=(bp>=buffer)?bp:bp+size; // wrap
-
- if (bp-buffer>=n)
- { // no wrap-around needed
- index=n;
- while(index--){
- SETFLOAT(app, *bp--);
- app++;
- }
-// post("not wrapped, app-ap=%i",app-ap);
- }
- else // need to wrap
- {
- int ps, nn;
- ps = bp-buffer;
- nn=n;
-// post(" nn=%i",nn);
- for(;ps>=0;ps--) // don't we miss one sample in signal???
- {
-// post("ps=%i",ps);
- SETFLOAT(app, buffer[ps]);
- app++;
- nn--;
- }
- ps=size-1;
-// post(" nn=%i",nn);
- for(;nn>0;nn--)
- {
-// post("ps=%i",ps);
- SETFLOAT(app, buffer[ps--]);
- app++;
- }
-
- }
-
- outlet_list(x->x_obj.ob_outlet,gensym("list"),n,ap);
- freebytes(ap, sizeof(t_atom)*n);
-}
-
-static void prevl_clear(t_prevl *x)
-{
- int i,s;
- float *f;
- f=x->m_buffer;
- s=x->m_buffer_size;
- for (i=0;i<s;i++)
- *f++=0.0f;
-}
-
-static void prevl_set(t_prevl *x, t_float lo, t_float hi, t_float size)
-{
- if (size<1)
- {
- size=1;
- post("prevl: size is minimum 1...");
- }
- if (hi>size)
- {
- post("prevl: higher bound cannot be higher than the buffer size...");
- hi=size;
- }
- if (lo<0)
- {
- post("prevl: lower bound cannot be negative...");
- lo=0;
- }
- if (hi<1)
- {
- post("prevl: higher bound cannot be smaller than one...");
- hi=1;
- }
- if (hi<=lo)
- {
- post("prevl: higher bound must be higher than lower bound...");
- lo=hi-1.0f;
- }
-
- freebytes(x->m_buffer, x->m_buffer_size);
-
- x->m_hi=(float)((int)hi);
- x->m_lo=(float)((int)lo);
- x->m_buffer_size=(int)size;
- x->m_buffer = (float*)getbytes(sizeof(float)*x->m_buffer_size);
- prevl_clear(x);
- x->m_buffer_index=0;
-}
-
-static void *prevl_new(t_float lo, t_float hi, t_float size)
-{
- t_prevl *x=(t_prevl *)pd_new(prevl_class);
- outlet_new(&x->x_obj, gensym("list"));
- x->m_buffer_size=0;
- x->m_buffer=0;
- prevl_set(x, lo, hi, size);
-
- floatinlet_new(&x->x_obj, &x->m_lo);
- floatinlet_new(&x->x_obj, &x->m_hi);
-
- return (void *)x;
-}
-
-static void prevl_free(t_prevl *x)
-{
- freebytes(x->m_buffer, x->m_buffer_size);
-}
-
-void prevl_setup(void)
-{
- prevl_class = class_new(gensym("prevl"),
- (t_newmethod)prevl_new, (t_method)prevl_free,
- sizeof(t_prevl),
- CLASS_DEFAULT,
- A_DEFFLOAT, A_DEFFLOAT, A_DEFFLOAT,0);
-
- class_addmethod(prevl_class, (t_method)prevl_clear, gensym("clear"),0);
- class_addfloat(prevl_class, (t_method)prevl_perform_float);
- class_addbang(prevl_class, (t_method)prevl_bang);
-}
-