diff options
Diffstat (limited to 'src/iemlib2/transf_fader.c')
| -rw-r--r-- | src/iemlib2/transf_fader.c | 308 |
1 files changed, 154 insertions, 154 deletions
diff --git a/src/iemlib2/transf_fader.c b/src/iemlib2/transf_fader.c index 33e8666..7f9c679 100644 --- a/src/iemlib2/transf_fader.c +++ b/src/iemlib2/transf_fader.c @@ -1,154 +1,154 @@ -/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
-* WARRANTIES, see the file, "LICENSE.txt," in this distribution.
-
-iemlib2 written by 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 <stdio.h>
-#include <string.h>
-
-
-/* ------------------------ transf_fader ----------------------- */
-/* -- this loopkup tabel objekt makes a 2-point interpolation -- */
-/* --------- between the pairs of determinating points --------- */
-
-typedef struct _transf_fader
-{
- t_object x_obj;
- int x_size;
- int x_message;
- float *x_array;
-} t_transf_fader;
-
-static t_class *transf_fader_class;
-
-static void transf_fader_pairs(t_transf_fader *x, t_symbol *s, int argc, t_atom *argv)
-{
- if(argc >= 4)
- {
- int i, j, k, ac=argc/2;
- int n=1000;
- int i_prev=0;
- int first=1;
- int i_delta;
- float val_delta;
- float delta;
- float val_prev=0.0f;
- float val=0.0f;
- float *vec=x->x_array;
- float fad_in, fad_out;
-
- for(j=0; j<n; j++)
- {
- vec[j] = -123456.0f;
- }
-
- for(j=0; j<ac; j++)
- {
- fad_in = atom_getfloat(argv++);
- while(fad_in < 0.0f)
- fad_in = 0.0f;
- while(fad_in > 1000.0f)
- fad_in = 1000.0f;
-
- fad_out = atom_getfloat(argv++);
- while(fad_out < -123455.0f)
- fad_out = -123455.0f;
-
- i = (int)fad_in;
- vec[i] = fad_out;
- }
-
- for(j=0; j<n; j++)
- {
- if(vec[j] > -123456.0f)
- {
- if(first)
- {
- first = 0;
- i_prev = j;
- val_prev = vec[j];
- }
- else
- {
- i = j;
- val = vec[j];
- i_delta = i - i_prev;
- val_delta = val - val_prev;
- if(i_delta > 1)
- {
- delta = val_delta / (float)i_delta;
- for(k=i_prev+1; k<i; k++)
- {
- vec[k] = val_prev + delta*(float)(k - i_prev);
- }
- }
- i_prev = i;
- val_prev = val;
- }
- }
- }
- }
- else
- {
- if(x->x_message)
- post("transf_fader-ERROR: less than 2 pairs make no sense");
- }
-}
-
-static void transf_fader_float(t_transf_fader *x, t_floatarg fad_in)
-{
- float fad_out;
- float *vec=x->x_array;
- float fract;
- int i;
-
- while(fad_in < 0.0f)
- fad_in = 0.0f;
- while(fad_in > 999.0f)
- fad_in = 999.0f;
-
- i = (int)fad_in;
- fract = fad_in - (float)i;
- fad_out = vec[i] + fract*(vec[i+1] - vec[i]);
- if(fad_out > -123455.0f)
- outlet_float(x->x_obj.ob_outlet, fad_out);
-}
-
-static void transf_fader_free(t_transf_fader *x)
-{
- freebytes(x->x_array, x->x_size * sizeof(float));
-}
-
-static void *transf_fader_new(t_symbol *s, int argc, t_atom *argv)
-{
- t_transf_fader *x = (t_transf_fader *)pd_new(transf_fader_class);
- int i, n;
-
- x->x_size = 1001;
- x->x_message = 0;
- x->x_array = (float *)getbytes(x->x_size * sizeof(float));
- n = x->x_size;
- for(i=0; i<n; i++)
- x->x_array[i] = -123456.0f;
- transf_fader_pairs(x, gensym("pairs"), argc, argv);
- x->x_message = 1;
- outlet_new(&x->x_obj, &s_float);
- return (x);
-}
-
-void transf_fader_setup(void)
-{
- transf_fader_class = class_new(gensym("transf_fader"), (t_newmethod)transf_fader_new, (t_method)transf_fader_free,
- sizeof(t_transf_fader), 0, A_GIMME, 0);
- class_addfloat(transf_fader_class, (t_method)transf_fader_float);
- class_addmethod(transf_fader_class, (t_method)transf_fader_pairs, gensym("pairs"), A_GIMME, 0);
- class_sethelpsymbol(transf_fader_class, gensym("iemhelp/help-transf_fader"));
-}
+/* For information on usage and redistribution, and for a DISCLAIMER OF ALL +* WARRANTIES, see the file, "LICENSE.txt," in this distribution. + +iemlib2 written by 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 <stdio.h> +#include <string.h> + + +/* ------------------------ transf_fader ----------------------- */ +/* -- this loopkup tabel objekt makes a 2-point interpolation -- */ +/* --------- between the pairs of determinating points --------- */ + +typedef struct _transf_fader +{ + t_object x_obj; + int x_size; + int x_message; + float *x_array; +} t_transf_fader; + +static t_class *transf_fader_class; + +static void transf_fader_pairs(t_transf_fader *x, t_symbol *s, int argc, t_atom *argv) +{ + if(argc >= 4) + { + int i, j, k, ac=argc/2; + int n=1000; + int i_prev=0; + int first=1; + int i_delta; + float val_delta; + float delta; + float val_prev=0.0f; + float val=0.0f; + float *vec=x->x_array; + float fad_in, fad_out; + + for(j=0; j<n; j++) + { + vec[j] = -123456.0f; + } + + for(j=0; j<ac; j++) + { + fad_in = atom_getfloat(argv++); + while(fad_in < 0.0f) + fad_in = 0.0f; + while(fad_in > 1000.0f) + fad_in = 1000.0f; + + fad_out = atom_getfloat(argv++); + while(fad_out < -123455.0f) + fad_out = -123455.0f; + + i = (int)fad_in; + vec[i] = fad_out; + } + + for(j=0; j<n; j++) + { + if(vec[j] > -123456.0f) + { + if(first) + { + first = 0; + i_prev = j; + val_prev = vec[j]; + } + else + { + i = j; + val = vec[j]; + i_delta = i - i_prev; + val_delta = val - val_prev; + if(i_delta > 1) + { + delta = val_delta / (float)i_delta; + for(k=i_prev+1; k<i; k++) + { + vec[k] = val_prev + delta*(float)(k - i_prev); + } + } + i_prev = i; + val_prev = val; + } + } + } + } + else + { + if(x->x_message) + post("transf_fader-ERROR: less than 2 pairs make no sense"); + } +} + +static void transf_fader_float(t_transf_fader *x, t_floatarg fad_in) +{ + float fad_out; + float *vec=x->x_array; + float fract; + int i; + + while(fad_in < 0.0f) + fad_in = 0.0f; + while(fad_in > 999.0f) + fad_in = 999.0f; + + i = (int)fad_in; + fract = fad_in - (float)i; + fad_out = vec[i] + fract*(vec[i+1] - vec[i]); + if(fad_out > -123455.0f) + outlet_float(x->x_obj.ob_outlet, fad_out); +} + +static void transf_fader_free(t_transf_fader *x) +{ + freebytes(x->x_array, x->x_size * sizeof(float)); +} + +static void *transf_fader_new(t_symbol *s, int argc, t_atom *argv) +{ + t_transf_fader *x = (t_transf_fader *)pd_new(transf_fader_class); + int i, n; + + x->x_size = 1001; + x->x_message = 0; + x->x_array = (float *)getbytes(x->x_size * sizeof(float)); + n = x->x_size; + for(i=0; i<n; i++) + x->x_array[i] = -123456.0f; + transf_fader_pairs(x, gensym("pairs"), argc, argv); + x->x_message = 1; + outlet_new(&x->x_obj, &s_float); + return (x); +} + +void transf_fader_setup(void) +{ + transf_fader_class = class_new(gensym("transf_fader"), (t_newmethod)transf_fader_new, (t_method)transf_fader_free, + sizeof(t_transf_fader), 0, A_GIMME, 0); + class_addfloat(transf_fader_class, (t_method)transf_fader_float); + class_addmethod(transf_fader_class, (t_method)transf_fader_pairs, gensym("pairs"), A_GIMME, 0); + class_sethelpsymbol(transf_fader_class, gensym("iemhelp/help-transf_fader")); +} |