66cc643402
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26551 a1c6a512-1295-4272-9138-f99709370657
59 lines
1.3 KiB
C
59 lines
1.3 KiB
C
#include "../src/m_pd.h"
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#include "../src/m_fixed.h"
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static t_class *clip_class;
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typedef struct _clip
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{
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t_object x_obj;
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float x_f;
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t_float x_lo;
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t_float x_hi;
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} t_clip;
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static void *clip_new(t_floatarg lo, t_floatarg hi)
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{
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t_clip *x = (t_clip *)pd_new(clip_class);
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x->x_lo = lo;
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x->x_hi = hi;
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outlet_new(&x->x_obj, gensym("signal"));
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floatinlet_new(&x->x_obj, &x->x_lo);
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floatinlet_new(&x->x_obj, &x->x_hi);
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x->x_f = 0;
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return (x);
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}
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static t_int *clip_perform(t_int *w)
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{
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t_clip *x = (t_clip *)(w[1]);
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t_sample *in = (t_sample *)(w[2]);
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t_sample *out = (t_sample *)(w[3]);
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int n = (int)(w[4]);
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t_sample lo;
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t_sample hi;
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lo = ftofix(x->x_lo);
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hi = ftofix(x->x_hi);
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while (n--)
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{
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t_sample f = *in++;
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if (f < lo) f = lo;
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if (f > hi) f = hi;
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*out++ = f;
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}
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return (w+5);
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}
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static void clip_dsp(t_clip *x, t_signal **sp)
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{
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dsp_add(clip_perform, 4, x, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
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}
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void clip_tilde_setup(void)
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{
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clip_class = class_new(gensym("clip~"), (t_newmethod)clip_new, 0,
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sizeof(t_clip), 0, A_DEFFLOAT, A_DEFFLOAT, 0);
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CLASS_MAINSIGNALIN(clip_class, t_clip, x_f);
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class_addmethod(clip_class, (t_method)clip_dsp, gensym("dsp"), 0);
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}
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