- merge v0.01 --> Añadido fileselector - Añadidas fuentes de Gem y Pure Data - pix2jpg incluído en Gem. Archivos de construcción de Gem modificados. - Añadido fichero ompiling.txt con instrucciones de compilación
67 lines
2.2 KiB
C
67 lines
2.2 KiB
C
#include "m_pd.h"
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#ifdef NT
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#pragma warning( disable : 4244 )
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#pragma warning( disable : 4305 )
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#endif
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/* ------------------------ dspobj~ ----------------------------- */
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/* tilde object to take absolute value. */
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static t_class *dspobj_class;
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typedef struct _dspobj
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{
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t_object x_obj; /* obligatory header */
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t_float x_f; /* place to hold inlet's value if it's set by message */
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} t_dspobj;
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/* this is the actual performance routine which acts on the samples.
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It's called with a single pointer "w" which is our location in the
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DSP call list. We return a new "w" which will point to the next item
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after us. Meanwhile, w[0] is just a pointer to dsp-perform itself
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(no use to us), w[1] and w[2] are the input and output vector locations,
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and w[3] is the number of points to calculate. */
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static t_int *dspobj_perform(t_int *w)
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{
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t_float *in = (t_float *)(w[1]);
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t_float *out = (t_float *)(w[2]);
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int n = (int)(w[3]);
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while (n--)
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{
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float f = *(in++);
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*out++ = (f > 0 ? f : -f);
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}
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return (w+4);
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}
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/* called to start DSP. Here we call Pd back to add our perform
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routine to a linear callback list which Pd in turn calls to grind
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out the samples. */
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static void dspobj_dsp(t_dspobj *x, t_signal **sp)
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{
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dsp_add(dspobj_perform, 3, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
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}
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static void *dspobj_new(void)
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{
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t_dspobj *x = (t_dspobj *)pd_new(dspobj_class);
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outlet_new(&x->x_obj, gensym("signal"));
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x->x_f = 0;
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return (x);
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}
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/* this routine, which must have exactly this name (with the "~" replaced
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by "_tilde) is called when the code is first loaded, and tells Pd how
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to build the "class". */
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void dspobj_tilde_setup(void)
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{
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dspobj_class = class_new(gensym("dspobj~"), (t_newmethod)dspobj_new, 0,
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sizeof(t_dspobj), 0, A_DEFFLOAT, 0);
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/* this is magic to declare that the leftmost, "main" inlet
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takes signals; other signal inlets are done differently... */
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CLASS_MAINSIGNALIN(dspobj_class, t_dspobj, x_f);
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/* here we tell Pd about the "dsp" method, which is called back
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when DSP is turned on. */
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class_addmethod(dspobj_class, (t_method)dspobj_dsp, gensym("dsp"), 0);
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}
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