Deprecated: Function create_function() is deprecated in /home/c00p/www/lib/geshi/geshi.php on line 4698
//------------------------------------------------------------------------------
//  Pd Spectral Toolkit
//
//  add~.c
//
//  Example Object
//  Adds two signals together and accepts an argument
//
//  Created by Cooper Baker on 4/17/12.
//  Updated for 64 Bit Support in September 2019.
//  Copyright (C) 2019 Cooper Baker. All Rights Reserved.
//------------------------------------------------------------------------------


//------------------------------------------------------------------------------
// headers
//------------------------------------------------------------------------------

// main header for pd
#include "m_pd.h"

// utility header for Pd Spectral Toolkit project
#include "utility.h"

// disable compiler warnings on windows
#ifdef NT
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif


//------------------------------------------------------------------------------
// add_class - pointer to this object's definition
//------------------------------------------------------------------------------
static t_class* add_class;
static t_class* add_arg_class;

//------------------------------------------------------------------------------
// add - data structure holding this object's data
//------------------------------------------------------------------------------
typedef struct add
{
    // this object - must always be first variable in struct
    t_object object;

    // needed for CLASS_MAINSIGNALIN macro call in add_tilde_setup
    t_float inlet_1;

    // inlet 2 value
    t_float inlet_2;

} t_add;


//------------------------------------------------------------------------------
// function prototypes
//------------------------------------------------------------------------------
static t_int* add_perform     ( t_int* io );
static t_int* add_arg_perform ( t_int* io );
static void   add_dsp         ( t_add* object, t_signal **sig );
static void   add_arg_dsp     ( t_add* object, t_signal **sig );
static void*  add_new         ( t_symbol *s, t_int argc, t_atom *argv );
void          add_tilde_setup ( void );


//------------------------------------------------------------------------------
// add_perform - the signal processing function of this object
//------------------------------------------------------------------------------
static t_int* add_perform( t_int* io )
{
    // store variables from dsp input/output array
    t_float* in1    = ( t_float* )( io[ 1 ] );
    t_float* in2    = ( t_float* )( io[ 2 ] );
    t_float* out    = ( t_float* )( io[ 3 ] );
    t_int    frames = ( t_int    )( io[ 4 ] );

    // signal vector iterator variable
    t_int n = -1;

    // the dsp loop
    while( ++n < frames )
    {
        // perform addition and store output sample
        out[ n ] = in1[ n ] + in2[ n ];
    }

    // return the dsp input/output array address plus one more than its size
    // to provide a pointer to the next perform function in pd's call list
    return &( io[ 5 ] );
}


//------------------------------------------------------------------------------
// add_arg_perform - the signal processing function of this object with argument
//------------------------------------------------------------------------------
static t_int* add_arg_perform( t_int* io )
{
    // store variables from dsp input/output array
    t_float* in     =  ( t_float* )( io[ 1 ] );
    t_float  arg    = *( t_float* )( io[ 2 ] );
    t_float* out    =  ( t_float* )( io[ 3 ] );
    t_int    frames =  ( t_int    )( io[ 4 ] );

    // signal vector iterator variable
    t_int n = -1;

    // the dsp loop
    while( ++n < frames )
    {
        // perform addition and store output sample
        out[ n ] = in[ n ] + arg;
    }

    // return the dsp input/output array address plus one more than its size
    // to provide a pointer to the next perform function in pd's call list
    return &( io[ 5 ] );
}


//------------------------------------------------------------------------------
// add_dsp - installs this object's dsp function in pd's callback list
//------------------------------------------------------------------------------
static void add_dsp( t_add* object, t_signal **sig )
{
    // dsp_add arguments
    //--------------------------------------------------------------------------
    // perform routine
    // number of passed parameters
    // inlet 1 sample vector
    // inlet 2 sample vector
    // outlet sample vector
    // sample frames to process (vector size)
    dsp_add( add_perform, 4, sig[ 0 ]->s_vec, sig[ 1 ]->s_vec, sig[ 2 ]->s_vec, sig[ 0 ]->s_n );
}


//------------------------------------------------------------------------------
// add_arg_dsp - installs this object's dsp function in pd's callback list
//------------------------------------------------------------------------------
static void add_arg_dsp( t_add* object, t_signal **sig )
{
    // dsp_add arguments
    //--------------------------------------------------------------------------
    // perform routine
    // number of passed parameters
    // inlet 1 sample vector
    // object's argument value
    // outlet sample vector
    // sample frames to process (vector size)
    dsp_add( add_arg_perform, 4, sig[ 0 ]->s_vec, &object->inlet_2, sig[ 1 ]->s_vec, sig[ 0 ]->s_n );
}


//------------------------------------------------------------------------------
// add_new - instantiates a copy of this object in pd
//------------------------------------------------------------------------------
static void* add_new( t_symbol *s, t_int argc, t_atom *argv )
{
    if( argc > 1 )
    {
        post( "add~: extra arguments ignored" );
    }

    if( argc )
    {
        // create a pointer to this object
        t_add* object = ( t_add* )pd_new( add_arg_class );

        // create a second float inlet
        floatinlet_new( &object->object, &object->inlet_2 );

        // assign an argument value to inlet_2 variable
        object->inlet_2 = atom_getfloatarg( 0, ( int )argc, argv );

        // create a signal outlet for this object
        outlet_new( &object->object, gensym( "signal" ) );

        // initialize the value of inlet_1 variable
        object->inlet_1 = 0;

        return object;
    }
    else
    {
        // create a pointer to this object
        t_add* object = ( t_add* )pd_new( add_class );

        // create a second signal inlet
        signalinlet_new( &object->object, object->inlet_2 );

        // create a signal outlet for this object
        outlet_new( &object->object, gensym( "signal" ) );

        // initialize the value of inlet_1 variable
        object->inlet_1 = 0;

        return object;
    }
}


//------------------------------------------------------------------------------
// add_tilde_setup - describes the attributes of this object to pd so it may be properly instantiated
// (must always be named with _tilde replacing ~ in the object name)
//------------------------------------------------------------------------------
void add_tilde_setup( void )
{
    // add class
    //--------------------------------------------------------------------------

    // creates an instance of this object and describes it to pd
    add_class = class_new( gensym( "add~" ), ( t_newmethod )add_new, 0, sizeof( t_add ), 0, A_GIMME, 0 );

    // declares leftmost inlet as a signal inlet
    CLASS_MAINSIGNALIN( add_class, t_add, inlet_1 );

    // installs add_dsp so that it will be called when dsp is turned on
    class_addmethod( add_class, ( t_method )add_dsp, gensym( "dsp" ), 0 );


    // add_arg class
    //--------------------------------------------------------------------------

    // creates an instance of this object with an argument and describes it to pd
    add_arg_class = class_new( gensym( "add~" ), 0, 0, sizeof( t_add ), 0, 0 );

    // declares leftmost inlet as a signal inlet
    CLASS_MAINSIGNALIN( add_arg_class, t_add, inlet_1 );

    // installs add_arg_dsp so that it will be called when dsp is turned on
    class_addmethod( add_arg_class, ( t_method )add_arg_dsp, gensym( "dsp" ), 0 );
}


//------------------------------------------------------------------------------
// EOF
//------------------------------------------------------------------------------