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/* -*- c++ -*- */
/*
* Copyright 2004,2010,2012 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* SPDX-License-Identifier: GPL-3.0-or-later
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "rail_ff_impl.h"
#include <gnuradio/io_signature.h>
#include <gnuradio/math.h>
namespace gr {
namespace analog {
rail_ff::sptr rail_ff::make(float lo, float hi)
{
return gnuradio::make_block_sptr<rail_ff_impl>(lo, hi);
}
rail_ff_impl::rail_ff_impl(float lo, float hi)
: sync_block("rail_ff",
io_signature::make(1, 1, sizeof(float)),
io_signature::make(1, 1, sizeof(float))),
d_lo(lo),
d_hi(hi)
{
set_clipping();
}
rail_ff_impl::~rail_ff_impl() {}
void rail_ff_impl::set_lo(float lo)
{
d_lo = lo;
set_clipping();
}
void rail_ff_impl::set_hi(float hi)
{
d_hi = hi;
set_clipping();
}
void rail_ff_impl::set_clipping()
{
d_mid = (d_lo + d_hi) / 2;
d_clip = d_hi - d_mid;
}
int rail_ff_impl::work(int noutput_items,
gr_vector_const_void_star& input_items,
gr_vector_void_star& output_items)
{
const float* in = (const float*)input_items[0];
float* out = (float*)output_items[0];
for (int i = 0; i < noutput_items; i++) {
out[i] = d_mid + gr::branchless_clip(in[i] - d_mid, d_clip);
}
return noutput_items;
}
} /* namespace analog */
} /* namespace gr */
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