/* -*- c++ -*- */
/*
 * Copyright 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 "float_array_to_int.h"
#include "float_to_int_impl.h"
#include <gnuradio/io_signature.h>
#include <volk/volk.h>

namespace gr {
namespace blocks {

float_to_int::sptr float_to_int::make(size_t vlen, float scale)
{
    return gnuradio::make_block_sptr<float_to_int_impl>(vlen, scale);
}

float_to_int_impl::float_to_int_impl(size_t vlen, float scale)
    : sync_block("float_to_int",
                 io_signature::make(1, 1, sizeof(float) * vlen),
                 io_signature::make(1, 1, sizeof(int) * vlen)),
      d_vlen(vlen),
      d_scale(scale)
{
    const int alignment_multiple = volk_get_alignment() / sizeof(int);
    set_alignment(std::max(1, alignment_multiple));
}

int float_to_int_impl::work(int noutput_items,
                            gr_vector_const_void_star& input_items,
                            gr_vector_void_star& output_items)
{
    // Disable the Volk for now. There is a problem for large 32-bit ints that
    // are not properly represented by the precisions of a single float, which
    // can cause wrapping from large, positive numbers to negative.
    // In gri_float_to_int, the value is first promoted to a 64-bit
    // value, clipped, then converted to a float.
#if 0
      const float *in = (const float *) input_items[0];
      int32_t *out = (int32_t *) output_items[0];

      volk_32f_s32f_convert_32i(out, in, d_scale, d_vlen*noutput_items);
#else
    const float* in = (const float*)input_items[0];
    int* out = (int*)output_items[0];

    float_array_to_int(in, out, d_scale, d_vlen * noutput_items);

#endif

    return noutput_items;
}

} /* namespace blocks */
} /* namespace gr */