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//
// Copyright 2017 Ettus Research LLC
// Copyright 2018 Ettus Research, a National Instruments Company
//
// SPDX-License-Identifier: GPL-3.0-or-later
//
#include "convert_pack_sc12.hpp"
using namespace uhd::convert;
template <typename type, towire32_type towire>
struct convert_star_1_to_sc12_item32_1 : public converter
{
convert_star_1_to_sc12_item32_1(void) : _scalar(0.0)
{
// NOP
}
void set_scalar(const double scalar) override
{
_scalar = scalar;
}
void operator()(const input_type& inputs,
const output_type& outputs,
const size_t nsamps) override
{
const std::complex<type>* input =
reinterpret_cast<const std::complex<type>*>(inputs[0]);
/*
* Effectively outputs will point to a managed_buffer instance. These buffers are
* 32 bit aligned. For a detailed description see comments in
* 'convert_unpack_sc12.cpp'.
*/
const size_t head_samps = size_t(outputs[0]) & 0x3;
int enable;
size_t rewind = 0;
switch (head_samps) {
case 0:
break;
case 1:
rewind = 9;
break;
case 2:
rewind = 6;
break;
case 3:
rewind = 3;
break;
}
item32_sc12_3x* output =
reinterpret_cast<item32_sc12_3x*>(size_t(outputs[0]) - rewind);
// helper variables
size_t i = 0, o = 0;
// handle the head case
switch (head_samps) {
case 0:
break; // no head
case 1:
enable = CONVERT12_LINE2;
convert_star_4_to_sc12_item32_3<type, towire>(
0, 0, 0, input[0], enable, output[o++], _scalar);
break;
case 2:
enable = CONVERT12_LINE2 | CONVERT12_LINE1;
convert_star_4_to_sc12_item32_3<type, towire>(
0, 0, input[0], input[1], enable, output[o++], _scalar);
break;
case 3:
enable = CONVERT12_LINE2 | CONVERT12_LINE1 | CONVERT12_LINE0;
convert_star_4_to_sc12_item32_3<type, towire>(
0, input[0], input[1], input[2], enable, output[o++], _scalar);
break;
}
i += head_samps;
// convert the body
while (i + 3 < nsamps) {
convert_star_4_to_sc12_item32_3<type, towire>(input[i + 0],
input[i + 1],
input[i + 2],
input[i + 3],
CONVERT12_LINE_ALL,
output[o],
_scalar);
o++;
i += 4;
}
// handle the tail case
const size_t tail_samps = nsamps - i;
switch (tail_samps) {
case 0:
break; // no tail
case 1:
enable = CONVERT12_LINE0;
convert_star_4_to_sc12_item32_3<type, towire>(
input[i + 0], 0, 0, 0, enable, output[o], _scalar);
break;
case 2:
enable = CONVERT12_LINE0 | CONVERT12_LINE1;
convert_star_4_to_sc12_item32_3<type, towire>(
input[i + 0], input[i + 1], 0, 0, enable, output[o], _scalar);
break;
case 3:
enable = CONVERT12_LINE0 | CONVERT12_LINE1 | CONVERT12_LINE2;
convert_star_4_to_sc12_item32_3<type, towire>(input[i + 0],
input[i + 1],
input[i + 2],
0,
enable,
output[o],
_scalar);
break;
}
}
double _scalar;
};
static converter::sptr make_convert_fc32_1_to_sc12_item32_le_1(void)
{
return converter::sptr(new convert_star_1_to_sc12_item32_1<float, uhd::wtohx>());
}
static converter::sptr make_convert_fc32_1_to_sc12_item32_be_1(void)
{
return converter::sptr(new convert_star_1_to_sc12_item32_1<float, uhd::ntohx>());
}
static converter::sptr make_convert_sc16_1_to_sc12_item32_le_1(void)
{
return converter::sptr(new convert_star_1_to_sc12_item32_1<short, uhd::wtohx>());
}
static converter::sptr make_convert_sc16_1_to_sc12_item32_be_1(void)
{
return converter::sptr(new convert_star_1_to_sc12_item32_1<short, uhd::ntohx>());
}
UHD_STATIC_BLOCK(register_convert_pack_sc12)
{
// uhd::convert::register_bytes_per_item("sc12", 3/*bytes*/); //registered in unpack
uhd::convert::id_type id;
id.num_inputs = 1;
id.num_outputs = 1;
id.input_format = "fc32";
id.output_format = "sc12_item32_le";
uhd::convert::register_converter(
id, &make_convert_fc32_1_to_sc12_item32_le_1, PRIORITY_GENERAL);
id.output_format = "sc12_item32_be";
uhd::convert::register_converter(
id, &make_convert_fc32_1_to_sc12_item32_be_1, PRIORITY_GENERAL);
id.input_format = "sc16";
id.output_format = "sc12_item32_le";
uhd::convert::register_converter(
id, &make_convert_sc16_1_to_sc12_item32_le_1, PRIORITY_GENERAL);
id.output_format = "sc12_item32_be";
uhd::convert::register_converter(
id, &make_convert_sc16_1_to_sc12_item32_be_1, PRIORITY_GENERAL);
}
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