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//
// Copyright 2017 Ettus Research LLC
//
// SPDX-License-Identifier: GPL-3.0
//
#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)
{
_scalar = scalar;
}
void operator()(const input_type &inputs, const output_type &outputs, const size_t nsamps)
{
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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