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//
// Copyright 2011 Ettus Research LLC
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
#ifndef INCLUDED_LIBUHD_CONVERT_COMMON_HPP
#define INCLUDED_LIBUHD_CONVERT_COMMON_HPP
#include <uhd/convert.hpp>
#include <uhd/utils/static.hpp>
#include <boost/cstdint.hpp>
#include <complex>
#define DECLARE_CONVERTER(fcn, prio) \
static void fcn( \
uhd::convert::input_type &inputs, \
uhd::convert::output_type &outputs, \
size_t nsamps \
); \
UHD_STATIC_BLOCK(register_##fcn##_##prio){ \
uhd::convert::register_converter(#fcn, fcn, prio); \
} \
static void fcn( \
uhd::convert::input_type &inputs, \
uhd::convert::output_type &outputs, \
size_t nsamps \
)
/***********************************************************************
* Typedefs
**********************************************************************/
typedef std::complex<float> fc32_t;
typedef std::complex<boost::int16_t> sc16_t;
typedef boost::uint32_t item32_t;
/***********************************************************************
* Convert complex short buffer to items32
**********************************************************************/
static UHD_INLINE item32_t sc16_to_item32(sc16_t num){
boost::uint16_t real = num.real();
boost::uint16_t imag = num.imag();
return (item32_t(real) << 16) | (item32_t(imag) << 0);
}
/***********************************************************************
* Convert items32 buffer to complex short
**********************************************************************/
static UHD_INLINE sc16_t item32_to_sc16(item32_t item){
return sc16_t(
boost::int16_t(item >> 16),
boost::int16_t(item >> 0)
);
}
/***********************************************************************
* Convert complex float buffer to items32 (no swap)
**********************************************************************/
static const float shorts_per_float = float(32767);
static UHD_INLINE item32_t fc32_to_item32(fc32_t num){
boost::uint16_t real = boost::int16_t(num.real()*shorts_per_float);
boost::uint16_t imag = boost::int16_t(num.imag()*shorts_per_float);
return (item32_t(real) << 16) | (item32_t(imag) << 0);
}
/***********************************************************************
* Convert items32 buffer to complex float
**********************************************************************/
static const float floats_per_short = float(1.0/shorts_per_float);
static UHD_INLINE fc32_t item32_to_fc32(item32_t item){
return fc32_t(
float(boost::int16_t(item >> 16)*floats_per_short),
float(boost::int16_t(item >> 0)*floats_per_short)
);
}
#endif /* INCLUDED_LIBUHD_CONVERT_COMMON_HPP */
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