diff options
Diffstat (limited to 'host/lib/convert/convert_common.hpp')
| -rw-r--r-- | host/lib/convert/convert_common.hpp | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/host/lib/convert/convert_common.hpp b/host/lib/convert/convert_common.hpp index 1a653a56f..c6ba1fcf9 100644 --- a/host/lib/convert/convert_common.hpp +++ b/host/lib/convert/convert_common.hpp @@ -41,8 +41,10 @@ /*********************************************************************** * Typedefs **********************************************************************/ +typedef std::complex<double> fc64_t; typedef std::complex<float> fc32_t; typedef std::complex<boost::int16_t> sc16_t; +typedef std::complex<boost::int8_t> sc8_t; typedef boost::uint32_t item32_t; /*********************************************************************** @@ -87,4 +89,27 @@ static UHD_INLINE fc32_t item32_to_fc32(item32_t item){ ); } +/*********************************************************************** + * Convert complex double buffer to items32 (no swap) + **********************************************************************/ +static const double shorts_per_double = double(32767); + +static UHD_INLINE item32_t fc64_to_item32(fc64_t num){ + boost::uint16_t real = boost::int16_t(num.real()*shorts_per_double); + boost::uint16_t imag = boost::int16_t(num.imag()*shorts_per_double); + return (item32_t(real) << 16) | (item32_t(imag) << 0); +} + +/*********************************************************************** + * Convert items32 buffer to complex double + **********************************************************************/ +static const double doubles_per_short = double(1.0/shorts_per_double); + +static UHD_INLINE fc64_t item32_to_fc64(item32_t item){ + return fc64_t( + float(boost::int16_t(item >> 16)*doubles_per_short), + float(boost::int16_t(item >> 0)*doubles_per_short) + ); +} + #endif /* INCLUDED_LIBUHD_CONVERT_COMMON_HPP */ |