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| author | Josh Blum <josh@joshknows.com> | 2011-02-03 16:45:34 -0800 |
|---|---|---|
| committer | Josh Blum <josh@joshknows.com> | 2011-02-03 16:45:34 -0800 |
| commit | 43b19815fec253dc7e5538329f9fe1363f007b8a (patch) | |
| tree | 152724e647f8986868ef521154720ec9a5b8544d /host/lib/convert/convert_common.hpp | |
| parent | 1c8626e40cc9e5243cea0956c6d35d9d96c08d38 (diff) | |
| download | uhd-43b19815fec253dc7e5538329f9fe1363f007b8a.tar.gz uhd-43b19815fec253dc7e5538329f9fe1363f007b8a.tar.bz2 uhd-43b19815fec253dc7e5538329f9fe1363f007b8a.zip | |
uhd: added io type and conversion for complex64 (its not really useful)
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 */ |