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Added fxpt64_to_double

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This commit is contained in:
Cillian O'Driscoll
2015-11-19 11:11:53 +00:00
parent 0efbff494e
commit 3d4f3704f6
2 changed files with 8 additions and 0 deletions
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7
src/algorithms/tracking/libs/fxpt64.cc
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@@ -41,3 +41,10 @@ int64_t double_to_fxpt64( double in, unsigned int frac_len )
return out; return out;
} }
double fxpt64_to_double( int64_t in, unsigned int frac_len )
{
double out = static_cast< double >( in ) * std::pow( 2.0, -static_cast<double>(frac_len) );
return out;
}

1
src/algorithms/tracking/libs/fxpt64.h
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@@ -36,5 +36,6 @@
#include <cstdint> #include <cstdint>
int64_t double_to_fxpt64( double in, unsigned int frac_len = 32 ); int64_t double_to_fxpt64( double in, unsigned int frac_len = 32 );
double fxpt64_to_double( int64_t in, unsigned int frac_len = 32 );
#endif #endif