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Chrono: add methods FromScale()

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This commit is contained in:
Max Kellermann 2014-08-29 20:57:25 +02:00
parent 2ee821656f
commit 94f6380d69
1 changed files with 24 additions and 0 deletions
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24
src/Chrono.hxx
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@ -75,6 +75,18 @@ public:
return count() * T(scale) / 1000; return count() * T(scale) / 1000;
} }
/**
* Convert a scalar value with the given scale to a #SongTime
* instance.
*
* @param value the input value
* @param scale the value's scale in Hz
*/
template<typename T=rep>
static constexpr SongTime FromScale(T value, unsigned scale) {
return SongTime(value * T(1000) / T(scale));
}
constexpr double ToDoubleS() const { constexpr double ToDoubleS() const {
return double(count()) / 1000.; return double(count()) / 1000.;
}; };
@ -163,6 +175,18 @@ public:
return count() * T(scale) / 1000; return count() * T(scale) / 1000;
} }
/**
* Convert a scalar value with the given scale to a
* #SignedSongTime instance.
*
* @param value the input value
* @param scale the value's scale in Hz
*/
template<typename T=rep>
static constexpr SignedSongTime FromScale(T value, unsigned scale) {
return SignedSongTime(value * T(1000) / T(scale));
}
constexpr double ToDoubleS() const { constexpr double ToDoubleS() const {
return double(count()) / 1000.; return double(count()) / 1000.;
}; };