From 94f6380d693b8bece655885d37495a3a73c78b62 Mon Sep 17 00:00:00 2001 From: Max Kellermann Date: Fri, 29 Aug 2014 20:57:25 +0200 Subject: Chrono: add methods FromScale() --- src/Chrono.hxx | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) (limited to 'src/Chrono.hxx') diff --git a/src/Chrono.hxx b/src/Chrono.hxx index 66121db99..e4a304e2c 100644 --- a/src/Chrono.hxx +++ b/src/Chrono.hxx @@ -75,6 +75,18 @@ public: 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 + static constexpr SongTime FromScale(T value, unsigned scale) { + return SongTime(value * T(1000) / T(scale)); + } + constexpr double ToDoubleS() const { return double(count()) / 1000.; }; @@ -163,6 +175,18 @@ public: 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 + static constexpr SignedSongTime FromScale(T value, unsigned scale) { + return SignedSongTime(value * T(1000) / T(scale)); + } + constexpr double ToDoubleS() const { return double(count()) / 1000.; }; -- cgit v1.2.3