From 94f6380d693b8bece655885d37495a3a73c78b62 Mon Sep 17 00:00:00 2001
From: Max Kellermann <max@duempel.org>
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<typename T=rep>
+ 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<typename T=rep>
+ static constexpr SignedSongTime FromScale(T value, unsigned scale) {
+ return SignedSongTime(value * T(1000) / T(scale));
+ }
+
constexpr double ToDoubleS() const {
return double(count()) / 1000.;
};
--
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