1 files changed, 75 insertions, 0 deletions
diff --git a/gfx/layers/SampleTime.cpp b/gfx/layers/SampleTime.cpp
new file mode 100644
index 0000000000..fd87b669f0
--- /dev/null
+++ b/gfx/layers/SampleTime.cpp
@@ -0,0 +1,75 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "SampleTime.h"
+
+namespace mozilla {
+namespace layers {
+
+SampleTime::SampleTime() : mType(eNull) {}
+
+/*static*/
+SampleTime SampleTime::FromVsync(const TimeStamp& aTime) {
+  MOZ_ASSERT(!aTime.IsNull());
+  return SampleTime(eVsync, aTime);
+}
+
+/*static*/
+SampleTime SampleTime::FromNow() { return SampleTime(eNow, TimeStamp::Now()); }
+
+/*static*/
+SampleTime SampleTime::FromTest(const TimeStamp& aTime) {
+  MOZ_ASSERT(!aTime.IsNull());
+  return SampleTime(eTest, aTime);
+}
+
+bool SampleTime::IsNull() const { return mType == eNull; }
+
+SampleTime::TimeType SampleTime::Type() const { return mType; }
+
+const TimeStamp& SampleTime::Time() const { return mTime; }
+
+bool SampleTime::operator==(const SampleTime& aOther) const {
+  return mTime == aOther.mTime;
+}
+
+bool SampleTime::operator!=(const SampleTime& aOther) const {
+  return !(*this == aOther);
+}
+
+bool SampleTime::operator<(const SampleTime& aOther) const {
+  return mTime < aOther.mTime;
+}
+
+bool SampleTime::operator<=(const SampleTime& aOther) const {
+  return mTime <= aOther.mTime;
+}
+
+bool SampleTime::operator>(const SampleTime& aOther) const {
+  return mTime > aOther.mTime;
+}
+
+bool SampleTime::operator>=(const SampleTime& aOther) const {
+  return mTime >= aOther.mTime;
+}
+
+SampleTime SampleTime::operator+(const TimeDuration& aDuration) const {
+  return SampleTime(mType, mTime + aDuration);
+}
+
+SampleTime SampleTime::operator-(const TimeDuration& aDuration) const {
+  return SampleTime(mType, mTime - aDuration);
+}
+
+TimeDuration SampleTime::operator-(const SampleTime& aOther) const {
+  return mTime - aOther.mTime;
+}
+
+SampleTime::SampleTime(TimeType aType, const TimeStamp& aTime)
+    : mType(aType), mTime(aTime) {}
+
+}  // namespace layers
+}  // namespace mozilla