webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

1 files changed, 49 insertions, 0 deletions

diff --git a/Source/ThirdParty/ANGLE/util/linux/LinuxTimer.cpp b/Source/ThirdParty/ANGLE/util/linux/LinuxTimer.cpp
new file mode 100644
index 000000000..196820580
--- /dev/null
+++ b/Source/ThirdParty/ANGLE/util/linux/LinuxTimer.cpp
@@ -0,0 +1,49 @@
+//
+// Copyright (c) 2015 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+
+// LinuxTimer.cpp: Implementation of a high precision timer class on Linux
+
+#include "linux/LinuxTimer.h"
+#include <iostream>
+
+LinuxTimer::LinuxTimer()
+    : mRunning(false)
+{
+}
+
+void LinuxTimer::start()
+{
+    clock_gettime(CLOCK_MONOTONIC, &mStartTime);
+    mRunning = true;
+}
+
+void LinuxTimer::stop()
+{
+    clock_gettime(CLOCK_MONOTONIC, &mStopTime);
+    mRunning = false;
+}
+
+double LinuxTimer::getElapsedTime() const
+{
+    struct timespec endTime;
+    if (mRunning)
+    {
+        clock_gettime(CLOCK_MONOTONIC, &endTime);
+    }
+    else
+    {
+        endTime = mStopTime;
+    }
+
+    double startSeconds = mStartTime.tv_sec + (1.0 / 1000000000) * mStartTime.tv_nsec;
+    double endSeconds = endTime.tv_sec + (1.0 / 1000000000) * endTime.tv_nsec;
+    return endSeconds - startSeconds;
+}
+
+Timer *CreateTimer()
+{
+    return new LinuxTimer();
+}