aboutsummaryrefslogtreecommitdiffstats
path: root/LibOVR/Src/Kernel/OVR_Timer.cpp
diff options
context:
space:
mode:
authorBrad Davis <[email protected]>2014-01-10 18:02:40 -0800
committerBrad Davis <[email protected]>2014-01-10 18:02:40 -0800
commitf28388ff2af14b56ef2d973b2f4f9da021716d4c (patch)
treedcfcb263eb87741878b6b323bfa50e1dcdc0ba1b /LibOVR/Src/Kernel/OVR_Timer.cpp
parentcdc395e194dcc287ec3749908b8e77b2499dd675 (diff)
Updating to 0.2.5c
Diffstat (limited to 'LibOVR/Src/Kernel/OVR_Timer.cpp')
-rw-r--r--LibOVR/Src/Kernel/OVR_Timer.cpp83
1 files changed, 76 insertions, 7 deletions
diff --git a/LibOVR/Src/Kernel/OVR_Timer.cpp b/LibOVR/Src/Kernel/OVR_Timer.cpp
index 682d621..84ff4a1 100644
--- a/LibOVR/Src/Kernel/OVR_Timer.cpp
+++ b/LibOVR/Src/Kernel/OVR_Timer.cpp
@@ -5,18 +5,33 @@ Content : Provides static functions for precise timing
Created : September 19, 2012
Notes :
-Copyright : Copyright 2012 Oculus VR, Inc. All Rights reserved.
+Copyright : Copyright 2013 Oculus VR, Inc. All Rights reserved.
-Use of this software is subject to the terms of the Oculus license
-agreement provided at the time of installation or download, or which
+Licensed under the Oculus VR SDK License Version 2.0 (the "License");
+you may not use the Oculus VR SDK except in compliance with the License,
+which is provided at the time of installation or download, or which
otherwise accompanies this software in either electronic or hard copy form.
+You may obtain a copy of the License at
+
+http://www.oculusvr.com/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, the Oculus VR SDK
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
************************************************************************************/
#include "OVR_Timer.h"
+#include "OVR_Log.h"
#if defined (OVR_OS_WIN32)
#include <windows.h>
+#elif defined(OVR_OS_ANDROID)
+#include <time.h>
+#include <android/log.h>
#else
#include <sys/time.h>
@@ -24,8 +39,15 @@ otherwise accompanies this software in either electronic or hard copy form.
namespace OVR {
-//-----------------------------------------------------------------------------------
-// ***** Timer Class
+
+//------------------------------------------------------------------------
+// *** Timer - Platform Independent functions
+
+double ovr_GetTimeInSeconds()
+{
+ return Timer::GetSeconds();
+}
+
UInt64 Timer::GetProfileTicks()
{
@@ -37,11 +59,53 @@ double Timer::GetProfileSeconds()
return TicksToSeconds(GetProfileTicks()-StartTime);
}
+#ifndef OVR_OS_ANDROID
+
+double Timer::GetSeconds()
+{
+ return (double)Timer::GetRawTicks() / (double) GetRawFrequency();
+}
+#endif
+
+
+//------------------------------------------------------------------------
+// *** Android Specific Timer
+
+
+#if defined(OVR_OS_ANDROID)
+
+// Returns global high-resolution application timer in seconds.
+double Timer::GetSeconds()
+{
+ return double(Timer::GetRawTicks()) * 0.000000001;
+}
+
+UInt64 Timer::GetRawTicks()
+{
+ // Choreographer vsync timestamp is based on.
+ struct timespec tp;
+ const int status = clock_gettime(CLOCK_MONOTONIC, &tp);
+
+ if (status != 0)
+ {
+ OVR_DEBUG_LOG(("clock_gettime status=%i", status ));
+ }
+ const UInt64 result = (UInt64)tp.tv_sec * (UInt64)(1000 * 1000 * 1000) + UInt64(tp.tv_nsec);
+ return result;
+}
+
+UInt64 Timer::GetRawFrequency()
+{
+ return MksPerSecond * 1000;
+}
+
+#endif
+
//------------------------------------------------------------------------
// *** Win32 Specific Timer
-#if (defined (OVR_OS_WIN32))
+#if defined (OVR_OS_WIN32)
CRITICAL_SECTION WinAPI_GetTimeCS;
volatile UInt32 WinAPI_OldTime = 0;
@@ -127,13 +191,16 @@ void Timer::shutdownTimerSystem()
{
}
+
+#if !defined(OVR_OS_ANDROID)
+
UInt64 Timer::GetRawTicks()
{
// TODO: prefer rdtsc when available?
+ UInt64 result;
// Return microseconds.
struct timeval tv;
- UInt64 result;
gettimeofday(&tv, 0);
@@ -148,6 +215,8 @@ UInt64 Timer::GetRawFrequency()
return MksPerSecond;
}
+#endif // !OVR_OS_ANDROID
+
#endif // !OVR_OS_WIN32