X-Git-Url: http://git.tdb.fi/?p=libs%2Fvr.git;a=blobdiff_plain;f=source%2Foculusriftdevice.cpp;h=f73371f6c77d921f4ccc7ad3a04b6d2fb86060de;hp=f521a0e18ba86ec423022526806968fca65933b6;hb=ed0489e44b7cb9748e5086e1e78ef65e1c3d1930;hpb=c95fa921952df86629181e033a3a739cfc311fc6

diff --git a/source/oculusriftdevice.cpp b/source/oculusriftdevice.cpp
index f521a0e..f73371f 100644
--- a/source/oculusriftdevice.cpp
+++ b/source/oculusriftdevice.cpp
@@ -10,7 +10,8 @@ namespace VR {
 unsigned OculusRiftDevice::n_instances = 0;
 
 OculusRiftDevice::OculusRiftDevice():
-	priv(new Private)
+	priv(new Private),
+	frame_index(0)
 {
 	if(!n_instances)
 		ovr_Initialize();
@@ -51,5 +52,37 @@ OculusRiftCombiner *OculusRiftDevice::create_combiner() const
 	return new OculusRiftCombiner(*this);
 }
 
+void OculusRiftDevice::begin_frame()
+{
+	priv->frame_timing = ovrHmd_BeginFrameTiming(priv->ovr_hmd, ++frame_index);
+	timing_active = true;
+}
+
+void OculusRiftDevice::end_frame()
+{
+	glFinish();
+	ovrHmd_EndFrameTiming(priv->ovr_hmd);
+	timing_active = false;
+}
+
+double OculusRiftDevice::get_tracking_time() const
+{
+	if(!timing_active)
+		throw logic_error("timing not active");
+	return priv->frame_timing.ScanoutMidpointSeconds;
+}
+
+double OculusRiftDevice::get_timewarp_time() const
+{
+	if(!timing_active)
+		throw logic_error("timing not active");
+	return priv->frame_timing.TimewarpPointSeconds;
+}
+
+double OculusRiftDevice::get_current_time() const
+{
+	return ovr_GetTimeInSeconds();
+}
+
 } // namespace VR
 } // namespace Msp