#include "oculusriftdevice.h"
#include "oculusriftdevice_private.h"
+#include "stereoview.h"
using namespace std;
namespace Msp {
namespace VR {
+unsigned OculusRiftDevice::n_instances = 0;
+
OculusRiftDevice::OculusRiftDevice():
- priv(new Private)
+ priv(new Private),
+ frame_index(0)
{
- static OVR::System system(OVR::Log::ConfigureDefaultLog(OVR::LogMask_Debug));
+ if(!n_instances)
+ ovr_Initialize();
+ ++n_instances;
- priv->ovr_manager = OVR::DeviceManager::Create();
- priv->ovr_hmd = priv->ovr_manager->EnumerateDevices<OVR::HMDDevice>().CreateDevice();
+ priv->ovr_hmd = ovrHmd_Create(0);
if(!priv->ovr_hmd)
{
delete priv;
OculusRiftDevice::~OculusRiftDevice()
{
+ ovrHmd_Destroy(priv->ovr_hmd);
delete priv;
+
+ --n_instances;
+ if(!n_instances)
+ ovr_Shutdown();
+}
+
+void OculusRiftDevice::configure_view(StereoView &view) const
+{
+ ovrEyeRenderDesc left_desc = ovrHmd_GetRenderDesc(priv->ovr_hmd, ovrEye_Left, priv->ovr_hmd->DefaultEyeFov[ovrEye_Left]);
+ ovrEyeRenderDesc right_desc = ovrHmd_GetRenderDesc(priv->ovr_hmd, ovrEye_Right, priv->ovr_hmd->DefaultEyeFov[ovrEye_Left]);
+ view.set_eye_spacing(left_desc.HmdToEyeViewOffset.x-right_desc.HmdToEyeViewOffset.x);
}
OculusRiftCamera *OculusRiftDevice::create_camera(const GL::Camera &bc) const
OculusRiftCombiner *OculusRiftDevice::create_combiner() const
{
- OculusRiftCombiner *combiner = new OculusRiftCombiner;
+ return new OculusRiftCombiner(*this);
+}
- OVR::HMDInfo info;
- if(!priv->ovr_hmd->GetDeviceInfo(&info))
- {
- combiner->set_view_distance(info.EyeToScreenDistance/info.HScreenSize);
- combiner->set_lens_separation(info.LensSeparationDistance/info.HScreenSize);
- combiner->set_distortion(info.DistortionK[0], info.DistortionK[1], info.DistortionK[2], info.DistortionK[3]);
- combiner->set_red_aberration(info.ChromaAbCorrection[0], info.ChromaAbCorrection[1]);
- combiner->set_blue_aberration(info.ChromaAbCorrection[2], info.ChromaAbCorrection[3]);
- }
+void OculusRiftDevice::begin_frame()
+{
+ priv->frame_timing = ovrHmd_BeginFrameTiming(priv->ovr_hmd, ++frame_index);
+ timing_active = true;
+}
- return combiner;
+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