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/* Copyright: "i couldn't care less what anyone does with the 5 lines of code i wrote" - mm0zct */
#include "ftnoir_tracker_rift_080.h"
#include "api/plugin-api.hpp"
#include "compat/util.hpp"
#include <QString>
#include <Extras/OVR_Math.h>
#include <OVR_CAPI_0_8_0.h>
using namespace OVR;
Rift_Tracker::Rift_Tracker() : old_yaw(0), hmd(nullptr)
{
}
Rift_Tracker::~Rift_Tracker()
{
if (hmd)
ovr_Destroy(hmd);
ovr_Shutdown();
}
void Rift_Tracker::start_tracker(QFrame*)
{
ovrResult code;
ovrGraphicsLuid luid = {{0}};
if (!OVR_SUCCESS(code = ovr_Initialize(nullptr)))
goto error;
code = ovr_Create(&hmd, &luid);
if (!OVR_SUCCESS(code))
goto error;
ovr_ConfigureTracking(hmd,
ovrTrackingCap_Orientation | ovrTrackingCap_MagYawCorrection | ovrTrackingCap_Position,
ovrTrackingCap_Orientation);
return;
error:
ovrErrorInfo err;
err.Result = code;
err.ErrorString[0] = '\0';
ovr_GetLastErrorInfo(&err);
QString strerror(err.ErrorString);
if (strerror.size() == 0)
strerror = "Unknown reason";
QMessageBox::warning(nullptr,
"Error",
QStringLiteral("Unable to start Rift tracker: %1").arg(strerror),
QMessageBox::Ok,
QMessageBox::NoButton);
}
void Rift_Tracker::data(double *data)
{
if (hmd)
{
ovrTrackingState ss = ovr_GetTrackingState(hmd, 0, false);
if (ss.StatusFlags & ovrStatus_OrientationTracked)
{
static constexpr float c_mult = 8;
static constexpr float c_div = 1/c_mult;
Vector3f axis;
float angle;
const Posef pose(ss.HeadPose.ThePose);
pose.Rotation.GetAxisAngle(&axis, &angle);
angle *= c_div;
float yaw, pitch, roll;
Quatf(axis, angle).GetYawPitchRoll(&yaw, &pitch, &roll);
yaw *= c_mult;
pitch *= c_mult;
roll *= c_mult;
double yaw_ = double(yaw);
if (s.useYawSpring)
{
yaw_ = old_yaw*s.persistence + (yaw_-old_yaw);
if(yaw_ > s.deadzone)
yaw_ -= s.constant_drift;
if(yaw_ < -s.deadzone)
yaw_ += s.constant_drift;
old_yaw = yaw_;
}
static constexpr double d2r = 180 / M_PI;
data[Yaw] = yaw_ * -d2r;
data[Pitch] = double(pitch) * d2r;
data[Roll] = double(roll) * d2r;
data[TX] = double(pose.Translation.x) * -1e2;
data[TY] = double(pose.Translation.y) * 1e2;
data[TZ] = double(pose.Translation.z) * 1e2;
}
}
}
OPENTRACK_DECLARE_TRACKER(Rift_Tracker, TrackerControls, FTNoIR_TrackerDll)
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