summaryrefslogtreecommitdiffhomepage
path: root/tracker-rift-140/rift-140.cpp
blob: 45bfcc97d2477879e0ce125d0a912c5cc41beb75 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
/* Copyright (c) 2013 mm0zct
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#include "rift-140.hpp"
#include "api/plugin-api.hpp"
#include "compat/util.hpp"
#include <Extras/OVR_Math.h>

#include <QString>

using namespace OVR;

rift_tracker_140::rift_tracker_140() : old_yaw(0), hmd(nullptr)
{
}

rift_tracker_140::~rift_tracker_140()
{
    if (hmd)
    {
        ovr_Destroy(hmd);
        ovr_Shutdown();
    }
}

void rift_tracker_140::start_tracker(QFrame*)
{
    if (OVR_FAILURE(ovr_Initialize(nullptr)))
        goto error;

    if(OVR_FAILURE(ovr_Create(&hmd, &luid)))
        goto error;

    return;
error:
    hmd = nullptr;

    ovrErrorInfo err;
    ovr_GetLastErrorInfo(&err);

    QString strerror(err.ErrorString);
    if (strerror.size() == 0)
        strerror = QStringLiteral("Unknown reason #%1").arg(err.Result);

    ovr_Shutdown();

    QMessageBox::warning(nullptr,
                         "Error",
                         QCoreApplication::translate("rift_tracker_140", "Unable to start Rift tracker: %1").arg(strerror),
                         QMessageBox::Ok,
                         QMessageBox::NoButton);
}

void rift_tracker_140::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_140, dialog_rift_140, rift_140Dll)