Trace OSVR videobasedtracker plugin

紀錄一下 VideoBasedTracker plugin 的啟動流程，流程如下，

com_osvr_VideoBasedHMDTracker.cpp

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
class VideoBasedHMDTracker : boost::noncopyable {
    VideoBasedHMDTracker() {

    }

    // TODO_TRACE: 誰 call update()?
    OSVR_ReturnCode VideoBasedHMDTracker::update() {
        m_vbtracker.processImage()
    }

    osvr::vbtracker::VideoBasedTracker m_vbtracker;
};

class HardwareDetection {
    operator() {
        auto newTracker = osvr::pluginkit::registerObjectForDeletion(
            ctx, new VideoBasedHMDTracker(...));
    }
};

// Plugin 進入點
OSVR_PLUGIN(com_osvr_VideoBasedHMDTracker) {
    /// 告訴 core 建立一個 device object.
    osvr::pluginkit::registerDriverInstantiationCallback(
        ctx, "VideoBasedHMDTracker", new ConfiguredDeviceConstructor);
}

VideoBasedTracker.cpp

1
2
3
bool VideoBasedTracker::processImage(...) {

}