tracker/tobii-eyex: initial revision

1 files changed, 135 insertions, 0 deletions

diff --git a/tracker-tobii-eyex/tobii-eyex.hpp b/tracker-tobii-eyex/tobii-eyex.hpp
new file mode 100644
index 00000000..d8bb3606
--- /dev/null
+++ b/tracker-tobii-eyex/tobii-eyex.hpp
@@ -0,0 +1,135 @@
+#pragma once
+
+/* Copyright (c) 2016 Stanislaw Halik <sthalik@misaki.pl>
+
+ * 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.
+ */
+
+#include <EyeX.h>
+
+#include "ui_tobii-eyex-dialog.h"
+#include "opentrack/plugin-api.hpp"
+#include "opentrack-compat/options.hpp"
+using namespace options;
+#include "opentrack-compat/timer.hpp"
+#include "spline-widget/functionconfig.h"
+#include "spline-widget/qfunctionconfigurator.h"
+
+#include <atomic>
+#include <QObject>
+#include <QMutex>
+
+enum tobii_mode
+{
+    tobii_relative,
+    tobii_absolute,
+};
+
+struct rel_settings : public QObject, public opts
+{
+    using s = slider_value;
+    value<slider_value> speed, dz_end_pt, expt_val, log_base;
+    rel_settings();
+private:
+    // linear coefficient to be the same as exponent
+    Map spline;
+};
+
+struct settings : public opts
+{
+    value<tobii_mode> mode;
+    settings() :
+        opts("tobii-eyex"),
+        mode(b, "mode", tobii_relative)
+    {}
+};
+
+class tobii_eyex_tracker : public ITracker
+{
+public:
+    tobii_eyex_tracker();
+    ~tobii_eyex_tracker() override;
+    void start_tracker(QFrame *) override;
+    void data(double *data) override;
+    bool center() override
+    {
+        do_center = true;
+        return true;
+    }
+private:
+    static constexpr const char* client_id = "opentrack-tobii-eyex";
+
+    static void call_tx_deinit();
+
+    static bool register_state_snapshot(TX_CONTEXTHANDLE ctx, TX_HANDLE* state_snapshot_ptr);
+    static std::atomic_flag atexit_done;
+    static void TX_CALLCONVENTION connection_state_change_handler(TX_CONNECTIONSTATE state, TX_USERPARAM param);
+    static void TX_CALLCONVENTION event_handler(TX_CONSTHANDLE async_data_handle, TX_USERPARAM param);
+    void gaze_data_handler(TX_HANDLE gaze_data_handle);
+    static void TX_CALLCONVENTION snapshot_committed_handler(TX_CONSTHANDLE async_data_handle, TX_USERPARAM param);
+    static void TX_CALLCONVENTION display_state_handler(TX_CONSTHANDLE async_data_handle, TX_USERPARAM param);
+    void process_display_state(TX_HANDLE display_state_handle);
+
+    using num = double;
+
+    template<typename funs_seq, typename bounds_seq>
+    static num piecewise(num x, const funs_seq& funs, const bounds_seq& bounds);
+
+    using fun_t = std::function<num(num)>;
+
+    num gain(num x);
+
+    settings s;
+    rel_settings rel_s;
+
+    TX_CONTEXTHANDLE dev_ctx;
+    TX_TICKET conn_state_changed_ticket;
+    TX_TICKET event_handler_ticket;
+    TX_HANDLE state_snapshot;
+    TX_HANDLE display_state;
+
+    QMutex global_state_mtx;
+
+    Timer t;
+
+    struct state
+    {
+        TX_REAL display_res_x, display_res_y;
+        TX_REAL px, py;
+        TX_REAL last_timestamp;
+        bool fresh;
+
+        state() : display_res_x(-1), display_res_y(-1), px(-1), py(-1), last_timestamp(0), fresh(false) {}
+        bool is_valid() const { return !(display_res_x < 0 || px < 0); }
+    } dev_state;
+
+    double yaw, pitch;
+    volatile bool do_center;
+};
+
+class tobii_eyex_dialog final : public ITrackerDialog
+{
+    Q_OBJECT
+public:
+    tobii_eyex_dialog();
+    void register_tracker(ITracker *) override {}
+    void unregister_tracker() override {}
+private:
+    Ui::tobii_eyex_dialog_widgets ui;
+    settings s;
+    rel_settings rs;
+private slots:
+    void do_ok();
+    void do_cancel();
+};
+
+class tobii_eyex_metadata : public Metadata
+{
+public:
+    QString name() { return QString("Tobii EyeX"); }
+    QIcon icon() { return QIcon(":/images/tobii-eyex-logo.png"); }
+};
+