1 files changed, 87 insertions, 0 deletions
diff --git a/tracker-linux-joystick/ftnoir_tracker_linux_joystick.cpp b/tracker-linux-joystick/ftnoir_tracker_linux_joystick.cpp
new file mode 100644
index 00000000..8fa600e7
--- /dev/null
+++ b/tracker-linux-joystick/ftnoir_tracker_linux_joystick.cpp
@@ -0,0 +1,87 @@
+/* Copyright (c) 2013 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 "ftnoir_tracker_linux_joystick.h"
+#include "api/plugin-api.hpp"
+#include "compat/math.hpp"
+#include <QMutexLocker>
+
+joystick::joystick()
+{
+    QString device = getJoystickDevice(s.guid);
+    joy_fd = open(device.toUtf8().data(), O_RDONLY | O_NONBLOCK);
+}
+
+
+joystick::~joystick() {
+    if (joy_fd > 0) close(joy_fd);
+}
+
+module_status joystick::start_tracker(QFrame *)
+{
+    if (joy_fd == -1) return error("Couldn't open joystick");
+    return status_ok();
+}
+
+
+void joystick::data(double *data)
+{
+    int map[6] = {
+        s.joy_1 - 1,
+        s.joy_2 - 1,
+        s.joy_3 - 1,
+        s.joy_4 - 1,
+        s.joy_5 - 1,
+        s.joy_6 - 1,
+    };
+
+    const double limits[] = {
+        100,
+        100,
+        100,
+        180,
+        180,
+        180
+    };
+
+    const QString guid = s.guid;
+    int axes[8];
+    struct js_event event;
+    bool ret = true;
+    if (read(joy_fd, &event, sizeof(event)) > 0)
+    {
+        switch (event.type)
+        {
+        case JS_EVENT_AXIS:
+            if (event.number >= 8) break;
+            axes_state[event.number] = event.value;
+
+            break;
+        default:
+            /* Ignore init/button events. */
+            break;
+        }
+    }
+
+    for (int i = 0; i < 6; i++)
+    {
+        axes[i] = axes_state[i];
+    }
+    if (ret)
+    {
+        for (int i = 0; i < 6; i++)
+        {
+            int k = map[i];
+            if (k < 0 || k >= 8)
+                data[i] = 0;
+            else
+                data[i] = clamp(axes[k] * limits[i] / AXIS_MAX,
+                                -limits[i], limits[i]);
+        }
+    }
+}
+
+OPENTRACK_DECLARE_TRACKER(joystick, dialog_joystick, joystickDll)