Initial public release of Qt Gamepad module

Qt Gamepad is a Qt 5 module that adds support for using Gamepad devices
(like the XBox 360 controller) inside of Qt applications.

Change-Id: I5dff629dcfdcc5625a90274017b8e97f45e8fd30

1 files changed, 115 insertions, 0 deletions

diff --git a/src/plugins/gamepads/evdev/qevdevgamepadbackend_p.h b/src/plugins/gamepads/evdev/qevdevgamepadbackend_p.h
new file mode 100644
index 0000000..0371989
--- /dev/null
+++ b/src/plugins/gamepads/evdev/qevdevgamepadbackend_p.h
@@ -0,0 +1,115 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the Qt Gamepad module
+**
+** $QT_BEGIN_LICENSE:LGPL3$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPLv3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or later as published by the Free
+** Software Foundation and appearing in the file LICENSE.GPL included in
+** the packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 2.0 requirements will be
+** met: http://www.gnu.org/licenses/gpl-2.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QEVDEVGAMEPADCONTROLLER_H
+#define QEVDEVGAMEPADCONTROLLER_H
+
+#include <QtGamepad/QGamepadManager>
+#include <QtGamepad/private/qgamepadbackend_p.h>
+#include <QtCore/QHash>
+#include <QtCore/QVector>
+
+struct input_event;
+
+QT_BEGIN_NAMESPACE
+
+class QSocketNotifier;
+class QDeviceDiscovery;
+class QEvdevGamepadBackend;
+
+class QEvdevGamepadDevice : public QObject
+{
+    Q_OBJECT
+
+public:
+    QEvdevGamepadDevice(const QByteArray &dev, QEvdevGamepadBackend *backend);
+    ~QEvdevGamepadDevice();
+    QByteArray deviceName() const { return m_dev; }
+
+private slots:
+    void readData();
+
+private:
+    void processInputEvent(input_event *e);
+    bool openDevice(const QByteArray &dev);
+
+    QByteArray m_dev;
+    QEvdevGamepadBackend *m_backend;
+    int m_index;
+    int m_fd;
+    QSocketNotifier *m_notifier;
+    struct AxisInfo {
+        AxisInfo() : minValue(0), maxValue(1) { }
+        AxisInfo(int minValue, int maxValue) : minValue(minValue), maxValue(maxValue) { }
+        double normalized(int value) const;
+
+        int minValue;
+        int maxValue;
+    };
+    QHash<int, AxisInfo> m_axisInfo;
+    QGamepadManager::GamepadButton m_prevYHatButton;
+    QGamepadManager::GamepadButton m_prevXHatButton;
+    friend QDebug operator<<(QDebug dbg, const QEvdevGamepadDevice::AxisInfo &axisInfo);
+};
+
+QDebug operator<<(QDebug dbg, const QEvdevGamepadDevice::AxisInfo &axisInfo);
+
+class QEvdevGamepadBackend : public QGamepadBackend
+{
+    Q_OBJECT
+
+public:
+    QEvdevGamepadBackend();
+    bool start() Q_DECL_OVERRIDE;
+    void stop() Q_DECL_OVERRIDE;
+    int indexForDevice(const QByteArray &device);
+
+private slots:
+    void handleAddedDevice(const QString &device);
+    void handleRemovedDevice(const QString &device);
+
+private:
+    QEvdevGamepadDevice *newDevice(const QByteArray &device);
+
+    QDeviceDiscovery *m_discovery;
+    QVector<QEvdevGamepadDevice *> m_devices;
+    QHash<QByteArray, int> m_devIndex;
+    int m_nextIndex;
+};
+
+QT_END_NAMESPACE
+
+#endif // QEVDEVGAMEPADCONTROLLER_H