1 files changed, 93 insertions, 0 deletions
diff --git a/opentrack-dinput/win32-joystick.hpp b/opentrack-dinput/win32-joystick.hpp
new file mode 100644
index 00000000..c4fcdde2
--- /dev/null
+++ b/opentrack-dinput/win32-joystick.hpp
@@ -0,0 +1,93 @@
+#pragma once
+
+#ifdef _WIN32
+
+#include "dinput.hpp"
+#include "opentrack-compat/timer.hpp"
+#include "export.hpp"
+#include <cstring>
+#include <memory>
+#include <vector>
+#include <functional>
+#include <algorithm>
+#include <unordered_map>
+#include <QString>
+#include <QDebug>
+#include <QMutex>
+#include <QMutexLocker>
+#include <QWidget>
+
+namespace std {
+template<>
+struct hash<QString>
+{
+    inline std::size_t operator()(const QString& value) const
+    {
+        return qHash(value);
+    }
+};
+}
+
+struct OPENTRACK_DINPUT_EXPORT win32_joy_ctx
+{
+    using fn = std::function<void(const QString& guid, int btn, bool held)>;
+
+    struct joy
+    {
+        LPDIRECTINPUTDEVICE8 joy_handle;
+        QString guid, name;
+        bool pressed[128 + 4 * 4];
+        Timer first_timer;
+
+        joy(LPDIRECTINPUTDEVICE8 handle, const QString& guid, const QString& name);
+        ~joy();
+
+        void release();
+        bool poll(fn f);
+    };
+
+    using joys_t = std::unordered_map<QString, std::shared_ptr<joy>>;
+
+    static constexpr int joy_axis_size = 65535;
+
+    struct joy_info
+    {
+        QString name, guid;
+    };
+
+    void poll(fn f);
+    bool poll_axis(const QString& guid, int* axes);
+    std::vector<joy_info> get_joy_info();
+
+    win32_joy_ctx(const win32_joy_ctx&) = delete;
+    win32_joy_ctx& operator=(const win32_joy_ctx&) = delete;
+
+    win32_joy_ctx();
+    void refresh();
+
+    using di_t = dinput_handle::di_t;
+
+private:
+    static QString guid_to_string(const GUID guid);
+
+    class enum_state final
+    {
+        std::vector<QString> all;
+        joys_t joys;
+
+        static BOOL CALLBACK EnumJoysticksCallback(const DIDEVICEINSTANCE* pdidInstance, VOID* pContext);
+        static BOOL CALLBACK EnumObjectsCallback(const DIDEVICEOBJECTINSTANCE* pdidoi, VOID* ctx);
+
+    public:
+        static QMutex mtx;
+
+        enum_state();
+        ~enum_state();
+        void refresh();
+        const joys_t& get_joys() const { return joys; }
+    };
+
+    static enum_state enumerator;
+};
+
+#endif