UI: Massive revamp, new features and improvements

src/frontend-common/xinput_source.h

@@ -0,0 +1,77 @@
+#pragma once
+#include "common/windows_headers.h"
+#include "input_source.h"
+#include <Xinput.h>
+#include <array>
+#include <functional>
+#include <mutex>
+#include <vector>
+
+class SettingsInterface;
+
+class XInputSource final : public InputSource
+{
+public:
+  XInputSource();
+  ~XInputSource();
+
+  bool Initialize(SettingsInterface& si, std::unique_lock<std::mutex>& settings_lock) override;
+  void UpdateSettings(SettingsInterface& si, std::unique_lock<std::mutex>& settings_lock) override;
+  void Shutdown() override;
+
+  void PollEvents() override;
+  std::vector<std::pair<std::string, std::string>> EnumerateDevices() override;
+  std::vector<InputBindingKey> EnumerateMotors() override;
+  bool GetGenericBindingMapping(const std::string_view& device, GenericInputBindingMapping* mapping) override;
+  void UpdateMotorState(InputBindingKey key, float intensity) override;
+  void UpdateMotorState(InputBindingKey large_key, InputBindingKey small_key, float large_intensity,
+                        float small_intensity) override;
+
+  std::optional<InputBindingKey> ParseKeyString(const std::string_view& device,
+                                                const std::string_view& binding) override;
+  std::string ConvertKeyToString(InputBindingKey key) override;
+
+private:
+  enum : u32
+  {
+    NUM_CONTROLLERS = XUSER_MAX_COUNT, // 4
+    NUM_BUTTONS = 15,
+  };
+
+  enum : u32
+  {
+    AXIS_LEFTX,
+    AXIS_LEFTY,
+    AXIS_RIGHTX,
+    AXIS_RIGHTY,
+    AXIS_LEFTTRIGGER,
+    AXIS_RIGHTTRIGGER,
+    NUM_AXES,
+  };
+
+  struct ControllerData
+  {
+    XINPUT_STATE last_state;
+    XINPUT_VIBRATION last_vibration = {};
+    bool connected = false;
+    bool has_large_motor = false;
+    bool has_small_motor = false;
+  };
+
+  using ControllerDataArray = std::array<ControllerData, NUM_CONTROLLERS>;
+
+  void CheckForStateChanges(u32 index, const XINPUT_STATE& new_state);
+  void HandleControllerConnection(u32 index);
+  void HandleControllerDisconnection(u32 index);
+
+  ControllerDataArray m_controllers;
+
+  HMODULE m_xinput_module{};
+  DWORD(WINAPI* m_xinput_get_state)(DWORD, XINPUT_STATE*);
+  DWORD(WINAPI* m_xinput_set_state)(DWORD, XINPUT_VIBRATION*);
+  DWORD(WINAPI* m_xinput_get_capabilities)(DWORD, DWORD, XINPUT_CAPABILITIES*);
+
+  static const char* s_axis_names[NUM_AXES];
+  static const char* s_button_names[NUM_BUTTONS];
+  static const u16 s_button_masks[NUM_BUTTONS];
+};