InputCommon / DolphinQt / Core: Add a "RelativeMouse" input which provides the raw delta mouse input

Co-authored-by: Jordan Woyak <jordan.woyak@gmail.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/Source/Core/InputCommon/ControllerInterface/DInput/DInputKeyboardMouse.h b/Source/Core/InputCommon/ControllerInterface/DInput/DInputKeyboardMouse.h
index c3834df528..ceda59d02c 100644
--- a/Source/Core/InputCommon/ControllerInterface/DInput/DInputKeyboardMouse.h
+++ b/Source/Core/InputCommon/ControllerInterface/DInput/DInputKeyboardMouse.h
@@ -7,6 +7,7 @@
 #include <windows.h>
 
 #include "Common/Matrix.h"
+#include "InputCommon/ControllerInterface/ControllerInterface.h"
 #include "InputCommon/ControllerInterface/CoreDevice.h"
 #include "InputCommon/ControllerInterface/DInput/DInput8.h"
 
@@ -14,14 +15,23 @@ namespace ciface::DInput
 {
 void InitKeyboardMouse(IDirectInput8* const idi8, HWND hwnd);
 
+using RelativeMouseState = RelativeInputState<Common::TVec3<LONG>>;
+
 class KeyboardMouse : public Core::Device
 {
 private:
   struct State
   {
     BYTE keyboard[256];
+
+    // Old smoothed relative mouse movement.
     DIMOUSESTATE2 mouse;
+
+    // Normalized mouse cursor position.
     Common::TVec2<ControlState> cursor;
+
+    // Raw relative mouse movement.
+    RelativeMouseState relative_mouse;
   };
 
   class Key : public Input
@@ -53,6 +63,7 @@ private:
   public:
     Axis(u8 index, const LONG& axis, LONG range) : m_axis(axis), m_range(range), m_index(index) {}
     std::string GetName() const override;
+    bool IsDetectable() const override { return false; }
     ControlState GetState() const override;
 
   private: