Don't batch mouse motion for Sunshine

app/streaming/input/input.cpp

@@ -11,12 +11,13 @@
 
 #define MOUSE_POLLING_INTERVAL 5
 
-SdlInputHandler::SdlInputHandler(StreamingPreferences& prefs, NvComputer*, int streamWidth, int streamHeight)
+SdlInputHandler::SdlInputHandler(StreamingPreferences& prefs, NvComputer* computer, int streamWidth, int streamHeight)
     : m_MultiController(prefs.multiController),
       m_GamepadMouse(prefs.gamepadMouse),
       m_SwapMouseButtons(prefs.swapMouseButtons),
       m_ReverseScrollDirection(prefs.reverseScrollDirection),
       m_SwapFaceButtons(prefs.swapFaceButtons),
+      m_BatchMouseMotion(computer->isNvidiaServerSoftware),
       m_MouseMoveTimer(0),
       m_MousePositionLock(0),
       m_MouseWasInVideoRegion(false),
@@ -193,6 +194,7 @@ SdlInputHandler::SdlInputHandler(StreamingPreferences& prefs, NvComputer*, int s
     SDL_AtomicSet(&m_MouseDeltaY, 0);
     SDL_AtomicSet(&m_MousePositionUpdated, 0);
 
+    if (m_BatchMouseMotion) {
         Uint32 pollingInterval = QString(qgetenv("MOUSE_POLLING_INTERVAL")).toUInt();
         if (pollingInterval == 0) {
             pollingInterval = MOUSE_POLLING_INTERVAL;
@@ -204,6 +206,7 @@ SdlInputHandler::SdlInputHandler(StreamingPreferences& prefs, NvComputer*, int s
         }
 
         m_MouseMoveTimer = SDL_AddTimer(pollingInterval, SdlInputHandler::mouseMoveTimerCallback, this);
+    }
 }
 
 SdlInputHandler::~SdlInputHandler()

app/streaming/input/input.h

@@ -147,6 +147,7 @@ private:
     bool m_SwapMouseButtons;
     bool m_ReverseScrollDirection;
     bool m_SwapFaceButtons;
+    bool m_BatchMouseMotion;
     SDL_TimerID m_MouseMoveTimer;
     SDL_atomic_t m_MouseDeltaX;
     SDL_atomic_t m_MouseDeltaY;

app/streaming/input/mouse.cpp

@@ -181,6 +181,7 @@ void SdlInputHandler::handleMouseMotionEvent(SDL_MouseMotionEvent* event)
         return;
     }
 
+    if (m_BatchMouseMotion) {
         // Batch until the next mouse polling window or we'll get awful
         // input lag everything except GFE 3.14 and 3.15.
         if (m_AbsoluteMouseMode) {
@@ -190,6 +191,17 @@ void SdlInputHandler::handleMouseMotionEvent(SDL_MouseMotionEvent* event)
             SDL_AtomicAdd(&m_MouseDeltaX, event->xrel);
             SDL_AtomicAdd(&m_MouseDeltaY, event->yrel);
         }
+    }
+    else {
+        // On Sunshine, we can send input immediately
+        if (m_AbsoluteMouseMode) {
+            updateMousePositionReport(event->x, event->y);
+            flushMousePositionUpdate();
+        }
+        else {
+            LiSendMouseMoveEvent(event->xrel, event->yrel);
+        }
+    }
 }
 
 void SdlInputHandler::handleMouseWheelEvent(SDL_MouseWheelEvent* event)